JoVE Visualize What is visualize?
Stop Reading. Start Watching.
Advanced Search
Stop Reading. Start Watching.
Regular Search
Find video protocols related to scientific articles indexed in Pubmed.
Maximal debulking liver resection as a beneficial treatment strategy for advanced and aggressive colorectal liver metastases.
Anticancer Res.
PUBLISHED: 10-03-2014
Show Abstract
Hide Abstract
A survival benefit is generally considered unobtainable following incomplete hepatic resection in patients with colorectal liver metastases. However, this question should be readdressed considering recent chemotherapy, often combining a monoclonal antibody directed against colorectal cancer with various classic and improved strategies. We examined whether a survival benefit could be obtained from maximal reduction surgery for colorectal liver metastases.
Related JoVE Video
Efficacy of tumor-targeting Salmonella typhimurium A1-R in combination with anti-angiogenesis therapy on a pancreatic cancer patient-derived orthotopic xenograft (PDOX) and cell line mouse models.
Oncotarget
PUBLISHED: 09-17-2014
Show Abstract
Hide Abstract
The aim of the present study was to examine the efficacy of tumor-targeting Salmonella typhimurium A1-R treatment following anti-vascular endothelial growth factor (VEGF) therapy on VEGF-positive human pancreatic cancer. A pancreatic cancer patient-derived orthotopic xenograft (PDOX) that was VEGF-positive and an orthotopic VEGF-positive human pancreatic cancer cell line (MiaPaCa-2-GFP) as well as a VEGF-negative cell line (Panc-1) were tested. Nude mice with these tumors were treated with gemcitabine (GEM), bevacizumab (BEV), and S. typhimurium A1-R. BEV/GEM followed by S. typhimurium A1-R significantly reduced tumor weight compared to BEV/GEM treatment alone in the PDOX and MiaPaCa-2 models. Neither treatment was as effective in the VEGF-negative model as in the VEGF-positive models. These results demonstrate that S. typhimurium A1-R following anti-angiogenic therapy is effective on pancreatic cancer including the PDOX model, suggesting its clinical potential.
Related JoVE Video
Autoimmune pancreatitis associated with pancreatic cyst: how can we manage it?
J Hepatobiliary Pancreat Sci
PUBLISHED: 09-12-2014
Show Abstract
Hide Abstract
Autoimmune pancreatitis (AIP) with cyst formation (ACF) is often refractory to corticosteroid treatment (CST).
Related JoVE Video
Programmed death-1 blockade enhances the antitumor effects of peptide vaccine-induced peptide-specific cytotoxic T lymphocytes.
Int. J. Oncol.
PUBLISHED: 09-07-2014
Show Abstract
Hide Abstract
Novel treatment modalities are required urgently in patients with hepatocellular carcinoma (HCC). A vaccine that induces cytotoxic T lymphocytes (CTLs) is an ideal strategy for cancer, and glypican-3 (GPC3) is a potential option for HCC. Blocking the programmed death-1 (PD-1)/PD-L1 pathway is a rational strategy to overcome tumor escape and tolerance toward CTLs. In the present study, we investigated whether anti-PD-1 blocking antibodies (?PD-1 Ab) enhanced the number of vaccine-induced peptide-specific CTLs in peripheral blood mononuclear cells (PBMCs) following the administration of GPC3 peptide vaccine to both patients and in a mouse model. The inhibitory receptor PD-1 was highly expressed in ex vivo GPC3-specific CTLs isolated from the PBMCs of vaccinated HCC patients. In vitro, interferon-? induced PD-L1 expression in liver cancer cell lines. In addition, PD-1 blockade increased the number of GPC3-specific CTLs, which degranulate against liver cancer cell lines. In vivo experiments using tumor-bearing mouse models showed that the combination therapy of peptide vaccine and ?PD-1 Ab suppressed tumor growth synergistically. PD-1 blockade increased the number of peptide-specific tumor-infiltrating T cells (TILs) and decreased the expression of inhibitory receptors on TILs. This study demonstrated that PD-1/PD-L1 blockade augmented the antitumor effects of a peptide vaccine by increasing the immune response of vaccine-induced CTLs, and provided a foundation for the clinical development of a combination therapy using a GPC3 peptide vaccine and ?PD-1 Ab.
Related JoVE Video
[Surgical strategies for middle and lower bile duct cancer].
Nihon Geka Gakkai Zasshi
PUBLISHED: 08-27-2014
Show Abstract
Hide Abstract
R0 resectability is thought to be one of the important prognostic factors in bile duct cancer. To achieve R0 resection, accurate preoperative diagnosis is essential. However, intraoperative frozen-section diagnosis sometimes reveals positive ductal margins. It is known that nodular infiltrative tumors tend to extend to the subserosal layer. On the other hand, papillary tumors often have extensive intramural extension, the so-called intraepithelial spread. This type of extension remains difficult to diagnose preoperatively. Some investigators query the clinical significance of positive ductal margins with carcinoma in situ or severe dysplasia. However, even in such instances, local recurrence 5 years after the initial surgery was reported in several articles. Middle bile duct cancer often extends to the upper (hilar bile duct) and lower (intrapancreatic bile duct) sections of the bile duct. To achieve R0 resection, a variety of operative procedures should be considered. For example, hepatopancreatoduodenectomy is required in patients with broad tumor extension up to the hilar bile ducts. However, hilar bile duct resection can result in R0 resection for patients with limited tumor extension. Thus, appropriate operative procedures should be selected based on patients' organ function and other possible prognostic factors, such as lymph node metastases.
Related JoVE Video
[A case of post-operative recurrence of pancreatic cancer in the residual pancreas treated by resection of the residual pancreas following radiological complete response achieved with second-line FOLFIRINOX].
Gan To Kagaku Ryoho
PUBLISHED: 08-19-2014
Show Abstract
Hide Abstract
A 65-year-old woman with carcinoma of the pancreatic body underwent Whipple's operation. After surgery, adjuvant chemotherapy with gemcitabine alone, and S-1 combined with gemcitabine was conducted. But one year later, a recurrent tumor was detected in the pancreatic tail. We administered FOLFIRINOX treatment for the recurrent tumor. After 6 courses, FOLFIRINOX treatment resulted in a partial response, and after 9 courses, a radiological complete response was achieved. We could then perform total pancreatotectomy and resection of the metastatic liver tumor. FOLFIRINOX as a second-line treat- ment was effective and safe in this case. In cases of gemcitabine and/or S-1 failure, FOLFIRINOX treatment should be considered.
Related JoVE Video
Low Infiltration of Peritumoral Regulatory T Cells Predicts Worse Outcome Following Resection of Colorectal Liver Metastases.
Ann. Surg. Oncol.
PUBLISHED: 08-14-2014
Show Abstract
Hide Abstract
The tumor-infiltrating lymphocyte (TIL) count in several types of cancer, including colorectal cancer and colorectal liver metastases (CRLM), reportedly predicts survival following resection; however, the prognostic significance of the TIL counts remains controversial.
Related JoVE Video
The tumor-educated-macrophage increase of malignancy of human pancreatic cancer is prevented by zoledronic acid.
