The transcriptional role of c-Myc in maintaining tissue homeostasis is still unclear. Using mice conditionally expressing an activated form of c-Myc in the epidermis, and genome-wide approaches, Frye and colleagues show that c-Myc modulates the expression of the epidermal differentiation complex locus in the skin by displacing or recruiting specific transcriptional regulators. c-Myc activity is negatively regulated in vivo in this context by Sin3a.
- Elisabete M. Nascimento
- Claire L. Cox
- Michaela Frye