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Park JY, Hewawaduge C, Sivasankar C, Lloren KKS, Oh B, So MY, Lee JH. An mRNA-Based Multiple Antigenic Gene Expression System Delivered by Engineered Salmonella for Severe Fever with Thrombocytopenia Syndrome and Assessment of Its Immunogenicity and Protection Using a Human DC-SIGN-Transduced Mouse Model. Pharmaceutics 2023; 15:pharmaceutics15051339. [PMID: 37242581 DOI: 10.3390/pharmaceutics15051339] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 04/14/2023] [Accepted: 04/24/2023] [Indexed: 05/28/2023] Open
Abstract
Currently, there are no commercial vaccines or therapeutics against severe fever with thrombocytopenia syndrome (SFTS) virus. This study explored an engineered Salmonella as a vaccine carrier to deliver a eukaryotic self-mRNA replicating vector, pJHL204. This vector expresses multiple SFTS virus antigenic genes for the nucleocapsid protein (NP), glycoprotein precursor (Gn/Gc), and nonstructural protein (NS) to induce host immune responses. The engineered constructs were designed and validated through 3D structure modeling. Western blot and qRT-PCR analyses of transformed HEK293T cells confirmed the delivery and expression of the vaccine antigens. Significantly, mice immunized with these constructs demonstrated a cell-mediated and humoral response as balanced Th1/Th2 immunity. The JOL2424 and JOL2425 delivering NP and Gn/Gc generated strong immunoglobulin IgG and IgM antibodies and high neutralizing titers. To further examine the immunogenicity and protection, we utilized a human DC-SIGN receptor transduced mouse model for SFTS virus infection by an adeno-associated viral vector system. Among the SFTSV antigen constructs, the construct with full-length NP and Gn/Gc and the construct with NP and selected Gn/Gc epitopes induced robust cellular and humoral immune responses. These were followed by adequate protection based on viral titer reduction and reduced histopathological lesions in the spleen and liver. In conclusion, these data indicate that recombinant attenuated Salmonella JOL2424 and JOL2425 delivering NP and Gn/Gc antigens of SFTSV are promising vaccine candidates that induce strong humoral and cellular immune responses and protection against SFTSV. Moreover, the data proved that the hDC-SIGN transduced mice as a worthy tool for immunogenicity study for SFTSV.
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Affiliation(s)
- Ji-Young Park
- Department of Veterinary Public Health, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Republic of Korea
| | - Chamith Hewawaduge
- Department of Veterinary Public Health, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Republic of Korea
| | - Chandran Sivasankar
- Department of Veterinary Public Health, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Republic of Korea
| | - Khristine Kaith S Lloren
- Department of Veterinary Public Health, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Republic of Korea
| | - Byungkwan Oh
- Department of Veterinary Pathology, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Republic of Korea
| | - Mi Young So
- Department of Veterinary Public Health, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Republic of Korea
| | - John Hwa Lee
- Department of Veterinary Public Health, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Republic of Korea
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Ahn SJ, Baek YH, Lloren KKS, Choi WS, Jeong JH, Antigua KJC, Kwon HI, Park SJ, Kim EH, Kim YI, Si YJ, Hong SB, Shin KS, Chun S, Choi YK, Song MS. Correction to: Rapid and simple colorimetric detection of multiple influenza viruses infecting humans using a reverse transcriptional loopmediated isothermal amplification (RT-LAMP) diagnostic platform. BMC Infect Dis 2020; 20:965. [PMID: 33357216 PMCID: PMC7758918 DOI: 10.1186/s12879-020-05707-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Affiliation(s)
- Su Jeong Ahn
- Department of Microbiology, College of Medicine and Medical Research, Institute, Chungbuk National University, Chungdae-ro 1, Seowon-Ku, Cheongju, 28644, Republic of Korea
| | - Yun Hee Baek