PLoS ONE
PUBLISHED: 08-12-2014
Show Abstract
Hide Abstract
We previously defined macrophages harvested from the peritoneal cavity of nude mice with subcutaneous human pancreatic tumors as "tumor-educated-macrophages" (Edu) and macrophages harvested from mice without tumors as "naïve-macrophages" (Naïve), and demonstrated that Edu-macrophages promoted tumor growth and metastasis. In this study, Edu- and Naïve-macrophages were compared for their ability to enhance pancreatic cancer malignancy at the cellular level in vitro and in vivo. The inhibitory efficacy of Zoledronic acid (ZA) on Edu-macrophage-enhanced metastasis was also determined. XPA1 human pancreatic cancer cells in Gelfoam co-cultured with Edu-macrophages proliferated to a greater extent compared to XPA1 cells cultured with Naïve-macrophages (P = 0.014). XPA1 cells exposed to conditioned medium harvested from Edu culture significantly increased proliferation (P = 0.016) and had more migration stimulation capability (P<0.001) compared to cultured cancer cells treated with the conditioned medium from Naïve. The mitotic index of the XPA1 cells, expressing GFP in the nucleus and RFP in the cytoplasm, significantly increased in vivo in the presence of Edu- compared to Naïve-macrophages (P = 0.001). Zoledronic acid (ZA) killed both Edu and Naïve in vitro. Edu promoted tumor growth and metastasis in an orthotopic mouse model of the XPA1 human pancreatic cancer cell line. ZA reduced primary tumor growth (P = 0.006) and prevented metastasis (P = 0.025) promoted by Edu-macrophages. These results indicate that ZA inhibits enhanced primary tumor growth and metastasis of human pancreatic cancer induced by Edu-macrophages.
Related JoVE Video
Macroscopic type is a prognostic factor for recurrence-free survival after resection of gastric GIST.
Anticancer Res.
PUBLISHED: 07-31-2014
Show Abstract
Hide Abstract
Accurate evaluation of the biological behavior of Gastrointestinal stromal tumor and careful selection of patients with a high risk for tumor recurrence are necessary. In the present study, we analyzed prognostic factors in patients with GIST.
Related JoVE Video
Selective efficacy of zoledronic acid on metastasis in a patient-derived orthotopic xenograph (PDOX) nude-mouse model of human pancreatic cancer.
J Surg Oncol
PUBLISHED: 07-13-2014
Show Abstract
Hide Abstract
Patient-derived orthotopic xenograft (PDOX) nude-mouse models replicate the behavior of clinical cancer, including metastasis. The objective of the study was to determine the efficacy of zoledronic acid (ZA) on metastasis of a patient-derived orthotopic xenograft (PDOX) nude-mouse model of pancreatic cancer.
Related JoVE Video
Application of reduced-port laparoscopic total gastrectomy in gastric cancer preserving the pancreas and spleen.
Gastric Cancer
PUBLISHED: 06-25-2014
Show Abstract
Hide Abstract
The feasibility of using reduced-port laparoscopic total gastrectomy (RPLTG) for the treatment of gastric cancer remains unclear. This study aimed to address the potentially important advantages of this surgical technique.
Related JoVE Video
Colorectal laterally spreading tumors show characteristic expression of cell polarity factors, including atypical protein kinase C ?/?, E-cadherin, ?-catenin and basement membrane component.
Oncol Lett
PUBLISHED: 06-20-2014
Show Abstract
Hide Abstract
Colorectal flat-type tumors include laterally spreading tumors (LSTs) and flat depressed-type tumors. The former of which shows a predominant lateral spreading growth rather than an invasive growth. The present study examined the morphological characteristics of LSTs, in comparison with polypoid- or flat depressed-type tumors, along with the expression of atypical protein kinase C (aPKC) ?/?, a pivotal cell polarity regulator, and the hallmarks of cell polarity, as well as with type IV collagen, ?-catenin and E-cadherin. In total, 37 flat-type (24 LSTs and 13 flat depressed-type tumors) and 20 polypoid-type colorectal tumors were examined. The LSTs were classified as 15 LST adenoma (LST-A) and nine LST cancer in adenoma (LST-CA). An immunohistochemical examination was performed on aPKC ?/?, type IV collagen, ?-catenin and E-cadherin. The LST-A and -CA showed a superficial replacing growth pattern, with expression of ?-catenin and E-cadherin in the basolateral membrane and type IV collagen along the basement membrane. In addition, 86.6% of LST-A and 55.6% of LST-CA showed aPKC ?/? expression of 1+ (weak to normal intensity staining in the cytoplasm compared with the normal epithelium). Furthermore, ~45% of the polypoid-type adenomas showed 2+ (moderate intensity staining in the cytoplasm and/or nucleus) and 66.7% of the polypoid-type cancer in adenoma were 3+ (strong intensity staining in the cytoplasm and nucleus). A statistically significant positive correlation was observed between the expression of aPKC ?/? and ?-catenin (r=0.842; P<0.001), or type IV collagen (r=0.823; P<0.001). The LSTs showed a unique growth pattern, different from the expanding growth pattern presented by a polypoid tumor and invasive cancer. The growth characteristics of LST appear to be caused by adequate coexpression of ?-catenin, type IV collagen and aPKC ?/?.
Related JoVE Video
The efficacy of liver resection for multinodular hepatocellular carcinoma.
Anticancer Res.
PUBLISHED: 04-30-2014
Show Abstract
Hide Abstract
The aim of the present study was to evaluate the efficacy of liver resection for multinodular hepatocellular carcinoma (MNHCC).
Related JoVE Video
Optimizing the selection of low rectal cancer patients for intersphincteric resection by evaluating vertical invasion to the levator and external sphincter.
Colorectal Dis
PUBLISHED: 04-19-2014
Show Abstract
Hide Abstract
The indications for intersphincteric (ISR) anterior resection are not clearly defined. The aim of this study was to evaluate vertical extension of T2 or T3 low rectal cancer treated by rectal amputation to optimize patient selection for ISR.
Related JoVE Video
Laparoscopic bowel-lifting technique: a novel and standardized technique for laparoscopic low anterior resection for rectal cancer.
Surg Laparosc Endosc Percutan Tech
PUBLISHED: 04-02-2014
Show Abstract
Hide Abstract
Although surgeons have tried to reduce the number of ports in order to achieve better cosmesis and less postoperative pain, it may lead to increased risk for complications. Herein, we introduce a technique, "laparoscopic bowel-lifting (LBL) technique," which helps to reduce ports without additional trocars.
Related JoVE Video
Reversal of attachment to or invasion of major intrahepatic vessels by colorectal liver metastases according to prehepatectomy chemotherapy regimen.
Surgery
PUBLISHED: 03-25-2014
Show Abstract
Hide Abstract
Tumor reduction by present-day prehepatectomy chemotherapy can render initially unresectable disease resectable. However, little is known about whether effects on liver metastases with radiologically defined "attachment to or invasion of" major intrahepatic vessels differ between chemotherapy regimens with or without monoclonal antibodies. We compared histologically the relationships between liver tumors and major intrahepatic vessels after chemotherapy according to regimens used to treat colorectal liver metastasis.
Related JoVE Video
Staging accuracy of pancreatic cancer: comparison between non-contrast-enhanced and contrast-enhanced PET/CT.
Eur J Radiol
PUBLISHED: 03-13-2014
Show Abstract
Hide Abstract
Our aim was to clarify the diagnostic impact of contrast-enhanced (CE) (18)F-fluorodeoxyglucose (FDG)-positron emission tomography (PET)/computed tomography (CT) for staging of pancreatic cancer compared to non-CE PET/CT.
Related JoVE Video
Patients with CD133-negative colorectal liver metastasis have a poor prognosis after hepatectomy.
Ann. Surg. Oncol.
PUBLISHED: 02-20-2014
Show Abstract
Hide Abstract
The prognostic factors for patients with colorectal cancer liver metastasis (L-Mets) have not been fully described.
Related JoVE Video
Imaging and surgical planning for perihilar cholangiocarcinoma.
