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Burgueño A, Giovanetti M, Fonseca V, Morel N, Lima M, Castro E, Guimarães NR, Iani FCM, Bormida V, Cortinas MN, Ramas V, Coppola L, Bento AI, Franco L, Rico JM, Lourenço J, Junior Alcantara LC, Chiparelli H. Genomic and eco-epidemiological investigations in Uruguay reveal local Chikungunya virus transmission dynamics during its expansion across the Americas in 2023. Emerg Microbes Infect 2024; 13:2332672. [PMID: 38517841 PMCID: PMC11020592 DOI: 10.1080/22221751.2024.2332672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 03/15/2024] [Indexed: 03/24/2024]
Abstract
Uruguay experienced its first Chikungunya virus outbreak in 2023, resulting in a significant burden to its healthcare system. We conducted analysis based on real-time genomic surveillance (30 novel whole genomes) to offer timely insights into recent local transmission dynamics and eco-epidemiological factors behind its emergence and spread in the country.
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Affiliation(s)
- Analía Burgueño
- Laboratorio de Virus Emergentes/reemergentes. Unidad de Virología, Departamento de Laboratorios de Salud Pública Montevideo, Uruguay
| | - Marta Giovanetti
- Department of Sciences and Technologies for Sustainable Development and One Health, Università Campus Bio-Medico di Roma, Rome, Italy
- Instituto René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Minas Gerais, Brazil
- Climate Amplified Diseases And Epidemics (CLIMADE), Brazil
| | - Vagner Fonseca
- Department of Exact and Earth Sciences, University of the State of Bahia, Salvador, Brazil
- Coordenação de Vigilância, Preparação e Resposta à Emergências e Desastres (PHE), Organização Pan-Americana da Saúde / Organização Mundial da Saúde (OPAS/OMS), Brasilia, Brazil
| | - Noelia Morel
- Laboratorio de Virus Emergentes/reemergentes. Unidad de Virología, Departamento de Laboratorios de Salud Pública Montevideo, Uruguay
| | - Mauricio Lima
- Laboratorio Central de Saúde Pública do Estado de Minas Gerais, Fundação Ezequiel Dias, Belo Horizonte, Minas Gerais, Brazil
| | - Emerson Castro
- Laboratorio Central de Saúde Pública do Estado de Minas Gerais, Fundação Ezequiel Dias, Belo Horizonte, Minas Gerais, Brazil
| | - Natália R. Guimarães
- Laboratorio Central de Saúde Pública do Estado de Minas Gerais, Fundação Ezequiel Dias, Belo Horizonte, Minas Gerais, Brazil
| | - Felipe C. M. Iani
- Laboratorio Central de Saúde Pública do Estado de Minas Gerais, Fundação Ezequiel Dias, Belo Horizonte, Minas Gerais, Brazil
| | - Victoria Bormida
- Laboratorio de Genómica Departamento de Laboratorios de Salud Pública, Montevideo, Uruguay
| | - Maria Noel Cortinas
- Laboratorio de Genómica Departamento de Laboratorios de Salud Pública, Montevideo, Uruguay
| | - Viviana Ramas
- Laboratorio de Virus Respiratorios, Unidad de Virología. Departamento de Laboratorios de Salud Pública, Montevideo, Uruguay
| | - Leticia Coppola
- Laboratorio de Virus Respiratorios, Unidad de Virología. Departamento de Laboratorios de Salud Pública, Montevideo, Uruguay
| | - Ana I. Bento
- Pandemic Prevention Initiative, The Rockefeller Foundation, Washington, DC, USA
| | - Leticia Franco
- Infectious Hazards Management, Health Emergencies Department (PHE), Pan American Health Organization / World Health Organization (PAHO/WHO), WashingtonDC, USA
| | - Jairo Mendez Rico
- Infectious Hazards Management, Health Emergencies Department (PHE), Pan American Health Organization / World Health Organization (PAHO/WHO), WashingtonDC, USA
| | - José Lourenço
- Faculty of Medicine, Católica Biomedical Research Center, Universidade Católica Portuguesa, Lisbon, Portugal
- Climate Amplified Diseases and Epidemics (CLIMADE), Portugal
| | - Luiz Carlos Junior Alcantara
- Instituto René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Minas Gerais, Brazil
- Climate Amplified Diseases And Epidemics (CLIMADE), Brazil
| | - Hector Chiparelli
- Departamento de Laboratorios de Salud Pública, Unidad de Virología, Montevideo, Uruguay
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Giménez-Richarte Á, Arbona Castaño C, Ramos-Rincón JM. Arbovirus - a threat to transfusion safety in Spain: a narrative review. Med Clin (Barc) 2024:S0025-7753(24)00166-0. [PMID: 38643027 DOI: 10.1016/j.medcli.2024.01.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 01/15/2024] [Accepted: 01/17/2024] [Indexed: 04/22/2024]
Abstract
Arboviruses represent a threat to transfusion safety for several reasons: the presence of vectors and the notification of autochthonous cases in our region, the recent increase in the number of cases transmitted through blood and/or blood component transfusion, the high prevalence rates of RNA of the main arboviruses in asymptomatic blood donors, and their ability to survive processing and storage in the different blood components. In an epidemic outbreak caused by an arbovirus in our region, transfusion centres can apply different measures: reactive measures, related to donor selection or arbovirus screening, and proactive measures, such as pathogen inactivation methods. The study of the epidemiology of the main arboviruses and understanding the effectiveness of the different measures that we can adopt are essential to ensure that our blood components remain safe.
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Sheridan RM, Doan TA, Lucas C, Forward TS, Uecker-Martin A, Morrison TE, Hesselberth JR, Tamburini BAJ. A specific and portable gene expression program underlies antigen archiving by lymphatic endothelial cells. bioRxiv 2024:2024.04.01.587647. [PMID: 38617225 PMCID: PMC11014631 DOI: 10.1101/2024.04.01.587647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Abstract
Antigens from protein subunit vaccination traffic from the tissue to the draining lymph node, either passively via the lymph or carried by dendritic cells at the local injection site. Lymph node (LN) lymphatic endothelial cells (LEC) actively acquire and archive foreign antigens, and archived antigen can be released during subsequent inflammatory stimulus to improve immune responses. Here, we answer questions about how LECs achieve durable antigen archiving and whether there are transcriptional signatures associated with LECs containing high levels of antigen. We used single cell sequencing in dissociated LN tissue to quantify antigen levels in LEC and dendritic cell populations at multiple timepoints after immunization, and used machine learning to define a unique transcriptional program within archiving LECs that can predict LEC archiving capacity in independent data sets. Finally, we validated this modeling, showing we could predict antigen archiving from a transcriptional dataset of CHIKV infected mice and demonstrated in vivo the accuracy of our prediction. Collectively, our findings establish a unique transcriptional program in LECs that promotes antigen archiving that can be translated to other systems.
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Affiliation(s)
- Ryan M. Sheridan
- Department of Biochemistry and Molecular Genetics, RNA Bioscience Initiative, University of Colorado School of Medicine
| | - Thu A. Doan
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Colorado School of Medicine
- Immunology Graduate Program, University of Colorado School of Medicine
| | - Cormac Lucas
- Department of Immunology and Microbiology, Aurora, CO, USA
| | - Tadg S. Forward
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Colorado School of Medicine
| | - Aspen Uecker-Martin
- Department of Biochemistry and Molecular Genetics, RNA Bioscience Initiative, University of Colorado School of Medicine
| | | | - Jay R. Hesselberth
- Department of Biochemistry and Molecular Genetics, RNA Bioscience Initiative, University of Colorado School of Medicine
| | - Beth A. Jirón Tamburini
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Colorado School of Medicine
- Immunology Graduate Program, University of Colorado School of Medicine
- Department of Immunology and Microbiology, Aurora, CO, USA
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4
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McMahon R, Fuchs U, Schneider M, Hadl S, Hochreiter R, Bitzer A, Kosulin K, Koren M, Mader R, Zoihsl O, Wressnigg N, Dubischar K, Buerger V, Eder-Lingelbach S, Jaramillo JC. A randomized, double-blinded Phase 3 study to demonstrate lot-to-lot consistency and to confirm immunogenicity and safety of the live-attenuated chikungunya virus vaccine candidate VLA1553 in healthy adults†. J Travel Med 2024; 31:taad156. [PMID: 38091981 PMCID: PMC10911060 DOI: 10.1093/jtm/taad156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 12/04/2023] [Accepted: 12/05/2023] [Indexed: 03/05/2024]
Abstract
BACKGROUND The global spread of the chikungunya virus (CHIKV) increases the exposure risk for individuals travelling to or living in endemic areas. This Phase 3 study was designed to demonstrate manufacturing consistency between three lots of the single shot live-attenuated CHIKV vaccine VLA1553, and to confirm the promising immunogenicity and safety data obtained in previous trials. METHODS This randomized, double-blinded, lot-to-lot consistency, Phase 3 study, assessed immunogenicity and safety of VLA1553 in 408 healthy adults (18-45 years) in 12 sites across the USA. The primary endpoint was a comparison of the geometric mean titre (GMT) ratios of CHIKV-specific neutralizing antibodies between three VLA1553 lots at 28 days post-vaccination. Secondary endpoints included immunogenicity and safety over 6 months post-vaccination. RESULTS GMTs were comparable between the lots meeting the acceptance criteria for equivalence. The average GMT (measured by 50% CHIKV micro plaque neutralization test; μPRNT50) peaked with 2643 at 28 days post-vaccination and decreased to 709 at 6 months post-vaccination. An excellent seroresponse rate (defined as μPRNT50 titre ≥ 150 considered protective) was achieved in 97.8% of participants at 28 days post-vaccination and still persisted in 96% at 6 months after vaccination. Upon VLA1553 immunization, 72.5% of participants experienced adverse events (AEs), without significant differences between lots (related solicited systemic AE: 53.9% of participants; related solicited local AE: 19.4%). Overall, AEs were mostly mild or moderate and resolved without sequela, usually within 3 days. With 3.9% of participants experiencing severe AEs, 2.7% were classified as related, whereas none of the six reported serious adverse events was related to the administration of VLA1553. CONCLUSIONS All three lots of VLA1553 recapitulated the safety and immunogenicity profiles of a preceding Phase 3 study, fulfilling pre-defined consistency requirements. These results highlight the manufacturability of VLA1553, a promising vaccine for the prevention of CHIKV disease for those living in or travelling to endemic areas.
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Affiliation(s)
| | | | | | | | | | | | | | - Michael Koren
- Walter Reed Army Institute of Research, Bethesda, MD, USA
| | - Robert Mader
- CRETA GmbH, Campus Vienna Biocenter 3, 1030 Vienna, Austria
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5
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Jaquet M, Bengue M, Lambert K, Carnac G, Missé D, Bisbal C. Human muscle cells sensitivity to chikungunya virus infection relies on their glycolysis activity and differentiation stage. Biochimie 2024; 218:85-95. [PMID: 37716499 DOI: 10.1016/j.biochi.2023.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 06/22/2023] [Accepted: 09/04/2023] [Indexed: 09/18/2023]
Abstract
Changes to our environment have led to the emergence of human pathogens such as chikungunya virus. Chikungunya virus infection is today a major public health concern. It is a debilitating chronic disease impeding patients' mobility, affecting millions of people. Disease development relies on skeletal muscle infection. The importance of skeletal muscle in chikungunya virus infection led to the hypothesis that it could serve as a viral reservoir and could participate to virus persistence. Here we questioned the interconnection between skeletal muscle cells metabolism, their differentiation stage and the infectivity of the chikungunya virus. We infected human skeletal muscle stem cells at different stages of differentiation with chikungunya virus to study the impact of their metabolism on virus production and inversely the impact of virus on cell metabolism. We observed that chikungunya virus infectivity is cell differentiation and metabolism-dependent. Chikungunya virus interferes with the cellular metabolism in quiescent undifferentiated and proliferative muscle cells. Moreover, activation of chikungunya infected quiescent muscle stem cells, induces their proliferation, increases glycolysis and amplifies virus production. Therefore, our results showed that Chikungunya virus infectivity and the antiviral response of skeletal muscle cells relies on their energetic metabolism and their differentiation stage. Then, muscle stem cells could serve as viral reservoir producing virus after their activation.
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Affiliation(s)
- M Jaquet
- PhyMedExp, Univ. Montpellier, INSERM U1046, CNRS UMR 9214, 34295, Montpellier Cedex 5, France; MIVEGEC, Univ. Montpellier, IRD, CNRS, 34394, Montpellier, France
| | - M Bengue
- MIVEGEC, Univ. Montpellier, IRD, CNRS, 34394, Montpellier, France
| | - K Lambert
- PhyMedExp, Univ. Montpellier, INSERM U1046, CNRS UMR 9214, 34295, Montpellier Cedex 5, France
| | - G Carnac
- PhyMedExp, Univ. Montpellier, INSERM U1046, CNRS UMR 9214, 34295, Montpellier Cedex 5, France
| | - D Missé
- MIVEGEC, Univ. Montpellier, IRD, CNRS, 34394, Montpellier, France.
| | - C Bisbal
- PhyMedExp, Univ. Montpellier, INSERM U1046, CNRS UMR 9214, 34295, Montpellier Cedex 5, France.
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Wang M, Wang L, Leng P, Guo J, Zhou H. Drugs targeting structural and nonstructural proteins of the chikungunya virus: A review. Int J Biol Macromol 2024; 262:129949. [PMID: 38311132 DOI: 10.1016/j.ijbiomac.2024.129949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 01/26/2024] [Accepted: 02/01/2024] [Indexed: 02/06/2024]
Abstract
Chikungunya virus (CHIKV) is a single positive-stranded RNA virus of the Togaviridae family and Alphavirus genus, with a typical lipid bilayer envelope structure, and is the causative agent of human chikungunya fever (CHIKF). The U.S. Food and Drug Administration has recently approved the first chikungunya vaccine, Ixchiq; however, vaccination rates are low, and CHIKF is prevalent owing to its periodic outbreaks. Thus, developing effective anti-CHIKV drugs in clinical settings is imperative. Viral proteins encoded by the CHIKV genome play vital roles in all stages of infection, and developing therapeutic agents that target these CHIKV proteins is an effective strategy to improve CHIKF treatment efficacy and reduce mortality rates. Therefore, in the present review article, we aimed to investigate the basic structure, function, and replication cycle of CHIKV and comprehensively outline the current status and future advancements in anti-CHIKV drug development, specifically targeting nonstructural (ns) proteins, including nsP1, nsP2, nsP3, and nsP4 and structural proteins such as capsid (C), E3, E2, 6K, and E1.
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Affiliation(s)
- Mengke Wang
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Lidong Wang
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Ping Leng
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Jinlin Guo
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Hao Zhou
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; Chongqing Key Laboratory of Sichuan-Chongqing Co-construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, Chongqing Traditional Chinese Medicine Hospital, Chongqing 400016, China.
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Shukla S, Kakade M, Cherian S, Alagarasu K, Parashar D. Arctigenin from Arctium lappa L. inhibits chikungunya virus by affecting its entry and replication. Phytomedicine 2024; 128:155491. [PMID: 38489894 DOI: 10.1016/j.phymed.2024.155491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 02/23/2024] [Accepted: 02/26/2024] [Indexed: 03/17/2024]
Abstract
BACKGROUND Dengue and chikungunya, caused by dengue virus (DENV) and chikungunya virus (CHIKV) respectively, are the most common arthropod-borne viral diseases worldwide, for which there are no FDA-approved antivirals or effective vaccines. Arctigenin, a phenylpropanoid lignan from the seeds of Arctium lappa L. is known for its anti-inflammatory, anti-cancer, antibacterial, and immunomodulatory properties. Arctigenin's antimicrobial and immunomodulatory capabilities make it a promising candidate for investigating its potential as an anti-DENV and anti-CHIKV agent. PURPOSE The aim of the study was to explore the anti-DENV and anti-CHIKV effects of arctigenin and identify the possible mechanisms of action. METHODS The anti-DENV or anti-CHIKV effects of arctigenin was assessed using various in vitro and in silico approaches. Vero CCL-81 cells were infected with DENV or CHIKV and treated with arctigenin at different concentrations, temperature, and time points to ascertain the effect of the compound on virus entry or replication. In silico molecular docking was performed to identify the interactions of the compound with viral proteins. RESULTS Arctigenin had no effects on DENV. Various time- and temperature-dependent assays revealed that arctigenin significantly reduced CHIKV RNA copy number and infectious virus particles and affected viral entry. Entry bypass assay revealed that arctigenin inhibited the initial steps of viral replication. In silico docking results revealed the high binding affinity of the compound with the E1 protein and the nsp3 macrodomain of CHIKV. CONCLUSION This study demonstrates the in-vitro anti-CHIKV potential of arctigenin and suggests that the compound might affect CHIKV entry and replication. Further preclinical and clinical studies are needed to identify its safety and efficacy as an anti-CHIKV drug.
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Affiliation(s)
- Shridhar Shukla
- Dengue and Chikungunya Group, ICMR-National Institute of Virology, Pune, India 411001
| | - Mahadeo Kakade
- Dengue and Chikungunya Group, ICMR-National Institute of Virology, Pune, India 411001
| | - Sarah Cherian
- Dengue and Chikungunya Group, ICMR-National Institute of Virology, Pune, India 411001
| | - Kalichamy Alagarasu
- Dengue and Chikungunya Group, ICMR-National Institute of Virology, Pune, India 411001.
| | - Deepti Parashar
- Dengue and Chikungunya Group, ICMR-National Institute of Virology, Pune, India 411001.
