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Khairunisa SQ, Indriati DW, Megasari NLA, Ueda S, Kotaki T, Fahmi M, Ito M, Rachman BE, Hidayati AN, Nasronudin, Kameoka M. Spatial-temporal transmission dynamics of HIV-1 CRF01_AE in Indonesia. Sci Rep 2024; 14:9917. [PMID: 38730038 PMCID: PMC11087524 DOI: 10.1038/s41598-024-59820-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 04/16/2024] [Indexed: 05/12/2024] Open
Abstract
Human immunodeficiency virus type 1 (HIV-1) remains a serious health threat in Indonesia. In particular, the CRF01_AE viruses were the predominant HIV-1 strains in various cities in Indonesia. However, information on the dynamic transmission characteristics and spatial-temporal transmission of HIV-1 CRF01_AE in Indonesia is limited. Therefore, the present study examined the spatial-temporal transmission networks and evolutionary characteristics of HIV-1 CRF01_AE in Indonesia. To clarify the epidemiological connection between CRF01_AE outbreaks in Indonesia and the rest of the world, we performed phylogenetic studies on nearly full genomes of CRF01_AE viruses isolated in Indonesia. Our results showed that five epidemic clades, namely, IDN clades 1-5, of CRF01_AE were found in Indonesia. To determine the potential source and mode of transmission of CRF01_AE, we performed Bayesian analysis and built maximum clade credibility trees for each clade. Our study revealed that CRF01_AE viruses were commonly introduced into Indonesia from Southeast Asia, particularly Thailand. The CRF01_AE viruses might have spread through major pandemics in Asian countries, such as China, Vietnam, and Laos, rather than being introduced directly from Africa in the early 1980s. This study has major implications for public health practice and policy development in Indonesia. The contributions of this study include understanding the dynamics of HIV-1 transmission that is important for the implementation of HIV disease control and prevention strategies in Indonesia.
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Affiliation(s)
- Siti Qamariyah Khairunisa
- Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia
- Indonesian-Japan Collaborative Research Center for Emerging and Re-Emerging Infectious Diseases, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
| | - Dwi Wahyu Indriati
- Indonesian-Japan Collaborative Research Center for Emerging and Re-Emerging Infectious Diseases, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
- Department of Health, Vocational Faculty, Universitas Airlangga, Surabaya, Indonesia
| | - Ni Luh Ayu Megasari
- Indonesian-Japan Collaborative Research Center for Emerging and Re-Emerging Infectious Diseases, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
- Postgraduate School, Universitas Airlangga, Surabaya, Indonesia
| | - Shuhei Ueda
- Indonesian-Japan Collaborative Research Center for Emerging and Re-Emerging Infectious Diseases, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
- Center for Infectious Diseases, Kobe University Graduate School of Medicine, Hyogo, Japan
- Department of Public Health, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe, Hyogo, 654-0142, Japan
| | - Tomohiro Kotaki
- Indonesian-Japan Collaborative Research Center for Emerging and Re-Emerging Infectious Diseases, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
- Department of Public Health, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe, Hyogo, 654-0142, Japan
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Muhamad Fahmi
- Research Department, Research Institute for Humanity and Nature, Kyoto, Japan
- Research Organization of Science and Technology, Ritsumeikan University, Kusatsu, Japan
| | - Masahiro Ito
- Department of Bioinformatics, College of Life Sciences, Ritsumeikan University, Kusatsu, Japan
| | - Brian Eka Rachman
- Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia
- Indonesian-Japan Collaborative Research Center for Emerging and Re-Emerging Infectious Diseases, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
| | - Afif Nurul Hidayati
- Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia
- Indonesian-Japan Collaborative Research Center for Emerging and Re-Emerging Infectious Diseases, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
| | - Nasronudin
- Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia.
- Indonesian-Japan Collaborative Research Center for Emerging and Re-Emerging Infectious Diseases, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia.
| | - Masanori Kameoka
- Indonesian-Japan Collaborative Research Center for Emerging and Re-Emerging Infectious Diseases, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia.
- Department of Public Health, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe, Hyogo, 654-0142, Japan.
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Minami S, Kotaki T, Sakai Y, Okamura S, Torii S, Ono C, Motooka D, Hamajima R, Nouda R, Nurdin JA, Yamasaki M, Kanai Y, Ebina H, Maeda Y, Okamoto T, Tachibana T, Matsuura Y, Kobayashi T. Vero cell-adapted SARS-CoV-2 strain shows increased viral growth through furin-mediated efficient spike cleavage. Microbiol Spectr 2024; 12:e0285923. [PMID: 38415690 PMCID: PMC10986611 DOI: 10.1128/spectrum.02859-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 02/01/2024] [Indexed: 02/29/2024] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) utilizes several host proteases to cleave the spike (S) protein to enter host cells. SARS-CoV-2 S protein is cleaved into S1 and S2 subunits by furin, which is closely involved in the pathogenicity of SARS-CoV-2. However, the effects of the modulated protease cleavage activity due to S protein mutations on viral replication and pathogenesis remain unclear. Herein, we serially passaged two SARS-CoV-2 strains in Vero cells and characterized the cell-adapted SARS-CoV-2 strains in vitro and in vivo. The adapted strains showed high viral growth, effective S1/S2 cleavage of the S protein, and low pathogenicity compared with the wild-type strain. Furthermore, the viral growth and S1/S2 cleavage were enhanced by the combination of the Δ68-76 and H655Y mutations using recombinant SARS-CoV-2 strains generated by the circular polymerase extension reaction. The recombinant SARS-CoV-2 strain, which contained the mutation of the adapted strain, showed increased susceptibility to the furin inhibitor, suggesting that the adapted SARS-CoV-2 strain utilized furin more effectively than the wild-type strain. Pathogenicity was attenuated by infection with effectively cleaved recombinant SARS-CoV-2 strains, suggesting that the excessive cleavage of the S proteins decreases virulence. Finally, the high-growth-adapted SARS-CoV-2 strain could be used as the seed for a low-cost inactivated vaccine; immunization with this vaccine can effectively protect the host from SARS-CoV-2 variants. Our findings provide novel insights into the growth and pathogenicity of SARS-CoV-2 in the evolution of cell-cell transmission. IMPORTANCE The efficacy of the S protein cleavage generally differs among the SARS-CoV-2 variants, resulting in distinct viral characteristics. The relationship between a mutation and the entry of SARS-CoV-2 into host cells remains unclear. In this study, we analyzed the sequence of high-growth Vero cell-adapted SARS-CoV-2 and factors determining the enhancement of the growth of the adapted virus and confirmed the characteristics of the adapted strain by analyzing the recombinant SARS-CoV-2 strain. We successfully identified mutations Δ68-76 and H655Y, which enhance viral growth and the S protein cleavage by furin. Using recombinant viruses enabled us to conduct a virus challenge experiment in vivo. The pathogenicity of SARS-CoV-2 introduced with the mutations Δ68-76, H655Y, P812L, and Q853L was attenuated in hamsters, indicating the possibility of the attenuation of excessive cleaved SARS-CoV-2. These findings provide novel insights into the infectivity and pathogenesis of SARS-CoV-2 strains, thereby significantly contributing to the field of virology.
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Affiliation(s)
- Shohei Minami
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Tomohiro Kotaki
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Yusuke Sakai
- Department of Pathology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Shinya Okamura
- Virus Vaccine Group, BIKEN Innovative Vaccine Research Alliance Laboratories, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Osaka, Japan
- The Research Foundation for Microbial Diseases of Osaka University, Suita, Osaka, Japan
| | - Shiho Torii
- Laboratory of Virus Control, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Chikako Ono
- Laboratory of Virus Control, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
- Center for Infectious Disease Education and Research, Osaka University, Osaka, Japan
| | - Daisuke Motooka
- Department of Infection Metagenomics, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Rina Hamajima
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Ryotaro Nouda
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Jeffery A. Nurdin
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Moeko Yamasaki
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Yuta Kanai
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Hirotaka Ebina
- Virus Vaccine Group, BIKEN Innovative Vaccine Research Alliance Laboratories, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Osaka, Japan
- The Research Foundation for Microbial Diseases of Osaka University, Suita, Osaka, Japan
- Center for Infectious Disease Education and Research, Osaka University, Osaka, Japan
- Center for Advanced Modalities and DDS, Osaka University, Osaka, Japan
| | - Yusuke Maeda
- Laboratory of Viral Dynamism Research, Research Institute for Microbial Diseases Osaka University, Osaka, Japan
| | - Toru Okamoto
- Institute for Advanced Co-creation Studies, Research Institute for Microbial Diseases Osaka University, Osaka, Japan
| | - Taro Tachibana
- Cell Engineering Corporation, Osaka, Japan
- Department of Bioengineering, Graduate School of Engineering, Osaka Metropolitan University, Osaka, Japan
| | - Yoshiharu Matsuura
- Laboratory of Virus Control, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
- Center for Infectious Disease Education and Research, Osaka University, Osaka, Japan
- Center for Advanced Modalities and DDS, Osaka University, Osaka, Japan
| | - Takeshi Kobayashi
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
- Center for Infectious Disease Education and Research, Osaka University, Osaka, Japan
- Center for Advanced Modalities and DDS, Osaka University, Osaka, Japan
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Hoque SA, Saito H, Akino W, Kotaki T, Okitsu S, Onda Y, Kobayashi T, Hossian T, Khamrin P, Motomura K, Maneekarn N, Hayakawa S, Ushijima H. The Emergence and Widespread Circulation of Enteric Viruses Throughout the COVID-19 Pandemic: A Wastewater-Based Evidence. Food Environ Virol 2023; 15:342-354. [PMID: 37898959 DOI: 10.1007/s12560-023-09566-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 08/30/2023] [Indexed: 10/31/2023]
Abstract
Growing evidence shed light on the importance of wastewater-based epidemiology (WBE) during the pandemic, when the patients rarely visited the clinics despite the fact that the infections were still prevalent in the community as before. The abundance of infections in the community poses a constant threat of the emergence of new epidemic strains. Herein, we investigated enteric viruses in raw sewage water (SW) from Japan's Tohoku region and compared them to those from the Kansai region to better understand the circulating strains and their distribution across communities during the COVID-19 pandemic. Raw SW was collected between 2019 and 2022, concentrated by polyethylene-glycol-precipitation method, and investigated for major AGE viruses by RT-PCR. Sequence-based analyses were used to assess genotypes and evolutionary relationships. The most commonly detected enteric virus was rotavirus A (RVA) at 63.8%, followed by astrovirus (AstV) at 61.1%, norovirus (NoV) GII and adenovirus (AdV) at 33.3%, sapovirus (SV) at 25.0%, enterovirus (EV) at 19.4%, and NoV GI at 13.9%. The highest prevalence (46.0%) was found in the spring. Importantly, enteric viruses did not decline during the pandemic. Rather, several strains like NoV GII.2, DS-1-like human G3 (equine) RVA, MLB1 AstV, and different F41 HAdV emerged throughout the pandemic and spread widely over the Tohoku and Kansai regions. Tohoku's detection rate remained lower than that of the Kansai area (36 vs 58%). This study provides evidence for the emergence and spread of enteric viruses during the pandemic.
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Affiliation(s)
- Sheikh Ariful Hoque
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, 30-1 OyaguchiKamicho, Itabashi-ku, Tokyo, 173-8610, Japan
- Cell and Tissue Culture Laboratory, Centre for Advanced Research in Sciences (CARS), University of Dhaka, Dhaka, Bangladesh
| | - Hiroyuki Saito
- Department of Microbiology, Akita Prefectual Research Center for Public Health and Environment, Akita, Japan
| | - Wakako Akino
- Department of Microbiology, Akita Prefectual Research Center for Public Health and Environment, Akita, Japan
| | - Tomohiro Kotaki
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Shoko Okitsu
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, 30-1 OyaguchiKamicho, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Yuko Onda
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, 30-1 OyaguchiKamicho, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Takeshi Kobayashi
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Tania Hossian
- Cell and Tissue Culture Laboratory, Centre for Advanced Research in Sciences (CARS), University of Dhaka, Dhaka, Bangladesh
| | - Pattara Khamrin
- Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | | | - Niwat Maneekarn
- Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Satoshi Hayakawa
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, 30-1 OyaguchiKamicho, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Hiroshi Ushijima
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, 30-1 OyaguchiKamicho, Itabashi-ku, Tokyo, 173-8610, Japan.
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4
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Kanai Y, Onishi M, Yoshida Y, Kotaki T, Minami S, Nouda R, Yamasaki M, Enoki Y, Kobayashi T. Genetic engineering strategy for generating a stable dsRNA virus vector using a virus-like codon-modified transgene. J Virol 2023; 97:e0049223. [PMID: 37732784 PMCID: PMC10617491 DOI: 10.1128/jvi.00492-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 08/01/2023] [Indexed: 09/22/2023] Open
Abstract
IMPORTANCE The stabilities of transgenes in RNA virus vectors differ between the genes of interest, but the molecular mechanisms determining genetic stability remain unknown. This study demonstrated that the stability of a transgene was affected by the nucleotide composition, and altering the codon usage of transgenes to resemble that of the viral genome significantly increased transgene stability in double-stranded RNA virus vectors. The virus-like codon modification strategy enabled generation of stable rotavirus and mammalian orthoreovirus vectors, which could be developed as machinery for gene delivery to the intestines and/or respiratory organs. This technology has further potential to be expanded to other RNA viruses.
