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c-Src Antisense Complexed with PAMAM Denderimes Decreases of c-Src Expression and EGFR-Dependent Downstream Genes in the Human HT-29 Colon Cancer Cell Line

  • Nourazarian, Ali Reza (Department of Biochemistry, Faculty of Medicine, Research Center, Kerman University of Medical Sciences) ;
  • Pashaei-Asl, Roghiyeh (Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences) ;
  • Omidi, Yadollah (Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences) ;
  • Najar, Ahmad Gholamhoseinian (Biochemistry Department & Kerman Physiology, Research Center, Kerman University of Medical Sciences)
  • Published : 2012.05.30

Abstract

c-Src is one member of non-receptor tyrosine kinase protein family that has over expression and activation in many human cancer cells. It has been shown that c-Src is implicated in various downstream signaling pathways associated with EGFR-dependent signaling such as MAPK and STAT5 pathways. Transactivation of EGFR by c-Src is more effective than EGFR ligands. To inhibit the c-Src expression, we used c-Src antisense oligonucleotide complexed with PAMAM Denderimes. The effect of c-Src antisense oligonucleotide on HT29 cell proliferation was determined by MTT assay. Then, the expression of c-Src, EGFR and the genes related to EGFR-depended signaling with P53 was applied by real time PCR. We used western blot analysis to elucidate the effect of antisense on the level of c-Src protein expression. The results showed, c-Src antisense complexed with PAMAM denderimers has an effective role in decrease of c-Src expression and EGFR-dependent downstream genes.

Keywords

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