Abstract:
INTRODUCTION:C-reactive protein (CRP) is one of the biomarkers for the diagnosis and assessment of disease activity in rheumatoid arthritis (RA). CRP is not only the by-product of inflammatory response, but also plays proinflammatory and prothrombotic roles. The aim of this study was to determine the role of CRP on bone destruction in RA. METHODS:CRP levels in RA synovial fluid (SF) and serum were measured using the immunoturbidimetric method. The expression of CRP in RA synovium was assessed using immunohistochemical staining. CD14+ monocytes from peripheral blood were cultured with CRP, and receptor activator of nuclear factor-κB ligand (RANKL) expression and osteoclast differentiation were evaluated using real-time PCR, counting tartrate resistant acid phosphatase (TRAP)-positive multinucleated cells and assessing bone resorbing function. CRP-induced osteoclast differentiation was also examined after inhibition of Fcγ receptors. RESULTS:There was a significant correlation between CRP levels in serum and SF in RA patients. The SF CRP level was correlated with interleukin (IL)-6 levels, but not with RANKL levels. Immunohistochemical staining revealed that compared with the osteoarthritis synovium, CRP was more abundantly expressed in the lining and sublining areas of the RA synovium. CRP stimulated RANKL production in monocytes and it induced osteoclast differentiation from monocytes and bone resorption in the absence of RANKL. CONCLUSIONS:CRP could play an important role in the bony destructive process in RA through the induction of RANKL expression and direct differentiation of osteoclast precursors into mature osteoclasts. In the treatment of RA, lowering CRP levels is a significant parameter not only for improving disease activity but also for preventing bone destruction.
journal_name
Arthritis Res Therjournal_title
Arthritis research & therapyauthors
Kim KW,Kim BM,Moon HW,Lee SH,Kim HRdoi
10.1186/s13075-015-0563-zsubject
Has Abstractpub_date
2015-03-04 00:00:00pages
41eissn
1478-6354issn
1478-6362pii
10.1186/s13075-015-0563-zjournal_volume
17pub_type
杂志文章abstract:INTRODUCTION:The translational and predictive value of animal models highly depends on the validity of respective readout parameters. In arthritis research, there has been a shift from sole threshold testing for pain-related behavior, as well as from swelling and histology assessment for inflammation, toward an analysi...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar3342
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journal_title:Arthritis research & therapy
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journal_title:Arthritis research & therapy
pub_type: 评论,社论
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更新日期:2010-01-01 00:00:00
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journal_title:Arthritis research & therapy
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pub_type: 杂志文章,评审
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journal_title:Arthritis research & therapy
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doi:10.1186/ar3309
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更新日期:2020-10-19 00:00:00
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journal_title:Arthritis research & therapy
pub_type: 临床试验,杂志文章
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doi:10.1186/ar2902
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journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar4678
更新日期:2014-07-31 00:00:00
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journal_title:Arthritis research & therapy
pub_type: 杂志文章,评审
doi:10.1186/ar2500
更新日期:2008-01-01 00:00:00
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journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar4403
更新日期:2013-01-01 00:00:00
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journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar4536
更新日期:2014-04-10 00:00:00
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journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar3237
更新日期:2011-02-03 00:00:00
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pub_type: 杂志文章
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pub_type: 杂志文章
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pub_type: 杂志文章
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pub_type: 杂志文章,多中心研究,随机对照试验
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更新日期:2005-01-01 00:00:00
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journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar790
更新日期:2003-01-01 00:00:00
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journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar4065
更新日期:2012-10-18 00:00:00
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journal_title:Arthritis research & therapy
pub_type: 评论,社论,评审
doi:10.1186/ar2839
更新日期:2009-01-01 00:00:00
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journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar2668
更新日期:2009-01-01 00:00:00
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journal_title:Arthritis research & therapy
pub_type: 杂志文章
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更新日期:2010-01-01 00:00:00
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更新日期:2011-03-17 00:00:00
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更新日期:2013-01-01 00:00:00
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journal_title:Arthritis research & therapy
pub_type: 杂志文章,评审
doi:10.1186/ar2005
更新日期:2006-01-01 00:00:00