- Department of Microbiology, College of Medicine and Medical Research, Institute, Chungbuk National University, Chungdae-ro 1, Seowon-Ku, Cheongju, 28644, Republic of Korea
| | - Khristine Kaith S Lloren
- Department of Microbiology, College of Medicine and Medical Research, Institute, Chungbuk National University, Chungdae-ro 1, Seowon-Ku, Cheongju, 28644, Republic of Korea
| | - Won-Suk Choi
- Department of Microbiology, College of Medicine and Medical Research, Institute, Chungbuk National University, Chungdae-ro 1, Seowon-Ku, Cheongju, 28644, Republic of Korea
| | - Ju Hwan Jeong
- Department of Microbiology, College of Medicine and Medical Research, Institute, Chungbuk National University, Chungdae-ro 1, Seowon-Ku, Cheongju, 28644, Republic of Korea
| | - Khristine Joy C Antigua
- Department of Microbiology, College of Medicine and Medical Research, Institute, Chungbuk National University, Chungdae-ro 1, Seowon-Ku, Cheongju, 28644, Republic of Korea
| | - Hyeok-Il Kwon
- Department of Microbiology, College of Medicine and Medical Research, Institute, Chungbuk National University, Chungdae-ro 1, Seowon-Ku, Cheongju, 28644, Republic of Korea
| | - Su-Jin Park
- Department of Microbiology, College of Medicine and Medical Research, Institute, Chungbuk National University, Chungdae-ro 1, Seowon-Ku, Cheongju, 28644, Republic of Korea
| | - Eun-Ha Kim
- Department of Microbiology, College of Medicine and Medical Research, Institute, Chungbuk National University, Chungdae-ro 1, Seowon-Ku, Cheongju, 28644, Republic of Korea
| | - Young-Il Kim
- Department of Microbiology, College of Medicine and Medical Research, Institute, Chungbuk National University, Chungdae-ro 1, Seowon-Ku, Cheongju, 28644, Republic of Korea
| | - Young-Jae Si
- Department of Microbiology, College of Medicine and Medical Research, Institute, Chungbuk National University, Chungdae-ro 1, Seowon-Ku, Cheongju, 28644, Republic of Korea
| | - Seung Bok Hong
- Department of Clinical Laboratory, Science, Chungbuk Health and Science University, Cheongju, Republic of Korea
| | - Kyeong Seob Shin
- Departments of Laboratory Medicine, Chungbuk National University, College of Medicine, Cheongju, Republic of Korea
| | - Sungkun Chun
- Department of Physiology, Chonbuk National University Medical School, Jeonju, 54907, Republic of Korea
| | - Young Ki Choi
- Department of Microbiology, College of Medicine and Medical Research, Institute, Chungbuk National University, Chungdae-ro 1, Seowon-Ku, Cheongju, 28644, Republic of Korea.
| | - Min-Suk Song
- Department of Microbiology, College of Medicine and Medical Research, Institute, Chungbuk National University, Chungdae-ro 1, Seowon-Ku, Cheongju, 28644, Republic of Korea.
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Ahn SJ, Baek YH, Lloren KKS, Choi WS, Jeong JH, Antigua KJC, Kwon HI, Park SJ, Kim EH, Kim YI, Si YJ, Hong SB, Shin KS, Chun S, Choi YK, Song MS. Rapid and simple colorimetric detection of multiple influenza viruses infecting humans using a reverse transcriptional loop-mediated isothermal amplification (RT-LAMP) diagnostic platform. BMC Infect Dis 2019; 19:676. [PMID: 31370782 PMCID: PMC6669974 DOI: 10.1186/s12879-019-4277-8] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 07/11/2019] [Indexed: 01/15/2023] Open
Abstract
Background In addition to seasonal influenza viruses recently circulating in humans, avian influenza viruses (AIVs) of H5N1, H5N6 and H7N9 subtypes have also emerged and demonstrated human infection abilities with high mortality rates. Although influenza viral infections are usually diagnosed using viral isolation and serological/molecular analyses, the cost, accessibility, and availability of these methods may limit their utility in various settings. The objective of this study was to develop and optimized a multiplex detection system for most influenza viruses currently infecting humans. Methods We developed and optimized a multiplex detection system for most influenza viruses currently infecting humans including two type B (both Victoria lineages and Yamagata lineages), H1N1, H3N2, H5N1, H5N6, and H7N9 using Reverse Transcriptional Loop-mediated Isothermal Amplification (RT-LAMP) technology coupled with a one-pot colorimetric visualization