Potential Antiphotoaging Effect of Human Cathelicidin LL-37 Fragments and KR-12 Analogs on UVB-Induced HaCaT Cells and UVA-Induced HDF Cells.

ABSTRACT: Cathelicidin LL-37, an antimicrobial peptide (AMP) of the innate immune system, wards off bacterial infections. Recent research has identified plenty of biological functions of AMPs beyond their antimicrobial activity, including antioxidant, self-renewal, and procollagen properties, making them valuable for antiaging products. In this study, we assessed the antiphotoaging potential of cathelicidin LL-37 fragments and KR-12 analogs using human immortalized keratinocytes (HaCaT) and human dermal fibroblasts (HDF). Our results reveal that these peptides can modulate ultraviolet-radiation-induced photodamage, exhibiting anti-inflammatory and antioxidant properties. Notably, we proved the immune modulation effects of LL-23. Additionally, these peptides promote cell migration and collagen synthe

SUBMITTER: Li M 

PROVIDER: S-EPMC12392188 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature