The Trypanosoma cruzi Protein TcHTE Is Critical for Heme Uptake

Autores
Merli, Marcelo Luciano; Pagura, Lucas; Hernandez, Josefina; Barisón, María Julia; Pral, Elizabeth M. F.; Silber, Ariel Mariano; Cricco, Julia Alejandra
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Trypanosoma cruzi, the etiological agent of Chagas' disease, presents nutritional requirements for several metabolites. It requires heme for the biosynthesis of several heme-proteins involved in essential metabolic pathways like mitochondrial cytochromes and respiratory complexes, as well as enzymes involved in the biosynthesis of sterols and unsaturated fatty acids. However, this parasite lacks a complete route for its synthesis. In view of these facts, T. cruzi has to incorporate heme from the environment during its life cycle. In other words, their hosts must supply the heme for heme-protein synthesis. Although the acquisition of heme is a fundamental issue for the parasite’s replication and survival, how this cofactor is imported and distributed is poorly understood. In this work, we used different fluorescent heme analogs to explore heme uptake along the different life-cycle stages of T. cruzi, showing that this parasite imports it during its replicative stages: the epimastigote in the insect vector and the intracellular amastigote in the mammalian host. Also, we identified and characterized a T. cruzi protein (TcHTE) with 55% of sequence similarity to LHR1 (protein involved in L. amazonensis heme transport), which is located in the flagellar pocket, where the transport of nutrients proceeds in trypanosomatids. We postulate TcHTE as a protein involved in improving the efficiency of the heme uptake or trafficking in T. cruzi.
Fil: Merli, Marcelo Luciano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; Argentina
Fil: Pagura, Lucas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; Argentina
Fil: Hernandez, Josefina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; Argentina
Fil: Barisón, María Julia. Universidade Do Sao Paulo. Instituto de Ciencias Biomédicas. Departamento de Parasitología; Brasil
Fil: Pral, Elizabeth M. F.. Universidade Do Sao Paulo. Instituto de Ciencias Biomédicas. Departamento de Parasitología; Brasil
Fil: Silber, Ariel Mariano. Universidade Do Sao Paulo. Instituto de Ciencias Biomédicas. Departamento de Parasitología; Brasil
Fil: Cricco, Julia Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; Argentina
Materia
TRYPANOSOMA CRUZI
HEME TRANSPORT
TCHTE
CHAGAS' DISEASE
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:11336/52485
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/52485
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling The Trypanosoma cruzi Protein TcHTE Is Critical for Heme UptakeMerli, Marcelo LucianoPagura, LucasHernandez, JosefinaBarisón, María JuliaPral, Elizabeth M. F.Silber, Ariel MarianoCricco, Julia AlejandraTRYPANOSOMA CRUZIHEME TRANSPORTTCHTECHAGAS' DISEASEhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Trypanosoma cruzi, the etiological agent of Chagas' disease, presents nutritional requirements for several metabolites. It requires heme for the biosynthesis of several heme-proteins involved in essential metabolic pathways like mitochondrial cytochromes and respiratory complexes, as well as enzymes involved in the biosynthesis of sterols and unsaturated fatty acids. However, this parasite lacks a complete route for its synthesis. In view of these facts, T. cruzi has to incorporate heme from the environment during its life cycle. In other words, their hosts must supply the heme for heme-protein synthesis. Although the acquisition of heme is a fundamental issue for the parasite’s replication and survival, how this cofactor is imported and distributed is poorly understood. In this work, we used different fluorescent heme analogs to explore heme uptake along the different life-cycle stages of T. cruzi, showing that this parasite imports it during its replicative stages: the epimastigote in the insect vector and the intracellular amastigote in the mammalian host. Also, we identified and characterized a T. cruzi protein (TcHTE) with 55% of sequence similarity to LHR1 (protein involved in L. amazonensis heme transport), which is located in the flagellar pocket, where the transport of nutrients proceeds in trypanosomatids. We postulate TcHTE as a protein involved in improving the efficiency