科学教条经常被推翻,例如大多数发育生物学家曾推测近期产生自干细胞或称为祖细胞(progenitors)的幼稚细胞已经具有了与其他细胞之间的相互交流的能力,事实上并非如此。来自卡内基Allan Sprading和博士后Ming-Chia Lee的最新研究证实,婴儿细胞在能够参与以细胞正常发育和顺利完成其功能为基础的组群相互作用之前,幼稚细胞必须经历一个特异基因的发育过程。早期阶段的细胞不能完全进行信息交流可能为我们理解正常发育的细胞和癌细胞的基因活性如何改变提供了重要的暗示。 Science dogmas are often overthrown. For example, most developmental biologists have speculated that the recent birth of stem cells or progenitors of naive cells already has the ability to interact with other cells, which is not. Recent research by Allan Sprading of Carnegie and postdoctoral Ming-Chia Lee confirms that naïve cells must undergo the development of a specific gene before they can participate in cohesive interactions based on normal function of the cell and the successful completion of their function . The inability of early cells to communicate is likely to provide important hints for understanding how the gene activity of normally-growing cells and cancer cells changes.