Publication - 2015Simvastatin prevents and reverses depigmentation in a mouse model of vitiligo

Publication

We sought to identify new treatments for vitiligo, and first considered repurposed medications because of the availability of safety data and expedited regulatory approval. We previously reported that the IFN-γ-induced chemokine CXCL10 is expressed in lesional skin from vitiligo patients, and that it is critical for the progression and maintenance of depigmentation in our mouse model of vitiligo. We hypothesized that targeting IFN-γ signaling might be an effective new treatment strategy. STAT1 activation is required for IFN-γ signaling and recent studies revealed that simvastatin, an FDA-approved cholesterol-lowering medication, inhibited STAT1 activation in vitro. Therefore, we hypothesized that simvastatin may be an effective treatment for vitiligo. We found that simvastatin both prevented and reversed depigmentation in our mouse model of vitiligo, and reduced the number of infiltrating autoreactive CD8+ T cells in the skin. Treatment of melanocyte-specific, CD8+ T cells in vitro decreased proliferation and IFN-γ production, suggesting additional effects of simvastatin directly on T cells. Based on these data, simvastatin may be a safe, targeted treatment option for patients with vitiligo.

Full text   

Agarwal P, Rashighi M, Essien KI, Richmond JM, Randall L, Pazoki-Toroudi H, Hunter CA, Harris JE



FAQOther Questions

  • Isn't it just a cosmetic disorder?

    Contrary to popular belief, vitiligo is not merely a cosmetic issue but a complex autoimmune disorder that affects the body’s largest organ—along with other vital systems—and is...

  • Vitiligo and hearing loss: any connection?

    Vitiligo is primarily recognized for causing skin discoloration, but it can also impact melanocytes in unexpected areas, such as the inner ear. This raises questions about wheth...

  • I have vitiligo: will my children have vitiligo, too?

    If you have vitiligo, you might wonder about the chances of your children developing the condition. While there is a genetic component, vitiligo is not a straightforward heredit...