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2017 ; 22
(6
): 767-774
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Protective effects of Nebivolol against interleukin-1? (IL-1?)-induced type II
collagen destruction mediated by matrix metalloproteinase-13 (MMP-13)
#MMPMID28512729
Li Z
; Liu B
; Zhao D
; Wang B
; Liu Y
; Zhang Y
; Tian F
; Li B
Cell Stress Chaperones
2017[Nov]; 22
(6
): 767-774
PMID28512729
show ga
The pathological progression of osteoarthritis (OA) involves degradation of
articular cartilage matrix. Type II collagen is the main component of cartilage
matrix, which is degraded by pro-inflammatory cytokines such as IL-1? mediated by
MMP-13. Nebivolol, a licensed drug used for the treatment of hypertension in
clinics, displays its anti-inflammatory capacity in various conditions. However,
whether Nebivolol has a protective effect on cartilage matrix degradation has not
been reported before. In this study, we investigated the effects of Nebivolol on
regulating the expression of MMP-13 and degradation of type II collagen. Our
results indicate that Nebivolol alleviated the increase in gene expression,
protein expression, and activity of MMP-13 induced by IL-1?. Importantly, IL-1?
strikingly reduced the levels of type II collagen in cell culture supernatants,
which was reversed by treatment with Nebivolol in a dose-dependent manner.
Mechanistically, Nebivolol was found to alleviate the increased levels of
phosphorylated I?B? and reduced levels of total I?B? induced by IL-1?, which
subsequently mitigated p65 nuclear translocation and the transcriptional activity
of NF-?B. Furthermore, our results indicated that IL-1? treatment resulted in a
significant increase in expression of the transcriptional factor interferon
regulatory factor-1 (IRF-1) at both the mRNA and protein levels, which was
significantly ameliorated by treatment with Nebivolol. The combination of these
findings suggests that Nebivolol can potentially be applied in human OA
treatment.