Role of indoleamine 2,3-dioxygenase in testicular immune-privilege

Autores
Gualdoni, Gisela Soledad; Jacobo, Patricia Verónica; Sobarzo, Cristian Marcelo; Pérez, Cecilia Valeria; Matzkin, Maria Eugenia; Höcht, Christian; Hill, Marcelo; Anegon, Ignacio; Lustig, Livia; Guazzone, Vanesa Anabella
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Male meiotic germ cell including the spermatozoa represent a great challenge to the immune system, as they appear long after the establishment of normal immune tolerance mechanisms. The capacity of the testes to tolerate autoantigenic germ cells as well as survival of allogeneic organ engrafted in the testicular interstitium have led to consider the testis an immunologically privileged site. Disruption of this immune privilege following trauma, tumor, or autoimmune orchitis often results in male infertility. Strong evidence indicates that indoleamine 2,3-dioxygenase (IDO) has been implicated in fetal and allograft tolerance, tumor immune resistance, and regulation of autoimmune diseases. IDO and tryptophan 2,3-dioxygenase (TDO) catalyze the same rate-limiting step of tryptophan metabolism along a common pathway, which leads to tryptophan starvation and generation of catabolites collectively known as kynurenines. However, the relevance of tryptophan metabolism in testis pathophysiology has not yet been explored. Here we assessed the in vivo role of IDO/TDO in experimental autoimmune orchitis (EAO), a model of autoimmune testicular inflammation and immunologically impaired spermatogenesis. EAO was induced in adult Wistar rats with testicular homogenate and adjuvants. Control (C) rats injected with saline and adjuvants and normal untreated rats (N) were also studied. mRNA expression of IDO decreased in whole testes and in isolated Sertoli cells during EAO. TDO and IDO localization and level of expression in the testis were analyzed by immunostaining and Western blot. TDO is expressed in granulomas from EAO rats, and similar protein levels were observed in N, C, and EAO groups. IDO was detected in mononuclear and endothelial cells and reduced IDO expression was detected in EAO group compared to N and C rats. This phenomenon was concomitant with a significant reduction of IDO activity in EAO testis measured by tryptophan and kynurenine concentrations (HPLC). Finally, in vivo inhibition of IDO with 1-methyl-tryptophan increased severity of the disease, demonstrating down regulation of IDO-based tolerance when testicular immune regulation was disrupted. We present evidence that an IDO-based mechanism is involved in testicular immune privilege.
Fil: Gualdoni, Gisela Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Biomédicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Biomédicas; Argentina. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Biología Celular E Histología. Cátedra de Histología,citología y Embriología Ii; Argentina
Fil: Jacobo, Patricia Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Biomédicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Biomédicas; Argentina. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Biología Celular E Histología. Cátedra de Histología,citología y Embriología Ii; Argentina
Fil: Sobarzo, Cristian Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Biomédicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Biomédicas; Argentina. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Biología Celular E Histología. Cátedra de Histología,citología y Embriología Ii; Argentina
Fil: Pérez, Cecilia Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Biomédicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Biomédicas; Argentina
Fil: Matzkin, Maria Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental; Argentina
Fil: Höcht, Christian. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Farmacología. Cátedra de Farmacología; Argentina
Fil: Hill, Marcelo. Universidad de la República; Uruguay. Instituto Pasteur de Montevideo; Uruguay
Fil: Anegon, Ignacio. Universite de Nantes; Francia. Inserm; Francia
Fil: Lustig, Livia. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Biología Celular E Histología. Cátedra de Histología,citología y Embriología Ii; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Biomédicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Biomédicas; Argentina
Fil: Guazzone, Vanesa Anabella. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Biomédicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Biomédicas; Argentina. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Biología Celular E Histología. Cátedra de Histología,citología y Embriología Ii; Argentina
Materia
TESTIS
INFLAMMATION
ORCHITIS
IDO
