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Guimarães JPT, Fogaça MBT, Moura RS, Mendonça M, Conceição FR, Gimaque JBL, de Almeida THP, Abrain C, Mourão MPG, Figueiredo LTM, Stefani MMA, Bührer-Sékula S. Hantavirus: Preliminary assessment of lateral flow immune assay prototypes to detect IgM and IgG antibodies. Diagn Microbiol Infect Dis 2024; 110:116521. [PMID: 39243495 DOI: 10.1016/j.diagmicrobio.2024.116521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 08/28/2024] [Accepted: 09/01/2024] [Indexed: 09/09/2024]
Abstract
Three lateral flow immunoassay prototypes developed to detect IgM, IgG and IgM/IgG antibodies against Hantavirus were evaluated. A total of 163 samples were tested: 10 from Hantavirus patients, 103 from related diseases, and 50 from healthy controls. The prototypes exhibited 100 % sensitivity, 97.5 % to 99.3 % specificity, indicating promising improved diagnosis.
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Affiliation(s)
| | | | | | - Marcelo Mendonça
- Universidade Federal do Agreste de Pernambuco, Garanhuns, PE, Brazil; Technology Development Center, Biotechnology Nucleus/Universidade Federal de Pelotas, Pelotas, RS, Brazil
| | - Fabricio Rochedo Conceição
- Technology Development Center, Biotechnology Nucleus/Universidade Federal de Pelotas, Pelotas, RS, Brazil
| | | | | | - Cláudia Abrain
- Hospital Foundation of Hematology and Hemotherapy of Amazon, Manaus, AM, Brazil
| | - Maria Paula Gomes Mourão
- Tropical Medicine Foundation Heitor Vieira Dourado, Manaus, AM, Brazil; Universidade do Estado do Amazonas, Manaus, AM, Brazil
| | | | | | - Samira Bührer-Sékula
- Institute of Tropical Pathology and Public Health /Universidade Federal de Goiás, Goiânia, GO, Brazil.
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2
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Zhang H, Liu H, Wei J, Dang Y, Wang Y, Yang Q, Zhang L, Ye C, Wang B, Jin X, Cheng L, Ma H, Dong Y, Li Y, Bai Y, Lv X, Lei Y, Xu Z, Ye W, Zhang F. Single dose recombinant VSV based vaccine elicits robust and durable neutralizing antibody against Hantaan virus. NPJ Vaccines 2024; 9:28. [PMID: 38341504 DOI: 10.1038/s41541-024-00814-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 01/11/2024] [Indexed: 02/12/2024] Open
Abstract
Hantaan virus (HTNV) is a pathogenic orthohantavirus prevalent in East Asia that is known to cause hemorrhagic fever with severe renal syndrome (HFRS), which has a high fatality rate. However, a Food and Drug Administration (FDA)-approved vaccine is not currently available against this virus. Although inactivated vaccines have been certified and used in endemic regions for decades, the neutralizing antibody (NAb) titer induced by inactivated vaccines is low and the immunization schedule is complicated, requiring at least three injections spanning approximately 6 months to 1 year. Replication-competent vesicular stomatitis virus (VSV)-based vaccines provide prolonged protection after a single injection. In this study, we successfully engineered the HTNV glycoprotein (GP) in the VSV genome by replacing the VSV-G open reading frame. The resulting recombinant (r) rVSV-HTNV-GP was rescued, and the immunogenicity of GP was similar to that of HTNV. BALB/c mice immunized with rVSV-HTNV-GP showed a high titer of NAb against HTNV after a single injection. Notably, the cross-reactive NAb response induced by rVSV-HTNV-GP against Seoul virus (an orthohantavirus) was higher than that induced by three sequential injections of inactivated vaccines. Upon challenge with HTNV, rVSV-HTNV-GP-immunized mice showed a profoundly reduced viral burden in multiple tissues, and inflammation in the lungs and liver was nearly undetectable. Moreover, a single injection of rVSV-HTNV-GP established a prolonged immunological memory status as the NAbs were sustained for over 1 year and provided long-term protection against HTNV infection. The findings of our study can support further development of an rVSV-HTNV-GP-based HTNV vaccine with a simplified immunization schedule.
