The gradually accumulated information and knowledge regarding cancer stem cell or stem-like cancer cell greatly potentiated the research progression of radiation oncology and biology. In recent yeats, a series studies have uncovered that the cancer stem cell and cancer quiescent cell could be the major ceils origin attributed to the radioresistance and recurrence of tumors in the course of radiotherapy. A rapid research progression has already been achieved respecting the radiosensitivity and related mechanisms of these two subsets of cancer ceils, and which provides an idea strategy for devel...
