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PgpP is a broadly conserved phosphatase required for phosphatidylglycerol lipid synthesis.
Proc Natl Acad Sci U S A
February 2025
Department of Microbiology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115.
The cytoplasmic membrane of bacteria is composed of a phospholipid bilayer made up of a diverse set of lipids. Phosphatidylglycerol (PG) is one of the principal constituents and its production is essential for growth in many bacteria. All the enzymes required for PG biogenesis in have been identified and characterized decades ago.
View Article and Find Full Text PDFThe Formation and Features of Massive Vacuole Induced by Nutrient Deficiency in Human Embryonic Kidney Cells.
Front Biosci (Landmark Ed)
January 2025
Department of Cardiovascular Medicine, Binzhou Medical University Hospital, 256603 Binzhou, Shandong, China.
Background: Cellular vacuolization is a commonly observed phenomenon under physiological and pathological conditions. However, the mechanisms underlying vacuole formation remain largely unresolved.
Methods: LysoTracker Deep Red probes and Enhanced Green Fluorescent Protein-tagged light chain 3B (LC3B) plasmids were employed to differentiate the types of massive vacuoles.
A Structural Effect of the Antioxidant Curcuminoids on the Aβ(1-42) Amyloid Peptide.
Antioxidants (Basel)
January 2025
Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy.
Investigating amyloid-β (Aβ) peptides in solution is essential during the initial stages of developing lead compounds that can influence Aβ fibrillation while the peptide is still in a soluble state. The tendency of the Aβ(1-42) peptide to misfold in solution, correlated to the aetiology of Alzheimer's disease (AD), is one of the main hindrances to characterising its aggregation kinetics in a cell-mimetic environment. Moreover, the Aβ(1-42) aggregation triggers the unfolded protein response (UPR) in the endoplasmic reticulum (ER), leading to cellular dysfunction and multiple cell death modalities, exacerbated by reactive oxygen species (ROS), which damage cellular components and trigger inflammation.
View Article and Find Full Text PDFBacterial extracellular vesicles in the initiation, progression and treatment of atherosclerosis.
Gut Microbes
December 2025
Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China.
Atherosclerosis is the primary cause of cardiovascular and cerebrovascular diseases. However, current anti-atherosclerosis drugs have shown conflicting therapeutic outcomes, thereby spurring the search for novel and effective treatments. Recent research indicates the crucial involvement of oral and gastrointestinal microbiota in atherosclerosis.
View Article and Find Full Text PDFEffects of Lipid Headgroups on the Mechanical Properties and In Vitro Cellular Internalization of Liposomes.
Langmuir
January 2025
Department of Chemical Engineering, Northeastern University, Boston, Massachusetts 02115, United States.
We performed all-atom and coarse-grained simulations of lipid bilayer mixtures of the unsaturated lipid DOPC, with saturated lipids having the same 18-carbon acyl tails and different headgroups, to understand their mechanical properties. The secondary lipids were DSPG, DSPA, DSPS, DSPC, and DSPE. The DOPC:DSPG system with 65:35 molar ratio was the softest, with area compressibility modulus ∼ 22% smaller than the pure DOPC value.
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