The myocardin family of transcriptional coactivators: Versatile regulators of cell growth, migration, and myogenesis

G. C Teg Pipes, Esther E. Creemers, Eric N. Olson

Research output: Contribution to journalReview articlepeer-review

354 Scopus citations

Abstract

The association of transcriptional coactivators with sequence-specific DNA-binding proteins provides versatility and specificity to gene regulation and expands the regulatory potential of individual cis-regulatory DNA sequences. Members of the myocardin family of coactivators activate genes involved in cell proliferation, migration, and myogenesis by associating with serum response factor (SRF). The partnership of myocardin family members and SRF also controls genes encoding components of the actin cytoskeleton and confers responsiveness to extracellular growth signals and intracellular changes in the cytoskeleton, thereby creating a transcriptional-cytoskeletal regulatory circuit. These functions are reflected in defects in smooth muscle differentiation and function in mice with mutations in myocardin family members. This article reviews the functions and mechanisms of action of the myocardin family of coactivators and the physiological significance of transcriptional coactivation in the context of signal-dependent and cell-type-specific gene regulation.

Original languageEnglish (US)
Pages (from-to)1545-1556
Number of pages12
JournalGenes and Development
Volume20
Issue number12
DOIs
StatePublished - Jun 15 2006

Keywords

  • Coactivator
  • MRTF
  • Myocardin
  • SRF
  • Smooth muscle

ASJC Scopus subject areas

  • Genetics
  • Developmental Biology

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