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姊妹染色单体互换(SCE)技术是近年来用于检测诱变细胞和肿瘤细胞DNA损伤和修复障碍的重要手段。国内外学者用SCE技术对白血病进行了大量的研究,为了解白血病在分子水平上的发病机制积累了不少资料。但是对于白血病怎样由正常细胞演变而来,在演变的过程中,作为遗传物质的DNA发生了什么变化等重要问
Sister chromatid exchange (SCE) technology is an important means used in recent years to detect DNA damage and repair of mutagenic cells and tumor cells. Scholars at home and abroad have made a great deal of research on leukemia with SCE technique and accumulated a lot of data to understand the molecular mechanism of leukemia. But as for how leukemia has evolved from normal cells, it is important to ask what has changed as a genetic material in the process of evolution