J Hepatobiliary Pancreat Sci
PUBLISHED: 02-12-2014
Show Abstract
Hide Abstract
Recent advances in multidetector computed tomography (MDCT) offer several benefits for management of perihilar tumors. Resection planning for perihilar cholangiocarcinoma should consider two factors: safety and curability. Recognition of individual anatomic variations is particularly important for avoiding intraoperative injury. In particular, hepatic arterial variations often restrict resection procedures. Extent of both longitudinal and vertical invasion by biliary tumors can be estimated from multiplanar reconstruction (MPR) images. Longitudinal extent of resection can be planned based on two anatomic landmarks, the U point and the P point, readily identifiable in preoperative 3-dimensional (3D) images and by intraoperative inspection. Concerning vertical invasion, when direct vascular invasion is suspected from a finding of attachment of tumor and vessels such as portal veins and/or hepatic arteries without a thin low-density plane of separation shown by MPR, these vessels should be resected en bloc with the tumor. Surgical team members can plan and simulate details of vascular resection and reconstruction using 3D images. Reduced operative morbidity and increased R0 resection rates are expected because of better planning of procedures. These techniques soon may increase long-term survival for patients with perihilar cholangiocarcinoma.
Related JoVE Video
Successful fluorescence-guided surgery on human colon cancer patient-derived orthotopic xenograft mouse models using a fluorophore-conjugated anti-CEA antibody and a portable imaging system.
J Laparoendosc Adv Surg Tech A
PUBLISHED: 02-04-2014
Show Abstract
Hide Abstract
Fluorescence-guided surgery (FGS) can enable successful cancer surgery where bright-light surgery often cannot. There are three important issues for FGS going forward toward the clinic: (a) proper tumor labeling, (b) a simple portable imaging system for the operating room, and (c) patient-like mouse models in which to develop the technology. The present report addresses all three.
Related JoVE Video
Gastroduodenal stenting with Niti-S stent: Long-term benefits and additional stent intervention.
Dig Endosc
PUBLISHED: 01-29-2014
Show Abstract
Hide Abstract
Self-expandable metallic stents have mainly been used for the palliation of malignant gastric outlet obstruction (GOO). However, their use in long-term survivors and the feasibility, safety and benefit of additional intervention for stent dysfunction remain controversial. The present study examined the long-term benefits of endoscopic gastroduodenal stenting.
Related JoVE Video
The modified Glasgow prognostic score as a predictor of survival after hepatectomy for colorectal liver metastases.
Ann. Surg. Oncol.
PUBLISHED: 01-23-2014
Show Abstract
Hide Abstract
The inflammation-based Glasgow prognostic score (GPS) has been demonstrated to be prognostic for various tumors. We investigated the value of the modified GPS (mGPS) for the prognosis of patients undergoing curative resection for colorectal liver metastases (CRLM).
Related JoVE Video
Efficacy of Salmonella typhimurium A1-R versus chemotherapy on a pancreatic cancer patient-derived orthotopic xenograft (PDOX).
J. Cell. Biochem.
PUBLISHED: 01-13-2014
Show Abstract
Hide Abstract
The aim of this study is to determine the efficacy of tumor-targeting Salmonella typhimurium A1-R (A1-R) on pancreatic cancer patient-derived orthotopic xenografts (PDOX). The PDOX model was originally established from a pancreatic cancer patient in SCID-NOD mice. The pancreatic cancer PDOX was subsequently transplanted by surgical orthotopic implantation (SOI) in transgenic nude red fluorescent protein (RFP) mice in order that the PDOX stably acquired red fluorescent protein (RFP)-expressing stroma for the purpose of imaging the tumor after passage to non-transgenic nude mice in order to visualize tumor growth and drug efficacy. The nude mice with human pancreatic PDOX were treated with A1-R or standard chemotherapy, including gemcitabine (GEM), which is first-line therapy for pancreatic cancer, for comparison of efficacy. A1-R treatment significantly reduced tumor weight, as well as tumor fluorescence area, compared to untreated control (P?=?0.011), with comparable efficacy of GEM, CDDP, and 5-FU. Histopathological response to treatment was defined according to Evans's criteria and A1-R had increased efficacy compared to standard chemotherapy. The present report is the first to show that A1-R is effective against a very low-passage patient tumor, in this case, pancreatic cancer. The data of the present report suggest A1-1 will have clinical activity in pancreatic cancer, a highly lethal and treatment-resistant disease and may be most effectively used in combination with other agents.
Related JoVE Video
Fluorescence-guided surgery in combination with UVC irradiation cures metastatic human pancreatic cancer in orthotopic mouse models.
PLoS ONE
PUBLISHED: 01-01-2014
Show Abstract
Hide Abstract
The aim of this study is to determine if ultraviolet light (UVC) irradiation in combination with fluorescence-guided surgery (FGS) can eradicate metastatic human pancreatic cancer in orthotopic nude-mouse models. Two weeks after orthotopic implantation of human MiaPaCa-2 pancreatic cancer cells, expressing green fluorescent protein (GFP), in nude mice, bright-light surgery (BLS) was performed on all tumor-bearing mice (n?=?24). After BLS, mice were randomized into 3 treatment groups; BLS-only (n?=?8) or FGS (n?=?8) or FGS-UVC (n?=?8). The residual tumors were resected using a hand-held portable imaging system under fluorescence navigation in mice treated with FGS and FGS-UVC. The surgical resection bed was irradiated with 2700 J/m2 UVC (254 nm) in the mice treated with FGS-UVC. The average residual tumor area after FGS (n?=?16) was significantly smaller than after BLS only (n?=?24) (0.135±0.137 mm2 and 3.338±2.929 mm2, respectively; p?=?0.007). The BLS treated mice had significantly reduced survival compared to FGS- and FGS-UVC-treated mice for both relapse-free survival (RFS) (p<0.001 and p<0.001, respectively) and overall survival (OS) (p<0.001 and p<0.001, respectively). FGS-UVC-treated mice had increased RFS and OS compared to FGS-only treated mice (p?=?0.008 and p?=?0.025, respectively); with RFS lasting at least 150 days indicating the animals were cured. The results of the present study suggest that UVC irradiation in combination with FGS has clinical potential to increase survival.
Related JoVE Video
Adjuvant hepatic arterial infusion chemotherapy with 5-Fluorouracil and interferon after curative resection of hepatocellular carcinoma: a preliminary report.
Anticancer Res.
PUBLISHED: 12-11-2013
Show Abstract
Hide Abstract
Background and Aim: Advanced hepatocellular carcinoma (HCC) with portal vein invasion or intrahepatic metastases has an unfavorable prognosis, even after curative hepatic resection. The aim of the present study was to evaluate the efficacy of adjuvant hepatic arterial infusion chemotherapy with 5-fluorouracil (5-FU) and systemic interferon (IFN).
Related JoVE Video
The impact of visceral obesity on surgical outcomes of laparoscopic surgery for colon cancer.
Int J Colorectal Dis
PUBLISHED: 11-19-2013
Show Abstract
Hide Abstract
Although obesity is considered as a risk factor for postoperative morbidity in abdominal surgery, its effect on the outcomes of laparoscopic-assisted colectomy (LAC) is still unclear. The technical difficulty and risk factor for postoperative complication in LAC are thought to be influenced by visceral obesity. The aim of this prospective study was to evaluate the impact of visceral fat on the surgical outcomes of LAC.
Related JoVE Video
[A case of locally advanced gastric cancer in which the patient underwent curative gastrectomy after treatment with systemic chemotherapy with bi-weekly s-1/docetaxel].
