Abstract
Survivin (also known as birc5) is the first protein discovered among the apoptosis-regulating gene family referred to as inhibitor of apoptosis proteins (IAPs). It is expressed and controlled during cellular differentiation and development in human beings. Survivin expression has been shown in a number of cancers and has been associated with cancer development. In our study, we compared with blood samples as our control and normal- tumoural tissue samples, which obtained from the same tissue of 100 cases diagnosed with colorectal cancer, at Department of Pathology, Istanbul University. The present study employed PCR-RFLP to identify the -31 G/C polymorphism in the promoter region of the survivin gene. Distribution of the survivin polymorphism was compared between control and tumoural tissue samples using the chi-square test. Comparison of all samples revealed that there was significant difference in distribution of survivin promoter -31G/C between control group and tumour and normal tissue of the patient group (p<0.05). When genotypes of the control and tumour tissues were compared according to gender, there was no statistically significant difference in the distribution of survivin promoter -31G/C in females p=0.420 or males p=0.309. A significant difference was seen in distribution of C allele in tumour tissue compared to normal tissue.
Highlights
Survivin is the first protein discovered among the apoptosis-regulating gene family referred to as inhibitor of apoptosis proteins (IAPs)
A significant difference was seen in distribution of C allele in tumour tissue compared to normal tissue
Survivin is known as an inhibitor of apoptosis protein which is crucial for the control of cell division as well as cell survival [1]
Summary
Comparison of all samples revealed that there was significant difference in distribution of survivin promoter -31G/C between tumour and normal tissue of the patient group (p
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