Overexpression of the White Opaque Switching Master Regulator Wor1 Alters Lipid Metabolism and Mitochondrial Function in .

J Fungi (Basel)

Departamento de Microbiología y Parasitología-IRYCIS, Facultad de Farmacia, Universidad Complutense de Madrid, Avda. Ramón y Cajal s/n, 28040 Madrid, Spain.

Published: September 2022

AI Article Synopsis

  • The study investigates how the transcription factor Wor1 impacts the commensal yeast's ability to thrive in the human gastrointestinal tract.
  • Overexpressing Wor1 leads to significant changes in the yeast's lipid content and composition, affecting various aspects of cellular physiology.
  • These alterations enhance the yeast's resistance to certain damaging agents and improve its ability to adapt to the unique conditions of the gut environment.

Article Abstract

is a commensal yeast that inhabits the gastrointestinal tract of humans; increased colonization of this yeast in this niche has implicated the master regulator of the white-opaque transition, Wor1, by mechanisms not completely understood. We have addressed the role that this transcription factor has on commensalism by the characterization of strains overexpressing this gene. We show that overexpression causes an alteration of the total lipid content of the fungal cell and significantly alters the composition of structural and reserve molecular species lipids as determined by lipidomic analysis. These cells are hypersensitive to membrane-disturbing agents such as SDS, have increased tolerance to azoles, an augmented number of peroxisomes, and increased phospholipase activity. overexpression also decreases mitochondrial activity and results in altered susceptibility to certain oxidants. All together, these changes reflect drastic alterations in the cellular physiology that facilitate adaptation to the gastrointestinal tract environment.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9604646PMC
http://dx.doi.org/10.3390/jof8101028DOI Listing

Publication Analysis

Top Keywords

master regulator
8
gastrointestinal tract
8
overexpression white
4
white opaque
4
opaque switching
4
switching master
4
regulator wor1
4
wor1 alters
4
alters lipid
4
lipid metabolism
4

Similar Publications

Nuclear lipids play roles in regulatory processes such as signaling, transcriptional regulation, and DNA repair. In this report, we demonstrate that nuclear lipids may contribute to Ki-67-regulated chromosome integrity during mitosis. In COS-7 cells, nuclear lipids are enriched at the perichromosomal layer and excluded from intrachromosomal regions during early mitosis, but are then detected in intrachromosomal regions during late mitosis, as revealed by TT-ExM, an improved expansion microscopy technique that enables high-sensitivity, super-resolution imaging of proteins, lipids, and nuclear DNA.

View Article and Find Full Text PDF

The lipid kinase phosphatidylinositol 4 kinase III α (PI4KIIIα/PI4KA) is a master regulator of the lipid composition and asymmetry of the plasma membrane. PI4KA exists primarily in a heterotrimeric complex with its regulatory proteins TTC7 and FAM126. Fundamental to PI4KA activity is its targeted recruitment to the plasma membrane by the lipidated proteins EFR3A and EFR3B.

View Article and Find Full Text PDF

Brassinosteroids (BRs) are plant steroid hormones that regulate plant development and environmental responses. BIL1/BZR1, a master transcription factor that regulates approximately 3000 genes in the BR signaling pathway, is transported to the nucleus from the cytosol in response to BR signaling; however, the molecular mechanism underlying this process is unknown. Here, we identify a novel BR signaling factor, BIL7, that enhances plant growth and positively regulates the nuclear accumulation of BIL1/BZR1 in Arabidopsis thaliana.

View Article and Find Full Text PDF

Protogenin facilitates trunk-to-tail HOX code transition via modulating GDF11/SMAD2 signaling in mammalian embryos.

Commun Biol

December 2024

Department of Life Sciences and Institute of Genome Sciences, College of Life Sciences, National Yang Ming Chiao Tung University, Taipei, Taiwan (ROC).

During embryogenesis, vertebral axial patterning is intricately regulated by multiple signaling networks. This study elucidates the role of protogenin (Prtg), an immunoglobulin superfamily member, in vertebral patterning control. Prtg knockout (Prtg) mice manifest anterior homeotic transformations in their vertebral columns and significant alterations in homeobox (Hox) gene expression.

View Article and Find Full Text PDF

Leishmaniasis continues to be a critical international health issue due to the scarcity of efficient treatment and the development of drug tolerance. New developments in the research of extracellular vesicles (EVs), especially exosomes, have revealed novel disease management approaches. Exosomes are small vesicles that transport lipids, nucleic acids, and proteins in cell signalling.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!