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Erschienen in: Inflammation Research 11/2012

01.11.2012 | Original Research Paper

Regulation of inflammatory response in human chondrocytes by lentiviral mediated RNA interference against S100A10

verfasst von: Changzhi Song, Xiaoye Zhou, Qirong Dong, Rengen Fan, Guangzhou Wu, Biao Ji, Qingbing Meng, Minqian Zheng

Erschienen in: Inflammation Research | Ausgabe 11/2012

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Abstract

Objective

The aim of the present study was to evaluate the effects of S100A10 silencing on the inflammatory response in human chondrocytes (HCs).The inflammation induced by lipopolysaccharide (LPS) was investigated in HCs in which the S100A10 was blocked with a lentiviral shRNA vector.

Methods

A lentiviral shRNA vector targeting S100A10 was constructed and packaged to effectively block S100A10 expression in HCs. HCs were infected with the lentivirus. S100A10 expression levels in HCs were detected by western blot analysis. Enzyme-linked immunosorbent assay (ELISA) was employed to evaluate the change of cytokine secretion levels. The effects of S100A10 silencing on the activation of mitogen-activated protein kinases (MAPKs) and NF-κB signaling pathway were also determined by western blot analysis. In addition, fluo-3-AM was used to demonstrate the change in calcium mobilization.

Results

Lentivirus effectively infected the HCs and inhibited the expression of S100A10. HCs with downregulated S100A10 showed significantly decreased production of inflammatory cytokines such as tumor necrosis factor-α (TNF-α), interleukin (IL)-1β and IL-10. S100A10 silencing markedly suppressed the activation of MAPKs induced by LPS. Furthermore, the calcium concentration increase in HCs stimulated by LPS was also inhibited by S100A10 knockdown.

Conclusion

Our investigation demonstrated that S100A10 might be considered as a potential target for anti-inflammatory treatment.
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Metadaten
Titel
Regulation of inflammatory response in human chondrocytes by lentiviral mediated RNA interference against S100A10
verfasst von
Changzhi Song
Xiaoye Zhou
Qirong Dong
Rengen Fan
Guangzhou Wu
Biao Ji
Qingbing Meng
Minqian Zheng
Publikationsdatum
01.11.2012
Verlag
SP Birkhäuser Verlag Basel
Erschienen in
Inflammation Research / Ausgabe 11/2012
Print ISSN: 1023-3830
Elektronische ISSN: 1420-908X
DOI
https://doi.org/10.1007/s00011-012-0519-6

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