Evidence map›Paper›PMID 18559630›Full record

ArticleThe journals of gerontology. Series A, Biological sciences and medical sciences2008

Sca-1-expressing nonmyogenic cells contribute to fibrosis in aged skeletal muscle.

Mats Hidestrand, Sonia Richards-Malcolm, Catherine M Gurley, Greg Nolen, Barry Grimes, Amanda Waterstrat, Gary Van Zant, Charlotte A Peterson

Open access · bronzeAbstract read
In one paragraph

Article in The journals of gerontology. Series A, Biological sciences and medical sciences, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
1.9field-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

27 citing papers in PubMed, 41 citations in OpenAlex.

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  17. Regulation of the muscle fiber microenvironment by activated satellite cells during hypertrophy.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2014
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  19. Automated image analysis of skeletal muscle fiber cross-sectional area.Journal of applied physiology (Bethesda, Md. : 1985) · 2013
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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

8 authors at 2 institutions in 1 country.

Mats HidestrandCollege of Health Sciences, University of Kentucky, 900 S. Limestone, CTW 105, Lexington, KY 40536-0200, USA.
Sonia Richards-Malcolm
Catherine M Gurley
Greg Nolen
Barry Grimes
Amanda Waterstrat
Gary Van Zant
Charlotte A Peterson
University of Arkansas for Medical Sciences · USUniversity of Kentucky · US

Funding

VIRULENCE MECHANISMS IN ESCHERICHIA COLIP20RR016460 · NCRR · UNIV OF ARKANSAS FOR MED SCIS · PI HENSLEY, LORI · 2001 to 2011
$33.1M
THE APOE-APP AXIS IN ALZHEIMER PATHOGENESISP01AG012411 · NIA · UNIV OF ARKANSAS FOR MED SCIS · PI GRIFFIN, SUE TILTON · 1995 to 2020
$25.0M
Changes in myogenic progenitor potential with ageR01AG020941 · NIA · UNIVERSITY OF KENTUCKY · PI PETERSON, CHARLOTTE A. · 2002 to 2010
$2.2M
NCRR NIH HHS P20 RR016460NCRR NIH HHS P20 RR-16460NIA NIH HHS AG12411NIA NIH HHS AG20941NIA NIH HHS P01 AG012411NIA NIH HHS R01 AG020941
6 · The paper itself

Abstract

We report an age-dependent increase in nonimmunohematopoietic cells (CD45neg) in regenerating muscle characterized by high stem-cell antigen (Sca-1) expression. In aged regenerating muscle, only 14% of these CD45negSca-1pos cells express MyoD, whereas 82% of CD45negSca-1(pos) cells are MyoDpos in young adult muscle. In vitro, CD45negMyoDnegSca-1pos cells overexpress fibrosis-promoting genes, potentially controlled by Wnt2. The cells are proliferative, nonmyogenic, and nonadipogenic, and arise in clonally derived myoblast cultures from aged mice. MyoDneg Sca-1pos nonmyogenic cells also emerge in C2C12 myoblast cultures at late passage. Both in vitro and in vivo studies suggest that MyoDnegSca-1pos cells from aged muscle are more susceptible to apoptosis than myoblasts, which may contribute to depletion of the satellite cell pool. Thus, with age, a subset of myoblasts takes on an altered phenotype, which is marked by high Sca-1 expression. These cells do not participate in muscle regeneration, and instead may contribute to muscle fibrosis in aged muscle.

Indexed as

AgingAnimalsAntigens, LyCells, CulturedFemaleFibrosisLeukocyte Common AntigensMembrane ProteinsMiceMice, Inbred DBAMuscle, SkeletalMyoD ProteinRegenerationAntigens, LyLeukocyte Common AntigensLy6a protein, mouseMembrane ProteinsMyoD Protein

Identifiers

PMID18559630
PMCPMC2755567
OpenAlexW2140500911

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.