Project description
Innovative blood-brain barrier models to study cerebral malaria
Plasmodium falciparum cerebral malaria (CM) represents the most severe complication, leading to blood-brain barrier (BBB) disruption. Zoonotic P. knowlesi causes CM in the rhesus macaques but neither in humans nor in the long-tail macaques. The red blood cell cytoadhesion to endothelial cells and the release of parasite toxins occur in all three primate hosts, resulting in disparate clinical outcomes. Funded by the Marie Skłodowska-Curie Actions programme, the MAL-ZOO project aims to test the hypotheses that the pathogenic mechanisms of CM in primates are host and parasite-specific. MAL-ZOO will develop innovative microvascular 3D in vitro models using induced pluripotent stem cell technology for the cross-species comparison of the virulence factors during infections.
Objective
Plasmodium falciparum cerebral malaria (CM) is the most severe complication during malaria infections. CM is associated with patient coma and blood-brain barrier (BBB) disruption resulting in brain swelling and patient death. In the zoonotic malaria parasite P. knowlesi, CM is described in rhesus macaques but occurs neither in human infections nor in the natural long-tail macaque reservoir. Infected red blood cell cytoadhesion to endothelial cells and the release of parasite toxins have been described as pathogenic mechanisms of falciparum CM. Both factors are present in P. knowlesi in all three primate hosts, albeit at different levels and result in different clinical outcomes. Therefore, I hypothesize that the pathogenic mechanisms of CM in primates are host and parasite-specific. As in vivo studies are limited to post mortem samples, I aim to develop in MAL-ZOO novel microvascular 3D in vitro models of the human, rhesus macaque and long tail macaque BBB. I will adapt existing differentiation protocols for human induced pluripotent stem cells (iPSC) to generate macaque endothelial cells, astrocytes and pericytes, that will be introduced in a 3D microvascular model. Taking advantage of the microfluidic properties of the devices, I will characterize the dynamics of P. knowlesi cytoadhesion to the endothelium of the three hosts. Afterwards, I will measure the BBB pathogenicity of these two parasites by confocal microscopy, functional permeability assays and RNAseq transcriptional analysis and correlate it to the parasite cytoadhesion levels. The cross-species comparison will be used to highlight species-specific virulence factors during P. falciparum and P. knowlesi infections. This will improve our understanding of the mechanisms leading to P. falciparum CM in humans and the pathogenic potential of zoonotic P. knowlesi malaria.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences biological sciences zoology mammalogy primatology
- medical and health sciences health sciences infectious diseases parasitic diseases malaria
- natural sciences physical sciences optics microscopy
- medical and health sciences medical biotechnology cells technologies stem cells
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Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
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Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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HORIZON.1.2 - Marie Skłodowska-Curie Actions (MSCA)
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
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Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships
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Call for proposal
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(opens in new window) HORIZON-MSCA-2021-PF-01
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69117 Heidelberg
Germany
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