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Shahrtash SA, Ghnim ZS, Ghaheri M, Adabi J, Hassanzadeh MA, Yasamineh S, Afkhami H, Kheirkhah AH, Gholizadeh O, Moghadam HZ. Recent Advances in the Role of Different Nanoparticles in the Various Biosensors for the Detection of the Chikungunya Virus. Mol Biotechnol 2024:10.1007/s12033-024-01052-6. [PMID: 38393630 DOI: 10.1007/s12033-024-01052-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 12/29/2023] [Indexed: 02/25/2024]
Abstract
Humans contract the Chikungunya virus (CHIKV), an alphavirus transmitted by mosquitoes that induces acute and chronic musculoskeletal discomfort and fever. Millions of cases of the disease have been attributed to CHIKV in the Indian Ocean region since 2004, and the virus has since spread to Europe, the Middle East, and the Pacific. The exponential proliferation of CHIKV in recent times underscores the critical nature of implementing preventative measures and exploring potential control strategies. The principal laboratory test employed to diagnose infection in serum samples collected over six days after the onset of symptoms is the detection of CHIKV or viral RNA. Although two commercially available real-time reverse transcription-polymerase chain reaction products exist, data on their validity are limited. A diagnostic instrument that is rapid, sensitive, specific, and cost-effective is, therefore an absolute necessity, particularly in developing nations. Biosensors have demonstrated considerable potential in the realm of pathogen detection. The rapid and sensitive detection of viruses has been facilitated by the development of numerous types of biosensors, including affinity-based nano-biosensors, graphene affinity-based biosensors, optical nano-biosensors, surface Plasmon Resonance-based optical nano-biosensors, and electrochemical nano-biosensors. Furthermore, the utilization of nanomaterials for signal extension, including but not limited to gold and silver nanoparticles, quantum dots, and iron oxide NPs, has enhanced the precision and sensitivity of biosensors. The developed innovative diagnostic method is time-efficient, precise, and economical; it can be implemented as a point-of-care device. The technique may be implemented in diagnostic laboratories and hospitals to identify patients infected with CHIKV. Throughout this article, we have examined a multitude of CHIKV nano-biosensors and their respective properties. Following a discussion of representative nanotechnologies for biosensors, numerous NPs-assisted CHIKV nano-biosensors are summarized in this article. As a result, we anticipate that this review will furnish a significant foundation for advancing innovative CHIKV nano-biosensors.
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Affiliation(s)
| | | | - Mohammad Ghaheri
- Student Research Committee, Alborz University of Medical Sciences, Karaj, Iran
| | - Javid Adabi
- Chemical Engineering Department, Amirkabir University of Technology, Tehran, Iran
| | | | - Saman Yasamineh
- Young Researchers and Elite Club, Tabriz Branch, Islamic Azad University, Tabriz, Iran
| | - Hamed Afkhami
- Department of Medical Microbiology, Faculty of Medicine, Shahed University of Medical Science, Tehran, Iran
| | - Amir Hossein Kheirkhah
- Department of Tissue Engineering and Applied Cell Science, School of Medicine, Qom University of Medical Sciences, Qom, Iran
| | - Omid Gholizadeh
- Young Researchers and Elite Club, Tabriz Branch, Islamic Azad University, Tabriz, Iran.
- Azad Researcher, Virology and Biotechnology, Tehran, Iran.
| | - Hesam Zendehdel Moghadam
- Research Center of Tropical and Infectious Diseases, Kerman University of Medical Sciences, Kerman, Iran.
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Sagay AS, Hsieh SC, Dai YC, Chang CA, Ogwuche J, Ige OO, Kahansim ML, Chaplin B, Imade G, Elujoba M, Paul M, Hamel DJ, Furuya H, Khouri R, Boaventura VS, de Moraes L, Kanki PJ, Wang WK. Chikungunya virus antepartum transmission and abnormal infant outcomes in a cohort of pregnant women in Nigeria. Int J Infect Dis 2024; 139:92-100. [PMID: 38056689 PMCID: PMC10843725 DOI: 10.1016/j.ijid.2023.11.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 11/07/2023] [Accepted: 11/28/2023] [Indexed: 12/08/2023] Open
Abstract
OBJECTIVES Chikungunya virus (CHIKV), a reemerging global public health concern, which causes acute febrile illness, rash, and arthralgia and may affect both mothers and infants during pregnancy. Mother-to-child transmission (MTCT) of CHIKV in Africa remains understudied. METHODS Our cohort study screened 1006 pregnant women with a Zika/dengue/CHIKV rapid test at two clinics in Nigeria between 2019 and 2022. Women who tested positive for the rapid test were followed through their pregnancy and their infants were observed for 6 months, with a subset tested by reverse transcription-polymerase chain reaction (RT-PCR) and neutralization, to investigate seropositivity rates and MTCT of CHIKV. RESULTS Of the 1006, 119 tested positive for CHIKV immunoglobulin (Ig)M, of which 36 underwent detailed laboratory tests. While none of the IgM reactive samples were RT-PCR positive, 14 symptomatic pregnant women were confirmed by CHIKV neutralization test. Twelve babies were followed with eight normal and four abnormal outcomes, including stillbirth, cleft lip/palate with microcephaly, preterm delivery, polydactyly with sepsis, and jaundice. CHIKV IgM testing identified three possible antepartum transmissions. CONCLUSION In Nigeria, we found significant CHIKV infection in pregnancy and possible CHIKV antepartum transmission associated with birth abnormalities.
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Affiliation(s)
- Atiene S Sagay
- Jos University Teaching Hospital, University of Jos, Jos, Nigeria
| | - Szu-Chia Hsieh
- Department of Tropical Medicine, Medical Microbiology and Pharmacology, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, USA
| | - Yu-Ching Dai
- Department of Tropical Medicine, Medical Microbiology and Pharmacology, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, USA
| | - Charlotte Ajeong Chang
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, USA
| | | | - Olukemi O Ige
- Jos University Teaching Hospital, University of Jos, Jos, Nigeria
| | | | - Beth Chaplin
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, USA
| | - Godwin Imade
- Jos University Teaching Hospital, University of Jos, Jos, Nigeria
| | | | - Michael Paul
- Jos University Teaching Hospital, University of Jos, Jos, Nigeria
| | - Donald J Hamel
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, USA
| | - Hideki Furuya
- Department of Biomedical Science, Cedars-Sinai Medical Center, Los Angeles, USA
| | - Ricardo Khouri
- Instituto Gonçalo Moniz -Oswaldo Cruz Foundation (FIOCRUZ), Bahia, Brazil
| | | | - Laíse de Moraes
- Instituto Gonçalo Moniz -Oswaldo Cruz Foundation (FIOCRUZ), Bahia, Brazil
| | - Phyllis J Kanki
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, USA.
| | - Wei-Kung Wang
- Department of Tropical Medicine, Medical Microbiology and Pharmacology, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, USA
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de Souza WM, Ribeiro GS, de Lima ST, de Jesus R, Moreira FR, Whittaker C, Sallum MAM, Carrington CV, Sabino EC, Kitron U, Faria NR, Weaver SC. Chikungunya: a decade of burden in the Americas. Lancet Reg Health Am 2024; 30:100673. [PMID: 38283942 PMCID: PMC10820659 DOI: 10.1016/j.lana.2023.100673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 10/24/2023] [Accepted: 12/29/2023] [Indexed: 01/30/2024]
Abstract
In the Americas, one decade following its emergence in 2013, chikungunya virus (CHIKV) continues to spread and cause epidemics across the region. To date, 3.7 million suspected and laboratory-confirmed chikungunya cases have been reported in 50 countries or territories in the Americas. Here, we outline the current status and epidemiological aspects of chikungunya in the Americas and discuss prospects for future research and public health strategies to combat CHIKV in the region.
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Affiliation(s)
- William M. de Souza
- Department of Microbiology, Immunology and Molecular Genetics, University of Kentucky, College of Medicine, Lexington, KY, USA
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, USA
- World Reference Center for Emerging Viruses and Arboviruses, University of Texas Medical Branch, Galveston, TX, USA
- Global Virus Network, Baltimore, MD, USA
| | - Guilherme S. Ribeiro
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Bahia, Brazil
- Faculdade de Medicina da Bahia, Universidade Federal da Bahia, Salvador, Bahia, Brazil
| | - Shirlene T.S. de Lima
- Laboratório Central de Saúde Pública do Ceará, Fortaleza, Ceará, Brazil
- Department of Genetics, Microbiology and Immunology, Institute of Biology, University of Campinas, Campinas, São Paulo, Brazil
| | - Ronaldo de Jesus
- Coordenação Geral dos Laboratórios de Saúde Pública, Secretaria de Vigilância em Saúde, Ministério da Saúde, Brasília, Brazil
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Filipe R.R. Moreira
- Departamento de Genética, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Charles Whittaker
- MRC Centre for Global Infectious Disease Analysis, Department of Infectious Disease Epidemiology, School of Public Health, Imperial College London, London, UK
| | - Maria Anice M. Sallum
- Departamento de Epidemiologia, Faculdade de Saúde Pública, Universidade de São Paulo, Brazil
| | - Christine V.F. Carrington
- Department of Preclinical Sciences, Faculty of Medical Sciences, The University of the West Indies, St. Augustine, Republic of Trinidad and Tobago
| | - Ester C. Sabino
- Instituto de Medicina Tropical, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
- Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Uriel Kitron
- Department of Environmental Sciences, Emory University, Atlanta, GA, USA
| | - Nuno R. Faria
- MRC Centre for Global Infectious Disease Analysis, Department of Infectious Disease Epidemiology, School of Public Health, Imperial College London, London, UK
- Instituto de Medicina Tropical, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
- Department of Biology, University of Oxford, Oxford, UK
| | - Scott C. Weaver
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, USA
- World Reference Center for Emerging Viruses and Arboviruses, University of Texas Medical Branch, Galveston, TX, USA
- Global Virus Network, Baltimore, MD, USA
- Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, USA
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Chen H, Phuektes P, Yeo LS, Wong YH, Lee RCH, Yi B, Hou X, Liu S, Cai Y, Chu JJH. Attenuation of neurovirulence of chikungunya virus by a single amino acid mutation in viral E2 envelope protein. J Biomed Sci 2024; 31:8. [PMID: 38229040 DOI: 10.1186/s12929-024-00995-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 01/05/2024] [Indexed: 01/18/2024] Open
Abstract
BACKGROUND Chikungunya virus (CHIKV) has reemerged as a major public health concern, causing chikungunya fever with increasing cases and neurological complications. METHODS In the present study, we investigated a low-passage human isolate of the East/ Central/South African (ECSA) lineage of CHIKV strain LK(EH)CH6708, which exhibited a mix of small and large viral plaques. The small and large plaque variants were isolated and designated as CHIKV-SP and CHIKV-BP, respectively. CHIKV-SP and CHIKV-BP were characterized in vitro and in vivo to compare their virus production and virulence. Additionally, whole viral genome analysis and reverse genetics were employed to identify genomic virulence factors. RESULTS CHIKV-SP demonstrated lower virus production in mammalian cells and attenuated virulence in a murine model. On the other hand, CHIKV-BP induced higher pro-inflammatory cytokine levels, compromised the integrity of the blood-brain barrier, and led to astrocyte infection in mouse brains. Furthermore, the CHIKV-SP variant had limited transmission potential in Aedes albopictus mosquitoes, likely due to restricted dissemination. Whole viral genome analysis revealed multiple genetic mutations in the CHIKV-SP variant, including a Glycine (G) to Arginine (R) mutation at position 55 in the viral E2 glycoprotein. Reverse genetics experiments confirmed that the E2-G55R mutation alone was sufficient to reduce virus production in vitro and virulence in mice. CONCLUSIONS These findings highlight the attenuating effects of the E2-G55R mutation on CHIKV pathogenicity and neurovirulence and emphasize the importance of monitoring this mutation in natural infections.
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Affiliation(s)
- Huixin Chen
- Laboratory of Molecular RNA Virology and Antiviral Strategies, Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Infectious Diseases Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Patchara Phuektes
- Division of Pathobiology, Faculty of Veterinary Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Li Sze Yeo
- School of Applied Science, Republic Polytechnic, Singapore, Singapore
| | - Yi Hao Wong
- Laboratory of Molecular RNA Virology and Antiviral Strategies, Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Infectious Diseases Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Regina Ching Hua Lee
- Laboratory of Molecular RNA Virology and Antiviral Strategies, Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Infectious Diseases Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Bowen Yi
- Laboratory of Molecular RNA Virology and Antiviral Strategies, Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Infectious Diseases Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Xinjun Hou
- Temasek Life Sciences Laboratory, National University of Singapore, Singapore, Singapore
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Sen Liu
- Temasek Life Sciences Laboratory, National University of Singapore, Singapore, Singapore
| | - Yu Cai
- Temasek Life Sciences Laboratory, National University of Singapore, Singapore, Singapore
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Justin Jang Hann Chu
- Laboratory of Molecular RNA Virology and Antiviral Strategies, Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
- Infectious Diseases Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
- Collaborative and Translation Unit for HFMD, Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore.
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12
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do Nascimento SN, Mazzei JL, Tostes JBDF, Nakamura MJ, Valente LMM, de Lima RC, Nunes PCG, de Azeredo EL, Berrueta LA, Gallo B, Siani AC. Miconia albicans (Melastomataceae) to treat Chikungunya viral infection: An effectual symptom-driven ethnomedicinal repurposing of an anti-inflammatory species? J Ethnopharmacol 2024; 318:116875. [PMID: 37451491 DOI: 10.1016/j.jep.2023.116875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 06/21/2023] [Accepted: 07/01/2023] [Indexed: 07/18/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Miconia albicans (MA) is consumed all over the Brazilian territory as a remedy to treat rheumatoid arthritis and has been increasingly used to alleviate the deleterious symptoms caused by Chikungunya virus (CHIKV). AIM OF THE STUDY To investigate the effect of MA leaf and stem hydroethanolic extracts (LE and SE, respectively), their fractions enriched in triterpene acids or polyphenols as well isolated constituents, on CHIKV hosted in Vero cells. MATERIALS AND METHODS Polyphenol profiles of LE and SE were dereplicated by HPLC-DAD-ESI-MS/MS, aided by standards. Polyphenol-rich (LEx and SEx) and triterpenic acid-rich (LOH and SOH) fractions were obtained in Amberlite XAD-4 and alkalinized 95% ethanol (EtOH) extraction, respectively. TPC and TFC were assessed by colorimetric methods. Three representative flavonoids and two triterpenic acids were quantified by HPLC. CHIKV load suppression was evaluated in Vero cells by real-time qRT‒PCR at noncytotoxic concentrations. RESULTS Fifteen flavonoids were characterized in LE and SE. LEx presented isoquercitrin, quercitrin, rutin (0.49-1.51%) and quercetin. The TPC was 48 and 62 mg QE/g extract, and the TFC was 11.93 and 0.76 mg QE/g extract for LEx and SEx, respectively. LOH presented ursolic (15.3%) and oleanolic (8.0%) acids. A reduction (91-97%) in the CHIKV load was produced by the triterpene fraction, quercitrin and quercetin; the latter maintained the activity down to one twentieth of the tolerated concentration. CONCLUSION M. albicans contains flavonoids and triterpenic acids that are effective against CHIKV, which might justify its use to alleviate sequelae of CHIKV infection. However, further investigations on the species and its active constituents are needed.
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Affiliation(s)
- Sarah Neves do Nascimento
- Laboratory of Technology for Biodiversity in Health, Institute of Drug Technology, Oswaldo Cruz Foundation, Rua Sizenando Nabuco 100, Manguinhos, 21041-250, Rio de Janeiro, RJ, Brazil.
| | - José Luiz Mazzei
- Laboratory of Technology for Biodiversity in Health, Institute of Drug Technology, Oswaldo Cruz Foundation, Rua Sizenando Nabuco 100, Manguinhos, 21041-250, Rio de Janeiro, RJ, Brazil.
| | - João Batista de Freitas Tostes
- Laboratory of Technology for Biodiversity in Health, Institute of Drug Technology, Oswaldo Cruz Foundation, Rua Sizenando Nabuco 100, Manguinhos, 21041-250, Rio de Janeiro, RJ, Brazil.
| | - Marcos Jun Nakamura
- Laboratory of Technology for Biodiversity in Health, Institute of Drug Technology, Oswaldo Cruz Foundation, Rua Sizenando Nabuco 100, Manguinhos, 21041-250, Rio de Janeiro, RJ, Brazil.
| | - Ligia Maria Marino Valente
- Instituto de Química, Universidade Federal do Rio de Janeiro, Av. Athos da Silveira Ramos, 149, C. T., Bl. A, 21941-909, Rio de Janeiro, RJ, Brazil.
| | - Raquel Curtinhas de Lima
- Laboratory of Virus-Host Interactions, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Av. Brasil 4365, 21045-900, Manguinhos, Rio de Janeiro, RJ, Brazil.
| | - Priscila Conrado Guerra Nunes
- Laboratory of Virus-Host Interactions, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Av. Brasil 4365, 21045-900, Manguinhos, Rio de Janeiro, RJ, Brazil.
| | - Elzinandes Leal de Azeredo
- Laboratory of Virus-Host Interactions, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Av. Brasil 4365, 21045-900, Manguinhos, Rio de Janeiro, RJ, Brazil.
| | - Luis Angel Berrueta
- Departamento de Química Analítica, Facultad de Ciencia y Tecnología, Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU), PO Box 644, 48080, Bilbao, Spain.
| | - Blanca Gallo
- Departamento de Química Analítica, Facultad de Ciencia y Tecnología, Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU), PO Box 644, 48080, Bilbao, Spain.
| | - Antonio Carlos Siani
- Laboratory of Technology for Biodiversity in Health, Institute of Drug Technology, Oswaldo Cruz Foundation, Rua Sizenando Nabuco 100, Manguinhos, 21041-250, Rio de Janeiro, RJ, Brazil.
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Venâncio LGA, Muniz LF, Hora LCDD, Silva JDD, Cavalcanti GST, Leal MDC, Caldas Neto SDS. Does a patient with acquired arbovirus infection have a hearing impairment? A scoping review of hearing changes in an adult with Dengue, Chikungunya, and Zika. Braz J Otorhinolaryngol 2024; 90:101342. [PMID: 37879254 PMCID: PMC10598399 DOI: 10.1016/j.bjorl.2023.101342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 06/30/2023] [Accepted: 09/30/2023] [Indexed: 10/27/2023] Open
Abstract
OBJECTIVES To identify and understand the evidence regarding hearing changes related to acquired Dengue, Chikungunya, and Zika virus infection in adult individuals. METHODS A scoping review was performed according to the recommendations of The Joanna Briggs Institute and guidelines of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews in the Embase, PubMed/Medline, ScienceDirect, Scopus, and Web of Science databases without restriction on language and year of publication. Case studies, observational studies, and clinical trials reporting hearing loss in adult subjects (>18-60 years of age) of both sexes with DENV, CHIKV, or ZIKV diagnosed by positive molecular/serological examination by RT-PCR or IgM/IgG by ELISA method were included. RESULTS Thirteen studies met the inclusion criteria and were selected for review. The occurrence of auditory symptoms caused by arboviroses and the presence of permanent or transient sensorineural hearing loss was variable in adults. CONCLUSIONS Dengue, Chikungunya, and Zika infections in adults are associated with a variety of auditory symptoms. The frequency of permanent or transient sensorineural hearing loss is low but not negligible.
