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Chong ZZ, Souayah N. Radixin: Roles in the Nervous System and Beyond. Biomedicines 2024; 12:2341. [PMID: 39457653 PMCID: PMC11504607 DOI: 10.3390/biomedicines12102341] [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: 09/16/2024] [Revised: 10/10/2024] [Accepted: 10/14/2024] [Indexed: 10/28/2024] Open
Abstract
BACKGROUND Radixin is an ERM family protein that includes radixin, moesin, and ezrin. The importance of ERM family proteins has been attracting more attention, and studies on the roles of ERM in biological function and the pathogenesis of some diseases are accumulating. In particular, we have found that radixin is the most dramatically changed ERM protein in elevated glucose-treated Schwann cells. METHOD We systemically review the literature on ERM, radixin in focus, and update the roles of radixin in regulating cell morphology, interaction, and cell signaling pathways. The potential of radixin as a therapeutic target in neurodegenerative diseases and cancer was also discussed. RESULTS Radixin research has focused on its cell functions, activation, and pathogenic roles in some diseases. Radixin and other ERM proteins maintain cell shape, growth, and motility. In the nervous system, radixin has been shown to prevent neurodegeneration and axonal growth. The activation of radixin is through phosphorylation of its conserved threonine residues. Radixin functions in cell signaling pathways by binding to membrane proteins and relaying the cell signals into the cells. Deficiency of radixin has been involved in the pathogenic process of diseases in the central nervous system and diabetic peripheral nerve injury. Moreover, radixin also plays a role in cell growth and drug resistance in multiple cancers. The trials of therapeutic potential through radixin modulation have been accumulating. However, the exact mechanisms underlying the roles of radixin are far from clarification. CONCLUSIONS Radixin plays various roles in cells and is involved in developing neurodegenerative diseases and many types of cancers. Therefore, radixin may be considered a potential target for developing therapeutic strategies for its related diseases. Further elucidation of the function and the cell signaling pathways that are linked to radixin may open the avenue to finding novel therapeutic strategies for diseases in the nervous system and other body systems.
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Affiliation(s)
- Zhao Zhong Chong
- Department of Neurology, New Jersey Medical School, Rutgers University, 185 S. Orange Ave, Newark, NJ 07103, USA
| | - Nizar Souayah
- Department of Neurology, New Jersey Medical School, Rutgers University, 185 S. Orange Ave, Newark, NJ 07103, USA
- Department of Neurology, New Jersey Medical School, Rutgers University, 90 Bergen Street DOC 8100, Newark, NJ 07101, USA
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Tsai FC, Guérin G, Pernier J, Bassereau P. Actin-membrane linkers: Insights from synthetic reconstituted systems. Eur J Cell Biol 2024; 103:151402. [PMID: 38461706 DOI: 10.1016/j.ejcb.2024.151402] [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: 12/03/2023] [Revised: 02/10/2024] [Accepted: 02/28/2024] [Indexed: 03/12/2024] Open
Abstract
At the cell surface, the actin cytoskeleton and the plasma membrane interact reciprocally in a variety of processes related to the remodeling of the cell surface. The actin cytoskeleton has been known to modulate membrane organization and reshape the membrane. To this end, actin-membrane linking molecules play a major role in regulating actin assembly and spatially direct the interaction between the actin cytoskeleton and the membrane. While studies in cells have provided a wealth of knowledge on the molecular composition and interactions of the actin-membrane interface, the complex molecular interactions make it challenging to elucidate the precise actions of the actin-membrane linkers at the interface. Synthetic reconstituted systems, consisting of model membranes and purified proteins, have been a powerful approach to elucidate how actin-membrane linkers direct actin assembly to drive membrane shape changes. In this review, we will focus only on several actin-membrane linkers that have been studied by using reconstitution systems. We will discuss the design principles of these reconstitution systems and how they have contributed to the understanding of the cellular functions of actin-membrane linkers. Finally, we will provide a perspective on future research directions in understanding the intricate actin-membrane interaction.
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Affiliation(s)
- Feng-Ching Tsai
- Institut Curie, Université PSL, Sorbonne Université, CNRS UMR168, Physics of Cells and Cancer, Paris 75005, France.
| | - Gwendal Guérin
- Institut Curie, Université PSL, Sorbonne Université, CNRS UMR168, Physics of Cells and Cancer, Paris 75005, France
| | - Julien Pernier
- Tumor Cell Dynamics Unit, Inserm U1279, Gustave Roussy Institute, Université Paris-Saclay, Villejuif 94800, France
| | - Patricia Bassereau
- Institut Curie, Université PSL, Sorbonne Université, CNRS UMR168, Physics of Cells and Cancer, Paris 75005, France.
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Gamblin CL, Alende C, Corriveau F, Jetté A, Parent-Prévost F, Biehler C, Majeau N, Laurin M, Laprise P. The polarity protein Yurt associates with the plasma membrane via basic and hydrophobic motifs embedded in its FERM domain. J Cell Sci 2024; 137:jcs261691. [PMID: 38682269 DOI: 10.1242/jcs.261691] [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: 09/28/2023] [Accepted: 04/16/2024] [Indexed: 05/01/2024] Open
Abstract
The subcellular distribution of the polarity protein Yurt (Yrt) is subjected to a spatio-temporal regulation in Drosophila melanogaster embryonic epithelia. After cellularization, Yrt binds to the lateral membrane of ectodermal cells and maintains this localization throughout embryogenesis. During terminal differentiation of the epidermis, Yrt accumulates at septate junctions and is also recruited to the apical domain. Although the mechanisms through which Yrt associates with septate junctions and the apical domain have been deciphered, how Yrt binds to the lateral membrane remains as an outstanding puzzle. Here, we show that the FERM domain of Yrt is necessary and sufficient for membrane localization. Our data also establish that the FERM domain of Yrt directly binds negatively charged phospholipids. Moreover, we demonstrate that positively charged amino acid motifs embedded within the FERM domain mediates Yrt membrane association. Finally, we provide evidence suggesting that Yrt membrane association is functionally important. Overall, our study highlights the molecular basis of how Yrt associates with the lateral membrane during the developmental time window where it is required for segregation of lateral and apical domains.