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Affiliation(s)
- Yuta Kanai
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Misa Onishi
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Yukino Yoshida
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Tomohiro Kotaki
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Shohei Minami
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Ryotaro Nouda
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Moeko Yamasaki
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Yasutaka Enoki
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Takeshi Kobayashi
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
- Center for Infectious Disease Education and Research, Osaka University, Suita, Osaka, Japan
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5
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Takazawa S, Kotaki T, Nakamura S, Utsubo C, Kameoka M. Construction of Fosmid-based SARS-CoV-2 replicons for antiviral drug screening and replication analyses in biosafety level 2 facilities. Virus Res 2023; 334:199176. [PMID: 37473963 PMCID: PMC10374963 DOI: 10.1016/j.virusres.2023.199176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 07/06/2023] [Accepted: 07/17/2023] [Indexed: 07/22/2023]
Abstract
The coronavirus disease 2019 (COVID-19) pandemic, caused by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), has necessitated the global development of countermeasures since its outbreak. However, current therapeutics and vaccines to stop the pandemic are insufficient and this is mainly because of the emergence of resistant variants, which requires the urgent development of new countermeasures, such as antiviral drugs. Replicons, self-replicating RNAs that do not produce virions, are a promising system for this purpose because they safely recreate viral replication, enabling antiviral screening in biosafety level (BSL)-2 facilities. We herein constructed three pCC2Fos-based RNA replicons lacking some open reading frames (ORF) of SARS-CoV-2: the Δorf2-8, Δorf2.4, and Δorf2 replicons, and validated their replication in Huh-7 cells. The functionalities of the Δorf2-8 and Δorf2.4 replicons for antiviral drug screening were also confirmed. We conducted puromycin selection following the construction of the Δorf2.4-puro replicon by inserting a puromycin-resistant gene into the Δorf2.4 replicon. We observed the more sustained replication of the Δorf2.4-puro replicon by puromycin pressure. The present results will contribute to the establishment of a safe and useful replicon system for analyzing SARS-CoV-2 replication mechanisms as well as the development of novel antiviral drugs in BSL-2 facilities.
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Affiliation(s)
- Shunta Takazawa
- Department of Public Health, Kobe University Graduate School of Health Sciences, Kobe, Hyogo, Japan; Department of Clinical Laboratory, Kobe City Medical Center General Hospital, Kobe, Hyogo, Japan
| | - Tomohiro Kotaki
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan.
| | - Satsuki Nakamura
- Department of Public Health, Kobe University Graduate School of Health Sciences, Kobe, Hyogo, Japan
| | - Chie Utsubo
- Department of Public Health, Kobe University Graduate School of Health Sciences, Kobe, Hyogo, Japan
| | - Masanori Kameoka
- Department of Public Health, Kobe University Graduate School of Health Sciences, Kobe, Hyogo, Japan.
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Minami S, Matsumoto N, Omori H, Nakamura Y, Tamiya S, Nouda R, Nurdin JA, Yamasaki M, Kotaki T, Kanai Y, Okamoto T, Tachibana T, Ushijima H, Kobayashi T, Sato S. Effective SARS-CoV-2 replication of monolayers of intestinal epithelial cells differentiated from human induced pluripotent stem cells. Sci Rep 2023; 13:11610. [PMID: 37463955 DOI: 10.1038/s41598-023-38548-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 07/10/2023] [Indexed: 07/20/2023] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes severe acute respiratory symptoms in humans. Controlling the coronavirus disease pandemic is a worldwide priority. The number of SARS-CoV-2 studies has dramatically increased, and the requirement for analytical tools is higher than ever. Here, we propose monolayered-intestinal epithelial cells (IECs) derived from human induced pluripotent stem cells (iPSCs) instead of three-dimensional cultured intestinal organoids as a suitable tool to study SARS-CoV-2 infection. Differentiated IEC monolayers express high levels of angiotensin-converting enzyme 2 and transmembrane protease serine 2 (TMPRSS2), host factors essential for SARS-CoV-2 infection. SARS-CoV-2 efficiently grows in IEC monolayers. Using this propagation system, we confirm that TMPRSS2 inhibition blocked SARS-CoV-2 infection in IECs. Hence, our iPSC-derived IEC monolayers are suitable for SARS-CoV-2 research under physiologically relevant conditions.
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Affiliation(s)
- Shohei Minami
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871, Japan
| | - Naomi Matsumoto
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871, Japan
| | - Hiroko Omori
- Core Instrumentation Facility, Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871, Japan
| | - Yutaka Nakamura
- Department of Microbiology and Immunology, School of Pharmaceutical Sciences, Wakayama Medical University, Wakayama, 640-8156, Japan
| | - Shigeyuki Tamiya
- Department of Microbiology and Immunology, School of Pharmaceutical Sciences, Wakayama Medical University, Wakayama, 640-8156, Japan
| | - Ryotaro Nouda
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871, Japan
| | - Jeffery A Nurdin
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871, Japan
| | - Moeko Yamasaki
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871, Japan
| | - Tomohiro Kotaki
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871, Japan
| | - Yuta Kanai
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871, Japan
| | - Toru Okamoto
- Institute for Advanced Co-creation Studies, Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871, Japan
- Center for Infectious Disease Education and Research, Osaka University, Osaka, 565-0871, Japan
| | - Taro Tachibana
- Cell Engineering Corporation, Osaka, 532-0011, Japan
- Department of Bioengineering, Graduate School of Engineering, Osaka Metropolitan University, Osaka, 558-8585, Japan
| | - Hiroshi Ushijima
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, 173-8610, Japan
| | - Takeshi Kobayashi
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871, Japan.
- Center for Infectious Disease Education and Research, Osaka University, Osaka, 565-0871, Japan.
| | - Shintaro Sato
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871, Japan.
- Department of Microbiology and Immunology, School of Pharmaceutical Sciences, Wakayama Medical University, Wakayama, 640-8156, Japan.
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7
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Hoque SA, Kotaki T, Pham NTK, Onda Y, Okitsu S, Sato S, Yuki Y, Kobayashi T, Maneekarn N, Kiyono H, Hayakawa S, Ushijima H. Genotype Diversity of Enteric Viruses in Wastewater Amid the COVID-19 Pandemic. Food Environ Virol 2023; 15:176-191. [PMID: 37058225 PMCID: PMC10103036 DOI: 10.1007/s12560-023-09553-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 03/15/2023] [Indexed: 06/13/2023]
Abstract
Viruses remain the leading cause of acute gastroenteritis (AGE) worldwide. Recently, we reported the abundance of AGE viruses in raw sewage water (SW) during the COVID-19 pandemic, when viral AGE patients decreased dramatically in clinics. Since clinical samples were not reflecting the actual state, it remained important to determine the circulating strains in the SW for preparedness against impending outbreaks. Raw SW was collected from a sewage treatment plant in Japan from August 2018 to March 2022, concentrated by polyethylene-glycol-precipitation method, and investigated for major gastroenteritis viruses by RT-PCR. Genotypes and evolutionary relationships were evaluated through sequence-based analyses. Major AGE viruses like rotavirus A (RVA), norovirus (NoV) GI and GII, and astrovirus (AstV) increased sharply (10-20%) in SW during the COVID-19 pandemic, though some AGE viruses like sapovirus (SV), adenovirus (AdV), and enterovirus (EV) decreased slightly (3-10%). The prevalence remained top in the winter. Importantly, several strains, including G1 and G3 of RVA, GI.1 and GII.2 of NoV, GI.1 of SV, MLB1 of AstV, and F41 of AdV, either emerged or increased amid the pandemic, suggesting that the normal phenomenon of genotype changing remained active over this time. This study crucially presents the molecular characteristics of circulating AGE viruses, explaining the importance of SW investigation during the pandemic when a clinical investigation may not produce the complete scenario.
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Affiliation(s)
- Sheikh Ariful Hoque
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, 30-1 OyaguchiKamicho, Itabashi-Ku, Tokyo, 173-8610, Japan
- Cell and Tissue Culture Laboratory, Centre for Advanced Research in Sciences (CARS), University of Dhaka, Dhaka, 1000, Bangladesh
| | - Tomohiro Kotaki
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871, Japan
| | - Ngan Thi Kim Pham
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, 30-1 OyaguchiKamicho, Itabashi-Ku, Tokyo, 173-8610, Japan
| | - Yuko Onda
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, 30-1 OyaguchiKamicho, Itabashi-Ku, Tokyo, 173-8610, Japan
| | - Shoko Okitsu
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, 30-1 OyaguchiKamicho, Itabashi-Ku, Tokyo, 173-8610, Japan
| | - Shintaro Sato
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871, Japan
- Department of Microbiology and Immunology, School of Pharmaceutical Sciences, Wakayama Medical University, Wakayama, 640-8156, Japan
| | - Yoshikazu Yuki
- Department of Human Mucosal Vaccinology, Chiba University Hospital, Chiba, Japan
| | - Takeshi Kobayashi
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871, Japan
| | - Niwat Maneekarn
- Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Hiroshi Kiyono
- Department of Human Mucosal Vaccinology, Chiba University Hospital, Chiba, Japan
- Research Institute of Disaster Medicine, Institute for Global Prominent Research, Institute for Advanced Academic Research, Chiba University, Chiba, Japan
- CU-UCSD Center for Mucosal Immunology, Allergy and Vaccines (cMAV), Division of Gastroenterology, Department of Medicine, University of California, San Diego, USA
| | - Satoshi Hayakawa
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, 30-1 OyaguchiKamicho, Itabashi-Ku, Tokyo, 173-8610, Japan
| | - Hiroshi Ushijima
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, 30-1 OyaguchiKamicho, Itabashi-Ku, Tokyo, 173-8610, Japan.
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Khairunisa SQ, Megasari NLA, Ueda S, Kotaki T, Hidayati AN, Nasronudin, Kameoka M. Subtype Distribution and Drug Resistance Patterns Among HIV-1 Strains Prevalent in Makassar, Indonesia. AIDS Res Hum Retroviruses 2023; 39:124-129. [PMID: 36656663 DOI: 10.1089/aid.2022.0139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Human immunodeficiency virus type 1 (HIV-1) is characterized by a large degree of genetic variability because of high rates of recombination and mutation, sizable population sizes, and rapid replication. Therefore, this study investigated HIV-1 subtype distribution and the appearance of drug resistance mutations (DRMs) in viruses that are prevalent in Makassar, South Sulawesi, Indonesia. The HIV-1 pol, env, and gag genes were amplified from 63 infected individuals and sequenced for a subtyping analysis. CRF01_AE was identified as the predominant HIV-1 circulating recombinant form (CRF) in Makassar, South Sulawesi, Indonesia. Subtype B and recombinant viruses containing CRF01_AE, CRF02_AG, and/or subtype B gene fragments were also detected. Several major DRMs against non-nucleoside reverse transcriptase inhibitors were found among antiretroviral therapy (ART)-experienced subjects, whereas ART-naive subjects did not possess any transmitted drug resistance. The prevalence of DRMs was very high among ART-experienced subjects; therefore, further surveillance is required in this region.
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Affiliation(s)
- Siti Qamariyah Khairunisa
- Doctoral Program-Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia.,Indonesian-Japan Collaborative Research Center for Emerging and Re-Emerging Infectious Diseases, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
| | - Ni Luh Ayu Megasari
- Indonesian-Japan Collaborative Research Center for Emerging and Re-Emerging Infectious Diseases, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
| | - Shuhei Ueda
- Indonesian-Japan Collaborative Research Center for Emerging and Re-Emerging Infectious Diseases, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia.,Center for Infectious Diseases, Kobe University Graduate School of Medicine, Kobe, Japan.,Division of Global Infectious Diseases, Department of Public Health, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Tomohiro Kotaki
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Afif Nurul Hidayati
- Doctoral Program-Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia.,Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia
| | - Nasronudin
- Doctoral Program-Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia.,Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia
| | - Masanori Kameoka
- Indonesian-Japan Collaborative Research Center for Emerging and Re-Emerging Infectious Diseases, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia.,Division of Global Infectious Diseases, Department of Public Health, Kobe University Graduate School of Health Sciences, Kobe, Japan
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9
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Nakamura A, Kotaki T, Nagai Y, Takazawa S, Tokunaga K, Kameoka M. Construction and evaluation of a self-replicative RNA vaccine against SARS-CoV-2 using yellow fever virus replicon. PLoS One 2022; 17:e0274829. [PMID: 36264936 PMCID: PMC9584447 DOI: 10.1371/journal.pone.0274829] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 09/02/2022] [Indexed: 11/19/2022] Open
Abstract
The coronavirus disease 2019 (COVID-19) pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection is a global threat. To forestall the pandemic, developing safe and effective vaccines is necessary. Because of the rapid production and little effect on the host genome, mRNA vaccines are attractive, but they have a relatively low immune response after a single dose. Replicon RNA (repRNA) is a promising vaccine platform for safety and efficacy. RepRNA vaccine encodes not only antigen genes but also the genes necessary for RNA replication. Thus, repRNA is self-replicative and can play the role of an adjuvant by itself, which elicits robust immunity. This study constructed and evaluated a repRNA vaccine in which the gene encoding the spike (S) protein of SARS-CoV-2 was inserted into a replicon of yellow fever virus 17D strain. Upon electroporation of this repRNA into baby hamster kidney cells, the S protein and yellow fever virus protein were co-expressed. Additionally, the self-replication ability of repRNA vaccine was confirmed using qRT-PCR, demonstrating its potency as a vaccine. Immunization of C57BL/6 mice with 1 μg of the repRNA vaccine induced specific T-cell responses but not antibody responses. Notably, the T-cell response induced by the repRNA vaccine was significantly higher than that induced by the nonreplicative RNA vaccine in our experimental model. In the future, it is of the essence to optimize vaccine administration methods and improve S protein expression, like protection of repRNA by nanoparticles and evasion of innate immunity of the host to enhance the immune-inducing ability of the repRNA vaccine.
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Affiliation(s)
- Akina Nakamura
- Department of Public Health, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Tomohiro Kotaki
- Department of Public Health, Kobe University Graduate School of Health Sciences, Kobe, Japan
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
- * E-mail: (TK); (MK)
| | - Yurie Nagai
- Department of Public Health, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Shunta Takazawa
- Department of Public Health, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Kenzo Tokunaga
- Department of Pathology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Masanori Kameoka
- Department of Public Health, Kobe University Graduate School of Health Sciences, Kobe, Japan
- * E-mail: (TK); (MK)
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Urushidani M, Kawayoshi A, Kotaki T, Saeki K, Mori Y, Kameoka M. Inactivation of SARS-CoV-2 and influenza A virus by dry fogging hypochlorous acid solution and hydrogen peroxide solution. PLoS One 2022; 17:e0261802. [PMID: 35389997 PMCID: PMC8989197 DOI: 10.1371/journal.pone.0261802] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 03/23/2022] [Indexed: 11/26/2022] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the causative agent of coronavirus disease 2019 (COVID-19), is transmitted mainly by droplet or aerosol infection; however, it may also be transmitted by contact infection. SARS-CoV-2 that adheres to environmental surfaces remains infectious for several days. We herein attempted to inactivate SARS-CoV-2 and influenza A virus adhering to an environmental surface by dry fogging hypochlorous acid solution and hydrogen peroxide solution. SARS-CoV-2 and influenza virus were air-dried on plastic plates and placed into a test chamber for inactivation by the dry fogging of these disinfectants. The results obtained showed that the dry fogging of hypochlorous acid solution and hydrogen peroxide solution inactivated SARS-CoV-2 and influenza A virus in CT value (the product of the disinfectant concentration and contact time)-dependent manners. SARS-CoV-2 was more resistant to the virucidal effects of aerosolized hypochlorous acid solution and hydrogen peroxide solution than influenza A virus; therefore, higher concentrations of disinfectants or longer contact times were required to inactivate SARS-CoV-2 than influenza A virus. The present results provide important information for the development of a strategy that inactivates SARS-CoV-2 and influenza A virus on environmental surfaces by spatial fogging.
