Evidence map›Paper›PMID 36324055›Full record

ArticleJournal of medical virology2023

IgG autoantibodies against ACE2 in SARS-CoV-2 infected patients.

Ewelina Hallmann, Dominika Sikora, Barbara Poniedziałek, Karol Szymański, Katarzyna Kondratiuk, Jakub Żurawski, Lidia Brydak, Piotr Rzymski

Open access · greenAbstract read
In one paragraph

Article in Journal of medical virology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.8field-weighted citation impact, top 7% 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

20 citing papers in PubMed, 28 citations in OpenAlex.

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  4. Autoantibodies targeting angiotensin-converting enzyme 2 are prevalent and not induced by SARS-CoV-2 infection.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2025
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  13. Discovery, validation, and prodrug design of an ACE2 activator for treating bacterial infection-induced lung inflammation.Journal of controlled release : official journal of the Controlled Release Society · 2023
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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 2 institutions in 1 country.

Ewelina HallmannDepartment of Influenza Research, National Influenza Center at the National Institute of Public Health NIH - National Research Institute in Warsaw, Warsaw, Poland.
Dominika SikoraDepartment of Environmental Medicine, Poznań University of Medical Sciences, Poznan, Poland.
Barbara PoniedziałekDepartment of Environmental Medicine, Poznań University of Medical Sciences, Poznan, Poland.
Karol SzymańskiDepartment of Influenza Research, National Influenza Center at the National Institute of Public Health NIH - National Research Institute in Warsaw, Warsaw, Poland.
Katarzyna KondratiukDepartment of Influenza Research, National Influenza Center at the National Institute of Public Health NIH - National Research Institute in Warsaw, Warsaw, Poland.
Jakub ŻurawskiDepartment of Immunobiology, Poznan University of Medical Sciences, Poznan, Poland.
Lidia BrydakDepartment of Influenza Research, National Influenza Center at the National Institute of Public Health NIH - National Research Institute in Warsaw, Warsaw, Poland.
Piotr RzymskiDepartment of Environmental Medicine, Poznań University of Medical Sciences, Poznan, Poland.ORCID 0000-0002-4713-0801
Narodowy Instytut Zdrowia Publicznego PZH – Państwowy Instytut Badawczy · PLPoznan University of Medical Sciences · PL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

How frequently autoantibodies against angiotensin-converting enzyme 2 (ACE2) occur in patients infected by SARS-CoV-2 is understudied and limited to investigations on a small sample size. The presence of these antibodies may contribute to the long-lasting effects of COVID-19 observed in some individuals, particularly if IgG-class antibodies would emerge in patients. This study assessed the prevalence of IgG autoantibodies against ACE2 in 1139 patients infected with SARS-CoV-2 and examined their relationship with severity, demographic characteristics, and status of vaccination against influenza. The overall prevalence of anti-ACE IgG antibodies in our cohort was 1.5%. Most of these individuals were men (76.5%) and underwent mild COVID-19, but some severe and asymptomatic cases were also observed. Patients with severe infection had twofold higher titers than mild and asymptomatic cases. Age, comorbidities, and influenza vaccination status were not related to antibody prevalence. The prevalence of IgG anti-SARS-CoV-2 antibodies (against nucleocapsid protein and S2 subunit, but not against receptor-binding domain) was higher in the subset with ACE2 autoantibodies. Further research is required to understand the potential spectrum and duration of effects of IgG autoantibodies against ACE2 in patients after SARS-CoV-2 infection, particularly concerning long COVID-19.

Indexed as

COVID-19Influenza, HumanAngiotensin-Converting Enzyme 2AutoantibodiesFemaleHumansImmunoglobulin GMalePeptidyl-Dipeptidase APost-Acute COVID-19 SyndromeSARS-CoV-2Angiotensin-Converting Enzyme 2AutoantibodiesImmunoglobulin GPeptidyl-Dipeptidase AautoantibodyautoimmunityCOVID-19renin-angiotensin system

Identifiers

PMID36324055
PMCPMC9877908
OpenAlexW4307987806

What OpenQuestion holds

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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.