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Perez LJ, Yamaguchi J, Weiss S, Carlos C, Meyer TV, Rodgers MA, Phoompoung P, Suputtamongkol Y, Cloherty GA, Berg MG. Climate, inter-serotype competition and arboviral interactions shape dengue dynamics in Thailand. Commun Biol 2025; 8:601. [PMID: 40216923 PMCID: PMC11992266 DOI: 10.1038/s42003-025-07999-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2024] [Accepted: 03/25/2025] [Indexed: 04/14/2025] Open
Abstract
The incidence and global spread of dengue are reaching alarming levels. Thailand represents a critical disease epicenter and demands an understanding of the environmental and evolutionary pressures that sustain DENV transmission. Unlike most affected countries experiencing recurrent outbreaks of the same serotype or replacement of one serotype for another, Thailand is an ecological niche for all four serotypes. Favorable climate and mosquito vector availability maintain a landscape defined by stable, endemic circulation of genotypes, with minimal genetic variation attributed to sporadic, external introductions. This equilibrium is achieved through inter-serotype competition, characterized by reproductive fitness levels that maintain infections (Re>1) and elevated evolutionary rates ( ~ 10-4), which steadily increase the genetic diversity of each serotype. This conclusion is reinforced by the identification of numerous positively selected mutations, skewed in the direction of non-structural proteins conferring replication and transmission advantages versus those present in structural proteins evading neutralizing antibodies. Precipitous drops in DENV cases following outbreaks of Chikungunya suggest that interactions with other arboviruses also impact DENV dynamics through vector competition, replication inhibition or partial cross-protection. Thailand is a major exporter of DENV cases and novel emergent lineages gaining fitness here are likely to spread internationally. Surveillance is therefore paramount to monitor diversification trends and take measures to avoid the establishment of similar sustained, local transmission in other countries.
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Affiliation(s)
- Lester J Perez
- Infectious Disease Research, Abbott Diagnostics Division, Abbott Laboratories, Abbott Park, Lake Bluff, IL, USA.
- Abbott Pandemic Defense Coalition (APDC), Abbott Park, Lake Bluff, IL, USA.
| | - Julie Yamaguchi
- Infectious Disease Research, Abbott Diagnostics Division, Abbott Laboratories, Abbott Park, Lake Bluff, IL, USA
- Abbott Pandemic Defense Coalition (APDC), Abbott Park, Lake Bluff, IL, USA
| | - Sonja Weiss
- Infectious Disease Research, Abbott Diagnostics Division, Abbott Laboratories, Abbott Park, Lake Bluff, IL, USA
- Abbott Pandemic Defense Coalition (APDC), Abbott Park, Lake Bluff, IL, USA
| | - Christiane Carlos
- Infectious Disease Research, Abbott Diagnostics Division, Abbott Laboratories, Abbott Park, Lake Bluff, IL, USA
- Abbott Pandemic Defense Coalition (APDC), Abbott Park, Lake Bluff, IL, USA
| | - Todd V Meyer
- Infectious Disease Research, Abbott Diagnostics Division, Abbott Laboratories, Abbott Park, Lake Bluff, IL, USA
- Abbott Pandemic Defense Coalition (APDC), Abbott Park, Lake Bluff, IL, USA
| | - Mary A Rodgers
- Infectious Disease Research, Abbott Diagnostics Division, Abbott Laboratories, Abbott Park, Lake Bluff, IL, USA
- Abbott Pandemic Defense Coalition (APDC), Abbott Park, Lake Bluff, IL, USA
| | - Pakpoom Phoompoung
- Faculty of Medicine, Siriraj Hospital Mahidol University, Bangkok, Thailand
| | | | - Gavin A Cloherty
- Infectious Disease Research, Abbott Diagnostics Division, Abbott Laboratories, Abbott Park, Lake Bluff, IL, USA
- Abbott Pandemic Defense Coalition (APDC), Abbott Park, Lake Bluff, IL, USA
| | - Michael G Berg
- Infectious Disease Research, Abbott Diagnostics Division, Abbott Laboratories, Abbott Park, Lake Bluff, IL, USA
- Abbott Pandemic Defense Coalition (APDC), Abbott Park, Lake Bluff, IL, USA
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2
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Hertanti NS, Wicaksana AL, Chang PC, Lai FC, Chuang YH. A Concept Analysis of Health-Seeking Behavior Toward Dengue Fever. ANS Adv Nurs Sci 2025:00012272-990000000-00117. [PMID: 40198821 DOI: 10.1097/ans.0000000000000565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/10/2025]
Abstract
Understanding health-seeking behavior toward dengue fever is crucial for early diagnosis and timely treatment to mitigate fatal outcomes. In this paper, a concept analysis based on Walker and Avant's method was performed to define health-seeking behaviors regarding dengue fever. This behavior was defined as a series of actions increasing awareness, promoting preventive measures, facilitating informed health decisions, and ensuring timely access to medical care. This concept analysis clarified how awareness, preventive measures, and access to care influence health-seeking behaviors. Our analysis may help refine health care taxonomies and foster a standardized language for describing health-seeking behaviors in nursing and public health contexts.
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Affiliation(s)
- Nuzul Sri Hertanti
- Author Affiliations: School of Nursing, College of Nursing, Taipei Medical University, Taipei, Taiwan (Ms Hertanti, Mr Wicaksana, Dr Chang, and Dr Chuang); Center for Tropical Medicine, Universitas Gadjah Mada, Yogyakarta, Indonesia (Ms Hertanti); Department of Medical Surgical Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia (Mr Wicaksana); Post-Baccalaureate Program in Nursing, College of Nursing, Taipei Medical University, Taipei, Taiwan (Dr Lai); Department of Nursing, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan (Dr Chuang); and Research Center in Nursing Clinical Practice, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan (Dr Chuang)
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3
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Liu X. Opportunities and challenges of mRNA technologies in development of dengue virus vaccine. Front Immunol 2025; 16:1520968. [PMID: 40109333 PMCID: PMC11919880 DOI: 10.3389/fimmu.2025.1520968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2024] [Accepted: 02/12/2025] [Indexed: 03/22/2025] Open
Abstract
Dengue virus (DENV) is a mosquito-borne virus with a significant human health concern. With 390 million infections annually and 96 million showing clinical symptoms, severe dengue can lead to life-threatening conditions like dengue hemorrhagic fever (DHF) and dengue shock syndrome (DSS). The only FDA-approved vaccine, Dengvaxia, has limitations due to antibody-dependent enhancement (ADE), necessitating careful administration. The recent pre-approval of TAK-003 by WHO in 2024 highlights ongoing efforts to improve vaccine options. This review explores recent advancements in dengue vaccine development, emphasizing potential utility of mRNA-based vaccines. By examining current clinical trial data and innovations, we aim to identify promising strategies to address the limitations of existing vaccines and enhance global dengue prevention efforts.
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Affiliation(s)
- Xiaoyang Liu
- Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, United States
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4
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Gálvez RI, Martínez-Pérez A, Escarrega EA, Singh T, Zambrana JV, Balmaseda Á, Harris E, Weiskopf D. Frequency of dengue virus-specific T cells is related to infection outcome in endemic settings. JCI Insight 2025; 10:e179771. [PMID: 39989460 PMCID: PMC11949061 DOI: 10.1172/jci.insight.179771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 01/13/2025] [Indexed: 02/25/2025] Open
Abstract
Dengue is widespread in tropical and subtropical regions globally and imposes a considerable disease burden. Annually, dengue virus (DENV) causes up to 400 million infections, of which approximately 25% present with clinical manifestations ranging from mild to fatal. Despite its significance as a growing public health concern, developing effective DENV vaccines has been challenging. One reason is the lack of comprehensive understanding of the influence exerted by prior DENV infections and immune responses with cross-reactive properties. To investigate this, we collected samples from a pediatric cohort study in dengue-endemic Managua, Nicaragua. We characterized T cell responses in 71 healthy children who had previously experienced 1 or more natural DENV infections and who, within 1 year after sample collection, had a subsequent DENV infection that was either symptomatic or inapparent. Our study investigated the effect of preexisting DENV-specific T cell responses on clinical outcomes of subsequent DENV infection. We assessed DENV-specific T cell responses using an activation-induced marker assay. Children with only 1 prior DENV infection displayed heterogeneous DENV-specific CD4+ and CD8+ T cell frequencies. In contrast, children with 2 or more prior DENV infections showed significantly higher DENV-specific CD4+ and CD8+ T cell frequencies associated with inapparent rather than symptomatic outcomes in subsequent infection. These findings demonstrate the protective role of DENV-specific T cells against symptomatic DENV infection and advance efforts to identify protective immune correlates against dengue.
