Global DNA methylation pattern and correlation with complement system proteins in Brazilian patients with systemic lupus erythematosus

Autores

  • Paolo Ruggero Errante Department of Immunology, Institute of Biomedical Sciences (IBS), University of São Paulo (USP)
  • Sandro Félix Perazzio Department of Rheumatology, Escola Paulista de Medicina (EPM), Federal University of São Paulo (UNIFESP)
  • Francisco Sandro Menezes Rodrigues Department of Pharmacology, Escola Paulista de Medicina (EPM), Federal University of São Paulo (UNIFESP)
  • Renato Ribeiro Nogueira Ferraz Programa de Mestrado Profissional em Administração - Gestão em Sistemas de Saúde (PMPA-GSS) - Universidade Nove de Julho (UNINOVE)
  • Afonso Caricati-Neto Department of Pharmacology, Escola Paulista de Medicina (EPM), Federal University of São Paulo (UNIFESP)

DOI:

https://doi.org/10.5585/conssaude.v13n4.5142

Palavras-chave:

Autoimmune diseases, DNA methylation, Genetic, Proteins, Systemic lupus erythematous.

Resumo

Introduction: Nucleic acid methylation may have major effects on gene expression patterns and, by consequence, on the development of autoimmunity, like Systemic Lupus Erythematosus (SLE). Objective: To investigate the pattern of global DNA methylation in SLE patients and compare this pattern with laboratory parameters. Methods: Genomic DNA was isolated from SLE patients with non-active disease (SLEDAI<6), SLE patients with active disease (SLEDAI>6), and healthy individuals. Global DNA methylation was evaluated by digestion of genomic DNA with HpaII and MspI and compared with laboratory parameters. Results and conclusion: A statistical difference in DNA global methylation was observed when SLE patients were compared to healthy individuals. A positive correlation was observed between the frequency of global methylation and C3 and C4 serum levels for SLE patients with SLEDAI<6. These results suggest that the relative amount of DNA methylation is increased in SLE patients, and differential methylation of genes related to the complement pathway alters gene expression involved in autoimmune response in SLE patients.

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Biografia do Autor

Renato Ribeiro Nogueira Ferraz, Programa de Mestrado Profissional em Administração - Gestão em Sistemas de Saúde (PMPA-GSS) - Universidade Nove de Julho (UNINOVE)

Bacharel e Licenciado em Ciências Biológicas pela Universidade do Grande ABC (UniABC) - SP. Mestre e Doutor em Nefrologia - Ciências Básicas, pela Universidade Federal de São Paulo (UNIFESP) - SP. Docente da Disciplina de Metodologia do Ensino e da Pesquisa, do Curso de Pós-graduação em Saúde Coletiva com Ênfase em Programa de Saúde da Família (PSF) pela Universidade Nove de Julho (UNINOVE).

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Publicado

12.02.2015

Como Citar

1.
Errante PR, Perazzio SF, Rodrigues FSM, Ferraz RRN, Caricati-Neto A. Global DNA methylation pattern and correlation with complement system proteins in Brazilian patients with systemic lupus erythematosus. Cons. Saúde [Internet]. 12º de fevereiro de 2015 [citado 19º de abril de 2024];13(4):516-23. Disponível em: https://periodicos.uninove.br/saude/article/view/5142

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