Autophagy is an evolutionarily conserved lysosomal degradation route for soluble components of the cytosol and organelles. There is great interest in identifying compounds that modulate autophagy because they may have applications in the treatment of major diseases including cancer and neurodegenerative disease. Hundeshagen and colleagues describe this month in BMC Biology a screening assay based on flow cytometry that makes it possible to track distinct steps in the autophagic process and thereby identify novel modulators of autophagy.
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http://dx.doi.org/10.1186/1741-7007-9-39 | DOI Listing |
Plant Physiol
January 2025
State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Science, Frontiers Science Center for Cell Responses, College of Life Sciences, Nankai University, Tianjin, 300071, China.
The endocytic and autophagic pathways play important roles in abiotic stress responses and maintaining cellular homeostasis in plants. Asparagine Rich Proteins (NRPs) are plant-specific stress-responsive proteins that are involved in many abiotic stress-related signaling pathways. We previously demonstrated that NRP promotes PIN FORMED 2 (PIN2) vacuolar degradation to maintain PIN2 homeostasis under abscisic acid (ABA) treatment in Arabidopsis (Arabidopsis thaliana).
View Article and Find Full Text PDFSci Adv
January 2025
Institute of Molecular Immunology, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China.
S-Palmitoylation is a reversible post-translational modification involving saturated fatty acid palmitate-to-cysteine linkage in the protein, which guides many aspects of macrophage physiology in health and disease. However, the precise role and underlying mechanisms of palmitoylation in infection of macrophages remain elusive. Here, we found that infection induced the expression of zinc-finger DHHC domain-type palmitoyl-transferases (ZDHHCs), particularly ZDHHC2, in mouse macrophages.
View Article and Find Full Text PDFActa Physiol (Oxf)
February 2025
Zoophysiology, Department of Biology, Aarhus University, Aarhus C, Denmark.
Aim: Snakes exhibit remarkable physiological shifts when their large meals induce robust postprandial growth after prolonged fasting. To understand the regulatory mechanisms underlying this rapid metabolic transition, we examined the regulation of protein synthesis in pythons, focusing on processes driving early postprandial tissue remodeling and growth.
Methods: Using the SUnSET method with puromycin labeling, we measured in vivo protein synthesis in fasting and digesting snakes at multiple post-feeding intervals.
Nephrology (Carlton)
February 2025
Department of Quality Management, Tianjin Blood Center, Tianjin, China.
Aim: To study the effect and elucidate the underlying mechanisms of VDAC1-ΔC on autophagy in renal tubular epithelial cells injured by hypoxia/reoxygenation.
Methods: C57/BL6 mice were randomly divided into groups: sham operation group, IRI 1d group and IRI 2d group. The inner canthal blood of mice was collected to detect the levels of serum creatinine and urea nitrogen and kidney tissues were sampled, and sections were stained with Periodic acid-Schiff for morphological evaluation.
Biogerontology
January 2025
Department of Veterinary Medicine, College of Veterinary Medicine, Chungnam National University, 220 Gung-Dong, Yusung-Gu, Daejeon, 34134, Republic of Korea.
Benign prostatic hyperplasia (BPH), characterized as a chronic disease with unregulated enlargement of prostatic gland, is commonly observed in elderly men leading to lower urinary tract dysfunction. Sestrin2 plays a role in the maintenance of cellular homeostasis and protects organisms from various stimuli. The exact role of Sestrin2 in the etiology of BPH, a common age-related disease, remains unknown.
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