RT Journal Article SR Electronic T1 Genome-wide cDNA Microarray Screening to Correlate Gene Expression Profiles with Sensitivity of 85 Human Cancer Xenografts to Anticancer Drugs JF Cancer Research JO Cancer Res FD American Association for Cancer Research SP 518 OP 527 VO 62 IS 2 A1 Zembutsu, Hitoshi A1 Ohnishi, Yasuyuki A1 Tsunoda, Tatsuhiko A1 Furukawa, Yoichi A1 Katagiri, Toyomasa A1 Ueyama, Yoshito A1 Tamaoki, Norikazu A1 Nomura, Tatsuji A1 Kitahara, Osamu A1 Yanagawa, Rempei A1 Hirata, Koichi A1 Nakamura, Yusuke YR 2002 UL http://cancerres.aacrjournals.org/content/62/2/518.abstract AB One of the most critical issues to be solved in regard to cancer chemotherapy is the need to establish a method for predicting efficacy or toxicity of anticancer drugs for individual patients. To identify genes that might be associated with chemosensitivity, we used a cDNA microarray representing 23,040 genes to analyze expression profiles in a panel of 85 cancer xenografts derived from nine human organs. The xenografts, implanted into nude mice, were examined for sensitivity to nine anticancer drugs (5-fluorouracil, 3-[(4-amino-2-methyl-5-pyrimidinyl)methyl]-1-(2-chloroethyl)-1-nitrosourea hydrochloride, adriamycin, cyclophosphamide, cisplatin, mitomycin C, methotrexate, vincristine, and vinblastine). Comparison of the gene expression profiles of the tumors with sensitivities to each drug identified 1,578 genes whose expression levels correlated significantly with chemosensitivity; 333 of those genes showed significant correlation with two or more drugs, and 32 correlated with six or seven drugs. These data should contribute useful information for identifying predictive markers for drug sensitivity that may eventually provide “personalized chemotherapy” for individual patients, as well as for development of novel drugs to overcome acquired resistance of tumor cells to chemical agents. ©2002 American Association for Cancer Research.