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Mesenchymal stem cell conditioned medium improves hypoxic injury to protect islet graft function.
Zhong Nan Da Xue Xue Bao Yi Xue Ban
August 2024
Department of Radiology, Third Xiangya Hospital, Central South University, Changsha 410013, China.
Objectives: Islet transplantation is one of the most promising curative methods for type 1 diabetes mellitus (T1DM), but early hypoxic death of the graft post-transplantation impedes successful treatment. To improve the efficacy of islet transplantation and enhance islet cell resistance to hypoxia, reducing hypoxic injury before revascularization is crucial. Mesenchymal stem cells (MSCs) are known to regulate immune responses and protect against hypoxic damage through paracrine mechanisms.
View Article and Find Full Text PDFPharmacological Vitamin C-induced high HO generation mediates apoptotic cell death by caspase 3/7 activation in breast cancer tumor spheroids.
J Transl Med
January 2025
Department of Haematology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, 16150, Kelantan, Malaysia.
Background: Pharmacological vitamin C (Vit-C), or high-dose Vit-C has recently gained attention as a potential cancer therapeutic. However, the anticancer activity of Vit-C has not been investigated in realistic 3D models of human cancers, especially with respect to breast cancer (BC), and its potential benefits remain under debate. Herein, we investigate the activity and mechanism of action of pharmacological Vit-C on two BC tumor spheroids.
View Article and Find Full Text PDFThe Formyl Peptid Receptor Ligand Ac2-26 Improves the Integrity of the Blood-Brain Barrier in the Course of Pneumococcal Meningitis.
Cells
December 2024
Institute of Anatomy, Rostock University Medical Center, Rostock, Gertrudenstraße 9, 18057 Rostock, Germany.
Background: The brain is protected from invading pathogens by the blood-brain barrier (BBB) and the innate immune system. Pattern recognition receptors play a crucial role in detecting bacteria and initiating the innate immune response. Among these are G-protein-coupled formyl peptide receptors (FPR), which are expressed by immune cells in the central nervous system.
View Article and Find Full Text PDFRIPK4 Downregulation Reduces ABCG2 Expression, Increasing BRAF-Mutated Melanoma Cell Susceptibility to Cisplatin- and Doxorubicin-Induced Apoptosis.
Biomolecules
December 2024
Department of Biophysics and Cancer Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa Street 7, 30-387 Krakow, Poland.
Melanoma cells remain resistant to chemotherapy with cisplatin (CisPt) and doxorubicin (DOX). The abnormal expression of Receptor-Interacting Protein Kinase 4 (RIPK4) in certain melanomas contributes to tumour growth through the NFκB and Wnt/β-catenin signalling pathways, which are known to regulate chemoresistance and recurrence. Despite this, the role of RIPK4 in response to chemotherapeutics in melanoma has not been reported.
View Article and Find Full Text PDFSuccinate Regulates Endothelial Mitochondrial Function and Barrier Integrity.
Antioxidants (Basel)
December 2024
Otto Loewi Research Center for Vascular Biology, Immunology and Inflammation, Division of Pharmacology, Medical University of Graz, 8010 Graz, Austria.
Endothelial dysfunction is a hallmark of several pathological conditions, including cancer, cardiovascular disease and inflammatory disorders. In these conditions, perturbed TCA cycle and subsequent succinate accumulation have been reported. The role of succinate as a regulator of immunological responses and inflammation is increasingly being recognized.
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