The effect of anti-angiogenesis peptides on expression of Caspase-3 and Caspase-9 genes in Balb / c mouse model of breast cancer induced by 4T1 cell line

Breast cancer is the most important cancer in the world today, and accounts for 25% of all cases of cancer. In all cancers, including breast cancer, the stages of growth, invasion and metastasis are dependent on several intracellular agents, one of which is the angiogenesis process. The aim of this study was to evaluate the effect of anti-angiogenesis peptides designed to express the Caspase-3 gene and Caspase-9 in Balb / c mice. In this method, the tissue samples of Balb / c mice were previously used, which were previously infected with 4T1 cell-derived mammary tumors (after anesthesia by intraperitoneal injection (IP) for 3 to 5 weeks, their left side adjacent graft was struck). Extraction of TOTAL RNA from tumor samples treated with anti-angiogenesis peptides was performed at concentrations of 1 μg and 10 μg. Synthesis of cDNA was performed to stabilize the RNA molecule. Primers for Real time PCR were designed and synthesized for both Caspase-3 and 9 genes. The primer binding specificity has been confirmed to the pattern string. Statistical analysis was performed using SPSS software. The results of this study showed that there was a significant difference between the treatments of each group of anti-angiogenesis peptides (VEGB1, VEGB2, VEGB3) at concentrations of 1 μg/kg and 10 μg/kg in expression of caspase-3 gene expression (p<0.05). All three anti-angiogenesis peptides can inhibit the VEGFR signaling pathway by regulating caspase-3 and caspase-9 levels, leading to an increase in apoptosis in the tumor.