Adenylyl cyclase type 9 gene polymorphisms are associated with asthma and allergy in Brazilian children |
| |
| Affiliation: | 1. Instituto de Ciências da Saúde, Universidade Federal da Bahia, Bahia, Brazil;2. Instituto de Saúde Coletiva, Universidade Federal da Bahia, Bahia, Brazil;3. Departments of Neurobiology;4. Biochemistry and Molecular Biology, The University of Chicago, Chicago, Illinois 60637;5. Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, New York 10029;6. Department of Neurosciences, University of California, San Diego School of Medicine, La Jolla, California 92093;1. Department of Medical Biochemistry, Jessenius Faculty of Medicine, Comenius University de Bratislava, Martin, Slovak Republic;2. Department of Pediatrics, Jessenius Faculty of Medicine, Comenius University de Bratislava, Martin, Slovak Republic;1. Key Laboratory of Freshwater Aquatic Genetic Resources Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, China;2. Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, China;3. National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China;1. Division of Pediatric Allergy and Immunology, Johns Hopkins University School of Medicine, Baltimore, Md;3. Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Md;5. Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, Md;2. Division of Biomedical Informatics and Personalized Medicine, University of Colorado, Denver, Colo;4. A.B. PRISMA, Lima, Peru;6. Department of Internal Medicine, Center for Precision Medicine, Wake Forest School of Medicine, Winston-Salem, NC;7. Instituto de Ciências da Saúde, Universidade Federal da Bahia (UFBA), Salvador, Brazil;8. Department of Biochemistry, Wake Forest School of Medicine, Winston-Salem, NC;9. Department of Medicine, University of Arizona, Tucson, Ariz;10. Fundação ProAR, Salvador, Brazil;11. Centro de Integração de Dados e Conhecimento para Saúde, Fiocruz, Salvador, Brazil;12. Department of International Health, Program in Global Disease Epidemiology and Control, Johns Hopkins Bloomberg School of Public Health, Baltimore, Md |
| |
| Abstract: | Asthma is a chronic inflammatory disease of the respiratory tract. This heterogeneous disease is caused by the interaction of interindividual genetic variability and environmental factors. The gene adenylyl cyclase type 9 (ADCY9) encodes a protein called adenylyl cyclase (AC), responsible for producing the second messenger cyclic AMP (cAMP). cAMP is produced by T regulatory cells and is involved in the down-regulation of T effector cells. Failures in cAMP production may be related to an imbalance in the regulatory immune response, leading to immune-mediated diseases, such as allergic disorders. The aim of this study was to investigate how polymorphisms in the ADCY9 are associated with asthma and allergic markers. The study comprised 1309 subjects from the SCAALA (Social Changes Asthma and Allergy in Latin America) program. Genotyping was accomplished using the Illumina 2.5 Human Omni bead chip. Logistic regression was used to assess the association between allergy markers and ADCY9 variation in PLINK 1.07 software with adjustments for sex, age, helminth infection and ancestry markers. The ADCY9 candidate gene was associated with different phenotypes, such as asthma, specific IgE, skin prick test, and cytokine production. Among 133 markers analyzed, 29 SNPs where associated with asthma and allergic markers in silico analysis revealed the functional impact of the 6 SNPs on ADCY9 expression. It can be concluded that polymorphisms in the ADCY9 gene are significantly associated with asthma and/or allergy markers. We believe that such polymorphisms may lead to increased expression of adenylyl cyclase with a consequent increase in immunoregulatory activity. Therefore, these SNPs may offer an impact on the occurrence of these conditions in admixture population from countries such as Brazil. |
| |
| Keywords: | Allergy Polymorphism cAMP T regulatory cells Asthma |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
