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J Nat Prod. 2015 Jul 24;78(7):1647-55. doi: 10.1021/acs.jnatprod.5b00198. Epub 2015 Jul 8.

Naringenin Inhibits UVB Irradiation-Induced Inflammation and Oxidative Stress in the Skin of Hairless Mice.

Author information

1
†Departamento de Ciências Farmacêuticas and ⊥Departamento de Patologia, Análises Clínicas e Toxicológicas, Universidade Estadual de Londrina-UEL, Avenida Robert Koch, 60, Hospital Universitário, 86039-440 Londrina, Paraná, Brazil.
2
‡Departamento de Ciências Patológicas and §Departamento de Bioquímica e Biotecnologia, Universidade Estadual de Londrina-UEL, Rodovia Celso Garcia Cid, Km 380, PR445, Cx. Postal 10.011, 86057-970 Londrina, Paraná, Brazil.

Abstract

Ultraviolet B (UVB) irradiation may cause inflammation- and oxidative-stress-dependent skin cancer and premature aging. Naringenin (1) has been reported to have anti-inflammatory and antioxidant properties, but its effects and mechanisms on UVB irradiation-induced inflammation and oxidative stress are still not known. Thus, the present study aimed to investigate the potential of naringenin to mitigate UVB irradiation-induced inflammation and oxidative damage in the skin of hairless mice. Skin edema, myeloperoxidase (neutrophil marker) and matrix metalloproteinase-9 (MMP-9) activity, and cytokine production were measured after UVB irradiation. Oxidative stress was evaluated by 2,2'-azinobis(3-ethylbenzothiazoline-6-sulfonic acid) radical (ABTS) scavenging ability, ferric reducing antioxidant power (FRAP), reduced glutathione levels, catalase activity, lipid peroxidation products, superoxide anion production, and gp91phox (NADPH oxidase subunit) mRNA expression by quantitative PCR. The intraperitoneal treatment with naringenin reduced skin inflammation by inhibiting skin edema, neutrophil recruitment, MMP-9 activity, and pro-inflammatory (TNF-α, IFN-γ, IL-1β, IL-4, IL-5, IL-6, IL-12, IL-13, IL-17, IL-22, and IL-23) and anti-inflammatory (TGF-β and IL-10) cytokines. Naringenin also inhibited oxidative stress by reducing superoxide anion production and the mRNA expression of gp91phox. Therefore, naringenin inhibits UVB irradiation-induced skin damage and may be a promising therapeutic approach to control skin disease.

PMID:
26154512
DOI:
10.1021/acs.jnatprod.5b00198
[Indexed for MEDLINE]

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