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J Neurol Sci. 1991 Feb;101(2):193-7.

Stimulation of myoblast proliferation in culture by leukaemia inhibitory factor and other cytokines.

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  • 1Murdoch Institute, Parkville, Melbourne Australia.


Significant stimulation of growth of myoblasts in culture is achieved by leukemia inhibitory factor (LIF). The optimum activity of this cytokine occurs at about 6 pM LIF. Interleukin-6 (IL-6) also stimulates cultured myoblasts but to a lesser degree than LIF and the effect is not maintained for extended culture periods. In addition, transforming growth factor-alpha (TGF-alpha) also increases the growth rate of myoblasts but only after a considerable lag phase. All 3 cytokines may be of value in the large scale production of myoblasts for use in the potential treatment of primary myopathies by injection of cultured myoblasts into diseased muscle to form genetically complete muscle fibres after fusion of the myoblasts in situ. Their potential use is enhanced in that at least under the conditions used here they do not stimulate fibroblast proliferation.

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