Evidence map›Paper›PMID 22015949›Full record

ArticleJournal of molecular medicine (Berlin, Germany)2012

An intronic MYLK variant associated with inflammatory lung disease regulates promoter activity of the smooth muscle myosin light chain kinase isoform.

Yoo Jeong Han, Shwu-Fan Ma, Michael S Wade, Carlos Flores, Joe G N Garcia

Abstract read
PubMed Publisher
In one paragraph

Article in Journal of molecular medicine (Berlin, Germany), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 23% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 22 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Hypoxic modulation of fetal vascular MLCK abundance, localization, and function.American journal of physiology. Regulatory, integrative and comparative physiology · 2021
    Article
  4. Article
  5. Article
  6. Epigenetic contribution of the myosin light chain kinase gene to the risk for acute respiratory distress syndrome.Translational research : the journal of laboratory and clinical medicine · 2017
    Article
  7. Mechanical Stress and Single Nucleotide Variants Regulate Alternative Splicing of the MYLK Gene.American journal of respiratory cell and molecular biology · 2017
    Article
  8. Article
  9. Article
  10. Article
  11. Nonmuscle myosin light chain kinase regulates murine asthmatic inflammation.American journal of respiratory cell and molecular biology · 2014
    Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. 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

5 authors at 3 institutions in 2 countries.

Yoo Jeong HanSection of Pulmonary and Critical Care, Department of Medicine, University of Chicago, Chicago, IL 60637, USA.
Shwu-Fan Ma
Michael S Wade
Carlos Flores
Joe G N Garcia
University of Chicago · USUniversity of Illinois Chicago · USInstituto de Salud Carlos III · ES

Funding

Tissue Culture Biomechanical CoreP01HL058064 · NHLBI · UNIVERSITY OF ILLINOIS AT CHICAGO · PI LAL, RATNESHWAR · 1998 to 2012
$27.8M
Regulation of Asthmatic Inflammation by Non-Muscle MLCKR01HL091889 · NHLBI · UNIVERSITY OF ILLINOIS AT CHICAGO · PI GARCIA, JOE G. N., WANG, TING · 2008 to 2018
$3.2M
NHLBI NIH HHS HL58064NHLBI NIH HHS HL91889NHLBI NIH HHS R01 HL091889
6 · The paper itself

Abstract

Intronic single-nucleotide polymorphisms (SNPs) are commonly associated with complex diseases but exhibit unknown biologic functionality. Myosin light-chain kinase (MLCK), a central cytoskeletal regulator encoded by MYLK, plays a key pathophysiological role in complex diseases including acute lung injury (ALI) and asthma. We studied the potential regulatory roles of two intronic MYLK SNPs (rs936170 and rs820336) previously associated with ALI and asthma. Due to their genomic location at the junction encoding the non-muscle and smooth muscle MLCK (smMLCK) isoforms, we first identified the transcription start site (TSS) of the smMLCK isoform, and isolated a 2,954-bp DNA fragment upstream of the smMLCK TSS. Serial 5' deletion of the fragment revealed a proximal promoter region exhibiting strong promoter activity with potential inhibitory elements in the distal region. Site-directed mutageneses and luciferase reporter assays showed no effect of the distal promoter SNP rs936170 on smMLCK promoter activity. In contrast, SNP rs820336, located in an enhancer/repressor region downstream of TSS, was identified to regulate smMLCK promoter activity in an allelic-dependent manner. The A allele interrupted the binding site for Forkhead box protein N1 (FOXN1), a transcription factor governing expression of immune response genes. Silencing of FOXN1 expression (siRNA) reduced FOXN1 interaction with cis-regulatory elements in proximity to rs820336 and significantly decreased smMLCK expression. These functional insights into the involvement of intronic MYLK SNPs further strengthen the concept that MYLK contributes to inflammatory disease susceptibility and represents an attractive molecular target in complex inflammatory disorders.

Indexed as

Acute Lung InjuryAnimalsAsthmaCalcium-Binding ProteinsCells, CulturedElectrophoretic Mobility Shift AssayEnhancer Elements, GeneticForkhead Transcription FactorsGene SilencingGenes, ReporterGenetic Predisposition to DiseaseHeLa CellsHumansIntronsLung DiseasesMuscle, SmoothCalcium-Binding ProteinsForkhead Transcription FactorsMYLK protein, humanMyosin-Light-Chain KinaseProtein IsoformsWhn protein

Identifiers

PMID22015949
OpenAlexW1982126812

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.