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Affiliation(s)
- Hui Zhang
- Department of Microbiology, School of Preclinical Medicine, Airforce Medical University: Fourth Military Medical University, Xi' an, Shaanxi, China
| | - He Liu
- Department of Microbiology, School of Preclinical Medicine, Airforce Medical University: Fourth Military Medical University, Xi' an, Shaanxi, China
| | - Jing Wei
- Department of Microbiology, School of Preclinical Medicine, Airforce Medical University: Fourth Military Medical University, Xi' an, Shaanxi, China
- Center for Disease Control and Prevention of Shaanxi Province, Xi'an, Shaanxi, China
| | - Yamei Dang
- Department of Microbiology, School of Preclinical Medicine, Airforce Medical University: Fourth Military Medical University, Xi' an, Shaanxi, China
| | - Yuan Wang
- Department of Microbiology, School of Preclinical Medicine, Airforce Medical University: Fourth Military Medical University, Xi' an, Shaanxi, China
| | - Qiqi Yang
- Department of Microbiology, School of Preclinical Medicine, Airforce Medical University: Fourth Military Medical University, Xi' an, Shaanxi, China
| | - Liang Zhang
- Department of Microbiology, School of Preclinical Medicine, Airforce Medical University: Fourth Military Medical University, Xi' an, Shaanxi, China
| | - Chuantao Ye
- Department of Microbiology, School of Preclinical Medicine, Airforce Medical University: Fourth Military Medical University, Xi' an, Shaanxi, China
| | - Bin Wang
- Center of Clinical Aerospace Medicine, Airforce Medical University: Fourth Military Medical University, Xi' an, Shaanxi, China
| | - Xiaolei Jin
- Student Brigade, School of Preclinical Medicine, Airforce Medical University: Fourth Military Medical University, Xi' an, Shaanxi, China
| | - Linfeng Cheng
- Department of Microbiology, School of Preclinical Medicine, Airforce Medical University: Fourth Military Medical University, Xi' an, Shaanxi, China
| | - Hongwei Ma
- Department of Microbiology, School of Preclinical Medicine, Airforce Medical University: Fourth Military Medical University, Xi' an, Shaanxi, China
| | - Yangchao Dong
- Department of Microbiology, School of Preclinical Medicine, Airforce Medical University: Fourth Military Medical University, Xi' an, Shaanxi, China
| | - Yinghui Li
- Department of Microbiology, School of Preclinical Medicine, Airforce Medical University: Fourth Military Medical University, Xi' an, Shaanxi, China
| | - Yinlan Bai
- Department of Microbiology, School of Preclinical Medicine, Airforce Medical University: Fourth Military Medical University, Xi' an, Shaanxi, China
| | - Xin Lv
- Department of Microbiology, School of Preclinical Medicine, Airforce Medical University: Fourth Military Medical University, Xi' an, Shaanxi, China
| | - Yingfeng Lei
- Department of Microbiology, School of Preclinical Medicine, Airforce Medical University: Fourth Military Medical University, Xi' an, Shaanxi, China
| | - Zhikai Xu
- Department of Microbiology, School of Preclinical Medicine, Airforce Medical University: Fourth Military Medical University, Xi' an, Shaanxi, China.
| | - Wei Ye
- Department of Microbiology, School of Preclinical Medicine, Airforce Medical University: Fourth Military Medical University, Xi' an, Shaanxi, China.
| | - Fanglin Zhang
- Department of Microbiology, School of Preclinical Medicine, Airforce Medical University: Fourth Military Medical University, Xi' an, Shaanxi, China.
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3
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Li Z, Zhang H, Yu X, Zhang Y, Chen L. Construction of a Hantaan Virus Phage Antibody Library and Screening for Potential Neutralizing Activity. Viruses 2023; 15:v15051034. [PMID: 37243121 DOI: 10.3390/v15051034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/20/2023] [Accepted: 04/21/2023] [Indexed: 05/28/2023] Open
Abstract
China is one of the main epidemic areas for hemorrhagic fever with renal syndrome (HFRS). Currently, there is no human antibody specific to Hantaan virus (HTNV) for the emergency prevention and treatment of HFRS. To prepare human antibodies with neutralizing activity, we established an anti-HTNV phage antibody library using phage display technology by transforming peripheral blood mononuclear cells (PBMCs) of patients with HFRS into B lymphoblastoid cell lines (BLCLs) and extracting cDNA from BLCLs that secreted neutralizing antibodies. Based on the phage antibody library, we screened HTNV-specific Fab antibodies with neutralizing activities. Our study provides a potential way forward for the emergency prevention of HTNV and specific treatment of HFRS.
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Affiliation(s)
- Zhuo Li
- Department of Immunology, The Fourth Military Medical University, 169 Changle West Road, Xi'an 710032, China
- Department of Medical Laboratory Technology, Xi'an Health School, Xi'an 710054, China
| | - Huiyuan Zhang
- Department of Immunology, The Fourth Military Medical University, 169 Changle West Road, Xi'an 710032, China
- Department of Immunology, Medicine School, Yan'an University, Yan'an 716000, China
| | - Xiaxia Yu
- Department of Immunology, The Fourth Military Medical University, 169 Changle West Road, Xi'an 710032, China
- Department of Immunology, Medicine School, Yan'an University, Yan'an 716000, China
| | - Yusi Zhang
- Department of Immunology, The Fourth Military Medical University, 169 Changle West Road, Xi'an 710032, China
| | - Lihua Chen
- Department of Immunology, The Fourth Military Medical University, 169 Changle West Road, Xi'an 710032, China
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Ning T, Huang W, Min L, Yang Y, Liu S, Xu J, Zhang N, Xie SA, Zhu S, Wang Y. Pseudotyped Viruses for Orthohantavirus. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2023; 1407:229-252. [PMID: 36920700 DOI: 10.1007/978-981-99-0113-5_12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
Orthohantaviruses, members of the Orthohantavirus genus of Hantaviridae family of the Bunyavirales order, are enveloped, negative-sense, single-stranded, tripartite RNA viruses. They are emerging zoonotic pathogens carried by small mammals including rodents, moles, shrews, and bats and are the etiologic agents of hemorrhagic fever with renal syndrome (HFRS) and hantavirus cardiopulmonary syndrome (HCPS) among humans. With the characteristics of low biological risk but strong operability, a variety of pseudotyped viruses have been constructed as alternatives to authentic orthohantaviruses to help delineate the roles of host factors in viral entry and other virus-host interactions, to assist in deciphering mechanisms of immune response and correlates of protection, to enhance our understanding of viral antigenic property, to characterize viral entry inhibitors, and to be developed as vaccines. In this chapter, we will discuss the general property of orthohantavirus, construction of pseudotyped orthohantaviruses based on different packaging systems, and their current applications.
