Antigenicity and immunogenicity of SARS-CoV S protein receptor-binding domain stably expressed in CHO cells.
Antigenicity and immunogenicity of SARS-CoV S protein receptor-binding domain stably expressed in CHO cells.
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DOI:
10.1016/j.bbrc.2009.05.003
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发表时间:
2009-07-10
影响因子:
3.1
通讯作者:
Jiang, Shibo
中科院分区:
文献类型:
--
作者:
Du, Lanying;Zhao, Guangyu;Li, Lin;He, Yuxian;Zhou, Yusen;Zheng, Bo-Jian;Jiang, Shibo
The receptor-binding domain (RBD) of SARS coronavirus (SARS-CoV) spike (S) protein contains multiple conformation-dependent epitopes that induce neutralizing antibody responses. Here we used CHO-K1 cells to establish a cell line for stable expression of a 193-mer (residues 318–510) RBD (RBD193-CHO) and determined its antigenicity and immunogenicity. We found that RBD193-CHO reacted strongly with a panel of six monoclonal antibodies recognizing various conformational and linear epitopes in RBD, suggesting that this recombinant protein maintains intact conformation and good antigenicity. Immunization of mice with RBD193-CHO resulted in induction of high titers of RBD-specific neutralizing antibodies and potent IL-4-expressing T cell responses. RBD193-CHO induced immunity that protected a majority of the vaccinated mice from SARS-CoV challenge. These results suggest that the recombinant RBD produced in an established stable cell line maintains strong immunogenicity with high potential for use as an effective and economic subunit SARS vaccine.
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DOI:
10.1016/s0140-6736(03)13077-2
发表时间:
2003-04-19
期刊:
Lancet (London, England)
影响因子:
--
作者:
Peiris JS;Lai ST;Poon LL;Guan Y;Yam LY;Lim W;Nicholls J;Yee WK;Yan WW;Cheung MT;Cheng VC;Chan KH;Tsang DN;Yung RW;Ng TK;Yuen KY;SARS study group
通讯作者:
SARS study group
影响因子:
4.1
作者:
Bäckström, M;Link, T;Hansson, GC
通讯作者:
Hansson, GC
DOI:
10.1016/j.bbrc.2004.02.148
发表时间:
2004-04-16
影响因子:
3.1
作者:
Lim, LH;Li, HY;Chua, KY
通讯作者:
Chua, KY
DOI:
10.1016/j.bbrc.2004.09.106
发表时间:
2004-11-12
影响因子:
3.1
作者:
He Y;Zhou Y;Liu S;Kou Z;Li W;Farzan M;Jiang S
通讯作者:
Jiang S
影响因子:
5.5
作者:
Huang J;Cao Y;Du J;Bu X;Ma R;Wu C
通讯作者:
Wu C