Morphological, Immunocytochemical, and Biochemical Studies of Rat Costal Chondrocytes Exposed to IL-1
β and TGF-
β1.
JOURNAL OF HEALTHCARE ENGINEERING 2017;
2017:9747264. [PMID:
29065675 PMCID:
PMC5514342 DOI:
10.1155/2017/9747264]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 05/01/2017] [Accepted: 05/11/2017] [Indexed: 12/28/2022]
Abstract
This study was undertaken to determine the effects of IL-1β and TGF-β1 on the expression of differentiation-associated genes in chondrocytes in vitro. Rat costal chondrocytes were exposed to different concentrations of IL-1β and TGF-β1 for 48 h and tested for gene expression. IL-1β increased the expression of aggrecanase-1 and aggrecanase-2 and decreased the content of aggrecan and collagen II. Low concentration of TGF-β1 decreased the expression of aggrecan and collagen II and increased the expression of aggrecanase-2. However, the level of aggrecanase-1 was significantly elevated in the presence of high concentration of TGF-β1. IL-1β and TGF-β1 show the ability to modulate the production of aggrecan and collagen II in chondrocytes in vitro.
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