Abstract:
:An in vitro model was used to study the cytokinetics of astroglial cells derived from neonatal rat cerebellum. Confluent monolayers of astrocytes (85% astroglial as assessed by GFAP immunoreactivity) were subcultured at low cell density and after 2-3 days growth were rendered quiescent by shifting them to low serum medium (0.25%) for several days. Cells could be stimulated to re-enter the proliferative compartment by challenging them with high concentrations of fetal bovine serum (5-10% FBS) or fibroblast growth factor (FGF). FGF added alone at a concentration of 25 ng/ml caused quiescent astrocytes to re-enter the cell cycle nearly as effectively as 5-10% serum. Moreover, when FGF (25 ng/ml) was combined with 0.5% serum there was a potentiation of the mitogenic effect seen with FGF alone. This synchronization scheme is an important tool for continuing studies of the growth factor and hormonal requirements for astroglial cell proliferation and differentiation.
journal_name
Brain Resjournal_title
Brain researchauthors
Kniss DA,Burry RWdoi
10.1016/0006-8993(88)91485-0subject
Has Abstractpub_date
1988-01-26 00:00:00pages
281-8issue
1-2eissn
0006-8993issn
1872-6240pii
0006-8993(88)91485-0journal_volume
439pub_type
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