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Trojani MC, Santucci-Darmanin S, Breuil V, Carle GF, Pierrefite-Carle V. Lysosomal exocytosis: From cell protection to protumoral functions. Cancer Lett 2024; 597:217024. [PMID: 38871244 DOI: 10.1016/j.canlet.2024.217024] [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: 02/19/2024] [Revised: 05/27/2024] [Accepted: 06/03/2024] [Indexed: 06/15/2024]
Abstract
Lysosomes are single membrane bounded group of acidic organelles that can be involved in a process called lysosomal exocytosis which leads to the extracellular release of their content. Lysosomal exocytosis is required for plasma membrane repair or remodeling events such as bone resorption, antigen presentation or mitosis, and for protection against toxic agents such as heavy metals. Recently, it has been showed that to fulfill this protective role, lysosomal exocytosis needs some autophagic proteins, in an autophagy-independent manner. In addition to these crucial physiological roles, lysosomal exocytosis plays a major protumoral role in various cancers. This effect is exerted through tumor microenvironment modifications, including extracellular matrix remodeling, acidosis, oncogenic and profibrogenic signals. This review provides a comprehensive overview of the different elements released in the microenvironment during lysosomal exocytosis, i.e. proteases, exosomes, and protons, and their effects in the context of tumor development and treatment.
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Affiliation(s)
- Marie-Charlotte Trojani
- UMR E-4320 TIRO-MATOs CEA/DRF/Institut Joliot, Université Côte d'Azur, Faculté de Médecine Nice, France; Service de Rhumatologie, CHU de Nice, Nice, France
| | - Sabine Santucci-Darmanin
- UMR E-4320 TIRO-MATOs CEA/DRF/Institut Joliot, Université Côte d'Azur, Faculté de Médecine Nice, France; CNRS, Paris, France
| | - Véronique Breuil
- UMR E-4320 TIRO-MATOs CEA/DRF/Institut Joliot, Université Côte d'Azur, Faculté de Médecine Nice, France; Service de Rhumatologie, CHU de Nice, Nice, France
| | - Georges F Carle
- UMR E-4320 TIRO-MATOs CEA/DRF/Institut Joliot, Université Côte d'Azur, Faculté de Médecine Nice, France; CNRS, Paris, France
| | - Valérie Pierrefite-Carle
- UMR E-4320 TIRO-MATOs CEA/DRF/Institut Joliot, Université Côte d'Azur, Faculté de Médecine Nice, France; INSERM, Paris, France.
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2
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Dainiak N. Biology of Exfoliation of Plasma Membrane-Derived Vesicles and the Radiation Response: Historical Background, Applications in Biodosimetry and Cell-Free Therapeutics, and Quantal Mechanisms for Their Release and Function with Implications for Space Travel. Radiat Res 2024; 202:328-354. [PMID: 38981604 DOI: 10.1667/rade-24-00078.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Accepted: 05/09/2024] [Indexed: 07/11/2024]
Abstract
This historical review of extracellular vesicles in the setting of exposure to ionizing radiation (IR) traces our understanding of how vesicles were initially examined and reported in the literature in the late 1970s (for secreted exosomes) and early 1980s (for plasma membrane-derived, exfoliated vesicles) to where we are now and where we may be headed in the next decade. An emphasis is placed on biophysical properties of extracellular vesicles, energy consumption and the role of vesiculation as an essential component of membrane turnover. The impact of intercellular signal trafficking by vesicle surface and intra-vesicular lipids, proteins, nucleic acids and metabolites is reviewed in the context of biomarkers for estimating individual radiation dose after exposure to radiation, pathogenesis of disease and development of cell-free therapeutics. Since vesicles express both growth stimulatory and inhibitory molecules, a hypothesis is proposed to consider superposition in a shared space and entanglement of molecules by energy sources that are external to human cells. Implications of this approach for travel in deep space are briefly discussed in the context of clinical disorders that have been observed after space travel.
