ArticleImmunology and cell biology2017
Protein tyrosine phosphatase PTPN22 has dual roles in promoting pathogen versus homeostatic-driven CD8 T-cell responses.
Article in Immunology and cell biology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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.
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.
Who cites it
11 citing papers in PubMed, 17 citations in OpenAlex.
- An autoimmunity-associated allele ofProceedings of the National Academy of Sciences of the United States of America · 2026Article
- Type I interferon production in myeloid cells is regulated by factors independent of Ptpn22.ImmunoHorizons · 2025Article
- An Autoimmunity-associated allele ofbioRxiv : the preprint server for biology · 2025Article
- Autoimmunity-associated allele of tyrosine phosphatase gene PTPN22 enhances anti-viral immunity.PLoS pathogens · 2024Article
- Regulation of T Cell Signaling and Immune Responses by PTPN22.Molecular and cellular biology · 2024Review
- Targeting cathepsin C ameliorates murine acetaminophen-induced liver injury.Theranostics · 2024Article
- Regulation of autoimmune and anti-tumour T-cell responses by PTPN22.Immunology · 2018Review
- Abnormal B Cell Development in Systemic Lupus Erythematosus: What the Genetics Tell Us.Arthritis & rheumatology (Hoboken, N.J.) · 2018Review
- PTPN22 and islet-specific autoimmunity: What have the mouse models taught us?World journal of diabetes · 2017Review
- Fresh Ideas, Foundational Experiments (FIFE): Immunology and Diabetes 2016 FIFE Symposium.Frontiers in endocrinology · 2017Article
- Extrinsic Protein Tyrosine Phosphatase Non-Receptor 22 Signals Contribute to CD8 T Cell Exhaustion and Promote Persistence of Chronic Lymphocytic Choriomeningitis Virus Infection.Frontiers in immunology · 2017Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
PTPN22 (protein tyrosine phosphatase non receptor 22) encodes a tyrosine phosphatase that functions as a key regulator of immune homeostasis. In particular, PTPN22 inhibits T-cell receptor signaling and selectively promotes type I interferon responses in myeloid cells. To date, there is little information on the CD8 T-cell-intrinsic role of PTPN22 in response to a viral pathogen. We unexpectedly found that PTPN22-deficient virus-specific CD8 T cells failed to accumulate in wild-type hosts after lymphocytic choriomeningitis virus infection. Lack of PTPN22 expression altered CD8 T-cell activation and antiviral cytokine production, but did not significantly affect the composition of effector and memory cell precursors. Most significantly, in vivo, PTPN22-deficient CD8 T cells showed a profound defect in upregulating STAT-1 after lymphocytic choriomeningitis virus infection and considerably less phosphorylation of STAT-1 in response to IFN-α treatment in vitro compared with their wild-type counterparts. In stark contrast, following transfer into lymphopenic mice, CD8 T-cell expansion and central-like phenotype, was considerably increased in the absence of PTPN22. Collectively, our results suggest that PTPN22 has dual roles in T-cell clonal expansion and effector function; whereas it promotes antigen-driven responses during acute infection by positively regulating interferon signaling in T cells, PTPN22 inhibits homeostatic-driven proliferation.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.