Agaricus brasiliensis Mushroom Protects Against Sepsis by Alleviating Oxidative and Inflammatory Response

Kely Campos Navegantes-Lima, Valter Vinicius Silva Monteiro, Silvia Leticia de França Gaspar, Ana Ligia de Brito Oliveira, Juliana Pinheiro de Oliveira, Jordano Ferreira Reis, Rafaelli de Souza Gomes, Caroline Azulay Rodrigues, Herta Stutz, Vanessa Sovrani, Alessandra Peres, Pedro Roosevelt Torres Romão, Marta Chagas Monteiro
Frontiers in Immunology 2020, 11: 1238
Sepsis is characterized by the host's dysregulated immune response to an infection followed by a potentially fatal organ dysfunction. Although there have been some advances in the treatment of sepsis, mainly focused on broad-spectrum antibiotics, mortality rates remain high, urging for the search of new therapies. Oxidative stress is one of the main features of septic patients, so antioxidants can be a good alternative treatment. Agaricus brasiliensis is a nutraceutical rich in bioactive compounds such as polyphenols and polysaccharides, exhibiting antioxidant, antitumor, and immunomodulatory activities. Here, we investigated the immunomodulatory and antioxidant effects of A. brasilensis aqueous extract in the cecal ligation and puncture (CLP) sepsis model. Our data showed that aqueous extract of A. brasiliensis reduced systemic inflammatory response and improved bacteria clearance and mice survival. In addition, A brasiliensis decreased the oxidative stress markers in serum, peritoneal cavity, heart and liver of septic animals, as well as ROS production ( in vitro and in vivo ) and tert -Butyl hydroperoxide-induced DNA damage in peripheral blood mononuclear cells from healthy donors in vitro . In conclusion, the aqueous extract of A. brasiliensis was able to increase the survival of septic animals by a mechanism involving immunomodulatory and antioxidant protective effects.

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