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Affiliation(s)
- Nicholas Dainiak
- Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, Connecticut 06520
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3
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Mahanty S, Bergam P, Belapurkar V, Eluvathingal L, Gupta N, Goud B, Nair D, Raposo G, Setty SRG. Biogenesis of specialized lysosomes in differentiated keratinocytes relies on close apposition with the Golgi apparatus. Cell Death Dis 2024; 15:496. [PMID: 38992005 PMCID: PMC11239851 DOI: 10.1038/s41419-024-06710-w] [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: 01/02/2024] [Revised: 04/23/2024] [Accepted: 04/26/2024] [Indexed: 07/13/2024]
Abstract
Intracellular organelles support cellular physiology in diverse conditions. In the skin, epidermal keratinocytes undergo differentiation with gradual changes in cellular physiology, accompanying remodeling of lysosomes and the Golgi apparatus. However, it was not known whether changes in Golgi and lysosome morphology and their redistribution were linked. Here, we show that disassembled Golgi is distributed in close physical apposition to lysosomes in differentiated keratinocytes. This atypical localization requires the Golgi tethering protein GRASP65, which is associated with both the Golgi and lysosome membranes. Depletion of GRASP65 results in the loss of Golgi-lysosome apposition and the malformation of lysosomes, defined by their aberrant morphology, size, and function. Surprisingly, a trans-Golgi enzyme and secretory Golgi cargoes are extensively localized to the lysosome lumen and secreted to the cell surface, contributing to total protein secretion of differentiated keratinocytes but not in proliferative precursors, indicating that lysosomes acquire specialization during differentiation. We further demonstrate that the secretory function of the Golgi apparatus is critical to maintain keratinocyte lysosomes. Our study uncovers a novel form of Golgi-lysosome cross-talk and its role in maintaining specialized secretory lysosomes in differentiated keratinocytes.
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Affiliation(s)
- Sarmistha Mahanty
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore, 560012, India.
| | - Ptissam Bergam
- Institut Curie, PSL Research University, CNRS, UMR 144, Structure and Membrane Compartments, F-75005, Paris, France
| | - Vivek Belapurkar
- Centre for Neuroscience, Indian Institute of Science, Bangalore, 560012, India
| | | | - Nikita Gupta
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore, 560012, India
| | - Bruno Goud
- Institut Curie, PSL Research University, CNRS, UMR 144, 26 rue d'Ulm, F-75005, Paris, France
| | - Deepak Nair
- Centre for Neuroscience, Indian Institute of Science, Bangalore, 560012, India
| | - Graça Raposo
- Institut Curie, PSL Research University, CNRS, UMR 144, Structure and Membrane Compartments, F-75005, Paris, France
| | - Subba Rao Gangi Setty
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore, 560012, India.
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4
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Yan Q, Gomis Perez C, Karatekin E. Cell Membrane Tension Gradients, Membrane Flows, and Cellular Processes. Physiology (Bethesda) 2024; 39:0. [PMID: 38501962 DOI: 10.1152/physiol.00007.2024] [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: 01/30/2024] [Revised: 03/18/2024] [Accepted: 03/18/2024] [Indexed: 03/20/2024] Open
Abstract
Cell membrane tension affects and is affected by many fundamental cellular processes, yet it is poorly understood. Recent experiments show that membrane tension can propagate at vastly different speeds in different cell types, reflecting physiological adaptations. Here we briefly review the current knowledge about membrane tension gradients, membrane flows, and their physiological context.
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Affiliation(s)
- Qi Yan
- Cellular and Molecular Physiology, Yale University, New Haven, Connecticut, United States
- Nanobiology Institute, Yale University, West Haven, Connecticut, United States
| | - Carolina Gomis Perez
- Cellular and Molecular Physiology, Yale University, New Haven, Connecticut, United States
- Nanobiology Institute, Yale University, West Haven, Connecticut, United States
| | - Erdem Karatekin
- Cellular and Molecular Physiology, Yale University, New Haven, Connecticut, United States
- Nanobiology Institute, Yale University, West Haven, Connecticut, United States
- Molecular Biophysics and Biochemistry, Yale University, New Haven, Connecticut, United States
- Wu Tsai Institute, Yale University, New Haven, Connecticut, United States
- Saints-Pères Paris Institute for the Neurosciences (SPPIN), Centre National de la Recherche Scientifique (CNRS), Paris, France
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5
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Shen Y, Ori-McKenney KM. Microtubule-associated protein MAP7 promotes tubulin posttranslational modifications and cargo transport to enable osmotic adaptation. Dev Cell 2024; 59:1553-1570.e7. [PMID: 38574732 PMCID: PMC11187767 DOI: 10.1016/j.devcel.2024.03.022] [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: 06/23/2023] [Revised: 09/11/2023] [Accepted: 03/12/2024] [Indexed: 04/06/2024]
Abstract
Cells remodel their cytoskeletal networks to adapt to their environment. Here, we analyze the mechanisms utilized by the cell to tailor its microtubule landscape in response to changes in osmolarity that alter macromolecular crowding. By integrating live-cell imaging, ex vivo enzymatic assays, and in vitro reconstitution, we probe the impact of cytoplasmic density on microtubule-associated proteins (MAPs) and tubulin posttranslational modifications (PTMs). We find that human epithelial cells respond to fluctuations in cytoplasmic density by modulating microtubule acetylation, detyrosination, or MAP7 association without differentially affecting polyglutamylation, tyrosination, or MAP4 association. These MAP-PTM combinations alter intracellular cargo transport, enabling the cell to respond to osmotic challenges. We further dissect the molecular mechanisms governing tubulin PTM specification and find that MAP7 promotes acetylation and inhibits detyrosination. Our data identify MAP7 in modulating the tubulin code, resulting in microtubule cytoskeleton remodeling and alteration of intracellular transport as an integrated mechanism of cellular adaptation.