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Affiliation(s)
| | - Akira Kawayoshi
- Disinfection Division, H. Ikeuchi & Co., Ltd., Nishiwaki, Hyogo, Japan
| | - Tomohiro Kotaki
- Division of Global Infectious Diseases, Department of Public Health, Kobe University Graduate School of Health Sciences, Kobe, Hyogo, Japan
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan
| | - Keiichi Saeki
- Laboratory of Microbiology and Immunology, Graduate School of Agricultural Science, Kobe University, Kobe, Hyogo, Japan
| | - Yasuko Mori
- Division of Clinical Virology, Center for Infectious Diseases, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Masanori Kameoka
- Division of Global Infectious Diseases, Department of Public Health, Kobe University Graduate School of Health Sciences, Kobe, Hyogo, Japan
- * E-mail:
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Urushidani M, Kawayoshi A, Kotaki T, Saeki K, Mori Y, Kameoka M. Inactivation of SARS-CoV-2 and influenza A virus by dry fogging hypochlorous acid solution and hydrogen peroxide solution. PLoS One 2022; 17:e0261802. [PMID: 35389997 DOI: 10.1101/2021.12.13.472413] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 03/23/2022] [Indexed: 05/27/2023] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the causative agent of coronavirus disease 2019 (COVID-19), is transmitted mainly by droplet or aerosol infection; however, it may also be transmitted by contact infection. SARS-CoV-2 that adheres to environmental surfaces remains infectious for several days. We herein attempted to inactivate SARS-CoV-2 and influenza A virus adhering to an environmental surface by dry fogging hypochlorous acid solution and hydrogen peroxide solution. SARS-CoV-2 and influenza virus were air-dried on plastic plates and placed into a test chamber for inactivation by the dry fogging of these disinfectants. The results obtained showed that the dry fogging of hypochlorous acid solution and hydrogen peroxide solution inactivated SARS-CoV-2 and influenza A virus in CT value (the product of the disinfectant concentration and contact time)-dependent manners. SARS-CoV-2 was more resistant to the virucidal effects of aerosolized hypochlorous acid solution and hydrogen peroxide solution than influenza A virus; therefore, higher concentrations of disinfectants or longer contact times were required to inactivate SARS-CoV-2 than influenza A virus. The present results provide important information for the development of a strategy that inactivates SARS-CoV-2 and influenza A virus on environmental surfaces by spatial fogging.
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Affiliation(s)
| | - Akira Kawayoshi
- Disinfection Division, H. Ikeuchi & Co., Ltd., Nishiwaki, Hyogo, Japan
| | - Tomohiro Kotaki
- Division of Global Infectious Diseases, Department of Public Health, Kobe University Graduate School of Health Sciences, Kobe, Hyogo, Japan
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan
| | - Keiichi Saeki
- Laboratory of Microbiology and Immunology, Graduate School of Agricultural Science, Kobe University, Kobe, Hyogo, Japan
| | - Yasuko Mori
- Division of Clinical Virology, Center for Infectious Diseases, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Masanori Kameoka
- Division of Global Infectious Diseases, Department of Public Health, Kobe University Graduate School of Health Sciences, Kobe, Hyogo, Japan
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Kotaki T, Kurosu T, Grinyo-Escuer A, Davidson E, Churrotin S, Okabayashi T, Puiprom O, Mulyatno KC, Sucipto TH, Doranz BJ, Ono KI, Soegijanto S, Kameoka M. An affinity-matured human monoclonal antibody targeting fusion loop epitope of dengue virus with in vivo therapeutic potency. Sci Rep 2021; 11:12987. [PMID: 34155267 PMCID: PMC8217507 DOI: 10.1038/s41598-021-92403-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 06/08/2021] [Indexed: 11/26/2022] Open
Abstract
Dengue virus (DENV), from the genus flavivirus of the family flaviviridae, causes serious health problems globally. Human monoclonal antibodies (HuMAb) can be used to elucidate the mechanisms of neutralization and antibody-dependent enhancement (ADE) of DENV infections, leading to the development of a vaccine or therapeutic antibodies. Here, we generated eight HuMAb clones from an Indonesian patient infected with DENV. These HuMAbs exhibited the typical characteristics of weak neutralizing antibodies including high cross-reactivity with other flaviviruses and targeting of the fusion loop epitope (FLE). However, one of the HuMAbs, 3G9, exhibited strong neutralization (NT50 < 0.1 μg/ml) and possessed a high somatic hyper-mutation rate of the variable region, indicating affinity-maturation. Administration of this antibody significantly prolonged the survival of interferon-α/β/γ receptor knockout C57BL/6 mice after a lethal DENV challenge. Additionally, Fc-modified 3G9 that had lost their in vitro ADE activity showed enhanced therapeutic potency in vivo and competed strongly with an ADE-prone antibody in vitro. Taken together, the affinity-matured FLE-targeting antibody 3G9 exhibits promising features for therapeutic application including a low NT50 value, potential for treatment of various kinds of mosquito-borne flavivirus infection, and suppression of ADE. This study demonstrates the therapeutic potency of affinity-matured FLE-targeting antibodies.
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Affiliation(s)
- Tomohiro Kotaki
- Department of Public Health, Kobe University Graduate School of Health Sciences, Kobe, Japan.
- Collaborative Research Center for Emerging and Re-Emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia.
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Suita, Japan.
| | - Takeshi Kurosu
- Department of Virology I, National Institute of Infectious Diseases (NIID), Tokyo, Japan
| | | | | | - Siti Churrotin
- Collaborative Research Center for Emerging and Re-Emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia
| | - Tamaki Okabayashi
- Mahidol-Osaka Center for Infectious Diseases (MOCID), Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Orapim Puiprom
- Mahidol-Osaka Center for Infectious Diseases (MOCID), Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Kris Cahyo Mulyatno
- Collaborative Research Center for Emerging and Re-Emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia
| | - Teguh Hari Sucipto
- Collaborative Research Center for Emerging and Re-Emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia
| | | | - Ken-Ichiro Ono
- Medical & Biological Laboratories Co., Ltd., Tokyo, Japan
| | - Soegeng Soegijanto
- Collaborative Research Center for Emerging and Re-Emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia
| | - Masanori Kameoka
- Department of Public Health, Kobe University Graduate School of Health Sciences, Kobe, Japan.
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Abstract
The development of specific antiviral compounds to SARS-CoV-2 is an urgent task. One of the obstacles for the antiviral development is the requirement of biocontainment because infectious SARS-CoV-2 must be handled in a biosafety level-3 laboratory. Replicon, a non-infectious self-replicative viral RNA, could be a safe and effective tool for antiviral evaluation. Herein, we generated a PCR-based SARS-CoV-2 replicon. Eight fragments covering the entire SARS-CoV-2 genome except S, E, and M genes were amplified with HiBiT-tag sequence by PCR. The amplicons were ligated and in vitro transcribed to RNA. The cells electroporated with the replicon RNA showed more than 3000 times higher luminescence than MOCK control cells at 24 h post-electroporation, indicating robust translation and RNA replication of the replicon. The replication was drastically inhibited by remdesivir, an RNA polymerase inhibitor for SARS-CoV-2. The IC50 of remdesivir in this study was 0.29 μM, generally consistent to the IC50 obtained using infectious SARS-CoV-2 in a previous study (0.77 μM). Taken together, this system could be applied to the safe and effective antiviral evaluation without using infectious SARS-CoV-2. Because this is a PCR-based and transient replicon system, further improvement including the establishment of stable cell line must be achieved.
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Affiliation(s)
- Tomohiro Kotaki
- Department of Public Health, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe, Hyogo, 654-0142, Japan.
| | - Xuping Xie
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, TX, USA
| | - Pei-Yong Shi
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, TX, USA
| | - Masanori Kameoka
- Department of Public Health, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe, Hyogo, 654-0142, Japan.
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Khairunisa SQ, Megasari NLA, Ueda S, Budiman W, Kotaki T, Nasronudin, Kameoka M. 2018-2019 Update on the Molecular Epidemiology of HIV-1 in Indonesia. AIDS Res Hum Retroviruses 2020; 36:957-963. [PMID: 32799643 DOI: 10.1089/aid.2020.0151] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 11/12/2022] Open
Abstract
The HIV type 1 (HIV-1) epidemic has continued to grow in Indonesia; however, continuous updates on the epidemiology of HIV-1 in Indonesia remain challenging because it is the biggest archipelago in the world. Furthermore, the emergence of HIV drug resistance (HIVDR) has had a negative impact on the treatment of infected individuals. In this study, we performed HIV-1 subtyping and the detection of HIVDR in 105 HIV-1-infected individuals residing in various cities in Indonesia during 2018-2019. The results obtained identified CRF01_AE as the major epidemic HIV-1 strain, responsible for 81.9% of infection cases, followed by subtype B (12.4%), CRF02_AG (3.8%), CRF52_01B (1%), and a recombinant between CRF01_AE and CRF02_AG (1.0%). Major drug resistance-associated mutations against reverse transcriptase inhibitors were detected in 20% of samples. These results suggest that CRF01_AE is a major HIV-1 strain in Indonesia, while CRF02_AG is emerging. The prevalence of HIVDR in Indonesia needs to be monitored.
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Affiliation(s)
- Siti Qamariyah Khairunisa
- Indonesian-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
| | - Ni Luh Ayu Megasari
- Indonesian-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
| | - Shuhei Ueda
- Indonesian-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
- Center for Infectious Diseases, Kobe University Graduate School of Medicine, Hyogo, Japan
- Department of Public Health, Kobe University Graduate School of Health Sciences, Hyogo, Japan
| | | | - Tomohiro Kotaki
- Department of Public Health, Kobe University Graduate School of Health Sciences, Hyogo, Japan
| | - Nasronudin
- Indonesian-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
- Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia
| | - Masanori Kameoka
- Department of Public Health, Kobe University Graduate School of Health Sciences, Hyogo, Japan
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Indriati DW, Witaningrum AM, Yunifiar MQ, Khairunisa SQ, Ueda S, Kotaki T, Nasronudin N, Kameoka M. The Dominance of CRF01_AE and the Emergence of Drug Resistance Mutations Among Antiretroviral Therapy-Experienced, HIV-1-infected Individuals in Medan, Indonesia. Acta Med Indones 2020; 52:366-374. [PMID: 33377882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
BACKGROUND human immunodeficiency virus type 1 (HIV-1) infection is a serious public health threat worldwide. Medan is one example of big cities in Indonesia with a high prevalence of HIV-1 infection; however, quite a limited study had conducted for detecting the circulation of HIV-1 subtypes in Medan. In addition, a serious factor that can implicate the treatment of HIV-1-infected individuals is the emergence of drug resistance mutations. Thus, the information on HIV-1 infection is important to improve the treatment for infected individuals. METHODS sixty-seven antiretroviral therapy-experienced, HIV-1-infected individuals were recruited for this study. HIV-1 pol genes encoding protease (PR genes) and reverse transcriptase (RT gene), as well as env and gag genes, were amplified from DNA derived from peripheral blood samples. HIV-1 subtyping was conducted to study the dominant HIV-1 subtype circulating in the region. In addition, the emergence of drug resistance mutations was analyzed based on the guidelines published by the International Antiviral Society-United States of America (IAS-USA). RESULTS the dominant HIV-1 subtype found in Medan was CRF01_AE (77.6%). In addition, another subtype and recombinant viruses such as recombinants between CRF01_AE and subtype B (12.2%), subtype B (4.1%), and CRF02_AG (4.1%) were also found. Drug resistance-associated major mutations were found in 21.6% (8/37) of RT genes and 3.1% (1/32) of PR genes studied. CONCLUSION our study showed that the dominant subtype found in ART-experienced, HIV-1-infected individuals residing in Medan was CRF01_AE. The emergence of drug resistance mutations in RT and PR genes indicated the importance to monitor the prevalence of drug resistance mutations among HIV-1-infected individuals in Medan.
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Affiliation(s)
- Dwi Wahyu Indriati
- Department of Health, Faculty of Vocational Studies, Universitas Airlangga, Surabaya, Indonesia.
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Khairunisa SQ, Megasari NLA, Indriati DW, Kotaki T, Natalia D, Nasronudin, Kameoka M. Identification of HIV-1 subtypes and drug resistance mutations among HIV-1-infected individuals residing in Pontianak, Indonesia. Germs 2020; 10:174-183. [PMID: 33134195 DOI: 10.18683/germs.2020.1203] [Citation(s) in RCA: 3] [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: 03/10/2020] [Revised: 07/15/2020] [Accepted: 07/20/2020] [Indexed: 11/08/2022]
Abstract
Introduction The present study investigated the HIV-1 subtype classification in addition to prevalence of drug resistance mutations (DRMs) in antiretroviral therapy (ART)-experienced and ART-naïve residents of Pontianak, West Kalimantan, Indonesia. Methods Whole blood samples collected from 30 HIV-1-infected individuals, comprising 19 ART-experienced and 11 ART-naïve individuals, were subjected to RNA and DNA extraction, followed by HIV-1 genes amplification and sequencing analysis. HIV-1 subtyping was classified on viral pol genes encoding reverse transcriptase (RT gene) and protease (PR gene) accompanied by the env and gag genes. DRMs in the RT and PR genes were also analyzed. Results CRF01_AE was identified as the predominant circulating recombinant form (CRF) of HIV-1 in both ART-experienced and ART-naïve individuals. In addition, CRF02_AG, subtype B, recombinant virus expressing CRF01_AE and subtype B viral genomic fragments, also recombinant virus containing CRF01_AE and CRF02_AG genomic fragments were also identified. Acquired drug resistance (ADR) was identified in 28.5% of ART-experienced individuals, while no transmitted drug resistance was identified in ART-naïve individuals. Conclusions This study identified CRF01_AE as the most predominant HIV-1 CRF distributing in Pontianak, Indonesia. The prevalence of ADR is considered to be high; thus, further surveillance is needed in this region.