of the heme uptake or trafficking in T. cruzi.Fil: Merli, Marcelo Luciano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; ArgentinaFil: Pagura, Lucas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; ArgentinaFil: Hernandez, Josefina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; ArgentinaFil: Barisón, María Julia. Universidade Do Sao Paulo. Instituto de Ciencias Biomédicas. Departamento de Parasitología; BrasilFil: Pral, Elizabeth M. F.. Universidade Do Sao Paulo. Instituto de Ciencias Biomédicas. Departamento de Parasitología; BrasilFil: Silber, Ariel Mariano. Universidade Do Sao Paulo. Instituto de Ciencias Biomédicas. Departamento de Parasitología; BrasilFil: Cricco, Julia Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; ArgentinaPublic Library of Science2016-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/52485Merli, Marcelo Luciano; Pagura, Lucas; Hernandez, Josefina; Barisón, María Julia; Pral, Elizabeth M. F.; et al.; The Trypanosoma cruzi Protein TcHTE Is Critical for Heme Uptake; Public Library of Science; Neglected Tropical Diseases; 10; 1; 1-2016; 1-18; e00043591935-2735CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1371/journal.pntd.0004359info:eu-repo/semantics/altIdentifier/url/http://journals.plos.org/plosntds/article?id=10.1371/journal.pntd.0004359info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:41:43Zoai:ri.conicet.gov.ar:11336/52485instacron: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 10:41:43.862CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The Trypanosoma cruzi Protein TcHTE Is Critical for Heme Uptake
title The Trypanosoma cruzi Protein TcHTE Is Critical for Heme Uptake
spellingShingle The Trypanosoma cruzi Protein TcHTE Is Critical for Heme Uptake
Merli, Marcelo Luciano
TRYPANOSOMA CRUZI
HEME TRANSPORT
TCHTE
CHAGAS' DISEASE
title_short The Trypanosoma cruzi Protein TcHTE Is Critical for Heme Uptake
title_full The Trypanosoma cruzi Protein TcHTE Is Critical for Heme Uptake
title_fullStr The Trypanosoma cruzi Protein TcHTE Is Critical for Heme Uptake
title_full_unstemmed The Trypanosoma cruzi Protein TcHTE Is Critical for Heme Uptake
title_sort The Trypanosoma cruzi Protein TcHTE Is Critical for Heme Uptake
dc.creator.none.fl_str_mv Merli, Marcelo Luciano
Pagura, Lucas
Hernandez, Josefina
Barisón, María Julia
Pral, Elizabeth M. F.
Silber, Ariel Mariano
Cricco, Julia Alejandra
author Merli, Marcelo Luciano
author_facet Merli, Marcelo Luciano
Pagura, Lucas
Hernandez, Josefina
Barisón, María Julia
Pral, Elizabeth M. F.
Silber, Ariel Mariano
Cricco, Julia Alejandra
author_role author
author2 Pagura, Lucas
Hernandez, Josefina
Barisón, María Julia
Pral, Elizabeth M. F.
Silber, Ariel Mariano
Cricco, Julia Alejandra
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv TRYPANOSOMA CRUZI
HEME TRANSPORT
TCHTE
CHAGAS' DISEASE
topic TRYPANOSOMA CRUZI
HEME TRANSPORT
TCHTE
CHAGAS' DISEASE
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Trypanosoma cruzi, the etiological agent of Chagas' disease, presents nutritional requirements for several metabolites. It requires heme for the biosynthesis of several heme-proteins involved in essential metabolic pathways like mitochondrial cytochromes and respiratory complexes, as well as enzymes involved in the biosynthesis of sterols and unsaturated fatty acids. However, this parasite lacks a complete route for its synthesis. In view of these facts, T. cruzi has to incorporate heme from the environment during its life cycle. In other words, their hosts must supply the heme for heme-protein synthesis. Although the acquisition of heme is a fundamental issue for the parasite’s replication and survival, how this cofactor is imported and distributed is poorly understood. In this work, we used different fluorescent heme analogs to explore heme uptake along the different life-cycle stages of T. cruzi, showing that this parasite imports it during its replicative stages: the epimastigote in the insect vector and the intracellular amastigote in the mammalian host. Also, we identified and characterized a T. cruzi protein (TcHTE) with 55% of sequence similarity to LHR1 (protein involved in L. amazonensis heme transport), which is located in the flagellar pocket, where the transport of nutrients proceeds in trypanosomatids. We postulate TcHTE as a protein involved in improving the efficiency of the heme uptake or trafficking in T. cruzi.
