intrahepatic-cholangiolithiasis-extraction-during-endoscopic

Intrahepatic Cholangiolithiasis Extraction During Endoscopic Retrograde Cholangiopancreatography Using a Disposable Ultrafine Peroral Cholangioscope

Hepatolithiasis refers to the presence of stones in the branching bile ducts above the confluence of the left and right hepatic ducts, often accompanied ...

a-single-center-study-efficacy-safety-assessment-ercp-elderly

A Single Center Study of Efficacy and Safety Assessment of ERCP in Elderly Patients

Endoscopic retrograde cholangiopancreatography (ERCP) has emerged as a valuable minimally invasive therapeutic method for pancreatobiliary diseases and is ...

Shanghai Jiao Tong University School of Medicine

Colorectal cancer is one of the most common malignancies. Recent studies investigated that B7-H4 is highly expressed in various cancers. We aimed at exploring the effect of B7-H4 siRNA on proliferation, invasion, and migration of LOVO cells which expressed B7-H4 notably.

Role of B7-H4 siRNA in Proliferation, Migration, and Invasion of LOVO Colorectal Carcinoma Cell Line.

Perfluorooctanoic acid (PFOA) is widely used in consumer products and detected in human serum. Our study meant to elucidate the uncovered molecular mechanisms underlying the PFOA induced colorectal cancer cell DLD-1 invasion and matrix metalloproteinases (MMP) expression.

Perfluorooctanoic acid enhances colorectal cancer DLD-1 cells invasiveness through activating NF-κB mediated matrix metalloproteinase-2/-9 expression.

Ajuba is a multiple LIM domain-containing protein and functions as a transcriptional coregulator to modulate many gene expressions in various cellular processes. Here, we describe that the LIM domain of Ajuba interacts with Twist, and the Twist box is a pivotal motif for the interaction. Biologically, Ajuba enhances transcription of target gene N-cadherin as an obligate coactivator of Twist. The enhancement is achieved by binding to the E-box element within N-cadherin promoter as revealed by luciferase reporter and chromatin immunoprecipitation assays. Mechanistic investigation demonstrates that Ajuba recruits CBP and Twist to form a ternary complex at the Twist target promoter region and concomitantly enhances histone acetylation at these sites. These findings identify that Twist is a new interacting protein of Ajuba and Ajuba/Twist/CBP ternary complex may be a potential treatment strategy for Twist-related tumour metastasis.

Ajuba transactivates N-cadherin expression in colorectal cancer cells through interaction with Twist.

Breast cancer is the main lethal disease among females. The combination of lobaplatin and microwave hyperthermia plays a crucial role in several kinds of cancer in the clinic, but its possible mechanism in breast cancer has remained indistinct.

The anti-tumor effects of the combination of microwave hyperthermia and lobaplatin against breast cancer cells in vitro and in vivo.

Colorectal cancer (CRC) is the most common malignancy worldwide, and its underlying molecular mechanisms remain largely unexplored. Accumulating evidences indicate cancer-associated fibroblasts (CAFs), abundant stromal cell population in the tumor microenvironment, play a key role in tumor development. Herein, we have successfully isolated CAFs and paired normal fibroblasts (NFs) from colorectal cancer tissues (n=10). By using a multiplex cytokine profiling assay, we have identified IL-6 as a major cytokine released by CAFs. Co-culturing of CAFs with CRC cell lines HCT116 or SW480 increases IL-6 release, and the secretion by CAFs can be further enhanced under hypoxia. By using the CCK-8 assay, we have found that HCT116 or SW480 cells treated with culture medium from CAFs, IL-6, or hypoxia showed a significant cell growth compared to control cells (p<0.01). Mechanistically, we have found that hypoxia could enhance the effect of the IL-6/STAT3 signaling on CRC cells, in part, through HIF-1a targeting PKM2. In conclusion, our data clearly proposes the interconnected mechanisms for constitutive activation of STAT3 signal by CAFs-derived IL-6 under hypoxia in colorectal cancer. The pharmacological inhibition of STAT3, PKM2, or HIF-1α can significantly reduce the oncogenic effect of IL-6, providing a potential therapeutic target for CRC patients.

Hypoxia facilitates the proliferation of colorectal cancer cells by inducing cancer-associated fibroblast-derived IL6.

Accumulating data support that regular physical activity potentially inhibits chronic colitis, a risk factor for colitis-associated cancer (CAC). However, possible effects of physical activity on CAC and the underlying mechanisms remain poorly understood.

