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Functions of the SNAI family in chondrocyte-to-osteocyte development

Ehsan Razmara1, Amirreza Bitaraf2, Behnaz Karimi3

  • 1Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia.

Annals of the New York Academy of Sciences
|August 17, 2021
PubMed

Insights

This review details the crucial roles of zinc finger protein SNAI family members (SNAIs) in the development of mature osteocytes from chondrocytes. It explores their regulation of bone formation and cell death, plus epigenetic influences.

Area of Science:

  • Cellular Biology
  • Developmental Biology
  • Molecular Biology

Background:

  • Osteocyte development involves complex cellular mechanisms.
  • The zinc finger protein SNAI family (SNAIs) is implicated in cancer, but their role in chondrocyte-to-osteocyte development is under-reviewed.
  • Understanding SNAIs' function in bone development is crucial for potential therapeutic strategies.

Purpose of the Study:

  • To review the roles of SNAIs in the transition of chondrocytes to osteocytes.
  • To explore the regulation of chondrogenesis and osteogenesis by SNAIs via signaling pathways and programmed cell death.
  • To discuss the influence of epigenetic factors on chondrocyte and osteocyte development in relation to SNAIs.

Main Methods:

  • Literature review focusing on SNAI family functions in bone development.
  • Analysis of signaling pathways regulating chondro- and osteogenesis.
  • Examination of epigenetic modifications (DNA methylation, histone modifications, noncoding RNAs) impacting bone development.
  • Review of genotype-phenotype correlations in animal models.

Main Results:

  • SNAIs play significant roles in regulating chondrogenesis and osteogenesis.
  • SNAIs influence programmed cell death pathways relevant to osteocyte development.
  • Epigenetic factors like DNA methylation and noncoding RNAs are critical regulators in chondrocyte and osteocyte development.
  • Genotype-phenotype studies in animal models highlight the importance of SNAIs in bone formation.

Conclusions:

  • The SNAI family is vital for chondrocyte-to-osteocyte differentiation and overall bone development.
  • Epigenetic mechanisms are key modulators of SNAI function in cartilage and bone.
  • Further research into SNAIs may offer therapeutic targets for bone-related disorders.
Keywords:
EMTSNAI1SNAI2chondrogenesisepigenetic modulationosteogenesiszinc finger protein

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