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Affiliation(s)
- Rosa Isela Gálvez
- Center for Vaccine Innovation, La Jolla Institute for Immunology, La Jolla, California, USA
| | - Amparo Martínez-Pérez
- Center for Vaccine Innovation, La Jolla Institute for Immunology, La Jolla, California, USA
| | - E. Alexandar Escarrega
- Center for Vaccine Innovation, La Jolla Institute for Immunology, La Jolla, California, USA
| | - Tulika Singh
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, California, USA
| | - José Victor Zambrana
- Sustainable Sciences Institute, Managua, Nicaragua
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, Michigan, USA
| | - Ángel Balmaseda
- Sustainable Sciences Institute, Managua, Nicaragua
- Laboratorio Nacional de Virología, Centro Nacional de Diagnóstico y Referencia, Ministerio de Salud, Managua, Nicaragua
| | - Eva Harris
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, California, USA
| | - Daniela Weiskopf
- Center for Vaccine Innovation, La Jolla Institute for Immunology, La Jolla, California, USA
- Division of Infectious Diseases and Global Public Health, School of Medicine, University of California, San Diego, La Jolla, California, USA
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Hasan MN, Rahman M, Uddin M, Ashrafi SAA, Rahman KM, Paul KK, Sarker MFR, Haque F, Sharma A, Papakonstantinou D, Paudyal P, Asaduzzaman M, Zumla A, Haider N. The 2023 fatal dengue outbreak in Bangladesh highlights a paradigm shift of geographical distribution of cases. Epidemiol Infect 2025; 153:e3. [PMID: 39763239 PMCID: PMC11704938 DOI: 10.1017/s0950268824001791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2024] [Revised: 11/23/2024] [Accepted: 12/02/2024] [Indexed: 01/11/2025] Open
Abstract
In 2023, Bangladesh experienced its largest and deadliest outbreak of the Dengue virus (DENV), reporting the highest-ever recorded annual cases and deaths. Historically, most of the cases were recorded in the capital city, Dhaka. We aimed to characterize the geographical transmission of DENV in Bangladesh. From 1 January-31 December 2023, we extracted and analyzed daily data on dengue cases and deaths from the Management Information System of the Ministry of Health and Family Welfare. We performed a generalized linear mixed model to identify the associations between division-wise daily dengue counts and various geographical and meteorological covariates. The number of dengue cases reported in 2023 was 1.3 times higher than the total number recorded in the past 23 years (321,179 vs. 244,246), with twice as many deaths than the total fatalities recorded over the past 23 years (1705 vs. 849). Of the 1,705 deaths in 2023, 67.4% (n = 1,015) died within one day after hospital admission. The divisions southern to Dhaka had a higher dengue incidence/1000 population (2.30 vs. 0.50, p <0.01) than the northern divisions. Festival-related travel along with meteorological factors and urbanization are likely to have contributed to the shift of dengue from Dhaka to different districts in Bangladesh.
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Affiliation(s)
- Mohammad Nayeem Hasan
- Department of Statistics, Shahjalal University of Science and Technology, Sylhet, Bangladesh
| | - Mahbubur Rahman
- Institute of Epidemiology, Disease Control and Research (IEDCR), Ministry of Health and Family Welfare, Dhaka, Bangladesh
| | | | - Shah Ali Akbar Ashrafi
- Management Information System, Directorate General of Health Service (DGHS), Ministry of Health and Family Welfare, Dhaka, Bangladesh
| | - Kazi Mizanur Rahman
- Faculty of Health Sciences and Medicine, Bond University, Robina, QLD, Australia
| | - Kishor Kumar Paul
- The Kirby Institute, University of New South Wales, Sydney, New South Wales, Australia
| | - Mohammad Ferdous Rahman Sarker
- Institute of Epidemiology, Disease Control and Research (IEDCR), Ministry of Health and Family Welfare, Dhaka, Bangladesh
| | - Farhana Haque
- UK Public Health Rapid Support Team (UK PHRST), Department of Infectious Disease Epidemiology and Dynamics, London School of Hygiene and Tropical Medicine (LSHTM), London, UK
| | | | | | - Priyamvada Paudyal
- Institute for Global Health and Wellbeing, School of Medicine, Keele University, Keele, Staffordshire, UK
| | - Md Asaduzzaman
- Department of Engineering, University of Staffordshire, Stoke-on-Trent, UK
| | - Alimuddin Zumla
- Division of Infection and Immunity, Centre for Clinical Microbiology, University College London and NIHR-BRC, University College London Hospitals, London, UK
| | - Najmul Haider
- School of Life Sciences, Faculty of Natural Sciences, Keele University, Keele, Staffordshire, UK
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Hsiung KC, Chiang HJ, Reinig S, Shih SR. Vaccine Strategies Against RNA Viruses: Current Advances and Future Directions. Vaccines (Basel) 2024; 12:1345. [PMID: 39772007 PMCID: PMC11679499 DOI: 10.3390/vaccines12121345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2024] [Revised: 11/24/2024] [Accepted: 11/25/2024] [Indexed: 01/11/2025] Open
Abstract
The development of vaccines against RNA viruses has undergone a rapid evolution in recent years, particularly driven by the COVID-19 pandemic. This review examines the key roles that RNA viruses, with their high mutation rates and zoonotic potential, play in fostering vaccine innovation. We also discuss both traditional and modern vaccine platforms and the impact of new technologies, such as artificial intelligence, on optimizing immunization strategies. This review evaluates various vaccine platforms, ranging from traditional approaches (inactivated and live-attenuated vaccines) to modern technologies (subunit vaccines, viral and bacterial vectors, nucleic acid vaccines such as mRNA and DNA, and phage-like particle vaccines). To illustrate these platforms' practical applications, we present case studies of vaccines developed for RNA viruses such as SARS-CoV-2, influenza, Zika, and dengue. Additionally, we assess the role of artificial intelligence in predicting viral mutations and enhancing vaccine design. The case studies underscore the successful application of RNA-based vaccines, particularly in the fight against COVID-19, which has saved millions of lives. Current clinical trials for influenza, Zika, and dengue vaccines continue to show promise, highlighting the growing efficacy and adaptability of these platforms. Furthermore, artificial intelligence is driving improvements in vaccine candidate optimization and providing predictive models for viral evolution, enhancing our ability to respond to future outbreaks. Advances in vaccine technology, such as the success of mRNA vaccines against SARS-CoV-2, highlight the potential of nucleic acid platforms in combating RNA viruses. Ongoing trials for influenza, Zika, and dengue demonstrate platform adaptability, while artificial intelligence enhances vaccine design by predicting viral mutations. Integrating these innovations with the One Health approach, which unites human, animal, and environmental health, is essential for strengthening global preparedness against future RNA virus threats.
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Affiliation(s)
- Kuei-Ching Hsiung
- Research Center for Emerging Viral Infections, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan; (K.-C.H.); (H.-J.C.); (S.R.)
| | - Huan-Jung Chiang
- Research Center for Emerging Viral Infections, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan; (K.-C.H.); (H.-J.C.); (S.R.)
- Graduate Institute of Biomedical Science, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
| | - Sebastian Reinig
- Research Center for Emerging Viral Infections, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan; (K.-C.H.); (H.-J.C.); (S.R.)
| | - Shin-Ru Shih
- Research Center for Emerging Viral Infections, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan; (K.-C.H.); (H.-J.C.); (S.R.)
- Department of Laboratory Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
- Department of Medical Biotechnology & Laboratory Science, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
- Research Center for Chinese Herbal Medicine, Research Center for Food & Cosmetic Safety, Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science & Technology, Taoyuan 33303, Taiwan
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Ong LT, Balasubramaniam R. Prevalence and mortality of haemophagocytic lymphohistiocytosis in dengue fever: a systematic review and meta-analysis. Trans R Soc Trop Med Hyg 2024; 118:711-719. [PMID: 38721675 DOI: 10.1093/trstmh/trae032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 03/25/2024] [Accepted: 04/11/2024] [Indexed: 11/05/2024] Open
Abstract
BACKGROUND Haemophagocytic lymphohistiocytosis (HLH) is a rare complication of dengue fever with potentially life-threatening consequences and high mortality. Therefore, this study aims to investigate the prevalence, management and outcome of HLH in dengue fever. METHODS The major electronic databases, including PubMed, ScienceDirect and Ovid SP, were searched from inception until 31 January 2024 to identify relevant studies. Pooled prevalence and mortality were calculated using the random-effects generic inverse variance model with a 95% CI. All the statistical analysis was conducted using R programming. RESULTS A total of nine studies with 157 patients with HLH, 576 patients with severe dengue and 5081 patients with dengue fever were included in this meta-analysis. The prevalence of HLH in severe dengue (22.1%, 95% CI 8.07 to 48.0%) was significantly higher than the prevalence in dengue fever (3.12%, 95% CI 0.37 to 21.9%). The prevalence of HLH in severe dengue was higher in the paediatric population (22.8%, 95% CI 3.9 to 68.4%) compared with the adult population (19.0%, 95% CI 3.0 to 63.9%). The overall mortality rate was 20.2% (95% CI 9.7 to 37.2%). CONCLUSION The prevalence of dengue-associated HLH was low in patients with dengue fever but is significantly higher in patients with severe dengue and a high mortality rate.
