Regression of a specialized cell or tissue to a simpler, more embryonic, unspecialized form.Dedifferentiation may occur before the regeneration of appendages in plants and certain animals and in the development of some cancers.

• 去分化，反分化指高度分化的细胞或组织向更简单，更初期非特化的形式的退化。去分化发生在植物和某些动物的附器的再生之前，或一些癌症出现的时候