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Molecules 2009, 14(3), 1062-1071; doi:10.3390/molecules14031062

Taiwanese Native Plants Inhibit Matrix Metalloproteinase-9 Activity after Ultraviolet B Irradiation

1, 2, 3, 4, 5, 6 and 1, 4, 7,*
1 Department of Microbiology and Immunology, Taipei Medical University, Taipei, Taiwan 2 Graduate Institute of Pharmacognosy, Taipei Medical University, Taipei, Taiwan 3 School of Nursing, Taipei Medical University, Taipei Taiwan 4 Graduate Institute of Cell and Molecular Biology, Taipei Medical University, Taipei, Taiwan 5 Applied Bioscience Division, Taiwan Sugar Research Institute, Tainan, Taiwan 6 Department of Biochemistry, Taipei Medical University, Taipei, Taiwan 7 Center for Reproductive Medicine and Sciences, Taipei Medical University Hospital, Taipei, Taiwan
* Author to whom correspondence should be addressed.
Received: 27 November 2008 / Revised: 3 March 2009 / Accepted: 5 March 2009 / Published: 6 March 2009
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Medicinal plants have long been used as a source of therapeutic agents. They are thought to be important anti-aging ingredients in prophylactic medicines. The aim of this study was to screen extracts from Taiwanese plant materials for phenolic contents and measure the corresponding matrix metalloproteinase-9 (MMP-9) activity. We extracted biological ingredients from eight plants native to Taiwan (Alnus formosana, Diospyros discolor, Eriobotrya deflex, Machilus japonica, Pyrrosia polydactylis, Pyrus taiwanensis, Vitis adstricta, Vitis thunbergii). Total phenolic content was measured using the Folin-Ciocalteu method. MMP-9 activities were measured by gelatin zymography. The extracted yields of plants ranged from 3.7 % to 16.9 %. The total phenolic contents ranged from 25.4 to 36.8 mg GAE/g dry material. All of these extracts (except Vitis adstricta Hance) were shown to inhibit MMP-9 activity of WS-1 cell after ultraviolet B irradiation. These findings suggest that total phenolic content may influence MMP-9 activity and that some of the plants with higher phenolic content exhibited various biological activities that could serve as potent inhibitors of the ageing process in the skin. This property might be useful in the production of cosmetics.
Keywords: Taiwanese native plant; Polyphenolic; Matrix metalloproteinase-9 Taiwanese native plant; Polyphenolic; Matrix metalloproteinase-9
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Lee, Y.-L.; Lee, M.-H.; Chang, H.-J.; Huang, P.-Y.; Huang, I.-J.; Cheng, K.-T.; Leu, S.-J. Taiwanese Native Plants Inhibit Matrix Metalloproteinase-9 Activity after Ultraviolet B Irradiation. Molecules 2009, 14, 1062-1071.

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