Abstract
Cancer is a disease arising from DNA alterations that dysregulate gene structure and function. These deregulated genes can also play a role in tumor invasion and metastasis or resistance to treatment. In this study, we determined the gene expression during transcription of PTGS2 (Prostaglandin-endoperoxide synthase 2), MAGE-A3 (Melanoma-associated antigen 3), CALR (Calreticulin), KRT19 (Cytokeratin 19), and TMPRSS4 (Transmembrane protease, serine 4) in HCT116 colon cancer cell line and PC3 prostate cancer cell line. After RNA isolation and cDNA conversion, DNA amplification was performed with Real-Time PCR. We determined the altered transcriptional expression level of those genes. In HCT116 colon cancer cell line, expression of the TMPRSS4 gene, MAGEA3 gene and KRT19 gene was found as increased and expression of the CALR gene and the PTGS2 gene was found as decreased. Especially a 93.70-fold increase in expression of the KRT19 gene was found in HCT116 colon cancer cell line. In PC3 prostate cancer cell lines, TMPRS4 gene expression and MAGEA3 gene expression were found as increased. But there was 50 fold decrease in PTGS2 gene expression.
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