The Tohoku Journal of Experimental Medicine
Online ISSN : 1349-3329
Print ISSN : 0040-8727
ISSN-L : 0040-8727
Effect of Insulin on the Growth of a Human Hepatoma Cell Line PLC/PRF/5: A Possible Role of Insulin Receptor
YOSHIHARU MOTOOKENICHI KOBAYASHINOBU HATTORI
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1988 Volume 156 Issue 4 Pages 351-357

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Abstract
Insulin produced increases in cell number, DNA synthesis and alpha-fetoprotein secretion of a human hepatoma cell line PLC/PRF/5. The insulin-treated cells showed a decrease in binding of 125I-insulin. The decreased binding was due to the decreased numbers as well as the low affinity constant of insulin receptor. These data suggest that insulin is a growth factor for the human hepatoma cells and that insulin receptor plays a role in the growth-promoting effect of insulin.
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© Tohoku University Medical Press
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