PMID- 37331689 OWN - NLM STAT- MEDLINE DCOM- 20230816 LR - 20230817 IS - 1873-7544 (Electronic) IS - 0306-4522 (Linking) VI - 526 DP - 2023 Aug 21 TI - Hypoxic Postconditioning Promotes Angiogenesis After Ischemic Stroke. PG - 35-47 LID - S0306-4522(23)00265-8 [pii] LID - 10.1016/j.neuroscience.2023.06.009 [doi] AB - Although hypoxic postconditioning (HPC) has a protective effect on ischemic stroke, its effect on angiogenesis after ischemic stroke is still unclear. This study was designed to investigate the effects of HPC on angiogenesis after ischemic stroke and to preliminarily study the mechanism involved. Oxygen-glucose deprivation (OGD)-intervened bEnd.3 (mouse brain-derived Endothelial cell. 3) was used to simulate cerebral ischemia. Cell counting kit-8 (CCK-8), Cell BrdU proliferation, wound healing, Transwell and tube formation assays were used to evaluate the effect of HPC on the cell viability, proliferation, migration (horizontal and vertical migration), morphogenesis and tube formation of bEnd.3. A middle cerebral artery occlusion (MCAO) model was made in C57 mice to simulate focal cerebral ischemia. Rod rotation test, corner test, modified neurological severity score (mNSS), and balance beam walking test were used to evaluate the effect of HPC on the neurological impairment of mice. Immunofluorescence staining was used to evaluate the effect of HPC on angiogenesis in mice. The angiogenesis-related proteins were evaluated and quantified using western blot. Results showed that HPC significantly promoted proliferation, migration and tube formation of bEnd.3. HPC significantly reversed the neurological deficit of MCAO mice. Moreover, HPC significantly promoted angiogenesis in the peri-infarct area, and angiogenesis was found to be positively correlated with the improvement of neurological impairment. The HPC mice showed higher PLClambda and ALK5 than did MCAO. We conclude that HPC improves the neurological deficit caused by focal cerebral ischemia by promoting angiogenesis. Furthermore, the effect of HPC on improving angiogenesis may be related to PLClambda and ALK5. CI - Copyright (c) 2023 IBRO. Published by Elsevier Ltd. All rights reserved. FAU - Shi, Wenjie AU - Shi W AD - North China University of Science and Technology Affiliated Hospital, Tangshan 063000, China; Beijing Key Laboratory of Hypoxia Translational Medicine, Xuanwu Hospital, Capital Medical University, Beijing 100053, China. FAU - Ren, Changhong AU - Ren C AD - Beijing Key Laboratory of Hypoxia Translational Medicine, Xuanwu Hospital, Capital Medical University, Beijing 100053, China; Center of Stroke, Beijing Institute for Brain Disorder, Capital Medical University, Beijing 100053, China. FAU - Zhang, Wei AU - Zhang W AD - Beijing Key Laboratory of Hypoxia Translational Medicine, Xuanwu Hospital, Capital Medical University, Beijing 100053, China. FAU - Gao, Chen AU - Gao C AD - Beijing Key Laboratory of Hypoxia Translational Medicine, Xuanwu Hospital, Capital Medical University, Beijing 100053, China. FAU - Yu, Wantong AU - Yu W AD - Beijing Key Laboratory of Hypoxia Translational Medicine, Xuanwu Hospital, Capital Medical University, Beijing 100053, China. FAU - Ji, Xunming AU - Ji X AD - Beijing Key Laboratory of Hypoxia Translational Medicine, Xuanwu Hospital, Capital Medical University, Beijing 100053, China; Center of Stroke, Beijing Institute for Brain Disorder, Capital Medical University, Beijing 100053, China. FAU - Chang, Lisha AU - Chang L AD - North China University of Science and Technology Affiliated Hospital, Tangshan 063000, China. Electronic address: clsha1975@163.com. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20230616 PL - United States TA - Neuroscience JT - Neuroscience JID - 7605074 SB - IM MH - Mice MH - Animals MH - *Ischemic Stroke MH - *Brain Ischemia/metabolism MH - Infarction, Middle Cerebral Artery MH - Morphogenesis MH - *Stroke/metabolism MH - *Ischemic Postconditioning OTO - NOTNLM OT - angiogenesis OT - hypoxic postconditioning OT - ischemic stroke OT - neuroprotection EDAT- 2023/06/19 00:42 MHDA- 2023/08/16 06:43 CRDT- 2023/06/18 19:18 PHST- 2023/02/12 00:00 [received] PHST- 2023/06/08 00:00 [revised] PHST- 2023/06/12 00:00 [accepted] PHST- 2023/08/16 06:43 [medline] PHST- 2023/06/19 00:42 [pubmed] PHST- 2023/06/18 19:18 [entrez] AID - S0306-4522(23)00265-8 [pii] AID - 10.1016/j.neuroscience.2023.06.009 [doi] PST - ppublish SO - Neuroscience. 2023 Aug 21;526:35-47. doi: 10.1016/j.neuroscience.2023.06.009. Epub 2023 Jun 16.