PMID- 30680941 OWN - NLM STAT- MEDLINE DCOM- 20201009 LR - 20210109 IS - 1755-5949 (Electronic) IS - 1755-5930 (Print) IS - 1755-5930 (Linking) VI - 25 IP - 6 DP - 2019 Jun TI - Propofol improved hypoxia-impaired integrity of blood-brain barrier via modulating the expression and phosphorylation of zonula occludens-1. PG - 704-713 LID - 10.1111/cns.13101 [doi] AB - AIMS: Hypoxia may damage blood-brain barrier (BBB). The neuroprotective effect of propofol has been reported. We aimed to identify whether and how propofol improved hypoxia-induced impairment of BBB integrity. METHODS: Mouse brain microvascular endothelial cells (MBMECs) and astrocytes were cocultured to establish in vitro BBB model. The effects of hypoxia and propofol on BBB integrity were examined. Further, zonula occludens-1 (ZO-1) expression and phosphorylation, hypoxia-inducible factor-1alpha (HIF-1alpha) and vascular endothelial growth factor (VEGF) expression, intracellular calcium concentration and Ca(2+) /calmodulin-dependent protein kinase II (CAMKII) activation were measured. RESULTS: Hypoxia-impaired BBB integrity, which was protected by propofol. Hypoxia-reduced ZO-1 expression, while induced ZO-1 phosphorylation. These effects were attenuated by propofol. The expression of HIF-1alpha and VEGF was increased by hypoxia and was alleviated by propofol. The hypoxia-mediated suppression of ZO-1 and impaired BBB integrity was reversed by HIF-alpha inhibitor and VEGF inhibitor. In addition, hypoxia increased the intracellular calcium concentration and induced the phosphorylation of CAMKII, which were mitigated by propofol. The hypoxia-induced phosphorylation of ZO-1 and impaired BBB integrity was ameliorated by calcium chelator and CAMKII inhibitor. CONCLUSION: Propofol could protect against hypoxia-mediated impairment of BBB integrity. The underlying mechanisms may involve the expression and phosphorylation of ZO-1. CI - (c) 2019 The Authors. CNS Neuroscience & Therapeutics Published by John Wiley & Sons Ltd. FAU - Chen, Wei AU - Chen W AD - Department of Anesthesiology, Fudan University Shanghai Cancer Center, Shanghai, China. AD - Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China. FAU - Ju, Xing-Zhu AU - Ju XZ AD - Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China. AD - Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Shanghai, China. FAU - Lu, Yan AU - Lu Y AD - Department of Anesthesiology, Fudan University Shanghai Cancer Center, Shanghai, China. AD - Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China. FAU - Ding, Xiao-Wei AU - Ding XW AD - Department of Anesthesiology, Fudan University Shanghai Cancer Center, Shanghai, China. AD - Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China. FAU - Miao, Chang-Hong AU - Miao CH AD - Department of Anesthesiology, Fudan University Shanghai Cancer Center, Shanghai, China. AD - Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China. FAU - Chen, Jia-Wei AU - Chen JW AUID- ORCID: 0000-0003-3726-9823 AD - Department of Anesthesiology, Fudan University Shanghai Cancer Center, Shanghai, China. AD - Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20190124 PL - England TA - CNS Neurosci Ther JT - CNS neuroscience & therapeutics JID - 101473265 RN - 0 (Cardiovascular Agents) RN - 0 (Hif1a protein, mouse) RN - 0 (Hypoxia-Inducible Factor 1, alpha Subunit) RN - 0 (Tjp1 protein, mouse) RN - 0 (Vascular Endothelial Growth Factor A) RN - 0 (Zonula Occludens-1 Protein) RN - 0 (vascular endothelial growth factor A, mouse) RN - SY7Q814VUP (Calcium) RN - YI7VU623SF (Propofol) SB - IM MH - Animals MH - Astrocytes/drug effects/metabolism MH - Blood-Brain Barrier/*drug effects/metabolism MH - Calcium/metabolism MH - Cardiovascular Agents/*pharmacology MH - Cell Hypoxia/*drug effects/physiology MH - Cells, Cultured MH - Coculture Techniques MH - Endothelial Cells/drug effects/metabolism MH - Hypoxia-Inducible Factor 1, alpha Subunit/antagonists & inhibitors/metabolism MH - Mice MH - Microvessels/drug effects/metabolism MH - Phosphorylation/drug effects MH - Propofol/*pharmacology MH - Vascular Endothelial Growth Factor A/antagonists & inhibitors/metabolism MH - Zonula Occludens-1 Protein/*metabolism PMC - PMC6515893 OTO - NOTNLM OT - blood-brain barrier OT - hypoxia OT - mouse brain microvascular endothelial cells OT - propofol OT - zonula occludens-1 COIS- The authors declare no conflict of interest. EDAT- 2019/01/27 06:00 MHDA- 2020/10/10 06:00 PMCR- 2019/01/24 CRDT- 2019/01/26 06:00 PHST- 2018/10/31 00:00 [received] PHST- 2018/12/04 00:00 [revised] PHST- 2017/12/20 00:00 [accepted] PHST- 2019/01/27 06:00 [pubmed] PHST- 2020/10/10 06:00 [medline] PHST- 2019/01/26 06:00 [entrez] PHST- 2019/01/24 00:00 [pmc-release] AID - CNS13101 [pii] AID - 10.1111/cns.13101 [doi] PST - ppublish SO - CNS Neurosci Ther. 2019 Jun;25(6):704-713. doi: 10.1111/cns.13101. Epub 2019 Jan 24.