Evidence map›Paper›PMID 41723636›Full record

ArticleImmunoHorizons2026

Longitudinal profiling of antigen receptor gene repertoire dynamics in kidney transplant recipients after multiple SARS-CoV-2 vaccinations.

Antonios Mingos, Nikolaos Pechlivanis, Georgios Karakatsoulis, Anastasia Anastasiadou, Glykeria Gkoliou, Nikolaos Vastarouchas, Alexandra Siorenta, Smaragdi Marinaki, Paraskevi Tsoutsoura, Myrto Papamentzelopoulou and 6 more

Abstract read
In one paragraph

Article in ImmunoHorizons, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0cells of the map it votes in
0citing papers in PubMed
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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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Antonios MingosInstitute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece.
Nikolaos PechlivanisInstitute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece.
Georgios KarakatsoulisInstitute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece.
Anastasia AnastasiadouInstitute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece.
Glykeria GkoliouInstitute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece.
Nikolaos VastarouchasInstitute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece.
Alexandra SiorentaImmunology Department and National Tissue Typing Center, General Hospital of Athens "G. Gennimatas", Athens, Greece.
Smaragdi MarinakiNephrology Department and Renal Transplantation Unit, Laiko General Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece.
Paraskevi TsoutsouraNephrology Department and Renal Transplantation Unit, Laiko General Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece.
Myrto PapamentzelopoulouMolecular Biology Unit, 1st Department of Obstetrics and Gynecology, National and Kapodistrian University of Athens, Athens, Greece.
Vassiliki PitirigaDepartment of Microbiology, Medical School, National and Kapodistrian University of Athens, Athens, Greece.
Mina PsichogiouFirst Department of Internal Medicine, Laiko General Hospital, National and Kapodistrian University of Athens, Athens, Greece.
Angelos HatzakisDepartment of Hygiene, Epidemiology and Medical Statistics, Medical School, National and Kapodistrian University of Athens, Athens, Greece.
Kostas StamatopoulosInstitute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece.
Elisavet VlachonikolaInstitute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece.ORCID 0000-0003-4609-9977
Anastasia ChatzidimitriouInstitute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece.

Funding

Greece versus Corona Action of the Hellenic Secretariat of Research and InnovationHellenic Foundation for Research and Innovation
6 · The paper itself

Abstract

Kidney transplant recipients (KTRs) exhibit impaired immune responses to vaccination against the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) virus, remaining vulnerable to severe coronavirus disease 2019 (COVID-19) even after multiple vaccine doses. We hypothesized that repeated SARS-CoV-2 vaccinations in KTRs might promote remodeling of the adaptive immune repertoire. In order to address this hypothesis and gain insight into adaptive immune dynamics in this population, we employed next-generation sequencing (NGS) to determine longitudinal alterations in immunoglobulin (IG) and T cell receptor (TR) gene repertoires following multiple mRNA vaccinations and functional experiments to assess lymphocyte signaling capacity. TR gene repertoire analysis revealed increased diversity and reduced clonality after booster immunizations, indicative of substantial repertoire renewal. Although the relative frequency of SARS-CoV-2-specific TR clonotypes remained stable over time, significant shifts in TRBV gene usage reflected dynamic reshaping of the TR clonal architecture. Parallel IG gene repertoire profiling demonstrated increased diversity and limited oligoclonal expansions after booster mRNA vaccination. These changes were accompanied by elevated levels of somatic hypermutation in IG clonotypes similar to published SARS-CoV-2-specific clonotypes, suggestive of more efficient humoral responses following repeated antigenic exposure. Phospho-specific flow cytometry analysis revealed initially diminished B cell receptor signaling, which was restored following multiple immunizations, consistent with reversal of B cell anergy status. Altogether, our findings support the notion that repeated SARS-CoV-2 vaccinations drive the remodeling of cellular and humoral immune landscapes in KTRs. These results underscore the importance of tailored vaccination strategies to optimize immune protection in immunocompromised individuals.

Indexed as

COVID-19COVID-19 VaccinesKidney TransplantationReceptors, Antigen, T-CellSARS-CoV-2Adaptive ImmunityB-LymphocytesFemaleHigh-Throughput Nucleotide SequencingHumansImmunization, SecondaryLongitudinal StudiesMaleMiddle AgedReceptors, Antigen, B-CellVaccinationCOVID-19 VaccinesReceptors, Antigen, B-CellReceptors, Antigen, T-CellAntibodiesB CellsT Cell ReceptorsT CellsVaccination

Identifiers

PMID41723636
PMCPMC12925320

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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.