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/120279

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spelling Role of indoleamine 2,3-dioxygenase in testicular immune-privilegeGualdoni, Gisela SoledadJacobo, Patricia VerónicaSobarzo, Cristian MarceloPérez, Cecilia ValeriaMatzkin, Maria EugeniaHöcht, ChristianHill, MarceloAnegon, IgnacioLustig, LiviaGuazzone, Vanesa AnabellaTESTISINFLAMMATIONORCHITISIDOhttps://purl.org/becyt/ford/3.1https://purl.org/becyt/ford/3Male meiotic germ cell including the spermatozoa represent a great challenge to the immune system, as they appear long after the establishment of normal immune tolerance mechanisms. The capacity of the testes to tolerate autoantigenic germ cells as well as survival of allogeneic organ engrafted in the testicular interstitium have led to consider the testis an immunologically privileged site. Disruption of this immune privilege following trauma, tumor, or autoimmune orchitis often results in male infertility. Strong evidence indicates that indoleamine 2,3-dioxygenase (IDO) has been implicated in fetal and allograft tolerance, tumor immune resistance, and regulation of autoimmune diseases. IDO and tryptophan 2,3-dioxygenase (TDO) catalyze the same rate-limiting step of tryptophan metabolism along a common pathway, which leads to tryptophan starvation and generation of catabolites collectively known as kynurenines. However, the relevance of tryptophan metabolism in testis pathophysiology has not yet been explored. Here we assessed the in vivo role of IDO/TDO in experimental autoimmune orchitis (EAO), a model of autoimmune testicular inflammation and immunologically impaired spermatogenesis. EAO was induced in adult Wistar rats with testicular homogenate and adjuvants. Control (C) rats injected with saline and adjuvants and normal untreated rats (N) were also studied. mRNA expression of IDO decreased in whole testes and in isolated Sertoli cells during EAO. TDO and IDO localization and level of expression in the testis were analyzed by immunostaining and Western blot. TDO is expressed in granulomas from EAO rats, and similar protein levels were observed in N, C, and EAO groups. IDO was detected in mononuclear and endothelial cells and reduced IDO expression was detected in EAO group compared to N and C rats. This phenomenon was concomitant with a significant reduction of IDO activity in EAO testis measured by tryptophan and kynurenine concentrations (HPLC). Finally, in vivo inhibition of IDO with 1-methyl-tryptophan increased severity of the disease, demonstrating down regulation of IDO-based tolerance when testicular immune regulation was disrupted. We present evidence that an IDO-based mechanism is involved in testicular immune privilege.Fil: Gualdoni, Gisela Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Biomédicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Biomédicas; Argentina. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Biología Celular E Histología. Cátedra de Histología,citología y Embriología Ii; ArgentinaFil: Jacobo, Patricia Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Biomédicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Biomédicas; Argentina. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Biología Celular E Histología. Cátedra de Histología,citología y Embriología Ii; ArgentinaFil: Sobarzo, Cristian Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Biomédicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Biomédicas; Argentina. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Biología Celular E Histología. Cátedra de Histología,citología y Embriología Ii; ArgentinaFil: Pérez, Cecilia Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Biomédicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Biomédicas; ArgentinaFil: Matzkin, Maria Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental; ArgentinaFil: Höcht, Christian. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Farmacología. Cátedra de Farmacología; ArgentinaFil: Hill, Marcelo. Universidad de la República; Uruguay. Instituto Pasteur de Montevideo; UruguayFil: Anegon, Ignacio. Universite de Nantes; Francia. Inserm; FranciaFil: Lustig, Livia. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Biología Celular E Histología. Cátedra de Histología,citología y Embriología Ii; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Biomédicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Biomédicas; ArgentinaFil: Guazzone, Vanesa Anabella. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Biomédicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Biomédicas; Argentina. