Results 141 to 150 of about 276,897 (341)

Moving forward to address key unanswered questions on targeting PD-1/PD-L1 in cancer: limitations in preclinical models and the need to incorporate human modifying factors. [PDF]

open access: yes, 2019
The tremendous clinical success of immune checkpoint inhibition (ICI), particularly targeting the programmed cell death protein 1 (PD-1)/programmed death-ligand 1/2 (PD-L1/2) pathway, has resulted in application to multiple cancers, as a monotherapy and ...
Le, Catherine T, Murphy, William J
core   +1 more source

Interactions of Antibody Drug Conjugate Anti‐Tubulin and Topoisomerase I Inhibitor Payloads with Radiotherapy to Potentiate Immunotherapy

open access: yesAdvanced Science, EarlyView.
Antibody drug conjugates deliver their cytotoxic anti‐tubulin or topoisomerase I inhibitor payloads to tumors through cancer cell receptor targeting. The released drug payloads induce cellular changes that interact with radiotherapy resulting in radiosensitization that improves cancer cell kill and stimulates anti‐tumor immune responses.
Jacqueline Lesperance   +17 more
wiley   +1 more source

Antigen-Presenting Cell-Intrinsic PD-1 Neutralizes PD-L1 in cis to Attenuate PD-1 Signaling in T Cells

open access: yesCell Reports, 2018
Summary: The PD-1 pathway, consisting of the co-inhibitory receptor PD-1 on T cells and its ligand (PD-L1) on antigen-presenting cells (APCs), is a major mechanism of tumor immune evasion.
Yunlong Zhao   +5 more
doaj   +1 more source

Tailoring Vascular‐Immune Homeostasis via Manganese‐DNA Complex‐Armed Immunogenic Extracellular Vesicles for Pancreatic Cancer Immunotherapy

open access: yesAdvanced Science, EarlyView.
This study demonstrates that Mn2⁺–tumor DNA complexes encapsulated in dendritic cell (DC)– derived immunogenic extracellular vesicles (EVDC@Mn‐DNA) act as a DC‐specific cGAS– STING activator. EVDC@Mn‐DNA treatment enhances intratumoral DC activation, improves tumor vascular function, promotes CD8⁺ T cell activity, and suppresses pancreatic tumor growth,
Xue Jiang   +13 more
wiley   +1 more source

Mitochondrial Calcium Uniporter Drives Chemoresistance in Pancreatic Cancer via Glutathione‐Mediated Stemness Maintenance

open access: yesAdvanced Science, EarlyView.
PDAC has a poor prognosis due to chemoresistance. We revealed that MCU upregulation is associated with chemoresistance and stemness in PDAC. MCU‐mediated Ca2+ influx induced ER stress, activating the PERK‐ATF4/NRF2 axis to enhance PSAT1/SLC711 expression and glutathione synthesis, reducing ROS and maintaining stemness.
Zekun Li   +17 more
wiley   +1 more source

PD‐1 Inhibits CD4+ TRM‐Mediated cDC1 Mobilization via Suppressing JAML in Human NSCLC

open access: yesAdvanced Science, EarlyView.
CD4+ tissue‐resident memory T cells (TRMs) in non‐small cell lung cancer recruit conventional type 1 dendritic cells via XCL1‐XCR1 signaling, orchestrating antitumor immunity. The costimulatory molecule JAML is essential for this process. PD‐1 blockade restores JAML expression and cDC1 mobilization, while JAML agonists synergize with anti‐PD‐1 therapy,
Zheyu Shao   +16 more
wiley   +1 more source

Clinicopathological association of programmed death-ligand 1 (PD-L1) expression in uterine cervical carcinomas: A cross-sectional observational study

open access: yesIndian Journal of Pathology and Microbiology
Background: Programmed death ligand (PD-L1) binds to its receptor PD-1 on T-cells and inhibits the immune response of T-lymphocytes. Cancer cells evade immune surveillance by upregulating PD-L1 expression, leading to tumor progression.
Md Ashab Anwer   +5 more
doaj   +1 more source

CYP4X1/sEH‐Dependent Endocannabinoid Metabolism Drives Fibroblast‐Mediated Immunosuppression to Limit Immunotherapy in Colon Cancer

open access: yesAdvanced Science, EarlyView.
A proposed mechanism to explain the role of CYP4X1/sEH‐14,15‐EET‐EA system in colon cancer immune escape. 14,15‐EET‐EA, 14,15‐epoxyeicosatrienoic acid‐ethanolamide; sEH, soluble epoxide hydrolase; CYP4X1, cytochrome P450 4X1; GPR119, G‐protein coupled receptor 119; EGFR, epidermal growth factor receptor; Gs, Gαs subunit; cAMP, cyclic adenosine ...
Min Mo   +10 more
wiley   +1 more source

The Expression and Biological Significance of PD-L1 on Lung Cancer Cell Lines [PDF]

open access: yes, 2009
Background and objective Tumor-associated PD-L1 expression was recently shown to promote T-cell apoptosis and proposed as a potential mechanism of immune evasion by tumors. On the basis of the ability of tumor-associated PD-L1 to mediate activated T-cell
Cheng CHEN   +6 more
core  

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