کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
3349532 1216356 2016 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
In vitro evaluation of γδ T cells regulatory function in Behçet’s disease patients and healthy controls
موضوعات مرتبط
علوم زیستی و بیوفناوری ایمنی شناسی و میکروب شناسی ایمونولوژی
پیش نمایش صفحه اول مقاله
In vitro evaluation of γδ T cells regulatory function in Behçet’s disease patients and healthy controls
چکیده انگلیسی

CD8-positive γδ T lymphocytes (GDCD8+) are specifically increased in peripheral blood of Behçet’s disease (BD) patients. GDCD8+ have shown a T regulatory (Treg) function in autoimmune experimental models, human tumor infiltrates and intestinal intraepithelial lymphocytes from celiac patients. The aim of this study was to evaluate the Treg function of GDCD8+ and GDCD8−, freshly isolated from peripheral blood, in comparison to CD4+CD25high naturally occurring Treg cells (nTreg) in BD and healthy controls (HC).We tested their suppressive activity on CD4+CD25− T effector cells (Teff) proliferation by a CFSE dilution protocol, after suboptimal activation with anti-CD3, in the absence or presence of IL-2. Furthermore, secreted cytokines and suppressive latency associated peptide (LAP)-TGFβ surface upregulation were determined after GD activation.We found that Vδ1 chains contribution to GDCD8+ was higher in BD than in HC, but neither GDCD8+ nor GDCD8−; (i) suppressed Teff proliferation, (ii) expressed LAP-TGFβ (iii) nor secreted IL-10, in either group. Moreover, GD presented a proinflammatory cytokine profile, mainly producing IFNγ and TNFα, in contrast to nTregs.In conclusion, peripheral GD could contribute more to the dysregulation of TH1 type of cytokines than to exerting a Treg function in BD.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Human Immunology - Volume 77, Issue 1, January 2016, Pages 20–28
نویسندگان
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