Gan To Kagaku Ryoho
PUBLISHED: 11-16-2013
Show Abstract
Hide Abstract
Here, we report the case of a patient with advanced gastric cancer complicated by pyloric stenosis and direct invasion into the pancreas who underwent curative resection after bi-weekly S-1/docetaxel(DS)therapy after gastrojejunostomy. A 73-year-old man consulted a general practitioner because of indigestibility, and upper gastrointestinal endoscopy indicated gastric cancer. He was referred to our hospital. Gastric cancer, whole stomach tumor(LMU), 150×80 mm, Type 3, T4a(SE), N2, M0, stage III B was diagnosed, and surgery was performed. The tumor was seen to directly invade the pancreas and the middle colic artery intraoperatively, so only a gastrojejunostomy was performed. After the operation, the patient was treated with DS therapy for 13 courses, and the response was defined as non-complete response(CR)and non-progressive disease (PD). During the second laparotomy, a curative operation was performed via distal gastrectomy because frozen-section diagnosis revealed that no cancer cells were present at the oral margin. Postoperatively, the tumor was diagnosed as LM, 10× 7 mm, 10×2.5 mm, pType 4, pT2(MP), pN0, pM0, CY0, stage I B. The patient is now receiving S-1 adjuvant chemotherapy and is still alive 2 years and 4 months after the first operation.
Related JoVE Video
Early-onset brain metastases in a breast cancer patient after pathological complete response to neoadjuvant chemotherapy.
Anticancer Res.
PUBLISHED: 11-14-2013
Show Abstract
Hide Abstract
Breast cancer patients who achieve a pathological complete response (pCR) after neoadjuvant chemotherapy (NAC) usually have a favourable prognosis. We report on a patient with early metastases to the brain after achieving pCR. The primary tumour was 7.0 cm in diameter with axillary lymph node metastases, hormone receptor-negative, human epidermal growth factor receptor-2-positive (3+), and histological grade 2 with 60% of cells positive for Ki-67. The patient underwent NAC followed by surgery, and achieved pCR. Five months after surgery, during adjuvant treatment with trastuzumab, she developed headache and dizziness. Brain imaging revealed multiple metastatic brain tumours. She received whole-brain radiotherapy followed by lapatinib and capecitabine therapy. At 7 months after surgery, she remains alive with a persistent mild headache. Physicians should be aware of the possibility of early brain metastases, and consider new treatment strategies to prevent brain metastases in high-risk patients who achieve pCR.
Related JoVE Video
Identification of HLA-A2 or HLA-A24-restricted CTL epitopes for potential HSP105-targeted immunotherapy in colorectal cancer.
Oncol. Rep.
PUBLISHED: 10-21-2013
Show Abstract
Hide Abstract
We previously reported that heat shock protein 105 (HSP105) is overexpressed in a variety of human cancers, including colorectal, pancreatic and esophageal cancer and has proven to be a novel biomarker for the immunohistochemical detection of these cancers. In the present study, we used HLA-transgenic mice (Tgm) and the peripheral blood mononuclear cells (PBMCs) of colorectal cancer patients to identify HLA-A2 and HLA-A24-restricted HSP105 epitopes, as a means of expanding the application of HSP105-based immunotherapy to HLA-A2- or HLA-A24-positive cancer patients. In addition, we investigated by ex vivo IFN-? ELISPOT assay whether the HSP105-derived peptide of cytotoxic T cells (CTLs) exists in PBMCs of pre-surgical colorectal cancer patients. We found that four peptides, HSP105 A2-7 (RLMNDMTAV), HSP105 A2-12 (KLMSSNSTDL), HSP105 A24-1 (NYGIYKQDL) and HSP105 A24-7 (EYVYEFRDKL), are potential HLA-A2 or HLA-A24-restricted CTL HSP105-derived epitopes. HSP105-specific IFN-?-secreting T cells were detected in 14 of 21 pre-surgical patients with colorectal cancer in response to stimulation with these four peptides. Our study raises the possibility that these HSP105 peptides are applicable to cancer immunotherapy in patients with HSP105-expressing cancer, particularly colorectal cancer.
Related JoVE Video
Preoperative S-1 and docetaxel combination chemotherapy in patients with locally advanced gastric cancer.
Cancer Chemother. Pharmacol.
PUBLISHED: 10-15-2013
Show Abstract
Hide Abstract
The combination of docetaxel and S-1 (DS) therapy is effective in patients with unrespectable gastric cancer and is expected to be a regimen in neoadjuvant setting for advanced gastric cancer. This study was held to evaluate the efficacy and safety of DS followed by surgery.
Related JoVE Video
Hand-held high-resolution fluorescence imaging system for fluorescence-guided surgery of patient and cell-line pancreatic tumors growing orthotopically in nude mice.
J. Surg. Res.
PUBLISHED: 09-15-2013
Show Abstract
Hide Abstract
In this study, we investigated the advantages of fluorescence-guided surgery (FGS) in mice of a portable hand-sized imaging system compared with a large fluorescence imaging system or a long-working-distance fluorescence microscope.
Related JoVE Video
[Strategy of liver resection during chemotherapy for otherwise unresectable colorectal metastases].
Nippon Rinsho
PUBLISHED: 08-22-2013
Show Abstract
Hide Abstract
With multidisciplinary management of patients with effective chemotherapy that can downstage metastases, more patients with previously inoperable disease can benefit from surgery. Surgery in isolation may be approaching technical limits, but now is likely to help more patients because of success of complementary strategies, particularly newer chemotherapy and targeted therapy. Leaving behind disappearing metastases after chemotherapy, margin-positive resection, staged liver resection, and liver-first reversed management permit potentially curative surgery for patients previously unable to survive resection. Further, survival benefit from maximum debulking surgery, like ovarian cancer, for colorectal liver metastases is uncertain at present, but likely. Individualized multidisciplinary treatment planning using such strategies is essential.
Related JoVE Video
Comparison of efficacy of Salmonella typhimurium A1-R and chemotherapy on stem-like and non-stem human pancreatic cancer cells.
Cell Cycle
PUBLISHED: 08-06-2013
Show Abstract
Hide Abstract
The XPA1 human pancreatic cancer cell line is dimorphic, with spindle stem-like cells and round non-stem cells. We report here the in vitro IC 50 values of stem-like and non-stem XPA1 human pancreatic cells cells for: (1) 5-fluorouracil (5-FU), (2) cisplatinum (CDDP), (3) gemcitabine (GEM), and (4) tumor-targeting Salmonella typhimurium A1-R (A1-R). IC 50 values of stem-like XPA1 cells were significantly higher than those of non-stem XPA1 cells for 5-FU (P = 0.007) and CDDP (P = 0.012). In contrast, there was no difference between the efficacy of A1-R on stem-like and non-stem XPA1 cells. In vivo, 5-FU and A1-R significantly reduced the tumor weight of non-stem XPA1 cells (5-FU; P = 0.028; A1-R; P = 0.011). In contrast, only A1-R significantly reduced tumor weight of stem-like XPA1 cells (P = 0.012). The combination A1-R with 5-FU improved the antitumor efficacy compared with 5-FU monotherapy on the stem-like cells (P = 0.004). The results of the present report indicate A1-R is a promising therapy for chemo-resistant pancreatic cancer stem-like cells.
Related JoVE Video
Immunological Impact of Neoadjuvant Chemoradiotherapy in Patients with Borderline Resectable Pancreatic Ductal Adenocarcinoma.
Ann. Surg. Oncol.
PUBLISHED: 07-22-2013
Show Abstract
Hide Abstract
Little is known about the immunological effect of neoadjuvant chemoradiotherapy (NACRT) in the tumor microenvironment of pancreatic ductal adenocarcinoma. The objective of this study was to examine the immunological modifications induced by NACRT in patients with pancreatic cancer.
Related JoVE Video
Severity and prognostic assessment of the endotoxin activity assay in biliary tract infection.
