Evidence map›Paper›PMID 27872238›Full record

ArticleInfection and immunity2017

Phagosomal Neutralization by the Fungal Pathogen Candida albicans Induces Macrophage Pyroptosis.

Slavena Vylkova, Michael C Lorenz

Open access · bronzeAbstract read
In one paragraph

Article in Infection and immunity, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
5.8field-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

48 citing papers in PubMed, 68 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Phagosome maturation during fungal infection.Current opinion in microbiology · 2026
    Review
  5. Review
  6. Review
  7. Review
  8. Infection and immunity · 2023
    Article
  9. Review
  10. Article
  11. Review
  12. Review
  13. Review
  14. Non-Journal of fungi (Basel, Switzerland) · 2022
    Review
  15. Review
  16. mBio · 2022
    Article
  17. Article
  18. Production of ammonia makes Venusian clouds habitable and explains observed cloud-level chemical anomalies.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  19. Article
  20. Article
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

2 authors at 1 institution in 1 country.

Slavena VylkovaDepartment of Microbiology and Molecular Genetics, The University of Texas Health Science Center, Houston, Texas, USA Slavena.Vylkova@hki-jena.de Michael.Lorenz@uth.tmc.edu.
Michael C LorenzDepartment of Microbiology and Molecular Genetics, The University of Texas Health Science Center, Houston, Texas, USA Slavena.Vylkova@hki-jena.de Michael.Lorenz@uth.tmc.edu.
The University of Texas Health Science Center at Houston · US

Funding

Roles of acetate metabolism in the virulence of Candida albicansR01AI075091 · NIAID · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI LORENZ, MICHAEL C · 2007 to 2017
$4.0M
NIAID NIH HHS R01 AI075091
6 · The paper itself

Abstract

The interaction of Candida albicans with the innate immune system is the key determinant of the pathogen/commensal balance and has selected for adaptations that facilitate the utilization of nutrients commonly found within the host, including proteins and amino acids; many of the catabolic pathways needed to assimilate these compounds are required for persistence in the host. We have shown that C. albicans co-opts amino acid catabolism to generate and excrete ammonia, which raises the extracellular pH, both in vitro and in vivo and induces hyphal morphogenesis. Mutants defective in the uptake or utilization of amino acids, such as those lacking STP2, a transcription factor that regulates the expression of amino acid permeases, are impaired in multiple aspects of fungus-macrophage interactions resulting from an inability to neutralize the phagosome. Here we identified a novel role in amino acid utilization for Ahr1p, a transcription factor previously implicated in regulation of adherence and hyphal morphogenesis. Mutants lacking AHR1 were defective in growth, alkalinization, and ammonia release on amino acid-rich media, similar to stp2Δ and ahr1Δ stp2Δ cells, and occupied more acidic phagosomes. Notably, ahr1Δ and stp2Δ strains did not induce pyroptosis, as measured by caspase-1-dependent interleukin-1β release, though this phenotype could be suppressed by pharmacological neutralization of the phagosome. Altogether, we show that C. albicans-driven neutralization of the phagosome promotes hyphal morphogenesis, sufficient for induction of caspase-1-mediated macrophage lysis.

Indexed as

Candida albicansCandidiasisCaspase 1Cell LineFungal ProteinsHost-Pathogen InteractionsHyphaeImmunity, InnateInterleukin-1betaMacrophagesMutationPhagosomesPyroptosisTranscription FactorsCaspase 1Fungal ProteinsInterleukin-1betaTranscription FactorsAhr1alkalinizationCandida albicansmacrophagespyroptosis

Identifiers

PMID27872238
PMCPMC5278172
OpenAlexW2550262882

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.