Gene, suicide: A gene whose expression in a cell is lethal for that cell.
Suicide genes form the basis of a strategy for making cancer cells more vulnerable, more sensitive to chemotherapy. The approach has been to attach parts of genes expressed in cancer cells to other genes for enzymes not found in mammals that can convert a harmless substance into one that is toxic to the tumor.
Most suicide genes mediate this sensitivity by coding for viral or bacterial enzymes that convert an inactive drug into toxic antimetabolites that inhibit the synthesis of nucleic acid. Suicide genes must be introduced into cells in ways that ensure their uptake and expression by as many cancer cells as possible, while limiting their expression by normal cells. Suicide gene therapy for cancer requires the vector to have the capacity to discriminate between target and nontarget cells, between the cancer cells and normal cells.
But increasingly, researchers are becoming convinced of an entirely different cause of suicide: a chemical imbalance in the brain.
Brief and Straightforward Guide: What Is a Suicide Gene? ... We would love to know what you think! Please let us know if you have any comments or questions about ...
Depression and bipolar disorder may be in your DNA â€”but is suicide? Several high-profile families have been plagued by the phenomenon. Casey Schwartz investigates ...
Suicidal behavior is a leading cause of death and disability in the United States. Suicide is influenced by a variety of factors, including psychological,
Suicide Gene therapy. Abstract Cancer is a genetic disease where the malignant cells contain somatic mutations in their growth and death associated genes.