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Coronavac inactivated vaccine triggers durable, cross-reactive Fc-mediated phagocytosis activities

Dataset

  • Lili Wang (Creator)
  • Chuang Li (Creator)
  • Wanting Li (Creator)
  • Liwei Zhao (Creator)
  • Tiantian Zhao (Creator)
  • Lin ChenChinese Academy of Agricultural Sciences, Department of Pathology, Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China;, Shenzhen Center for Disease Control and Prevention, First Hospital of Lanzhou University, Qinghai University, First Affiliated Hospital of GuangXi Medical University, Arthritis Research Canada Vancouver British Columbia Canada; Department of Rehabilitation Medicine, West China Hospital Sichuan University Chengdu Sichuan China; Rehabilitation Medicine Key Laboratory of Sichuan Province, West China Hospital Sichuan University Chengdu Sichuan China, Zhejiang Univ, Zhejiang University, Inst Informat & Commun Engn, College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, Jiangsu, People's Republic of China., School of Nursing, Fujian Medical University, Fujian, China., Affiliated Hospital of North Sichuan Medical College, Hubei Provincial Women and Children's Hospital, First Affiliated Hospital of Sun Yat-sen University, Nanjing Forestry University, China Academy of Chinese Medical Sciences, Zhejiang Chinese Medical University, Affiliated Hospital of Southwest Medical University, Yunnan Univ, Yunnan University, Acad Engn & Technol, Inst Optoelect Informat Mat, Chengdu University of Traditional Chinese Medicine, Jilin Agricultural University, Zhejiang Provincial Center for Disease Control and Prevention, Yokohama City University, Chinese PLA General Hospital, Hainan Medical University, Department of Pathology, Zhejiang Cancer Hospital, Hangzhou, Zhejiang, China;, Univ Chicago, University of Chicago, Dept Phys, Northern Jiangsu People's Hospital, University of Electronic Science and Technology of China, Chengdu, China, Yan'an Hospital Affiliated To Kunming Medical University, Southwest Medical University, Nantong University, Nanjing Medical University, Beijing Normal Univ, Beijing Normal University, Coll Water Sci (Creator)
  • Ming Li (Creator)
  • Jing Fan (Creator)
  • Jiayan Li (Creator)
  • Chao Wu (Creator)
  • Yuxin Chen (Creator)

Description

Although humoral responses elicited by infection or vaccine lost the ability to prevent transmission against Omicron, vaccine-induced antibodies may still contribute to disease attenuation through Fc-mediated effector functions. However, Fc effector function elicited by CoronaVac, as the most widely supplied inactivated vaccine globally, has not been characterized. For the first time, our study depicted Fc-mediated phagocytosis activity induced by CoronaVac, including antibody-dependent cellular phagocytosis (ADCP) and antibody-dependent neutrophil phagocytosis (ADNP) activities, and further compared with that from convalescent individuals and CoronaVac recipients with subsequent breakthrough infections. We showed that 2-dose of CoronaVac effectively induced both ADCP and ADNP, but was substantially lower compared to infection, whereas the booster dose further augmented ADCP and ADNP responses, and remained detectable for 52 weeks. Among CoronaVac recipients, ADCP and ADNP responses also demonstrated cross-reactivity against Omicron subvariants, and breakthrough infection could enhance the phagocytic response. Meanwhile, serum samples from vaccinees, convalescent individuals with wildtype infection, BA.2 and BA.5 breakthrough infection demonstrated differential cross-reactive ADCP and ADNP responses against Omicron subvariants, suggesting the different subvariants of spike antigen exposure might alter the cross-reactivity of Fc effector function. Further, ADCP and ADNP responses were strongly correlated with Spike-specific IgG responses and neutralizing activities, indicating coordinated neutralization activity, ADCP and ADNP responses triggered by CoronaVac. Of note, the ADCP and ADNP responses were more durable and cross-reactive than corresponding Spike-specific IgG titers and neutralizing activities. Our study has important implications for optimal boosting vaccine strategies that may induce potent and broad Fc-mediated phagocytic activities.
Date made available2023
PublisherTaylor & Francis

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