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Affiliation(s)
- Siti Qamariyah Khairunisa
- BSc, MSc, Doctoral Program - Faculty of Medicine, Universitas Airlangga, Surabaya 60286, Indonesia; Indonesian-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Universitas Airlangga, Surabaya 60115, Indonesia
| | - Ni Luh Ayu Megasari
- BSND, MTropMed, PhD, Indonesian-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Universitas Airlangga, Surabaya 60115, Indonesia
| | - Dwi Wahyu Indriati
- BSc, PhD, Indonesian-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Universitas Airlangga, Surabaya 60115, Indonesia
| | - Tomohiro Kotaki
- PhD, Assistant Professor, Division of Global Infectious Diseases, Department of Public Health, Kobe University Graduate School of Health Sciences, Kobe, Hyogo 654-0142, Japan
| | - Diana Natalia
- MD, Department of Parasitology, Faculty of Medicine, Universitas Tanjung Pura, Pontianak 78124, Indonesia
| | - Nasronudin
- MD, PhD, Professor, Faculty of Medicine, Universitas Airlangga, Surabaya 60115, Indonesia; Indonesian-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Universitas Airlangga, Surabaya 60115, Indonesia
| | - Masanori Kameoka
- PhD, Professor, Division of Global Infectious Diseases, Department of Public Health, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe, Hyogo 654-0142, Japan
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Khairunisa SQ, Megasari NLA, Rahayu RP, Witaningrum AM, Ueda S, Yunifiar M MQ, Indriati DW, Kotaki T, Rusli A, Nasronudin, Kameoka M. Detection of human immunodeficiency virus type 1 transmitted drug resistance among treatment-naive individuals residing in Jakarta, Indonesia. Infect Dis Rep 2020; 12:8740. [PMID: 32874468 PMCID: PMC7447941 DOI: 10.4081/idr.2020.8740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 07/01/2020] [Indexed: 12/02/2022] Open
Abstract
The presence of transmitted drug resistance (TDR) in human immunodeficiency virus type 1 (HIV-1) infected individuals naive to antiretroviral therapy, may affect the effectiveness of treatment. Jakarta, the capital city of Indonesia, recorded the highest number of cumulative HIV infection cases in the country. This study aimed to identify on the appearance of TDR, as well as to identify HIV-1 subtypes circulating among treatment-naive individuals in Jakarta. Whole blood samples collected from 43 HIV-1 infected, treatment-naive individuals. Viral subtyping and drug resistance testing were performed on HIV-1 pol genes amplified using nested polymerase chain reaction. CRF01_AE was detected most frequently in Jakarta (73.08%). Drug resistance-related major mutation was not detected in protease fragments of pol gene, but two major mutations, K103N (6.67%) and Y181C (6.67%), were detected in reverse transcriptase fragments of pol gene. Our results suggest that TDR was emerged in Jakarta at a certain extent, thus further surveillance study to monitor the TDR prevalence and circulating HIV-1 subtypes in this region is considered to be necessary.
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Affiliation(s)
- Siti Qamariyah Khairunisa
- Doctoral Program,Faculty of Medicine, Universitas Airlangga, Surabaya
- Indonesia-Japan Collaborative Research Centre for Emerging and Reemerging Infectious Diseases (CRCERI), Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
| | - Ni Luh Ayu Megasari
- Indonesia-Japan Collaborative Research Centre for Emerging and Reemerging Infectious Diseases (CRCERI), Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
| | - Retno Pudji Rahayu
- Indonesia-Japan Collaborative Research Centre for Emerging and Reemerging Infectious Diseases (CRCERI), Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
| | - Adiana Mutamsari Witaningrum
- Indonesia-Japan Collaborative Research Centre for Emerging and Reemerging Infectious Diseases (CRCERI), Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
| | - Shuhei Ueda
- Indonesia-Japan Collaborative Research Centre for Emerging and Reemerging Infectious Diseases (CRCERI), Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
- Department of Public Health
- Center for Infectious Diseases, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Muhammad Qushai Yunifiar M
- Indonesia-Japan Collaborative Research Centre for Emerging and Reemerging Infectious Diseases (CRCERI), Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
| | - Dwi Wahyu Indriati
- Indonesia-Japan Collaborative Research Centre for Emerging and Reemerging Infectious Diseases (CRCERI), Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
- Department of Health, Vocational Faculty
| | | | - Adria Rusli
- Sulianti Saroso Hospital, Jakarta, Indonesia
| | - Nasronudin
- Indonesia-Japan Collaborative Research Centre for Emerging and Reemerging Infectious Diseases (CRCERI), Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
- Airlangga Hospital, Universitas Airlangga, Surabaya, Indonesia
| | - Masanori Kameoka
- Indonesia-Japan Collaborative Research Centre for Emerging and Reemerging Infectious Diseases (CRCERI), Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
- Department of Public Health
- Center for Infectious Diseases, Kobe University Graduate School of Medicine, Hyogo, Japan
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18
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Sasaki M, Kotaki T, Khairunisa SQ, Tachibana S, Ophinni Y, Hayashi Y, Nasronudin, Kameoka M. Characterization of HIV-1 CRF01_AE env Genes Derived from Recently Infected Indonesian Individuals. AIDS Res Hum Retroviruses 2020; 36:242-247. [PMID: 31580700 DOI: 10.1089/aid.2019.0179] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 11/12/2022] Open
Abstract
To eradicate human immunodeficiency virus type 1 (HIV-1) infection, a comprehensive strategy including preventive vaccine development is needed. Envelope glycoproteins (Env) play a central role in viral infection and are the major targets of humoral immune responses. Therefore, Env is a candidate vaccine antigen, and its characterization is necessary for vaccine development. The characterization of the transmitted/founder (T/F; i.e., recently infected) virus that is responsible for the establishment of infection and induction of primary anti-HIV-1 immune responses is important. We herein established HIV-1 env clones derived from recently infected Indonesian individuals. All env genes were classified into CRF01_AE. The immunological characterization of env clones was performed by neutralization tests using a series of broadly neutralizing antibodies. The present study is the first to immunologically characterize the CRF01_AE T/F virus circulating in Indonesia.
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Affiliation(s)
- Maho Sasaki
- Department of Public Health, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Tomohiro Kotaki
- Department of Public Health, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Siti Qamariyah Khairunisa
- Indonesia-Japan Collaborative Research Centre for Emerging and Re-Emerging Infectious Diseases, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
| | - Shingo Tachibana
- Department of Public Health, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Youdiil Ophinni
- Division of Molecular Medicine & Medical Genetics, Department of Pathology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yoshitake Hayashi
- Division of Molecular Medicine & Medical Genetics, Department of Pathology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Nasronudin
- Indonesia-Japan Collaborative Research Centre for Emerging and Re-Emerging Infectious Diseases, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
- Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia
- Airlangga Hospital, Surabaya, Indonesia
| | - Masanori Kameoka
- Department of Public Health, Kobe University Graduate School of Health Sciences, Kobe, Japan
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Sasaki H, Kotaki T, Fujimori A, Tsukamoto T, Suzuki E, Oishi Y, Shibasaki Y. Excellent performance of aromatic polyguanamines induced by multiple hydrogen bondable tetraazacalix[2]arene[2]-triazine ring in their main chain. RSC Adv 2020; 10:1361-1370. [PMID: 35494688 PMCID: PMC9047533 DOI: 10.1039/c9ra09136j] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 12/19/2019] [Indexed: 11/21/2022] Open
Abstract
A series of poly(guanamine) (c-PG)s containing tetraazacalix[2]arene[2]-triazine (mPDA2CyC2) were successfully prepared by solution polycondensation of mPDA2CyC2 with various aromatic diamines in an aprotic organic solvent with a lithium chloride additive (5 wt%) at 150 °C for 6 hours. The number-average molecular weights (Mn)s of these c-PG polymers reached up to 31 500, with a relatively broad molecular weight distribution (Mw/Mn) of 5.3. They showed good solubility in aprotic organic solvents, such as N-methylpyrrolidone and N,N-dimethylacetamide at a concentration of 2 mg mL−1. The glass transition temperatures (Tg) of the c-PG polymers were in the range 359 °C–392 °C, approximately 160 °C higher than those of counterpart polymers (i.e., with no aza-calixarene-based PG (l-PG)). The coefficients of thermal expansion (CTEs) of the c-PG polymers were 29.7–48.1 ppm K−1 (at 100 °C–150 °C), much lower than those of l-PG samples, i.e., 59.1–85.1 ppm K−1. Transparent and almost colorless c-PG films were successfully prepared by a solution casting method, showing maximum tensile strength (σS), modulus (Eγ), and elongation at break (Eb) values of 151 MPa, 6.3 GPa, and 4.4%, respectively, for the c-PG polymer from mPDA2CyC2 and 4,4′-oxydianiline monomers. The corresponding l-PG film exhibited σS, Eγ, and Eb values of just 76 MPa, 5.4 GPa, and 1.6%, respectively. These outstanding thermal and mechanical properties of the c-PG polymers can be attributed to their multiple hydrogen bonding interaction between mPDA2CyC2 residues in the polymer backbone. This interaction was identified by infrared spectroscopy measurements at the broad absorption band around 3000–3400 cm−1. Poly(guanamine)s containing tetraazacalix[2]arene[2]triazine ring within the polymer main-chain show outstanding thermal and mechanical properties arisen from the multiple-hydrogen bond.![]()
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Affiliation(s)
- H Sasaki
- Department of Chemistry & Biological Sciences, Faculty of Science & Engineering, Iwate University 4-3-5 Ueda Morioka Iwate 020-8551 Japan
| | - T Kotaki
- Department of Chemistry & Biological Sciences, Faculty of Science & Engineering, Iwate University 4-3-5 Ueda Morioka Iwate 020-8551 Japan
| | - A Fujimori
- Graduate School of Science and Engineering, Saitama University 255 Shimo-okubo, Sakura-ku Saitama 338-8570 Japan
| | - T Tsukamoto
- Department of Chemistry & Biological Sciences, Faculty of Science & Engineering, Iwate University 4-3-5 Ueda Morioka Iwate 020-8551 Japan
| | - E Suzuki
- Department of Chemistry & Biological Sciences, Faculty of Science & Engineering, Iwate University 4-3-5 Ueda Morioka Iwate 020-8551 Japan
| | - Y Oishi
- Department of Chemistry & Biological Sciences, Faculty of Science & Engineering, Iwate University 4-3-5 Ueda Morioka Iwate 020-8551 Japan
| | - Y Shibasaki
- Department of Chemistry & Biological Sciences, Faculty of Science & Engineering, Iwate University 4-3-5 Ueda Morioka Iwate 020-8551 Japan
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20
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Ueda S, Witaningrum AM, Khairunisa SQ, Kotaki T, Motomura K, Nasronudin, Kameoka M. Transmission dynamics of HIV-1 subtype B strains in Indonesia. Sci Rep 2019; 9:13986. [PMID: 31562375 PMCID: PMC6764962 DOI: 10.1038/s41598-019-50491-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 09/13/2019] [Indexed: 11/09/2022] Open
Abstract
Human immunodeficiency virus type 1 (HIV-1) and acquired immunodeficiency syndrome (AIDS) represent a major public health concern in Indonesia. Although circulating recombinant form (CRF) 01_AE is a predominant subtype in Indonesia, HIV-1 subtype B (HIV-1B) is also widely prevalent. However, the viral genetic evolution, spatial origins, and patterns of transmission of HIV-1B in Indonesia remain unclear. In the present study, we described the evolutionary characteristics and spatial-temporal transmission networks of HIV-1B in Indonesia. To elucidate the epidemiological link between HIV-1B epidemics in Indonesia and those in the remainder of the world, we conducted phylogenetic analyses of HIV-1B strains in Indonesia. Based on the results obtained, at least three epidemic clades [the Indonesia, United States (US), and China clades] of HIV-1B were found to be prevalent in Indonesia. In order to identify the potential source and transmission route of Indonesian HIV-1B strains, we performed Bayesian analyses and constructed Maximum clade credibility trees of each clade. Although some HIV-1B strains in Indonesia were introduced from Thailand, the prevalent HIV-1B strains appeared to have been directly introduced from Europe or America. Indonesian HIV-1B may have spread via the main dispersal of pandemic HIV-1B strains via the US from the Caribbean region rather than being directly introduced from Africa.
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Affiliation(s)
- Shuhei Ueda
- Department of Public Health, Kobe University Graduate School of Health Sciences, Hyogo, Japan.,Center for Infectious Diseases, Kobe University Graduate School of Medicine, Hyogo, Japan.,Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
| | - Adiana Mutamsari Witaningrum
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
| | - Siti Qamariyah Khairunisa
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
| | - Tomohiro Kotaki
- Department of Public Health, Kobe University Graduate School of Health Sciences, Hyogo, Japan.,Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
| | | | - Nasronudin
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia.,Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia.,Airlangga Hospital, Surabaya, Indonesia
| | - Masanori Kameoka
- Department of Public Health, Kobe University Graduate School of Health Sciences, Hyogo, Japan. .,Center for Infectious Diseases, Kobe University Graduate School of Medicine, Hyogo, Japan.
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21
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Oka T, Negi BS, Ueda S, Sasaki M, Kotaki T, Kameoka M. Genotypic Characterization of HIV-1 Subtype C in the Central Region of Nepal. AIDS Res Hum Retroviruses 2019; 35:870-875. [PMID: 31154824 DOI: 10.1089/aid.2019.0105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Human immunodeficiency virus type 1 (HIV-1) is a major causative agent of acquired immune deficiency syndrome. Subtype C (HIV-1C) is the most prevalent HIV-1 subtype worldwide. Although it is highly prevalent in Nepal, genotypic information on Nepalese HIV-1C is limited. We herein investigated the origin and dynamics of HIV-1C in Nepal. Nearly full-length sequencing of Nepalese HIV-1C strains and phylogenetic analyses were performed. The results obtained showed that Nepalese HIV-1C is closely related to the Indian and southern African strains and the introduction of HIV-1C into Nepal was estimated to be in the mid-1980s. These results suggest that multiple HIV-1C strains entered Nepal in the mid-1980s, and this was followed by a marked increase in the number of infection cases for the next decade. These results reflect the current transmission dynamics of HIV-1C strains in Nepal and provide valuable information for HIV monitoring and vaccine development.
