Shore A, Dosch H M, Gelfand E W
Clin Exp Immunol. 1981 Apr;44(1):152-5.
The role of adenosine deaminase in the initial stages of precursor T cell differentiation was examined in patients with adenosine deaminase deficiency. Incubation of precursor T cells from adenosine deaminase-deficient patients directly in contact with thymic epithelial monolayers induced receptors for sheep erythrocytes (E rosettes). Pretreatment of these monolayers with erythro-9-(2-hydroxy-3-nonyl) adenine, an inhibitor of adenosine deaminase, prevented differentiation only of adenosine deaminase-deficient T cell precursors, and this could be restored by providing adenosine deaminase following the incubation with thymic epithelial cells. These studies indicate a role for adenosine deaminase in the earliest stages of T cell differentiation.
在腺苷脱氨酶缺乏症患者中,研究了腺苷脱氨酶在前体T细胞分化初始阶段的作用。将腺苷脱氨酶缺乏症患者的前体T细胞直接与胸腺上皮单层细胞共培养,可诱导出绵羊红细胞受体(E花环)。用腺苷脱氨酶抑制剂erythro-9-(2-羟基-3-壬基)腺嘌呤预处理这些单层细胞,仅能阻止腺苷脱氨酶缺乏的T细胞前体的分化,而在与胸腺上皮细胞共培养后提供腺苷脱氨酶,这种分化可得以恢复。这些研究表明腺苷脱氨酶在T细胞分化的最早阶段发挥作用。