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Affiliation(s)
- Leong Tung Ong
- Faculty of Medicine, University of Malaya, Wilayah Persekutuan, Kuala Lumpur 50603, Malaysia
| | - Roovam Balasubramaniam
- Faculty of Medicine, University of Malaya, Wilayah Persekutuan, Kuala Lumpur 50603, Malaysia
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Khazali AS, Hadrawi WH, Ibrahim F, Othman S, Nor Rashid N. Thrombocytopenia in dengue infection: mechanisms and a potential application. Expert Rev Mol Med 2024; 26:e26. [PMID: 39397710 PMCID: PMC11488332 DOI: 10.1017/erm.2024.18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 03/18/2024] [Accepted: 05/30/2024] [Indexed: 10/15/2024]
Abstract
Thrombocytopenia is a common symptom and one of the warning signs of dengue virus (DENV) infection. Platelet depletion is critical as it may lead to other severe dengue symptoms. Understanding the molecular events of this condition during dengue infection is challenging because of the multifaceted factors involved in DENV infection and the dynamics of the disease progression. Platelet levels depend on the balance between platelet production and platelet consumption or clearance. Megakaryopoiesis and thrombopoiesis, two interdependent processes in platelet production, are hampered during dengue infection. Conversely, platelet elimination via platelet activation, apoptosis and clearance processes are elevated. Together, these anomalies contribute to thrombocytopenia in dengue patients. Targeting the molecular events of dengue-mediated thrombocytopenia shows great potential but still requires further investigation. Nonetheless, the application of new knowledge in this field, such as immature platelet fraction analysis, may facilitate physicians in monitoring the progression of the disease.
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Affiliation(s)
- Ahmad Suhail Khazali
- Faculty of Applied Sciences, Universiti Teknologi MARA (UiTM) Cawangan Perlis, Arau, Perlis, Malaysia
| | - Waqiyuddin Hilmi Hadrawi
- Department of Molecular Medicine, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Fatimah Ibrahim
- Department of Biomedical Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur, Malaysia
- Center for Innovation in Medical Engineering (CIME), Faculty of Engineering, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Shatrah Othman
- Department of Molecular Medicine, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Nurshamimi Nor Rashid
- Department of Molecular Medicine, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia
- Center for Innovation in Medical Engineering (CIME), Faculty of Engineering, Universiti Malaya, Kuala Lumpur, Malaysia
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Beyze A, Larroque C, Le Quintrec M. The role of antibody glycosylation in autoimmune and alloimmune kidney diseases. Nat Rev Nephrol 2024; 20:672-689. [PMID: 38961307 DOI: 10.1038/s41581-024-00850-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/20/2024] [Indexed: 07/05/2024]
Abstract
Immunoglobulin glycosylation is a pivotal mechanism that drives the diversification of antibody functions. The composition of the IgG glycome is influenced by environmental factors, genetic traits and inflammatory contexts. Differential IgG glycosylation has been shown to intricately modulate IgG effector functions and has a role in the initiation and progression of various diseases. Analysis of IgG glycosylation is therefore a promising tool for predicting disease severity. Several autoimmune and alloimmune disorders, including critical and potentially life-threatening conditions such as systemic lupus erythematosus, anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis and antibody-mediated kidney graft rejection, are driven by immunoglobulin. In certain IgG-driven kidney diseases, including primary membranous nephropathy, IgA nephropathy and lupus nephritis, particular glycome characteristics can enhance in situ complement activation and the recruitment of innate immune cells, resulting in more severe kidney damage. Hypofucosylation, hypogalactosylation and hyposialylation are the most common IgG glycosylation traits identified in these diseases. Modulating IgG glycosylation could therefore be a promising therapeutic strategy for regulating the immune mechanisms that underlie IgG-driven kidney diseases and potentially reduce the burden of immunosuppressive drugs in affected patients.
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Affiliation(s)
- Anaïs Beyze
- Institute of Regenerative Medicine and Biotherapy, IRMB U1183, Montpellier, France.
- Department of Nephrology, Dialysis and Transplantation, Montpellier University Hospital, Montpellier, France.
- University of Montpellier, Montpellier, France.
| | - Christian Larroque
- Institute of Regenerative Medicine and Biotherapy, IRMB U1183, Montpellier, France
- Department of Nephrology, Dialysis and Transplantation, Montpellier University Hospital, Montpellier, France
- University of Montpellier, Montpellier, France
| | - Moglie Le Quintrec
- Institute of Regenerative Medicine and Biotherapy, IRMB U1183, Montpellier, France.
- Department of Nephrology, Dialysis and Transplantation, Montpellier University Hospital, Montpellier, France.
- University of Montpellier, Montpellier, France.
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Shawon SR, Hamid MKI, Ahmed H, Khan SA, Dewan SMR. Dengue fever in hyperglycemic patients: an emerging public health concern demanding eyes on the effective management strategies. Health Sci Rep 2024; 7:e70144. [PMID: 39421212 PMCID: PMC11483528 DOI: 10.1002/hsr2.70144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Revised: 09/16/2024] [Accepted: 09/26/2024] [Indexed: 10/19/2024] Open
Abstract
Background and aims Hyperglycemia, also known as diabetes, is a metabolic disorder characterized by elevated levels of glucose in the bloodstream. It can lead to the prolonged dysfunction, injury, and deterioration of several organs. In addition, dengue is a viral illness transmitted by mosquitoes that has reached epidemic proportions worldwide. In this article, we focused on the severity of comorbidities, difficulties in managing them, and preventive measures meant to lessen the risks associated with comorbidities in diabetic patients with dengue infection. Methods We explored a number of databases, including PubMed, Scopus, Embase, Web of Science, Google Scholar, and the Cochrane Library, for this review article using various related keywords. Results The findings of this review article indicate that elderly dengue patients with diabetes should be admitted to the hospital for close observation and early management using fluid therapy. An observed association exists between dengue hemorrhagic fever (DHF) and diabetes, indicating a possible consequence in this specific group. Additionally, patients with diabetes who contract dengue show elevated levels of inflammatory markers. Diabetes mellitus deteriorates the immune system, which exacerbates the progression of dengue fever. Cutting-edge technology and scientific research may assist in addressing the challenges that diabetes and dengue viruses pose in low- and middle-income countries. Implementing innovative diabetic care management is essential to ensuring consistency of care, improving a healthy lifestyle, and lowering patient risk factors and comorbidities. Conclusion Dengue fever has spread to epidemic levels throughout the world. Inflammatory markers increase and the prevalence of DHF is greater in diabetes individuals with dengue infection. Given the continued growth of dengue in Asian nations, it is imperative that we concentrate our efforts and resources on providing more precise and effective treatment for this emerging issue.
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Affiliation(s)
- Shandipon Roy Shawon
- Department of Pharmacy, School of MedicineUniversity of Asia PacificDhakaBangladesh
| | | | - Hossain Ahmed
- Department of Pharmacy, School of MedicineUniversity of Asia PacificDhakaBangladesh
| | - Sakif Ahamed Khan
- Department of Pharmacy, School of MedicineUniversity of Asia PacificDhakaBangladesh
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11
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Steindorf V, Srivastav AK, Stollenwerk N, Kooi BW, Aguiar M. Beyond the biting - limited impact of explicit mosquito dynamics in dengue models. BMC Infect Dis 2024; 24:1090. [PMID: 39354447 PMCID: PMC11446025 DOI: 10.1186/s12879-024-09995-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Accepted: 09/24/2024] [Indexed: 10/03/2024] Open
Abstract
Mathematical models play a crucial role in assisting public health authorities in timely disease control decision-making. For vector-borne diseases, integrating host and vector dynamics into models can be highly complex, particularly due to limited data availability, making system validation challenging. In this study, two compartmental models akin to the SIR type were developed to characterize vector-borne infectious disease dynamics. Motivated by dengue fever epidemiology, the models varied in their treatment of vector dynamics, one with implicit vector dynamics and the other explicitly modeling mosquito-host contact. Both considered temporary immunity after primary infection and disease enhancement in secondary infection, analogous to the temporary cross-immunity and the Antibody-dependent enhancement biological processes observed in dengue epidemiology. Qualitative analysis using bifurcation theory and numerical experiments revealed that the immunity period and disease enhancement outweighed the impact of explicit vector dynamics. Both models demonstrated similar bifurcation structures, indicating that explicit vector dynamics are only justified when assessing the effects of vector control methods. Otherwise, the extra equations are irrelevant, as both systems display similar dynamics scenarios. The study underscores the importance of using simple models for mathematical analysis, initiating crucial discussions among the modeling community in vector-borne diseases.
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Affiliation(s)
| | | | | | - Bob W Kooi
- Basque Center for Applied Mathematics, Bilbao, 48005, Spain
- VU Amsterdam, Amsterdam, 1081HV, The Netherlands
| | - Maíra Aguiar
- Basque Center for Applied Mathematics, Bilbao, 48005, Spain.
- Ikerbasque, Basque Foundation for Science, Bilbao, Spain.
