Document Detail


Effect of resveratrol and zinc on intracellular zinc status in normal human prostate epithelial cells.
MedLine Citation:
PMID:  19553565     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
To evaluate the influence of resveratrol on cellular zinc status, normal human prostate epithelial (NHPrE) cells were treated with resveratrol (0, 0.5, 1, 2.5, 5, and 10 microM) and zinc [0, 4, 16, and 32 microM, representing zinc-deficient (ZD), zinc-normal (ZN), zinc-adequate (ZA), and zinc-supplemented (ZS) conditions, respectively]. A progressive reduction in cell growth was observed in cells treated with increasing amounts of resveratrol (2.5-10 microM). Resveratrol at 5 and 10 microM resulted in a dramatic increase in cellular total zinc concentration, especially in ZS cells. Flow cytometry indicated that 10 microM resveratrol induced arrest of the cell cycle at the G(2)/M phase in association with the observed cell growth inhibition. Data from an in vitro experiment using zinquin as an indicator of intracellular free Zn(II) status demonstrated complex interactions between resveratrol and Zn(II). Fluorescence spectrofluorometry and fluorescence microscopic analyses revealed that intracellular free labile zinc was progressively elevated from nearly twofold in ZS cells with no resveratrol to multifold in ZA and ZS cells with 10 microM resveratrol compared with the corresponding ZN cells. Furthermore, increases in cellular zinc status were associated with elevated levels of reactive oxygen species and senescence, as evidenced by morphological and histochemical changes in cells treated with 2.5 or 10 microM resveratrol, especially in ZA and ZS cells. Taken together, the interaction between resveratrol and zinc in NHPrE cells increases total cellular zinc and intracellular free labile zinc status and, subsequently, reactive oxygen species production and senescence.
Authors:
Jun Jun Zhang; Min Wu; Norberta W Schoene; Wen-Hsing Cheng; Thomas T Y Wang; Ali A Alshatwi; Mohammed Alsaif; Kai Y Lei
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.     Date:  2009-06-24
Journal Detail:
Title:  American journal of physiology. Cell physiology     Volume:  297     ISSN:  1522-1563     ISO Abbreviation:  Am. J. Physiol., Cell Physiol.     Publication Date:  2009 Sep 
Date Detail:
Created Date:  2009-09-07     Completed Date:  2009-10-05     Revised Date:  2013-06-03    
Medline Journal Info:
Nlm Unique ID:  100901225     Medline TA:  Am J Physiol Cell Physiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  C632-44     Citation Subset:  IM    
Affiliation:
Dept. of Nutrition and Food Science, Univ. of Maryland, College Park, MD 20742, USA.
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MeSH Terms
Descriptor/Qualifier:
Adult
Cell Proliferation / drug effects
Cells, Cultured
Dose-Response Relationship, Drug
Epithelial Cells / cytology*,  drug effects*,  metabolism
Humans
Male
Prostate / cytology*,  drug effects
Stilbenes / pharmacology*
Young Adult
Zinc / metabolism,  pharmacology*
Chemical
Reg. No./Substance:
0/Stilbenes; 7440-66-6/Zinc; Q369O8926L/resveratrol

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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