system to facilitate direct determination of results without additional steps. We also evaluated this multiplex RT-LAMP for clinical use using a total of 135 clinical and spiked samples (91 influenza viruses and 44 other human infectious viruses). Results We achieved rapid detection of seasonal influenza viruses (H1N1, H3N2, and Type B) and avian influenza viruses (H5N1, H5N6, H5N8 and H7N9) within an hour. The assay could detect influenza viruses with high sensitivity (i.e., from 100 to 0.1 viral genome copies), comparable to conventional RT-PCR-based approaches which would typically take several hours and require expensive equipment. This assay was capable of specifically detecting each influenza virus (Type B, H1N1, H3N2, H5N1, H5N6, H5N8 and H7N9) without cross-reactivity with other subtypes of AIVs or other human infectious viruses. Furthermore, 91 clinical and spiked samples confirmed by qRT-PCR were also detected by this multiplex RT-LAMP with 98.9% agreement. It was more sensitive than one-step RT-PCR approach (92.3%). Conclusions Results of this study suggest that our multiplex RT-LAMP assay may provide a rapid, sensitive, cost-effective, and reliable diagnostic method for identifying recent influenza viruses infecting humans, especially in locations without access to large platforms or sophisticated equipment. Electronic supplementary material The online version of this article (10.1186/s12879-019-4277-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Su Jeong Ahn
- Department of Microbiology, College of Medicine and Medical Research Institute, Chungbuk National University, Chungdae-ro 1, Seowon-Ku, Cheongju, 28644, Republic of Korea
| | - Yun Hee Baek
- Department of Microbiology, College of Medicine and Medical Research Institute, Chungbuk National University, Chungdae-ro 1, Seowon-Ku, Cheongju, 28644, Republic of Korea
| | - Khristine Kaith S Lloren
- Department of Microbiology, College of Medicine and Medical Research Institute, Chungbuk National University, Chungdae-ro 1, Seowon-Ku, Cheongju, 28644, Republic of Korea
| | - Won-Suk Choi
- Department of Microbiology, College of Medicine and Medical Research Institute, Chungbuk National University, Chungdae-ro 1, Seowon-Ku, Cheongju, 28644, Republic of Korea
| | - Ju Hwan Jeong
- Department of Microbiology, College of Medicine and Medical Research Institute, Chungbuk National University, Chungdae-ro 1, Seowon-Ku, Cheongju, 28644, Republic of Korea
| | - Khristine Joy C Antigua
- Department of Microbiology, College of Medicine and Medical Research Institute, Chungbuk National University, Chungdae-ro 1, Seowon-Ku, Cheongju, 28644, Republic of Korea
| | - Hyeok-Il Kwon
- Department of Microbiology, College of Medicine and Medical Research Institute, Chungbuk National University, Chungdae-ro 1, Seowon-Ku, Cheongju, 28644, Republic of Korea
| | - Su-Jin Park
- Department of Microbiology, College of Medicine and Medical Research Institute, Chungbuk National University, Chungdae-ro 1, Seowon-Ku, Cheongju, 28644, Republic of Korea
| | - Eun-Ha Kim
- Department of Microbiology, College of Medicine and Medical Research Institute, Chungbuk National University, Chungdae-ro 1, Seowon-Ku, Cheongju, 28644, Republic of Korea
| | - Young-Il Kim
- Department of Microbiology, College of Medicine and Medical Research Institute, Chungbuk National University, Chungdae-ro 1, Seowon-Ku, Cheongju, 28644, Republic of Korea
| | - Young-Jae Si
- Department of Microbiology, College of Medicine and Medical Research Institute, Chungbuk National University, Chungdae-ro 1, Seowon-Ku, Cheongju, 28644, Republic of Korea
| | - Seung Bok Hong
- Department of Clinical Laboratory Science, Chungbuk Health and Science University, Cheongju, Republic of Korea
| | - Kyeong Seob Shin
- Departments of Laboratory Medicine, Chungbuk National University College of Medicine, Cheongju, Republic of Korea
| | - Sungkun Chun
- Department of Physiology, Chonbuk National University Medical School, Jeonju, 54907, Republic of Korea
| | - Young Ki Choi
- Department of Microbiology, College of Medicine and Medical Research Institute, Chungbuk National University, Chungdae-ro 1, Seowon-Ku, Cheongju, 28644, Republic of Korea.
