近年来,随着放射生物学和免疫学研究的不断深入,业经发现淋巴细胞不仅是高辐射敏感性的细胞群,且其亚群各具不同的辐射敏感性,任何一个亚群对电离辐射的反应必将会影响到其它群体的功能,从而涉及到整个免疫系统。因此,对淋巴细胞及其亚群辐射敏感性的研究以及对影响辐射敏感性因素和机理的探讨,将对研究辐射损伤效应、寻找辐射损伤的诊断指标、选择辐射损伤治疗和防护措施等等提供理论依据和实验手段。对淋巴细胞及其亚群的辐射敏感性的研究已成为放射生物学和免疫学中的一个重要课题,国内起步较晚 In recent years, with the continuous deepening of research on radiobiology and immunology, it has been found that lymphocytes are not only highly radiation sensitive cell populations, but also their subgroups have different radiation sensitivities. Any one of the subpopulations is responsible for ionizing radiation. The response will inevitably affect the functions of other groups and thus involve the entire immune system. Therefore, studies on the radiosensitivity of lymphocytes and their subpopulations as well as on the factors and mechanisms affecting radiation sensitivity will be provided for studying the effects of radiation damage, finding diagnostic indicators for radiation damage, selecting radiation damage treatment and protective measures, etc. Theoretical basis and experimental means. The study of the radiosensitivity of lymphocytes and their subpopulations has become an important issue in radiobiology and immunology.