Increased Mobile Zinc Regulates Retinal Ganglion Cell Survival via Activating Mitochondrial OMA1 and Integrated Stress Response.
Increased Mobile Zinc Regulates Retinal Ganglion Cell Survival via Activating Mitochondrial OMA1 and Integrated Stress Response.
复制标题
增加移动锌通过激活线粒体 OMA1 和综合应激反应调节视网膜神经节细胞的存活
DOI:
10.3390/antiox11102001
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发表时间:
2022-10-10
期刊:
影响因子:
--
通讯作者:
中科院分区:
文献类型:
--
作者:
Retinal ganglion cells (RGCs), the projection neurons of the eye, are irreversibly lost once the optic nerve is injured, which is a critical mechanism of glaucoma. Mobile zinc (Zn2+) levels rapidly increase in retinal interneuron amacrine cells and Zn2+ is then transferred to RGCs via the Zn2+ transporter protein ZnT-3, triggering RGC loss in optic nerve injury. Zn2+ chelation and ZnT-3 deletion promote long-term RGC survival. However, the downstream signaling pathways of Zn2+ in RGCs remains unknown. Here, we show that increased levels of Zn2+ upregulate the expression and activity of mitochondrial zinc metallopeptidase OMA1 in the retina, leading to the cleavage of DELE1 and activation of cytosolic eIF2α kinase PKR, triggering the integrated stress response (ISR) in RGCs. Our study identified OMA1 and ISR as the downstream molecular mechanisms of retinal Zn2+ and potential targets for preventing the progression of Zn2+-associated neuronal damage.
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影响因子:
5.3
作者:
Dong W;Qi Z;Liang J;Shi W;Zhao Y;Luo Y;Ji X;Liu KJ
通讯作者:
Liu KJ
影响因子:
29
作者:
Civiletto G;Varanita T;Cerutti R;Gorletta T;Barbaro S;Marchet S;Lamperti C;Viscomi C;Scorrano L;Zeviani M
通讯作者:
Zeviani M
影响因子:
17.1
作者:
Acin-Perez, Rebeca;Victoria Lechuga-Vieco, Ana;Antonio Enriquez, Jose
通讯作者:
Antonio Enriquez, Jose
DOI:
10.1073/pnas.2023909118
发表时间:
2021-08-25
影响因子:
11.1
作者:
Deng, Huichao;Qiao, Xinhua;Wang, Xiangming
通讯作者:
Wang, Xiangming
影响因子:
9
作者:
Bugallo, Ricardo;Marlin, Elias;Aragon, Tomas
通讯作者:
Aragon, Tomas