Evidence map›Paper›PMID 34841225›Full record

ArticleiScience2021

The role of protease-activated receptor 1 signaling in CD8 T cell effector functions.

Hui Chen, Mindy Smith, Jasmin Herz, Tong Li, Rebecca Hasley, Cecile Le Saout, Ziang Zhu, Jie Cheng, Andres Gronda, José A Martina and 4 more

Open access · goldAbstract read
In one paragraph

Article in iScience, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.8field-weighted citation impact, top 14% 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

12 citing papers in PubMed, 20 citations in OpenAlex.

  1. Review
  2. Article
  3. Proteases in intestinal health and disease.Nature reviews. Gastroenterology & hepatology · 2026
    Review
  4. Review
  5. Article
  6. Article
  7. Article
  8. IL-27 effects on HIVFrontiers in virology (Lausanne, Switzerland) · 2025
    Article
  9. Article
  10. Cytotoxic CD8Cells · 2022
    Article
  11. Article
  12. Hemostasis and tumor immunity.Research and practice in thrombosis and haemostasis · 2022
    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

14 authors at 2 institutions in 1 country.

Hui ChenDepartment of Microbiology and Immunology, Georgetown University School of Medicine, Washington, DC, USA.
Mindy SmithLaboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA.
Jasmin HerzViral Immunology and Intravital Imaging Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA.
Tong LiDepartment of Microbiology and Immunology, Georgetown University School of Medicine, Washington, DC, USA.
Rebecca HasleyLaboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA.
Cecile Le SaoutLaboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA.
Ziang ZhuDepartment of Microbiology and Immunology, Georgetown University School of Medicine, Washington, DC, USA.
Jie ChengDepartment of Microbiology and Immunology, Georgetown University School of Medicine, Washington, DC, USA.
Andres GrondaDepartment of Human Science, Georgetown University, Washington, DC, USA.
José A MartinaCell and Developmental Biology Center, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD, USA.
Pablo M IrustaDepartment of Human Science, Georgetown University, Washington, DC, USA.
Tatiana KarpovaLaboratory of Receptor Biology and Gene Expression, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA.
Dorian B McGavernViral Immunology and Intravital Imaging Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA.
Marta CatalfamoDepartment of Microbiology and Immunology, Georgetown University School of Medicine, Washington, DC, USA.
National Institutes of Health · USGeorgetown University · US

Funding

The impact of HIV driven T cell immune activation in angiogenic CD8 T cell function: the role of PAR1 signalingR01AI145549 · NIAID · GEORGETOWN UNIVERSITY · PI CATALFAMO, MARTA L. · 2019 to 2024
$1.9M
CCR NIH HHS HHSN261200800001CNCI NIH HHS HHSN261200800001ENIAID NIH HHS R01 AI145549
6 · The paper itself

Abstract

CD8 T cells are essential for adaptive immunity against viral infections. Protease activated receptor 1 (PAR1) is expressed by CD8 T cells; however, its role in T cell effector function is not well defined. Here we show that in human CD8 T cells, PAR1 stimulation accelerates calcium mobilization. Furthermore, PAR1 is involved in cytotoxic T cell function by facilitating granule trafficking via actin polymerization and repositioning of the microtubule organizing center (MTOC) toward the immunological synapse.

Indexed as

Immune responseImmunologyMolecular biology

Identifiers

PMID34841225
PMCPMC8605340
OpenAlexW3208161315

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.