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Inhibition effect of Gynura procumbens extract on UV-B-induced matrix-metalloproteinase expression in human dermal fibroblasts.
Kim, Junoh; Lee, Chan-Woo; Kim, Eun Kyung; Lee, Su-Jin; Park, Nok-Hyun; Kim, Han-Sung; Kim, Han-Kon; Char, Kookheon; Jang, Young Pyo; Kim, Jin-Woong.
Afiliación
  • Kim J; Amore-Pacific Co. R&D Center, 314-1, Bora-dong, Giheung-gu, Yongin-si, Gyeonggi-Do 446-729, Republic of Korea.
J Ethnopharmacol ; 137(1): 427-33, 2011 Sep 01.
Article en En | MEDLINE | ID: mdl-21672616
ETHNOPHARMACOLOGICAL RELEVANCE: Gynura procumbens Merr. (Asteraceae) has been used as a traditional remedy for various skin diseases in certain areas of Southeast Asia. AIM OF THE STUDY: In order to evaluate the protective activity of Gynura procumbens extract on skin photoaging and elucidate its mode of action. MATERIALS AND METHODS: Matrix-metalloproteinase (MMP)-1 and -9 expressions were induced by UV-B irradiation in human primary dermal fibroblasts. MMP-1 expression level was measured by enzyme-linked immunosorbent assay (ELISA) and Western blot analysis. Zymography was employed for evaluating the enzymatic activity of MMP-9. Anti-inflammatory activity and anti-oxidative capacity of the extract were evaluated by ELISA and dichlorodihydrofluorescein diacetate (DCF-DA) assay. RESULTS: The ethanolic extract of Gynura procumbens inhibited MMP-1 expression up to 70% compare to negative control group. The enzymatic activity of MMP-9 was inhibited around 73% by the treatment of 20µg/mL of the extract. The extract markedly reduced the production of reactive oxygen species (ROS). Gynura procumbens extract showed an inhibitory effect on releasing pro-inflammatory cytokines (IL-6 and IL-8) in human HaCat keratinocyte. CONCLUSION: The ethanolic extract of Gynura procumbens inhibited MMP-1 and MMP-9 expressions induced by UV-B irradiation via inhibition of pro-inflammatory cytokine mediator release and ROS production.
Asunto(s)

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Rayos Ultravioleta / Extractos Vegetales / Envejecimiento de la Piel / Asteraceae / Dermis / Metaloproteinasa 9 de la Matriz / Metaloproteinasa 1 de la Matriz / Fármacos Dermatológicos / Fibroblastos Límite: Humans Idioma: En Revista: J Ethnopharmacol Año: 2011 Tipo del documento: Article Pais de publicación: Irlanda

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Rayos Ultravioleta / Extractos Vegetales / Envejecimiento de la Piel / Asteraceae / Dermis / Metaloproteinasa 9 de la Matriz / Metaloproteinasa 1 de la Matriz / Fármacos Dermatológicos / Fibroblastos Límite: Humans Idioma: En Revista: J Ethnopharmacol Año: 2011 Tipo del documento: Article Pais de publicación: Irlanda