Morphology Changes in Human Fungal Pathogens upon Interaction with the Host

Morphological changes are a very common and effective strategy for pathogens to survive in the mammalian host. During interactions with their host, human pathogenic fungi undergo an array of morphological changes that are tightly associated with virulence. Candida albicans switches between yeast cel...

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Main Authors: Zhongming Li, Kirsten Nielsen
Format: Article
Language:English
Published: MDPI AG 2017-12-01
Series:Journal of Fungi
Subjects:
Online Access:https://www.mdpi.com/2309-608X/3/4/66
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author Zhongming Li
Kirsten Nielsen
author_facet Zhongming Li
Kirsten Nielsen
author_sort Zhongming Li
collection DOAJ
description Morphological changes are a very common and effective strategy for pathogens to survive in the mammalian host. During interactions with their host, human pathogenic fungi undergo an array of morphological changes that are tightly associated with virulence. Candida albicans switches between yeast cells and hyphae during infection. Thermally dimorphic pathogens, such as Histoplasma capsulatum and Blastomyces species transform from hyphal growth to yeast cells in response to host stimuli. Coccidioides and Pneumocystis species produce spherules and cysts, respectively, which allow for the production of offspring in a protected environment. Finally, Cryptococcus species suppress hyphal growth and instead produce an array of yeast cells—from large polyploid titan cells to micro cells. While the morphology changes produced by human fungal pathogens are diverse, they all allow for the pathogens to evade, manipulate, and overcome host immune defenses to cause disease. In this review, we summarize the morphology changes in human fungal pathogens—focusing on morphological features, stimuli, and mechanisms of formation in the host.
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spelling doaj.art-de83a480e8204f0981936b5b227705ac2022-12-22T01:14:03ZengMDPI AGJournal of Fungi2309-608X2017-12-01346610.3390/jof3040066jof3040066Morphology Changes in Human Fungal Pathogens upon Interaction with the HostZhongming Li0Kirsten Nielsen1Department of Microbiology and Immunity, Medical School, University of Minnesota, 689 23rd Ave SE, Minneapolis, MN 55455, USADepartment of Microbiology and Immunity, Medical School, University of Minnesota, 689 23rd Ave SE, Minneapolis, MN 55455, USAMorphological changes are a very common and effective strategy for pathogens to survive in the mammalian host. During interactions with their host, human pathogenic fungi undergo an array of morphological changes that are tightly associated with virulence. Candida albicans switches between yeast cells and hyphae during infection. Thermally dimorphic pathogens, such as Histoplasma capsulatum and Blastomyces species transform from hyphal growth to yeast cells in response to host stimuli. Coccidioides and Pneumocystis species produce spherules and cysts, respectively, which allow for the production of offspring in a protected environment. Finally, Cryptococcus species suppress hyphal growth and instead produce an array of yeast cells—from large polyploid titan cells to micro cells. While the morphology changes produced by human fungal pathogens are diverse, they all allow for the pathogens to evade, manipulate, and overcome host immune defenses to cause disease. In this review, we summarize the morphology changes in human fungal pathogens—focusing on morphological features, stimuli, and mechanisms of formation in the host.https://www.mdpi.com/2309-608X/3/4/66human fungal pathogenmorphology changehost-pathogen interactiontitan cellspheruleshyphae
spellingShingle Zhongming Li
Kirsten Nielsen
Morphology Changes in Human Fungal Pathogens upon Interaction with the Host
Journal of Fungi
human fungal pathogen
morphology change
host-pathogen interaction
titan cell
spherules
hyphae
title Morphology Changes in Human Fungal Pathogens upon Interaction with the Host
title_full Morphology Changes in Human Fungal Pathogens upon Interaction with the Host
title_fullStr Morphology Changes in Human Fungal Pathogens upon Interaction with the Host
title_full_unstemmed Morphology Changes in Human Fungal Pathogens upon Interaction with the Host
title_short Morphology Changes in Human Fungal Pathogens upon Interaction with the Host
title_sort morphology changes in human fungal pathogens upon interaction with the host
topic human fungal pathogen
morphology change
host-pathogen interaction
titan cell
spherules
hyphae
url https://www.mdpi.com/2309-608X/3/4/66
work_keys_str_mv AT zhongmingli morphologychangesinhumanfungalpathogensuponinteractionwiththehost
AT kirstennielsen morphologychangesinhumanfungalpathogensuponinteractionwiththehost