Cited by 134Fungal and yeast genetics researchAntifungal resistance and susceptibilityBacterial Genetics and Biotechnology

The MAP kinase Mkc1p is activated under different stress conditions in Candida albicans

Navarro-García, Federico, Eisman, Blanca, Fiuza, Sonia M., Nombela, César, Pla, Jesús·2005·Microbiology

Abstract

Candida albicans is an opportunistic pathogen that has adapted to live and grow in the human body as its natural environment. Under these conditions, this fungus faces numerous challenges, including oxidative, osmotic and enzymic processes that may damage external and internal structures. In view of the key role of MAP kinase signalling pathways in the physiology of C. albicans, the effect of agents mimicking in vivo environmental conditions on the activation of the p42-44 MAP kinases has been analysed. It has been found that Mkc1p is phosphorylated in the presence of oxidative stress, changes in osmotic pressure, cell wall damage and a decrease in the growth temperature. This phosphorylation is dependent on Pkc1p, indicating that both proteins operate in the same signalling pathway in C. albicans. Under some stimuli, the phosphorylation of Mkc1p required the presence of Hog1p, the MAP kinase of the high osmolarity glycerol (HOG) pathway. This suggests the existence of a new regulatory role, at least under some conditions, for these MAP kinase pathways in yeast.

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Crossref · 10.1099/mic.0.28038-0

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46 of 46 references verified0 citation errors · 0 not checkable

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  • In C. albicans, the PKC pathway is activated under diverse stress conditions and works in concert with calcineurin and the high osmolarity glycerol pathway to regulate chitin synthesis, which can enhance tolerance to echinocandins.

    “In C. albicans, the PKC pathway is activated under diverse stress conditions [43] and works in concert with calcineurin and the high osmolarity glycerol pathway to regulate chitin synthesis, which can enhance tolerance to echinocandins [15],[16].”
  • Mkc1 is activated by hydrogen peroxide but is not required for survival under this condition.

    “For example, Mkc1, the mitogen activated protein kinase (MAPK) in the PKC pathway, is activated by hydrogen peroxide but is not required for survival under this condition [43].”

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Authors
Navarro-García, F., Eisman, B., Fiuza, S. M., Nombela, C., & Pla, J.
Affiliations
  • Dept Microbiología II, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza de Ramón y Cajal s/n. E-28040 Madrid, Spain
  • Universidad Complutense de Madrid (ES)
Venue
Microbiology
Published
2005-08-01
Volume
151
Issue
8
Pages
2737-2749
ISSN
  • 1350-0872 (ISSN-L)
  • 1465-2080
OpenAlex
W2147289133
Cited by
134
References
47
Citations by year
2026: 3 · 2025: 8 · 2024: 5 · 2023: 3 · 2022: 4 · 2021: 6 · 2020: 4 · 2019: 6 · 2018: 4 · 2017: 5 · 2016: 11 · 2015: 12 · 2014: 7 · 2013: 8 · 2012: 7
FWCI
2.13
Type
journal article
Language
en
Open access
closed
Locations
  • Microbiology (publishedVersion)
  • PubMed (publishedVersion)
Funders
Pfizer
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Fungal and yeast genetics research
  • Health Sciences › Medicine › Infectious Diseases › Antifungal resistance and susceptibility
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Bacterial Genetics and Biotechnology
Keywords
Candida albicans, MAPK signaling, Hog1p, HOG pathway, oxidative stress, osmotic stress, cell wall damage, cold stress, protein phosphorylation, stress response
MeSH terms
Candida albicans, Osmotic Pressure, Protein Kinase C, Temperature, Signal Transduction, Gene Expression Regulation, Fungal, Heat-Shock Response, Mitogen-Activated Protein Kinases, MAP Kinase Signaling System

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