PMID- 34709593 OWN - NLM STAT- MEDLINE DCOM- 20220330 LR - 20230905 IS - 1476-3524 (Electronic) IS - 1029-8428 (Linking) VI - 39 IP - 6 DP - 2021 Dec TI - Opicapone Protects Against Hyperhomocysteinemia-Induced Increase in Blood-Brain Barrier Permeability. PG - 2018-2028 LID - 10.1007/s12640-021-00429-8 [doi] AB - Hyperhomocysteinemia (HHcy)-related brain vascular disorders and brain endothelial dysfunction are important characteristics of the pathogeneses of subarachnoid hemorrhage and stroke. Upregulated homocysteine (Hcy) can impair the integrity of the blood-brain barrier (BBB). Opicapone has been recently licensed for the management of Parkinson's disease (PD); however, it is unknown whether it possesses a protective effect in brain vessels against HHcy. To investigate the beneficial effects of Opicapone on BBB permeability against HHcy, we carried out both in vivo and in vitro experiments. Mice were allocated into four groups: the Control, Opicapone, HHcy, and HHcy + Opicapone. Interestingly, we found that the administration of Opicapone attenuated the increased BBB permeability in Hcy-treated mice, as determined by sodium fluorescein staining. The immunofluorescence staining showed that Opicapone prevented homocysteine-induced reduction of claudin-2 in the mice cortices. The in situ zymography assay revealed that Opicapone suppressed homocysteine-increased matrix metalloproteinases (MMPs) activity in the cortices. In bEnd.3 brain endothelial cells, Opicapone treatment ameliorated homocysteine-induced lactate dehydrogenase (LDH) release and expression of matrix metalloproteinase-2 (MMP-2) and matrix metalloproteinase-9 (MMP-9). Furthermore, Opicapone alleviated homocysteine-induced decrease in claudin-2 level in bEnd.3 cells. In summary, our results show that Opicapone protects against HHcy-induced BBB permeability by reducing the expression and gelatinase activity of MMPs, and increasing the expression of claudin-2. CI - (c) 2021. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature. FAU - Wang, Jian AU - Wang J AD - Department of Neurology, Ya'an Peoples Hospital, Ya'an, 625000, Sichuan, China. FAU - Zheng, Bo AU - Zheng B AD - Department of Neurology, Ya'an Peoples Hospital, Ya'an, 625000, Sichuan, China. FAU - Yang, Shu AU - Yang S AD - Department of Neurology, The Affiliated Hospital of University of Electronic Science and Technology, Sichuan Provincial People's Hospital, Chengdu, 610000, Sichuan, China. FAU - Zheng, Hui AU - Zheng H AD - Department of Neurology, Chengdu First People's Hospital, Chengdu, 610000, Sichuan, China. haoyun19882@163.com. FAU - Wang, Jianhong AU - Wang J AUID- ORCID: 0000-0001-6777-9299 AD - Department of Neurology, The Affiliated Hospital of University of Electronic Science and Technology, Sichuan Provincial People's Hospital, Chengdu, 610000, Sichuan, China. drwang_jh652@163.com. LA - eng GR - 2019ZYZF0063, 2020yj0497, and 2019yyjskf06/the science and technology ministry of sichuan province/ PT - Journal Article DEP - 20211028 PL - United States TA - Neurotox Res JT - Neurotoxicity research JID - 100929017 RN - 0 (Neuroprotective Agents) RN - 0 (Oxadiazoles) RN - Y5929UIJ5N (opicapone) SB - IM MH - Animals MH - Blood-Brain Barrier/*drug effects MH - Blotting, Western MH - Cell Membrane Permeability/drug effects MH - Enzyme-Linked Immunosorbent Assay MH - Hyperhomocysteinemia/*complications MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Neuroprotective Agents/pharmacology/*therapeutic use MH - Oxadiazoles/pharmacology/*therapeutic use MH - Real-Time Polymerase Chain Reaction OTO - NOTNLM OT - Blood-brain barrier OT - Hyperhomocysteinemia OT - MMP-9 OT - Opicapone EDAT- 2021/10/29 06:00 MHDA- 2022/03/31 06:00 CRDT- 2021/10/28 12:35 PHST- 2021/07/21 00:00 [received] PHST- 2021/10/06 00:00 [accepted] PHST- 2021/09/28 00:00 [revised] PHST- 2021/10/29 06:00 [pubmed] PHST- 2022/03/31 06:00 [medline] PHST- 2021/10/28 12:35 [entrez] AID - 10.1007/s12640-021-00429-8 [pii] AID - 10.1007/s12640-021-00429-8 [doi] PST - ppublish SO - Neurotox Res. 2021 Dec;39(6):2018-2028. doi: 10.1007/s12640-021-00429-8. Epub 2021 Oct 28.