Dectin-3 Is Not Required for Protection against Cryptococcus neoformans Infection.

C-type lectin receptors (CLRs) are diverse, trans-membrane proteins that function as pattern recognition receptors (PRRs) which are necessary for orchestrating immune responses against pathogens. CLRs have been shown to play a major role in recognition and protection against fungal pathogens. Dectin...

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Main Authors: Althea Campuzano, Natalia Castro-Lopez, Karen L Wozniak, Chrissy M Leopold Wager, Floyd L Wormley
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2017-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC5249099?pdf=render
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author Althea Campuzano
Natalia Castro-Lopez
Karen L Wozniak
Chrissy M Leopold Wager
Floyd L Wormley
author_facet Althea Campuzano
Natalia Castro-Lopez
Karen L Wozniak
Chrissy M Leopold Wager
Floyd L Wormley
author_sort Althea Campuzano
collection DOAJ
description C-type lectin receptors (CLRs) are diverse, trans-membrane proteins that function as pattern recognition receptors (PRRs) which are necessary for orchestrating immune responses against pathogens. CLRs have been shown to play a major role in recognition and protection against fungal pathogens. Dectin-3 (also known as MCL, Clecsf8, or Clec4d) is a myeloid cell-specific CLR that recognizes mycobacterial trehalose 6,6'-dimycolate (TDM) as well as α-mannans present in the cell wall of fungal pathogens. To date, a potential role for Dectin-3 in the mediation of protective immune responses against C. neoformans has yet to be determined. Consequently, we evaluated the impact of Dectin-3 deficiency on the development of protective immune responses against C. neoformans using an experimental murine model of pulmonary cryptococcosis. Dectin-3 deficiency did not lead to increased susceptibility of mice to experimental pulmonary C. neoformans infection. Also, no significant differences in pulmonary leukocyte recruitment and cytokine production were observed in Dectin-3 deficient mice compared to wild type infected mice. In addition, we observed no differences in uptake and anti-cryptococcal activity of Dectin-3 deficient dendritic cells and macrophages. Altogether, our studies show that Dectin-3 is dispensable for mediating protective immune responses against pulmonary C. neoformans infection.
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spelling doaj.art-180d81c69f9d431ca7bacb379b35e34a2022-12-21T18:40:59ZengPublic Library of Science (PLoS)PLoS ONE1932-62032017-01-01121e016934710.1371/journal.pone.0169347Dectin-3 Is Not Required for Protection against Cryptococcus neoformans Infection.Althea CampuzanoNatalia Castro-LopezKaren L WozniakChrissy M Leopold WagerFloyd L WormleyC-type lectin receptors (CLRs) are diverse, trans-membrane proteins that function as pattern recognition receptors (PRRs) which are necessary for orchestrating immune responses against pathogens. CLRs have been shown to play a major role in recognition and protection against fungal pathogens. Dectin-3 (also known as MCL, Clecsf8, or Clec4d) is a myeloid cell-specific CLR that recognizes mycobacterial trehalose 6,6'-dimycolate (TDM) as well as α-mannans present in the cell wall of fungal pathogens. To date, a potential role for Dectin-3 in the mediation of protective immune responses against C. neoformans has yet to be determined. Consequently, we evaluated the impact of Dectin-3 deficiency on the development of protective immune responses against C. neoformans using an experimental murine model of pulmonary cryptococcosis. Dectin-3 deficiency did not lead to increased susceptibility of mice to experimental pulmonary C. neoformans infection. Also, no significant differences in pulmonary leukocyte recruitment and cytokine production were observed in Dectin-3 deficient mice compared to wild type infected mice. In addition, we observed no differences in uptake and anti-cryptococcal activity of Dectin-3 deficient dendritic cells and macrophages. Altogether, our studies show that Dectin-3 is dispensable for mediating protective immune responses against pulmonary C. neoformans infection.http://europepmc.org/articles/PMC5249099?pdf=render
spellingShingle Althea Campuzano
Natalia Castro-Lopez
Karen L Wozniak
Chrissy M Leopold Wager
Floyd L Wormley
Dectin-3 Is Not Required for Protection against Cryptococcus neoformans Infection.
PLoS ONE
title Dectin-3 Is Not Required for Protection against Cryptococcus neoformans Infection.
title_full Dectin-3 Is Not Required for Protection against Cryptococcus neoformans Infection.
title_fullStr Dectin-3 Is Not Required for Protection against Cryptococcus neoformans Infection.
title_full_unstemmed Dectin-3 Is Not Required for Protection against Cryptococcus neoformans Infection.
title_short Dectin-3 Is Not Required for Protection against Cryptococcus neoformans Infection.
title_sort dectin 3 is not required for protection against cryptococcus neoformans infection
url http://europepmc.org/articles/PMC5249099?pdf=render
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