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Tamura T, Ito H, Torii S, Wang L, Suzuki R, Tsujino S, Kamiyama A, Oda Y, Tsuda M, Morioka Y, Suzuki S, Shirakawa K, Sato K, Yoshimatsu K, Matsuura Y, Iwano S, Tanaka S, Fukuhara T. Akaluc bioluminescence offers superior sensitivity to track in vivo dynamics of SARS-CoV-2 infection. iScience 2024; 27:109647. [PMID: 38638572 PMCID: PMC11025001 DOI: 10.1016/j.isci.2024.109647] [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] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 02/25/2024] [Accepted: 03/27/2024] [Indexed: 04/20/2024] Open
Abstract
Monitoring in vivo viral dynamics can improve our understanding of pathogenicity and tissue tropism. Because the gene size of RNA viruses is typically small, NanoLuc is the primary choice for accommodation within viral genome. However, NanoLuc/Furimazine and also the conventional firefly luciferase/D-luciferin are known to exhibit relatively low tissue permeability and thus less sensitivity for visualization of deep tissue including lungs. Here, we demonstrated in vivo sufficient visualization of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection using the pair of a codon-optimized Akaluc and AkaLumine. We engineered the codon-optimized Akaluc gene possessing the similar GC ratio of SARS-CoV-2. Using the SARS-CoV-2 recombinants carrying the codon-optimized Akaluc, we visualized in vivo infection of respiratory organs, including the tissue-specific differences associated with particular variants. Additionally, we could evaluate the efficacy of antivirals by monitoring changes in Akaluc signals. Overall, we offer an effective technology for monitoring viral dynamics in live animals.
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Affiliation(s)
- Tomokazu Tamura
- Department of Microbiology and Immunology, Faculty of Medicine, Hokkaido University, Sapporo, Hokkaido 060-8638, Japan
- Institute for Vaccine Research and Development (IVReD), Hokkaido University, Sapporo, Hokkaido 001-0021, Japan
- One Health Research Center, Hokkaido University, Sapporo, Hokkaido 060-0818, Japan
| | - Hayato Ito
- Department of Microbiology and Immunology, Faculty of Medicine, Hokkaido University, Sapporo, Hokkaido 060-8638, Japan
| | - Shiho Torii
- Laboratory of Virus Control, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 565-0871, Japan
| | - Lei Wang
- Department of Cancer Pathology, Faculty of Medicine, Hokkaido University, Sapporo, Hokkaido 060-8638, Japan
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido 001-0021, Japan
| | - Rigel Suzuki
- Department of Microbiology and Immunology, Faculty of Medicine, Hokkaido University, Sapporo, Hokkaido 060-8638, Japan
- Institute for Vaccine Research and Development (IVReD), Hokkaido University, Sapporo, Hokkaido 001-0021, Japan
| | - Shuhei Tsujino
- Department of Microbiology and Immunology, Faculty of Medicine, Hokkaido University, Sapporo, Hokkaido 060-8638, Japan
| | - Akifumi Kamiyama
- Department of Microbiology and Immunology, Faculty of Medicine, Hokkaido University, Sapporo, Hokkaido 060-8638, Japan
| | - Yoshitaka Oda
- Department of Cancer Pathology, Faculty of Medicine, Hokkaido University, Sapporo, Hokkaido 060-8638, Japan
| | - Masumi Tsuda
- Department of Cancer Pathology, Faculty of Medicine, Hokkaido University, Sapporo, Hokkaido 060-8638, Japan
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido 001-0021, Japan
| | - Yuhei Morioka
- Department of Microbiology and Immunology, Faculty of Medicine, Hokkaido University, Sapporo, Hokkaido 060-8638, Japan
- Laboratory of Virus Control, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 565-0871, Japan
| | - Saori Suzuki
- Department of Microbiology and Immunology, Faculty of Medicine, Hokkaido University, Sapporo, Hokkaido 060-8638, Japan
- Institute for Vaccine Research and Development (IVReD), Hokkaido University, Sapporo, Hokkaido 001-0021, Japan
| | - Kotaro Shirakawa
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Kyoto 606-8501, Japan