| | - Min-Suk Song
- Department of Microbiology, College of Medicine and Medical Research Institute, Chungbuk National University, Chungdae-ro 1, Seowon-Ku, Cheongju, 28644, Republic of Korea.
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Baek YH, Cheon HS, Park SJ, Lloren KKS, Ahn SJ, Jeong JH, Choi WS, Yu MA, Kwon HI, Kwon JJ, Kim EH, Kim YI, Antigua KJC, Kim SY, Jeong HW, Choi YK, Song MS. Simple, Rapid and Sensitive Portable Molecular Diagnosis of SFTS Virus Using Reverse Transcriptional Loop-Mediated Isothermal Amplification (RT-LAMP). J Microbiol Biotechnol 2019; 28:1928-1936. [PMID: 30270605 DOI: 10.4014/jmb.1806.06016] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
Recently, human infections caused by severe fever with thrombocytopenia syndrome virus (SFTSV), which can lead to fatality, have dramatically increased in East Asia. With the unavailability of vaccines or antiviral drugs to prevent and/or treat SFTSV infection, early rapid diagnosis is critical for prevention and control of the disease. Here, we report the development of a simple, rapid and sensitive portable detection method for SFTSV infection applying reverse transcription-loop mediated isothermal amplification (RT-LAMP) combined with one-pot colorimetric visualization and electro-free reaction platform. This method utilizes a pocket warmer to facilitate diagnosis in a resource-limited setting. Specific primers were designed to target the highly-conserved region of L gene of SFTSV. The detection limit of the RT-LAMP assay was approximately 100 viral genome copies from three different SFTSV strains. This assay exhibited comparable sensitivity to qRT-PCR and 10-fold more sensitivity than conventional RT-PCR, with a rapid detection time of 30 to 60 minutes. The RT-LAMP assay using SFTSV clinical specimens has demonstrated a similar detection rate to qRT-PCR and a higher detection rate compared to conventional RT-PCR. Moreover, there was no observed cross-reactive amplification of other human infectious viruses including Japanese Encephalitis Virus (JEV), Dengue, Enterovirus, Zika, Influenza and Middle East Respiratory Syndrome Coronavirus (MERS-CoV). This highly sensitive, electro- and equipment-free rapid colorimetric visualization method is feasible for resource-limited SFTSV field diagnosis.
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Affiliation(s)
- Yun Hee Baek
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju 28644, Republic of Korea
| | - Hyo-Soon Cheon
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju 28644, Republic of Korea
| | - Su-Jin Park
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju 28644, Republic of Korea
| | - Khristine Kaith S Lloren
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju 28644, Republic of Korea
| | - Su Jeong Ahn
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju 28644, Republic of Korea
| | - Ju Hwan Jeong
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju 28644, Republic of Korea
| | - Won-Suk Choi
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju 28644, Republic of Korea
| | - Min-Ah Yu
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju 28644, Republic of Korea
| | - Hyeok-Il Kwon
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju 28644, Republic of Korea
| | - Jin-Jung Kwon
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju 28644, Republic of Korea
| | - Eun-Ha Kim
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju 28644, Republic of Korea
| | - Young-Il Kim
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju 28644, Republic of Korea
| | - Khristine Joy C Antigua
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju 28644, Republic of Korea
| | - Seok-Yong Kim
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju 28644, Republic of Korea
| | - Hye Won Jeong
- Department of Internal Medicine, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju 28644, Republic of Korea.,Department of Internal Medicine, Chungbuk National University Hospital, Cheongju 28644, Republic of Korea
| | - Young Ki Choi
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju 28644, Republic of Korea
| | - Min-Suk Song
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju 28644, Republic of Korea
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Choi WS, Jeong JH, Lloren KKS, Ahn SJ, Antigua KJC, Kim YI, Si YJ, Baek YH, Choi YK, Song MS. Development of a rapid, simple and efficient one-pot cloning method for a reverse genetics system of broad subtypes of influenza A virus. Sci Rep 2019; 9:8318. [PMID: 31165766 PMCID: PMC6549168 DOI: 10.1038/s41598-019-44813-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Accepted: 05/21/2019] [Indexed: 11/09/2022] Open
