Hydatid fluid from Echinococcus granulosus induce the autophagy process in dendritic cells and promote antigen presentation and T- cell proliferation
- Autores
- Chop, Maia; Plá, Natalia; Loos, Julia Alexandra; Nicolao, María Celeste; Cumino, Andrea Carina; Rodríguez Rodrígues, Christian Fernando Ariel
- Año de publicación
- 2020
- Idioma
- inglés
- Tipo de recurso
- documento de conferencia
- Estado
- versión publicada
- Descripción
- Background: Autophagy is an important process for the presentation of endogenous and exogenous proteins on MHC I and II molecules, promoting activation of CD8+ and CD4+ T cells respectively. The aim of this work is to analyze if hydatid fluid (HF) from Echinococcus, constituted by a wide range of parasite proteins could trigger autophagy improving antigen presentation and T cell proliferation. Methods: BMDCs were cultured in complete RPMI. Hydatid fluid (HF) was punctured from the hydatid cysts collected of infected cattle slaughtered. Antigen uptake was measured with (FITC-OVA) in BMDCs using a standard method. HF-stimulated BMDCs, were evaluated in autophagy induction and MHC II expression. For it, fixed cells were immunostained with LC3-clone H50 and analyzed them by immunofluorescence confocal microscopy. CFSE-stained splenocytes were co-incubated with BMDCs using a DC: splenocyte ratio of 1:4 Cellular proliferation was assayed after 4 days of culture by flow cytometry. Results: First, we evaluated if stimulation of HF during 18 h in BMDCs, induce different rates of antigen uptake. Effectively, the presence of Echinococcus antigens induces a markedly decreased OVA-uptake compared to control (**p <0.01, n=3). Next, we studied if stimulation with Eg antigens induces changes in the basal level of autophagy. HF-stimulated BMDCs significantly enhanced the mean fluorescence intensity of MHC II and LC3 and showed a trend in the increment of number and the average size of LC3-positive structures in comparison with unstimulated cells (*p<0.05, **p<0.01, ***p<0.001 HF-stimulated cells vs controls). Finally, we observed that culture splenocytes in the presence of stimulated DC induce their proliferation % CFSE+ cells CTRL:99%, HF:55% (***p<0.001, n=3). Conclusions: These data suggest that HF of Echinococcus induces an increase in autophagy processes promoting the presentation of exogenous antigens presented in MHC II molecules to improve T cell proliferation.
Fil: Chop, Maia. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina
Fil: Plá, Natalia. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Química; Argentina
Fil: Loos, Julia Alexandra. Universidad Nacional de Mar del Plata. Instituto de Investigaciones En Produccion, Sanidad y Ambiente. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Mar del Plata. Instituto de Investigaciones En Produccion, Sanidad y Ambiente.; Argentina
Fil: Nicolao, María Celeste. Universidad Nacional de Mar del Plata. Instituto de Investigaciones En Produccion, Sanidad y Ambiente. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Mar del Plata. Instituto de Investigaciones En Produccion, Sanidad y Ambiente.; Argentina
Fil: Cumino, Andrea Carina. Universidad Nacional de Mar del Plata. Instituto de Investigaciones En Produccion, Sanidad y Ambiente. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Mar del Plata. Instituto de Investigaciones En Produccion, Sanidad y Ambiente.; Argentina
Fil: Rodríguez Rodrígues, Christian Fernando Ariel. Universidad Nacional de Mar del Plata. Instituto de Investigaciones En Produccion, Sanidad y Ambiente. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Mar del Plata. Instituto de Investigaciones En Produccion, Sanidad y Ambiente.; Argentina
LXV Reunión anual de la Sociedad Argentina de Investigación Clínica; LXVII Reunión Anual de la Sociedad Argentina de Inmunología y Reunión anual de la Sociedad Argentina de Fisiología
Mar del Plata
Argentina
Sociedad Argentina de Investigación Clínica
Sociedad Argentina de Inmunología
Sociedad Argentina de Fisiología - Materia
-
Echinococcus granulosus
dendritic cells
hydatic fluid
autophagy - 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:11336/154553