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Biología Celular E Histología. Cátedra de Histología,citología y Embriología Ii; ArgentinaNatureresearch2019-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/120279Gualdoni, Gisela Soledad; Jacobo, Patricia Verónica; Sobarzo, Cristian Marcelo; Pérez, Cecilia Valeria; Matzkin, Maria Eugenia; et al.; Role of indoleamine 2,3-dioxygenase in testicular immune-privilege; Natureresearch; Scientific Reports; 9; 15919; 10-2019; 1-142045-2322CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.nature.com/articles/s41598-019-52192-8info:eu-repo/semantics/altIdentifier/doi/10.1038/s41598-019-52192-8info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:11:25Zoai:ri.conicet.gov.ar:11336/120279instacron: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:34982025-09-03 10:11:26.083CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Role of indoleamine 2,3-dioxygenase in testicular immune-privilege
title Role of indoleamine 2,3-dioxygenase in testicular immune-privilege
spellingShingle Role of indoleamine 2,3-dioxygenase in testicular immune-privilege
Gualdoni, Gisela Soledad
TESTIS
INFLAMMATION
ORCHITIS
IDO
title_short Role of indoleamine 2,3-dioxygenase in testicular immune-privilege
title_full Role of indoleamine 2,3-dioxygenase in testicular immune-privilege
title_fullStr Role of indoleamine 2,3-dioxygenase in testicular immune-privilege
title_full_unstemmed Role of indoleamine 2,3-dioxygenase in testicular immune-privilege
title_sort Role of indoleamine 2,3-dioxygenase in testicular immune-privilege
dc.creator.none.fl_str_mv Gualdoni, Gisela Soledad
Jacobo, Patricia Verónica
Sobarzo, Cristian Marcelo
Pérez, Cecilia Valeria
Matzkin, Maria Eugenia
Höcht, Christian
Hill, Marcelo
Anegon, Ignacio
Lustig, Livia
Guazzone, Vanesa Anabella
author Gualdoni, Gisela Soledad
author_facet Gualdoni, Gisela Soledad
Jacobo, Patricia Verónica
Sobarzo, Cristian Marcelo
Pérez, Cecilia Valeria
Matzkin, Maria Eugenia
Höcht, Christian
Hill, Marcelo
Anegon, Ignacio
Lustig, Livia
Guazzone, Vanesa Anabella
author_role author
author2 Jacobo, Patricia Verónica
Sobarzo, Cristian Marcelo
Pérez, Cecilia Valeria
Matzkin, Maria Eugenia
Höcht, Christian
Hill, Marcelo
Anegon, Ignacio
Lustig, Livia
Guazzone, Vanesa Anabella
author2_role author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv TESTIS
INFLAMMATION
ORCHITIS
IDO
topic TESTIS
INFLAMMATION
ORCHITIS
IDO
purl_subject.fl_str_mv https://purl.org/becyt/ford/3.1
https://purl.org/becyt/ford/3
dc.description.none.fl_txt_mv Male meiotic germ cell including the spermatozoa represent a great challenge to the immune system, as they appear long after the establishment of normal immune tolerance mechanisms. The capacity of the testes to tolerate autoantigenic germ cells as well as survival of allogeneic organ engrafted in the testicular interstitium have led to consider the testis an immunologically privileged site. Disruption of this immune privilege following trauma, tumor, or autoimmune orchitis often results in male infertility. Strong evidence indicates that indoleamine 2,3-dioxygenase (IDO) has been implicated in fetal and allograft tolerance, tumor immune resistance, and regulation of autoimmune diseases. IDO and tryptophan 2,3-dioxygenase (TDO) catalyze the same rate-limiting step of tryptophan metabolism along a common pathway, which leads to tryptophan starvation and generation of catabolites collectively known as kynurenines. However, the relevance of tryptophan metabolism in testis pathophysiology has not yet been explored. Here we assessed the in vivo role of IDO/TDO in experimental autoimmune orchitis (EAO), a model of autoimmune testicular inflammation and immunologically impaired spermatogenesis. EAO was induced in adult Wistar rats with testicular homogenate and adjuvants. Control (C) rats injected with saline and adjuvants and normal untreated rats (N) were also studied. mRNA expression of IDO decreased in whole testes and in isolated Sertoli cells during EAO. TDO and IDO localization and level of expression in the testis were analyzed by immunostaining and Western blot. TDO is expressed in granulomas from EAO rats, and similar protein levels were observed in N, C, and EAO groups. IDO was detected in mononuclear and endothelial cells and reduced IDO expression was detected in EAO group compared to N and C rats. This phenomenon was concomitant with a significant reduction of IDO activity in EAO testis measured by tryptophan and kynurenine concentrations (HPLC). Finally, in vivo inhibition of IDO with 1-methyl-tryptophan increased severity of the disease, demonstrating down regulation of IDO-based tolerance when testicular immune regulation was disrupted. We present evidence that an IDO-based mechanism is involved in testicular immune privilege.
