普通ALL和CML淋巴母细胞危象的白血病幼稚细胞及原淋巴细胞系Nalm-1细胞,均共同表现有高水平的5’-核苷酸酶(5’-N)和普通ALL抗原(cA-LLA)。临床上这有助于白血病分型,并可能有诊断和预后的价值。5’-N可见于许多人类不同组织的细胞表面,但仅见于部分末梢血的B或T淋巴细胞中。作者发现白血病细胞5’-N的高度活性与cALLA的出现有 The common ALL and CML lymphoblast crisis immature leukemia naïve cells and naïve lymphocyte line Nalm-1 cells all exhibit high levels of 5′-nucleotidase (5′-N) and common ALL antigen (cA- LLA). This contributes to leukemic typing clinically and may have diagnostic and prognostic value. 5'-N can be found on the cell surface of many different human tissues, but only in the peripheral blood of B or T lymphocytes. The authors found that the high activity of 5′-N in leukemia cells and the appearance of cALLA