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14
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Xavier J, Fonseca V, Adelino T, Iani FCM, Pereira GC, Duarte MM, Lima M, Castro E, Oliveira C, Fritsch H, Guimarães N, Lamounier LO, Barreto FK, Braga de Oliveira CMM, Maymone Gonçalves CC, Malta Lima D, de Oliveira EC, de Castro Lichs GG, Gomes I, Mazaro J, Rodrigues JTN, Abrantes J, Colares JKB, Luz KG, Barbosa da Silva L, Demarchi L, Câmara MCB, Umaki Zardin MCS, Sabatini Mello Pinheiro R, Barbosa Souza R, Haddad SK, Figueiredo da Silva S, Slavov SN, Rocha T, Morel N, Chiparelli H, Burgueño A, Bórmida V, Cortinas MN, Martín RS, Pereira AC, dos Santos MF, André Júnior W, Mendez Rico J, Franco L, Rosewell A, do Carmo Said RF, de Albuquerque CFC, Noia Maciel EL, Santini de Oliveira M, Venâncio da Cunha R, Vinhal Frutuoso LC, de Filippis AMB, Giovanetti M, Carlos Junior Alcantara L. A Multiplex Nanopore Sequencing Approach for the Detection of Multiple Arboviral Species. Viruses 2023; 16:23. [PMID: 38257724 PMCID: PMC10821003 DOI: 10.3390/v16010023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 12/08/2023] [Accepted: 12/10/2023] [Indexed: 01/24/2024] Open
Abstract
The emergence and continued geographic expansion of arboviruses and the growing number of infected people have highlighted the need to develop and improve multiplex methods for rapid and specific detection of pathogens. Sequencing technologies are promising tools that can help in the laboratory diagnosis of conditions that share common symptoms, such as pathologies caused by emerging arboviruses. In this study, we integrated nanopore sequencing and the advantages of reverse transcription polymerase chain reaction (RT-PCR) to develop a multiplex RT-PCR protocol for the detection of Chikungunya virus (CHIKV) and several orthoflaviviruses (such as dengue (Orthoflavivirus dengue), Zika (Orthoflavivirus zikaense), yellow fever (Orthoflavivirus flavi), and West Nile (Orthoflavivirus nilense) viruses) in a single reaction, which provides data for sequence-based differentiation of arbovirus lineages.
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Affiliation(s)
- Joilson Xavier
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, Brazil
| | - Vagner Fonseca
- Organização Pan-Americana da Saúde, Organização Mundial da Saúde, Brasília 70800-400, Brazil
| | - Talita Adelino
- Laboratorio Central de Saúde Pública do Estado de Minas Gerais, Fundação Ezequiel Dias, Belo Horizonte 30510-010, Brazil (F.C.M.I.)
| | - Felipe C. M. Iani
- Laboratorio Central de Saúde Pública do Estado de Minas Gerais, Fundação Ezequiel Dias, Belo Horizonte 30510-010, Brazil (F.C.M.I.)
| | - Glauco C. Pereira
- Laboratorio Central de Saúde Pública do Estado de Minas Gerais, Fundação Ezequiel Dias, Belo Horizonte 30510-010, Brazil (F.C.M.I.)
| | - Myrian M. Duarte
- Laboratorio Central de Saúde Pública do Estado de Minas Gerais, Fundação Ezequiel Dias, Belo Horizonte 30510-010, Brazil (F.C.M.I.)
| | - Mauricio Lima
- Instituto Rene Rachou, Fundação Oswaldo Cruz, Belo Horizonte 30190-002, Brazil
| | - Emerson Castro
- Instituto Rene Rachou, Fundação Oswaldo Cruz, Belo Horizonte 30190-002, Brazil
| | - Carla Oliveira
- lnstituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro 21040-900, Brazil
| | - Hegger Fritsch
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, Brazil
| | - Natalia Guimarães
- Laboratorio Central de Saúde Pública do Estado de Minas Gerais, Fundação Ezequiel Dias, Belo Horizonte 30510-010, Brazil (F.C.M.I.)
| | - Ludmila O. Lamounier
- Laboratorio Central de Saúde Pública do Estado de Minas Gerais, Fundação Ezequiel Dias, Belo Horizonte 30510-010, Brazil (F.C.M.I.)
| | - Fernanda Khouri Barreto
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista 45029-094, Brazil
| | | | | | - Danielle Malta Lima
- Faculty of the Graduate Program in Biotechnology (Renorbio), Universidade de Fortaleza, Fortaleza 60811-905, Brazil
| | | | | | - Iago Gomes
- Laboratório Central de Saúde Pública do Rio Grande do Norte, Natal 59037-170, Brazil
| | - Janaina Mazaro
- Secretaria Estadual de Saúde do estado do Acre, Rio Branco 69900-064, Brazil
| | | | - Jayra Abrantes
- Laboratório Central de Saúde Pública do Rio Grande do Norte, Natal 59037-170, Brazil
| | - Jeová K. B. Colares
- Faculty of the Graduate Program in Biotechnology (Renorbio), Universidade de Fortaleza, Fortaleza 60811-905, Brazil
| | - Kleber G. Luz
- Department of Infectious Diseases, Universidade Federal do Rio Grande do Norte, Natal 59078-900, Brazil
| | | | - Luiz Demarchi
- Laboratorio Central de Saúde Pública do Mato Grosso do Sul, Campo Grande 79074-460, Brazil
| | - Magaly C. B. Câmara
- Laboratório Central de Saúde Pública do Rio Grande do Norte, Natal 59037-170, Brazil
| | | | | | | | - Simone K. Haddad
- Fundação Hemocentro de Ribeirão Preto, Ribeirão Preto 14051-140, Brazil
| | | | | | - Themis Rocha
- Laboratório Central de Saúde Pública do Rio Grande do Norte, Natal 59037-170, Brazil
| | - Noelia Morel
- Departamento de Laboratorios de Salud Pública, Ministerio de Salud Pública, Montevideo 11200, Uruguay
| | - Hector Chiparelli
- Departamento de Laboratorios de Salud Pública, Ministerio de Salud Pública, Montevideo 11200, Uruguay
| | - Analía Burgueño
- Departamento de Laboratorios de Salud Pública, Ministerio de Salud Pública, Montevideo 11200, Uruguay
| | - Victoria Bórmida
- Departamento de Laboratorios de Salud Pública, Ministerio de Salud Pública, Montevideo 11200, Uruguay
| | - María N. Cortinas
- Departamento de Laboratorios de Salud Pública, Ministerio de Salud Pública, Montevideo 11200, Uruguay
| | - Rosario S. Martín
- Departamento de Laboratorios de Salud Pública, Ministerio de Salud Pública, Montevideo 11200, Uruguay
| | | | | | | | | | - Leticia Franco
- Pan American Health Organization, Washington, DC 20037, USA
| | - Alexander Rosewell
- Organização Pan-Americana da Saúde, Organização Mundial da Saúde, Brasília 70800-400, Brazil
| | | | | | - Ethel L. Noia Maciel
- Secretaria de Vigilância em Saúde e Ambiente, Ministério da Saúde, Brasília 70058-900, Brazil
| | | | | | | | | | - Marta Giovanetti
- Instituto Rene Rachou, Fundação Oswaldo Cruz, Belo Horizonte 30190-002, Brazil
- Sciences and Technologies for Sustainable Development and One Health, Universita Campus Bio-Medico di Roma, 00128 Roma, Italy
- Climate Amplified Diseases and Epidemics (CLIMADE), Fundação Oswaldo Cruz, Belo Horizonte 30190-002, Brazil
| | - Luiz Carlos Junior Alcantara
- Instituto Rene Rachou, Fundação Oswaldo Cruz, Belo Horizonte 30190-002, Brazil
- Climate Amplified Diseases and Epidemics (CLIMADE), Fundação Oswaldo Cruz, Belo Horizonte 30190-002, Brazil
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Côrtes N, Lira A, Prates-Syed W, Dinis Silva J, Vuitika L, Cabral-Miranda W, Durães-Carvalho R, Balan A, Cabral-Marques O, Cabral-Miranda G. Integrated control strategies for dengue, Zika, and Chikungunya virus infections. Front Immunol 2023; 14:1281667. [PMID: 38196945 PMCID: PMC10775689 DOI: 10.3389/fimmu.2023.1281667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 11/24/2023] [Indexed: 01/11/2024] Open
Abstract
Arboviruses are a major threat to public health in tropical regions, encompassing over 534 distinct species, with 134 capable of causing diseases in humans. These viruses are transmitted through arthropod vectors that cause symptoms such as fever, headache, joint pains, and rash, in addition to more serious cases that can lead to death. Among the arboviruses, dengue virus stands out as the most prevalent, annually affecting approximately 16.2 million individuals solely in the Americas. Furthermore, the re-emergence of the Zika virus and the recurrent outbreaks of chikungunya in Africa, Asia, Europe, and the Americas, with one million cases reported annually, underscore the urgency of addressing this public health challenge. In this manuscript we discuss the epidemiology, viral structure, pathogenicity and integrated control strategies to combat arboviruses, and the most used tools, such as vaccines, monoclonal antibodies, treatment, etc., in addition to presenting future perspectives for the control of arboviruses. Currently, specific medications for treating arbovirus infections are lacking, and symptom management remains the primary approach. However, promising advancements have been made in certain treatments, such as Chloroquine, Niclosamide, and Isatin derivatives, which have demonstrated notable antiviral properties against these arboviruses in vitro and in vivo experiments. Additionally, various strategies within vector control approaches have shown significant promise in reducing arbovirus transmission rates. These encompass public education initiatives, targeted insecticide applications, and innovative approaches like manipulating mosquito bacterial symbionts, such as Wolbachia. In conclusion, combatting the global threat of arbovirus diseases needs a comprehensive approach integrating antiviral research, vaccination, and vector control. The continued efforts of research communities, alongside collaborative partnerships with public health authorities, are imperative to effectively address and mitigate the impact of these arboviral infections on public health worldwide.
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Affiliation(s)
- Nelson Côrtes
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
- The Interunits Graduate Program in Biotechnology of the University of São Paulo, the Butantan Institute and the Technological Research Institute of the State of São Paulo, São Paulo, Brazil
| | - Aline Lira
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
- The Interunits Graduate Program in Biotechnology of the University of São Paulo, the Butantan Institute and the Technological Research Institute of the State of São Paulo, São Paulo, Brazil
| | - Wasim Prates-Syed
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
- The Interunits Graduate Program in Biotechnology of the University of São Paulo, the Butantan Institute and the Technological Research Institute of the State of São Paulo, São Paulo, Brazil
| | - Jaqueline Dinis Silva
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
- The Graduate Program in Pathophysiology and Toxicology, Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Larissa Vuitika
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | | | - Ricardo Durães-Carvalho
- São Paulo School of Medicine, Department of Microbiology, Immunology and Parasitology, Federal University of São Paulo, São Paulo, Brazil
| | - Andrea Balan
- The Interunits Graduate Program in Biotechnology of the University of São Paulo, the Butantan Institute and the Technological Research Institute of the State of São Paulo, São Paulo, Brazil
- Applied Structural Biology Laboratory, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Otavio Cabral-Marques
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
- The Graduate Program in Pathophysiology and Toxicology, Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
- Department of Medicine, Division of Molecular Medicine, University of São Paulo School of Medicine, São Paulo, Brazil
| | - Gustavo Cabral-Miranda
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
- The Interunits Graduate Program in Biotechnology of the University of São Paulo, the Butantan Institute and the Technological Research Institute of the State of São Paulo, São Paulo, Brazil
- The Graduate Program in Pathophysiology and Toxicology, Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
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Chatterjee S, Subudhi BB, Chattopadhyay S. A hidden gem Catenin-α-1 is essential for Chikungunya virus infection. Microbiol Spectr 2023; 11:e0248523. [PMID: 37962368 PMCID: PMC10715081 DOI: 10.1128/spectrum.02485-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2023] Open
Affiliation(s)
- Sanchari Chatterjee
- Infectious Disease Biology, Institute of Life Sciences, Bhubaneswar, Odisha, India
- Regional Centre for Biotechnology, Faridabad, Haryana, India
| | - Bharat Bhusan Subudhi
- School of Pharmaceutical Sciences, Siksha O Anusandhan Deemed to be University, Bhubaneswar, Odisha, India
| | - Soma Chattopadhyay
- Infectious Disease Biology, Institute of Life Sciences, Bhubaneswar, Odisha, India
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Darole RS, Bagad PK, Gonnade RG, Alagarasu K, Punekar M, Shukla S, Parashar D, Senthilkumar B. Synthesis of novel rhodamine type Anthrone Spiro-lactam (ASL) analogues and evaluation of antiviral activity against dengue and chikungunya viruses. Eur J Med Chem 2023; 261:115849. [PMID: 37804768 DOI: 10.1016/j.ejmech.2023.115849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 09/20/2023] [Accepted: 09/29/2023] [Indexed: 10/09/2023]
Abstract
A series of Rhodamine type Anthrone-Spirolactam (ASL) derivatives Benzylimin-Anthrone-Spirolactam (ASL-1 to ASL-10) and Benzamide-Anthrone-Spirolactam (ASL-11 and ASL-12) were synthesized via a simple condensation reaction between Anthrone Spiro-lactamine (2) and various aromatic aldehyde and acyl chlorides respectively. Since rhodamine-based compounds were reported to have antiviral activity, the ASL derivatives were examined for in vitro antiviral activity against dengue and chikungunya viruses. Among all the analogues, ASL-3, ASL-6, ASL-7, ASL-8, ASL-9 and ASL-10 were the most potent against dengue virus (DENV) and exerted around one log reduction in virus titre under post-treatment conditions. At the same time ASL-3 was effective under co-treatment conditions. Two analogues ASL-6 and ASL-12 exerted anti-chikungunya virus (CHIKV) activity under post-treatment conditions. In silico docking studies revealed that the ASL derivatives interacted with the proteins of DENV and CHIKV. Together, the results suggest the anti-DENV and CHIKV activity of ASL derivatives which may be exploited further for therapeutic purposes.
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Affiliation(s)
- Ratanamala S Darole
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, 411008, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Pooja K Bagad
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, 411008, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Rajesh G Gonnade
- Center for Materials Characterization, Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, 411008, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | | | | | | | | | - Beeran Senthilkumar
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, 411008, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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Bastos Filho PP, Francisco MVLDO, Santos CS, de Almeida BL, Souza MSDJ, Ribeiro DVB, de Araújo IMB, Lima BGDC, Rajan J, de Siqueira IC. High seroprevalence of antibodies against arboviruses in postpartum women in Salvador, Brazil. IJID Reg 2023; 9:55-58. [PMID: 37868343 PMCID: PMC10585381 DOI: 10.1016/j.ijregi.2023.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 09/20/2023] [Accepted: 09/22/2023] [Indexed: 10/24/2023]
Abstract
Objectives Arboviruses represent a major challenge to public health in Brazil. Dengue (DENV) virus has been endemic for decades, and the introduction of Zika (2015) and Chikungunya (2014) viruses (CHIKV) has imposed a significant burden on the country. The present study aimed to investigate the seroprevalence of Zika virus (ZIKV), DENV and CHIKV in women in Salvador, Bahia-Brazil. Methods Cross-sectional study involving postpartum women admitted to a maternity hospital in Salvador, Brazil. Anti-ZIKV, anti-DENV and anti-CHIKV immunoglobulin G was measured by enzyme-linked immunosorbent assay. Results A total of 302 women were enrolled with a median age: 26 years, interquartile range (21-33). Most self-declared as mixed-race or black skin color (92.4%). The seroprevalence was 57% for ZIKV); 91.4% for DENV, and 7.6% for CHIKV. Most participants denied awareness of previous arboviral infection, although 67 (22.3%) reported a previous history of ZIKV infection, 34 (11.1%) DENV infection and 9 (3%) CHIKV infection. Conclusion Our data indicate a high prevalence of past ZIKV and DENV infections in the population studied. Most of the participants remain susceptible to future CHIKV infection, highlighting the need for preventive and educational interventions. Our results suggest the need for continuous epidemiological surveillance of arboviral diseases, particularly among women residing in at-risk regions.
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Affiliation(s)
- Pedro Paulo Bastos Filho
- Instituto de Perinatologia da Bahia, IPERBA-SESAB, Salvador, Brazil
- Escola Bahiana de Medicina e Saúde Pública, Salvador, Brazil
| | | | | | | | | | | | | | | | - Jayant Rajan
- Division of Experimental Medicine, Department of Medicine, University of California, San Francisco, USA
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Ogwuche J, Chang CA, Ige O, Sagay AS, Chaplin B, Kahansim ML, Paul M, Elujoba M, Imade G, Kweashi G, Dai YC, Hsieh SC, Wang WK, Hamel DJ, Kanki PJ. Arbovirus surveillance in pregnant women in north-central Nigeria, 2019-2022. J Clin Virol 2023; 169:105616. [PMID: 37944259 PMCID: PMC10841754 DOI: 10.1016/j.jcv.2023.105616] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 10/25/2023] [Accepted: 10/29/2023] [Indexed: 11/12/2023]
Abstract
BACKGROUND The adverse impact of Zika (ZIKV), dengue (DENV), and chikungunya (CHIKV) virus infection in pregnancy has been recognized in Latin America and Asia but is not well studied in Africa. Although originally discovered in sub-Saharan Africa the non-specific clinical presentation of arbovirus infection may have hampered our detection of adverse clinical outcomes and outbreak. OBJECTIVE This prospective study of arbovirus infection in pregnant women in north-central Nigeria sought to characterize the prevalence of acute arbovirus infection and determine the impact on pregnancy and infant outcomes. METHODS In Nigeria, we screened 1006 pregnant women for ZIKV, DENV and CHIKV IgM/IgG by rapid test (2019-2022). Women with acute infection were recruited for prospective study and infants were examined for any abnormalities from delivery through six months. A subset of rapid test-reactive samples were confirmed using virus-specific ELISAs and neutralization assays. RESULTS The prevalence of acute infection (IgM+) was 3.8 %, 9.9 % and 11.8 % for ZIKV, DENV and CHIKV, respectively; co-infections represented 24.5 % of all infections. The prevalence in asymptomatic women was twice the level of symptomatic infection. We found a significant association between acute maternal ZIKV/DENV/CHIKV infection and any gross abnormal birth outcome (p = 0.014). CONCLUSIONS Over three rainy seasons, regular acute infection with ZIKV, DENV, and CHIKV was observed with significantly higher rates in pregnant women without symptoms. The potential association arbovirus infection with abnormal birth outcome warrants further prospective study to ascertain the clinical significance of these endemic arboviruses in Africa.
