Control by fibroblast growth factor of differentiation in the BC3H1 muscle cell line

B. Lathrop, E. Olson, L. Glaser

Research output: Contribution to journalArticle

93 Citations (Scopus)

Abstract

The regulation of creatine phosphokinase (CPK) expression by polypeptide growth factors has been examined in the clonal mouse muscle BC3H1 cell line. After arrest of cell growth by exposure to low concentrations of serum, BC3H1 cells accumulate high levels of muscle-specific proteins including CPK. The induction of this enzyme is reversible in the presence of high concentrations of fetal calf serum, which cause quiescent, differentiated cells to reenter the cell cycle. Under these conditions, the rate of CPK synthesis is drastically reduced. We show in the present communication that either pituitary-derived fibroblast growth factor (FGF) or brain-derived FGF are as effective as serum in repressing the synthesis of CPK when added to quiescent, differentiated cells. The decrease in the rate of synthesis of CPK occurs within 22 h after the addition of pituitary FGF to the cells. Pituitary FGF had very little effect, if any, on the rate CPK degradation. The overall rate of protein synthesis and the pattern of synthesis of the major polypeptides made by these cells was not altered by the addition of FGF. Although pituitary FGF was mitogenic for BC3H1 cells, the rate of cell growth was not absolutely correlated with the extent of repression of CPK. Brain-derived FGF fully repressed CPK induction under conditions where it showed no significant mitogenic activity. These results show that the expression of a muscle-specific, CPK, can be controlled by a single defined polypeptide growth factor in fully differentiated cultures, and that initiation of cell division is not required for their regulation to take place.

Original languageEnglish (US)
Pages (from-to)1540-1547
Number of pages8
JournalJournal of Cell Biology
Volume100
Issue number5
StatePublished - 1985

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Fibroblast Growth Factors
Creatine Kinase
Muscle Cells
Cell Line
Peptides
Intercellular Signaling Peptides and Proteins
Serum
Enzyme Induction
Muscle Proteins
Growth
Cell Division
Cell Cycle
Muscles

ASJC Scopus subject areas

  • Cell Biology

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Control by fibroblast growth factor of differentiation in the BC3H1 muscle cell line. / Lathrop, B.; Olson, E.; Glaser, L.

In: Journal of Cell Biology, Vol. 100, No. 5, 1985, p. 1540-1547.

Research output: Contribution to journalArticle

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