An Alpha-Glucan from Lomentospora prolificans Mediates Fungal–Host Interaction Signaling through Dectin-1 and Mincle

Mariana Ingrid Dutra da Silva Xisto, Lucas dos Santos Dias, Francisco Felipe Bezerra, Vera Carolina Bordallo Bittencourt, Rodrigo Rollin-Pinheiro, Ana Carolina Cartágenes-Pinto, Rosa Maria Tavares Haido, Paulo Antônio de Souza Mourão, Eliana Barreto-Bergter
2023 Journal of Fungi  
Scedosporium and Lomentospora are a group of filamentous fungi with some clinically relevant species causing either localized, invasive, or disseminated infections. Understanding how the host immune response is activated and how fungi interact with the host is crucial for a better management of the infection. In this context, an α-glucan has already been described in S. boydii, which plays a role in the inflammatory response. In the present study, an α-glucan has been characterized in L.
more » ... cans and was shown to be exposed on the fungal surface. The α-glucan is recognized by peritoneal macrophages and induces oxidative burst in activated phagocytes. Its recognition by macrophages is mediated by receptors that include Dectin-1 and Mincle, but not TLR2 and TLR4. These results contribute to the understanding of how Scedosporium's and Lomentospora's physiopathologies are developed in patients suffering with scedosporiosis and lomentosporiosis.
doi:10.3390/jof9030291 fatcat:nfw3jueamjffbbzbfpz4yxt56e