Results 61 to 70 of about 93,479 (280)

Epithelial CD80 promotes immune surveillance of colonic preneoplastic lesions and its expression is increased by oxidative stress through STAT3 in colon cancer cells

Journal of Experimental & Clinical Cancer Research, 2019
Background One of the most potent costimulatory molecules involved in the recognition and killing of tumor cells is CD80. However, its role and the molecular mechanisms regulating its expression in sporadic colorectal carcinogenesis remain elusive. Here,
Chiara Marchiori, Melania Scarpa, Andromachi Kotsafti, Susan Morgan, Matteo Fassan, Vincenza Guzzardo, Andrea Porzionato, Imerio Angriman, Cesare Ruffolo, Stefania Sut, Stefano Dall’Acqua, Romeo Bardini, Raffaele De Caro, Carlo Castoro, Marco Scarpa, Ignazio Castagliuolo   +15 more
doaj   +1 more source

B70/B7-2 is identical to CD86 and is the major functional ligand for CD28 expressed on human dendritic cells. [PDF]

, 1994
Dendritic cells comprise a system of highly efficient antigen-presenting cells involved in the initiation of T cell responses. Herein, we investigated the role of the CD28 pathway during alloreactive T cell proliferation induced by dendritic-Langerhans ...
Azuma, M, Banchereau, J, Caux, C, Lanier, LL, Massacrier, C, Okumura, K, Vanbervliet, B   +6 more
core  

Cell surface interactome analysis identifies TSPAN4 as a negative regulator of PD‐L1 in melanoma

Molecular Oncology, EarlyView.
Using cell surface proximity biotinylation, we identified tetraspanin TSPAN4 within the PD‐L1 interactome of melanoma cells. TSPAN4 negatively regulates PD‐L1 expression and lateral mobility by limiting its interaction with CMTM6 and promoting PD‐L1 degradation.
Guus A. Franken, Andrea Abel Gutierrez, Imke van Rossum, Cornelia G. Spruijt, Michiel Vermeulen, Guido van Mierlo, Blanca Scheijen, Annemiek B. van Spriel   +7 more
wiley   +1 more source

Cytotoxic T lymphocyte-associated antigen-4-Ig (CTLA-4-Ig) suppresses Staphylococcus aureus-induced CD80, CD86, and pro-inflammatory cytokine expression in human B cells

Arthritis Research & Therapy, 2020
Background Cytotoxic T lymphocyte-associated antigen-4-Ig (CTLA-4-Ig) competes with CD28 for binding CD80/CD86 on antigen-presenting cells (APCs) to limit T cell activation.
Po-Chun Liu, Chih-Tai Ssu, Yen-Po Tsao, Teh-Ling Liou, Chang-Youh Tsai, Chung-Tei Chou, Ming-Han Chen, Chuen-Miin Leu   +7 more
doaj   +1 more source

Tumor necrosis factor-alpha regulates the expression of inducible costimulator receptor ligand on CD34+ progenitor cells during differentiation into antigen presenting cells [PDF]

, 2001
The inducible costimulator receptor (ICOS) is a third member of the CD28 receptor family that regulates T cell activation and function. ICOS binds to a newly identified ligand on antigen presenting cells different from the CD152 ligands CD80 and CD86. We
Aicher, A, Clark, EA, Daemen, K, Hayden-Ledbetter, M, Irgang, M, Korner, I, Ledbetter, JA, Pezzutto, A, Richter, G, Westermann, J   +9 more
core  

Differential Requirement for CD80 and CD80/CD86-Dependent Costimulation in the Lung Immune Response to an Influenza Virus Infection [PDF]

The Journal of Immunology, 2000
AbstractThe CD28 costimulatory pathway is critical to T cell activation. Blockade of the interaction of CD28 with its ligands CD80 and CD86 using CTLA4-Ig has been proposed as a therapy for a number of immune-based disorders. We have used a murine model of influenza virus infection to study the role of CD28-dependent costimulation in the development of
J M, Lumsden, J M, Roberts, N L, Harris, R J, Peach, F, Ronchese   +4 more
openaire   +2 more sources

Tumor‐stromal crosstalk and macrophage enrichment are associated with chemotherapy response in bladder cancer

FEBS Open Bio, EarlyView.
Chemoresistance in bladder cancer: Macrophage recruitment associated with CXCL1, CXCL5 and CXCL8 expression is characteristic of Gemcitabine/Cisplatin (Gem/Cis) Non‐Responder tumors (right side) while Responder tumors did not show substantial tumor‐stromal crosstalk (left side). All biological icons are attributed to Bioicons: carcinoma, cancerous‐cell‐
Sophie Leypold, Janik Riese, Lancelot Seillier, Mark Kühnel, Julia Pannhausen, Charlotte O. J. Fröhlich, Christian Martin, Peter Boor, Matthias Saar, Danny D. Jonigk, Nadine T. Gaisa, Michael Rose   +11 more
wiley   +1 more source

Self‐Immolative Activatable Nanoassembly toward Immuno‐Photodynamic Therapy in TME

Advanced Functional Materials, EarlyView.
A quinone methide‐gated, self‐immolative, H2O2‐responsive nano‐photosensitizer (Pyz/PS) is developed for targeted immuno‐photodynamic therapy. Pyz/PS selectively activates within tumor microenvironments, restores photosensitizer activity, generates ROS, and depletes intracellular GSH, enhancing oxidative stress.
Jing Li, E Pang, Snehasish Debnath, Jia Hong, Aojun Qiu, Dongeun Kim, Goeun Kim, Minhuan Lan, Min‐Goo Lee, Qian‐Yong Cao, Jong Seung Kim   +10 more
wiley   +1 more source

The immunological synapse and CD28-CD80 interactions

Nature Immunology, 2001
According to the two-signal model of T cell activation, costimulatory molecules augment T cell receptor (TCR) signaling, whereas adhesion molecules enhance TCR-MHC-peptide recognition. The structure and binding properties of CD28 imply that it may perform both functions, blurring the distinction between adhesion and costimulatory molecules. Our results
Bromley, S, Iaboni, A, Davis, S, Whitty, A, Green, J, Shaw, A, Weiss, A, Dustin, M   +7 more
openaire   +3 more sources

Bimetallic Nanoreactor Activates cGAS‐STING Pathway via mtDNA Release for Cancer Metalloimmunotherapy

Advanced Functional Materials, EarlyView.
A bimetallic Mn–Ca nanoreactor (MCC) is developed as a non‐nucleotide STING nanoagonist for cancer metalloimmunotherapy. MCC induces Ca2+ overload and hydroxyl radical generation, resulting in mitochondrial damage and mtDNA release. The released mtDNA cooperates with Mn2+ to robustly activate cGAS–STING signaling.
Xin Wang Mo, Nguyen Thi Nguyen, LiLi Guo, Ngoc Man Phan, Hyunsu Shin, Tae‐il Kim, Yu Seok Youn, Jaeyun Kim   +7 more
wiley   +1 more source