VERO cells harbor a poly-ADP-ribose belt partnering their epithelial adhesion belt

Poly-ADP-ribose (PAR) is a polymer of up to 400 ADP-ribose units synthesized by poly-ADP-ribose-polymerases (PARPs) and degraded by poly-ADP-ribose-glycohydrolase (PARG). Nuclear PAR modulates chromatin compaction, affecting nuclear functions (gene expression, DNA repair). Diverse defined PARP cytop...

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Detalhes bibliográficos
Autores: Lafon Hughes, Laura, Vilchez Larrea, Salomé Catalina, Kun, Alejandra, Fernandez Villamil, Silvia Hebe
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2014
País:Argentina
Recursos:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/44184
Acesso em linha:http://hdl.handle.net/11336/44184
Access Level:acceso abierto
Palavra-chave:Actin
Adherens Junctions
Alpha-catenin
E-cadherin
PAR
PARP
PJ34
Tankyrase
Vinculin
XAV 939
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
id AR_3a00241dce2910f6a2db9fbdcd3becd4
oai_identifier_str oai:ri.conicet.gov.ar:11336/44184
network_acronym_str AR
network_name_str Argentina
repository_id_str
spelling VERO cells harbor a poly-ADP-ribose belt partnering their epithelial adhesion beltLafon Hughes, LauraVilchez Larrea, Salomé CatalinaKun, AlejandraFernandez Villamil, Silvia HebeActinAdherens JunctionsAlpha-cateninE-cadherinPARPARPPJ34TankyraseVinculinXAV 939https://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Poly-ADP-ribose (PAR) is a polymer of up to 400 ADP-ribose units synthesized by poly-ADP-ribose-polymerases (PARPs) and degraded by poly-ADP-ribose-glycohydrolase (PARG). Nuclear PAR modulates chromatin compaction, affecting nuclear functions (gene expression, DNA repair). Diverse defined PARP cytoplasmic allocation patterns contrast with the yet still imprecise PAR distribution and still unclear functions. Based on previous evidence from other models, we hypothesized that PAR could be present in epithelial cells where cadherin-based adherens junctions are linked with the actin cytoskeleton (constituting the adhesion belt). In the present work, we have examined through immunofluorescence and confocal microscopy, the subcellular localization of PAR in an epithelial monkey kidney cell line (VERO). PAR was distinguished colocalizing with actin and vinculin in the epithelial belt, a location that has not been previously reported. Actin filaments disruption with cytochalasin D was paralleled by PAR belt disruption. Conversely, PARP inhibitors 3-aminobenzamide, PJ34 or XAV 939, affected PAR belt synthesis, actin distribution, cell shape and adhesion. Extracellular calcium chelation displayed similar effects. Our results demonstrate the existence of PAR in a novel subcellular localization. An initial interpretation of all the available evidence points towards TNKS-1 as the most probable PAR belt architect, although TNKS-2 involvement cannot be discarded. Forthcoming research will test this hypothesis as well as explore the existence of the PAR belt in other epithelial cells and deepen into its functional implications.Fil: Lafon Hughes, Laura. Instituto de Investigaciones Biológicas "Clemente Estable"; UruguayFil: Vilchez Larrea, Salomé Catalina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular ; ArgentinaFil: Kun, Alejandra. Instituto de Investigaciones Biológicas "Clemente Estable"; Uruguay. Universidad de la República; UruguayFil: Fernandez Villamil, Silvia Hebe. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular ; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Biológica; ArgentinaPeerJ2014-10-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/44184Lafon Hughes, Laura; Vilchez Larrea, Salomé Catalina; Kun, Alejandra; Fernandez Villamil, Silvia Hebe; VERO cells harbor a poly-ADP-ribose belt partnering their epithelial adhesion belt; PeerJ; PeerJ; 2; 14-10-2014; 1-162167-8359CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.7717/peerj.617info:eu-repo/semantics/altIdentifier/url/https://peerj.com/articles/617/info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T14:11:13Zoai:ri.conicet.gov.ar:11336/44184instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982024-05-08 14:11:13.981CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv VERO cells harbor a poly-ADP-ribose belt partnering their epithelial adhesion belt