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Affiliation(s)
| | - Charlotte Ajeong Chang
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Olukemi Ige
- Jos University Teaching Hospital, University of Jos, Jos, Nigeria
| | - Atiene S Sagay
- Jos University Teaching Hospital, University of Jos, Jos, Nigeria
| | - Beth Chaplin
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | | | - Michael Paul
- Jos University Teaching Hospital, University of Jos, Jos, Nigeria
| | | | - Godwin Imade
- Jos University Teaching Hospital, University of Jos, Jos, Nigeria
| | | | - Yu-Ching Dai
- Department of Tropical Medicine, Medical Microbiology and Pharmacology, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, HI, USA
| | - Szu-Chia Hsieh
- Department of Tropical Medicine, Medical Microbiology and Pharmacology, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, HI, USA
| | - Wei-Kung Wang
- Department of Tropical Medicine, Medical Microbiology and Pharmacology, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, HI, USA
| | - Donald J Hamel
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Phyllis J Kanki
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
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20
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Chatterjee S, Ghosh S, Datey A, Mahish C, Chattopadhyay S, Chattopadhyay S. Chikungunya virus perturbs the Wnt/β-catenin signaling pathway for efficient viral infection. J Virol 2023; 97:e0143023. [PMID: 37861335 PMCID: PMC10688348 DOI: 10.1128/jvi.01430-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 09/16/2023] [Indexed: 10/21/2023] Open
Abstract
IMPORTANCE Being obligate parasites, viruses use various host cell machineries in effectively replicating their genome, along with virus-encoded enzymes. In order to carry out infection and pathogenesis, viruses are known to manipulate fundamental cellular processes in cells and interfere with host gene expression. Several viruses interact with the cellular proteins involved in the Wnt/β-catenin pathway; however, reports regarding the involvement of protein components of the Wnt/β-catenin pathway in Chikungunya virus (CHIKV) infection are scarce. Additionally, there are currently no remedies or vaccines available for CHIKV. This is the first study to report that modulation of the Wnt/β-catenin pathway is crucial for effective CHIKV infection. These investigations deepen the understanding of the underlying mechanisms of CHIKV infection and offer new avenue for developing effective countermeasures to efficiently manage CHIKV infection.
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Affiliation(s)
- Sanchari Chatterjee
- Institute of Life Sciences, Bhubaneswar, India
- Regional Centre for Biotechnology, Faridabad, India
| | - Soumyajit Ghosh
- Institute of Life Sciences, Bhubaneswar, India
- Regional Centre for Biotechnology, Faridabad, India
| | - Ankita Datey
- Institute of Life Sciences, Bhubaneswar, India
- School of Biotechnology, Kalinga Institute of Industrial Technology (KIIT) University, Bhubaneswar, India
| | - Chandan Mahish
- National Institute of Science Education and Research, an OCC of Homi Bhaba National Institute, Bhubaneswar, Odisha, India
| | - Subhasis Chattopadhyay
- National Institute of Science Education and Research, an OCC of Homi Bhaba National Institute, Bhubaneswar, Odisha, India
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21
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Rakotomalala FA, Bouillin J, Randriarimanana SD, Thaurignac G, Maharavo L, Raberahona M, Razafindrakoto L, Rasoanarivo J, Rakoto-Andrianarivelo M, Rakoto DAD, Babin FX, Rasamoelina T, Delaporte E, Samison LH, Peeters M, Nerrienet E, Ayouba A. High Seroprevalence of IgG Antibodies to Multiple Arboviruses in People Living with HIV (PLWHIV) in Madagascar. Viruses 2023; 15:2258. [PMID: 38005934 PMCID: PMC10674502 DOI: 10.3390/v15112258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/03/2023] [Accepted: 11/10/2023] [Indexed: 11/26/2023] Open
Abstract
To estimate the prevalence of IgG antibodies against six arboviruses in people living with HIV-1 (PLWHIV) in Madagascar, we tested samples collected between January 2018 and June 2021. We used a Luminex-based serological assay to detect IgG antibodies against antigens from Dengue virus serotypes 1-4 (DENV1-4), Zika virus (ZIKV), West Nile virus (WNV), Usutu virus (USUV), Chikungunya virus (CHIKV), and O'nyong nyong virus (ONNV). Of the 1036 samples tested, IgG antibody prevalence was highest for ONNV (28.4%), CHIKV (26.7%), WNV-NS1 (27.1%), DENV1 (12.4%), USUV (9.9%), and DENV3 (8.9%). ZIKV (4.9%), DENV2 (4.6%), WNV-D3 (5.1%), and DENV4 (1.4%) were lower. These rates varied by province of origin, with the highest rates observed in Toamasina, on the eastern coast (50.5% and 56.8%, for CHIKV and ONNV, respectively). The seroprevalence increased with age for DENV1 and 3 (p = 0.006 and 0.038, respectively) and WNV DIII (p = 0.041). The prevalence of IgG antibodies against any given arborvirus varied over the year and significantly correlated with rainfalls in the different areas (r = 0.61, p = 0.036). Finally, we found a significant correlation between the seroprevalence of antibodies against CHIKV and ONNV and the HIV-1 RNA plasma viral load. Thus, PLWHIV in Madagascar are highly exposed to various arboviruses. Further studies are needed to explain some of our findings.
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Affiliation(s)
- Fetra Angelot Rakotomalala
- Centre d’Infectiologie Charles Mérieux, Université d’Antananarivo, Antananarivo 101, Madagascar; (F.A.R.); (S.D.R.); (L.M.); (M.R.-A.); (T.R.); (L.H.S.)
- TransVIHMI, University of Montpellier, Institut National de la Santé et de la Recherche Médicale (INSERM), Institut de Recherche pour le Développement (IRD), 34394 Montpellier, France; (J.B.); (G.T.); (E.D.); (M.P.)
- Ecole Doctorale Sciences de la Vie et de l’Environnement, Université d’Antananarivo, Antananarivo 101, Madagascar;
| | - Julie Bouillin
- TransVIHMI, University of Montpellier, Institut National de la Santé et de la Recherche Médicale (INSERM), Institut de Recherche pour le Développement (IRD), 34394 Montpellier, France; (J.B.); (G.T.); (E.D.); (M.P.)
| | - Santatriniaina Dauphin Randriarimanana
- Centre d’Infectiologie Charles Mérieux, Université d’Antananarivo, Antananarivo 101, Madagascar; (F.A.R.); (S.D.R.); (L.M.); (M.R.-A.); (T.R.); (L.H.S.)
| | - Guillaume Thaurignac
- TransVIHMI, University of Montpellier, Institut National de la Santé et de la Recherche Médicale (INSERM), Institut de Recherche pour le Développement (IRD), 34394 Montpellier, France; (J.B.); (G.T.); (E.D.); (M.P.)
| | - Luca Maharavo
- Centre d’Infectiologie Charles Mérieux, Université d’Antananarivo, Antananarivo 101, Madagascar; (F.A.R.); (S.D.R.); (L.M.); (M.R.-A.); (T.R.); (L.H.S.)
- Ecole Doctorale Sciences de la Vie et de l’Environnement, Université d’Antananarivo, Antananarivo 101, Madagascar;
| | - Mihaja Raberahona
- Service des Maladies Infectieuses, Centre Hôspitalier Universitaire Joseph Raseta de Befelatanana, Antananarivo 101, Madagascar;
| | - Lucien Razafindrakoto
- Service de Pneumo-Phtisiologie, Centre Hospitalier Universitaire Analakininina, Toamasina 501, Madagascar;
| | - Jasmina Rasoanarivo
- Secrétariat Exécutif du Comité National de la Lutte Contre le SIDA, Antananarivo 101, Madagascar;
| | - Mala Rakoto-Andrianarivelo
- Centre d’Infectiologie Charles Mérieux, Université d’Antananarivo, Antananarivo 101, Madagascar; (F.A.R.); (S.D.R.); (L.M.); (M.R.-A.); (T.R.); (L.H.S.)
| | - Danielle Aurore Doll Rakoto
- Ecole Doctorale Sciences de la Vie et de l’Environnement, Université d’Antananarivo, Antananarivo 101, Madagascar;
| | | | - Tahinamandranto Rasamoelina
- Centre d’Infectiologie Charles Mérieux, Université d’Antananarivo, Antananarivo 101, Madagascar; (F.A.R.); (S.D.R.); (L.M.); (M.R.-A.); (T.R.); (L.H.S.)
| | - Eric Delaporte
- TransVIHMI, University of Montpellier, Institut National de la Santé et de la Recherche Médicale (INSERM), Institut de Recherche pour le Développement (IRD), 34394 Montpellier, France; (J.B.); (G.T.); (E.D.); (M.P.)
| | - Luc Hervé Samison
- Centre d’Infectiologie Charles Mérieux, Université d’Antananarivo, Antananarivo 101, Madagascar; (F.A.R.); (S.D.R.); (L.M.); (M.R.-A.); (T.R.); (L.H.S.)
| | - Martine Peeters
- TransVIHMI, University of Montpellier, Institut National de la Santé et de la Recherche Médicale (INSERM), Institut de Recherche pour le Développement (IRD), 34394 Montpellier, France; (J.B.); (G.T.); (E.D.); (M.P.)
| | | | - Ahidjo Ayouba
- TransVIHMI, University of Montpellier, Institut National de la Santé et de la Recherche Médicale (INSERM), Institut de Recherche pour le Développement (IRD), 34394 Montpellier, France; (J.B.); (G.T.); (E.D.); (M.P.)
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Magalhaes T, Portilho MM, Moreira PSS, Marinho ML, Dias WP, Gonçalves NM, Rodrigues OAS, Montes J, Reis L, Jesus DF, Silva TO, Dultra LS, Nery JS, Ribeiro GS. Validation of the use of dried blood spots in a chikungunya virus IgG serological assay. J Immunol Methods 2023; 522:113571. [PMID: 37742825 DOI: 10.1016/j.jim.2023.113571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 09/15/2023] [Accepted: 09/21/2023] [Indexed: 09/26/2023]
Abstract
Dried blood spot (DBS) sampling is a simple, fast, and minimally invasive blood collection method that is particularly useful for diagnostic or epidemiological studies in hard-to-reach populations. Nevertheless, the use of DBS in assays that have been optimized with gold-standard samples (serum or plasma) must be optimized to yield reliable results. Here, we describe the validation of DBS in a commercial assay to measure IgG against chikungunya virus (CHIKV IgG ELISA; Euroimmun, Lübeck, Germany). During a health survey of people experiencing homelessness in Salvador, Brazil, between September 2021 and February 2022, a subset (75/523; 14.3%) of the study participants had paired capillary (for DBS preparation) and venous (for serum separation) blood samples collected. A pilot optimization test was initially performed with 17 paired samples to compare the CHIKV IgG ELISA absorbance values between serum and three different dilutions of DBS. Based on the preliminary results, the best DBS dilution was selected for a final evaluation comparing paired serum and DBS samples from 58 participants. The sensitivity and specificity of the CHIKV ELISA of DBS compared to sera were 100% (95% C.I.: 85.8-100%) and 100% (95% C.I.: 93-100%), respectively. In the linear regression analysis, a coefficient of determination (R2) value of 0.98 indicated the excellent performance of DBS in predicting the serum levels of IgG CHIKV antibodies. Our findings suggest that DBS at an optimized dilution is reliable for investigating the prevalence of CHIKV IgG antibodies during population surveys in the commercial assay tested here.
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Affiliation(s)
- Tereza Magalhaes
- Department of Entomology, Texas A&M University, College Station, EUA, United States of America; Faculdade de Medicina da Bahia, Universidade Federal da Bahia, Salvador, Brazil
| | - Moyra M Portilho
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, BraZil
| | | | - Milena L Marinho
- Instituto de Saúde Coletiva, Universidade Federal da Bahia, Salvador, Brazil
| | - Wiler P Dias
- Instituto de Saúde Coletiva, Universidade Federal da Bahia, Salvador, Brazil
| | | | | | - Jane Montes
- Instituto de Saúde Coletiva, Universidade Federal da Bahia, Salvador, Brazil
| | - Leila Reis
- Centro de Estudos Afro-Orientais, Universidade Federal da Bahia, Salvador, Brazil
| | - Dilma F Jesus
- Secretaria Municipal de Saúde de Salvador, Salvador, Brazil
| | - Tarcísio O Silva
- Instituto de Saúde Coletiva, Universidade Federal da Bahia, Salvador, Brazil
| | - Lua S Dultra
- Instituto de Saúde Coletiva, Universidade Federal da Bahia, Salvador, Brazil; Secretaria Municipal de Saúde de Salvador, Salvador, Brazil; Centro de Ciências da Saúde, Universidade Federal do Recôncavo da Bahia, Santo Antônio de Jesus, Brazil
| | - Joilda S Nery
- Instituto de Saúde Coletiva, Universidade Federal da Bahia, Salvador, Brazil
| | - Guilherme S Ribeiro
- Faculdade de Medicina da Bahia, Universidade Federal da Bahia, Salvador, Brazil; Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, BraZil.
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23
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Pavi CP, Prá ID, Cadamuro RD, Kanzaki I, Lacerda JWF, Sandjo LP, Bezerra RM, Segovia JFO, Fongaro G, Silva IT. Amazonian medicinal plants efficiently inactivate Herpes and Chikungunya viruses. Biomed Pharmacother 2023; 167:115476. [PMID: 37713986 DOI: 10.1016/j.biopha.2023.115476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 09/01/2023] [Accepted: 09/07/2023] [Indexed: 09/17/2023] Open
Abstract
The Amazonian species investigated in this research are commonly utilized for their anti-inflammatory properties and their potential against various diseases. However, there is a lack of scientifically supported information validating their biological activities. In this study, a total of seventeen ethanolic or aqueous extracts derived from eight Amazonian medicinal plants were evaluated for their activity against Herpes Simplex type 1 (HSV-1) and Chikungunya viruses (CHIKV). Cytotoxicity was assessed using the sulforhodamine B method, and the antiviral potential was determined through a plaque number reduction assay. Virucidal tests were conducted according to EN 14476 standards for the most potent extracts. Additionally, the chemical composition of the most active extracts was investigated. Notably, the LMLE10, LMBA11, MEBE13, and VABE17 extracts exhibited significant activity against CHIKV and the non-acyclovir-resistant strain of HSV-1 (KOS) (SI > 9). The MEBE13 extract demonstrated unique inhibition against the acyclovir-resistant strain of HSV-1 (29-R). Virucidal assays indicated a higher level of virucidal activity compared to their antiviral activity. Moreover, the virucidal capacity of the most active extracts was sustained when tested in the presence of protein solutions against HSV-1 (KOS). In the application of EN 14476 against HSV-1 (KOS), the LMBA11 extract achieved a 99.9% inhibition rate, while the VABE17 extract reached a 90% inhibition rate. This study contributes to the understanding of medicinal species native to the Brazilian Amazon, revealing their potential in combating viral infections that have plagued humanity for centuries (HSV-1) or currently lack specific therapeutic interventions (CHIKV).
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Affiliation(s)
- Catielen Paula Pavi
- Laboratory of Applied Virology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianópolis, SC 88040-900, Brazil
| | - Isabella Dai Prá
- Laboratory of Applied Virology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianópolis, SC 88040-900, Brazil
| | - Rafael Dorighello Cadamuro
- Laboratory of Applied Virology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianópolis, SC 88040-900, Brazil
| | - Isamu Kanzaki
- Laboratory of Bioprospection, University of Brasilia, Campus Darcy Ribeiro, Brasília, DF 70910-900, Brazil
| | - Jhuly Wellen Ferreira Lacerda
- Laboratory of Chemistry of Natural Products, Department of Chemistry, Federal University of Santa Catarina, Florianópolis, SC 88040-900, Brazil
| | - Louis Pergaud Sandjo
- Laboratory of Chemistry of Natural Products, Department of Chemistry, Federal University of Santa Catarina, Florianópolis, SC 88040-900, Brazil
| | - Roberto Messias Bezerra
- Laboratory of Bioprospection and Atomic Absorption, Federal University of Amapa, Macapá, AP 68903-419, Brazil
| | | | - Gislaine Fongaro
- Laboratory of Applied Virology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianópolis, SC 88040-900, Brazil
| | - Izabella Thaís Silva
- Laboratory of Applied Virology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianópolis, SC 88040-900, Brazil; Laboratory of Pharmacognosy, Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Florianópolis, SC 88040-900, Brazil.
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He Y, Pan Z, Liu Y, Jiang L, Peng H, Zhao P, Qi Z, Liu Y, Tang H. Identification of tyrphostin AG879 and A9 inhibiting replication of chikungunya virus by screening of a kinase inhibitor library. Virology 2023; 588:109900. [PMID: 37832343 DOI: 10.1016/j.virol.2023.109900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 09/16/2023] [Accepted: 09/29/2023] [Indexed: 10/15/2023]
Abstract
Chikungunya virus (CHIKV) is a globally public health threat. There are currently no medications available to treat CHIKV infection. High-throughput screening of 419 kinase inhibitors was performed based on the cytopathic effect method, and six kinase inhibitors with reduced cytopathic effects, including tyrphostin AG879 (AG879), tyrphostin 9 (A9), sorafenib, sorafenib tosylate, regorafenib, and TAK-632, were identified. The anti-CHIKV activities of two receptor tyrosine kinase inhibitors, AG879 and A9, that have not been previously reported, were selected for further evaluation. The results indicated that 50% cytotoxic concentration (CC50) of AG879 and A9 in Vero cells were greater than 30 μM and 6.50 μM, respectively and 50% effective concentration (EC50) were 0.84 μM and 0.36 μM, respectively. The time-of-addition and time-of-removal assays illustrated that both AG879 and A9 function in the middle stage of CHIKV life cycle. Further, AG879 and A9 do not affect viral attachment; however, they inhibit viral RNA replication, and exhibit antiviral activity against CHIKV Eastern/Central/South African and Asian strains, Ross River virus and Sindbis virus in vitro.
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Affiliation(s)
- Yanhua He
- Department of Microbiology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, PR China
| | - Zhendong Pan
- Department of Microbiology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, PR China
| | - Yan Liu
- Department of Microbiology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, PR China
| | - Liangliang Jiang
- Department of Microbiology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, PR China
| | - Haoran Peng
- Department of Microbiology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, PR China
| | - Ping Zhao
- Department of Microbiology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, PR China
| | - Zhongtian Qi
- Department of Microbiology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, PR China
| | - Yangang Liu
- Department of Microbiology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, PR China.
| | - Hailin Tang
- Department of Microbiology, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, PR China.