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12
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Panday H, Jha AK, Dwivedi VD. Investigation of small molecules disrupting dengue virus assembly by inhibiting capsid protein and blocking RNA encapsulation. Mol Divers 2024:10.1007/s11030-024-10980-z. [PMID: 39304568 DOI: 10.1007/s11030-024-10980-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2024] [Accepted: 08/26/2024] [Indexed: 09/22/2024]
Abstract
Dengue fever is a significant global public health concern, causing substantial morbidity and mortality worldwide. The disease can manifest in various forms, from mild fever to potentially life-threatening complications. Developing effective treatments remains a critical challenge to healthcare systems. Despite extensive research, no antiviral drugs have been approved for either the prevention or treatment of dengue. Targeting the virus during its early phase of attachment is essential to inhibit viral replication. The capsid protein plays a crucial role in the virus's structural integrity, assembly, and viral genome release. In the present study, we employed a computational approach focused on the capsid protein to identify possible potent inhibitors against the dengue virus from a library of FDA-approved drugs. We employed high-throughput virtual screening on FDA-approved drugs to identify drug molecules that could potentially combat the disease and save both cost and time. The screening process identified four drug molecules (Nordihydroguaiaretic acid, Ifenprodil tartrate, Lathyrol, and Safinamide Mesylate) based on their highest binding affinity and MM/GBSA scores. Among these, Nordihydroguaiaretic acid showed higher binding affinity than the reference molecule with - 11.66 kcal/mol. In contrast, Ifenprodil tartrate and Lathyrol showed similar results to the reference molecule, with binding energies of - 9.42 kcal/mol and - 9.29 kcal/mol, respectively. Following the screening, molecular dynamic simulations were performed to explore the molecular stability and conformational possibilities. The drug molecules were further supported by post-molecular simulation analysis. Furthermore, binding energies were also computed using the MM/GBSA approach, and the free energy landscape was used to calculate the different transition states, revealing that the drugs exhibited significant transition states. Specifically, Nordihydroguaiaretic acid and Ifenprodil tartrate displayed higher flexibility, while Lathyrol and Safinamide Mesylate showed more predictable and consistent protein folding. This significant breakthrough offers new hope against dengue, highlighting the power of computational drug discovery in identifying potent inhibitors and paving the way for novel treatment approaches.
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Affiliation(s)
- Hrithika Panday
- Department of Biotechnology, Sharda University, Greater Noida, UP, India
| | - Abhimanyu Kumar Jha
- Department of Biotechnology, Sharda University, Greater Noida, UP, India.
- Department of Biotechnology, School of Biosciences and Technology, Galgotias University, Greater Noida, India.
| | - Vivek Dhar Dwivedi
- Saveetha Medical College and Hospitals, Center for Global Health Research, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India
- Bioinformatics Research Division, Quanta Calculus, Greater Noida, India
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Sukumaran A, Arun Krishnan R, Kulathil DM, Haritha PR, Varun TN, Edwin BT, Sarath KV, Paul JK, Satheesh Kumar CS, Vasudevan DM. Diagnostic accuracy of Dengue NS1 lateral flow immunoassay in comparison to reverse transcriptase polymerase chain reaction and enzyme linked Immunosorbent Assay. J Virol Methods 2024; 329:114991. [PMID: 38942174 DOI: 10.1016/j.jviromet.2024.114991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 06/20/2024] [Accepted: 06/23/2024] [Indexed: 06/30/2024]
Abstract
The most widely used invitro diagnostic qualitative screening method for dengue virus infection is the lateral flow immunoassay technique. Testing of dengue non-structural antigen NS1 offers specificity in determining the active infection while testing of IgM and IgG helps in differentiating the primary and secondary dengue infections. The ELISA functions as the golden standard for dengue testing and PCR credits for the most accurate determination tool at the genetic level. The RT-PCR endorsed NS1 gene and in ELISA or LFIA NS1 antigen is used as the marker owing to the specificity and lesser chances of mutation effects. This study evaluated the performance of AG-Q Dengue NS1 LFIA kit in comparison with RT-PCR quantification cycle (Cq) Values and ELISA NS1 quantitation. The study also focused on differentiating the samples among dengue serotypes using the RealStar Dengue Type RT-PCR Kit 1.0. Dengue serotype 2 is the prominent viral strain in Kerala region succeeded by serotype 3 and 1 with a prevalence rate of 64 %, 20 % and 6 % respectively. Dengue serotype 4 was not reported during this study period. 10 % co-infection with DENV 1 & DENV 2 was also reported. The AG-Q Dengue NS1 kit stood as efficient in screening by providing positive results with samples having RT-PCR Cq values up to 43 and ELISA NS1 quantification minimum of 14 Panbio units.
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Affiliation(s)
- Ajaikumar Sukumaran
- Agappe Diagnostics Limited, Research & Development Department, Agappe Hills, Pattimattom P O, Ernakulam, Kerala, India.
| | - R Arun Krishnan
- Agappe Diagnostics Limited, Research & Development Department, Agappe Hills, Pattimattom P O, Ernakulam, Kerala, India
| | - Dhanesh Mandam Kulathil
- Agappe Diagnostics Limited, Research & Development Department, Agappe Hills, Pattimattom P O, Ernakulam, Kerala, India
| | - P R Haritha
- Agappe Diagnostics Limited, Research & Development Department, Agappe Hills, Pattimattom P O, Ernakulam, Kerala, India
| | - T N Varun
- Agappe Diagnostics Limited, Research & Development Department, Agappe Hills, Pattimattom P O, Ernakulam, Kerala, India
| | - Biby T Edwin
- Agappe Diagnostics Limited, Research & Development Department, Agappe Hills, Pattimattom P O, Ernakulam, Kerala, India
| | - K V Sarath
- Agappe Diagnostics Limited, Research & Development Department, Agappe Hills, Pattimattom P O, Ernakulam, Kerala, India
| | - Jofy K Paul
- Agappe Diagnostics Limited, Research & Development Department, Agappe Hills, Pattimattom P O, Ernakulam, Kerala, India
| | - C S Satheesh Kumar
- Agappe Diagnostics Limited, Research & Development Department, Agappe Hills, Pattimattom P O, Ernakulam, Kerala, India
| | - D M Vasudevan
- Agappe Diagnostics Limited, Research & Development Department, Agappe Hills, Pattimattom P O, Ernakulam, Kerala, India
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14
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Kayesh MEH, Nazneen H, Kohara M, Tsukiyama-Kohara K. An effective pan-serotype dengue vaccine and enhanced control strategies could help in reducing the severe dengue burden in Bangladesh-A perspective. Front Microbiol 2024; 15:1423044. [PMID: 39228383 PMCID: PMC11368799 DOI: 10.3389/fmicb.2024.1423044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Accepted: 08/06/2024] [Indexed: 09/05/2024] Open
Abstract
Dengue is an important vector-borne disease occurring globally. Dengue virus (DENV) infection can result in a potentially life-threatening disease. To date, no DENV-specific antiviral treatment is available. Moreover, an equally effective pan-serotype dengue virus vaccine is not available. Recently, two DENV vaccines, Dengvaxia and Qdenga, were licensed for limited use. However, none of them have been approved in Bangladesh. DENV is transmitted by Aedes mosquitoes, and global warming caused by climate change favoring Aedes breeding plays an important role in increasing DENV infections in Bangladesh. Dengue is a serious public health concern in Bangladesh. In the year 2023, Bangladesh witnessed its largest dengue outbreak, with the highest number of dengue cases (n = 321,179) and dengue-related deaths (n = 1,705) in a single epidemic year. There is an increased risk of severe dengue in individuals with preexisting DENV-specific immunoglobulin G if the individuals become infected with different DENV serotypes. To date, vector control has remained the mainstay for controlling dengue; therefore, an immediate, strengthened, and effective vector control program is critical and should be regularly performed for controlling dengue outbreaks in Bangladesh. In addition, the use of DENV vaccine in curbing dengue epidemics in Bangladesh requires more consideration and judgment by the respective authority of Bangladesh. This review provides perspectives on the control and prevention of dengue outbreaks. We also discuss the challenges of DENV vaccine use to reduce dengue epidemics infection in Bangladesh.
