PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 15158089-0 2004 Effects of SU5416, a small molecule tyrosine kinase receptor inhibitor, on FLT3 expression and phosphorylation in patients with refractory acute myeloid leukemia. Semaxinib 11-17 fms related receptor tyrosine kinase 3 Homo sapiens 75-79 15158089-2 2004 SU5416 is a small molecule inhibitor of VEGF receptors, c-kit and FLT3 and therefore provides a novel opportunity to target both angiogenesis and proliferation in AML. Semaxinib 0-6 fms related receptor tyrosine kinase 3 Homo sapiens 66-70 15158089-4 2004 Since AML provides a unique platform to evaluate mechanism of action of small molecule inhibitors, investigation of the effect of SU5416 on FLT3 expression and phosphorylation in blood and bone marrow was an additional focus of this trial. Semaxinib 130-136 fms related receptor tyrosine kinase 3 Homo sapiens 140-144 15158089-5 2004 Phosphorylated FLT3 was detected by immunoprecipitation/Western analysis in peripheral blood samples from 17 of 22 patients, and seven exhibited strong inhibition of phosphorylation immediately following a 1h SU5416 infusion, demonstrating that SU5416 can modulate RTK phosphorylation in humans. Semaxinib 209-215 fms related receptor tyrosine kinase 3 Homo sapiens 15-19 15158089-5 2004 Phosphorylated FLT3 was detected by immunoprecipitation/Western analysis in peripheral blood samples from 17 of 22 patients, and seven exhibited strong inhibition of phosphorylation immediately following a 1h SU5416 infusion, demonstrating that SU5416 can modulate RTK phosphorylation in humans. Semaxinib 245-251 fms related receptor tyrosine kinase 3 Homo sapiens 15-19 15158089-6 2004 Although no clear correlation with clinical response was observed, analysis of patient plasma drug levels suggested that a threshold SU5416 concentration of 15 microM was associated with FLT3 inhibition. Semaxinib 133-139 fms related receptor tyrosine kinase 3 Homo sapiens 187-191