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Pereira VIC, de Brito Junior LC, Falcão LFM, da Costa Vasconcelos PF, Quaresma JAS, Berg AVVD, Paixão APS, Ferreira RIS, Diks IBC. Monocytes subpopulations pattern in the acute respiratory syndrome coronavirus 2 virus infection and after long COVID-19. Int Immunopharmacol 2023; 124:110994. [PMID: 37804653 DOI: 10.1016/j.intimp.2023.110994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 09/21/2023] [Accepted: 09/22/2023] [Indexed: 10/09/2023]
Abstract
INTRODUTION AND OBJECTIVE The present study sought to characterize the pattern of monocyte subpopulations in patients during the course of the infections caused by SARS-CoV-2 virus or who presented long COVID-19 syndrome compared to monocytes from patients with zika virus (Zika) or chikungunya virus (CHIKV). CASUISTRY Study with 89 peripheral blood samples from patients, who underwent hemogram and serology (IgG and IgM) for detection of Zika (Control Group 1, n = 18) or CHIKV (Control Group 2, n = 9), and from patients who underwent hemogram and reverse transcription polymerase chain reaction for detection of SARS-CoV-2 at the acute phase of the disease (Group 3, n = 19); and of patients who presented long COVID-19 syndrome (Group 4, n = 43). The monocyte and subpopulations counts were performed by flow cytometry. RESULTS No significant difference was observed in the total number of monocytes between the groups. The classical (CD14++CD16-) and intermediate (CD14+CD16+) monocytes counts were increased in patients with acute infection or with long COVID-19 syndrome. The monocytes subpopulations counts were lower in patients with infection Zika or CHIKV. CONCLUSION Increase in the monocyte subpopulations in patients with acute infection or with long COVID-19 syndrome may be an important finding of differentiated from the infection Zika or CHIKV.
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Affiliation(s)
| | - Lacy Cardoso de Brito Junior
- Institute of Biological Sciences at UFPA. Laboratory of General Pathology - Immunopathology and Cytology at FederalUniversity of Pará. Belém, Pará, Brazil.
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McCarty JM, Bedell L, Mendy J, Coates EE, Chen GL, Ledgerwood JE, Tredo SR, Warfield KL, Richardson JS. Chikungunya virus virus-like particle vaccine is well tolerated and immunogenic in chikungunya seropositive individuals. Vaccine 2023; 41:6146-6149. [PMID: 37690874 DOI: 10.1016/j.vaccine.2023.08.086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 08/29/2023] [Accepted: 08/30/2023] [Indexed: 09/12/2023]
Abstract
In a phase 2 safety and immunogenicity study of a chikungunya virus virus-like particle (CHIKV VLP) vaccine in an endemic region, of 400 total participants, 78 were found to be focus reduction neutralizing antibody seropositive at vaccination despite being ELISA seronegative at screening, of which 39 received vaccine. This post hoc analysis compared safety and immunogenicity of CHIKV VLP vaccine in seropositive (n = 39) versus seronegative (n = 155) vaccine recipients for 72 weeks post-vaccination. There were no differences in solicited adverse events, except injection site swelling in 10.3% of seropositive versus 0.6% of seronegative recipients (p = 0.006). Baseline seropositive vaccine recipients had stronger post-vaccination luciferase neutralizing antibody responses versus seronegative recipients (peak geometric mean titer of 3594 and 1728, respectively) persisting for 72 weeks, with geometric mean fold increases of 3.1 and 13.2, respectively. In this small study, CHIKV VLP vaccine was well-tolerated and immunogenic in individuals with pre-existing immunity. ClinicalTrials.gov Identifier: NCT02562482.
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Affiliation(s)
| | - Lisa Bedell
- Emergent BioSolutions Inc, Gaithersburg, MD, USA.
| | - Jason Mendy
- Emergent BioSolutions Inc, Gaithersburg, MD, USA.
| | - Emily E Coates
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA.
| | - Grace L Chen
- Formerly, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA.
| | - Julie E Ledgerwood
- Formerly, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA.
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Li R, Sun K, Tuplin A, Harris M. A structural and functional analysis of opal stop codon translational readthrough during Chikungunya virus replication. J Gen Virol 2023; 104:10.1099/jgv.0.001909. [PMID: 37862073 PMCID: PMC7615711 DOI: 10.1099/jgv.0.001909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2023] Open
Abstract
Chikungunya virus (CHIKV) is an alphavirus, transmitted by Aedes species mosquitoes. The CHIKV single-stranded positive-sense RNA genome contains two open reading frames, coding for the non-structural (nsP) and structural proteins of the virus. The non-structural polyprotein precursor is proteolytically cleaved to generate nsP1-4. Intriguingly, most isolates of CHIKV (and other alphaviruses) possess an opal stop codon close to the 3' end of the nsP3 coding sequence and translational readthrough is necessary to produce full-length nsP3 and the nsP4 RNA polymerase. Here we investigate the role of this stop codon by replacing the arginine codon with each of the three stop codons in the context of both a subgenomic replicon and infectious CHIKV. Both opal and amber stop codons were tolerated in mammalian cells, but the ochre was not. In mosquito cells all three stop codons were tolerated. Using SHAPE analysis we interrogated the structure of a putative stem loop 3' of the stop codon and used mutagenesis to probe the importance of a short base-paired region at the base of this structure. Our data reveal that this stem is not required for stop codon translational readthrough, and we conclude that other factors must facilitate this process to permit productive CHIKV replication.
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Affiliation(s)
- Raymond Li
- School of Molecular and Cellular Biology, Faculty of Biological Sciences, and Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds, West Yorkshire, LS2 9JT, UK
| | | | - Andrew Tuplin
- School of Molecular and Cellular Biology, Faculty of Biological Sciences, and Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds, West Yorkshire, LS2 9JT, UK
| | - Mark Harris
- School of Molecular and Cellular Biology, Faculty of Biological Sciences, and Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds, West Yorkshire, LS2 9JT, UK
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Velu RM, Kwenda G, Bosomprah S, Chisola MN, Simunyandi M, Chisenga CC, Bumbangi FN, Sande NC, Simubali L, Mburu MM, Tembo J, Bates M, Simuunza MC, Chilengi R, Orba Y, Sawa H, Simulundu E. Ecological Niche Modeling of Aedes and Culex Mosquitoes: A Risk Map for Chikungunya and West Nile Viruses in Zambia. Viruses 2023; 15:1900. [PMID: 37766306 PMCID: PMC10535978 DOI: 10.3390/v15091900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/25/2023] [Accepted: 08/26/2023] [Indexed: 09/29/2023] Open
Abstract
The circulation of both West Nile Virus (WNV) and Chikungunya Virus (CHIKV) in humans and animals, coupled with a favorable tropical climate for mosquito proliferation in Zambia, call for the need for a better understanding of the ecological and epidemiological factors that govern their transmission dynamics in this region. This study aimed to examine the contribution of climatic variables to the distribution of Culex and Aedes mosquito species, which are potential vectors of CHIKV, WNV, and other arboviruses of public-health concern. Mosquitoes collected from Lusaka as well as from the Central and Southern provinces of Zambia were sorted by species within the Culex and Aedes genera, both of which have the potential to transmit viruses. The MaxEnt software was utilized to predict areas at risk of WNV and CHIKV based on the occurrence data on mosquitoes and environmental covariates. The model predictions show three distinct spatial hotspots, ranging from the high-probability regions to the medium- and low-probability regions. Regions along Lake Kariba, the Kafue River, and the Luangwa Rivers, as well as along the Mumbwa, Chibombo, Kapiri Mposhi, and Mpika districts were predicted to be suitable habitats for both species. The rainfall and temperature extremes were the most contributing variables in the predictive models.
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Affiliation(s)
- Rachel Milomba Velu
- Centre for Infectious Disease Research in Zambia, Lusaka P.O. Box 34681, Zambia; (S.B.); (M.S.); (C.C.C.); (R.C.)
- Department of Disease Control, School of Veterinary Medicine, University of Zambia, Lusaka P.O. Box 32379, Zambia; (M.C.S.); (H.S.)
| | - Geoffrey Kwenda
- Department of Biomedical Sciences, School of Health Sciences, University of Zambia, Lusaka P.O. Box 50110, Zambia;
| | - Samuel Bosomprah
- Centre for Infectious Disease Research in Zambia, Lusaka P.O. Box 34681, Zambia; (S.B.); (M.S.); (C.C.C.); (R.C.)
- Department of Biostatistics, School of Public Health, University of Ghana, Accra P.O. Box LG13, Ghana
| | - Moses Ngongo Chisola
- Department of Geography and Environmental Studies, School of Natural Sciences, University of Zambia, Lusaka P.O. Box 32379, Zambia;
| | - Michelo Simunyandi
- Centre for Infectious Disease Research in Zambia, Lusaka P.O. Box 34681, Zambia; (S.B.); (M.S.); (C.C.C.); (R.C.)
| | - Caroline Cleopatra Chisenga
- Centre for Infectious Disease Research in Zambia, Lusaka P.O. Box 34681, Zambia; (S.B.); (M.S.); (C.C.C.); (R.C.)
| | - Flavien Nsoni Bumbangi
- Department of Medicine and Clinical Sciences, School of Medicine, Eden University, Lusaka P.O. Box 37727, Zambia;
| | - Nicholus Chintu Sande
- National Malaria Elimination Centre, Chainama Hills Hospital Grounds, Lusaka P.O. Box 32509, Zambia;
| | - Limonty Simubali
- Macha Research Trust, Choma P.O. Box 630166, Zambia; (L.S.); (M.M.M.)
| | | | - John Tembo
- HerpeZ, University Teaching Hospital, Lusaka 10101, Zambia; (J.T.); (M.B.)
| | - Matthew Bates
- HerpeZ, University Teaching Hospital, Lusaka 10101, Zambia; (J.T.); (M.B.)
- Joseph Banks Laboratories, School of Life and Environmental Sciences, University of Lincoln, Lincolnshire LN6 7TS, UK
| | - Martin Chitolongo Simuunza
- Department of Disease Control, School of Veterinary Medicine, University of Zambia, Lusaka P.O. Box 32379, Zambia; (M.C.S.); (H.S.)
- Africa Centre of Excellence for Infectious Diseases of Humans and Animals, University of Zambia, Lusaka P.O. Box 32379, Zambia
| | - Roma Chilengi
- Centre for Infectious Disease Research in Zambia, Lusaka P.O. Box 34681, Zambia; (S.B.); (M.S.); (C.C.C.); (R.C.)
- Zambia National Public Health Institute, Ministry of Health, Lusaka P.O. Box 51925, Zambia
| | - Yasuko Orba
- Division of Molecular Pathobiology, International Institute for Zoonosis Control, Hokkaido University, N 20 W10, Kita-Ku, Sapporo 001-0020, Japan;
- International Collaboration Unit, International Institute for Zoonosis Control, Hokkaido University, Hokkaido 060-0808, Japan
- One Health Research Center, Hokkaido University, Sapporo 001-0020, Japan
| | - Hirofumi Sawa
- Department of Disease Control, School of Veterinary Medicine, University of Zambia, Lusaka P.O. Box 32379, Zambia; (M.C.S.); (H.S.)
- International Collaboration Unit, International Institute for Zoonosis Control, Hokkaido University, Hokkaido 060-0808, Japan
- One Health Research Center, Hokkaido University, Sapporo 001-0020, Japan
- Institute for Vaccine Research and Development, Hokkaido University, Sapporo 001-0021, Japan
- International Collaboration Unit, Global Virus Network, Baltimore, MD 21201, USA
| | - Edgar Simulundu
- Department of Disease Control, School of Veterinary Medicine, University of Zambia, Lusaka P.O. Box 32379, Zambia; (M.C.S.); (H.S.)
- Macha Research Trust, Choma P.O. Box 630166, Zambia; (L.S.); (M.M.M.)
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Mulderij-Jansen V, Gerstenbluth I, Duits A, Tami A, Bailey A. Contexts motivating protective behaviours related to Aedes-borne infectious diseases in Curaçao. BMC Public Health 2023; 23:1730. [PMID: 37670248 PMCID: PMC10481474 DOI: 10.1186/s12889-023-16624-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 08/26/2023] [Indexed: 09/07/2023] Open
Abstract
BACKGROUND Aedes aegypti, the vector of arboviral diseases such as dengue and Zika virus infections, is difficult to control. Effective interventions must be practicable, comprehensive, and sustained. There is evidence that community participation can enhance mosquito control. Therefore, countries are encouraged to develop and integrate community-based approaches to mosquito control to mitigate Aedes-borne infectious diseases (ABIDs). Health professionals must understand the contexts motivating individuals' behaviour to improve community participation and promote behavioural change. Therefore, this study aimed to determine how contexts shaped individuals' protective behaviours related to ABIDs in Curaçao. METHODS From April 2019 to September 2020, a multi-method qualitative study applying seven (n = 54) focus group discussions and twenty-five in-depth interviews with locals was performed in Curaҫao. The study was designed based on the Health Belief Model (HBM). Two cycles of inductive and deductive coding were employed, and Nvivo software was used to manage and analyse the data. RESULTS In this study, low media coverage (external cue to action) and limited experience with the symptoms of ABIDs (internal cue to action) were linked with a low perceived susceptibility and severity of ABIDs (low perceived threat). The low perceived threat was linked with reduced health-seeking behaviour (HSB) to prevent and control ABIDs. We also found that the perceived barriers outweigh the perceived benefits of ABID prevention and control interventions, obstructing HSB. On the one hand, insufficient knowledge reduced self-efficacy but contrary to expected, having good knowledge did not promote HSB. Lastly, we found that our participants believe that they are responsible for preventing ABIDs (internal locus of control) but at the same time indicated that their success depends on the efforts of the community and the health system (external locus of control). CONCLUSIONS This study used the HBM to explain individual changes in HSB concerning ABIDs prevention and control in Curaçao. We can conclude that the perceived threat (perceived susceptibility and severity) and perceived barriers played an essential role in changing HSB. Health professionals must consider these two concepts' implications when designing a bottom-up approach for ABIDs control; otherwise, community participation will remain minimal.
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Affiliation(s)
- Vaitiare Mulderij-Jansen
- Department of Medical Microbiology and Infection Prevention, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
- International Development Studies, Department of Human Geography and Spatial Planning, Faculty of Geosciences, Utrecht University, Utrecht, Netherlands.
| | - Izzy Gerstenbluth
- Department of Epidemiology, Curaçao Biomedical & Health Research Institute, Willemstad, Curaçao
| | - Ashley Duits
- Institute for Medical Education, University Medical Center Groningen, Groningen, The Netherlands
- Department of Immunology, Curaçao Biomedical & Health Research Institute, Willemstad, Curaçao
- Red Cross Blood Bank Foundation, Willemstad, Curaçao
| | - Adriana Tami
- Department of Medical Microbiology and Infection Prevention, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Ajay Bailey
- International Development Studies, Department of Human Geography and Spatial Planning, Faculty of Geosciences, Utrecht University, Utrecht, Netherlands
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Wang L, Sanon A, Khoiriyah Z, Verwimp S, Abdelnabi R, Delang L. Tarsal exposure to atovaquone inhibits chikungunya virus transmission by Aedes aegypti mosquitoes, but not the transmission of Zika virus. Antiviral Res 2023; 217:105694. [PMID: 37532005 DOI: 10.1016/j.antiviral.2023.105694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 07/10/2023] [Accepted: 07/30/2023] [Indexed: 08/04/2023]
Abstract
The antimalarial drug atovaquone was recently reported to inhibit the in vitro replication of different arboviruses, including chikungunya virus (CHIKV) and Zika virus (ZIKV). Furthermore, atovaquone was shown to block Plasmodium parasite transmission by Anopheles mosquitoes when the mosquitoes were exposed to low concentrations on treated surfaces (i.e. tarsal exposure). Therefore, we evaluated the anti-CHIKV and -ZIKV effects of atovaquone via tarsal exposure in Aedes aegypti mosquitoes. We first confirmed that atovaquone exerted a dose-dependent antiviral effect on CHIKV and ZIKV replication in mosquito-derived cells. The modest antiviral effect could be rescued by adding exogenous uridine. Next, we assessed the effect of tarsal exposure to atovaquone on the fitness of Ae. aegypti. Concentrations up to 100 μmol/m2 did not affect the fecundity and egg-hatching rate. No significant effect on mosquito survival was observed when mosquitoes were exposed to concentrations up to 25 μmol/m2. To evaluate the antiviral effect of atovaquone against CHIKV, we exposed female mosquitoes to 100 μmol/m2 atovaquone for 1h, after which the mosquitoes were immediately infected with CHIKV or ZIKV via bloodmeal. Atovaquone did not significantly reduce ZIKV or CHIKV infection in Ae. aegypti, but successfully blocked the transmission of CHIKV in saliva. Tarsal exposure to antiviral drugs could therefore be a potential new strategy to reduce virus transmission by mosquitoes.
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Affiliation(s)
- Lanjiao Wang
- KU Leuven Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Laboratory of Virology and Chemotherapy, Herestraat 49, B-3000, Leuven, Belgium
| | - Aboubakar Sanon
- KU Leuven Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Laboratory of Virology and Chemotherapy, Herestraat 49, B-3000, Leuven, Belgium; Laboratoire d'Entomologie Fondamentale et Appliquée, Université Joseph Ki-Zerbo, Burkina Faso
| | - Zakiyatul Khoiriyah
- KU Leuven Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Laboratory of Virology and Chemotherapy, Herestraat 49, B-3000, Leuven, Belgium; Laboratory of Virology, Wageningen University and Research, 6708 PB, Wageningen, the Netherlands
| | - Sam Verwimp
- KU Leuven Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Laboratory of Virology and Chemotherapy, Herestraat 49, B-3000, Leuven, Belgium
| | - Rana Abdelnabi
- KU Leuven Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Laboratory of Virology and Chemotherapy, Herestraat 49, B-3000, Leuven, Belgium
| | - Leen Delang
- KU Leuven Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Laboratory of Virology and Chemotherapy, Herestraat 49, B-3000, Leuven, Belgium.
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Santos JD, Garcia BCC, Rocha KLS, Silva TJ, da Silva Lage SL, de Souza Macedo M, Teixeira RA, Rocha-Vieira E, de Oliveira DB. Seroprevalence of Dengue, Chikungunya, and Zika viruses antibodies in a cohort of asymptomatic pregnant women in a low-income region of Minas Gerais, Brazil, 2018-2019. Braz J Microbiol 2023; 54:1853-1858. [PMID: 37454038 PMCID: PMC10484836 DOI: 10.1007/s42770-023-01054-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 06/16/2023] [Indexed: 07/18/2023] Open
Abstract
Dengue, Chikungunya, and Zika viruses are arthropod-borne viruses (arboviruses) that infect millions of individuals in tropical and subtropical regions. In the Americas, arboviruses represent a major public health problem, especially among vulnerable groups such as the elderly, children, and pregnant women. In this study, the seroprevalence of IgM or IgG against these arboviruses in pregnant, young women in the city of Diamantina, Minas Gerais, Brazil, and the influence of sociodemographic factors on the incidence/prevalence of infection in this group were investigated. A cross-sectional investigation was conducted on a total of 135 pregnant women for Dengue and Chikungunya IgM and 88 pregnant women for Zika IgG. Dengue IgM was found on the serum of twenty participants (14.8%) and only one woman (0.7%) tested positive for Chikungunya IgM. Zika IgG was found in three (3.4%) participants and 2 women who tested positive for Zika virus were also positive for Dengue virus IgM. Although the arboviruses seroprevalence was higher frequency among young (20-25 years old), brown and high school women, with a monthly income of 1-3 minimum wages, no association between these sociodemographic factors and arboviruses seroprevalence was found.