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Affiliation(s)
- Mohammad Enamul Hoque Kayesh
- Department of Microbiology and Public Health, Faculty of Animal Science and Veterinary Medicine, Patuakhali Science and Technology University, Barishal, Bangladesh
| | - Humayra Nazneen
- Department of Haematology, Dhaka Medical College Hospital, Dhaka, Bangladesh
| | - Michinori Kohara
- Department of Microbiology and Cell Biology, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Kyoko Tsukiyama-Kohara
- Joint Faculty of Veterinary Medicine, Transboundary Animal Diseases Centre, Kagoshima University, Kagoshima, Japan
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15
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Pham HT, Pham TNT, Tran NHT, Ha QD, Tran DK, Nguyen NHD, Pham VH, Pham ST. Dengue Hemorrhagic Fever in Quang Nam Province (Vietnam) from 2020 to 2022-A Study on Serotypes Distribution and Immunology Factors. Diagnostics (Basel) 2024; 14:1772. [PMID: 39202259 PMCID: PMC11353977 DOI: 10.3390/diagnostics14161772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2024] [Revised: 08/02/2024] [Accepted: 08/05/2024] [Indexed: 09/03/2024] Open
Abstract
Background: Dengue hemorrhagic fever (DHF) is the most prevalent and fastest-growing vector-borne disease globally, with symptoms ranging from mild to severe and, in some cases, fatal. Quang Nam province in Vietnam can serve as a model for dengue epidemiological study, as it is an endemic region for DHF with a tropical climate, which significantly constrains the health system. However, there are very few epidemiological and microbiological reports on Dengue virus (DENV) serotypes in this region due to the limited availability of advanced surveillance infrastructure. Aims of the study: This study aims to (1) assess the PCR positivity rates among hospitalized patients with clinical Dengue presentation; (2) identify the circulating DENV serotypes; and (3) assess the impact of secondary DENV infections on outbreak severity by detecting the presence of DENV-specific IgG antibodies in the plasma of DENV-infected patients. Materials and methods: Blood samples from patients clinically diagnosed with DHF and admitted to Quang Nam General Hospital (2020-2022) were analyzed. RNA extraction was performed using the NKDNA/RNAprep MAGBEAD kit, followed by Multiplex Reverse Transcription real-time Polymerase Chain Reaction (MLP RT-rPCR) for DENV detection and serotype identification. Positive samples were further tested for DENV-specific IgG antibodies using an enzyme-linked immunosorbent assay (ELISA). Results: The PCR positivity rate among hospitalized patients was approximately 68% throughout the study period. A significant shift in DENV serotypes was observed, with DENV-2 initially dominant and later giving way to DENV-1. IgG was detected in nearly half of the MPL RT-rPCR-positive samples, indicating secondary DENV infections. Conclusions: Our study highlights persistent dengue prevalence and dynamic shifts in DENV serotypes in Quang Nam province, emphasizing the need for improved diagnostic strategies and timely sample collection. The significant serotype shifts and the presence of IgG in hospitalized patients suggest potential severe outcomes from recurrent DENV infections, possibly linked to antibody-dependent enhancement (ADE) effect, underscoring the importance of advanced surveillance, vector control, vaccination campaigns, and public education to predict and prevent future DHF epidemics.
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Affiliation(s)
- Huong T. Pham
- Vietnam Research and Development Institute of Clinical Microbiology, Ho Chi Minh City 700000, Vietnam; (H.T.P.); (N.H.T.T.); (Q.D.H.); (D.K.T.)
- Nam Khoa Co., Ltd., Ho Chi Minh City 700000, Vietnam
| | - Thao N. T. Pham
- Faculty of Medicine, Phan Chau Trinh University, Dien Ban 520000, Vietnam; (T.N.T.P.); (N.H.D.N.)
| | - Nhu H. T. Tran
- Vietnam Research and Development Institute of Clinical Microbiology, Ho Chi Minh City 700000, Vietnam; (H.T.P.); (N.H.T.T.); (Q.D.H.); (D.K.T.)
- Nam Khoa Co., Ltd., Ho Chi Minh City 700000, Vietnam
| | - Quang D. Ha
- Vietnam Research and Development Institute of Clinical Microbiology, Ho Chi Minh City 700000, Vietnam; (H.T.P.); (N.H.T.T.); (Q.D.H.); (D.K.T.)
- Nam Khoa Co., Ltd., Ho Chi Minh City 700000, Vietnam
| | - Duy K. Tran
- Vietnam Research and Development Institute of Clinical Microbiology, Ho Chi Minh City 700000, Vietnam; (H.T.P.); (N.H.T.T.); (Q.D.H.); (D.K.T.)
- Nam Khoa Co., Ltd., Ho Chi Minh City 700000, Vietnam
| | - Nam H. D. Nguyen
- Faculty of Medicine, Phan Chau Trinh University, Dien Ban 520000, Vietnam; (T.N.T.P.); (N.H.D.N.)
| | - Van H. Pham
- Vietnam Research and Development Institute of Clinical Microbiology, Ho Chi Minh City 700000, Vietnam; (H.T.P.); (N.H.T.T.); (Q.D.H.); (D.K.T.)
- Nam Khoa Co., Ltd., Ho Chi Minh City 700000, Vietnam
| | - Son T. Pham
- Vietnam Research and Development Institute of Clinical Microbiology, Ho Chi Minh City 700000, Vietnam; (H.T.P.); (N.H.T.T.); (Q.D.H.); (D.K.T.)
- New South Wales Health, Sydney, NSW 2065, Australia
- Royal Australian College of General Practitioners, Sydney, NSW 2000, Australia
- Australasian College for Emergency Medicine, Melbourne, VIC 3003, Australia
- Sydney Medical School, The University of Sydney, Sydney, NSW 2145, Australia
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16
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Wongtrakul W, Charatcharoenwitthaya K, Karaketklang K, Charatcharoenwitthaya P. Incidence of acute liver failure and its associated mortality in patients with dengue infection: A systematic review and meta-analysis. J Infect Public Health 2024; 17:102497. [PMID: 39024894 DOI: 10.1016/j.jiph.2024.102497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 06/27/2024] [Accepted: 07/09/2024] [Indexed: 07/20/2024] Open
Abstract
Acute liver failure (ALF) is a devastating consequence of dengue infection. This systematic review and meta-analysis assessed the incidence of ALF in dengue infection and its associated mortality. We systematically searched the EMBASE and MEDLINE databases from inception to December 2023 for observational studies reporting ALF incidence and mortality in dengue patients. Twenty-one studies encompassing 26,839 dengue-infected patients were included. Meta-analysis revealed a pooled incidence of ALF in cases of general dengue infection of 2.0 % (95 % CI, 1.2-3.0 %), with 1.2 % (95 % CI, 0.6-2.1 %) in adults and 5.0 % (95 % CI, 1.5-10.2 %) in children. ALF incidence was 17.3 % (95 % CI, 6.5 %-31.5 %) in severe dengue and 7.4 % (95 % CI, 0.8-18.5 %) in dengue shock syndrome. The pooled mortality rate of dengue-associated ALF was 47.0 % (95 % CI, 32.9-61.2 %). These findings underscore the detrimental impact of dengue infection on the development of the relatively uncommon, albeit life-threatening, condition of ALF.
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Affiliation(s)
- Wasit Wongtrakul
- Division of Gastroenterology, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand; Department of Research and Development, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | | | - Khemajira Karaketklang
- Division of Gastroenterology, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Phunchai Charatcharoenwitthaya
- Division of Gastroenterology, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.
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17
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Hadpech S, Thongboonkerd V. Proteomic investigations of dengue virus infection: key discoveries over the last 10 years. Expert Rev Proteomics 2024; 21:281-295. [PMID: 39049185 DOI: 10.1080/14789450.2024.2383580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 07/12/2024] [Indexed: 07/27/2024]
Abstract
INTRODUCTION Dengue virus (DENV) infection remains one of the most significant infectious diseases in humans. Several efforts have been made to address its molecular mechanisms. Over the last 10 years, proteomics has been widely applied to investigate various aspects of DENV infection. AREAS COVERED In this review, we briefly introduce common proteomics approaches using various mass spectrometric modalities followed by summarizing all the discoveries obtained from proteomic investigations of DENV infection over the last 10 years. These include the data on DENV-vector interactions and host responses to address the DENV biology and disease mechanisms. Moreover, applications of proteomics to disease prevention, diagnosis, vaccine design, development of anti-DENV agents and other new treatment strategies are discussed. EXPERT OPINION Despite efforts on disease prevention, DENV infection is still a significant global healthcare burden that affects the general population. As summarized herein, proteomic technologies with high-throughput capabilities have provided more in-depth details of protein dynamics during DENV infection. More extensive applications of proteomics and other powerful research tools would provide a promise to better cope and prevent this mosquito-borne infectious disease.
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Affiliation(s)
- Sudarat Hadpech
- Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
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18
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Sarker S, Dutta C, Mallick A, Das S, Das Chowdhury C, De A, Gorai S, Biswas S. Dengue virus (DV) non-cross-reactive Omicron wave COVID-19 serums enhanced DV3 infectivity in vitro. J Med Microbiol 2024; 73. [PMID: 38963412 DOI: 10.1099/jmm.0.001852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/05/2024] Open
Abstract
Introduction. In India, the SARS-CoV-2 Delta wave (2020-2021) faded away with the advent of the Omicron variants (2021-present). Dengue incidences were observed to be less in Southeast Asia during the active years of the pandemic (2020-2021). However, dengue virus type 3 (DV3) cases were increasingly reported in this region (including India) concurrent with the progression of the Omicron waves since 2022.Hypothesis. What could be the reason(s) behind this unusual DV3 surge after an overall dip in dengue incidences in many parts of Southeast Asia?Aim. We, therefore, investigated the current state of cross-reactivity of prevalent (Omicron era) SARS-CoV-2 serums with different DV serotypes and evaluated the impact of such serums on DV neutralization in cell culture.Methodology. Fifty-five COVID-19 serum samples (January-September 2022) and three pre-pandemic archived serum samples from apparently healthy individuals were tested for DV or SARS-CoV-2 IgM/IgG using the lateral flow immunoassays. DV1-4 virus neutralization tests (VNTs) were done with the SARS-CoV-2 antibody (Ab)-positive serums in Huh7 cells. DV3 envelope (env) gene was PCR amplified and sequenced for three archived DV isolates, one from 2017 and two from 2021.Results. SARS-CoV-2 Ab-positive samples constituted 74.5 % of the serums. Of these, 41.5 % were DV cross-reactive and 58.5 % were not. The DV cross-reactive serums neutralized all DV serotypes (DV1-4), as per previous results and this study. The DV non-cross-reactive serums (58.5 %) also cross-neutralized DV1, 2 and 4 but increased DV3 infectivity by means of antibody-dependent enhancement of infection as evident from significantly higher DV3 titres in VNT compared to control serums. The DV3 envelope was identical among the three isolates, including isolate 1 used in VNTs. Our results suggest that DV cross-reactivity of SARS-CoV-2 serums diminished with the shift from Delta to Omicron prevalence. Such COVID-19 serums (DV non-cross-reactive) might have played a major role in causing DV3 surge during the Omicron waves.Conclusion. Patients suspected of dengue or COVID-19 should be subjected to virus/antigen tests and serological tests for both the diseases for definitive diagnosis, prognosis and disease management.