Fil: Merli, Marcelo Luciano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; Argentina
Fil: Pagura, Lucas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; Argentina
Fil: Hernandez, Josefina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; Argentina
Fil: Barisón, María Julia. Universidade Do Sao Paulo. Instituto de Ciencias Biomédicas. Departamento de Parasitología; Brasil
Fil: Pral, Elizabeth M. F.. Universidade Do Sao Paulo. Instituto de Ciencias Biomédicas. Departamento de Parasitología; Brasil
Fil: Silber, Ariel Mariano. Universidade Do Sao Paulo. Instituto de Ciencias Biomédicas. Departamento de Parasitología; Brasil
Fil: Cricco, Julia Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; Argentina
description Trypanosoma cruzi, the etiological agent of Chagas' disease, presents nutritional requirements for several metabolites. It requires heme for the biosynthesis of several heme-proteins involved in essential metabolic pathways like mitochondrial cytochromes and respiratory complexes, as well as enzymes involved in the biosynthesis of sterols and unsaturated fatty acids. However, this parasite lacks a complete route for its synthesis. In view of these facts, T. cruzi has to incorporate heme from the environment during its life cycle. In other words, their hosts must supply the heme for heme-protein synthesis. Although the acquisition of heme is a fundamental issue for the parasite’s replication and survival, how this cofactor is imported and distributed is poorly understood. In this work, we used different fluorescent heme analogs to explore heme uptake along the different life-cycle stages of T. cruzi, showing that this parasite imports it during its replicative stages: the epimastigote in the insect vector and the intracellular amastigote in the mammalian host. Also, we identified and characterized a T. cruzi protein (TcHTE) with 55% of sequence similarity to LHR1 (protein involved in L. amazonensis heme transport), which is located in the flagellar pocket, where the transport of nutrients proceeds in trypanosomatids. We postulate TcHTE as a protein involved in improving the efficiency of the heme uptake or trafficking in T. cruzi.
publishDate 2016
dc.date.none.fl_str_mv 2016-01
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/11336/52485
Merli, Marcelo Luciano; Pagura, Lucas; Hernandez, Josefina; Barisón, María Julia; Pral, Elizabeth M. F.; et al.; The Trypanosoma cruzi Protein TcHTE Is Critical for Heme Uptake; Public Library of Science; Neglected Tropical Diseases; 10; 1; 1-2016; 1-18; e0004359
1935-2735
CONICET Digital
CONICET
url http://hdl.handle.net/11336/52485
identifier_str_mv Merli, Marcelo Luciano; Pagura, Lucas; Hernandez, Josefina; Barisón, María Julia; Pral, Elizabeth M. F.; et al.; The Trypanosoma cruzi Protein TcHTE Is Critical for Heme Uptake; Public Library of Science; Neglected Tropical Diseases; 10; 1; 1-2016; 1-18; e0004359
1935-2735
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1371/journal.pntd.0004359
info:eu-repo/semantics/altIdentifier/url/http://journals.plos.org/plosntds/article?id=10.1371/journal.pntd.0004359
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Public Library of Science
publisher.none.fl_str_mv Public Library of Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
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
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score 13.070432

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