Establishment of clonal myogenic cell lines from severely affected dystrophic muscles - CDK4 maintains the myogenic population

Guido Stadler, Jennifer C J Chen, Kathryn Wagner, Jerome D. Robin, Jerry W. Shay, Charles P. Emerson Jr, Woodring E. Wright

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

Background: A hallmark of muscular dystrophies is the replacement of muscle by connective tissue. Muscle biopsies from patients severely affected with facioscapulohumeral muscular dystrophy (FSHD) may contain few myogenic cells. Because the chromosomal contraction at 4q35 linked to FSHD is thought to cause a defect within myogenic cells, it is important to study this particular cell type, rather than the fibroblasts and adipocytes of the endomysial fibrosis, to understand the mechanism leading to myopathy.Results: We present a protocol to establish clonal myogenic cell lines from even severely dystrophic muscle that has been replaced mostly by fat, using overexpression of CDK4 and the catalytic component of telomerase (human telomerase reverse transcriptase; hTERT), and a subsequent cloning step. hTERT is necessary to compensate for telomere loss during in vitro cultivation, while CDK4 prevents a telomere-independent growth arrest affecting CD56+ myogenic cells, but not their CD56- counterpart, in vitro.Conclusions: These immortal cell lines are valuable tools to reproducibly study the effect of the FSHD mutation within myoblasts isolated from muscles that have been severely affected by the disease, without the confounding influence of variable amounts of contaminating connective-tissue cells.

Original languageEnglish (US)
Article number12
JournalSkeletal Muscle
Volume1
Issue number1
DOIs
StatePublished - Mar 8 2011

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Facioscapulohumeral Muscular Dystrophy
Cell Line
Muscles
Telomere
Population
Connective Tissue Cells
Confounding Factors (Epidemiology)
Muscular Dystrophies
Myoblasts
Telomerase
Muscular Diseases
Adipocytes
Connective Tissue
Organism Cloning
Fibrosis
Fibroblasts
Fats
Biopsy
Mutation
Growth

ASJC Scopus subject areas

  • Molecular Biology
  • Cell Biology
  • Orthopedics and Sports Medicine

Cite this

Establishment of clonal myogenic cell lines from severely affected dystrophic muscles - CDK4 maintains the myogenic population. / Stadler, Guido; Chen, Jennifer C J; Wagner, Kathryn; Robin, Jerome D.; Shay, Jerry W.; Emerson Jr, Charles P.; Wright, Woodring E.

In: Skeletal Muscle, Vol. 1, No. 1, 12, 08.03.2011.

Research output: Contribution to journalArticle

Stadler, Guido ; Chen, Jennifer C J ; Wagner, Kathryn ; Robin, Jerome D. ; Shay, Jerry W. ; Emerson Jr, Charles P. ; Wright, Woodring E. / Establishment of clonal myogenic cell lines from severely affected dystrophic muscles - CDK4 maintains the myogenic population. In: Skeletal Muscle. 2011 ; Vol. 1, No. 1.
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