Sirtuin modulators regulate cell motility, proliferation, and wound healing.
A, kinetics of skin wound healing in CD1 mice treated with SIRT modulators. Animals were treated topically with Resv (n = 13), MC2562 (n = 12), or Sirtinol (n = 12) each day. DMSO was used as a solvent control (n = 12). *, °, and #, p < 0.05 versus solvent. B, epithelial gap histological evaluation at day 5. Resv or MC2562 treatment reduces the epithelial gap significantly at day 5 after punching. * and °, p < 0.05 versus solvent. C, bioluminescence imaging of representative MITO-Luc mice experiments. The images were collected on five animals for each treatment, and one representative animal is shown. D, quantification of emitted light from MITO-Luc mouse would healing. * and °, p < 0.05 versus solvent. E, immunofluorescence panels showing keratinocyte activation after wound healing in MITO-Luc mice. Green, keratin 14; red, luciferase. Magnification ×40).