Cited by 73Osteoarthritis Treatment and MechanismsGenomics and Chromatin DynamicsDevelopmental Biology and Gene Regulation

SOX9 is dispensable for the initiation of epigenetic remodeling and the activation of marker genes at the onset of chondrogenesis

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Liu, Chia-Feng, Angelozzi, Marco, Haseeb, Abdul, Lefebvre, Véronique·2018·Development

Abstract

SOX9 controls cell lineage fate and differentiation in major biological processes. It is known as a potent transcriptional activator of differentiation-specific genes, but its earliest targets and its contribution to priming chromatin for gene activation remain unknown. Here, we address this knowledge gap using chondrogenesis as a model system. By profiling the whole transcriptome and the whole epigenome of wild-type and Sox9 -deficient mouse embryo limb buds, we uncover multiple structural and regulatory genes, including Fam101a , Myh14 , Sema3c and Sema3d , as specific markers of precartilaginous condensation, and we provide evidence of their direct transactivation by SOX9. Intriguingly, we find that SOX9 helps remove epigenetic signatures of transcriptional repression and establish active-promoter and active-enhancer marks at precartilage- and cartilage-specific loci, but is not absolutely required to initiate these changes and activate transcription. Altogether, these findings widen our current knowledge of SOX9 targets in early chondrogenesis and call for new studies to identify the pioneer and transactivating factors that act upstream of or along with SOX9 to prompt chromatin remodeling and specific gene activation at the onset of chondrogenesis and other processes.

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Registry

Crossref · 10.1242/dev.164459

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  • In chondrogenic systems, SOX9 can activate enhancers but may not be required for initiation of chromatin changes.

    “In chondrogenic systems, SOX9 can activate enhancers (19), but may not be required for the initiation of chromatin changes (20).”
  • SOX9 may not be crucial for epigenetic changes during chondrogenesis.

    “For instance, SOX9 may not be crucial for epigenetic changes during chondrogenesis (20).”

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Authors
Liu, C.-F., Angelozzi, M., Haseeb, A., & Lefebvre, V.
Affiliations
Cleveland Clinic (US)
Venue
Development
Published
2018-07-15
Volume
145
Issue
14
ISSN
  • 0950-1991 (ISSN-L)
  • 1477-9129
OpenAlex
W2884620368
Cited by
73
References
90
Citations by year
2026: 4 · 2025: 5 · 2024: 4 · 2023: 6 · 2022: 10 · 2021: 22 · 2020: 15 · 2019: 7
FWCI
9.39
Type
journal article
Language
en
Open access
Locations
  • Development (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • HighWire Press Open Archive (submittedVersion)
Funders
National Institute of Arthritis and Musculoskeletal and Skin Diseases (AR46249, AR68308)
Topics
  • Health Sciences › Medicine › Rheumatology › Osteoarthritis Treatment and Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
Keywords
SOX9, chondrogenesis, epigenetic remodeling, chromatin remodeling, transcriptional activation, transcriptional repression, pioneer transcription factors, limb bud, MYH14, SEMA3C, SEMA3D
MeSH terms
Animals, Embryo, Mammalian, Mice, Transgenic, Microfilament Proteins, Nerve Tissue Proteins, Gene Expression Regulation, Developmental, Limb Buds, Myosin Heavy Chains, Chondrogenesis, Myosin Type II, Chromatin Assembly and Disassembly, Epigenesis, Genetic, Mice, SOX9 Transcription Factor

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