Evidence map›Paper›PMID 18689526›Full record

ArticleEukaryotic cell2008

PKC1 is essential for protection against both oxidative and nitrosative stresses, cell integrity, and normal manifestation of virulence factors in the pathogenic fungus Cryptococcus neoformans.

Kimberly J Gerik, Sujit R Bhimireddy, Jan S Ryerse, Charles A Specht, Jennifer K Lodge

Open access · diamondAbstract read
In one paragraph

Article in Eukaryotic cell, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers.

0numbers the graph read from it
0cells of the map it votes in
81citing papers in PubMed
6.8field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

81 citing papers in PubMed, 111 citations in OpenAlex.

  1. Review
  2. Article
  3. Roles of Different Signaling Pathways inJournal of fungi (Basel, Switzerland) · 2024
    Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Zinc Finger Proteins in the Human Fungal PathogenInternational journal of molecular sciences · 2020
    Review
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article

21 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Kimberly J GerikEdward A Doisy Department of Biochemistry and Molecular Biology, Saint Louis University School of Medicine, St Louis, Missouri 63104, USA.
Sujit R Bhimireddy
Jan S Ryerse
Charles A Specht
Jennifer K Lodge
Saint Louis University · USUniversity of Massachusetts Chan Medical School · US

Funding

Signal transduction in C. neoformansR01AI050184 · NIAID · WASHINGTON UNIVERSITY · PI LODGE, JENNIFER K. · 2002 to 2012
$3.7M
Chitosan in CryptococcusR01AI072195 · NIAID · WASHINGTON UNIVERSITY · PI LODGE, JENNIFER K. · 2008 to 2018
$3.5M
Oxidative/nitrosative stress resistance of CryptococcusR01HL088905 · NHLBI · WASHINGTON UNIVERSITY · PI LODGE, JENNIFER K. · 2006 to 2010
$1.8M
NHLBI NIH HHS R01 HL088905NHLBI NIH HHS R01HL088905NIAID NIH HHS R01 AI050184NIAID NIH HHS R01 AI072195NIAID NIH HHS R01AI072195NIAID NIH HHS R01AI50184
6 · The paper itself

Abstract

Cell wall integrity is crucial for fungal growth, survival, and pathogenesis. Responses to environmental stresses are mediated by the highly conserved Pkc1 protein and its downstream components. In this study, we demonstrate that both oxidative and nitrosative stresses activate the PKC1 cell integrity pathway in wild-type cells, as measured by phosphorylation of Mpk1, the terminal protein in the PKC1 phosphorylation cascade. Furthermore, deletion of PKC1 shows that this gene is essential for defense against both oxidative and nitrosative stresses; however, other genes involved directly in the PKC1 pathway are dispensable for protection against these stresses. This suggests that Pkc1 may have multiple and alternative functions other than activating the mitogen-activated protein kinase cascade from a "top-down" approach. Deletion of PKC1 also causes osmotic instability, temperature sensitivity, severe sensitivity to cell wall-inhibiting agents, and alterations in capsule and melanin. Furthermore, the vital cell wall components chitin and its deacetylated form chitosan appear to be mislocalized in a pkc1Delta strain, although this mutant contains wild-type levels of both of these polymers. These data indicate that loss of Pkc1 has pleiotropic effects because it is central to many functions either dependent on or independent of PKC1 pathway activation. Notably, this is the first time that Pkc1 has been implicated in protection against nitrosative stress in any organism.

Indexed as

Oxidative StressCell WallChitinCryptococcus neoformansFungal ProteinsMelaninsMitogen-Activated Protein KinasesNitroso CompoundsProtein Kinase CSequence DeletionSignal TransductionVirulence FactorsChitinFungal ProteinsMelaninsMitogen-Activated Protein KinasesNitroso CompoundsProtein Kinase CVirulence Factors

Identifiers

PMID18689526
PMCPMC2568057
OpenAlexW2160588674

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.