NDLI: Shikonin Inhibits Inflammatory Response in Rheumatoid Arthritis Synovial Fibroblasts via lncRNA-NR024118

Content Provider	PubMed Central
Author	Yang, Ke-ya Chen, Dong-liang
Copyright Year	2015
Abstract	Background. Shikonin is a major chemical component of zicao that possesses anti-inflammatory properties and the ability to mediate cellular and humoral immunity, especially in rheumatoid arthritis (RA). We investigated the impact of shikonin on inflammatory response in RA synovial fibroblasts using the CAIA model. Methods. Severe polyarticular arthritis was induced in Balb/c female mice. Expressions of lncRNA-NR024118, SOCS3, proinflammatory cytokines, and MMPs were evaluated using RT-RCR. Histone acetylation and SOCS3 protein expression were assessed by ChIP assay and western blot, respectively. Results. Mice treated with shikonin showed an abrogation of soft tissue and bone lesions. Shikonin remarkably enhanced the expression of NR024118 and SOCS3 and suppressed the secretion and expression of IL-6, IL-8, and MMPs. Proliferation of cultured RA synovial fibroblasts in the presence of IL-1β was also significantly inhibited by shikonin. Moreover, shikonin dose-dependently increased acetylation of histone H3 at the promoter of NR024118. Finally, NR024118 overexpression and interference significantly changed SOCS3 expression and NR024118 interference could reverse regulation of shikonin on SOCS3, proinflammatory cytokines, and MMPs expression level in MH7A cells. Conclusion. Our results reveal that, in the CAIA mouse model of RA, shikonin has disease modifying activity that is attributable to the inhibition of inflammatory response via lncRNA-NR024118.
Related Links	http://dx.doi.org/10.1155/2015/631737
Starting Page	631737
File Format	PDF
ISSN	1741427X
e-ISSN	17414288
Journal	Evidence-based Complementary and Alternative Medicine : eCAM
Volume Number	2015
Language	English
Publisher	Hindawi Publishing Corporation
Publisher Date	2015-01-01
Access Restriction	Open
Rights Holder	Hindawi Publishing Corporation
Subject Keyword	Complementary and alternative medicine Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Complementary and Alternative Medicine

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Shikonin Inhibits Inflammatory Response in Rheumatoid Arthritis Synovial Fibroblasts via lncRNA-NR024118

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