Evidence map›Paper›PMID 36969257›Full record

ArticleFrontiers in immunology2023

Differential regulatory T cell signature after recovery from mild COVID-19.

Pedro Henrique de Sousa Palmeira, Rephany Fonseca Peixoto, Bárbara Guimarães Csordas, Isac Almeida de Medeiros, Fátima de Lourdes Assunção Araújo de Azevedo, Robson Cavalcante Veras, Daniele Idalino Janebro, Ian P G Amaral, Tatjana Souza Lima Keesen

Open access · goldFull text read
In one paragraph

Article in Frontiers in immunology, 2023. 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
1.9field-weighted citation impact, top 15% 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

6 citing papers in PubMed, 10 citations in OpenAlex.

  1. Article
  2. Review
  3. T Regulatory Mechanisms in Airway and Interstitial Lung Disease.Seminars in respiratory and critical care medicine · 2025
    Review
  4. CD39Frontiers in oncology · 2025
    Review
  5. Article
  6. T Regulatory Cell Subsets Do Not Restore for One Year After Acute COVID-19.International journal of molecular sciences · 2024
    Article
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

9 authors at 1 institution in 1 country.

Pedro Henrique de Sousa PalmeiraPostgraduate program in Physiology Science, Immunology Laboratory of Infectious Diseases, Department of Cellular and Molecular Biology, Federal University of Paraiba, João Pessoa, Paraíba, Brazil.
Rephany Fonseca PeixotoPostgraduate program in Physiology Science, Immunology Laboratory of Infectious Diseases, Department of Cellular and Molecular Biology, Federal University of Paraiba, João Pessoa, Paraíba, Brazil.
Bárbara Guimarães CsordasPostgraduate program in Natural and Synthetic Bioactive Products, Immunology Laboratory of Infectious Diseases, Federal University of Paraiba, João Pessoa, Paraíba, Brazil.
Isac Almeida de MedeirosResearch Institute for Drugs and Medicines, Federal University of Paraiba, João Pessoa, Paraíba, Brazil.
Fátima de Lourdes Assunção Araújo de AzevedoResearch Institute for Drugs and Medicines, Federal University of Paraiba, João Pessoa, Paraíba, Brazil.
Robson Cavalcante VerasResearch Institute for Drugs and Medicines, Federal University of Paraiba, João Pessoa, Paraíba, Brazil.
Daniele Idalino JanebroResearch Institute for Drugs and Medicines, Federal University of Paraiba, João Pessoa, Paraíba, Brazil.
Ian P G AmaralBiotechnology Graduation Program, Immunology Laboratory of Infectious Diseases, Federal University of Paraiba, João Pessoa, Paraíba, Brazil.
Tatjana Souza Lima KeesenImmunology Laboratory of Infectious Diseases, Department of Cellular and Molecular Biology, Federal University of Paraiba, João Pessoa, Paraíba, Brazil.
Universidade Federal da Paraíba · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is characterized by a range of symptoms in which host immune response have been associated with disease progression. However, the putative role of regulatory T cells (Tregs) in determining COVID-19 outcomes has not been thoroughly investigated. Here, we compared peripheral Tregs between volunteers not previously infected with SARS-CoV-2 (healthy control [HC]) and volunteers who recovered from mild (Mild Recovered) and severe (Severe Recovered) COVID-19. Peripheral blood mononuclear cells (PBMC) were stimulated with SARS-CoV-2 synthetic peptides (Pool Spike CoV-2 and Pool CoV-2) or staphylococcal enterotoxin B (SEB). Results of a multicolor flow cytometric assay showed higher Treg frequency and expression of IL-10, IL-17, perforin, granzyme B, PD-1, and CD39/CD73 co-expression in Treg among the PBMC from the Mild Recovered group than in the Severe Recovered or HC groups for certain SARS-CoV-2 related stimulus. Moreover, Mild Recovered unstimulated samples presented a higher Tregs frequency and expression of IL-10 and granzyme B than did that of HC. Compared with Pool CoV-2 stimuli, Pool Spike CoV-2 reduced IL-10 expression and improved PD-1 expression in Tregs from volunteers in the Mild Recovered group. Interestingly, Pool Spike CoV-2 elicited a decrease in Treg IL-17

Indexed as

COVID-19T-Lymphocytes, RegulatoryGranzymesHumansInterleukin-10Interleukin-17Leukocytes, MononuclearPerforinProgrammed Cell Death 1 ReceptorSARS-CoV-2GranzymesInterleukin-10Interleukin-17PerforinProgrammed Cell Death 1 Receptorimmune responseimmunomodulationmild symptomsrecovered COVID-19regulatory T cellsSARS-CoV-2

Identifiers

PMID36969257
PMCPMC10030602
OpenAlexW4323567215

What OpenQuestion holds

Textfull text, public
LicenceCC BY
reference markers read13
measurements read58
Read underepoch 390

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.