Synonymous mutation rs1129293 is associated with PIK3CG expression and PI3K gamma activation in patients with chronic Chagas cardiomyopathy

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art_SILVA_Synonymous_mutation_rs1129293_is_associated_with_PIK3CG_expression_2022.PDF (1.17 MB)
Citações na Scopus
0
Tipo de produção
article
Data de publicação
2022
DOI
Scopus
Web of Science
PubMed
Título da Revista
ISSN da Revista
Título do Volume
Editora
ELSEVIER GMBH
Autores
SILVA, Maria Claudia
FUZO, Carlos Alessandro
PAIVA, Isadora Marques
BIBO, Naira Lopes
OLIVEIRA, Maykon Tavares de
SOARES, Hellen Anastacia da Silva
CHEVILLARD, Christophe
CUNHA, Thiago Mattar
Citação
IMMUNOBIOLOGY, v.227, n.5, article ID 152242, 7p, 2022
Projetos de Pesquisa
Unidades Organizacionais
Fascículo
Resumo
Single nucleotide polymorphisms (SNPs) that do not change the composition of amino acids and cause synonymous mutations (sSNPs) were previously considered to lack any functional roles. However, sSNPs have recently been shown to interfere with protein expression owing to a myriad of factors related to the regulation of transcription, mRNA stability, and protein translation processes. In patients with Chagas disease, the presence of the synonymous mutation rs1129293 in phosphatidylinositol-4,5-bisphosphate 3-kinase gamma (PIK3CG) gene contributes to the development of the chronic Chagas cardiomyopathy (CCC), instead of the digestive or asymptomatic forms. In this study, we aimed to investigate whether rs1129293 is associated with the transcription of PIK3CG mRNA and its activity by quantifying AKT phosphorylation in the heart samples of 26 chagasic patients with CCC. Our results showed an association between rs1129293 and decreased PIK3CG mRNA expression levels in the cardiac tissues of patients with CCC. The phosphorylation levels of AKT, the protein target of PI3K, were also reduced in patients with this mutation, but were not correlated with PI3KCG mRNA expression levels. Moreover, bioinformatics analysis showed that rs1129293 and other SNPs in linkage disequilibrium (LD) were associated with the transcriptional regulatory elements, post-transcriptional modifications, and cell-specific splicing expression of PIK3CG mRNA. Therefore, our data demonstrates that the synonymous SNP rs1129293 is capable of affecting the PIK3CG mRNA expression and PI3K gamma activation.
Palavras-chave
Synonymous mutation, Chagas disease, PI3K?, Single nucleotide polymorphism, rs1129293
URI
https://observatorio.fm.usp.br/handle/OPI/50408
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Coleções
Artigos e Materiais de Revistas Científicas - FM/MCM
Artigos e Materiais de Revistas Científicas - HC/ICHC
Artigos e Materiais de Revistas Científicas - HC/InCor
Artigos e Materiais de Revistas Científicas - LIM/19
Artigos e Materiais de Revistas Científicas - LIM/60
Artigos e Materiais de Revistas Científicas - ODS/03