They also may use immunotherapy -- getting the body's immune system to fight the cancer.
VOA: special.2010.07.06
It's how quickly, how promptly we can recover from these painful emotions-- in other words, how strong our psychological immune system is.
区别在于他们能够多么迅速,多么快速地从痛苦情绪中恢复过来-,换言之,我们的心理免疫系统有多强。
And so this slide just illustrates that in a simple way, the range of different kinds of organisms that your immune system is trying to--whoops!
这个幻灯片只是简要概括了,各种不同微生物的范围,你的免疫系统正在尝试,噢
And so we talked very briefly last time about this business of antigen presentation, how your immune system-- one of the things that it does especially well, is recognize what's part of you and what's not part of you.
上次我们简单的提到过,有关抗原呈递的一些知识,你的免疫系统如何,这也是免疫系统尤其擅长的一点,就是识别哪些部分属于你,哪些不属于
We're going to talk about this kind of non-covalent interaction more when we talk about the immune system, because one example of ligand and receptors that's important in the immune system are antigens - foreign molecules, and antibodies - molecules that we produce.
当我们讲到免疫系统的时候,会更详细地谈到这种非共价化合反应,因为在免疫系统中,一个重要的配体受体结合反应,就是抗原,即外源分子,与抗体,这个人体自身产生的分子结合
Now, if I was a person that was designing a vaccine and I noticed that this was the response that it got, that antibodies were produced, they reached some intermediate level, they started to fall, I would say, "Well I haven't stimulated the immune system enough, let me re-boost, let me give another dose of antigen."
现在,如果我正在研究一种疫苗,我注意到机体会对这种疫苗产生应答,也就是会产生抗体,当抗体浓度达到中等水平后,就开始下降,就可以说,疫苗对免疫系统刺激还不足,我需要提高抗原浓度,让我再把剂量再加大一倍
The immune system, some cells of the immune system, in particular this class of T-cells called CD8 cells have receptors which recognize MHC1.
免疫系统,其中一些免疫细胞,特别是T细胞中的,CD8细胞含有可识别MHC1的受体
So, that's antigen presentation to this population of cells called cytotoxic T-cells, Tc, a subset of the class of T-cells in the immune system.
这些细胞被呈递给另一种细胞,这些细胞被称为细胞毒性T细胞,是免疫系统中T淋巴细胞的亚群中的一种
Here's where the intelligence of the immune system comes in, is that these cytotoxic T-cells that are generated only kill cells that have this signal on it.
免疫系统的聪明之处就在此,这些细胞毒T细胞,只能杀死具有特殊标记信号的细胞
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