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Lenoir G, D'Ambrosio JM, Dieudonné T, Čopič A. Transport Pathways That Contribute to the Cellular Distribution of Phosphatidylserine. Front Cell Dev Biol 2021; 9:737907. [PMID: 34540851 PMCID: PMC8440936 DOI: 10.3389/fcell.2021.737907] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 08/10/2021] [Indexed: 12/05/2022] Open
Abstract
Phosphatidylserine (PS) is a negatively charged phospholipid that displays a highly uneven distribution within cellular membranes, essential for establishment of cell polarity and other processes. In this review, we discuss how combined action of PS biosynthesis enzymes in the endoplasmic reticulum (ER), lipid transfer proteins (LTPs) acting within membrane contact sites (MCS) between the ER and other compartments, and lipid flippases and scramblases that mediate PS flip-flop between membrane leaflets controls the cellular distribution of PS. Enrichment of PS in specific compartments, in particular in the cytosolic leaflet of the plasma membrane (PM), requires input of energy, which can be supplied in the form of ATP or by phosphoinositides. Conversely, coupling between PS synthesis or degradation, PS flip-flop and PS transfer may enable PS transfer by passive flow. Such scenario is best documented by recent work on the formation of autophagosomes. The existence of lateral PS nanodomains, which is well-documented in the case of the PM and postulated for other compartments, can change the steepness or direction of PS gradients between compartments. Improvements in cellular imaging of lipids and membranes, lipidomic analysis of complex cellular samples, reconstitution of cellular lipid transport reactions and high-resolution structural data have greatly increased our understanding of cellular PS homeostasis. Our review also highlights how budding yeast has been instrumental for our understanding of the organization and transport of PS in cells.
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Affiliation(s)
- Guillaume Lenoir
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell, Gif-sur-Yvette, France
| | - Juan Martín D'Ambrosio
- Centre de Recherche en Biologie Cellulaire de Montpellier (CRBM), Université de Montpellier, CNRS, Montpellier, France
| | - Thibaud Dieudonné
- Danish Research Institute of Translational Neuroscience - DANDRITE, Nordic EMBL Partnership for Molecular Medicine, Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark
| | - Alenka Čopič
- Centre de Recherche en Biologie Cellulaire de Montpellier (CRBM), Université de Montpellier, CNRS, Montpellier, France
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Gabrielle PH, Faivre L, Audo I, Zanlonghi X, Dollfus H, Thiadens AAHJ, Zeitz C, Mancini GMS, Perdomo Y, Mohand-Saïd S, Lizé E, Lhussiez V, Nandrot EF, Acar N, Creuzot-Garcher C, Sahel JA, Ansar M, Thauvin-Robinet C, Duplomb L, Da Costa R. Cystoid maculopathy is a frequent feature of Cohen syndrome-associated retinopathy. Sci Rep 2021; 11:16412. [PMID: 34385517 PMCID: PMC8361024 DOI: 10.1038/s41598-021-95743-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 07/30/2021] [Indexed: 01/14/2023] Open
Abstract
Cohen syndrome (CS) is a rare syndromic form of rod-cone dystrophy. Recent case reports have suggested that cystoid maculopathy (CM) could affect CS patients with an early onset and high prevalence. Our study aims at improving our understanding and management of CM in CS patients through a retrospective case series of ten CS patients with identified pathogenic variants in VPS13B. Longitudinal optical coherence tomography (OCT) imaging was performed and treatment with carbonic anhydrase inhibitors (CAI) was provided to reduce the volume of cystoid spaces. CM affected eight out of ten patients in our cohort. The youngest patient showed a strong progression of macular cysts from the age of 4.5 to 5 years despite oral CAI medication. Other teenage and young adult patients showed stable macular cysts with and without treatment. One patient showed a moderate decrease of cystoid spaces in the absence of treatment at 22 years of age. Through a correlative analysis we found that the volume of cystoid spaces was positively correlated to the thickness of peripheral and macular photoreceptor-related layers. This study suggests that CAI treatments may not suffice to improve CM in CS patients, and that CM may resolve spontaneously during adulthood as photoreceptor dystrophy progresses.
