Evidence map›Paper›PMID 25752588›Full record

ArticleBritish journal of pharmacology2015

α-Galactosylceramide suppresses murine eosinophil production through interferon-γ-dependent induction of NO synthase and CD95.

Maria Ignez Gaspar-Elsas, Túlio Queto, Daniela Masid-de-Brito, Bruno Marques Vieira, Bianca de Luca, Fernando Queiroz Cunha, Pedro Xavier-Elsas

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Article in British journal of pharmacology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.4field-weighted citation impact, top 36% 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

3 citing papers in PubMed, 9 citations in OpenAlex.

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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

7 authors at 2 institutions in 1 country.

Maria Ignez Gaspar-ElsasDepartment of Pediatrics, Instituto Nacional de Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira, FIOCRUZ, Rio de Janeiro, Brazil.
Túlio QuetoDepartment of Pediatrics, Instituto Nacional de Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira, FIOCRUZ, Rio de Janeiro, Brazil.
Daniela Masid-de-BritoDepartment of Immunology, Instituto de Microbiologia Prof. Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.
Bruno Marques VieiraDepartment of Pediatrics, Instituto Nacional de Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira, FIOCRUZ, Rio de Janeiro, Brazil.
Bianca de LucaDepartment of Pediatrics, Instituto Nacional de Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira, FIOCRUZ, Rio de Janeiro, Brazil.
Fernando Queiroz CunhaDepartment of Pharmacology, Faculdade de Medicina da USP (FMRP-USP), Ribeirão Preto, Brazil.
Pedro Xavier-ElsasDepartment of Pharmacology, Faculdade de Medicina da USP (FMRP-USP), Ribeirão Preto, Brazil.
Fundação Oswaldo Cruz · BRUniversidade Federal do Rio de Janeiro · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeα-Galactosylceramide (α-GalCer), a pleiotropic immunomodulator with therapeutic potential in neoplastic, autoimmune and allergic diseases, activates invariant natural killer T-cells throughCD1-restricted receptors for α-GalCer on antigen-presenting cells, inducing cytokine secretion. However the haemopoietic effects of α-GalCer remain little explored. EXPERIMENTAL APPROACH: α-GalCer-induced modulation of eosinophil production in IL-5-stimulated bone marrow cultures was examined in wild-type (BALB/c, C57BL/6) mice and their mutants lacking CD1, inducible NOS (iNOS), CD95 and IFN-γ, along with the effects of lymphocytes; IFN-γ; caspase and iNOS inhibitors; non-steroidal anti-inflammatory drugs (NSAIDs) and LTD4 ; and dexamethasone. KEY

resultsα-GalCer (10(-6) -10(-8) M) suppressed IL-5-stimulated eosinopoiesis by inducing apoptosis. α-GalCer pretreatment in vivo (100 μg·kg(-1) , i.v.) suppressed colony formation by GM-CSF-stimulated bone marrow progenitors in semi-solid cultures. α-GalCer and dexamethasone synergistically promoted eosinophil maturation. Suppression of eosinophil production by α-GalCer was prevented by aminoguanidine and was undetectable in bone marrow lacking iNOS, CD95, CD28; or CD1d. Separation on Percoll gradients and depletion of CD3+ cells made bone marrow precursors unresponsive to α-GalCer. Responsiveness was restored with splenic lymphocytes. Experiments with (i) IFN-γ-deficient bone marrow, alone or co-cultured with spleen T-cells from wild-type, but not from CD1d-deficient, donors; (ii) IFN-γ neutralization; and (iii) recombinant IFN-γ, showed that these effects of α-GalCer were mediated by IFN-γ. Effects of α-GalCer on eosinophil production were blocked by LTD4 and NSAIDs. CONCLUSIONS AND IMPLICATIONS: α-GalCer activation of IFN-γ-secreting, CD1d-restricted lymphocytes induced iNOS-CD95-dependent apoptosis in developing eosinophils. This pathway is initiated by endogenous regulatory lymphocytes, antagonised by LTD4 , NSAIDs and aminoguanidine, and modified by dexamethasone.

Indexed as

AnimalsAntigens, CD1dBone Marrow CellsCD28 AntigensCells, CulturedDexamethasoneDinoprostoneEosinophilsfas ReceptorGalactosylceramidesGranulocyte-Macrophage Colony-Stimulating FactorInterferon-gammaLymphocytesMice, Inbred BALB CMice, Inbred C57BLMice, Knockoutalpha-galactosylceramideAntigens, CD1dCD1d antigen, mouseCD28 AntigensDexamethasoneDinoprostonefas ReceptorGalactosylceramidesGranulocyte-Macrophage Colony-Stimulating FactorInterferon-gammaNitric Oxide Synthase Type IINos2 protein, mouse

Identifiers

PMID25752588
PMCPMC4500368
OpenAlexW2159427574

What OpenQuestion holds

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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.