نتایج جستجو برای: transcription factor foxp3

تعداد نتایج: 986123  

Ali Khorsand Vakilzadeh Ali Taghipour, Jalil Tavakkol Afshari Mojgan Mohammadi reza Soleimani, Seyed Ahmad Saghebi,

Objective: In Persian medicine (PM), wet-cupping therapy (WCT) is the most utilized approach. WCT is mostly done between the shoulders, which is referred to as “hejamt-e-aam” in the Persian language. CD4+T cells also refer to T helper lymphocytes play a critical role in the immune system. Naïve CD4+ T cells differentiate into at least four subsets, T helper 1 (Th1), T helper 2 (Th2), T helper 1...

2010
Sonja Schallenberg Pei-Yun Tsai Julia Riewaldt Karsten Kretschmer

CD4(+)CD25(+) regulatory T cells (T reg cells) expressing the transcription factor Foxp3 can be induced from peripheral T cell receptor (TCR) transgenic CD4(+)CD25(-)Foxp3(-) T cells stimulated with noninflammatory dendritic cells presenting low amounts of agonist cognate antigen. However, limited evidence exists for extra-thymic T reg cell generation from non-TCR transgenic T cells in unmanipu...

Journal: :a Egyptian journal of pediatric allergy and immunology 2021

Background: Cytokine storm has been observed in some patients with SARS-CoV-2 due to excessive pro-inflammatory response. Foxp3(+) regulatory T cells (Tregs) are a distinct population of CD4(+) lymphocytes identified by their expression transcription factor forkhead homeobox protein-3 (Foxp3). These down-regulate immune responses inflammatory and autoimmune diseases. Objective: This pilot study...

2015
Evita Bothur Hartmann Raifer Claudia Haftmann Anna-Barbara Stittrich Anne Brüstle Dirk Brenner Nadine Bollig Maria Bieringer Chol-Ho Kang Katharina Reinhard Bärbel Camara Magdalena Huber Alexander Visekruna Ulrich Steinhoff Antje Repenning Uta-Maria Bauer Veronika Sexl Andreas Radbruch Tim Sparwasser Mir-Farzin Mashreghi Tak Wah Mak Michael Lohoff

Regulatory T-cells induced via IL-2 and TGFβ in vitro (iTreg) suppress immune cells and are potential therapeutics during autoimmunity. However, several reports described their re-differentiation into pathogenic cells in vivo and loss of their key functional transcription factor (TF) FOXP3 after T-cell antigen receptor (TCR)-signalling in vitro. Here, we show that TCR-activation antagonizes two...

Journal: :PLoS Pathogens 2006
Christian Grant Unsong Oh Kazunori Fugo Norihiro Takenouchi Caitlin Griffith Karen Yao Timothy E Newhook Lee Ratner Steven Jacobson

Forkhead box (Fox)/winged-helix transcription factors regulate multiple aspects of immune responsiveness and Foxp3 is recognized as an essential functional marker of regulatory T cells. Herein we describe downstream signaling pathways targeted by Foxp3 that may negatively impact retroviral pathogenesis. Overexpression of Foxp3 in HEK 293T and purified CD4+ T cells resulted in a dose-dependent a...

Journal: :Anticancer research 2014
Takeshi Hanagiri Misako Fukumoto Yukiko Koyanagi Yukari Furutani Fumihiro Tanaka

BACKGROUND Regulatory T-cells (Tregs) have a pivotal role not only in abrogating autoimmune disease, but also in tumor immune escape. The purpose of the present study was to evaluate the clinical significance of the relative expression of forkhead/winged helix transcription factor (FOXP3) and micrometastasis in the regional lymph nodes (RLNs) of patients with stage I non-small cell lung cancer ...

Journal: :The Turkish journal of gastroenterology : the official journal of Turkish Society of Gastroenterology 2011
Yu Yongsheng Li Xiaoliang Tang Zhenghao Zang Guoqing

To determine the effect of regulatory T cells on the ratio of Th1/Th2 differentiation in peripheral blood mononuclear cells of chronic hepatitis B patients, FoxP3, the essential transcription factor for Tcells differentiation and function, was knocked down by FoxP3 siRNA, which was affirmed by real-time polymerase chain reaction for decreased expression of FoxP3. Then, at different time points,...

Journal: :Anticancer research 2016
Łukasz Szylberg Dominika Karbownik Andrzej Marszałek

FOXP3 transcription factor can be observed as the main component of the immune system expressed in regulatory T (Treg) cells that regulate hemostasis and self-tolerance. Moreover, the altered expression of FOXP3 was found in autoimmune diseases, benign tumors and carcinomas. Latest reports indicate that the FOXP3 gene mutation can contribute to carcinogenesis, which can be associated with immun...

2013
Lewis Zhichang Shi Hongbo Chi

Regulatory T cells (T reg), defined by the expression of the transcription factor Foxp3, are crucial for immunological self-tolerance and homeostasis. 1 T reg cells are mainly developed in the thymus as natural T reg cells (nT reg), which can be best depicted by a 2-step model. The initial signals from the high-affinity T-cell receptor (TCR) and CD28 co-stimulation lead to the generation of a p...

Journal: :PLoS ONE 2008
Zoran Popmihajlov Kendall A. Smith

As interleukin-2 (IL2) is central to the clonal expansion of antigen-selected T cells, we investigated the relationship between IL2 and the negative regulatory transcription factor FOXP3. We found IL2 to be responsible for T cell antigen receptor (TCR)-activated FOXP3 expression by both CD4+ and CD8+ human T cells, and as anticipated, FOXP3 expression restricted TCR-stimulated IL2 expression. H...

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