Inhibition of Noncanonical Ca2+ Oscillation/Calcineurin/GSK-3 beta Pathway Contributes to Anti-Inflammatory Effect of Sigma-1 Receptor Activation
文献类型： 外文期刊
作者： Gao, Tianyu 1 ; Gao, Ce 1 ; Liu, Zhidong 2 ; Wang, Yun 1 ; Jia, Xiaoxia 1 ; Tian, Hao 3 ; Lu, Qian 1 ; Guo, Lin 1 ;
作者机构： 1.Xuzhou Med Univ, Jiangsu Key Lab New Drug Res & Clin Pharm, 209 Tongshan Rd, Xuzhou 221000, Jiangsu, Peoples R China
2.Xuzhou Med Univ, Dept Pharm, Affiliated Hosp, 99 West Huai Hai Rd, Xuzhou 221004, Jiangsu, Peoples R China
3.Yunnan Acad Agr Sci, Agroprod Proc Res Inst, 2238 Beijing Rd, Kunming 650000, Yunnan, Peoples R China
关键词： Sigma-1 receptor; Neuroinflammation; Ca2+ oscillation; Calcineurin; Glycogen synthase kinase-3 beta
期刊名称：NEUROCHEMICAL RESEARCH （ 影响因子：3.996； 五年影响因子：3.858 ）
ISSN： 0364-3190
年卷期：
页码：
收录情况： SCI
摘要： Further understanding the mechanism for microglia activation is necessary for developing novel anti-inflammatory strategies. Our previous study found that the activation of sigma-1 receptor can effectively inhibit the neuroinflammation, independent of the canonical mechanisms, such as NF-kappa B, JNK and ERK inflammatory pathways. Thus, it is reasonable that an un-identified, non-canonical pathway contributes to the activation of microglia. In the present study, we found that a sigma-1 receptor agonist of 2-morpholin-4-ylethyl 1-phenylcyclohexane-1-carboxylate (PRE-084) suppressed lipopolysaccharide (LPS) elevated nitric oxide (NO) content in BV-2 microglia culture supernatant and LPS-raised mRNA levels of tumor necrosis factor-alpha (TNF-alpha), interleukin-1 beta (IL-1 beta), inducible nitric oxide synthase (iNOS) in BV-2 microglia. Moreover, PRE-084 alleviated LPS-increased Ser 9 de-phosphorylation of glycogen synthase kinase-3 beta (GSK-3 beta), LPS-elevated catalytic activity of calcineurin, and LPS-raised percent and frequency of Ca2+ oscillatory BV-2 cells. We further found that the inhibitory effect of PRE-084 was reversed by a calcineurin activator of chlorogenic acid and a GSK-3 beta activator of pyrvinium. Moreover, an IP3 receptor inhibitor of 2-aminoethoxydiphenyl borate mimicked the anti-inflammatory activity of PRE-084. Thus, we identified a noncanonical pro-neuroinflammary pathway of Ca2+ oscillation/Calcineurin/GSK-3 beta and the inhibition of this pathway is necessary for the anti-inflammatory activity of sigma-1 receptor activation.
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