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Expression Analysis of Aurora-C and Survivin, Two Testis-Specific Genes, in Patients with Colorectal Cancer.

BACKGROUND
Colorectal cancer (CRC) is one of the leading causes of cancer-related death worldwide. The high frequency of positive families shows the importance of public awareness and screening strategies in those families. Cancer/testis (CT) antigens such as Aurora-C and Survivin are a group of antigens expressed in various tumor types of human cancers. Therefore, the aim of this study was to investigate the expression of Aurora-C and Survivin genes in malignant and normal tissues and their correlation to clinicopathological characteristics.


METHODS
Tumor samples were obtained from 33 patients and adjacent non-tumorous tissues from 7 patients were also used as control. Patients were diagnosed with various stages of colorectal cancer. The level of Aurora-C and Survivin genes were evaluated by using real-time quantitative Polymerase Chain Reaction.


RESULTS
The expression pattern of Survivin and Aurora-C revealed significant changes in tumor tissues when compared with normal tissues (p < 0.05). Also, these expressions were associated with the grade of disease and tumor size. There was no significant relationship between the expression of Survivin and Aurora-C genes (p > 0.05).


CONCLUSIONS
In conclusion, the overexpression of Aurora-C and Survivin genes may play an important role in the development of colorectal cancer and may play a potential role in cancer therapy.