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HLA-C*17, DQB1*03:01, DQA1*01:03 and DQA1*05:05 Alleles Associated to Bullous Pemphigoid in Brazilian Population
BACKGROUND: Bullous pemphigoid (BP) is an autoimmune disease with bullous vesicles and an incidence of 0.2 to 1.4 per 100,000 inhabitants. Many studies have been published demonstrating the association of pemphigoid with HLA class II system alleles in different populations, however there are no data...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Korean Dermatological Association; The Korean Society for Investigative Dermatology
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5762482/ https://www.ncbi.nlm.nih.gov/pubmed/29386826 http://dx.doi.org/10.5021/ad.2018.30.1.8 |
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author | Chagury, Azis Arruda Sennes, Luiz Ubirajara Gil, Julio Miranda Kalil, Jorge Rodrigues, Helcio Rosales, Claudia B. Miziara, Ivan Dieb |
author_facet | Chagury, Azis Arruda Sennes, Luiz Ubirajara Gil, Julio Miranda Kalil, Jorge Rodrigues, Helcio Rosales, Claudia B. Miziara, Ivan Dieb |
author_sort | Chagury, Azis Arruda |
collection | PubMed |
description | BACKGROUND: Bullous pemphigoid (BP) is an autoimmune disease with bullous vesicles and an incidence of 0.2 to 1.4 per 100,000 inhabitants. Many studies have been published demonstrating the association of pemphigoid with HLA class II system alleles in different populations, however there are no data on the BP, one of the most heterogeneous in the world. OBJECTIVE: To typify HLA alleles in Brazilians with Bullous pemphigoid. METHODS: The study group included 17 Brazilian patients with a confirmed diagnosis of BP from a hospital in Sao Paulo city, southeast Brazil. DNA was extracted from peripheral blood using Qiagen kits and HLA A, B, C, DR and DQ typing was performed using polymerase chain reaction. The control group was composed of a database of 297 deceased donors from the city of Sao Paulo. The statistical significance level was adjusted using the Bonferroni correction depending on the phenotypic frequencies evaluated for HLA class I (A, B and C) and class II (DRB1, DQB1 and DQA1). RESULTS: Our findings show that alleles HLA C*17, DQB1*03:01, DQA1*01:03 and DQA1*05:05 are associated with the onset of the disease in the Brazilian population, with relative risks of 8.31 (2.46 to 28.16), 3.76 (1.81 to 7.79), 3.57 (1.53 to 8.33), and 4.02 (1.87 to 8.64), respectively (p<0.005). CONCLUSION: Our data indicate that Brazilian patients with BP present the same genetic predisposition linked to HLA-DQB1*03:01 previously reported in Caucasian and Iranian individuals and our study introduces three new alleles (C*17, DQA1*01:03 and DQA1*05:05) involved in the pathophysiology of BP. |
format | Online Article Text |
id | pubmed-5762482 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | The Korean Dermatological Association; The Korean Society for Investigative Dermatology |
record_format | MEDLINE/PubMed |
spelling | pubmed-57624822018-02-01 HLA-C*17, DQB1*03:01, DQA1*01:03 and DQA1*05:05 Alleles Associated to Bullous Pemphigoid in Brazilian Population Chagury, Azis Arruda Sennes, Luiz Ubirajara Gil, Julio Miranda Kalil, Jorge Rodrigues, Helcio Rosales, Claudia B. Miziara, Ivan Dieb Ann Dermatol Original Article BACKGROUND: Bullous pemphigoid (BP) is an autoimmune disease with bullous vesicles and an incidence of 0.2 to 1.4 per 100,000 inhabitants. Many studies have been published demonstrating the association of pemphigoid with HLA class II system alleles in different populations, however there are no data on the BP, one of the most heterogeneous in the world. OBJECTIVE: To typify HLA alleles in Brazilians with Bullous pemphigoid. METHODS: The study group included 17 Brazilian patients with a confirmed diagnosis of BP from a hospital in Sao Paulo city, southeast Brazil. DNA was extracted from peripheral blood using Qiagen kits and HLA A, B, C, DR and DQ typing was performed using polymerase chain reaction. The control group was composed of a database of 297 deceased donors from the city of Sao Paulo. The statistical significance level was adjusted using the Bonferroni correction depending on the phenotypic frequencies evaluated for HLA class I (A, B and C) and class II (DRB1, DQB1 and DQA1). RESULTS: Our findings show that alleles HLA C*17, DQB1*03:01, DQA1*01:03 and DQA1*05:05 are associated with the onset of the disease in the Brazilian population, with relative risks of 8.31 (2.46 to 28.16), 3.76 (1.81 to 7.79), 3.57 (1.53 to 8.33), and 4.02 (1.87 to 8.64), respectively (p<0.005). CONCLUSION: Our data indicate that Brazilian patients with BP present the same genetic predisposition linked to HLA-DQB1*03:01 previously reported in Caucasian and Iranian individuals and our study introduces three new alleles (C*17, DQA1*01:03 and DQA1*05:05) involved in the pathophysiology of BP. The Korean Dermatological Association; The Korean Society for Investigative Dermatology 2018-02 2017-12-26 /pmc/articles/PMC5762482/ /pubmed/29386826 http://dx.doi.org/10.5021/ad.2018.30.1.8 Text en Copyright © 2018 The Korean Dermatological Association and The Korean Society for Investigative Dermatology http://creativecommons.org/licenses/by-nc/4.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Article Chagury, Azis Arruda Sennes, Luiz Ubirajara Gil, Julio Miranda Kalil, Jorge Rodrigues, Helcio Rosales, Claudia B. Miziara, Ivan Dieb HLA-C*17, DQB1*03:01, DQA1*01:03 and DQA1*05:05 Alleles Associated to Bullous Pemphigoid in Brazilian Population |
title | HLA-C*17, DQB1*03:01, DQA1*01:03 and DQA1*05:05 Alleles Associated to Bullous Pemphigoid in Brazilian Population |
title_full | HLA-C*17, DQB1*03:01, DQA1*01:03 and DQA1*05:05 Alleles Associated to Bullous Pemphigoid in Brazilian Population |
title_fullStr | HLA-C*17, DQB1*03:01, DQA1*01:03 and DQA1*05:05 Alleles Associated to Bullous Pemphigoid in Brazilian Population |
title_full_unstemmed | HLA-C*17, DQB1*03:01, DQA1*01:03 and DQA1*05:05 Alleles Associated to Bullous Pemphigoid in Brazilian Population |
title_short | HLA-C*17, DQB1*03:01, DQA1*01:03 and DQA1*05:05 Alleles Associated to Bullous Pemphigoid in Brazilian Population |
title_sort | hla-c*17, dqb1*03:01, dqa1*01:03 and dqa1*05:05 alleles associated to bullous pemphigoid in brazilian population |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5762482/ https://www.ncbi.nlm.nih.gov/pubmed/29386826 http://dx.doi.org/10.5021/ad.2018.30.1.8 |
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