WNT-FRIZZLED-LRP5/6 Signaling Mediates Posterior Fate and Proliferation during Planarian Regeneration

An organizer is defined as a group of cells that secrete extracellular proteins that specify the fate of surrounding cells according to their concentration. Their function during embryogenesis is key in patterning new growing tissues. Although organizers should also participate in adult development...

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Main Authors: Eudald Pascual-Carreras, Miquel Sureda-Gómez, Ramon Barrull-Mascaró, Natàlia Jordà, Maria Gelabert, Pablo Coronel-Córdoba, Emili Saló, Teresa Adell
Format: Article
Language:English
Published: MDPI AG 2021-01-01
Series:Genes
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Online Access:https://www.mdpi.com/2073-4425/12/1/101
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author Eudald Pascual-Carreras
Miquel Sureda-Gómez
Ramon Barrull-Mascaró
Natàlia Jordà
Maria Gelabert
Pablo Coronel-Córdoba
Emili Saló
Teresa Adell
author_facet Eudald Pascual-Carreras
Miquel Sureda-Gómez
Ramon Barrull-Mascaró
Natàlia Jordà
Maria Gelabert
Pablo Coronel-Córdoba
Emili Saló
Teresa Adell
author_sort Eudald Pascual-Carreras
collection DOAJ
description An organizer is defined as a group of cells that secrete extracellular proteins that specify the fate of surrounding cells according to their concentration. Their function during embryogenesis is key in patterning new growing tissues. Although organizers should also participate in adult development when new structures are regenerated, their presence in adults has only been identified in a few species with striking regenerative abilities, such as planarians. Planarians provide a unique model to understand the function of adult organizers, since the presence of adult pluripotent stem cells provides them with the ability to regenerate any body part. Previous studies have shown that the differential activation of the WNT/β-catenin signal in each wound is fundamental to establish an anterior or a posterior organizer in the corresponding wound. Here, we identify the receptors that mediate the WNT/β-catenin signal in posterior-facing wounds. We found that Wnt1-Fzd1-LRP5/6 signaling is evolutionarily conserved in executing a WNT/β-catenin signal to specify cell fate and to trigger a proliferative response. Our data allow a better understanding of the mechanism through which organizers signal to a “competent” field of cells and integrate the patterning and growth required during de novo formation of organs and tissues.
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spelling doaj.art-f7c4e5f532e449d68991a051414995912023-12-03T13:20:57ZengMDPI AGGenes2073-44252021-01-0112110110.3390/genes12010101WNT-FRIZZLED-LRP5/6 Signaling Mediates Posterior Fate and Proliferation during Planarian RegenerationEudald Pascual-Carreras0Miquel Sureda-Gómez1Ramon Barrull-Mascaró2Natàlia Jordà3Maria Gelabert4Pablo Coronel-Córdoba5Emili Saló6Teresa Adell7Department of Genetics, Microbiology and Statistics and Institute of Biomedicine, Universitat de Barcelona, 08028 Barcelona, Catalunya, SpainDepartment of Genetics, Microbiology and Statistics and Institute of Biomedicine, Universitat de Barcelona, 08028 Barcelona, Catalunya, SpainDepartment of Genetics, Microbiology and Statistics and Institute of Biomedicine, Universitat de Barcelona, 08028 Barcelona, Catalunya, SpainDepartment of Genetics, Microbiology and Statistics and Institute of Biomedicine, Universitat de Barcelona, 08028 Barcelona, Catalunya, SpainDepartment of Genetics, Microbiology and Statistics and Institute of Biomedicine, Universitat de Barcelona, 08028 Barcelona, Catalunya, SpainDepartment of Genetics, Microbiology and Statistics and Institute of Biomedicine, Universitat de Barcelona, 08028 Barcelona, Catalunya, SpainDepartment of Genetics, Microbiology and Statistics and Institute of Biomedicine, Universitat de Barcelona, 08028 Barcelona, Catalunya, SpainDepartment of Genetics, Microbiology and Statistics and Institute of Biomedicine, Universitat de Barcelona, 08028 Barcelona, Catalunya, SpainAn organizer is defined as a group of cells that secrete extracellular proteins that specify the fate of surrounding cells according to their concentration. Their function during embryogenesis is key in patterning new growing tissues. Although organizers should also participate in adult development when new structures are regenerated, their presence in adults has only been identified in a few species with striking regenerative abilities, such as planarians. Planarians provide a unique model to understand the function of adult organizers, since the presence of adult pluripotent stem cells provides them with the ability to regenerate any body part. Previous studies have shown that the differential activation of the WNT/β-catenin signal in each wound is fundamental to establish an anterior or a posterior organizer in the corresponding wound. Here, we identify the receptors that mediate the WNT/β-catenin signal in posterior-facing wounds. We found that Wnt1-Fzd1-LRP5/6 signaling is evolutionarily conserved in executing a WNT/β-catenin signal to specify cell fate and to trigger a proliferative response. Our data allow a better understanding of the mechanism through which organizers signal to a “competent” field of cells and integrate the patterning and growth required during de novo formation of organs and tissues.https://www.mdpi.com/2073-4425/12/1/101Wnt pathwayWnt receptorsposterior fateproliferationregenerationplanarians
spellingShingle Eudald Pascual-Carreras
Miquel Sureda-Gómez
Ramon Barrull-Mascaró
Natàlia Jordà
Maria Gelabert
Pablo Coronel-Córdoba
Emili Saló
Teresa Adell
WNT-FRIZZLED-LRP5/6 Signaling Mediates Posterior Fate and Proliferation during Planarian Regeneration
Genes
Wnt pathway
Wnt receptors
posterior fate
proliferation
regeneration
planarians
title WNT-FRIZZLED-LRP5/6 Signaling Mediates Posterior Fate and Proliferation during Planarian Regeneration
title_full WNT-FRIZZLED-LRP5/6 Signaling Mediates Posterior Fate and Proliferation during Planarian Regeneration
title_fullStr WNT-FRIZZLED-LRP5/6 Signaling Mediates Posterior Fate and Proliferation during Planarian Regeneration
title_full_unstemmed WNT-FRIZZLED-LRP5/6 Signaling Mediates Posterior Fate and Proliferation during Planarian Regeneration
title_short WNT-FRIZZLED-LRP5/6 Signaling Mediates Posterior Fate and Proliferation during Planarian Regeneration
title_sort wnt frizzled lrp5 6 signaling mediates posterior fate and proliferation during planarian regeneration
topic Wnt pathway
Wnt receptors
posterior fate
proliferation
regeneration
planarians
url https://www.mdpi.com/2073-4425/12/1/101
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