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Affiliation(s)
- Supratim Sarker
- Infectious Diseases and Immunology Division, CSIR-Indian Institute of Chemical Biology, Kolkata, West Bengal, India
| | - Chiroshri Dutta
- Infectious Diseases and Immunology Division, CSIR-Indian Institute of Chemical Biology, Kolkata, West Bengal, India
| | - Abinash Mallick
- Infectious Diseases and Immunology Division, CSIR-Indian Institute of Chemical Biology, Kolkata, West Bengal, India
| | - Sayantan Das
- Infectious Diseases and Immunology Division, CSIR-Indian Institute of Chemical Biology, Kolkata, West Bengal, India
| | - Chandrika Das Chowdhury
- Infectious Diseases and Immunology Division, CSIR-Indian Institute of Chemical Biology, Kolkata, West Bengal, India
| | - Abhishek De
- Department of Dermatology, Calcutta National Medical College and Hospital, Kolkata, West Bengal, India
| | - Surajit Gorai
- Department of Dermatology, Apollo Multispeciality Hospital, Kolkata, West Bengal, India
| | - Subhajit Biswas
- Infectious Diseases and Immunology Division, CSIR-Indian Institute of Chemical Biology, Kolkata, West Bengal, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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Krittanai S, Rattanapisit K, Bulaon CJI, Pitaksajjakul P, Keadsanti S, Ramasoota P, Strasser R, Phoolcharoen W. Nicotiana benthamiana as a potential source for producing anti-dengue virus D54 neutralizing therapeutic antibody. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2024; 42:e00844. [PMID: 38881650 PMCID: PMC11179242 DOI: 10.1016/j.btre.2024.e00844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 05/07/2024] [Accepted: 05/26/2024] [Indexed: 06/18/2024]
Abstract
Dengue virus (DENV), transmitted by mosquitoes, is classified into four serotypes (DENV1-4) and typically causes mild, self-limiting symptoms upon initial infection. However, secondary infection can lead to severe symptoms due to antibody-dependent enhancement (ADE). To address this, anti-DENV antibodies are being developed with the goal of neutralizing infection without ADE activity. Previous attempts using a 54_hG1 antibody from CHO-K1 mammalian cells resulted in ADE induction, increasing viral infection. This study aimed to express the D54 monoclonal antibody in Nicotiana benthamiana. The plant-produced antibody had a similar neutralizing profile to the previous 54_hG1 antibody. Notably, the ADE activities of the plant-derived antibody were successfully eliminated, with no sign of viral induction. These findings suggest that N. benthamiana could be a source of therapeutic DENV antibodies. The method offers several advantages, including lower ADE, cost-effectiveness, simple facility requirements, scalability, and potential industrial-scale production in GMP facilities.
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Affiliation(s)
- Supaluk Krittanai
- Center of Excellence in Plant-produced Pharmaceuticals, Chulalongkorn University, Bangkok 10330, Thailand
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand
| | | | | | - Pannamthip Pitaksajjakul
- Center of Excellence for Antibody Research, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
- Department of Social and Environmental Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
| | - Sujitra Keadsanti
- Center of Excellence for Antibody Research, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
| | - Pongrama Ramasoota
- Center of Excellence for Antibody Research, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
- Department of Social and Environmental Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
| | - Richard Strasser
- Department of Applied Genetics and Cell Biology, University of Natural Resources and Life Sciences, Vienna, Muthgasse 18, 1190 Vienna, Austria
| | - Waranyoo Phoolcharoen
- Center of Excellence in Plant-produced Pharmaceuticals, Chulalongkorn University, Bangkok 10330, Thailand
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand
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20
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Cloherty APM, Rader AG, Patel KS, Eisden TJTHD, van Piggelen S, Schreurs RRCE, Ribeiro CMS. Dengue virus exploits autophagy vesicles and secretory pathways to promote transmission by human dendritic cells. Front Immunol 2024; 15:1260439. [PMID: 38863700 PMCID: PMC11165123 DOI: 10.3389/fimmu.2024.1260439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 04/19/2024] [Indexed: 06/13/2024] Open
Abstract
Dengue virus (DENV), transmitted by infected mosquitoes, is a major public health concern, with approximately half the world's population at risk for infection. Recent decades have increasing incidence of dengue-associated disease alongside growing frequency of outbreaks. Although promising progress has been made in anti-DENV immunizations, post-infection treatment remains limited to non-specific supportive treatments. Development of antiviral therapeutics is thus required to limit DENV dissemination in humans and to help control the severity of outbreaks. Dendritic cells (DCs) are amongst the first cells to encounter DENV upon injection into the human skin mucosa, and thereafter promote systemic viral dissemination to additional human target cells. Autophagy is a vesicle trafficking pathway involving the formation of cytosolic autophagosomes, and recent reports have highlighted the extensive manipulation of autophagy by flaviviruses, including DENV, for viral replication. However, the temporal profiling and function of autophagy activity in DENV infection and transmission by human primary DCs remains poorly understood. Herein, we demonstrate that mechanisms of autophagosome formation and extracellular vesicle (EV) release have a pro-viral role in DC-mediated DENV transmission. We show that DENV exploits early-stage canonical autophagy to establish infection in primary human DCs. DENV replication enhanced autophagosome formation in primary human DCs, and intrinsically-heightened autophagosome biogenesis correlated with relatively higher rates of DC susceptibility to DENV. Furthermore, our data suggest that viral replication intermediates co-localize with autophagosomes, while productive DENV infection introduces a block at the late degradative stages of autophagy in infected DCs but not in uninfected bystander cells. Notably, we identify for the first time that approximately one-fourth of DC-derived CD9/CD81/CD63+ EVs co-express canonical autophagy marker LC3, and demonstrate that DC-derived EV populations are an alternative, cell-free mechanism by which DCs promote DENV transmission to additional target sites. Taken together, our study highlights intersections between autophagy and secretory pathways during viral infection, and puts forward autophagosome accumulation and viral RNA-laden EVs as host determinants of DC-mediated DENV infection in humans. Host-directed therapeutics targeting autophagy and exocytosis pathways thus have potential to enhance DC-driven resistance to DENV acquisition and thereby limit viral dissemination by initial human target cells following mosquito-to-human transmission of DENV.
