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Lee IJ, Sun CP, Wu PY, Lan YH, Wang IH, Liu WC, Yuan JPY, Chang YW, Tseng SC, Tsung SI, Chou YC, Kumari M, Lin YS, Chen HF, Chen TY, Lin CC, Chiu CW, Hsieh CH, Chuang CY, Cheng CM, Lin HT, Chen WY, Hsu FF, Hong MH, Liao CC, Chang CS, Liang JJ, Ma HH, Chiang MT, Liao HN, Ko HY, Chen LY, Ko YA, Yu PY, Yang TJ, Chiang PC, Hsu ST, Lin YL, Lee CC, Wu HC, Tao MH. A booster dose of Delta × Omicron hybrid mRNA vaccine produced broadly neutralizing antibody against Omicron and other SARS-CoV-2 variants. J Biomed Sci 2022; 29:49. [PMID: 35799178 PMCID: PMC9261010 DOI: 10.1186/s12929-022-00830-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 06/24/2022] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND With the continuous emergence of new SARS-CoV-2 variants that feature increased transmission and immune escape, there is an urgent demand for a better vaccine design that will provide broader neutralizing efficacy. METHODS We report an mRNA-based vaccine using an engineered "hybrid" receptor binding domain (RBD) that contains all 16 point-mutations shown in the currently prevailing Omicron and Delta variants. RESULTS A booster dose of hybrid vaccine in mice previously immunized with wild-type RBD vaccine induced high titers of broadly neutralizing antibodies against all tested SARS-CoV-2 variants of concern (VOCs). In naïve mice, hybrid vaccine generated strong Omicron-specific neutralizing antibodies as well as low but significant titers against other VOCs. Hybrid vaccine also elicited CD8+/IFN-γ+ T cell responses against a conserved T cell epitope present in wild type and all VOCs. CONCLUSIONS These results demonstrate that inclusion of different antigenic mutations from various SARS-CoV-2 variants is a feasible approach to develop cross-protective vaccines.
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Affiliation(s)
- I-Jung Lee
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
- Graduate Institute of Microbiology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Cheng-Pu Sun
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Ping-Yi Wu
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Yu-Hua Lan
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - I-Hsuan Wang
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Wen-Chun Liu
- Biomedical Translation Research Center, Academia Sinica, Taipei, Taiwan
| | - Joyce Pei-Yi Yuan
- Biomedical Translation Research Center, Academia Sinica, Taipei, Taiwan
| | - Yu-Wei Chang
- Biomedical Translation Research Center, Academia Sinica, Taipei, Taiwan
| | - Sheng-Che Tseng
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Szu-I Tsung
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
- Graduate Institute of Microbiology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Yu-Chi Chou
- Biomedical Translation Research Center, Academia Sinica, Taipei, Taiwan
| | - Monika Kumari
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan
| | - Yin-Shiou Lin
- Biomedical Translation Research Center, Academia Sinica, Taipei, Taiwan
| | - Hui-Feng Chen
- Biomedical Translation Research Center, Academia Sinica, Taipei, Taiwan
| | - Tsung-Yen Chen
- Biomedical Translation Research Center, Academia Sinica, Taipei, Taiwan
| | - Chih-Chao Lin
- Biomedical Translation Research Center, Academia Sinica, Taipei, Taiwan
| | - Chi-Wen Chiu
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
- Department of Clinical Laboratory Science and Medical Biotechnology, National Taiwan University, Taipei, Taiwan
| | - Chung-Hsuan Hsieh
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
- Department of Clinical Laboratory Science and Medical Biotechnology, National Taiwan University, Taipei, Taiwan
| | | | - Chao-Min Cheng
- Biomedical Translation Research Center, Academia Sinica, Taipei, Taiwan
| | - Hsiu-Ting Lin
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan
| | - Wan-Yu Chen
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan
| | - Fu-Fei Hsu
- Biomedical Translation Research Center, Academia Sinica, Taipei, Taiwan
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan
| | - Ming-Hsiang Hong
- Biomedical Translation Research Center, Academia Sinica, Taipei, Taiwan
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan
| | - Chun-Che Liao
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Chih-Shin Chang
- Biomedical Translation Research Center, Academia Sinica, Taipei, Taiwan
| | - Jian-Jong Liang
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Hsiu-Hua Ma
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Ming-Tsai Chiang
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Hsin-Ni Liao
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Hui-Ying Ko
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Liang-Yu Chen
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Yi-An Ko
- Biomedical Translation Research Center, Academia Sinica, Taipei, Taiwan
| | - Pei-Yu Yu
- Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan
| | - Tzu-Jing Yang
- Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan
| | - Po-Cheng Chiang
- Biomedical Translation Research Center, Academia Sinica, Taipei, Taiwan
| | - Shang-Te Hsu
- Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan
| | - Yi-Ling Lin
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
- Biomedical Translation Research Center, Academia Sinica, Taipei, Taiwan
| | - Chong-Chou Lee
- Biomedical Translation Research Center, Academia Sinica, Taipei, Taiwan
| | - Han-Chung Wu
- Biomedical Translation Research Center, Academia Sinica, Taipei, Taiwan
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan
| | - Mi-Hua Tao
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan.
- Graduate Institute of Microbiology, College of Medicine, National Taiwan University, Taipei, Taiwan.
- Biomedical Translation Research Center, Academia Sinica, Taipei, Taiwan.
- Department of Clinical Laboratory Science and Medical Biotechnology, National Taiwan University, Taipei, Taiwan.
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