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Physicochemical Characterization and Biological Evaluation of Agaricus subrufescens Polysaccharides in Human Blood Cells

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Abstract

The present work aimed to isolate and characterize the polysaccharides from Agaricus subrufescens Peck (1893), Agaricaceae, and subsequently evaluate their cytocompatibility against human cells. The structural characterization showed glucans associated with protein fractions and nucleic acids. However, through NMR and GC-FID, it was estimated that the polysaccharides possess glucose, galactose and mannose as main monosaccharides, respectively. The cytocompatibility study was conducted using red blood cells, platelets and neutrophils of human origin. In a range of 1 to 200 µg/ml, these polysaccharides showed hemolytic index lower than 2%, which was not considered toxic, as well as lower toxicity against human platelets and human neutrophils. In addition, polysaccharides from A. subrufescens were able to modulate neutrophils activation induced by PMA according to the concentrations range, reducing its inflammatory mechanisms (1 and 10 µg/ml) or amplifying them (50 to 200 µg/ml). Therefore, polysaccharides from A. subrufescens are promising biopolymers for the development of pharmaceutical dosage forms for drug delivery, being able to reduce the pro-inflammatory mechanisms of human neutrophils according to the concentration range while not displaying toxic effects on human blood cells.

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Data Availability

All the relevant data are reported within the paper. For additional details, data are available on request to the authors.

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Acknowledgements

The authors would like to thank CNPq for the research grants (N.M.P.S.R.- No309795/2021-4 and L.K.A.M.L.-No308463/2018-8), MCTI/CNPq/Universal (M.E.N.P.R.-No424179/2016-4) for the financial aid and Central Analítica-UFC/CT-INFRA/MCTI-SISNANO/CAPES for their support.

Funding

This work was supported by the Coordination for the Improvement of Higher Education Personnel (CAPES) – Finance Code 001 – and by the Brazilian National Council for Scientific and Technological Development (CNPq).

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Contributions

MSC: conceptualization, data curation, formal analysis, methodology and writing – original draft; CSVM, CBA, RCT, MMS and LMAS: formal analysis and methodology; NMPSR: acquirement of financing and resources; LKAML and MENPR: conceptualization, acquirement of financing and resources, supervision, writing – original draft.

Corresponding authors

Correspondence to Luzia Kalyne Almeida Moreira Leal or Maria Elenir Nobre Pinho Ribeiro.

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Ethical approval

All experimental procedures were approved by the Ethics Committee in Research of the Federal University of Ceará protocol CAAE: 68054623.7.0000.5054.

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da Silva Campelo, M., de Menezes, C.S.V., Aragão, C.B. et al. Physicochemical Characterization and Biological Evaluation of Agaricus subrufescens Polysaccharides in Human Blood Cells. Rev. Bras. Farmacogn. 34, 93–101 (2024). https://doi.org/10.1007/s43450-023-00463-x

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  • DOI: https://doi.org/10.1007/s43450-023-00463-x

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