1
|
Taha AY, Gaudioso Á, Moran-Garrido M, Camunas-Alberca SM, Bachiller-Hernández J, Sáiz J, Ledesma MD, Barbas C. Neurons regulate the esterification of bioactive lipid mediators in the brain of acid sphingomyelinase deficient mice. Prog Neuropsychopharmacol Biol Psychiatry 2024; 129:110896. [PMID: 37956788 DOI: 10.1016/j.pnpbp.2023.110896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 10/29/2023] [Accepted: 11/10/2023] [Indexed: 11/15/2023]
Abstract
Acid sphingomyelinase deficiency is a neurodegenerative lysosomal storage disorder caused by mutations in the sphingomyelin-degrading enzyme acid sphingomyelinase (ASM) gene. Upregulated neuroinflammation has been well-characterized in an ASM knockout mouse model of acid sphingomyelinase deficiency disease, but lipid mediator pathways involved in 'mediating' inflammation and inflammation-resolution have yet to be characterized. In this study, we 1) measured free (bioactive) and esterified (inactive) lipid mediators involved in inflammation and inflammation resolution in cerebellum and neuronal cultures of ASM knockout (ASMko) mice and wildtype (WT) controls, and 2) quantified the esterification of labeled pro-resolving free d11-14(15)-epoxyeicosatrienoic acid in cultured neurons from ASMko and WT mice. We found elevated concentrations of esterified pro-resolving lipid mediators and hydroxyeicosatrienoic acids typically destined for pro-resolving lipid mediator synthesis (e.g. lipoxins) in the cerebellum and neurons of ASMko mice compared to controls. Free d11-14(15)-epoxyeicosatrienoic acid esterification within neurons of ASMko mice was significantly elevated compared to WT. Our findings show evidence of increased inactivation of free pro-resolving lipid mediators through esterification in ASMko mice, suggesting impaired resolution as a new pathway underlying ASM deficiency pathogenesis.
Collapse
Affiliation(s)
- Ameer Y Taha
- Department of Food Science and Technology, College of Agriculture and Environmental Sciences, University of California, 95616 Davis, CA, USA; West Coast Metabolomics Center, Genome Center, University of California, 95616 Davis, CA, USA; Center for Neuroscience, University of California, Davis, One Shields Avenue, 95616 Davis, CA, USA
| | - Ángel Gaudioso
- Centro de Biología Molecular Severo Ochoa (CSIC-UAM), 28049 Madrid, Spain
| | - Maria Moran-Garrido
- Centre for Metabolomics and Bioanalysis (CEMBIO), Department of Chemistry and Biochemistry, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, 28660, Boadilla del Monte, Madrid, Spain
| | - Sandra M Camunas-Alberca
- Centre for Metabolomics and Bioanalysis (CEMBIO), Department of Chemistry and Biochemistry, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, 28660, Boadilla del Monte, Madrid, Spain
| | - Jaime Bachiller-Hernández
- Centre for Metabolomics and Bioanalysis (CEMBIO), Department of Chemistry and Biochemistry, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, 28660, Boadilla del Monte, Madrid, Spain
| | - Jorge Sáiz
- Centre for Metabolomics and Bioanalysis (CEMBIO), Department of Chemistry and Biochemistry, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, 28660, Boadilla del Monte, Madrid, Spain
| | | | - Coral Barbas
- Centre for Metabolomics and Bioanalysis (CEMBIO), Department of Chemistry and Biochemistry, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, 28660, Boadilla del Monte, Madrid, Spain.
