Investigating the cross-species invasion events of monkey malaria parasites into human red blood cells
Plasmodium knowlesi (P. knowlesi), a zoonotic malaria parasite, causes potentially severe symptoms and has shown an increasing incidence of cross-species transmissions in Southeast Asia. Despite the growing concerns of P. knowlesi infections in human red blood cells (RBCs), its invasion events and h...
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sg-ntu-dr.10356-1568642023-02-28T18:09:31Z Investigating the cross-species invasion events of monkey malaria parasites into human red blood cells Devakumar, Aishwarya Peter Preiser School of Biological Sciences PRPreiser@ntu.edu.sg Science::Biological sciences::Microbiology Science::Biological sciences::Molecular biology Plasmodium knowlesi (P. knowlesi), a zoonotic malaria parasite, causes potentially severe symptoms and has shown an increasing incidence of cross-species transmissions in Southeast Asia. Despite the growing concerns of P. knowlesi infections in human red blood cells (RBCs), its invasion events and host-parasites interactions are still unclear. Thus, previous methods used to study P. falciparum invasion were implemented to investigate P. knowlesi blood-stage invasion event. Interestingly, in the presence of cyclic adenosine monophosphate (cAMP) signalling inhibitors, fluorescence plate reader and live microscopy, P. knowlesi demonstrated to activate the same Ca2+ signalling pathway in RBC as P. falciparum via cAMP signalling. G-protein and cAMP-dependent protein kinase catalytic subunit alpha (PKA) are essential members of the pathway. In P. falciparum, the species-specific protein reticulocyte-binding homolog 5 (RH5) binds to basigin to trigger RBC Ca2+ influx but attempts to identify an RH5-like protein were unsuccessful in P. knowlesi. Nevertheless, this study proves the invasion event into human RBC is conserved between species and the ligand that triggers RBC Ca2+ flux in P. knowlesi invasion is likely a membrane protein. Hence, this knowledge can facilitate the development of interventions and reveals information regarding an essential host cell signalling conservation during invasion of Plasmodium parasites. Bachelor of Science in Biological Sciences 2022-04-27T01:00:29Z 2022-04-27T01:00:29Z 2022 Final Year Project (FYP) Devakumar, A. (2022). Investigating the cross-species invasion events of monkey malaria parasites into human red blood cells. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/156864 https://hdl.handle.net/10356/156864 en application/pdf Nanyang Technological University |
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Science::Biological sciences::Microbiology Science::Biological sciences::Molecular biology Devakumar, Aishwarya Investigating the cross-species invasion events of monkey malaria parasites into human red blood cells |
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Plasmodium knowlesi (P. knowlesi), a zoonotic malaria parasite, causes potentially severe symptoms and has shown an increasing incidence of cross-species transmissions in Southeast Asia. Despite the growing concerns of P. knowlesi infections in human red blood cells (RBCs), its invasion events and host-parasites interactions are still unclear. Thus, previous methods used to study P. falciparum invasion were implemented to investigate P. knowlesi blood-stage invasion event. Interestingly, in the presence of cyclic adenosine monophosphate (cAMP) signalling inhibitors, fluorescence plate reader and live microscopy, P. knowlesi demonstrated to activate the same Ca2+ signalling pathway in RBC as P. falciparum via cAMP signalling. G-protein and cAMP-dependent protein kinase catalytic subunit alpha (PKA) are essential members of the pathway. In P. falciparum, the species-specific protein reticulocyte-binding homolog 5 (RH5) binds to basigin to trigger RBC Ca2+ influx but attempts to identify an RH5-like protein were unsuccessful in P. knowlesi. Nevertheless, this study proves the invasion event into human RBC is conserved between species and the ligand that triggers RBC Ca2+ flux in P. knowlesi invasion is likely a membrane protein. Hence, this knowledge can facilitate the development of interventions and reveals information regarding an essential host cell signalling conservation during invasion of Plasmodium parasites. |
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Peter Preiser |
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Peter Preiser Devakumar, Aishwarya |
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Final Year Project |
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Devakumar, Aishwarya |
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Devakumar, Aishwarya |
title |
Investigating the cross-species invasion events of monkey malaria parasites into human red blood cells |
title_short |
Investigating the cross-species invasion events of monkey malaria parasites into human red blood cells |
title_full |
Investigating the cross-species invasion events of monkey malaria parasites into human red blood cells |
title_fullStr |
Investigating the cross-species invasion events of monkey malaria parasites into human red blood cells |
title_full_unstemmed |
Investigating the cross-species invasion events of monkey malaria parasites into human red blood cells |
title_sort |
investigating the cross-species invasion events of monkey malaria parasites into human red blood cells |
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Nanyang Technological University |
publishDate |
2022 |
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https://hdl.handle.net/10356/156864 |
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1759855215989751808 |