The knowledge accumulated throughout the years about liver regeneration has allowed a better understanding of normal liver physiology, by reconstructing the sequence of steps that this organ follows when it must rebuild itself after being injured. The scientific community has used several interdisciplinary approaches searching to improve liver regeneration and, therefore, human health. Here, we provide a brief history of the milestones that have advanced liver surgery, and review some of the new insights offered by the interdisciplinary work using animals, in vitro models, tissue engineering, or mathematical models to help advance the knowledge on liver regeneration. We also present several of the main approaches currently available aiming at providing liver support and overcoming organ shortage and we conclude with some of the challenges found in clinical practice and the ethical issues that have concomitantly emerged with the use of those approaches.
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http://dx.doi.org/10.3390/cells11223696 | DOI Listing |
Theranostics
January 2025
Department of Infectious Diseases, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China.
Acute liver failure (ALF) is marked by a substantial generation of reactive oxygen species (ROS), which can induce both cellular senescence and a pronounced inflammatory response. Senescent cells secrete factors collectively termed the senescence-associated secretory phenotype (SASP), which exacerbate inflammation, while inflammation can reciprocally promote cellular senescence. Quercetin (Que), recognized for its ROS-scavenging capabilities, holds the potential for anti-inflammatory and anti-senescent effects.
View Article and Find Full Text PDFLiver tissue engineering offers potential in liver transplantation, while the development of hydrogels for scalable scaffolds incorporating natural components and effective functionalities is ongoing. Here, we propose a novel microfluidic 3D printing hydrogel derived from decellularized fish liver extracellular matrix for liver regeneration. By decellularizing fish liver and combining it with gelatin methacryloyl, the hydrogel scaffold retains essential endogenous growth factors such as collagen and glycosaminoglycans.
View Article and Find Full Text PDFNat Metab
January 2025
State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, China.
Nucleotide availability is crucial for DNA replication and repair; however, the coordinating mechanisms in vivo remain unclear. Here, we show that the circadian clock in the liver controls the activity of the pentose phosphate pathway (PPP) to support de novo nucleotide biosynthesis for DNA synthesis demands. We demonstrate that disrupting the hepatic clock by genetic manipulation or mistimed feeding impairs PPP activity in male mice, leading to nucleotide imbalance.
View Article and Find Full Text PDFJ Vet Diagn Invest
January 2025
Intracellular Pathogens Research Laboratory, Comparative Medicine Institute, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA.
A 13-y-old, spayed female dog had regenerative anemia, lymphopenia, hypoalbuminemia, and elevated hepatic biochemical parameters. Liver biopsy revealed hepatic peliosis (hepatic sinusoidal angiectasis), frequently associated with perisinusoidal fibrosis. The dog was seroreactive to antigens by indirect fluorescent antibody assays, and quantitative PCR from blood identified subsp.
View Article and Find Full Text PDFInt J Mol Sci
December 2024
Departments of Genetics, Microbiology and Immunology, Center for Research on Harmful Effects of Biological and Chemical Hazards, Faculty of Medical Sciences, University of Kragujevac, 69 Svetozara Markovica Street, 34000 Kragujevac, Serbia.
Primary Sjögren's syndrome (pSS) is an autoimmune disease characterized by the infiltration of lymphocytes on salivary and lacrimal glands, resulting in their dysfunction. Patients suffering from severe pSS have an increased risk of developing multi-organ dysfunction syndrome due to the development of systemic inflammatory response, which results in immune cell-driven injury of the lungs, kidneys, liver, and brain. Therapeutic agents that are used for the treatment of severe pSS encounter various limitations and challenges that can impact their effectiveness.
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