Evidence map›Paper›PMID 15616315›Full record

ArticleAntimicrobial agents and chemotherapy2005

Effects of antifungal interventions on the outcome of experimental infections with phenotypic switch variants of Cryptococcus neoformans.

Bettina C Fries, Emily Cook, Xiabo Wang, Arturo Casadevall

Abstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.0field-weighted citation impact, top 22% 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

15 citing papers in PubMed, 19 citations in OpenAlex.

  1. Insights on molecular drivers of phenotypic plasticity in Candidozyma auris.World journal of microbiology & biotechnology · 2026
    Review
  2. Article
  3. Review
  4. Review
  5. Review
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Phenotypic Switching in Fungi.Current fungal infection reports · 2008
    Article
  12. Review
  13. Article
  14. Phenotypic switching in Cryptococcus neoformans.Microbiology (Reading, England) · 2006
    Review
  15. 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

4 authors at 1 institution in 1 country.

Bettina C FriesDepartment of Medicine, Albert Einstein College of Medicine, Golding 702, 1300 Morris Park Ave., Bronx, New York 10461, USA. fries@aecom.yu.edu
Emily Cook
Xiabo Wang
Arturo Casadevall
Albert Einstein College of Medicine · US

Funding

Synergy of Host Defense Mechanisms in the LungR01HL059842 · NHLBI · YESHIVA UNIVERSITY · PI CASADEVALL, ARTURO · 1997 to 2023
$7.4M
PROTECTIVE ANTIBODIES FOR CRYPTOCOCCAL INFECTIONSR01AI033774 · NIAID · YESHIVA UNIVERSITY · PI CASADEVALL, ARTURO · 1994 to 2014
$5.6M
Molecular Characterization of C. neoformans AntibodiesR37AI033142 · NIAID · JOHNS HOPKINS UNIVERSITY · PI CASADEVALL, ARTURO · 2007 to 2016
$3.9M
response to phenotypic switch variants to C. neoformansR01AI059681 · NIAID · STATE UNIVERSITY NEW YORK STONY BROOK · PI FRIES, BETTINA · 2004 to 2014
$3.6M
MOLECULAR CHARACTERIZATION OF C NEOFORMANS ANTIBODIESR01AI033142 · NIAID · YESHIVA UNIVERSITY · PI CASADEVALL, ARTURO · 1994 to 2006
$1.7M
NHLBI NIH HHS HL059842NHLBI NIH HHS R01 HL059842NIAID NIH HHS AI033142NIAID NIH HHS AI033774NIAID NIH HHS AI059681NIAID NIH HHS R01 AI033142NIAID NIH HHS R01 AI033774NIAID NIH HHS R01 AI059681NIAID NIH HHS R37 AI033142
6 · The paper itself

Abstract

In cryptococcal infection, phenotypic switching from a smooth to a mucoid variant can occur in vivo, producing variants with enhanced virulence that are subsequently selected and affect the outcome of infection. Here, we demonstrate that antifungal treatment of the chronically infected host can promote this phenomenon. Amphotericin B treatment reduces fungal burden less effectively in mucoid variant-infected than in smooth variant-infected mice. Consequently, amphotericin B treatment resulted in a more pronounced prolongation of survival in smooth variant-infected than in mucoid variant-infected mice (20 versus 42 days; P < 0.05). Administration of anticapsular monoclonal antibody mediated better protection in smooth variant-infected than in mucoid variant-infected mice, although a protective effect was not consistently observed at all doses. Most interestingly, both antifungal drug therapy and administration of anticapsular monoclonal antibody promoted the selection of mucoid variants in smooth variant-infected mice, a phenomenon manifested by a statistically higher percentage of mucoid colonies in smooth variant-infected mice than in nontreated control mice. This finding suggests that both chemotherapeutic and immunological antifungal interventions may promote the selection of the more virulent mucoid variant, which could affect the outcome of infection in chronically infected hosts.

Indexed as

Amphotericin BAnimalsAntibodies, FungalAntifungal AgentsChronic DiseaseCryptococcosisCryptococcus neoformansHumansLung Diseases, FungalMaleMiceMice, Inbred BALB CMicrobial Sensitivity TestsPhenotypeTreatment OutcomeVirulenceAmphotericin BAntibodies, FungalAntifungal Agents

Identifiers

PMID15616315
PMCPMC538904
OpenAlexW2110726602

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.