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Mukhtar M, Ashfield N, Vodickova L, Vymetalkova V, Levy M, Liska V, Bruha J, Bendova P, O’Sullivan J, Doherty G, Sheahan K, Nolan B, Vodicka P, Hughes DJ. The Associations of Selenoprotein Genetic Variants with the Risks of Colorectal Adenoma and Colorectal Cancer: Case–Control Studies in Irish and Czech Populations. Nutrients 2022; 14:nu14132718. [PMID: 35807897 PMCID: PMC9268344 DOI: 10.3390/nu14132718] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 06/27/2022] [Indexed: 02/05/2023] Open
Abstract
Background: Selenium manifests its biological effects through its incorporation into selenoproteins, which play several roles in countering oxidative and inflammatory responses implicated in colorectal carcinogenesis. Selenoprotein genetic variants may contribute to colorectal cancer (CRC) development, as we previously observed for SNP variants in a large European prospective study and a Czech case–control cohort. Methods: We tested if significantly associated selenoprotein gene SNPs from these studies were also associated with CRC risk in case–control studies from Ireland (colorectal neoplasia, i.e., cancer and adenoma cases: 450, controls: 461) and the Czech Republic (CRC cases: 718, controls: 646). Genotyping of 23 SNPs (20 in the Irish and 13 in the Czechs) was performed by competitive specific allele-specific PCR (KASPar). Multivariable adjusted logistic regression was used to assess the associations with CRC development. Results: We found significant associations with an increased CRC risk for rs5859 (SELENOF) and rs2972994 (SELENOP) in the Irish cohort but only with rs4802034 (SELENOV) in the Czechs. Significant associations were observed for rs5859 (SELENOF), rs4659382 (SELENON), rs2972994 (SELENOP), rs34713741 (SELENOS), and the related Se metabolism gene variant rs2275129 (SEPHS1) with advanced colorectal neoplasia development. However, none of these findings retained significance after multiple testing corrections. Conclusions: Several SNPs previously associated with CRC risk were also associated with CRC or colorectal neoplasia development in either the Irish or Czech cohorts. Selenoprotein gene variation may modify CRC risk across diverse European populations, although the specific variants may differ.
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Affiliation(s)
- Maryam Mukhtar
- Cancer Biology and Therapeutics Group, School of Biomolecular and Biomedical Science, UCD Conway Institute, University College Dublin, D04 V1W8 Dublin, Ireland; (M.M.); (N.A.)
| | - Niall Ashfield
- Cancer Biology and Therapeutics Group, School of Biomolecular and Biomedical Science, UCD Conway Institute, University College Dublin, D04 V1W8 Dublin, Ireland; (M.M.); (N.A.)
| | - Ludmila Vodickova
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University, 121 08 Prague, Czech Republic; (L.V.); (V.V.); (P.V.)
- Biomedical Centre, Faculty of Medicine in Pilsen, Charles University, 323 00 Pilsen, Czech Republic; (V.L.); (J.B.)
- Institute of Experimental Medicine ASCR, 142 20 Prague, Czech Republic;
| | - Veronika Vymetalkova
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University, 121 08 Prague, Czech Republic; (L.V.); (V.V.); (P.V.)
- Biomedical Centre, Faculty of Medicine in Pilsen, Charles University, 323 00 Pilsen, Czech Republic; (V.L.); (J.B.)
- Institute of Experimental Medicine ASCR, 142 20 Prague, Czech Republic;
| | - Miroslav Levy
- Department of Surgery, First Faculty of Medicine, Charles University and Thomayer Hospital, 121 08 Prague, Czech Republic;
| | - Václav Liska
- Biomedical Centre, Faculty of Medicine in Pilsen, Charles University, 323 00 Pilsen, Czech Republic; (V.L.); (J.B.)
| | - Jan Bruha
- Biomedical Centre, Faculty of Medicine in Pilsen, Charles University, 323 00 Pilsen, Czech Republic; (V.L.); (J.B.)
- Institute of Experimental Medicine ASCR, 142 20 Prague, Czech Republic;
| | - Petra Bendova
- Institute of Experimental Medicine ASCR, 142 20 Prague, Czech Republic;
| | - Jacintha O’Sullivan
- Trinity Translational Medicine Institute, Department of Surgery, Trinity College Dublin and St. James’s Hospital, D08 NHY1 Dublin, Ireland;
| | - Glen Doherty
- Centre for Colorectal Disease, St. Vincent’s University Hospital, D04 T6F4 Dublin, Ireland; (G.D.); (K.S.); (B.N.)
| | - Kieran Sheahan
- Centre for Colorectal Disease, St. Vincent’s University Hospital, D04 T6F4 Dublin, Ireland; (G.D.); (K.S.); (B.N.)
| | - Blathnaid Nolan
- Centre for Colorectal Disease, St. Vincent’s University Hospital, D04 T6F4 Dublin, Ireland; (G.D.); (K.S.); (B.N.)
| | - Pavel Vodicka
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University, 121 08 Prague, Czech Republic; (L.V.); (V.V.); (P.V.)
- Biomedical Centre, Faculty of Medicine in Pilsen, Charles University, 323 00 Pilsen, Czech Republic; (V.L.); (J.B.)
- Institute of Experimental Medicine ASCR, 142 20 Prague, Czech Republic;
| | - David J. Hughes
- Cancer Biology and Therapeutics Group, School of Biomolecular and Biomedical Science, UCD Conway Institute, University College Dublin, D04 V1W8 Dublin, Ireland; (M.M.); (N.A.)
- Correspondence: ; Tel.: +353-1-716-6988
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