These cells are irreversibly blocked in their ability to proliferate, although they may perform specialized functions for a long period of time, perhaps with the exception of chronic myelogenous leukemia (CML).

这些细胞在其增殖能力方面受到不可逆转的阻断，尽管它们可能长时间发挥特殊功能，或许慢性髓性白血病（CML）除外。