PMID- 37163909 OWN - NLM STAT- MEDLINE DCOM- 20230605 LR - 20230606 IS - 1872-6844 (Electronic) IS - 0920-1211 (Linking) VI - 193 DP - 2023 Jul TI - Inhibition of mTORC2 improves brain injury in epileptic rats by promoting chaperone-mediated autophagy. PG - 107161 LID - S0920-1211(23)00086-4 [pii] LID - 10.1016/j.eplepsyres.2023.107161 [doi] AB - Epilepsy can seriously affect children's cognitive and behavioral development. The mechanistic target of rapamycin(mTOR) pathway plays an important role in neurodevelopment and epilepsy, but the mechanism of mechanistic target of rapamycin complex 2 (mTORC2) in epilepsy is still unclear. Here, we compared the similarities and differences of the mechanisms of action of mechanistic target of rapamycin complex 1 (mTORC1) and mTORC2 complex in the pathogenesis of epilepsy. Our research results show that the levels of apoptosis in cortical and hippocampal neurons were upregulated in epileptic rats (F = 32.15, 30.96; both P < 0.01), and epilepsy caused neuronal damage (F = 8.13, 9.43; both P < 0.01). The mTORC2-Akt pathway was activated in the cortex and hippocampus of epileptic rats. Inhibition of mTORC2 resulted in decreased levels of apoptosis and reduced neuronal damage in the cortex and hippocampus of epileptic rats. In the hippocampus, selective inhibition of mTORC2 increased lysosome-associated membrane protein 2 A (LAMP2A) protein expression compared with the control group, and the difference was statistically significant (F = 3.02, P < 0.05). Finally, we concluded that in the hippocampus, selective inhibition of mTORC2 can improve epileptic brain injury in rats by increasing chaperone-mediated autophagy (CMA) levels. CI - Copyright (c) 2023 Elsevier B.V. All rights reserved. FAU - Zhao, Yihan AU - Zhao Y AD - Department of Pediatrics, Peking University First Hospital, Beijing, China. FAU - Zhao, Wenying AU - Zhao W AD - Department of Pediatrics, Peking University First Hospital, Beijing, China. FAU - Han, Ying AU - Han Y AD - Department of Pediatrics, Peking University First Hospital, Beijing, China. Electronic address: hanying1568@bjmu.edu.cn. LA - eng PT - Journal Article DEP - 20230505 PL - Netherlands TA - Epilepsy Res JT - Epilepsy research JID - 8703089 RN - W36ZG6FT64 (Sirolimus) RN - EC 2.7.11.1 (Mechanistic Target of Rapamycin Complex 2) RN - EC 2.7.11.1 (Mechanistic Target of Rapamycin Complex 1) SB - IM MH - Rats MH - Animals MH - Sirolimus/pharmacology MH - Mechanistic Target of Rapamycin Complex 2/metabolism MH - *Chaperone-Mediated Autophagy MH - Mechanistic Target of Rapamycin Complex 1/metabolism MH - *Brain Injuries MH - *Epilepsy/drug therapy MH - Autophagy OTO - NOTNLM OT - Apoptosis OT - Autophagy OT - Epilepsy OT - Signaling pathway OT - mTOR EDAT- 2023/05/11 00:41 MHDA- 2023/06/05 06:42 CRDT- 2023/05/10 18:05 PHST- 2023/01/06 00:00 [received] PHST- 2023/03/22 00:00 [revised] PHST- 2023/05/01 00:00 [accepted] PHST- 2023/06/05 06:42 [medline] PHST- 2023/05/11 00:41 [pubmed] PHST- 2023/05/10 18:05 [entrez] AID - S0920-1211(23)00086-4 [pii] AID - 10.1016/j.eplepsyres.2023.107161 [doi] PST - ppublish SO - Epilepsy Res. 2023 Jul;193:107161. doi: 10.1016/j.eplepsyres.2023.107161. Epub 2023 May 5.