Evidence map›Paper›PMID 37301958›Full record

ArticleJournal of translational medicine2023

Plasma proteome of Long-COVID patients indicates HIF-mediated vasculo-proliferative disease with impact on brain and heart function.

Cristiana Iosef, Michael J Knauer, Michael Nicholson, Logan R Van Nynatten, Gediminas Cepinskas, Sorin Draghici, Victor K M Han, Douglas D Fraser

Open access · goldAbstract read
In one paragraph

Article in Journal of translational medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed, 4 pooled it
13.0field-weighted citation impact, top 1% 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

49 citing papers in PubMed, 4 syntheses or guidelines pooled it, 61 citations in OpenAlex.

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  4. Blood Biomarkers of Long COVID: A Systematic Review.Molecular diagnosis & therapy · 2024
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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

8 authors at 5 institutions in 3 countries.

Cristiana IosefChildren's Health Research Institute, Victoria Research Laboratories, 800 Commissioners Road East, London, ON, N6C 2V5, Canada. cristiana.iosef@lhsc.on.ca.
Michael J KnauerDepartment of Pathology and Laboratory Medicine, London, ON, N6A 5C1, Canada.
Michael NicholsonDepartment of Medicine, Western University, London, ON, N6A 5C1, Canada.
Logan R Van NynattenDepartment of Medicine, Western University, London, ON, N6A 5C1, Canada.
Gediminas CepinskasLawson Health Research Institute, London, ON, N6C 2R5, Canada.
Sorin DraghiciDepartment of Computer Science College of Engineering, Wayne State University, Ann Arbor, MI, 48202, USA.
Victor K M HanChildren's Health Research Institute, Victoria Research Laboratories, 800 Commissioners Road East, London, ON, N6C 2V5, Canada.
Douglas D FraserChildren's Health Research Institute, Victoria Research Laboratories, 800 Commissioners Road East, London, ON, N6C 2V5, Canada. douglas.fraser@lhsc.on.ca.
Western University · CAChildren’s Health Research Institute · CALawson Health Research Institute · CASystems, Applications & Products in Data Processing (Canada) · CAWayne State University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsLong-COVID occurs after SARS-CoV-2 infection and results in diverse, prolonged symptoms. The present study aimed to unveil potential mechanisms, and to inform prognosis and treatment.

methodsPlasma proteome from Long-COVID outpatients was analyzed in comparison to matched acutely ill COVID-19 (mild and severe) inpatients and healthy control subjects. The expression of 3072 protein biomarkers was determined with proximity extension assays and then deconvoluted with multiple bioinformatics tools into both cell types and signaling mechanisms, as well as organ specificity.

resultsCompared to age- and sex-matched acutely ill COVID-19 inpatients and healthy control subjects, Long-COVID outpatients showed natural killer cell redistribution with a dominant resting phenotype, as opposed to active, and neutrophils that formed extracellular traps. This potential resetting of cell phenotypes was reflected in prospective vascular events mediated by both angiopoietin-1 (ANGPT1) and vascular-endothelial growth factor-A (VEGFA). Several markers (ANGPT1, VEGFA, CCR7, CD56, citrullinated histone 3, elastase) were validated by serological methods in additional patient cohorts. Signaling of transforming growth factor-β1 with probable connections to elevated EP/p300 suggested vascular inflammation and tumor necrosis factor-α driven pathways. In addition, a vascular proliferative state associated with hypoxia inducible factor 1 pathway suggested progression from acute COVID-19 to Long-COVID. The vasculo-proliferative process predicted in Long-COVID might contribute to changes in the organ-specific proteome reflective of neurologic and cardiometabolic dysfunction.

conclusionsTaken together, our findings point to a vasculo-proliferative process in Long-COVID that is likely initiated either prior hypoxia (localized or systemic) and/or stimulatory factors (i.e., cytokines, chemokines, growth factors, angiotensin, etc). Analyses of the plasma proteome, used as a surrogate for cellular signaling, unveiled potential organ-specific prognostic biomarkers and therapeutic targets.

Indexed as

COVID-19BiomarkersBrainHumansPost-Acute COVID-19 SyndromeProspective StudiesProteomeSARS-CoV-2BiomarkersProteome

Identifiers

PMID37301958
PMCPMC10257382
OpenAlexW4380151840

What OpenQuestion holds

Textmetadata
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.