Impaired inflammatory resolution with severe SARS-CoV-2 infection in leptin knock out obese hamster

Summary: Comorbidities, such as obesity, increase the risk of severe COVID-19. However, the mechanisms underlying severe illnesses in individuals with obesity are poorly understood. Here, we used gene-edited leptin knock out (Leptin−/−) obese hamsters to establish a severe infection model. This mode...

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Main Authors: Ren-Di Jiang, Yun-Zhe Luo, Hao-Feng Lin, Xiao-Shuang Zheng, Wen-Tao Zeng, Mei-Qin Liu, Hao-Hao Deng, Qi Wang, Ya-Na Lai, Ying Chen, Zi-Shuo Guo, Ya Zeng, Qian-Chun Gong, Chen Qiu, Mei Dong, Xi Wang, Zi-Yi Wang, Li-Na Ji, Pan-Pan Hou, Qian Li, Xu-Rui Shen, Bei Li, Yun Gao, Ai-Hua Zhang, Ting-Ting Jiang, Ai-Min Shi, Peng Zhou, Xin-Hua Lin, Zi-Qing Deng, Jian-Min Li, Zheng-Li Shi
Format: Article
Language:English
Published: Elsevier 2025-02-01
Series:iScience
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Online Access:http://www.sciencedirect.com/science/article/pii/S2589004225000975
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author Ren-Di Jiang
Yun-Zhe Luo
Hao-Feng Lin
Xiao-Shuang Zheng
Wen-Tao Zeng
Mei-Qin Liu
Hao-Hao Deng
Qi Wang
Ya-Na Lai
Ying Chen
Zi-Shuo Guo
Ya Zeng
Qian-Chun Gong
Chen Qiu
Mei Dong
Xi Wang
Zi-Yi Wang
Li-Na Ji
Pan-Pan Hou
Qian Li
Xu-Rui Shen
Bei Li
Yun Gao
Ai-Hua Zhang
Ting-Ting Jiang
Ai-Min Shi
Peng Zhou
Xin-Hua Lin
Zi-Qing Deng
Jian-Min Li
Zheng-Li Shi
author_facet Ren-Di Jiang
Yun-Zhe Luo
Hao-Feng Lin
Xiao-Shuang Zheng
Wen-Tao Zeng
Mei-Qin Liu
Hao-Hao Deng
Qi Wang
Ya-Na Lai
Ying Chen
Zi-Shuo Guo
Ya Zeng
Qian-Chun Gong
Chen Qiu
Mei Dong
Xi Wang
Zi-Yi Wang
Li-Na Ji
Pan-Pan Hou
Qian Li
Xu-Rui Shen
Bei Li
Yun Gao
Ai-Hua Zhang
Ting-Ting Jiang
Ai-Min Shi
Peng Zhou
Xin-Hua Lin
Zi-Qing Deng
Jian-Min Li
Zheng-Li Shi
author_sort Ren-Di Jiang
collection DOAJ
description Summary: Comorbidities, such as obesity, increase the risk of severe COVID-19. However, the mechanisms underlying severe illnesses in individuals with obesity are poorly understood. Here, we used gene-edited leptin knock out (Leptin−/−) obese hamsters to establish a severe infection model. This model exhibits robust viral replication, severe lung lesions, pronounced clinical symptoms, and fatal infection, mirroring severe COVID-19 in patients with obesity. Using single-cell transcriptomics on lung tissues pre- and post-infection, we found that monocyte-derived alveolar macrophages (MD-AM) play a key role in lung hyper-inflammation, including two unique MD-AM cell fate branches specific to Leptin−/− hamsters. Notably, reduced Trem2-dependent efferocytosis pathways in Leptin−/− hamsters indicated weakened inflammation resolution, consistent with the scRNA-seq data from patients with obesity. In summary, our study highlights the obesity-associated mechanisms underlying severe SARS-CoV-2 infections and establishes a reliable preclinical animal model for developing obesity-specific therapeutics for critical COVID-19.
