PMID: 3759795Sep 1, 1986Paper

Increased viability and differentiation of normal and dystrophic striated muscle in vitro

In Vitro Cellular & Developmental Biology : Journal of the Tissue Culture Association
R J Walter, J Hyun

Abstract

Primary cultures of muscle from normal (line 412) and dystrophic (line 413) chick embryos were exposed to corticosterone-21-acetate (C-21-A) or sodium ibuprofen (Motrin) for 28 d after myotube formation. Ibuprofen (0.5 to 500 micrograms/ml) or C-21-A (0.4 to 40 micrograms/ml)-treated cultures were fixed and assessed semiquantitatively using phase microscopy. On this basis, ibuprofen (50 micrograms/ml) and C-21-A (40 micrograms/ml) seemed to be effective in maintaining both normal and dystrophic muscle cultures. Using ibuprofen and C-21-A at these concentrations, experiments were repeated and analyzed quantitatively. Ibuprofen maintained culture viability (up to 68% more myotubes than untreated controls) but had no significant effect on the number of striated cells. C-21-A effectively maintained culture viability (up to 73% increase) and strongly promoted the formation of striated cells in these cultures (up to a sixfold increase). Both normal and dystrophic cultures were affected similarly by these agents, but the dystrophic cultures showed more consistent if not more extensive improvements in the parameters examined here. Thus, it seems that ibuprofen and C-21-A may affect both normal and dystrophic muscle directly to maintain...Continue Reading

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