title: Oral administration of Lactobacillus plantarum HY7714 protects hairless mouse against ultraviolet B-induced photoaging.
abstract: Ultraviolet (UV) irradiation alters multiple molecular pathways in the skin, thereby inducing skin damage, including photoaging. In recent years, probiotics have gained interest due to their beneficial effects on skin health, such as inhibiting atopic dermatitis and improving skin immunity or inflammation. However, little is known about the effects of probiotics on UVBinduced photoaging. In this study, we evaluated the effect of Lactobacillus plantarum HY7714 against UVB-induced photoaging in human dermal fibroblasts and hairless mice. The results showed that L. plantarum HY7714 treatment effectively rescued UVB-reduced procollagen expression through the inhibition of UVB-induced matrix metalloproteinase (MMP)-1 expression in human dermal fibroblasts. Data from a western blot showed that L. plantarum HY7714 inhibited the phosphorylation of Jun N-terminal kinase, thereby suppressing the UVB-induced phosphorylation and expression of c-Jun. Oral administration of L. plantarum HY7714 clearly inhibited the number, depth, and area of wrinkles in hairless mouse skin. Histological data showed that L. plantarum HY7714 significantly inhibited UVB-induced epidermal thickness in mice. Western blot and zymography data also revealed that L. plantarum HY7714 effectively inhibited MMP-13 expression as well as MMP-2 and -9 activities in dermal tissue. Collectively, these results provide further insight regarding the skin biological actions of L. plantarum HY7714, a potential skin anti-photoaging agent.
authors.affiliation: Korea Yakult Co., Ltd., Yongin 446-901, Republic of Korea.
authors.forename: Hyun Mee
authors.initials: HM
authors.lastname: Kim
authors.forename: Dong Eun
authors.initials: DE
authors.lastname: Lee
authors.forename: Soo Dong
authors.initials: SD
authors.lastname: Park
authors.forename: Yong-Tae
authors.initials: YT
authors.lastname: Kim
authors.forename: Yu Jin
authors.initials: YJ
authors.lastname: Kim
authors.forename: Ji Woong
authors.initials: JW
authors.lastname: Jeong
authors.forename: Sung Sik
authors.initials: SS
authors.lastname: Jang
authors.forename: Young-Tae
authors.initials: YT
authors.lastname: Ahn
authors.forename: Jae-Hun
authors.initials: JH
authors.lastname: Sim
authors.forename: Chul-Sung
authors.initials: CS
authors.lastname: Huh
authors.forename: Dae Kyun
authors.initials: DK
authors.lastname: Chung
authors.forename: Jung-Hee
authors.initials: JH
authors.lastname: Lee
mesh_terms: D000284:Administration, Oral; D000818:Animals; D002460:Cell Line; D005260:Female; D006801:Humans; D048191:Lactiplantibacillus plantarum; D020781:Matrix Metalloproteinase 1 / Q000378:metabolism; D051379:Mice; D008812:Mice, Hairless; D019936:Probiotics / Q000008:administration & dosage* / Q000494:pharmacology*; D011347:Procollagen / Q000378:metabolism; D015595:Skin Aging / Q000187:drug effects* / Q000528:radiation effects; D014466:Ultraviolet Rays / Q000009:adverse effects*
chemical_list: D011347:Procollagen; D020781:Matrix Metalloproteinase 1