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Affiliation(s)
- Tatsuya Oka
- Department of Public Health, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Baharat Singh Negi
- Department of Public Health, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Shuhei Ueda
- Department of Public Health, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Maho Sasaki
- Department of Public Health, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Tomohiro Kotaki
- Department of Public Health, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Masanori Kameoka
- Department of Public Health, Kobe University Graduate School of Health Sciences, Kobe, Japan
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22
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Megasari NLA, Oktafiani D, Ana EF, Ueda S, Kotaki T, Nasronudin, Soetjipto, Kameoka M. Genotypic Characterization of Human Immunodeficiency Virus Type 1 Isolated from Antiretroviral Treatment-Experienced Individuals in Buleleng Regency, Bali, Indonesia. AIDS Res Hum Retroviruses 2019; 35:769-774. [PMID: 31112033 DOI: 10.1089/aid.2019.0058] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 11/12/2022] Open
Abstract
Bali, the first province to report a case of HIV in 1987, was placed sixth among Indonesian provinces with the highest cumulative number of HIV cases in 2017. As a popular tourist destination, the spread of genetic variants of HIV through international travel may become a cause for concern in Bali. Tourism is mostly concentrated in south Bali; thus, HIV in less popular regions in north Bali, such as Buleleng Regency, may have viral characteristics different from that in south Bali. Forty-three protease (PR), 40 reverse transcriptase (RT), 27 gag, and 23 env genes were sequenced from 48 samples derived from antiretroviral treatment-experienced individuals. Subtyping revealed CRF01_AE as the dominant circulating recombinant form of HIV-1 in north Bali. Although no major mutation was detected in PR genes, several major mutations were identified in 4 out of the 40 RT genes (10%), indicating the emergence of HIV-1 drug resistance in this region.
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Affiliation(s)
| | - Devi Oktafiani
- Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia
| | - Elsa Fitri Ana
- Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia
| | - Shuhei Ueda
- Indonesia-Japan Collaborative Research Centre for Emerging and Re-Emerging Infectious Diseases, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
- Department of Public Health, Kobe University Graduate School of Health Sciences, Hyogo, Japan
| | - Tomohiro Kotaki
- Department of Public Health, Kobe University Graduate School of Health Sciences, Hyogo, Japan
| | - Nasronudin
- Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia
- Indonesia-Japan Collaborative Research Centre for Emerging and Re-Emerging Infectious Diseases, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
| | - Soetjipto
- Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia
- Indonesia-Japan Collaborative Research Centre for Emerging and Re-Emerging Infectious Diseases, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
| | - Masanori Kameoka
- Department of Public Health, Kobe University Graduate School of Health Sciences, Hyogo, Japan
- Center for Infectious Diseases, Kobe University Graduate School of Medicine, Hyogo, Japan
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23
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Ophinni Y, Inoue M, Kotaki T, Kameoka M, Hayashi Y. CRISPR/Cas9 targeting HIV-1 regulatory genes inactivates latent proviral DNA and prevents new infection in T cell culture with inhibition of viral escape. J Virus Erad 2019. [DOI: 10.1016/s2055-6640(20)31056-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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24
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Megasari NLA, Oktafiani D, Fitriana E, Khairunisa SQ, Kotaki T, Ueda S, Nasronudin N, Soetjipto S, Kameoka M. The Emergence of HIV-1 Transmitted Drug Resistance Mutations Among Antiretroviral Therapy-naive Individuals in Buleleng, Bali, Indonesia. Acta Med Indones 2019; 51:197-204. [PMID: 31699942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
BACKGROUND the global scale-up of antiretroviral therapy (ART) is the primary factor contributing to the decline in deaths from acquired immune deficiency syndrome (AIDS)-related illnesses. However, the emergence of transmitted drug resistance (TDR) compromises the effects of ART in treatment-naïve individuals, which may hinder treatment success. The present study aimed to identify the presence of TDR among treatment-naive individuals in Buleleng, Bali, which is currently ranked sixth among Indonesian provinces with the highest cumulative human immunodeficiency virus type 1 (HIV-1) infection cases. METHODS thirty-nine ART-naive individuals in Buleleng Regency General Hospital were enrolled in the present study. Blood samples from participants were subjected to a genotypic analysis. RESULTS 28 protease (PR) and 30 reverse transcriptase (RT) genes were successfully amplified and sequenced from 37 samples. HIV-1 subtyping revealed CRF01_AE as the dominant circulating recombinant form in the region. No TDR for PR inhibitors was detected; however, TDR for RT inhibitors was identified in five out of 30 samples (16.7%). CONCLUSION these results indicate the emergence of TDR among ART-naive individuals in Buleleng, Bali. This issue warrants serious consideration because TDR may hamper treatment success and reduce ART efficacy among newly diagnosed individuals. Continuous surveillance with a larger sample size is necessary to monitor TDR among ART-naive individuals.
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Indriati DW, Kotaki T, Khairunisa SQ, Witaningrum AM, Matondang MQY, Ueda S, Nasronudin, Purnama A, Kurniawan D, Kameoka M. Appearance of Drug Resistance Mutations Among the Dominant HIV-1 Subtype, CRF01_AE in Maumere, Indonesia. Curr HIV Res 2019; 16:158-166. [PMID: 29732988 DOI: 10.2174/1570162x16666180502114344] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 04/17/2018] [Accepted: 04/24/2018] [Indexed: 11/22/2022]
Abstract
BACKGROUND AND OBJECTIVES Human Immunodeficiency Virus (HIV) is still a major health issue in Indonesia. In recent years, the appearance of drug resistance-associated mutations has reduced the effectiveness of Antiretroviral Therapy (ART). We conducted genotypic studies, including the detection of drug resistance-associated mutations (from first-line regimen drugs), on HIV-1 genes derived from infected individuals in Maumere, West Nusa Tenggara. Maumere, a transit city in West Nusa Tenggara, which has a high HIV-1 transmission rate. METHOD We collected 60 peripheral blood samples from 53 ART-experienced and 7 ART-naive individuals at TC Hillers Hospital, Maumere between 2014 and 2015. The amplification and a sequencing analysis of pol genes encoding protease (the PR gene) and reverse transcriptase (the RT gene) as well as the viral env and gag genes were performed. HIV-1 subtyping and the detection of drug resistance-associated mutations were then conducted. RESULTS Among 60 samples, 46 PR, 31 RT, 30 env, and 20 gag genes were successfully sequenced. The dominant HIV-1 subtype circulating in Maumere was CRF01_AE. Subtype B and recombinant viruses containing gene fragments of CRF01_AE, subtypes A, B, C, and/or G were also identified as minor populations. The major drug resistance-associated mutations, M184V, K103N, Y188L, and M230I, were found in the RT genes. However, no major drug resistance-associated mutations were detected in the PR genes. CONCLUSION CRF01_AE was the major HIV-1 subtype prevalent in Maumere. The appearance of drug resistance-associated mutations found in the present study supports the necessity of monitoring the effectiveness of ART in Maumere.
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Affiliation(s)
- Dwi Wahyu Indriati
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Disease, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia.,Department of Health, Faculty of Vocational Studies, Universitas Airlangga, Surabaya, Indonesia
| | - Tomohiro Kotaki
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Disease, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia.,Department of International Health, Kobe University Graduate School of Health Sciences, Hyogo, Japan
| | - Siti Qamariyah Khairunisa
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Disease, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
| | - Adiana Mutamsari Witaningrum
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Disease, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
| | - Muhammad Qushai Yunifiar Matondang
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Disease, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
| | - Shuhei Ueda
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Disease, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia.,Department of International Health, Kobe University Graduate School of Health Sciences, Hyogo, Japan
| | - Nasronudin
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Disease, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia.,Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia
| | | | | | - Masanori Kameoka
- Department of International Health, Kobe University Graduate School of Health Sciences, Hyogo, Japan.,Center for Infectious Diseases, Kobe University, Graduate School of Medicine, Hyogo, Japan
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Ueda S, Witaningrum AM, Khairunisa SQ, Kotaki T, Nasronudin, Kameoka M. Genetic Diversity and Drug Resistance of HIV-1 Circulating in North Sulawesi, Indonesia. AIDS Res Hum Retroviruses 2019; 35:407-413. [PMID: 30229669 DOI: 10.1089/aid.2018.0221] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 11/12/2022] Open
Abstract
Manado, the capital city of North Sulawesi, is a unique region in Indonesia because of its religion. We collected peripheral blood samples from 63 individuals on antiretroviral therapy. The amplification of viral genomic fragments, viral subtyping, detection of HIV drug resistance-associated mutations (DRAMs), and phylogenetic analyses were performed. Viral subtyping revealed that the most prevalent HIV type 1 (HIV-1) subtype/circulating recombinant form (CRF) was CRF01_AE (84.1%), followed by subtype B (6.8%) and recombinants between CRF01_AE and CRF02_AG (4.5%). Although no major DRAMs were present in protease genes, they were detected in reverse transcriptase (RT) genes. Nine of 38 samples (23.7%) had major DRAMs against nucleoside RT inhibitors (NRTIs) and/or non-NRTIs. The results of phylogenetic analyses indicated that CRF01_AE in North Sulawesi is related to that in Bali. Therefore, Bali may play an important role in circulating CRF01_AE in North Sulawesi.
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Affiliation(s)
- Shuhei Ueda
- Department of Public Health, Kobe University Graduate School of Health Sciences, Hyogo, Japan
- Center for Infectious Diseases, Kobe University Graduate School of Medicine, Hyogo, Japan
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia
| | - Adiana Mutamsari Witaningrum
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia
| | - Siti Qamariyah Khairunisa
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia
| | - Tomohiro Kotaki
- Department of Public Health, Kobe University Graduate School of Health Sciences, Hyogo, Japan
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia
| | - Nasronudin
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia
- Faculty of Medicine, Airlangga University, Surabaya, Indonesia
- Airlangga Hospital, Surabaya, Indonesia
| | - Masanori Kameoka
- Department of Public Health, Kobe University Graduate School of Health Sciences, Hyogo, Japan
- Center for Infectious Diseases, Kobe University Graduate School of Medicine, Hyogo, Japan
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27
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Mita Y, Shigemura K, Osawa K, Kitagawa K, Kotaki T, Shirakawa T, Miyara T, Fujisawa M. Clinical Risk Factors for Death Caused by Extended-Spectrum Beta-Lactamase: Producing Bacteria. Urol Int 2019; 102:205-211. [PMID: 30602152 DOI: 10.1159/000495314] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 11/12/2018] [Indexed: 11/19/2022]
Abstract
OBJECTIVES Extended-spectrum beta-lactamase (ESBL)-producing bacteria often causes bacteremia, leading serious outcomes. In this study, we conducted a retrospective analysis to identify the risk factors associated with death by bacteremia of ESBL-producing bacteria. METHODS Patients with bacteremia by ESBL-producing bacteria were retrospectively collected in Kobe University Hospital, Japan, between January 2011 and December 2015. Potential risk factors for death caused by ESBL-bacteremia were analyzed for patients' outcome (recovery or death) by univariate and multivariate analysis. RESULTS A total of 101 patients (64 male and 37 female) were recruited. The most frequently detected ESBL-producing bacteria were Escherichia coli (91 cases; 90.1%), followed by Klebsiella pneumoniae (8 cases; 7.9%). Most frequently used antibiotics after the detection of bacteremia was meropenem (66.3%; 67/101) followed by cefmetazole (51.5%; 52/101). Univariate analysis showed a significantly positive correlation with mortality in ICU admission (p < 0.001), circulatory diseases (p = 0.022), shock (p = 0.044), and respirator requirement (p = 0.002). Multivariate analysis showed ICU admission remained significant risk factor for mortality (p = 0.0192). CONCLUSIONS We showed ICU admission was significantly correlated with death from bacteremia by ESBL-producing bacteria. These factors should be monitored to estimate severity of ESBL causing-bacteremia for better patients' outcomes.
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Affiliation(s)
- Yoshie Mita
- Division of Urology, Department of Organ Therapeutics, Faculty of Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Katsumi Shigemura
- Division of Urology, Department of Organ Therapeutics, Faculty of Medicine, Kobe University Graduate School of Medicine, Kobe, Japan, .,Department of Infection Control and Prevention, Kobe University Hospital, Kobe, Japan, .,Division of Infectious Diseases, Department of International Health, Kobe University Graduate School of Health Sciences, Kobe, Japan,
| | - Kayo Osawa
- Division of Infectious Diseases, Department of International Health, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Koichi Kitagawa
- Division of Infectious Diseases, Department of International Health, Kobe University Graduate School of Health Sciences, Kobe, Japan.,Division of Advanced Medical Science, Kobe University Graduate School of Science, Technology and Innovation, Kobe, Japan
| | - Tomohiro Kotaki
- Department of Infection Control and Prevention, Kobe University Hospital, Kobe, Japan.,Division of Infectious Diseases, Department of International Health, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Toshiro Shirakawa
- Division of Urology, Department of Organ Therapeutics, Faculty of Medicine, Kobe University Graduate School of Medicine, Kobe, Japan.,Division of Infectious Diseases, Department of International Health, Kobe University Graduate School of Health Sciences, Kobe, Japan.,Division of Advanced Medical Science, Kobe University Graduate School of Science, Technology and Innovation, Kobe, Japan
| | - Takayuki Miyara
- Department of Infection Control and Prevention, Kobe University Hospital, Kobe, Japan
| | - Masato Fujisawa
- Division of Urology, Department of Organ Therapeutics, Faculty of Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
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Negi BS, Joshi SK, Nakazawa M, Kotaki T, Bastola A, Kameoka M. Impact of a massive earthquake on adherence to antiretroviral therapy, mental health, and treatment failure among people living with HIV in Nepal. PLoS One 2018; 13:e0198071. [PMID: 29889840 PMCID: PMC5995447 DOI: 10.1371/journal.pone.0198071] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 05/13/2018] [Indexed: 11/18/2022] Open
Abstract
INTRODUCTION The April 2015 Nepal earthquake resulted in more than 8,700 deaths and 22,000 casualties including damage to health facilities. The impact of this situation on chronic conditions such as human immunodeficiency virus infection and acquired immune deficiency syndrome (HIV/AIDS) may become a long-lasting public health threat. Therefore, the objectives of this study were i) to assess the association of antiretroviral therapy (ART) adherence with mental health problems, and social behaviors, ii) to examine factors affecting treatment failure, and iii) to investigate changes in ART adherence and post-traumatic stress disorder (PTSD) among people living with HIV 6 and 12 months after the disaster. METHODS Study was conducted 6 months after the earthquake in 2015 with a sample size of 305 earthquake victims with HIV and followed after 12 months of the earthquake. A logistic regression analysis was used to examine relationships, while a paired t-test analysis was conducted to assess changes in adherence to ART and PTSD level at 6 months and 12 months after earthquake. RESULTS In the earthquake, 5.2% of the participants lost their family member. Approximately 44% of participants had earthquake-PTSD symptoms and 50% experienced HIV stigma. PTSD and HIV status disclosure were significantly associated with adherence to ART, while HIV stigma and religion were associated with treatment failure. PTSD and adherence levels to ART were significantly improved over the 6-month period. CONCLUSION Awareness programs for general public to eliminate HIV stigma; promote psychosocial counseling to earthquake victims living with HIV in order to reduce PTSD will contribute to maintaining optimal ART adherence and to prevent treatment failure.
