نتایج جستجو برای: exhausted regulatory t cells

تعداد نتایج: 2030212  

2016
Qing Li Nathan Johnston Xiufen Zheng Hongmei Wang Xusheng Zhang Dian Gao Weiping Min

T cell exhaustion is a state of T cell dysfunction that arises during many cancer. miRNAs are one of major gene regulators which result in translational inhibition and/or mRNA degradation. We hypothesized that miRNAs exist that can silence PD1 and act as a modulator in vitro to revert exhaustive status of T cells. We demonstrated that the exhausted T cells with inhibitory receptors (IRs) are si...

Abtin Shahlaee Adel Sepanjnia Aliakbar Amirzargar, Fateme Pourrezagholi Mahboob Lessan Pezeshki Mahmoud Parvin Mohammad Hossein Nicknam Mohsen Nafar Pedram Ahmadpoor Sara Assadiasl

Background: Regulatory T cells have been suggested to have a protective role against acute rejection in allograft recipients. However, there is little information available about their contribution to chronic rejection process. The role of transforming growth factor-beta 1 (TGF- β1) as a profibrogenic and/or immunoregulatory cytokine in renal allografts is also controversial. Objectives: To eva...

Journal: :Nature Reviews Drug Discovery 2017

Journal: :Bone Marrow Transplantation 2006

Journal: :Cell 2006
Taku Okazaki Tasuku Honjo

In a recent paper in Nature, show that the immunoreceptor PD-1 is upregulated by "exhausted" T cells during the chronic phase of viral infection in mice. Remarkably, blocking the interaction between PD-1 and its ligand, PD-L1, reactivates these T cells and reduces viral load.

2015
Franz J Gassner Nadja Zaborsky Kemal Catakovic Stefan Rebhandl Michael Huemer Alexander Egle Tanja N Hartmann Richard Greil Roland Geisberger

Although chronic lymphocytic leukaemia (CLL) is a B cell malignancy, earlier studies have indicated a role of T cells in tumour growth and disease progression. In particular, the functional silencing of antigen-experienced T cells, called T cell exhaustion, has become implicated in immune evasion in CLL. In this study, we tested whether T cell exhaustion is recapitulated in the TCL1(tg) mouse m...

Journal: :iranian journal of immunology 0
mahboobeh razmkhah shiraz institute for cancer research nadieh abedi shiraz institute for cancer research ahmad hosseini shiraz institute for cancer research mohammad taghi imani department of plastic surgery abdol-rasoul talei department of surgery abbas ghaderi shiraz institute for cancer research

background: adipose derived stem cells (ascs) provoke the accumulation and expansion of regulatory t cells, leading to the modulation of immune responses in tumor microenvironment. objective: to assess the effect of tumoral ascs on the trend of regulatory t cells differentiation. methods: peripheral blood naïve cd4+ t cells were co-cultured with ascs derived from breast cancer or normal breast ...

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