| 摘 要： | Cancer is composed of heterogeneous cell populations.Not every cell in the tumor has the capacity to initiate and sustain tumor growth.It has been postulated that only a subset of cells,the so-called cancer stem cells (CSCs),are able to initiate and propagate tumor development.In two papers published on Nov.19,2006 issue of Nature(doi:10.1038/nature 05372,and doi:10.1038/nature 05384),CSCs are shown to exist in human colon cancer.CSCs have the capacity to regenerate themselves and produce non-CSC progeny.To examine whether colon
|
