North M E, Newton C A, Webster A D
Clin Exp Immunol. 1980 Dec;42(3):523-9.
T and B lymphocytes from blood and tonsils, as well as T and B lymphoid cell lines, phosphorylate deoxyguanosine which is probably the major toxic metabolite in purine nucleoside phosphorylase (PNP) deficiency. T and B cells also have similar activities of purine nucleoside phosphorylase. These findings indicate that the selective T cell defect in patients with PNP deficiency is unlikely to be due to a selective 'trapping' of deoxyguanosine by T lymphocytes.
来自血液和扁桃体的T淋巴细胞和B淋巴细胞,以及T和B淋巴细胞系,会使脱氧鸟苷磷酸化,而脱氧鸟苷可能是嘌呤核苷磷酸化酶(PNP)缺乏症中的主要毒性代谢产物。T细胞和B细胞也具有相似的嘌呤核苷磷酸化酶活性。这些发现表明,PNP缺乏症患者中选择性的T细胞缺陷不太可能是由于T淋巴细胞对脱氧鸟苷的选择性“捕获”所致。