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Osako H, Xu Q, Nabeshima T, Balingit JC, Nwe KM, Yu F, Inoue S, Hayasaka D, Ngwe Tun MM, Morita K, Takamatsu Y. Clinical Factors Associated with SFTS Diagnosis and Severity in Cats. Viruses 2024; 16:874. [PMID: 38932167 PMCID: PMC11209305 DOI: 10.3390/v16060874] [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: 04/23/2024] [Revised: 05/25/2024] [Accepted: 05/28/2024] [Indexed: 06/28/2024] Open
Abstract
Severe fever with thrombocytopenia syndrome (SFTS) is a potentially fatal tick-borne zoonosis caused by SFTS virus (SFTSV). In addition to tick bites, animal-to-human transmission of SFTSV has been reported, but little is known about feline SFTSV infection. In this study, we analyzed data on 187 cats with suspected SFTS to identify biomarkers for SFTS diagnosis and clinical outcome. Body weight, red and white blood cell and platelet counts, and serum aspartate aminotransferase and total bilirubin levels were useful for SFTS diagnosis, whereas alanine aminotransferase, aspartate aminotransferase and serum SFTSV RNA levels were associated with clinical outcome. We developed a scoring model to predict SFTSV infection. In addition, we performed a phylogenetic analysis to reveal the relationship between disease severity and viral strain. This study provides comprehensive information on feline SFTS and could contribute to the protection of cat owners, community members, and veterinarians from the risk of cat-transmitted SFTSV infection.
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Affiliation(s)
- Hiromu Osako
- Department of Virology, Institute of Tropical Medicine, Nagasaki University (ITM-NU), Nagasaki 852-8523, Japan
- Medical School, Nagasaki University, Nagasaki 852-8523, Japan
| | - Qiang Xu
- Department of Virology, Institute of Tropical Medicine, Nagasaki University (ITM-NU), Nagasaki 852-8523, Japan
- Program for Nurturing Global Leaders in Tropical and Emerging Communicable Diseases, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8523, Japan
| | - Takeshi Nabeshima
- Department of Virology, Institute of Tropical Medicine, Nagasaki University (ITM-NU), Nagasaki 852-8523, Japan
| | - Jean Claude Balingit
- Department of Virology, Institute of Tropical Medicine, Nagasaki University (ITM-NU), Nagasaki 852-8523, Japan
- DEJIMA Infectious Disease Research Alliance, Nagasaki University, Nagasaki 852-8523, Japan
| | - Khine Mya Nwe
- Department of Virology, Institute of Tropical Medicine, Nagasaki University (ITM-NU), Nagasaki 852-8523, Japan
- DEJIMA Infectious Disease Research Alliance, Nagasaki University, Nagasaki 852-8523, Japan
| | - Fuxun Yu
- Department of Central Laboratory, Guizhou Provincial People’s Hospital, Guiyang 550002, China
- National Health Commission (NHC) Key Laboratory of Pulmonary Immunological Diseases, Guizhou Provincial People’s Hospital, Guiyang 550002, China
| | - Shingo Inoue
- Kenya Research Station, Institute of Tropical Medicine, Nagasaki University (ITM-NU), Nagasaki 852-8523, Japan
| | - Daisuke Hayasaka
- Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi 753-8515, Japan
| | - Mya Myat Ngwe Tun
- Department of Virology, Institute of Tropical Medicine, Nagasaki University (ITM-NU), Nagasaki 852-8523, Japan
- DEJIMA Infectious Disease Research Alliance, Nagasaki University, Nagasaki 852-8523, Japan
- Center for Vaccines and Therapeutic Antibodies for Emerging Infectious Diseases, Shimane University, Izumo 690-8504, Japan
| | - Kouichi Morita
- Department of Virology, Institute of Tropical Medicine, Nagasaki University (ITM-NU), Nagasaki 852-8523, Japan
- DEJIMA Infectious Disease Research Alliance, Nagasaki University, Nagasaki 852-8523, Japan
| | - Yuki Takamatsu
- Department of Virology, Institute of Tropical Medicine, Nagasaki University (ITM-NU), Nagasaki 852-8523, Japan
- Program for Nurturing Global Leaders in Tropical and Emerging Communicable Diseases, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8523, Japan
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Fu L, Xu L, Qian J, Wu X, Wang Z, Wang H, Liu D, Deng F, Shen S. The Neutralizing Monoclonal Antibodies against SFTS Group Bandaviruses Suggest New Targets of Specific or Broad-Spectrum Antivirals. Am J Trop Med Hyg 2023; 109:1319-1328. [PMID: 37931293 DOI: 10.4269/ajtmh.23-0073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 09/12/2023] [Indexed: 11/08/2023] Open
Abstract
