Mannose-binding lectin 2 (MBL2) gene polymorphisms do not influence frequency of infections in chronic lymphocytic leukemia patients
| Autor: | Patrícia Moura, Antonio R. Lucena-Araujo, Katarina Holanda, Cíntia G. F. Machado, Maria Taciana Holanda Cavalcanti, Aderson S Araujo, Aleide S. Lima, Adônis Quintas, Luydson Richardson Silva Vasconcelos, Taciana Furtado de Mendonça, Marcos André Cavalcanti Bezerra |
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| Rok vydání: | 2014 |
| Předmět: |
Original article
Mannose-binding lectin business.industry lcsh:RC633-647.5 Chronic lymphocytic leukemia Haplotype B-cell lcsh:Diseases of the blood and blood-forming organs Hematology medicine.disease Polymorphism single nucleotide Exon Real-time polymerase chain reaction medicine.anatomical_structure Infectious disease (medical specialty) Genotype Immunology medicine business Infection Leukemia lymphocytic chronic B cell Mannan-binding lectin |
| Zdroj: | Revista Brasileira de Hematologia e Hemoterapia v.36 n.1 2014 Revista brasileira de hematologia e hemoterapia Associação Brasileira de Hematologia e Hemoterapia e Terapia Celular (ABHHTC) instacron:ABHHTC Revista Brasileira de Hematologia e Hemoterapia, Volume: 36, Issue: 1, Pages: 29-34, Published: JAN 2014 Revista Brasileira de Hematologia e Hemoterapia, Vol 36, Iss 1, Pp 29-34 (2014) Revista Brasileira de Hematologia e Hemoterapia |
| ISSN: | 1516-8484 |
| DOI: | 10.5581/1516-8484.20140010 |
| Popis: | Background Infectious complications represent the main cause of morbidity and mortality in chronic lymphocytic leukemia. It has been reported that polymorphisms of the mannose-binding lectin 2 (MBL2) genes are correlated with MBL protein serum levels and, consequently, are associated with the development of infectious diseases. Objective The purpose of this study was to investigate the possible association between MBL2 gene polymorphisms and risk of infection in chronic lymphocytic leukemia patients. Methods Peripheral blood samples from 116 chronic lymphocytic leukemia patients were collected; after genomic DNA extraction, real time polymerase chain reaction was used to determine the polymorphisms of the promoter region and exon 1 of the MBL2 gene. Results A high frequency of Binet stage A (p-value = 0.005) and absence of splenomegaly (p-value = 0.002) were observed in patients with no infection; however, variant alleles/ genotypes and haplotypes of this gene had no impact on the risk of infection. Conclusion To the authors’ knowledge, this is the first study describing the association between MBL2 polymorphisms and infectious disease in chronic lymphocytic leukemia. Although it was not possible to demonstrate any influence of MBL2 polymorphisms as a genetic modulator of infection in chronic lymphocytic leukemia, the authors believe that the present data are clinically relevant and provide the basis for future studies. © 2014 Associação Brasileira de Hematologia, Hemoterapia e Terapia Celular. All rights reserved. |
| Databáze: | OpenAIRE |
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