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Elevated protein lactylation promotes immunosuppressive microenvironment and therapeutic resistance in pancreatic ductal adenocarcinoma.
J Clin Invest
January 2025
Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.
Metabolic reprogramming shapes tumor microenvironment (TME) and may lead to immunotherapy resistance in pancreatic ductal adenocarcinoma (PDAC). Elucidating the impact of pancreatic cancer cell metabolism in the TME is essential to therapeutic interventions. "Immune cold" PDAC is characterized by elevated lactate levels resulting from tumor cell metabolism, abundance of pro-tumor macrophages, and reduced cytotoxic T cell in the TME.
View Article and Find Full Text PDFHIF-1α/HO-1-Mediated Ferroptosis Participates in Polystyrene Nanoplastics-Induced Intergenerational Cardiotoxicity.
Nano Lett
January 2025
School of Basic Medical Sciences, Binzhou Medical University, Yantai 264003, China.
To explore the intergenerational cardiotoxicity of nanoplastics, maternal mice were exposed to 60 nm polystyrene nanoplastics (PS-NP) during pregnancy and lactation. The results showed that PS-NP can enter the hearts of offspring and induce myocardial fiber arrangement disorder, acidophilic degeneration of cardiomyocytes, and elevated creatine kinase isoenzymes (CK-MB) and lactate dehydrogenase (LDH) levels after maternal exposure to PS-NP at 100 mg/kg during pregnancy and lactation. Mechanistically, KEGG analysis of RNA sequencing showed the participation of hypoxia-inducible factor-1 (HIF-1) and ferroptosis in PS-NP-induced cardiotoxicity.
View Article and Find Full Text PDF[83-year-old with angina pectoris, hemoglobinuria and icterus].
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St. Antonius-Hospital, Eschweiler, Deutschland.
An 83-year-old female patient presented with angina pectoris, hemoglobinuria and jaundice. Laboratory diagnostics proved difficult due to hemolysis in all blood tubes, following re-evaluation after warming the blood sample.With low haptoglobin, elevated lactate dehydrogenase and elevated indirect bilirubin, we made a suspected diagnosis of autoimmune hemolytic anemia with cold antibodies, which was confirmed through a positive Coombs test and detection of C3d-loaded erythrocytes.
View Article and Find Full Text PDFAntibiotic-derived approaches in cancer therapy: effectiveness of ikarugamycin in hexokinase-2 inhibition, tissue factor modulation, and metabolic regulation in breast cancer.
Anticancer Drugs
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Department of Biochemistry, Institute of Health Science.
We aimed to explore the role of ikarugamycin (IKA) in breast cancer, its connection with hexokinase-2 (HK-2) repression, and tissue factor (TF). This study sought to extend the role of HK-2 as a TF activator in a comprehensive analysis of these interactions from the enzyme, gene, and protein levels. The investigation was performed with MDA-MB-231 and MCF-7 breast cancer lines.
View Article and Find Full Text PDFGestational Age at Delivery Is an Independent Predictor of Neonatal Outcome for Maternal HELLP Syndrome.
J Clin Hypertens (Greenwich)
January 2025
Department of Obstetrics and Gynecology, Women and Children's Hospital of Chongqing Medical University, Chongqing, China.
Hemolysis, elevated liver enzymes, low platelet count (HELLP) syndrome is a severe complication of preeclampsia (PE), with a higher incidence rate in people living at high altitudes, such as Tibet area. Maternal HELLP syndrome is associated with an elevated neonatal mortality rate. The purpose of this study was to investigate the predicting factors for neonatal outcomes with maternal HELLP syndrome.
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