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© Christelle Durand
Microscopie d'un neurone. Le marquage jaune montre les synapses.
Publication : Journal of endotoxin research

Immunodepression in sepsis and SIRS assessed by ex vivo cytokine production is not a generalized phenomenon: a review

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Journal of endotoxin research - 01 Jan 2001

Cavaillon JM, Adib-Conquy M, Cloëz-Tayarani I, Fitting C

Link to Pubmed [PMID] – 11521088

J. Endotoxin Res. 2001;7(2):85-93

Sepsis and non-infectious systemic inflammatory response syndrome (SIRS) are paradoxically associated with an exacerbated production of cytokines, as assessed by their presence in biological fluids, and a diminished ability of circulating leukocytes to produce cytokine upon in vitro activation. In this review, we depict that the observed cellular hyporeactivity is not a global phenomenon and that some signalling pathways are unaltered and allow the cells to respond normally to certain stimuli. Furthermore, we illustrate that during sepsis and SIRS, cells derived from tissues are either fully responsive to ex vivo stimuli or even primed, in contrast to cells derived from hematopoietic compartments (blood, spleen, etc.) which are hyporeactive. In addition to cytokine production, nuclear factor-kappa B (NF-kappa B) status within leukocytes can be used as a useful marker of hypo- or hyper-reactivity. We illustrate that the immune-depression reported in sepsis and SIRS patients, often revealed by a diminished capacity of leukocytes to respond to lipopolysaccharide, is not a generalized phenomenon and that SIRS is associated with a compartmentalized responsiveness which involves either anergic or primed cells.

https://www.ncbi.nlm.nih.gov/pubmed/11521088