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Kusumaningrum N, Oh JH, Lee DH, Shin CY, Jang JH, Kim YK, Chung JH. Topical treatment with a cathepsin G inhibitor, β-keto-phosphonic acid, blocks ultraviolet irradiation-induced basement membrane damage in hairless mouse skin. Photodermatol Photoimmunol Photomed 2018; 35:148-156. [PMID: 30414203 DOI: 10.1111/phpp.12438] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 10/19/2018] [Accepted: 11/04/2018] [Indexed: 12/20/2022]
Abstract
BACKGROUND Ultraviolet light (UV) exposure contributes various effects to skin including damage of the basement membrane. Cathepsin G (CTSG) belongs to serine protease family, and its upregulation is involved in wrinkle formation by chronic UV irradiation. However, the effect of CTSG on the basement membrane damage in skin remains unclear. PURPOSE To investigate the effects of topical treatment with a CTSG inhibitor, β-keto-phosphonic acid (KPA), on basement membrane damage in chronically UV-irradiated hairless mouse skin. METHODS The dorsal skin of hairless mice was exposed to UV three times per week for 8 weeks. KPA was applied immediately after each session of UV irradiation. The basement membrane components, CTSG expression, and neutrophil infiltration were analyzed by immunofluorescence staining. The basement membrane structures were visualized by transmission electron microscope. CTSG and MMP-13 protein levels were analyzed by Western blotting. Assessment of wrinkle formation was examined using a skin replica assay. RESULTS β-keto-phosphonic acid prevented UV irradiation-induced decrease in type VII collagen, laminin 332, and perlecan at the basement membrane zone and prevented UV-induced breakage of lamina densa and UV-induced shortening of hemidesmosome. KPA prevented UV-induced CTSG and MMP-13 expressions in chronically UV-irradiated hairless mice. Increase in neutrophil infiltration by UV irradiation and UV-induced wrinkle formation was also prevented by KPA. CONCLUSION 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.
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Affiliation(s)
- Novi Kusumaningrum
- Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, Korea.,Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea.,Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Seoul, Korea
| | - Jang-Hee Oh
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea.,Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Seoul, Korea
| | - Dong Hun Lee
- Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, Korea.,Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea.,Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Seoul, Korea
| | - Chang-Yup Shin
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea.,Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Seoul, Korea
| | - Jee-Hee Jang
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea.,Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Seoul, Korea
| | - Yeon Kyung Kim
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea.,Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Seoul, Korea
| | - Jin Ho Chung
- Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, Korea.,Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea.,Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Seoul, Korea.,Institute on Aging, Seoul National University, Seoul, Korea
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Taguchi H, Tanaka H, Hashizaki K, Saito Y, Fujii M. Application of Pickering Emulsion with Cyclodextrin as an Emulsifier to a Transdermal Drug Delivery Vehicle. Biol Pharm Bull 2018; 42:116-122. [PMID: 30369530 DOI: 10.1248/bpb.b18-00711] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The emulsion prepared with β-cyclodextrin as an emulsifier (βCDE) is considered to be a Pickering emulsion. We examined the characteristics of βCDEs using captopril (CP) as a model drug, and studied the in vitro skin permeation of CP from βCDEs through hairless mouse skin. The stability of βCDE was increased with increasing βCD concentration and conversely decreased with increasing CP concentration. The yield stress value from the rheological measurement results was suggested to be one of the factors determining the stability of the βCDE, and βCDEs with higher yield stress values were more stable. We found that the skin permeability of CP could be improved by using βCDE with isopropyl myristate as the oil phase and that the flux of CP depended on the free CP concentration in the water phase of βCDE.
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