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Umumararungu T, Nkuranga JB, Habarurema G, Nyandwi JB, Mukazayire MJ, Mukiza J, Muganga R, Hahirwa I, Mpenda M, Katembezi AN, Olawode EO, Kayitare E, Kayumba PC. Recent developments in antimalarial drug discovery. Bioorg Med Chem 2023; 88-89:117339. [PMID: 37236020 DOI: 10.1016/j.bmc.2023.117339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 05/12/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023]
Abstract
Although malaria remains a big burden to many countries that it threatens their socio-economic stability, particularly in the countries where malaria is endemic, there have been great efforts to eradicate this disease with both successes and failures. For example, there has been a great improvement in malaria prevention and treatment methods with a net reduction in infection and mortality rates. However, the disease remains a global threat in terms of the number of people affected because it is one of the infectious diseases that has the highest prevalence rate, especially in Africa where the deadly Plasmodium falciparum is still widely spread. Methods to fight malaria are being diversified, including the use of mosquito nets, the target candidate profiles (TCPs) and target product profiles (TPPs) of medicine for malarial venture (MMV) strategy, the search for newer and potent drugs that could reverse chloroquine resistance, and the use of adjuvants such as rosiglitazone and sevuparin. Although these adjuvants have no antiplasmodial activity, they can help to alleviate the effects which result from plasmodium invasion such as cytoadherence. The list of new antimalarial drugs under development is long, including the out of ordinary new drugs MMV048, CDRI-97/78 and INE963 from South Africa, India and Novartis, respectively.
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Affiliation(s)
- Théoneste Umumararungu
- Department of Pharmacy, School of Medicine and Pharmacy, College of Medicine and Health Sciences, University of Rwanda, Rwanda.
| | - Jean Bosco Nkuranga
- Department of Chemistry, School of Science, College of Science and Technology, University of Rwanda, Rwanda
| | - Gratien Habarurema
- Department of Chemistry, School of Science, College of Science and Technology, University of Rwanda, Rwanda
| | - Jean Baptiste Nyandwi
- Department of Pharmacy, School of Medicine and Pharmacy, College of Medicine and Health Sciences, University of Rwanda, Rwanda
| | - Marie Jeanne Mukazayire
- Department of Pharmacy, School of Medicine and Pharmacy, College of Medicine and Health Sciences, University of Rwanda, Rwanda
| | - Janvier Mukiza
- Department of Mathematical Science and Physical Education, School of Education, College of Education, University of Rwanda, Rwanda; Rwanda Food and Drugs Authority, Nyarutarama Plaza, KG 9 Avenue, Kigali, Rwanda
| | - Raymond Muganga
- Department of Pharmacy, School of Medicine and Pharmacy, College of Medicine and Health Sciences, University of Rwanda, Rwanda; Rwanda Food and Drugs Authority, Nyarutarama Plaza, KG 9 Avenue, Kigali, Rwanda
| | - Innocent Hahirwa
- Department of Pharmacy, School of Medicine and Pharmacy, College of Medicine and Health Sciences, University of Rwanda, Rwanda
| | - Matabishi Mpenda
- Department of Pharmacy, School of Medicine and Pharmacy, College of Medicine and Health Sciences, University of Rwanda, Rwanda
| | - Alain Nyirimigabo Katembezi
- Department of Pharmacy, School of Medicine and Pharmacy, College of Medicine and Health Sciences, University of Rwanda, Rwanda; Rwanda Food and Drugs Authority, Nyarutarama Plaza, KG 9 Avenue, Kigali, Rwanda
| | - Emmanuel Oladayo Olawode
- Department of Pharmaceutical Sciences, College of Pharmacy, Larkin University, 18301 N Miami Ave #1, Miami, FL 33169, USA
| | - Egide Kayitare
- Department of Pharmacy, School of Medicine and Pharmacy, College of Medicine and Health Sciences, University of Rwanda, Rwanda
| | - Pierre Claver Kayumba
- Department of Pharmacy, School of Medicine and Pharmacy, College of Medicine and Health Sciences, University of Rwanda, Rwanda
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Recent approaches in the drug research and development of novel antimalarial drugs with new targets. ACTA PHARMACEUTICA (ZAGREB, CROATIA) 2023; 73:1-27. [PMID: 36692468 DOI: 10.2478/acph-2023-0001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 09/16/2022] [Indexed: 01/25/2023]
Abstract
Malaria is a serious worldwide medical issue that results in substantial annual death and morbidity. The availability of treatment alternatives is limited, and the rise of resistant parasite types has posed a significant challenge to malaria treatment. To prevent a public health disaster, novel antimalarial agents with single-dosage therapies, extensive curative capability, and new mechanisms are urgently needed. There are several approaches to developing antimalarial drugs, ranging from alterations of current drugs to the creation of new compounds with specific targeting abilities. The availability of multiple genomic techniques, as well as recent advancements in parasite biology, provides a varied collection of possible targets for the development of novel treatments. A number of promising pharmacological interference targets have been uncovered in modern times. As a result, our review concentrates on the most current scientific and technical progress in the innovation of new antimalarial medications. The protein kinases, choline transport inhibitors, dihydroorotate dehydrogenase inhibitors, isoprenoid biosynthesis inhibitors, and enzymes involved in the metabolism of lipids and replication of deoxyribonucleic acid, are among the most fascinating antimalarial target proteins presently being investigated. The new cellular targets and drugs which can inhibit malaria and their development techniques are summarised in this study.
