Characterisation of <i>Aspergillus fumigatus</i> Endocytic Trafficking within Airway Epithelial Cells Using High-Resolution Automated Quantitative Confocal Microscopy

The precise characterization of the mechanisms modulating <i>Aspergillus fumigatus</i> survival within airway epithelial cells has been impaired by the lack of live-cell imaging technologies and user-friendly quantification approaches. Here we described the use of an automated image anal...

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Main Authors: Nagwa Ben-Ghazzi, Sergio Moreno-Velásquez, Constanze Seidel, Darren Thomson, David W. Denning, Nick D. Read, Paul Bowyer, Sara Gago
Format: Article
Language:English
Published: MDPI AG 2021-06-01
Series:Journal of Fungi
Subjects:
Online Access:https://www.mdpi.com/2309-608X/7/6/454
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author Nagwa Ben-Ghazzi
Sergio Moreno-Velásquez
Constanze Seidel
Darren Thomson
David W. Denning
Nick D. Read
Paul Bowyer
Sara Gago
author_facet Nagwa Ben-Ghazzi
Sergio Moreno-Velásquez
Constanze Seidel
Darren Thomson
David W. Denning
Nick D. Read
Paul Bowyer
Sara Gago
author_sort Nagwa Ben-Ghazzi
collection DOAJ
description The precise characterization of the mechanisms modulating <i>Aspergillus fumigatus</i> survival within airway epithelial cells has been impaired by the lack of live-cell imaging technologies and user-friendly quantification approaches. Here we described the use of an automated image analysis pipeline to estimate the proportion of <i>A. fumigatus</i> spores taken up by airway epithelial cells, those contained within phagolysosomes or acidified phagosomes, along with the fungal factors contributing to these processes. Coupling the use of fluorescent <i>A. fumigatus</i> strains and fluorescent epithelial probes targeting lysosomes, acidified compartments and cell membrane, we found that both the efficacy of lysosome recruitment to phagosomes and phagosome acidification determines the capacity of airway epithelial cells to contain <i>A. fumigatus</i> growth. Overall, the capability of the airway epithelium to prevent <i>A. fumigatus</i> survival was higher in bronchial epithelial than alveolar epithelial cells. Certain <i>A. fumigatus</i> cell wall mutants influenced phagosome maturation in airway epithelial cells. Taken together, this live-cell 4D imaging approach allows observation and measurement of the very early processes of <i>A. fumigatus</i> interaction within live airway epithelial monolayers.
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spelling doaj.art-e6d5ce42797b4c71b4b549f3ff8fa4752023-11-21T23:08:14ZengMDPI AGJournal of Fungi2309-608X2021-06-017645410.3390/jof7060454Characterisation of <i>Aspergillus fumigatus</i> Endocytic Trafficking within Airway Epithelial Cells Using High-Resolution Automated Quantitative Confocal MicroscopyNagwa Ben-Ghazzi0Sergio Moreno-Velásquez1Constanze Seidel2Darren Thomson3David W. Denning4Nick D. Read5Paul Bowyer6Sara Gago7Manchester Fungal Infection Group, Division of Infection, Immunity and Respiratory Medicine, Faculty of Biology, Medicine and Health, School of Biological Sciences, The University of Manchester, 2nd Floor, 46 Grafton Street, Manchester M13 9NT, UKManchester Fungal Infection Group, Division of Infection, Immunity and Respiratory Medicine, Faculty of Biology, Medicine and Health, School of Biological Sciences, The University of Manchester, 2nd Floor, 46 Grafton Street, Manchester M13 9NT, UKManchester Fungal Infection Group, Division of Infection, Immunity and Respiratory Medicine, Faculty of Biology, Medicine and Health, School of Biological Sciences, The University of Manchester, 2nd Floor, 46 Grafton Street, Manchester M13 9NT, UKManchester Fungal Infection Group, Division of Infection, Immunity and Respiratory Medicine, Faculty of Biology, Medicine and Health, School of Biological Sciences, The University of Manchester, 2nd Floor, 46 Grafton Street, Manchester M13 9NT, UKManchester Fungal Infection