SERIES EDITORS D. ROLLINSON S. I. HAY Department of Zoology, Spatial Epidemiology and Ecology Group, The Natural History Museum, London, UK Tinbergen Building, Department of [email protected] Zoology, University of Oxford, South Parks Road, Oxford, UK [email protected] EDITORIAL BOARD M. G. BASÁÑEZ R. E. SINDEN Reader in Parasite Epidemiology, Immunology and Infection Section, Department of Infectious Disease Department of Biological Sciences, Epidemiology Faculty of Medicine Sir Alexander Fleming Building, Imperial (St Mary’s campus), Imperial College, College of Science, Technology and London, London, UK Medicine, London, UK S. BROOKER D. L. SMITH Wellcome Trust Research Fellow and Johns Hopkins Malaria Research Professor, London School of Hygiene and Institute & Department of Epidemiology, Tropical Medicine, Faculty of Infectious Johns Hopkins Bloomberg School of Public and Tropical, Diseases, London, UK Health, Baltimore, MD, USA R. B. GASSER R. C. A. THOMPSON Department of Veterinary Science, Head, WHO Collaborating Centre for The University of Melbourne, Parkville, the Molecular Epidemiology of Parasitic Victoria, Australia Infections, Principal Investigator, Environmental Biotechnology CRC N. HALL (EBCRC), School of Veterinary and School of Biological Sciences, Biomedical Sciences, Murdoch University, Biosciences Building, University of Murdoch, WA, Australia Liverpool, Liverpool, UK X. N. ZHOU R. C. OLIVEIRA Professor, Director, National Institute of Centro de Pesquisas Rene Rachou/ Parasitic Diseases, Chinese Center for CPqRR - A FIOCRUZ em Minas Gerais, Disease Control and Prevention, Shanghai, Rene Rachou Research Center/CPqRR - People’s Republic of China The Oswaldo Cruz Foundation in the State of Minas Gerais-Brazil, Brazil VOLUME EIGHTY ONE A dvAnces in PARASITOLOGY Edited by S. I. HAY Spatial Epidemiology and Ecology Group Tinbergen Building, Department of Zoology, University of Oxford, South Parks Road, Oxford, UK RIC PRICE Centre of Tropical Medicine, University of Oxford, Oxford, UK J. KEVIN BAIRD Eijkman-Oxford Clinical Research Unit Jalan Diponegoro No. 69 Jakarta, Indonesia AMSTERDAM • BOSTON • HEIDELBERG • LONDON NEW YORK • OXFORD • PARIS • SAN DIEGO SAN FRANCISCO • SINGAPORE • SYDNEY • TOKYO Academic Press is an imprint of Elsevier Academic Press is an imprint of Elsevier The Boulevard, Langford Lane, Kidlington, Oxford, OX5 1GB, UK 32 Jamestown Road, London NW1 7BY, UK Radarweg 29, PO Box 211, 1000 AE Amsterdam, The Netherlands 225 Wyman Street, Waltham, MA 02451, USA 525 B Street, Suite 1800, San Diego, CA 92101-4495, USA First edition 2013 Copyright © 2013 Elsevier Ltd. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by anymeans electronic, mechanical, photocopying, recording or otherwise without the prior written permission of the publisher. Permissions may be sought directly from Elsevier’s Science & Technology Rights Department in Oxford, UK: phone (+44) (0) 1865 843830; fax (+44) (0) 1865 853333; email: [email protected]. Alternatively you can submit your request online by visiting the Elsevier web site at http://elsevier.com/locate/permissions, and selecting Obtaining permission to use Elsevier material. Notice No responsibility is assumed by the publisher for any injury and/or damage to persons or property as a matter of products liability, negligence or otherwise, or from any use or operation of any methods, products, instructions or ideas contained in the material herein. Because of rapid advances in the medical sciences, in particular, independent verification of diagnoses and drug dosages should be made. ISBN: 978-0-12-407826-0 ISSN: 0065-308X For information on all Academic Press publications visit our website at www.store.elsevier.com Printed and bound in UK 13 14 15 10 9 8 7 6 5 4 3 2 1 CONTRIBUTORS Myriam Arevalo-Herrera Caucaseco Research Center, Cali, Colombia J. Kevin Baird Eijkman-Oxford Clinical Research Unit, Jakarta, Indonesia; Centre for Tropical Medicine, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, UK John W. Barnwell Department of Medicine, Division of Infectious Diseases, Emory University School of Medicine, Emory University, Atlanta, Georgia, USA; Centers for Disease Control and Prevention, Malaria Branch, Division of Parasitic Diseases and Malaria, Atlanta, Georgia, USA Katherine E. Battle Department of Zoology, University of Oxford, Oxford, UK Jane M. Carlton Center for Genomics and Systems Biology, Department of Biology, New York University, New York, NY, USA William E. Collins Institutional Association: Malaria Branch, Division