Researchers at the University of California, San Diego and three other institutions have described for the first time a web of inter-related responses that cells use to avoid becoming diseased or cancerous after being exposed to a powerful chemical mutagen. The group led by UCSD bioengineering professor Trey Ideker describe in the May 19 issue of Science an elaborate system of gene control that was triggered by chemical damage to DNA. The information could be used eventually to develop drugs to boost DNA repair and possibly treat xeroderma pigmentosum, a disease in which the body’s ability to repair DNA damage caused by ultraviolet light is disabled, Werner syndrome, a premature aging disorder, as well as certain immune deficiencies and other degenerative diseases.
