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An OMV-Based Nanovaccine as Antigen Presentation Signal Enhancer for Cancer Immunotherapy.
Adv Mater
January 2025
Pancreas Center, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu Province, 210029, China.
Antigen-presenting cells (APCs) process tumor vaccines and present tumor antigens as the first signals to T cells to activate anti-tumor immunity, which process requires the assistance of co-stimulatory second signals on APCs. The immune checkpoint programmed death ligand 1 (PD-L1) not only mediates the immune escape of tumor cells but also acts as a co-inhibitory second signal on APCs. The serious dysfunction of second signals due to the high expression of PD-L1 on APCs in the tumor body results in the inefficiency of tumor vaccines.
View Article and Find Full Text PDFGanoderic Acid A Alleviates Severe Acute Pancreatitis by Modulating Gut Homeostasis and Inhibiting TLR4-NLRP3 Signaling.
J Agric Food Chem
January 2025
Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China.
Background Severe acute pancreatitis (SAP) manifests as a critical state marked by acute abdominal symptoms, often associated with intestinal barrier dysfunction, exacerbating SAP retroactively. Ganoderic acid A (GAA) demonstrates anti-inflammatory properties in various inflammatory disorders. Nonetheless, its potential therapeutic impact on SAP and the underlying mechanisms remain unexplored.
View Article and Find Full Text PDFEngineered extracellular vesicles as "supply vehicles" to alleviate type 1 diabetes.
Extracell Vesicles Circ Nucl Acids
November 2024
The Tenth Affiliated Hospital, Southern Medical University (Dongguan People's Hospital), Dongguan 523059, Guangdong, China.
Recent findings have indicated that the deficiency of inhibitory programmed cell death ligand 1 (PD-L1) and galectin-9 (Gal-9) in pancreatic β-cells is associated with the progression of type 1 diabetes (T1D). This suggests that exogenous PD-L1 and Gal-9 may have promising potential as therapeutics for the treatment of T1D. In light of these reports, a recent work investigated the potential of artificial extracellular vesicles (aEVs) with the presentation of PD-L1 and Gal-9 ligands (PD-L1-Gal-9 aEVs) as a treatment for T1D, with the findings published in .
View Article and Find Full Text PDFCD137 agonism enhances anti-PD1 induced activation of expanded CD8 T cell clones in a neoadjuvant pancreatic cancer clinical trial.
iScience
January 2025
Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Successful pancreatic ductal adenocarcinoma (PDAC) immunotherapy requires therapeutic combinations that induce quality T cells. Tumor microenvironment (TME) analysis following therapeutic interventions can identify response mechanisms, informing design of effective combinations. We provide a reference single-cell dataset from tumor-infiltrating leukocytes (TILs) from a human neoadjuvant clinical trial comparing the granulocyte-macrophage colony-stimulating factor (GM-CSF)-secreting allogeneic PDAC vaccine GVAX alone, in combination with anti-PD1 or with both anti-PD1 and CD137 agonist.
View Article and Find Full Text PDFRare pancreatic cystic neoplasms: A pictorial review.
Eur J Radiol Open
June 2025
Department of Radiological Nuclear and Laboratory Medicine - Pisa University Hospital, Via Paradisa 2, Pisa 56124, Italy.
Since rare pancreatic cystic tumors may differ from common pancreatic cystic neoplasms in terms of treatment plan and prognosis, the differential diagnosis of these diseases is clinically relevant. Various imaging tests play an important role in the differential diagnosis of rare cystic pancreatic tumors, but accurately distinguishing these diseases solely on the basis of imaging findings is challenging. The purpose of this pictorial review is to present CT and in particular MR imaging features of rare pancreatic cystic tumors and discuss potential elements for differential diagnosis.
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