Radiosensitive Genes
Radiosensitive Genes - Related Videos
08:32
Genome-Wide CRISPR Screen for Unveiling Radiosensitive and Radioresistant Genes
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2025
A meticulous and structured approach is given to select resistant and sensitive genes of radiation through the application of a genome-wide CRISPR/Cas9 screen method. This protocol also has the potential to serve as a versatile framework for other research endeavors investigating the mechanisms of resistance to clinically administered chemical drugs.
04:53
Zebrafish Larvae as a Model to Evaluate Potential Radiosensitizers or Protectors
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2022
The zebrafish has recently been exploited as a model to validate potential radiation modifiers. The present protocol describes the detailed steps to use zebrafish embryos for radiation-based screening experiments and some observational approaches to evaluate the effect of different treatments and radiation.
00:09
Radiosensitivity of Cancer Stem Cells in Lung Cancer Cell Lines
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2019
The presence of cancer stem cells have been associated with relapse or poor outcomes after radiotherapy. This manuscript describes the methods to study the radiosensitivity of cancer stem cells in lung cancer cell lines.
05:39
Live Imaging to Quantify Cellular Radiosensitivity in Patient-Derived Tumor Organoids
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Cited by 1 •
2024
Here, we detail a straightforward live imaging approach for quantifying the sensitivity of patient-derived tumor organoids to ionizing radiation.
12:55
Using the Gene Pulser MXcell Electroporation System to Transfect Primary Cells with High Efficiency
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Cited by 11 •
2010
This procedure shows how to use the Gene Pulser MXcell electroporation system to rapidly and easily identify the best electroporation conditions for mouse embryonic fibroblasts (MEFs) or other primary cells. Considerations for troubleshooting are also discussed in the associated video.
FAQs
After ionizing radiation damages DNA, radiosensitive genes can influence a coordinated response involving DNA repair, cell-cycle checkpoints, apoptosis, and other stress responses. These processes determine whether damaged cells pause, repair injury, or undergo programmed death. Mapping this sequence helps explain why tumors with different gene activity can show different radiation sensitivity.
Genetic variation can alter the activity of response pathways, shifting cellular survival after treatment. A change that weakens damage control or repair may contribute to resistance, whereas a change that strengthens injury responses may increase sensitivity. Comparing gene status with treatment outcomes therefore helps researchers distinguish biological sources of reduced tumor response.
Because radiation response is governed by several linked processes, focusing only on DNA repair can miss effects from checkpoint control, apoptosis, or broader stress signaling. Examining these interacting functions gives a more complete view of how cancer cells tolerate treatment and where combination therapies might improve tumor control while limiting healthy-tissue injury.
Researchers can relate gene activity or variation to cellular survival after irradiation, then compare those patterns with tumor treatment response. This approach supports biomarker discovery, because a measurable genetic feature may help predict which tumors respond poorly or favorably. It also helps connect resistance patterns to underlying signaling changes.
In individualized radiotherapy research, radiosensitive genes may help associate a tumor’s molecular response pattern with the expected effect of radiation. Such information can support more individualized radiation schedules by highlighting likely sensitivity or resistance. The goal is not simply to classify tumors, but to improve tumor control while reducing avoidable injury to healthy tissue.
Genes linked to DNA repair, checkpoints, apoptosis, or stress responses can point to pathways that influence radiation survival. Researchers may use those links to identify targets for combination therapies used with radiation. The intended outcome is to weaken tumor resistance or enhance tumor control without proportionally increasing damage to healthy tissue.