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spelling doaj-art-725794ed195d4bec9af8d38e5d741bc42025-02-02T05:29:09ZengElsevieriScience2589-00422025-02-01282111837Impaired inflammatory resolution with severe SARS-CoV-2 infection in leptin knock out obese hamsterRen-Di Jiang0Yun-Zhe Luo1Hao-Feng Lin2Xiao-Shuang Zheng3Wen-Tao Zeng4Mei-Qin Liu5Hao-Hao Deng6Qi Wang7Ya-Na Lai8Ying Chen9Zi-Shuo Guo10Ya Zeng11Qian-Chun Gong12Chen Qiu13Mei Dong14Xi Wang15Zi-Yi Wang16Li-Na Ji17Pan-Pan Hou18Qian Li19Xu-Rui Shen20Bei Li21Yun Gao22Ai-Hua Zhang23Ting-Ting Jiang24Ai-Min Shi25Peng Zhou26Xin-Hua Lin27Zi-Qing Deng28Jian-Min Li29Zheng-Li Shi30State Key Laboratory of Genetic Engineering, Greater Bay Area Institute of Precision Medicine (Guangzhou), School of Life Sciences, Zhongshan Hospital, Fudan University, Shanghai, China; Corresponding authorBGI Research, Beijing, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing, ChinaWuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China; The First Affiliated Hospital of Guangzhou Medical University, State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, ChinaThe First Affiliated Hospital of Guangzhou Medical University, State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, ChinaState Key Laboratory of Reproductive Medicine and Offspring Health, Jiangsu Animal Experimental Center of Medicine and Pharmacy, Animal Core facility, Key Laboratory of Model Animal, Department of Cell Biology, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, ChinaThe First Affiliated Hospital of Guangzhou Medical University, State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, ChinaBGI Research, Beijing, China; Shenzhen Key Laboratory of Unknown Pathogen Identification, BGI-Shenzhen, Shenzhen, ChinaWuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing, ChinaState Key Laboratory of Reproductive Medicine and Offspring Health, Jiangsu Animal Experimental Center of Medicine and Pharmacy, Animal Core facility, Key Laboratory of Model Animal, Department of Cell Biology, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, ChinaWuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, ChinaWuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing, ChinaBGI Research, Beijing, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing, ChinaState Key Laboratory of Genetic Engineering, Greater Bay Area Institute of Precision Medicine (Guangzhou), School of Life Sciences, Zhongshan Hospital, Fudan University, Shanghai, ChinaState Key Laboratory of Reproductive Medicine and Offspring Health, Jiangsu Animal Experimental Center of Medicine and Pharmacy, Animal Core facility, Key Laboratory of Model Animal, Department of Cell Biology, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, ChinaState Key Laboratory of Reproductive Medicine and Offspring Health, Jiangsu Animal Experimental Center of Medicine and Pharmacy, Animal Core facility, Key Laboratory of Model Animal, Department of Cell Biology, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, ChinaWuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing, ChinaNational Engineering Research Center of Neuromodulation, School of Aerospace Engineering, Tsinghua University, Beijing, ChinaSchool of Life Sciences, Inner Mongolia University, Hohhot, China; Joint Laboratory for Lung Development and Related Diseases of West China Second University Hospital, Sichuan University and School of Life Sciences of Fudan University, Chengdu, ChinaGuangzhou National Laboratory, Guangzhou, ChinaThe First Affiliated Hospital of Guangzhou Medical University, State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, ChinaGuangzhou National Laboratory, Guangzhou, ChinaWuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, ChinaState Key Laboratory of Reproductive Medicine and Offspring Health, Jiangsu Animal Experimental Center of Medicine and Pharmacy, Animal Core facility, Key Laboratory of Model Animal, Department of Cell Biology, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, ChinaState Key Laboratory of Reproductive Medicine and Offspring Health, Jiangsu Animal Experimental Center of Medicine and Pharmacy, Animal Core facility, Key Laboratory of Model Animal, Department of Cell