›› 2021, Vol. 41 ›› Issue (6): 545-550.

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The action mechanism and application prospects of NELL-1 in promoting osteogenesis and chondrogenesis

Shi-Yu HU1,   

  • Received:2020-08-12 Revised:2020-09-17 Online:2021-06-28 Published:2021-06-25

Abstract: NELL-1 (neural epidermal growth factor-like 1), as a growth factor with high specificity to osteochondrocyte cell line, has been paid close attention to because of its effect of inducing bone formation locally. In addition, it also has the osteogenic potential as a systemic therapeutic drug and the function of promoting cartilage formation. In terms of osteogenesis, NELL-1 mainly takes effect through Runx2, MAPK signaling pathway, and classical Wnt signaling pathway, and it has a synergistic effect with the classical osteogenic factor BMPs. In recent years, due to the continuous progress of bioinformatics and high-throughput RNA sequencing, researchers have also discovered the potential regulatory role of RNA network when NELL-1 promotes osteogenesis. The chondrogenic activity of NELL-1 mainly depends on the Ihh signal transduction mediated by Runx3. This article mainly reviews the related mechanisms of NELL-1 in promoting osteogenesis and chondrogenesis, and its application in the field of bone tissue regeneration and cartilage tissue regeneration.

Key words: NELL-1, osteogenesis, chondrogenesis, Osteoporosis, Osteoarthritis

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