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Avcioglu G, Özbek Ipteç B, Akcan G, Görgün B, Fidan K, Carhan A, Yilmaz G, Kozaci LD. Effects of 1,25-Dihydroxy vitamin D 3 on TNF-α induced inflammation in human chondrocytes and SW1353 cells: a possible role for toll-like receptors. Mol Cell Biochem 2019; 464:131-142. [PMID: 31734843 DOI: 10.1007/s11010-019-03655-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2019] [Accepted: 11/08/2019] [Indexed: 02/06/2023]
Abstract
The purpose of this study is to evaluate anti-inflammatory and chondro-protective effects of 1,25(OH)2D3 in human chondrocytes and SW1353 cells via investigating expressions of MMPs, TIMPs, VDR, and intracellular signalling pathway mediators such as TLR-2 and -4. The HC and SW1353 cells were treated with 1,25(OH)2D3 at 10, 100, and 1000 nM concentrations in the absence/presence of TNF-α (20 ng/mL) for 48 h. The mRNA expressions of MMP-1, -2, -3, -9, and -13, TIMP-1 and -2, VDR, TLR-2 and -4 in HC and SW1353 cells were detected by qPCR after treatments. The cytotoxicity and cell proliferation analyses were assessed by LDH and WST-1 assay, respectively. Protein levels of MMPs, TIMPs, and VDR were analysed by immunocytochemistry and ELISA methods. TNF-α markedly increased cytotoxicity for 24, 48, 72 h (p < 0.05) and vitamin D treatment was shown to diminish the cytotoxic effect of TNF-α. Cell proliferations increased by Vitamin D in a dose-dependent manner. mRNA expressions of MMP-1, -2, -3, -9, and -13, TLR-2 and -4 genes decreased with 1,25(OH)2D3 treatment (p < 0.05). VDR, TIMP-1 and -2 levels elevated after TNF-α exposure compared with the control group in HC cells (p < 0.05). Protein expression levels were determined using Western blotting, ELISA and immunocytochemistry. 1,25(OH)2D3 via binding to VDR, reversed the effects of TNF-α by inhibiting TLR-2 and 4. Decreased levels of VDR, TIMP-1 and -2 after TNF-α treatment were elevated by 1,25(OH)2D3 proportional with increasing 1,25(OH)2D3 doses. 1,25(OH)2D3 and TNF-α co-treatment decreased MMP-1, -2, -3, -9, and -13 levels were after TNF-α exposure.
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Affiliation(s)
- Gamze Avcioglu
- Department of Biochemistry, Faculty of Medicine, Ankara Yildirim Beyazit University, 06800, Ankara, Turkey.
| | - Betül Özbek Ipteç
- Department of Biochemistry, Faculty of Medicine, Ankara Yildirim Beyazit University, 06800, Ankara, Turkey
| | - Gülben Akcan
- Department of Histology and Embryology, Faculty of Medicine, Ankara Yildirim Beyazit University, Ankara, Turkey
| | - Büsra Görgün
- Department of Translational Medicine, Institute of Health Sciences, Ankara Yildirim Beyazit University, Ankara, Turkey
| | - Kübra Fidan
- Department of Translational Medicine, Institute of Health Sciences, Ankara Yildirim Beyazit University, Ankara, Turkey
| | - Ahmet Carhan
- Department of Medical Biology, Faculty of Medicine, Ankara Yildirim Beyazit University, Ankara, Turkey.,Department of Translational Medicine, Institute of Health Sciences, Ankara Yildirim Beyazit University, Ankara, Turkey
| | - Gulsen Yilmaz
- Department of Biochemistry, Faculty of Medicine, Ankara Yildirim Beyazit University, 06800, Ankara, Turkey.,Department of Translational Medicine, Institute of Health Sciences, Ankara Yildirim Beyazit University, Ankara, Turkey
| | - Leyla Didem Kozaci
- Department of Biochemistry, Faculty of Medicine, Ankara Yildirim Beyazit University, 06800, Ankara, Turkey.,Department of Translational Medicine, Institute of Health Sciences, Ankara Yildirim Beyazit University, Ankara, Turkey
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