Targeting phospholipase D pharmacologicallly prevents phagocytic function loss of retinal pigment epithelium cells exposed to high glucose levels
- Autores
- Tenconi, Paula Estefania; Bermudez, Vicente; Echevarria, Maria Sol; Asatryan, Aram; Calandria, Jorgelina; Giusto, Norma Maria; Bazan, Nicolas G.; Mateos, Melina Valeria
- Año de publicación
- 2022
- Idioma
- inglés
- Tipo de recurso
- documento de conferencia
- Estado
- versión publicada
- Descripción
- Objective: Inflammation and oxidative stress are a key factor in retinal and ocular diseases. We previously described the participation of classical phospholipase D isoforms (PLD1 and PLD2) in the inflammatory response of human retinal pigment epithelium (RPE) cells exposed to high glucose concentrations (HG). The aim of this work was to study the role of the PLD pathway in RPE phagocytic function. Materials and Methods: Two human RPE cell lines were used, ARPE-19 and ABC cells. ARPE-19 cells were exposed to HG (33 mM) or to normal glucose concentration (NG, 5.5 mM, control condition) for 24, 48 or 72 h and then non-specific phagocytosis was measured using pHrodo™ green bioparticles®. Also, photoreceptor outer segments (POS) phagocytosis was measured. To inhibit PLD1 and PLD2 cells were treated with 0.5 or 5 μM pharmacological PLD1 (VU0359595 or PLD1i) or PLD2 (VU0285655-1 or PLD2i) selective inhibitors. Also, PLD1 and PLD2 siRNA were used. Cell viability was measured by flow cytometry using propidium iodide (PI). Results: HG exposure for 48 and 72 h reduced phagocytic function of ARPE-19 cells. The loss of function induced by HG was prevented when cells were treated with 5 μM PLD1i or PLD2i. Furthermore, PLD1i and PLD2i did not affect RPE phagocytic function under physiological conditions and were able to prevent the increase in reactive oxygen species (ROS) induced by HG in RPE cells. In addition, RNAseq analyses showed for the first time PLD1 and PLD2 expression in hRPE49 and ABC cells, a novel human RPE cell line. Under physiological conditions, PLD1i and PLD2i did not affect ABC cells viability and partial silencing of both PLDs did not affect ABC cells POS phagocytosis. Conclusion: Our findings demonstrate that PLD1i and PLD2i prevent the loss of phagocytic function of RPE cells exposed to HG, without affecting RPE function or viability under non-inflammatory conditions, pointing to their potential use as therapeutic agents for retinal inflammatory diseases.
Fil: Tenconi, Paula Estefania. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina
Fil: Bermudez, Vicente. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina
Fil: Echevarria, Maria Sol. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina
Fil: Asatryan, Aram. School Of Medicine ; Louisiana State University Health Sciences Center New Orleans;
Fil: Calandria, Jorgelina. School Of Medicine ; Louisiana State University Health Sciences Center New Orleans;
Fil: Giusto, Norma Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina
Fil: Bazan, Nicolas G.. School Of Medicine ; Louisiana State University Health Sciences Center New Orleans;
Fil: Mateos, Melina Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
Reunión Conjunta SAIC SAI & FAIC SAFIS 2022; LXVII Reunión Anual de la Sociedad Argentina de Investigación Clínica; LXX Reunión Anual de la Sociedad Argentina de Inmunología & 3er Congreso Franco Argentino de Inmunología; Reunión Anual 2022 de la Sociedad Argentina de Fisiología
Mar del Plata
Argentina
Sociedad Argentina de Investigación Clínica
Sociedad Argentina de Inmunología
Sociedad Argentina de Fisiología - Materia
-
FOSFOLIPASAS D
RETINA
FAGOCITOSIS
ALTA GLUCOSA - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/228219