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Hydatid fluid from Echinococcus granulosus induce the autophagy process in dendritic cells and promote antigen presentation and T- cell proliferationChop, MaiaPlá, NataliaLoos, Julia AlexandraNicolao, María CelesteCumino, Andrea CarinaRodríguez Rodrígues, Christian Fernando ArielEchinococcus granulosusdendritic cellshydatic fluidautophagyhttps://purl.org/becyt/ford/3.1https://purl.org/becyt/ford/3Background: Autophagy is an important process for the presentation of endogenous and exogenous proteins on MHC I and II molecules, promoting activation of CD8+ and CD4+ T cells respectively. The aim of this work is to analyze if hydatid fluid (HF) from Echinococcus, constituted by a wide range of parasite proteins could trigger autophagy improving antigen presentation and T cell proliferation. Methods: BMDCs were cultured in complete RPMI. Hydatid fluid (HF) was punctured from the hydatid cysts collected of infected cattle slaughtered. Antigen uptake was measured with (FITC-OVA) in BMDCs using a standard method. HF-stimulated BMDCs, were evaluated in autophagy induction and MHC II expression. For it, fixed cells were immunostained with LC3-clone H50 and analyzed them by immunofluorescence confocal microscopy. CFSE-stained splenocytes were co-incubated with BMDCs using a DC: splenocyte ratio of 1:4 Cellular proliferation was assayed after 4 days of culture by flow cytometry. Results: First, we evaluated if stimulation of HF during 18 h in BMDCs, induce different rates of antigen uptake. Effectively, the presence of Echinococcus antigens induces a markedly decreased OVA-uptake compared to control (**p <0.01, n=3). Next, we studied if stimulation with Eg antigens induces changes in the basal level of autophagy. HF-stimulated BMDCs significantly enhanced the mean fluorescence intensity of MHC II and LC3 and showed a trend in the increment of number and the average size of LC3-positive structures in comparison with unstimulated cells (*p<0.05, **p<0.01, ***p<0.001 HF-stimulated cells vs controls). Finally, we observed that culture splenocytes in the presence of stimulated DC induce their proliferation % CFSE+ cells CTRL:99%, HF:55% (***p<0.001, n=3). Conclusions: These data suggest that HF of Echinococcus induces an increase in autophagy processes promoting the presentation of exogenous antigens presented in MHC II molecules to improve T cell proliferation.Fil: Chop, Maia. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; ArgentinaFil: Plá, Natalia. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Química; ArgentinaFil: Loos, Julia Alexandra. Universidad Nacional de Mar del Plata. Instituto de Investigaciones En Produccion, Sanidad y Ambiente. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Mar del Plata. Instituto de Investigaciones En Produccion, Sanidad y Ambiente.; ArgentinaFil: Nicolao, María Celeste. Universidad Nacional de Mar del Plata. Instituto de Investigaciones En Produccion, Sanidad y Ambiente. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Mar del Plata. Instituto de Investigaciones En Produccion, Sanidad y Ambiente.; ArgentinaFil: Cumino, Andrea Carina. Universidad Nacional de Mar del Plata. Instituto de Investigaciones En Produccion, Sanidad y Ambiente. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Mar del Plata. Instituto de Investigaciones En Produccion, Sanidad y Ambiente.; ArgentinaFil: Rodríguez Rodrígues, Christian Fernando Ariel. Universidad Nacional de Mar del Plata. Instituto de Investigaciones En Produccion, Sanidad y Ambiente. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Mar del Plata. Instituto de Investigaciones En Produccion, Sanidad y Ambiente.; ArgentinaLXV Reunión anual de la Sociedad Argentina de Investigación Clínica; LXVII Reunión Anual de la Sociedad Argentina de Inmunología y Reunión anual de la Sociedad Argentina de FisiologíaMar del PlataArgentinaSociedad Argentina de Investigación ClínicaSociedad Argentina de InmunologíaSociedad Argentina de FisiologíaFundación Revista Medicina2020info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectReuniónJournalhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/154553Hydatid fluid from Echinococcus granulosus induce the autophagy process in dendritic cells and promote antigen presentation and T- cell proliferation; LXV Reunión anual de la Sociedad Argentina de Investigación Clínica; LXVII Reunión Anual de la Sociedad Argentina de Inmunología y Reunión anual de la Sociedad Argentina de Fisiología; Mar del Plata; Argentina; 2020; 153-1530025-76801669-9106CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://inmunologia.org.ar/documentos/pdf/revista_medicina_2020.pdfNacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:37:59Zoai:ri.conicet.gov.ar:11336/154553instacron: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 09:38:00.069CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Hydatid fluid from Echinococcus granulosus induce the autophagy process in dendritic cells and promote antigen presentation and T- cell proliferation |
title |
Hydatid fluid from Echinococcus granulosus induce the autophagy process in dendritic cells and promote antigen presentation and T- cell proliferation |
spellingShingle |