Group, Division of Infection, Immunity and Respiratory Medicine, Faculty of Biology, Medicine and Health, School of Biological Sciences, The University of Manchester, 2nd Floor, 46 Grafton Street, Manchester M13 9NT, UKManchester Fungal Infection Group, Division of Infection, Immunity and Respiratory Medicine, Faculty of Biology, Medicine and Health, School of Biological Sciences, The University of Manchester, 2nd Floor, 46 Grafton Street, Manchester M13 9NT, UKManchester Fungal Infection Group, Division of Infection, Immunity and Respiratory Medicine, Faculty of Biology, Medicine and Health, School of Biological Sciences, The University of Manchester, 2nd Floor, 46 Grafton Street, Manchester M13 9NT, UKManchester Fungal Infection Group, Division of Infection, Immunity and Respiratory Medicine, Faculty of Biology, Medicine and Health, School of Biological Sciences, The University of Manchester, 2nd Floor, 46 Grafton Street, Manchester M13 9NT, UKThe precise characterization of the mechanisms modulating <i>Aspergillus fumigatus</i> survival within airway epithelial cells has been impaired by the lack of live-cell imaging technologies and user-friendly quantification approaches. Here we described the use of an automated image analysis pipeline to estimate the proportion of <i>A. fumigatus</i> spores taken up by airway epithelial cells, those contained within phagolysosomes or acidified phagosomes, along with the fungal factors contributing to these processes. Coupling the use of fluorescent <i>A. fumigatus</i> strains and fluorescent epithelial probes targeting lysosomes, acidified compartments and cell membrane, we found that both the efficacy of lysosome recruitment to phagosomes and phagosome acidification determines the capacity of airway epithelial cells to contain <i>A. fumigatus</i> growth. Overall, the capability of the airway epithelium to prevent <i>A. fumigatus</i> survival was higher in bronchial epithelial than alveolar epithelial cells. Certain <i>A. fumigatus</i> cell wall mutants influenced phagosome maturation in airway epithelial cells. Taken together, this live-cell 4D imaging approach allows observation and measurement of the very early processes of <i>A. fumigatus</i> interaction within live airway epithelial monolayers.https://www.mdpi.com/2309-608X/7/6/454<i>Aspergillus fumigatus</i>airway epithelial cellsphagocytosis
spellingShingle Nagwa Ben-Ghazzi
Sergio Moreno-Velásquez
Constanze Seidel
Darren Thomson
David W. Denning
Nick D. Read
Paul Bowyer
Sara Gago
Characterisation of <i>Aspergillus fumigatus</i> Endocytic Trafficking within Airway Epithelial Cells Using High-Resolution Automated Quantitative Confocal Microscopy
Journal of Fungi
<i>Aspergillus fumigatus</i>
airway epithelial cells
phagocytosis
title Characterisation of <i>Aspergillus fumigatus</i> Endocytic Trafficking within Airway Epithelial Cells Using High-Resolution Automated Quantitative Confocal Microscopy
title_full Characterisation of <i>Aspergillus fumigatus</i> Endocytic Trafficking within Airway Epithelial Cells Using High-Resolution Automated Quantitative Confocal Microscopy
title_fullStr Characterisation of <i>Aspergillus fumigatus</i> Endocytic Trafficking within Airway Epithelial Cells Using High-Resolution Automated Quantitative Confocal Microscopy
title_full_unstemmed Characterisation of <i>Aspergillus fumigatus</i> Endocytic Trafficking within Airway Epithelial Cells Using High-Resolution Automated Quantitative Confocal Microscopy
title_short Characterisation of <i>Aspergillus fumigatus</i> Endocytic Trafficking within Airway Epithelial Cells Using High-Resolution Automated Quantitative Confocal Microscopy
title_sort characterisation of i aspergillus fumigatus i endocytic trafficking within airway epithelial cells using high resolution automated quantitative confocal microscopy
topic <i>Aspergillus fumigatus</i>
airway epithelial cells
phagocytosis
url https://www.mdpi.com/2309-608X/7/6/454
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