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Marfurt J, Wirjanata G, Prayoga P, Chalfein F, Leonardo L, Sebayang BF, Apriyanti D, Sihombing MAEM, Trianty L, Suwanarusk R, Brockman A, Piera KA, Luo I, Rumaseb A, MacHunter B, Auburn S, Anstey NM, Kenangalem E, Noviyanti R, Russell B, Poespoprodjo JR, Price RN. Longitudinal ex vivo and molecular trends of chloroquine and piperaquine activity against Plasmodium falciparum and P. vivax before and after introduction of artemisinin-based combination therapy in Papua, Indonesia. Int J Parasitol Drugs Drug Resist 2021; 17:46-56. [PMID: 34193398 PMCID: PMC8358472 DOI: 10.1016/j.ijpddr.2021.06.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 06/09/2021] [Accepted: 06/11/2021] [Indexed: 01/13/2023]
Abstract
Drug resistant Plasmodium parasites are a major threat to malaria control and elimination. After reports of high levels of multidrug resistant P. falciparum and P. vivax in Indonesia, in 2005, the national first-line treatment policy for uncomplicated malaria was changed in March 2006, to dihydroartemisinin-piperaquine against all species. This study assessed the temporal trends in ex vivo drug susceptibility to chloroquine (CQ) and piperaquine (PIP) for both P. falciparum and P. vivax clinical isolates collected between 2004 and 2018, by using schizont maturation assays, and genotyped a subset of isolates for known and putative molecular markers of CQ and PIP resistance by using Sanger and next generation whole genome sequencing. The median CQ IC50 values varied significantly between years in both Plasmodium species, but there was no significant trend over time. In contrast, there was a significant trend for increasing PIP IC50s in both Plasmodium species from 2010 onwards. Whereas the South American CQ resistant 7G8 pfcrt SVMNT isoform has been fixed since 2005 in the study area, the pfmdr1 86Y allele frequencies decreased and became fixed at the wild-type allele in 2015. In P. vivax isolates, putative markers of CQ resistance (no pvcrt-o AAG (K10) insertion and pvmdr1 Y967F and F1076L) were fixed at the mutant alleles since 2005. None of the putative PIP resistance markers were detected in P. falciparum. The ex vivo drug susceptibility and molecular analysis of CQ and PIP efficacy for P. falciparum and P. vivax after 12 years of intense drug pressure with DHP suggests that whilst the degree of CQ resistance appears to have been sustained, there has been a slight decline in PIP susceptibility, although this does not appear to have reached clinically significant levels. The observed decreasing trend in ex vivo PIP susceptibility highlights the importance of ongoing surveillance.
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Affiliation(s)
- Jutta Marfurt
- Global and Tropical Health Division, Menzies School of Health Research, Charles Darwin University, PO Box 41096, Casuarina, NT, 0811, Darwin, Australia.
