Recombinant attenuated Salmonella Typhimurium with heterologous expression of the Salmonella Choleraesuis O-polysaccharide: high immunogenicity and protection.
Recombinant attenuated Salmonella Typhimurium with heterologous expression of the Salmonella Choleraesuis O-polysaccharide: high immunogenicity and protection.
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异源表达猪霍乱沙门氏菌 O-多糖的重组减毒鼠伤寒沙门氏菌:高免疫原性和保护性
DOI:
10.1038/s41598-017-07689-5
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发表时间:
2017-07-28
影响因子:
4.6
通讯作者:
Jia R
中科院分区:
文献类型:
--
作者:
Zhao X;Dai Q;Zhu D;Liu M;Chen S;Sun K;Yang Q;Wu Y;Kong Q;Jia R
Non-typhoidalSalmonellaare associated with gastrointestinal disease worldwide and invasive disease in Africa. We constructed novel bivalent vaccines through the recombinant expression of heterologous O-antigens fromSalmonellaCholeraesuis inSalmonellaTyphimurium. A recombinant Asd+plasmid pCZ1 with the clonedSalmonellaCholeraesuis O-antigen gene cluster was introduced into three constructedSalmonellaTyphimurium Δasdmutants: SLT11 (ΔrfbP), SLT12 (ΔrmlB-rfbP) and SLT16 (ΔrfbP∆pagL::TTaraCPBADrfbP). Immunoblotting demonstrated that SLT11 (pCZ1) and SLT12 (pCZ1) efficiently expressed the heterologous O-antigen. In the presence of arabinose, SLT16 (pCZ1) expressed both the homologous and heterologous O-antigens, whereas in the absence of arabinose, SLT16 (pCZ1) mainly expressed the heterologous O-antigen. We deleted thecrp/cyagenes in SLT12 (pCZ1) and SLT16 (pCZ1) for attenuation purposes, generating the recombinant vaccine strains SLT17 (pCZ1) and SLT18 (pCZ1). Immunization with either SLT17 (pCZ1) or SLT18 (pCZ1) induced specific IgG against the heterologous O-antigen, which mediated significant killing ofSalmonellaCholeraesuis and provided full protection against a lethal homologous challenge in mice. Furthermore, SLT17 (pCZ1) or SLT18 (pCZ1) immunization resulted in 83% or 50% heterologous protection againstSalmonellaCholeraesuis challenge, respectively. Our study demonstrates that heterologous O-antigen expression is a promising strategy for the development of multivalentSalmonellavaccines.
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影响因子:
5.5
作者:
Huang C;Liu Q;Luo Y;Li P;Liu Q;Kong Q
通讯作者:
Kong Q
影响因子:
7.8
作者:
Lin IY;Van TT;Smooker PM
通讯作者:
Smooker PM
影响因子:
168.9
作者:
Feasey, Nicholas A.;Dougan, Gordon;Kingsley, Robert A.;Heyderman, Robert S.;Gordon, Melita A.
通讯作者:
Gordon, Melita A.
影响因子:
3.2
作者:
HITCHCOCK, PJ;BROWN, TM
通讯作者:
BROWN, TM
影响因子:
3.1
作者:
HASSAN, JO;CURTISS, R
通讯作者:
CURTISS, R