胸腺功能的发现是近十余年来医学上的重大进展之一。正常胸腺在中枢神经系统和其他内分泌腺的影响下,发挥中枢免疫器官的作用。胸腺能分泌多种激素或因子作用于T淋巴细胞分化成熟不同阶段的前体细胞,通过这些细胞中的环磷鸟苷(cGMP)或环磷腺苷(cAMP)介导了不同功能T淋巴细胞的成熟,从而调节免疫系统的功能。胸腺本身功能不足,或依赖胸腺的免疫系统出现明显的原发性或继发性缺陷,而 The discovery of thymus function is one of the major medical advances in recent ten years. Normal thymus in the central nervous system and other endocrine glands under the influence of the central immune organs play a role. Thymus can secrete a variety of hormones or factors acting on the differentiation of T lymphocytes at different stages of precursor cells through these cells in the ring of cyclic phosphorus (cGMP) or cyclic adenosine monophosphate (cAMP) mediated different functions of T lymphocytes The maturation, thus regulating the function of the immune system. Thymus itself lack of function, or rely on the thymus immune system obvious primary or secondary defects, and