title VERO cells harbor a poly-ADP-ribose belt partnering their epithelial adhesion belt
spellingShingle VERO cells harbor a poly-ADP-ribose belt partnering their epithelial adhesion belt
Lafon Hughes, Laura
Actin
Adherens Junctions
Alpha-catenin
E-cadherin
PAR
PARP
PJ34
Tankyrase
Vinculin
XAV 939
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
title_short VERO cells harbor a poly-ADP-ribose belt partnering their epithelial adhesion belt
title_full VERO cells harbor a poly-ADP-ribose belt partnering their epithelial adhesion belt
title_fullStr VERO cells harbor a poly-ADP-ribose belt partnering their epithelial adhesion belt
title_full_unstemmed VERO cells harbor a poly-ADP-ribose belt partnering their epithelial adhesion belt
title_sort VERO cells harbor a poly-ADP-ribose belt partnering their epithelial adhesion belt
dc.creator.none.fl_str_mv Lafon Hughes, Laura
Vilchez Larrea, Salomé Catalina
Kun, Alejandra
Fernandez Villamil, Silvia Hebe
author Lafon Hughes, Laura
author_facet Lafon Hughes, Laura
Vilchez Larrea, Salomé Catalina
Kun, Alejandra
Fernandez Villamil, Silvia Hebe
author_role author
author2 Vilchez Larrea, Salomé Catalina
Kun, Alejandra
Fernandez Villamil, Silvia Hebe
author2_role author
author
author
dc.subject.none.fl_str_mv Actin
Adherens Junctions
Alpha-catenin
E-cadherin
PAR
PARP
PJ34
Tankyrase
Vinculin
XAV 939
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
topic Actin
Adherens Junctions
Alpha-catenin
E-cadherin
PAR
PARP
PJ34
Tankyrase
Vinculin
XAV 939
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
description Poly-ADP-ribose (PAR) is a polymer of up to 400 ADP-ribose units synthesized by poly-ADP-ribose-polymerases (PARPs) and degraded by poly-ADP-ribose-glycohydrolase (PARG). Nuclear PAR modulates chromatin compaction, affecting nuclear functions (gene expression, DNA repair). Diverse defined PARP cytoplasmic allocation patterns contrast with the yet still imprecise PAR distribution and still unclear functions. Based on previous evidence from other models, we hypothesized that PAR could be present in epithelial cells where cadherin-based adherens junctions are linked with the actin cytoskeleton (constituting the adhesion belt). In the present work, we have examined through immunofluorescence and confocal microscopy, the subcellular localization of PAR in an epithelial monkey kidney cell line (VERO). PAR was distinguished colocalizing with actin and vinculin in the epithelial belt, a location that has not been previously reported. Actin filaments disruption with cytochalasin D was paralleled by PAR belt disruption. Conversely, PARP inhibitors 3-aminobenzamide, PJ34 or XAV 939, affected PAR belt synthesis, actin distribution, cell shape and adhesion. Extracellular calcium chelation displayed similar effects. Our results demonstrate the existence of PAR in a novel subcellular localization. An initial interpretation of all the available evidence points towards TNKS-1 as the most probable PAR belt architect, although TNKS-2 involvement cannot be discarded. Forthcoming research will test this hypothesis as well as explore the existence of the PAR belt in other epithelial cells and deepen into its functional implications.
publishDate 2014
dc.date.none.fl_str_mv 2014-10-14
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/44184
Lafon Hughes, Laura; Vilchez Larrea, Salomé Catalina; Kun, Alejandra; Fernandez Villamil, Silvia Hebe; VERO cells harbor a poly-ADP-ribose belt partnering their epithelial adhesion belt; PeerJ; PeerJ; 2; 14-10-2014; 1-16
2167-8359
CONICET Digital
CONICET
url http://hdl.handle.net/11336/44184
identifier_str_mv Lafon Hughes, Laura; Vilchez Larrea, Salomé Catalina; Kun, Alejandra; Fernandez Villamil, Silvia Hebe; VERO cells harbor a poly-ADP-ribose belt partnering their epithelial adhesion belt; PeerJ; PeerJ; 2; 14-10-2014; 1-16
2167-8359
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.7717/peerj.617
info:eu-repo/semantics/altIdentifier/url/https://peerj.com/articles/617/
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv PeerJ
publisher.none.fl_str_mv PeerJ
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1799196000679624704
score 15,812429

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