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SARS-CoV-2 infection of human ACE2-transgenic mice causes severe lung inflammation and impaired function
Open accessAbstract
Although animal models have been evaluated for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, none have fully recapitulated the lung disease phenotypes seen in humans who have been hospitalized. Here, we evaluate transgenic mice expressing the human angiotensin I-converting enzyme 2 (ACE2) receptor driven by the cytokeratin-18 (K18) gene promoter (K18-hACE2) as a model of SARS-CoV-2 infection. Intranasal inoculation of SARS-CoV-2 in K18-hACE2 mice results in high levels of viral infection in lungs, with spread to other organs. A decline in pulmonary function occurs 4 days after peak viral titer and correlates with infiltration of monocytes, neutrophils and activated T cells. SARS-CoV-2-infected lung tissues show a massively upregulated innate immune response with signatures of nuclear factor-κB-dependent, type I and II interferon signaling, and leukocyte activation pathways. Thus, the K18-hACE2 model of SARS-CoV-2 infection shares many features of severe COVID-19 infection and can be used to define the basis of lung disease and test immune and antiviral-based countermeasures.
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“In a humanized transgenic mouse model, ACE2 was expressed in the heart and virus replication detected, but they did not observe cardiac inflammation. 181”
From COVID-19, Myocarditis and Pericarditis (2023) · cites this paper as [181]
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“These transgenic mice have a human ACE2 receptor which is the major cell entry receptor for SARS-CoV-216,17.”
From Efficacy of an unmodified bivalent mRNA vaccine against SARS-CoV-2 variants in female small animal models (2023) · cites this paper as [17]
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“Evaluation of viral load over time in the lungs indicated that infectious virus peaked on day 2 after infection and declined thereafter (Figure 1B), consistent with prior reports (20).”
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Accelerated Development of COVID-19 Vaccines: Technology Platforms, Benefits, and Associated Risks
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“Tg mice to study the immunological response following infection and the effect of WS (32, 56).”
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“the kinetics of expression seen at this late time point in previous studies (11).”
BackgroundResultDevelopment of potent and effective synthetic SARS-CoV-2 neutralizing nanobodies
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BackgroundResultInfluentialSelf-assembling short immunostimulatory duplex RNAs with broad-spectrum antiviral activity
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“tion), which cannot be compared head-to-head with relative quantification (29).”
BackgroundMethodResultInfluentialDelta (B1.617.2) variant of SARS-CoV-2 induces severe neurotropic patterns in K18-hACE2 mice
Yang, J.-H., Yang, M., Kim, D.-M., Kim, B., Tark, D., Kang, S., & Lee, G.-H. (2023) · Scientific Reports · doi:10.1038/s41598-023-29909-x · Cited by 24
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S100A8 may govern hyper‐inflammation in severe COVID‐19
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Eicosanoid signaling as a therapeutic target in middle-aged mice with severe COVID-19Preprint
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Advances in Transgenic Mouse Models to Study Infections by Human Pathogenic Viruses
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“Thus, virus-induced pathology shared many features with human COVID-19 disease [89,90].”
BackgroundKinetic Multi-omic Analysis of Responses to SARS-CoV-2 Infection in a Model of Severe COVID-19
Cantwell, A. M., Singh, H., Platt, M. P., Yu, Y., Lin, Y.-H., Ikeno, Y., Hubbard, G. B., Xiang, Y., González-Juarbe, N., & Dube, P. H. (2021) · Journal of Virology · doi:10.1128/jvi.01010-21 · Cited by 22
“IFNs along with the corresponding ISGs (33, 40).”
BackgroundInfluentialEffects of airway smooth muscle contraction and inflammation on lung tissue compliance
Boucher, M., Henry, C., Khadangi, F., Dufour-Mailhot, A., Tremblay-Pitre, S., Fereydoonzad, L., Brunet, D., Robichaud, A., & Bossé, Y. (2021) · American Journal of Physiology-Lung Cellular and Molecular Physiology · doi:10.1152/ajplung.00384.2021 · Cited by 22
Self-citationInfection with the SARS-CoV-2 B.1.351 variant is lethal in aged BALB/c mice
Yasui, F., Matsumoto, Y., Yamamoto, N., Sanada, T., Honda, T., Munakata, T., Itoh, Y., & Kohara, M. (2022) · Scientific Reports · doi:10.1038/s41598-022-08104-4 · Cited by 23
Cell and Animal Models for SARS-CoV-2 Research
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“These changes are associated with injury to the parenchyma, collapse of the alveolar space, and decreased gas exchange which overall resemble severe COVID-19 in human patients [12,13].”
