Topical treatment with a cathepsin G inhibitor, β‐keto‐phosphonic acid, blocks ultraviolet irradiation‐induced basement membrane damage in hairless mouse skin

Our present study showed the possible involvement of CTSG in UV-induced basement membrane damage in skin through topical treatment with a CTSG inhibitor, KPA. Thus, inhibition of CTSG may be a useful strategy for the prevention of UV-induced basement membrane damage and photoaging.