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Targeting phospholipase D pharmacologicallly prevents phagocytic function loss of retinal pigment epithelium cells exposed to high glucose levelsTenconi, Paula EstefaniaBermudez, VicenteEchevarria, Maria SolAsatryan, AramCalandria, JorgelinaGiusto, Norma MariaBazan, Nicolas G.Mateos, Melina ValeriaFOSFOLIPASAS DRETINAFAGOCITOSISALTA GLUCOSAhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Objective: Inflammation and oxidative stress are a key factor in retinal and ocular diseases. We previously described the participation of classical phospholipase D isoforms (PLD1 and PLD2) in the inflammatory response of human retinal pigment epithelium (RPE) cells exposed to high glucose concentrations (HG). The aim of this work was to study the role of the PLD pathway in RPE phagocytic function. Materials and Methods: Two human RPE cell lines were used, ARPE-19 and ABC cells. ARPE-19 cells were exposed to HG (33 mM) or to normal glucose concentration (NG, 5.5 mM, control condition) for 24, 48 or 72 h and then non-specific phagocytosis was measured using pHrodo™ green bioparticles®. Also, photoreceptor outer segments (POS) phagocytosis was measured. To inhibit PLD1 and PLD2 cells were treated with 0.5 or 5 μM pharmacological PLD1 (VU0359595 or PLD1i) or PLD2 (VU0285655-1 or PLD2i) selective inhibitors. Also, PLD1 and PLD2 siRNA were used. Cell viability was measured by flow cytometry using propidium iodide (PI). Results: HG exposure for 48 and 72 h reduced phagocytic function of ARPE-19 cells. The loss of function induced by HG was prevented when cells were treated with 5 μM PLD1i or PLD2i. Furthermore, PLD1i and PLD2i did not affect RPE phagocytic function under physiological conditions and were able to prevent the increase in reactive oxygen species (ROS) induced by HG in RPE cells. In addition, RNAseq analyses showed for the first time PLD1 and PLD2 expression in hRPE49 and ABC cells, a novel human RPE cell line. Under physiological conditions, PLD1i and PLD2i did not affect ABC cells viability and partial silencing of both PLDs did not affect ABC cells POS phagocytosis. Conclusion: Our findings demonstrate that PLD1i and PLD2i prevent the loss of phagocytic function of RPE cells exposed to HG, without affecting RPE function or viability under non-inflammatory conditions, pointing to their potential use as therapeutic agents for retinal inflammatory diseases.Fil: Tenconi, Paula Estefania. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; ArgentinaFil: Bermudez, Vicente. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; ArgentinaFil: Echevarria, Maria Sol. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; ArgentinaFil: Asatryan, Aram. School Of Medicine ; Louisiana State University Health Sciences Center New Orleans;Fil: Calandria, Jorgelina. School Of Medicine ; Louisiana State University Health Sciences Center New Orleans;Fil: Giusto, Norma Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; ArgentinaFil: Bazan, Nicolas G.. School Of Medicine ; Louisiana State University Health Sciences Center New Orleans;Fil: Mateos, Melina Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; ArgentinaReunión Conjunta SAIC SAI & FAIC SAFIS 2022; LXVII Reunión Anual de la Sociedad Argentina de Investigación Clínica; LXX Reunión Anual de la Sociedad Argentina de Inmunología & 3er Congreso Franco Argentino de Inmunología; Reunión Anual 2022 de la Sociedad Argentina de FisiologíaMar del PlataArgentinaSociedad Argentina de Investigación ClínicaSociedad Argentina de InmunologíaSociedad Argentina de FisiologíaFundación Revista Medicina2022info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectReuniónJournalhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/228219Targeting phospholipase D pharmacologicallly prevents phagocytic function loss of retinal pigment epithelium cells exposed to high glucose levels; Reunión Conjunta SAIC SAI & FAIC SAFIS 2022; LXVII Reunión Anual de la Sociedad Argentina de Investigación Clínica; LXX Reunión Anual de la Sociedad Argentina de Inmunología & 3er Congreso Franco Argentino de Inmunología; Reunión Anual 2022 de la Sociedad Argentina de Fisiología; Mar del Plata; Argentina; 2022; 307-3070025-76801669-9106CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.saic.org.ar/revista-medicinaNacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:03:50Zoai:ri.conicet.gov.ar:11336/228219instacron: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:34982025-09-29 10:03:50.485CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Targeting phospholipase D pharmacologicallly prevents phagocytic function loss of retinal pigment epithelium cells exposed to high glucose levels |
title |
Targeting phospholipase D pharmacologicallly prevents phagocytic function loss of retinal pigment epithelium cells exposed to high glucose levels |
