PMID- 33735723 OWN - NLM STAT- MEDLINE DCOM- 20210518 LR - 20210518 IS - 1618-095X (Electronic) IS - 0944-7113 (Linking) VI - 85 DP - 2021 May TI - Hydroxysafflor yellow A alleviates cerebral ischemia reperfusion injury by suppressing apoptosis via mitochondrial permeability transition pore. PG - 153532 LID - S0944-7113(21)00074-X [pii] LID - 10.1016/j.phymed.2021.153532 [doi] AB - BACKGROUND: Mitochondria are key cellular organelles that are essential for cell fate decisions. Hydroxysafflor yellow A (HSYA) has displayed an impressively essential role in protection of cerebral ischemia/reperfusion (I/R). However, the mitochondrial effect of HSYA on Brain Microvascular Endothelial Cells (BMECs) under I/R remains to be largely unclear. PURPOSE: To evaluate the protective effects of HSYA-mediated mitochondrial permeability transition pore (mPTP) on cerebral I/R injury and its mechanism. METHODS: Cerebral I/R injury was established by the model of Middle cerebral artery occlusion (MCAO) in rats. Furthermore, to further clarify the relevant mechanism of HSYA's effects on mPTP, inhibition of extracellular regulated protein kinases (ERK) with U0126 and transfect with Cyclophilin D (CypD) SiRNA to reversely verified whether the protective effects of HSYA were exerted by regulating the Mitogen-activated protein kinase kinase (MEK)/ERK/CypD pathway. RESULTS: HSYA treatment significantly increased BMECs viability, decreased the generation of ROS, opening of mPTP and translocation of cytochrome c after OGD/R. In addition to inhibited CypD, HSYA potentiated MEK and increased phosphorylation of ERK expression in BMECs, inhibited apoptosis mediated by mitochondrial. Notably, HSYA also significantly ameliorated neurological deficits and decreased the infarct volume in rats. CONCLUSION: HSYA reduced the CytC export from mitochondrial by inhibited the open of mPTP via MEK/ERK/CypD pathway, contributing to the protection of I/R. Thus, our study not only revealed novel mechanisms of HSYA for its anti-I/R function, but also provided a template for the design of novel mPTP inhibitor for the treatment of various mPTP-related diseases. CI - Copyright (c) 2021. Published by Elsevier GmbH. FAU - Huang, Ping AU - Huang P AD - Anhui Province Key Laboratory of Chinese Medicinal Formula, Anhui University of Chinese Medicine, Hefei 230012, China; Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Anhui University of Chinese Medicine, Hefei 230012, China. FAU - Wu, Si-Peng AU - Wu SP AD - Anhui Province Key Laboratory of Chinese Medicinal Formula, Anhui University of Chinese Medicine, Hefei 230012, China; State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen 361005, China. Electronic address: wsphefei@163.com. FAU - Wang, Ning AU - Wang N AD - Anhui Province Key Laboratory of Chinese Medicinal Formula, Anhui University of Chinese Medicine, Hefei 230012, China; Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Anhui University of Chinese Medicine, Hefei 230012, China. Electronic address: wnsci123@163.com. FAU - Seto, Saiwang AU - Seto S AD - Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China. FAU - Chang, Dennis AU - Chang D AD - National Institute of Complementary Medicine, Western Sydney University; Penrith, NSW 2751, Australia. LA - eng PT - Journal Article DEP - 20210228 PL - Germany TA - Phytomedicine JT - Phytomedicine : international journal of phytotherapy and phytopharmacology JID - 9438794 RN - 0 (Mitochondrial Permeability Transition Pore) RN - 0 (Quinones) RN - 146087-19-6 (hydroxysafflor yellow A) RN - 5S5A2Q39HX (Chalcone) SB - IM MH - Animals MH - Apoptosis/*drug effects MH - Brain Ischemia/drug therapy MH - Chalcone/*analogs & derivatives/pharmacology MH - Endothelial Cells/*drug effects/metabolism MH - MAP Kinase Signaling System MH - Male MH - Mitochondria/drug effects MH - *Mitochondrial Permeability Transition Pore MH - Phosphorylation MH - Quinones/*pharmacology MH - Rats MH - Rats, Sprague-Dawley MH - Reperfusion Injury/*drug therapy OTO - NOTNLM OT - Apoptosis, BMECs OT - Cerebral ischemia/reperfusion injury OT - HSYA OT - Mitochondrial permeability transition pore EDAT- 2021/03/19 06:00 MHDA- 2021/05/19 06:00 CRDT- 2021/03/18 20:17 PHST- 2020/12/18 00:00 [received] PHST- 2021/02/15 00:00 [revised] PHST- 2021/02/25 00:00 [accepted] PHST- 2021/03/19 06:00 [pubmed] PHST- 2021/05/19 06:00 [medline] PHST- 2021/03/18 20:17 [entrez] AID - S0944-7113(21)00074-X [pii] AID - 10.1016/j.phymed.2021.153532 [doi] PST - ppublish SO - Phytomedicine. 2021 May;85:153532. doi: 10.1016/j.phymed.2021.153532. Epub 2021 Feb 28.