نتایج جستجو برای: rorγt

تعداد نتایج: 603  

2016
Milena J. Tosiek Laurence Fiette Sary El Daker Gérard Eberl Antonio A. Freitas

The ability of CD4+ T cells to change their phenotype and to specialize into different functional subsets may enhance the risk of autoimmune diseases. Here we investigate how a pleiotropic cytokine interleukin (IL)-15 may modify the functional commitment of CD4+ T cells expressing the lineage-associated transcription factors: forkhead box P3 (Foxp3; Treg) and RORγt (Th17) in the context of infl...

2012
Elina A. Kiss Andreas Diefenbach

Mucosal retinoic receptor-related orphan receptor (ROR)γt-expressing innate lymphoid cells (ILC) play an important role in the defense against intestinal pathogens and in promoting epithelial homeostasis and adaptation, thereby effectively protecting the vertebrate host against intestinal inflammatory disorders. The functional activity of RORγt(+) ILC is under the control of environmental cues....

2012
Lequn Li Nikolaos Patsoukis Victoria Petkova Vassiliki A. Boussiotis

CD4(+)Foxp3(+) T regulatory cells (Tregs) display phenotypic and functional plasticity that is regulated by cytokines and other immune cells. Previously, we determined that during co-culture with CD4(+)CD25(-) T cells and antigen presenting cells, Tregs produced IL-17. Here, we investigated the mechanisms underlying the differentiation of IL-17-producing Treg (Tr17) cells and their molecular an...

2017
Ying Lu Xianyu Zhang Nicolas Bouladoux Saransh Neel Kaul Kangxin Jin Derek Sant’Angelo Yasmine Belkaid Damian Kovalovsky

Innate lymphoid cells (ILCs) play a central role conferring protection at the mucosal frontier. In this study, we have identified a requirement of the transcription factor Zbtb1 for the development of RORγt+ ILCs (ILC3s). Zbtb1-deficient mice lacked NKp46+ ILC3 cells in the lamina propria of the small and large intestine. This requirement of Zbtb1 was cell intrinsic, as NKp46+ ILC3s were not ge...

2014
Shuhei Kobayashi Akira Hara Takayuki Isagawa Ichiro Manabe Kiyoshi Takeda Takashi MaruYama

The nuclear IκB family protein IκBNS is expressed in T cells and plays an important role in Interferon (IFN)-γ and Interleukin (IL)-2 production. IκB-ζ, the most similar homolog of IκBNS, plays an important role in the generation of T helper (Th)17 cells in cooperation with RORγt, a master regulator of Th17 cells. Thus, IκB-ζ deficient mice are resistant to Th17-dependent experimental autoimmun...

Journal: :Blood 2011
Yu Yu Dapeng Wang Chen Liu Kane Kaosaard Kenrick Semple Claudio Anasetti Xue-Zhong Yu

Allogeneic hematopoietic cell transplantation (HCT) is effective therapy for hematologic malignancies through T cell-mediated GVL effects. However, HCT benefits are frequently offset by the destructive GVHD, which is also induced by donor T cells. Naive Th can differentiate into Th1 and Th17 subsets and both can mediate GVHD after adoptive transfer into an allogeneic host. Here we tested the hy...

2016
Ahmed T. Kurdi Ribal Bassil Marta Olah Chuan Wu Sheng Xiao Mariko Taga Michael Frangieh Thomas Buttrick William Orent Elizabeth M. Bradshaw Samia J. Khoury Wassim Elyaman

RORγt is a master transcription factor of Th17 cells and considered as a promising drug target for the treatment of autoimmune diseases. Here, we show the guanine nucleotide exchange factor, Tiam1, and its cognate Rho-family G protein, Rac1, regulate interleukin (IL)17A transcription and autoimmunity. Whereas Tiam1 genetic deficiency weakens IL-17A expression partially and inhibits the developm...

2015
Hyung W. Lim Seung Goo Kang Jae Kyu Ryu Birgit Schilling Mingjian Fei Intelly S. Lee Amanuel Kehasse Kotaro Shirakawa Masaru Yokoyama Martina Schnölzer Herbert G. Kasler Hye-Sook Kwon Bradford W. Gibson Hironori Sato Katerina Akassoglou Changchun Xiao Dan R. Littman Melanie Ott Eric Verdin

The balance of effector and regulatory T cell function, dependent on multiple signals and epigenetic regulators, is critical to immune self-tolerance. Dysregulation of T helper 17 (Th17) effector cells is associated with multiple autoimmune diseases, including multiple sclerosis. Here, we report that Sirtuin 1 (SIRT1), a protein deacetylase previously reported to have an antiinflammatory functi...

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