spellingShingle |
Targeting phospholipase D pharmacologicallly prevents phagocytic function loss of retinal pigment epithelium cells exposed to high glucose levels Tenconi, Paula Estefania FOSFOLIPASAS D RETINA FAGOCITOSIS ALTA GLUCOSA |
title_short |
Targeting phospholipase D pharmacologicallly prevents phagocytic function loss of retinal pigment epithelium cells exposed to high glucose levels |
title_full |
Targeting phospholipase D pharmacologicallly prevents phagocytic function loss of retinal pigment epithelium cells exposed to high glucose levels |
title_fullStr |
Targeting phospholipase D pharmacologicallly prevents phagocytic function loss of retinal pigment epithelium cells exposed to high glucose levels |
title_full_unstemmed |
Targeting phospholipase D pharmacologicallly prevents phagocytic function loss of retinal pigment epithelium cells exposed to high glucose levels |
title_sort |
Targeting phospholipase D pharmacologicallly prevents phagocytic function loss of retinal pigment epithelium cells exposed to high glucose levels |
dc.creator.none.fl_str_mv |
Tenconi, Paula Estefania Bermudez, Vicente Echevarria, Maria Sol Asatryan, Aram Calandria, Jorgelina Giusto, Norma Maria Bazan, Nicolas G. Mateos, Melina Valeria |
author |
Tenconi, Paula Estefania |
author_facet |
Tenconi, Paula Estefania Bermudez, Vicente Echevarria, Maria Sol Asatryan, Aram Calandria, Jorgelina Giusto, Norma Maria Bazan, Nicolas G. Mateos, Melina Valeria |
author_role |
author |
author2 |
Bermudez, Vicente Echevarria, Maria Sol Asatryan, Aram Calandria, Jorgelina Giusto, Norma Maria Bazan, Nicolas G. Mateos, Melina Valeria |
author2_role |
author author author author author author author |
dc.subject.none.fl_str_mv |
FOSFOLIPASAS D RETINA FAGOCITOSIS ALTA GLUCOSA |
topic |
FOSFOLIPASAS D RETINA FAGOCITOSIS ALTA GLUCOSA |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Objective: Inflammation and oxidative stress are a key factor in retinal and ocular diseases. We previously described the participation of classical phospholipase D isoforms (PLD1 and PLD2) in the inflammatory response of human retinal pigment epithelium (RPE) cells exposed to high glucose concentrations (HG). The aim of this work was to study the role of the PLD pathway in RPE phagocytic function. Materials and Methods: Two human RPE cell lines were used, ARPE-19 and ABC cells. ARPE-19 cells were exposed to HG (33 mM) or to normal glucose concentration (NG, 5.5 mM, control condition) for 24, 48 or 72 h and then non-specific phagocytosis was measured using pHrodo™ green bioparticles®. Also, photoreceptor outer segments (POS) phagocytosis was measured. To inhibit PLD1 and PLD2 cells were treated with 0.5 or 5 μM pharmacological PLD1 (VU0359595 or PLD1i) or PLD2 (VU0285655-1 or PLD2i) selective inhibitors. Also, PLD1 and PLD2 siRNA were used. Cell viability was measured by flow cytometry using propidium iodide (PI). Results: HG exposure for 48 and 72 h reduced phagocytic function of ARPE-19 cells. The loss of function induced by HG was prevented when cells were treated with 5 μM PLD1i or PLD2i. Furthermore, PLD1i and PLD2i did not affect RPE phagocytic function under physiological conditions and were able to prevent the increase in reactive oxygen species (ROS) induced by HG in RPE cells. In addition, RNAseq analyses showed for the first time PLD1 and PLD2 expression in hRPE49 and ABC cells, a novel human RPE cell line. Under physiological conditions, PLD1i and PLD2i did not affect ABC cells viability and partial silencing of both PLDs did not affect ABC cells POS phagocytosis. Conclusion: Our findings demonstrate that PLD1i and PLD2i prevent the loss of phagocytic function of RPE cells exposed to HG, without affecting RPE function or viability under non-inflammatory conditions, pointing to their potential use as therapeutic agents for retinal inflammatory diseases. Fil: Tenconi, Paula Estefania. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina Fil: Bermudez, Vicente. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina Fil: Echevarria, Maria Sol. