Growth factors promote inositol uptake in BC3H1 cells

Gwendolyn Spizz, Linda J. Pike

Research output: Contribution to journalArticle

4 Scopus citations


BC3H1 cells induced to differentiate by serum withdrawal were found to incorporate substantially less [3H]inositol into their phosphoinositides than cells induced to differentiate by growth in the presence of high serum. This decrease was found to be due to a decline in the rate of [3H]inositol uptake by the serum-starved cells. Addition of purified growth factors such as TGF-β, EGF and FGF to these cells promoted inositol uptake and lead to an increase in the incorporation of [3H]inositol into phosphoinositides. Stimulation of inositol uptake by TGF-β required at least a 24 hr exposure to the growth factor. These data indicate that growth factors regulate phosphoinositide metabolism at many different levels including at the level of inositol uptake.

Original languageEnglish
Pages (from-to)1008-1015
Number of pages8
JournalBiochemical and Biophysical Research Communications
Issue number3
StatePublished - Feb 14 1992

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