Effect of daptomycin on primary rat muscle cell cultures in vitro

Tatiana Kostrominova, Scott Coleman, Frederick B. Oleson, John A. Faulkner, Lisa M. Larkin

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Daptomycin is a lipopeptide antibiotic that has strong bactericidal activity against Gram-positive bacteria and that was previously reported to exhibit minor side effects on skeletal muscle. This study was designed to further characterize the effect of daptomycin on skeletal muscle through the use of primary cultures of muscles from rats. Our investigations demonstrated that daptomycin has a concentration-dependent and time-dependent effect on the plasma membrane of primary cultures of differentiated, spontaneously contracting rat myotubes. No effects were evident in non-differentiated myoblasts or other mononucleated cells present in cultures even at the highest daptomycin concentrations tested (6,000 μg/mL). In cultures treated with daptomycin at a concentration of 2,000 μg/mL, plasma membrane damage was observed in ∼20-30% of differentiated myotubes; no myotube damage was detected at concentrations of 1,000 μg/mL and below. A transient loss of spontaneous myotube contractions was evident at 750 μg/mL, while at 2,000 μg/mL and above, a permanent loss of spontaneous contractility was observed. These results suggest that the putative targets for daptomycin effects on skeletal muscle are structures on the plasma membrane of highly differentiated myotubes.

Original languageEnglish (US)
Pages (from-to)613-618
Number of pages6
JournalIn Vitro Cellular and Developmental Biology - Animal
Volume46
Issue number7
DOIs
StatePublished - Jul 2010

Fingerprint

Daptomycin
Muscle Cells
Skeletal Muscle Fibers
Cell Culture Techniques
Skeletal Muscle
Cell Membrane
Lipopeptides
Myoblasts
Gram-Positive Bacteria
In Vitro Techniques
Anti-Bacterial Agents
Muscles

Keywords

  • Daptomycin
  • Membrane damage
  • Myotubes
  • Plasma membrane
  • Spontaneous contraction

ASJC Scopus subject areas

  • Developmental Biology
  • Cell Biology

Cite this

Effect of daptomycin on primary rat muscle cell cultures in vitro. / Kostrominova, Tatiana; Coleman, Scott; Oleson, Frederick B.; Faulkner, John A.; Larkin, Lisa M.

In: In Vitro Cellular and Developmental Biology - Animal, Vol. 46, No. 7, 07.2010, p. 613-618.

Research output: Contribution to journalArticle

Kostrominova, Tatiana ; Coleman, Scott ; Oleson, Frederick B. ; Faulkner, John A. ; Larkin, Lisa M. / Effect of daptomycin on primary rat muscle cell cultures in vitro. In: In Vitro Cellular and Developmental Biology - Animal. 2010 ; Vol. 46, No. 7. pp. 613-618.
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