mTORC2 protects the heart from high-fat diet-induced cardiomyopathy through mitochondrial fission in Drosophila.
mTORC2 protects the heart from high-fat diet-induced cardiomyopathy through mitochondrial fission in Drosophila.
复制标题
MTORC2通过果蝇的线粒体裂变保护心脏免受高脂饮食诱导的心肌病。
DOI:
10.3389/fcell.2022.866210
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发表时间:
2022
影响因子:
5.5
通讯作者:
中科院分区:
文献类型:
--
作者:
High-fat diet (HFD)-induced obesity has become the major risk factor for the development of cardiovascular diseases, but the underlying mechanisms remain poorly understood. Here, we use Drosophila as a model to study the role of mTORC2 in HFD-induced mitochondrial fission and cardiac dysfunction. We find that knockdown of mTORC2 subunit rictor blocks HFD-induced mitochondrial fragmentation and Drp1 recruitment. Knockdown of rictor further impairs cardiac contractile function under HFD treatment. Surprisingly, knockdown of Akt, the major effector of mTORC2, did not affect HFD-induced mitochondrial fission. Similar to mTORC2 inhibition, knockdown of Drp1 blocks HFD-induced mitochondrial fragmentation and induces contractile defects. Furthermore, overexpression of Drp1 restored HFD-induced mitochondrial fragmentation in rictor knockdown flies. Thus, we uncover a novel function of mTORC2 in protecting the heart from HFD treatment through Drp1-dependent mitochondrial fission.
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影响因子:
13.3
作者:
Chang K;Kang P;Liu Y;Huang K;Miao T;Sagona AP;Nezis IP;Bodmer R;Ocorr K;Bai H
通讯作者:
Bai H
影响因子:
8.8
作者:
Diop SB;Bisharat-Kernizan J;Birse RT;Oldham S;Ocorr K;Bodmer R
通讯作者:
Bodmer R
DOI:
10.1186/s13046-019-1201-4
发表时间:
2019-05-28
影响因子:
11.3
作者:
Hu, Jinjiao;Zhang, Yanhao;Gao, Ning
通讯作者:
Gao, Ning
影响因子:
29
作者:
Birse RT;Choi J;Reardon K;Rodriguez J;Graham S;Diop S;Ocorr K;Bodmer R;Oldham S
通讯作者:
Oldham S
影响因子:
21.3
作者:
Eisner V;Picard M;Hajnóczky G
通讯作者:
Hajnóczky G