ArticleBiomolecules2023
Imipramine Treatment Alters Sphingomyelin, Cholesterol, and Glycerophospholipid Metabolism in Isolated Macrophage Lysosomes.
Article in Biomolecules, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 15 citations in OpenAlex.
- The miR-214-3p/Biology · 2026Article
- Modest improvement of metabolic and behavioral deficits with long-term ambroxol treatment in a Pink1Acta pharmacologica Sinica · 2026Article
- Investigation of Intercellular Trafficking of Global Glycosylphosphatidylinositol-Anchored Proteins Using Cell Metabolic Engineering and Transwell Coculture.Angewandte Chemie (International ed. in English) · 2026Article
- Multi-Omics Reveals Dysregulation of the Endosome-Lysosome-Autophagy Axis and Immune-Inflammatory Imbalance in Elderly Sepsis.Clinical interventions in aging · 2026Article
- Navigating the Lipid Landscape: The Role of Fatty Acid Synthase in Neural Stem Cell Fate and Central Nervous System Function.Molecular neurobiology · 2025Review
- The differential toxicity of three different oxidized nickel compound nanoparticles and the effects of particle surface ligands in mouse alveolar macrophages.Toxicological sciences : an official journal of the Society of Toxicology · 2025Article
- Contribution of particle-induced lysosome membrane permeabilization to NLRP3 inflammasome activation and mitochondrial ROS production.Toxicological sciences : an official journal of the Society of Toxicology · 2025Article
- Lipidomic signatures of tracheal aspirate diagnostic biomarkers in preterm infants with bronchopulmonary dysplasia.European journal of pediatrics · 2025Article
- Lysosome dysfunction alters intestinal morphology and lipid metabolism in early neonatal piglets.BMC veterinary research · 2025Article
- Imipramine-induced immunomodulation and intracellular growth inhibition duringFrontiers in veterinary science · 2025Article
- Enhancing the Efficacy of Active Pharmaceutical Ingredients in Medicinal Plants through Nanoformulations: A Promising Field.Nanomaterials (Basel, Switzerland) · 2024Review
- Mass Spectrometry Imaging Combined with Sparse Autoencoder Method Reveals Altered Phosphorylcholine Distribution in Imipramine Treated Wild-Type Mice Brains.International journal of molecular sciences · 2024Article
Corrections and comments
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Authors and funding
5 authors at 3 institutions in 1 country.
Funding
Abstract
Lysosomes are degradative organelles that facilitate the removal and recycling of potentially cytotoxic materials and mediate a variety of other cellular processes, such as nutrient sensing, intracellular signaling, and lipid metabolism. Due to these central roles, lysosome dysfunction can lead to deleterious outcomes, including the accumulation of cytotoxic material, inflammation, and cell death. We previously reported that cationic amphiphilic drugs, such as imipramine, alter pH and lipid metabolism within macrophage lysosomes. Therefore, the ability for imipramine to induce changes to the lipid content of isolated macrophage lysosomes was investigated, focusing on sphingomyelin, cholesterol, and glycerophospholipid metabolism as these lipid classes have important roles in inflammation and disease. The lysosomes were isolated from control and imipramine-treated macrophages using density gradient ultracentrifugation, and mass spectrometry was used to measure the changes in their lipid composition. An unsupervised hierarchical cluster analysis revealed a clear differentiation between the imipramine-treated and control lysosomes. There was a significant overall increase in the abundance of specific lipids mostly composed of cholesterol esters, sphingomyelins, and phosphatidylcholines, while lysophosphatidylcholines and ceramides were overall decreased. These results support the conclusion that imipramine's ability to change the lysosomal pH inhibits multiple pH-sensitive enzymes in macrophage lysosomes.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.