Signatures of inflammation and impending multiple organ dysfunction in the hyperacute phase of trauma: A prospective cohort study
Publication Date
July 17, 2017
Authors
Claudia P. Cabrera, Joanna Manson, Joanna M. Shepherd, Hew D. Torrance, et al
Volume
14
Issue
7
Pages
e1002352
DOI
https://dx.plos.org/10.1371/journal.pmed.1002352
Publisher URL
http://journals.plos.org/plosmedicine/article?id=10.1371%2Fjournal.pmed.1002352
Scopus
85026645673
Mendeley
http://www.mendeley.com/research/signatures-inflammation-impending-multiple-organ-dysfunction-hyperacute-phase-trauma-prospective-coh
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Mendeley | Further Information

{"title"=>"Signatures of inflammation and impending multiple organ dysfunction in the hyperacute phase of trauma: A prospective cohort study", "type"=>"journal", "authors"=>[{"first_name"=>"Claudia P.", "last_name"=>"Cabrera", "scopus_author_id"=>"57201181791"}, {"first_name"=>"Joanna", "last_name"=>"Manson", "scopus_author_id"=>"37034542100"}, {"first_name"=>"Joanna M.", "last_name"=>"Shepherd", "scopus_author_id"=>"57191751841"}, {"first_name"=>"Hew D.", "last_name"=>"Torrance", "scopus_author_id"=>"56021576000"}, {"first_name"=>"David", "last_name"=>"Watson", "scopus_author_id"=>"57201370820"}, {"first_name"=>"M. Paula", "last_name"=>"Longhi", "scopus_author_id"=>"9637887400"}, {"first_name"=>"Mimoza", "last_name"=>"Hoti", "scopus_author_id"=>"36484798800"}, {"first_name"=>"Minal B.", "last_name"=>"Patel", "scopus_author_id"=>"57195260915"}, {"first_name"=>"Michael", "last_name"=>"O’Dwyer", "scopus_author_id"=>"55627256300"}, {"first_name"=>"Sussan", "last_name"=>"Nourshargh", "scopus_author_id"=>"7004387169"}, {"first_name"=>"Daniel J.", "last_name"=>"Pennington", "scopus_author_id"=>"7103204646"}, {"first_name"=>"Michael R.", "last_name"=>"Barnes", "scopus_author_id"=>"35498112100"}, {"first_name"=>"Karim", "last_name"=>"Brohi", "scopus_author_id"=>"6505811215"}], "year"=>2017, "source"=>"PLoS Medicine", "identifiers"=>{"pui"=>"617639427", "issn"=>"15491676", "pmid"=>"28715416", "sgr"=>"85026645673", "scopus"=>"2-s2.0-85026645673", "isbn"=>"1111111111", "doi"=>"10.1371/journal.pmed.1002352"}, "id"=>"433c6174-5eca-3643-9f5b-3c8071af0c76", "abstract"=>"BACKGROUND Severe trauma induces a widespread response of the immune system. This \"genomic storm\" can lead to poor outcomes, including Multiple Organ Dysfunction Syndrome (MODS). MODS carries a high mortality and morbidity rate and adversely affects long-term health outcomes. Contemporary management of MODS is entirely supportive, and no specific therapeutics have been shown to be effective in reducing incidence or severity. The pathogenesis of MODS remains unclear, and several models are proposed, such as excessive inflammation, a second-hit insult, or an imbalance between pro- and anti-inflammatory pathways. We postulated that the hyperacute window after trauma may hold the key to understanding how the genomic storm is initiated and may lead to a new understanding of the pathogenesis of MODS. METHODS AND FINDINGS We performed whole blood transcriptome and flow cytometry analyses on a total of 70 critically injured patients (Injury Severity Score [ISS] ≥ 25) at The Royal London Hospital in the hyperacute time period within 2 hours of injury. We compared transcriptome findings in 36 critically injured patients with those of 6 patients with minor injuries (ISS ≤ 4). We then performed flow cytometry analyses in 34 critically injured patients and compared findings with those of 9 healthy volunteers. Immediately after injury, only 1,239 gene transcripts (4%) were differentially expressed in critically injured patients. By 24 hours after injury, 6,294 transcripts (21%) were differentially expressed compared to the hyperacute window. Only 202 (16%) genes differentially expressed in the hyperacute window were still expressed in the same direction at 24 hours postinjury. Pathway analysis showed principally up-regulation of pattern recognition and innate inflammatory pathways, with down-regulation of adaptive responses. Immune deconvolution, flow cytometry, and modular analysis suggested a central role for neutrophils and Natural Killer (NK) cells, with underexpression of T- and B cell responses. In the transcriptome cohort, 20 critically injured patients later developed MODS. Compared with the 16 patients who did not develop MODS (NoMODS), maximal differential expression was seen within the hyperacute window. In MODS versus NoMODS, 363 genes were differentially expressed on admission, compared to only 33 at 24 hours postinjury. MODS transcripts differentially expressed in the hyperacute window showed enrichment among diseases and biological functions associated with cell survival and organismal death rather than inflammatory pathways. There was differential up-regulation of NK cell signalling pathways and markers in patients who would later develop MODS, with down-regulation of neutrophil deconvolution markers. This study is limited by its sample size, precluding more detailed analyses of drivers of the hyperacute response and different MODS phenotypes, and requires validation in other critically injured cohorts. CONCLUSIONS In this study, we showed how the hyperacute postinjury time window contained a focused, specific signature of the response to critical injury that led to widespread genomic activation. A transcriptomic signature for later development of MODS was present in this hyperacute window; it showed a strong signal for cell death and survival pathways and implicated NK cells and neutrophil populations in this differential response.", "link"=>"http://www.mendeley.com/research/signatures-inflammation-impending-multiple-organ-dysfunction-hyperacute-phase-trauma-prospective-coh", "reader_count"=>23, "reader_count_by_academic_status"=>{"Unspecified"=>1, "Professor > Associate Professor"=>1, "Student > Doctoral Student"=>4, "Researcher"=>5, "Student > Ph. D. Student"=>2, "Other"=>5, "Student > Master"=>3, "Student > Bachelor"=>1, "Professor"=>1}, "reader_count_by_user_role"=>{"Unspecified"=>1, "Professor > Associate Professor"=>1, "Student > Doctoral Student"=>4, "Researcher"=>5, "Student > Ph. D. Student"=>2, "Other"=>5, "Student > Master"=>3, "Student > Bachelor"=>1, "Professor"=>1}, "reader_count_by_subject_area"=>{"Unspecified"=>1, "Biochemistry, Genetics and Molecular Biology"=>2, "Medicine and Dentistry"=>11, "Agricultural and Biological Sciences"=>2, "Neuroscience"=>1, "Pharmacology, Toxicology and Pharmaceutical Science"=>1, "Psychology"=>2, "Immunology and Microbiology"=>3}, "reader_count_by_subdiscipline"=>{"Medicine and Dentistry"=>{"Medicine and Dentistry"=>11}, "Neuroscience"=>{"Neuroscience"=>1}, "Psychology"=>{"Psychology"=>2}, "Immunology and Microbiology"=>{"Immunology and Microbiology"=>3}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>2}, "Biochemistry, Genetics and Molecular Biology"=>{"Biochemistry, Genetics and Molecular Biology"=>2}, "Unspecified"=>{"Unspecified"=>1}, "Pharmacology, Toxicology and Pharmaceutical Science"=>{"Pharmacology, Toxicology and Pharmaceutical Science"=>1}}, "group_count"=>2}

Scopus | Further Information

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