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He Y, Cheng C, Liu Y, Chen FM, Chen Y, Yang C, Zhao Z, Dawulieti J, Shen Z, Zhang Y, Du JZ, Guan S, Shao D. Intravenous Senescent Erythrocyte Vaccination Modulates Adaptive Immunity and Splenic Complement Production. ACS Nano 2024; 18:470-482. [PMID: 38146673 DOI: 10.1021/acsnano.3c07943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2023]
Abstract
Targeted delivery of vaccines to the spleen remains a challenge. Inspired by the erythrophagocytotic process in the spleen, we herein report that intravenous administration of senescent erythrocyte-based vaccines profoundly alters their tropism toward splenic antigen-presenting cells (APCs) for imprinting adaptive immune responses. Compared with subcutaneous inoculation, intravenous vaccination significantly upregulated splenic complement expression in vivo and demonstrated synergistic antibody killing in vitro. Consequently, intravenous senescent erythrocyte vaccination produces potent SARS-CoV-2 antibody-neutralizing effects, with potential protective immune responses. Moreover, the proposed senescent erythrocyte can deliver antigens from resected tumors and adjuvants to splenic APCs, thereby inducing a personalized immune reaction against tumor recurrence after surgery. Hence, our findings suggest that senescent erythrocyte-based vaccines can specifically target splenic APCs and evoke adaptive immunity and complement production, broadening the tools for modulating immunity, helping to understand adaptive response mechanisms to senescent erythrocytes better, and developing improved vaccines against cancer and infectious diseases.
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Affiliation(s)
- Yan He
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou, Guangdong 511442, China
| | - Chuanxu Cheng
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou, Guangdong 511442, China
| | - Yuheng Liu
- National Engineering Research Center of Immunological Products, Third Military Medical University, Chongqing 400038, China
- Department of Pharmacology, College of Pharmacy, Chongqing Medical University, Chongqing, 400016, China
| | - Fang-Man Chen
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou, Guangdong 511442, China
| | - Yinglu Chen
- School of Medicine, South China University of Technology, Guangzhou International Campus, Guangzhou, Guangdong 510006, China
| | - Chao Yang
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou, Guangdong 511442, China
- Department of Orthopedics, Academy of Orthopedics-Guangdong Province, Orthopedic Hospital of Guangdong Province, Guangdong Provincial Key Laboratory of Bone and Joint Degenerative Diseases, The Third Affiliated Hospital of Southern Medical University, Guangzhou, 510665, China
| | - Zhibin Zhao
- Medical Research Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong 510080, China
| | - Jianati Dawulieti
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou, Guangdong 511442, China
| | - Zikun Shen
- School of Medicine, South China University of Technology, Guangzhou International Campus, Guangzhou, Guangdong 510006, China
| | - Yunjiao Zhang
- School of Medicine, South China University of Technology, Guangzhou International Campus, Guangzhou, Guangdong 510006, China
| | - Jin-Zhi Du
- School of Medicine, South China University of Technology, Guangzhou International Campus, Guangzhou, Guangdong 510006, China
| | - Shan Guan
- National Engineering Research Center of Immunological Products, Third Military Medical University, Chongqing 400038, China
| | - Dan Shao
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou, Guangdong 511442, China
- School of Medicine, South China University of Technology, Guangzhou International Campus, Guangzhou, Guangdong 510006, China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, Guangdong 510006, China
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