نتایج جستجو برای: foxp3 protein
تعداد نتایج: 1240954 فیلتر نتایج به سال:
Objective: To explore the expression of CD4+CD25+ regulatory T cell (Treg) and Foxp3 in peripheral blood of patients with chronic obstructive pulmonary disease (COPD) and its clinical significance by performing a casecontrol study. Methods: Eighty-two COPD patients treated in our hospital from Jan 2013 to Jun 2014 were enrolled as case group and 76 healthy individuals as control group. All the ...
مقدمه: آرتریت روماتویید به عنوان بیماری th1 غالب تعریف می شود. سلول های tregs گروه جدیدی از سلول های t هستند که سایر سلول های اجرایی سیستم ایمنی از جمله th1 و th2 را تنظیم می کنند. foxp3 عامل توسعه و همچنین حفظ فعالیت مهاری سلول های treg است. در این مطالعه فراوانی سلول های cd4 + foxp3 + treg و cd8 + foxp3 + treg را در مبتلایان به آرتریت روماتویید بررسی کردیم. روش ها: نمونه ی خون محیطی از 31 بیم...
Foxp3 plays an essential role in conferring suppressive functionality to CD4(+)/Foxp3(+) regulatory T cells (Tregs). Although studies showed that Foxp3 has to form cooperative complexes with NFAT to bind to target genes, it remains unclear whether NFAT is available in the nucleus of primary Tregs for Foxp3 access. It is generally believed that NFAT in resting cells resides in the cytoplasm, and...
Foxp3(+) regulatory T cells (Tregs) are crucial for preventing autoimmunity. We have demonstrated that depletion of Foxp3(+) Tregs results in the development of a scurfy-like disease, indicating that Foxp3(-) effector T cells are sufficient to induce autoimmunity. It has been postulated that nonfunctional Tregs carrying potentially self-reactive T cell receptors may contribute to scurfy (sf) pa...
BACKGROUND Phenotype and function of regulatory T cells (Treg) largely depend on the presence of the transcription factor FOXP3. In contrast to mice, human Treg cells express isoforms of this protein. Besides the full length version (FOXP3fl), an isoform lacking the exon 2 (FOXP3Delta2) is co-expressed in comparable amounts. Recently, a third splice variant has been described that in addition t...
Recent studies have demonstrated that thymus-derived naturally occurring CD4(+)Foxp3(+) regulatory T cells (Tregs) in human and mouse may be unstable and dysfunctional in the presence of proinflammatory cytokines. All-trans RA (atRA), the active derivative of vitamin A, has been shown to regulate Treg and T effector cell differentiation. We hypothesize atRA stabilizes human natural Tregs (nTreg...
Chemically modified mRNA is capable of inducing therapeutic levels of protein expression while circumventing the threat of genomic integration often associated with viral vectors. We utilized this novel therapeutic tool to express the regulatory T cell transcription factor, FOXP3, in a time- and site-specific fashion in murine lung, in order to prevent allergic asthma in vivo. We show that modi...
Prostaglandin E2 induces FOXP3 gene expression and T regulatory cell function in human CD4+ T cells.
Naturally occurring CD4+CD25+ regulatory T cells (T reg) are pivotal in suppressing immune responses and maintaining tolerance. The identification of molecules controlling T reg differentiation and function is important in understanding host immune responses in malignancy and autoimmunity. In this study we show that PGE2 enhances the in vitro inhibitory function of human purified CD4+CD25+ T re...
Celiac disease (CD) is a systemic immune-mediated disorder caused by the dietary gluten in individuals who are genetically susceptible to the disease. In fact, CD is a T cell-mediated immune disease in which gluten-derived peptides activate the lamina propria CD4+ Teff cells, and these T-cell subsets can cause the intestinal tissue damages. Also, there are additional subsets of CD4+ T cells wit...
Programmed cell death-1 (PD-1) plays an important role in peripheral T cell tolerance, but whether or not it affects the differentiation of helper T cell subsets remains elusive. Here we describe the importance of PD-1 in the control of T helper type 1 (Th1) cell activation and development of forkhead box protein 3 (FoxP3(+)) regulatory T cells (Tr(egs)). PD-1-deficient T cell-specific T-bet tr...
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