Inflammatory Cytokine Expression and Sebum Production after Exposure of Cultured Human Sebocytes to Ultraviolet A Radiation and Light at Wavelengths of 650 nm and 830 nm.
- Author:
Weon Ju LEE
1
;
Soo Yuhl CHAE
;
Hyo Sub RYU
;
Yong Hyun JANG
;
Seok Jong LEE
;
Do Won KIM
Author Information
- Publication Type:Original Article
- Keywords: Inflammatory cytokines; Infrared light; Sebocytes; Ultraviolet A; Visible light
- MeSH: Acne Vulgaris; Biomarkers; Cytokines; Gene Expression; Humans; Immunoassay; Interleukin-6; Interleukin-8; Light; Matrix Metalloproteinases; Necrosis; Peptides; Phototherapy; Polymerase Chain Reaction; Propionibacterium acnes; Reverse Transcription; Sebum*
- From:Annals of Dermatology 2015;27(2):163-170
- CountryRepublic of Korea
- Language:English
- Abstract: BACKGROUND: The effectiveness of ultraviolet (UV) radiation, visible light, or infrared light therapy for the treatment of acne is the subject of ongoing scientific debate. OBJECTIVE: This study was conducted to investigate changes in sebum production and the expression of inflammatory cytokines, matrix metalloproteinases (MMPs), and antimicrobial peptides (AMPs), following exposure of cultured human sebocytes to UVA radiation and light at wavelengths of 650 nm and 830 nm. METHODS: Reverse transcription polymerase chain reaction assays were performed to measure the gene expression levels of inflammatory cytokines (interleukin [IL]-1beta, IL-6, IL-8, and tumor necrosis factor-alpha), MMPs (MMP-1, MMP-3, and MMP-9), and AMPs (psoriasin, hBD-2, hBD-3, and LL-37) in cultured sebocytes after exposure to UVA radiation (2 J/cm2, 3 J/cm2, and 5 J/cm2) and light at wavelengths of 650 nm (14 J/cm2, 29 J/cm2, and 87 J/cm2) and 830 nm (5 J/cm2, 10 J/cm2, and 30 J/cm2). Expression of inflammatory cytokine proteins and sebum production were measured using enzyme-linked immunoassays and a lipid analysis kit, respectively. RESULTS: Exposure of cultured sebocytes to UVA radiation and light at wavelengths of 650 nm and 830 nm did not show a significant increase in the expression of inflammatory cytokines, MMPs, or AMPs. Sebum production was not significantly decreased after exposure to UVA radiation and light at both wavelengths. CONCLUSION: We propose that UVA radiation, visible light, and infrared light can be used to target Propionibacterium acnes for the treatment of acne, without an increase in the expression of inflammatory biomarkers and sebum production.
