Evidence map›Paper›PMID 20348384›Full record

ArticleEukaryotic cell2010

Fluconazole transport into Candida albicans secretory vesicles by the membrane proteins Cdr1p, Cdr2p, and Mdr1p.

Luiz R Basso, Charles E Gast, Yuxin Mao, Brian Wong

Open access · diamondAbstract read
In one paragraph

Article in Eukaryotic cell, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
0.9field-weighted citation impact, top 26% 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

21 citing papers in PubMed, 24 citations in OpenAlex.

  1. Review
  2. Article
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  5. Application of the Mutant Libraries forInternational journal of molecular sciences · 2022
    Review
  6. Two Sequential Clinical Isolates ofAntibiotics (Basel, Switzerland) · 2021
    Article
  7. Article
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  9. Article
  10. Article
  11. Inflammatory Cell Recruitment inJournal of clinical medicine · 2019
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. The effect of biomaterials and antifungals on biofilm formation by Candida species: a review.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2012
    Review
  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

4 authors at 1 institution in 1 country.

Luiz R BassoDivision of Infectious Diseases, Department of Medicine, Oregon Health & Science University, 3181 S.W. Sam Jackson Park Road, Portland, OR 97239, USA.
Charles E Gast
Yuxin Mao
Brian Wong
Oregon Health & Science University · US

Funding

Mechanisms of drug resistance in Candida albicansR01AI064085 · NIAID · YALE UNIVERSITY · PI WONG, BRIAN · 2005 to 2007
$1.1M
NIAID NIH HHS R01 AI064085NIAID NIH HHS R01 AI-64085
6 · The paper itself

Abstract

A major cause of azole resistance in Candida albicans is overexpression of CDR1, CDR2, and/or MDR1, which encode plasma membrane efflux pumps. To analyze the catalytic properties of these pumps, we used ACT1- and GAL1-regulated expression plasmids to overexpress CDR1, CDR2, or MDR1 in a C. albicans cdr1 cdr2 mdr1-null mutant. When the genes of interest were expressed, the resulting transformants were more resistant to multiple azole antifungals, and accumulated less [(3)H]fluconazole intracellularly, than empty-vector controls. Next, we used a GAL1-regulated dominant negative sec4 allele to cause cytoplasmic accumulation of post-Golgi secretory vesicles (PGVs), and we found that PGVs isolated from CDR1-, CDR2-, or MDR1-overexpressing cells accumulated much more [(3)H]fluconazole than did PGVs from empty-vector controls. The K(m)s (expressed in micromolar concentrations) and V(max)s (expressed in picomoles per milligram of protein per minute), respectively, for [(3)H]fluconazole transport were 0.8 and 0.91 for Cdr1p, 4.3 and 0.52 for Cdr2p, and 3.5 and 0.59 for Mdr1p. [(3)H]fluconazole transport by Cdr1p and Cdr2p required ATP and was unaffected by carbonyl cyanide 3-chlorophenylhydrazone (CCCP), whereas [(3)H]fluconazole transport by Mdr1p did not require ATP and was inhibited by CCCP. [(3)H]fluconazole uptake by all 3 pumps was inhibited by all other azoles tested, with 50% inhibitory concentrations (IC(50)s; expressed as proportions of the [(3)H]fluconazole concentration) of 0.2 to 5.6 for Cdr1p, 0.3 to 3.1 for Cdr2p, and 0.3 to 3.1 for Mdr1p. The methods used in this study may also be useful for studying other plasma membrane transporters in C. albicans and other medically important fungi.

Indexed as

Antifungal AgentsCandida albicansFluconazoleFungal ProteinsMembrane ProteinsMembrane Transport ProteinsSecretory VesiclesAntifungal AgentsCDR1 protein, Candida albicansFluconazoleFungal ProteinsMembrane ProteinsMembrane Transport Proteins

Identifiers

PMID20348384
PMCPMC2901649
OpenAlexW2102557609

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.