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Anti‐inflammatory and immunomodulatory activities of polysaccharide from Chlorella stigmatophora and Phaeodactylum tricornutum
Author(s) -
Guzmán S.,
Gato A.,
Lamela M.,
FreireGarabal M.,
Calleja J. M.
Publication year - 2003
Publication title -
phytotherapy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.019
H-Index - 129
eISSN - 1099-1573
pISSN - 0951-418X
DOI - 10.1002/ptr.1227
Subject(s) - phaeodactylum tricornutum , polysaccharide , carrageenan , chlorella , size exclusion chromatography , chromatography , chemistry , biochemistry , in vivo , fractionation , biology , botany , algae , enzyme , microbiology and biotechnology
Abstract Crude polysaccharide extracts were obtained from aqueous extracts of the microalgae Chlorella stigmatophora and Phaeodactylum tricornutum . The crude extracts were fractionated by ion‐exchange chromatography on DEAE‐cellulose columns. The molecular weights of the polysaccharides in each fraction were estimated by gel filtration on Sephacryl columns. The crude polysaccharide extracts of both microalgae showed anti‐inflammatory activity in the carrageenan‐induced paw edema test. In assays of effects on the delayed hyper‐sensitivity response, and on phagocytic activity assayed in vivo and in vitro , the C. stigmatophora extract showed immunosuppressant effects, while the P. tricornutum extract showed immunostimulatory effects. Copyright © 2003 John Wiley & Sons, Ltd.