Swimming Impedes Intestinal Microbiota and Lipid Metabolites of Tumorigenesis in Colitis-Associated Cancer.

DLC1 (deleted in liver cancer-1) is downregulated or deleted in colorectal cancer (CRC) tissues and functions as a potent tumor suppressor, but the underlying molecular mechanism remains elusive. We found that the conditioned medium (CM) collected from DLC1-overexpressed SW1116 cells inhibited the migration of colon adenocarcinoma cells HCT116 and SW1116, but had no effect on proliferation, which suggested DLC1-mediated secretory components containing a specific inhibitor for colon adenocarcinoma cell migration. Analysis by mass spectrometry identified mesencephalic astrocyte-derived neurotrophic factor (MANF) as a candidate. More importantly, exogenous MANF significantly inhibited the migration of colon adenocarcinoma cells HCT116 and SW1116, but did not affect proliferation. Mechanistically, DLC1 reduced the retention of MANF in ER by competing the interaction between MANF and GRP78. Taken together, these data provided new insights into the suppressive effects of DLC1 on CRC, and revealed the potential of MANF in the treatment of CRC.

DLC1 inhibits colon adenocarcinoma cell migration by promoting secretion of the neurotrophic factor MANF.

Gallstone disease (GSD) is a major public health problem worldwide. The dietary inflammatory index (DII) and the energy-adjusted DII (E-DII) have been used to describe dietary inflammatory potential. The current study sought to investigate the pro-inflammatory role of diet on GSD among outpatients in the United States.

Association of pro-inflammatory diet with increased risk of gallstone disease: a cross-sectional study of NHANES January 2017-March 2020.

Automatic and precise polyp segmentation in colonoscopy images is highly valuable for diagnosis at an early stage and surgery of colorectal cancer. Nevertheless, it still posed a major challenge due to variations in the size and intricate morphological characteristics of polyps coupled with the indistinct demarcation between polyps and mucosas. To alleviate these challenges, we proposed an improved dual-aggregation polyp segmentation network, dubbed Dua-PSNet, for automatic and accurate full-size polyp prediction by combining both the transformer branch and a fully convolutional network (FCN) branch in a parallel style. Concretely, in the transformer branch, we adopted the B3 variant of pyramid vision transformer v2 (PVTv2-B3) as an image encoder for capturing multi-scale global features and modeling long-distant interdependencies between them whilst designing an innovative multi-stage feature aggregation decoder (MFAD) to highlight critical local feature details and effectively integrate them into global features. In the decoder, the adaptive feature aggregation (AFA) block was constructed for fusing high-level feature representations of different scales generated by the PVTv2-B3 encoder in a stepwise adaptive manner for refining global semantic information, while the ResidualBlock module was devised to mine detailed boundary cues disguised in low-level features. With the assistance of the selective global-to-local fusion head (SGLFH) module, the resulting boundary details were aggregated selectively with these global semantic features, strengthening these hierarchical features to cope with scale variations of polyps. The FCN branch embedded in the designed ResidualBlock module was used to encourage extraction of highly merged fine features to match the outputs of the Transformer branch into full-size segmentation maps. In this way, both branches were reciprocally influenced and complemented to enhance the discrimination capability of polyp features and enable a more accurate prediction of a full-size segmentation map. Extensive experiments on five challenging polyp segmentation benchmarks demonstrated that the proposed Dua-PSNet owned powerful learning and generalization ability and advanced the state-of-the-art segmentation performance among existing cutting-edge methods. These excellent results showed our Dua-PSNet had great potential to be a promising solution for practical polyp segmentation tasks in which wide variations of data typically occurred.

Improved dual-aggregation polyp segmentation network combining a pyramid vision transformer with a fully convolutional network.

WDR68, a conserved WD40 repeat-containing protein, interacts with E1A and is involved in the E1A-induced cell proliferation and oncogenic transformation, but the intrinsic molecular mechanisms of this process remain to be elucidated. Here, we demonstrate that WDR68 promotes the proliferation of 293T cells by interacting with a series of ribosome biogenesis-regulating proteins. Gene Set Enrichment Analysis (GSEA) of RNA-seq data also revealed that the ribosome biogenesis-associated gene signatures could be the most significantly enriched in the WDR68 expression groups. In accordance, 293T cells are more sensitive to the ribosome biogenesis inhibitors than 293 cells. Taken together, our results indicated that WDR68 could promote cell proliferation through the activation of ribosome biogenesis in the 293T cell context. This provides new insights into the understanding of the function of WDR68 and the molecular characterisation of 293T tool cells.