| | - Grennady Wirjanata
- Global and Tropical Health Division, Menzies School of Health Research, Charles Darwin University, PO Box 41096, Casuarina, NT, 0811, Darwin, Australia
| | - Pak Prayoga
- Papuan Health and Community Development Foundation (PHCDF), Jl. Caritas No. 1, 99961, Timika, Papua, Indonesia
| | - Ferryanto Chalfein
- Papuan Health and Community Development Foundation (PHCDF), Jl. Caritas No. 1, 99961, Timika, Papua, Indonesia
| | - Leo Leonardo
- Papuan Health and Community Development Foundation (PHCDF), Jl. Caritas No. 1, 99961, Timika, Papua, Indonesia
| | - Boni F Sebayang
- Eijkman Institute for Molecular Biology, Jl. Diponegoro 69, 10430, Jakarta, Indonesia
| | - Dwi Apriyanti
- Eijkman Institute for Molecular Biology, Jl. Diponegoro 69, 10430, Jakarta, Indonesia
| | - Maic A E M Sihombing
- Eijkman Institute for Molecular Biology, Jl. Diponegoro 69, 10430, Jakarta, Indonesia
| | - Leily Trianty
- Eijkman Institute for Molecular Biology, Jl. Diponegoro 69, 10430, Jakarta, Indonesia
| | - Rossarin Suwanarusk
- Global and Tropical Health Division, Menzies School of Health Research, Charles Darwin University, PO Box 41096, Casuarina, NT, 0811, Darwin, Australia
| | - Alan Brockman
- Global and Tropical Health Division, Menzies School of Health Research, Charles Darwin University, PO Box 41096, Casuarina, NT, 0811, Darwin, Australia
| | - Kim A Piera
- Global and Tropical Health Division, Menzies School of Health Research, Charles Darwin University, PO Box 41096, Casuarina, NT, 0811, Darwin, Australia
| | - Irene Luo
- Global and Tropical Health Division, Menzies School of Health Research, Charles Darwin University, PO Box 41096, Casuarina, NT, 0811, Darwin, Australia
| | - Angela Rumaseb
- Global and Tropical Health Division, Menzies School of Health Research, Charles Darwin University, PO Box 41096, Casuarina, NT, 0811, Darwin, Australia
| | - Barbara MacHunter
- Global and Tropical Health Division, Menzies School of Health Research, Charles Darwin University, PO Box 41096, Casuarina, NT, 0811, Darwin, Australia
| | - Sarah Auburn
- Global and Tropical Health Division, Menzies School of Health Research, Charles Darwin University, PO Box 41096, Casuarina, NT, 0811, Darwin, Australia; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, UK; Mahidol-Oxford Tropical Medicine Research Unit, Mahidol University, Bangkok, Thailand
| | - Nicholas M Anstey
- Global and Tropical Health Division, Menzies School of Health Research, Charles Darwin University, PO Box 41096, Casuarina, NT, 0811, Darwin, Australia
| | - Enny Kenangalem
- Papuan Health and Community Development Foundation (PHCDF), Jl. Caritas No. 1, 99961, Timika, Papua, Indonesia; District Health Authority, Timika, Papua, Indonesia
| | - Rintis Noviyanti
- Eijkman Institute for Molecular Biology, Jl. Diponegoro 69, 10430, Jakarta, Indonesia
| | - Bruce Russell
- Global and Tropical Health Division, Menzies School of Health Research, Charles Darwin University, PO Box 41096, Casuarina, NT, 0811, Darwin, Australia
| | - Jeanne R Poespoprodjo
- Papuan Health and Community Development Foundation (PHCDF), Jl. Caritas No. 1, 99961, Timika, Papua, Indonesia; Paediatric Research Office, Faculty of Medicine, Public Health and Nursing, Gadjah Mada University, Yogyakarta, Indonesia
| | - Ric N Price
- Global and Tropical Health Division, Menzies School of Health Research, Charles Darwin University, PO Box 41096, Casuarina, NT, 0811, Darwin, Australia; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, UK; Mahidol-Oxford Tropical Medicine Research Unit, Mahidol University, Bangkok, Thailand
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Fernandes VDS, da Rosa R, Zimmermann LA, Rogério KR, Kümmerle AE, Bernardes LSC, Graebin CS. Antiprotozoal agents: How have they changed over a decade? Arch Pharm (Weinheim) 2021; 355:e2100338. [PMID: 34661935 DOI: 10.1002/ardp.202100338] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 09/29/2021] [Accepted: 09/30/2021] [Indexed: 12/21/2022]
Abstract
Neglected tropical diseases are a diverse group of communicable diseases that are endemic in low- or low-to-middle-income countries located in tropical and subtropical zones. The number and availability of drugs for treating these diseases are low, the administration route is inconvenient in some cases, and most of them have safety, efficacy, or adverse/toxic reaction issues. The need for developing new drugs to deal with these issues is clear, but one of the most drastic consequences of this negligence is the lack of interest in the research and development of new therapeutic options among major pharmaceutical companies. Positive changes have been achieved over the last few years, although the overall situation remains alarming. After more than one decade since the original work reviewing antiprotozoal agents came to light, now it is time to question ourselves: How has the scenario for the treatment of protozoal diseases such as malaria, leishmaniasis, human African trypanosomiasis, and American trypanosomiasis changed? This review covers the last decade in terms of the drugs currently available for the treatment of these diseases as well as the clinical candidates being currently investigated.
