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Sarmento MJ, Llorente A, Petan T, Khnykin D, Popa I, Nikolac Perkovic M, Konjevod M, Jaganjac M. The expanding organelle lipidomes: current knowledge and challenges. Cell Mol Life Sci 2023; 80:237. [PMID: 37530856 PMCID: PMC10397142 DOI: 10.1007/s00018-023-04889-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 06/13/2023] [Accepted: 07/19/2023] [Indexed: 08/03/2023]
Abstract
Lipids in cell membranes and subcellular compartments play essential roles in numerous cellular processes, such as energy production, cell signaling and inflammation. A specific organelle lipidome is characterized by lipid synthesis and metabolism, intracellular trafficking, and lipid homeostasis in the organelle. Over the years, considerable effort has been directed to the identification of the lipid fingerprints of cellular organelles. However, these fingerprints are not fully characterized due to the large variety and structural complexity of lipids and the great variability in the abundance of different lipid species. The process becomes even more challenging when considering that the lipidome differs in health and disease contexts. This review summarizes the information available on the lipid composition of mammalian cell organelles, particularly the lipidome of the nucleus, mitochondrion, endoplasmic reticulum, Golgi apparatus, plasma membrane and organelles in the endocytic pathway. The lipid compositions of extracellular vesicles and lamellar bodies are also described. In addition, several examples of subcellular lipidome dynamics under physiological and pathological conditions are presented. Finally, challenges in mapping organelle lipidomes are discussed.
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Affiliation(s)
- Maria J Sarmento
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, 1649-028, Lisbon, Portugal
| | - Alicia Llorente
- Department of Molecular Cell Biology, Institute for Cancer Research, Oslo University Hospital, 0379, Oslo, Norway
- Department for Mechanical, Electronics and Chemical Engineering, Oslo Metropolitan University, 0167, Oslo, Norway
- Faculty of Medicine, Centre for Cancer Cell Reprogramming, University of Oslo, Montebello, 0379, Oslo, Norway
| | - Toni Petan
- Department of Molecular and Biomedical Sciences, Jožef Stefan Institute, Ljubljana, Slovenia
| | - Denis Khnykin
- Department of Pathology, Oslo University Hospital, Oslo, Norway
| | - Iuliana Popa
- Pharmacy Department, Bâtiment Henri Moissan, University Paris-Saclay, 17 Avenue des Sciences, 91400, Orsay, France
| | | | - Marcela Konjevod
- Division of Molecular Medicine, Ruder Boskovic Institute, 10000, Zagreb, Croatia
| | - Morana Jaganjac
- Division of Molecular Medicine, Ruder Boskovic Institute, 10000, Zagreb, Croatia.
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2
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Moorhouse AJ, Loats AE, Medler KF, Roberts SG. The BASP1 transcriptional corepressor modifies chromatin through lipid-dependent and lipid-independent mechanisms. iScience 2022; 25:104796. [PMID: 35982799 PMCID: PMC9379585 DOI: 10.1016/j.isci.2022.104796] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 03/22/2022] [Accepted: 07/14/2022] [Indexed: 12/01/2022] Open
Abstract
The transcriptional corepressor BASP1 requires N-terminal myristoylation for its activity and functions through interactions with nuclear lipids. Here we determine the role of BASP1 lipidation in histone modification and the modulation of chromatin accessibility. We find that the removal of the active histone modifications H3K9ac and H3K4me3 by BASP1 requires the N-terminal myristoylation of BASP1. In contrast, the placement of the repressive histone modification, H3K27me3, by BASP1 does not require BASP1 lipidation. RNA-seq and ATAC-seq analysis finds that BASP1 regulates the activity of multiple transcription factors and induces extensive changes in chromatin accessibility. We find that ∼50% of BASP1 target genes show lipidation-dependent chromatin compaction and transcriptional repression. Our results suggest that BASP1 elicits both lipid-dependent and lipid-independent functions in histone modification and transcriptional repression. In accordance with this, we find that the tumor suppressor activity of BASP1 is also partially dependent on its myristoylation.
