Alpha-1-antitrypsin deficiency and smoking as risk factors for mismatch repair deficient colorectal cancer: A study from the colon cancer family registry

• Published in: Molecular genetics and metabolism Vol. 99; no. 2; pp. 157 - 159
• Main Authors: Lindor, Noralane M., Yang, Ping, Evans, Ilonka, Schowalter, Karen, De Andrade, Mariza, Li, Jia, Jeavons, Elysia, Peterson, Gloria, Gallinger, Steve, Bapat, Bharati, Hopper, John, Jass, Jeremy, Jenkins, Mark, Templeton, Allyson, Potter, John, Newcomb, Polly A., LeMarchand, Loic, Grove, John, Haile, Robert, Baron, John, Seminara, Daniela, Limburg, Paul, Thibodeau, Stephen N.
• Format: Journal Article
• Language: English
• Published: United States Elsevier Inc 01.02.2010
• Subjects: Adult; alpha 1-Antitrypsin Deficiency - complications; alpha 1-Antitrypsin Deficiency - pathology; Case-Control Studies; Colonic Neoplasms - complications; Colonic Neoplasms - genetics; Colonic Neoplasms - pathology; DNA Mismatch Repair; Family; Female; Humans; Immunohistochemistry; Male; Microsatellite instability; Middle Aged; Odds Ratio; Protease inhibitor; Registries; Risk Factors; Smoking; Smoking - adverse effects; Microsatellite instability; Protease inhibitor; DNA mismatch repair; Smoking
• ISSN: 1096-7192; 1096-7206
• DOI: 10.1016/j.ymgme.2009.09.010

In a previous study, alpha-1-antitrypsin (A1AT) deficiency alleles were found to be over represented among individuals with microsatellite unstable (MSI-high) colorectal cancers, and this was most significant in former or current smokers. We evaluated this association in a larger case–control study, stratified by microsatellite instability phenotypes. Concordant with prior observations, gender (female) and smoking history were positively associated with colorectal cancers having an MSI-high phenotype. No difference in frequency of A1AT deficiency alleles was found between cases and controls, irrespective of the MSI subtype.