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Link to original content: https://pubmed.ncbi.nlm.nih.gov/15550147/
Homing receptor and chemokine receptor on intraepidermal T cells in psoriasis vulgaris - PubMed Skip to main page content
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. 2004 Nov;29(6):658-63.
doi: 10.1111/j.1365-2230.2004.01638.x.

Homing receptor and chemokine receptor on intraepidermal T cells in psoriasis vulgaris

Y Teraki  1 , A Miyake, R Takebayashi, T Shiohara
Affiliations

Homing receptor and chemokine receptor on intraepidermal T cells in psoriasis vulgaris

Y Teraki et al. Clin Exp Dermatol. 2004 Nov.

Abstract

Intraepidermal T lymphocytes found in psoriatic skin lesions are involved in the development and maintenance of lesional pathology. It has become clear that differential expression of homing and chemokine receptors determines the specific migration of T cells to distinct tissues and microenvironments, including psoriasis lesions. The aim of the present study was to clarify expression of homing (CLA, VLA-4, and LFA-1) and chemokine (CCR4, CCR6, CCR7, and CXCR3) receptors on intraepidermal T cells in psoriatic lesions using flow cytometry. The vast majority of intraepidermal T cells in psoriatic lesions expressed CLA and LFA-1, whereas 58% of CD4+ and 85% of CD8+ T cells expressed VLA-4. The majority of CD4+ T cells and about half of the CD8+ T cells expressed CCR4 and CCR6, whereas less than one-third of CD4+ and CD8+ T cells expressed CXCR3 or CCR7. In patients with psoriasis the percentages of T cells expressing CLA, CCR4, and CCR6 were much higher in the epidermis of psoriatic plaques than in the peripheral blood. Thus, CLA, CCR4, and CCR6 may play a more important role in the migration of T cells to psoriatic epidermis.

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