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Affiliation(s)
- Vitória de Souza Fernandes
- Department of Pharmaceutical Sciences, Pharmaceutical and Medicinal Chemistry Laboratory, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Rafael da Rosa
- Department of Organic Chemistry, Medicinal Chemistry and Molecular Diversity Laboratory, Federal Rural University of Rio de Janeiro, Seropédica, Rio de Janeiro, Brazil
| | - Lara A Zimmermann
- Department of Organic Chemistry, Medicinal Chemistry and Molecular Diversity Laboratory, Federal Rural University of Rio de Janeiro, Seropédica, Rio de Janeiro, Brazil
| | - Kamilla R Rogério
- Department of Pharmaceutical Sciences, Pharmaceutical and Medicinal Chemistry Laboratory, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Arthur E Kümmerle
- Department of Pharmaceutical Sciences, Pharmaceutical and Medicinal Chemistry Laboratory, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Lilian S C Bernardes
- Department of Organic Chemistry, Medicinal Chemistry and Molecular Diversity Laboratory, Federal Rural University of Rio de Janeiro, Seropédica, Rio de Janeiro, Brazil
| | - Cedric S Graebin
- Department of Pharmaceutical Sciences, Pharmaceutical and Medicinal Chemistry Laboratory, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
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Tse EG, Korsik M, Todd MH. The past, present and future of anti-malarial medicines. Malar J 2019; 18:93. [PMID: 30902052 PMCID: PMC6431062 DOI: 10.1186/s12936-019-2724-z] [Citation(s) in RCA: 211] [Impact Index Per Article: 42.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 03/12/2019] [Indexed: 11/10/2022] Open
Abstract
Great progress has been made in recent years to reduce the high level of suffering caused by malaria worldwide. Notably, the use of insecticide-treated mosquito nets for malaria prevention and the use of artemisinin-based combination therapy (ACT) for malaria treatment have made a significant impact. Nevertheless, the development of resistance to the past and present anti-malarial drugs highlights the need for continued research to stay one step ahead. New drugs are needed, particularly those with new mechanisms of action. Here the range of anti-malarial medicines developed over the years are reviewed, beginning with the discovery of quinine in the early 1800s, through to modern day ACT and the recently-approved tafenoquine. A number of new potential anti-malarial drugs currently in development are outlined, along with a description of the hit to lead campaign from which it originated. Finally, promising novel mechanisms of action for these and future anti-malarial medicines are outlined.
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Affiliation(s)
- Edwin G Tse
- School of Chemistry, The University of Sydney, Sydney, NSW, 2006, Australia.
| | - Marat Korsik
- School of Chemistry, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Matthew H Todd
- School of Chemistry, The University of Sydney, Sydney, NSW, 2006, Australia. .,School of Pharmacy, University College London, London, WC1N 1AX, United Kingdom.
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Chirawurah JD, Ansah F, Nyarko PB, Duodu S, Aniweh Y, Awandare GA. Antimalarial activity of Malaria Box Compounds against Plasmodium falciparum clinical isolates. INTERNATIONAL JOURNAL FOR PARASITOLOGY-DRUGS AND DRUG RESISTANCE 2017; 7:399-406. [PMID: 29128848 PMCID: PMC5683671 DOI: 10.1016/j.ijpddr.2017.10.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 10/06/2017] [Accepted: 10/12/2017] [Indexed: 12/18/2022]
Abstract
Malaria remains a major cause of childhood deaths in resource-limited settings. In the absence of an effective vaccine, drugs and other interventions have played very significant roles in combating the scourge of malaria. The recent reports of resistance to artemisinin necessitate the need for new antimalarial drugs with novel mechanisms of action. Towards the development of new, affordable and easily accessible antimalarial drugs for endemic regions, the Medicines for Malaria Venture (MMV) assembled a total of 400 active antimalarial compounds called the Malaria Box. The potency and the efficacy of the Malaria Box Compounds have been determined mainly using laboratory strains of P. falciparum. This study investigated the potency of twenty compounds from the Malaria Box against four clinical isolates from Ghana, using optimized in vitro growth inhibitory assays. Seven out of the 20 compounds screened had 50% inhibitory concentration (IC50) below 500 nM. The most active among the selected compounds was MMV006087 (average IC50 of 30.79 nM). Variations in the potency of the Malaria Box Compounds were observed between P. falciparum clinical isolates and Dd2 strain. We also investigated the sensitivity of the clinical isolates to chloroquine and artesunate. The N093 clinical isolate was found to be resistant to chloroquine but showed high sensitivity to artesunate. The results underscore the importance of including clinical isolates with different drug-resistant backgrounds, in addition to laboratory strains, in validating potential compounds during antimalarial compound screening programs.
