Reciprocal modulation of ammonia and melanin production has implications for cryptococcal virulence

RP Baker, A Casadevall - Nature communications, 2023 - nature.com
The fungus Cryptococcus neoformans is the causative agent of cryptococcosis, a disease
that is uniformly lethal unless treated with antifungal drugs, yet current regimens are …

Cryptococcus neoformans urease affects the outcome of intracellular pathogenesis by modulating phagolysosomal pH

MS Fu, C Coelho, CM De Leon-Rodriguez… - PLoS …, 2018 - journals.plos.org
Cryptococcus neoformans is a facultative intracellular pathogen and its interaction with
macrophages is a key event determining the outcome of infection. Urease is a major …

Cryptococcus gattii urease as a virulence factor and the relevance of enzymatic activity in cryptococcosis pathogenesis

V Feder, L Kmetzsch, CC Staats… - The FEBS …, 2015 - Wiley Online Library
Ureases (EC 3.5. 1.5) are Ni2+‐dependent metalloenzymes produced by plants, fungi and
bacteria that hydrolyze urea to produce ammonia and CO2. The insertion of nickel atoms …

Factors required for activation of urease as a virulence determinant in Cryptococcus neoformans

A Singh, RJ Panting, A Varma, T Saijo, KJ Waldron… - MBio, 2013 - Am Soc Microbiol
Urease in Cryptococcus neoformans plays an important role in fungal dissemination to the
brain and causing meningoencephalitis. Although urea is not required for synthesis of …

Computational analysis reveals a key regulator of cryptococcal virulence and determinant of host response

SR Gish, EJ Maier, BC Haynes, FH Santiago-Tirado… - MBio, 2016 - Am Soc Microbiol
Cryptococcus neoformans is a ubiquitous, opportunistic fungal pathogen that kills over
600,000 people annually. Here, we report integrated computational and experimental …

Development of protective inflammation and cell-mediated immunity against Cryptococcus neoformans after exposure to hyphal mutants

B Zhai, KL Wozniak, J Masso-Silva, S Upadhyay… - MBio, 2015 - Am Soc Microbiol
Morphological switch is tightly coupled with the pathogenesis of many dimorphic fungal
pathogens. Cryptococcus neoformans, the major causative agent of cryptococcal meningitis …

Cryptococcal urease promotes the accumulation of immature dendritic cells and a non-protective T2 immune response within the lung

JJ Osterholzer, R Surana, JE Milam… - The American journal of …, 2009 - Elsevier
Urease, a major virulence factor for Cryptococcus neoformans, promotes lethal meningitis/
encephalitis in mice. The effect of urease within the lung, the primary site of most invasive …

Cdk8 and Ssn801 Regulate oxidative stress resistance and virulence in Cryptococcus neoformans

AL Chang, Y Kang, TL Doering - MBio, 2019 - Am Soc Microbiol
Cryptococcus neoformans kills 200,000 people worldwide each year. After inhalation, this
environmental yeast proliferates either extracellularly or within host macrophages. Under …

Adenylyl-sulfate kinase (Met14)-dependent cysteine and methionine biosynthesis pathways contribute distinctively to pathobiological processes in Cryptococcus …

SH Lee, YB Jang, Y Choi, Y Lee, BN Shin… - Microbiology …, 2023 - Am Soc Microbiol
Blocking of nutrient uptake and amino acid biosynthesis are considered potential targets for
next-generation antifungal drugs against pathogenic fungi, including Cryptococcus …

Signalling pathways in the pathogenesis of Cryptococcus

L Kozubowski, SC Lee, J Heitman - Cellular microbiology, 2009 - Wiley Online Library
Efficient communication with the environment is critical for all living organisms. Fungi utilize
complex signalling systems to sense their environments and control proliferation …