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Affiliation(s)
- Juliane Duarte Santos
- Programa Multicêntrico de Pós-Graduação Em Ciências Fisiológicas, Universidade Federal Dos Vales Do Jequitinhonha E Mucuri, Diamantina, MG, Brazil
| | - Bruna Caroline Chaves Garcia
- Programa Multicêntrico de Pós-Graduação Em Ciências Fisiológicas, Universidade Federal Dos Vales Do Jequitinhonha E Mucuri, Diamantina, MG, Brazil
| | - Kamila Lorene Soares Rocha
- Programa de Pós-Graduação Em Microbiologia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Thyago José Silva
- Programa de Pós-Graduação Em Ciências da Saúde, Universidade Federal Dos Vales Do Jequitinhonha E Mucuri, Diamantina, MG, Brazil
| | - Sanny Lara da Silva Lage
- Programa Multicêntrico de Pós-Graduação Em Ciências Fisiológicas, Universidade Federal Dos Vales Do Jequitinhonha E Mucuri, Diamantina, MG, Brazil
| | - Mariana de Souza Macedo
- Departamento de Nutrição, Universidade Federal Dos Vales Do Jequitinhonha E Mucuri, Diamantina, MG, Brazil
| | - Romero Alves Teixeira
- Departamento de Nutrição, Universidade Federal Dos Vales Do Jequitinhonha E Mucuri, Diamantina, MG, Brazil
| | - Etel Rocha-Vieira
- Programa Multicêntrico de Pós-Graduação Em Ciências Fisiológicas, Universidade Federal Dos Vales Do Jequitinhonha E Mucuri, Diamantina, MG, Brazil.
- Programa de Pós-Graduação Em Ciências da Saúde, Universidade Federal Dos Vales Do Jequitinhonha E Mucuri, Diamantina, MG, Brazil.
| | - Danilo Bretas de Oliveira
- Programa Multicêntrico de Pós-Graduação Em Ciências Fisiológicas, Universidade Federal Dos Vales Do Jequitinhonha E Mucuri, Diamantina, MG, Brazil.
- Programa de Pós-Graduação Em Ciências da Saúde, Universidade Federal Dos Vales Do Jequitinhonha E Mucuri, Diamantina, MG, Brazil.
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Burgueño A, Giovanetti M, Fonseca V, Morel N, Lima M, Castro E, Guimarães NR, Iani FCM, Bormida V, Cortinas MN, Ramas V, Coppola L, Bento AI, Franco L, Rico JM, Lourenço J, Alcantara LCJ, Chiparelli H. Genomic and eco-epidemiological investigations in Uruguay reveal local Chikungunya virus transmission dynamics during its expansion across the Americas in 2023. medRxiv 2023:2023.08.17.23294156. [PMID: 37646000 PMCID: PMC10462220 DOI: 10.1101/2023.08.17.23294156] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Uruguay experienced its first Chikungunya virus outbreak in 2023, resulting in a significant burden to its healthcare system. We conducted analysis based on real-time genomic surveillance (30 novel whole genomes) to offer timely insights into recent local transmission dynamics and eco-epidemiological factors behind its emergence and spread in the country.
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Affiliation(s)
- Analía Burgueño
- Laboratorio de Virus Emergentes/reemergentes. Unidad de Virología, Departamento de Laboratorios de Salud Pública
| | - Marta Giovanetti
- Instituto Rene Rachou, Fundação Oswaldo Cruz, Minas Gerais, Brazil
- Sciences and Technologies for Sustainable Development and One Health, Università Campus Bio-Medico di Roma, Italy
| | - Vagner Fonseca
- Department of Exact and Earth Sciences, University of the State of Bahia, Salvador, Brazil
- Coordenação de Vigilância, Preparação e Resposta à Emergências e Desastres (PHE), Organização Pan-Americana da Saúde / Organização Mundial da Saúde (OPAS/OMS), Brasilia DF, Brazil
| | - Noelia Morel
- Laboratorio de Virus Emergentes/reemergentes. Unidad de Virología, Departamento de Laboratorios de Salud Pública
| | - Mauricio Lima
- Laboratorio Central de Saúde Pública do Estado de Minas Gerais, Fundação Ezequiel Dias, Brazil
| | - Emerson Castro
- Laboratorio Central de Saúde Pública do Estado de Minas Gerais, Fundação Ezequiel Dias, Brazil
| | - Natália R. Guimarães
- Laboratorio Central de Saúde Pública do Estado de Minas Gerais, Fundação Ezequiel Dias, Brazil
| | - Felipe C. M. Iani
- Laboratorio Central de Saúde Pública do Estado de Minas Gerais, Fundação Ezequiel Dias, Brazil
| | - Victoria Bormida
- Laboratorio de Genómica Departamento de Laboratorios de Salud Pública, Uruguay
| | - Maria Noel Cortinas
- Laboratorio de Genómica Departamento de Laboratorios de Salud Pública, Uruguay
| | - Viviana Ramas
- Laboratorio de Virus Respiratorios, Unidad de Virología. Departamento de Laboratorios de Salud Pública, Uruguay
| | - Leticia Coppola
- Laboratorio de Virus Respiratorios, Unidad de Virología. Departamento de Laboratorios de Salud Pública, Uruguay
| | - Ana I. Bento
- Pandemic Prevention Initiative, The Rockefeller Foundation, Washington DC, USA
| | - Leticia Franco
- Infectious Hazards Management, Health Emergencies Department (PHE), Pan American Health Organization / World Health Organization (PAHO/WHO), Washington DC, USA
| | - Jairo Mendez Rico
- Infectious Hazards Management, Health Emergencies Department (PHE), Pan American Health Organization / World Health Organization (PAHO/WHO), Washington DC, USA
| | - José Lourenço
- BioISI (Biosystems and Integrative Sciences Institute), Faculdade de Ciências da Universidade de Lisboa
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Andrew A, Citartan M, Wong KA, Tang TH, Magdline Sia Henry S, Ch'ng ES. Analytical and Clinical Evaluation of a TaqMan Real-Time PCR Assay for the Detection of Chikungunya Virus. Microbiol Spectr 2023; 11:e0008823. [PMID: 37272795 PMCID: PMC10433969 DOI: 10.1128/spectrum.00088-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 05/16/2023] [Indexed: 06/06/2023] Open
Abstract
Due to the general symptoms presented by the Chikungunya virus (CHIKV)-infected patients, a laboratory test is needed to differentiate CHIKV from other viral infections. The reverse transcription-quantitative real-time PCR (RT-qPCR) is a rapid and sensitive diagnostic tool, and several assays have been developed for detecting and quantifying CHIKV. Since real-time amplification efficiency varies within and between laboratories, an assay must be validated before being used on patient samples. In this study, the diagnostic performance of a TaqMan RT-qPCR assay was evaluated using synthetic RNA and archived patient samples. The cutoff quantification cycle (Cq) value for the assay was determined by experimental evidence. We found the in-house assay was highly sensitive, with a detection limit of 3.95 RNA copies/reaction. The analytical specificity of the assay was 100%. The analytical cutoff Cq value was 37, corresponding to the mean Cq value of the detection limit. Using archived samples characterized previously, the sensitivity and specificity of the assay were 76% and 100%, respectively. The in-house assay was also compared with a commercial assay, and we found that the in-house assay had higher sensitivity. Although further evaluation with prospective patient samples is needed in the future, this validated RT-qPCR was sensitive and specific, which shows its potential to detect CHIKV in clinical samples. IMPORTANCE Chikungunya virus causes chikungunya fever, a disease characterized by fever, rash, and joint pain. In the early phase of infection, chikungunya fever is always misdiagnosed as other arbovirus infections, such as dengue. Laboratory tests such as RT-qPCR are therefore necessary to confirm CHIKV infection. We evaluated the performance of an in-house RT-qPCR assay, and our study shows that the assay could detect CHIKV in clinical samples. We also show the cutoff determination of the assay, which provides important guidance to scientists or researchers when implementing a new RT-qPCR assay in a laboratory.
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Affiliation(s)
- Anna Andrew
- Advanced Medical and Dental Institute, Universiti Sains Malaysia, Kepala Batas, Penang, Malaysia
- Faculty of Medicine and Health Sciences, Universiti Malaysia Sarawak, Kota Samarahan, Sarawak, Malaysia
| | - Marimuthu Citartan
- Advanced Medical and Dental Institute, Universiti Sains Malaysia, Kepala Batas, Penang, Malaysia
| | - Kiing Aik Wong
- Institute of Health and Community Medicine, Universiti Malaysia Sarawak, Kota Samarahan, Sarawak, Malaysia
| | - Thean Hock Tang
- Advanced Medical and Dental Institute, Universiti Sains Malaysia, Kepala Batas, Penang, Malaysia
| | - Sum Magdline Sia Henry
- Institute of Health and Community Medicine, Universiti Malaysia Sarawak, Kota Samarahan, Sarawak, Malaysia
| | - Ewe Seng Ch'ng
- Advanced Medical and Dental Institute, Universiti Sains Malaysia, Kepala Batas, Penang, Malaysia
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Chinedu Eneh S, Uwishema O, Nazir A, El Jurdi E, Faith Olanrewaju O, Abbass Z, Mustapha Jolayemi M, Mina N, kseiry L, Onyeaka H. Chikungunya outbreak in Africa: a review of the literature. Ann Med Surg (Lond) 2023; 85:3545-3552. [PMID: 37427196 PMCID: PMC10328686 DOI: 10.1097/ms9.0000000000000979] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Accepted: 06/10/2023] [Indexed: 07/11/2023] Open
Abstract
The Chikungunya virus (CHIKV), transmitted via mosquitoes, exhibits clinical manifestations ranging from headaches, myalgia and arthralgia to debilitating systemic malfunctions. Endemic to Africa, CHIKV has seen an increase in cases since it was first recorded in 1950. There has recently been an outbreak in numerous African nations. The authors aim to review the history and epidemiology of CHIKV in Africa, current outbreaks, strategies adopted by governments and/or international organisations to mitigate such an outbreak, and future recommendations that can be employed. Methodology Data were collected from medical journals published on Pubmed and Google Scholar, and from the official World Health Organisation, African and United States of America's Centres for Disease Control and Prevention websites. All articles considering CHIKV in Africa, including epidemiology, aetiology, prevention and management, were sought after. Results Since 2015, the number of Chikungunya cases in Africa has increased, reaching the highest values ever recorded, especially in 2018 and 2019. Even though numerous vaccination and therapeutic intervention trials are still ongoing, no advancement has been made so far, including drug approval. Current management is supportive, with preventative measures, such as insecticides, repellents, mosquito nets and habitat avoidance, paramount to halting disease spread. Conclusion In light of the recent CHIKV outbreak in Africa, local and global attempts are re-emerging to mitigate the eruption of the case of the lack of vaccines and antivirals, controlling the virus may be an arduous feat. Improving risk assessment, laboratory detection and research facilities should be a priority.
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Affiliation(s)
- Stanley Chinedu Eneh
- Oli Health Magazine Organization, Resarch and Education, Kigali, Rwanda
- Department of Community Health, Obafemi Awolowo University, Ile-Ife, Osun State
| | - Olivier Uwishema
- Oli Health Magazine Organization, Resarch and Education, Kigali, Rwanda
- Clinton Global Initiative University, New York, NY
- Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Abubakar Nazir
- Oli Health Magazine Organization, Resarch and Education, Kigali, Rwanda
| | - Elissa El Jurdi
- Oli Health Magazine Organization, Resarch and Education, Kigali, Rwanda
- Beirut Arab University, Faculty of Medicine
| | - Omotayo Faith Olanrewaju
- Oli Health Magazine Organization, Resarch and Education, Kigali, Rwanda
- Faculty of Pharmaceutical Sciences, University of Nigeria, Nsukka
| | - Zahraa Abbass
- Oli Health Magazine Organization, Resarch and Education, Kigali, Rwanda
- Lebanese International University, Faculty of sciences, Beirut, Lebanon
| | - Mubarak Mustapha Jolayemi
- Oli Health Magazine Organization, Resarch and Education, Kigali, Rwanda
- University of Ilorin, Faculty of Basic Medical Sciences, Ilorin, Nigeria
| | - Nour Mina
- Oli Health Magazine Organization, Resarch and Education, Kigali, Rwanda
- Beirut Arab University, Faculty of Medicine
| | - lea kseiry
- Oli Health Magazine Organization, Resarch and Education, Kigali, Rwanda
- Beirut Arab University, Faculty of Medicine
| | - Helen Onyeaka
- School of Chemical Engineering, University of Birmingham, Edgbaston, Birmingham, UK
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Kawonga F, Misinzo G, Pemba DF. Serological and molecular evidence of chikungunya virus infection among febrile outpatients seeking healthcare in Northern Malawi. Infect Ecol Epidemiol 2023; 13:2229573. [PMID: 37387776 PMCID: PMC10304438 DOI: 10.1080/20008686.2023.2229573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 06/21/2023] [Indexed: 07/01/2023] Open
Abstract
Introduction: Despite global evidence of chikungunya fever (CHIKF) in humans that is caused by chikungunya virus (CHIKV), little is known about the occurrence of CHIKF in Malawi. This study was conducted to determine the seroprevalence of CHIKF and to molecularly confirm the presence of CHIKV ribonucleic acid (RNA) among febrile outpatients seeking health care at Mzuzu Central Hospital in the Northern Region of Malawi. Methods: Enzyme-immunosorbent assay (ELISA) was used to detect the presence or absence of specific antibodies against CHIKV. Reversetranscription polymerase chain reaction (RT-PCR) was conducted on randomly selected anti-CHIKV IgM-positive samples to detect CHIKV RNA. Results: Out of 119 CHIKF suspected samples analyzed, 73 tested positive for anti-CHIKV IgM antibodies, with an overall seroprevalence of 61.3%. Most of the CHIKV infected individuals presented with joint pain, abdominal pain, vomiting and nose bleeding with seroprevalence of 45.2%, 41.1%, 16.4% and 12.3%, respectively. All the randomly selected samples that were positive for CHIKV anti-IgM by ELISAhad detectable CHIKV RNA by RT-PCR. Conclusion: The presence of anti-CHIKV IgM antibodies suggests the presence of recent CHIKV infection. We therefore recommend for the inclusion of CHIKF as the differential diagnosis in febrile ill patients in Mzuzu city, Malawi.
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Affiliation(s)
- Flywell Kawonga
- Department of Veterinary Microbiology, Parasitology and Biotechnology, College of Veterinary Medicine and Biomedical Sciences, Sokoine University of Agriculture, Morogoro, Tanzania
- SACIDS African Centre of Excellence for Infectious Diseases of Humans and Animals, Sokoine University of Agriculture, Morogoro, Tanzania
- Malawi-Liverpool-Wellcome Trust Clinical Research Programme, Blantyre, Malawi
| | - Gerald Misinzo
- Department of Veterinary Microbiology, Parasitology and Biotechnology, College of Veterinary Medicine and Biomedical Sciences, Sokoine University of Agriculture, Morogoro, Tanzania
- SACIDS African Centre of Excellence for Infectious Diseases of Humans and Animals, Sokoine University of Agriculture, Morogoro, Tanzania
| | - Dylo Foster Pemba
- Vector Borne Disease Laboratory, University of Malawi, Zomba, Malawi
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Rao S, Abeyratne E, Freitas JR, Yang C, Tharmarajah K, Mostafavi H, Liu X, Zaman M, Mahalingam S, Zaid A, Taylor A. A booster regime of liposome-delivered live-attenuated CHIKV vaccine RNA genome protects against chikungunya virus disease in mice. Vaccine 2023; 41:3976-3988. [PMID: 37230889 DOI: 10.1016/j.vaccine.2023.05.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 05/11/2023] [Accepted: 05/12/2023] [Indexed: 05/27/2023]
Abstract
Mosquito-transmitted chikungunya virus (CHIKV) is the causal pathogen of CHIKV disease and is responsible for global epidemics of arthritic disease. CHIKV infection can lead to severe chronic and debilitating arthralgia, significantly impacting patient mobility and quality of life. Our previous studies have shown a live-attenuated CHIKV vaccine candidate, CHIKV-NoLS, to be effective in protecting against CHIKV disease in mice vaccinated with one dose. Further studies have demonstrated the value of a liposome RNA delivery system to deliver the RNA genome of CHIKV-NoLS directly in vivo, promoting de novo production of live-attenuated vaccine particles in vaccinated hosts. This system, designed to bypass live-attenuated vaccine production bottlenecks, uses CAF01 liposomes. However, one dose of CHIKV-NoLS CAF01 failed to provide systemic protection against CHIKV challenge in mice, with low levels of CHIKV-specific antibodies. Here we describe CHIKV-NoLS CAF01 booster vaccination regimes designed to increase vaccine efficacy. C57BL/6 mice were vaccinated with three doses of CHIKV-NoLS CAF01 either intramuscularly or subcutaneously. CHIKV-NoLS CAF01 vaccinated mice developed a systemic immune response against CHIKV that shared similarity to vaccination with CHIKV-NoLS, including high levels of CHIKV-specific neutralising antibodies in subcutaneously inoculated mice. CHIKV-NoLS CAF01 vaccinated mice were protected against disease signs and musculoskeletal inflammation when challenged with CHIKV. Mice given one dose of live-attenuated CHIKV-NoLS developed a long lasting protective immune response for up to 71 days. A clinically relevant CHIKV-NoLS CAF01 booster regime can overcome the challenges faced by our previous one dose strategy and provide systemic protection against CHIKV disease.
