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Increased production of IL-4 by gut T-cell lines from patients with dermatitis herpetiformis compared to patients with isolated gluten-sensitive enteropathy.

Abstract：

:Dermatitis herpetiformis (DH) and isolated gluten-sensitive enteropathy (GSE) are gluten-sensitive diseases in which ingestion of dietary gluten results in the development of clinical disease. Patients with DH develop cutaneous IgA deposits and a severe skin disease, but rarely develop gastrointestinal symptoms. Patients with isolated GSE develop clinically significant gastrointestinal symptoms, but not skin disease or cutaneous IgA deposits. The aim of this study was to investigate the mechanism by which a mucosal immune response to the same dietary antigen can result in two distinct clinical phenotypes. T-cell lines were derived from activated T-cells in the small bowel mucosa of five patients with DH and 14 patients with isolated GSE and analyzed for T-cell markers and cytokine production in vitro. T-cell lines from DH and isolated GSE patients produced IFN-gamma after stimulation (mean: DH = 2,619 pg/ml; isolated GSE = 1,993 pg/ml; NS). T-cell lines from patients with DH, however, produced significantly more IL-4 than the T-cell lines from patients with isolated GSE (IL-4: DH = 2,010 pg/ml; isolated GSE = 235 pg/ml; P < 0.05). Analysis of intracytoplasmic cytokine production by the T-cell lines showed that T-cell lines from patients with DH were CD4+ predominant, with a greater proportion of CD4+/IL4+ cells than CD4+/IFN-gamma+ cells. In contrast, isolated GSE T-cell lines were predominantly CD8+, with an equal proportion of IL-4- and IFN-gamma-positive cells. These studies demonstrate that T cell lines from patients with DH produce significantly more IL-4 than T-cell lines from patients with isolated GSE, while producing similar amounts of IFN-gamma. This difference in cytokine pattern may play an important role in the different clinical manifestations of these two forms of gluten sensitivity.

journal_name

Dig Dis Sci

journal_title

Digestive diseases and sciences

authors

Hall RP 3rd,Smith AD,Streilein RD

doi

10.1023/a:1005512513007

subject

Has Abstract

pub_date

2000-10-01 00:00:00

pages

2036-43

issue

eissn

0163-2116

issn

1573-2568

journal_volume

pub_type

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Increased production of IL-4 by gut T-cell lines from patients with dermatitis herpetiformis compared to patients with isolated gluten-sensitive enteropathy.