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Affiliation(s)
| | - Amy E. Loats
- School of Cellular and Molecular Medicine, University of Bristol, Bristol BS8 1TD, UK
| | - Kathryn F. Medler
- Department of Biological Sciences, University at Buffalo, Buffalo, NY 14260, USA
| | - Stefan G.E. Roberts
- School of Cellular and Molecular Medicine, University of Bristol, Bristol BS8 1TD, UK
- Department of Biological Sciences, University at Buffalo, Buffalo, NY 14260, USA
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3
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Albi E, Alessenko AV. Nuclear sphingomyelin in neurodegenerative diseases. Neural Regen Res 2021; 16:2028-2029. [PMID: 33642390 PMCID: PMC8343301 DOI: 10.4103/1673-5374.308087] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Revised: 11/13/2020] [Accepted: 12/18/2020] [Indexed: 12/02/2022] Open
Affiliation(s)
- Elisabetta Albi
- Department of Pharmaceutical Science, University of Perugia, Perugia, Italy
| | - Alice V. Alessenko
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, Russia
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Signorelli P, Conte C, Albi E. The Multiple Roles of Sphingomyelin in Parkinson's Disease. Biomolecules 2021; 11:biom11091311. [PMID: 34572524 PMCID: PMC8469734 DOI: 10.3390/biom11091311] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 08/26/2021] [Accepted: 09/03/2021] [Indexed: 01/07/2023] Open
Abstract
Advances over the past decade have improved our understanding of the role of sphingolipid in the onset and progression of Parkinson's disease. Much attention has been paid to ceramide derived molecules, especially glucocerebroside, and little on sphingomyelin, a critical molecule for brain physiopathology. Sphingomyelin has been proposed to be involved in PD due to its presence in the myelin sheath and for its role in nerve impulse transmission, in presynaptic plasticity, and in neurotransmitter receptor localization. The analysis of sphingomyelin-metabolizing enzymes, the development of specific inhibitors, and advanced mass spectrometry have all provided insight into the signaling mechanisms of sphingomyelin and its implications in Parkinson's disease. This review describes in vitro and in vivo studies with often conflicting results. We focus on the synthesis and degradation enzymes of sphingomyelin, highlighting the genetic risks and the molecular alterations associated with Parkinson's disease.
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Affiliation(s)
- Paola Signorelli
- Biochemistry and Molecular Biology Laboratory, Health Sciences Department, University of Milan, 20142 Milan, Italy;
| | - Carmela Conte
- Department of Pharmaceutical Sciences, University of Perugia, 06126 Perugia, Italy;
| | - Elisabetta Albi
- Department of Pharmaceutical Sciences, University of Perugia, 06126 Perugia, Italy;
- Correspondence:
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5
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Abstract
Cholesterol is present within the cell nucleus, where it associates with chromatin, but to date, a direct role for cholesterol in nuclear processes has not been identified. We demonstrate that the transcriptional repressor brain acid soluble protein 1 (BASP1) directly interacts with cholesterol within the cell nucleus through a consensus cholesterol interaction motif. BASP1 recruits cholesterol to the promoter region of target genes, where it is required to mediate chromatin remodeling and transcriptional repression. Our work demonstrates that cholesterol plays a direct role in transcriptional regulation. Lipids are present within the cell nucleus, where they engage with factors involved in gene regulation. Cholesterol associates with chromatin in vivo and stimulates nucleosome packing in vitro, but its effects on specific transcriptional responses are not clear. Here, we show that the lipidated Wilms tumor 1 (WT1) transcriptional corepressor, brain acid soluble protein 1 (BASP1), interacts with cholesterol in the cell nucleus through a conserved cholesterol interaction motif. We demonstrate that BASP1 directly recruits cholesterol to the promoter region of WT1 target genes. Mutation of BASP1 to ablate its interaction with cholesterol or the treatment of cells with drugs that block cholesterol biosynthesis inhibits the transcriptional repressor function of BASP1. We find that the BASP1–cholesterol interaction is required for BASP1-dependent chromatin remodeling and the direction of transcription programs that control cell differentiation. Our study uncovers a mechanism for gene-specific targeting of cholesterol where it is required to mediate transcriptional repression.
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Pan Y, Gao F, Zhao S, Han J, Chen F. Role of the SphK-S1P-S1PRs pathway in invasion of the nervous system by SARS-CoV-2 infection. Clin Exp Pharmacol Physiol 2021; 48:637-650. [PMID: 33565127 PMCID: PMC8014301 DOI: 10.1111/1440-1681.13483] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 01/29/2021] [Accepted: 02/02/2021] [Indexed: 01/08/2023]
Abstract
Global spread of the severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) is still ongoing. Before an effective vaccine is available, the development of potential treatments for resultant coronavirus disease 2019 (COVID‐19) is crucial. One of the disease hallmarks is hyper‐inflammatory responses, which usually leads to a severe lung disease. Patients with COVID‐19 also frequently suffer from neurological symptoms such as acute diffuse encephalomyelitis, brain injury and psychiatric complications. The metabolic pathway of sphingosine‐1‐phosphate (S1P) is a dynamic regulator of various cell types and disease processes, including the nervous system. It has been demonstrated that S1P and its metabolic enzymes, regulating neuroinflammation and neurogenesis, exhibit important functions during viral infection. S1P receptor 1 (S1PR1) analogues including AAL‐R and RP‐002 inhibit pathophysiological responses at the early stage of H1N1 virus infection and then play a protective role. Fingolimod (FTY720) is an S1P receptor modulator and is being tested for treating COVID‐19. Our review provides an overview of SARS‐CoV‐2 infection and critical role of the SphK‐S1P‐SIPR pathway in invasion of SARS‐CoV‐2 infection, particularly in the central nervous system (CNS). This may help design therapeutic strategies based on the S1P‐mediated signal transduction, and the adjuvant therapeutic effects of S1P analogues to limit or prevent the interaction between the host and SARS‐CoV‐2, block the spread of the SARS‐CoV‐2, and consequently treat related complications in the CNS.
