Quantitation of lipid storage, unsaturation, and oxidation in live C. elegans has been a long-standing obstacle. The combination of hyperspectral stimulated Raman scattering imaging and multivariate analysis in the fingerprint vibration region represents a platform that allows the quantitative mapping of fat distribution, degree of fat unsaturation, lipid oxidation, and cholesterol storage in vivo in the whole worm. Our results reveal for the first time that lysosome-related organelles in intestinal cells are sites for storage of cholesterol in C. elegans.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4348091 | PMC |
http://dx.doi.org/10.1002/anie.201406029 | DOI Listing |
Sci Adv
January 2025
Cellular Homeostasis and Recycling, Danish Cancer Institute, DK-2100 Copenhagen, Denmark.
Nutrient deprivation is a major trigger of autophagy, a conserved quality control and recycling process essential for cellular and tissue homeostasis. In a high-content image-based screen of the human ubiquitome, we here identify the E3 ligase Pellino 3 (PELI3) as a crucial regulator of starvation-induced autophagy. Mechanistically, PELI3 localizes to autophagic membranes, where it interacts with the ATG8 proteins through an LC3-interacting region (LIR).
View Article and Find Full Text PDFJ Anat
January 2025
Department of Anatomy and Regenerative Medicine, Tissue Engineering Research Group (TERG) Royal College of Surgeons Ireland (RCSI) University of Medicine and Health Sciences, Dublin, Ireland.
According to the World Health Organization (WHO) musculoskeletal conditions are a leading contributor to disability worldwide. This fact is often somewhat overlooked, since musculoskeletal conditions are less likely to be associated with mortality. Nonetheless, treatments, therapies and management of these conditions are extremely costly to national healthcare systems.
View Article and Find Full Text PDFAdv Sci (Weinh)
January 2025
Discovery Biology, Discovery Sciences, BioPharmaceuticals R&D, AstraZeneca, Pepparedsleden 1, Mölndal, 43150, Sweden.
Targeted delivery of therapeutic agents is a persistent challenge in modern medicine. Recent efforts in this area have highlighted the utility of extracellular vesicles (EVs) as drug carriers, given that they naturally occur in bloodstream and tissues, and can be loaded with a wide range of therapeutic molecules. However, biodistribution and tissue tropism of EVs remain difficult to study systematically.
View Article and Find Full Text PDFBreast Cancer (Auckl)
January 2025
Department of Pharmacy, Yonsei University, Incheon, South Korea.
Background: Ferroptosis is a recently studied form of programmed cell death characterized by lipid peroxides accumulation in the cells. This process occurs when a cell's antioxidant capacity is disturbed resulting in the inability of the cell to detoxify the toxic peroxides. Two major components that regulate ferroptosis are cysteine and iron.
View Article and Find Full Text PDFEur J Med Res
January 2025
Medical Imaging Key Laboratory of Sichuan Province, Department of Radiology, Affiliated Hospital of North Sichuan Medical College, 1# South Maoyuan Street, Nanchong, 637001, Sichuan, China.
Background And Aims: Previous studies have confirmed that alcohol can increase the sensitivity of the pancreas to stressors and exacerbate the severity of pancreatitis when excessive alcohol intake is combined with other causes. In the current work, this study attempted to explore how does alcohol regulate cerulein-induced acute pancreatitis, especially before inflammation occurs.
Methods: Proteomics was performed to analyze the differentially expressed proteins in pancreatic tissues from a rat model of pancreatitis.
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!