| Literature DB >> 2331786 |
J C Martinou1, A Le Van Thai, A Valette, M J Weber.
Abstract
We have studied the effects of transforming growth factor beta 1 (TGF beta 1) on the survival of embryonic motoneurons in culture. For this purpose, E14 rat embryo motoneurons were purified to more than 90% homogeneity by cell sorting and cultured at low density on monolayers of cortex astrocytes. Subnanomolar concentrations of TGF beta 1 (40-500 pM) increased the survival of motoneurons 2-fold after 9-11 days in culture. The increase in choline acetyltransferase (ChAT) activity per culture caused by TGF beta 1 was attributable to its effects on survival. Comparable results were found with motoneurons cultured on lysed astrocytes, suggesting that the effects of the factor are not mediated by non-neuronal cells, but that motoneurons are a target for TGF beta 1.Entities:
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Year: 1990 PMID: 2331786 DOI: 10.1016/0165-3806(90)90233-o
Source DB: PubMed Journal: Brain Res Dev Brain Res ISSN: 0165-3806