GOLPH3 modulates mTOR signalling and rapamycin sensitivity in cancer.

GOLPH3 modulates mTOR signalling and rapamycin sensitivity in cancer.
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DOI:
10.1038/nature08109
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发表时间:
2009-06-25
期刊:
影响因子:
64.8
通讯作者:
Chin, Lynda
Chin, Lynda
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Scott, Kenneth L.;Kabbarah, Omar;Liang, Mei-Chih;Ivanova, Elena;Anagnostou, Valsamo;Wu, Joyce;Dhakal, Sabin;Wu, Min;Chen, Shujuan;Feinberg, Tamar;Huang, Joseph;Saci, Abdel;Widlund, Hans R.;Fisher, David E.;Xiao, Yonghong;Rimm, David L.;Protopopov, Alexei;Wong, Kwok-Kin;Chin, Lynda

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Genome-wide copy number analyses of human cancers identified a frequent 5p13 amplification in multiple solid tumor types, including lung (56%), ovarian (38%), breast (32%), prostate (37%) and melanoma (32%). Integrative analysis of the region identifies a Golgi protein, GOLPH3, as a candidate targeted for amplification. Gain- and loss-of-function studies in vitro and in vivo validated GOLPH3 as a potent oncogene. Physically, GOLPH3 localizes to the trans-Golgi network and interacts with components of the retromer complex, which in yeast has been linked to TOR signaling. Mechanistically, GOLPH3 regulates cell size, enhances growth factor-induced mTOR signaling in human cancer cells and alters response to mTOR inhibitor in vivo. Thus, reinforcing genomic and genetic, biological, functional and biochemical data in yeast and humans establish GOLPH3 as a novel oncogene that is commonly targeted for amplification in human cancer and capable of modulating the response to rapamycin, a cancer drug in clinical use.
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