ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2019, Vol. 50 ›› Issue (7): 1509-1517.doi: 10.11843/j.issn.0366-6964.2019.07.021

• CLINICAL VETERINARY MEDICINE • Previous Articles     Next Articles

Vitamin D Regulates OC Formation in the Co-culture System of Chicken BMSCs and BMMs

GU Jianhong1,2,3, MIN Wenyan1,2,3, ZHOU Jiahua1, ZHAO Yutian1,2,3, BIAN Jianchun1,2,3, LIU Xuezhong1,2,3, YUAN Yan1,2,3, LIU Zongping1,2,3*   

  1. 1. College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China;
    2. Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China;
    3. Jiangsu Key Laboratory of Zoonosis, Yangzhou 225009, China
  • Received:2019-02-28 Online:2019-07-23 Published:2019-07-23

Abstract: This study aimed to investigate the effect of 1α, 25-(OH)2D3 on the formation of osteoclast (OC) in the co-culture system of chicken bone marrow mesenchymal stem cells (BMSCs) and bone marrow mononuclear macrophage cells (BMMs). In the study, tartrate-resistant acid phosphatase (TRAP), bone absorption function identification, and OC marker mRNA and protein expression detection were performed on cells treated with 1α, 25-(OH)2D3. The results showed that, 1α, 25-(OH)2D3 up-regulated the expression of receptor activator for nuclear factor-κB ligand (RANKL) and down-regulated the expression of osteoprotegerin (OPG) of BMSCs. Compared to the control group, the number of OC was increased in the co-culture system at day 5 treated by 1α, 25-(OH)2D3. Meanwhile, the bone resorption activity, the mRNA and protein expression of matrix metalloproteinase 9 (MMP-9), carbonic anhydrase Ⅱ (CAⅡ), cathepsin K and TRAP were significantly enhanced (P<0.01) by 1α, 25-(OH)2D3. Among them, 10-8 mol·L-11α, 25-(OH)2D3 had the most obvious effect. The results confirmed that 10-8 mol·L-1 1α, 25-(OH)2D3 could mediate the formation of OC, which showed bone resorption activity, in the co-culture system of BMSCs and BMMs from chicken. Our study lays a foundation for further research on the mechanism of poultry OC in bone, calcium and phosphorus metabolic diseases.

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