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Affiliation(s)
- Yusheng Shen
- Department of Molecular and Cellular Biology, University of California, Davis, Davis, CA 95616, USA
| | - Kassandra M Ori-McKenney
- Department of Molecular and Cellular Biology, University of California, Davis, Davis, CA 95616, USA.
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Ghisleni A, Gauthier NC. Mechanotransduction through membrane tension: It's all about propagation? Curr Opin Cell Biol 2024; 86:102294. [PMID: 38101114 DOI: 10.1016/j.ceb.2023.102294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 11/20/2023] [Accepted: 11/21/2023] [Indexed: 12/17/2023]
Abstract
Over the past 25 years, membrane tension has emerged as a primary mechanical factor influencing cell behavior. Although supporting evidences are accumulating, the integration of this parameter in the lifecycle of cells, organs, and tissues is complex. The plasma membrane is envisioned as a bilayer continuum acting as a 2D fluid. However, it possesses almost infinite combinations of proteins, lipids, and glycans that establish interactions with the extracellular or intracellular environments. This results in a tridimensional composite material with non-trivial dynamics and physics, and the task of integrating membrane mechanics and cellular outcome is a daunting chore for biologists. In light of the most recent discoveries, we aim in this review to provide non-specialist readers some tips on how to solve this conundrum.
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Affiliation(s)
- Andrea Ghisleni
- IFOM ETS, The AIRC Institute of Molecular Oncology, Via Adamello 16, 20139, Milan, Italy
| | - Nils C Gauthier
- IFOM ETS, The AIRC Institute of Molecular Oncology, Via Adamello 16, 20139, Milan, Italy.
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7
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Maghe C, Trillet K, André-Grégoire G, Kerhervé M, Merlet L, Jacobs KA, Schauer K, Bidère N, Gavard J. The paracaspase MALT1 controls cholesterol homeostasis in glioblastoma stem-like cells through lysosome proteome shaping. Cell Rep 2024; 43:113631. [PMID: 38183651 DOI: 10.1016/j.celrep.2023.113631] [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: 03/24/2023] [Revised: 11/27/2023] [Accepted: 12/13/2023] [Indexed: 01/08/2024] Open
Abstract
Glioblastoma stem-like cells (GSCs) compose a tumor-initiating and -propagating population remarkably vulnerable to variation in the stability and integrity of the lysosomal compartment. Previous work has shown that the expression and activity of the paracaspase MALT1 control GSC viability via lysosome abundance. However, the underlying mechanisms remain elusive. By combining RNA sequencing (RNA-seq) with proteome-wide label-free quantification, we now report that MALT1 repression in patient-derived GSCs alters the homeostasis of cholesterol, which accumulates in late endosomes (LEs)-lysosomes. This failure in cholesterol supply culminates in cell death and autophagy defects, which can be partially reverted by providing exogenous membrane-permeable cholesterol to GSCs. From a molecular standpoint, a targeted lysosome proteome analysis unraveled that Niemann-Pick type C (NPC) lysosomal cholesterol transporters are diluted when MALT1 is impaired. Accordingly, we found that NPC1/2 inhibition and silencing partially mirror MALT1 loss-of-function phenotypes. This supports the notion that GSC fitness relies on lysosomal cholesterol homeostasis.