J Hepatobiliary Pancreat Sci
PUBLISHED: 06-20-2013
Show Abstract
Hide Abstract
Acute cholangitis and cholecystitis (AC) often progress to severe septic conditions. We evaluated the endotoxin activity assay (EAA) for assessment and prediction of the severity of AC.
Related JoVE Video
Imaging the efficacy of UVC irradiation on superficial brain tumors and metastasis in live mice at the subcellular level.
J. Cell. Biochem.
PUBLISHED: 06-05-2013
Show Abstract
Hide Abstract
The effect of UVC irradiation was investigated on a model of brain cancer and a model of experimental brain metastasis. For the brain cancer model, brain cancer cells were injected stereotactically into the brain. For the brain metastasis model, lung cancer cells were injected intra-carotidally or stereotactically. The U87 human glioma cell line was used for the brain cancer model, and the Lewis lung carcinoma (LLC) was used for the experimental brain metastasis model. Both cancer cell types were labeled with GFP in the nucleus and RFP in the cytoplasm. A craniotomy open window was used to image single cancer cells in the brain. This double labeling of the cancer cells with GFP and RFP enabled apoptosis of single cells to be imaged at the subcellular level through the craniotomy open window. UVC irradiation, beamed through the craniotomy open window, induced apoptosis in the cancer cells. UVC irradiation was effective on LLC and significantly extended survival of the mice with experimental brain metastasis. In contrast, the U87 glioma was relatively resistant to UVC irradiation. The results of this study suggest the use of UVC for treatment of superficial brain cancer or metastasis.
Related JoVE Video
Enhanced resection of orthotopic red-fluorescent-protein-expressing human glioma by fluorescence-guided surgery in nude mice.
Anticancer Res.
PUBLISHED: 06-01-2013
Show Abstract
Hide Abstract
Malignant glioma is the most common type of primary central nervous system cancer. Gliomas are very difficult to completely resect due to their invasiveness. In the present study, we compared fluorescence-guided and standard bright-light resection of a human glioma orthotopically implanted in nude mice. U87 human glioma cells, expressing red fluorescent protein (RFP), were injected stereotactically into the nude mouse brain through a craniotomy open window. Two weeks after cancer-cell implantation, gliomas were resected under fluorescence guidance or under bright light. U87-RFP tumors were clearly visualized with a long-working distance fluorescence microscope. Almost all cancer cells were removed using fluorescence-guided navigation without damage to the brain tissue. In contrast, brain tumors were difficult to visualize under bright light and many residual cancer cells remained in the brain after bright-light surgery. Fluorescence-guided surgery significantly extended the survival of the mice compared to those who underwent bright-light surgery. These results suggest that fluorescence-guided surgery has significant potential for brain cancer treatment.
Related JoVE Video
Subcellular real-time imaging of the efficacy of temozolomide on cancer cells in the brain of live mice.
Anticancer Res.
PUBLISHED: 06-01-2013
Show Abstract
Hide Abstract
Novel subcellular imaging technology has been developed in order to visualize drug efficacy on single cancer cells in the brain of mice in real time. The efficacy of temozolomide on cancer cells in the brain was determined by observation of subcellular cancer-cell dynamics over time through a craniotomy open window. Dual-color U87 human glioma and Lewis lung carcinoma (LLC) cells, expressing green fluorescent protein (GFP) in the nucleus and red fluorescent protein (RFP) in the cytoplasm, were imaged through the craniotomy open window 10 days after treatment with temozolomide (100 mg/kg i.p. for five consecutive days). After treatment, dual-color cancer cells with fragmented nuclei were visualized, indicating apoptosis. GFP-expressing apoptotic bodies and the destruction of RFP-expressing cytoplasm were also visualized. In addition, the terminal deoxynucleotidyltransferase-mediated deoxyuridine triphosphate nick-end labeling (TUNEL) assay was used to confirm apoptosis visualized by imaging of the behavior of GFP-labeled cancer-cell nuclei. Tumor volume in the treated group was significantly smaller than in the control group (at day 19, p<0.001). The present study demonstrates technology capable of subcellular real-time imaging in the brain that reports induction of cancer-cell apoptosis by therapeutic treatment. More effective drugs for brain cancer and brain metastasis can be screened and can be identified with this technology.
Related JoVE Video
Hepatocyte nuclear factor-1 ? inactivated hepatocellular adenomas in patient with congenital absence of the portal vein: a case report.
Pathol. Int.
PUBLISHED: 05-17-2013
Show Abstract
Hide Abstract
Hepatocellular adenomas (HCAs) have been recognized recently as a heterogeneous group, and are subclassified according to genotype as well as morphological characteristics. We report a case of a 35-year-old Japanese woman who exhibited hepatocyte nuclear factor (HNF)-1?-inactivated HCA in the background of the congenital absence of the portal vein (CAPV). On a dynamic contrast computed tomography (CT) scan, the hypovascular tumor enlarged from 1 cm to 3 cm and another tumor emerged in the course of 7 years. Because the possibility of hepatocellular carcinoma (HCC) with multiple metastases was not excluded, partial hepatectomy was performed. On a cut section, two well-demarcated tumors were observed and one tumor had a central fibrous scar. The histological features of these tumors were similar to those of focal nodular hyperplasia (FNH) with a central scar and HCA; however, these tumors were diagnosed as HNF-1?-inactivated HCA by immunohistochemistry according to the criteria of the current World Health Organization (WHO) classification. In non-tumorous liver tissue, an abnormal architecture of the vessels and a vague nodular appearance of lobuli were observed, which were likely to be those of nodular regenerated hyperplasia (NRH). We discuss its pathogenesis and relationship with CAPV.
Related JoVE Video
Clinical features of pancreaticobiliary maljunction: update analysis of 2nd Japan-nationwide survey.
J Hepatobiliary Pancreat Sci
PUBLISHED: 04-13-2013
Show Abstract
Hide Abstract
Pancreaticobiliary maljunction (PBM) is a congenital anomaly, which can be defined as a union of the pancreatic and biliary ducts located outside off the duodenal wall. We herein investigate clinical features of PBM including as the 2nd report of a Japanese nationwide survey.
Related JoVE Video
Factors predictive of recurrence after surgery for gastric cancer followed by adjuvant S-1 chemotherapy.
Anticancer Res.
PUBLISHED: 04-09-2013
Show Abstract
Hide Abstract
The Adjuvant Chemotherapy Trial of TS-1 for Gastric Cancer (ACTS-GC) demonstrated that S-1(TS-1, an oral fluoropyrimidine) was effective as adjuvant chemotherapy for patients with pathological stage II or III gastric cancer who underwent curative gastrectomy. The objective of this study was to clarify the risk factors for recurrence in patients who received S-1 adjuvant chemotherapy.
Related JoVE Video
Dynamic subcellular imaging of cancer cell mitosis in the brain of live mice.
Anticancer Res.
PUBLISHED: 04-09-2013
Show Abstract
Hide Abstract
The ability to visualize cancer cell mitosis and apoptosis in the brain in real time would be of great utility in testing novel therapies. In order to achieve this goal, the cancer cells were labeled with green fluorescent protein (GFP) in the nucleus and red fluorescent protein (RFP) in the cytoplasm, such that mitosis and apoptosis could be clearly imaged. A craniotomy open window was made in athymic nude mice for real-time fluorescence imaging of implanted cancer cells growing in the brain. The craniotomy window was reversibly closed with a skin flap. Mitosis of the individual cancer cells were imaged dynamically in real time through the craniotomy-open window. This model can be used to evaluate brain metastasis and brain cancer at the subcellular level.
Related JoVE Video
Remarkable tumor lysis in a hepatocellular carcinoma patient immediately following glypican-3-derived peptide vaccination: an autopsy case.