Severe fever with thrombocytopenia syndrome virus (SFTSV), Heartland virus (HRTV) and Guertu virus (GTV) belong to the severe fever with thrombocytopenia syndrome/Heartland group of genus Bandavirus in the family Phenuiviridae of order Bunyavirales. Severe fever with thrombocytopenia syndrome virus and HRTV, identified from ticks from Asia and America, respectively, are important pathogens causing severe febrile diseases in humans. Guertu virus, closely related to these two viruses, is a potential pathogen, but no confirmed infection has been identified. So far, human-derived neutralizing monoclonal antibodies (mAbs) against SFTSV have been identified as having a great potential to be developed as antivirals; however, there is still a lack of neutralizing mAbs to GTV and HRTV. In this study, five neutralizing the mAbs against GTV and HRTV were obtained by hybridoma screening technology, four of which (14B4, 14D8, and 20D4 derived from GTV, and 27C8 derived from HRTV) showed cross reactivity and neutralization to all three viruses, and one derived from HRTV (10D6) neutralized HRTV specifically. The possible mechanisms of mAbs cross neutralization among the three viruses are discussed by analyzing their glycoprotein (GP) sequences and structures. Generating these neutralizing mAbs provides important antiviral candidates against GTV, HRTV, and SFTSV despite their differential activities, and their protective effect could be further evaluated in virus-infected mice. Their differential neutralizing efficiency and specificity further suggested that the three viruses share common mechanisms on the basis of GP functioning, and that HRTV poses a unique mechanism that differs from the other viruses. These findings shed light on developing broad-spectrum antiviral strategies against bandaviruses and promoting an understanding of the bandavirus infection process.
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Affiliation(s)
- Liyan Fu
- Brain Science and Advanced Technology Institute, Wuhan University of Science and Technology, Wuhan, China
- Key Laboratory of Virology and Biosafety and National Virus Resource Center, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China
| | - Lang Xu
- Brain Science and Advanced Technology Institute, Wuhan University of Science and Technology, Wuhan, China
| | - Jin Qian
- Brain Science and Advanced Technology Institute, Wuhan University of Science and Technology, Wuhan, China
- Key Laboratory of Virology and Biosafety and National Virus Resource Center, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China
| | - Xiaoli Wu
- Key Laboratory of Virology and Biosafety and National Virus Resource Center, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China
| | - Zhiying Wang
- Key Laboratory of Virology and Biosafety and National Virus Resource Center, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China
| | - Hualin Wang
- Key Laboratory of Virology and Biosafety and National Virus Resource Center, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China
| | - Dan Liu
- Brain Science and Advanced Technology Institute, Wuhan University of Science and Technology, Wuhan, China
| | - Fei Deng
- Key Laboratory of Virology and Biosafety and National Virus Resource Center, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China
| | - Shu Shen
- Key Laboratory of Virology and Biosafety and National Virus Resource Center, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China
- Hubei Jiangxia Laboratory, Wuhan, China
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Nan X, Yao X, Yang L, Cui Y. Lateral flow assay of pathogenic viruses and bacteria in healthcare. Analyst 2023; 148:4573-4590. [PMID: 37655501 DOI: 10.1039/d3an00719g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Healthcare-associated pathogenic viruses and bacteria can have a serious impact on human health and have attracted widespread global attention. The lateral flow assay is a unidirectional detection based on the binding of a target analyte and a bioreceptor on the device via lateral flow. With incredible advantages over traditional chromatographic methods, such as rapid detection, ease of manufacture and cost effectiveness, these test strips are increasingly considered the ideal form for point-of-care applications. This review explores lateral flow assays for pathogenic viruses and bacteria, with a particular focus on methodologies, device components, construction methods, and applications. We anticipate that this review could provide exciting opportunities for developing new lateral flow devices for pathogens and advance related healthcare applications.
