Immune-Mediated Damage Completes the Parabola: <italic toggle="yes">Cryptococcus neoformans</italic> Pathogenesis Can Reflect the Outcome of a Weak or Strong Immune Response

ABSTRACT Cryptococcosis occurs most frequently in immunocompromised individuals. This has led to the prevailing view that this disease is the result of weak immune responses that cannot control the fungus. However, increasingly, clinical and experimental studies have revealed that the host immune re...

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Autores principales: Liise-anne Pirofski, Arturo Casadevall
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Publicado: American Society for Microbiology 2017
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spelling oai:doaj.org-article:4db5563a6229404e8d2b94e3afbdfea22021-11-15T15:51:56ZImmune-Mediated Damage Completes the Parabola: <italic toggle="yes">Cryptococcus neoformans</italic> Pathogenesis Can Reflect the Outcome of a Weak or Strong Immune Response10.1128/mBio.02063-172150-7511https://doaj.org/article/4db5563a6229404e8d2b94e3afbdfea22017-12-01T00:00:00Zhttps://journals.asm.org/doi/10.1128/mBio.02063-17https://doaj.org/toc/2150-7511ABSTRACT Cryptococcosis occurs most frequently in immunocompromised individuals. This has led to the prevailing view that this disease is the result of weak immune responses that cannot control the fungus. However, increasingly, clinical and experimental studies have revealed that the host immune response can contribute to cryptococcal pathogenesis, including the recent study of L. M. Neal et al. (mBio 8:e01415-17, 2017, https://doi.org/10.1128/mBio.01415-17 ) that reports that CD4+ T cells mediate tissue damage in experimental murine cryptococcosis. This finding has fundamental implications for our understanding of the pathogenesis of cryptococcal disease; it helps explain why immunotherapy has been largely unsuccessful in treatment and provides insight into the paradoxical observation that HIV-associated cryptococcosis may have a better prognosis than cryptococcosis in those with no known immune impairment. The demonstration that host-mediated damage can drive cryptococcal disease provides proof of concept that the parabola put forth in the damage-response framework has the flexibility to depict complex and changing outcomes of host-microbe interaction.Liise-anne PirofskiArturo CasadevallAmerican Society for MicrobiologyarticlefungipathogenesisvirulenceMicrobiologyQR1-502ENmBio, Vol 8, Iss 6 (2017)
institution DOAJ
collection DOAJ
language EN
topic fungi
pathogenesis
virulence
Microbiology
QR1-502
spellingShingle fungi
pathogenesis
virulence
Microbiology
QR1-502
Liise-anne Pirofski
Arturo Casadevall
Immune-Mediated Damage Completes the Parabola: <italic toggle="yes">Cryptococcus neoformans</italic> Pathogenesis Can Reflect the Outcome of a Weak or Strong Immune Response
description ABSTRACT Cryptococcosis occurs most frequently in immunocompromised individuals. This has led to the prevailing view that this disease is the result of weak immune responses that cannot control the fungus. However, increasingly, clinical and experimental studies have revealed that the host immune response can contribute to cryptococcal pathogenesis, including the recent study of L. M. Neal et al. (mBio 8:e01415-17, 2017, https://doi.org/10.1128/mBio.01415-17 ) that reports that CD4+ T cells mediate tissue damage in experimental murine cryptococcosis. This finding has fundamental implications for our understanding of the pathogenesis of cryptococcal disease; it helps explain why immunotherapy has been largely unsuccessful in treatment and provides insight into the paradoxical observation that HIV-associated cryptococcosis may have a better prognosis than cryptococcosis in those with no known immune impairment. The demonstration that host-mediated damage can drive cryptococcal disease provides proof of concept that the parabola put forth in the damage-response framework has the flexibility to depict complex and changing outcomes of host-microbe interaction.
format article
author Liise-anne Pirofski
Arturo Casadevall
author_facet Liise-anne Pirofski
Arturo Casadevall
author_sort Liise-anne Pirofski
title Immune-Mediated Damage Completes the Parabola: <italic toggle="yes">Cryptococcus neoformans</italic> Pathogenesis Can Reflect the Outcome of a Weak or Strong Immune Response
title_short Immune-Mediated Damage Completes the Parabola: <italic toggle="yes">Cryptococcus neoformans</italic> Pathogenesis Can Reflect the Outcome of a Weak or Strong Immune Response
title_full Immune-Mediated Damage Completes the Parabola: <italic toggle="yes">Cryptococcus neoformans</italic> Pathogenesis Can Reflect the Outcome of a Weak or Strong Immune Response
title_fullStr Immune-Mediated Damage Completes the Parabola: <italic toggle="yes">Cryptococcus neoformans</italic> Pathogenesis Can Reflect the Outcome of a Weak or Strong Immune Response
title_full_unstemmed Immune-Mediated Damage Completes the Parabola: <italic toggle="yes">Cryptococcus neoformans</italic> Pathogenesis Can Reflect the Outcome of a Weak or Strong Immune Response
title_sort immune-mediated damage completes the parabola: <italic toggle="yes">cryptococcus neoformans</italic> pathogenesis can reflect the outcome of a weak or strong immune response
publisher American Society for Microbiology
publishDate 2017
url https://doaj.org/article/4db5563a6229404e8d2b94e3afbdfea2
work_keys_str_mv AT liiseannepirofski immunemediateddamagecompletestheparabolaitalictoggleyescryptococcusneoformansitalicpathogenesiscanreflecttheoutcomeofaweakorstrongimmuneresponse
AT arturocasadevall immunemediateddamagecompletestheparabolaitalictoggleyescryptococcusneoformansitalicpathogenesiscanreflecttheoutcomeofaweakorstrongimmuneresponse
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