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【公司名稱】廣州健侖生物科技有限公司

【市場部】楊永漢
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【騰訊】
【公司地址】廣州市清華科技園健新基地番禺石樓鎮(zhèn)健啟路63號二期2幢101-103室

再一類具有自然殺傷作用的細(xì)胞，稱為自然殺傷細(xì)胞（natural killer cell）即NK細(xì)胞。在殺傷靶細(xì)胞時，不需要抗體與補(bǔ)體參與。2、有免疫記憶：免疫系統(tǒng)對初次抗原激的信息可留下記憶，即淋巴細(xì)胞一部分成為效應(yīng)細(xì)胞與入侵者作戰(zhàn)并殲滅之，另一部分分化成為記憶細(xì)胞進(jìn) 入靜止期，留待與再次與進(jìn)入機(jī)體的相同抗原相遇時，會產(chǎn)生與其相應(yīng)的抗體，避免第二次得相同的病。正反應(yīng)和負(fù)反應(yīng)3、有正反應(yīng)和負(fù)反應(yīng)：在一般情況下，產(chǎn)生特異性抗體或（和）致敏淋巴細(xì)胞以發(fā)揮免疫功能的稱為正反應(yīng)。在某些情況下，免疫系統(tǒng) 對再次抗原激不再產(chǎn)生針對該抗原的抗體或（和）致敏淋巴細(xì)胞，這是特異性的一種低反應(yīng)性或無反應(yīng)性，稱為負(fù)反應(yīng)，又稱免疫耐受性；多種細(xì)胞參與4、有多種細(xì)胞參與：針對抗原激的應(yīng)答主要是T細(xì)胞和B細(xì)胞，但在完成特異性免疫的過程中，還需要其他一些細(xì)胞（巨噬細(xì)胞、粒細(xì)胞等）的參與；個體的特征5、有個體的特征。
Another type of natural killer cells, known as natural killer cells (NK cells). In the killing of target cells, there is no need for antibody and complement to participate. 2, there is immune memory: the immune system for the first time the information of the antigen can leave memory, that is, some of the lymphocytes become effector cells fight with the intruder and annihilation, the other part of the differentiation into memory cells into the quiescent phase, to stay with and again into the body When the same antigen is encountered, the corresponding antibody will be produced to avoid the same disease the second time. Positive and Negative Reactions 3. Positive and Negative Reactions: In general, specific antibodies or (and) sensitized lymphocytes are used as positive responses. In some cases, the immune system no longer produces antibodies against the antigen or (and) sensitized lymphocytes against antigenic reactivation. This is a specific type of hyporesponsive or non-responsive, called negative response. Immune tolerance; a variety of cells involved in 4, a variety of cells involved: the response to antigens is mainly T cells and B cells, but in the process of specific immunity, but also need some other cells (macrophages , granulocytes, etc.) Individual characteristics 5. Individual characteristics

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