Evidence map›Paper›PMID 12640126›Full record

ArticleMolecular and cellular biology2003

Myocardin is a critical serum response factor cofactor in the transcriptional program regulating smooth muscle cell differentiation.

Kevin L Du, Hon S Ip, Jian Li, Mary Chen, Frederic Dandre, William Yu, Min Min Lu, Gary K Owens, Michael S Parmacek

Open access · greenAbstract read
In one paragraph

Article in Molecular and cellular biology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 166 papers.

0numbers the graph read from it
0cells of the map it votes in
166citing papers in PubMed
9.8field-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

166 citing papers in PubMed, 358 citations in OpenAlex.

  1. Spatial expression of myocardin protein in normal and disease states.American journal of physiology. Cell physiology · 2026
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  8. Developing Novel Genomic Risk Stratification Models in Soft Tissue and Uterine Leiomyosarcoma.Clinical cancer research : an official journal of the American Association for Cancer Research · 2024
    Article
  9. Review
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  11. The role of Gata3 in renin cell identity.American journal of physiology. Renal physiology · 2023
    Article
  12. Article
  13. Article
  14. Article
  15. Article
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  17. Article
  18. Article
  19. Article
  20. Review

106 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

9 authors at 3 institutions in 1 country.

Kevin L DuDepartment of Medicine, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania 19104, USA.
Hon S Ip
Jian Li
Mary Chen
Frederic Dandre
William Yu
Min Min Lu
Gary K Owens
Michael S Parmacek
University of Pennsylvania · USUniversity of Virginia · USThird Wave Systems (United States) · US

Funding

REG OF SM22 ALPHA TRANSCRIPTION IN SMOOTH MUSCLE CELLSR01HL056915 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI PARMACEK, MICHAEL S · 1997 to 2005
$1.6M
NHLBI NIH HHS HL56915NHLBI NIH HHS R01 HL056915
6 · The paper itself

Abstract

The SAP family transcription factor myocardin functionally synergizes with serum response factor (SRF) and plays an important role in cardiac development. To determine the function of myocardin in the smooth muscle cell (SMC) lineage, we mapped the pattern of myocardin gene expression and examined the molecular mechanisms underlying transcriptional activity of myocardin in SMCs and embryonic stem (ES) cells. The human and murine myocardin genes were expressed in vascular and visceral SMCs at levels equivalent to or exceeding those observed in the heart. During embryonic development, the myocardin gene was expressed abundantly in a precise, developmentally regulated pattern in SMCs. Forced expression of myocardin transactivated multiple SMC-specific transcriptional regulatory elements in non-SMCs. By contrast, myocardin-induced transactivation was not observed in SRF(-/-) ES cells but could be rescued by forced expression of SRF or the SRF DNA-binding domain. Furthermore, expression of a dominant-negative myocardin mutant protein or small-interfering-RNA-induced myocardin knockdown significantly reduced SM22 alpha promoter activity in SMCs. Most importantly, forced expression of myocardin activated expression of the SM22 alpha, smooth muscle alpha-actin, and calponin-h1 genes in undifferentiated mouse ES cells. Taken together, these data demonstrate that myocardin plays an important role in the SRF-dependent transcriptional program that regulates SMC development and differentiation.

Indexed as

Amino Acid SequenceAnimalsCell DifferentiationCells, CulturedCOS CellsDNA, ComplementaryGene Expression Regulation, DevelopmentalHumansMiceMicrofilament ProteinsMolecular Sequence DataMuscle ProteinsMuscle, SmoothMuscle, Smooth, VascularMyocardinMyocardiumDNA, ComplementaryMicrofilament ProteinsMuscle ProteinsMyocardinNuclear ProteinsRNA, Small InterferingSerum Response FactorTagln protein, mouseTrans-Activatorstransgelin

Identifiers

PMID12640126
PMCPMC150745
OpenAlexW2110743056

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.