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. 1988 Aug 1;253(3):745–749. doi: 10.1042/bj2530745

Prostaglandin production in myotube cultures. Influence on protein turnover.

M A McElligott 1, L Y Chaung 1, V Baracos 1, E A Gulve 1
PMCID: PMC1149366  PMID: 3140786

Abstract

The production of prostaglandins (PG) E2 and F2 alpha and their possible role in regulation of protein turnover in cultured skeletal-muscle cells were examined. Primary chick myoblasts and myotubes, and L8 myotubes, produced PGE2 and PGF2 alpha from endogenous arachidonic acid. PG production by all three cell types was increased manyfold by the addition of exogenous arachidonic acid. Arachidonate-stimulated PG production was inhibited by the addition of indomethacin (0.1 mM). When L8 and chick myotubes were treated with PGE2, PGF2 alpha, arachidonic acid (0.01 mM) or indomethacin (0.1 mM), no significant alterations in rates of protein synthesis or degradation were observed. Rates of protein synthesis and degradation in these cells were responsive to the addition of 10% fetal-bovine serum under identical experimental conditions. Thus, in contrast with incubated adult skeletal muscle, it appears that the production of prostaglandin metabolites from arachidonic acid is unrelated to regulation of protein turnover in cultured muscle cells.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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