干细胞是人体的原始细胞,它通过细胞分裂的很多细胞周期分化成更为特定的细胞类型。它们是怎么做到的呢?卡内基胚胎学系的科学家们发现一种叫做scrawny的基因,这种基因似乎是保持大量干细胞处于未分化状态的关键因子。了解干细胞如何保持它们分化潜能的机制,对于基础生物学领域 Stem cells are the body’s primitive cells that differentiate into more specific cell types through many cell cycles of cell division. How did they do it? Scientists at Carnegie’s Department of Embryology discovered a gene called scrawny that appears to be a key factor in keeping a large number of stem cells in an undifferentiated state. Mechanisms to understand how stem cells maintain their differentiation potential are fundamental to the field of biology