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| The repertoire of T cell antigen receptor beta-chain variable regions associated with psoriasis vulgaris |
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| Author(s): Moss P, Charmley P, Mulvihill E, Ziegler S, Raugi GJ, Kern D, Piepkorn M, Gelinas R |
| Source: JOURNAL OF INVESTIGATIVE DERMATOLOGY Volume: 109 Issue: 1 Pages: 14-19 Published: JUL 1997 |
| Times Cited: 23 References: 34 |
| Abstract: We investigated whether the pattern of T-cell receptors expressed by T cells in inflamed psoriatic skin differed substantially from the pattern seen in T cells from the peripheral blood. A bias or restriction in the repertoire of T-cell receptors found in the lesional skin of different patients might imply that specific subsets of T cells were causally associated with initiating or maintaining the lesions, By using a polymerase chain reaction-based assay of T-cell receptor beta-chain variable region mRNA, we found that the patterns of beta-chain mRNAs displayed in 14 samples of lesional skin or six samples of noninvolved skin were not significantly less diverse than the patterns found in matched peripheral blood samples. There was no evidence that the active lesions of multiple patients showed overexpression of T cells expressing one or a few T-cell receptor forms. The pattern of T-cell receptors displayed in clinically normal skin from normal control individuals showed about the same diversity as normal blood. While these results may not exclude either classical antigen or superantigen-based T-cell activation mechanisms in active plaques, the absence of a simple pattern of V beta usage in different patients suggests than other aspects of T-cell biology including trafficking, proliferation, co-stimulation, or responses to cytokines must also be considered. |
| Document Type: Article |
| Language: English |
Addresses:
1. DARWIN MOL CORP, DEPT MOL BIOL & IMMUNOL, BOTHELL, WA 98021 USA
2. DARWIN MOL CORP, DEPT GEN, BOTHELL, WA 98021 USA
3. VA PUGET SOUND HLTH CARE SYST, MED SERV, DERMATOL SECT, SEATTLE, WA USA
4. UNIV WASHINGTON, SCH MED, DEPT MED, DIV DERMATOL, SEATTLE, WA 98195 USA |
| Publisher: BLACKWELL SCIENCE INC, 350 MAIN ST, MALDEN, MA 02148 |
| Subject Category: Dermatology |
| IDS Number: XF815 |
| ISSN: 0022-202X |
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