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Affiliation(s)
- Yuehai Pan
- Department of Hand and Foot Surgery, The Affiliated Hospital of Qingdao University, Shangdong, China
| | - Fei Gao
- Department of Hand and Foot Surgery, The Affiliated Hospital of Qingdao University, Shangdong, China
| | - Shuai Zhao
- Department of Anesthesiology, Bonn University, Bonn, Germany
| | - Jinming Han
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Fan Chen
- Department of Neurosurgery, The Affiliated Hospital of Qingdao University, Shangdong, China
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Cholesterol and Sphingolipid Enriched Lipid Rafts as Therapeutic Targets in Cancer. Int J Mol Sci 2021; 22:ijms22020726. [PMID: 33450869 PMCID: PMC7828315 DOI: 10.3390/ijms22020726] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 01/09/2021] [Accepted: 01/11/2021] [Indexed: 02/07/2023] Open
Abstract
Lipid rafts are critical cell membrane lipid platforms enriched in sphingolipid and cholesterol content involved in diverse cellular processes. They have been proposed to influence membrane properties and to accommodate receptors within themselves by facilitating their interaction with ligands. Over the past decade, technical advances have improved our understanding of lipid rafts as bioactive structures. In this review, we will cover the more recent findings about cholesterol, sphingolipids and lipid rafts located in cellular and nuclear membranes in cancer. Collectively, the data provide insights on the role of lipid rafts as biomolecular targets in cancer with good perspectives for the development of innovative therapeutic strategies.
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Dei Cas M, Paroni R, Signorelli P, Mirarchi A, Cerquiglini L, Troiani S, Cataldi S, Codini M, Beccari T, Ghidoni R, Albi E. Human breast milk as source of sphingolipids for newborns: comparison with infant formulas and commercial cow's milk. J Transl Med 2020; 18:481. [PMID: 33317546 PMCID: PMC7734711 DOI: 10.1186/s12967-020-02641-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 11/27/2020] [Indexed: 12/12/2022] Open
Abstract
Background In the past two decades, sphingolipids have become increasingly appreciated as bioactive molecules playing important roles in a wide array of pathophysiology mechanisms. Despite advances in the field, sphingolipids as nutrients remain little explored. Today the research is starting to move towards the study of the sphingomyelin content in human breast milk, recommended for feeding infants. Methods In the present study, we performed a lipidomic analysis in human breast milk in relation with maternal diet during pregnancy, in infant formulas, and in commercial whole and semi-skimmed milks for adults. Mediterranean, carnivorous and vegetarian diets were considered. Results The results showed that total sphingomyelin, ceramide and dihydroceramide species are independent on the diet. Interestingly, the milk sphingolipid composition is species-specific. In fact, infant formulas and commercial milks for adults have a lower level of total sphingomyelin and ceramide content than human breast milk with very different composition of each sphingolipid species. Conclusions We conclude that human breast milk is a better source of sphingolipids than infant formulas for baby nutrition with potential implications for the brain development and cognitive functions.
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Affiliation(s)
- Michele Dei Cas
- Department of Health Sciences, Università degli Studi di Milano, Milan, 20142, Italy
| | - Rita Paroni
- Department of Health Sciences, Università degli Studi di Milano, Milan, 20142, Italy
| | - Paola Signorelli
- Department of Health Sciences, Università degli Studi di Milano, Milan, 20142, Italy
| | - Alessandra Mirarchi
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, 06126, Italy
| | - Laura Cerquiglini
- Struttura Complessa di Neonatologia e Terapia Intensiva Neonatale- Azienda Ospedaliera Santa Maria della Misericordia, Perugia, 06126, Italy
| | - Stefania Troiani
- Struttura Complessa di Neonatologia e Terapia Intensiva Neonatale- Azienda Ospedaliera Santa Maria della Misericordia, Perugia, 06126, Italy
| | - Samuela Cataldi
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, 06126, Italy
| | - Michela Codini
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, 06126, Italy
| | - Tommaso Beccari
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, 06126, Italy
| | - Riccardo Ghidoni
- Aldo Ravelli Center for Neurotechnology and Experimental Brain Therapeutics, Department of Health Sciences, Università degli Studi di Milano, Milan, 20142, Italy
| | - Elisabetta Albi
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, 06126, Italy.
