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Pefloxacin and ciprofloxacin increase UVA‐induced edema and immune suppression
Author(s) -
Sun Young Woo,
Heo Eun Phil,
Cho Yoon Hyang,
Bark KiMin,
Yoon Tae Jin,
Kim Tae Heung
Publication year - 2001
Publication title -
photodermatology, photoimmunology and photomedicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.736
H-Index - 60
eISSN - 1600-0781
pISSN - 0905-4383
DOI - 10.1034/j.1600-0781.2001.170406.x
Subject(s) - pefloxacin , sunburn , phototoxicity , antibiotics , quinolone , pharmacology , immune system , medicine , ciprofloxacin , immunology , chemistry , dermatology , microbiology and biotechnology , biology , ofloxacin , biochemistry , in vitro
Background: Quinolone antibiotics are popularly prescribed antibiotics because of their wide antibacterial spectrum and lowered bacterial resistance. Quinolone antibiotics are one of the well‐known photosensitizers that induce phototoxicity. Their role in photocarcinogenesis has been suggested in some studies. Material and methods: Mice were treated with two quinolone antibiotics (ciprofloxacin, which is less phototoxic, and pefloxacin, which is more phototoxic) to study the effect of the antibiotics on sunburn and immune suppression by ultraviolet A (UVA) irradiation. The effects of a combined treatment with UVA and these quinolone antibiotics were measured on back skin swellings, sunburn cell formations, depletion of epidermal Langerhans cells, and local and systemic suppression of contact hypersensitivity. Results: Mice treated with both UVA and quinolone showed significantly increased back skin swellings and decreased epidermal Langerhans cells than mice treated with UVA only. Sunburn cells were increased significantly in mice treated with pefloxacin and 50 J/cm 2 of UVA. Combination of pefloxacin and UVA suppressed local contact hypersensitivity significantly, but not systemic contact hypersensitivity. Conclusion: Phototoxic quinolones augmented the effect of UVA by increasing sunburn and apoptosis, depleting Langerhans cells and suppressing local immune response. By affecting apoptosis and immune suppression, they may facilitate photocarcinogenesis caused by UVA.