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RESEARCH ON PRODUCTION AND VALORIZATION OF MEAGRE (Argyrosomus regius) IN PORTUGAL
Pedro Pousao-Ferreira,Laura Ribeiro,Ana Candeias-Mendes,Margarida Gamboa,Sara Castanho,Marisa Barata,Hugo Quental-Ferreira,Maria Emilia Cunha,Florbela Soares,Sara Costa,Margarida Saavedra,Margarida Sa 한국수산과학회 양식분과 2015 한국수산과학회 양식분과 학술대회 Vol.2015 No.5
Douglas Bardini Silveira,Álvaro José Celmer,Carla Maísa Camelini,Márcio José Rossi,José Carlos Cunha Petrus,Margarida Matos de Mendonça,Aguinaldo Roberto Pinto,Carlos Roberto Zanetti 한국생물공학회 2012 Biotechnology and Bioprocess Engineering Vol.17 No.4
Membrane technology has been applied to separate polysaccharides from Agaricus subrufescens (ASPs). The membrane-retained fractions and unfractionated preparations have been tested for in vitro immunological activity. Both the microfiltration (MF) and ultrafiltration (UF1) membranes were able to separate high-molecular weight polysaccharides from fruiting body (ASP-FB) and submerge-fermented mycelium (ASP-SmF) extracts. All fractions showed immunostimulatory effects on RAW 264.7macrophages, measured by TNF-α, iNOs gene expression,and NO production. In contrast, antibody and proliferation levels in B lymphoblastoid SKW 6.4 cells were significantly increased after treatment with ASP-FB, but did not with ASP-SmF preparations. The ASPs- and LPS-induced stimulation could be differentiated by the finding that polymyxin B, a specific inhibitor of LPS, did not significantly affect the immunoactivating response and proliferation activity of ASPs on macrophages and B cells, respectively. Furthermore, the ASP-FB treatment was unable to induce IL-6 production by B cells unlike LPS activation, sustaining distinct signaling pathways for ASP-FB and LPS. The overall results provided additional information about the action of ASPs on the immune system and support the membrane method to separate and concentrate highmolecular weight ASPs for immunopharmacological and biotechnological applications.