of Parasitic Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia Aparup Das Evolutionary Genomics and Bioinformatics Laboratory, Division of Genomics and Bioinformatics, National Institute of Malaria Research (ICMR), Dwarka, New Delhi, India Ananias A. Escalante Center for Evolutionary Medicine and Informatics, The Biodesign Institute, Arizona State University, Tempe, AZ, USA Marcelo U. Ferreira Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo (SP), Brasil Mary R. Galinski Department of Medicine, Division of Infectious Diseases, Emory University School of Medicine, Emory University, Atlanta, Georgia, USA; Emory Vaccine Center, Yerkes National Primate Research Center, Atlanta, Georgia, USA Simon I. Hay Department of Zoology, University of Oxford, Oxford, UK Rosalind E. Howes Department of Zoology, University of Oxford, Oxford, UK ix x Contributors Christopher L. King Center of Global Health & Diseases (CGHD), Case Western Reserve University, V eterans Affairs Medical Center, Cleveland, OH, USA Odile Mercereau-Puijalon Institut Pasteur, Centre National de la Recherche Scientifique Unité de Recherche Associée, Unité d’Immunologie Moléculaire des Parasites, Paris, France Esmeralda V.S. Meyer Emory Vaccine Center, Yerkes National Primate Research Center, Atlanta, Georgia, USA Ivo Mueller Walter + Eliza Hall Institute, Infection & Immunity Division, Parkville, Victoria, Australia; Barcelona Centre for International Health Research (CRESIB, Hospital Clínic-Universitat de Barcelona), Barcelona, Spain Jean-Louis Pérignon Inserm, UMR-S 945, Paris, France; Faculté de Médecine Pitié-Salpêtrière, Université Pierre et Marie Curie-Paris 6, CHU Pitié-Salpêtrière, Paris, France; Faculté de Médecine Paris 5, Université René Descartes-Paris 5, CHU Necker-Enfants Malades, Paris, France Ari W. Satyagraha Eijkman Institute for Molecular Biology, Jakarta, Indonesia Georges Snounou Inserm, UMR-S 945, Paris, France; Faculté de Médecine Pitié-Salpêtrière, Université Pierre et Marie Curie-Paris 6, CHU Pitié-Salpêtrière, Paris, France Takafumi Tsuboi Cell-Free Science and Technology Research Center and Venture Business Laboratory, Ehime University, Matsuyama, Ehime, Japan Peter A. Zimmerman Center for Global Health & Diseases, Case Western Reserve University, Cleveland, Ohio, USA PREFACE The epidemiology of Plasmodium vivax: history, hiatus and hubris forms is a two volume special issue of Advances in Parasitology on the epidemiology of P. vivax. The aim of the review collection is to present a contemporary sum- mary of what is known about P. vivax, with the challenge set to the authors to (1) retrieve what has been ‘lost’ from ‘history’, (2) summarize objectively the current state of knowledge including the reasons for the ‘hiatus’ in inter- est and; (3) identify research gaps/directions/priorities to gently temper the prevailing ‘hubris’ with respect to control and elimination. Part A (volume 80) was published in December 2012. It was composed of six chapters and dealt principally with the most practical dimensions of vivax malaria, describing the epidemiology, clinical consequences, treat- ment, and control strategies shaped by the biology of the parasite. Part B (volume 81) is published here and brings together a further six chapters that investigate more fully aspects of the parasite life cycle, innate and inherited aspects that confer host resistance to P. vivax infection, the epidemiological importance of G6PD deficiency, what is known about the genome of P. vivax and finally the lessons that can still be learned from the interpreta- tion of the old neurosyphilis literature. Chapter 1 by Mary R. Galinski and colleagues looks in detail at the para- site’s life cycle, how it is adapted to its life history challenges and how this dif- ferentiates it from P. falciparum. They also explore the research challenges that remain in combining non-human primate models with new technologies to potentially provide further insights and epidemiological understanding of the biology of this parasite. Chapter 2, by Peter A. Zimmerman and col- leagues, reviews fascinating new complexities to what is canonically taught about red blood cell polymorphism (predominantly of the Duffy gene) and susceptibility to P. vivax infection at the individual and population levels. Chapter 3 led by Ivo Mueller reviews the natural acquisition of immunity to P. vivax. Epidemiological observations are synthesised and used to support the premise that a multi-stage P. vivax vaccine may be feasible. Chapter 4 by Rosalind E. Howes reviews