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Chinese Journal of Clinical Pharmacology and Therapeutics ›› 2017, Vol. 22 ›› Issue (7): 831-840.

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Research on the inhibition of Treg cells on MMP-9 in rheumatoid arthritis with acute cerebral ischemia

SHEN Chen, LI Yunman, XIA Nian, XU Dan, HAN Dan, CHEN Shijie   

  1. School of Preclinical Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, Jiangsu, China
  • Received:2017-03-14 Revised:2017-06-01 Online:2017-07-26 Published:2017-07-19

Abstract:

Recent studies have found that patients with rheumatoid arthritis (RA) are more likely to suffer from acute cerebral ischemia and other cardiovascular diseases than healthy people. RA further aggravated the development of acute cerebral ischemia. Matrix metalloproteinase-9 (MMP-9) may degrade the extracellular matrix, the damage of blood-brain barrier, the infiltration of inflammatory cells and pro-inflammatory cytokine. MMP-9 helps to build the series-wound amplifiers of inflammatory cascade reaction after cerebral ischemia. Treg cells can inhibit MMP-9 activity through multiple pathways to control acute cerebral ischemia and alleviate the symptoms of RA. First, Treg cells inhibit the activity of MMP-9 by blocking NF-κB pathway; Second, Treg cells can inhibit MMP-9 by regulating the expression of TGF-β1 and TNF-α; Third, Treg cells transform the polarization type of microglia/macrophage activated by acute cerebral ischemia to prevent MMP-9's secretion and the reinforce the immune tolerance of M2 microglia/macrophages; Fourth, Treg cells release anti-inflammatory cytokines to antagonize Th17 cells, to regulate immune balance and to alleviate inflammation induced by RA with acute cerebral ischemia. This article reviewed the therapeutic effects of Treg cells in treating RA with acute cerebral ischemia by inhibiting the activity of MMP-9 in hope of providing a reference for the effective treatment and research of RA with acute cerebral ischemia.

Key words:  rheumatoid arthritis, acute cerebral ischemia, regulatory T cells, matrix metalloprotein-9

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