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Meacci E, Garcia-Gil M, Pierucci F. SARS-CoV-2 Infection: A Role for S1P/S1P Receptor Signaling in the Nervous System? Int J Mol Sci 2020; 21:E6773. [PMID: 32942748 PMCID: PMC7556035 DOI: 10.3390/ijms21186773] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 09/07/2020] [Accepted: 09/11/2020] [Indexed: 02/07/2023] Open
Abstract
The recent coronavirus disease (COVID-19) is still spreading worldwide. The severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), the virus responsible for COVID-19, binds to its receptor angiotensin-converting enzyme 2 (ACE2), and replicates within the cells of the nasal cavity, then spreads along the airway tracts, causing mild clinical manifestations, and, in a majority of patients, a persisting loss of smell. In some individuals, SARS-CoV-2 reaches and infects several organs, including the lung, leading to severe pulmonary disease. SARS-CoV-2 induces neurological symptoms, likely contributing to morbidity and mortality through unknown mechanisms. Sphingosine 1-phosphate (S1P) is a bioactive sphingolipid with pleiotropic properties and functions in many tissues, including the nervous system. S1P regulates neurogenesis and inflammation and it is implicated in multiple sclerosis (MS). Notably, Fingolimod (FTY720), a modulator of S1P receptors, has been approved for the treatment of MS and is being tested for COVID-19. Here, we discuss the putative role of S1P on viral infection and in the modulation of inflammation and survival in the stem cell niche of the olfactory epithelium. This could help to design therapeutic strategies based on S1P-mediated signaling to limit or overcome the host-virus interaction, virus propagation and the pathogenesis and complications involving the nervous system.
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Affiliation(s)
- Elisabetta Meacci
- Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Firenze, Viale GB Morgagni 50, 50134 Firenze, Italy;
- Interuniversity Institute of Myology, University of Firenze, 50134 Firenze, Italy
| | - Mercedes Garcia-Gil
- Unit of Physiology, Department of Biology, University of Pisa, via S. Zeno 31, 56127 Pisa, Italy;
- Interdepartmental Research Center “Nutraceuticals and Food for Health”, University of Pisa, 56127 Pisa, Italy
| | - Federica Pierucci
- Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Firenze, Viale GB Morgagni 50, 50134 Firenze, Italy;
- Interuniversity Institute of Myology, University of Firenze, 50134 Firenze, Italy
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Figlewicz DP, Witkamp RF. FATTY ACIDS AS CELL SIGNALS IN INGESTIVE BEHAVIORS. Physiol Behav 2020; 223:112985. [DOI: 10.1016/j.physbeh.2020.112985] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 05/04/2020] [Accepted: 05/23/2020] [Indexed: 12/17/2022]
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S1P/S1P Receptor Signaling in Neuromuscolar Disorders. Int J Mol Sci 2019; 20:ijms20246364. [PMID: 31861214 PMCID: PMC6941007 DOI: 10.3390/ijms20246364] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 12/06/2019] [Accepted: 12/13/2019] [Indexed: 12/13/2022] Open
Abstract
The bioactive sphingolipid metabolite, sphingosine 1-phosphate (S1P), and the signaling pathways triggered by its binding to specific G protein-coupled receptors play a critical regulatory role in many pathophysiological processes, including skeletal muscle and nervous system degeneration. The signaling transduced by S1P binding appears to be much more complex than previously thought, with important implications for clinical applications and for personalized medicine. In particular, the understanding of S1P/S1P receptor signaling functions in specific compartmentalized locations of the cell is worthy of being better investigated, because in various circumstances it might be crucial for the development or/and the progression of neuromuscular diseases, such as Charcot-Marie-Tooth disease, myasthenia gravis, and Duchenne muscular dystrophy.