Hum Vaccin Immunother
PUBLISHED: 03-06-2013
Show Abstract
Hide Abstract
We recently reported the safety, immunological and clinical responses to a GPC3-derived peptide vaccine in a phase I clinical trial of patients with advanced hepatocellular carcinoma (HCC). We conducted a subsequent trial in advanced HCC to assess the histopathological findings before and after vaccination with the GPC3 peptide. Here, we present the clinical course and the pathological study including the autopsy of a patient with advanced HCC in the ongoing clinical trial. A 62-year old patient suffering from HCC refractory to sorafenib therapy received the GPC3 peptide vaccine. The patient had fever and remarkably impaired liver function twice after vaccination. Contrast-enhanced CT after the second vaccination showed multiple low-density areas in the liver tumor, indicating tumor necrosis. In contrast, the tumor thrombus in the right atrium increased. The patient discontinued protocol treatment due to disease progression and died 30 days after the second vaccination. An autopsy was performed to determine the main cause of death and to evaluate the antitumor effect of the vaccination. A histological examination showed central necrosis in most of the intrahepatic tumor. The main cause of death was circulatory failure due to tumor thrombus, which occupied most of the right atrium. An immunohistochemical analysis revealed infiltration of CD8-positive T cells in the residual carcinoma, but not within the cirrhotic area. Ex vivo IFN-? enzyme-linked immunospot analysis revealed vaccine-induced immune-reactivity against the GPC3 peptide. A histopathological examination at the estimated time of a strong immunological response demonstrated a GPC3 peptide vaccination-induced cytotoxic T-lymphocyte response with an anti-tumor effect.
Related JoVE Video
Solitary rib recurrence of hilar cholangiocarcinoma 10 years after resection: report of a case.
Clin J Gastroenterol
PUBLISHED: 03-03-2013
Show Abstract
Hide Abstract
A 61-year-old female underwent right hemihepatectomy and caudate lobectomy for hilar cholangiocarcinoma in 1999. Ten years later, increasing serum carbohydrate 19-9 was detected by routine follow-up. Subsequent positron emission tomography revealed an asymptomatic lesion in the right 11th rib. As the mass steadily grew in size, the lesion was resected en bloc with the affected rib and muscle. The histopathological findings closely resembled those of the primary cholangiocarcinoma. Thus, the tumor was diagnosed as a metastatic recurrence 10 years after resection of the primary tumor. There have been a few reports of cholangiocarcinoma recurrence in long-term survivors at the surgical margins, peritoneum, or transhepatic drainage route. However, there are no reports of solitary extra-abdominal recurrence. This case highlights the need for careful follow-up of patients with cholangiocarcinoma and nodal metastasis, even in the absence of recurrence for >5 years after curative resection.
Related JoVE Video
Tumor diameter and Ki-67 expression in biopsy could be diagnostic markers discriminating from adenoma and early stage cancer in patients with ampullary tumors.
J Hepatobiliary Pancreat Sci
PUBLISHED: 02-23-2013
Show Abstract
Hide Abstract
Ampullary early stage cancer (early CA) potentially harbors lymphovascular invasion; there are few data on markers that could differentiate adenoma and early CA.
Related JoVE Video
Conditionally replicative adenoviral vectors for imaging the effect of chemotherapy on pancreatic cancer cells.
Cancer Sci.
PUBLISHED: 02-13-2013
Show Abstract
Hide Abstract
Pancreatic cancer has a poor prognosis after complete macroscopic resection combined with chemotherapy. Even after neoadjuvant chemotherapy, R0 resection is often not possible. Moreover, current imaging techniques cannot reliably distinguish viable cancer cells from scar tissue at the resectional margin. We investigated the use of a conditionally replicative adenovirus (CRAd), Ad5/3Cox2CRAd-?E3ADP-Luc, for imaging the effects of chemotherapy. The CRAd infectivity of pancreatic cancer cells was enhanced by a chimeric Ad5/3 fiber, E1A expression was under the control of the Cox2 promoter, and the luciferase gene was inserted adjacent to the adenovirus death protein (ADP) gene. Subcutaneous xenografts of the pancreatic cancer cell line MiaPaCa-2 were established in 24 BALB/c nu/nu mice. When xenografts reached a diameter of 4-6 mm (day 1), the mice were injected i.p. with either PBS (group A; n = 12) or 1000 mg/kg gemcitabine (group B; n = 12), weekly. On days 19, 26, 33, and 40, CRAd were injected intratumorally into three mice in groups A and B. Bioluminescence was imaged 72 h after CRAd injection, and gross tumor volumes were measured then tumors were removed for ex vivo histopathology using H&E and Ki-67 staining. Correlations between gross tumor volume, pathological evaluation of the percentage of viable tumor area, and CRAd bioluminescence were analyzed. Bioluminescence correlated closely with the percentage of viable tumor area (R = 0.96), but not with gross tumor volume (R = 0.31). Therefore, CRAds might be reliable imaging tools for monitoring chemotherapy in pancreatic cancer, and could improve our ability to distinguish viable tumor cells from scar tissue.
Related JoVE Video
Related JoVE Video
A novel scoring system for arterial invasion of pancreatic body and tail cancer based on multidetector row computed tomography and biomarkers.
Pancreatology
PUBLISHED: 01-22-2013
Show Abstract
Hide Abstract
The absence of major-vessel involvement is a crucial factor in the resectability and prognosis of pancreatic cancer. However, arterial invasion cannot be evaluated adequately using imaging findings alone. We therefore developed a scoring system to assess arterial invasion by pancreatic adenocarcinoma using multidetector row computed tomography (MDCT) and serum tumor markers.
Related JoVE Video
Septic pulmonary embolism originated from subcutaneous abscess after living donor liver transplantation: a pitfall of postoperative management.
Clin J Gastroenterol
PUBLISHED: 01-21-2013
Show Abstract
Hide Abstract
The use of immunosuppressants after liver transplantation (LT) is associated with postoperative complications, including infections. A 49-year-old male underwent living-donor (LD) LT because of primary sclerosing cholangitis. He was treated with tacrolimus, mycophenolate mofetil, and steroids as immunosuppressants, discharged on postoperative day (POD) 40, and re-admitted because of severe acute cellular rejection on POD 48. Three courses of steroid pulse therapy were performed, and continuous peripheral intravenous drip infusion therapy via the left forearm was necessary for 20 days because of appetite loss. The patient was discharged on POD 83, but re-admitted on POD 87 with pyrexia. A subcutaneous abscess was present at a puncture wound on the left forearm formed by an intravenous drip during the last hospital stay. Furthermore, computed tomography showed five pieces of cavitary or wedge-shaped nodules in the bilateral lung. Because sputum revealed the presence of Gram-positive coccus, and subcutaneous abscess and blood cultures revealed Staphylococcus aureus, the pathogenesis was septic pulmonary embolism (SPE) secondary to S. aureus septicemia originating from a subcutaneous abscess formed by an intravenous drip. The patient was treated with drainage of the subcutaneous abscess and antibiotic therapy, and recovered immediately. Although there have been few reports of SPE after LDLT, SPE is fatal in up to 13.3 % of patients. Early diagnosis, drainage of the infectious source, and appropriate use of antimicrobial therapy should be necessary to overcome SPE. Furthermore, the identical intravenous catheters should be removed whenever possible to avoid infectious complications including SPE for patients who receive steroid pulse therapy after LDLT.
Related JoVE Video
Collapsin response mediator protein 2 is involved in regulating breast cancer progression.