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Affiliation(s)
- Jersley D Chirawurah
- West African Center for Cell Biology of Infectious Pathogens and Department of Biochemistry, Cell and Molecular Biology, University of Ghana, P. O. Box LG 54, Volta Road Legon, Accra, Ghana
| | - Felix Ansah
- West African Center for Cell Biology of Infectious Pathogens and Department of Biochemistry, Cell and Molecular Biology, University of Ghana, P. O. Box LG 54, Volta Road Legon, Accra, Ghana
| | - Prince B Nyarko
- West African Center for Cell Biology of Infectious Pathogens and Department of Biochemistry, Cell and Molecular Biology, University of Ghana, P. O. Box LG 54, Volta Road Legon, Accra, Ghana
| | - Samuel Duodu
- West African Center for Cell Biology of Infectious Pathogens and Department of Biochemistry, Cell and Molecular Biology, University of Ghana, P. O. Box LG 54, Volta Road Legon, Accra, Ghana
| | - Yaw Aniweh
- West African Center for Cell Biology of Infectious Pathogens and Department of Biochemistry, Cell and Molecular Biology, University of Ghana, P. O. Box LG 54, Volta Road Legon, Accra, Ghana.
| | - Gordon A Awandare
- West African Center for Cell Biology of Infectious Pathogens and Department of Biochemistry, Cell and Molecular Biology, University of Ghana, P. O. Box LG 54, Volta Road Legon, Accra, Ghana.
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Sortica VA, Lindenau JD, Cunha MG, O Ohnishi MD, R Ventura AM, Ribeiro-dos-Santos ÂKC, Santos SEB, Guimarães LSP, Hutz MH. SLCO1A2, SLCO1B1 and SLCO2B1 polymorphisms influences chloroquine and primaquine treatment in Plasmodium vivax malaria. Pharmacogenomics 2017; 18:1393-1400. [PMID: 28975866 PMCID: PMC7099631 DOI: 10.2217/pgs-2017-0077] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Accepted: 07/12/2017] [Indexed: 12/13/2022] Open
Abstract
AIM The association of transporters gene polymorphisms with chloroquine/primaquine malaria treatment response was investigated in a Brazilian population. PATIENTS & METHODS Totally, 164 Plasmodium vivax malaria infected patients were included. Generalized estimating equations were performed to determine gene influences on parasitemia and/or gametocytemia clearance over treatment time. RESULTS Significant interaction between SLCO2B1 genotypes and treatment over time for parasitemia clearance rate on day 2 were observed (p FDR = 0.002). SLCO1A2 and SLCO1B1 gene treatment over time interactions were associated with gametocytemia clearance rate (p FDR = 0.018 and p FDR = 0.024). ABCB1, ABCC4 and SLCO1B3 were not associated with treatment response. CONCLUSION The present work presents the first pharmacogenetic report of an association between chloroquine/primaquine responses with OATP transporters.
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Affiliation(s)
- Vinicius A Sortica
- Departamento de Genética, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Juliana D Lindenau
- Departamento de Genética, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Maristela G Cunha
- Laboratório de Microbiologia e Imunologia, Universidade Federal do Para, Belém, PA, Brazil
| | - Maria Deise O Ohnishi
- Programa de Ensaios Clínicos em Malária, Instituto Evandro Chagas, Sistema de Vigilância Sanitária, Ministério da Saúde, Ananindeua, PA, Brazil
| | - Ana Maria R Ventura
- Programa de Ensaios Clínicos em Malária, Instituto Evandro Chagas, Sistema de Vigilância Sanitária, Ministério da Saúde, Ananindeua, PA, Brazil
| | | | - Sidney EB Santos
- Laboratório de Genética Humana e Médica, Universidade Federal do Pará, Belém, PA, Brazil
| | - Luciano SP Guimarães
- Unidade de Bioestatística, Grupo de Pesquisa e Pós Graduação, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Mara H Hutz
- Departamento de Genética, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
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Chaorattanakawee S, Lon C, Chann S, Thay KH, Kong N, You Y, Sundrakes S, Thamnurak C, Chattrakarn S, Praditpol C, Yingyuen K, Wojnarski M, Huy R, Spring MD, Walsh DS, Patel JC, Lin J, Juliano JJ, Lanteri CA, Saunders DL. Measuring ex vivo drug susceptibility in Plasmodium vivax isolates from Cambodia. Malar J 2017; 16:392. [PMID: 28964258 PMCID: PMC5622433 DOI: 10.1186/s12936-017-2034-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Accepted: 09/19/2017] [Indexed: 12/24/2022] Open