BackgroundDuty, J. A., Kraus, T., Zhou, H., Zhang, Y., Shaabani, N., Yildiz, S., Du, N., Singh, A., Miorin, L., Li, D., et al. (2022) · Med · doi:10.1016/j.medj.2022.08.002 · Cited by 21
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“weight loss) but no deaths occur yet [23,24].”
BackgroundMicroglia in antiviral immunity of the brain and spinal cord
O’Brien, C. A., Bennett, F. C., & Bennett, M. L. (2022) · Seminars in Immunology · doi:10.1016/j.smim.2022.101650 · Cited by 26
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A potent and broad neutralization of SARS-CoV-2 variants of concern by DARPins
Chonira, V., Kwon, Y. D., Gorman, J., Case, J. B., Ku, Z., Simeon, R. L., Casner, R. G., Harris, D. R., Olia, A. S., Stephens, T., et al. (2022) · Nature Chemical Biology · doi:10.1038/s41589-022-01193-2 · Cited by 23
Self-citationRole of the microbiota-gut-brain axis in postacute COVID syndrome
Gareau, M. G., & Barrett, K. E. (2023) · American Journal of Physiology-Gastrointestinal and Liver Physiology · doi:10.1152/ajpgi.00293.2022 · Cited by 24
Kim, Y.-S., Park, I. H., Shin, J., Choi, J., Jeon, C., Jeon, S., Shin, J., & Jung, H. (2023) · Advanced Healthcare Materials · doi:10.1002/adhm.202300889 · Cited by 22
van Huizen, M., ter Horst, J. R. B. , Gruyter, H. L. M. D., Geurink, P. P., van Noort, G. J. V. D. H., Knaap, R. C. M., Nelemans, T., Ogando, N. S., Leijs, A. A., Urakova, N., et al. (2024) · PLoS Pathogens · doi:10.1371/journal.ppat.1012100 · Cited by 20
Soni, D. K., Cabrera‐Luque, J., Kar, S., Sen, C., Devaney, J., & Biswas, R. (2020) · bioRxiv (Cold Spring Harbor Laboratory) · doi:10.1101/2020.12.17.423130 · Cited by 22
Horspool, A. M., Ye, C., Wong, T. Y., Russ, B. P., Lee, K. S., Winters, M. T., Bevere, J. R., Kieffer, T. W., Martínez, I., Sourimant, J., et al. (2021) · bioRxiv (Cold Spring Harbor Laboratory) · doi:10.1101/2021.05.05.442784 · Cited by 22
The extracellular matrix in inflammation and cancer
Zhang, W., Xiang, Y., Lu, C., Wang, F., Ren, H., Wu, H., & Yan, M. (2026) · Molecular Biomedicine · doi:10.1186/s43556-026-00415-6 · Cited by 34
Animal models for SARS-Cov2/Covid19 research-A commentary
Jarnagin, K., Alvarez, O., Shresta, S., & Webb, D. R. (2021) · Biochemical Pharmacology · doi:10.1016/j.bcp.2021.114543 · Cited by 22
Gary, E. N., Warner, B. M., Parzych, E. M., Griffin, B. D., Zhu, X., Tailor, N., Tursi, N. J., Chan, M., Purwar, M., Vendramelli, R., et al. (2021) · iScience · doi:10.1016/j.isci.2021.102699 · Cited by 21
Endothelial inflammation and dysfunction in COVID-19
Sbirkov, Y., Dzharov, V., Todorova, K. O., Hayrabedyan, S., & Sarafian, V. S. (2022) · VASA · doi:10.1024/0301-1526/a000991 · Cited by 22
Cao, H., Mai, J., Zhou, Z. P., Li, Z., Duan, R. C., Watt, J., Chen, Z., Bandara, R. A., Li, M., Ahn, S. K., et al. (2021) · Cell & Bioscience · doi:10.1186/s13578-021-00723-0 · Cited by 22
The Impacts of COVID-19 on Musculoskeletal Health
Awosanya, O. D., Dadwal, U. C., Imel, E. A., Yu, Q., & Kacena, M. A. (2022) · Current Osteoporosis Reports · doi:10.1007/s11914-022-00734-x · Cited by 22
Cytokines and Lipid Mediators of Inflammation in Lungs of SARS-CoV-2 Infected Mice
Dubuc, I., Prunier, J., Lacasse, É., Gravel, A., Puhm, F., Allaeys, I., Archambault, A., Gudimard, L., Villano, R., Droit, A., et al. (2022) · Frontiers in Immunology · doi:10.3389/fimmu.2022.893792 · Cited by 19
Considering innate immune responses in SARS-CoV-2 infection and COVID-19
Diamond, M., Lambris, J. D., Ting, J. P. ‐., & Tsang, J. S. (2022) · Nature reviews. Immunology · doi:10.1038/s41577-022-00744-x · Cited by 21
“33,34 ) .”