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Affiliation(s)
- Tingting Ning
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Digestive Disease Center, Beijing Key Laboratory for Precancerous Lesion of Digestive Disease, Beijing, China
| | - Weijin Huang
- Division of HIV/AIDS and Sexually Transmitted Virus Vaccines, National Institutes for Food and Drug Control (NIFDC), Beijing, China
| | - Li Min
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Digestive Disease Center, Beijing Key Laboratory for Precancerous Lesion of Digestive Disease, Beijing, China
| | - Yi Yang
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Digestive Disease Center, Beijing Key Laboratory for Precancerous Lesion of Digestive Disease, Beijing, China
| | - Si Liu
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Digestive Disease Center, Beijing Key Laboratory for Precancerous Lesion of Digestive Disease, Beijing, China
| | - Junxuan Xu
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Digestive Disease Center, Beijing Key Laboratory for Precancerous Lesion of Digestive Disease, Beijing, China
| | - Nan Zhang
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Digestive Disease Center, Beijing Key Laboratory for Precancerous Lesion of Digestive Disease, Beijing, China
| | - Si-An Xie
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Digestive Disease Center, Beijing Key Laboratory for Precancerous Lesion of Digestive Disease, Beijing, China
| | - Shengtao Zhu
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Digestive Disease Center, Beijing Key Laboratory for Precancerous Lesion of Digestive Disease, Beijing, China.
| | - Youchun Wang
- Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China. .,Institute of Medical Biology, Chinese Academy of Medicine Sciences & Peking Union Medical College, Kunming, China.
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Fine mapping of the antigenic epitopes of the Gc protein of Guertu virus. PLoS One 2022; 17:e0271878. [PMID: 35881569 PMCID: PMC9321374 DOI: 10.1371/journal.pone.0271878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 07/08/2022] [Indexed: 11/19/2022] Open
Abstract
Guertu virus (GTV), a newly discovered member of the genus Banyangvirus in the family Phenuiviridae, poses a potential health threat to humans and animals. The viral glycoprotein (GP) binds to host cell receptors to induce a neutralizing immune response in the host. Therefore, identification of the B-cell epitopes (BCEs) in the immunodominant region of the GTV Gc protein is important for the elucidation of the virus–host cell interactions and the development of GTV epitope assays and vaccines. In this study, an improved overlapping biosynthetic peptide method and rabbit anti-GTV Gc polyclonal antibodies were used for fine mapping of the minimal motifs of linear BCEs of the GTV Gc protein. Thirteen BCE motifs were identified from eleven positive 16mer-peptides, namely EGc1 (19KVCATTGRA27), EGc2 (58KKINLKCKK66), EGc3 (68SSYYVPDA75), EGc4 (75ARSRCTSVRR84), EGc5 (79CTSVRRCRWA88), EGc6 (90DCQSGCPS97), EGc7 (96PSHFTSNS103), EGc8 (115AGLGFSG121), EGc9 (148ENPHGVI154), EGc10 (179KVFHPMS185), EGc11 (230QAGMGVVG237), EGc12 (303RSHDSQGKIS312), and EGc13 (430DIPRFV435). Of these, 7 could be recognized by GTV IgG-positive sheep sera. Three-dimensional structural analysis revealed that all 13 BCEs were present on the surface of the Gc protein. Sequence alignment of the 13 BCEs against homologous proteins from 10 closely related strains of severe fever with thrombocytopenia syndrome virus from different geographical regions revealed that the amino acid sequences of EGc4, EGc5, EGc8, EGc11, and EGc12 were highly conserved, with 100% similarity. The remaining 8 epitopes (EGc1, EGc2, EGc3, EGc6, EGc7, EGc9, EGc10, and EGc13) showed high sequence similarity in the range of 71.43%–87.50%. These 13 BCEs of the GTV Gc protein provide a molecular foundation for future studies of the immunological properties of GTV glycoproteins and the development of GTV multi-epitope assays and vaccines.
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Sun B, Zhang J, Wang J, Liu Y, Sun H, Lu Z, Chen L, Ding X, Pan J, Hu C, Yang S, Jiang D, Yang K. Comparative Immunoreactivity Analyses of Hantaan Virus Glycoprotein-Derived MHC-I Epitopes in Vaccination. Vaccines (Basel) 2022; 10:564. [PMID: 35455313 PMCID: PMC9030823 DOI: 10.3390/vaccines10040564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 03/02/2022] [Accepted: 03/07/2022] [Indexed: 11/25/2022] Open
Abstract
MHC-I antigen processes and presentation trigger host-specific anti-viral cellular responses during infection, in which epitope-recognizing cytotoxic T lymphocytes eliminate infected cells and contribute to viral clearance through a cytolytic killing effect. In this study, Hantaan virus (HTNV) GP-derived 9-mer dominant epitopes were obtained with high affinity to major HLA-I and H-2 superfamilies. Further immunogenicity and conservation analyses selected 11 promising candidates, and molecule docking (MD) was then simulated with the corresponding MHC-I alleles. Two-way hierarchical clustering revealed the interactions between GP peptides and MHC-I haplotypes. Briefly, epitope hotspots sharing good affinity to a wide spectrum of MHC-I molecules highlighted the biomedical practice for vaccination, and haplotype clusters represented the similarities among individuals during T-cell response establishment. Cross-validation proved the patterns observed through both MD simulation and public data integration. Lastly, 148 HTNV variants yielded six types of major amino acid residue replacements involving four in nine hotspots, which minimally influenced the general potential of MHC-I superfamily presentation. Altogether, our work comprehensively evaluates the pan-MHC-I immunoreactivity of HTNV GP through a state-of-the-art workflow in light of comparative immunology, acknowledges present discoveries, and offers guidance for ongoing HTNV vaccine pursuit.
