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lüll Validating cancer drug targets through chemical genetics Burkard ME; Jallepalli PVBiochim Biophys Acta 2010[Dec]; 1806 (2): 251-7Targeted therapies for cancer promise to revolutionize treatment by specifically inactivating pathways needed for the growth of tumor cells. The most prominent example of such therapy is imatinib (Gleevec), which targets the BCR-ABL kinase and provides an effective low-toxicity treatment for chronic myelogenous leukemia. This success has spawned myriad efforts to develop similarly targeted drugs for other cancers. Unfortunately, the high expectations of these efforts have not yet been realized, likely due to the genetic diversity among and within tumors, as well as the complex and largely unpredictable interactions of drug-like compounds with innumerable targets that affect cellular and organismal metabolism. While improvements in sequencing technologies are beginning to address the first problem, solving the second problem requires methods for linking specific features of the cancer genome to their optimally targeted therapies. One approach, referred to as chemical genetics, accomplishes this by genetic control of chemical susceptibility. Chemical genetics is a crucial tool for the rational development of cancer drugs.|*Drug Discovery[MESH]|Animals[MESH]|Antineoplastic Agents/*pharmacology[MESH]|Drug Resistance, Neoplasm[MESH]|Genes, ras[MESH]|Humans[MESH]|Mutation[MESH]|Protein Kinase Inhibitors/pharmacology[MESH]|Signal Transduction[MESH] |