Breast Cancer
PUBLISHED: 01-21-2013
Show Abstract
Hide Abstract
BACKGROUND: Altered expression of collapsin response mediator proteins (CRMPs) has been reported in several malignant tumors, including downregulation of CRMP1 in lung cancer and upregulation of CRMP2 in colorectal cancer. This study aimed to investigate the relationship between CRMP expression and clinicopathological characteristics in patients with breast cancer. METHODS: Twenty-two breast cancer and four normal breast tissues were used to assess CRMP mRNA expression. The average expression level of each CRMP (CRMP1-5) mRNA was analyzed in a subset of breast cancer specimens and compared with that in normal breast tissue by real-time quantitative reverse-transcription polymerase chain reaction. Furthermore, 173 breast cancer specimens and matching normal breast controls were used for immunohistochemistry based on the tissue microarray technique. Levels of CRMP2 and phosphorylated CRMP2 protein were assessed, and possible correlations between the clinicopathological characteristics were evaluated. RESULTS: The expression of CRMP2 mRNA was significantly decreased in breast cancer tissues, while that of the other CRMPs was similar between normal and breast cancer tissues. Immunohistochemistry revealed that CRMP2 protein expression was also decreased in breast cancer tissues (P < 0.001). Phosphorylated CRMP2 was observed in the nuclei of breast cancer cells but not in normal mammary cells (P < 0.001). Furthermore, nuclear phosphorylated CRMP2 expression was increased in proportion to the histological grade and triple-negative subtype. CONCLUSIONS: Reduced CRMP2 expression and elevated expression of nuclear phosphorylated CRMP2 may be associated with breast cancer progression.
Related JoVE Video
Covered self-expandable metal stent deployment promises safe neoadjuvant chemoradiation therapy in patients with borderline resectable pancreatic head cancer.
Dig Endosc
PUBLISHED: 01-17-2013
Show Abstract
Hide Abstract
Patients with borderline resectable pancreatic head cancer (BRPHC) have been treated with neoadjuvant chemoradiation therapy (NACRT) using metallic stents. The aim of the present study was to evaluate the efficacy and complications of covered self-expanding metallic stents (CSEMS) during the NACRT and surgical period.
Related JoVE Video
aPKC?/? is a beneficial prognostic marker for pancreatic neoplasms.
Pancreatology
PUBLISHED: 01-13-2013
Show Abstract
Hide Abstract
Pancreatic cancer is a lethal disease. Overall survival is typically 6 months from diagnosis. Determination of prognostic factors in pancreatic cancer that would allow identification of patients who could potentially benefit from aggressive treatment is important. However, until date, there are no established reliable prognostic factors for pancreatic cancer patients. Herein, we propose a beneficial biomarker which is significantly correlated with the prognosis in pancreatic cancer patients. Atypical protein kinase C ?/? (aPKC?/?) is overexpressed and has been implicated in the progression of several cancers. We tested the expression levels of aPKC?/? in two types of pancreatic neoplasm, pancreatic ductal adenocarcinoma (PDAC) and intraductal papillary mucinous neoplasms (IPMNs), by immunohistochemistry. Examination of the aPKC?/? expression levels in surgically resected specimens of PDCA (n = 115) demonstrated that the expression levels of aPKC?/?in PDAC had prognostic implications, independent of the Tumor-Node-Metastasis classification and World Health Organization tumor grade. In the case of IPMNs (n = 46) also, the expression levels of aPKC?/?in IPMN were found to be of prognostic importance, independent of the World Health Organization histological grade or morphological type. Interestingly, high expression levels of aPKC?/? were significantly correlated with a worse histological grade (p = 0.010) and advanced stage of the tumor (p = 0.0050) in IPMN patients. These findings suggest that high expression levels of aPKC?/? could be involved in the malignant transformation of IPMNs. Based on these observations, we propose the expression level of aPKC?/? as a prognostic marker common to different types of pancreatic neoplasms.
Related JoVE Video
High expression of ATP-binding cassette transporter ABCC11 in breast tumors is associated with aggressive subtypes and low disease-free survival.
Breast Cancer Res. Treat.
PUBLISHED: 01-04-2013
Show Abstract
Hide Abstract
ATP-binding cassette (ABC) transporters are membrane proteins that efflux various compounds from cells, including chemotherapeutic agents, and are known to affect multidrug resistance. Recent reports disagree on whether ABCC11 is a risk factor for breast tumorigenesis, but its expression in breast cancer is poorly investigated. We hypothesized that both frequency and expression levels of ABC transporters in breast tumors would vary by cancer subtype, and be associated with prognosis. Here, we constructed a tissue microarray breast tumor samples from 281 patients, and analyzed expressions of ABCB1, ABCC1, ABCC11, and ABCG2 immunohistochemically. Breast cancer subtypes were determined by immunohistochemistry of estrogen receptor, progesterone receptor, and human epidermal growth factor receptor 2 (HER2). Protein expression was correlated to clinicopathological characteristics, clinical follow-up, and pathological complete response to neoadjuvant chemotherapy. The tissue microarray comprised 191 luminal A (68.0 %), 17 luminal B (6.0 %), 27 HER2 (9.6 %), and 46 triple-negative (16.4 %) samples. ABCC1 and ABCC11 expressions were associated with significantly shorter disease-free survival (P = 0.027 and P = 0.003, respectively). ABCC1, ABCC11, and ABCG2, but not ABCB1, were expressed significantly more, and more frequently, in aggressive subtypes. Patients with HER2+ and triple-negative tumor subtypes that expressed high levels of ABCC11 had significantly worse disease-free survival (P = 0.017 and P < 0.001, respectively). We have shown, for the first time, that ABCC1, ABCC11, and ABCG2 are highly expressed in aggressive breast cancer subtypes, and that tumor ABCC11 expression is associated with poor prognosis.
Related JoVE Video
Surgical outcome and proposed strategy for biliary stricture after living donor liver transplantation: a single center analysis.
Hepatogastroenterology
PUBLISHED: 01-04-2013
Show Abstract
Hide Abstract
To clarify the surgical outcome and propose an appropriate strategy for biliary stricture (BS) treatment after living donor liver transplantation (LDLT).
Related JoVE Video
Therapeutic strategy for esophageal cancer based on solitary lymph node metastasis.
Hepatogastroenterology
PUBLISHED: 11-17-2011
Show Abstract
Hide Abstract
It is essential to perform appropriate lymph node dissection in esophageal cancer. However, it may be beneficial if lymph node dissection could be minimized to reduce the surgical stress.
Related JoVE Video
Single-incision laparoscopic surgery using colon-lifting technique for colorectal cancer: a matched case-control comparison with standard multiport laparoscopic surgery in terms of short-term results and access instrument cost.
Surg Endosc
PUBLISHED: 09-19-2011
Show Abstract
Hide Abstract
Single-incision laparoscopic surgery (SILS) has been used for colorectal cancer as a minimally invasive procedure. However, there are still difficulties concerning effective triangulation and countertraction. The studys purpose was to clarify the usefulness of the colon-lifting technique (CLT) in SILS for colorectal cancer.
Related JoVE Video
Semaphorin 4D, a lymphocyte semaphorin, enhances tumor cell motility through binding its receptor, plexinB1, in pancreatic cancer.
Cancer Sci.