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Affiliation(s)
- Pierre-Henry Gabrielle
- Department of Ophthalmology, University Hospital, 14 rue Paul Gaffarel, 21079, Dijon, France
| | - Laurence Faivre
- Inserm, UMR1231, Equipe GAD, Université de Bourgogne Franche Comté, Bâtiment B3, 15 Boulevard du Maréchal de Lattre de Tassigny, 21079, Dijon Cedex, France.,FHU TRANSLAD, CHU Dijon, 21000, Dijon, France.,Centre de Référence Anomalies du Développement et Syndromes Malformatifs, CHU Dijon, 21000, Dijon, France
| | - Isabelle Audo
- Sorbonne Université, INSERM, CNRS, Institut de La Vision, 17 rue Moreau, 75012, Paris, France.,CHNO Des Quinze-Vingts, DHU Sight Restore, INSERM-DGOS CIC 1423, 75012, Paris, France
| | - Xavier Zanlonghi
- Maladies Rares, Service d'Ophtalmologie, CHU Rennes, 2 rue Henri Le Guilloux, 35033, Rennes, France
| | - Hélène Dollfus
- Centre de Référence Pour Les Affections Rares en Génétique Ophtalmologique (CARGO), FSMR SENSGENE, ERN-EYE, Hôpitaux Universitaires de Strasbourg, 67000, Strasbourg, France.,Laboratoire de Génétique Médicale, Inserm, UMR1112, Institut de Génétique Médicale D'Alsace, Université de Strasbourg, 67000, Strasbourg, France
| | | | - Christina Zeitz
- Sorbonne Université, INSERM, CNRS, Institut de La Vision, 17 rue Moreau, 75012, Paris, France
| | - Grazia M S Mancini
- Department of Clinical Genetics, Erasmus MC, 3015, Rotterdam, The Netherlands
| | - Yaumara Perdomo
- Centre de Référence Pour Les Affections Rares en Génétique Ophtalmologique (CARGO), FSMR SENSGENE, ERN-EYE, Hôpitaux Universitaires de Strasbourg, 67000, Strasbourg, France.,Laboratoire de Génétique Médicale, Inserm, UMR1112, Institut de Génétique Médicale D'Alsace, Université de Strasbourg, 67000, Strasbourg, France
| | - Saddek Mohand-Saïd
- Sorbonne Université, INSERM, CNRS, Institut de La Vision, 17 rue Moreau, 75012, Paris, France.,CHNO Des Quinze-Vingts, DHU Sight Restore, INSERM-DGOS CIC 1423, 75012, Paris, France
| | - Eléonore Lizé
- Inserm, UMR1231, Equipe GAD, Université de Bourgogne Franche Comté, Bâtiment B3, 15 Boulevard du Maréchal de Lattre de Tassigny, 21079, Dijon Cedex, France
| | - Vincent Lhussiez
- Inserm, UMR1231, Equipe GAD, Université de Bourgogne Franche Comté, Bâtiment B3, 15 Boulevard du Maréchal de Lattre de Tassigny, 21079, Dijon Cedex, France
| | - Emeline F Nandrot
- Sorbonne Université, INSERM, CNRS, Institut de La Vision, 17 rue Moreau, 75012, Paris, France
| | - Niyazi Acar
- Centre Des Sciences du Goût Et de L'Alimentation, AgroSup Dijon, CNRS, INRA, Université Bourgogne Franche-Comté, 9E Boulevard Jeanne d'Arc, 21000, Dijon, France
| | - Catherine Creuzot-Garcher
- Department of Ophthalmology, University Hospital, 14 rue Paul Gaffarel, 21079, Dijon, France.,Centre Des Sciences du Goût Et de L'Alimentation, AgroSup Dijon, CNRS, INRA, Université Bourgogne Franche-Comté, 9E Boulevard Jeanne d'Arc, 21000, Dijon, France
| | - José-Alain Sahel
- Sorbonne Université, INSERM, CNRS, Institut de La Vision, 17 rue Moreau, 75012, Paris, France.,CHNO Des Quinze-Vingts, DHU Sight Restore, INSERM-DGOS CIC 1423, 75012, Paris, France.,Department of Ophthalmology, The University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA
| | - Muhammad Ansar
- Institute of Molecular and Clinical Ophthalmology Basel, 4031, Basel, Switzerland.,Department of Ophthalmology, Jules-Gonin Eye Hospital, University of Lausanne, 1004, Lausanne, Switzerland
| | - Christel Thauvin-Robinet
- Inserm, UMR1231, Equipe GAD, Université de Bourgogne Franche Comté, Bâtiment B3, 15 Boulevard du Maréchal de Lattre de Tassigny, 21079, Dijon Cedex, France.,FHU TRANSLAD, CHU Dijon, 21000, Dijon, France.,Centre de Référence Déficiences Intellectuelles de Causes Rares, CHU Dijon, 21000, Dijon, France
| | - Laurence Duplomb
- Inserm, UMR1231, Equipe GAD, Université de Bourgogne Franche Comté, Bâtiment B3, 15 Boulevard du Maréchal de Lattre de Tassigny, 21079, Dijon Cedex, France.,FHU TRANSLAD, CHU Dijon, 21000, Dijon, France
| | - Romain Da Costa
- Inserm, UMR1231, Equipe GAD, Université de Bourgogne Franche Comté, Bâtiment B3, 15 Boulevard du Maréchal de Lattre de Tassigny, 21079, Dijon Cedex, France. .,FHU TRANSLAD, CHU Dijon, 21000, Dijon, France.
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