Evidence map›Paper›PMID 26240140›Full record

ArticleThe Journal of biological chemistry2015

Phagosomal Acidification Prevents Macrophage Inflammatory Cytokine Production to Malaria, and Dendritic Cells Are the Major Source at the Early Stages of Infection: IMPLICATION FOR MALARIA PROTECTIVE IMMUNITY DEVELOPMENT.

Xianzhu Wu, Nagaraj M Gowda, D Channe Gowda

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
3.3field-weighted citation impact, top 8% 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 33 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Article
  6. Review
  7. Lessons Learned for Pathogenesis, Immunology, and Disease of Erythrocytic Parasites:Frontiers in cellular and infection microbiology · 2021
    Review
  8. The host targeting effect of chloroquine in malaria.Current opinion in immunology · 2020
    Review
  9. Review
  10. Article
  11. Review
  12. Article
  13. Review
  14. Article
  15. Article
  16. Cytokines and Chemokines in Cerebral Malaria Pathogenesis.Frontiers in cellular and infection microbiology · 2017
    Review
  17. Interaction betweenFrontiers in cellular and infection microbiology · 2017
    Article
  18. Article
  19. 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

3 authors at 1 institution in 1 country.

Xianzhu WuFrom the Department of Biochemistry and Molecular Biology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania 17033.
Nagaraj M GowdaFrom the Department of Biochemistry and Molecular Biology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania 17033.
D Channe GowdaFrom the Department of Biochemistry and Molecular Biology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania 17033 gowda@psu.edu.ORCID http://orcid.org/0000-0002-6860-5108
Pennsylvania State University · US

Funding

Innate Immune Responses to Malaria ParasitesR01AI041139 · NIAID · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI GOWDA, CHANNE D · 1998 to 2017
$5.8M
Therapeutic targeting of malarial placental cytoadherenceR01AI104844 · NIAID · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI GOWDA, CHANNE D · 2015 to 2019
$2.4M
NIAID NIH HHS R01 AI041139NIAID NIH HHS R01 AI41139
6 · The paper itself

Abstract

Inflammatory cytokines produced at the early stages of malaria infection contribute to shaping protective immunity and pathophysiology. To gain mechanistic insight into these processes, it is important to understand the cellular origin of cytokines because both cytokine input and cytokine-producing cells play key roles. Here, we determined cytokine responses by monocytes, macrophages, and dendritic cells (DCs) to purified Plasmodium falciparum and Plasmodium berghei ANKA, and by spleen macrophages and DCs from Plasmodium yoelii 17NXL-infected and P. berghei ANKA-infected mice. The results demonstrate that monocytes and macrophages do not produce inflammatory cytokines to malaria parasites and that DCs are the primary source early in infection, and DC subsets differentially produce cytokines. Importantly, blocking of phagosomal acidification by inhibiting vacuolar-type H(+)-ATPase enabled macrophages to elicit cytokine responses. Because cytokine responses to malaria parasites are mediated primarily through endosomal Toll-like receptors, our data indicate that the inability of macrophages to produce cytokines is due to the phagosomal acidification that disrupts endosomal ligand-receptor engagement. Macrophages efficiently produced cytokines to LPS upon simultaneously internalizing parasites and to heat-killed Escherichia coli, demonstrating that phagosomal acidification affects endosomal receptor-mediated, but not cell surface receptor-mediated, recognition of Toll-like receptor agonists. Enabling monocytes/macrophages to elicit immune responses to parasites by blocking endosomal acidification can be a novel strategy for the effective development of protective immunity to malaria. The results have important implications for enhancing the efficacy of a whole parasite-based malaria vaccine and for designing strategies for the development of protective immunity to pathogens that induce immune responses primarily through endosomal receptors.

Indexed as

Adaptive ImmunityAnimalsCytokinesDendritic CellsHumansHydrogen-Ion ConcentrationInflammationMalariaMicePhagosomesPlasmodiumVacuolar Proton-Translocating ATPasesCytokinesVacuolar Proton-Translocating ATPasescytokine inductioninflammationinnate immunitymacrophagemalariaphagocytosisplasmodiumvacuolar acidification

Identifiers

PMID26240140
PMCPMC4645624
OpenAlexW1824987593

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.