NLRC4 methylation and its response to intravenous immunoglobulin therapy in Kawasaki disease: a case control study.
BMC Pediatr
; 24(1): 190, 2024 Mar 16.
Article
em En
| MEDLINE
| ID: mdl-38493129
ABSTRACT
BACKGROUND:
Kawasaki disease (KD) is a systemic vasculitis accompanied by many systemic physiological and biochemical changes. Elucidating its molecular mechanisms is crucial for diagnosing and developing effective treatments. NLR Family CARD Domain Containing 4 (NLRC4) encodes the key components of inflammasomes that function as pattern recognition receptors. The purpose of this study was to investigate the potential of NLRC4 methylation as a biomarker for KD.METHODS:
In this study, pyrosequencing was utilized to analyze NLRC4 promoter methylation in blood samples from 44 children with initial complete KD and 51 matched healthy controls. Methylation at five CpG sites within the NLRC4 promoter region was evaluated.RESULTS:
Compared to controls, NLRC4 methylation significantly decreased in KD patients (CpG1 p = 2.93E-06; CpG2 p = 2.35E-05; CpG3 p = 6.46E-06; CpG4 p = 2.47E-06; CpG5 p = 1.26E-05; average methylation p = 5.42E-06). These changes were significantly reversed after intravenous immunoglobulin (IVIG) treatment. ROC curve analysis demonstrated remarkable diagnostic capability of mean NLRC4 gene methylation for KD (areas under ROC curve = 0.844, sensitivity = 0.75, p = 9.61E-06, 95% confidence intervals were 0.762-0.926 for mean NLRC4 methylation). In addition, NLRC4 promoter methylation was shown to be significantly negatively correlated with the levels of central granulocyte percentage, age, mean haemoglobin quantity and mean erythrocyte volume. Besides, NLRC4 promoter methylation was positively correlated with lymphocyte percentage, lymphocyte absolute value.CONCLUSIONS:
Our work revealed the role of peripheral NLRC4 hypomethylation in KD pathogenesis and IVIG treatment response, could potentially serve as a treatment monitoring biomarker, although its precise functions remain to be elucidated.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Imunoglobulinas Intravenosas
/
Síndrome de Linfonodos Mucocutâneos
Limite:
Child
/
Humans
Idioma:
En
Ano de publicação:
2024
Tipo de documento:
Article