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Affiliation(s)
- Clémence L Gamblin
- Centre de Recherche sur le Cancer, Université Laval, 9 McMahon, Quebec City, Québec, G1R 3S3, Canada
- axe Oncologie du Centre de Recherche du Centre Hospitalier Universitaire de Québec-UL, 9 McMahon, Québec, QC, G1R 3S3, Canada
| | - Charles Alende
- Centre de Recherche sur le Cancer, Université Laval, 9 McMahon, Quebec City, Québec, G1R 3S3, Canada
- axe Oncologie du Centre de Recherche du Centre Hospitalier Universitaire de Québec-UL, 9 McMahon, Québec, QC, G1R 3S3, Canada
| | - François Corriveau
- Centre de Recherche sur le Cancer, Université Laval, 9 McMahon, Quebec City, Québec, G1R 3S3, Canada
- axe Oncologie du Centre de Recherche du Centre Hospitalier Universitaire de Québec-UL, 9 McMahon, Québec, QC, G1R 3S3, Canada
| | - Alexandra Jetté
- Centre de Recherche sur le Cancer, Université Laval, 9 McMahon, Quebec City, Québec, G1R 3S3, Canada
- axe Oncologie du Centre de Recherche du Centre Hospitalier Universitaire de Québec-UL, 9 McMahon, Québec, QC, G1R 3S3, Canada
| | - Frédérique Parent-Prévost
- Centre de Recherche sur le Cancer, Université Laval, 9 McMahon, Quebec City, Québec, G1R 3S3, Canada
- axe Oncologie du Centre de Recherche du Centre Hospitalier Universitaire de Québec-UL, 9 McMahon, Québec, QC, G1R 3S3, Canada
| | - Cornélia Biehler
- Centre de Recherche sur le Cancer, Université Laval, 9 McMahon, Quebec City, Québec, G1R 3S3, Canada
- axe Oncologie du Centre de Recherche du Centre Hospitalier Universitaire de Québec-UL, 9 McMahon, Québec, QC, G1R 3S3, Canada
| | - Nathalie Majeau
- Centre de Recherche sur le Cancer, Université Laval, 9 McMahon, Quebec City, Québec, G1R 3S3, Canada
- axe Oncologie du Centre de Recherche du Centre Hospitalier Universitaire de Québec-UL, 9 McMahon, Québec, QC, G1R 3S3, Canada
| | - Mélanie Laurin
- Centre de Recherche sur le Cancer, Université Laval, 9 McMahon, Quebec City, Québec, G1R 3S3, Canada
- axe Oncologie du Centre de Recherche du Centre Hospitalier Universitaire de Québec-UL, 9 McMahon, Québec, QC, G1R 3S3, Canada
- Département de biologie moléculaire, de biochimie médicale et de pathologie, Faculté de médecine, Université Laval, Quebec City, Québec, G1V 0A6, Canada
| | - Patrick Laprise
- Centre de Recherche sur le Cancer, Université Laval, 9 McMahon, Quebec City, Québec, G1R 3S3, Canada
- axe Oncologie du Centre de Recherche du Centre Hospitalier Universitaire de Québec-UL, 9 McMahon, Québec, QC, G1R 3S3, Canada
- Département de biologie moléculaire, de biochimie médicale et de pathologie, Faculté de médecine, Université Laval, Quebec City, Québec, G1V 0A6, Canada
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Lolicato F, Nickel W, Haucke V, Ebner M. Phosphoinositide switches in cell physiology - From molecular mechanisms to disease. J Biol Chem 2024; 300:105757. [PMID: 38364889 PMCID: PMC10944118 DOI: 10.1016/j.jbc.2024.105757] [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: 11/28/2023] [Revised: 02/02/2024] [Accepted: 02/08/2024] [Indexed: 02/18/2024] Open
Abstract
Phosphoinositides are amphipathic lipid molecules derived from phosphatidylinositol that represent low abundance components of biological membranes. Rather than serving as mere structural elements of lipid bilayers, they represent molecular switches for a broad range of biological processes, including cell signaling, membrane dynamics and remodeling, and many other functions. Here, we focus on the molecular mechanisms that turn phosphoinositides into molecular switches and how the dysregulation of these processes can lead to disease.
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Affiliation(s)
- Fabio Lolicato
- Heidelberg University Biochemistry Center, Heidelberg, Germany; Department of Physics, University of Helsinki, Helsinki, Finland.
| | - Walter Nickel
- Heidelberg University Biochemistry Center, Heidelberg, Germany
| | - Volker Haucke
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Berlin, Germany; Department of Biology, Chemistry, Pharmacy, Freie Universität Berlin, Berlin, Germany; Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Michael Ebner
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Berlin, Germany.
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