SOX11 and SOX4 drive the reactivation of an embryonic gene program during murine wound repair

Nat Commun. 2019 Sep 6;10(1):4042. doi: 10.1038/s41467-019-11880-9.

Abstract

Tissue injury induces changes in cellular identity, but the underlying molecular mechanisms remain obscure. Here, we show that upon damage in a mouse model, epidermal cells at the wound edge convert to an embryonic-like state, altering particularly the cytoskeletal/extracellular matrix (ECM) components and differentiation program. We show that SOX11 and its closest relative SOX4 dictate embryonic epidermal state, regulating genes involved in epidermal development as well as cytoskeletal/ECM organization. Correspondingly, postnatal induction of SOX11 represses epidermal terminal differentiation while deficiency of Sox11 and Sox4 accelerates differentiation and dramatically impairs cell motility and re-epithelialization. Amongst the embryonic genes reactivated at the wound edge, we identify fascin actin-bundling protein 1 (FSCN1) as a critical direct target of SOX11 and SOX4 regulating cell migration. Our study identifies the reactivated embryonic gene program during wound repair and demonstrates that SOX11 and SOX4 play a central role in this process.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Animals
  • Cell Differentiation / genetics
  • Cell Movement / genetics
  • Cytoskeleton / metabolism
  • Epidermal Cells / cytology
  • Epidermal Cells / metabolism
  • Epidermis / embryology
  • Epidermis / metabolism
  • Extracellular Matrix
  • Gene Expression Profiling*
  • Gene Expression Regulation, Developmental*
  • Mice
  • Microfilament Proteins / genetics
  • Microfilament Proteins / metabolism
  • Receptors, Odorant / genetics
  • Receptors, Odorant / metabolism
  • SOXC Transcription Factors / genetics*
  • SOXC Transcription Factors / metabolism
  • Wound Healing / genetics*
  • Wounds and Injuries / embryology
  • Wounds and Injuries / genetics*

Substances

  • Microfilament Proteins
  • Receptors, Odorant
  • SOXC Transcription Factors
  • Sox11 protein, mouse
  • Sox4 protein, mouse
  • fascin1 protein, mouse