PMID- 37316758 OWN - NLM STAT- MEDLINE DCOM- 20230811 LR - 20230811 IS - 1559-1182 (Electronic) IS - 0893-7648 (Linking) VI - 60 IP - 9 DP - 2023 Sep TI - The Temporal and Spatial Changes of Autophagy and PI3K Isoforms in Different Neural Cells After Hypoxia/Reoxygenation Injury. PG - 5366-5377 LID - 10.1007/s12035-023-03421-9 [doi] AB - There are limited therapeutic options for patient with traumatic spinal cord injury (SCI). Phosphoinositide 3-kinase family (PI3Ks) are the key molecules for regulating cell autophagy, which is a possible way of treating SCI. As we know, PI3K family are composed of eight isoforms, which are distributed into three classes. While the role of PI3Ks in regulating autophagy is controversial and the effects may be in a cell-specific manner. Different isoforms do not distribute in neural cells consistently and it is not clear how the PI3K isoforms regulate and interact with autophagy. Therefore, we explored the distributions and expression of different PI3K isoforms in two key neural cells (PC12 cells and astrocytes). The results showed that the expression of LC3II/I and p62, which are the markers of autophagy, changed in different patterns in PC12 cells and astrocytes after hypoxia/reoxygenation injury (H/R). Furthermore, the mRNA level of eight PI3K isoforms did not change in the same way, and even for the same isoform the mRNA activities are different between PC12 cells and astrocytes. What is more, the results of western blot of PI3K isoforms after H/R were inconsistent with the relevant mRNA. Based on this study, the therapeutic effects of regulating autophagy on SCI are not confirmed definitely, and its molecular mechanisms may be related with different temporal and spatial patterns of activation and distributions of PI3K isoforms. CI - (c) 2023. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature. FAU - Zhang, Duo AU - Zhang D AD - Department of Orthopedics, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China. FAU - Chen, Xuanyu AU - Chen X AD - Department of Orthopedics, Capital Medical University Electric Power Hospital, Beijing, 100073, China. FAU - Liu, Baoge AU - Liu B AUID- ORCID: 0000-0002-2156-0870 AD - Department of Orthopedics, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China. baogeliu@hotmail.com. FAU - Yuan, Yuan AU - Yuan Y AD - Department of Spinal Cord Injury Rehabilitation, China Rehabilitation Research Center, Beijing, 100068, China. FAU - Cui, Wei AU - Cui W AD - Department of Orthopedics, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China. FAU - Zhu, Di AU - Zhu D AD - Department of Orthopedics, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China. FAU - Zhu, Jichao AU - Zhu J AD - Department of Orthopedics, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China. FAU - Duan, Shuo AU - Duan S AD - Department of Orthopedics, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China. FAU - Li, Chenxi AU - Li C AD - Department of Orthopedics, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China. LA - eng GR - 2017000021469G215/Beijing Excellent Talent Training Funding/ GR - PYZ2017082/the Natural Science Foundation of Capital Medical University of China/ GR - PYZ2018081/the Natural Science Foundation of Capital Medical University of China/ GR - 2018YFF0301103/the National Key Research and Development Program of China/ PT - Journal Article DEP - 20230614 PL - United States TA - Mol Neurobiol JT - Molecular neurobiology JID - 8900963 RN - EC 2.7.1.- (Phosphatidylinositol 3-Kinases) RN - EC 2.7.1.137 (Phosphatidylinositol 3-Kinase) RN - 0 (RNA, Messenger) SB - IM MH - Rats MH - Animals MH - Humans MH - *Phosphatidylinositol 3-Kinases MH - *Autophagy MH - Hypoxia MH - Phosphatidylinositol 3-Kinase/metabolism MH - RNA, Messenger MH - Apoptosis OTO - NOTNLM OT - Astrocytes OT - Autophagy OT - Hypoxia/reoxygenation injury OT - PC12 cells OT - PI3K isoforms OT - Spinal cord injury EDAT- 2023/06/15 01:08 MHDA- 2023/08/11 06:43 CRDT- 2023/06/14 23:30 PHST- 2022/07/27 00:00 [received] PHST- 2023/06/02 00:00 [accepted] PHST- 2023/08/11 06:43 [medline] PHST- 2023/06/15 01:08 [pubmed] PHST- 2023/06/14 23:30 [entrez] AID - 10.1007/s12035-023-03421-9 [pii] AID - 10.1007/s12035-023-03421-9 [doi] PST - ppublish SO - Mol Neurobiol. 2023 Sep;60(9):5366-5377. doi: 10.1007/s12035-023-03421-9. Epub 2023 Jun 14.