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Affiliation(s)
- Bharat Singh Negi
- Department of International Health, Kobe University Graduate School of Health Sciences, Hyogo, Japan
- * E-mail:
| | - Sunil Kumar Joshi
- Department of Community Medicine, Kathmandu Medical College, Kathmandu, Nepal
| | - Minato Nakazawa
- Department of International Health, Kobe University Graduate School of Health Sciences, Hyogo, Japan
| | - Tomohiro Kotaki
- Department of International Health, Kobe University Graduate School of Health Sciences, Hyogo, Japan
| | - Anup Bastola
- Sukraraj Tropical and Infectious Disease Hospital, Kathmandu, Nepal
| | - Masanori Kameoka
- Department of International Health, Kobe University Graduate School of Health Sciences, Hyogo, Japan
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Shibasaki Y, Kotaki T, Bito T, Sasahara R, Idutsu N, Fujimori A, Miura S, Shidara Y, Nishimura N, Oishi Y. Synthesis of semicrystalline poly(guanamine)s based on 2-substituted-4,6-dichloro-1,3,5-triazine with α, ω-alkylene diamines, and the formation of cyclic tetramers. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.05.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Khairunisa SQ, Ueda S, Witaningrum AM, Yunifiar Matondang MQ, Indriati DW, Kotaki T, Nasronudin, Kameoka M. Genotypic Characterization of Human Immunodeficiency Virus Type 1 Prevalent in Kepulauan Riau, Indonesia. AIDS Res Hum Retroviruses 2018; 34:555-560. [PMID: 29589465 DOI: 10.1089/aid.2018.0040] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [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: 11/13/2022] Open
Abstract
Kepulauan Riau is a famous tourist destination in Indonesia. The epidemic of human immunodeficiency virus type 1 (HIV-1) infection is gradually increasing in this region. We collected peripheral blood samples from 62 antiretroviral therapy-experienced individuals. The amplification of viral genomic fragments, HIV-1 subtyping, and the detection of HIV drug resistance (HIVDR) were performed. Viral subtyping revealed that the most prevalent HIV-1 subtype/circulating recombinant form (CRF) was CRF01_AE (55.6%), followed by recombinants between CRF01_AE and subtype B (17.8%) and then subtype B (15.6%). Recombinants containing CRF02_AG gene fragments were also detected (11.1%). Regarding HIVDR, no drug resistance-associated major mutations were found in pol genes encoding protease, although minor mutations were frequently detected. Furthermore, major mutations, including M184V (2.2%) and Y188L (2.2%), were identified in the viral pol gene encoding reverse transcriptase derived from a study participant, suggesting that the prevalence of HIVDR is low in the region.
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Affiliation(s)
- Siti Qamariyah Khairunisa
- Indonesian-Japan Collaborative Research Center for Emerging and Re-Emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia
| | - Shuhei Ueda
- Indonesian-Japan Collaborative Research Center for Emerging and Re-Emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia
- Center for Infectious Diseases, Kobe University Graduate School of Medicine, Hyogo, Japan
- Department of International Health, Kobe University Graduate School of Health Sciences, Hyogo, Japan
| | - Adiana Mutamsari Witaningrum
- Indonesian-Japan Collaborative Research Center for Emerging and Re-Emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia
| | - Muhammad Qushai Yunifiar Matondang
- Indonesian-Japan Collaborative Research Center for Emerging and Re-Emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia
| | - Dwi Wahyu Indriati
- Indonesian-Japan Collaborative Research Center for Emerging and Re-Emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia
- Department of Health, Faculty of Vocational Studies, Airlangga University, Surabaya, Indonesia
| | - Tomohiro Kotaki
- Indonesian-Japan Collaborative Research Center for Emerging and Re-Emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia
- Department of International Health, Kobe University Graduate School of Health Sciences, Hyogo, Japan
| | - Nasronudin
- Indonesian-Japan Collaborative Research Center for Emerging and Re-Emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia
- Faculty of Medicine, Airlangga University, Surabaya, Indonesia
- Airlangga University Hospital, Surabaya, Indonesia
| | - Masanori Kameoka
- Center for Infectious Diseases, Kobe University Graduate School of Medicine, Hyogo, Japan
- Department of International Health, Kobe University Graduate School of Health Sciences, Hyogo, Japan
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Ophinni Y, Inoue M, Kotaki T, Kameoka M. CRISPR/Cas9 system targeting regulatory genes of HIV-1 inhibits viral replication in infected T-cell cultures. Sci Rep 2018; 8:7784. [PMID: 29773895 PMCID: PMC5958087 DOI: 10.1038/s41598-018-26190-1] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 05/08/2018] [Indexed: 01/06/2023] Open
Abstract
The CRISPR/Cas9 system provides a novel and promising tool for editing the HIV-1 proviral genome. We designed RNA-guided CRISPR/Cas9 targeting the HIV-1 regulatory genes tat and rev with guide RNAs (gRNA) selected from each gene based on CRISPR specificity and sequence conservation across six major HIV-1 subtypes. Each gRNA was cloned into lentiCRISPRv2 before co-transfection to create a lentiviral vector and transduction into target cells. CRISPR/Cas9 transduction into 293 T and HeLa cells stably expressing Tat and Rev proteins successfully abolished the expression of each protein relative to that in non-transduced and gRNA-absent vector-transduced cells. Tat functional assays showed significantly reduced HIV-1 promoter-driven luciferase expression after tat-CRISPR transduction, while Rev functional assays revealed abolished gp120 expression after rev-CRISPR transduction. The target gene was mutated at the Cas9 cleavage site with high frequency and various indel mutations. Conversely, no mutations were detected at off-target sites and Cas9 expression had no effect on cell viability. CRISPR/Cas9 was further tested in persistently and latently HIV-1-infected T-cell lines, in which p24 levels were significantly suppressed even after cytokine reactivation, and multiplexing all six gRNAs further increased efficiency. Thus, the CRISPR/Cas9 system targeting HIV-1 regulatory genes may serve as a favorable means to achieve functional cures.
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Affiliation(s)
- Youdiil Ophinni
- Center for Infectious Diseases, Kobe University Graduate School of Medicine, Hyogo, 650-0017, Japan
| | - Mari Inoue
- Department of International Health, Kobe University Graduate School of Health Sciences, Hyogo, 654-0142, Japan
| | - Tomohiro Kotaki
- Department of International Health, Kobe University Graduate School of Health Sciences, Hyogo, 654-0142, Japan
| | - Masanori Kameoka
- Center for Infectious Diseases, Kobe University Graduate School of Medicine, Hyogo, 650-0017, Japan. .,Department of International Health, Kobe University Graduate School of Health Sciences, Hyogo, 654-0142, Japan.
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Korenaga T, Kowata R, Kotaki T, Shibasaki Y, Oishi Y, Shimada K. Moderately Flexible Trans-Chelating Diphosphine Ligands Consisting of a Triazine Unit Showing High Ligand Acceleration Effect for Heck Reaction. BCSJ 2018. [DOI: 10.1246/bcsj.20170392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Toshinobu Korenaga
- Department of Chemistry and Biological Sciences, Faculty of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate 020-8551
| | - Ryo Kowata
- Department of Chemistry and Biological Sciences, Faculty of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate 020-8551
| | - Tomohiro Kotaki
- Department of Chemistry and Biological Sciences, Faculty of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate 020-8551
| | - Yuji Shibasaki
- Department of Chemistry and Biological Sciences, Faculty of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate 020-8551
| | - Yoshiyuki Oishi
- Department of Chemistry and Biological Sciences, Faculty of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate 020-8551
| | - Kazuaki Shimada
- Department of Chemistry and Biological Sciences, Faculty of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate 020-8551
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Sucipto TH, Churrotin S, Setyawati H, Martak F, Mulyatno KC, Amarullah IH, Kotaki T, Kameoka M, Yotopranoto S, Soegijanto AS. A NEW COPPER (II)-IMIDAZOLE DERIVATIVE EFFECTIVELY INHIBITS REPLICATION OF DENV-2 IN VERO CELL. Afr J Infect Dis 2018; 12:116-119. [PMID: 29619441 PMCID: PMC5876766 DOI: 10.2101/ajid.12v1s.17] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Revised: 08/18/2017] [Accepted: 08/18/2017] [Indexed: 11/29/2022] Open
Abstract
Background: Dengue is a kind of infectious disease that was distributed in the tropical and sub-tropical areas. To date, there is no clinically approved dengue vaccine or antiviral for humans, even though there have been great efforts towards this end. Therefore, finding the effective compound against dengue virus (DENV) replication is very important. Among the complex compounds, copper(II)-imidazole derivatives are of interest because of their biological and medicinal benefits. Materials and Methods: In the present study, antiviral activity of [Cu(2,4,5-triphenylimidazole)2]n, was evaluated against different stages of dengue virus type 2 (DENV-2) replication in Vero cell using focus forming unit reduction assay and quantitative ELISA. Results: [Cu(2,4,5-triphenylimidazole)2]n inhibited DENV-2 replication in Vero cells with IC50 = 2.3 μg/ml and SI= 19.42 when cells were treated 2 days after virus infection, whereas its CC50 for cytotoxicity to Vero cells was 44.174 μg/ml. Conclusion: The compound has high anti-DENV2 activity, less toxicity, and a high possibility to be considered a drug candidate.
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Affiliation(s)
- Teguh Hari Sucipto
- Dengue Study Group, Institute of Tropical Disease, Airlangga University, Kampus C Jl. Mulyorejo, Surabaya, East Java, Indonesia, 60115
| | - Siti Churrotin
- Dengue Study Group, Institute of Tropical Disease, Airlangga University, Kampus C Jl. Mulyorejo, Surabaya, East Java, Indonesia, 60115
| | - Harsasi Setyawati
- Department of Chemistry, Faculty of Science and Technology, Airlangga University, Kampus C Jl. Mulyorejo, Surabaya, East Java, Indonesia, 60115
| | - Fahimah Martak
- Department of Chemistry, Faculty of Mathematic and Natural Science, Sepuluh Nopember Institute of Technology, Kampus Sukolilo Jl. Raya ITS, Surabaya, East Java, Indonesia, 60111
| | - Kris Cahyo Mulyatno
- Dengue Study Group, Institute of Tropical Disease, Airlangga University, Kampus C Jl. Mulyorejo, Surabaya, East Java, Indonesia, 60115
| | - Ilham Harlan Amarullah
- Dengue Study Group, Institute of Tropical Disease, Airlangga University, Kampus C Jl. Mulyorejo, Surabaya, East Java, Indonesia, 60115
| | - Tomohiro Kotaki
- Department of International Health, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe, Hyogo 654-0142, Japan
| | - Masanori Kameoka
- Department of International Health, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe, Hyogo 654-0142, Japan
| | - Subagyo Yotopranoto
- Dengue Study Group, Institute of Tropical Disease, Airlangga University, Kampus C Jl. Mulyorejo, Surabaya, East Java, Indonesia, 60115
| | - And Soegeng Soegijanto
- Dengue Study Group, Institute of Tropical Disease, Airlangga University, Kampus C Jl. Mulyorejo, Surabaya, East Java, Indonesia, 60115
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Hari Sucipto T, Churrotin S, Setyawati H, Martak F, Mulyatno KC, Amarullah IH, Kotaki T, Kameoka M, Yotopranoto S, Soegijanto S. A NEW COPPER (II)-IMIDAZOLE DERIVATIVE EFFECTIVELY INHIBITS REPLICATION OF DENV-2 IN VERO CELL. Afr J Infect Dis 2018. [DOI: 10.21010/ajid.v12i1s.17] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Khairunisa SQ, Masyeni S, Witaningrum AM, M. MQY, Indriati DW, Kotaki T, Ueda S, Budiyasa DG, Nasronudin N, Kameoka M. Genotypic characterization of human immunodeficiency virus type 1 isolated in Bali, Indonesia in 2016. hivar 2018; 17:81-90. [DOI: 10.5114/hivar.2018.76375] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2023] Open
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Sucipto TH, Churrotin S, Setyawati HS, Mulyatno KC, Amarullah IH, Ueda S, Kotaki T, Sumarsih S, Wardhani P, Bendryman SS, Aryati A, Soegijanto S, Kameoka M. INHIBITORY ACTIVITY OF COBALT(II)–MORIN COMPLEX AGAINST THE REPLICATION OF DENGUE VIRUS TYPE 2. IJTID 2017. [DOI: 10.20473/ijtid.v6i6.6126] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Dengue virus (DENV) is a significant pathogen emerging worldwide as a cause of infectious disease. Antidengue treatments are urgently required to control the emergence of dengue. DENV is a mosquito-borne disease responsible for acute systemic diseases and serious health conditions. DENVs were distributed in the tropical and sub-tropical areas and transmitted to humans by Aedes agypty and Aedes albopictus. Dengue vaccine or antiviral has not yet been clinically approved for humans, even though there have been great efforts toward this end. Antiviral activity against DENV is an important alternative for the characterization and development of drugs. Metal–organic compounds were reported to exhibit fungicidal, bactericidal, and antiviral activities its inhibitory activity was not significant, at high concentration it was more toxic to replicating cells than to stationary cell monolayers of Vero cells. The aim of this study is to investigate the antiviral effects of Cobalt(II)–Morin complex. This compound was further investigated for its inhibitory effect on the replication of DENV-2 in Vero cells. The replication of DENV was measured by enzyme-linked immunosorbent assay and the value of selectivity index (SI). SI was determined as the ratio of the 50% cytotoxic concentration (CC50) to the 50% inhibitory concentration (IC50). The IC50 value of the Cobalt(II)–Morin complex for DENV-2 was 3.08 µg/ml, and the CC50 value of the complex for Vero cells was 3.36 µg/ml; thus, the SI value was 1.09. The results of this study demonstrate the antidengue serotype 2 inhibitory activity of Cobalt(II)–Morin complex and its high toxicity in Vero cells. Further studies are not required before Co(II)–Morin can be applied in the treatment of DENV-2 infections.
