A673 |
A9.12 |
makes caterpillars floppy |
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Several activities inhibiting the growth of epithelial and hematopoietic cells (see also: hematopoiesis) have been identified in the conditioned medium of the human peripheral neuroepithelioma cell line A673.
One inhibitory activity has been shown to be identical with IL1-alpha (see: IL1). More than 90 % of the other bioactivity consists of TGF-beta-1 (see: TGF-beta). Although the growth of A673 cells is inhibited by exogenous TGF-beta-1, TGF-beta-1 in the conditioned medium of A673 cells is present in the latent biologically inactive form.
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