PUBLISHED: 09-13-2011
Show Abstract
Hide Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a highly malignant tumor, for which the development of new biomarkers and therapeutic targets has become critical. The main cause of poor prognosis in PDAC patients is the high invasive and metastatic potential of the cancer. In the present study, we report a new signaling pathway that was found to mediate the enhanced tumor cell motility in pancreatic cancer. Semaphorin 4D (Sema4D) is a ligand known to be expressed on different cell types, and has been reported to be involved in the regulation of immune functions, epithelial morphogenesis, and tumor growth and metastasis. In this study, we revealed for the first time that the cancer tissue cells expressing Sema4D in PDAC are tumor-infiltrating lymphocytes. The overexpression of Sema4D and of its receptor, plexinB1, was found to be significantly correlated with clinical factors, such as lymph node metastasis, distant metastasis, and poor prognosis in patients with PDAC. Through in vitro analysis, we demonstrated that Sema4D can potentiate the invasiveness of pancreatic cancer cells and we identified the downstream molecules. The binding of Sema4D to plexinB1 induced small GTPase Ras homolog gene family, member A activation and resulted in the phosphorylation of MAPK and Akt. In addition, in terms of potential therapeutic application, we clearly demonstrated that the enhanced-cell invasiveness induced by Sema4D could be inhibited by knockdown of plexinB1, suggesting that blockade of plexinB1 might diminish the invasive potential of pancreatic cancer cells. Our findings provide new insight into possible prognostic biomarkers and therapeutic targets in PDAC patients.
Related JoVE Video
Complications of the treatment of endoscopic biliary strictures developing after liver transplantation.
J Hepatobiliary Pancreat Sci
PUBLISHED: 08-17-2011
Show Abstract
Hide Abstract
Bile duct strictures remain a major source of morbidity after orthotopic liver transplantation (OLT). Endoscopic management by the conventional methods of biliary dilatation and/or stent placement has been successful, but sometimes severe complications occur, necessitating prolonged therapy. The aim of this study is to clarify the complications of the endoscopic approach for endoscopic dilatation and/or stent placement.
Related JoVE Video
Liver resection for advanced or aggressive colorectal cancer metastases in the era of effective chemotherapy: a review.
Int. J. Clin. Oncol.
PUBLISHED: 07-07-2011
Show Abstract
Hide Abstract
Liver surgery has been known to cure metastatic colorectal cancer in a small proportion of patients. However, advances in procedural technique and chemotherapy now allow more patients to have safe, potentially curative surgery. Here we review surgery for unresectable colorectal liver metastases using an expert multidisciplinary approach. With multidisciplinary management of patients with effective chemotherapy that can downstage metastases, more patients with previously inoperable disease can benefit from surgery. Portal vein embolization results in hypertrophy of the future liver remnant; on occasions, combining embolization with staged liver resection permits potentially curative surgery for patients previously unable to survive resection. However, increasing use of chemotherapy has raised awareness of potential hepatotoxicity and other deleterious effects of cytotoxic agents. Prolonged prehepatectomy chemotherapy therefore can reduce resectability even using a 2-stage procedure. Suitable timing of surgery for unresectable liver metastases during chemotherapy is critical. Because of advances in chemotherapy, colorectal cancer, like ovarian cancer, can now show survival benefit from maximum surgical debulking. Benefit from such maximum hepatic debulking surgery for metastatic colorectal disease is uncertain, but likely. Surgery in isolation may be approaching technical limits, but is now likely to help more patients because of the success of complementary strategies, particularly newer chemotherapy and targeted therapy. Expert individualized multidisciplinary treatment planning and problem-solving is essential.
Related JoVE Video
Solo surgery in laparoscopic colectomy: a case-matched study comparing robotic and human scopist.
Hepatogastroenterology
PUBLISHED: 06-14-2011
Show Abstract
Hide Abstract
Recent technical developments have enabled solo surgery in laparoscopic surgery. Our experience of solo surgery using the voice-guided robotic arm in laparoscopic colectomy for colorectal cancer was analyzed.
Related JoVE Video
Postchemotherapy histological analysis of major intrahepatic vessels for reversal of attachment or invasion by colorectal liver metastases.
Cancer
PUBLISHED: 05-13-2011
Show Abstract
Hide Abstract
Although tumor reduction via present-day prehepatectomy chemotherapy can render initially unresectable disease potentially resectable, little is known about the effects of such chemotherapy on liver metastases with known attachment to or invasion of major intrahepatic vessels. We histologically assessed the relationships of liver tumors to major intrahepatic vessels after chemotherapy.
Related JoVE Video
The influence of viral hepatitis status on long-term HCC outcome in patients with non-cirrhotic livers.
Anticancer Res.
PUBLISHED: 04-19-2011
Show Abstract
Hide Abstract
To evaluate the influence of viral hepatitis status on the long-term outcome of patients with hepatocellular carcinoma (HCC) in non-cirrhotic livers.
Related JoVE Video
Efficacy of surgery for lung metastases from colorectal cancer synchronous to or following that for liver metastases.
Anticancer Res.
PUBLISHED: 04-19-2011
Show Abstract
Hide Abstract
To evaluate the validity of surgical therapy for isolated hepatic and pulmonary colorectal metastases.
Related JoVE Video
A giant adrenal pseudocyst presenting with right hypochondralgia and fever: a case report.
J Med Case Rep
PUBLISHED: 04-04-2011
Show Abstract
Hide Abstract
Adrenal pseudocysts are rare cystic masses that arise from the adrenal gland and which are usually non-functional and asymptomatic. Adrenal pseudocysts consist of a fibrous wall without an epithelial or endothelial lining. We report the case of a patient with a giant adrenal pseudocyst presenting with right hypochondralgia and high fever.
Related JoVE Video
Emergency versus elective living-donor liver transplantation: a comparison of a single center analysis.
Surg. Today
PUBLISHED: 02-12-2011
Show Abstract
Hide Abstract
We studied the risk factors for postoperative mortality between patients who underwent emergency or elective living-donor liver transplantation (LDLT).
Related JoVE Video
Severe outflow block syndrome caused by compression by the swollen caudate lobe after living donor liver transplantation: report of a case.
Surg. Today
PUBLISHED: 01-21-2011
Show Abstract
Hide Abstract
A 50-year-old man with primary biliary cirrhosis underwent living-donor liver transplantation (LDLT) using a graft of a left hemiliver with a left caudate lobe and duct-to-duct hepaticocholedochostomy. Postoperative bile leakage necessitated percutaneous drainage 22 days after LDLT. The patient presented to our hospital 205 days after the LDLT with abdominal distension and fever. Computed tomography showed ascites and a diffusely mottled pattern in the graft. The caudate lobe was swollen, and its bile ducts were dilated. The inferior vena cava was forced to the right by the swollen caudate lobe, and the root of the hepatic vein was stretched. The hepatic vein was not contrasted. Endoscopic retrograde cholangiography showed a biliary anastomotic stricture. Based on these findings, we diagnosed a severe outflow block of the hepatic vein and biliary anastomotic stricture. We performed balloon dilation of the biliary anastomosis and implanted a metallic stent in the hepatic vein. Thereafter, his clinical symptoms improved dramatically.
Related JoVE Video
Surgical outcomes of laparoscopy-assisted gastrectomy versus open gastrectomy for gastric cancer: a case-control study.
Surg Endosc
PUBLISHED: 01-21-2011
Show Abstract
Hide Abstract
The aim of this study was to clarify the technical feasibility and oncological efficacy of laparoscopy-assisted gastrectomy (LAG) for gastric cancer compared with open gastrectomy (OG).
Related JoVE Video

What is Visualize?

JoVE Visualize is a tool created to match the last 5 years of PubMed publications to methods in JoVE's video library.

How does it work?

We use abstracts found on PubMed and match them to JoVE videos to create a list of 10 to 30 related methods videos.

Video X seems to be unrelated to Abstract Y...

In developing our video relationships, we compare around 5 million PubMed articles to our library of over 4,500 methods videos. In some cases the language used in the PubMed abstracts makes matching that content to a JoVE video difficult. In other cases, there happens not to be any content in our video library that is relevant to the topic of a given abstract. In these cases, our algorithms are trying their best to display videos with relevant content, which can sometimes result in matched videos with only a slight relation.