Document Detail

The effects of Sophora angustifolia and other natural plant extracts on melanogenesis and melanin transfer in human skin cells.
MedLine Citation:
PMID:  23278898     Owner:  NLM     Status:  In-Data-Review    
Skin pigmentation is a multistep process of melanin synthesis by melanocytes, its transfer to recipient keratinocytes and its degradation. As dyspigmentation is a prominent marker of skin ageing, novel effective agents that modulate pigmentation safely are being sought for both clinical and cosmetic use. Here, a number of plant extracts were examined for their effect on melanogenesis (by melanin assay and Western blotting) and melanin transfer (by confocal immunomicroscopy of gp100-positive melanin granules in cocultures and by SEM analysis of filopodia), in human melanocytes and in cocultures with phototype-matched normal adult epidermal keratinocytes. Mulberry, Kiwi and Sophora extracts were assessed against isobutylmethylxanthine, hydroquinone, vitamin C and niacinamide. Compared with unstimulated control, all extracts significantly reduced melanogenesis in human melanoma cells and normal adult epidermal melanocytes. These extracts also reduced melanin transfer and reduced filopodia expression on melanocytes, similar to hydroquinone and niacinamide, indicating their effectiveness as multimode pigmentation actives.
Suman K Singh; Richard Baker; Judata I D Wibawa; Mike Bell; Desmond J Tobin
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Publication Detail:
Type:  Letter    
Journal Detail:
Title:  Experimental dermatology     Volume:  22     ISSN:  1600-0625     ISO Abbreviation:  Exp. Dermatol.     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-01-02     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9301549     Medline TA:  Exp Dermatol     Country:  Denmark    
Other Details:
Languages:  eng     Pagination:  67-9     Citation Subset:  IM    
Copyright Information:
© 2013 John Wiley & Sons A/S.
Centre for Skin Sciences, School of Life Sciences, University of Bradford, Bradford, West Yorkshire, UK.
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