近年以来,哺乳动物细胞的离体培养,愈来愈多地引起形态、生化和生理各个不同方面研究者的注意。由于高等动物体内组织器官相互作用的复杂条件,细胞的某些特性很难于进行研究,而在离体培养的条件下,这些研究便成为可能。但是,通常认为形态上一致的一个细胞株,毕竟是由混杂存在于原始移植块的多种细胞生长而成。研究者们为了 In recent years, the in vitro culture of mammalian cells has increasingly attracted the attention of researchers in different aspects of morphology, biochemistry and physiology. Due to the complex conditions of organ-organ interactions in higher animals, certain features of the cell are difficult to study, and these studies are possible under in vitro culture conditions. However, it is generally accepted that a morphologically identical cell line, after all, is grown from a variety of cells that are present in the original graft. Researchers in order to