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Sökning: L773:0969 6970 > (2000-2004)

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  • Bäckman, Ulrika, et al. (författare)
  • Importance of Vascular Endothelial Growth Factor A in the Progression of Experimental Neuroblastoma
  • 2002
  • Ingår i: Angiogenesis. - 0969-6970 .- 1573-7209. ; 5:4, s. 267-274
  • Tidskriftsartikel (refereegranskat)abstract
    • Vascular endothelial growth factor A (VEGF-A) and its receptor tyrosine kinases located on endothelial cells seem to play an important role in the multistep pathway of angiogenesis. SU5416 is a small molecule which inhibits angiogenesis by acting as an inhibitor of VEGF receptor-2 tyrosine kinase. We have developed a reproducible murine model for neuroblastoma, a childhood cancer, based on s.c. xenotransplantation of SH-SY5Y neuroblastoma cells. We found that SH-SY5Y cells expressed VEGF-A on both the mRNA and protein levels, that plasma concentrations of VEGF-A were significantly elevated in animals with neuroblastoma with a volume > 1.4 ml, and that there was a correlation between VEGF-A levels in plasma and tumor size in untreated tumor-bearing animals. Treatment with SU5416 reduced the growth of neuroblastoma tumors by 65% without apparent toxicity. SU5416 treatment also suppressed tumor angiogenesis, despite an increase in plasma VEGF-A levels per ml tumor volume during therapy. Our experimental data suggest that the angiogenesis inhibitor SU5416 may be beneficial in the treatment of solid tumors of childhood such as neuroblastoma.
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