Evidence map›Paper›PMID 19414556›Full record

ArticleThe Journal of experimental medicine2009

Role of breast regression protein 39 (BRP-39)/chitinase 3-like-1 in Th2 and IL-13-induced tissue responses and apoptosis.

Chun Geun Lee, Dominik Hartl, Gap Ryol Lee, Barbara Koller, Hiroshi Matsuura, Carla A Da Silva, Myung Hyun Sohn, Lauren Cohn, Robert J Homer, Alexander A Kozhich and 7 more

Open access · greenAbstract read
In one paragraph

Article in The Journal of experimental medicine, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 242 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
242citing papers in PubMed, 4 pooled it
13.0field-weighted citation impact, top 1% 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

242 citing papers in PubMed, 4 syntheses or guidelines pooled it, 442 citations in OpenAlex.

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182 more citing papers are in PubMed but not listed here.

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

17 authors at 2 institutions in 1 country.

Chun Geun LeeSection of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06520, USA.
Dominik Hartl
Gap Ryol Lee
Barbara Koller
Hiroshi Matsuura
Carla A Da Silva
Myung Hyun Sohn
Lauren Cohn
Robert J Homer
Alexander A Kozhich
Alison Humbles
Jennifer Kearley
Anthony Coyle
Geoffrey Chupp
Jennifer Reed
Richard A Flavell
Jack A Elias
Pulmonary and Critical Care Associates · USYale University · US

Funding

Transgenic Modeling of TGF-Beta in the LungR01HL064242 · NHLBI · YALE UNIVERSITY · PI ELIAS, JACK A · 1999 to 2007
$2.7M
Genetic Factors Controlling Effector Function of TGF-beta in COPD and FibrosisR01HL084225 · NHLBI · YALE UNIVERSITY · PI LEE, CHUN GEUN · 2007 to 2011
$2.4M
AMCase and BRP-39 in Th2 Inflammation and AsthmaR01HL081639 · NHLBI · YALE UNIVERSITY · PI ELIAS, JACK A · 2005 to 2008
$1.6M
NHLBI NIH HHS R01 HL064242NHLBI NIH HHS R01-HL-064242NHLBI NIH HHS R01 HL081639NHLBI NIH HHS R01-HL-081639NHLBI NIH HHS R01 HL084225NHLBI NIH HHS R01-HL-084225
6 · The paper itself

Abstract

Mouse breast regression protein 39 (BRP-39; Chi3l1) and its human homologue YKL-40 are chitinase-like proteins that lack chitinase activity. Although YKL-40 is expressed in exaggerated quantities and correlates with disease activity in asthma and many other disorders, the biological properties of BRP-39/YKL-40 have only been rudimentarily defined. We describe the generation and characterization of BRP-39(-/-) mice, YKL-40 transgenic mice, and mice that lack BRP-39 and produce YKL-40 only in their pulmonary epithelium. Studies of these mice demonstrated that BRP-39(-/-) animals have markedly diminished antigen-induced Th2 responses and that epithelial YKL-40 rescues the Th2 responses in these animals. The ability of interleukin13 to induce tissue inflammation and fibrosis was also markedly diminished in the absence of BRP-39. Mechanistic investigations demonstrated that BRP-39 and YKL-40 play an essential role in antigen sensitization and immunoglobulin E induction, stimulate dendritic cell accumulation and activation, and induce alternative macrophage activation. These proteins also inhibit inflammatory cell apoptosis/cell death while inhibiting Fas expression, activating protein kinase B/AKT, and inducing Faim 3. These studies establish novel regulatory roles for BRP-39/YKL-40 in the initiation and effector phases of Th2 inflammation and remodeling and suggest that these proteins are therapeutic targets in Th2- and macrophage-mediated disorders.

Indexed as

AdipokinesAnimalsApoptosisAsthmaChitinase-3-Like Protein 1Conserved SequenceCoronary DiseaseGlycoproteinsHumansImmunoglobulin EInflammationInterleukin-13LectinsMiceMice, KnockoutMice, TransgenicAdipokinesCHI3L1 protein, humanChil1 protein, mouseChitinase-3-Like Protein 1GlycoproteinsImmunoglobulin EInterleukin-13LectinsOvalbumin

Identifiers

PMID19414556
PMCPMC2715037
OpenAlexW2160395680

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.