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- W1968421638 abstract "When vascular smooth muscle cells are dispersed into culture in the presence of serum they modulate their phenotype. The aim of this study was to determine the range of growth factors likely to stimulate replication of medial vascular smooth muscle cells in vivo by examining their responses when cultured in the absence of serum.Freshly dispersed vascular smooth muscle cells from the healthy aortic media of adult rats were prepared and plated out in cell culture in the absence of fetal calf serum. DNA synthesis by these cells when plated onto fibronectin in response to various growth factors and vasoconstrictors was analysed by [3H]-thymidine incorporation.Less than 5% of cells plated on culture plastic spread, but 15-25% of cells plated onto fibronectin spread and survived for at least 8 d in culture. These cells responded to platelet derived growth factor BB homodimer (PDGF-BB), basic fibroblast growth factor, and epidermal growth factor by stimulating DNA synthesis at least 10-fold compared with cells in the absence of growth factors. Maximum rate of DNA synthesis occurred 36-42 h after addition of 10% fetal calf serum, whereas maximum rate of DNA synthesis occurred 80-88 h after stimulation with PDGF-BB or basic fibroblast growth factor. By contrast, PDGF-AA homodimer, transforming growth factor type beta, insulin-like growth factor I, angiotensin II, and endothelin I did not stimulate DNA synthesis by more than threefold.Freshly dispersed vascular smooth muscle cells plated onto fibronectin in the absence of serum proliferate in response to PDGF-BB, basic fibroblast growth factor, and epidermal growth factor by stimulating DNA synthesis. The range of mitogens and the time course of entry into DNA synthesis under these culture conditions suggest that serum-free culture provides a good model for the responses of medial vascular smooth muscle cells in vivo." @default.
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- W1968421638 date "1994-08-01" @default.
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- W1968421638 title "Mitogens for adult rat aortic vascular smooth muscle cells in serum-free primary culture" @default.
- W1968421638 doi "https://doi.org/10.1093/cvr/28.8.1238" @default.
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