发信人: liuxy (niuniu), 信区: Biology
标 题: Re: [转载] AIDS感染人体后，为什么有的人活得长一些?
发信站: The unknown SPACE (Tue Apr 16 02:52:51 2002) WWW-POST

Normally for antigens inside a cell, antibody is not very effective because
it's too big and can't enter the cell.

There are other cellular immune mechanisms involved in fight AIDS virus such
as generating cytokines.

AIDS virus enters T-lymphocyte with CD4 receptors. A small percentage of
people have an altered CD4 receptor which renders them AIDS-free. This depends
on the individual's genes.

Too much immune response leads to quick death because the individual's
infected lymphocytes may be destroyed fast and there are not enough
T-lymphocytes to fight other diseases.

Too little immune response also leads to quick death because the infected
lymphocytes lose function quickly.

Most of the time it depends on genes.

【 在 chickiller (双面亚当~凸要大，凹要小) 的大作中提到: 】
: 【 以下文字转载自 Science 讨论区 】
: 【 原文由 chickiller 所发表 】
: 菜鸟问一土问题
: 一般来说，强壮的人活得长一些。是不是强壮的人免疫系统功能更强，产生的抗体数量
多
: 一些?
: 在病人的病毒彻底发作导致死亡之前，病毒是不是溶源性存在于寄主细胞里? 抗体大分
子
: 怎么进入细胞?
:
:


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