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  • Title: In vitro proliferation and differentiation of myogenic cells from adult Xenopus.
    Author: Franquinet R, Aamiri A, Gautron J, Le Moigne A.
    Journal: Biol Struct Morphog; 1988; 1(2):84-8. PubMed ID: 3408748.
    Abstract:
    A technique is described for isolating amphibian myogenic cells from the muscle of adult Xenopus laevis (Dauchin). Muscles were dissociated with 0.2% collagenase and 0.1% trypsin. The resulting cell suspensions were separated from the remaining myofibres by filtration through nylon grids. Most of the cells remaining in the filtrate suspension were satellite cells or fibroblasts. When plated in Petri dishes, satellite cells adhered to the substrate, became spindle-shaped and proliferated activity in a culture medium supplemented with fetal calf serum. Mitotic waves lasted 4 days and consequently cell density markedly increased. Satellite cells came into contact and began to fuse into myotubes on day 8 of culture. Horse serum, which replaced fetal calf serum in the medium on day 12, accelerated cell fusions which were almost complete on day 18. However, under these conditions, some mononucleated cells continued to undergo mitosis. Cell proliferation with a high rate of mitosis was prolonged by repeated trypsinization and replating in medium supplemented with fetal calf serum. When myofibres from dissociated muscles were cultured under the same conditions, they never fragmented or divided.
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