我们知道，人体对外来抗原的免疫应答依赖t细胞和特异性抗原递呈细胞(APC)之间协调的相互作用。
It is generally accepted that normal immune response to extrinsic antigens depends on coordinating interaction between t cells and antigen presenting cells (APCs).
而T细胞表位的产生依赖于抗原加工提呈过程。
The production of t cell epitopes depends on the antigen processing and presentation pathway.
方法：应用SP免疫组化法，检测P 21, P27等细胞周期依赖性激酶抑制剂和增殖细胞核抗原(pcna)在角膜上皮不同部位的表达情况。
METHODS: the expressions of CKI, P27, P21 and proliferating cell nuclear antigen (PCNA) were tested in different regions of corneal epithelium by SP immunohistochemistry.
酶免疫分析技术的质量依赖于抗原的纯度、抗体的特异性、合适标记酶的选用，其灵敏度取决于标记酶的高度纯化和高转化率。
The quality of an enzyme immunoassays depends very much on the purity of the antigen or hapten used for conjugation, the specificity of the antibody and the choice of a suitable enzyme label.
记忆B细胞被认为是记忆干细胞，通过抗原依赖和非抗原依赖的方式，能转化为浆细胞而产生抗体。
Memory B cells behave as 'memory stem cells' capable of generating plasma cells and antibodies in an antigen-dependent as well as in an antigen-independent fashion.
记忆B细胞被认为是记忆干细胞，通过抗原依赖和非抗原依赖的方式，能转化为浆细胞而产生抗体。
Memory B cells behave as 'memory stem cells' capable of generating plasma cells and antibodies in an antigen-dependent as well as in an antigen-independent fashion.
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