The dual mTOR kinase inhibitor TAK228 inhibits tumorigenicity and enhances radiosensitization in diffuse intrinsic pontine glioma.
The dual mTOR kinase inhibitor TAK228 inhibits tumorigenicity and enhances radiosensitization in diffuse intrinsic pontine glioma.
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双MTOR激酶抑制剂TAK228抑制肿瘤性,并增强弥漫性内在蓬托胶质瘤中的放射敏化。
DOI:
10.1016/j.canlet.2017.04.019
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发表时间:
2017-08-01
期刊:
影响因子:
9.7
通讯作者:
Raabe EH
中科院分区:
文献类型:
--
作者:
Miyahara H;Yadavilli S;Natsumeda M;Rubens JA;Rodgers L;Kambhampati M;Taylor IC;Kaur H;Asnaghi L;Eberhart CG;Warren KE;Nazarian J;Raabe EH
Diffuse intrinsic pontine glioma (DIPG) is an invasive and treatment-refractory pediatric brain tumor. Primary DIPG tumors harbor a number of mutations including alterations in PTEN, AKTand PI3K and exhibit activation of mammalian Target of Rapamycin Complex 1 and 2 (mTORC1/2). mTORC1/2 regulate protein translation, cell growth, survival, invasion, and metabolism. Pharmacological inhibition of mTORC1 is minimally effective in DIPG. However, the activity of dual TORC kinase inhibitors has not been examined in this tumor type. Nanomolar levels of the mTORC1/2 inhibitor TAK228 reduced expression of p-AKTS473 and p-S6S240/244 and suppressed the growth of DIPG lines JHH-DIPG1, SF7761, and SU-DIPG-XIII. TAK228 induced apoptosis in DIPG cells and cooperated with radiation to further block proliferation and enhance apoptosis. TAK228 monotherapy inhibited the tumorigenicity of a murine orthotopic model of DIPG, more than doubling median survival (p=0.0017) versus vehicle. We conclude that dual mTOR inhibition is a promising potential candidate for DIPG treatment.
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影响因子:
9.7
作者:
Kaur, Harpreet;Ali, Sabeen Zulfiqar;Huey, Lauren;Hutt-Cabezas, Marianne;Taylor, Isabella;Mao, Xing-gang;Weingart, Melanie;Chu, Qian;Rodriguez, Fausto J.;Eberhart, Charles G.;Raabe, Eric H.
通讯作者:
Raabe, Eric H.
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通讯作者:
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影响因子:
3.2
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通讯作者:
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影响因子:
5.2
作者:
Kaur, Harpreet;Phillips-Mason, Polly J.;Brady-Kalnay, Susann M.
通讯作者:
Brady-Kalnay, Susann M.
影响因子:
12.7
作者:
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通讯作者:
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