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Affiliation(s)
- Xuanxu Nan
- School of Materials Science and Engineering, Peking University; First Hospital Interdisciplinary Research Center, Peking University, Beijing 100871, P.R. China.
| | - Xuesong Yao
- School of Materials Science and Engineering, Peking University; First Hospital Interdisciplinary Research Center, Peking University, Beijing 100871, P.R. China.
| | - Li Yang
- Peking University First Hospital; Peking University Institute of Nephrology, Beijing 100034, P. R. China.
| | - Yue Cui
- School of Materials Science and Engineering, Peking University; First Hospital Interdisciplinary Research Center, Peking University, Beijing 100871, P.R. China.
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Qian J, Fu L, Wu X, Wang Z, Wang H, Zeng Y, Cheng G, Deng F, Shen S. Developing and characterizing monoclonal antibodies of Guertu bandavirus nucleoprotein for developing methods of Guertu bandavirus and severe fever with thrombocytopenia syndrome virus detection. Braz J Microbiol 2023; 54:1433-1445. [PMID: 37225938 PMCID: PMC10485201 DOI: 10.1007/s42770-023-00982-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 04/17/2023] [Indexed: 05/26/2023] Open
Abstract
Belonging to genus Bandavirus in Phenuiviridae family, Guertu bandavirus (GTV) is a potential pathogen closely related to severe fever with thrombocytopenia syndrome virus (SFTSV) and heartland virus (HRTV) associated with human diseases. Although the medical significance of GTV is not clear, there was serological evidence suggesting past infection with this virus has occurred, indicating its potential threat to human health. So, it is important to prepare for detection of GTV infection so as to control virus transmission and promote disease diagnosis and treatment. This study is aimed at obtaining monoclonal antibodies (mAbs) against GTV nucleoprotein (NP) and evaluating their activities in recognizing viral antigens from genetic-related bandaviruses, SFTSV and HRTV. Eight mAbs were obtained and four of them (22G1, 25C2, 25E2, and 26F8) recognize linear epitopes of GTV NP. The four mAbs showed cross-reactivity to SFTSV but were unable to react with HRTV. Two fine epitopes were identified by the four mAbs, ENP1 (194YNSFRDPLHAAV205) and ENP2 (226GPDGLP231), which are highly conserved in the NPs of GTV and SFTSV but are distinct in HRTV NP. The features of epitopes, including their hydrophilicity, antibody accessibility, flexibility, antigenicity, and spatial locations, were predicted and analyzed, and their potential functional impacts on virus infection and replication and their use for virus detection were discussed. Our results promote the understanding of the molecular basis of GTV and SFTSV NP in inducing antibody responses. The NP-specific mAbs generated in this study are promising fundamental materials for developing viral antigen detection methods for GTV and SFTSV.
