نتایج جستجو برای: ox40

تعداد نتایج: 901  

Journal: :Blood 2001
A Kotani T Ishikawa Y Matsumura T Ichinohe H Ohno T Hori T Uchiyama

There is no reliable laboratory indicator of the onset of chronic graft-versus-host disease (cGVHD). This study looks at whether the expression of OX40, a member of the tumor necrosis factor receptor family, is related to the development of cGVHD in patients who underwent allogeneic hematopoietic stem cell transplantation. Peripheral blood mononuclear cells from 22 patients after day 100 were s...

Journal: :Blood 2005
Barbara Valzasina Cristiana Guiducci Heidrun Dislich Nigel Killeen Andrew D Weinberg Mario P Colombo

OX40 (CD134) is a member of the tumor necrosis factor (TNF) receptor family that is transiently expressed on T cells after T-cell receptor (TCR) ligation. Both naive and activated CD4(+)CD25+ regulatory T cells (T reg's) express OX40 but its functional role has not been determined. Since glucocorticoid-induced tumor necrosis factor receptor (GITR), a related TNF receptor family member, influenc...

Journal: :Journal of immunology 2009
David R Withers Elin Jaensson Fabrina Gaspal Fiona M McConnell Bertus Eksteen Graham Anderson William W Agace Peter J L Lane

Although CD4(+) memory T cells reside within secondary lymphoid tissue, the major reservoir of these cells is in the lamina propria of the intestine. In this study, we demonstrate that, in the absence of signals through both OX40 and CD30, CD4(+) T cells are comprehensively depleted from the lamina propria. Deficiency in either CD30 or OX40 alone reduced CD4(+) T cell numbers, however, in mice ...

Journal: :Journal of leukocyte biology 2004
Andrew D Weinberg Dean E Evans Colin Thalhofer Tom Shi Rodney A Prell

OX40 (CD134), a membrane-bound member of the tumor necrosis factor-receptor superfamily, is expressed primarily on activated CD4(+) T cells. Following engagement on the cell surface, OX40 delivers a costimulatory signal that leads to potent, proinflammatory effects. Engagement of OX40 during antigen (Ag)-specific stimulation of T cells leads to increased production of memory T cells, increased ...

Journal: :Journal of immunology 2013
Tobias Boettler Youn Soo Choi Shahram Salek-Ardakani Yang Cheng Friedrich Moeckel Michael Croft Shane Crotty Matthias von Herrath

T cell costimulation is a key component of adaptive immunity to viral infection but has also been associated with pathology because of excessive or altered T cell activity. We recently demonstrated that the TNFR family costimulatory molecule OX40 (CD134) is critically required to sustain antiviral T cell and Ab responses that enable control of viral replication in the context of chronic lymphoc...

Journal: :Journal of immunology 2009
Carl E Ruby Andrew D Weinberg

OX40 agonists have potent immunotherapeutic effects against a variety of murine tumors, yet it is unclear the role that age-related immune senescence plays on their efficacy. We found that middle-aged and elderly tumor-bearing mice (12 and 20 mo old, respectively) treated with anti-OX40 were less responsive compared with young mice 6 mo or less of age. Decreased tumor-free survival was observed...

2013
Brendan D. Curti Magdalena Kovacsovics-Bankowski Nicholas Morris Edwin Walker Lana Chisholm Kevin Floyd Joshua Walker Iliana Gonzalez Tanisha Meeuwsen Bernard A. Fox Tarsem Moudgil William Miller Daniel Haley Todd Coffey Brenda Fisher Laurie Delanty-Miller Nicole Rymarchyk Tracy Kelly Todd Crocenzi Eric Bernstein Rachel Sanborn Walter J. Urba Andrew D. Weinberg

OX40 is a potent costimulatory receptor that can potentiate T-cell receptor signaling on the surface of T lymphocytes, leading to their activation by a specifically recognized antigen. In particular, OX40 engagement by ligands present on dendritic cells dramatically increases the proliferation, effector function, and survival of T cells. Preclinical studies have shown that OX40 agonists increas...

Journal: :Journal of immunology 2007
William L Redmond Michael J Gough Bridget Charbonneau Timothy L Ratliff Andrew D Weinberg

Several members of the TNFR superfamily, including OX40 (CD134), 4-1BB (CD137), and CD27 provide critical costimulatory signals that promote T cell survival and differentiation in vivo. Although several studies have demonstrated that OX40 engagement can enhance CD4 T cell responses, the mechanisms by which OX40-mediated signals augment CD8 T cell responses are still unclear. Previously, we and ...

Journal: :Cancer immunology research 2021

Abstract CTLA-4 blockade in combination with an agonist OX40-specific monoclonal antibody synergizes to augment antitumor immunity through enhanced T-cell effector function, leading increased survival preclinical cancer models. We have shown previously that anti-OX40/anti–CTLA-4 therapy synergistically enhances the expression of Eomesodermin (Eomes) CD8+ T cells. Eomes is a critical transcripti...

Journal: :Journal of immunology 2002
Thibaut De Smedt Jeffrey Smith Peter Baum William Fanslow Eric Butz Charles Maliszewski

Dendritic cells (DCs) are bone marrow-derived APCs that display unique properties aimed at stimulating naive T cells. Several members of the TNF/TNFR families have been implicated in T cell functions. In this study, we examined the role that Ox40 costimulation might play on the ability of DCs to regulate CD4(+) and CD8(+) T cell responses in vivo. Administration of anti-mouse Ox40 mAb enhanced ...

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