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Affiliation(s)
- Alexandra P. M. Cloherty
- Department of Experimental Immunology, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
- Amsterdam Institute for Immunology and Infectious Diseases, Amsterdam, Netherlands
| | - Anusca G. Rader
- Department of Experimental Immunology, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
- Amsterdam Institute for Immunology and Infectious Diseases, Amsterdam, Netherlands
- Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, Netherlands
| | - Kharishma S. Patel
- Department of Experimental Immunology, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
- Amsterdam Institute for Immunology and Infectious Diseases, Amsterdam, Netherlands
| | - Tracy-Jane T. H. D. Eisden
- Department of Experimental Immunology, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
- Amsterdam Institute for Immunology and Infectious Diseases, Amsterdam, Netherlands
- Department of Medical Oncology, Cancer Center Amsterdam, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Sterre van Piggelen
- Department of Experimental Immunology, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
- Amsterdam Institute for Immunology and Infectious Diseases, Amsterdam, Netherlands
| | - Renée R. C. E. Schreurs
- Department of Experimental Immunology, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
- Amsterdam Institute for Immunology and Infectious Diseases, Amsterdam, Netherlands
- Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, Netherlands
| | - Carla M. S. Ribeiro
- Department of Experimental Immunology, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
- Amsterdam Institute for Immunology and Infectious Diseases, Amsterdam, Netherlands
- Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, Netherlands
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21
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Kow CS, Ramachandram DS, Hasan SS, Thiruchelvam K. Letter to the editor: Critical need for robust surveillance in response to DENV-2 and SARS-CoV-2 cross-reactivity. Euro Surveill 2024; 29:2400236. [PMID: 38726696 PMCID: PMC11083973 DOI: 10.2807/1560-7917.es.2024.29.19.2400236] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Accepted: 05/02/2024] [Indexed: 05/13/2024] Open
Affiliation(s)
- Chia Siang Kow
- School of Pharmacy, International Medical University, Kuala Lumpur, Malaysia
| | | | - Syed Shahzad Hasan
- School of Applied Sciences, University of Huddersfield, Huddersfield, United Kingdom
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22
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Hasan MN, Khalil I, Chowdhury MAB, Rahman M, Asaduzzaman M, Billah M, Banu LA, Alam MU, Ahsan A, Traore T, Uddin MJ, Galizi R, Russo I, Zumla A, Haider N. Two decades of endemic dengue in Bangladesh (2000-2022): trends, seasonality, and impact of temperature and rainfall patterns on transmission dynamics. JOURNAL OF MEDICAL ENTOMOLOGY 2024; 61:345-353. [PMID: 38253990 PMCID: PMC10936167 DOI: 10.1093/jme/tjae001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 12/17/2023] [Accepted: 01/05/2024] [Indexed: 01/24/2024]
Abstract
The objectives of this study were to compare dengue virus (DENV) cases, deaths, case-fatality ratio [CFR], and meteorological parameters between the first and the recent decades of this century (2000-2010 vs. 2011-2022) and to describe the trends, seasonality, and impact of change of temperature and rainfall patterns on transmission dynamics of dengue in Bangladesh. For the period 2000-2022, dengue cases and death data from Bangladesh's Ministry of Health and Family Welfare's website, and meteorological data from the Bangladesh Meteorological Department were analyzed. A Poisson regression model was performed to identify the impact of meteorological parameters on the monthly dengue cases. A forecast of dengue cases was performed using an autoregressive integrated moving average model. Over the past 23 yr, a total of 244,246 dengue cases were reported including 849 deaths (CFR = 0.35%). The mean annual number of dengue cases increased 8 times during the second decade, with 2,216 cases during 2000-2010 vs. 18,321 cases during 2011-2022. The mean annual number of deaths doubled (21 vs. 46), but the overall CFR has decreased by one-third (0.69% vs. 0.23%). Concurrently, the annual mean temperature increased by 0.49 °C, and rainfall decreased by 314 mm with altered precipitation seasonality. Monthly mean temperature (Incidence risk ratio [IRR]: 1.26), first-lagged rainfall (IRR: 1.08), and second-lagged rainfall (IRR: 1.17) were significantly associated with monthly dengue cases. The increased local temperature and changes in rainfall seasonality might have contributed to the increased dengue cases in Bangladesh.
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Affiliation(s)
- Mohammad Nayeem Hasan
- Department of Statistics, Shahjalal University of Science and Technology, Sylhet 3114, Bangladesh
| | - Ibrahim Khalil
- Department of Livestock Services, Ministry of Fisheries and Livestock, Bangladesh, Dhaka, Bangladesh
| | | | - Mahbubur Rahman
- The Royal Veterinary College, University of London, Hawkshead Lane, North Mymms, Hatfield, Hertfordshire, UK
- Institute of Epidemiology, Disease Control and Research (IEDCR), Ministry of Health and Family Welfare, Mohakhali, Dhaka, Bangladesh
| | - Md Asaduzzaman
- School of Digital, Technologies, and Arts, Staffordshire University, Stoke on Trent ST4 2DE, UK
| | - Masum Billah
- School of Digital, Technologies, and Arts, Staffordshire University, Stoke on Trent ST4 2DE, UK
| | - Laila Arjuman Banu
- Department of Anatomy, Bangabandhu Sheik Mujib Medical University, Dhaka, Bangladesh
| | - Mahbub-Ul Alam
- Environmental Intervention Unit, International Centre for Diarrhoeal Diseases Research, Bangladesh (ICDDR,B), Dhaka 1212, Bangladesh
| | - Atik Ahsan
- Environmental Intervention Unit, International Centre for Diarrhoeal Diseases Research, Bangladesh (ICDDR,B), Dhaka 1212, Bangladesh
| | - Tieble Traore
- Emergency Preparedness and Response Programme, WHO Regional Office for Africa, Dakar Hub, Dakar, Senegal
| | - Md Jamal Uddin
- Department of Statistics, Shahjalal University of Science and Technology, Sylhet 3114, Bangladesh
- Department of General Educational and Development, Daffodil International University, Dhaka, Bangladesh
| | - Roberto Galizi
- School of Life Sciences, Faculty of Natural Sciences, Keele University, Keele, Staffordshire ST5 5BG, UK
| | - Ilaria Russo
- School of Medicine, Faculty of Medicine and Health Sciences, Keele University, Staffordshire ST5 5BG, UK
| | - Alimuddin Zumla
- Division of Infection and Immunity, Centre for Clinical Microbiology, University College London and NIHR-BRC, University College London Hospitals, London, UK
| | - Najmul Haider
- School of Life Sciences, Faculty of Natural Sciences, Keele University, Keele, Staffordshire ST5 5BG, UK
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23
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Gálvez RI, Martínez-Pérez A, Escarrega EA, Singh T, Zambrana JV, Balmaseda Á, Harris E, Weiskopf D. Frequency of Dengue Virus-Specific T Cells is related to Infection Outcome in Endemic Settings. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2024.02.05.24302330. [PMID: 38370822 PMCID: PMC10871461 DOI: 10.1101/2024.02.05.24302330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
Dengue is widespread in tropical and subtropical regions globally and leads to a considerable burden of disease. Annually, dengue virus (DENV) causes up to 400 million infections, of which ~25% present with clinical symptoms ranging from mild to fatal. Despite its significance as a growing public health concern, the development of effective DENV vaccines has been highly challenging. One of the reasons is the lack of comprehensive understanding of the influence exerted by prior DENV infections and immune responses with cross-reactive properties. To investigate this, we collected samples from a pediatric cohort study in dengue-endemic Managua, Nicaragua. We characterized T cell responses in a group of 71 healthy children who had previously experienced one or more natural DENV infections and who, within one year after sample collection, had a subsequent DENV infection that was either symptomatic (n=25) or inapparent (n=46, absence of clinical disease). Thus, our study was designed to investigate the impact of pre-existing DENV specific T cell responses on the clinical outcomes of subsequent DENV infection. We assessed the DENV specific T cell responses using an activation-induced marker assay (AIM). Children who had experienced only one prior DENV infection displayed heterogeneous DENV specific CD4+ and CD8+ T cell frequencies. In contrast, children who had experienced two or more DENV infections showed significantly higher frequencies of DENV specific CD4+ and CD8+ T cells that were associated with inapparent as opposed to symptomatic outcomes in the subsequent DENV infection. Taken together, these findings demonstrate the protective role of DENV specific T cells against symptomatic DENV infection and constitute an advancement toward identifying protective immune correlates against dengue fever and clinical disease.
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Affiliation(s)
- Rosa Isela Gálvez
- Center for Vaccine Innovation, La Jolla Institute for Immunology, La Jolla, CA 92037, USA
| | - Amparo Martínez-Pérez
- Center for Vaccine Innovation, La Jolla Institute for Immunology, La Jolla, CA 92037, USA
| | - E. Alexandar Escarrega
- Center for Vaccine Innovation, La Jolla Institute for Immunology, La Jolla, CA 92037, USA
| | - Tulika Singh
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, CA 94720-3370, USA
| | - José Víctor Zambrana
- Sustainable Sciences Institute, Managua, Nicaragua
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, MI 48109-2029, USA
| | - Ángel Balmaseda
- Sustainable Sciences Institute, Managua, Nicaragua
- Laboratorio Nacional de Virología, Centro Nacional de Diagnóstico y Referencia, Ministerio de Salud, Managua, Nicaragua
| | - Eva Harris
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, CA 94720-3370, USA
| | - Daniela Weiskopf
- Center for Vaccine Innovation, La Jolla Institute for Immunology, La Jolla, CA 92037, USA
- Division of Infectious Diseases and Global Public Health, School of Medicine, University of California, San Diego, La Jolla, CA 92037, USA
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24
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Torres JR, Brea-Del Castillo J, Saez-Llorens X, Ávila-Agüero ML, Coronell R W, Martinez-De Cuellar C, Debbag R. Regional molecular epidemiology of dengue and the potential optimization of its control through the use of vaccines. Report of the Arbovirus Committee of the Latin American Society of Pediatric Infectious Diseases, SLIPE. Expert Rev Vaccines 2024; 23:773-778. [PMID: 39167081 DOI: 10.1080/14760584.2024.2395550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 08/03/2024] [Accepted: 08/18/2024] [Indexed: 08/23/2024]
Abstract
INTRODUCTION Dengue disease represents a large and growing global threat to public health, accounting for a significant burden to health systems of endemic countries. The World Health Organization's (WHO) Strategic Advisory Group of Experts (SAGE) and the European Medicines Agency (EMA) currently recommend the use of TAK-003 dengue vaccine in high dengue burden and transmission settings for countries considering vaccination as part of their integrated management strategy for prevention and control of Dengue. AREAS COVERED This paper describes the main conclusions of a workshop held by the Arbovirus Committee of the Latin American Society of Pediatric Infectious Diseases (SLIPE) in November 2023, to generate consensus recommendations on the introduction of this new vaccine in the region. Considerations were made regarding the molecular epidemiology of dengue infection in the Americas and the need for more precise phylogenetic classification and correlation with clinical outcome and disease severity. EXPERT OPINION Introduction of dengue vaccine should be considered as an strategy for health entities in the region, with participation of social sectors, scientific societies, and ministries of health that could be able to create a successful vaccination program.
