Abstract
A secreted MUC6 mucin is reported to be expressed highly in the stomach and gall bladder. In previous our study, the five minisatellites were identified and a significant association between MUC6-MS5 alleles and gastric cancer was reported. Because of aberrant MUC6 expression is often found in gastrointestinal diseases, we evaluated a relationship between MUC6-MS5 and susceptibility to colorectal cancers. Case–control study was performed with 1,103 cancer-free controls and 414 rectal cancer cases. A significant association (OR = 2.70) between short rare MUC6-MS5 alleles (7, 9 repeats) and the occurrence of cancer was observed in rectal cancer [95 % confidence interval (CI), 1.12–6.54; p = 0.022]. Furthermore, a comparison by gender showed the differences in the association ratios between rectal cancer and short rare MUC6-MS5 alleles: male, 3.97 (CI: 1.36–11.5; p = 0.006) versus female 0.91 (CI: 0.18–4.75; p = 0.913). We also examined the association according to lymphovascular invasion (LVI). The frequency of LVI positive rectal cancer was increased in short rare allele cases than in the total rectal cases: 16.2 % versus 42.9 %. Therefore, we suggest that the short rare MUC6-MS5 alleles may be related to cancer development in male and these cancer cases may be related the bad prognosis.
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This research was supported by 2011 Collaborative research Program of Nuclear Medical Sciences through the Dongnam Institute of Radiological & Medical Sciences (DIRAMS) funded by the Ministry of Education, Science and Technology (MEST) and Busan Metropolitan city (2011-0593) and by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (2012-0000481).
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Ahn, MH., Bae, K.B., Kwon, JA. et al. Association of MUC6-minisatellite variants with susceptibility to rectal carcinoma. Mol Biol Rep 40, 303–308 (2013). https://doi.org/10.1007/s11033-012-2062-5
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DOI: https://doi.org/10.1007/s11033-012-2062-5