Evidence that the <named-content content-type="genus-species">Plasmodium falciparum</named-content> Protein Sortilin Potentially Acts as an Escorter for the Trafficking of the Rhoptry-Associated Membrane Antigen to the Rhoptries

ABSTRACT The rhoptry organelle is critical for the invasion of an erythrocyte by the malaria parasite Plasmodium falciparum. Despite their critical roles, the mechanisms behind their biogenesis are still poorly defined. Our earlier work had suggested that the interaction between the glycosylphosphat...

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Autores principales: Stéphanie Hallée, Justin A. Boddey, Alan F. Cowman, Dave Richard
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Publicado: American Society for Microbiology 2018
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spelling oai:doaj.org-article:aa0f0f452c7c44d586f0218801e736c42021-11-15T15:22:01ZEvidence that the <named-content content-type="genus-species">Plasmodium falciparum</named-content> Protein Sortilin Potentially Acts as an Escorter for the Trafficking of the Rhoptry-Associated Membrane Antigen to the Rhoptries10.1128/mSphere.00551-172379-5042https://doaj.org/article/aa0f0f452c7c44d586f0218801e736c42018-02-01T00:00:00Zhttps://journals.asm.org/doi/10.1128/mSphere.00551-17https://doaj.org/toc/2379-5042ABSTRACT The rhoptry organelle is critical for the invasion of an erythrocyte by the malaria parasite Plasmodium falciparum. Despite their critical roles, the mechanisms behind their biogenesis are still poorly defined. Our earlier work had suggested that the interaction between the glycosylphosphatidylinositol (GPI)-anchored rhoptry-associated membrane antigen (RAMA) and the soluble rhoptry-associated protein 1 was involved in the transport of the latter from the Golgi apparatus to the rhoptry. However, how this protein complex could interact with the intracellular trafficking machinery was unknown at this stage. Here we show that the P. falciparum homologue of the transmembrane protein sortilin-VPS10 interacts with regions of RAMA that are sufficient to target a fluorescent reporter to the rhoptries. These results suggest that P. falciparum sortilin (PfSortilin) could potentially act as the escorter for the transport of rhoptry-destined cargo. IMPORTANCE The malaria parasite is a massive burden in several parts of the world. Worryingly, the parasite has become resistant to several of the drugs commonly used to treat the disease, and at this time, there is no commercial vaccine. It is therefore critical to identify new targets for the development of antimalarials. To survive in the human body, the malaria parasite needs to invade red blood cells. For this, it uses a variety of effectors stored in organelles forming a structure called the apical complex. The mechanisms behind how the parasite generates the apical complex are poorly understood. In this study, we present evidence that a transmembrane protein called sortilin potentially acts as an escorter to transport proteins from the Golgi apparatus to the rhoptries, a component of the apical complex. Our study provides new insight into the biogenesis of a critical structure of the malaria parasite.Stéphanie HalléeJustin A. BoddeyAlan F. CowmanDave RichardAmerican Society for Microbiologyarticlemalariasortilinprotein traffickingMicrobiologyQR1-502ENmSphere, Vol 3, Iss 1 (2018)
institution DOAJ
collection DOAJ
language EN
topic malaria
sortilin
protein trafficking
Microbiology
QR1-502
spellingShingle malaria
sortilin
protein trafficking
Microbiology
QR1-502
Stéphanie Hallée
Justin A. Boddey
Alan F. Cowman
Dave Richard
Evidence that the <named-content content-type="genus-species">Plasmodium falciparum</named-content> Protein Sortilin Potentially Acts as an Escorter for the Trafficking of the Rhoptry-Associated Membrane Antigen to the Rhoptries
description ABSTRACT The rhoptry organelle is critical for the invasion of an erythrocyte by the malaria parasite Plasmodium falciparum. Despite their critical roles, the mechanisms behind their biogenesis are still poorly defined. Our earlier work had suggested that the interaction between the glycosylphosphatidylinositol (GPI)-anchored rhoptry-associated membrane antigen (RAMA) and the soluble rhoptry-associated protein 1 was involved in the transport of the latter from the Golgi apparatus to the rhoptry. However, how this protein complex could interact with the intracellular trafficking machinery was unknown at this stage. Here we show that the P. falciparum homologue of the transmembrane protein sortilin-VPS10 interacts with regions of RAMA that are sufficient to target a fluorescent reporter to the rhoptries. These results suggest that P. falciparum sortilin (PfSortilin) could potentially act as the escorter for the transport of rhoptry-destined cargo. IMPORTANCE The malaria parasite is a massive burden in several parts of the world. Worryingly, the parasite has become resistant to several of the drugs commonly used to treat the disease, and at this time, there is no commercial vaccine. It is therefore critical to identify new targets for the development of antimalarials. To survive in the human body, the malaria parasite needs to invade red blood cells. For this, it uses a variety of effectors stored in organelles forming a structure called the apical complex. The mechanisms behind how the parasite generates the apical complex are poorly understood. In this study, we present evidence that a transmembrane protein called sortilin potentially acts as an escorter to transport proteins from the Golgi apparatus to the rhoptries, a component of the apical complex. Our study provides new insight into the biogenesis of a critical structure of the malaria parasite.
format article
author Stéphanie Hallée
Justin A. Boddey
Alan F. Cowman
Dave Richard
author_facet Stéphanie Hallée
Justin A. Boddey
Alan F. Cowman
Dave Richard
author_sort Stéphanie Hallée
title Evidence that the <named-content content-type="genus-species">Plasmodium falciparum</named-content> Protein Sortilin Potentially Acts as an Escorter for the Trafficking of the Rhoptry-Associated Membrane Antigen to the Rhoptries
title_short Evidence that the <named-content content-type="genus-species">Plasmodium falciparum</named-content> Protein Sortilin Potentially Acts as an Escorter for the Trafficking of the Rhoptry-Associated Membrane Antigen to the Rhoptries
title_full Evidence that the <named-content content-type="genus-species">Plasmodium falciparum</named-content> Protein Sortilin Potentially Acts as an Escorter for the Trafficking of the Rhoptry-Associated Membrane Antigen to the Rhoptries
title_fullStr Evidence that the <named-content content-type="genus-species">Plasmodium falciparum</named-content> Protein Sortilin Potentially Acts as an Escorter for the Trafficking of the Rhoptry-Associated Membrane Antigen to the Rhoptries
title_full_unstemmed Evidence that the <named-content content-type="genus-species">Plasmodium falciparum</named-content> Protein Sortilin Potentially Acts as an Escorter for the Trafficking of the Rhoptry-Associated Membrane Antigen to the Rhoptries
title_sort evidence that the <named-content content-type="genus-species">plasmodium falciparum</named-content> protein sortilin potentially acts as an escorter for the trafficking of the rhoptry-associated membrane antigen to the rhoptries
publisher American Society for Microbiology
publishDate 2018
url https://doaj.org/article/aa0f0f452c7c44d586f0218801e736c4
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