| | - Kei Sato
- Division of Systems Virology, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, Tokyo, Tokyo 108-8639, Japan
- Graduate School of Medicine, The University of Tokyo, Tokyo, Tokyo 113-0033, Japan
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba 277-0882, Japan
- CREST, Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012, Japan
- International Research Center for Infectious Diseases, The Institute of Medical Science, The University of Tokyo, Tokyo, Tokyo 108-8639, Japan
- International Vaccine Design Center, The Institute of Medical Science, The University of Tokyo, Tokyo, Tokyo 108-8639, Japan
- Collaboration Unit for Infection, Joint Research Center for Human Retrovirus Infection, Kumamoto University, Kumamoto, Kumamoto 860-0811, Japan
| | - Kumiko Yoshimatsu
- Institute for Genetic Medicine, Hokkaido University, Sapporo, Hokkaido 060-0815, Japan
| | - Yoshiharu Matsuura
- Laboratory of Virus Control, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 565-0871, Japan
- Laboratory of Virus Control, Center for Infectious Disease Education and Research, Osaka University, Suita, Osaka 565-0871, Japan
| | - Satoshi Iwano
- Institute for Tenure Track Promotion, University of Miyazaki, Miyazaki, Miyazaki 889-2192, Japan
| | - Shinya Tanaka
- Department of Cancer Pathology, Faculty of Medicine, Hokkaido University, Sapporo, Hokkaido 060-8638, Japan
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido 001-0021, Japan
| | - Takasuke Fukuhara
- Department of Microbiology and Immunology, Faculty of Medicine, Hokkaido University, Sapporo, Hokkaido 060-8638, Japan
- Institute for Vaccine Research and Development (IVReD), Hokkaido University, Sapporo, Hokkaido 001-0021, Japan
- One Health Research Center, Hokkaido University, Sapporo, Hokkaido 060-0818, Japan
- Laboratory of Virus Control, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 565-0871, Japan
- AMED-CREST, Japan Agency for Medical Research and Development (AMED), Tokyo, Tokyo 100-0004, Japan
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Ueki H, Kiso M, Furusawa Y, Iida S, Yamayoshi S, Nakajima N, Imai M, Suzuki T, Kawaoka Y. Development of a Mouse-Adapted Reporter SARS-CoV-2 as a Tool for Two-Photon In Vivo Imaging. Viruses 2024; 16:537. [PMID: 38675880 PMCID: PMC11053786 DOI: 10.3390/v16040537] [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: 08/17/2023] [Revised: 03/25/2024] [Accepted: 03/26/2024] [Indexed: 04/28/2024] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) often causes severe viral pneumonia. Although many studies using mouse models have examined the pathogenicity of SARS-CoV-2, COVID-19 pathogenesis remains poorly understood. In vivo imaging analysis using two-photon excitation microscopy (TPEM) is useful for elucidating the pathology of COVID-19, providing pathological insights that are not available from conventional histological analysis. However, there is no reporter SARS-CoV-2 that demonstrates pathogenicity in C57BL/6 mice and emits sufficient light intensity for two-photon in vivo imaging. Here, we generated a mouse-adapted strain of SARS-CoV-2 (named MASCV2-p25) and demonstrated its efficient replication in the lungs of C57BL/6 mice, causing fatal pneumonia. Histopathologic analysis revealed the severe inflammation and infiltration of immune cells in the lungs of MASCV2-p25-infected C57BL/6 mice, not unlike that observed in COVID-19 patients with severe pneumonia. Subsequently, we generated a mouse-adapted reporter SARS-CoV-2 (named MASCV-Venus-p9) by inserting the fluorescent protein-encoding gene Venus into MASCV2-p25 and sequential lung-to-lung passages in C57BL/6 mice. C57BL/6 mice infected with MASCV2-Venus-p9 exhibited severe pneumonia. In addition, the TPEM of the lungs of the infected C57BL/6J mice showed that the infected cells emitted sufficient levels of fluorescence for easy observation. These findings suggest that MASCV2-Venus-p9 will be useful for two-photon in vivo imaging studies of the pathogenesis of severe COVID-19 pneumonia.
