Evidence map›Paper›PMID 19188358›Full record

ArticleInfection and immunity2009

Arginine-induced germ tube formation in Candida albicans is essential for escape from murine macrophage line RAW 264.7.

Suman Ghosh, Dhammika H M L P Navarathna, David D Roberts, Jake T Cooper, Audrey L Atkin, Thomas M Petro, Kenneth W Nickerson

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 96 papers.

0numbers the graph read from it
0cells of the map it votes in
96citing papers in PubMed
5.9field-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

96 citing papers in PubMed, 165 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Review
  9. Arginine inhibits cross-kingdom interactions and synergistic cariogenicity betweenFrontiers in cellular and infection microbiology · 2025
    Article
  10. Article
  11. Review
  12. Review
  13. Central Carbon Metabolism inJournal of fungi (Basel, Switzerland) · 2024
    Article
  14. The FVirulence · 2023
    Article
  15. Article
  16. Review
  17. Article
  18. Review
  19. Article
  20. Article

36 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

7 authors at 3 institutions in 1 country.

Suman GhoshSchool of Biological Sciences, University of Nebraska, Lincoln, NE 68588-0666, USA.
Dhammika H M L P Navarathna
David D Roberts
Jake T Cooper
Audrey L Atkin
Thomas M Petro
Kenneth W Nickerson
University of Nebraska–Lincoln · USCenter for Cancer Research · USUniversity of Nebraska Medical Center · US

Funding

Intramural NIH HHS
6 · The paper itself

Abstract

The opportunistic fungal pathogen Candida albicans is a part of the normal flora but it also causes systemic candidiasis if it reaches the bloodstream. Upon being phagocytized by macrophages, an important component of innate immunity, C. albicans rapidly upregulates a set of arginine biosynthetic genes. Arginine, urea, and CO2 induced hyphae in a density-dependent manner in wild-type, cph1/cph1, and rim101/rim101 strains but not in efg1/efg1 or cph1/cph1 efg1/efg1 strains. Arginase (Car1p) converts arginine to urea, which in turn is degraded by urea amidolyase (Dur1,2p) to produce CO2, a signal for hyphal switching. We used a dur1,2/dur1,2 mutant (KWN6) and the complemented strain, KWN8 (dur1,2/dur1,2::DUR1,2/DUR1,2) to study germ tube formation. KWN6 could not make germ tubes in the presence of arginine or urea but did in the presence of 5% CO(2), which bypasses Dur1,2p. We also tested the effect of arginine on the interaction between the macrophage line RAW 264.7 and several strains of C. albicans. Arginine activated an Efg1p-dependent yeast-to-hypha switch, enabling wild-type C. albicans and KWN8 to escape from macrophages within 6 h, whereas KWN6 was defective in this regard. Additionally, two mutants that cannot synthesize arginine, BWP17 and SN152, were defective in making hyphae inside the macrophages, whereas the corresponding arginine prototrophs, DAY286 and SN87, formed germ tubes and escaped from macrophages. Therefore, metabolism of arginine by C. albicans controls hyphal switching and provides an important mechanism for escaping host defense.

Indexed as

Gene Expression Regulation, FungalAnimalsArginineCandida albicansCell LineFungal ProteinsHyphaeMacrophagesMiceMutationArginineFungal Proteins

Identifiers

PMID19188358
PMCPMC2663133
OpenAlexW2116275559

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.