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Affiliation(s)
- Baozeng Sun
- Department of Immunology, Basic Medicine School, Air-Force Medical University (the Fourth Military Medical University), Xi’an 710032, China; (B.S.); (J.Z.); (J.W.); (Y.L.); (H.S.); (Z.L.); (L.C.); (X.D.); (J.P.); (C.H.); (S.Y.)
| | - Junqi Zhang
- Department of Immunology, Basic Medicine School, Air-Force Medical University (the Fourth Military Medical University), Xi’an 710032, China; (B.S.); (J.Z.); (J.W.); (Y.L.); (H.S.); (Z.L.); (L.C.); (X.D.); (J.P.); (C.H.); (S.Y.)
| | - Jiawei Wang
- Department of Immunology, Basic Medicine School, Air-Force Medical University (the Fourth Military Medical University), Xi’an 710032, China; (B.S.); (J.Z.); (J.W.); (Y.L.); (H.S.); (Z.L.); (L.C.); (X.D.); (J.P.); (C.H.); (S.Y.)
| | - Yang Liu
- Department of Immunology, Basic Medicine School, Air-Force Medical University (the Fourth Military Medical University), Xi’an 710032, China; (B.S.); (J.Z.); (J.W.); (Y.L.); (H.S.); (Z.L.); (L.C.); (X.D.); (J.P.); (C.H.); (S.Y.)
- Shaanxi Provincial Center for Disease Control and Prevention, Xi’an 710054, China
| | - Hao Sun
- Department of Immunology, Basic Medicine School, Air-Force Medical University (the Fourth Military Medical University), Xi’an 710032, China; (B.S.); (J.Z.); (J.W.); (Y.L.); (H.S.); (Z.L.); (L.C.); (X.D.); (J.P.); (C.H.); (S.Y.)
- Tangshan Sannvhe Airport, Tangshan 063000, China
| | - Zhenhua Lu
- Department of Immunology, Basic Medicine School, Air-Force Medical University (the Fourth Military Medical University), Xi’an 710032, China; (B.S.); (J.Z.); (J.W.); (Y.L.); (H.S.); (Z.L.); (L.C.); (X.D.); (J.P.); (C.H.); (S.Y.)
- Department of Epidemiology, Public Health School, Air-Force Medical University (the Fourth Military Medical University), Xi’an 710032, China
| | - Longyu Chen
- Department of Immunology, Basic Medicine School, Air-Force Medical University (the Fourth Military Medical University), Xi’an 710032, China; (B.S.); (J.Z.); (J.W.); (Y.L.); (H.S.); (Z.L.); (L.C.); (X.D.); (J.P.); (C.H.); (S.Y.)
| | - Xushen Ding
- Department of Immunology, Basic Medicine School, Air-Force Medical University (the Fourth Military Medical University), Xi’an 710032, China; (B.S.); (J.Z.); (J.W.); (Y.L.); (H.S.); (Z.L.); (L.C.); (X.D.); (J.P.); (C.H.); (S.Y.)
| | - Jingyu Pan
- Department of Immunology, Basic Medicine School, Air-Force Medical University (the Fourth Military Medical University), Xi’an 710032, China; (B.S.); (J.Z.); (J.W.); (Y.L.); (H.S.); (Z.L.); (L.C.); (X.D.); (J.P.); (C.H.); (S.Y.)
| | - Chenchen Hu
- Department of Immunology, Basic Medicine School, Air-Force Medical University (the Fourth Military Medical University), Xi’an 710032, China; (B.S.); (J.Z.); (J.W.); (Y.L.); (H.S.); (Z.L.); (L.C.); (X.D.); (J.P.); (C.H.); (S.Y.)
| | - Shuya Yang
- Department of Immunology, Basic Medicine School, Air-Force Medical University (the Fourth Military Medical University), Xi’an 710032, China; (B.S.); (J.Z.); (J.W.); (Y.L.); (H.S.); (Z.L.); (L.C.); (X.D.); (J.P.); (C.H.); (S.Y.)
| | - Dongbo Jiang
- Department of Immunology, Basic Medicine School, Air-Force Medical University (the Fourth Military Medical University), Xi’an 710032, China; (B.S.); (J.Z.); (J.W.); (Y.L.); (H.S.); (Z.L.); (L.C.); (X.D.); (J.P.); (C.H.); (S.Y.)
| | - Kun Yang
- Department of Immunology, Basic Medicine School, Air-Force Medical University (the Fourth Military Medical University), Xi’an 710032, China; (B.S.); (J.Z.); (J.W.); (Y.L.); (H.S.); (Z.L.); (L.C.); (X.D.); (J.P.); (C.H.); (S.Y.)
