Evidence map›Paper›PMID 18936186›Full record

ArticleInfection and immunity2009

Evidence of a role for monocytes in dissemination and brain invasion by Cryptococcus neoformans.

Caroline Charlier, Kirsten Nielsen, Samira Daou, Madly Brigitte, Fabrice Chretien, Françoise Dromer

Abstract 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 233 papers.

0numbers the graph read from it
0cells of the map it votes in
233citing papers in PubMed
9.4field-weighted citation impact, top 2% 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

233 citing papers in PubMed, 363 citations in OpenAlex.

  1. Trial
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  10. The Pain Is in the Brain With the Sugar-Coated Killer.The Journal of infectious diseases · 2025
    Review
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  14. Review
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  20. Review

173 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

6 authors at 5 institutions in 2 countries.

Caroline CharlierUnité de Mycologie Moléculaire, CNRS URA3012, Institut Pasteur, 25 rue du Dr. Roux, 75724 Paris Cedex 15, France.
Kirsten Nielsen
Samira Daou
Madly Brigitte
Fabrice Chretien
Françoise Dromer
Centre National de la Recherche Scientifique · FRInstitut Mondor de Recherche Biomédicale · FRInstitut Pasteur · FRUniversité Paris-Est Créteil · FRUniversity of Minnesota Medical Center · US

Funding

A link between mating pheromone sensing and virulence of Cryptococcus neoformansK22AI070152 · NIAID · UNIVERSITY OF MINNESOTA · PI NIELSEN, KIRSTEN · 2008 to 2009
$267k
NIAID NIH HHS K22 AI070152
6 · The paper itself

Abstract

The pathogenesis of cryptococcosis, including the events leading to the production of meningoencephalitis, is still largely unknown. Evidence of a transcellular passage of Cryptococcus neoformans across the blood-brain barrier (BBB) and subsequent BBB disruption exists, but the paracellular passage of free yeasts and the role of monocytes in yeast dissemination and brain invasion (Trojan horse method) remain uncertain. We used our model of disseminated cryptococcosis, in which crossing of the BBB starts 6 h after intravenous inoculation, to study paracellular passage of the BBB. We prepared bone marrow-derived monocytes (BMDM) infected in vitro with C. neoformans (BMDM yeasts) and free yeasts and measured fungal loads in tissues. (i) Spleen and lung CFU were >2-fold higher in mice treated with BMDM yeasts than in those treated with free yeasts for 1 and 24 h (P < 0.05), while brain CFU were increased (3.9 times) only at 24 h (P < 0.05). (ii) By comparing the kinetics of brain invasion in naïve mice and in mice with preestablished cryptococcosis, we found that CFU were lower in the latter case, except at 6 h, when CFU from mice inoculated with BMDM yeasts were comparable to those measured in naïve mice and 2.5-fold higher than those in mice with preestablished cryptococcosis who were inoculated with free yeasts. (iii) Late phagocyte depletion obtained by clodronate injection reduced disease severity and lowered the fungal burden by 40% in all organs studied. These results provide evidence for Trojan horse crossing of the BBB by C. neoformans, together with mechanisms involving free yeasts, and overall for a role of phagocytes in fungal dissemination.

Indexed as

AnimalsBrainColony Count, MicrobialCryptococcosisCryptococcus neoformansLeukocyte Reduction ProceduresLungMaleMeningoencephalitisMiceMice, Inbred BALB CMonocytesSpleen

Identifiers

PMID18936186
PMCPMC2612285
OpenAlexW2100317350

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.