Abstract
Background While intensive Plasmodium falciparum multidrug resistance surveillance continues in Cambodia, relatively little is known about Plasmodium vivax drug resistance in Cambodia or elsewhere. To investigate P. vivax anti-malarial susceptibility in Cambodia, 76 fresh P. vivax isolates collected from Oddar Meanchey (northern Cambodia) in 2013–2015 were assessed for ex vivo drug susceptibility using the microscopy-based schizont maturation test (SMT) and a Plasmodium pan-species lactate dehydrogenase (pLDH) ELISA. P. vivax multidrug resistance gene 1 (pvmdr1) mutations, and copy number were analysed in a subset of isolates. Results Ex vivo testing was interpretable in 80% of isolates using the pLDH-ELISA, but only 25% with the SMT. Plasmodium vivax drug susceptibility by pLDH-ELISA was directly compared with 58 P. falciparum isolates collected from the same locations in 2013–4, tested by histidine-rich protein-2 ELISA. Median pLDH-ELISA IC50 of P. vivax isolates was significantly lower for dihydroartemisinin (3.4 vs 6.3 nM), artesunate (3.2 vs 5.7 nM), and chloroquine (22.1 vs 103.8 nM) than P. falciparum but higher for mefloquine (92 vs 66 nM). There were not significant differences for lumefantrine or doxycycline. Both P. vivax and P. falciparum had comparable median piperaquine IC50 (106.5 vs 123.8 nM), but some P. falciparum isolates were able to grow in much higher concentrations above the normal standard range used, attaining up to 100-fold greater IC50s than P. vivax. A high percentage of P. vivax isolates had pvmdr1 Y976F (78%) and F1076L (83%) mutations but none had pvmdr1 amplification. Conclusion The findings of high P. vivax IC50 to mefloquine and piperaquine, but not chloroquine, suggest significant drug pressure from drugs used to treat multidrug resistant P. falciparum in Cambodia. Plasmodium vivax isolates are frequently exposed to mefloquine and piperaquine due to mixed infections and the long elimination half-life of these drugs. Difficulty distinguishing infection due to relapsing hypnozoites versus blood-stage recrudescence complicates clinical detection of P. vivax resistance, while well-validated molecular markers of chloroquine resistance remain elusive. The pLDH assay may be a useful adjunctive tool for monitoring for emerging drug resistance, though more thorough validation is needed. Given high grade clinical chloroquine resistance observed recently in neighbouring countries, low chloroquine IC50 values seen here should not be interpreted as susceptibility in the absence of clinical data. Incorporating pLDH monitoring with therapeutic efficacy studies for individuals with P. vivax will help to further validate this field-expedient method. Electronic supplementary material The online version of this article (doi:10.1186/s12936-017-2034-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Suwanna Chaorattanakawee
- Department of Immunology and Medicine, Armed Forces Research Institute of Medical Science, Bangkok, Thailand. .,Department of Parasitology and Entomology, Faculty of Public Health, Mahidol University, Bangkok, Thailand.
| | - Chanthap Lon
- Department of Immunology and Medicine, Armed Forces Research Institute of Medical Science, Bangkok, Thailand
| | - Soklyda Chann
- Department of Immunology and Medicine, Armed Forces Research Institute of Medical Science, Bangkok, Thailand
| | - Kheang Heng Thay
- National Center for Parasitology, Entomology and Malaria Control, Phnom Penh, Cambodia
| | - Nareth Kong
- National Center for Parasitology, Entomology and Malaria Control, Phnom Penh, Cambodia
| | - Yom You
- National Center for Parasitology, Entomology and Malaria Control, Phnom Penh, Cambodia
| | - Siratchana Sundrakes
- Department of Immunology and Medicine, Armed Forces Research Institute of Medical Science, Bangkok, Thailand
| | - Chatchadaporn Thamnurak
- Department of Immunology and Medicine, Armed Forces Research Institute of Medical Science, Bangkok, Thailand
| | - Sorayut Chattrakarn
- Department of Immunology and Medicine, Armed Forces Research Institute of Medical Science, Bangkok, Thailand
