白血病抑制因子（ｌｅｕｋｅｍｉａｉｎｈｉｂｉｔｏｒｙｆａｃｔｏｒ，ＬＩＦ）是多功能的细胞因子，在不同组织和细胞中具有多种生物活性［１］。近年的研究发现，ＬＩＦ的胚泡发育及着床中具有重要生物学功能，更引起人们对这一细胞因子的广泛重视，现仅将ＬＩＦ的生物... Leukemia inhibitory factor (LIF) is a multifunctional cytokine that has a variety of biological activities in different tissues and cells [1]. In recent years, the study found that LIF blastocyst development and implantation have important biological functions, but also cause widespread concern about this cytokine, now only LIF biological ...