Self-citationFluorogenic reporter enables identification of compounds that inhibit SARS-CoV-2
Yang, J., Xiao, Y., Lidsky, P. V., Wu, C.-T., Bonser, L. R., Peng, S., Garcia-Knight, M., Tassetto, M., Chung, C.-I., Li, X., et al. (2023) · Nature Microbiology · doi:10.1038/s41564-022-01288-5 · Cited by 23
Nanomaterial-Based Biosensors for SARS-CoV-2 and Future Epidemics
Yari, P., Liang, S. A., Chugh, V. K., Rezaei, B., Mostufa, S., Krishna, V. D., Saha, R., Cheeran, M. C. ‐., Wang, J.-P., Gómez‐Pastora, J., et al. (2023) · Analytical Chemistry · doi:10.1021/acs.analchem.3c01522 · Cited by 21
Sex and age bias viral burden and interferon responses during SARS-CoV-2 infection in ferrets
Francis, M. E., Richardson, B., Goncin, U., McNeil, M., Rioux, M. L., Foley, M. K., Ge, A., Pechous, R. D., Kindrachuk, J., Cameron, C., et al. (2021) · Scientific Reports · doi:10.1038/s41598-021-93855-9 · Cited by 22
Brechbühl, J., Lopes, A. C., Wood, D., Bouteiller, S., de Vallière, A., Verdumo, C., & Broillet, M.-C. (2021) · Communications Biology · doi:10.1038/s42003-021-02410-9 · Cited by 21
Cárdenas, G., Fragoso, G., & Sciutto, E. (2021) · Current Opinion in Pharmacology · doi:10.1016/j.coph.2021.12.008 · Cited by 21
Cui, X., Guo, Y.-H., & Liu, Q. (2022) · Journal of Ethnopharmacology · doi:10.1016/j.jep.2021.114965 · Cited by 21
Clerbaux, L., Mayasich, S. A., Muñoz, A., Soares, H., Petrillo, M., Albertini, M. C., Lanthier, N., Grenga, L., & Amorim, M. J. (2022) · Journal of Clinical Medicine · doi:10.3390/jcm11195691 · Cited by 22
“This is coherent with the fact that hACE2 expression were not observed in the gut of the mice used in that study [37].”
BackgroundInfluentialSnouwaert, J. N., Jania, L. A., Nguyen, T. T. H., Martinez, D. R., Schäfer, A., Catanzaro, N., Gully, K. L., Baric, R. S., Heise, M. T., Ferris, M. T., et al. (2023) · PLoS Pathogens · doi:10.1371/journal.ppat.1011168 · Cited by 22
“Infection of mice carrying the K18-ACE2 transgene with SARS-CoV or SARS-CoV2 results in devastating destruction of the lung parenchyma, loss of lung barrier function, and viremia [72].”
