Details

Autor(en) / Beteiligte

• Hugo Montes, A.
• Valle-Garay, Eulalia
• Martin, Guadalupe
• Collazos, Julio
• Alvarez, Victoria
• Meana, Alvaro
• Pérez-Is, Laura
• Carton, José A.
• Taboada, Francisco
• Asensi, Víctor

Titel

The TNF-α (–238 G/A) polymorphism could protect against development of severe sepsis

Ist Teil von

• Innate immunity (London, England), 2021-07, Vol.27 (5), p.409-420

Ort / Verlag

London, England: SAGE Publications

Erscheinungsjahr

2021

Link zum Volltext

Quelle

MEDLINE

Beschreibungen/Notizen

• Primary responses in sepsis-mediated inflammation are regulated by pro-inflammatory cytokines. Variations in the cytokine genes might modify their transcription or expression, plasma cytokines levels and response to sepsis. Activation protein-1 (AP-1) and NF-κB regulate cytokines gene expression in sepsis. A total of 90 severely septic and 91 non-infected patients were prospectively studied. IL-1α (–889 C/T), IL-1β (+3954 C/T), IL-6 (–174 G/C), TNF-α (–238 G/A), TNF-α (–308G/A), IL-8 (–251A/T) and IL-10 (–1082 G/A) SNPs, plasma IL-1β, IL-4, IL-6, IL-8, IL-10, IL-13, IFN-γ, TNF-α and monocyte chemoattractant protein 1 (MCP-1) levels, and AP-1 and NF-κB gene expression by neutrophils were assessed. A allele carriers of TNF-α (–238 G/A) SNP were less frequent among septic patients. IL-6, IL-8, IL-10, TNF-α and MCP-1 levels were higher, and AP-1 and NF-κB gene expressions lower in septic patients. Sepsis was independently associated with higher fibrinogen, neutrophils counts and IL-8 levels, lower prothrombin, absence of the variant A allele of the TNF-α (–238 G/A) SNP, and haemodynamic failure. Death was independently associated with a higher APACHE II score, higher IL-8 levels, and the diagnosis of sepsis. TNF-a (–238 G/A) SNP could protect against sepsis development. Higher IL-8 levels are predictive of sepsis and mortality.