Evidence map›Paper›PMID 25612003›Full record

ArticleAmerican journal of respiratory cell and molecular biology2015

Pathologic Regulation of Collagen I by an Aberrant Protein Phosphatase 2A/Histone Deacetylase C4/MicroRNA-29 Signal Axis in Idiopathic Pulmonary Fibrosis Fibroblasts.

Wajahat Khalil, Hong Xia, Vidya Bodempudi, Judy Kahm, Polla Hergert, Karen Smith, Mark Peterson, Matthew Parker, Jeremy Herrera, Peter B Bitterman and 1 more

Open access · greenAbstract read
In one paragraph

Article in American journal of respiratory cell and molecular biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 1 pooled it
4.1field-weighted citation impact, top 6% 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

32 citing papers in PubMed, 1 synthesis or guideline pooled it, 51 citations in OpenAlex.

  1. A systematic review of overlapping microRNA patterns in systemic sclerosis and idiopathic pulmonary fibrosis.European respiratory review : an official journal of the European Respiratory Society · 2017
    Pooled it
  2. Dual αAmerican journal of respiratory and critical care medicine · 2025
    Trial
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  15. Article
  16. Review
  17. Metabolic Dysregulation in Idiopathic Pulmonary Fibrosis.International journal of molecular sciences · 2020
    Review
  18. miRNAs in Lung Development and Diseases.International journal of molecular sciences · 2020
    Review
  19. 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

11 authors at 1 institution in 1 country.

Wajahat KhalilDepartment of Medicine, University of Minnesota, Minneapolis, Minnesota.
Hong XiaDepartment of Medicine, University of Minnesota, Minneapolis, Minnesota.
Vidya BodempudiDepartment of Medicine, University of Minnesota, Minneapolis, Minnesota.
Judy KahmDepartment of Medicine, University of Minnesota, Minneapolis, Minnesota.
Polla HergertDepartment of Medicine, University of Minnesota, Minneapolis, Minnesota.
Karen SmithDepartment of Medicine, University of Minnesota, Minneapolis, Minnesota.
Mark PetersonDepartment of Medicine, University of Minnesota, Minneapolis, Minnesota.
Matthew ParkerDepartment of Medicine, University of Minnesota, Minneapolis, Minnesota.
Jeremy HerreraDepartment of Medicine, University of Minnesota, Minneapolis, Minnesota.
Peter B BittermanDepartment of Medicine, University of Minnesota, Minneapolis, Minnesota.
Craig A HenkeDepartment of Medicine, University of Minnesota, Minneapolis, Minnesota.
University of Minnesota · US

Funding

TRAINING-PULMONARY CELL &MOLECULAR BIOLOGY &PHYSIOLOGYT32HL007741 · NHLBI · UNIVERSITY OF MINNESOTA TWIN CITIES · PI DUDLEY, R. ADAMS, INGBAR, DAVID H · 1994 to 2023
$13.9M
Translational control of the fibroblast phenotype in IPFP01HL091775 · NHLBI · UNIVERSITY OF MINNESOTA · PI HENKE, CRAIG A · 2009 to 2013
$8.3M
Role of fibrotic extracellular matrix in generating the IPF FibroblastR01HL125236 · NHLBI · UNIVERSITY OF MINNESOTA · PI BITTERMAN, PETER B · 2015 to 2018
$1.9M
Integrin-Matrix Regulation of IPF Fibroblast PhenotypeR01HL125227 · NHLBI · UNIVERSITY OF MINNESOTA · PI HENKE, CRAIG A · 2015 to 2018
$1.8M
Translational Control in IPFR01HL089249 · NHLBI · UNIVERSITY OF MINNESOTA · PI BITTERMAN, PETER B · 2008 to 2011
$1.8M
Extracellular Matrix Regulation of Fibroblast ViabilityR01HL074882 · NHLBI · UNIVERSITY OF MINNESOTA TWIN CITIES · PI HENKE, CRAIG A · 2005 to 2008
$1.3M
NHLBI NIH HHS P01 HL091775NHLBI NIH HHS P01HL91775NHLBI NIH HHS R01 HL074882NHLBI NIH HHS R01HL074882NHLBI NIH HHS R01 HL089249NHLBI NIH HHS R01HL089249NHLBI NIH HHS R01 HL125227NHLBI NIH HHS R01 HL125236NHLBI NIH HHS T32 HL007741
6 · The paper itself

Abstract

Idiopathic pulmonary fibrosis (IPF) is characterized by the relentless expansion of fibroblasts depositing type I collagen within the alveolar wall and obliterating the alveolar airspace. MicroRNA (miR)-29 is a potent regulator of collagen expression. In IPF, miR-29 levels are low, whereas type I collagen expression is high. However, the mechanism for suppression of miR-29 and increased type I collagen expression in IPF remains unclear. Here we show that when IPF fibroblasts are seeded on polymerized type I collagen, miR-29c levels are suppressed and type I collagen expression is high. In contrast, miR-29c is high and type I collagen expression is low in control fibroblasts. We demonstrate that the mechanism for suppression of miR-29 during IPF fibroblast interaction with polymerized collagen involves inappropriately low protein phosphatase (PP) 2A function, leading to histone deacetylase (HDA) C4 phosphorylation and decreased nuclear translocation of HDAC4. We demonstrate that overexpression of HDAC4 in IPF fibroblasts restored miR-29c levels and decreased type I collagen expression, whereas knocking down HDAC4 in control fibroblasts suppressed miR-29c levels and increased type I collagen expression. Our data indicate that IPF fibroblast interaction with polymerized type I collagen results in an aberrant PP2A/HDAC4 axis, which suppresses miR-29, causing a pathologic increase in type I collagen expression.

Indexed as

Cell NucleusCells, CulturedCollagen Type IEpigenesis, GeneticFibroblastsHistone DeacetylasesHumansIdiopathic Pulmonary FibrosisMicroRNAsPhosphoprotein PhosphatasesPhosphorylationProtein Phosphatase 2CProtein Processing, Post-TranslationalProtein TransportRepressor ProteinsSignal TransductionCollagen Type IHDAC4 protein, humanHistone DeacetylasesMicroRNAsMIRN29a microRNA, humanPhosphoprotein PhosphatasesProtein Phosphatase 2CRepressor ProteinsHDAC4IPF fibroblastsmiR-29PP2Atype I collagen

Identifiers

PMID25612003
PMCPMC4566061
OpenAlexW1804140162

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.