Acta Veterinaria et Zootechnica Sinica ›› 2025, Vol. 56 ›› Issue (8): 3813-3825.doi: 10.11843/j.issn.0366-6964.2025.08.022

• Animal Genetics and Breeding • Previous Articles     Next Articles

Cultivation and Identification of Tenogenic Mesenchymal Stem Cells for Sports-Related Injury Therapy in vitro

ZHANG Yang1(), WANG Zhongfa2, LI Minjuan2, HE Yunan2, GUAN Weijun2,*()   

  1. 1. Liaoning Normal University, Dalian 116029, China
    2. Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
  • Received:2025-04-16 Online:2025-08-23 Published:2025-08-28
  • Contact: GUAN Weijun E-mail:zhangyang@cupes.edu.cn;guanweijun@caas.cn

Abstract:

Obtaining high-quality tenogenic mesenchymal stem cells(MSCs) through in vitro culture, providing seed cells for the treatment of sports injuries (including equine athletic injuries), various diseases, single-cell sequencing, multi-omics research, genomic library construction, cDNA library construction, mitochondrial DNA library construction, gene function research and other investigations, had important in-depth research value. In this study, tendon tissues were collected from the skeletal muscles of 63 healthy male Peking duck embryos at 26 days of age (average weight: 40.3 g). Tenogenic MSCs were isolated and cultured in vitro using the type Ⅳ collagenase digestion method and the tissue block adhesion culture methods. Meanwhile, comprehensive quality assessment of the cultured cells in vitro were conducted according to international cell quality inspection standards and parameters. The results of 20 quality tests, including cellular morphology, pre-cryopreservation viability, microbial contamination (bacteria, fungi, protozoa, mycoplasma, viruses), positive marker expression, clonogenic capacity, migration ability, post-thaw morphology, post-thaw viability, growth curve analysis, population doubling time, reverse transcription PCR (RT-PCR) for surface markers, immunohistochemistry, karyotype analysis, and multidirectional differentiation potential (adirogenic, osteogenic, and chondrogenic induction), indicated that all established cell lines met international standarda for high-quality cells. Through a large number of repeated experiments, a scientific system for the culture of tenogenic MSCs in vitro for sports injuries therapy has been established, and a substantial quantity of high-quality donor cells has been acquired. This achievement lays a solid theoretical, methodological, technical, and material foundation for successfully constructing medical models for sports injury treatment, as well as for related research in zoology, animal science, veterinary medicine, and the broader life sciences.

Key words: mesenchymal stem cells, culture and identification, treatment of sports injuries

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