Evidence map›Paper›PMID 19295614›Full record

ArticleThe Journal of investigative dermatology2009

Th17 cytokines stimulate CCL20 expression in keratinocytes in vitro and in vivo: implications for psoriasis pathogenesis.

Erin G Harper, Changsheng Guo, Heather Rizzo, Joseph V Lillis, Stephen E Kurtz, Iliyana Skorcheva, David Purdy, Erin Fitch, Mihail Iordanov, Andrew Blauvelt

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of investigative dermatology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 238 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
238citing papers in PubMed, 2 pooled it
9.9field-weighted citation impact, top 1% 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

238 citing papers in PubMed, 2 syntheses or guidelines pooled it, 499 citations in OpenAlex.

  1. Pooled it
  2. Anti-TNF agents for paediatric psoriasis.The Cochrane database of systematic reviews · 2015
    Pooled it
  3. Trial
  4. Trial
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  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Keratinocytes: pleiotropic orchestrators of cutaneous immunity and Inflammation - Emerging therapeutic paradigms in dermatological pathologies.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2026
    Review
  15. Article
  16. Review
  17. Article
  18. Article
  19. Review
  20. CD4Frontiers in immunology · 2026
    Article

178 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

10 authors at 1 institution in 1 country.

Erin G HarperDepartment of Dermatology, Oregon Health & Science University, Portland, Oregon 97239, USA.
Changsheng Guo
Heather Rizzo
Joseph V Lillis
Stephen E Kurtz
Iliyana Skorcheva
David Purdy
Erin Fitch
Mihail Iordanov
Andrew Blauvelt
Oregon Health & Science University · US

Funding

Signal transduction in cytoprotective responsesR01CA093718 · NCI · OREGON HEALTH & SCIENCE UNIVERSITY · PI IORDANOV, MIHAIL · 2002 to 2006
$1.3M
ROLE OF IL-23 IN PSORIASIS PATHOGENESISR21AR054495 · NIAMS · OREGON HEALTH & SCIENCE UNIVERSITY · PI BLAUVELT, ANDREW · 2007 to 2008
$331k
NCI NIH HHS CA 93718NCI NIH HHS R01 CA093718NIAMS NIH HHS 1 R21 AR054495-01A1NIAMS NIH HHS R21 AR054495
6 · The paper itself

Abstract

T helper (Th) 17 cells have recently been implicated in psoriasis pathogenesis, but mechanisms of how these cells traffic into inflamed skin are unknown. By immunostaining for interleukin (IL)-17A and IL-22, we show numerous cells present in psoriasis lesions that produce these cytokines. We next found that Th17 cytokines (IL-17A, IL-22, and tumor necrosis factor (TNF)-alpha) markedly increased the expression of CC chemokine ligand (CCL) 20, a CC chemokine receptor (CCR)6 ligand, in human keratinocyte monolayer and raft cultures in a dose- and time-dependent manner. Lastly, we showed in mice that subcutaneous injection with recombinant IL-17A, IL-22, or TNF-alpha led to the upregulation of both CCL20 and CCR6 expression in skin as well as cutaneous T-cell infiltration. Taken together, these data show that Th17 cytokines stimulate CCL20 production in vitro and in vivo, and thus provide a potential explanation of how CCR6-positive Th17 cells maintain their continual presence in psoriasis through a positive chemotactic feedback loop.

Indexed as

AnimalsCells, CulturedChemokine CCL20EpidermisHumansInterleukin-17Interleukin-22InterleukinsKeratinocytesMiceMice, Inbred BALB CPsoriasisReceptors, CCR6Tumor Necrosis Factor-alphaChemokine CCL20Interleukin-17Interleukin-22InterleukinsReceptors, CCR6Tumor Necrosis Factor-alpha

Identifiers

PMID19295614
PMCPMC2892172
OpenAlexW2047344004

What OpenQuestion holds

Textmetadata
LicenceTDM
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.