RT Journal Article T1 Antioxidant, Immunomodulatory and Potential Anticancer Capacity of Polysaccharides (Glucans) from Euglena gracilis G.A. Klebs A1 Casas-Arrojo, Virginia A1 Arrojo Agudo, Maria de Los Angeles A1 Cardenas Garcia, Casimiro A1 Carrillo, Paloma A1 Perez Manriquez, Claudia A1 Martinez-Manzanares, Eduardo A1 Abdala Diaz, Roberto T. K1 euglena gracilis K1 polysaccharides K1 immunomodulatory capacity K1 antioxidant activity K1 anticancer capacity and nutraceuticals K1 heterotrophic cultivation K1 sulfated polysaccharides K1 marine polysaccharides K1 beta-glucan K1 microalgae K1 paramylon K1 growth K1 beta-1,3-glucan K1 alpha K1 algae AB The present study was carried out to determine the bioactivity of polysaccharides extracted from Euglena gracilis (EgPs). These were characterized by FT-IR and GC-MS. Cytotoxicity analyses (MTT) were performed on healthy human gingival fibroblast cell lines (HGF-1), obtaining an IC50 of 228.66 mu g mL(-1), and cell lines with anticancer activity for colon cancer (HCT-116), breast cancer (MCF-7), human leukemia (U-937, HL-60) and lung cancer (NCI-H460), showing that EgPs have anticancer activity, mainly in HTC-116 cells (IC50 = 26.1 mu g mL(-1)). The immunological assay determined the immunomodulatory capacity of polysaccharides for the production of proinflammatory cytokines IL-6 and TNF-alpha in murine macrophages (RAW 264.7) and TNF-alpha in human monocytes (THP-1). It was observed that the EgPs had a stimulating capacity in the synthesis of these interleukins. The antioxidant capacity of polysaccharides and their biomass were analyzed using the ABTS method (18.30 +/- 0.14% and (5.40 +/- 0.56%, respectively, and the DPPH method for biomass (17.79 +/- 0.57%). We quantitatively profiled HGF-1 proteins by liquid chromatography-tandem mass spectrometry analysis, coupled with 2-plex tandem mass tag labelling, in normal cells. In total, 1346 proteins were identified and quantified with high confidence, of which five were considered to be overexpressed. The data is available through ProteomeXchange, under identifier PXD029076. PB MDPI YR 2022 FD 2022-11-02 LK http://hdl.handle.net/10668/21537 UL http://hdl.handle.net/10668/21537 LA en NO Casas-Arrojo V, Arrojo Agudo MLÁ, Cárdenas García C, Carrillo P, Pérez Manríquez C, Martínez-Manzanares E, et al. Antioxidant, Immunomodulatory and Potential Anticancer Capacity of Polysaccharides (Glucans) from Euglena gracilis G.A. Klebs. Pharmaceuticals (Basel). 2022 Nov 10;15(11):1379 DS RISalud RD Apr 7, 2025