Chinese Journal of Tissue Engineering Research ›› 2016, Vol. 20 ›› Issue (29): 4277-4283.doi: 10.3969/j.issn.2095-4344.2016.29.003

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Influence of interleukin-1beta on microRNA-27b and matrix metalloproteinase-13 expression in rat chondrocytes

Shi Jing, Li Tong, Zuo Can-hui, Zhi Liang, Wei Rong, Wang Wei-min, Liu Ying-jie   

  1. Department of Orthopedics, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang 471009, Henan Province, China
  • Received:2016-05-26 Online:2016-07-08 Published:2016-07-08
  • About author:Shi Jing, Master, Attending physician, Department of Orthopedics, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang 471009, Henan Province, China

Abstract:

BACKGROUND: Matrix metalloproteinase-13 is most active in the degradation of collagen type II in the extracellular matrix of cartilage. Interleukin-1 (IL-1) is thought to be the inducer of matrix metalloproteinases, and participates in the degradation and degeneration of articular cartilage.
OBJECTIVE: To study the influence of IL-1β on microRNA-27b (miR-27b) and matrix metalloproteinase-13 expression of chondrocytes in rats.
METHODS: Chondrocytes isolated from seven male Wistar rats were cultured and divided into IL-1β stimulation group and control group. No stimulus was given in the control group; 10 μg/L of serum free medium was used to culture rat chondrocytes in the IL-1β stimulation group. Cell growth was observed at 0, 24, and 48 hours under an inverted microscope. miR-27b and matrix metalloproteinase-13 expression in the cultured chondrocytes were detected.
RESULTS AND CONCLUSION: The relative expression of matrix metalloproteinase-13 in rat chondrocytes was gradually increased when induced by IL-1β at 0, 24, and 48 hours (P < 0.05). Expression of miR-27b and miR-31 in rat chondrocytes at 24 and 48 hours induced by IL-1β gradually decreased (P < 0.05); conversely, expression of MiR-26a, miR-26b, miR-23, and miR-204 gradually increased (P < 0.05). After 48 hours of IL-1β induction, expression of miR-27b was the lowest in rat chondrocytes (P < 0.05). These findings suggest that IL-1β inhibits miR-27b expression, strengthens the expression of matrix metalloproteinase-13, and damages chondrocytes, contributing to both the onset and progression of osteoarthritis.

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程

Key words: Interleukins, Matrix Metalloproteinases, MicroRNAs, Osteoarthritis

CLC Number: