小柯机器人

四川大学Xiawei Wei等研究人员合作研发出可诱导保护性免疫的SARS-CoV-2 S蛋白RBD靶向疫苗。这一研究成果于2020年7月29日在线发表在《自然》上。

Title: A vaccine targeting the RBD of the S protein of SARS-CoV-2 induces protective immunity

Author: Jingyun Yang, Wei Wang, Zimin Chen, Shuaiyao Lu, Fanli Yang, Zhenfei Bi, Linlin Bao, Fei Mo, Xue Li, Yong Huang, Weiqi Hong, Yun Yang, Yuan Zhao, Fei Ye, Sheng Lin, Wei Deng, Hua Chen, Hong Lei, Ziqi Zhang, Min Luo, Hong Gao, Yue Zheng, Yanqiu Gong, Xiaohua Jiang, Yanfeng Xu, Qi Lv, Dan Li, Manni Wang, Fengdi Li, Shunyi Wang, Guanpeng Wang, Pin Yu, Yajin Qu, Li Yang, Hongxin Deng, Aiping Tong, Jiong Li, Zhenling Wang, Jinliang Yang, Guobo Shen, Zhiwei Zhao, Yuhua Li, Jingwen Luo, Hongqi Liu, Wenhai Yu, Mengli Yang, Jingwen Xu, Junbin Wang, Haiyan Li, Haixuan Wang, Dexuan Kuang, Panpan Lin, Zhengtao Hu, Wei Guo, Wei Cheng, Yanlin He, Xiangrong Song, Chong Chen, Zhihong Xue, Shaohua Yao, Lu Chen, Xuelei Ma, Siyuan Chen, Maling Gou, Weijin Huang, Youchun Wang, Changfa Fan, Zhixin Tian, Ming Shi, Fu-Sheng Wang, Lunzhi Dai, Min Wu, Gen Li, Guangyu Wang, Yong Peng

Issue&Volume: 2020-07-29

Abstract: The novel Coronavirus SARS-CoV-2 causes a respiratory illness called COVID-19 leading to a pandemic. An effective preventive vaccine against this virus is urgently needed. As the most critical step during infection, SARS-CoV-2 uses its Spike protein receptor-binding domain (S-RBD) to engage with the host cell receptor angiotensin-converting enzyme 2 (ACE2)1,2. Here we showed that a recombinant vaccine comprising residues 319-545 of the S-RBD could induce a potent functional antibody response in the immunized mice, rabbits and non-human primates (Macaca mulatta) as early as 7 or 14 days after a single dose injection. The sera from the immunized animals blocked RBD binding to ACE2 expressed on the cell surface and neutralized the infection by SARS-CoV-2 pseudovirus and live SARS-CoV-2 in vitro. Importantly, the vaccination also provided protection in non-human primates from SARS-CoV-2 challenge in vivo. The elevated RBD-specific antibodies were also found in the sera from patients with COVID-19. Several immune pathways and CD4 T lymphocytes were implicated in the induction of the vaccine antibody response. Our finding highlights the importance of the RBD domain in the SARS-CoV-2 vaccine design and provides the rationale for the development of a protective vaccine through the induction of antibody against the RBD domain.

DOI: 10.1038/s41586-020-2599-8

Source: https://www.nature.com/articles/s41586-020-2599-8

Nature：《自然》，创刊于1869年。隶属于施普林格·自然出版集团，最新IF：69.504
官方网址：http://www.nature.com/
投稿链接：http://www.nature.com/authors/submit_manuscript.html