title: Ras processing as a therapeutic target in hematologic malignancies.
abstract: Knowledge of signal transduction pathways has uncovered therapeutic targets for cancer. Based on genetic and biochemical studies of leukemia cells, inhibiting hyperactive Ras represents a rational therapeutic strategy for many hematologic malignancies. Because posttranslational processing by farnesyltransferase is essential for transformation by oncogenic Ras, specific inhibitors of this enzyme are being evaluated as cancer therapeutics. The authors review recent laboratory insights on farnesyltransferase biology and on the development of inhibitors, summarize preclinical and clinical data in myeloid malignancies, and briefly discuss other strategies of interfering with hyperactive Ras.
authors.affiliation: Department of Pediatrics and Comprehensive Cancer Center, University of California-San Francisco, San Francisco, California 94143-0519, USA.
authors.forename: Doan Thuy
authors.initials: DT
authors.lastname: Le
authors.forename: Kevin M
authors.initials: KM
authors.lastname: Shannon
mesh_terms: D019883:Alkyl and Aryl Transferases / Q000037:antagonists & inhibitors; D000818:Animals; D002986:Clinical Trials as Topic; D004353:Drug Evaluation, Preclinical; D004791:Enzyme Inhibitors / Q000494:pharmacology; D051231:Farnesyltranstransferase; D005544:Forecasting; D019337:Hematologic Neoplasms / Q000188:drug therapy*; D006801:Humans; D020935:MAP Kinase Signaling System / Q000502:physiology; D015398:Signal Transduction / Q000187:drug effects*; D018631:ras Proteins / Q000502:physiology*
chemical_list: D004791:Enzyme Inhibitors; D019883:Alkyl and Aryl Transferases; D051231:Farnesyltranstransferase; D018631:ras Proteins