Related Experiment Video

Updated: Sep 12, 2025

Biolistic Transformation of a Fluorescent Tagged Gene into the Opportunistic Fungal Pathogen Cryptococcus neoformans
07:32

Biolistic Transformation of a Fluorescent Tagged Gene into the Opportunistic Fungal Pathogen Cryptococcus neoformans

Published on: March 19, 2015

10.1K

The role of uncharacterized protein Taf1 in regulating ATP levels and virulence of Cryptococcus neoformans

Yuanyuan Ma1, Kaisu Pan2,3, Ling Shen4

  • 1Nantong Key Laboratory of Environmental Toxicology, Department of Occupational Medicine and Environmental Toxicology, School of Public Health, Nantong University, Nantong, 226019, China.

BMC Microbiology
|August 5, 2025
PubMed

Insights

The uncharacterized protein Taf1 is essential for Cryptococcus neoformans virulence and ATP regulation. Deleting TAF1 impairs fungal growth and increases host survival in infection models.

Area of Science:

  • Mycology
  • Molecular Biology
  • Pathogenesis

Background:

  • Cryptococcus neoformans is a human fungal pathogen causing severe infections, especially in immunocompromised individuals.
  • The protein Taf1's role in C. neoformans virulence and energy metabolism was previously unknown.

Purpose of the Study:

  • To investigate the function of the uncharacterized protein Taf1 in Cryptococcus neoformans.
  • To determine Taf1's role in regulating ATP levels and fungal virulence.

Main Methods:

  • Gene deletion (taf1Δ) and analysis of gene expression using RNA-Seq.
  • Phenotypic characterization including growth assays at elevated temperatures.
  • Murine model of infection to assess virulence.
  • Gene Ontology and KEGG pathway analyses.
  • Metabolomics analysis.

Main Results:

  • TAF1 deletion altered the expression of 204 upregulated and 908 downregulated genes, impacting metabolic and cellular processes.
  • The taf1Δ mutant showed impaired growth at 39°C.
  • Mice infected with the taf1Δ mutant exhibited significantly improved survival.
  • KEGG analysis revealed alterations in fatty acid biosynthesis and degradation pathways.

Conclusions:

  • Taf1 plays a crucial role in regulating cellular energy and is essential for C. neoformans virulence.
  • Targeting Taf1 could offer potential therapeutic strategies against cryptococcosis.
Keywords:
Cryptococcus neoformansATPTaf1Virulence

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