Acta Veterinaria et Zootechnica Sinica ›› 2021, Vol. 52 ›› Issue (1): 219-225.doi: 10.11843/j.issn.0366-6964.2021.023

• BASIC VETERINARY MEDICINE • Previous Articles     Next Articles

Variation of O-GlcNAc and IL-6 Expression in C2C12 Cells to Different Durations of Cold Exposure

HU Yajie, LIU Yang, YAO Ruizhi, SHI Hongzhao, LIU Peng, XU Bin, LÜ Hongming, LI Shize*   

  1. Heilongjiang Provincial Key Laboratory of Prevention and Control of Bovine Diseases, The National Experimental Teaching Demonstration Center of Veterinary Medcine, College of Animal Science & Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China
  • Received:2020-05-06 Online:2021-01-23 Published:2021-01-19

Abstract: Under cold exposure, O-linked β-N-acetylglucosamine (O-GlcNAc) in skeletal muscle increased significantly, and O-GlcNAc, as a "stress receptor", regulated cell signal transduction and gene transcription. Skeletal muscle, as a secretory organ, produces myogenic IL-6 through contraction, which not only plays an immune role but also can regulate the metabolism of glucose and lipid in skeletal muscle. Therefore, the purpose of this study was to detect the expression of O-GlcNAc related protein and cytokine IL-6 in C2C12 under different durations of cold exposure. To explore the potential relationship between O-GlcNAc and IL-6 under of cold exposure. In this experiment, C2C12 was cultured in vitro and randomly divided into control group (37℃±0.5℃) and cold exposure (32℃±0.5℃) 3, 6, 9, and 12 hours treatment group. Western blot was used to detect the glycosylation level of O-GlcNAc and the expression level of OGT, OGA, and IL-6 under different durations of exposure. The results showed that compared with the normal temperature control group, the expression level of OGT was significantly increased (P<0.05) after 3 hours of cold exposure and the expression level of OGA was significantly increased (P<0.05) after 6 hours of cold exposure; the expression level of O-GlcNAc glycosylation and IL-6 were significantly increased (P<0.01) after 3 hours of cold exposure. The expression levels of O-GlcNAc glycosylation and IL-6 in C2C12 cells were significantly increased under different durations of cold exposure. At the same time, the trend of O-GlcNAc glycosylation and IL-6 expression under different durations of cold exposure was highly similar, suggesting that O-GlcNAc glycosylation participated in the regulation of IL-6 expression under cold exposure.

Key words: cold exposure, O-GlcNAc, IL-6, OGT, OGA

CLC Number: