lncRNA C2dat2 facilitates autophagy and apoptosis via the miR-30d-5p/DDIT4/mTOR axis in cerebral ischemia-reperfusion injury.
lncRNA C2dat2 facilitates autophagy and apoptosis via the miR-30d-5p/DDIT4/mTOR axis in cerebral ischemia-reperfusion injury.
复制标题
lncRNA C2dat2通过miR-30d-5p/DDIT4/mTOR轴促进脑缺血再灌注损伤中的自噬和凋亡
DOI:
10.18632/aging.202824
复制
发表时间:
2021-04-04
期刊:
影响因子:
--
通讯作者:
Kan Y
中科院分区:
文献类型:
--
作者:
Xu Q;Guohui M;Li D;Bai F;Fang J;Zhang G;Xing Y;Zhou J;Guo Y;Kan Y
Cerebral ischemia-reperfusion injury (CIRI) is an important pathophysiological process of ischemic stroke associated with various physiological and pathological processes, including autophagy and apoptosis. In this study, we examined the role and mechanism of long noncoding RNA CAMK2D-associated transcript 2 (C2dat2) in regulating CIRI in vivo and in vitro. C2dat2 up-regulation facilitated neuronal autophagy and apoptosis induced by CIRI. Mechanistically, C2dat2 acts as a competing endogenous RNA (ceRNA) to negatively regulate miR-30d-5p expression. More specifically, miR-30d-5p targeted the 3′-untranslated region of DNA damage-inducible transcript 4 (DDIT4) and silenced its target mRNA DDIT4. Additionally, C2dat2 binding with heat shock cognate 70/heat shock protein 90 blocked RNA-induced silencing complex assembly to abolish the miR-30d-5p targeting of DDIT4 and inhibited miR-30d-5p to silence its target mRNA DDIT4. Further analysis showed that C2dat2 knockdown conspicuously inhibited the up-regulation of DDIT4 and Beclin-1 levels and LC3B II/I ratio and the down-regulation of P62 and phosphorylated mammalian target of rapamycin (mTOR)/mTOR and phosphorylated-P70S6K/P70S6K ratio in Neuro-2a cells after oxygen-glucose deprivation/reoxygenation. This study first revealed that C2dat2/miR-30d-5p/DDIT4/mTOR forms a novel signaling pathway to facilitate autophagy and apoptosis induced by CIRI, contributing to the better understanding of the mechanisms of CIRI and enriching the ceRNA hypothesis in CIRI.
登录
查看更多内容
影响因子:
7.3
作者:
Nakanishi, Kotaro
通讯作者:
Nakanishi, Kotaro
影响因子:
6.1
作者:
Martinez B;Peplow PV
通讯作者:
Peplow PV
影响因子:
5.3
作者:
Liu, Hongying;Xu, Danping;Li, Hua
通讯作者:
Li, Hua
影响因子:
3
作者:
Bejot, Y.;Daubail, B.;Giroud, M.
通讯作者:
Giroud, M.
影响因子:
4.3
作者:
Gu D;Zou X;Ju G;Zhang G;Bao E;Zhu Y
通讯作者:
Zhu Y