AbstractThe COVID-19 vaccine is a significant technological advancement with widespread global use. However, its effect on cancer immunity, particularly with repeated vac-cinations, remains unclear. We aimed to investigate the relationship between repeated vaccinations and pancreatic cancer (PC) prognosis. Additionally, we examined serum IgG4 levels, known to be an immune suppressor and increased with repeated vac-cinations.… Continue reading Repeated #COVID-19 #Vaccination as a Poor Prognostic Factor in Pancreatic #Cancer: A Retrospective, Single-Center Cohort Study
Tag: pancreas
Dual stromal targeting sensitizes pancreatic adenocarcinoma for anti-PD-1 therapy
Background and AimsThe stroma in pancreatic ductal adenocarcinoma (PDAC) contributes to its immunosuppressive nature and therapeutic resistance. Herein we sought to modify signaling and enhance immunotherapy efficacy by targeting multiple stromal components through both intracellular and extracellular mechanisms.MethodsA murine liver metastasis syngeneic model of PDAC was treated with focal adhesion kinase inhibitor (FAKi), anti-PD-1 antibody… Continue reading Dual stromal targeting sensitizes pancreatic adenocarcinoma for anti-PD-1 therapy
Pancreatic islet cryopreservation by vitrification achieves high viability, function, recovery and clinical scalability for transplantation
Pancreatic islet transplantation can cure diabetes but requires accessible, high-quality islets in sufficient quantities. Cryopreservation could solve islet supply chain challenges by enabling quality-controlled banking and pooling of donor islets. Unfortunately, cryopreservation has not succeeded in this objective, as it must simultaneously provide high recovery, viability, function and scalability. Here, we achieve this goal in… Continue reading Pancreatic islet cryopreservation by vitrification achieves high viability, function, recovery and clinical scalability for transplantation
Changes in #metabolic syndrome status are associated with altered risk of #pancreatic cancer: A nationwide cohort study
Background & AimsMetabolic syndrome (MetS) is reversible; however, the effect of changes in MetS status on pancreatic cancer risk is unknown. We aimed to investigate the effects of changes and persistence in MetS status on pancreatic cancer risk. MethodsThis nationwide cohort study included 8,203,492 adults without cancer who underwent two consecutive biennial health screenings provided… Continue reading Changes in #metabolic syndrome status are associated with altered risk of #pancreatic cancer: A nationwide cohort study
NOX4 links metabolic regulation in #pancreatic #cancer to endoplasmic reticulum redox vulnerability and dependence on PRDX4
There is an urgent need to identify vulnerabilities in pancreatic ductal adenocarcinoma (PDAC). PDAC cells acquire metabolic changes that augment NADPH production and cytosolic redox homeostasis. Here, we show that high NADPH levels drive activity of NADPH oxidase 4 (NOX4) expressed in the endoplasmic reticulum (ER) membrane. NOX4 produces H2O2 metabolized by peroxiredoxin 4 (PRDX4)… Continue reading NOX4 links metabolic regulation in #pancreatic #cancer to endoplasmic reticulum redox vulnerability and dependence on PRDX4
#Glucagon blockade restores functional β-cell mass in type 1 #diabetic mice and enhances function of human islets
Both type 1 and type 2 diabetes are associated with reduced β-cell mass or function, resulting from decreased proliferation and increased apoptosis. Understanding the signals governing β-cell survival and regeneration is critical for developing strategies to maintain healthy populations of these cells in individuals. Both forms of diabetes are associated with hyperglucagonemia and an increased… Continue reading #Glucagon blockade restores functional β-cell mass in type 1 #diabetic mice and enhances function of human islets
NAD+ depletion by type I interferon signaling sensitizes #pancreatic cancer cells to NAMPT inhibition
Emerging evidence suggests that intratumoral interferon (IFN) signaling can trigger targetable vulnerabilities. A hallmark of pancreatic ductal adenocarcinoma (PDAC) is its extensively reprogrammed metabolic network, in which nicotinamide adenine dinucleotide (NAD) and its reduced form, NADH, are critical cofactors. Here, we show that IFN signaling, present in a subset of PDAC tumors, substantially lowers NAD(H)… Continue reading NAD+ depletion by type I interferon signaling sensitizes #pancreatic cancer cells to NAMPT inhibition
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