Liver fibrosis is the integral process of chronic liver diseases caused by multiple etiologies and characterized by excessive deposition of extracellular matrix (ECM). During liver fibrosis, hepatic stellate cells (HSCs) transform into a highly proliferative, activated state, producing various cytokines, chemokines, and ECM. However, the precise mechanisms that license HSCs into the highly proliferative state remain unclear.
View Article and Find Full Text PDFBackground And Aims: Ischemia-reperfusion (I/R) injury frequently occurs during liver surgery, representing a major reason for liver failure and graft dysfunction after operation. The metabolic shift from oxidative phosphorylation to glycolysis during ischemia increased glucose consumption and accelerated lactate production. We speculate that donor livers will initiate gluconeogenesis, the reverse process of glycolysis in theory, to convert noncarbohydrate carbon substrates (including lactate) to glucose to reduce the loss of hepatocellular energy and foster glycogen storage for use in the early postoperative period, thus improving post-transplant graft function.
View Article and Find Full Text PDFHepatic specification and functional maturation are tightly controlled throughout development. N6-methyladenosine (mA) is the most abundant RNA modification of eukaryotic mRNAs and is involved in various physiological and pathological processes. However, the function of mA in liver development remains elusive.
View Article and Find Full Text PDFActivation of hepatic stellate cells (HSCs) is a central driver of liver fibrosis. Previous investigations have identified various altered epigenetic landscapes during the cellular progression of HSC activation. N6-methyladenosine (mA) is the most abundant internal RNA modification in eukaryotic cells and is dynamically regulated under various physiological and pathophysiological conditions.
View Article and Find Full Text PDFBackground: Fulminant hepatitis is a severe life-threatening clinical condition with rapid progressive loss of liver function. It is characterized by massive activation and infiltration of immune cells into the liver and disturbance of inflammatory cytokine production. Mesenchymal stem cells (MSCs) showed potent immunomodulatory properties.
View Article and Find Full Text PDFDeath-associated protein kinase 1 (DAPK1) is a Ca/calmodulin regulated Ser/Thr kinase involved in various cellular processes including cell death, autophagy and inflammation. Its dysregulation has been linked to tumour metastasis, anti-viral responses, Alzheimer's disease and other neurological disorders. To further investigate the role of DAPK1 in these processes, we generated a DAPK1 knockout first (conditional ready) human embryonic stem (hES) cell line in which the endogenous DAPK1 can be easily restored with expression of FLPe.
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