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Mittler E, Dieterle ME, Kleinfelter LM, Slough MM, Chandran K, Jangra RK. Hantavirus entry: Perspectives and recent advances. Adv Virus Res 2019; 104:185-224. [PMID: 31439149 DOI: 10.1016/bs.aivir.2019.07.002] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Hantaviruses are important zoonotic pathogens of public health importance that are found on all continents except Antarctica and are associated with hemorrhagic fever with renal syndrome (HFRS) in the Old World and hantavirus pulmonary syndrome (HPS) in the New World. Despite the significant disease burden they cause, no FDA-approved specific therapeutics or vaccines exist against these lethal viruses. The lack of available interventions is largely due to an incomplete understanding of hantavirus pathogenesis and molecular mechanisms of virus replication, including cellular entry. Hantavirus Gn/Gc glycoproteins are the only viral proteins exposed on the surface of virions and are necessary and sufficient to orchestrate virus attachment and entry. In vitro studies have implicated integrins (β1-3), DAF/CD55, and gC1qR as candidate receptors that mediate viral attachment for both Old World and New World hantaviruses. Recently, protocadherin-1 (PCDH1) was demonstrated as a requirement for cellular attachment and entry of New World hantaviruses in vitro and lethal HPS in vivo, making it the first clade-specific host factor to be identified. Attachment of hantavirus particles to cellular receptors induces their internalization by clathrin-mediated, dynamin-independent, or macropinocytosis-like mechanisms, followed by particle trafficking to an endosomal compartment where the fusion of viral and endosomal membranes can occur. Following membrane fusion, which requires cholesterol and acid pH, viral nucleocapsids escape into the cytoplasm and launch genome replication. In this review, we discuss the current mechanistic understanding of hantavirus entry, highlight gaps in our existing knowledge, and suggest areas for future inquiry.
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Affiliation(s)
- Eva Mittler
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, United States
| | - Maria Eugenia Dieterle
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, United States
| | - Lara M Kleinfelter
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, United States
| | - Megan M Slough
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, United States
| | - Kartik Chandran
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, United States.
| | - Rohit K Jangra
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, United States.
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Two Point Mutations in Old World Hantavirus Glycoproteins Afford the Generation of Highly Infectious Recombinant Vesicular Stomatitis Virus Vectors. mBio 2019; 10:mBio.02372-18. [PMID: 30622188 PMCID: PMC6325249 DOI: 10.1128/mbio.02372-18] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Human hantavirus infections cause hantavirus pulmonary syndrome in the Americas and hemorrhagic fever with renal syndrome (HFRS) in Eurasia. No FDA-approved vaccines and therapeutics exist for these deadly viruses, and their development is limited by the requirement for high biocontainment. In this study, we identified and characterized key amino acid changes in the surface glycoproteins of HFRS-causing Hantaan virus that enhance their incorporation into recombinant vesicular stomatitis virus (rVSV) particles. The replication-competent rVSVs encoding Hantaan virus and Dobrava-Belgrade virus glycoproteins described in this work provide a powerful and facile system to study hantavirus entry under lower biocontainment and may have utility as hantavirus vaccines. Rodent-to-human transmission of hantaviruses is associated with severe disease. Currently, no FDA-approved, specific antivirals or vaccines are available, and the requirement for high biocontainment (biosafety level 3 [BSL-3]) laboratories limits hantavirus research. To study hantavirus entry in a BSL-2 laboratory, we set out to generate replication-competent, recombinant vesicular stomatitis viruses (rVSVs) bearing the Gn and Gc (Gn/Gc) entry glycoproteins. As previously reported, rVSVs bearing New World hantavirus Gn/Gc were readily rescued from cDNAs, but their counterparts bearing Gn/Gc from the Old World hantaviruses, Hantaan virus (HTNV) or Dobrava-Belgrade virus (DOBV), were refractory to rescue. However, serial passage of the rescued rVSV-HTNV Gn/Gc virus markedly increased its infectivity and capacity for cell-to-cell spread. This gain in viral fitness was associated with the acquisition of two point mutations: I532K in the cytoplasmic tail of Gn and S1094L in the membrane-proximal stem of Gc. Follow-up experiments with rVSVs and single-cycle VSV pseudotypes confirmed these results. Mechanistic studies revealed that both mutations were determinative and contributed to viral infectivity in a synergistic manner. Our findings indicate that the primary mode of action of these mutations is to relocalize HTNV Gn/Gc from the Golgi complex to the cell surface, thereby affording significantly enhanced Gn/Gc incorporation into budding VSV particles. Finally, I532K/S1094L mutations in DOBV Gn/Gc permitted the rescue of rVSV-DOBV Gn/Gc, demonstrating that incorporation of cognate mutations into other hantaviral Gn/Gc proteins could afford the generation of rVSVs that are otherwise challenging to rescue. The robust replication-competent rVSVs, bearing HTNV and DOBV Gn/Gc, reported herein may also have utility as vaccines.