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Affiliation(s)
- Shambhavi Rao
- The Emerging Viruses, Inflammation and Therapeutics Group, Menzies Health Institute Queensland, Griffith University, Gold Coast, Southport, QLD 4215, Australia; School of Pharmacy and Medical Sciences, Griffith University, Gold Coast, Southport, 4215 Queensland, Australia; Global Virus Network (GVN) Centre for Excellence in Arboviruses, Australia
| | - Eranga Abeyratne
- The Emerging Viruses, Inflammation and Therapeutics Group, Menzies Health Institute Queensland, Griffith University, Gold Coast, Southport, QLD 4215, Australia; School of Pharmacy and Medical Sciences, Griffith University, Gold Coast, Southport, 4215 Queensland, Australia; Global Virus Network (GVN) Centre for Excellence in Arboviruses, Australia
| | - Joseph R Freitas
- The Emerging Viruses, Inflammation and Therapeutics Group, Menzies Health Institute Queensland, Griffith University, Gold Coast, Southport, QLD 4215, Australia; School of Pharmacy and Medical Sciences, Griffith University, Gold Coast, Southport, 4215 Queensland, Australia; Global Virus Network (GVN) Centre for Excellence in Arboviruses, Australia
| | - Chenying Yang
- The Emerging Viruses, Inflammation and Therapeutics Group, Menzies Health Institute Queensland, Griffith University, Gold Coast, Southport, QLD 4215, Australia; School of Pharmacy and Medical Sciences, Griffith University, Gold Coast, Southport, 4215 Queensland, Australia; Global Virus Network (GVN) Centre for Excellence in Arboviruses, Australia
| | - Kothila Tharmarajah
- The Emerging Viruses, Inflammation and Therapeutics Group, Menzies Health Institute Queensland, Griffith University, Gold Coast, Southport, QLD 4215, Australia; School of Pharmacy and Medical Sciences, Griffith University, Gold Coast, Southport, 4215 Queensland, Australia; Global Virus Network (GVN) Centre for Excellence in Arboviruses, Australia
| | - Helen Mostafavi
- The Emerging Viruses, Inflammation and Therapeutics Group, Menzies Health Institute Queensland, Griffith University, Gold Coast, Southport, QLD 4215, Australia; School of Pharmacy and Medical Sciences, Griffith University, Gold Coast, Southport, 4215 Queensland, Australia; Global Virus Network (GVN) Centre for Excellence in Arboviruses, Australia
| | - Xiang Liu
- The Emerging Viruses, Inflammation and Therapeutics Group, Menzies Health Institute Queensland, Griffith University, Gold Coast, Southport, QLD 4215, Australia; School of Pharmacy and Medical Sciences, Griffith University, Gold Coast, Southport, 4215 Queensland, Australia; Global Virus Network (GVN) Centre for Excellence in Arboviruses, Australia
| | - Mehfuz Zaman
- Institute for Glycomics, Griffith University, Gold Coast Campus, Southport, 4222 Queensland, Australia
| | - Suresh Mahalingam
- The Emerging Viruses, Inflammation and Therapeutics Group, Menzies Health Institute Queensland, Griffith University, Gold Coast, Southport, QLD 4215, Australia; School of Pharmacy and Medical Sciences, Griffith University, Gold Coast, Southport, 4215 Queensland, Australia; Global Virus Network (GVN) Centre for Excellence in Arboviruses, Australia
| | - Ali Zaid
- The Emerging Viruses, Inflammation and Therapeutics Group, Menzies Health Institute Queensland, Griffith University, Gold Coast, Southport, QLD 4215, Australia; School of Pharmacy and Medical Sciences, Griffith University, Gold Coast, Southport, 4215 Queensland, Australia; Global Virus Network (GVN) Centre for Excellence in Arboviruses, Australia
| | - Adam Taylor
- The Emerging Viruses, Inflammation and Therapeutics Group, Menzies Health Institute Queensland, Griffith University, Gold Coast, Southport, QLD 4215, Australia; School of Pharmacy and Medical Sciences, Griffith University, Gold Coast, Southport, 4215 Queensland, Australia; Global Virus Network (GVN) Centre for Excellence in Arboviruses, Australia.
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Bonifay T, Le Turnier P, Epelboin Y, Carvalho L, De Thoisy B, Djossou F, Duchemin JB, Dussart P, Enfissi A, Lavergne A, Mutricy R, Nacher M, Rabier S, Talaga S, Talarmin A, Rousset D, Epelboin L. Review on Main Arboviruses Circulating on French Guiana, An Ultra-Peripheric European Region in South America. Viruses 2023; 15:1268. [PMID: 37376570 PMCID: PMC10302420 DOI: 10.3390/v15061268] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 05/23/2023] [Accepted: 05/25/2023] [Indexed: 06/29/2023] Open
Abstract
French Guiana (FG), a French overseas territory in South America, is susceptible to tropical diseases, including arboviruses. The tropical climate supports the proliferation and establishment of vectors, making it difficult to control transmission. In the last ten years, FG has experienced large outbreaks of imported arboviruses such as Chikungunya and Zika, as well as endemic arboviruses such as dengue, Yellow fever, and Oropouche virus. Epidemiological surveillance is challenging due to the differing distributions and behaviors of vectors. This article aims to summarize the current knowledge of these arboviruses in FG and discuss the challenges of arbovirus emergence and reemergence. Effective control measures are hampered by the nonspecific clinical presentation of these diseases, as well as the Aedes aegypti mosquito's resistance to insecticides. Despite the high seroprevalence of certain viruses, the possibility of new epidemics cannot be ruled out. Therefore, active epidemiological surveillance is needed to identify potential outbreaks, and an adequate sentinel surveillance system and broad virological diagnostic panel are being developed in FG to improve disease management.
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Affiliation(s)
- Timothee Bonifay
- Centre d’Investigation Clinique Antilles-Guyane, Inserm 1424, Centre Hospitalier de Cayenne, 97306 Cayenne, French Guiana, France; (T.B.); (P.L.T.)
| | - Paul Le Turnier
- Centre d’Investigation Clinique Antilles-Guyane, Inserm 1424, Centre Hospitalier de Cayenne, 97306 Cayenne, French Guiana, France; (T.B.); (P.L.T.)
- Infectious Diseases Department, Centre Hospitalier de Cayenne, 97306 Cayenne, French Guiana, France
| | - Yanouk Epelboin
- Microbiota of Insect Vectors Group, Institut Pasteur de la Guyane, 97300 Cayenne, French Guiana, France
| | - Luisiane Carvalho
- Santé Publique France, Cellule Guyane, 97300 Cayenne, French Guiana, France
| | - Benoit De Thoisy
- Laboratoire des Interactions Virus-Hôtes, Institut Pasteur de la Guyane, 97300 Cayenne, French Guiana, France
| | - Félix Djossou
- Infectious Diseases Department, Centre Hospitalier de Cayenne, 97306 Cayenne, French Guiana, France
| | - Jean-Bernard Duchemin
- Unité d’Entomologie Médicale, Institut Pasteur de la Guyane, 97300 Cayenne, French Guiana, France
| | | | - Antoine Enfissi
- Laboratoire de Virologie, Institut Pasteur de la Guyane, 97300 Cayenne, French Guiana, France
| | - Anne Lavergne
- Laboratoire des Interactions Virus-Hôtes, Institut Pasteur de la Guyane, 97300 Cayenne, French Guiana, France
- Laboratoire de Virologie, Institut Pasteur de la Guyane, 97300 Cayenne, French Guiana, France
| | - Rémi Mutricy
- Emergency Department, Centre Hospitalier de Cayenne, 97306 Cayenne, French Guiana, France
| | - Mathieu Nacher
- Centre d’Investigation Clinique Antilles-Guyane, Inserm 1424, Centre Hospitalier de Cayenne, 97306 Cayenne, French Guiana, France; (T.B.); (P.L.T.)
| | - Sébastien Rabier
- Centre d’Investigation Clinique Antilles-Guyane, Inserm 1424, Centre Hospitalier de Cayenne, 97306 Cayenne, French Guiana, France; (T.B.); (P.L.T.)
| | - Stanislas Talaga
- Unité d’Entomologie Médicale, Institut Pasteur de la Guyane, 97300 Cayenne, French Guiana, France
| | - Antoine Talarmin
- Unité Transmission, Réservoir et Diversité des Pathogènes, Institut Pasteur de Guadeloupe, 97139 Les Abymes, Guadeloupe, France
| | - Dominique Rousset
- Laboratoire de Virologie, Institut Pasteur de la Guyane, 97300 Cayenne, French Guiana, France
| | - Loïc Epelboin
- Centre d’Investigation Clinique Antilles-Guyane, Inserm 1424, Centre Hospitalier de Cayenne, 97306 Cayenne, French Guiana, France; (T.B.); (P.L.T.)
- Infectious Diseases Department, Centre Hospitalier de Cayenne, 97306 Cayenne, French Guiana, France
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Shaw CA, August A, Bart S, Booth PGJ, Knightly C, Brasel T, Weaver SC, Zhou H, Panther L. A phase 1, randomized, placebo-controlled, dose-ranging study to evaluate the safety and immunogenicity of an mRNA-based chikungunya virus vaccine in healthy adults. Vaccine 2023:S0264-410X(23)00488-7. [PMID: 37210308 DOI: 10.1016/j.vaccine.2023.04.064] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 03/27/2023] [Accepted: 04/24/2023] [Indexed: 05/22/2023]
Abstract
BACKGROUND Chikungunya, a mosquito-borne viral disease caused by the chikungunya virus (CHIKV), causes a significant global health burden, and there is currently no approved vaccine to prevent chikungunya disease. In this study, the safety and immunogenicity of a CHIKV mRNA vaccine candidate (mRNA-1388) were evaluated in healthy participants in a CHIKV-nonendemic region. METHODS This phase 1, first-in-human, randomized, placebo-controlled, dose-ranging study enrolled healthy adults (ages 18-49 years) between July 2017 and March 2019 in the United States. Participants were randomly assigned (3:1) to receive 2 intramuscular injections 28 days apart with mRNA-1388 in 3 dose-level groups (25 μg, 50 μg, and 100 μg) or placebo and were followed for up to 1 year. Safety (unsolicited adverse events [AEs]), tolerability (local and systemic reactogenicity; solicited AEs), and immunogenicity (geometric mean titers [GMTs] of CHIKV neutralizing and binding antibodies) of mRNA-1388 versus placebo were evaluated. RESULTS Sixty participants were randomized and received ≥ 1 vaccination; 54 (90 %) completed the study. mRNA-1388 demonstrated favorable safety and reactogenicity profiles at all dose levels. Immunization with mRNA-1388 induced substantial and persistent humoral responses. Dose-dependent increases in neutralizing antibody titers were observed; GMTs (95 % confidence intervals [CIs]) at 28 days after dose 2 were 6.2 (5.1-7.6) for mRNA-1388 25 μg, 53.8 (26.8-108.1) for mRNA-1388 50 μg, 92.8 (43.6-197.6) for mRNA-1388 100 μg, and 5.0 (not estimable) for placebo. Persistent humoral responses were observed up to 1 year after vaccination and remained higher than placebo in the 2 higher mRNA-1388 dose groups. The development of CHIKV-binding antibodies followed a similar trend as that observed with neutralizing antibodies. CONCLUSIONS mRNA-1388, the first mRNA vaccine against CHIKV, was well tolerated and elicited substantial and long-lasting neutralizing antibody responses in healthy adult participants in a nonendemic region. CLINICALTRIALS gov: NCT03325075.
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Affiliation(s)
| | | | | | | | | | - Trevor Brasel
- University of Texas Medical Branch, Galveston, TX, USA
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Huang Z, Zhang Y, Li H, Zhu J, Song W, Chen K, Zhang Y, Lou Y. Vaccine development for mosquito-borne viral diseases. Front Immunol 2023; 14:1161149. [PMID: 37251387 PMCID: PMC10213220 DOI: 10.3389/fimmu.2023.1161149] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 04/13/2023] [Indexed: 05/31/2023] Open
Abstract
Mosquito-borne viral diseases are a group of viral illnesses that are predominantly transmitted by mosquitoes, including viruses from the Togaviridae and Flaviviridae families. In recent years, outbreaks caused by Dengue and Zika viruses from the Flaviviridae family, and Chikungunya virus from the Togaviridae family, have raised significant concerns for public health. However, there are currently no safe and effective vaccines available for these viruses, except for CYD-TDV, which has been licensed for Dengue virus. Efforts to control the transmission of COVID-19, such as home quarantine and travel restrictions, have somewhat limited the spread of mosquito-borne viral diseases. Several vaccine platforms, including inactivated vaccines, viral-vector vaccines, live attenuated vaccines, protein vaccines, and nucleic acid vaccines, are being developed to combat these viruses. This review analyzes the various vaccine platforms against Dengue, Zika, and Chikungunya viruses and provides valuable insights for responding to potential outbreaks.
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Affiliation(s)
- Zhiwei Huang
- School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Yuxuan Zhang
- Shulan International Medical College, Zhejiang Shuren University, Hangzhou, China
| | - Hongyu Li
- Shulan International Medical College, Zhejiang Shuren University, Hangzhou, China
| | - Jiajie Zhu
- Shulan International Medical College, Zhejiang Shuren University, Hangzhou, China
| | - Wanchen Song
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou, China
| | - Keda Chen
- Shulan International Medical College, Zhejiang Shuren University, Hangzhou, China
| | - Yanjun Zhang
- Department of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Yongliang Lou
- School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
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40
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de Lima Cavalcanti TYV, Azevedo EDAN, Lima MC, Saraiva KLA, Franca RFO. Chikungunya virus infection induces ultrastructural changes and impaired neuronal differentiation of human neurospheres. Front Microbiol 2023; 14:1152480. [PMID: 37250062 PMCID: PMC10213924 DOI: 10.3389/fmicb.2023.1152480] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 04/25/2023] [Indexed: 05/31/2023] Open
Abstract
Chikungunya virus (CHIKV) is an arthropod-borne virus recently associated with large outbreaks in many parts of the world. Infection is typically manifested as a febrile and self-limited illness, characterized by joint pain and myalgia, albeit severe neurological manifestations are also reported. Although CHIKV is not recognized as a truly neurotropic virus, neurons, astrocytes, and oligodendrocytes are susceptible to infection in vitro. Here we employed a model of 3D cell culture to obtain neurospheres from ATRA/BNDF differentiated human neuroblastoma cells. We demonstrate that CHIKV is able to establish a productive infection, resulting in ultrastructural changes in cell morphology and impaired neuronal differentiation. Ultrastructural analysis of neurospheres infected with CHIKV during neuronal differentiation revealed diminished neuron dendrite formation, accumulation of viral particles associated with the plasma membrane, numerous cell vacuoles, and swollen mitochondria. Apoptotic cells were significantly increased at 72 h post-infection. Compared to Zika virus, a well-characterized neurotropic arbovirus, CHIKV infection resulted in a more discrete, albeit detectable upregulation of IL-6 levels. Finally, we found that CHIKV infection resulted in an altered profile expression, mainly downregulation, of a group of transcription factors named Hox genes. Altogether our findings highlight important features of CHIKV in the CNS, as well as the feasibility of neurospheres as robust experimental models that can support further studies for novel pharmacological interventions.
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Affiliation(s)
| | - Elisa de Almeida Neves Azevedo
- Department of Virology and Experimental Therapy, Instituto Aggeu Magalhães, Fundação Oswaldo Cruz/Fiocruz, Recife, Brazil
| | - Morganna Costa Lima
- Department of Virology and Experimental Therapy, Instituto Aggeu Magalhães, Fundação Oswaldo Cruz/Fiocruz, Recife, Brazil
| | | | - Rafael Freitas Oliveira Franca
- Department of Virology and Experimental Therapy, Instituto Aggeu Magalhães, Fundação Oswaldo Cruz/Fiocruz, Recife, Brazil
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41
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Sethi KS, Aryan AK, Ganeshan PK. Magnetic Resonance Imaging Brain Findings in Chikungunya Virus (CHIKV) Infection with Neurological Complication during Epidemic Outbreak. Neurol India 2023; 71:467-470. [PMID: 37322742 DOI: 10.4103/0028-3886.378660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Background and Objective The Chikungunya virus is an alphavirus RNA of the family Togaviridae transmitted by the Aedes mosquito. We aim to report magnetic resonance imaging (MRI) brain findings for neurological complications at our institute during epidemic outbreak. Materials and Methods A total of 43 seropositive cases of Chikungunya infection underwent MRI brain. Results Out of 43 patients, 27 (63%) had discrete and confluent supra-tentorial T2-weighted (T2W) and fluid-attenuated inversion recovery (FLAIR) hyper-intense white matter foci. A total of 14 patients (33%) showed multiple foci/areas of diffusion restriction, and four of these patients had infra-tentorial T2 & FLAIR hyper-intense foci with restricted diffusion. In three pediatric age group patients including two neonates, the pattern of involvement was diffuse white matter changes with restricted diffusion. In 30% cases, MRI was normal. Conclusions Detection of focal or confluent white matter hyper-intense foci with restricted diffusion on MRI in patients presenting with fever and neurological symptoms has potential to conclude the diagnosis of Chikungunya encephalitis, especially in epidemic settings.
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Affiliation(s)
- Kanika Sekhri Sethi
- Department of Radiology, BL Kapur Superspeciality Hospital, Pusa Road, New Delhi, India
| | - Abhay Kumar Aryan
- Department of Radiology, BL Kapur Superspeciality Hospital, Pusa Road, New Delhi, India
| | - Prem Kumar Ganeshan
- Department of Radiology, BL Kapur Superspeciality Hospital, Pusa Road, New Delhi, India
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Garcia G, Irudayam JI, Jeyachandran AV, Dubey S, Chang C, Castillo Cario S, Price N, Arumugam S, Marquez AL, Shah A, Fanaei A, Chakravarty N, Joshi S, Sinha S, French SW, Parcells MS, Ramaiah A, Arumugaswami V. Innate immune pathway modulator screen identifies STING pathway activation as a strategy to inhibit multiple families of arbo and respiratory viruses. Cell Rep Med 2023; 4:101024. [PMID: 37119814 DOI: 10.1016/j.xcrm.2023.101024] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 03/17/2023] [Accepted: 04/07/2023] [Indexed: 05/01/2023]
Abstract
RNA viruses continue to remain a threat for potential pandemics due to their rapid evolution. Potentiating host antiviral pathways to prevent or limit viral infections is a promising strategy. Thus, by testing a library of innate immune agonists targeting pathogen recognition receptors, we observe that Toll-like receptor 3 (TLR3), stimulator of interferon genes (STING), TLR8, and Dectin-1 ligands inhibit arboviruses, Chikungunya virus (CHIKV), West Nile virus, and Zika virus to varying degrees. STING agonists (cAIMP, diABZI, and 2',3'-cGAMP) and Dectin-1 agonist scleroglucan demonstrate the most potent, broad-spectrum antiviral function. Furthermore, STING agonists inhibit severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and enterovirus-D68 (EV-D68) infection in cardiomyocytes. Transcriptome analysis reveals that cAIMP treatment rescue cells from CHIKV-induced dysregulation of cell repair, immune, and metabolic pathways. In addition, cAIMP provides protection against CHIKV in a chronic CHIKV-arthritis mouse model. Our study describes innate immune signaling circuits crucial for RNA virus replication and identifies broad-spectrum antivirals effective against multiple families of pandemic potential RNA viruses.
