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Gene-gene interaction analysis identifies a new genetic risk factor for colorectal cancer

 Jongkeun Park  ;  Injung Kim  ;  Keum Ji Jung  ;  Soriul Kim  ;  Sun Ha Jee  ;  Sungjoo Kim Yoon 
 JOURNAL OF BIOMEDICAL SCIENCE, Vol.22(73) : 1-8, 2015 
Journal Title
Issue Date
Adiponectin/genetics* ; Adult ; Cadherins/genetics* ; Colorectal Neoplasms/genetics* ; Epistasis, Genetic* ; Female ; Genotype ; Humans ; Male ; Middle Aged ; Neoplasm Proteins/genetics* ; Polymorphism, Single Nucleotide* ; Risk Factors
Gene-gene interaction ; CRC ; CDH13 ; rs3865188 ; APNSNPs
BACKGROUND: Adiponectin levels have been shown to be associated with colorectal cancer (CRC). Furthermore, a newly identified adiponectin receptor, T-cadherin, has been associated with plasma adiponectin levels. Therefore, we investigated the potential for a genetic association between T-cadherin and CRC risk. RESULT: We conducted a case-control study using the Korean Cancer Prevention study-II cohort, which is composed of 325 CRC patients and 977 normal individuals. Study results revealed that rs3865188 in the 5' flanking region of the T-cadherin gene (CDH13) was significantly associated with CRC (p = 0.0474). The odds ratio (OR) for the TT genotype as compared to the TA + AA genotype was 1.577 (p = 0.0144). In addition, the interaction between CDH13 and the adiponectin gene (APN) for CRC risk was investigated using a logistic regression analysis. Among six APN single nucleotide polymorphisms (rs182052, rs17366568, rs2241767, rs3821799, rs3774261, and rs6773957), an interaction with the rs3865188 was found for four (rs2241767, rs3821799, rs3774261, and rs6773957). The group with combined genotypes of TT for rs3865188 and GG for rs377426 displayed the highest risk for CRC development as compared to those with the other genotype combinations. The OR for the TT/GG genotype as compared to the AA/AA genotype was 4.108 (p = 0.004). Furthermore, the plasma adiponectin level showed a correlation with the gene-gene interaction, and the group with the highest risk for CRC had the lowest adiponectin level (median, 4.8 μg/mL for the TT/GG genotype vs.7.835 μg/mL for the AA/AA genotype, p = 0.0017). CONCLUSIONS: The present study identified a new genetic factor for CRC risk and an interaction between CDH13 and APN in CRC risk. These genetic factors may be useful for predicting CRC risk.
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4. Graduate School of Public Health (보건대학원) > Graduate School of Public Health (보건대학원) > 1. Journal Papers
Yonsei Authors
Jung, Keum Ji(정금지) ORCID logo https://orcid.org/0000-0003-4993-0666
Jee, Sun Ha(지선하) ORCID logo https://orcid.org/0000-0001-9519-3068
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