| | - Chantida Praditpol
- Department of Immunology and Medicine, Armed Forces Research Institute of Medical Science, Bangkok, Thailand
| | - Kritsanai Yingyuen
- Department of Immunology and Medicine, Armed Forces Research Institute of Medical Science, Bangkok, Thailand
| | - Mariusz Wojnarski
- Department of Immunology and Medicine, Armed Forces Research Institute of Medical Science, Bangkok, Thailand
| | - Rekol Huy
- National Center for Parasitology, Entomology and Malaria Control, Phnom Penh, Cambodia
| | - Michele D Spring
- Department of Immunology and Medicine, Armed Forces Research Institute of Medical Science, Bangkok, Thailand
| | - Douglas S Walsh
- Department of Immunology and Medicine, Armed Forces Research Institute of Medical Science, Bangkok, Thailand
| | - Jaymin C Patel
- Division of Infectious Diseases, School of Medicine, University of North Carolina, Chapel Hill, NC, USA
| | - Jessica Lin
- Division of Infectious Diseases, School of Medicine, University of North Carolina, Chapel Hill, NC, USA
| | - Jonathan J Juliano
- Division of Infectious Diseases, School of Medicine, University of North Carolina, Chapel Hill, NC, USA
| | - Charlotte A Lanteri
- Department of Immunology and Medicine, Armed Forces Research Institute of Medical Science, Bangkok, Thailand
| | - David L Saunders
- Department of Immunology and Medicine, Armed Forces Research Institute of Medical Science, Bangkok, Thailand.,US Army Medical Materiel Development Activity, Fort Detrick, Frederick, MD, USA
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Plasmodium falciparum and Plasmodium vivax Demonstrate Contrasting Chloroquine Resistance Reversal Phenotypes. Antimicrob Agents Chemother 2017; 61:AAC.00355-17. [PMID: 28533239 PMCID: PMC5527611 DOI: 10.1128/aac.00355-17] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 05/08/2017] [Indexed: 01/12/2023] Open
Abstract
High-grade chloroquine (CQ) resistance has emerged in both Plasmodium falciparum and P. vivax The aim of the present study was to investigate the phenotypic differences of CQ resistance in both of these species and the ability of known CQ resistance reversal agents (CQRRAs) to alter CQ susceptibility. Between April 2015 and April 2016, the potential of verapamil (VP), mibefradil (MF), L703,606 (L7), and primaquine (PQ) to reverse CQ resistance was assessed in 46 P. falciparum and 34 P. vivax clinical isolates in Papua, Indonesia, where CQ resistance is present in both species, using a modified schizont maturation assay. In P. falciparum, CQ 50% inhibitory concentrations (IC50s) were reduced when CQ was combined with VP (1.4-fold), MF (1.2-fold), L7 (4.2-fold), or PQ (1.8-fold). The degree of CQ resistance reversal in P. falciparum was highly correlated with CQ susceptibility for all CQRRAs (R2 = 0.951, 0.852, 0.962, and 0.901 for VP, MF, L7, and PQ, respectively), in line with observations in P. falciparum laboratory strains. In contrast, no reduction in the CQ IC50s was observed with any of the CQRRAs in P. vivax, even in those isolates with high chloroquine IC50s. The differential effect of CQRRAs in P. falciparum and P. vivax suggests significant differences in CQ kinetics and, potentially, the likely mechanism of CQ resistance between these two species.
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Simplified Reversed Chloroquines To Overcome Malaria Resistance to Quinoline-Based Drugs. Antimicrob Agents Chemother 2017; 61:AAC.01913-16. [PMID: 28193646 PMCID: PMC5404532 DOI: 10.1128/aac.01913-16] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 01/22/2017] [Indexed: 02/01/2023] Open
Abstract
Building on our earlier work of attaching a chemosensitizer (reversal agent) to a known drug pharmacophore, we have now expanded the structure-activity relationship study to include simplified versions of the chemosensitizer. The change from two aromatic rings in this head group to a single ring does not appear to detrimentally affect the antimalarial activity of the compounds. Data from in vitro heme binding and β-hematin inhibition assays suggest that the single aromatic RCQ compounds retain activities against Plasmodium falciparum similar to those of CQ, although other mechanisms of action may be relevant to their activities.
