TY - JOUR KW - Respiratory Tract Diseases KW - Viral pathogenesis KW - Virus–host interactions AU - Cun Li AU - Yifei Yu AU - Zhixin Wan AU - Man Chun Chiu AU - Jingjing Huang AU - Shuxin Zhang AU - Xiaoxin Zhu AU - Qiaoshuai Lan AU - Yanlin Deng AU - Ying Zhou AU - Wei Xue AU - Ming Yue AU - Jian-Piao Cai AU - Cyril Chik-Yan Yip AU - Kenneth Kak-Yuen Wong AU - Xiaojuan Liu AU - Yang Yu AU - Lin Huang AU - Hin Chu AU - Jasper Fuk-Woo Chan AU - Hans Clevers AU - Kwok Yung Yuen AU - Jie Zhou AB - The lack of a robust system to reproducibly propagate HRV-C, a family of viruses refractory to cultivation in standard cell lines, has substantially hindered our understanding of this common respiratory pathogen. We sought to develop an organoid-based system to reproducibly propagate HRV-C, and characterize virus-host interaction using respiratory organoids. We demonstrate that airway organoids sustain serial virus passage with the aid of CYT387-mediated immunosuppression, whereas nasal organoids that more closely simulate the upper airway achieve this without any intervention. Nasal organoids are more susceptible to HRV-C than airway organoids. Intriguingly, upon HRV-C infection, we observe an innate immune response that is stronger in airway organoids than in nasal organoids, which is reproduced in a Poly(I:C) stimulation assay. Treatment with α-CDHR3 and antivirals significantly reduces HRV-C viral growth in airway and nasal organoids. Additionally, an organoid-based immunofluorescence assay is established to titrate HRV-C infectious particles. Collectively, we develop an organoid-based system to reproducibly propagate the poorly cultivable HRV-C, followed by a comprehensive characterization of HRV-C infection and innate immunity in physiologically active respiratory organoids. The organoid-based HRV-C infection model can be extended for developing antiviral strategies. More importantly, our study has opened an avenue for propagating and studying other uncultivable human and animal viruses. BT - Nature Communications DA - 2024-12-30 DO - 10.1038/s41467-024-55076-2 IS - 1 LA - en N2 - The lack of a robust system to reproducibly propagate HRV-C, a family of viruses refractory to cultivation in standard cell lines, has substantially hindered our understanding of this common respiratory pathogen. We sought to develop an organoid-based system to reproducibly propagate HRV-C, and characterize virus-host interaction using respiratory organoids. We demonstrate that airway organoids sustain serial virus passage with the aid of CYT387-mediated immunosuppression, whereas nasal organoids that more closely simulate the upper airway achieve this without any intervention. Nasal organoids are more susceptible to HRV-C than airway organoids. Intriguingly, upon HRV-C infection, we observe an innate immune response that is stronger in airway organoids than in nasal organoids, which is reproduced in a Poly(I:C) stimulation assay. Treatment with α-CDHR3 and antivirals significantly reduces HRV-C viral growth in airway and nasal organoids. Additionally, an organoid-based immunofluorescence assay is established to titrate HRV-C infectious particles. Collectively, we develop an organoid-based system to reproducibly propagate the poorly cultivable HRV-C, followed by a comprehensive characterization of HRV-C infection and innate immunity in physiologically active respiratory organoids. The organoid-based HRV-C infection model can be extended for developing antiviral strategies. More importantly, our study has opened an avenue for propagating and studying other uncultivable human and animal viruses. PY - 2024 EP - 10772 T2 - Nature Communications TI - Human respiratory organoids sustained reproducible propagation of human rhinovirus C and elucidation of virus-host interaction UR - https://www.nature.com/articles/s41467-024-55076-2 VL - 15 Y2 - 2025-01-15 SN - 2041-1723 ER -