WDR68 stimulates cellular proliferation via activating ribosome biogenesis in 293T cells.

Intestinal perforations lead to a high risk of sepsis-associated morbidity and multi-organ dysfunctions. A perforation allows intestinal contents (IC) to enter the peritoneal cavity, causing abdominal infections. Right- and left-sided perforations have different prognoses in humans, but the mechanisms associated with different cecum and colon perforations remain unclear. This study investigates how gut flora influences outcomes from perforations at different sites in mice. Using fecal-induced peritonitis mouse model, isolated IC from the cecum or colon was injected peritoneally at 2 mg/kg. Bacterial burden was quantified with quantitative PCR, and microbial communities were analyzed using 16S rRNA gene sequencing. Survival rates were monitored, and blood biochemical indices, histological changes, cytokines expression, immunological signaling and multiple-organ damage were assessed at 16 h post-injections. The results showed cecum IC developed more severe sepsis than colon IC, with shorter median survival time and greater multi-organ damage. Mice treated with cecum IC displayed elevated tissue damage markers in the liver, heart, and kidneys, contributing to worsened pathology. This was likely driven by systematic inflammatory cytokines production and lung inflammation. Mechanistically, cecum IC triggered stronger cGAS-STING and TBK1-NF-κB signaling, promoting systemic inflammation compared to the colon IC. Moreover, bacterial analysis demonstrated that cecum IC carry a higher bacterial burden than colon IC and exhibit a different microbial community. A detailed microbiome comparison revealed an increased abundance of potentially pathogenic bacteria in the cecum IC. These findings suggest that the site of intestinal perforation influences sepsis severity, with the cecum being associated with a higher bacterial burden and a relatively increased abundance of potentially pathogenic bacteria compared to the colon. Our findings first compared the lethality associated with the microbial composition of the cecum and colon, indicating the perforation site could help providers predict the severity of sepsis, thereby introducing a novel perspective to microbiology and sepsis research.

Gut microbes of the cecum versus the colon drive more severe lethality and multi-organ damage.

Immune cell phenotypes have been implicated in the development and progression of esophageal cancer (EC), but their causal relationships remain unclear. This study aimed to explore the potential causal associations between immune cell traits and EC risk using Mendelian randomization (MR) analysis.

ArticleTotal : 2	Year
Publication title	2025
Publication title	2025

Article	Year
Role of B7-H4 siRNA in Proliferation, Migration, and Invasion of LOVO Colorectal Carcinoma Cell Line. BioMed research international\| PubMed ID: 26078947	2015
Perfluorooctanoic acid enhances colorectal cancer DLD-1 cells invasiveness through activating NF-κB mediated matrix metalloproteinase-2/-9 expression. International journal of clinical and experimental pathology\| PubMed ID: 26617761	2015
Ajuba transactivates N-cadherin expression in colorectal cancer cells through interaction with Twist. Journal of cellular and molecular medicine\| PubMed ID: 34173718	2021
The anti-tumor effects of the combination of microwave hyperthermia and lobaplatin against breast cancer cells in vitro and in vivo. Bioscience reports\| PubMed ID: 34282830	2022
Hypoxia facilitates the proliferation of colorectal cancer cells by inducing cancer-associated fibroblast-derived IL6. Neoplasma\| PubMed ID: 34374296	2021
Swimming Impedes Intestinal Microbiota and Lipid Metabolites of Tumorigenesis in Colitis-Associated Cancer. Frontiers in oncology\| PubMed ID: 35847876	2022
DLC1 inhibits colon adenocarcinoma cell migration by promoting secretion of the neurotrophic factor MANF. Frontiers in oncology\| PubMed ID: 36185184	2022
Association of pro-inflammatory diet with increased risk of gallstone disease: a cross-sectional study of NHANES January 2017-March 2020. Frontiers in nutrition\| PubMed ID: 38549748	2024
Improved dual-aggregation polyp segmentation network combining a pyramid vision transformer with a fully convolutional network. Biomedical optics express\| PubMed ID: 38633077	2024
WDR68 stimulates cellular proliferation via activating ribosome biogenesis in 293T cells. Neoplasia (New York, N.Y.)\| PubMed ID: 39067242	2024
Gut microbes of the cecum versus the colon drive more severe lethality and multi-organ damage. International immunopharmacology\| PubMed ID: 39793233	2025
The causal relationship between immune cell phenotypes and esophageal cancer development: a bidirectional Mendelian randomization study. Discover oncology\| PubMed ID: 40640426	2025

Yimin Chu

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