Deciphering heterogeneity of septic shock patients using immune functional assays: a proof of concept study.
Aged
Biomarkers
/ blood
Cross Infection
Enterotoxins
/ immunology
Female
Gene Expression
Gene Expression Profiling
/ methods
HLA-DR Antigens
/ metabolism
Humans
Lipopolysaccharides
/ pharmacology
Male
Middle Aged
Monocytes
/ metabolism
Proof of Concept Study
Sepsis
/ metabolism
Shock, Septic
/ classification
Tumor Necrosis Factor-alpha
/ metabolism
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
30 09 2020
30 09 2020
Historique:
received:
16
09
2019
accepted:
26
08
2020
entrez:
1
10
2020
pubmed:
2
10
2020
medline:
20
1
2021
Statut:
epublish
Résumé
The complexity of sepsis pathophysiology hinders patient management and therapeutic decisions. In this proof-of-concept study we characterised the underlying host immune response alterations using a standardised immune functional assay (IFA) in order to stratify a sepsis population. In septic shock patients, ex vivo LPS and SEB stimulations modulated, respectively, 5.3% (1/19) and 57.1% (12/21) of the pathways modulated in healthy volunteers (HV), highlighting deeper alterations induced by LPS than by SEB. SEB-based clustering, identified 3 severity-based groups of septic patients significantly different regarding mHLA-DR expression and TNFα level post-LPS, as well as 28-day mortality, and nosocomial infections. Combining the results from two independent cohorts gathering 20 HV and 60 patients, 1 cluster grouped all HV with 12% of patients. The second cluster grouped 42% of patients and contained all non-survivors. The third cluster grouped 46% of patients, including 78% of those with nosocomial infections. The molecular features of these clusters indicated a distinctive contribution of previously described genes defining a "healthy-immune response" and a "sepsis-related host response". The third cluster was characterised by potential immune recovery that underlines the possible added value of SEB-based IFA to capture the sepsis immune response and contribute to personalised management.
Identifiants
pubmed: 32999313
doi: 10.1038/s41598-020-73014-2
pii: 10.1038/s41598-020-73014-2
pmc: PMC7527338
doi:
Substances chimiques
Biomarkers
0
Enterotoxins
0
HLA-DR Antigens
0
Lipopolysaccharides
0
TNF protein, human
0
Tumor Necrosis Factor-alpha
0
enterotoxin B, staphylococcal
39424-53-8
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
16136Subventions
Organisme : Marie Curie
ID : 676129
Pays : United Kingdom
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