the geography of G6PD deficiency. The global distribution of its prevalence and genetic variants are discussed along with the implications that this has for the potential risk of haemolysis triggered by primaquine therapy in different parts of the world. Chapter 5, written by Jane M. Carlton and colleagues, considers the genomics, population genetics xi xii Preface and evolutionary history of P. vivax. New insights from detailed genomic investigations of P. vivax across India are synthesised, as well as, research avenues opening as a result of next generation sequencing technologies, discussed. In the final Chapter 6, Georges Snounou and Jean-Louis Péri- gnon conclude these volumes by reviewing the epidemiological insights gained from a thorough analysis of the malaria therapy for neurosyphilis literature. They outline further some of the insights that might be gained in relation to the current challenges of P. vivax epidemiology, immunology and pathology by a deeper engagement with this literature. It is perhaps worth noting that the enormous literature summarized in these two volumes evidences a rich history that we are unwise to forget. Moreover, that the authorship have perhaps helped turn the corner on the research hiatus of P. vivax. Conversely, and perhaps predictably, it also reveals there is much still to learn and therefore that we must approach with some hubris the immediate challenges of P. vivax control and future challenges of its elimination. Finally we take this opportunity to thank all the authors for their considerable time and energy devoted to putting these chapters together. We hope that these two volumes “lower the bar” for a new cohort of malariologists inspired by future challenges in the epidemiology and control of P. vivax. Simon I. Hay, Ric N. Price and J. Kevin Baird CHAPTER ONE Plasmodium vivax: Modern Strategies to Study a Persistent Parasite’s Life Cycle Mary R. Galinski*,†,1, Esmeralda V. S. Meyer†, John W. Barnwell*,‡ *Department of Medicine, Division of Infectious Diseases, Emory University School of Medicine, Emory University, Atlanta, Georgia, USA †Emory Vaccine Center, Yerkes National Primate Research Center, Atlanta, Georgia, USA ‡Centers for Disease Control and Prevention, Malaria Branch, Division of Parasitic Diseases and Malaria, Atlanta, Georgia, USA 1Corresponding author: E-mail: [email protected] Contents 1. I ntroduction 2 2. T heGeneralLifeCycleofPlasmodium vivaxandOtherPrimateMalaria ParasiteSpecies 3 2.1. T heHypnozoite:AnAlternativeLifeStyleforLiver-stageDevelopment 6 2.2. T heReticulocyteasaHostCell:AnEnvironmentalSafetyProgramforP. vivax 8 2.3. F astandFurious:TheSexualLifeStrategiesofP. vivax 9 3. I n VitroandEx VivoModelsforExaminingP. vivaxBiology 11 4. N eotropicalNon-HumanPrimateModels(NewWorldMonkeys)forInvestigating theVariedBiologyofvivaxMalaria 14 5. T heRelapsingMalariaParasitesofSouthernAsianMacaqueMonkeysas ModelsforP. vivaxBiology 15 6. F romGenomicstoSystemsBiology:TheBiggerPicturePuzzles 17 7. C onclusions 20 Acknowledgements 20 References 20 Abstract Plasmodium vivaxhasuniqueattributestosupportitssurvivalinvaryingecologies andclimates.Theseincludehypnozoiteformsintheliver,aninvasionpreference forreticulocytes,caveola–vesiclecomplexstructuresintheinfectederythrocyte membraneandrapidlyformingandcirculatinggametocytes.Thesecharacter- isticsmakethisspeciesverydifferentfromP. falciparum.Plasmodium cynomolgi andotherrelatedsimianspecieshaveidenticalbiologyandcanserveasinfor- mativemodelsofP. vivaxinfections.Plasmodium vivaxanditsmodelparasites canbegrowninnon-humanprimates(NHP),andinshort-termex vivocultures. Advances in Parasitology, Volume 81 © 2013 Elsevier Ltd. ISSN 0065-308X, http://dx.doi.org/10.1016/B978-0-12-407826-0.00001-1 All rights reserved. 1 2 MaryR.Galinski et al. ForP. vivax,intheabsenceofin vitroculturesystems,thesemodelsremainhighly relevantsidebysidewithhumanclinicalstudies.Whilepost-genomictechnologies allowforgreaterexplorationofP. vivax-infectedbloodsamplesfromhumans,these comewithrestrictions.TwoadvantagesofNHPmodelsarethatinfectionscanbe experimentallytailoredtoaddresshypotheses,includinggeneticmanipulation. Also,systemsbiologyapproachescancapitaliseoncomputationalbiologycom- binedwithsetexperimentalinfectionperiodsandprotocols,whichmayinclude multiplesamplingtimes,differenttypesofsamples,andthebroaduseof“omics” technologies.Opportunitiesforresearchonvivaxmalariaareincreasingwiththe useofexistingandnewmethodologicalstrategiesincombinationwithmodern technologies. 