Results 111 to 120 of about 94,347 (282)

Immune inhibitory function of bovine CTLA-4 and the effects of its blockade in IFN-γ production

BMC Veterinary Research, 2019
Background Cytotoxic T-lymphocyte antigen 4 (CTLA-4) is known as an immune inhibitory receptor that is expressed on activated effector T cells and regulatory T cells. When CTLA-4 binds to CD80 or CD86, immunoinhibitory signals are transmitted to retain a
Kei Watari, Satoru Konnai, Naoya Maekawa, Tomohiro Okagawa, Yasuhiko Suzuki, Shiro Murata, Kazuhiko Ohashi   +6 more
doaj   +1 more source

Exploiting the neoantigen landscape for immunotherapy of pancreatic ductal adenocarcinoma [PDF]

, 2016
Immunotherapy approaches for pancreatic ductal adenocarcinoma (PDAC) have met with limited success. It has been postulated that a low mutation load may lead to a paucity of T cells within the tumor microenvironment (TME).
Alvarez, Hector A., Bailey, Peter, Biankin, Andrew V., Chang, David K., Chattopadhyay, Chandrani, Ekmekcioglu, Suhendan, Forget, Marie-Andrée, Grimm, Elizabeth A., Haymaker, Cara, Hwu, Patrick, Kim, Sun-Hee, Maitra, Anirban, Roszik, Jason, San Lucas, Francis A.   +13 more
core   +1 more source

β‐Adrenergic Signaling Promotes Anti‐Tumor Immunity in TP53‐mutant Oral Squamous Cell Carcinoma

Advanced Science, EarlyView.
β‐adrenergic stimulation enhances anti‐tumor immunity in TP53‐deficient oral squamous cell carcinoma by inducing tumor‐derived secretion of CXCL10, which attracts and activates cytotoxic CD8+ T cells. The findings demonstrate that β‐adrenergic signaling alters tumor–immune interactions via CXCL10‐mediated paracrine activation, revealing a neuro‐immune ...
Frederico O. Gleber‐Netto, Deborah Silverman, Tongxin Xie, Shamima Akhter, Nicole R. Vaughn, Adewale Adebayo, Kala Chand Debnath, Shorook Naara, Shajedul Islam, Erik Knutsen, Emily Lorin Ashkin, Simone Anfossi, Sara Leahey, Patrick Hwu, Sebastien Talbot, Erica K Sloan, Robert Saddawi‐Konefka, Roberto Rangel, Jeffrey N. Myers, George A. Calin, Moran Amit   +20 more
wiley   +1 more source

The gut microbiota and immune checkpoint inhibitors. [PDF]

, 2018
Although immunotherapy has been remarkably effective across multiple cancer types, there continues to be a significant number of non-responding patients. A possible factor proposed to influence the efficacy of immunotherapies is the gut microbiome.
Daud, Adil, Humphries, Audrey
core   +1 more source

Depletion of the RNA‐Editing Enzyme ADAR1 Invigorates the Antitumor Immunity of NK Cells

Advanced Science, EarlyView.
ADAR1 is upregulated in NK cells from melanoma patients, impairing their function. Its loss enhances NK cell tumor infiltration and cytotoxicity in vitro and in vivo. Mechanistically, ADAR1 deficiency destabilizes CD38 mRNA to reduce its expression, thereby increasing NK cell mobility and killing, which nominates it as a therapeutic target for NK cell ...
Shuhan Chen, Di Lu, Rukang Liang, Weikeng Tan, Erming Zhao, Sihuang Wu, Xintong Li, Yulong Song, Miaojian Wan, Xiaoyuan Xie, Qi Zhang, Qiuli Liu   +11 more
wiley   +1 more source

Mechanistic Insights into the Inhibition of a Common CTLA-4 Gene Mutation in the Cytoplasmic Domain

Molecules
Cytotoxic T-lymphocyte antigen 4 (CTLA-4) is a pivotal immune checkpoint receptor, playing a crucial role in modulating T-cell activation. In this study, we delved into the underlying mechanism by which a common mutation, G199R, in the cytoplasmic domain
Jikang Xu, Yu Zhang, Lijuan Shen, Lingyu Du, Hongjuan Xue, Bin Wu, Bo OuYang   +6 more
doaj   +1 more source

Biochemical analysis of CTLA-4 immunoreactive material from human blood

BMC Immunology, 2009
Background CTLA-4 was initially described as a membrane-bound molecule that inhibited lymphocyte activation by interacting with B7.1 and B7.2 molecules on antigen presenting cells.
Dennert Kate, Kozinski Karen, Khatri Bhupendra O, Tector Matt, Oaks Martin K   +4 more
doaj   +1 more source

CTLA-4 mediates inhibitory function of mesenchymal stem/stromal cells [PDF]

, 2018
Mesenchymal stem/stromal cells (MSCs) are stem cells of the connective tissue, possess a plastic phenotype, and are able to differentiate into various tissues. Besides their role in tissue regeneration, MSCs perform additional functions as a modulator or
Burmester, Gerd-R., Buttgereit, Frank, Gaber, Timo, Hoff, Holger, Hoff, Paula, Lang, Annemarie, Matziolis, Georg, Ohrndorf, Sarah, Pfeiffenberger, Moritz, Röhner, Eric, Schönbeck, Kerstin, Strehl, Cindy, Tran, Cam Loan   +12 more
core   +2 more sources

Biomimetic Nanomedicine for Senescence‐Modulated Immune Activation Enhances Immunotherapy Efficacy in Hepatocellular Carcinoma

Advanced Science, EarlyView.
A multifunctional mPDZM nanoplatform is developed in this study. mPDZM integrates chemotherapy‐induced senescence, selective senolysis, and STING‐mediated immune activation. mPDZM effectively clears senescent tumor cells, remodels the tumor immune microenvironment, and enhances antitumor T‐cell responses.
Shiji Fang, Liyun Zheng, Bin Lin, Jiale Chen, Dehai Hou, Yiming Ding, Mengzhu Han, Pan Qin, Mengyuan Wang, Xiaoju Guo, Yeyu Zhang, Gaofeng Shu, Fazong Wu, Jianfei Tu, Minjiang Chen, Zhongwei Zhao, Zhuang Liu, Jiansong Ji   +17 more
wiley   +1 more source

A next-generation anti-CTLA-4 probody mitigates toxicity and enhances anti-tumor immunity in mice

Nature Communications
CTLA-4 is a promising target for immune checkpoint inhibition in cancer therapy, with CTLA-4 blockade achieving prolonged overall survival for responding patients. However, the progressively elevated doses of anti-CTLA-4 agents, aimed at achieving better
Weian Cao, Junfan Chen, Yutong Fu, Haitao Jiang, Yu Gao, Huiming Huang, Yang-Xin Fu, Wenyan Wang   +7 more
doaj   +1 more source