Long-term Tumor Analysis
Long-term Tumor Analysis - Related Videos
04:17
Long-term Orthotopic Transplantation of Tumor Cells into Zebrafish Embryos: An Efficient Method to Deliver Tumor Cells into the Fourth Ventricle of Zebrafish Embryos for Long-term Analysis of Tumor Cell Behavior
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2025
This video demonstrates the orthotopic transplantation of zebrafish brain tumor cells into the fourth ventricle of an immunocompetent zebrafish embryo. This procedure allows for the long-term study of tumor cell invasion and behavior.
09:43
Transplantation of Zebrafish Pediatric Brain Tumors into Immune-competent Hosts for Long-term Study of Tumor Cell Behavior and Drug Response
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Cited by 22 •
2017
The transplantation of cancer cells is an important tool for the identification of cancer mechanisms and therapeutic responses. Current techniques depend on immune-incompetent animals. Here, we describe a method to transplant zebrafish tumor cells into immune-competent embryos for the long-term analysis of tumor cell behavior and in vivo drug responses.
10:10
Long-term Culture of Human Breast Cancer Specimens and Their Analysis Using Optical Projection Tomography
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Cited by 11 •
2011
We have developed a collagen-based in vitro assay which promotes proliferation and invasion from samples of all breast cancer subtypes. Optical Projection Tomography, a three dimensional microscopy technique was utilised to visualise and quantify tumour expansion. This assay may be used to quantify drug response of individual tumour samples.
11:52
Analysis of Targeted Viral Protein Nanoparticles Delivered to HER2+ Tumors
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Cited by 1 •
2013
This article details the procedures for optical imaging analysis of the tumor-targeted nanoparticle, HerDox. In particular, detailed use of the multimode imaging device for detecting tumor targeting and assessing tumor penetration is described here.
11:09
Establishing Intracranial Brain Tumor Xenografts With Subsequent Analysis of Tumor Growth and Response to Therapy using Bioluminescence Imaging
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Cited by 104 •
2010
Luciferase-modified human brain tumor xenografts can be established intracranially in athymic mice, with subsequent monitoring of tumor growth and response to therapy using bioluminescence imaging. In combination with survival analysis, bioluminescence monitoring is an essential research tool for pre-clinical testing of therapies being considered for treating brain tumors.
FAQs
Repeated observations show whether tumor behavior changes during disease development or after intervention. By comparing cellular features and molecular profiles across time, researchers can identify populations that persist while other tumor components decline. This temporal perspective helps separate treatment-sensitive changes from emerging resistance and clarifies how tumor heterogeneity contributes to altered responses.
Tumors can contain multiple cell populations with different characteristics, and their proportions may change over time. A single measurement can therefore miss clinically important subpopulations or make a temporary shift appear representative of the whole tumor. Long-term analysis accounts for this evolving heterogeneity, producing a more accurate interpretation of growth, composition, and treatment response.
Durability requires observing the tumor across an extended period rather than relying on one measurement after treatment. Researchers compare successive changes in tumor size, cellular features, molecular profiles, and clinical measurements. A response that persists across follow-up observations provides stronger evidence of sustained control, whereas later progression or renewed changes may indicate only a temporary effect.
The approach integrates repeated imaging with clinical measurements and serial tissue or liquid biopsies. Imaging follows changes in tumor size, while tissue and liquid samples provide opportunities to examine cellular and molecular features. Combining these sources links visible tumor dynamics with biological changes, allowing researchers to interpret treatment response and progression using complementary evidence rather than one measurement alone.
Researchers establish repeated observation points and collect comparable information at each stage. The workflow can include imaging, clinical measurements, and serial tissue or liquid biopsies, followed by comparisons of tumor size, composition, cellular features, molecular profiles, and response. Tracking these variables over time reveals changing trajectories and supports interpretation of progression or intervention effects.
Long-term tumor analysis is useful when researchers need to understand how cancer develops, how tumors respond to intervention, or why resistant populations appear. It supports studies that distinguish transient responses from durable control and helps relate tumor dynamics to disease progression. These findings can also inform the development and evaluation of adaptive treatment strategies.