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Fine mapping epitope on glycoprotein-Gn from Crimean-Congo hemorrhagic fever virus. Comp Immunol Microbiol Infect Dis 2018; 59:24-31. [DOI: 10.1016/j.cimid.2018.09.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 08/02/2018] [Accepted: 09/03/2018] [Indexed: 01/28/2023]
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10
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Tang K, Cheng L, Zhang C, Zhang Y, Zheng X, Zhang Y, Zhuang R, Jin B, Zhang F, Ma Y. Novel Identified HLA-A*0201-Restricted Hantaan Virus Glycoprotein Cytotoxic T-Cell Epitopes Could Effectively Induce Protective Responses in HLA-A2.1/K b Transgenic Mice May Associate with the Severity of Hemorrhagic Fever with Renal Syndrome. Front Immunol 2017; 8:1797. [PMID: 29312318 PMCID: PMC5732971 DOI: 10.3389/fimmu.2017.01797] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 11/30/2017] [Indexed: 12/15/2022] Open
Abstract
Hantaan virus (HTNV) infections can cause severe hemorrhagic fever with renal syndrome (HFRS) in humans, which is associated with high fatality rates. Cytotoxic T cell (CTL) responses contribute to virus elimination; however, to date, HLA class I allele-restricted HTNV glycoprotein (GP) epitopes recognized by CTLs have not been reported, limiting our understanding of CTL responses against HTNV infection in humans. In this study, 34 HTNV GP nine-mer epitopes that may bind to HLA-A*0201 molecules were predicted using the BIMAS and SYFPEITHI database. Seven of the epitopes were demonstrated to bind to HLA-A*0201 molecules with high affinity via the T2 cell binding assay and were successfully used to synthesize peptide/HLA-A*0201 tetramers. The results of tetramer staining showed that the frequencies of each epitope-specific CTL were higher in patients with milder HFRS, which indicated that the epitopes may induce protective CTL responses after HTNV infection. IFN-γ-enzyme-linked immunospot analysis further confirmed the immunoreactivity of epitopes by eliciting epitope-specific IFN-γ-producing CTL responses. In an HTNV challenge trial, significant inhibition of HTNV replication characterized by lower levels of antigens and RNA loads was observed in major target organs (liver, spleen, and kidneys) of HLA-A2.1/Kb transgenic mice pre-vaccinated with nonapeptides VV9 (aa8–aa16, VMASLVWPV), SL9 (aa996–aa1004, SLTECPTFL) and LL9 (aa358–aa366, LIWTGMIDL). Importantly, LL9 exhibited the best ability to induce protective CTL responses and showed a prominent effect on the kidneys, potentially preventing kidney injury after HTNV infection. Taken together, our results highlight that HTNV GP-derived HLA-A*0201-restricted epitopes could elicit protective CTL responses against the virus, and that epitope LL9 functions as an immunodominant protective epitope that may advance the design of safe and effective CTL-based HTNV peptide vaccines for humans.
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Affiliation(s)
- Kang Tang
- Department of Immunology, The Fourth Military Medical University, Xi'an, China
| | - Linfeng Cheng
- Department of Microbiology, The Fourth Military Medical University, Xi'an, China
| | - Chunmei Zhang
- Department of Immunology, The Fourth Military Medical University, Xi'an, China
| | - Yusi Zhang
- Department of Immunology, The Fourth Military Medical University, Xi'an, China
| | - Xuyang Zheng
- Department of Infectious Diseases, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Yun Zhang
- Department of Immunology, The Fourth Military Medical University, Xi'an, China
| | - Ran Zhuang
- Department of Immunology, The Fourth Military Medical University, Xi'an, China
| | - Boquan Jin
- Department of Immunology, The Fourth Military Medical University, Xi'an, China
| | - Fanglin Zhang
- Department of Microbiology, The Fourth Military Medical University, Xi'an, China
| | - Ying Ma
- Department of Immunology, The Fourth Military Medical University, Xi'an, China
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Ma RX, Cheng LF, Ying QK, Liu RR, Ma TJ, Zhang XX, Liu ZY, Zhang L, Ye W, Zhang FL, Xu ZK, Wang F, Wu XA. Screening and Identification of an H-2K b-Restricted CTL Epitope within the Glycoprotein of Hantaan Virus. Front Cell Infect Microbiol 2016; 6:151. [PMID: 27933274 PMCID: PMC5122572 DOI: 10.3389/fcimb.2016.00151] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2016] [Accepted: 10/31/2016] [Indexed: 12/12/2022] Open
Abstract
The cytotoxic T lymphocyte (CTL) response plays a key role in controlling viral infection, but only a few epitopes within the HTNV glycoprotein (GP) that are recognized by CTLs have been reported. In this study, we identified one murine HTNV GP-derived H2-Kb-restricted CTL epitope in C57BL/6 mice, which could be used to design preclinical studies of vaccines for HTNV infection. First, 15 8-mer peptides were selected from the HTNV GP amino acid sequence based on a percentile rank of <=1% by IEDB which is the most comprehensive collection of epitope prediction and analysis tool. A lower percentile rank indicates higher affinity and higher immune response. In the case of the consensus method, we also evaluated the binding score of peptide-binding affinity by the BIMAS software to confirm that all peptides were able to bind H2-Kb. Second, one novel GP-derived CTL epitope, GP6 aa456-aa463 (ITSLFSLL), was identified in the splenocytes of HTNV-infected mice using the IFN-γ ELISPOT assay. Third, a single peptide vaccine was administered to C57BL/6 mice to evaluate the immunogenic potential of the identified peptides. ELISPOT and cell-mediated cytotoxicity assays showed that this peptide vaccine induced a strong IFN-γ response and potent cytotoxicity in immunized mice. Last, we demonstrated that the peptide-vaccinated mice had partial protection from challenge with HTNV. In conclusion, we identified an H2-Kb-restricted CTL epitope with involvement in the host immune response to HTNV infection.
