The structure-function relationship of oncogenic LMTK3.
The structure-function relationship of oncogenic LMTK3.
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DOI:
10.1126/sciadv.abc3099
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发表时间:
2020-11
期刊:
影响因子:
13.6
通讯作者:
Giamas G
中科院分区:
文献类型:
--
作者:
Ditsiou A;Cilibrasi C;Simigdala N;Papakyriakou A;Milton-Harris L;Vella V;Nettleship JE;Lo JH;Soni S;Smbatyan G;Ntavelou P;Gagliano T;Iachini MC;Khurshid S;Simon T;Zhou L;Hassell-Hart S;Carter P;Pearl LH;Owen RL;Owens RJ;Roe SM;Chayen NE;Lenz HJ;Spencer J;Prodromou C;Klinakis A;Stebbing J;Giamas G
The structure of oncogenic LMTK3 determines its role and functions allowing drug inhibition as a new therapeutic strategy. Elucidating signaling driven by lemur tyrosine kinase 3 (LMTK3) could help drug development. Here, we solve the crystal structure of LMTK3 kinase domain to 2.1Å resolution, determine its consensus motif and phosphoproteome, unveiling in vitro and in vivo LMTK3 substrates. Via high-throughput homogeneous time-resolved fluorescence screen coupled with biochemical, cellular, and biophysical assays, we identify a potent LMTK3 small-molecule inhibitor (C28). Functional and mechanistic studies reveal LMTK3 is a heat shock protein 90 (HSP90) client protein, requiring HSP90 for folding and stability, while C28 promotes proteasome-mediated degradation of LMTK3. Pharmacologic inhibition of LMTK3 decreases proliferation of cancer cell lines in the NCI-60 panel, with a concomitant increase in apoptosis in breast cancer cells, recapitulating effects of LMTK3 gene silencing. Furthermore, LMTK3 inhibition reduces growth of xenograft and transgenic breast cancer mouse models without displaying systemic toxicity at effective doses. Our data reinforce LMTK3 as a druggable target for cancer therapy.
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影响因子:
16.6
作者:
Gundry C;Marco S;Rainero E;Miller B;Dornier E;Mitchell L;Caswell PT;Campbell AD;Hogeweg A;Sansom OJ;Morton JP;Norman JC
通讯作者:
Norman JC
影响因子:
8.8
作者:
Li Z;Zhou L;Prodromou C;Savic V;Pearl LH
通讯作者:
Pearl LH
影响因子:
3.8
作者:
Karkoulis, Panagiotis K.;Stravopodis, Dimitrios J.;Voutsinas, Gerassimos E.
通讯作者:
Voutsinas, Gerassimos E.
影响因子:
11.4
作者:
Hubbard, SR
通讯作者:
Hubbard, SR
DOI:
10.1107/s0907444909052925
发表时间:
2010-02
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
作者:
Adams PD;Afonine PV;Bunkóczi G;Chen VB;Davis IW;Echols N;Headd JJ;Hung LW;Kapral GJ;Grosse-Kunstleve RW;McCoy AJ;Moriarty NW;Oeffner R;Read RJ;Richardson DC;Richardson JS;Terwilliger TC;Zwart PH
通讯作者:
Zwart PH