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本帖最后由 StephenW 于 2011-8-22 20:54 编辑
alex1234 发表于 2011-8-22 19:54
eAg和cAg是很相似的,至于eAg的作用,至今也不明白。
"eAg和cAg是很相似的,至于eAg的作用,至今也不明白。" - 我非常同意.
有一些科学家认为eAg帮助乙肝病毒逃避免疫系统. 例如,studyforhope:
"Core epitope vaccines, even particle vaccines, fail, because the core is free of class I epitopes with only one exception the 18 to 27 AA core protein epitope as was used in the classical Cytel vaccine. it failed, because in most chronic carrier of the HLA A2 type, this epitope gets mutated and inactive, so the T cells stimulated/produced by the vaccine target nothing that exists in the virus anymore. This is BTW the only class I epitope that evolution has left in the core protein, against which the virus is normally protected by the e-Antigen flooding, it is also the epitope that is typically responsible for the clearance in acute HBV.""Core epitope vaccines, even particle vaccines, fail, because the core is free of class I epitopes with only one exception the 18 to 27 AA core protein epitope as was used in the classical Cytel vaccine. it failed, because in most chronic carrier of the HLA A2 type, this epitope gets mutated and inactive, so the T cells stimulated/produced by the vaccine target nothing that exists in the virus anymore. This is BTW the only class I epitope that evolution has left in the core protein, against which the virus is normally protected by the e-Antigen flooding, it is also the epitope that is typically responsible for the clearance in acute HBV."
但我不明白为什eAg消失,然后eAb出现.
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