Abstract:
:Porcine epidemic diarrhea (PED) is an important re-emergent infectious disease and inflicts huge economic losses to the swine industry worldwide. To meet the pressing need of developing a safe and cost-efficient PED maternal vaccine, we generated three PED subunit vaccine candidates, using recombined Salmonella flagellin (rSF) as a mucosal molecular adjuvant. Domain D3 in rSF was replaced with COE domain of PEDV to generate rSF-COE-3D. COE fused to the flanking C'/N' terminal of rSF yielded rSF-COE-C and rSF-COE-N. As a result, rSF-COE-3D could significantly improve COE specific antibody production including serum IgG, serum IgA, mucosal IgA and PEDV neutralizing antibody. Furthermore, rSF-COE-3D elicited more CD3+CD8+ T cell and cytokine production of IFN-γ and IL-4 in mouse splenocytes. In summary, our data showed that rSF-COE-3D could improve specific humoral and mucosal immunity in mice, thus suggesting that rSF-COE-3D could be applied as a novel efficient maternal PED vaccine.
journal_name
Vaccinejournal_title
Vaccineauthors
Li Q,Peng O,Wu T,Xu Z,Huang L,Zhang Y,Xue C,Wen Z,Zhou Q,Cao Ydoi
10.1016/j.vaccine.2018.01.086subject
Has Abstractpub_date
2018-03-07 00:00:00pages
1381-1388issue
11eissn
0264-410Xissn
1873-2518pii
S0264-410X(18)30159-2journal_volume
36pub_type
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