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T淋巴细胞在免疫调控和细胞免疫反应中起着重要作用。T细胞功能测定法有体内法与体外法两种。一、体内法:即迟发型皮肤变态反应试验。基本原理是致敏(或未致敏)T细胞被皮内注入的特异抗原(或有丝分裂原)激活,产生各种淋巴因子,引起局部充血、水肿、细胞浸润。根据发红及硬结的有无及直径大小,判定阳性
T lymphocytes play an important role in immune regulation and cellular immune responses. T cell function test in vivo and in vitro two. First, the body method: delayed type skin allergy test. The rationale is that sensitized (or non-sensitized) T cells are activated by a specific antigen (or mitogen) that is injected intradermally, producing various lymphokines and causing local congestion, edema, and cell infiltration. According to redness and induration of the existence and size of the diameter, determine the positive