Structures of Foot-and-mouth Disease Virus with neutralizing antibodies derived from recovered natural host reveal a mechanism for cross-serotype neutralization.
Structures of Foot-and-mouth Disease Virus with neutralizing antibodies derived from recovered natural host reveal a mechanism for cross-serotype neutralization.
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口蹄疫病毒的结构与来自恢复的自然宿主的中和抗体揭示了跨血清型中和的机制
DOI:
10.1371/journal.ppat.1009507
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发表时间:
2021-04
期刊:
影响因子:
6.7
通讯作者:
Lou Z
中科院分区:
文献类型:
--
作者:
He Y;Li K;Cao Y;Sun Z;Li P;Bao H;Wang S;Zhu G;Bai X;Sun P;Liu X;Yang C;Liu Z;Lu Z;Rao Z;Lou Z
The development of a universal vaccine against foot-and-mouth disease virus (FMDV) is hindered by cross-serotype antigenic diversity and by a lack of knowledge regarding neutralization of the virus in natural hosts. In this study, we isolated serotype O-specific neutralizing antibodies (NAbs) (F145 and B77) from recovered natural bovine hosts by using the single B cell antibody isolation technique. We also identified a serotype O/A cross-reacting NAb (R50) and determined virus-NAb complex structures by cryo-electron microscopy at near-atomic resolution. F145 and B77 were shown to engage the capsid of FMDV-O near the icosahedral threefold axis, binding to the BC/HI-loop of VP2. In contrast, R50 engages the capsids of both FMDV-O and FMDV-A between the 2- and 5-fold axes and binds to the BC/EF/GH-loop of VP1 and to the GH-loop of VP3 from two adjacent protomers, revealing a previously unknown antigenic site. The cross-serotype neutralizing epitope recognized by R50 is highly conserved among serotype O/A. These findings help to elucidate FMDV neutralization by natural hosts and provide epitope information for the development of a universal vaccine for cross-serotype protection against FMDV.
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影响因子:
11.8
作者:
Ayelet G;Mahapatra M;Gelaye E;Egziabher BG;Rufeal T;Sahle M;Ferris NP;Wadsworth J;Hutchings GH;Knowles NJ
通讯作者:
Knowles NJ
影响因子:
5.5
作者:
Brehm, K. E.;Kumar, N.;Haas, B.
通讯作者:
Haas, B.
影响因子:
3.8
作者:
CROWTHER, JR;FARIAS, S;SAMUEL, AR
通讯作者:
SAMUEL, AR
影响因子:
3.3
作者:
Diaz-San Segundo, Fayna;Medina, Gisselle N.;de los Santos, Teresa
通讯作者:
de los Santos, Teresa
影响因子:
11.4
作者:
Hewat, EA;Verdaguer, N;Stuart, DI
通讯作者:
Stuart, DI