China Animal Husbandry and Veterinary Medicine ›› 2024, Vol. 51 ›› Issue (11): 4932-4942.doi: 10.16431/j.cnki.1671-7236.2024.11.028

• Preventive Veterinary Medicine • Previous Articles    

Progress on Delivery Systems of mRNA Vaccine

LI Ziwei1,2, ZHANG Lei3, CHEN Feng4, ZHENG Hui2, CUI Jin2,5,7, CAO Zhenshan4, ZHANG Hui2,6, GE Shengqiang2,5,6,7, WEI Rong2,5,6, LIU Fuxiao1, NAN Fulong1, SHA Zhou2,5,7, NI Bo2,5,6,7   

  1. 1. College of Veterinary Medicine, Qingdao Agricultural University, Qingdao 266109, China;
    2. China Animal Health and Epidemiology Center, Qingdao 266032, China;
    3. Shandong New Hope Liuhe Group Co., Ltd., Qingdao 266100, China;
    4. Shandong Animal Disease Prevention and Control Center, Jinan 250100, China;
    5. Key Laboratory of Animal Biosafety Risk Prevention and Control (South), Ministry of Agriculture and Rural Affairs, Qingdao 266032, China;
    6. Qingdao Key Laboratory of Modern Bioengineering and Animal Disease Research, Qingdao 266032, China;
    7. Qingdao Key Laboratory of Animal Biosafety, Qingdao 266032, China
  • Received:2024-03-21 Published:2024-10-31

Abstract: Compared with traditional vaccines,mRNA vaccines have the advantages of easy compilation,high immunogenicity,strong safety and low production cost.The efficient delivery of mRNA to cells and successful expression is the key link for mRNA vaccines to play a role,and also the main bottleneck and pain point of mRNA vaccine research and development.Therefore,screening for cost-effective nucleic acid delivery systems is crucial for mRNA vaccine development.At present,nucleic acid delivery systems with more attention mainly include physical delivery,lipid nanoparticle delivery,polymer delivery,exosome delivery and cationic emulsion delivery.Physical delivery is basically the physical process of getting naked mRNA directly across the cell membrane into the cell.Lipid nanoparticle,polymers,exosomes and cationic emulsions protect mRNA by using themselves as delivery carriers,thereby improving delivery efficiency and reducing immune response.Based on the latest research progress of mRNA vaccines,the author summarized the application prospects and limitations of different delivery methods,and prospected their research prospects.It is expected to provide a theoretical basis for the development of a new delivery system,promote the clinical application of mRNA therapy,and provide a new mRNA vaccine solution for the prevention and treatment of more diseases.

Key words: mRNA vaccine; delivery systems; physical delivery; lipid nanoparticles; polymers

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