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  • Title: Polymorphism in MHC class II transactivator gene is not associated with susceptibility to colorectal cancer in Swedish patients.
    Author: Mumtaz M, Löfgren S, Hugander A, Dimberg J.
    Journal: Anticancer Res; 2008; 28(3B):1789-91. PubMed ID: 18630461.
    Abstract:
    BACKGROUND: Reduced expression of major histocompatibility complex class II (MHC-II) genes in colorectal cancer (CRC) has been reported. MHC-II transactivator (CIITA), encoded by the MHC2TA gene, is considered to be the master regulator for MHC-II gene expression. A functional single nucleotide polymorphism (SNP) -168A-->G in the promoter region of the MHC2TA gene is suggested to have an influence on different autoimmune diseases. PATIENTS AND METHODS: Our study was performed to evaluate the association between the -168A-->G MHC2TA gene variant in patients with CRC versus a control group. Using the TaqMan system, this SNP was screened in 248 CRC patients and 256 controls. RESULTS: No significant difference in genotype distribution or in allelic frequencies was found between the two groups, nor any association with clinical characteristics. CONCLUSION: The results of this study suggest that -168A-->G polymorphism of the MHC2TA gene is not associated with susceptibility to CRC.
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