BCAT1 decreases the sensitivity of cancer cells to cisplatin by regulating mTOR-mediated autophagy via branched-chain amino acid metabolism.
BCAT1 decreases the sensitivity of cancer cells to cisplatin by regulating mTOR-mediated autophagy via branched-chain amino acid metabolism.
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BCAT1 通过支链氨基酸代谢调节 mTOR 介导的自噬,从而降低癌细胞对顺铂的敏感性。
DOI:
10.1038/s41419-021-03456-7
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发表时间:
2021-02-10
影响因子:
9
通讯作者:
Zheng Y
中科院分区:
文献类型:
--
作者:
Luo L;Sun W;Zhu W;Li S;Zhang W;Xu X;Fang D;Grahn THM;Jiang L;Zheng Y
Cisplatin is one of the most effective chemotherapy drugs and is widely used in the treatment of cancer, including hepatocellular carcinoma (HCC) and cervical cancer, but its therapeutic benefit is limited by the development of resistance. Our previous studies demonstrated that BCAT1 promoted cell proliferation and decreased cisplatin sensitivity in HCC cells. However, the exact role and mechanism of how BCAT1 is involved in cisplatin cytotoxicity remain undefined. In this study, we revealed that cisplatin triggered autophagy in cancer cells, with an increase in BCAT1 expression. The cisplatin-induced up-regulation of BCAT1 decreased the cisplatin sensitivity by regulating autophagy through the mTOR signaling pathway. In addition, branched-chain amino acids or leucine treatment inhibited cisplatin- or BCAT1-mediated autophagy and increased cisplatin sensitivity by activating mTOR signaling in cancer cells. Moreover, inhibition of autophagy by chloroquine increased cisplatin sensitivity in vivo. Also, the knockdown of BCAT1 or the administration of leucine activated mTOR signaling, inhibited autophagy, and increased cisplatin sensitivity in cancer cells in vivo. These findings demonstrate a new mechanism, revealing that BCAT1 decreases cisplatin sensitivity in cancer cells by inducing mTOR-mediated autophagy via branched-chain amino acid leucine metabolism, providing an attractive pharmacological target to improve the effectiveness of chemotherapy.
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影响因子:
56.9
作者:
Fang, YM;Vilella-Bach, M;Chen, J
通讯作者:
Chen, J
DOI:
10.1007/978-981-15-0602-4_3
发表时间:
2019-01-01
期刊:
AUTOPHAGY: BIOLOGY AND DISEASES: BASIC SCIENCE
影响因子:
--
作者:
Wang, Ying;Zhang, Hongbing
通讯作者:
Zhang, Hongbing
影响因子:
9.7
作者:
Yu, Le;Gu, Chunping;Liu, Shuwen
通讯作者:
Liu, Shuwen
影响因子:
9.3
作者:
Ananieva, Elitsa A.;Powell, Jonathan D.;Hutson, Susan M.
通讯作者:
Hutson, Susan M.
影响因子:
9
作者:
Sui, X.;Chen, R.;Wang, Z.;Huang, Z.;Kong, N.;Zhang, M.;Han, W.;Lou, F.;Yang, J.;Zhang, Q.;Wang, X.;He, C.;Pan, H.
通讯作者:
Pan, H.