Evidence map›Paper›PMID 41161816›Full record

ArticleVox sanguinis2026

Autoantibodies in COVID-19 convalescent plasma donors.

Katerina Jazbec Gradišar, Klemen Žiberna, Polonca Mali, Ivica Marić, Primož Rožman, Elvira Maličev

Abstract read
In one paragraph

Article in Vox sanguinis, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

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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

2 citing papers in PubMed.

  1. Article
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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

6 authors.

Katerina Jazbec GradišarBlood Transfusion Centre of Slovenia, Ljubljana, Slovenia.ORCID https://orcid.org/0000-0002-7859-289X
Klemen ŽibernaBlood Transfusion Centre of Slovenia, Ljubljana, Slovenia.
Polonca MaliBlood Transfusion Centre of Slovenia, Ljubljana, Slovenia.
Ivica MarićBlood Transfusion Centre of Slovenia, Ljubljana, Slovenia.
Primož RožmanBlood Transfusion Centre of Slovenia, Ljubljana, Slovenia.
Elvira MaličevBlood Transfusion Centre of Slovenia, Ljubljana, Slovenia.ORCID https://orcid.org/0000-0001-8312-1331

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectivesAlthough COVID-19 convalescent plasma (CCP) has been successfully used to treat several viral infections, its effectiveness in neutralizing severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and its broader immunological safety remain debated. Since viral infections can trigger autoimmunity, particularly through molecular mimicry and immune dysregulation, there is growing interest in understanding whether CCP contains autoantibodies that could affect recipient safety. MATERIALS AND

methodsIn this study, we evaluated the presence of 20 different autoantibodies, along with anti-SARS-CoV-2 antibodies, in plasma samples from CCP donors. Samples were collected at three time intervals following COVID-19 symptom onset: 0-60, 60-120 and 120-180 days. Results were compared with those from healthy control plasma donors.

resultsSeveral autoantibodies- anti-Smith (anti-SM), anti-Sjögren syndrome antigen A, 60-kDa isoform (anti-SSA/Ro60), anti-proliferating cell nuclear antigen (anti-PCNA), anti-Ribosomal P and anti-ribonucleoprotein/Smith antigen complex (anti-RNP/SM)-showed modestly elevated levels in CCP samples collected within 0-60 days post symptom onset. In the 60-120-day period, autoantibody levels declined and approached levels observed in the control group. In the 120-180-day period, most autoantibody levels remained comparable to control levels. Our analysis showed no significant correlations between levels of neutralizing SARS-CoV-2 antibodies and autoantibody concentrations nor significant differences in autoantibody profiles between donors with high and low neutralizing antibody (NAb) titres.

conclusionOur findings suggest that SARS-CoV-2 infection may transiently elevate certain autoantibodies in CCP donors. However, most autoantibody levels decline over time and the overall profiles do not indicate sustained autoreactivity. These results support the immunological safety of CCP, particularly when collected between 60 and 120 days post infection, and highlight the importance of timing in optimizing both efficacy and safety in plasma donation strategies.

Indexed as

Antibodies, ViralAutoantibodiesBlood DonorsCOVID-19SARS-CoV-2AdultAgedCOVID-19 SerotherapyFemaleHumansImmunization, PassiveMaleMiddle AgedAntibodies, ViralAutoantibodiesanti‐SARS‐CoV‐2 antibodiesautoantibodiesCOVID‐19 convalescent plasmatransfusion

Identifiers

PMID41161816
PMCPMC12803771

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Registered trials

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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.