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Affiliation(s)
- Clément Maghe
- Team SOAP, CRCI2NA, Nantes Université, INSERM, CNRS, Université d'Angers, 44000 Nantes, France; Equipe Labellisée Ligue Nationale Contre le Cancer, 75013 Paris, France
| | - Kilian Trillet
- Team SOAP, CRCI2NA, Nantes Université, INSERM, CNRS, Université d'Angers, 44000 Nantes, France; Equipe Labellisée Ligue Nationale Contre le Cancer, 75013 Paris, France
| | - Gwennan André-Grégoire
- Team SOAP, CRCI2NA, Nantes Université, INSERM, CNRS, Université d'Angers, 44000 Nantes, France; Equipe Labellisée Ligue Nationale Contre le Cancer, 75013 Paris, France; Institut de Cancérologie de l'Ouest (ICO), 44800 Saint-Herblain, France
| | - Mathilde Kerhervé
- Team SOAP, CRCI2NA, Nantes Université, INSERM, CNRS, Université d'Angers, 44000 Nantes, France; Equipe Labellisée Ligue Nationale Contre le Cancer, 75013 Paris, France
| | - Laura Merlet
- Team SOAP, CRCI2NA, Nantes Université, INSERM, CNRS, Université d'Angers, 44000 Nantes, France; Equipe Labellisée Ligue Nationale Contre le Cancer, 75013 Paris, France
| | - Kathryn A Jacobs
- Team SOAP, CRCI2NA, Nantes Université, INSERM, CNRS, Université d'Angers, 44000 Nantes, France; Equipe Labellisée Ligue Nationale Contre le Cancer, 75013 Paris, France
| | - Kristine Schauer
- Institut Gustave Roussy, Université Paris-Saclay, INSERM, CNRS, 94800 Villejuif, France
| | - Nicolas Bidère
- Team SOAP, CRCI2NA, Nantes Université, INSERM, CNRS, Université d'Angers, 44000 Nantes, France; Equipe Labellisée Ligue Nationale Contre le Cancer, 75013 Paris, France
| | - Julie Gavard
- Team SOAP, CRCI2NA, Nantes Université, INSERM, CNRS, Université d'Angers, 44000 Nantes, France; Equipe Labellisée Ligue Nationale Contre le Cancer, 75013 Paris, France; Institut de Cancérologie de l'Ouest (ICO), 44800 Saint-Herblain, France.
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8
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Zhang H, Jiang H, Liu X, Wang X. A review of innovative electrochemical strategies for bioactive molecule detection and cell imaging: Current advances and challenges. Anal Chim Acta 2024; 1285:341920. [PMID: 38057043 DOI: 10.1016/j.aca.2023.341920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 10/13/2023] [Accepted: 10/14/2023] [Indexed: 12/08/2023]
Abstract
Cellular heterogeneity poses a major challenge for tumor theranostics, requiring high-resolution intercellular bioanalysis strategies. Over the past decades, the advantages of electrochemical analysis, such as high sensitivity, good spatio-temporal resolution, and ease of use, have made it the preferred method to uncover cellular differences. To inspire more creative research, herein, we highlight seminal works in electrochemical techniques for biomolecule analysis and bioimaging. Specifically, micro/nano-electrode-based electrochemical techniques enable real-time quantitative analysis of electroactive substances relevant to life processes in the micro-nanostructure of cells and tissues. Nanopore-based technique plays a vital role in biosensing by utilizing nanoscale pores to achieve high-precision detection and analysis of biomolecules with exceptional sensitivity and single-molecule resolution. Electrochemiluminescence (ECL) technology is utilized for real-time monitoring of the behavior and features of individual cancer cells, enabling observation of their dynamic processes due to its capability of providing high-resolution and highly sensitive bioimaging of cells. Particularly, scanning electrochemical microscopy (SECM) and scanning ion conductance microscopy (SICM) which are widely used in real-time observation of cell surface biological processes and three-dimensional imaging of micro-nano structures, such as metabolic activity, ion channel activity, and cell morphology are introduced in this review. Furthermore, the expansion of the scope of cellular electrochemistry research by innovative functionalized electrodes and electrochemical imaging models and strategies to address future challenges and potential applications is also discussed in this review.
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Affiliation(s)
- Hao Zhang
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu 210096, China
| | - Hui Jiang
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu 210096, China
| | - Xiaohui Liu
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu 210096, China.
| | - Xuemei Wang
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu 210096, China.