Hydatid fluid from Echinococcus granulosus induce the autophagy process in dendritic cells and promote antigen presentation and T- cell proliferation Chop, Maia Echinococcus granulosus dendritic cells hydatic fluid autophagy |
title_short |
Hydatid fluid from Echinococcus granulosus induce the autophagy process in dendritic cells and promote antigen presentation and T- cell proliferation |
title_full |
Hydatid fluid from Echinococcus granulosus induce the autophagy process in dendritic cells and promote antigen presentation and T- cell proliferation |
title_fullStr |
Hydatid fluid from Echinococcus granulosus induce the autophagy process in dendritic cells and promote antigen presentation and T- cell proliferation |
title_full_unstemmed |
Hydatid fluid from Echinococcus granulosus induce the autophagy process in dendritic cells and promote antigen presentation and T- cell proliferation |
title_sort |
Hydatid fluid from Echinococcus granulosus induce the autophagy process in dendritic cells and promote antigen presentation and T- cell proliferation |
dc.creator.none.fl_str_mv |
Chop, Maia Plá, Natalia Loos, Julia Alexandra Nicolao, María Celeste Cumino, Andrea Carina Rodríguez Rodrígues, Christian Fernando Ariel |
author |
Chop, Maia |
author_facet |
Chop, Maia Plá, Natalia Loos, Julia Alexandra Nicolao, María Celeste Cumino, Andrea Carina Rodríguez Rodrígues, Christian Fernando Ariel |
author_role |
author |
author2 |
Plá, Natalia Loos, Julia Alexandra Nicolao, María Celeste Cumino, Andrea Carina Rodríguez Rodrígues, Christian Fernando Ariel |
author2_role |
author author author author author |
dc.subject.none.fl_str_mv |
Echinococcus granulosus dendritic cells hydatic fluid autophagy |
topic |
Echinococcus granulosus dendritic cells hydatic fluid autophagy |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/3.1 https://purl.org/becyt/ford/3 |
dc.description.none.fl_txt_mv |
Background: Autophagy is an important process for the presentation of endogenous and exogenous proteins on MHC I and II molecules, promoting activation of CD8+ and CD4+ T cells respectively. The aim of this work is to analyze if hydatid fluid (HF) from Echinococcus, constituted by a wide range of parasite proteins could trigger autophagy improving antigen presentation and T cell proliferation. Methods: BMDCs were cultured in complete RPMI. Hydatid fluid (HF) was punctured from the hydatid cysts collected of infected cattle slaughtered. Antigen uptake was measured with (FITC-OVA) in BMDCs using a standard method. HF-stimulated BMDCs, were evaluated in autophagy induction and MHC II expression. For it, fixed cells were immunostained with LC3-clone H50 and analyzed them by immunofluorescence confocal microscopy. CFSE-stained splenocytes were co-incubated with BMDCs using a DC: splenocyte ratio of 1:4 Cellular proliferation was assayed after 4 days of culture by flow cytometry. Results: First, we evaluated if stimulation of HF during 18 h in BMDCs, induce different rates of antigen uptake. Effectively, the presence of Echinococcus antigens induces a markedly decreased OVA-uptake compared to control (**p <0.01, n=3). Next, we studied if stimulation with Eg antigens induces changes in the basal level of autophagy. HF-stimulated BMDCs significantly enhanced the mean fluorescence intensity of MHC II and LC3 and showed a trend in the increment of number and the average size of LC3-positive structures in comparison with unstimulated cells (*p<0.05, **p<0.01, ***p<0.001 HF-stimulated cells vs controls). Finally, we observed that culture splenocytes in the presence of stimulated DC induce their proliferation % CFSE+ cells CTRL:99%, HF:55% (***p<0.001, n=3). Conclusions: These data suggest that HF of Echinococcus induces an increase in autophagy processes promoting the presentation of exogenous antigens presented in MHC II molecules to improve T cell proliferation. Fil: Chop, Maia. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina Fil: Plá, Natalia. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Química; Argentina Fil: Loos, Julia Alexandra. Universidad Nacional de Mar del Plata. Instituto de Investigaciones En Produccion, Sanidad y Ambiente. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Mar del Plata. Instituto de Investigaciones En Produccion, Sanidad y Ambiente.; Argentina Fil: Nicolao, María Celeste. Universidad Nacional de Mar del Plata. Instituto de Investigaciones En Produccion, Sanidad y Ambiente. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Mar del Plata. Instituto de Investigaciones En Produccion, Sanidad y Ambiente.; Argentina Fil: Cumino, Andrea Carina. Universidad Nacional de Mar del Plata. Instituto de Investigaciones En Produccion, Sanidad y Ambiente. