Abstract:
:Baicalein shows anti-inflammatory effects in human rheumatoid arthritis fibroblast-like synoviocytes (RAFLS). Considering its anti-proliferatory effects on various cancer cells, we investigated the effects of baicalein on interleukin-1 beta (IL-1β)-induced proliferation of human RAFLS. Cell proliferation was examined by (3)H-thymidine incorporation assay. Western blot analysis was performed to assess the phosphorylation of extracellular regulating kinase (ERK), p38, and c-Jun N-terminal kinase, and nuclear translocation of nuclear factor kappa B (NF-κB) subunit p65. Notably, baicalein significantly suppressed IL-1β-mediated RAFLS proliferation (P < 0.05), along with reduced ERK1/2 and p38 phosphorylation. The IL-1β-induced p65 nuclear translocation and NF-κB DNA binding activity was significantly decreased by baicalein. Additionally, the inhibitory effects of baicalein on IL-1β-induced proliferation of RAFLS were dose-dependently reversed by the addition of recombinant macrophage migration inhibitory factory (MIF). Our results indicate that baicalein inhibits IL-1β-induced RAFLS proliferation, which involves suppression of NF-κB transcriptional activity and MIF-mediated signaling.
journal_name
Inflammationjournal_title
Inflammationauthors
Chen S,Yang Y,Feng H,Wang H,Zhao R,Liu Hdoi
10.1007/s10753-013-9725-9subject
Has Abstractpub_date
2014-02-01 00:00:00pages
163-9issue
1eissn
0360-3997issn
1573-2576journal_volume
37pub_type
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