Results 1 to 10 of about 21,220 (243)

Mac1-Dependent Copper Sensing Promotes Histoplasma Adaptation to the Phagosome during Adaptive Immunity

open access: yesmBio, 2022
Intracellular pathogens residing within macrophage phagosomes are challenged with recognizing the phagosomal environment and appropriately responding to changing host defense strategies imposed in this organelle.
Stephanie C. Ray, Chad A. Rappleye
doaj   +2 more sources

Phenotypic characterization of cryptic species in the fungal pathogen Histoplasma

open access: yesmSphere
Histoplasmosis is an endemic mycosis that often presents as a respiratory infection in immunocompromised patients. Hundreds of thousands of new infections are reported annually around the world.
Victoria E. Sepúlveda   +4 more
doaj   +3 more sources

High prevalence and mortality due to Histoplasma capsulatum in the Brazilian Amazon: An autopsy study.

open access: yesPLoS Neglected Tropical Diseases, 2021
BackgroundHistoplasmosis is acquired by inhalation of spores of the dimorphic fungus Histoplasma spp. Although this pathogen is distributed worldwide, it is more prevalent in the Americas.
Natalia Rakislova   +23 more
doaj   +2 more sources

Rapid gain and loss of a chromosome drives key morphology and virulence phenotypes in the fungal pathogen Histoplasma. [PDF]

open access: yesPLoS Biology
Heritable phenotypic switches are fundamental to the ability of cells to respond to specific conditions. Such switches are key to the success of environmental pathogens, which encounter disparate conditions as they transition between the environment and ...
Sarah Heater   +4 more
doaj   +2 more sources

Mapping Histoplasma spp. in bats and cave ecosystems: evidence from midwestern Brazil [PDF]

open access: yesApplied and Environmental Microbiology
Caves serve as natural reservoirs for diverse microbial species due to their unique biotic and abiotic conditions. Histoplasma spp. is frequently associated with guano-enriched soil, low luminosity, and high humidity, particularly in Latin America, a ...
João Paulo Romualdo Alarcão Bernardes   +20 more
doaj   +2 more sources

Genomic epidemiology of Histoplasma in Africa [PDF]

open access: yesmBio
Histoplasmosis, the disease caused by thermally dimorphic fungi in the genus Histoplasma, is usually associated with pulmonary involvement in healthy individuals and a disseminated syndrome in immunocompromised patients.
Rutendo E. Mapengo   +15 more
doaj   +2 more sources

Genome Sequences Reveal Cryptic Speciation in the Human Pathogen Histoplasma capsulatum

open access: yesmBio, 2017
Histoplasma capsulatum is a pathogenic fungus that causes life-threatening lung infections. About 500,000 people are exposed to H. capsulatum each year in the United States, and over 60% of the U.S. population has been exposed to the fungus at some point
Victoria E. Sepúlveda   +4 more
doaj   +2 more sources

Histoplasma Responses to Nutritional Immunity Imposed by Macrophage Activation

open access: yesJournal of Fungi, 2019
The fungal pathogen Histoplasma capsulatum resides within the phagosome of host phagocytic cells. Within this intracellular compartment, Histoplasma yeast replication requires the acquisition of several essential nutrients, including metal ions.
Peter J. Brechting, Chad A. Rappleye
doaj   +2 more sources

Elevated carbon dioxide enhances the growth and reduces the antifungal susceptibility of Histoplasma capsulatum [PDF]

open access: yesMicrobiology Spectrum
Histoplasma capsulatum is a thermally dimorphic fungal pathogen. It causes approximately 500,000 infections annually in the United States. Histoplasma is present as avirulent mycelia in the soil and transforms into pathogenic yeasts at the human body ...
Qian Shen, Kelsey Steinmetz
doaj   +2 more sources

Sensing the heat and the host: Virulence determinants of Histoplasma capsulatum

open access: yesVirulence, 2019
Histoplasma capsulatum is a member of a group of fungal pathogens called thermally dimorphic fungi, all of which respond to mammalian body temperature by converting from an environmental mold form into a parasitic host form that causes disease ...
Sinem Beyhan, Anita Sil
doaj   +2 more sources

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