Evidence map›Paper›PMID 19019087›Full record

ArticleImmunology2009

Induction of lymphotoxin-alpha by interleukin-12 p40 homodimer, the so-called biologically inactive molecule, but not IL-12 p70.

Malabendu Jana, Kalipada Pahan

Open access · bronzeAbstract read
In one paragraph

Article in Immunology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 14% 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

28 citing papers in PubMed, 1 synthesis or guideline pooled it, 43 citations in OpenAlex.

  1. Pooled it
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  12. IL-12 p40 monomer is different from other IL-12 family members to selectively inhibit IL-12Rβ1 internalization and suppress EAE.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
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  16. Selective neutralization of IL-12 p40 monomer induces death in prostate cancer cells via IL-12-IFN-γ.Proceedings of the National Academy of Sciences of the United States of America · 2017
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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

2 authors at 1 institution in 1 country.

Malabendu JanaDepartment of Neurological Sciences, Rush University Medical Center, Chicago, IL 60612, USA. malubendu_jana@rush.edu
Kalipada Pahan
Rush University Medical Center · US

Funding

ACTIVATION OF NF-KB IN GLIAL CELLS AND CNS OF EAER01NS039940 · NINDS · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI PAHAN, KALIPADA · 2001 to 2009
$2.7M
Statin and Phenylacetate in MPTP Mouse ModelR21NS048923 · NINDS · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI PAHAN, KALIPADA · 2006 to 2007
$327k
NINDS NIH HHS NS39940NINDS NIH HHS NS48923NINDS NIH HHS R01 NS039940NINDS NIH HHS R21 NS048923
6 · The paper itself

Abstract

Interleukin-12 (IL-12) p70 (p40:p35) is a bioactive cytokine and its biological functions are becoming clear. On the other hand, the IL-12 p40 homodimer (p40(2)) was considered an inactive or inhibitory molecule and its functions are poorly understood. It has been reported that increased expression of lymphotoxin-alpha (Lt-alpha) in the central nervous system as well as in peripheral immune cells is associated with multiple sclerosis and experimental allergic encephalomyelitis. Here we describe that p40(2) induces the expression of Lt-alpha in primary mouse and human microglia, BV-2 microglial cells, splenic macrophages, RAW 264.7 cells and splenic T cells. Interestingly, IL-12 p70 was either unable to induce Lt-alpha or was a very weak inducer of Lt-alpha in these cell types. Consistently, p40(2), but not p70, induced Lt-alpha promoter-driven luciferase activity in microglial cells. Among various stimuli tested, p40(2) emerged as the most potent followed by IL-16, lipopolyaccharide and double-stranded RNA in inducing the activation of Lt-alpha promoter in microglial cells. Furthermore, an increase in Lt-alpha messenger RNA expression by overexpression of p40, but not p35, complementary DNA and induction of Lt-alpha expression by p40(2) in microglia isolated from IL-12p35(-/-) mice confirm that p40, but not p35, is responsible for the induction of Lt-alpha. Finally, by using primary microglia from IUL-12 receptor beta1 deficient (IL-12Rbeta1(-/-)) and IL-12Rbeta2(-/-) mice, we demonstrate that p40(2) induced the expression of Lt-alpha in microglia and macrophages via IL-12Rbeta1, but not IL-12Rbeta2. These studies delineate a novel biological function of p40(2) that is absent in IL-12.

Indexed as

AnimalsCells, CulturedDNA, ComplementaryDose-Response Relationship, ImmunologicHumansInflammation MediatorsInterleukin-12Interleukin-12 Receptor beta 1 SubunitLymphotoxin-alphaMacrophages, PeritonealMiceMicrogliaReceptors, Interleukin-12Reverse Transcriptase Polymerase Chain ReactionT-LymphocytesDNA, ComplementaryIl12rb1 protein, mouseIl12rb2 protein, mouseInflammation MediatorsInterleukin-12Interleukin-12 Receptor beta 1 SubunitLymphotoxin-alphaReceptors, Interleukin-12

Identifiers

PMID19019087
PMCPMC2712100
OpenAlexW2058688962

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.