Conformational control inhibition of the BCR-ABL1 tyrosine kinase, including the gatekeeper T315I mutant, by the switch-control inhibitor DCC-2036.

Conformational control inhibition of the BCR-ABL1 tyrosine kinase, including the gatekeeper T315I mutant, by the switch-control inhibitor DCC-2036.
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DOI:
10.1016/j.ccr.2011.03.003
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发表时间:
2011-04-12
期刊:
影响因子:
50.3
通讯作者:
Flynn DL
Flynn DL
中科院分区:
医学1区
文献类型:
--
作者:
Chan WW;Wise SC;Kaufman MD;Ahn YM;Ensinger CL;Haack T;Hood MM;Jones J;Lord JW;Lu WP;Miller D;Patt WC;Smith BD;Petillo PA;Rutkoski TJ;Telikepalli H;Vogeti L;Yao T;Chun L;Clark R;Evangelista P;Gavrilescu LC;Lazarides K;Zaleskas VM;Stewart LJ;Van Etten RA;Flynn DL

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Acquired resistance to ABL1 tyrosine kinase inhibitors (TKIs) through ABL1 kinase domain mutations, particularly the gatekeeper mutant T315I, is a significant problem for chronic myeloid leukemia (CML) patients. Using structure-based drug design, we developed compounds that bind to residues (Arg386/Glu282) ABL1 uses to switch between inactive and active conformations. The lead “switch-control” inhibitor, DCC-2036, potently inhibits both unphosphorylated and phosphorylated ABL1 by inducing a type II inactive conformation, and retains efficacy against the majority of clinically relevant CML resistance mutants, including T315I. DCC-2036 inhibits BCR-ABL1T315I-expressing cell lines, prolongs survival in mouse models of T315I-mutant CML and B-lymphoblastic leukemia, and inhibits primary patient leukemia cells expressing T315I in vitro and in vivo, supporting its clinical development in TKI-resistant Ph+ leukemia.
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