High-mobility group box-1 protein serum levels do not reflect monocytic function in patients with sepsis-induced immunosuppression.

Mediators of Inflammation
Nadine UnterwalderJoerg C Schefold

Abstract

High-mobility group box-1 (HMGB-1) protein is released during "late sepsis" by activated monocytes. We investigated whether systemic HMGB-1 levels are associated with indices of monocytic activation/function in patients with sepsis-induced immunosuppression. 36 patients (31 male, 64 +/- 14 years) with severe sepsis/septic shock and monocytic deactivation (reduced mHLA-DR expression and TNF-alpha release) were assessed in a subanalysis of a placebo-controlled immunostimulatory trial using GM-CSF. HMGB-1 levels were assessed over a 9-day treatment interval. Data were compared to standardized biomarkers of monocytic immunity (mHLA-DR expression, TNF-alpha release). HMGB-1 levels were enhanced in sepsis but did not differ between treatment and placebo groups at baseline (14.6 +/- 13.5 versus 12.5 +/- 11.5 ng/ml, P = .62). When compared to controls, HMGB-1 level increased transiently in treated patients at day 5 (27.8 +/- 21.7 versus 11.0 +/- 14.9, P = .01). Between group differences were not noted at any other point of assessment. HMGB-1 levels were not associated with markers of monocytic function or clinical disease severity. GM-CSF treatment for sepsis-induced immunosuppression induces a moderate but only transient increase in s...Continue Reading

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Citations

Jul 11, 2014·Molecular Aspects of Medicine·Rui KangDaolin Tang

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Methods Mentioned

BETA
acetylation
ELISA

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