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Affiliation(s)
- Gustavo Garcia
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Joseph Ignatius Irudayam
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Arjit Vijey Jeyachandran
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Swati Dubey
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Christina Chang
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Sebastian Castillo Cario
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Nate Price
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Sathya Arumugam
- Department of Mathematics, Government College Daman, Daman, Dadra and Nagar Haveli and Daman and Diu 396210, India
| | - Angelica L Marquez
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Aayushi Shah
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Amir Fanaei
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Nikhil Chakravarty
- Department of Epidemiology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Shantanu Joshi
- Department of Neurology, University of California, Los Angeles, Los Angeles, CA, USA; Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, USA
| | - Sanjeev Sinha
- All India Institute of Medical Sciences, New Delhi, India
| | - Samuel W French
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, Los Angeles, CA, USA; Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Mark S Parcells
- Department of Animal and Food Sciences, Department of Biological Sciences, University of Delaware, Newark, DE 19716, USA
| | - Arunachalam Ramaiah
- Tata Institute for Genetics and Society, Center at inStem, Bangalore 560065, India; City of Milwaukee Health Department, Milwaukee, WI 53202, USA.
| | - Vaithilingaraja Arumugaswami
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA, USA; Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA, USA; California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA, USA.
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43
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Dash RN, Prabhudutta M, De S, Swain RP, Moharana AK, Subudhi BB, Chattopadhyay S. Conjugates of ibuprofen inhibit CHIKV infection and inflammation. Mol Divers 2023:10.1007/s11030-023-10654-2. [PMID: 37085737 DOI: 10.1007/s11030-023-10654-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 04/17/2023] [Indexed: 04/23/2023]
Abstract
Chikungunya virus infection has become a global health concern because of its high rates of morbidity and mortality in patients with preexisting conditions. Inflammation and arthritis are the major symptoms of CHIKV that persist even after clearance of CHIKV. To develop an antiviral that can reduce infection and manage inflammation independent of the CHIKV infection, ibuprofen (IBU) conjugates with sulfonamide and thiosemicarbazide were synthesized. The conjugates, IBU-SULFA, IBU-ISS and IBU-IBT significantly inhibited CHIKV infection in vitro with a selectivity index (CC50/IC50) of > 11.9, > 25.1 and > 21, respectively. The reduction in infection was attributed to the interference of the conjugates in the early stages of CHIKV life cycle. With no acute oral toxicity, these compounds significantly reduced inflammation and arthritis in rats. Unlike IBU, the conjugates were not ulcerogenic. In conclusion, the conjugation imparted anti-CHIKV properties while retaining the anti-inflammatory properties of IBU. These findings can encourage further validation and research to develop an antiviral for CHIKV to manage both infection and arthritis.
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Affiliation(s)
- Rudra N Dash
- Drug Development and Analysis Laboratory, School of Pharmaceutical Sciences, Siksha O Anusandhan Deemed to be University, Kalinga Nagar, Bhubaneswar, 751003, Odisha, India
| | - Mamidi Prabhudutta
- Infectious Disease Biology Lab, Institute of Life Sciences, Bhubaneswar, 751023, Odisha, India
- Department of Microbiology (VRDL), AIIMS, Sijua, Patrapada, Bhubaneswar, 751019, Odisha, India
| | - Saikat De
- Infectious Disease Biology Lab, Institute of Life Sciences, Bhubaneswar, 751023, Odisha, India
- Regional Centre for Biotechnology, Faridabad, India
| | - Ranjit P Swain
- Drug Development and Analysis Laboratory, School of Pharmaceutical Sciences, Siksha O Anusandhan Deemed to be University, Kalinga Nagar, Bhubaneswar, 751003, Odisha, India
| | - Alok K Moharana
- Drug Development and Analysis Laboratory, School of Pharmaceutical Sciences, Siksha O Anusandhan Deemed to be University, Kalinga Nagar, Bhubaneswar, 751003, Odisha, India
| | - Bharat B Subudhi
- Drug Development and Analysis Laboratory, School of Pharmaceutical Sciences, Siksha O Anusandhan Deemed to be University, Kalinga Nagar, Bhubaneswar, 751003, Odisha, India.
| | - Soma Chattopadhyay
- Infectious Disease Biology Lab, Institute of Life Sciences, Bhubaneswar, 751023, Odisha, India.
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44
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Singh TI, Singh P, Karki B. Early Detection of Chikungunya Virus Utilizing the Surface Plasmon Resonance Comprising a Silver-Silicon-PtSe 2 Multilayer Structure. Plasmonics 2023; 18:1173-1180. [PMID: 37229147 PMCID: PMC10113725 DOI: 10.1007/s11468-023-01840-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 04/03/2023] [Indexed: 05/27/2023]
Abstract
The sensing performance parameters of the SPR sensors are sensitivity, detection accuracy, the figure of merit (FOM), and full-width half maximum (FWHM), and it has been discussed with refractive indexes of analyte 1.33, 1.35, 1.38, and 1.39. In this, we proposed a multilayer structure comprising nanofilms of Ag, Silicon, and PtSe2 for the early diagnosis of chikungunya virus. The suggested sensor structure consists of a BK7 (borosilicate crown) coupling prism over which the nanofilm of silver metal is present. The layer thicknesses and the number of silicon and PtSe2 sheets are optimized for high performance. At the operating wavelength of 633 nm, a Kretschmann-based SPR sensor has been proposed, which gives the highest sensitivity of 287.3 Deg/RIU. The principle of attenuated total reflection has been employed for the performance analysis of the sensor.
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Affiliation(s)
| | - Pawan Singh
- Department of Physics, Himalayiya University, Doiwala, Dehradun, Uttarakhand 248140 India
| | - Bhishma Karki
- Department of Physics, Tri-Chandra Multiple Campus, Tribhuvan University, Kathmandu, 44600 Nepal
- National Research Council Nepal, New Baneshwor-10, Kathmandu, 44600 Nepal
- Department of Physics and Research Centre, Tuljaram Chaturchand College Baramati, Pune, 413102 India
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45
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Hiscott J, Brandt CR. Editorial: Insights in virus and host: 2021. Front Cell Infect Microbiol 2023; 13:1190338. [PMID: 37113129 PMCID: PMC10126835 DOI: 10.3389/fcimb.2023.1190338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 03/30/2023] [Indexed: 04/29/2023] Open
Affiliation(s)
- John Hiscott
- Laboratorio Pasteur, Istituto Pasteur-Fondazione Cenci Bolognetti, Roma, Italy
| | - Curtis R. Brandt
- Department of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
- Department of Medical Microbiology and Immunology, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
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46
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Henderson Sousa F, Ghaisani Komarudin A, Findlay-Greene F, Bowolaksono A, Sasmono RT, Stevens C, Barlow PG. Evolution and immunopathology of chikungunya virus informs therapeutic development. Dis Model Mech 2023; 16:dmm049804. [PMID: 37014125 PMCID: PMC10110403 DOI: 10.1242/dmm.049804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
Abstract
Chikungunya virus (CHIKV), a mosquito-borne alphavirus, is an emerging global threat identified in more than 60 countries across continents. The risk of CHIKV transmission is rising due to increased global interactions, year-round presence of mosquito vectors, and the ability of CHIKV to produce high host viral loads and undergo mutation. Although CHIKV disease is rarely fatal, it can progress to a chronic stage, during which patients experience severe debilitating arthritis that can last from several weeks to months or years. At present, there are no licensed vaccines or antiviral drugs for CHIKV disease, and treatment is primarily symptomatic. This Review provides an overview of CHIKV pathogenesis and explores the available therapeutic options and the most recent advances in novel therapeutic strategies against CHIKV infections.
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Affiliation(s)
- Filipa Henderson Sousa
- School of Applied Sciences, Edinburgh Napier University, Sighthill Campus, Edinburgh EH11 4BN, UK
- Centre for Discovery Brain Sciences and UK Dementia Research Institute, The University of Edinburgh, Edinburgh EH16 4SB, UK
| | - Amalina Ghaisani Komarudin
- Eijkman Research Center for Molecular Biology, National Research and Innovation Agency, Cibinong Science Center, Cibinong, Kabupaten Bogor 16911, Indonesia
| | - Fern Findlay-Greene
- School of Applied Sciences, Edinburgh Napier University, Sighthill Campus, Edinburgh EH11 4BN, UK
| | - Anom Bowolaksono
- Cellular and Molecular Mechanisms in Biological System (CEMBIOS) Research Group, Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok 16424, Indonesia
| | - R. Tedjo Sasmono
- Eijkman Research Center for Molecular Biology, National Research and Innovation Agency, Cibinong Science Center, Cibinong, Kabupaten Bogor 16911, Indonesia
| | - Craig Stevens
- School of Applied Sciences, Edinburgh Napier University, Sighthill Campus, Edinburgh EH11 4BN, UK
| | - Peter G. Barlow
- School of Applied Sciences, Edinburgh Napier University, Sighthill Campus, Edinburgh EH11 4BN, UK
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47
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Javelle E, de Laval F, Durand GA, Dia A, Ficko C, Bousquet A, Delaune D, Briolant S, Mérens A, Brossier C, Pommier H, Gala F, Courtiol A, Savreux Q, Sicard S, Sanchez JP, Robin F, Simon F, de Lamballerie X, Grard G, Leparc-Goffart I, de Santi VP. Chikungunya Outbreak in Country with Multiple Vectorborne Diseases, Djibouti, 2019-2020. Emerg Infect Dis 2023; 29:826-830. [PMID: 36958020 PMCID: PMC10045711 DOI: 10.3201/eid2904.221850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/25/2023] Open
Abstract
During 2019-2020, a chikungunya outbreak occurred in Djibouti City, Djibouti, while dengue virus and malaria parasites were cocirculating. We used blotting paper to detect arbovirus emergence and confirm that it is a robust method for detecting and monitoring arbovirus outbreaks remotely.
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48
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Khan A, Bisanzio D, Mutuku F, Ndenga B, Grossi-Soyster EN, Jembe Z, Maina PW, Chebii PK, Ronga CO, Okuta V, LaBeaud AD. Spatiotemporal overlapping of dengue, chikungunya, and malaria infections in children in Kenya. BMC Infect Dis 2023; 23:183. [PMID: 36991340 PMCID: PMC10053720 DOI: 10.1186/s12879-023-08157-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 03/14/2023] [Indexed: 03/31/2023] Open
Abstract
Malaria, chikungunya virus (CHIKV), and dengue virus (DENV) are endemic causes of fever among children in Kenya. The risks of infection are multifactorial and may be influenced by built and social environments. The high resolution overlapping of these diseases and factors affecting their spatial heterogeneity has not been investigated in Kenya. From 2014-2018, we prospectively followed a cohort of children from four communities in both coastal and western Kenya. Overall, 9.8% were CHIKV seropositive, 5.5% were DENV seropositive, and 39.1% were malaria positive (3521 children tested). The spatial analysis identified hot-spots for all three diseases in each site and in multiple years. The results of the model showed that the risk of exposure was linked to demographics with common factors for the three diseases including the presence of litter, crowded households, and higher wealth in these communities. These insights are of high importance to improve surveillance and targeted control of mosquito-borne diseases in Kenya.
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Affiliation(s)
- Aslam Khan
- Stanford University School of Medicine, Stanford, CA, USA.
- Center for Academic Medicine, 453 Quarry Road, Palo Alto, CA, 94304, USA.
| | | | | | | | | | - Zainab Jembe
- Msambweni County Referral hospital, Msambweni, Kenya
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49
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Mwakutwaa AS, Ngugi HN, Ndenga BA, Krystosik A, Ngari M, Abubakar LU, Yonge S, Kitron U, LaBeaud AD, Mutuku FM. Pupal productivity of larval habitats of Aedes aegypti in Msambweni, Kwale County, Kenya. Parasitol Res 2023; 122:801-814. [PMID: 36683088 PMCID: PMC9988718 DOI: 10.1007/s00436-022-07777-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 12/30/2022] [Indexed: 01/24/2023]
Abstract
Aedes aegypti is an important vector of several arboviruses including dengue and chikungunya viruses. Accurate identification of larval habitats of Ae. aegypti is considered an essential step in targeted control. This study determined Ae. aegypti productivity in selected larval habitats in Msambweni, Kwale County, Kenya. Three sequential larval habitat surveys were conducted. The first survey was habitat census (baseline) through which 83 representative larval habitats were identified and selected. The second and third surveys involved estimating daily productivity of the 83 selected larval habitats for 30 consecutive days during a wet and a dry season, respectively. Of 664 larval habitats examined at baseline, 144 larval habitats (21.7%) were found to be infested with Ae. aegypti larvae. At baseline, majority (71%) of the pupae were collected from two (2/6) larval habitat types, tires and pots. Multivariate analysis identified habitat type and the habitat being movable as the predictors for pupal abundance. During the 30-day daily pupal production surveys, only a few of the habitats harbored pupae persistently. Pupae were found in 28% and 12% of the larval habitats during the wet and dry seasons, respectively. In the wet season, drums, tires, and pots were identified as the key habitat types accounting for 85% of all pupae sampled. Three habitats (all drums) accounted for 80% of all the pupae collected in the dry season. Predictors for pupal productivity in the wet season were habitat type, place (whether the habitat is located at the back or front of the house), habitat purpose (use of the water in the habitat), and source of water. Although the multivariate model for habitat type did not converge, habitat type and habitat size were the only significant predictors during the dry season. Drums, pots, and tires were sources of more than 85% of Ae. aegypti pupae, reinforcing the "key container concept." Targeting these three types of habitats makes epidemiological sense, especially during the dry season.
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Affiliation(s)
- Alawih S. Mwakutwaa
- Department of Environment and Health Sciences, Technical University of Mombasa, Mombasa, Kenya
| | - Harun N. Ngugi
- Department of Biological Sciences, Chuka University, Chuka, Kenya
| | - Bryson A. Ndenga
- Centre for Global Health Research, Kenya Medical Research Institute, Kisumu, Kenya
| | - Amy Krystosik
- Department of Pediatrics, Division of Infectious Diseases, Stanford University School of Medicine, Stanford, CA USA
| | - Moses Ngari
- KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
| | - Laila U. Abubakar
- Department of Pure and Applied Sciences, Technical University of Mombasa, Mombasa, Kenya
| | - Shadrack Yonge
- Department of Environment and Health Sciences, Technical University of Mombasa, Mombasa, Kenya
| | - Uriel Kitron
- Department of Environmental Sciences, Emory University, Atlanta, GA USA
| | - A. Desiree LaBeaud
- Department of Pediatrics, Division of Infectious Diseases, Stanford University School of Medicine, Stanford, CA USA
| | - Francis M. Mutuku
- Department of Environment and Health Sciences, Technical University of Mombasa, Mombasa, Kenya
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50
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Lin HC, Chiao DJ, Shu PY, Lin HT, Hsiung CC, Lin CC, Kuo SC. Development of a Novel Chikungunya Virus-Like Replicon Particle for Rapid Quantification and Screening of Neutralizing Antibodies and Antivirals. Microbiol Spectr 2023; 11:e0485422. [PMID: 36856407 PMCID: PMC10101068 DOI: 10.1128/spectrum.04854-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 02/09/2023] [Indexed: 03/02/2023] Open
Abstract
Chikungunya fever is a mosquito-transmitted infectious disease that induces rash, myalgia, and persistent incapacitating arthralgia. At present, no vaccines or antiviral therapies specific to Chikungunya virus (CHIKV) infection have been approved, and research is currently restricted to biosafety level 3 containment. CHIKV-like replicon particles (VRPs) are single-cycle infectious particles containing viral structure proteins, as well as a defective genome to provide a safe surrogate for living CHIKV to facilitate the testing of vaccines and antivirals. However, inefficient RNA transfection and the potential emergence of the competent virus through recombination in mammalian cells limit VRP usability. This study describes a transfection-free system for the safe packaging of CHIK VRP with all necessary components via transduction of mosquito cell lines using a single baculovirus vector. We observed the release of substantial quantities of mosquito cell-derived CHIK VRP (mos-CHIK VRP) from baculovirus-transduced mosquito cell lines. The VRPs were shown to recapitulate viral replication and subgenomic dual reporter expression (enhanced green fluorescent protein [eGFP] and luciferase) in infected host cells. Interestingly, the rapid expression kinetics of the VRP-expressing luciferase reporter (6 h) makes it possible to use mos-CHIK VRPs for the rapid quantification of VRP infection. Treatment with antivirals (suramin or 6-azauridine) or neutralizing antibodies (monoclonal antibodies [MAbs] or patient sera) was shown to inhibit mos-CHIK VRP infection in a dose-dependent manner. Ease of manufacture, safety, scalability, and high throughput make mos-CHIK VRPs a highly valuable vehicle for the study of CHIKV biology, the detection of neutralizing (NT) antibody activity, and the screening of antivirals against CHIKV. IMPORTANCE This study proposes a transfection-free system that enables the safe packaging of CHIK VRPs with all necessary components via baculovirus transduction. Those mosquito cell-derived CHIK VRP (mos-CHIK VRPs) were shown to recapitulate viral replication and subgenomic dual reporter (enhanced green fluorescent protein [eGFP] and luciferase) expression in infected host cells. Rapid expression kinetics of the VRP-expressing luciferase reporter (within hours) opens the door to using mos-CHIK VRPs for the rapid quantification of neutralizing antibody and antiviral activity against CHIKV. To the best of our knowledge, this is the first study to report a mosquito cell-derived alphavirus VRP system. Note that this system could also be applied to other arboviruses to model the earliest event in arboviral infection in vertebrates.
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Affiliation(s)
- Hui-Chung Lin
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan
- Institute of Preventive Medicine, National Defense Medical Center, Taipei, Taiwan
| | - Der-Jiang Chiao
- Institute of Preventive Medicine, National Defense Medical Center, Taipei, Taiwan
| | - Pei-Yun Shu
- Center for Diagnostics and Vaccine Development, Centers for Disease Control, Ministry of Health and Welfare, Taipei, Taiwan
| | - Hui-Tsu Lin
- Institute of Preventive Medicine, National Defense Medical Center, Taipei, Taiwan
| | - Chia-Chu Hsiung
- Institute of Preventive Medicine, National Defense Medical Center, Taipei, Taiwan
| | - Chang-Chi Lin
- Institute of Preventive Medicine, National Defense Medical Center, Taipei, Taiwan
- Department and Graduate Institute of Microbiology and Immunology, National Defense Medical Center, Taipei, Taiwan
| | - Szu-Cheng Kuo
- Institute of Preventive Medicine, National Defense Medical Center, Taipei, Taiwan
- Department and Graduate Institute of Microbiology and Immunology, National Defense Medical Center, Taipei, Taiwan
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