» Articles » PMID: 33019519

The Combination of Molecular Adjuvant CCL35.2 and DNA Vaccine Significantly Enhances the Immune Protection of Against CyHV-2 Infection

Overview
Date 2020 Oct 6
PMID 33019519
Citations 10
Authors
Affiliations
Soon will be listed here.
Abstract

Cyprinid herpesvirus 2 (CyHV-2) infection results in huge economic losses in gibel carp () industry. In this study, we first constructed recombinant plasmids pcORF25 and pcCCL35.2 as DNA vaccine and molecular adjuvant against CyHV-2, respectively, and confirmed that both recombinant plasmids could be effectively expressed in vitro and in vivo. Then, the vaccination and infection experiments ( = 50) were set as seven groups. The survival rate (70%) in ORF25/CCL35.2 group was highest. The highest specific antibody levels were found in ORF25/CCL35.2 group in major immune tissues by qRT-PCR, and confirmed in serum by ELISA assay, antibody neutralization titer, and serum incubation-infection experiments. Three crucial innate immune indices, namely C3 content, lysozyme, and total superoxide dismutase (TSOD) activities, were highest in ORF25/CCL35.2 group in serum. pcORF25/pcCCL35.2 can effectively up-regulate mRNA expressions of some important immune genes (IL-1β, IL-2, IFN-γ2, and viperin), and significantly suppress CyHV-2 replication in head kidney and spleen tissues. The minimal tissue lesions can be seen in ORF25/CCL35.2 group in gill, spleen, and trunk kidney tissues by histopathological examination. The results indicated that the combination of DNA vaccine pcORF25 and molecular adjuvant pcCCL35.2 is an effective method against CyHV-2 infection, suggesting a feasible strategy for the control of fish viral diseases.

Citing Articles

Genomic and molecular characterization of a cyprinid herpesvirus 2 YC-01 strain isolated from gibel carp.

Yang J, Xiao S, Lu L, Wang H, Jiang Y Heliyon. 2024; 10(13):e32811.

PMID: 39035518 PMC: 11259805. DOI: 10.1016/j.heliyon.2024.e32811.


Adjuvant Effects of a CC Chemokine for Enhancing the Efficacy of an Inactivated Vaccine in Nile Tilapia ().

Soontara C, Uchuwittayakul A, Kayansamruaj P, Amparyup P, Wongpanya R, Srisapoome P Vaccines (Basel). 2024; 12(6).

PMID: 38932370 PMC: 11209360. DOI: 10.3390/vaccines12060641.


Generation and Characterization of ORF55/ORF57-Deleted Recombinant 2 Mutants with Chimeric Capsid Protein Gene of Grouper Nervous Necrosis Virus.

Feng Z, Cheng W, Ma M, Yu C, Zhang Y, Lu L Vaccines (Basel). 2024; 12(1).

PMID: 38250856 PMC: 10820899. DOI: 10.3390/vaccines12010043.


Oral administration of hepcidin and chitosan benefits growth, immunity, and gut microbiota in grass carp ().

Zhou J, Feng M, Zhang W, Kuang R, Zou Q, Su J Front Immunol. 2023; 13:1075128.

PMID: 36591242 PMC: 9798086. DOI: 10.3389/fimmu.2022.1075128.


Current status and development prospects of aquatic vaccines.

Du Y, Hu X, Miao L, Chen J Front Immunol. 2022; 13:1040336.

PMID: 36439092 PMC: 9684733. DOI: 10.3389/fimmu.2022.1040336.


References
1.
Kutzler M, Weiner D . DNA vaccines: ready for prime time?. Nat Rev Genet. 2008; 9(10):776-88. PMC: 4317294. DOI: 10.1038/nrg2432. View

2.
Garlanda C, Dinarello C, Mantovani A . The interleukin-1 family: back to the future. Immunity. 2013; 39(6):1003-18. PMC: 3933951. DOI: 10.1016/j.immuni.2013.11.010. View

3.
Zhang J, Zhang B, Sun L . P247 and p523: two in vivo-expressed megalocytivirus proteins that induce protective immunity and are essential to viral infection. PLoS One. 2015; 10(3):e0121282. PMC: 4376877. DOI: 10.1371/journal.pone.0121282. View

4.
Lillard Jr J, Singh U, Boyaka P, Singh S, Taub D, McGhee J . MIP-1alpha and MIP-1beta differentially mediate mucosal and systemic adaptive immunity. Blood. 2002; 101(3):807-14. DOI: 10.1182/blood-2002-07-2305. View

5.
Zhou Y, Jiang N, Ma J, Fan Y, Zhang L, Xu J . Protective immunity in gibel carp, Carassius gibelio of the truncated proteins of cyprinid herpesvirus 2 expressed in Pichia pastoris. Fish Shellfish Immunol. 2015; 47(2):1024-31. DOI: 10.1016/j.fsi.2015.11.012. View