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Affiliation(s)
- Jin Qian
- Brain Science and Advanced Technology Institute, Wuhan University of Science and Technology, Wuhan, 430065, China
- Key Laboratory of Special Pathogens and Biosafety and National Virus Resource Center, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Liyan Fu
- Brain Science and Advanced Technology Institute, Wuhan University of Science and Technology, Wuhan, 430065, China
- Key Laboratory of Special Pathogens and Biosafety and National Virus Resource Center, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Xiaoli Wu
- Key Laboratory of Special Pathogens and Biosafety and National Virus Resource Center, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Zhiying Wang
- Key Laboratory of Special Pathogens and Biosafety and National Virus Resource Center, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Hualin Wang
- Key Laboratory of Special Pathogens and Biosafety and National Virus Resource Center, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Yan Zeng
- Brain Science and Advanced Technology Institute, Wuhan University of Science and Technology, Wuhan, 430065, China
| | - Guirong Cheng
- Brain Science and Advanced Technology Institute, Wuhan University of Science and Technology, Wuhan, 430065, China.
| | - Fei Deng
- Key Laboratory of Special Pathogens and Biosafety and National Virus Resource Center, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China.
| | - Shu Shen
- Key Laboratory of Special Pathogens and Biosafety and National Virus Resource Center, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China.
- Hubei Jiangxia Laboratory, Wuhan, 430200, China.
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Ai L, Wang W, Teng Z. Advancements in the Worldwide Detection of Severe Fever with Thrombocytopenia Syndrome Virus Infection from 2009 to 2023. China CDC Wkly 2023; 5:687-693. [PMID: 37593140 PMCID: PMC10427339 DOI: 10.46234/ccdcw2023.132] [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: 06/09/2023] [Accepted: 08/01/2023] [Indexed: 08/19/2023] Open
Abstract
Severe fever with thrombocytopenia syndrome (SFTS) is a growing concern as an emerging tick-borne infectious disease originating from the SFTS virus (SFTSV), a recent addition to the Phlebovirus genus under the family of bunyaviruses. SFTS is typically identified by symptoms such as fever, thrombocytopenia, leukopenia, and gastrointestinal problems, accompanied by a potentially high case fatality rate. Thus, early and accurate diagnosis is essential for effective treatment and disease management. This review delves into the existing methodologies for SFTS detection, including pathogenic, molecular, and immunological technologies.
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Affiliation(s)
- Lin Ai
- Institute of Microbiology Laboratory, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Wei Wang
- Institute of Microbiology Laboratory, Shanghai Institute of Preventive Medicine, Shanghai, China
| | - Zheng Teng
- Institute of Microbiology Laboratory, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
- Institute of Microbiology Laboratory, Shanghai Institute of Preventive Medicine, Shanghai, China
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Chen L, Chen T, Li R, Xu Y, Xiong Y. Recent Advances in the Study of the Immune Escape Mechanism of SFTSV and Its Therapeutic Agents. Viruses 2023; 15:v15040940. [PMID: 37112920 PMCID: PMC10142331 DOI: 10.3390/v15040940] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 04/04/2023] [Accepted: 04/05/2023] [Indexed: 04/29/2023] Open
Abstract
Sever fever with thrombocytopenia syndrome (SFTS) is a new infectious disease that has emerged in recent years and is widely distributed, highly contagious, and lethal, with a mortality rate of up to 30%, especially in people with immune system deficiencies and elderly patients. SFTS is an insidious, negative-stranded RNA virus that has a major public health impact worldwide. The development of a vaccine and the hunt for potent therapeutic drugs are crucial to the prevention and treatment of Bunyavirus infection because there is no particular treatment for SFTS. In this respect, investigating the mechanics of SFTS-host cell interactions is crucial for creating antiviral medications. In the present paper, we summarized the mechanism of interaction between SFTS and pattern recognition receptors, endogenous antiviral factors, inflammatory factors, and immune cells. Furthermore, we summarized the current therapeutic drugs used for SFTS treatment, aiming to provide a theoretical basis for the development of targets and drugs against SFTS.
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Affiliation(s)
- Lei Chen
- Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi 563000, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563000, China
| | - Tingting Chen
- Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi 563000, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563000, China
| | - Ruidong Li
- Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi 563000, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563000, China
| | - Yingshu Xu
- Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi 563000, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563000, China
| | - Yongai Xiong
- Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi 563000, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563000, China
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