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Jin RZ, Li YL, Wang XS. One-Pot Ullmann C-N Coupling Cyclization Toward Domino Synthesis of Fused Hexacyclic Quinolinotriazoloacridinones Catalyzed by CuI/L-Proline. J Heterocycl Chem 2016. [DOI: 10.1002/jhet.2664] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Rong-Zhang Jin
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthesis for Functional Materials; Jiangsu Normal University; Xuzhou Jiangsu 221116 China
| | - Yu-Ling Li
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthesis for Functional Materials; Jiangsu Normal University; Xuzhou Jiangsu 221116 China
| | - Xiang-Shan Wang
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthesis for Functional Materials; Jiangsu Normal University; Xuzhou Jiangsu 221116 China
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Wirjanata G, Handayuni I, Prayoga P, Apriyanti D, Chalfein F, Sebayang BF, Kho S, Noviyanti R, Kenangalem E, Campo B, Poespoprodjo JR, Price RN, Marfurt J. Quantification of Plasmodium ex vivo drug susceptibility by flow cytometry. Malar J 2015; 14:417. [PMID: 26498665 PMCID: PMC4619360 DOI: 10.1186/s12936-015-0940-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Accepted: 10/11/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The emergence and spread of multidrug-resistant Plasmodium falciparum and Plasmodium vivax highlights the need for objective measures of ex vivo drug susceptibility. Flow cytometry (FC) has potential to provide a robust and rapid quantification of ex vivo parasite growth. METHODS Field isolates from Papua, Indonesia, underwent ex vivo drug susceptibility testing against chloroquine, amodiaquine, piperaquine, mefloquine, and artesunate. A single nucleic acid stain (i.e., hydroethidine (HE) for P. falciparum and SYBR Green I (SG) for P. vivax) was used to quantify infected red blood cells by FC-based signal detection. Data derived by FC were compared to standard quantification by light microscopy (LM). A subset of isolates was used to compare single and double staining techniques. RESULTS In total, 57 P. falciparum and 23 P. vivax field isolates were collected for ex vivo drug susceptibility testing. Reliable paired data between LM and FC was obtained for 88 % (295/334) of these assays. The median difference of derived IC50 values varied from -5.4 to 6.1 nM, associated with 0.83-1.23 fold change in IC50 values between LM and FC. In 15 assays (5.1 %), the derived difference of IC50 estimates was beyond the 95 % limits of agreement; in eleven assays (3.7 %), this was attributable to low parasite growth (final schizont count < 40 %), and in four assays (1.4 %) due to low initial parasitaemia at the start of assay (<2000 µl(-1)). In a subset of seven samples, LM, single and double staining FC techniques generated similar IC50 values. CONCLUSIONS A single staining FC-based assay using a portable cytometer provides a simple, fast and versatile platform for field surveillance of ex vivo drug susceptibility in clinical P. falciparum and P. vivax isolates.
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Affiliation(s)
- Grennady Wirjanata
- Global and Tropical Health Division, Menzies School of Health Research, Charles Darwin University, PO Box 41096, Casuarina, 0811, Darwin, Australia. .,Papuan Health and Community Development Foundation (PHCDF), Timika, Papua, Indonesia.
| | - Irene Handayuni
- Global and Tropical Health Division, Menzies School of Health Research, Charles Darwin University, PO Box 41096, Casuarina, 0811, Darwin, Australia.
| | - Pak Prayoga
- Papuan Health and Community Development Foundation (PHCDF), Timika, Papua, Indonesia.
| | - Dwi Apriyanti
- Eijkman Institute for Molecular Biology, Jl. Diponegoro 69, Jakarta, 10430, Indonesia.
| | - Ferryanto Chalfein
- Papuan Health and Community Development Foundation (PHCDF), Timika, Papua, Indonesia.
| | - Boni F Sebayang
- Eijkman Institute for Molecular Biology, Jl. Diponegoro 69, Jakarta, 10430, Indonesia.
| | - Steven Kho
- Global and Tropical Health Division, Menzies School of Health Research, Charles Darwin University, PO Box 41096, Casuarina, 0811, Darwin, Australia.
| | - Rintis Noviyanti
- Eijkman Institute for Molecular Biology, Jl. Diponegoro 69, Jakarta, 10430, Indonesia.
| | - Enny Kenangalem
- Papuan Health and Community Development Foundation (PHCDF), Timika, Papua, Indonesia. .,District Health Authority, Timika, Papua, Indonesia.
| | - Brice Campo
- Medicines for Malaria Venture (MMV), 20 rte de Pré-Bois, PO Box 1826, 1215, Geneva 15, Switzerland.
| | - Jeanne Rini Poespoprodjo
- Papuan Health and Community Development Foundation (PHCDF), Timika, Papua, Indonesia. .,District Health Authority, Timika, Papua, Indonesia. .,Department of Paediatrics, Faculty of Medicine, Gadjah Mada University, Yogyakarta, Indonesia.
| | - Ric N Price
- Global and Tropical Health Division, Menzies School of Health Research, Charles Darwin University, PO Box 41096, Casuarina, 0811, Darwin, Australia. .,Nuffield Department of Clinical Medicine, Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, UK.
| | - Jutta Marfurt
- Global and Tropical Health Division, Menzies School of Health Research, Charles Darwin University, PO Box 41096, Casuarina, 0811, Darwin, Australia.
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