Aspergillus fumigatus transcription factor ZfpA regulates hyphal development and alters susceptibility to antifungals and neutrophil killing during infection.

Hyphal growth is essential for host colonization during Aspergillus infection. The transcription factor ZfpA regulates A. fumigatus hyphal development including branching, septation, and cell wall composition. However, how ZfpA affects fungal growth and susceptibility to host immunity during infecti...

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Main Authors: Taylor J Schoen, Dante G Calise, Jin Woo Bok, Morgan A Giese, Chibueze D Nwagwu, Robert Zarnowski, David Andes, Anna Huttenlocher, Nancy P Keller
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2023-05-01
Series:PLoS Pathogens
Online Access:https://doi.org/10.1371/journal.ppat.1011152
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author Taylor J Schoen
Dante G Calise
Jin Woo Bok
Morgan A Giese
Chibueze D Nwagwu
Robert Zarnowski
David Andes
Anna Huttenlocher
Nancy P Keller
author_facet Taylor J Schoen
Dante G Calise
Jin Woo Bok
Morgan A Giese
Chibueze D Nwagwu
Robert Zarnowski
David Andes
Anna Huttenlocher
Nancy P Keller
author_sort Taylor J Schoen
collection DOAJ
description Hyphal growth is essential for host colonization during Aspergillus infection. The transcription factor ZfpA regulates A. fumigatus hyphal development including branching, septation, and cell wall composition. However, how ZfpA affects fungal growth and susceptibility to host immunity during infection has not been investigated. Here, we use the larval zebrafish-Aspergillus infection model and primary human neutrophils to probe how ZfpA affects A. fumigatus pathogenesis and response to antifungal drugs in vivo. ZfpA deletion promotes fungal clearance and attenuates virulence in wild-type hosts and this virulence defect is abrogated in neutrophil-deficient zebrafish. ZfpA deletion also increases susceptibility to human neutrophils ex vivo while overexpression impairs fungal killing. Overexpression of ZfpA confers protection against the antifungal caspofungin by increasing chitin synthesis during hyphal development, while ZfpA deletion reduces cell wall chitin and increases caspofungin susceptibility in neutrophil-deficient zebrafish. These findings suggest a protective role for ZfpA activity in resistance to the innate immune response and antifungal treatment during A. fumigatus infection.
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spelling doaj.art-54b4ec096f514a7f8c91391b1326d8c72023-12-15T05:31:43ZengPublic Library of Science (PLoS)PLoS Pathogens1553-73661553-73742023-05-01195e101115210.1371/journal.ppat.1011152Aspergillus fumigatus transcription factor ZfpA regulates hyphal development and alters susceptibility to antifungals and neutrophil killing during infection.Taylor J SchoenDante G CaliseJin Woo BokMorgan A GieseChibueze D NwagwuRobert ZarnowskiDavid AndesAnna HuttenlocherNancy P KellerHyphal growth is essential for host colonization during Aspergillus infection. The transcription factor ZfpA regulates A. fumigatus hyphal development including branching, septation, and cell wall composition. However, how ZfpA affects fungal growth and susceptibility to host immunity during infection has not been investigated. Here, we use the larval zebrafish-Aspergillus infection model and primary human neutrophils to probe how ZfpA affects A. fumigatus pathogenesis and response to antifungal drugs in vivo. ZfpA deletion promotes fungal clearance and attenuates virulence in wild-type hosts and this virulence defect is abrogated in neutrophil-deficient zebrafish. ZfpA deletion also increases susceptibility to human neutrophils ex vivo while overexpression impairs fungal killing. Overexpression of ZfpA confers protection against the antifungal caspofungin by increasing chitin synthesis during hyphal development, while ZfpA deletion reduces cell wall chitin and increases caspofungin susceptibility in neutrophil-deficient zebrafish. These findings suggest a protective role for ZfpA activity in resistance to the innate immune response and antifungal treatment during A. fumigatus infection.https://doi.org/10.1371/journal.ppat.1011152
spellingShingle Taylor J Schoen
Dante G Calise
Jin Woo Bok
Morgan A Giese
Chibueze D Nwagwu
Robert Zarnowski
David Andes
Anna Huttenlocher
Nancy P Keller
Aspergillus fumigatus transcription factor ZfpA regulates hyphal development and alters susceptibility to antifungals and neutrophil killing during infection.
PLoS Pathogens
title Aspergillus fumigatus transcription factor ZfpA regulates hyphal development and alters susceptibility to antifungals and neutrophil killing during infection.
title_full Aspergillus fumigatus transcription factor ZfpA regulates hyphal development and alters susceptibility to antifungals and neutrophil killing during infection.
title_fullStr Aspergillus fumigatus transcription factor ZfpA regulates hyphal development and alters susceptibility to antifungals and neutrophil killing during infection.
title_full_unstemmed Aspergillus fumigatus transcription factor ZfpA regulates hyphal development and alters susceptibility to antifungals and neutrophil killing during infection.
title_short Aspergillus fumigatus transcription factor ZfpA regulates hyphal development and alters susceptibility to antifungals and neutrophil killing during infection.
title_sort aspergillus fumigatus transcription factor zfpa regulates hyphal development and alters susceptibility to antifungals and neutrophil killing during infection
url https://doi.org/10.1371/journal.ppat.1011152
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