Evidence map›Paper›PMID 33808998›Full record

ReviewCells2021

Thymic Aging May Be Associated with COVID-19 Pathophysiology in the Elderly.

Weikan Wang, Rachel Thomas, Jiyoung Oh, Dong-Ming Su

Open access · goldAbstract readReview
In one paragraph

Review in Cells, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
3.1field-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

31 citing papers in PubMed, 55 citations in OpenAlex.

  1. Trial
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Late-onset Systemic Lupus Erythematosus.Rheumatology international · 2025
    Review
  9. Article
  10. Article
  11. Review
  12. COVID-19 and cellular senescence.Nature reviews. Immunology · 2023
    Review
  13. Article
  14. Epidemiology and Clinical Presentation of COVID-19 in Older Adults.Infectious disease clinics of North America · 2023
    Review
  15. Article
  16. Article
  17. Article
  18. Review
  19. Review
  20. 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

4 authors at 2 institutions in 1 country.

Weikan WangCell Biology, Immunology, and Microbiology Graduate Program, Graduate School of Biomedical Sciences, University of North Texas Health Science Center, Fort Worth, TX 76107, USA.ORCID 0000-0002-5317-9863
Rachel ThomasCell Biology, Immunology, and Microbiology Graduate Program, Graduate School of Biomedical Sciences, University of North Texas Health Science Center, Fort Worth, TX 76107, USA.ORCID 0000-0002-0603-7088
Jiyoung OhDepartment of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
Dong-Ming SuDepartment of Microbiology, Immunology & Genetics, University of North Texas Health Center, 3500 Camp Bowie Blvd, Fort Worth, TX 76107, USA.ORCID 0000-0002-3326-4753
University of North Texas · USThe University of Texas Southwestern Medical Center · US

Funding

Training in the Neurobiology of Aging and Alzheimer's DiseaseT32AG020494 · NIA · UNIVERSITY OF NORTH TEXAS HLTH SCI CTR · PI ROBERT Clinton BARBER, NATHALIE SUMIEN · 2002 to 2026
$6.9M
Balance of Thymic Negative Selection vs. Treg Cell Generation in the ElderlyR01AI121147 · NIAID · UNIVERSITY OF NORTH TEXAS HLTH SCI CTR · PI SU, DONG-MING · 2016 to 2020
$1.7M
NIAID NIH HHS R01 AI121147NIH HHS R01AI121147NIH HHS T32 AG020494
6 · The paper itself

Abstract

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) caused the global pandemic of coronavirus disease 2019 (COVID-19) and particularly exhibits severe symptoms and mortality in elderly individuals. Mounting evidence shows that the characteristics of the age-related clinical severity of COVID-19 are attributed to insufficient antiviral immune function and excessive self-damaging immune reaction, involving T cell immunity and associated with pre-existing basal inflammation in the elderly. Age-related changes to T cell immunosenescence is characterized by not only restricted T cell receptor (TCR) repertoire diversity, accumulation of exhausted and/or senescent memory T cells, but also by increased self-reactive T cell- and innate immune cell-induced chronic inflammation, and accumulated and functionally enhanced polyclonal regulatory T (Treg) cells. Many of these changes can be traced back to age-related thymic involution/degeneration. How these changes contribute to differences in COVID-19 disease severity between young and aged patients is an urgent area of investigation. Therefore, we attempt to connect various clues in this field by reviewing and discussing recent research on the role of the thymus and T cells in COVID-19 immunity during aging (a synergistic effect of diminished responses to pathogens and enhanced responses to self) impacting age-related clinical severity of COVID-19. We also address potential combinational strategies to rejuvenate multiple aging-impacted immune system checkpoints by revival of aged thymic function, boosting peripheral T cell responses, and alleviating chronic, basal inflammation to improve the efficiency of anti-SARS-CoV-2 immunity and vaccination in the elderly.

Indexed as

AgedAged, 80 and overAgingAutoimmunityCellular SenescenceCOVID-19COVID-19 Drug TreatmentHumansInflammationSARS-CoV-2Thymus GlandT-Lymphocytesaged COVID-19 patientsaged thymusimmunopathologyrole of T cellsthymic involution

Identifiers

PMID33808998
PMCPMC8001029
OpenAlexW3137189153

What OpenQuestion holds

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LicenceCC BY
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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.