Tenuigenin protects dopaminergic neurons from inflammation via suppressing NLRP3 inflammasome activation in microglia.
Tenuigenin protects dopaminergic neurons from inflammation via suppressing NLRP3 inflammasome activation in microglia.
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Tenuigenin通过抑制小胶质细胞中NLRP 3炎性体活化来保护多巴胺能神经元免受炎症。
DOI:
10.1186/s12974-017-1036-x
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发表时间:
2017-12-20
影响因子:
9.3
通讯作者:
Wang X
中科院分区:
文献类型:
--
作者:
Fan Z;Liang Z;Yang H;Pan Y;Zheng Y;Wang X
Emerging evidence indicates that nod-like receptor family, pyrin domain-containing 3 (NLRP3) inflammasome-induced inflammation plays a crucial role in the pathogenesis of Parkinson’s disease (PD). Thus, inhibition of NLRP3 inflammasome activation may offer a therapeutic benefit in the treatment of PD. Tenuigenin, a major active component of Polygala tenuifolia, has been shown to have potential anti-inflammatory activity, but the underlying mechanisms remain obscure. In the present study, the 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced mouse model of PD was established to explore the effect of tenuigenin on dopaminergic neurons in substantia nigra. We next activated NLRP3 inflammasome in both BV2 microglia cells and adult mice to investigate the mechanisms for the neuroprotective effect of tenuigenin. We demonstrated that treatment with tenuigenin increased striatal dopaminergic levels and improved motor impairment induced by MPTP. Also, tenuigenin significantly ameliorated the degeneration of dopaminergic neurons and inhibited NLRP3 inflammasome activation in substantia nigra of MPTP mouse model. We further found that tenuigenin reduced intracellular reactive oxygen species (ROS) production and suppressed NLRP3 inflammasome activation, subsequent caspase-1 cleavage, and interleukin-1β secretion in BV2 microglia cells. These data indicate that tenuigenin inhibits the activation of NLRP3 inflammasome via downregulating ROS. Correspondingly, in vivo data showed that tenuigenin attenuates microglia activation induced by lipopolysaccharide (LPS) in substantia nigra via suppressing NLRP3 inflammasome. Our findings reveal that tenuigenin protects dopaminergic neurons from inflammation partly through inhibition of NLRP3 inflammasome activation in microglia, and suggest the promising clinical use of tenuigenin for PD therapy.
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DOI:
10.1002/mds.27037
发表时间:
2017-07
期刊:
Movement disorders : official journal of the Movement Disorder Society
影响因子:
--
作者:
Collier TJ;Kanaan NM;Kordower JH
通讯作者:
Kordower JH
影响因子:
29.7
作者:
Davis BK;Wen H;Ting JP
通讯作者:
Ting JP
影响因子:
15.1
作者:
Zhou Y;Lu M;Du RH;Qiao C;Jiang CY;Zhang KZ;Ding JH;Hu G
通讯作者:
Hu G
影响因子:
30.5
作者:
通讯作者:
--
影响因子:
3.7
作者:
Gustin A;Kirchmeyer M;Koncina E;Felten P;Losciuto S;Heurtaux T;Tardivel A;Heuschling P;Dostert C
通讯作者:
Dostert C