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12
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Membrane Lipid Composition: Effect on Membrane and Organelle Structure, Function and Compartmentalization and Therapeutic Avenues. Int J Mol Sci 2019; 20:ijms20092167. [PMID: 31052427 PMCID: PMC6540057 DOI: 10.3390/ijms20092167] [Citation(s) in RCA: 400] [Impact Index Per Article: 80.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 04/26/2019] [Accepted: 04/30/2019] [Indexed: 12/17/2022] Open
Abstract
Biological membranes are key elements for the maintenance of cell architecture and physiology. Beyond a pure barrier separating the inner space of the cell from the outer, the plasma membrane is a scaffold and player in cell-to-cell communication and the initiation of intracellular signals among other functions. Critical to this function is the plasma membrane compartmentalization in lipid microdomains that control the localization and productive interactions of proteins involved in cell signal propagation. In addition, cells are divided into compartments limited by other membranes whose integrity and homeostasis are finely controlled, and which determine the identity and function of the different organelles. Here, we review current knowledge on membrane lipid composition in the plasma membrane and endomembrane compartments, emphasizing its role in sustaining organelle structure and function. The correct composition and structure of cell membranes define key pathophysiological aspects of cells. Therefore, we explore the therapeutic potential of manipulating membrane lipid composition with approaches like membrane lipid therapy, aiming to normalize cell functions through the modification of membrane lipid bilayers.
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Abstract
This review provides an overview on components of the sphingolipid superfamily, on their localization and metabolism. Information about the sphingolipid biological activity in cell physiopathology is given. Recent studies highlight the role of sphingolipids in inflammatory process. We summarize the emerging data that support the different roles of the sphingolipid members in specific phases of inflammation: (1) migration of immune cells, (2) recognition of exogenous agents, and (3) activation/differentiation of immune cells.
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Neutral Sphingomyelinase Behaviour in Hippocampus Neuroinflammation of MPTP-Induced Mouse Model of Parkinson's Disease and in Embryonic Hippocampal Cells. Mediators Inflamm 2017; 2017:2470950. [PMID: 29343884 PMCID: PMC5733979 DOI: 10.1155/2017/2470950] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 09/16/2017] [Accepted: 09/26/2017] [Indexed: 01/31/2023] Open
Abstract
Neutral sphingomyelinase is known to be implicated in growth arrest, differentiation, proliferation, and apoptosis. Although previous studies have reported the involvement of neutral sphingomyelinase in hippocampus physiopathology, its behavior in the hippocampus during Parkinson's disease remains undetected. In this study, we show an upregulation of inducible nitric oxide synthase and a downregulation of neutral sphingomyelinase in the hippocampus of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine- (MPTP-) induced mouse model of Parkinson's disease. Moreover, the stimulation of neutral sphingomyelinase activity with vitamin 1,25-dihydroxyvitamin D3 reduces specifically saturated fatty acid sphingomyelin by making sphingomyelin a less rigid molecule that might influence neurite plasticity. The possible biological relevance of the increase of neutral sphingomyelinase in Parkinson's disease is discussed.
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Sviridov D, Mukhamedova N. Cholesterol: a dark horse in signalling race. Curr Opin Lipidol 2017; 28:385-386. [PMID: 28700381 DOI: 10.1097/mol.0000000000000435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Dmitri Sviridov
- Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
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16
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Hamann BL, Blind RD. Nuclear phosphoinositide regulation of chromatin. J Cell Physiol 2017; 233:107-123. [PMID: 28256711 DOI: 10.1002/jcp.25886] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 03/01/2017] [Indexed: 12/26/2022]
Abstract
Phospholipid signaling has clear connections to a wide array of cellular processes, particularly in gene expression and in controlling the chromatin biology of cells. However, most of the work elucidating how phospholipid signaling pathways contribute to cellular physiology have studied cytoplasmic membranes, while relatively little attention has been paid to the role of phospholipid signaling in the nucleus. Recent work from several labs has shown that nuclear phospholipid signaling can have important roles that are specific to this cellular compartment. This review focuses on the nuclear phospholipid functions and the activities of phospholipid signaling enzymes that regulate metazoan chromatin and gene expression. In particular, we highlight the roles that nuclear phosphoinositides play in several nuclear-driven physiological processes, such as differentiation, proliferation, and gene expression. Taken together, the recent discovery of several specifically nuclear phospholipid functions could have dramatic impact on our understanding of the fundamental mechanisms that enable tight control of cellular physiology.
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Affiliation(s)
- Bree L Hamann
- Division of Diabetes Endocrinology and Metabolism, Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Raymond D Blind
- Division of Diabetes Endocrinology and Metabolism, Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee.,Departments of Medicine, Biochemistry and Pharmacology, Division of Diabetes Endocrinology and Metabolism, The Vanderbilt Diabetes Research and Training Center and the Vanderbilt-Ingram Cancer Center, Nashville, Tennessee
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