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Mar del Plata. Instituto de Investigaciones En Produccion, Sanidad y Ambiente.; Argentina Fil: Rodríguez Rodrígues, Christian Fernando Ariel. Universidad Nacional de Mar del Plata. Instituto de Investigaciones En Produccion, Sanidad y Ambiente. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Mar del Plata. Instituto de Investigaciones En Produccion, Sanidad y Ambiente.; Argentina LXV Reunión anual de la Sociedad Argentina de Investigación Clínica; LXVII Reunión Anual de la Sociedad Argentina de Inmunología y Reunión anual de la Sociedad Argentina de Fisiología Mar del Plata Argentina Sociedad Argentina de Investigación Clínica Sociedad Argentina de Inmunología Sociedad Argentina de Fisiología |
description |
Background: Autophagy is an important process for the presentation of endogenous and exogenous proteins on MHC I and II molecules, promoting activation of CD8+ and CD4+ T cells respectively. The aim of this work is to analyze if hydatid fluid (HF) from Echinococcus, constituted by a wide range of parasite proteins could trigger autophagy improving antigen presentation and T cell proliferation. Methods: BMDCs were cultured in complete RPMI. Hydatid fluid (HF) was punctured from the hydatid cysts collected of infected cattle slaughtered. Antigen uptake was measured with (FITC-OVA) in BMDCs using a standard method. HF-stimulated BMDCs, were evaluated in autophagy induction and MHC II expression. For it, fixed cells were immunostained with LC3-clone H50 and analyzed them by immunofluorescence confocal microscopy. CFSE-stained splenocytes were co-incubated with BMDCs using a DC: splenocyte ratio of 1:4 Cellular proliferation was assayed after 4 days of culture by flow cytometry. Results: First, we evaluated if stimulation of HF during 18 h in BMDCs, induce different rates of antigen uptake. Effectively, the presence of Echinococcus antigens induces a markedly decreased OVA-uptake compared to control (**p <0.01, n=3). Next, we studied if stimulation with Eg antigens induces changes in the basal level of autophagy. HF-stimulated BMDCs significantly enhanced the mean fluorescence intensity of MHC II and LC3 and showed a trend in the increment of number and the average size of LC3-positive structures in comparison with unstimulated cells (*p<0.05, **p<0.01, ***p<0.001 HF-stimulated cells vs controls). Finally, we observed that culture splenocytes in the presence of stimulated DC induce their proliferation % CFSE+ cells CTRL:99%, HF:55% (***p<0.001, n=3). Conclusions: These data suggest that HF of Echinococcus induces an increase in autophagy processes promoting the presentation of exogenous antigens presented in MHC II molecules to improve T cell proliferation. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/conferenceObject Reunión Journal http://purl.org/coar/resource_type/c_5794 info:ar-repo/semantics/documentoDeConferencia |
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http://hdl.handle.net/11336/154553 Hydatid fluid from Echinococcus granulosus induce the autophagy process in dendritic cells and promote antigen presentation and T- cell proliferation; LXV Reunión anual de la Sociedad Argentina de Investigación Clínica; LXVII Reunión Anual de la Sociedad Argentina de Inmunología y Reunión anual de la Sociedad Argentina de Fisiología; Mar del Plata; Argentina; 2020; 153-153 0025-7680 1669-9106 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/154553 |
identifier_str_mv |
Hydatid fluid from Echinococcus granulosus induce the autophagy process in dendritic cells and promote antigen presentation and T- cell proliferation; LXV Reunión anual de la Sociedad Argentina de Investigación Clínica; LXVII Reunión Anual de la Sociedad Argentina de Inmunología y Reunión anual de la Sociedad Argentina de Fisiología; Mar del Plata; Argentina; 2020; 153-153 0025-7680 1669-9106 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
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eng |
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info:eu-repo/semantics/altIdentifier/url/http://inmunologia.org.ar/documentos/pdf/revista_medicina_2020.pdf |
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openAccess |
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https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
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Fundación Revista Medicina |
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Fundación Revista Medicina |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
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dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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