Biology, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, ChinaWuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, ChinaState Key Laboratory of Reproductive Medicine and Offspring Health, Jiangsu Animal Experimental Center of Medicine and Pharmacy, Animal Core facility, Key Laboratory of Model Animal, Department of Cell Biology, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, ChinaThe First Affiliated Hospital of Guangzhou Medical University, State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, China; Guangzhou National Laboratory, Guangzhou, China; Corresponding authorState Key Laboratory of Genetic Engineering, Greater Bay Area Institute of Precision Medicine (Guangzhou), School of Life Sciences, Zhongshan Hospital, Fudan University, Shanghai, China; School of Life Sciences, Inner Mongolia University, Hohhot, China; Shanghai Key Laboratory of Lung Inflammation and Injury, Shanghai, China; Joint Laboratory for Lung Development and Related Diseases of West China Second University Hospital, Sichuan University and School of Life Sciences of Fudan University, Chengdu, China; Corresponding authorBGI Research, Beijing, China; Shenzhen Key Laboratory of Unknown Pathogen Identification, BGI-Shenzhen, Shenzhen, China; Corresponding authorState Key Laboratory of Reproductive Medicine and Offspring Health, Jiangsu Animal Experimental Center of Medicine and Pharmacy, Animal Core facility, Key Laboratory of Model Animal, Department of Cell Biology, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, China; Corresponding authorWuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China; Guangzhou National Laboratory, Guangzhou, China; Corresponding authorSummary: Comorbidities, such as obesity, increase the risk of severe COVID-19. However, the mechanisms underlying severe illnesses in individuals with obesity are poorly understood. Here, we used gene-edited leptin knock out (Leptin−/−) obese hamsters to establish a severe infection model. This model exhibits robust viral replication, severe lung lesions, pronounced clinical symptoms, and fatal infection, mirroring severe COVID-19 in patients with obesity. Using single-cell transcriptomics on lung tissues pre- and post-infection, we found that monocyte-derived alveolar macrophages (MD-AM) play a key role in lung hyper-inflammation, including two unique MD-AM cell fate branches specific to Leptin−/− hamsters. Notably, reduced Trem2-dependent efferocytosis pathways in Leptin−/− hamsters indicated weakened inflammation resolution, consistent with the scRNA-seq data from patients with obesity. In summary, our study highlights the obesity-associated mechanisms underlying severe SARS-CoV-2 infections and establishes a reliable preclinical animal model for developing obesity-specific therapeutics for critical COVID-19.http://www.sciencedirect.com/science/article/pii/S2589004225000975Immune responseVirologyOmics
spellingShingle Ren-Di Jiang
Yun-Zhe Luo
Hao-Feng Lin
Xiao-Shuang Zheng
Wen-Tao Zeng
Mei-Qin Liu
Hao-Hao Deng
Qi Wang
Ya-Na Lai
Ying Chen
Zi-Shuo Guo
Ya Zeng
Qian-Chun Gong
Chen Qiu
Mei Dong
Xi Wang
Zi-Yi Wang
Li-Na Ji
Pan-Pan Hou
Qian Li
Xu-Rui Shen
Bei Li
Yun Gao
Ai-Hua Zhang
Ting-Ting Jiang
Ai-Min Shi
Peng Zhou
Xin-Hua Lin
Zi-Qing Deng
Jian-Min Li
Zheng-Li Shi
Impaired inflammatory resolution with severe SARS-CoV-2 infection in leptin knock out obese hamster
iScience
Immune response
Virology
Omics
title Impaired inflammatory resolution with severe SARS-CoV-2 infection in leptin knock out obese hamster
title_full Impaired inflammatory resolution with severe SARS-CoV-2 infection in leptin knock out obese hamster
title_fullStr Impaired inflammatory resolution with severe SARS-CoV-2 infection in leptin knock out obese hamster
title_full_unstemmed Impaired inflammatory resolution with severe SARS-CoV-2 infection in leptin knock out obese hamster
title_short Impaired inflammatory resolution with severe SARS-CoV-2 infection in leptin knock out obese hamster
title_sort impaired inflammatory resolution with severe sars cov 2 infection in leptin knock out obese hamster
topic Immune response
Virology
Omics
url http://www.sciencedirect.com/science/article/pii/S2589004225000975
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