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Mercey O, Popa A, Cavard A, Paquet A, Chevalier B, Pons N, Magnone V, Zangari J, Brest P, Zaragosi LE, Ponzio G, Lebrigand K, Barbry P, Marcet B. Characterizing isomiR variants within the microRNA-34/449 family. FEBS Lett 2017; 591:693-705. [PMID: 28192603 PMCID: PMC5363356 DOI: 10.1002/1873-3468.12595] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 01/26/2017] [Accepted: 02/08/2017] [Indexed: 01/13/2023]
Abstract
miR‐34/449 microRNAs are conserved regulators of multiciliated cell differentiation. Here, we evidence and characterize expression of two isomiR variant sequences from the miR‐34/449 family in human airway epithelial cells. These isomiRs differ from their canonical counterparts miR‐34b and miR‐449c by one supplemental uridine at their 5′‐end, leading to a one‐base shift in their seed region. Overexpression of canonical miR‐34/449 or 5′‐isomiR‐34/449 induces distinct gene expression profiles and biological effects. However, some target transcripts and functional activities are shared by both canonical microRNAs and isomiRs. Indeed, both repress important targets that result in cell cycle blockage and Notch pathway inhibition. Our findings suggest that 5′‐isomiR‐34/449 may represent additional mechanisms by which miR‐34/449 family finely controls several pathways to drive multiciliogenesis.
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Affiliation(s)
- Olivier Mercey
- CNRS, IPMC, Université Côte d'Azur, Sophia-Antipolis, Valbonne, France
| | - Alexandra Popa
- CNRS, IPMC, Université Côte d'Azur, Sophia-Antipolis, Valbonne, France
| | - Amélie Cavard
- CNRS, IPMC, Université Côte d'Azur, Sophia-Antipolis, Valbonne, France
| | - Agnès Paquet
- CNRS, IPMC, Université Côte d'Azur, Sophia-Antipolis, Valbonne, France
| | - Benoît Chevalier
- CNRS, IPMC, Université Côte d'Azur, Sophia-Antipolis, Valbonne, France
| | - Nicolas Pons
- CNRS, IPMC, Université Côte d'Azur, Sophia-Antipolis, Valbonne, France
| | - Virginie Magnone
- CNRS, IPMC, Université Côte d'Azur, Sophia-Antipolis, Valbonne, France
| | - Joséphine Zangari
- CNRS, INSERM, IRCAN, FHU-OncoAge, Université Côte d'Azur, Sophia-Antipolis, Valbonne, France
| | - Patrick Brest
- CNRS, INSERM, IRCAN, FHU-OncoAge, Université Côte d'Azur, Sophia-Antipolis, Valbonne, France
| | | | - Gilles Ponzio
- CNRS, IPMC, Université Côte d'Azur, Sophia-Antipolis, Valbonne, France
| | - Kevin Lebrigand
- CNRS, IPMC, Université Côte d'Azur, Sophia-Antipolis, Valbonne, France
| | - Pascal Barbry
- CNRS, IPMC, Université Côte d'Azur, Sophia-Antipolis, Valbonne, France
| | - Brice Marcet
- CNRS, IPMC, Université Côte d'Azur, Sophia-Antipolis, Valbonne, France
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Mercey O, Chevalier B, Kodjabachian L, Barbry P, Marcet B. [MicroRNAs pull the strings of motile cilia]. Med Sci (Paris) 2015; 31:1078-80. [PMID: 26672659 DOI: 10.1051/medsci/20153112010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Olivier Mercey
- CNRS, institut de pharmacologie moléculaire et cellulaire, UMR7275, Sophia-Antipolis, F06560, France - Université de Nice-Sophia-Antipolis, 660, route des Lucioles, F-06560 Sophia-Antipolis, France
| | - Benoît Chevalier
- CNRS, institut de pharmacologie moléculaire et cellulaire, UMR7275, Sophia-Antipolis, F06560, France - Université de Nice-Sophia-Antipolis, 660, route des Lucioles, F-06560 Sophia-Antipolis, France
| | - Laurent Kodjabachian
- Aix-Marseille Université, CNRS, UMR7288, institut de biologie du développement de Marseille, F13288 Marseille, France
| | - Pascal Barbry
- CNRS, institut de pharmacologie moléculaire et cellulaire, UMR7275, Sophia-Antipolis, F06560, France - Université de Nice-Sophia-Antipolis, 660, route des Lucioles, F-06560 Sophia-Antipolis, France
| | - Brice Marcet
- CNRS, institut de pharmacologie moléculaire et cellulaire, UMR7275, Sophia-Antipolis, F06560, France - Université de Nice-Sophia-Antipolis, 660, route des Lucioles, F-06560 Sophia-Antipolis, France
