| Appraisal of the antichemotactic activity of flavonoids on polymorphonuclear neutrophils. | |
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MedLine Citation:
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PMID: 21058242 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Flavonoids are polyphenols that are ubiquitous in plants and frequently consumed in the diet. They are suggested to have many beneficial actions on human health, including anti-inflammatory activity. Their properties have been studied in a number of cell types, but little is known about their effects on neutrophil biology. Consequently, we selected 25 flavonoids with different structural features to evaluate their IN VITRO inhibition of rat polymorphonuclear neutrophil (PMN) chemotaxis, employing a modified Boyden chamber. Migratory activity was measured towards a chemotactic stimulant, formyl-Met-Leu-Phe or lipopolysaccharide. Furthermore, the cytotoxic effect of flavonoids on PMNs was determined by the release of cytosolic lactate dehydrogenase (LDH). Ten flavonoids significantly retarded the migration of PMNs with at least one of the concentrations tested in a range between 0.625 and 100 µM; the best antichemotactic agents were flavone, flavonol, quercetin and rutin. None of the flavanones evaluated presented any significant inhibition of migration in this assay. Our findings indicated that non-hydroxylated flavones possess a better antichemotactic activity when compared to flavones with hydroxy groups. The presence of a sugar moiety in rutin did not produce any increase in this effect, when compared to the respective aglycone analogue. Finally, none of the flavonoids exhibited cell toxicity and for many of these flavonoids this is the first report of the inhibition of PMN chemotaxis. |
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Authors:
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Edna Sayuri Suyenaga; Eduardo Luis Konrath; Roger Remy Dresch; Miriam Anders Apel; José Angelo Zuanazzi; Célia Gervásio Chaves; Amélia Teresinha Henriques |
Publication Detail:
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Type: Journal Article Date: 2010-11-05 |
Journal Detail:
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Title: Planta medica Volume: 77 ISSN: 1439-0221 ISO Abbreviation: Planta Med. Publication Date: 2011 May |
Date Detail:
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Created Date: 2011-05-09 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0066751 Medline TA: Planta Med Country: Germany |
Other Details:
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Languages: eng Pagination: 698-704 Citation Subset: IM |
Copyright Information:
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© Georg Thieme Verlag KG Stuttgart · New York. |
Affiliation:
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Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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