Abstract:
:Recent studies have reported elevated expression levels in active rheumatoid arthritis patients of the cluster of differentiation (CD) 147 on CD14(+) peripheral blood monocytes and as a result, CD147 may be a target for the development of a novel rheumatoid arthritis therapy. This report describes the inhibitory effects of infliximab on CD147 and metalloproteinases (MMP)-3 and MMP-9 overexpression in peripheral blood monocytes obtained from patients with active rheumatoid arthritis. Thirty patients with active rheumatoid arthritis that were refractory to methotrexate therapy were randomized at a 4:1 ratio into groups A and B, respectively. Group A received three to four infusions of infliximab (3mg/kg) and group B participants received four infusions of placebo. Both groups were also treated with a stable background dose of methotrexate. The CD147 expression levels on CD14(+) peripheral blood monocytes of rheumatoid arthritis patients was detected by flow cytometry. The expression of CD147, MMP-3, and, MMP-9 mRNA in peripheral blood mononuclear cells was assayed by real-time quantitative PCR, and the expression of MMP-3 and MMP-9 in serum was measured by a multiplexed microsphere-based flow assay. Results showed that the expression of CD147 and MMP-9 mRNA in group A decreased compared to group B. Expression of CD147 on CD14(+) monocytes was reduced (P<0.05), and serum MMP-3 and -9 levels in group A were decreased by week 18. These data suggested that infliximab could inhibit CD147 expression on CD14(+) monocytes as well as reduce the levels of MMP-3 and MMP-9 in peripheral blood monocytes.
journal_name
Eur J Pharmacoljournal_title
European journal of pharmacologyauthors
Huang J,Xie B,Li Q,Xie X,Zhu S,Wang M,Peng W,Gu Jdoi
10.1016/j.ejphar.2012.10.030subject
Has Abstractpub_date
2013-01-05 00:00:00pages
429-34issue
1-3eissn
0014-2999issn
1879-0712pii
S0014-2999(12)00898-9journal_volume
698pub_type
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