1. INTRODUCTION Plasmodium vivax has been neglected as a disease of major global i mportance. Recently, expanded efforts have been made to bring more widespread attention to this disease and to overcome perceptions that there are in surmountable barriers to advancing research and basic knowledge on vivax malaria (Carlton et al., 2011; Galinski and Barn- well, 2008; Lacerda et al., 2012; Mueller et al., 2009; Price et al., 2011). In fact, research and methodological strategies are in place to move forward using the most modern technologies available, and advances are being made. Basic vivax malaria research is benefiting from the incor- poration of ex vivo samples from humans, non-human p rimate (NHP) experimentation and in vitro analyses. In addition, an increased focus on the epidemiology of P. vivax, with an increased attention to interactions with other species, and greater consideration of the ecological factors that affect this parasite’s range is apparent (Gething et al., 2012). Various clinical, epidemiological and biological attributes associated with vivax malaria have also gained the attention of mathematical modellers and computational biologists who wish to apply currently available knowl- edge on the host and vector interactions with this parasite to understand transmission and the influence of current control interventions and drug treatments on those dynamics (Aguas et al., 2012; Chamchod and Beier, 2012; Gething et al., 2011; Mueller et al., 2009; Price et al., 2011; White, 2011). However, to improve modelling efforts and control strategies, interventions or drug therapies will benefit from a better understand- ing of the biological attributes that afford P. vivax and its sibling species life strategies that enable it to persist when confronted with control methods implemented by its human host. Plasmodium vivax:ModernStrategiestoStudyaPersistentParasite’sLifeCycle 3 2. T HE GENERAL LIFE CYCLE OF PLASMODIUM VIVAX AND OTHER PRIMATE MALARIA PARASITE SPECIES In general terms, the life cycle of P. vivax is like that of all of the other primate malaria species in that it requires an invertebrate and a verte- brate host for survival and perpetuation; a female mosquito of a susceptible Anopheles species and a primate, whether human or NHP (Fig. 1.1). When the female mosquito bites, or more precisely, probes the dermis with her proboscis looking for a vessel to obtain her blood meal, she releases salivary fluid and along with it a few sporozoites from her salivary glands. In the dermal tissues, the sporozoites are motile and capable of penetrating small blood vessels, and beginning to stimulate a host immune response (Guilbride et al., 2012; Sinnis and Zavala, 2008). In the circulating blood, they are swept into the liver sinusoid vessels where they penetrate through the professional phagocytes known as Küpffer cells into the Space of Disse to begin the exo- erythrocytic or liver-stage cycle of growth (reviewed in Baer et al., 2007b; Frevert et al., 2008; Meis et al., 1983; Pradel and Frevert, 2001). Once there, the sporozoite then penetrates a hepatocyte, rounds up and differentiates into a small trophozoite (∼4 µ in diameter) growing in size over the next few days eventually differentiating into a multinucleated schizont in 5 days. By 6 or 7 days, of primary growth and development, a fully mature schizont 40–60 µ in diameter has differentiated into thousands of individual invasive single nucleated merozoites surrounded by a parasitophorous membrane capsule. As reported for rodent malaria experimental model systems (not yet investigated in primate malarias), the plasma membrane of an infected hepatocyte breaks down, and blebs of the parasitophorous membrane full of merozoites called merosomes break off and flow into the circulation of the liver sinusoid vessels (Prudencio et al., 2006; Thiberge et al., 2007). These merosomes are carried into the faster flowing general blood circulation and break apart releasing the imprisoned merozoites (Baer et al., 2007a), which then attach to and invade red blood cells (RBCs) to start the erythrocytic cycle of infection, also known as the blood-stage cycle. The newly invaded merozoite immediately differentiates into an eryth- rocytic trophozoite and begins remodelling the anucleate RBC to provide a suitable environment for it to grow larger over a period of 48 hours feeding upon the haemoglobin of the parasitised RBC. Thirty-eight or 40 h into this cycle of growth, the nucleus divides in two to create a schizont and over the next 8 or so hours continues to divide by schizogony to form