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9
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Shen Y, Ori-McKenney KM. Macromolecular Crowding Tailors the Microtubule Cytoskeleton Through Tubulin Modifications and Microtubule-Associated Proteins. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.06.14.544846. [PMID: 37398431 PMCID: PMC10312695 DOI: 10.1101/2023.06.14.544846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Abstract
Cells remodel their cytoskeletal networks to adapt to their environment. Here, we analyze the mechanisms utilized by the cell to tailor its microtubule landscape in response to changes in osmolarity that alter macromolecular crowding. By integrating live cell imaging, ex vivo enzymatic assays, and in vitro reconstitution, we probe the impact of acute perturbations in cytoplasmic density on microtubule-associated proteins (MAPs) and tubulin posttranslational modifications (PTMs), unraveling the molecular underpinnings of cellular adaptation via the microtubule cytoskeleton. We find that cells respond to fluctuations in cytoplasmic density by modulating microtubule acetylation, detyrosination, or MAP7 association, without differentially affecting polyglutamylation, tyrosination, or MAP4 association. These MAP-PTM combinations alter intracellular cargo transport, enabling the cell to respond to osmotic challenges. We further dissect the molecular mechanisms governing tubulin PTM specification, and find that MAP7 promotes acetylation by biasing the conformation of the microtubule lattice, and directly inhibits detyrosination. Acetylation and detyrosination can therefore be decoupled and utilized for distinct cellular purposes. Our data reveal that the MAP code dictates the tubulin code, resulting in remodeling of the microtubule cytoskeleton and alteration of intracellular transport as an integrated mechanism of cellular adaptation.
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Affiliation(s)
- Yusheng Shen
- Department of Molecular and Cellular Biology, University of California, Davis, Davis, CA 95616, USA
| | - Kassandra M Ori-McKenney
- Department of Molecular and Cellular Biology, University of California, Davis, Davis, CA 95616, USA
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10
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Lachuer H, Le L, Lévêque-Fort S, Goud B, Schauer K. Spatial organization of lysosomal exocytosis relies on membrane tension gradients. Proc Natl Acad Sci U S A 2023; 120:e2207425120. [PMID: 36800388 PMCID: PMC9974462 DOI: 10.1073/pnas.2207425120] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 12/17/2022] [Indexed: 02/18/2023] Open
Abstract
Lysosomal exocytosis is involved in many key cellular processes but its spatiotemporal regulation is poorly known. Using total internal reflection fluorescence microscopy (TIRFM) and spatial statistics, we observed that lysosomal exocytosis is not random at the adhesive part of the plasma membrane of RPE1 cells but clustered at different scales. Although the rate of exocytosis is regulated by the actin cytoskeleton, neither interfering with actin or microtubule dynamics by drug treatments alters its spatial organization. Exocytosis events partially co-appear at focal adhesions (FAs) and their clustering is reduced upon removal of FAs. Changes in membrane tension following a hypo-osmotic shock or treatment with methyl-β-cyclodextrin were found to increase clustering. To investigate the link between FAs and membrane tension, cells were cultured on adhesive ring-shaped micropatterns, which allow to control the spatial organization of FAs. By using a combination of TIRFM and fluorescence lifetime imaging microscopy (FLIM), we revealed the existence of a radial gradient in membrane tension. By changing the diameter of micropatterned substrates, we further showed that this gradient as well as the extent of exocytosis clustering can be controlled. Together, our data indicate that the spatial clustering of lysosomal exocytosis relies on membrane tension patterning controlled by the spatial organization of FAs.
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Affiliation(s)
- Hugo Lachuer
- Institut Curie, Paris Sciences et Lettres Research University, CNRS UMR 144 Cell Biology and Cancer, 75005Paris, France
| | - Laurent Le
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay91405, Orsay, France
| | - Sandrine Lévêque-Fort
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay91405, Orsay, France
| | - Bruno Goud
- Institut Curie, Paris Sciences et Lettres Research University, CNRS UMR 144 Cell Biology and Cancer, 75005Paris, France
| | - Kristine Schauer
- Institut Curie, Paris Sciences et Lettres Research University, CNRS UMR 144 Cell Biology and Cancer, 75005Paris, France
- Tumor Cell Dynamics Unit, Inserm U1279 Gustave Roussy Institute, Université Paris-Saclay, Villejuif94800, France
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