Smoothened variants explain the majority of drug resistance in basal cell carcinoma.
Smoothened variants explain the majority of drug resistance in basal cell carcinoma.
复制标题
平滑的变体解释了基底细胞癌中大多数耐药性。
DOI:
10.1016/j.ccell.2015.02.002
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发表时间:
2015-03-09
期刊:
影响因子:
50.3
通讯作者:
Tang JY
中科院分区:
文献类型:
--
作者:
Atwood SX;Sarin KY;Whitson RJ;Li JR;Kim G;Rezaee M;Ally MS;Kim J;Yao C;Chang AL;Oro AE;Tang JY
Advanced basal cell carcinomas (BCCs) frequently acquire resistance to Smoothened (SMO) inhibitors through unknown mechanisms. Here, we identify SMO mutations in 50% (22/44) of resistant BCCs and show that these mutations maintain Hedgehog signaling in the presence of SMO inhibitors. Alterations include four ligand binding pocket mutations defining sites of inhibitor binding and four variants confering constitutive activity and inhibitor resistance, illuminating pivotal residues that ensure receptor autoinhibition. In the presence of a SMO inhibitor, tumor cells containing either class of SMO mutants effectively outcompete cells containing the wild type SMO. Finally, we show that both classes of SMO variants respond to aPKC-ι/λ or GLI2 inhibitors that operate downstream of SMO, setting the stage for the clinical use of GLI antagonists.
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影响因子:
64.8
作者:
通讯作者:
--
影响因子:
64.8
作者:
通讯作者:
--
影响因子:
11.5
作者:
Axelson, Michael;Liu, Ke;Pazdur, Richard
通讯作者:
Pazdur, Richard
影响因子:
14.9
作者:
Forbes SA;Bindal N;Bamford S;Cole C;Kok CY;Beare D;Jia M;Shepherd R;Leung K;Menzies A;Teague JW;Campbell PJ;Stratton MR;Futreal PA
通讯作者:
Futreal PA
影响因子:
48
作者:
Mortazavi, Ali;Williams, Brian A.;Wold, Barbara
通讯作者:
Wold, Barbara