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Affiliation(s)
- Hiroshi Ueki
- Division of Virology, Institute of Medical Science, University of Tokyo, Tokyo 108-8639, Japan; (H.U.); (M.K.); (Y.F.); (S.Y.); (M.I.)
- Center for Global Viral Diseases, National Center for Global Health and Medicine Research Institute, Tokyo 162-8655, Japan
- Pandemic Preparedness, Infection and Advanced Research Center (UTOPIA), University of Tokyo, Minato-ku, Tokyo 108-8639, Japan; (S.I.); (N.N.); (T.S.)
| | - Maki Kiso
- Division of Virology, Institute of Medical Science, University of Tokyo, Tokyo 108-8639, Japan; (H.U.); (M.K.); (Y.F.); (S.Y.); (M.I.)
- Pandemic Preparedness, Infection and Advanced Research Center (UTOPIA), University of Tokyo, Minato-ku, Tokyo 108-8639, Japan; (S.I.); (N.N.); (T.S.)
| | - Yuri Furusawa
- Division of Virology, Institute of Medical Science, University of Tokyo, Tokyo 108-8639, Japan; (H.U.); (M.K.); (Y.F.); (S.Y.); (M.I.)
- Center for Global Viral Diseases, National Center for Global Health and Medicine Research Institute, Tokyo 162-8655, Japan
| | - Shun Iida
- Pandemic Preparedness, Infection and Advanced Research Center (UTOPIA), University of Tokyo, Minato-ku, Tokyo 108-8639, Japan; (S.I.); (N.N.); (T.S.)
- Department of Pathology, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Seiya Yamayoshi
- Division of Virology, Institute of Medical Science, University of Tokyo, Tokyo 108-8639, Japan; (H.U.); (M.K.); (Y.F.); (S.Y.); (M.I.)
- Center for Global Viral Diseases, National Center for Global Health and Medicine Research Institute, Tokyo 162-8655, Japan
- Pandemic Preparedness, Infection and Advanced Research Center (UTOPIA), University of Tokyo, Minato-ku, Tokyo 108-8639, Japan; (S.I.); (N.N.); (T.S.)
| | - Noriko Nakajima
- Pandemic Preparedness, Infection and Advanced Research Center (UTOPIA), University of Tokyo, Minato-ku, Tokyo 108-8639, Japan; (S.I.); (N.N.); (T.S.)
- Department of Pathology, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Masaki Imai
- Division of Virology, Institute of Medical Science, University of Tokyo, Tokyo 108-8639, Japan; (H.U.); (M.K.); (Y.F.); (S.Y.); (M.I.)
- Center for Global Viral Diseases, National Center for Global Health and Medicine Research Institute, Tokyo 162-8655, Japan
| | - Tadaki Suzuki
- Pandemic Preparedness, Infection and Advanced Research Center (UTOPIA), University of Tokyo, Minato-ku, Tokyo 108-8639, Japan; (S.I.); (N.N.); (T.S.)
- Department of Pathology, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Yoshihiro Kawaoka
- Division of Virology, Institute of Medical Science, University of Tokyo, Tokyo 108-8639, Japan; (H.U.); (M.K.); (Y.F.); (S.Y.); (M.I.)
- Center for Global Viral Diseases, National Center for Global Health and Medicine Research Institute, Tokyo 162-8655, Japan
- Pandemic Preparedness, Infection and Advanced Research Center (UTOPIA), University of Tokyo, Minato-ku, Tokyo 108-8639, Japan; (S.I.); (N.N.); (T.S.)