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Tachibana S, Sasaki M, Tanaka T, Inoue M, Ophinni Y, Kotaki T, Kameoka M. A 2-4-Amino Acid Deletion in the V5 Region of HIV-1 Env gp120 Confers Viral Resistance to the Broadly Neutralizing Human Monoclonal Antibody, VRC01. AIDS Res Hum Retroviruses 2017; 33:1248-1257. [PMID: 28903577 DOI: 10.1089/aid.2017.0063] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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: 11/12/2022] Open
Abstract
The envelope glycoprotein (Env) gp120 of human immunodeficiency virus type 1 (HIV-1) plays a critical role in viral entry into host cells. The broadly neutralizing human monoclonal antibody VRC01, which recognizes the CD4 binding site on gp120, neutralizes more than 90% of HIV-1 isolates. However, some of the CRF01_AE viruses prevalent in Southeast Asia are resistant to VRC01-mediated neutralization. We previously reported that 3 amino acid residues at positions 185, 186, and 197 of gp120 played an important role in the VRC01 resistance of CRF01_AE Env (AE-Env) clones isolated from HIV-infected Thai individuals. However, the VRC01 susceptibility of AE-Env clones was not fully explained by mutations at these 3 residues. In the present study, we examined other factors involved in the acquisition of viral VRC01 resistance. Neutralization tests using lentiviral vectors expressing a series of mutant AE-Env clones revealed that the deletion of 2-4 amino acid residues on the loop structure in the V5 region of gp120 conferred VRC01 resistance to several AE-Env clones. Our results provide novel insights into the mechanisms underlying viral VRC01 resistance.
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Affiliation(s)
- Shingo Tachibana
- Department of International Health, Kobe University Graduate School of Health Sciences, Kobe University, Kobe, Japan
| | - Maho Sasaki
- Department of International Health, Kobe University Graduate School of Health Sciences, Kobe University, Kobe, Japan
| | - Takako Tanaka
- Medical Technology Major, Kobe University School of Medicine Faculty of Health Sciences, School of Medicine, Kobe University, Kobe, Japan
| | - Mari Inoue
- Department of International Health, Kobe University Graduate School of Health Sciences, Kobe University, Kobe, Japan
| | - Youdiil Ophinni
- Division of Vaccinology, Center for Infectious Diseases, Kobe University Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Tomohiro Kotaki
- Department of International Health, Kobe University Graduate School of Health Sciences, Kobe University, Kobe, Japan
| | - Masanori Kameoka
- Department of International Health, Kobe University Graduate School of Health Sciences, Kobe University, Kobe, Japan
- Division of Vaccinology, Center for Infectious Diseases, Kobe University Graduate School of Medicine, Kobe University, Kobe, Japan
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Mulyatno KC, Kotaki T, Yotopranoto S, Rohmah EA, Churotin S, Sucipto TH, Amarullah IH, Wardhani P, Soegijanto S, Kameoka M. Detection and Serotyping of Dengue Viruses in Aedes aegypti and Aedes albopictus (Diptera: Culicidae) Collected in Surabaya, Indonesia from 2008 to 2015. Jpn J Infect Dis 2017; 71:58-61. [PMID: 29093315 DOI: 10.7883/yoken.jjid.2017.117] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Aedes aegypti and Aedes albopictus are the primary and secondary vectors, respectively, of dengue, the most important arboviral disease in the world. The aim of this study was to detect and serotype dengue viruses (DENV) in the vectors Ae. aegypti and Ae. albopictus in Surabaya, Indonesia. Between 2008 and 2015, 16,605 Aedes mosquitoes were collected in 15 sub-districts of Surabaya. Ae. aegypti was dominant (90.9%), whereas few Ae. albopictus were collected (9.1%). A total of 330 pools of adult Aedes mosquitoes were subjected to the serotyping of DENV by RT-PCR. DENV-1 (52.3%) was the most frequently detected serotype, followed by DENV-2 (40.3%), DENV-4 (4.6%), and DENV-3 (2.8%). The average minimum infection rate for Ae. aegypti in various sub-districts of Surabaya was 7.2 per 1,000 mosquitoes, while that for Ae. albopictus was 0.7 per 1,000 mosquitoes. The results showed that the predominantly circulating DENV serotype in mosquitoes continuously shifted from DENV-2 (2008) to DENV-1 (2009-2012), to DENV-2 again (2013-2014), and then back to DENV-1 (2015). The circulating DENV serotypes in mosquitoes were generally consistent with those in humans. Therefore, the surveillance of infected mosquitoes with DENV might provide an early warning sign for the risk of future dengue outbreaks.
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Affiliation(s)
- Kris Cahyo Mulyatno
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University.,Institute of Tropical Disease, Airlangga University
| | - Tomohiro Kotaki
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University.,Center of Infectious Diseases, Kobe University Graduate School of Medicine.,Department of International Health, Kobe University Graduate School of Health Sciences
| | - Subagyo Yotopranoto
- Institute of Tropical Disease, Airlangga University.,Faculty of Medicine, Airlangga University
| | | | - Siti Churotin
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University.,Institute of Tropical Disease, Airlangga University
| | - Teguh Hari Sucipto
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University.,Institute of Tropical Disease, Airlangga University
| | | | - Puspa Wardhani
- Institute of Tropical Disease, Airlangga University.,Faculty of Medicine, Airlangga University
| | - Soegeng Soegijanto
- Institute of Tropical Disease, Airlangga University.,Faculty of Medicine, Airlangga University
| | - Masanori Kameoka
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University.,Center of Infectious Diseases, Kobe University Graduate School of Medicine.,Department of International Health, Kobe University Graduate School of Health Sciences
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Negi BS, Kotaki T, Joshi SK, Bastola A, Nakazawa M, Kameoka M. Genotypic Characterization of Human Immunodeficiency Virus Type 1 Derived from Antiretroviral Drug-Treated Individuals Residing in Earthquake-Affected Areas in Nepal. AIDS Res Hum Retroviruses 2017; 33:960-965. [PMID: 28298145 DOI: 10.1089/aid.2017.0047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 11/13/2022] Open
Abstract
Molecular epidemiological data on human immunodeficiency virus type 1 (HIV-1) are limited in Nepal and have not been available in areas affected by the April 2015 earthquake. Therefore, we conducted a genotypic study on HIV-1 genes derived from individuals on antiretroviral therapy residing in 14 districts in Nepal highly affected by the earthquake. HIV-1 genomic fragments were amplified from 40 blood samples of HIV treatment-failure individuals, and a sequencing analysis was performed on these genes. In the 40 samples, 29 protease, 32 reverse transcriptase, 25 gag, and 21 env genes were sequenced. HIV-1 subtyping revealed that subtype C (84.2%, 32/38) was the major subtype prevalent in the region, while CRF01_AE (7.9%, 3/38) and other recombinant forms (7.9%, 3/38) were also detected. In addition, major drug resistance mutations were identified in 21.9% (7/32) of samples, indicating the possible emergence of HIV-1 drug resistance in earthquake-affected areas in Nepal.
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Affiliation(s)
- Bharat Singh Negi
- Department of International Health, Kobe University Graduate School of Health Sciences, Hyogo, Japan
| | - Tomohiro Kotaki
- Department of International Health, Kobe University Graduate School of Health Sciences, Hyogo, Japan
| | - Sunil Kumar Joshi
- Department of Community Medicine, Kathmandu Medical College, Kathmandu, Nepal
| | - Anup Bastola
- Sukraraj Tropical and Infectious Disease Hospital, Kathmandu, Nepal
| | - Minato Nakazawa
- Department of International Health, Kobe University Graduate School of Health Sciences, Hyogo, Japan
| | - Masanori Kameoka
- Department of International Health, Kobe University Graduate School of Health Sciences, Hyogo, Japan
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Sucipto TH, Churrotin S, Setyawati H, Kotaki T, Martak F, Soegijanto S. ANTIVIRAL ACTIVITY OF COPPER(II)CHLORIDE DIHYDRATE AGAINST DENGUE VIRUS TYPE-2 IN VERO CELL. IJTID 2017. [DOI: 10.20473/ijtid.v6i4.3806] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Infection of dengue virus (DENV) was number of globally significant emerging pathogen. Antiviral dengue therapies ar importantly needed to control emerging dengue. Dengue virus (DENV) is mosquito-borne arboviruses responsible for causing acute systemic diseases and grievous health conditions in humans. To date, there is no clinically approved dengue vaccine or antiviral for humans, even though there have been great efforts towards this end. Copper and copper compounds have more effective in inactivation viruses, likes an influenza virus and human immunodeficiency virus (HIV). Purpose in this project was investigated of Copper(II)chloride Dihydrate antiviral compound were further tested for inhibitory effect on the replication of DENV-2 in cell culture. DENV replication was measures by Enzyme linked Immunosorbent Assay (ELISA) with selectivity index value (SI) was determined as the ratio of cytotoxic concentration 50 (CC50) to inhibitory concentration 50 (IC50) for compound. The maximal inhibitory concentration (IC50) of Copper(II)chloride Dihydrate against dengue virus type-2 was 0.13 μg/ml. The cytotoxic concentration (CC50) of compound against Vero cell was 5.03 μg/ml. The SI values for Copper(II)chloride Dihydrate 38.69. Result of this study suggest that Copper(II)chloride Dihydrate demonstated significant anti-DENV-2 inhibitory activities and not toxic in the Vero cells. Copper mechanisms play an important role in the prevention of copper toxicity, exposure to excessive levels of copper can result in a number of adverse health effects, as a result increased reactive oxygen species and oxidative damage to lipid, DNA, and proteins have been observed in human cell culture models or clinical syndromes of severe copper deficiency and inhibition was attributed to released cupric ions which react with cysteine residues on the surface of the protease.
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Yunifiar MQ, Kotaki T, Witaningrum AM, Khairunisa SQ, Indriati DW, Meilani M, Yeheskiel T, Ueda S, Nasronudin N, Kameoka M. Sero- and Molecular Epidemiology of HIV-1 in Papua Province, Indonesia. Acta Med Indones 2017; 49:205-214. [PMID: 29093230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
BACKGROUND human immunodeficiency virus (HIV) infection and acquired immune deficiency syndrome (AIDS) cause serious health problems and affect the Indonesian economy. Papua province has the highest prevalence of HIV infection in the country; however, epidemiological data are limited. Therefore, in order to reveal the current situation of HIV/AIDS in Papua province, sero- and molecular epidemiological studies of HIV were conducted. METHODS serological tests were conducted on 157 healthy individuals from the general population residing in Paniai, Papua. In addition, a molecular epidemiological study was then conducted on HIV type 1 (HIV-1) genes derived from infected individuals. Peripheral blood samples from HIV-1-positive individuals and 15 additionally enrolled, previously confirmed HIV-1-positive individuals were subjected to a genotypic analysis. RESULTS serological tests revealed that 2 out of 157 (1.27%) healthy individuals were HIV-positive. In addition, HIV-1 subtyping revealed that subtype B and CRF01_AE were the major subtype and circulating recombinant form (CRF) of HIV-1 prevalent in the region, while subtype A1 and a recombinant form including viral gene fragments of CRF01_AE and subtype B was also detected. In addition, HIV drug resistance-associated major mutations were detected in the reverse transcriptase gene derived from infected individual on antiretroviral therapy. CONCLUSION these results provide important information for clearer understanding on the current situation of HIV/AIDS in Papua province in Indonesia.
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Affiliation(s)
- Muhammad Qushai Yunifiar
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia.
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Tokimatsu I, Shigemura K, Kotaki T, Yoshikawa H, Yamamichi F, Tomo T, Arakawa S, Fujisawa M, Kadota JI. A Prospective Study of the Efficacy, Safety and Pharmacokinetics of Enteral Moxifloxacin in the Treatment of Hemodialysis Patients with Pneumonia. Intern Med 2017; 56:1315-1319. [PMID: 28566592 PMCID: PMC5498193 DOI: 10.2169/internalmedicine.56.8369] [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] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Objectives To investigate the efficacy of oral moxifloxacin (MFLX) as a treatment for pneumonia in hemodialysis (HD) patients and the pharmacokinetic (PK) profile of MFLX after oral administration. Methods Thirteen adult patients who required HD due to chronic renal failure were enrolled in the present study, which was performed to investigate the treatment of community-acquired pneumonia in HD patients. A standard dose of MFLX (400 mg, once daily) was administered. The therapy was continued, discontinued, or switched to another antibiotic depending on the response of the pneumonia to MFLX. A population PK model was developed using the post-hoc method. Results In total, 13 HD patients with pneumonia (male, n=7; female, n=6) were enrolled in the present study. The evaluation on the 3rd day showed that treatment was successful in 11 patients (84.6%) and that 10 patients were cured (76.9%). In the one case in which MFLX treatment failed, the patient was cured by switching to ceftriaxone (CTRX) (2 g, intravenously) plus levofloxacin (LVFX) (250 mg, orally). The causative bacterium in this male patient was P. aeruginosa. It did not display resistance to fluoroquinolones. One patient had liver dysfunction due to MFLX. The estimated PK parameters of MFLX were as follows: AUC0→24, 61.04±17.74 μg h/mL; Cmax, 5.25±1.12 μg/mL; and Ctrough, 1.15±0.45 μg/mL. The PK parameters of MFLX among the patients in whom adverse events occurred or in whom a cure was not achieved did not differ from those of the other patients to a statistically significant extent. Conclusion MFLX showed good efficacy and safety in HD patients with community-acquired pneumonia and the results of the PK analysis were favorable. Further prospective studies with larger numbers of patients will be needed to draw definitive conclusions.