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Chevalier B, Adamiok A, Mercey O, Revinski DR, Zaragosi LE, Pasini A, Kodjabachian L, Barbry P, Marcet B. miR-34/449 control apical actin network formation during multiciliogenesis through small GTPase pathways. Nat Commun 2015; 6:8386. [PMID: 26381333 PMCID: PMC4595761 DOI: 10.1038/ncomms9386] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Accepted: 08/17/2015] [Indexed: 12/13/2022] Open
Abstract
Vertebrate multiciliated cells (MCCs) contribute to fluid propulsion in several biological processes. We previously showed that microRNAs of the miR-34/449 family trigger MCC differentiation by repressing cell cycle genes and the Notch pathway. Here, using human and Xenopus MCCs, we show that beyond this initial step, miR-34/449 later promote the assembly of an apical actin network, required for proper basal bodies anchoring. Identification of miR-34/449 targets related to small GTPase pathways led us to characterize R-Ras as a key regulator of this process. Protection of RRAS messenger RNA against miR-34/449 binding impairs actin cap formation and multiciliogenesis, despite a still active RhoA. We propose that miR-34/449 also promote relocalization of the actin binding protein Filamin-A, a known RRAS interactor, near basal bodies in MCCs. Our study illustrates the intricate role played by miR-34/449 in coordinating several steps of a complex differentiation programme by regulating distinct signalling pathways. MicroRNAs of the miR-34/449 family initiate formation of multiciliated cells through the suppression of cell cycle genes and Notch. Here the authors show that miR-34/449 also regulate the assembly of an apical actin network necessary for basal body anchoring by regulating the expression of R-Ras.
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Affiliation(s)
- Benoît Chevalier
- CNRS, Institut de Pharmacologie Moléculaire et Cellulaire (IPMC), UMR-7275, 660 route des Lucioles, 06560 Sophia-Antipolis, France.,University of Nice-Sophia-Antipolis (UNS), Institut de Pharmacologie Moléculaire et Cellulaire, 660 route des Lucioles, Valbonne, 06560 Sophia-Antipolis, France
| | - Anna Adamiok
- Aix-Marseille Université, CNRS, UMR7288, Institut de Biologie du Développement de Marseille (IBDM), 13288 Marseille, France
| | - Olivier Mercey
- CNRS, Institut de Pharmacologie Moléculaire et Cellulaire (IPMC), UMR-7275, 660 route des Lucioles, 06560 Sophia-Antipolis, France.,University of Nice-Sophia-Antipolis (UNS), Institut de Pharmacologie Moléculaire et Cellulaire, 660 route des Lucioles, Valbonne, 06560 Sophia-Antipolis, France
| | - Diego R Revinski
- Aix-Marseille Université, CNRS, UMR7288, Institut de Biologie du Développement de Marseille (IBDM), 13288 Marseille, France
| | - Laure-Emmanuelle Zaragosi
- CNRS, Institut de Pharmacologie Moléculaire et Cellulaire (IPMC), UMR-7275, 660 route des Lucioles, 06560 Sophia-Antipolis, France.,University of Nice-Sophia-Antipolis (UNS), Institut de Pharmacologie Moléculaire et Cellulaire, 660 route des Lucioles, Valbonne, 06560 Sophia-Antipolis, France
| | - Andrea Pasini
- Aix-Marseille Université, CNRS, UMR7288, Institut de Biologie du Développement de Marseille (IBDM), 13288 Marseille, France
| | - Laurent Kodjabachian
- Aix-Marseille Université, CNRS, UMR7288, Institut de Biologie du Développement de Marseille (IBDM), 13288 Marseille, France
| | - Pascal Barbry
- CNRS, Institut de Pharmacologie Moléculaire et Cellulaire (IPMC), UMR-7275, 660 route des Lucioles, 06560 Sophia-Antipolis, France.,University of Nice-Sophia-Antipolis (UNS), Institut de Pharmacologie Moléculaire et Cellulaire, 660 route des Lucioles, Valbonne, 06560 Sophia-Antipolis, France
| | - Brice Marcet
- CNRS, Institut de Pharmacologie Moléculaire et Cellulaire (IPMC), UMR-7275, 660 route des Lucioles, 06560 Sophia-Antipolis, France.,University of Nice-Sophia-Antipolis (UNS), Institut de Pharmacologie Moléculaire et Cellulaire, 660 route des Lucioles, Valbonne, 06560 Sophia-Antipolis, France
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