Keratin 6A (KRT6A) actually makes skin inflammation worse, not better. When researchers reduced KRT6A in mice with rosacea-like and psoriasis-like conditions, inflammation improved—but when they increased it, inflammation got worse. The protein appears to trigger inflammatory signals in skin cells, which could explain why it's elevated in people with these inflammatory skin diseases.

Researchers tested keratin 6A in both mouse models and human skin cells, using conditions that mimic rosacea and psoriasis. They then traced the exact molecular pathway to understand how KRT6A drives inflammation.

Funding not disclosed in abstract