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近十多年来,通过对淋巴细胞的深入研究,特别是胸腺功能的发现,使细胞免疫学有了很大的进展。自家免疫性疾病、组织器官移植、免疫缺损病以及恶性肿瘤与细胞免疫学的关系,也愈来愈受到重视。体内淋巴细胞可分为T淋巴细胞和B淋巴细胞两大类。T淋巴细胞的大部分参与血液再循环,是血液循环中小淋巴细胞的主要组成部分,占70%左右。T淋巴细胞在抗原刺激下可转化为较原始的母细胞,通过分裂繁殖成为许多具有免疫活性的小淋巴细胞,并释放出多种淋巴因子或淋巴介质参与细胞免疫反应。B淋巴
In the recent ten years, through the deep research on lymphocytes, especially the discovery of thymus function, cellular immunology has made great progress. The relationship between autoimmune diseases, tissue and organ transplantation, immunodeficiency diseases and malignant tumors and cellular immunology is also receiving more and more attention. In vivo lymphocytes can be divided into two major categories of T lymphocytes and B lymphocytes. Most of T lymphocytes involved in blood circulation, is the main component of small blood cells in the blood circulation, accounting for about 70%. T lymphocytes can be transformed into more primitive cells under the stimulation of antigen and become many immunocompetent small lymphocytes by division and release many kinds of lymphokines or lymphatic mediators to participate in cellular immune responses. B lymph