Li Z, Ma Z, Li Y, Gao S, Xiao S. Porcine epidemic diarrhea virus: Molecular mechanisms of attenuation and vaccines.
Microb Pathog 2020;
149:104553. [PMID:
33011361 PMCID:
PMC7527827 DOI:
10.1016/j.micpath.2020.104553]
[Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 09/29/2020] [Accepted: 09/29/2020] [Indexed: 12/29/2022]
Abstract
Porcine epidemic diarrhea virus (PEDV) causes an emerging and re-emerging coronavirus disease characterized by vomiting, acute diarrhea, dehydration, and up to 100% mortality in neonatal suckling piglets, leading to huge economic losses in the global swine industry. Vaccination remains the most promising and effective way to prevent and control PEDV. However, effective vaccines for PEDV are still under development. Understanding the genomic structure and function of PEDV and the influence of the viral components on innate immunity is essential for developing effective vaccines. In the current review, we systematically describe the recent developments in vaccine against PEDV and the roles of structural proteins, non-structural proteins and accessory proteins of PEDV in affecting viral virulence and regulating innate immunity, which will provide insight into the rational design of effective and safe vaccines for PEDV or other coronaviruses.
Advances in vaccines of PEDV, such as inactivated and attenuated live vaccines, subunit vaccines, and nucleic acid vaccines.
The application of reverse genetics in the development of live attenuated PEDV vaccines.
The roles of PEDV proteins in affecting viral virulence and regulating innate immunity.
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