Chinese Journal of Tissue Engineering Research ›› 2024, Vol. 28 ›› Issue (12): 1950-1955.doi: 10.12307/2024.005

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Wnt signaling pathway in intervertebral disc degeneration

Fan Zhihong1, Zhang Xian2, Li Chao1   

  1. 1Nanjing University of Chinese Medicine, Wuxi 210023, Jiangsu Province, China; 2Wuxi Affiliated Hospital of Nanjing University of Chinese Medicine, Wuxi 214000, Jiangsu Province, China
  • Received:2023-01-09 Accepted:2023-03-06 Online:2024-04-28 Published:2023-08-23
  • Contact: Zhang Xian, Chief TCM physician, Master’s supervisor, Wuxi Affiliated Hospital of Nanjing University of Chinese Medicine, Wuxi 214000, Jiangsu Province, China
  • About author:Fan Zhihong, Master candidate, Nanjing University of Chinese Medicine, Wuxi 210023, Jiangsu Province, China
  • Supported by:
    Wuxi Science and Technology Innovation and Entrepreneurship Fund Project, No. Y2022009 (to ZX)

Abstract: BACKGROUND: Wnt signaling pathway is overexpressed in degenerative intervertebral discs, and inhibition of its expression can delay the process of intervertebral disc degeneration. Therefore, Wnt signaling pathway is closely related to intervertebral disc degeneration.  
OBJECTIVE: To summarize the relationship between Wnt signaling pathway and intervertebral disc, especially the specific role and influence of Wnt signaling pathway in intervertebral disc degeneration.
METHODS: The first author took “intervertebral disc, Wnt, cell proliferation, cell senescence, cell apoptosis, extracellular matrix” as the English search terms. PubMed, Web of science and OVID LWWSpringerlink were searched for articles published from 2000 to January 2023, and articles related to Wnt signaling pathway and disc degeneration were consulted. Totally 54 articles were reviewed by reading, collating and preserving.  
RESULTS AND CONCLUSION: (1) During intervertebral disc formation in embryos, Wnt signaling pathway is overexpressed, which is involved in intervertebral disc formation and promotes posterior extension of notochord. (2) During intervertebral disc degeneration, Wnt signaling pathway can inhibit cell proliferation by stagnating cell cycle, increase the expression of age-related proteins and promote cell aging by participating in oxidative stress, and participate in cell apoptosis by regulation of long non-coding RNA. (3) Wnt signaling pathway can also decrease extracellular matrix related protein synthesis, promote extracellular matrix degradation and accelerate intervertebral disc degeneration. (4) Wnt signaling pathway can promote cell regeneration by activating as early intervertebral disc formation signal and participate in inducing stem cells to differentiate into intervertebral disc cells to repair damaged intervertebral disc. For example, Wnt signaling pathway can induce stem cells from cartilage endplate cells to migrate and transform to intervertebral disc.

Key words: Wnt signaling pathway, intervertebral disc degeneration, cell proliferation, cell senescence, cell apoptosis, extracellular matrix, long non-coding RNA, intervertebral disc repair, stem cell, traditional Chinese medicine

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