Breaking tolerance in hepatitis B surface antigen (HBsAg) transgenic mice by vaccination with cross‐reactive, natural HBsAg variants
Breaking tolerance in hepatitis B surface antigen (HBsAg) transgenic mice by vaccination with cross‐reactive, natural HBsAg variants
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通过接种交叉反应性天然 HBsAg 变体,打破乙型肝炎表面抗原 (HBsAg) 转基因小鼠的耐受性
DOI:
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发表时间:
2003
影响因子:
5.4
通讯作者:
J. Reimann
中科院分区:
文献类型:
--
作者:
R. Schirmbeck;N. Dikopoulos;M. Kwissa;F. Leithäuser;K. Lamberth;S. Buus;K. Melber;J. Reimann
Processing exogenous hepatitis B surface antigen (HBsAg) of the hepatitis B virus (HBV) generates the Kb‐binding S208–215 epitope 1; processing endogenous HBsAg generates theKb‐binding S190–197 epitope 2. Cross‐reactive CD8+ T cell responses were primed to epitope 1 but not epitope 2 when mice were immunized with natural HBsAgayw, orHBsAgadw2 variants differing within both epitopes by one or two residues. Expression of HBsAgayw from a transgene in the liver renders (HBs‐tg) mice tolerant to epitope 1 of HBsAgayw. CD8+ T cells specific for epitope 1 could be primed in HBs‐tg mice by HBsAgadw2; these specific CD8+ T cells cross‐reacted with epitope 1 processed from the transgene‐encoded HBsAgayw. The liver of vaccinated HBsAgayw transgenic mice showed severe histopathology and contained functional (IFNγ‐producing), cross‐reactive CD8+ T cells, and vaccinated HBs‐tg mice showed reduced antigenemia. Hence, vaccination with natural HBsAg variants from different HBV sero/genotypes can prime cross‐reactive, specific CD8+ T cellimmunity that breaks tolerance to HBsAg.
影响因子:
4.4
作者:
Susanne Wirth;L. Guidotti;K. Ando;H. Schlicht;F. Chisari
通讯作者:
Susanne Wirth;L. Guidotti;K. Ando;H. Schlicht;F. Chisari
DOI:
10.1016/0168-9525(89)90057-7
发表时间:
1989
期刊:
Trends in genetics : TIG
影响因子:
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作者:
H. Blum;H. Blum;H. Blum;Wolfgang Gerok;Wolfgang Gerok;Wolfgang Gerok;G. Vyas;Girish N. Vyas-Girish-N.-Vya
通讯作者:
H. Blum;H. Blum;H. Blum;Wolfgang Gerok;Wolfgang Gerok;Wolfgang Gerok;G. Vyas;Girish N. Vyas-Girish-N.-Vya
影响因子:
13.5
作者:
Wai, CT;Chu, CJ;Lok, ASF
通讯作者:
Lok, ASF