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI 53711, USA
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Carossino M, Izadmehr S, Trujillo JD, Gaudreault NN, Dittmar W, Morozov I, Balasuriya UBR, Cordon-Cardo C, García-Sastre A, Richt JA. ACE2 and TMPRSS2 distribution in the respiratory tract of different animal species and its correlation with SARS-CoV-2 tissue tropism. Microbiol Spectr 2024; 12:e0327023. [PMID: 38230954 PMCID: PMC10846196 DOI: 10.1128/spectrum.03270-23] [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: 09/07/2023] [Accepted: 12/08/2023] [Indexed: 01/18/2024] Open
Abstract
A wide range of animal species show variable susceptibility to SARS-CoV-2; however, host factors associated with varied susceptibility remain to be defined. Here, we examined whether susceptibility to SARS-CoV-2 and virus tropism in different animal species are dependent on the expression and distribution of the virus receptor angiotensin-converting enzyme 2 (ACE2) and the host cell factor transmembrane serine protease 2 (TMPRSS2). We cataloged the upper and lower respiratory tract of multiple animal species and humans in a tissue-specific manner and quantitatively evaluated the distribution and abundance of ACE2 and TMPRSS2 mRNA in situ. Our results show that: (i) ACE2 and TMPRSS2 mRNA are abundant in the conduction portion of the respiratory tract, (ii) ACE2 mRNA occurs at a lower abundance compared to TMPRSS2 mRNA, (iii) co-expression of ACE2-TMPRSS2 mRNAs is highest in those species with the highest susceptibility to SARS-CoV-2 infection (i.e., cats, Syrian hamsters, and white-tailed deer), and (iv) expression of ACE2 and TMPRSS2 mRNA was not altered following SARS-CoV-2 infection. Our results demonstrate that while specific regions of the respiratory tract are enriched in ACE2 and TMPRSS2 mRNAs in different animal species, this is only a partial determinant of susceptibility to SARS-CoV-2 infection.IMPORTANCESARS-CoV-2 infects a wide array of domestic and wild animals, raising concerns regarding its evolutionary dynamics in animals and potential for spillback transmission of emerging variants to humans. Hence, SARS-CoV-2 infection in animals has significant public health relevance. Host factors determining animal susceptibility to SARS-CoV-2 are vastly unknown, and their characterization is critical to further understand susceptibility and viral dynamics in animal populations and anticipate potential spillback transmission. Here, we quantitatively assessed the distribution and abundance of the two most important host factors, angiotensin-converting enzyme 2 and transmembrane serine protease 2, in the respiratory tract of various animal species and humans. Our results demonstrate that while specific regions of the respiratory tract are enriched in these two host factors, they are only partial determinants of susceptibility. Detailed analysis of additional host factors is critical for our understanding of the underlying mechanisms governing viral susceptibility and reservoir hosts.
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Affiliation(s)
- Mariano Carossino
- Department of Pathobiological Sciences and Louisiana Animal Disease Diagnostic Laboratory, School of Veterinary Medicine, Louisiana State University, Baton Rouge, Louisiana, USA
| | - Sudeh Izadmehr
- Department of Pathology, Molecular, and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Jessie D. Trujillo
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, Kansas, USA
| | - Natasha N. Gaudreault
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, Kansas, USA
| | - Wellesley Dittmar
- Department of Pathobiological Sciences and Louisiana Animal Disease Diagnostic Laboratory, School of Veterinary Medicine, Louisiana State University, Baton Rouge, Louisiana, USA
| | - Igor Morozov
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, Kansas, USA
| | - Udeni B. R. Balasuriya
- Department of Pathobiological Sciences and Louisiana Animal Disease Diagnostic Laboratory, School of Veterinary Medicine, Louisiana State University, Baton Rouge, Louisiana, USA
| | - Carlos Cordon-Cardo
- Department of Pathology, Molecular, and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Adolfo García-Sastre
- Department of Pathology, Molecular, and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Medicine, Division of Infectious Diseases, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Juergen A. Richt
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, Kansas, USA
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