Background: The lysosomal autophagic pathway plays a fundamental role in cellular and tissue homeostasis, and its deregulation is linked to human pathologies including kidney diseases. Autophagy can randomly degrade cytoplasmic components in a nonselective manner commonly referred to as bulk autophagy. In contrast, selective forms of autophagy specifically target cytoplasmic structures such as organelles and protein aggregates, thereby being important for cellular quality control and organelle homeostasis.
View Article and Find Full Text PDFProliferative glomerulonephritis is a severe condition that often leads to kidney failure. There is a significant lack of effective treatment for these disorders. Here, following the identification of a somatic PIK3CA gain-of-function mutation in podocytes of a patient, we demonstrate using multiple genetically engineered mouse models, single-cell RNA sequencing, and spatial transcriptomics the crucial role played by this pathway for proliferative glomerulonephritis development by promoting podocyte proliferation, dedifferentiation, and inflammation.
View Article and Find Full Text PDFBackground: Hemorrhagic shock (HS) and rhabdomyolysis (RM) are two important risk factors for acute kidney injury after severe trauma; however, the effects of the combination of RM and HS on kidney function are unknown. The purpose of this study was to determine the impact of RM and HS on renal function, oxygenation, perfusion, and morphology in a pig model.
Methods: Forty-seven female pigs were divided into five groups: sham, RM, HS, HS and moderate RM (RM4/HS), and HS and severe RM (RM8/HS).