| |
Collapse
|
2
|
Huang YN, Chiang SL, Huang JY, Lu WL, Bau DAT, Su PH, Wang CH. The Long-term Lung and Respiratory Outcomes of Acid Sphingomyelinase Deficiency: A 10- and 20-year Follow-up Study. In Vivo 2024; 38:437-444. [PMID: 38148059 PMCID: PMC10756436 DOI: 10.21873/invivo.13457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/17/2023] [Accepted: 09/18/2023] [Indexed: 12/28/2023]
Abstract
BACKGROUND/AIM Acid sphingomyelinase deficiency (ASMD) is a rare lysosomal storage disorder characterized by sphingomyelin accumulation causing progressive lung disease, respiratory failure, and death. PATIENTS AND METHODS This retrospective observational study used the TriNetX database of electronic health records for 15,108 patients with ASMD from 2000-2020. After exclusions, 8,980 individuals were followed for 10 or 20 years. Outcomes included incidence and prevalence of respiratory disorders. Associations of age, sex and race were assessed. RESULTS Nearly all respiratory outcomes increased significantly over 20 versus 10 years. Other respiratory disorders, specified respiratory disorders and secondary pulmonary hypertension exhibited the greatest increases, reflecting progressive lung damage in ASMD. While outcomes were poor overall, older age, male sex, and racial minority status associated with greater risks, indicating differences in disease progression or care. CONCLUSION This study confirms the progressive nature of ASMD and need for close monitoring and treatment of pulmonary complications to reduce long-term morbidity and mortality. Genetic testing enabling diagnosis even for milder, adult-onset forms is critical to optimize outcomes.
Collapse
Affiliation(s)
- Yu-Nan Huang
- Department of Pediatrics, Chung Shan Medical University Hospital, Taichung, Taiwan, R.O.C
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan, R.O.C
| | - Shang-Lun Chiang
- Department of Medical Laboratory Science, College of Medical Science and Technology, I-Shou University, Kaohsiung, Taiwan, R.O.C
| | - Jing-Yang Huang
- Center for Health Data Science, Chung Shan Medical University Hospital, Taichung, Taiwan, R.O.C
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan, R.O.C
| | - Wen-Li Lu
- Department of Clinical Pathology, Chi Mei Medical Center, Tainan, Taiwan, R.O.C
| | - DA-Tian Bau
- Terry Fox Cancer Research Laboratory, Department of Medical Research, China Medical University Hospital, Taichung, Taiwan, R.O.C
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan, R.O.C
| | - Pen-Hua Su
- Department of Pediatrics, Chung Shan Medical University Hospital, Taichung, Taiwan, R.O.C.;
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan, R.O.C
| | - Chung-Hsing Wang
- Department of Pediatrics, Chung Shan Medical University Hospital, Taichung, Taiwan, R.O.C.;
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan, R.O.C
- Division of Genetics and Metabolism, Children's Hospital of China Medical University, Taichung, Taiwan, R.O.C
- School of Medicine, China Medical University, Taichung, Taiwan, R.O.C
| |
Collapse
|
3
|
Gaudioso Á, Moreno-Huguet P, Casas J, Schuchman EH, Ledesma MD. Modulation of Dietary Choline Uptake in a Mouse Model of Acid Sphingomyelinase Deficiency. Int J Mol Sci 2023; 24:ijms24119756. [PMID: 37298714 DOI: 10.3390/ijms24119756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 05/29/2023] [Accepted: 06/03/2023] [Indexed: 06/12/2023] Open
Abstract
Acid sphingomyelinase deficiency (ASMD) is a lysosomal storage disorder caused by mutations in the gene-encoding acid sphingomyelinase (ASM). ASMD impacts peripheral organs in all patients, including the liver and spleen. The infantile and chronic neurovisceral forms of the disease also lead to neuroinflammation and neurodegeneration for which there is no effective treatment. Cellular accumulation of sphingomyelin (SM) is a pathological hallmark in all tissues. SM is the only sphingolipid comprised of a phosphocholine group linked to ceramide. Choline is an essential nutrient that must be obtained from the diet and its deficiency promotes fatty liver disease in a process dependent on ASM activity. We thus hypothesized that choline deprivation could reduce SM production and have beneficial effects in ASMD. Using acid sphingomyelinase knock-out (ASMko) mice, which mimic neurovisceral ASMD, we have assessed the safety of a choline-free diet and its effects on liver and brain pathological features such as altered sphingolipid and glycerophospholipid composition, inflammation and neurodegeneration. We found that the choline-free diet was safe in our experimental conditions and reduced activation of macrophages and microglia in the liver and brain, respectively. However, there was no significant impact on sphingolipid levels and neurodegeneration was not prevented, arguing against the potential of this nutritional strategy to assist in the management of neurovisceral ASMD patients.
Collapse
Affiliation(s)
- Ángel Gaudioso
- Centro Biologia Molecular Severo Ochoa (CSIC-UAM), 28049 Madrid, Spain
| | | | | | | | | |
Collapse
|