Evidence map›Paper›PMID 34933240›Full record

ArticleCytokine2022

Effect of SARS-CoV-2 seropositivity on antigen - specific cytokine and chemokine responses in latent tuberculosis.

Anuradha Rajamanickam, Nathella Pavan Kumar, Padmapriyadarsini Chandrasekaran, Arul Nancy, P K Bhavani, Nandhini Selvaraj, Kushiyasri Karunanithi, Saravanan Munisankar, R Srinivasan, Rachel Mariam Renji and 3 more

Open access · hybridAbstract readComparative Study
In one paragraph

Article in Cytokine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.7field-weighted citation impact, top 26% 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

9 citing papers in PubMed, 16 citations in OpenAlex.

  1. Article
  2. Article
  3. Observational
  4. Diverse interactions ofFrontiers in tuberculosis · 2024
    Review
  5. Article
  6. Review
  7. Immune interaction between SARS-CoV-2 andFrontiers in immunology · 2023
    Review
  8. Suppressive myeloid cells in SARS-CoV-2 andFrontiers in immunology · 2023
    Article
  9. Initial immune response after exposure toFrontiers in immunology · 2023
    Review
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

13 authors at 1 institution in 1 country.

Anuradha RajamanickamICMR-National Institute for Research in Tuberculosis-International Center for Excellence in Research, Chennai, India. Electronic address: anuradha@nirt.res.in.
Nathella Pavan KumarICMR-National Institute for Research in Tuberculosis, Chennai, India.
Padmapriyadarsini ChandrasekaranICMR-National Institute for Research in Tuberculosis, Chennai, India.
Arul NancyICMR-National Institute for Research in Tuberculosis-International Center for Excellence in Research, Chennai, India.
P K BhavaniICMR-National Institute for Research in Tuberculosis, Chennai, India.
Nandhini SelvarajICMR-National Institute for Research in Tuberculosis-International Center for Excellence in Research, Chennai, India.
Kushiyasri KarunanithiICMR-National Institute for Research in Tuberculosis, Chennai, India.
Saravanan MunisankarICMR-National Institute for Research in Tuberculosis-International Center for Excellence in Research, Chennai, India.
R SrinivasanICMR-National Institute for Research in Tuberculosis, Chennai, India.
Rachel Mariam RenjiICMR-National Institute for Research in Tuberculosis-International Center for Excellence in Research, Chennai, India.
Shanmuga Priya KumaravadiveluICMR-National Institute for Research in Tuberculosis, Chennai, India.
Vijayalakshmi VenkatramaniICMR-National Institute for Research in Tuberculosis-International Center for Excellence in Research, Chennai, India.
Subash BabuICMR-National Institute for Research in Tuberculosis-International Center for Excellence in Research, Chennai, India.
National Institute of Research in Tuberculosis · IN

Funding

India International Center for Excellence in ResearchZIAAI001065 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI NUTMAN, THOMAS · 2009 to 2025
$19.0M
6 · The paper itself

Abstract

SARS-CoV-2 and latent Mycobacterium tuberculosis infection are both highly co-prevalent in many parts of the globe. Whether exposure to SARS-CoV-2 influences the antigen specific immune responses in latent tuberculosis has not been investigated. We examined the baseline, mycobacterial antigen and mitogen induced cytokine and chemokine responses in latent tuberculosis (LTBI) individuals with or without SARS-CoV-2 seropositivity, LTBI negative individuals with SARS-CoV-2 seropositivity and healthy control (both LTBI and SARS-CoV-2 negative) individuals. Our results demonstrated that LTBI individuals with SARS-CoV-2 seropositivity (LTBI+/IgG +) were associated with increased levels of unstimulated and TB-antigen stimulated IFNγ, IL-2, TNFα, IL-17, IL-1β, IL-6, IL-12, IL-4, CXCL1, CXCL9 and CXCL10 when compared to those without seropositivity (LTBI+/IgG-). In contrast, LTBI+/IgG+ individuals were associated with decreased levels of IL-5 and IL-10. No significant difference in the levels of cytokines/chemokines was observed upon mitogen stimulation between the groups. SARS-CoV-2 seropositivity was associated with enhanced unstimulated and TB-antigen stimulated but not mitogen stimulated production of cytokines and chemokines in LTBI+ compared to LTBI negative individuals. Finally, most of these significant differences were not observed when LTBI negative individuals with SARS-CoV-2 seropositivity and controls were examined. Our data clearly demonstrate that both baseline and TB - antigen induced cytokine responses are augmented in the presence of SARS-CoV-2 seropositivity, suggesting an augmenting effect of prior SARS-CoV-2 infection on the immune responses of LTBI individuals.

Indexed as

AgedAged, 80 and overAntibodies, ViralAntigens, BacterialChemokinesCOVID-19CytokinesFemaleHumansImmunocompromised HostImmunoglobulin GInflammationLatent TuberculosisLymphocyte ActivationMaleMiddle AgedAntibodies, ViralAntigens, BacterialChemokinesCytokinesImmunoglobulin GPhytohemagglutininsAntigen specific responsesChemokinesCytokinesLTBISARS-CoV-2 seropositivity

Identifiers

PMID34933240
PMCPMC8668379
OpenAlexW4200624896

What OpenQuestion holds

Textmetadata
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.