Abstract
The reverse genetics (RG) system of influenza A viruses is well established. However, the conventional sequence-dependent method for cloning influenza genome segments is time-consuming and requires multiple processes (eg. enzyme digestion and ligation) and exhibits low cloning efficiency compared to the sequence-independent cloning method. In this study, we improved influenza genome cloning into the pHW2000 vector for an RG system by incorporating a sequence-independent circular polymerase extension cloning (CPEC) approach which requires only 2 steps (reverse transcription and one-pot CPEC-PCR) and takes about 4 hours before the transformation. The specifically designed viral gene and vector primers used for CPEC-PCR have improved cloning efficiency ranging from 63.6 to 100% based on the results of gene-specific colony PCR which was additionally confirmed by enzyme digestion. We successfully cloned all genes from broad subtypes of influenza A viruses (H1-H12, N1-N9) and rescued by the RG system. Our results demonstrate that this method-one-Pot cloning for influenza A virus-was efficient in terms of required time and cloning rate. In conclusion, the novel cloning method for influenza A virus will contribute to a significant reduction in the time required for genetic studies of emerging influenza viruses.
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Affiliation(s)
- Won-Suk Choi
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju, Republic of Korea
| | - Ju Hwan Jeong
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju, Republic of Korea
| | - Khristine Kaith S Lloren
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju, Republic of Korea
| | - Su Jeong Ahn
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju, Republic of Korea
| | - Khristine Joy C Antigua
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju, Republic of Korea
| | - Young-Il Kim
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju, Republic of Korea
| | - Young-Jae Si
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju, Republic of Korea
| | - Yun Hee Baek
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju, Republic of Korea
| | - Young Ki Choi
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju, Republic of Korea.
| | - Min-Suk Song
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju, Republic of Korea.
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Jeong JH, Kim EH, Lloren KKS, Kwon JJ, Kwon HI, Ahn SJ, Kim YI, Choi WS, Si YJ, Lee OJ, Han HJ, Baek YH, Song MS, Choi YK, Kim CJ. Preclinical evaluation of the efficacy of an H5N8 vaccine candidate (IDCDC-RG43A) in mouse and ferret models for pandemic preparedness. Vaccine 2018; 37:484-493. [PMID: 30502069 DOI: 10.1016/j.vaccine.2018.11.064] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 11/09/2018] [Accepted: 11/20/2018] [Indexed: 12/14/2022]
Abstract
Because H5N1 influenza viruses continuously threaten the public health, the WHO has prepared various clades of H5N1 mock-up vaccines as one of the measures for pandemic preparedness. The recent worldwide outbreak of H5Nx virus which belongs to clade 2.3.4.4 and of which H5N6 subtype belongs and already caused human infection also increases the need of pandemic vaccine for such novel emerging viruses. In this study, we evaluated the protective efficacy and immunogenicity of an egg-based and inactivated whole-virus H5N8 (IDCDC-RG43A) developed by CDC containing HA and NA gene of the parent virus A/gyrfalcon/Washington/41088-6/2014. Mice vaccinated two times elicited low to moderate antibody titer in varying amount of antigen doses against the homologous H5N8 vaccine virus and heterologous intra-clade 2.3.4.4 H5N6 (A/Sichuan/26221/2014) virus. Mice immunized with at least 3.0 µg/dose of IDCDC-RG43A with aluminum hydroxide adjuvant were completely protected from lethal challenge with the mouse-adapted H5N8 (A/Environment/Korea/ma468/2015, maH5N8) as well as cleared the viral replication in tissues including lung, brain, spleen, and kidney. Vaccinated ferrets induced high antibody titers against clade 2.3.4.4 H5N8/H5N6 viruses and the antibody showed high cross-reactivity to clade 2.2 H5N1 but not to clade 1 and 2.3.4 viruses as measured by hemagglutinin inhibition and serum neutralization assays. Furthermore, administration of the vaccine in ferrets resulted in attenuation of clinical disease signs and virus spread to peripheral organs including lung, spleen, and kidney from high dose challenge with maH5N8 virus. The protective and immunogenic characteristic of the candidate vaccine are essential attributes to be considered for further clinical trials as a pre-pandemic vaccine for a potential pandemic virus.
