Vomocytosis: Too Much Booze, Base, or Calcium?

ABSTRACT Macrophages are well known for their phagocytic activity and their role in innate immune responses. Macrophages eat non-self particles, via a variety of mechanisms, and typically break down internalized cargo into small macromolecules. However, some pathogenic agents have the ability to eva...

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Main Authors: Melissa Cruz-Acuña, Noah Pacifici, Jamal S. Lewis
Format: Article
Language:English
Published: American Society for Microbiology 2019-12-01
Series:mBio
Subjects:
Online Access:https://journals.asm.org/doi/10.1128/mBio.02526-19
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author Melissa Cruz-Acuña
Noah Pacifici
Jamal S. Lewis
author_facet Melissa Cruz-Acuña
Noah Pacifici
Jamal S. Lewis
author_sort Melissa Cruz-Acuña
collection DOAJ
description ABSTRACT Macrophages are well known for their phagocytic activity and their role in innate immune responses. Macrophages eat non-self particles, via a variety of mechanisms, and typically break down internalized cargo into small macromolecules. However, some pathogenic agents have the ability to evade this endosomal degradation through a nonlytic exocytosis process termed vomocytosis. This phenomenon has been most often studied for Cryptococcus neoformans, a yeast that causes roughly 180,000 deaths per year, primarily in immunocompromised (e.g., human immunodeficiency virus [HIV]) patients. Existing dogma purports that vomocytosis involves distinctive cellular pathways and intracellular physicochemical cues in the host cell during phagosomal maturation. Moreover, it has been observed that the immunological state of the individual and macrophage phenotype affect vomocytosis outcomes. Here we compile the current knowledge on the factors (with respect to the phagocytic cell) that promote vomocytosis of C. neoformans from macrophages.
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spelling doaj.art-c95e966711ad49719169c56f291b093e2022-12-21T21:25:24ZengAmerican Society for MicrobiologymBio2150-75112019-12-0110610.1128/mBio.02526-19Vomocytosis: Too Much Booze, Base, or Calcium?Melissa Cruz-Acuña0Noah Pacifici1Jamal S. Lewis2Department of Biomedical Engineering, University of California, Davis, Davis, California, USADepartment of Biomedical Engineering, University of California, Davis, Davis, California, USADepartment of Biomedical Engineering, University of California, Davis, Davis, California, USAABSTRACT Macrophages are well known for their phagocytic activity and their role in innate immune responses. Macrophages eat non-self particles, via a variety of mechanisms, and typically break down internalized cargo into small macromolecules. However, some pathogenic agents have the ability to evade this endosomal degradation through a nonlytic exocytosis process termed vomocytosis. This phenomenon has been most often studied for Cryptococcus neoformans, a yeast that causes roughly 180,000 deaths per year, primarily in immunocompromised (e.g., human immunodeficiency virus [HIV]) patients. Existing dogma purports that vomocytosis involves distinctive cellular pathways and intracellular physicochemical cues in the host cell during phagosomal maturation. Moreover, it has been observed that the immunological state of the individual and macrophage phenotype affect vomocytosis outcomes. Here we compile the current knowledge on the factors (with respect to the phagocytic cell) that promote vomocytosis of C. neoformans from macrophages.https://journals.asm.org/doi/10.1128/mBio.02526-19vomocytosismacrophagepHphagosomenonlytic exocytosisCryptococcus neoformans
spellingShingle Melissa Cruz-Acuña
Noah Pacifici
Jamal S. Lewis
Vomocytosis: Too Much Booze, Base, or Calcium?
mBio
vomocytosis
macrophage
pH
phagosome
nonlytic exocytosis
Cryptococcus neoformans
title Vomocytosis: Too Much Booze, Base, or Calcium?
title_full Vomocytosis: Too Much Booze, Base, or Calcium?
title_fullStr Vomocytosis: Too Much Booze, Base, or Calcium?
title_full_unstemmed Vomocytosis: Too Much Booze, Base, or Calcium?
title_short Vomocytosis: Too Much Booze, Base, or Calcium?
title_sort vomocytosis too much booze base or calcium
topic vomocytosis
macrophage
pH
phagosome
nonlytic exocytosis
Cryptococcus neoformans
url https://journals.asm.org/doi/10.1128/mBio.02526-19
work_keys_str_mv AT melissacruzacuna vomocytosistoomuchboozebaseorcalcium
AT noahpacifici vomocytosistoomuchboozebaseorcalcium
AT jamalslewis vomocytosistoomuchboozebaseorcalcium