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Affiliation(s)
- Rui-Xue Ma
- Department of Microbiology, School of Basic Medicine, Fourth Military Medical University Xi'an, China
| | - Lin-Feng Cheng
- Department of Microbiology, School of Basic Medicine, Fourth Military Medical University Xi'an, China
| | - Qi-Kang Ying
- Department of Microbiology, School of Basic Medicine, Fourth Military Medical University Xi'an, China
| | - Rong-Rong Liu
- Department of Microbiology, School of Basic Medicine, Fourth Military Medical University Xi'an, China
| | - Tie-Jun Ma
- Department of Microbiology, School of Basic Medicine, Fourth Military Medical University Xi'an, China
| | - Xiao-Xiao Zhang
- Department of Microbiology, School of Basic Medicine, Fourth Military Medical University Xi'an, China
| | - Zi-Yu Liu
- Department of Microbiology, School of Basic Medicine, Fourth Military Medical University Xi'an, China
| | - Liang Zhang
- Department of Microbiology, School of Basic Medicine, Fourth Military Medical University Xi'an, China
| | - Wei Ye
- Department of Microbiology, School of Basic Medicine, Fourth Military Medical University Xi'an, China
| | - Fang-Lin Zhang
- Department of Microbiology, School of Basic Medicine, Fourth Military Medical University Xi'an, China
| | - Zhi-Kai Xu
- Department of Microbiology, School of Basic Medicine, Fourth Military Medical University Xi'an, China
| | - Fang Wang
- Department of Microbiology, School of Basic Medicine, Fourth Military Medical University Xi'an, China
| | - Xing-An Wu
- Department of Microbiology, School of Basic Medicine, Fourth Military Medical University Xi'an, China
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Animal Models for the Study of Rodent-Borne Hemorrhagic Fever Viruses: Arenaviruses and Hantaviruses. BIOMED RESEARCH INTERNATIONAL 2015; 2015:793257. [PMID: 26266264 PMCID: PMC4523679 DOI: 10.1155/2015/793257] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Accepted: 06/14/2015] [Indexed: 11/20/2022]
Abstract
Human pathogenic hantaviruses and arenaviruses are maintained in nature by persistent infection of rodent carrier populations. Several members of these virus groups can cause significant disease in humans that is generically termed viral hemorrhagic fever (HF) and is characterized as a febrile illness with an increased propensity to cause acute inflammation. Human interaction with rodent carrier populations leads to infection. Arenaviruses are also viewed as potential biological weapons threat agents. There is an increased interest in studying these viruses in animal models to gain a deeper understating not only of viral pathogenesis, but also for the evaluation of medical countermeasures (MCM) to mitigate disease threats. In this review, we examine current knowledge regarding animal models employed in the study of these viruses. We include analysis of infection models in natural reservoirs and also discuss the impact of strain heterogeneity on the susceptibility of animals to infection. This information should provide a comprehensive reference for those interested in the study of arenaviruses and hantaviruses not only for MCM development but also in the study of viral pathogenesis and the biology of these viruses in their natural reservoirs.
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Pádua MD, Souza WMD, Lauretti F, Figueiredo LTM. Development of a novel plaque reduction neutralisation test for hantavirus infection. Mem Inst Oswaldo Cruz 2015; 110:624-8. [PMID: 26132430 PMCID: PMC4569825 DOI: 10.1590/0074-02760150102] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2015] [Accepted: 06/03/2015] [Indexed: 01/19/2023] Open
Abstract
In the Americas, hantaviruses cause severe cardiopulmonary syndrome (HCPS) with a
high fatality rate. Hantavirus infection is commonly diagnosed using serologic
techniques and reverse transcription-polymerase chain reaction. This paper presents a
novel plaque reduction neutralisation test (PRNT) for detecting antibodies to
Brazilian hantavirus. Using PRNT, plaque detection was enhanced by adding 0.6% of
dimethyl sulfoxide into the overlay culture medium of the infected cells. This
procedure facilitated clear visualisation of small plaques under the microscope and
provided for easy and accurate plaque counting. The sera from 37 HCPS patients from
the city of Ribeirão Preto, Brazil was evaluated for the Rio Mamoré virus (RIOMV)
using PRNT. Six samples exhibited neutralising antibodies; these antibodies exhibited
a low titre. The low level of seropositive samples may be due to fewer
cross-reactions between two different hantavirus species; the patients were likely
infected by Araraquara virus (a virus that has not been isolated) and RIOMV was used
for the test. This assay offers a new approach to evaluating and measuring
neutralising antibodies produced during hantavirus infections and it can be adapted
to other hantaviruses, including viruses that will be isolated in the future.
