Cancer ResearchSex Hormones Shape How Male and Female Mouse Skin Repairs Itself
Skin renewal and repair follow different patterns in male and female mice, according to research described in Nature. Scientists tracked individual skin stem cells and their descendants in living mice for five months. Female cells coordinated their behavior more closely, while male cells acted more independently, with additional experiments pointing to sex hormones as regulators. This coordination may help explain why female mice heal wounds faster, especially during the first few days. The researchers also identified an intermediate stage between stem cells and fully specialized skin cells, helping clarify how the skin maintains its protective barrier. The findings could inform regenerative medicine and highlight the importance of studying both sexes. However, they do not establish that the same patterns occur in humans or support hormone treatments for wound healing.
