TY - JOUR
T1 - Trans-chalcone added in topical formulation inhibits skin inflammation and oxidative stress in a model of ultraviolet B radiation skin damage in hairless mice
AU - Martinez, Renata M.
AU - Pinho-Ribeiro, Felipe A.
AU - Vale, David L.
AU - Steffen, Vinicius S.
AU - Vicentini, Fabiana T.M.C.
AU - Vignoli, Josiane A.
AU - Baracat, Marcela M.
AU - Georgetti, Sandra R.
AU - Verri, Waldiceu A.
AU - Casagrande, Rubia
N1 - Funding Information:
This work was supported by Brazilian grants from Coordenadoria de Aperfeiçoamento de Pessoal de Nível Superior (CAPES), Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Ministério da Ciência, Tecnologia e Inovação (MCTI), Secretaria da Ciência, Tecnologia e Ensino Superior (SETI), Fundação Araucária and Governo do Estado do Paraná. We thank Marcelo Tempesta Oliveira, Denise Duarte and Cristina Aparecida Lopes for their technical support to this research. StepOnePlus TM Real-Time PCR System (Applied Biosystems®) was purchased by FINEP funding (CT-INFRA 01/2013).
Publisher Copyright:
© 2017 Elsevier B.V.
PY - 2017/6/1
Y1 - 2017/6/1
N2 - Trans-chalcone (TC) is a common precursor of flavonoids. However, the pharmacological properties of TC remain to be fully understood. The present study investigated whether topical formulation containing TC (TFcTC) presents therapeutic effect in UVB radiation-induced skin damage using disease, enzyme activity, antioxidant activity, protein and mRNA parameters. Control topical formulation (CTF) and TFcTC were applied in hairless mice before and after exposure to UVB radiation. Dorsal skin samples were collected after UVB exposure to evaluate: i) skin edema (weight) was measured by punch biopsy; ii) spectrophotometric assays were used to measure myeloperoxidase (MPO) and catalase activities, ferric (FRAP) and ABTS cation reducing antioxidant power, superoxide anion production and levels of reduced glutathione (GSH); iii) enzymography was used to measure matrix metalloproteinase-9 (MMP-9) activity; iv) chemiluminescence was used to measure the lipid peroxidation (LPO); v) enzyme-linked immunosorbent assay (ELISA) was used to measure tumor necrosis factor alpha (TNF-α) levels; vi) reverse transcription quantitative PCR (RT-qPCR) was used to measure cyclooxygenase-2 (COX-2), gp91phox (NADPH oxidase sub-unity), glutathione peroxidase-1 (Gpx1), glutathione reductase (Gr), nuclear factor erythroid 2-related factor 2 (Nrf2), and heme oxygenase-1 (HO-1) mRNA expression. TFcTC inhibited UVB-induced skin edema, MPO activity, MMP-9 activity, TNF-α production, and COX-2 mRNA expression. TFcTC inhibited UVB-induced LPO, down-regulated superoxide anion levels and gp91phox mRNA expression, and improved antioxidant potential and GSH skin levels. The mRNA expression of detoxification systems such as Nrf2, HO-1, Gpx1 and Gr, and catalase activity were also enhanced by treatment with TFcTC. In conclusion, TFcTC protects mice skin from UVB radiation by inhibiting inflammation, and improving antioxidant and detoxification systems. Therefore, topical treatment with TC is a novel therapeutic approach for the treatment of UVB radiation skin damages, which merits further pre-clinical and clinical investigation.
AB - Trans-chalcone (TC) is a common precursor of flavonoids. However, the pharmacological properties of TC remain to be fully understood. The present study investigated whether topical formulation containing TC (TFcTC) presents therapeutic effect in UVB radiation-induced skin damage using disease, enzyme activity, antioxidant activity, protein and mRNA parameters. Control topical formulation (CTF) and TFcTC were applied in hairless mice before and after exposure to UVB radiation. Dorsal skin samples were collected after UVB exposure to evaluate: i) skin edema (weight) was measured by punch biopsy; ii) spectrophotometric assays were used to measure myeloperoxidase (MPO) and catalase activities, ferric (FRAP) and ABTS cation reducing antioxidant power, superoxide anion production and levels of reduced glutathione (GSH); iii) enzymography was used to measure matrix metalloproteinase-9 (MMP-9) activity; iv) chemiluminescence was used to measure the lipid peroxidation (LPO); v) enzyme-linked immunosorbent assay (ELISA) was used to measure tumor necrosis factor alpha (TNF-α) levels; vi) reverse transcription quantitative PCR (RT-qPCR) was used to measure cyclooxygenase-2 (COX-2), gp91phox (NADPH oxidase sub-unity), glutathione peroxidase-1 (Gpx1), glutathione reductase (Gr), nuclear factor erythroid 2-related factor 2 (Nrf2), and heme oxygenase-1 (HO-1) mRNA expression. TFcTC inhibited UVB-induced skin edema, MPO activity, MMP-9 activity, TNF-α production, and COX-2 mRNA expression. TFcTC inhibited UVB-induced LPO, down-regulated superoxide anion levels and gp91phox mRNA expression, and improved antioxidant potential and GSH skin levels. The mRNA expression of detoxification systems such as Nrf2, HO-1, Gpx1 and Gr, and catalase activity were also enhanced by treatment with TFcTC. In conclusion, TFcTC protects mice skin from UVB radiation by inhibiting inflammation, and improving antioxidant and detoxification systems. Therefore, topical treatment with TC is a novel therapeutic approach for the treatment of UVB radiation skin damages, which merits further pre-clinical and clinical investigation.
KW - Antioxidant
KW - Cytokine
KW - Formulation
KW - Nrf2
KW - Trans-chalcone
KW - UVB
UR - http://www.scopus.com/inward/record.url?scp=85019104946&partnerID=8YFLogxK
U2 - 10.1016/j.jphotobiol.2017.05.002
DO - 10.1016/j.jphotobiol.2017.05.002
M3 - Article
C2 - 28501692
AN - SCOPUS:85019104946
SN - 1011-1344
VL - 171
SP - 139
EP - 146
JO - Journal of Photochemistry and Photobiology B: Biology
JF - Journal of Photochemistry and Photobiology B: Biology
ER -