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina Fil: Asatryan, Aram. School Of Medicine ; Louisiana State University Health Sciences Center New Orleans; Fil: Calandria, Jorgelina. School Of Medicine ; Louisiana State University Health Sciences Center New Orleans; Fil: Giusto, Norma Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina Fil: Bazan, Nicolas G.. School Of Medicine ; Louisiana State University Health Sciences Center New Orleans; Fil: Mateos, Melina Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina Reunión Conjunta SAIC SAI & FAIC SAFIS 2022; LXVII Reunión Anual de la Sociedad Argentina de Investigación Clínica; LXX Reunión Anual de la Sociedad Argentina de Inmunología & 3er Congreso Franco Argentino de Inmunología; Reunión Anual 2022 de la Sociedad Argentina de Fisiología Mar del Plata Argentina Sociedad Argentina de Investigación Clínica Sociedad Argentina de Inmunología Sociedad Argentina de Fisiología |
description |
Objective: Inflammation and oxidative stress are a key factor in retinal and ocular diseases. We previously described the participation of classical phospholipase D isoforms (PLD1 and PLD2) in the inflammatory response of human retinal pigment epithelium (RPE) cells exposed to high glucose concentrations (HG). The aim of this work was to study the role of the PLD pathway in RPE phagocytic function. Materials and Methods: Two human RPE cell lines were used, ARPE-19 and ABC cells. ARPE-19 cells were exposed to HG (33 mM) or to normal glucose concentration (NG, 5.5 mM, control condition) for 24, 48 or 72 h and then non-specific phagocytosis was measured using pHrodo™ green bioparticles®. Also, photoreceptor outer segments (POS) phagocytosis was measured. To inhibit PLD1 and PLD2 cells were treated with 0.5 or 5 μM pharmacological PLD1 (VU0359595 or PLD1i) or PLD2 (VU0285655-1 or PLD2i) selective inhibitors. Also, PLD1 and PLD2 siRNA were used. Cell viability was measured by flow cytometry using propidium iodide (PI). Results: HG exposure for 48 and 72 h reduced phagocytic function of ARPE-19 cells. The loss of function induced by HG was prevented when cells were treated with 5 μM PLD1i or PLD2i. Furthermore, PLD1i and PLD2i did not affect RPE phagocytic function under physiological conditions and were able to prevent the increase in reactive oxygen species (ROS) induced by HG in RPE cells. In addition, RNAseq analyses showed for the first time PLD1 and PLD2 expression in hRPE49 and ABC cells, a novel human RPE cell line. Under physiological conditions, PLD1i and PLD2i did not affect ABC cells viability and partial silencing of both PLDs did not affect ABC cells POS phagocytosis. Conclusion: Our findings demonstrate that PLD1i and PLD2i prevent the loss of phagocytic function of RPE cells exposed to HG, without affecting RPE function or viability under non-inflammatory conditions, pointing to their potential use as therapeutic agents for retinal inflammatory diseases. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022 |
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http://hdl.handle.net/11336/228219 Targeting phospholipase D pharmacologicallly prevents phagocytic function loss of retinal pigment epithelium cells exposed to high glucose levels; Reunión Conjunta SAIC SAI & FAIC SAFIS 2022; LXVII Reunión Anual de la Sociedad Argentina de Investigación Clínica; LXX Reunión Anual de la Sociedad Argentina de Inmunología & 3er Congreso Franco Argentino de Inmunología; Reunión Anual 2022 de la Sociedad Argentina de Fisiología; Mar del Plata; Argentina; 2022; 307-307 0025-7680 1669-9106 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/228219 |
identifier_str_mv |
Targeting phospholipase D pharmacologicallly prevents phagocytic function loss of retinal pigment epithelium cells exposed to high glucose levels; Reunión Conjunta SAIC SAI & FAIC SAFIS 2022; LXVII Reunión Anual de la Sociedad Argentina de Investigación Clínica; LXX Reunión Anual de la Sociedad Argentina de Inmunología & 3er Congreso Franco Argentino de Inmunología; Reunión Anual 2022 de la Sociedad Argentina de Fisiología; Mar del Plata; Argentina; 2022; 307-307 0025-7680 1669-9106 CONICET Digital CONICET |
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eng |
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eng |
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dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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