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Non-Invasive Surveillance for Plasmodium in Reservoir Macaque
Siregar et al. Malar J (2015) 14:404 DOI 10.1186/s12936-015-0857-2 METHODOLOGY Open Access Non‑invasive surveillance for Plasmodium in reservoir macaque species Josephine E. Siregar1, Christina L. Faust2*, Lydia S. Murdiyarso1, Lis Rosmanah3, Uus Saepuloh3, Andrew P. Dobson2 and Diah Iskandriati3 Abstract Background: Primates are important reservoirs for human diseases, but their infection status and disease dynamics are difficult to track in the wild. Within the last decade, a macaque malaria, Plasmodium knowlesi, has caused disease in hundreds of humans in Southeast Asia. In order to track cases and understand zoonotic risk, it is imperative to be able to quantify infection status in reservoir macaque species. In this study, protocols for the collection of non-invasive samples and isolation of malaria parasites from naturally infected macaques are optimized. Methods: Paired faecal and blood samples from 60 Macaca fascicularis and four Macaca nemestrina were collected. All animals came from Sumatra or Java and were housed in semi-captive breeding colonies around West Java. DNA was extracted from samples using a modified protocol. Nested polymerase chain reactions (PCR) were run to detect Plasmodium using primers targeting mitochondrial DNA. Sensitivity of screening faecal samples for Plasmodium was compared to other studies using Kruskal Wallis tests and logistic regression models. Results: The best primer set was 96.7 % (95 % confidence intervals (CI): 83.3–99.4 %) sensitive for detecting Plasmo- dium in faecal samples of naturally infected macaques (n 30). This is the first study to produce definitive estimates of Plasmodium sensitivity and specificity in faecal samples= from naturally infected hosts. -
P. Falciparum, Replicates Within a Membrane-Bound Intraerythrocytic Parasitophorous Vacuole (PV)
Homing in on getting out: Characterisation of SERA6, a putative malarial protease with a role in egress Andrea Ruecker March 2012 MRC National Institute for Medical Research Division of Parasitology Mill Hill, London NW7 1AA Division of Infection and Immunity University College London This thesis is submitted to University College London for the degree of Doctor of Philosophy 1 Declaration Declaration I, Andrea Ruecker, confirm that the work presented in this thesis is my own. Where information has been derived from other sources, I confirm that this has been indicated in the thesis. Andrea Ruecker 2 Abstract Abstract The human malaria parasite, P. falciparum, replicates within a membrane-bound intraerythrocytic parasitophorous vacuole (PV). The resulting daughter merozoites actively escape from the host cell in a process called egress. There is convincing evidence that proteases are key players in this step. These proteases could serve as excellent targets for the development of new antimalarial drugs. P. falciparum Serine Repeat Antigens (SERAs) form a family of 9 proteins all containing a central papain- like domain that identifies them as putative cysteine proteases. They are highly conserved throughout all Plasmodium species, and there is strong genetic evidence that they may play a role in egress. P. falciparum SERA6 is one of the most highly- expressed SERAs in asexual erythrocyte stages. In this study biochemical fractionation and indirect immunofluorescence analysis were used to confirm localisation of SERA6 to the PV. It was shown that SERA6 is a substrate for PfSUB1, a subtilisin-like protease which is crucial for egress and which is released into the PV just prior to egress. -
A MOLECULAR PHYLOGENY of MALARIAL PARASITES RECOVERED from CYTOCHROME B GENE SEQUENCES
J. Parasitol., 88(5), 2002, pp. 972±978 q American Society of Parasitologists 2002 A MOLECULAR PHYLOGENY OF MALARIAL PARASITES RECOVERED FROM CYTOCHROME b GENE SEQUENCES Susan L. Perkins* and Jos. J. Schall Department of Biology, University of Vermont, Burlington, Vermont 05405. e-mail: [email protected] ABSTRACT: A phylogeny of haemosporidian parasites (phylum Apicomplexa, family Plasmodiidae) was recovered using mito- chondrial cytochrome b gene sequences from 52 species in 4 genera (Plasmodium, Hepatocystis, Haemoproteus, and Leucocy- tozoon), including parasite species infecting mammals, birds, and reptiles from over a wide geographic range. Leucocytozoon species emerged as an appropriate out-group for the other malarial parasites. Both parsimony and maximum-likelihood analyses produced similar