Uptake of tritiated serotonin into human platelets was found to be rapidly inhibited by the tyrosine kinase inhibitors, genistein and methyl 2,5-dihydroxycinnamate. Binding studies indicated that uptake inhibition did not correlate with direct binding of these inhibitors to the transporter. Chelation of mobilizable intracellular Ca2+ did not inhibit the effects of genistein on uptake. These results suggest a more direct, non-Ca2+ mediated effect of tyrosine kinase inhibitors on uptake.
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Aristotle Univ Thessaloniki, G Papanikolaou Gen Hosp, Pulm Oncol Unit, GR-54006 Thessaloniki, GreeceUniv Erlangen Nurnberg, Fuerth Hosp, Med Clin 1, Furth, Germany
Pitsiou, Georgia
Zarogoulidis, Konstantinos
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Aristotle Univ Thessaloniki, G Papanikolaou Gen Hosp, Pulm Oncol Unit, GR-54006 Thessaloniki, GreeceUniv Erlangen Nurnberg, Fuerth Hosp, Med Clin 1, Furth, Germany
Zarogoulidis, Konstantinos
Man, Yan-Gao
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Bon Secours Canc Inst, Res Lab, Richmond, VA USA
Bon Secours Canc Inst, Int Collaborat, Richmond, VA USAUniv Erlangen Nurnberg, Fuerth Hosp, Med Clin 1, Furth, Germany
Man, Yan-Gao
Rittger, Harald
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Univ Erlangen Nurnberg, Fuerth Hosp, Med Clin 1, Furth, GermanyUniv Erlangen Nurnberg, Fuerth Hosp, Med Clin 1, Furth, Germany