Evidence map›Paper›PMID 25882865›Full record

ArticleCritical care (London, England)2015

Human severe sepsis cytokine mixture increases β2-integrin-dependent polymorphonuclear leukocyte adhesion to cerebral microvascular endothelial cells in vitro.

Chris Blom, Brittany L Deller, Douglas D Fraser, Eric K Patterson, Claudio M Martin, Bryan Young, Patricia C Liaw, Payam Yazdan-Ashoori, Angelica Ortiz, Brian Webb and 3 more

Open access · goldAbstract read
In one paragraph

Article in Critical care (London, England), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 14% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

  1. Neutrophil activity in sepsis: a systematic review.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica · 2020
    Pooled it
  2. Article
  3. Dysregulation of neutrophil in sepsis: recent insights and advances.Cell communication and signaling : CCS · 2025
    Review
  4. Article
  5. Review
  6. Article
  7. Treg Cells Attenuate Neuroinflammation and Protect Neurons in a Mouse Model of Parkinson's Disease.Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology · 2020
    Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors at 6 institutions in 2 countries.

Chris BlomDepartment of Physiology and Pharmacology, Western University, 1151 Richmond Str. North, London, ON, N6A 5C1, Canada. christopher.blom@mail.utoronto.ca.
Brittany L DellerDepartment of Physiology and Pharmacology, Western University, 1151 Richmond Str. North, London, ON, N6A 5C1, Canada. bdeller2@uwo.ca.
Douglas D FraserDepartment of Physiology and Pharmacology, Western University, 1151 Richmond Str. North, London, ON, N6A 5C1, Canada. douglas.fraser@lhsc.on.ca.
Eric K PattersonCentre for Critical Illness Research, Lawson Health Research Institute, 800 Commissioners Rd East, London, ON, N6C 6B5, Canada. eric.patterson@lhsc.on.ca.
Claudio M MartinCentre for Critical Illness Research, Lawson Health Research Institute, 800 Commissioners Rd East, London, ON, N6C 6B5, Canada. cmartin1@uwo.ca.
Bryan YoungDepartment of Clinical Neurological Sciences, Western University, 339 Windermere Road, London, ON, N6A 5A5, Canada. bryan.young@lhsc.on.ca.
Patricia C LiawDepartment of Medicine, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4K1, Canada. patricia.liaw@taari.ca.
Payam Yazdan-AshooriDepartment of Physiology and Pharmacology, Western University, 1151 Richmond Str. North, London, ON, N6A 5C1, Canada. pashoori@gmail.com.
Angelica OrtizChildren's Health Research Institute, 800 Commissioners Road East, London, ON, N6C 2V5, Canada. angelica@angelicaortiz.ca.
Brian WebbThermo Fisher Scientific, 3747 N Meridian Rd, Rockford, IL, 61105, USA. brian.webb@thermofisher.com.
Greg KilmerThermo Fisher Scientific, 3747 N Meridian Rd, Rockford, IL, 61105, USA. greg.kilmer@thermofisher.com.
David E CarterLondon Regional Genomics Centre, Robarts Research Institute, 1151 Richmond Str. North, London, ON, N6A 5B7, Canada. dcarter@robarts.ca.
Gediminas CepinskasCentre for Critical Illness Research, Lawson Health Research Institute, 800 Commissioners Rd East, London, ON, N6C 6B5, Canada. gcepinsk@uwo.ca.
Western University · CALawson Health Research Institute · CAThermo Fisher Scientific (United States) · USChildren’s Health Research Institute · CAMcMaster University · CARobarts Clinical Trials · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionSepsis-associated encephalopathy (SAE) is a state of acute brain dysfunction in response to a systemic infection. We propose that systemic inflammation during sepsis causes increased adhesion of leukocytes to the brain microvasculature, resulting in blood-brain barrier dysfunction. Thus, our objectives were to measure inflammatory analytes in plasma of severe sepsis patients to create an experimental cytokine mixture (CM), and to use this CM to investigate the activation and interactions of polymorphonuclear leukocytes (PMN) and human cerebrovascular endothelial cells (hCMEC/D3) in vitro.

methodsThe concentrations of 41 inflammatory analytes were quantified in plasma obtained from 20 severe sepsis patients and 20 age- and sex-matched healthy controls employing an antibody microarray. Two CMs were prepared to mimic severe sepsis (SSCM) and control (CCM), and these CMs were then used for PMN and hCMEC/D3 stimulation in vitro. PMN adhesion to hCMEC/D3 was assessed under conditions of flow (shear stress 0.7 dyn/cm(2)).

resultsEight inflammatory analytes elevated in plasma obtained from severe sepsis patients were used to prepare SSCM and CCM. Stimulation of PMN with SSCM led to a marked increase in PMN adhesion to hCMEC/D3, as compared to CCM. PMN adhesion was abolished with neutralizing antibodies to either β2 (CD18), αL/β2 (CD11α/CD18; LFA-1) or αM/β2 (CD11β/CD18; Mac-1) integrins. In addition, immune-neutralization of the endothelial (hCMEC/D3) cell adhesion molecule, ICAM-1 (CD54) also suppressed PMN adhesion.

conclusionsHuman SSCM up-regulates PMN pro-adhesive phenotype and promotes PMN adhesion to cerebrovascular endothelial cells through a β2-integrin-ICAM-1-dependent mechanism. PMN adhesion to the brain microvasculature may contribute to SAE.

Indexed as

BiomarkersBlood-Brain BarrierCD18 AntigensCell AdhesionCerebrovascular CirculationCytokinesEndothelial CellsHumansIntercellular Adhesion Molecule-1In Vitro TechniquesNeutrophilsSepsis-Associated EncephalopathyBiomarkersCD18 AntigensCytokinesIntercellular Adhesion Molecule-1

Identifiers

PMID25882865
PMCPMC4409718
OpenAlexW2170977391

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.