Increased grp78 transcription is correlated to reduced tlr4 transcription in patients surviving sepsis

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Citações na Scopus
1
Tipo de produção
article
Data de publicação
2019
Título da Revista
ISSN da Revista
Título do Volume
Editora
WILEY
Autores
STAN, R. C.
BONIN, C. Pinto
CAMARGO, M. M. de
Citação
CLINICAL AND EXPERIMENTAL IMMUNOLOGY, v.198, n.2, p.273-280, 2019
Projetos de Pesquisa
Unidades Organizacionais
Fascículo
Resumo
Regulated transcriptional readthrough during stress maintains genome structure and ensures access to genes that are necessary for cellular recovery. A broad number of genes, including of the bacterial sensor Toll-like receptor 3 (TLR-4), are markedly transcribed on initiating the systemic inflammatory response. Here we study the transcriptional patterns of tlr4 and of its modulator grp78 during human sepsis, and establish their correlations with the outcome of patients. We measured the daily tlr4 and grp78 RNA expression levels in peripheral blood of septic patients, immediately after admission to intensive care, and modeled these RNA values with a sine damping function. We obtained negative correlations between the transcription of tlr4 and grp78 RNA in the survivor group. In contrast, such relation is lost in the deceased patients. Loss of transcriptional homeostasis predicted by our model within the initial 4 days of hospitalization was confirmed by death of those patients up to 28 days later.
Palavras-chave
gene regulation, gene transcription patterns, GRP78, sepsis, TLR-4
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