Mitogenic effect of a human placental factor on astrocytes and glial precursors
1987
Abstract We have characterized and partially purified a new ‘factor’ present in human placenta which strongly stimulates the in vitro proliferation of two immunocytochemically characterized subtypes of astrocytes and of bipotential precursors of putative fibrous astrocytes and oligodendrocytes. This ‘factor’ has an apparent M r of 60–80 kD and exhibits physicochemical and chromatographic properties characteristic of polypeptides. Our observations suggest that placenta-derived growth factors (PDMF) control the proliferation of glial cells and glial precursors during fetal development.
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