Evidence map›Paper›PMID 33950229›Full record

ArticleRheumatology (Oxford, England)2021

JAK1: Number one in the family; number one in inflammation?

Francesca Romana Spinelli, Robert A Colbert, Massimo Gadina

Open access · hybridAbstract read
In one paragraph

Article in Rheumatology (Oxford, England), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
3.8field-weighted citation impact, top 5% 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

35 citing papers in PubMed, 54 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Article
  4. Identification of Pyrrolo [2,3-Molecules (Basel, Switzerland) · 2026
    Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Review
  12. Review
  13. Review
  14. Article
  15. Review
  16. Article
  17. What can we learn from treatments of oral lichen planus?Frontiers in cellular and infection microbiology · 2024
    Review
  18. Review
  19. Combined Abrocitinib and Acitretin Therapy for Darier's Disease: A Case Report.Clinical, cosmetic and investigational dermatology · 2024
    Article
  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

3 authors at 3 institutions in 3 countries.

Francesca Romana SpinelliDipartimento di Scienze Cliniche Internistiche, Anestesiologiche e Cardiovascolari-Reumatologia, Sapienza Università di Roma, Rome, Italy.ORCID 0000-0003-1969-2097
Robert A ColbertPediatric Translational Research Branch.
Massimo GadinaTranslational Immunology Section, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, USA.ORCID 0000-0001-9084-6736
National Institutes of Health · USSapienza University of Rome · ITTranslational Research Institute · AU

Funding

Clinical Support Services for the NIAMS Intramural Research ProgramZIDAR041180 · NIAMS · NATIONAL INSTITUTE OF ARTHRITIS AND MUSCULOSKELETAL AND SKIN DISEASES · PI COLBERT, ROBERT · 2009 to 2025
$119.2M
Pathogenic Mechanisms in SpondyloarthritisZIAAR041184 · NIAMS · NATIONAL INSTITUTE OF ARTHRITIS AND MUSCULOSKELETAL AND SKIN DISEASES · PI COLBERT, ROBERT · 2009 to 2025
$47.6M
6 · The paper itself

Abstract

Several cytokines involved in inflammatory pathologies signal via the Janus kinase-signal transducer and activator of transcription pathway. Four JAKs are known: JAK1, JAK2, JAK3 and TYK2. The specific activation of JAKs and STATs determines the biological effects of each cytokine. JAK1 is involved in the signalling of 'γc' receptor cytokines (IL-2, IL-4, IL-7, IL-9, IL-15 and IL-21), pro-inflammatory cytokines including IL-6, as well as IFN. The critical position of JAK1 downstream of these cytokines suggests that JAK1-selective inhibitors are comparable to non-selective ones, without the unwanted consequences of JAK2- or JAK3-blockade. JAK inhibition has led to a better understanding of the biology of synovial inflammation and bone homeostasis. Moreover, the efficacy of non-selective JAK inhibitors and novel JAK1-selective drugs in RA supports a role for JAK1 in its pathogenesis. JAK1-selective drugs are also showing promise in axial spondyloarthritis, suggesting that they may target additional regulatory pathways that impact cytokines such as TNF and IL-17A, which do not use JAKs. Additionally, evidence now supports a JAK1 predominance in the signalling of IL-6 and oncostatin M, and indirectly, of TNF in synovial fibroblasts, macrophages and endothelial cells. Notably, bone homeostasis is also dependent on cytokines relying on JAK1 signalling to promote receptor activator of NF-κB ligand expression in osteoblasts and T cells, contributing to osteoclastogenesis. Here, the contribution of JAK1 over other kinases is unclear. While beneficial effects of JAK inhibitors on bone erosion are supported by preclinical and clinical data, effects on new bone formation in axial spondyloarthritis requires additional study.

Indexed as

Arthritis, RheumatoidBone ResorptionCytokinesHumansJanus Kinase 1Janus Kinase 2Janus Kinase 3Janus Kinase InhibitorsOsteogenesisSpondylarthropathiesSynovitisTYK2 KinaseCytokinesJanus Kinase 1Janus Kinase 2Janus Kinase 3Janus Kinase InhibitorsTYK2 KinasecytokinesinflammationJAK inhibitorsJAK kinasesrheumatoid arthritissignal transductionspondyloarthritisspondyloarthropathies

Identifiers

PMID33950229
PMCPMC8599761
OpenAlexW3158906763

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.