Tumor Survival Gene Study
Tumor Survival Gene Study - Related Videos
04:07
miniCoopR Vector-based Transgenesis: A Technique to Screen Melanoma-inducing Genes in Zebrafish Tumor Model
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2023
This video describes a method to screen for the melanoma modifying genes using a transgenic zebrafish tumor model. When injected with a melanoma-inducing miniCoopR vector, the zebrafish develops melanomas and can therefore be used to study the genetic factors affecting tumor development in zebrafish.
08:11
Measuring Growth and Gene Expression Dynamics of Tumor-Targeted S. Typhimurium Bacteria
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Cited by 21 •
2013
The goal of these experiments is to generate quantitative time-course data on the growth and gene expression dynamics of attenuated S. typhimurium bacterial colonies growing inside tumors. This video covers tumor cell preparation and implantation, bacteria preparation and injection, whole-animal luminescence imaging, tumor excision, and bacterial colony counting.
10:31
The Drosophila Imaginal Disc Tumor Model: Visualization and Quantification of Gene Expression and Tumor Invasiveness Using Genetic Mosaics
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Cited by 11 •
2016
This protocol demonstrates how to generate fluorescently marked, genetically defined clonal tumors in the Drosophila eye/antennal imaginal discs (EAD). It describes how to dissect the EAD and brain from the third instar larvae and how to process them to visualize and quantify gene expression changes and tumor invasiveness.
09:07
An Optic Nerve Crush Injury Murine Model to Study Retinal Ganglion Cell Survival
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Cited by 64 •
2011
This protocol shows how to retrogradely label retinal ganglion cells, and how to subsequently make an optic nerve crush injury in order to analyze retinal ganglion cell survival and apoptosis. It is an experimental disease model for different types of optic neuropathy, including glaucoma.
01:05
Cancer-Critical Genes II: Tumor Suppressor Genes
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2023
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype. When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors. Such genes that act...
FAQs
These genetic changes can alter the activity or amount of gene products that support proliferation or suppress apoptosis, a programmed form of cell death. Studying those changes helps connect a tumor genotype with the survival behavior of its cells, revealing which altered genes may be necessary for continued growth.
Proliferation-promoting signals push cells to divide, whereas apoptosis-suppressing signals help them avoid programmed death. A study of both sides of this balance can explain why a tumor persists and expands. It also helps researchers determine whether a candidate gene affects survival through growth control, death avoidance, or both.
A genetic dependency is a gene requirement that a tumor needs for continued growth, even though the same requirement may not apply equally to normal cells. Identifying such a difference is important because it links a tumor’s genotype to a selective vulnerability, helping distinguish broadly important survival biology from a more tumor-associated weakness.
Comparing tumor cells with normal cells provides a reference for interpreting altered genes and survival behavior. If a candidate change or expression pattern appears alongside tumor-specific dependence, researchers can better associate it with disease progression rather than ordinary cellular maintenance. This comparison strengthens the genetic interpretation of survival-related findings.
A basic study may begin by comparing tumor and normal cells, then examining candidate mutations, amplifications, or expression changes. Researchers can perturb candidate genes and observe consequences for cell viability, proliferation, or apoptosis. Combining genetic comparison with perturbation tests helps evaluate whether a gene is associated with survival or functionally required for it.
The resulting evidence can identify genes that tumors require to remain viable and clarify how those genes contribute to progression. It may also reveal biomarkers, which are measurable biological features associated with tumor behavior, and therapeutic targets. These outputs turn genetic observations into testable ways to classify tumors or guide treatment investigation.
In precision medicine, survival-gene findings help connect a tumor’s genotype with vulnerabilities to particular treatments. The goal is not simply to catalog altered genes, but to determine which genetic features indicate dependence on a survival pathway or sensitivity to intervention. This genotype-linked interpretation can support more individualized therapeutic decision-making.