phylogenetic trees. Life-history traits and parasite morphology, traditionally used as taxonomic characters, are largely phylogenetically uninformative. The Plasmodium and Hepatocystis species of mammalian hosts form 1 well-supported clade, and the Plasmodium and Haemoproteus species of birds and lizards form a second. Within this second clade, the relation- ships between taxa are more complex. Although jackknife support is weak, the Plasmodium of birds may form 1 clade and the Haemoproteus of birds another clade, but the parasites of lizards fall into several clusters, suggesting a more ancient and complex evolutionary history. The parasites currently placed within the genus Haemoproteus may not be monophyletic. Plasmodium falciparum of humans was not derived from an avian malarial ancestor and, except for its close sister species, P. reichenowi,is only distantly related to haemospordian parasites of all other mammals. Plasmodium is paraphyletic with respect to 2 other genera of malarial parasites, Haemoproteus and Hepatocystis. -
Highly Rearranged Mitochondrial Genome in Nycteria Parasites (Haemosporidia) from Bats
Highly rearranged mitochondrial genome in Nycteria parasites (Haemosporidia) from bats Gregory Karadjiana,1,2, Alexandre Hassaninb,1, Benjamin Saintpierrec, Guy-Crispin Gembu Tungalunad, Frederic Arieye, Francisco J. Ayalaf,3, Irene Landaua, and Linda Duvala,3 aUnité Molécules de Communication et Adaptation des Microorganismes (UMR 7245), Sorbonne Universités, Muséum National d’Histoire Naturelle, CNRS, CP52, 75005 Paris, France; bInstitut de Systématique, Evolution, Biodiversité (UMR 7205), Sorbonne Universités, Muséum National d’Histoire Naturelle, CNRS, Université Pierre et Marie Curie, CP51, 75005 Paris, France; cUnité de Génétique et Génomique des Insectes Vecteurs (CNRS URA3012), Département de Parasites et Insectes Vecteurs, Institut Pasteur, 75015 Paris, France; dFaculté des Sciences, Université de Kisangani, BP 2012 Kisangani, Democratic Republic of Congo; eLaboratoire de Biologie Cellulaire Comparative des Apicomplexes, Faculté de Médicine, Université Paris Descartes, Inserm U1016, CNRS UMR 8104, Cochin Institute, 75014 Paris, France; and fDepartment of Ecology and Evolutionary Biology, University of California, Irvine, CA 92697 Contributed by Francisco J. Ayala, July 6, 2016 (sent for review March 18, 2016; reviewed by Sargis Aghayan and Georges Snounou) Haemosporidia parasites have mostly and abundantly been de- and this lack of knowledge limits the understanding of the scribed using mitochondrial genes, and in particular cytochrome evolutionary history of Haemosporidia, in particular their b (cytb). Failure to amplify the mitochondrial cytb gene of Nycteria basal diversification. parasites isolated from Nycteridae bats has been recently reported. Nycteria parasites have been primarily described, based on Bats are hosts to a diverse and profuse array of Haemosporidia traditional taxonomy, in African insectivorous bats of two fami- parasites that remain largely unstudied. -
Structural and Functional Insights Into Apicomplexan Gliding and Its Regulation
Structural and functional insights into apicomplexan gliding and its regulation Dissertation to obtain the degree of Doctor of Natural Sciences University of Hamburg Faculty of Mathematics, Informatics and Natural Sciences at the Department of Biology by Samuel Pažický from Bratislava, Slovakia Hamburg 2020 Examination commission Examination commission chair Prof. Dr. Jörg Ganzhorn (University of Hamburg) Examination commission members Prof. Jonas Schmidt-Chanasit (Bernhard Nocht Institute for Tropical Medicine and University of Hamburg) Prof. Tim Gilberger (Bernhard Nocht Institute for Tropical Medicine, Centre for Structural Systems Biology and University of Hamburg) Dr. Maria Garcia-Alai (European Molecular Biology Laboratory and Centre for Structural Systems Biology) Dr. Christian Löw (European Molecular Biology Laboratory and Centre for Structural Systems Biology) Date of defence: 29.01.2021 This work was performed at European Molecular Biology Laboratory, Hamburg Unit under the supervision of Dr. Christian Löw and Prof. Tim-Wolf Gilberger. The work was supported by the Joachim Herz Foundation. Evaluation Prof. Dr. rer. nat. Tim-Wolf Gilberger Bernhard Nocht Institute for Tropical Medicine (BNITM) Department of Cellular Parasitology Hamburg Dr. Christian Löw European Molecular Biology Laboratory Hamburg unit Hamburg Prof. Dr. vet. med. Thomas Krey Hannover Medical School Institute of Virology Declaration of academic honesty I hereby declare, on oath, that I have written the present dissertation by my own and have not used other than the acknowledged resources and aids. Eidesstattliche Erklärung Hiermit erkläre ich an Eides statt, dass ich die vorliegende Dissertationsschrift selbst verfasst und keine anderen als die angegebenen Quellen und Hilfsmittel benutzt habe. Hamburg, 22.9.2020 Samuel Pažický List of contents Declaration of academic honesty 4 List of contents 5 Acknowledgements 6 Summary 7 Zusammenfassung 10 List of publications 12 Scientific contribution to the manuscript 14 Abbreviations 16 1. -