BackgroundAge-dependent acquisition of pathogenicity by SARS-CoV-2 Omicron BA.5
Imbiakha, B., Ezzatpour, S., Buchholz, D. W., Sahler, J., Ye, C., Olarte‐Castillo, X. A., Zou, A., Kwas, C. T., O’Hare, K., Choi, A., et al. (2023) · Science Advances · doi:10.1126/sciadv.adj1736 · Cited by 21
Zhang, Z., Zhou, L., Liu, Q., Zheng, Y., Tan, X., Huang, Z., Guo, M. S., Wang, X., Chen, X., Liang, S., et al. (2024) · Emerging Microbes & Infections · doi:10.1080/22221751.2024.2353302 · Cited by 20
Rodríguez-Hernández, M. Á., Baena-Bustos, M., Carneros, D., Zurita-Palomo, C., Muñoz-Pinillos, P., Millán, J., Padillo, F. J., Smerdou, C., von Kobbe, C., Rose‐John, S., et al. (2024) · EBioMedicine · doi:10.1016/j.ebiom.2024.105132 · Cited by 19
Innate immune memory: The evolving role of macrophages in therapy
Damani‐Yokota, P., & Khanna, K. M. (2025) · eLife · doi:10.7554/elife.108276 · Cited by 22
“In K18-hACE2 mice, infection with the WA01 strain induces trained immunity in lung macrophages through type I and II interferon signaling ( Winkler et al., 2020 ).”
A mouse model of lethal respiratory dysfunction for SARS-CoV-2 infection
Gan, E. S., Syenina, A., Linster, M., Ng, B., Zhang, S. L.-X., Watanabe, S., Rajarethinam, R., Tan, H. C., Smith, G. J. D., & Ooi, E. E. (2021) · Antiviral Research · doi:10.1016/j.antiviral.2021.105138 · Cited by 19
Coria, L. M., Saposnik, L. M., Castro, C. P., Castro, E. F., Bruno, L. A., Stone, W. B., Pérez, P. S., Darriba, M. L., Chemes, L. B., Alcaín, J., et al. (2022) · Frontiers in Immunology · doi:10.3389/fimmu.2022.844837 · Cited by 20
“Infection of transgenic mice with SARS-CoV-2 results in lung disease with signs of diffuse alveolar damage and variable spread to the central nervous system (30).”
BackgroundSARS-CoV-2 receptor binding domain fusion protein efficiently neutralizes virus infection
Chaouat, A. E., Achdout, H., Kol, I., Berhani, O., Roi, G., Vitner, E. B., Melamed, S., Politi, B., Zahavy, E., Brizić, I., et al. (2021) · PLoS Pathogens · doi:10.1371/journal.ppat.1010175 · Cited by 20
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Mouse models of lung-specific SARS-CoV-2 infection with moderate pathological traits
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“The virus is detected at higher levels in the lungs of K18-hACE2 mice than in other organs, such as the spleen, small intestine, and brain (13, 14, 17), which is likely attributed to K18 promoter expression in the epithelial tissue.”
BackgroundMethodResultAnimal models for COVID-19 and tuberculosis
Corleis, B., Bastian, M., Hoffmann, D., Beer, M., & Dorhoi, A. (2023) · Frontiers in Immunology · doi:10.3389/fimmu.2023.1223260 · Cited by 21
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Self-citationLi, Y., Tan, X., Deng, J., Liu, X., Liu, Q., Zhang, Z., Huang, X., Shen, C., Xu, K., Zhou, L., et al. (2024) · Virologica Sinica · doi:10.1016/j.virs.2024.03.009 · Cited by 19
“Several transgenic mice expressing human angiotensin converting enzyme 2 (hACE2) have been developed for this purpose (Bao et al., 2020; Jiang et al., 2020; Winkler et al., 2020; Zheng et al., 2021).”
