Biological activity of a growth factor for ovarian cells
- PMID: 4372617
- PMCID: PMC433774
- DOI: 10.1073/pnas.71.9.3372
Biological activity of a growth factor for ovarian cells
Abstract
The biological activity of a protein growth factor is described. This factor was isolated from bovine pituitary tissue, and its activity was tested on cells of rat ovarian origin. Activity was assayed as growth-promoting potential measured by cell counts and is concentrationdependent. Similar growth stimulation was not produced by several cyclic nucleotides tested, neither was there crossreactivity between this growth factor and a chemically similar one produced by rat liver cells.
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