Evidence map›Paper›PMID 15373909›Full record

ArticleClinical and experimental immunology2004

Peripheral blood T cell responses to keratin peptides that share sequences with streptococcal M proteins are largely restricted to skin-homing CD8(+) T cells.

A Johnston, J E Gudjonsson, H Sigmundsdottir, T J Love, H Valdimarsson

Open access · greenAbstract read
In one paragraph

Article in Clinical and experimental immunology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed
9.6field-weighted citation impact, top 2% 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

64 citing papers in PubMed, 153 citations in OpenAlex.

  1. [Interdisciplinary training program for adults with psoriaisis: six months follow-up].Der Hautarzt; Zeitschrift fur Dermatologie, Venerologie, und verwandte Gebiete · 2006
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  17. Skin Barrier Dysregulation in Psoriasis.International journal of molecular sciences · 2021
    Review
  18. Anti-Psoriatic Effects of Antimony Compounds In Vitro.Molecules (Basel, Switzerland) · 2021
    Article
  19. Review
  20. Review

4 more citing papers are in PubMed but not listed here.

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

5 authors at 2 institutions in 1 country.

A JohnstonDepartment of Immunology, Landspitali University Hospital, Reykjavik, Iceland. Andrewj@landspitali.is
J E Gudjonsson
H Sigmundsdottir
T J Love
H Valdimarsson
National University Hospital of Iceland · ISReykjavík University · IS

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The association of psoriasis with Streptococcus pyogenes throat infections suggests a potential antigenic target for the T cells that are known to infiltrate psoriatic skin. Streptococcal M protein share an extensive sequence homology with the human epidermal keratins. Keratin 17 (K17), while being mostly absent from uninvolved skin, is up-regulated in psoriatic lesions. Consequentially, M-protein-primed T cells may recognize up-regulated keratin epitopes via molecular mimicry. Using in vitro lymphocyte culture and cytokine flow cytometry we demonstrate that HLA-Cw*0602(+) psoriasis patients had significant CD8(+) T cell interferon (IFN)-gamma responses to peptides from the K17 and M6 protein selected on the basis of sequence homology and predicted HLA-Cw*0602 binding. These responses were about 10 times more frequent in the skin-homing cutaneous lymphocyte-associated antigen-expressing (CLA(+)) subset of CD8(+) T cells. CD4(+) T cells showed only borderline responses. CLA(+) CD8(+) T cells from Cw6(+) non-psoriatic individuals responded to some M6 peptides but rarely to K17 peptides. Cw6(-) psoriasis patients showed a response that was intermediate between Cw6(+) patients and controls. These findings indicate that psoriatic individuals have CD8(+) T cells that recognize keratin self-antigens and that epitopes shared by streptococcal M proteins and human keratins may be targets for the CD8(+) T cells that infiltrate psoriatic skin lesions.

Indexed as

Antigens, BacterialAntigens, Differentiation, T-LymphocyteAntigens, NeoplasmBacterial Outer Membrane ProteinsCarrier ProteinsCD4-Positive T-LymphocytesCD8-Positive T-LymphocytesFemaleHLA-C AntigensHumansInterferon-gammaKeratinsLeukocytes, MononuclearMaleMembrane GlycoproteinsMiddle AgedAntigens, BacterialAntigens, Differentiation, T-LymphocyteAntigens, NeoplasmBacterial Outer Membrane ProteinsCarrier ProteinsCTAGE1 protein, humanHLA-C*06:02 antigenHLA-C AntigensInterferon-gammaKeratinsMembrane GlycoproteinsPeptidesReceptors, Lymphocyte Homingstreptococcal M protein

Identifiers

PMID15373909
PMCPMC1809187
OpenAlexW2005576094

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.