Evidence map›Paper›PMID 22661217›Full record

ArticleMedical microbiology and immunology2013

Infection of neutrophil granulocytes with Leishmania major activates ERK 1/2 and modulates multiple apoptotic pathways to inhibit apoptosis.

Arup Sarkar, Eresso Aga, Uta Bussmeyer, Asima Bhattacharyya, Sonja Möller, Lars Hellberg, Martina Behnen, Werner Solbach, Tamás Laskay

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In one paragraph

Article in Medical microbiology and immunology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
3.8field-weighted citation impact, top 7% 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

31 citing papers in PubMed, 53 citations in OpenAlex.

  1. Frontiers in immunology · 2026
    Article
  2. Review
  3. Article
  4. An inclusive assessment of apoptosis mechanisms inCurrent research in parasitology & vector-borne diseases · 2025
    Review
  5. Review
  6. Review
  7. Neutrophil Survival Signaling DuringFrontiers in cellular and infection microbiology · 2022
    Article
  8. Management of cell death in parasitic infections.Seminars in immunopathology · 2021
    Review
  9. Review
  10. Role of Host and Parasite MIF Cytokines duringTropical medicine and infectious disease · 2020
    Review
  11. Article
  12. Review
  13. Infection of Human Neutrophils WithFrontiers in cellular and infection microbiology · 2019
    Article
  14. Article
  15. Article
  16. Article
  17. Frontiers in microbiology · 2018
    Review
  18. Survival Mechanisms Used by SomeFrontiers in immunology · 2017
    Review
  19. Influence of Microbes on Neutrophil Life and Death.Frontiers in cellular and infection microbiology · 2017
    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

9 authors at 3 institutions in 3 countries.

Arup SarkarInstitute for Medical Microbiology and Hygiene, University of Lübeck, Lübeck, Germany.
Eresso Aga
Uta Bussmeyer
Asima Bhattacharyya
Sonja Möller
Lars Hellberg
Martina Behnen
Werner Solbach
Tamás Laskay
University of Lübeck · DENational Institute of Science Education and Research · INNew York University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Neutrophil granulocytes provide the first line of defense against bacterial, fungal, and parasitic infections. They phagocytose and kill many invading pathogens. Certain pathogenic microorganisms such as the intracellular protozoan parasite Leishmania major (L. major) can survive inside neutrophils. Mature neutrophils have a very short life span due to spontaneous apoptosis. Previously, we have reported that infections with L. major are able to delay spontaneous apoptosis. In the present study, we addressed the underlying mechanisms of regulation of both extrinsic and intrinsic apoptosis. We show that interaction with L. major transiently activates ERK1/2 phosphorylation. Pharmacological inhibition of ERK1/2 phosphorylation reversed the apoptosis delay. Moreover, infection leads to the enhanced and sustainable expression of the anti-apoptotic proteins Bcl-2 and Bfl-1, respectively. As downstream events, the release of cytochrome c from mitochondria and processing of caspase-6 were inhibited. We also confirm that infection with L. major results in reduced FAS expression on the surface of neutrophils. The presented data indicate that infection with L. major affects both intrinsic as well as extrinsic pathways of neutrophil apoptosis. Enhanced life span of host neutrophils enables the parasite to survive within neutrophils.

Indexed as

ApoptosisCaspase 6Cells, CulturedCytochromes cfas ReceptorHumansLeishmania majorMAP Kinase Signaling SystemMitochondriaNeutrophilsProto-Oncogene Proteins c-bcl-2Caspase 6Cytochromes cfas ReceptorProto-Oncogene Proteins c-bcl-2

Identifiers

PMID22661217
OpenAlexW2001025596

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.