Fil: Gualdoni, Gisela Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Biomédicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Biomédicas; Argentina. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Biología Celular E Histología. Cátedra de Histología,citología y Embriología Ii; Argentina
Fil: Jacobo, Patricia Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Biomédicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Biomédicas; Argentina. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Biología Celular E Histología. Cátedra de Histología,citología y Embriología Ii; Argentina
Fil: Sobarzo, Cristian Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Biomédicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Biomédicas; Argentina. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Biología Celular E Histología. Cátedra de Histología,citología y Embriología Ii; Argentina
Fil: Pérez, Cecilia Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Biomédicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Biomédicas; Argentina
Fil: Matzkin, Maria Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental; Argentina
Fil: Höcht, Christian. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Farmacología. Cátedra de Farmacología; Argentina
Fil: Hill, Marcelo. Universidad de la República; Uruguay. Instituto Pasteur de Montevideo; Uruguay
Fil: Anegon, Ignacio. Universite de Nantes; Francia. Inserm; Francia
Fil: Lustig, Livia. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Biología Celular E Histología. Cátedra de Histología,citología y Embriología Ii; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Biomédicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Biomédicas; Argentina
Fil: Guazzone, Vanesa Anabella. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Biomédicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Biomédicas; Argentina. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Biología Celular E Histología. Cátedra de Histología,citología y Embriología Ii; Argentina
description Male meiotic germ cell including the spermatozoa represent a great challenge to the immune system, as they appear long after the establishment of normal immune tolerance mechanisms. The capacity of the testes to tolerate autoantigenic germ cells as well as survival of allogeneic organ engrafted in the testicular interstitium have led to consider the testis an immunologically privileged site. Disruption of this immune privilege following trauma, tumor, or autoimmune orchitis often results in male infertility. Strong evidence indicates that indoleamine 2,3-dioxygenase (IDO) has been implicated in fetal and allograft tolerance, tumor immune resistance, and regulation of autoimmune diseases. IDO and tryptophan 2,3-dioxygenase (TDO) catalyze the same rate-limiting step of tryptophan metabolism along a common pathway, which leads to tryptophan starvation and generation of catabolites collectively known as kynurenines. However, the relevance of tryptophan metabolism in testis pathophysiology has not yet been explored. Here we assessed the in vivo role of IDO/TDO in experimental autoimmune orchitis (EAO), a model of autoimmune testicular inflammation and immunologically impaired spermatogenesis. EAO was induced in adult Wistar rats with testicular homogenate and adjuvants. Control (C) rats injected with saline and adjuvants and normal untreated rats (N) were also studied. mRNA expression of IDO decreased in whole testes and in isolated Sertoli cells during EAO. TDO and IDO localization and level of expression in the testis were analyzed by immunostaining and Western blot. TDO is expressed in granulomas from EAO rats, and similar protein levels were observed in N, C, and EAO groups. IDO was detected in mononuclear and endothelial cells and reduced IDO expression was detected in EAO group compared to N and C rats. This phenomenon was concomitant with a significant reduction of IDO activity in EAO testis measured by tryptophan and kynurenine concentrations (HPLC). Finally, in vivo inhibition of IDO with 1-methyl-tryptophan increased severity of the disease, demonstrating down regulation of IDO-based tolerance when testicular immune regulation was disrupted. We present evidence that an IDO-based mechanism is involved in testicular immune privilege.
publishDate 2019
dc.date.none.fl_str_mv 2019-10
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info:eu-repo/semantics/publishedVersion
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info:ar-repo/semantics/articulo
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status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/120279
Gualdoni, Gisela Soledad; Jacobo, Patricia Verónica; Sobarzo, Cristian Marcelo; Pérez, Cecilia Valeria; Matzkin, Maria Eugenia; et al.; Role of indoleamine 2,3-dioxygenase in testicular immune-privilege; Natureresearch; Scientific Reports; 9; 15919; 10-2019; 1-14
2045-2322
CONICET Digital
CONICET
url http://hdl.handle.net/11336/120279
identifier_str_mv Gualdoni, Gisela Soledad; Jacobo, Patricia Verónica; Sobarzo, Cristian Marcelo; Pérez, Cecilia Valeria; Matzkin, Maria Eugenia; et al.; Role of indoleamine 2,3-dioxygenase in testicular immune-privilege; Natureresearch; Scientific Reports; 9; 15919; 10-2019; 1-14
2045-2322
CONICET Digital
CONICET
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