Document Detail


Anticlastogenic effect of β-glucan, extracted from Saccharomyces cerevisiae, on cultured cells exposed to ultraviolet radiation.
MedLine Citation:
PMID:  22684537     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
β-glucan is an important polysaccharide due to its medicinal properties of stimulating the immune system and preventing chronic diseases such as cancer. The aim of the present study was to determine the anticlastogenic effect of β-glucan in cells exposed to ultraviolet radiation (UV). Chromosome aberration assay was performed in drug-metabolizing cells (HTC) and non drug-metabolizing cells (CHO-K1 and repair-deficient CHO-xrs5), using different treatment protocols. Continuous treatment (UV + β-glucan) was not effective in reducing the DNA damage only in CHO-xrs5 cells. However, the pre-treatment protocol (β-glucan before UV exposition) was effective in reducing DNA damage only in CHO-K1 cells. In post-treatment (β-glucan after UV exposition) did not show significative anticlastogenic effects, although there was a tendency toward prevention. The data suggest that β-glucan has more than one action mechanism, being capable of exerting desmutagenic as well as bio-antimutagenic action. The findings also suggest that the presence of the xenobiotic metabolizing system can reduce the chemopreventive capacity of β-glucan. Therefore, these results indicate that β-glucan from Saccharomyces cerevisiae can be used in the prevention and/or reduction of DNA damage.
Authors:
Ariane Fernanda da Silva; Rodrigo Juliano Oliveira; Andressa Megumi Niwa; Gláucia Fernanda Rocha D'Epiro; Lúcia Regina Ribeiro; Mário Sérgio Mantovani
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Publication Detail:
Type:  Journal Article     Date:  2012-06-09
Journal Detail:
Title:  Cytotechnology     Volume:  65     ISSN:  0920-9069     ISO Abbreviation:  Cytotechnology     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-01-04     Completed Date:  2013-01-07     Revised Date:  2014-01-01    
Medline Journal Info:
Nlm Unique ID:  8807027     Medline TA:  Cytotechnology     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  41-8     Citation Subset:  -    
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