Evidence map›Paper›PMID 31500648›Full record

ArticleCell communication and signaling : CCS2019

Nonlytic exocytosis of Cryptococcus neoformans from neutrophils in the brain vasculature.

Xiaofan Yang, Huijuan Wang, Fan Hu, Xichen Chen, Mingshun Zhang

Open access · goldAbstract read
In one paragraph

Article in Cell communication and signaling : CCS, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.1field-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

12 citing papers in PubMed, 18 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Innate Pulmonary Phagocytes and Their Interactions with PathogenicJournal of fungi (Basel, Switzerland) · 2023
    Review
  7. Article
  8. Review
  9. Review
  10. Review
  11. Animal Models ofFrontiers in immunology · 2020
    Review
  12. Fine Particulate Matter (PMFrontiers in microbiology · 2020
    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

5 authors at 1 institution in 1 country.

Xiaofan YangThe Laboratory Center for Basic Medical Sciences, Nanjing Medical University, Nanjing, 211166, China.
Huijuan WangDepartment of Immunology, Nanjing Medical University, Nanjing, 211166, China.
Fan HuState Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, China.
Xichen ChenAnalysis center, Nanjing Medical University, Nanjing, 211166, China.
Mingshun ZhangDepartment of Immunology, Nanjing Medical University, Nanjing, 211166, China. mingshunzhang@njmu.edu.cn.ORCID 0000-0001-5925-0168
Nanjing Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCryptococcus neoformans (C. neoformans) is an encapsulated budding yeast that causes life-threatening meningoencephalitis in immunocompromised individuals, especially those with acquired immunodeficiency syndrome (AIDS). To cause meningoencephalitis, C. neoformans circulating in the bloodstream must first be arrested in the brain microvasculature. Neutrophils, the most abundant phagocytes in the bloodstream and the first leukocytes to be recruited to an infection site, can ingest C. neoformans. Little is known about how neutrophils interact with arrested fungal cells in the brain microvasculature.

methodsA blood-brain barrier (BBB) in vitro model was established. The interactions between neutrophils adhering to brain endothelial cells and fungi were observed under a live cell imaging microscope. A flow cytometry assay was developed to explore the mechanisms. Immunofluorescence staining of brain tissues was utilized to validate the in vitro phenomena.

resultsUsing real-time imaging, we observed that neutrophils adhered to a monolayer of mouse brain endothelial cells could expel ingested C. neoformans without lysis of the neutrophils or fungi in vitro, demonstrating nonlytic exocytosis of fungal cells from neutrophils. Furthermore, nonlytic exocytosis of C. neoformans from neutrophils was influenced by either the fungus (capsule and viability) or the neutrophil (phagosomal pH and actin polymerization). Moreover, nonlytic exocytosis of C. neoformans from neutrophils was recorded in brain tissue.

conclusionThese results highlight a novel function by which neutrophils extrude C. neoformans in the brain vasculature.

Indexed as

ExocytosisAnimalsBlood-Brain BarrierBrainCell AdhesionCryptococcus neoformansMiceMice, Inbred C57BLModels, BiologicalNeutrophilsBrainC. neoformansNeutrophilsNonlytic exocytosisreal-time imaging

Identifiers

PMID31500648
PMCPMC6734394
OpenAlexW2972342177

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Registered trials

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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.