BackgroundCase, J. B., Sanapala, S., Dillen, C. A., Rhodes, V., Zmasek, C. M., Chicz, T. M., Switzer, C., Scheaffer, S. M., Georgiev, G. P., Jacob-Dolan, C., et al. (2024) · Cell Host & Microbe · doi:10.1016/j.chom.2024.10.016 · Cited by 18
Self-citationYang, S.-J., Wei, T.-C., Hsu, C.-H., Ho, S.-N., Lai, C.-Y., Huang, S., Chen, Y.-Y., Liu, S., Yu, G., & Dou, H.-Y. (2021) · Journal of Inflammation Research · doi:10.2147/jir.s323026 · Cited by 19
The Role of Innate Immunity and Bioactive Lipid Mediators in COVID-19 and Influenza
Sahanic, S., Löffler‐Ragg, J., Tymoszuk, P., Hilbe, R., Demetz, E., Masanetz, R. K., Theurl, M., Holfeld, J., Gollmann‐Tepeköylü, C., Tzankov, A., et al. (2021) · Frontiers in Physiology · doi:10.3389/fphys.2021.688946 · Cited by 18
Wong, T. Y., Horspool, A. M., Russ, B. P., Ye, C., Lee, K. S., Winters, M. T., Bevere, J. R., Miller, O. A., Rader, N. A., Cooper, M., et al. (2022) · Journal of Virology · doi:10.1128/jvi.02184-21 · Cited by 17
“To inactivate virus from tissue samples, 1% vol/vol Triton X-100 (Sigma-Aldrich T8787) (27) was added to each sample and incubated for 1 h at room temperature.”
BackgroundMethodInfluentialCardiovascular Tropism and Sequelae of SARS-CoV-2 Infection
Dmytrenko, O., & Lavine, K. J. (2022) · Viruses · doi:10.3390/v14061137 · Cited by 21
Carbohydrates Metabolic Signatures in Immune Cells: Response to Infection
Awad, K., Maghraby, A. S., Abd‐Elshafy, D. N., & Bahgat, M. M. (2022) · Frontiers in Immunology · doi:10.3389/fimmu.2022.912899 · Cited by 19
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Metadata
- Authors
- Winkler, E. S., Bailey, A. L., Kafai, N. M., Nair, S., McCune, B. T., Yu, J., Fox, J. M., Chen, R. E., Earnest, J. T., Keeler, S. P., Ritter, J. H., Kang, L.-I., Dort, S., Robichaud, A., Head, R., Holtzman, M. J., & Diamond, M. S.
- Affiliations
- Washington University in St. Louis (US)
- Corresponding author
- Diamond, Michael S.
- ORCID
- Venue
- Nature Immunology
- Published
- 2020-08-24
- Volume
- 21
- Issue
- 11
- Pages
- 1327-1335
- ISSN
- 1529-2908 (ISSN-L)
- 1529-2916
- PMC
- PMC7578095
- OpenAlex
- W3080378920
- Cited by
- 901
- References
- 56
- Citations by year
- 2026: 55 · 2025: 72 · 2024: 124 · 2023: 131 · 2022: 234 · 2021: 252 · 2020: 32
- FWCI
- 21.20
- Type
- journal article
- Language
- en
- Update notices
- correction (2020-09-02)
- Open access
- bronze
- doi.org
- Locations
- Nature Immunology (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- Funders
- U.S. Department of Health & Human Services | NIH | National Institute of Allergy and Infectious Diseases (75N93019C00062, R01 AI127828, R01 AI130591, R35 HL145242, F32 AI138392)
- United States Department of Defense | Defense Advanced Research Projects Agency (HR001117S0019)
- Topics
- Health Sciences › Medicine › Infectious Diseases › SARS-CoV-2 and COVID-19 Research
- Health Sciences › Medicine › Infectious Diseases › COVID-19 Clinical Research Studies
- Life Sciences › Immunology and Microbiology › Immunology › interferon and immune responses
- Keywords
- SARS-CoV-2, COVID-19 pandemic, K18-hACE2 mice, animal model of COVID-19, lung inflammation, lung function decline, monocytes, neutrophils, T cell activation, innate immune response, interferon signaling, NF-κB signaling
- MeSH terms
- Betacoronavirus, Angiotensin-Converting Enzyme 2, COVID-19, SARS-CoV-2, Animals, Chlorocebus aethiops, Disease Models, Animal, Female, Humans, Immunity, Innate, Interferon Type I, Interferon-gamma, Peptidyl-Dipeptidase A, Leukocytes, Lymphocyte Activation, Male, Mice, Transgenic, Monocytes, Neutrophils, Pneumonia, Pneumonia, Viral, Promoter Regions, Genetic, T-Lymphocytes, Vero Cells, Virus Replication, NF-kappa B, Coronavirus Infections, Neutrophil Infiltration, Mice, Keratin-18, Pandemics
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