PMID- 29886251 OWN - NLM STAT- MEDLINE DCOM- 20190927 LR - 20191210 IS - 1872-6240 (Electronic) IS - 0006-8993 (Linking) VI - 1697 DP - 2018 Oct 15 TI - A cannabinoid receptor 2 agonist reduces blood-brain barrier damage via induction of MKP-1 after intracerebral hemorrhage in rats. PG - 113-123 LID - S0006-8993(18)30333-0 [pii] LID - 10.1016/j.brainres.2018.06.006 [doi] AB - BACKGROUND AND PURPOSE: The blood-brain barrier (BBB) disruption and the following development of brain edema, is the most life-threatening secondary injury after intracerebral hemorrhage (ICH). This study is to investigate a potential role and mechanism of JWH133, a selected cannabinoid receptor type2 (CB2R) agonist, on protecting blood-brain barrier integrity after ICH. METHODS: 192 adult male Sprague-Dawley (SD) rats were randomly divided into Sham; ICH + Vehicle; ICH + JWH 1.0 mg/kg, ICH + JWH 1.5 mg/kg and ICH + JWH 2.0 mg/kg; ICH + SR + JWH respectively. Animals were euthanized at 24 h following western blots and immunofluorescence staining, we also examined the effect of JWH133 on the brain water contents, neurobehavioral deficits and blood brain barrier (BBB) permeability, meanwhile reassessed the inflammatory cytokines concentrations around the hematoma by enzyme-linked immunosorbent assay (ELISA) in each group. RESULTS: JWH133 (1.5 mg/kg) administration ameliorated brain edema, neurological deficits and blood-brain barrier damage, as well as microglia activation. The expression of pro-inflammatory mediators interleukin 1beta (IL-1beta), interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-alpha) and matrix metallopeptidase-2/9 (MMP2/9) were attenuated, but not monocyte chemoattractant protein-1 (MCP-1). Additionally, decreases in zonula occludens-1 (ZO-1) and claudin-5 expression were partially recovered by JWH133. Furthermore, JWH133 upregulated the expression level of MKP-1, which leads to the inhibition of MAPKs signaling pathway activation, especially for ERK and P38. However, these effects were reversed by pretreatment with a selective CB2R antagonist, SR144528. CONCLUSIONS: CB2R agonist alleviated neuroinflammation and protected blood-brain barrier permeability in a rat ICH model. Further molecular mechanisms revealed which is probably mediated by enhancing the expression of MKP-1, then inhibited MAPKs signal transduction. CI - Copyright (c) 2018. Published by Elsevier B.V. FAU - Li, Lin AU - Li L AD - Department of Neurosurgery, Nanchong Central Hospital, Nanchong 637000, China. FAU - Yun, Debo AU - Yun D AD - Department of Neurosurgery, Nanchong Central Hospital, Nanchong 637000, China. FAU - Zhang, Yuan AU - Zhang Y AD - Department of Neurosurgery, Nanchong Central Hospital, Nanchong 637000, China. FAU - Tao, Yihao AU - Tao Y AD - Department of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing 400038, China. FAU - Tan, Qiang AU - Tan Q AD - Department of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing 400038, China. FAU - Qiao, Fei AU - Qiao F AD - Department of Neurosurgery, Nanchong Central Hospital, Nanchong 637000, China. FAU - Luo, Bo AU - Luo B AD - Department of Neurosurgery, Nanchong Central Hospital, Nanchong 637000, China. FAU - Liu, Yi AU - Liu Y AD - Department of Neurosurgery, Nanchong Central Hospital, Nanchong 637000, China. FAU - Fan, Runjin AU - Fan R AD - Department of Neurosurgery, Nanchong Central Hospital, Nanchong 637000, China. FAU - Xian, Jishu AU - Xian J AD - Department of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing 400038, China. Electronic address: lilin025683@sina.com. FAU - Yu, Anyong AU - Yu A AD - Department of Emergency, The First Affiliated Hospital of Zunyi Medical College, Guizhou 563003, China. Electronic address: anyongyu@163.com. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20180607 PL - Netherlands TA - Brain Res JT - Brain research JID - 0045503 RN - 0 (Camphanes) RN - 0 (Cannabinoids) RN - 0 (Cnr2 protein, rat) RN - 0 (Cytokines) RN - 0 (Pyrazoles) RN - 0 (Receptor, Cannabinoid, CB2) RN - 0 (SR 144528) RN - EC 3.1.3.48 (Dual Specificity Phosphatase 1) RN - EC 3.1.3.48 (Dusp1 protein, rat) RN - TDG8048RDA (1,1-dimethylbutyl-1-deoxy-Delta(9)-THC) SB - IM MH - Animals MH - Biological Transport MH - Blood-Brain Barrier/drug effects MH - Brain/metabolism/pathology MH - Brain Edema/drug therapy/*pathology MH - Camphanes/pharmacology MH - Cannabinoids/*metabolism/pharmacology MH - Cerebral Hemorrhage/pathology MH - Cytokines/metabolism MH - Disease Models, Animal MH - Dual Specificity Phosphatase 1/metabolism/physiology MH - Male MH - Permeability MH - Pyrazoles/pharmacology MH - Rats MH - Rats, Sprague-Dawley MH - Receptor, Cannabinoid, CB2/agonists/*metabolism MH - Signal Transduction/drug effects OTO - NOTNLM OT - Blood-brain barrier OT - Cannabinoid receptor type 2 OT - Intracerebral hemorrhage OT - MKP-1 OT - Neuroinflammation EDAT- 2018/06/11 06:00 MHDA- 2019/09/29 06:00 CRDT- 2018/06/11 06:00 PHST- 2018/02/01 00:00 [received] PHST- 2018/05/30 00:00 [revised] PHST- 2018/06/05 00:00 [accepted] PHST- 2018/06/11 06:00 [pubmed] PHST- 2019/09/29 06:00 [medline] PHST- 2018/06/11 06:00 [entrez] AID - S0006-8993(18)30333-0 [pii] AID - 10.1016/j.brainres.2018.06.006 [doi] PST - ppublish SO - Brain Res. 2018 Oct 15;1697:113-123. doi: 10.1016/j.brainres.2018.06.006. Epub 2018 Jun 7.