Association of CCND1 Gene Polymorphism rs9344 with Grade and Invasion Degree of Colorectal Cancer at Prof. Dr. I.G.N.G. Ngoerah Central General Hospital

The majority of colorectal cancer (CRC) are sporadic CRC that can be caused by genetic variations such as Single Nucleotide Polymorphisms (SNPs). The CCND1 gene polymorphism rs9344 could involve at the beginning and the development of CRC. This study aimed to analyze the association between CCND1 gene polymorphism rs9344 with the grade and invasion degree of colorectal cancer in at Prof. Dr. I.G.N.G. Ngoerah Central General Hospital, Denpasar, Bali. This cross-sectional study was carried out at the Integrated Biomedical Laboratory Unit, Faculty of Medicine, Udayana University. Data analysis of 32 samples showed majority age was above 50 years old as many as 28 (87.5%), with men as 21 samples (65.6%). Histopathology description was adenocarcinoma in 32 samples (100%). Grading histopathology low grade was 31 samples (96.6%). The degree of tumor invasion was high as 25 samples (78.1%). From the aspect of pathological stage pNx as much as 27 (84.4%). The majority location of tumors was on the left side as 21 samples (65.6%). The polymorphisms of CCND1 rs9344 genotype sequentially AA as 20 samples (62.5%), AG as 9 samples (28.1%), while GG as 3 samples (9.4%). The statistical analysis found that CCND1 gene polymorphism rs9344 was not associated with colorectal cancer grade (p>0.05), and not associated with invasion degrees of colorectal cancer (p>0.05). Taken together, we conclude that no significant association between the CCND1 gene polymorphism rs9344 with grade and invasion degree of colorectal cancer at Prof. Dr. I.G.N.G. Ngoerah Central General Hospital, Denpasar, Bali.