Evidence map›Paper›PMID 36649220›Full record

ArticleMolecular biology and evolution2023

Antifungal Drug Concentration Impacts the Spectrum of Adaptive Mutations in Candida albicans.

Robert T Todd, Natthapon Soisangwan, Sam Peters, Bailey Kemp, Taylor Crooks, Aleeza Gerstein, Anna Selmecki

Open access · goldAbstract read
In one paragraph

Article in Molecular biology and evolution, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
9.1field-weighted citation impact, top 1% 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

37 citing papers in PubMed, 47 citations in OpenAlex.

  1. Article
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  10. Does the use of topical azoles have an impact on antifungal resistance?The Journal of antimicrobial chemotherapy · 2025
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  12. Heterogeneity ofMicrobiology spectrum · 2025
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  14. Genome research · 2025
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  15. Article
  16. Review
  17. Review
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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 2 countries.

Robert T ToddDepartment of Microbiology and Immunology, University of Minnesota Medical School, Minneapolis, Minnesota.
Natthapon SoisangwanDepartment of Microbiology and Immunology, University of Minnesota Medical School, Minneapolis, Minnesota.
Sam PetersDepartment of Microbiology and Immunology, University of Minnesota Medical School, Minneapolis, Minnesota.
Bailey KempDepartment of Microbiology and Immunology, University of Minnesota Medical School, Minneapolis, Minnesota.
Taylor CrooksDepartment of Microbiology and Immunology, University of Minnesota Medical School, Minneapolis, Minnesota.
Aleeza GersteinDepartment of Microbiology, The University of Manitoba, Winnipeg, Manitoba, Canada.ORCID 0000-0002-0781-9356
Anna SelmeckiDepartment of Microbiology and Immunology, University of Minnesota Medical School, Minneapolis, Minnesota.ORCID 0000-0003-3298-2400
University of Minnesota Medical Center · USUniversity of Minnesota · USUniversity of Manitoba · CA

Funding

Aneuploidy and Acquired Antifungal Drug Resistance in Candida speciesR01AI143689 · NIAID · UNIVERSITY OF MINNESOTA · PI Anna M. Selmecki · 2020 to 2026
$3.2M
NIAID NIH HHS R01 AI143689
6 · The paper itself

Abstract

Invasive fungal infections are a leading global cause of human mortality. Only three major classes of antifungal drugs are widely used, and resistance to all three classes can arise rapidly. The most widely prescribed antifungal drug, fluconazole, disseminates rapidly and reaches a wide range of concentrations throughout the body. The impact of drug concentration on the spectrum and effect of mutations acquired during adaptation is not known for any fungal pathogen, and how the specific level of a given stress influences the distribution of beneficial mutations has been poorly explored in general. We evolved 144 lineages from three genetically distinct clinical isolates of Candida albicans to four concentrations of fluconazole (0, 1, 8, and 64 μg/ml) and performed comprehensive phenotypic and genomic comparisons of ancestral and evolved populations. Adaptation to different fluconazole concentrations resulted in distinct adaptive trajectories. In general, lineages evolved to drug concentrations close to their MIC50 (the level of drug that reduces growth by 50% in the ancestor) tended to rapidly evolve an increased MIC50 and acquired distinct segmental aneuploidies and copy number variations. By contrast, lineages evolved to drug concentrations above their ancestral MIC50 tended to acquire a different suite of mutational changes and increased in drug tolerance (the ability of a subpopulation of cells to grow slowly above their MIC50). This is the first evidence that different concentrations of drug can select for different genotypic and phenotypic outcomes in vitro and may explain observed in vivo drug response variation.

Indexed as

Antifungal AgentsCandida albicansDrug Resistance, FungalDNA Copy Number VariationsFluconazoleMicrobial Sensitivity TestsMutationAntifungal AgentsFluconazoleaneuploidyantifungal drug resistanceantifungal drug toleranceCandida albicanscopy number variationpolyploidy

Identifiers

PMID36649220
PMCPMC9887641
OpenAlexW4316927633

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.