Rodent Blood-Stage Plasmodium Survive in Dendritic Cells That Infect Naive Mice
Rodent blood-stage Plasmodium survive in dendritic cells that infect naive mice Michelle N. Wykesa,1, Jason G. Kayb,2,3, Anthony Mandersonb,2,4, Xue Q. Liua,2,5, Darren L. Brownb,2, Derek J. Richarda,2,6, Jiraprapa Wipasac, Suhua H. Jianga,d,e, Malcolm K. Jonesa,f, Chris J. Janseg, Andrew P. Watersh, Susan K. Piercei, Louis H. Millerj,1, Jennifer L. Stowb, and Michael F. Gooda,1,5 aQueensland Institute of Medical Research, Brisbane, Queensland, Australia 4029; bInstitute for Molecular Bioscience, and fSchool of Veterinary Science, University of Queensland, Brisbane, Queensland, Australia 4072; cUniversity of Chiang Mai Research Institute for Health Sciences, Chiang Mai 50200, Thailand; dDepartment of Immunology, Tongji Medical College of Huazhong University of Science and Technology, Wuhan City, Hubei, People’s Republic of China 430030; eDepartment of Pathogenic Biology and Immunology, Shihezi University School of Medicine, Shihezi City, Xinjiang, People’s Republic of China 832002; gDepartment of Parasitology, Center of Infectious Diseases, Leiden University Medical Center, 2333 ZA, Leiden, The Netherlands; hWellcome Centre for Molecular Parasitology and Faculty of Biomedical Life Sciences, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow G12 8TA, Scotland, United Kingdom; and iLaboratory of Immunogenetics, and jHead, Malaria Cell Biology Section, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD 20852 Contributed by Louis H. Miller, June 2, 2011 (sent for review January 28, 2011) Plasmodium spp. parasites cause malaria in 300 to 500 million indi- RBC, but it has long been suspected that they may also have an- viduals each year. Disease occurs during the blood-stage of the other survival strategy. -
Characterization of Plasmodium Falciparum Membrane Transporters As Potential Antimalarial Targets
UNIVERSITÉ PARIS-SUD ÉCOLE DOCTORALE 419 : BIOSIGNE Laboratoire : UMR 8221 - Laboratoire des Protéines Membranaires (CEA Saclay) THÈSE SCIENCES DE LA VIE ET DE LA SANTÉ par Stéphanie CORREIA DE MATOS DAVID BOSNE Characterization of Plasmodium falciparum membrane transporters as potential antimalarial targets Date de soutenance : 10/10/2014 Composition du jury : Directeur de thèse : Christine JAXEL Chercheur CNRS, UMR 8221 CNRS, CEA SACLAY Co-directeur de thèse : Marc le MAIRE Professeur, Université Paris-Sud Président du jury : Oliver NÜSSE Professeur, Université Paris-Sud Rapporteurs : Bruno MIROUX Directeur de Recherches INSERM, IBPC, Paris Martin PICARD Chercheur CNRS, CNRS UMR 8015, Paris Examinateurs : Isabelle FLORENT Professeur MNHN, MNHN Paris Philippe LOISEAU Professeur, Université Paris-Sud 1 2 Merci à tous ceux qui ont rendu cette thèse possible, rien n’aurait été réalisable sans vous ! A minha Mãe, à Alexandre, Pour avoir été présent dans les meilleurs et les pires moments, merci ! 3 4 Index Table of Contents Index ........................................................................................................................................................ 5 Table of Contents .................................................................................................................................... 5 Table of Figures ..................................................................................................................................... 10 Table of Tables...................................................................................................................................... -
Evolutionary History of Human Plasmodium Vivax Revealed by Genome-Wide Analyses of Related Ape Parasites