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Affiliation(s)
- Ju Hwan Jeong
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju, Republic of Korea
| | - Eun-Ha Kim
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju, Republic of Korea
| | - Khristine Kaith S Lloren
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju, Republic of Korea
| | - Jin Jung Kwon
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju, Republic of Korea
| | - Hyeok-Il Kwon
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju, Republic of Korea
| | - Su Jeong Ahn
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju, Republic of Korea
| | - Young-Il Kim
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju, Republic of Korea
| | - Won-Suk Choi
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju, Republic of Korea
| | - Young-Jae Si
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju, Republic of Korea
| | - Ok-Jun Lee
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju, Republic of Korea
| | - Hae Jung Han
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju, Republic of Korea; Research & Development Center, Green Cross Corporation, Yongin, Republic of Korea; Research & Development Center, Green Cross Wellbeing Corporation, Seongnam, Republic of Korea
| | - Yun Hee Baek
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju, Republic of Korea
| | - Min-Suk Song
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju, Republic of Korea.
| | - Young Ki Choi
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju, Republic of Korea.
| | - Chul-Joong Kim
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea.
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Choi WS, Lloren KKS, Baek YH, Song MS. The significance of avian influenza virus mouse-adaptation and its application in characterizing the efficacy of new vaccines and therapeutic agents. Clin Exp Vaccine Res 2017; 6:83-94. [PMID: 28775972 PMCID: PMC5540968 DOI: 10.7774/cevr.2017.6.2.83] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 05/03/2017] [Accepted: 05/12/2017] [Indexed: 11/26/2022] Open
Abstract
Due to the increased frequency of interspecies transmission of avian influenza viruses, studies designed to identify the molecular determinants that could lead to an expansion of the host range have been increased. A variety of mouse-based mammalian-adaptation studies of avian influenza viruses have provided insight into the genetic alterations of various avian influenza subtypes that may contribute to the generation of a pandemic virus. To date, the studies have focused on avian influenza subtypes H5, H6, H7, H9, and H10 which have recently caused human infection. Although mice cannot fully reflect the course of human infection with avian influenza, these mouse studies can be a useful method for investigating potential mammalian adaptive markers against newly emerging avian influenza viruses. In addition, due to the lack of appropriate vaccines against the diverse emerging influenza viruses, the generation of mouse-adapted lethal variants could contribute to the development of effective vaccines or therapeutic agents. Within this review, we will summarize studies that have demonstrated adaptations of avian influenza viruses that result in an altered pathogenicity in mice which may suggest the potential application of mouse-lethal strains in the development of influenza vaccines and/or therapeutics in preclinical studies.
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Affiliation(s)
- Won-Suk Choi
- Department of Microbiology, College of Medicine and Medical Research Institute, Chungbuk National University, Cheongju, Korea
| | - Khristine Kaith S Lloren
- Department of Microbiology, College of Medicine and Medical Research Institute, Chungbuk National University, Cheongju, Korea
| | - Yun Hee Baek
- Department of Microbiology, College of Medicine and Medical Research Institute, Chungbuk National University, Cheongju, Korea
| | - Min-Suk Song
- Department of Microbiology, College of Medicine and Medical Research Institute, Chungbuk National University, Cheongju, Korea
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