Evidence map›Paper›PMID 32188504›Full record

ArticleCritical care (London, England)2020

Dynamic LTR retrotransposon transcriptome landscape in septic shock patients.

Marine Mommert, Olivier Tabone, Audrey Guichard, Guy Oriol, Elisabeth Cerrato, Mélanie Denizot, Valérie Cheynet, Alexandre Pachot, Alain Lepape, Guillaume Monneret and 6 more

Abstract read
In one paragraph

Article in Critical care (London, England), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
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

6 citing papers in PubMed.

  1. Review
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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

16 authors.

Marine MommertJoint Research Unit, bioMerieux, Centre Hospitalier Lyon Sud, Hospice Civils de Lyon, 165 Chemin du Grand Revoyet, 69310, Pierre-Benite, France. marine.mommert@biomerieux.com.
Olivier TaboneEA 7426 Pathophysiology of Injury-Induced Immunosuppression, University of Lyon1-Hospices Civils de Lyon-bioMérieux, Hôspital Edouard Herriot, 5 Place d'Arsonval, 69437, Lyon Cedex 3, France.
Audrey GuichardJoint Research Unit, bioMerieux, Centre Hospitalier Lyon Sud, Hospice Civils de Lyon, 165 Chemin du Grand Revoyet, 69310, Pierre-Benite, France.
Guy OriolJoint Research Unit, bioMerieux, Centre Hospitalier Lyon Sud, Hospice Civils de Lyon, 165 Chemin du Grand Revoyet, 69310, Pierre-Benite, France.
Elisabeth CerratoEA 7426 Pathophysiology of Injury-Induced Immunosuppression, University of Lyon1-Hospices Civils de Lyon-bioMérieux, Hôspital Edouard Herriot, 5 Place d'Arsonval, 69437, Lyon Cedex 3, France.
Mélanie DenizotEA 7426 Pathophysiology of Injury-Induced Immunosuppression, University of Lyon1-Hospices Civils de Lyon-bioMérieux, Hôspital Edouard Herriot, 5 Place d'Arsonval, 69437, Lyon Cedex 3, France.
Valérie CheynetJoint Research Unit, bioMerieux, Centre Hospitalier Lyon Sud, Hospice Civils de Lyon, 165 Chemin du Grand Revoyet, 69310, Pierre-Benite, France.
Alexandre PachotEA 7426 Pathophysiology of Injury-Induced Immunosuppression, University of Lyon1-Hospices Civils de Lyon-bioMérieux, Hôspital Edouard Herriot, 5 Place d'Arsonval, 69437, Lyon Cedex 3, France.
Alain LepapeIntensive Care Unit, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, Pierre Bénite, France.
Guillaume MonneretEA 7426 Pathophysiology of Injury-Induced Immunosuppression, University of Lyon1-Hospices Civils de Lyon-bioMérieux, Hôspital Edouard Herriot, 5 Place d'Arsonval, 69437, Lyon Cedex 3, France.
Fabienne VenetEA 7426 Pathophysiology of Injury-Induced Immunosuppression, University of Lyon1-Hospices Civils de Lyon-bioMérieux, Hôspital Edouard Herriot, 5 Place d'Arsonval, 69437, Lyon Cedex 3, France.
Karen Brengel-PesceJoint Research Unit, bioMerieux, Centre Hospitalier Lyon Sud, Hospice Civils de Lyon, 165 Chemin du Grand Revoyet, 69310, Pierre-Benite, France.
Julien TextorisEA 7426 Pathophysiology of Injury-Induced Immunosuppression, University of Lyon1-Hospices Civils de Lyon-bioMérieux, Hôspital Edouard Herriot, 5 Place d'Arsonval, 69437, Lyon Cedex 3, France.
François MalletJoint Research Unit, bioMerieux, Centre Hospitalier Lyon Sud, Hospice Civils de Lyon, 165 Chemin du Grand Revoyet, 69310, Pierre-Benite, France.
MIPrea Study Group
REALISM Study Group

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSepsis is defined as a life-threatening organ dysfunction caused by a dysregulated host response to infection. Numerous studies have explored the complex and dynamic transcriptome modulations observed in sepsis patients, but a large fraction of the transcriptome remains unexplored. This fraction could provide information to better understand sepsis pathophysiology. Multiple levels of interaction between human endogenous retroviruses (HERV) and the immune response have led us to hypothesize that sepsis is associated with HERV transcription and that HERVs may contribute to a signature among septic patients allowing stratification and personalized management.

methodsWe used a high-density microarray and RT-qPCR to evaluate the HERV and Mammalian Apparent Long Terminal Repeat retrotransposons (MaLR) transcriptome in a pilot study that included 20 selected septic shock patients, stratified on mHLA-DR expression, with samples collected on day 1 and day 3 after inclusion. We validated the results in an unselected, independent cohort that included 100 septic shock patients on day 3 after inclusion. We compared septic shock patients, according to their immune status, to describe the transcriptional HERV/MaLR and conventional gene expression. For differential expression analyses, moderated t tests were performed and Wilcoxon signed-rank tests were used to analyze RT-qPCR results.

resultsWe showed that 6.9% of the HERV/MaLR repertoire was transcribed in the whole blood, and septic shock was associated with an early modulation of a few thousand of these loci, in comparison to healthy volunteers. We provided evidence that a subset of HERV/MaLR and conventional genes were differentially expressed in septic shock patients, according to their immune status, using monocyte HLA-DR (mHLA-DR) expression as a proxy. A group of 193 differentially expressed HERV/MaLR probesets, tested in an independent septic shock cohort, identified two groups of patients with different immune status and severity features.

conclusionWe demonstrated that a large, unexplored part of our genome, which codes for HERV/MaLR, may be linked to the host immune response. The identified set of HERV/MaLR probesets should be evaluated on a large scale to assess the relevance of these loci in the stratification of septic shock patients. This may help to address the heterogeneity of these patients.

Indexed as

Shock, SepticAgedEndogenous RetrovirusesFemaleHLA-DR AntigensHumansMaleMiddle AgedMonocytesPilot ProjectsRetroelementsTerminal Repeat SequencesTranscriptomeHLA-DR AntigensRetroelementsHERV transcriptomeImmunosuppressionmHLA-DR expressionSeptic shock patientsWhole blood

Identifiers

PMID32188504
PMCPMC7081582

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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.