Evolutionary history of human Plasmodium vivax revealed by genome-wide analyses of related ape parasites Dorothy E. Loya,b,1, Lindsey J. Plenderleithc,d,1, Sesh A. Sundararamana,b, Weimin Liua, Jakub Gruszczyke, Yi-Jun Chend,f, Stephanie Trimbolia, Gerald H. Learna, Oscar A. MacLeanc,d, Alex L. K. Morganc,d, Yingying Lia, Alexa N. Avittoa, Jasmin Gilesa, Sébastien Calvignac-Spencerg, Andreas Sachseg, Fabian H. Leendertzg, Sheri Speedeh, Ahidjo Ayoubai, Martine Peetersi, Julian C. Raynerj, Wai-Hong Thame,f, Paul M. Sharpc,d,2, and Beatrice H. Hahna,b,2,3 aDepartment of Medicine, University of Pennsylvania, Philadelphia, PA 19104; bDepartment of Microbiology, University of Pennsylvania, Philadelphia, PA 19104; cInstitute of Evolutionary Biology, University of Edinburgh, Edinburgh EH9 3FL, United Kingdom; dCentre for Immunity, Infection and Evolution, University of Edinburgh, Edinburgh EH9 3FL, United Kingdom; eWalter and Eliza Hall Institute of Medical Research, Parkville VIC 3052, Australia; fDepartment of Medical Biology, The University of Melbourne, Parkville VIC 3010, Australia; gRobert Koch Institute, 13353 Berlin, Germany; hSanaga-Yong Chimpanzee Rescue Center, International Development Association-Africa, Portland, OR 97208; iRecherche Translationnelle Appliquée au VIH et aux Maladies Infectieuses, Institut de Recherche pour le Développement, University of Montpellier, INSERM, 34090 Montpellier, France; and jMalaria Programme, Wellcome Trust Sanger Institute, Genome Campus, Hinxton Cambridgeshire CB10 1SA, United Kingdom Contributed by Beatrice H. Hahn, July 13, 2018 (sent for review June 12, 2018; reviewed by David Serre and L. David Sibley) Wild-living African apes are endemically infected with parasites most recently in bonobos (Pan paniscus)(7–11). Phylogenetic that are closely related to human Plasmodium vivax,aleadingcause analyses of available sequences revealed that ape and human of malaria outside Africa. -
Potential Vaccine Targets Against Rabbit Coccidiosis by Immunoproteomic Analysis
ISSN (Print) 0023-4001 ISSN (Online) 1738-0006 Korean J Parasitol Vol. 55, No. 1: 15-20, February 2017 ▣ ORIGINAL ARTICLE https://doi.org/10.3347/kjp.2017.55.1.15 Potential Vaccine Targets against Rabbit Coccidiosis by Immunoproteomic Analysis Hongyan Song1, Ronglian Dong2, Baofeng Qiu3, Jin Jing1, Shunxing Zhu1, Chun Liu1, Yingmei Jiang1, 1 1 1 1, Liucheng Wu , Shengcun Wang , Jin Miao , Yixiang Shao * 1Laboratory Animal Center of Nantong University, Nantong 226001, China; 2Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 21009, China; 3Nantong Entry-Exit Inspection and Quarantine Bureau, Nantong 226004, China Abstract: The aim of this study was to identify antigens for a vaccine or drug target to control rabbit coccidiosis. A com- bination of 2-dimensional electrophoresis, immunoblotting, and mass spectrometric analysis were used to identify novel antigens from the sporozoites of Eimeria stiedae. Protein spots were recognized by the sera of New Zealand rabbits in- fected artificially with E. stiedae. The proteins were characterized by matrix-assisted laser desorption ionization time of flight mass spectrometry (MALDI-TOF/TOF-MS) analysis in combination with bioinformatics. Approximately 868 protein spots were detected by silver-staining, and a total of 41 immunoreactive protein spots were recognized by anti-E. stiedae sera. Finally, 23 protein spots were successfully identified. The proteins such as heat shock protein 70 and aspartyl prote- ase may have potential as immunodiagnostic or vaccine antigens. The immunoreactive proteins were found to possess a wide range of biological functions. This study is the first to report the proteins recognized by sera of infected rabbits with E. -
Parasite and Host Traits Predict the Zoonotic Risk of Protozoa
ABSTRACTS SUBMISSION 248_Joy Vaz ‐ University of Georgia ‐ États‐Unis [email protected] Parasite and host traits predict the zoonotic risk of protozoa Joy Vaz, Barbara A. Han, John M. Drake Odum School of Ecology, University of Georgia, Athens, Georgia, USA; Center for the Ecology of Infectious Diseases, University of Georgia, Athens, Georgia, USA; Cary Institute of Ecosystem Studies, Millbrook, New York, USA Protozoan zoonoses such Chagas disease and leishmaniasis remain endemic in large parts of the world, exacerbating social inequity and contributing heavily to the global burden of infectious disease. Novel protozoa species which have emerged from wildlife to humans in the recent decades (e.g., Plasmodium knowlesi, a causal agent of malaria) have proven difficult to control. Our ability to anticipate and prevent future emerging disease threats relies on identifying the characteristics of zoonotic pathogens and targeting surveillance efforts accordingly. While several studies have profiled the traits