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ID 17694
file
creator
Ogura, Yoshio
Imamura, Yuji
Takesue, Yoshio
Yokoyama, Takashi
subject
Crohn's disease
Cytokine
CD45RO
Helper T cells
Peripheral blood
NDC
Medical sciences
abstract
Recently, the alteration of peripheral T cells has become a focus of attention in research on Crohn's disease (CD). To examine the characteristics of peripheral T cells in CD patients, we analyzed the expression of a memory T cell marker (CD45RO^<Bright>CD3+) and the cytokine production by peripheral helper and cytotoxic T cells in patients with CD. With the use of monensin to prevent the secretion of cytokines under stimulation, we measured the count of intracellular cytokine-positive cells for production of interferon (IFN)-γ, tumor necrosis factor (TNF)-α, interleukin (IL)-2, IL-4, IL-6, IL-10, and granulocyte-macrophage colony stimulating factor (GM-CSF) in the peripheral T cell population using flow-cytometry. The counts of lymphocytes, T cells, and helper T cells in patients with CD were significantly lower than in normal volunteers. Although no difference in the counts of lymphocytes, total T cells, helper and cytotoxic T cells was observed, the counts of intracellular cytokine producing helper T cells in IFN-γ, TNF-α or GM-CSF were significantly higher in active cases than in quiescent cases. These results suggest that stable CD patients are immunosuppressive, and activation of some kinds of T-cells, especially Thl-associated cytokine producing T-cells, correlate with disease progression. Thl-associated cytokine analysis of peripheral T cells may be one of the useful markers to evaluate the activeness of Crohn's disease.
journal title
Hiroshima Journal of Medical Sciences
volume
Volume 54
issue
Issue 1
start page
1
end page
8
date of issued
2005-03
publisher
Hiroshima University Medical Press
国立情報学研究所
issn
0018-2052
ncid
language
eng
nii type
Departmental Bulletin Paper
HU type
Departmental Bulletin Papers
DCMI type
text
format
application/pdf
text version
publisher
department
Graduate School of Biomedical Science
Natural Science Center for Basic Research and Development
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