Co-occurring gain-of-function mutations in HER2 and HER3 modulate HER2/HER3 activation, oncogenesis, and HER2 inhibitor sensitivity.
Co-occurring gain-of-function mutations in HER2 and HER3 modulate HER2/HER3 activation, oncogenesis, and HER2 inhibitor sensitivity.
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HER2和HER3中共同存在的功能获得突变调节HER2/HER3的激活、肿瘤发生和HER2抑制剂的敏感性。
DOI:
10.1016/j.ccell.2021.06.001
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发表时间:
2021-08-09
期刊:
影响因子:
50.3
通讯作者:
Arteaga CL
中科院分区:
文献类型:
--
作者:
Hanker AB;Brown BP;Meiler J;Marín A;Jayanthan HS;Ye D;Lin CC;Akamatsu H;Lee KM;Chatterjee S;Sudhan DR;Servetto A;Brewer MR;Koch JP;Sheehan JH;He J;Lalani AS;Arteaga CL
Activating mutations in HER2 (ERBB2) drive the growth of a subset of breast and other cancers and tend to co-occur with HER3 (ERBB3) missense mutations. The HER2 tyrosine kinase inhibitor neratinib has shown clinical activity against HER2-mutant tumors. To characterize the role of HER3 mutations in HER2-mutant tumors, we integrate computational structural modeling with biochemical and cell biological analyses. Computational modeling predicts that the frequent HER3E928G kinase domain mutation enhances the affinity of HER2/HER3 and reduces binding of HER2 to its inhibitor neratinib. Co-expression of mutant HER2/HER3 enhances HER2/HER3 co-immunoprecipitation and ligand-independent activation of HER2/HER3 and PI3K/AKT, resulting in enhanced growth, invasiveness, and resistance to HER2-targeted therapies, which can be reversed by combined treatment with PI3Kα inhibitors. Our results provide a mechanistic rationale for the evolutionary selection of co-occurring HER2/HER3 mutations and the recent clinical observations that HER3 mutations are associated with a poor response to neratinib in HER2-mutant cancers. Hanker and Brown et al. demonstrate that co-occurring HER2 and HER3 mutations cooperatively activate HER2/HER3 and PI3K signaling in tumor cells, leading to enhanced growth, invasion, and resistance to HER2 inhibitors. HER2/HER3 double-mutant tumor models are sensitive to the combination of a HER2 TKI and a PI3Kα inhibitor.
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影响因子:
3.7
作者:
DeLuca S;Khar K;Meiler J
通讯作者:
Meiler J
影响因子:
4.8
作者:
Debnath, J;Muthuswamy, SK;Brugge, JS
通讯作者:
Brugge, JS
影响因子:
50.3
作者:
Agus, DB;Akita, RW;Sliwkowski, MX
通讯作者:
Sliwkowski, MX
DOI:
10.1158/1078-0432.ccr-18-1544
发表时间:
2019-01-01
期刊:
Clinical cancer research : an official journal of the American Association for Cancer Research
影响因子:
--
作者:
Croessmann S;Formisano L;Kinch LN;Gonzalez-Ericsson PI;Sudhan DR;Nagy RJ;Mathew A;Bernicker EH;Cristofanilli M;He J;Cutler RE Jr;Lalani AS;Miller VA;Lanman RB;Grishin NV;Arteaga CL
通讯作者:
Arteaga CL
影响因子:
28.2
作者:
Bose R;Kavuri SM;Searleman AC;Shen W;Shen D;Koboldt DC;Monsey J;Goel N;Aronson AB;Li S;Ma CX;Ding L;Mardis ER;Ellis MJ
通讯作者:
Ellis MJ