of zoonotic viruses, protozoa have received limited attention. We compiled a dataset of protozoa species which incorporates both parasite and host traits, including information on community structure and importance within a host‐parasite bipartite network. Using a machine learning algorithm, extreme gradient boosting, we distinguished zoonotic from non‐zoonotic protozoa with 85% accuracy. Our model found that traits of generalist protozoa (e.g., broad tissue tropism, high network centrality, multiple transmission modes) were most useful for predicting zoonotic status, compared to intrinsic biological traits (e.g., morphology), environmental traits (e.g., temperature), or host‐ related traits (e.g., life history). We ranked the zoonotic potential of protozoa species currently not known to be zoonotic based on their trait similarity to known zoonotic protozoa. -
Humans Frequently Exposed to a Range of Non-Human Primate Malaria Parasite Species Through the Bites of Anopheles Dirus Mosquito
Maeno et al. Parasites & Vectors (2015) 8:376 DOI 10.1186/s13071-015-0995-y RESEARCH Open Access Humans frequently exposed to a range of non-human primate malaria parasite species through the bites of Anopheles dirus mosquitoes in South-central Vietnam Yoshimasa Maeno1*,NguyenTuyenQuang2, Richard Culleton3, Satoru Kawai4, Gaku Masuda5, Shusuke Nakazawa6 and Ron P. Marchand2 Abstract Background: Recent studies have described natural human infections of the non-human primate parasites Plasmodium knowlesi and Plasmodium cynomolgi. In Southeast Asia, mosquitoes of the Anopheles leucosphyrus group bite both humans and monkeys in the forest and thus offer a possible route for Plasmodium species to bridge the species barrier. In this study we analysed the species composition of malarial sporozoites infecting the salivary glands of Anopheles dirus in order to determine their potential role as bridge vectors of Plasmodium parasites from monkeys to humans. Methods: Mosquitoes were collected in the forest and forest fringe area of Khanh Phu commune by human-baited landing collection. Anopheles species were determined on the basis of morphologic features. Sporozoite-infected salivary glands were applied to filter paper and dried in an ambient atmosphere, before storage in closed vials at 4–6°C. Detection and identification of Plasmodium species in salivary glands were carried out by nested-PCR of the small subunit ribosomal RNA gene. Results: Six species of Plasmodium parasites were detected by PCR, of which P. vivax was the most common, followed by P. knowlesi, P. inui, P. cynomolgi, P. coatneyi and P. falciparum. Twenty-six of the 79 sporozoite infected mosquitoes showed multiple infections, most of which were a combination of P. -
Comprehensive Sequencing Proposal for Plasmodium
COMPREHENSIVE SEQUENCING PROPOSAL FOR PLASMODIUM PREPARED BY THE PLASMODIUM WRITING GROUP* Executive Summary The malaria parasite is one of the most widespread eukaryotic pathogens in the world today. Malaria remains a major global health threat with an estimated 300 – 500 million cases per year and deaths of over a million children in Africa. Resistance to currently effective drugs—including drugs given in combinations to decrease the spread of resistance—is rapidly expanding. The next five years will see billions of dollars spent implementing interventions, particularly in Africa. Past experience suggests that large scale deployment of control measures will lead to selection for drug resistance in the malaria parasite and insecticide resistance in the mosquito vector. The combined need to have genomic tools to monitor the evolutionary consequences of these large scale interventions and to discover new therapies and diagnostics provides a powerful argument to support the overall goal of this white paper to prepare for malaria disease surveillance and control in the 21st century. We propose here a comprehensive sequencing program with the sequencing of a total of approximately 16 billion base pairs (equivalent to a 5X coverage of the human genome) including significant additional sequencing of Plasmodium falciparum, the most deadly form of human malaria, additional sequencing of Plasmodium vivax, the second most prevalent of the human malarias, and sequencing of selected non- human primate, other mammalian, avian and reptile malarias and related apicomplexan parasites. This sequencing effort will complement both the previous work and the ongoing efforts at the Wellcome Trust Sanger Institute (WTSI) including the sequencing of the P.