کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10941005 1095546 2013 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Distorted expression of dopamine receptor genes in systemic lupus erythematosus
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی بیولوژی سلول
پیش نمایش صفحه اول مقاله
Distorted expression of dopamine receptor genes in systemic lupus erythematosus
چکیده انگلیسی
Several observations suggest that alterations in the neurotransmitter dopamine and/or its receptors could be associated with the pathophysiology of lupus. We therefore assessed expression of the five dopamine receptor genes in a cohort of patients. We found that all receptors are expressed in lupus peripheral blood cells. We also discovered that dopamine receptor 2 gene (DR2) was underexpressed, and that DR4 was overexpressed in lupus patients, as compared to controls. Cell sorting of peripheral T- and B-lymphocytes disclosed that the altered DR2 and DR4 expressions were borne by T-cells. These distorted expressions of DR2 and DR4 could influence immune functions in lupus through several mechanisms. Since DR2 can be effective in regulating the activation and differentiation of naive CD4+ cells by promoting polarization toward regulatory T-cells, the underexpression of DR2 we have observed may account, at least in part, for the reduction of regulatory T-cell function and/or numbers in lupus. In addition to providing novel insight into disease pathogenesis, our findings may have therapeutic implications. Because DR4 can be effective in triggering T-cell quiescence, its overexpression on lupus T cells suggests that inducing quiescence using DR4-specific agonists may represent a useful strategy in the treatment of lupus.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Immunobiology - Volume 218, Issue 7, July 2013, Pages 979-983
نویسندگان
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