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Affiliation(s)
- Michelly de Pádua
- Centro de Pesquisa em Virologia, Faculdade de Medicina de Riberão Preto, Universidade de São Paulo, Ribeirão Preto, SP, BR
| | - William Marciel de Souza
- Centro de Pesquisa em Virologia, Faculdade de Medicina de Riberão Preto, Universidade de São Paulo, Ribeirão Preto, SP, BR
| | - Flávio Lauretti
- Centro de Pesquisa em Virologia, Faculdade de Medicina de Riberão Preto, Universidade de São Paulo, Ribeirão Preto, SP, BR
| | - Luiz Tadeu Moraes Figueiredo
- Centro de Pesquisa em Virologia, Faculdade de Medicina de Riberão Preto, Universidade de São Paulo, Ribeirão Preto, SP, BR
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Ma Y, Yuan B, Zhuang R, Zhang Y, Liu B, Zhang C, Zhang Y, Yu H, Yi J, Yang A, Jin B. Hantaan virus infection induces both Th1 and ThGranzyme B+ cell immune responses that associated with viral control and clinical outcome in humans. PLoS Pathog 2015; 11:e1004788. [PMID: 25836633 PMCID: PMC4383613 DOI: 10.1371/journal.ppat.1004788] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Accepted: 03/05/2015] [Indexed: 01/22/2023] Open
Abstract
Hantaviruses infection causing severe emerging diseases with high mortality rates in humans has become public health concern globally. The potential roles of CD4(+)T cells in viral control have been extensively studied. However, the contribution of CD4(+)T cells to the host response against Hantaan virus (HTNV) infection remains unclear. Here, based on the T-cell epitopes mapped on HTNV glycoprotein, we studied the effects and characteristics of CD4(+)T-cell responses in determining the outcome of hemorrhagic fever with renal syndrome. A total of 79 novel 15-mer T-cell epitopes on the HTNV glycoprotein were identified, among which 20 peptides were dominant target epitopes. Importantly, we showed the presence of both effective Th1 responses with polyfunctional cytokine secretion and ThGranzyme B(+) cell responses with cytotoxic mediators production against HTNV infection. The HTNV glycoprotein-specific CD4(+)T-cell responses inversely correlated with the plasma HTNV RNA load in patients. Individuals with milder disease outcomes showed broader epitopes targeted and stronger CD4(+)T-cell responses against HTNV glycoproteins compared with more severe patients. The CD4(+)T cells characterized by broader antigenic repertoire, stronger polyfunctional responses, better expansion capacity and highly differentiated effector memory phenotype(CD27-CD28-CCR7-CD45RA-CD127(hi)) would elicit greater defense against HTNV infection and lead to much milder outcome of the disease. The host defense mediated by CD4(+)T cells may through the inducing antiviral condition of the host cells and cytotoxic effect of ThGranzyme B+ cells. Thus, these findings highlight the efforts of CD4(+)T-cell immunity to HTNV control and provide crucial information to better understand the immune defense against HTNV infection.
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Affiliation(s)
- Ying Ma
- Department of Immunology, the Fourth Military Medical University, Xi’an, China
- * E-mail:
| | - Bin Yuan
- Institute of Orthopaedics of Xijing Hospital, the Fourth Military Medical University, Xi’an, China
| | - Ran Zhuang
- Department of Immunology, the Fourth Military Medical University, Xi’an, China
| | - Yusi Zhang
- Department of Immunology, the Fourth Military Medical University, Xi’an, China
| | - Bei Liu
- Department of Immunology, the Fourth Military Medical University, Xi’an, China
| | - Chunmei Zhang
- Department of Immunology, the Fourth Military Medical University, Xi’an, China
| | - Yun Zhang
- Department of Immunology, the Fourth Military Medical University, Xi’an, China
| | - Haitao Yu
- Department of Infectious Diseases of Tangdu Hospital, the Fourth Military Medical University, Xi’an, China
| | - Jing Yi
- Department of Immunology, the Fourth Military Medical University, Xi’an, China
| | - Angang Yang
- Department of Immunology, the Fourth Military Medical University, Xi’an, China
| | - Boquan Jin
- Department of Immunology, the Fourth Military Medical University, Xi’an, China
- * E-mail:
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15
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Ye W, Lei Y, Yu M, Xu Y, Cao M, Yu L, Zhang L, Li P, Bai W, Xu Z, Zhang F. NLRP3 inflammasome is responsible for Hantavirus inducing interleukin-1β in THP-1 cells. Int J Mol Med 2015; 35:1633-40. [PMID: 25847326 DOI: 10.3892/ijmm.2015.2162] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Accepted: 03/18/2015] [Indexed: 11/05/2022] Open
Abstract
Persistent high fever is one typical clinical symptom of hemorrhagic fever with renal syndrome (HFRS) and circulating interleukin-1β (IL-1β) is elevated throughout HFRS. The mechanisms responsible for viral induction of IL-1β secretion are unknown. In the present study, Hantaan virus (HTNV) induced the secretion of IL-1β in the human monocytic cell line THP-1. Induction of IL-1β by HTNV relies on the activation of caspase-1. Small hairpin RNA knockdown in HTNV-infected THP-1 cells indicated that nucleotide-binding domain, leucine-rich repeat containing protein 3 (NLRP3) recruits the adaptor apoptosis-associated speck-like protein and caspase-1 to form an NLRP3 inflammasome complex, crucial for the induction of IL-1β. In HTNV-infected THP-1 cells, reactive oxygen species release, but not extracellular adenosine triphosphate, was crucial for IL-1β production. In conclusion, Hantavirus induces the formation of the NLRP3 inflammasome in THP-1 cells and this may be responsible for the elevated IL-1β levels in HFRS patients.
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Affiliation(s)
- Wei Ye
- Department of Microbiology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Yingfeng Lei
- Department of Microbiology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Mengmeng Yu
- Health Drug and Instrument Control, General Logistics Department of the Ministry, Beijing 100071, P.R. China
| | - Yongni Xu
- Department of Microbiology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Mengyuan Cao
- Department of Microbiology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Lan Yu
- Department of Microbiology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Liang Zhang
- Department of Microbiology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Puyuan Li
- Department of Microbiology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Wentao Bai
- Department of Minimally Invasive Surgery, General Surgery Center, General Hospital of Chengdu Military Region, Chengdu, Sichuan 610083, P.R. China
| | - Zhikai Xu
- Department of Microbiology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Fanglin Zhang
- Department of Microbiology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
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Figueiredo LTM, Souza WMD, Ferrés M, Enria DA. Hantaviruses and cardiopulmonary syndrome in South America. Virus Res 2014; 187:43-54. [DOI: 10.1016/j.virusres.2014.01.015] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Accepted: 01/15/2014] [Indexed: 12/12/2022]
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