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Affiliation(s)
- Issei Tokimatsu
- Department of Infection Prevention and Control, Kobe University Hospital, Japan
| | - Katsumi Shigemura
- Department of Infection Prevention and Control, Kobe University Hospital, Japan
- Department of Urology, Kobe University Graduate School of Medicine, Japan
- Division of Infectious Diseases, Department of International Health, Kobe University Graduate School of Health Science, Japan
| | - Tomohiro Kotaki
- Department of Infection Prevention and Control, Kobe University Hospital, Japan
- Division of Infectious Diseases, Department of International Health, Kobe University Graduate School of Health Science, Japan
| | - Hiroki Yoshikawa
- Department of Respiratory Medicine and Infectious Diseases, Oita University, Faculty of Medicine, Japan
| | - Fukashi Yamamichi
- Department of Urology, Hyogo Prefectural Amagasaki General Medical Center, Japan
| | - Tadashi Tomo
- Blood Purification Center, Oita University Hospital, Japan
| | | | - Masato Fujisawa
- Department of Urology, Kobe University Graduate School of Medicine, Japan
| | - Jun-Ichi Kadota
- Department of Respiratory Medicine and Infectious Diseases, Oita University, Faculty of Medicine, Japan
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Witaningrum AM, Kotaki T, Khairunisa SQ, Yunifiar M MQ, Indriati DW, Bramanthi R, Nasronudin, Kameoka M. Genotypic Characterization of Human Immunodeficiency Virus Type 1 Derived from Antiretroviral Therapy-Naive Individuals Residing in Sorong, West Papua. AIDS Res Hum Retroviruses 2016; 32:812-7. [PMID: 27009513 DOI: 10.1089/aid.2016.0054] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Papua and West Papua provinces have the highest prevalence rate of human immunodeficiency virus type 1 (HIV-1) infection in Indonesia; however, data on the molecular epidemiology of HIV-1 are limited. We conducted a genotypic study on HIV-1 genes derived from antiretroviral therapy-naive individuals residing in Sorong, West Papua. HIV-1 genomic fragments were amplified from 43 peripheral blood samples, and sequencing analysis of the genes was carried out. Of the 43 samples, 41 protease (PR), 31 reverse transcriptase (RT), 26 gag, and 25 env genes were sequenced. HIV-1 subtyping revealed that CRF01_AE (48.8%, 21/43) and subtype B (41.9%, 18/43) were the major subtypes prevalent in the region, whereas other recombinant forms were also detected. Major drug resistance-associated mutations for PR inhibitors were not detected; however, mutations for the RT inhibitors, A62V and E138A, appeared in a few samples, indicating the possible emergence of transmitted HIV-1 drug resistance in Sorong, West Papua.
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Affiliation(s)
- Adiana Mutamsari Witaningrum
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia
| | - Tomohiro Kotaki
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia
- Department of International Health, Kobe University Graduate School of Health Sciences, Hyogo, Japan
| | - Siti Qamariyah Khairunisa
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia
| | - Muhammad Qushai Yunifiar M
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia
| | - Dwi Wahyu Indriati
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia
| | | | - Nasronudin
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia
- Faculty of Medicine, Airlangga University, Surabaya, Indonesia
| | - Masanori Kameoka
- Department of International Health, Kobe University Graduate School of Health Sciences, Hyogo, Japan
- Center for Infectious Diseases, Kobe University Graduate School of Medicine, Hyogo, Japan
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Churrotin S, Kotaki T, Sucipto TH, Ahwanah NLF, Deka PT, Mulyatno KC, Utami DAP, Ranasasmita R, Soegijanto S, Kameoka M. Dengue Virus Type 1 Strain Isolated in Indonesia Shows a Close Phylogenetic Relation with the Strains That Caused the Autochthonous Dengue Outbreak in Japan in 2014. Jpn J Infect Dis 2016; 69:442-4. [PMID: 27000455 DOI: 10.7883/yoken.jjid.2015.516] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Siti Churrotin
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University
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Kotaki T, Nishimura N, Ozawa M, Fujimori A, Muraoka H, Ogawa S, Korenaga T, Suzuki E, Oishi Y, Shibasaki Y. Synthesis of highly refractive and highly fluorescent rigid cyanuryl polyimines with polycyclic aromatic hydrocarbon pendants. Polym Chem 2016. [DOI: 10.1039/c5py01920f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of rigid cyanuryl polyimines, polyguanamines (PGs) bearing polycyclic aromatic hydrocarbon pendants were successfully synthesized from 2-substituted 4,6-dichloro-1,3,5-triazine and aromatic diamine monomers.
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Fahmi MZ, Sukmayani W, Khairunisa SQ, Witaningrum AM, Indriati DW, Matondang MQY, Chang JY, Kotaki T, Kameoka M. Design of boronic acid-attributed carbon dots on inhibits HIV-1 entry. RSC Adv 2016. [DOI: 10.1039/c6ra21062g] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
The development of gp120 targeted human immunodeficiency virus (HIV) drug has improved antiretroviral therapies owing to its effects on attachment to target cells.
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Affiliation(s)
- M. Z. Fahmi
- Department of Chemistry
- Airlangga University
- Surabaya 61115
- Indonesia
- Institute of Tropical Disease
| | - W. Sukmayani
- Department of Chemistry
- Airlangga University
- Surabaya 61115
- Indonesia
| | | | - A. M. Witaningrum
- Institute of Tropical Disease
- Airlangga University
- Surabaya 61115
- Indonesia
| | - D. W. Indriati
- Institute of Tropical Disease
- Airlangga University
- Surabaya 61115
- Indonesia
- Department of Health
| | - M. Q. Y. Matondang
- Institute of Tropical Disease
- Airlangga University
- Surabaya 61115
- Indonesia
| | - J.-Y. Chang
- Department of Chemical Engineering
- National Taiwan University of Science and Technology
- Taipei 10607
- Republic of China
| | - T. Kotaki
- Center of Infectious Disease
- Graduate School of Medicine
- Kobe University
- Hyogo 654-0142
- Japan
| | - M. Kameoka
- Department of International Health
- Kobe University Graduate School of Health Science
- Kobe 654-0142
- Japan
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Ansori A, Sucipto T, Deka P, Ahwanah N, Churrotin S, Kotaki T, Soegijanto S. Differences of Universal and Multiplex Primer for Detection of Dengue Virus from Patients Suspected Dengue Hemorrhagic Fever (DHF) in Surabaya. Indonesian J of Tropical and Infectious Dis 2015. [DOI: 10.20473/ijtid.v5i6.594] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Yamanaka A, Oddgun D, Chantawat N, Okabayashi T, Ramasoota P, Churrotin S, Kotaki T, Kameoka M, Soegijanto S, Konishi E. Dengue virus infection-enhancing antibody activities against Indonesian strains in inhabitants of central Thailand. Microbes Infect 2015; 18:277-84. [PMID: 26645957 DOI: 10.1016/j.micinf.2015.11.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Revised: 11/10/2015] [Accepted: 11/15/2015] [Indexed: 12/30/2022]
Abstract
Dengue virus (DENV) infection-enhancing antibodies are a hypothetic factor to increase the dengue disease severity. In this study, we investigated the enhancing antibodies against Indonesian strains of DENV-1-4 in 50 healthy inhabitants of central Thailand (Bangkok and Uthai Thani). Indonesia and Thailand have seen the highest dengue incidence in Southeast Asia. The infection history of each subject was estimated by comparing his/her neutralizing antibody titers against prototype DENV-1-4 strains. To resolve the difficulty in obtaining foreign live viruses for use as assay antigens, we used a recombinant system to prepare single-round infectious dengue viral particles based on viral sequence information. Irrespective of the previously infecting serotype(s), most serum samples showed significantly higher enhancement titers against Indonesian DENV-2 strains than against Thai DENV-2 strains, whereas the opposite effect was observed for the DENV-3 strains. Equivalent enhancing activities were observed against both DENV-1 and DENV-4. These results suggest that the genotype has an impact on enhancing antibody activities against DENV-2 and DENV-3, because the predominant circulating genotypes of each serotype differ between Indonesia and Thailand.
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Affiliation(s)
- Atsushi Yamanaka
- BIKEN Endowed Department of Dengue Vaccine Development, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand; BIKEN Endowed Department of Dengue Vaccine Development, Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan.
| | - Duangjai Oddgun
- BIKEN Endowed Department of Dengue Vaccine Development, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand; BIKEN Endowed Department of Dengue Vaccine Development, Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
| | - Nantarat Chantawat
- Mahidol-Osaka Center for Infectious Diseases, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand; Mahidol-Osaka Center for Infectious Diseases, Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
| | - Tamaki Okabayashi
- Mahidol-Osaka Center for Infectious Diseases, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand; Mahidol-Osaka Center for Infectious Diseases, Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
| | - Pongrama Ramasoota
- Center of Excellence for Antibody Research, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand.
| | - Siti Churrotin
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya 60015, Indonesia
| | - Tomohiro Kotaki
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya 60015, Indonesia; Department of International Health, Kobe University Graduate School of Health Sciences, Hyogo 654-0142, Japan
| | - Masanori Kameoka
- Department of International Health, Kobe University Graduate School of Health Sciences, Hyogo 654-0142, Japan
| | - Soegeng Soegijanto
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya 60015, Indonesia
| | - Eiji Konishi
- BIKEN Endowed Department of Dengue Vaccine Development, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand; BIKEN Endowed Department of Dengue Vaccine Development, Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
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Kotaki T, Yamanaka A, Mulyatno KC, Churrotin S, Sucipto TH, Labiqah A, Ahwanah NLF, Soegijanto S, Kameoka M, Konishi E. Divergence of the dengue virus type 2 Cosmopolitan genotype associated with two predominant serotype shifts between 1 and 2 in Surabaya, Indonesia, 2008-2014. Infect Genet Evol 2015; 37:88-93. [PMID: 26553170 DOI: 10.1016/j.meegid.2015.11.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Revised: 10/30/2015] [Accepted: 11/03/2015] [Indexed: 12/30/2022]
Abstract
Indonesia is one of the biggest dengue endemic countries, and, thus, is an important place to investigate the evolution of dengue virus (DENV). We have continuously isolated DENV in Surabaya, the second biggest city in Indonesia, since 2008. We previously reported sequential changes in the predominant serotype from DENV type 2 (DENV-2) to DENV type 1 (DENV-1) in November 2008 and from DENV-1 to DENV-2 in July 2013. The predominance of DENV-2 continued in 2014, but not in 2015. We herein phylogenetically investigated DENV-2 transitions in Surabaya between 2008 and 2014 to analyze the divergence and evolution of DENV-2 concomitant with serotype shifts. All DENV-2 isolated in Surabaya were classified into the Cosmopolitan genotype, and further divided into 6 clusters. Clusters 1-3, dominated by Surabaya strains, were defined as the "Surabaya lineage". Clusters 4-6, dominated by strains from Singapore, Malaysia, and many parts of Indonesia, were the "South East Asian lineage". The most recent common ancestor of these strains existed in 1988, coinciding with the time that an Indonesian dengue outbreak took place. Cluster 1 appeared to be unique because no other DENV-2 isolate was included in this cluster. The predominance of DENV-2 in 2008 and 2013-14 were caused by cluster 1, whereas clusters 2 and 3 sporadically emerged in 2011 and 2012. The characteristic amino acids of cluster 1, E-170V and E-282Y, may be responsible for its prevalence in Surabaya. No amino acid difference was observed in the envelope region between strains in 2008 and 2013-14, suggesting that the re-emergence of DENV-2 in Surabaya was due to the loss or decrease of herd immunity in the 5-year period when DENV-2 subsided. The South East Asian lineage primarily emerged in Surabaya in 2014, probably imported from other parts of Indonesia or foreign countries.
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Affiliation(s)
- Tomohiro Kotaki
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Jl, Mulyorejo, Surabaya 60115, Indonesia; Center for Infectious Diseases, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo 650-0017, Japan; Department of International Health, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe, Hyogo 654-0142, Japan.
| | - Atsushi Yamanaka
- BIKEN Endowed Department of Dengue Vaccine Development, Faculty of Tropical Medicine, Mahidol University, 420/6 Ratchawithi Road, Ratchathewi, Bangkok 10400, Thailand; BIKEN Endowed Department of Dengue Vaccine Development, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamadaoka, Suita, Osaka 565-0871, Japan(1)
| | - Kris Cahyo Mulyatno
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Jl, Mulyorejo, Surabaya 60115, Indonesia
| | - Siti Churrotin
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Jl, Mulyorejo, Surabaya 60115, Indonesia
| | - Teguh Hari Sucipto
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Jl, Mulyorejo, Surabaya 60115, Indonesia
| | - Amaliah Labiqah
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Jl, Mulyorejo, Surabaya 60115, Indonesia
| | - Nur Laila Fitriati Ahwanah
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Jl, Mulyorejo, Surabaya 60115, Indonesia
| | - Soegeng Soegijanto
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Jl, Mulyorejo, Surabaya 60115, Indonesia
| | - Masanori Kameoka
- Center for Infectious Diseases, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo 650-0017, Japan; Department of International Health, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe, Hyogo 654-0142, Japan
| | - Eiji Konishi
- BIKEN Endowed Department of Dengue Vaccine Development, Faculty of Tropical Medicine, Mahidol University, 420/6 Ratchawithi Road, Ratchathewi, Bangkok 10400, Thailand; BIKEN Endowed Department of Dengue Vaccine Development, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamadaoka, Suita, Osaka 565-0871, Japan(1)
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Rahayu RP, Nasronudin N, Indrawati R, Widiyanti P, Lukito BD, Ferdiansyah F, Khairunisa SQ, Mutamsari A, Kotaki T. ANALYSI S ON SECONDARY I NFECTI ON- TRI GGERI NG MICROORGANISMS IN HIV/AIDS PATIENTS AS A MODEL FOR POLICY CONTROL. IJTID 2015. [DOI: 10.20473/ijtid.v5i4.2016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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