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Affiliation(s)
- Jaime R Torres
- Infectious Diseases Section, Institute of Tropical Medicine, Universidad Central de Venezuela, Caracas, Venezuela
| | - Jose Brea-Del Castillo
- Escuela de Medicina, Facultad de Ciencias de la Salud del Instituto Tecnológico de Santo Domingo, Santo Domingo, Dominican Republic
- Hospital Infantil "Dr. Hugo Mendoza", Santo Domingo, Dominican Republic
| | - Xavier Saez-Llorens
- Children's Hospital "Dr. José Renán Esquivel", Panama City, Panama
- SNI (Senacyt) and Cevaxin, Panama City, Panama
| | - María L Ávila-Agüero
- Pediatric Infectious Diseases Division, Hospital Nacional de Niños "Dr. Carlos Sáenz Herrera", Centro de Ciencias Médicas, Caja Costarricense de Seguro Social (CCSS), San José, Costa Rica
- Center for Infectious Disease Modeling and Analysis (CIDMA), Yale University New Haven, New Haven, CT, USA
| | - Wilfrido Coronell R
- Pediatric Infectious Diseases department, University of Cartagena, Cartagena, Colombia
| | | | - Roberto Debbag
- Vice-president of the Latin-American Vaccinology Society, Buenos Aires, Argentina
- Latin American Society of Pediatric Infectious Diseases, Buenos Aires, Argentina
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25
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Teo A, Tan HD, Loy T, Chia PY, Chua CLL. Correction: Understanding antibody-dependent enhancement in dengue: Are afucosylated IgG1s a concern? PLoS Pathog 2023; 19:e1011736. [PMID: 37851611 PMCID: PMC10584112 DOI: 10.1371/journal.ppat.1011736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2023] Open
Abstract
[This corrects the article DOI: 10.1371/journal.ppat.1011223.].
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26
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Sarma DK, Rathod L, Mishra S, Das D, Agarwal A, Sharma G, Singh TA, Kumawat M, Singh S, Verma V, Kumar M, Shubham S, Tiwari RR, Prakash A. Molecular surveillance of dengue virus in field-collected Aedes mosquitoes from Bhopal, central India: evidence of circulation of a new lineage of serotype 2. Front Microbiol 2023; 14:1260812. [PMID: 37779723 PMCID: PMC10539573 DOI: 10.3389/fmicb.2023.1260812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 08/31/2023] [Indexed: 10/03/2023] Open
Abstract
Introduction Dengue fever is hyperendemic in several Southeast and South Asian countries, including India, with all four serotypes (DENV 1-4) circulating at different periods and in different locations. Sustainable and improved virological and entomological surveillance is the only tool to prevent dengue and other vector-borne diseases. Objectives The present study has been carried out to detect and characterize the circulating dengue virus (DENV) in field-collected Aedes mosquitoes in Bhopal, Central India. Methods Aedes mosquitoes were collected from 29 localities within Bhopal city during October 2020 to September 2022. DENV infection was assessed in the individual head and thorax regions of Aedes mosquitoes using reverse transcriptase PCR. Positive samples were sequenced, and the circulating serotypes and genotypes were determined using phylogenetic analysis. Results DENV RNA was detected in 7 Aedes aegypti and 1 Aedes albopictus, with infection rates of 0.59 and 0.14%, respectively. Phylogenetic analysis revealed all the isolates belonged to DENV serotype 2 and distinctly clustered with the non-Indian lineage (cosmopolitan genotype 4a), which was not recorded from the study area earlier. The time to most common recent ancestor (TMRCA) of these sequences was 7.4 years old, with the highest posterior density (HPD) of 3.5-12.2 years, indicating that this new lineage emerged during the year 2014. This is the first report on the DENV incrimination in both Ae. aegypti and Ae. albopictus mosquitoes collected from Bhopal, Central India. Conclusion The observed emergence of the non-Indian lineage of DENV-2 in Bhopal, which again is a first report from the area, coincides with the gradual increase in DENV cases in Bhopal since 2014. This study emphasizes the importance of DENV surveillance and risk assessment in this strategically important part of the country to decipher its outbreak and severe disease-causing potential.
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Affiliation(s)
| | - Lokendra Rathod
- ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Sweta Mishra
- ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Deepanker Das
- ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Ankita Agarwal
- State Virology Laboratory, Department of Microbiology, Gandhi Medical College, Bhopal, India
| | - Gaurav Sharma
- ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Tanim Arpit Singh
- Maharaja Ranjit Singh College of Professional Sciences, Indore, India
| | - Manoj Kumawat
- ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Samradhi Singh
- ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Vinod Verma
- Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
| | - Manoj Kumar
- ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Swasti Shubham
- ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | | | - Anil Prakash
- ICMR-National Institute for Research in Environmental Health, Bhopal, India
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27
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Malik S, Ahsan O, Mumtaz H, Tahir Khan M, Sah R, Waheed Y. Tracing down the Updates on Dengue Virus-Molecular Biology, Antivirals, and Vaccine Strategies. Vaccines (Basel) 2023; 11:1328. [PMID: 37631896 PMCID: PMC10458802 DOI: 10.3390/vaccines11081328] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 07/28/2023] [Accepted: 08/02/2023] [Indexed: 08/29/2023] Open
Abstract
BACKGROUND Nearly half of the world is at risk of developing dengue infection. Dengue virus is the causative agent behind this public healthcare concern. Millions of dengue cases are reported every year, leading to thousands of deaths. The scientific community is working to develop effective therapeutic strategies in the form of vaccines and antiviral drugs against dengue. METHODS In this review, a methodological approach has been used to gather data from the past five years to include the latest developments against the dengue virus. RESULTS Different therapeutics and antiviral targets against the dengue virus are at different stages of development, but none have been approved by the FDA. Moreover, various vaccination strategies have also been discussed, including attenuated virus vaccines, recombinant subunit vaccines, viral vector vaccines, DNA vaccines, nanotechnology, and plant-based vaccines, which are used to develop effective vaccines for the dengue virus. Many dengue vaccines pass the initial phases of evaluation, but only two vaccines have been approved for public use. DENGVAXIA is the only FDA-approved vaccine against all four stereotypes of the dengue virus, but it is licensed for use only in individuals 6-16 years of age with laboratory-confirmed previous dengue infection and living in endemic countries. Takeda is the second vaccine approved for use in the European Union, the United Kingdom, Brazil, Argentina, Indonesia, and Thailand. It produced sustained antibody responses against all four serotypes of dengue virus, regardless of previous exposure and dosing schedule. Other dengue vaccine candidates at different stages of development are TV-003/005, TDENV PIV, V180, and some DNA vaccines. CONCLUSION There is a need to put more effort into developing effective vaccines and therapeutics for dengue, as already approved vaccines and therapeutics have limitations. DENGVAXIA is approved for use in children and teenagers who are 6-16 years of age and have confirmed dengue infection, while Takeda is approved for use in certain countries, and it has withdrawn its application for FDA approval.
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Affiliation(s)
- Shiza Malik
- Bridging Health Foundation, Rawalpindi 46000, Pakistan
| | - Omar Ahsan
- Department of Medicine, Foundation University Medical College, Foundation University Islamabad, Islamabad 44000, Pakistan
| | - Hassan Mumtaz
- Innovation, Implementation, and Partnership Unit, Association for Social Development, Islamabad 44000, Pakistan
- Health Services Academy, Islamabad 44000, Pakistan
| | - Muhammad Tahir Khan
- Institute of Molecular Biology and Biotechnology (IMBB), University of Lahore, 1KM Defence Road, Lahore 58810, Pakistan
- Zhongjing Research and Industrialization Institute of Chinese Medicine, Zhongguancun Scientific Park, Meixi, Nanyang 473006, China
| | - Ranjit Sah
- Department of Microbiology, Tribhuvan University Teaching Hospital, Institute of Medicine, Kathmandu 44600, Nepal
- Department of Microbiology, Dr. D. Y. Patil Medical College, Hospital and Research Centre, Dr. D. Y. Patil Vidyapeeth, Pune 411018, Maharashtra, India
- Department of Public Health Dentistry, Dr. D.Y. Patil Dental College and Hospital, Dr. D.Y. Patil Vidyapeeth, Pune 411018, Maharashtra, India
| | - Yasir Waheed
- Office of Research, Innovation and Commercialization (ORIC), Shaheed Zulfiqar Ali Bhutto Medical University (SZABMU), Islamabad 44000, Pakistan
- Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Byblos 1401, Lebanon
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