肿瘤干细胞的研究现状

传统理论认为肿瘤生长是所有肿瘤细胞一起增殖的结果,因而治疗方法主要是针对肿瘤组织内的大多数细胞,常有复发和转移,使治疗失败。肿瘤干细胞的提出,可靶向性杀伤肿瘤干细胞从而使根治肿瘤和防止肿瘤复发和转移成为可能,且先前诸多关于肿瘤发生发展机制、细胞信号途径等研究成果可能需要重新评价,对传统的肿瘤治疗方式提出了巨大挑战。就肿瘤干细胞的起源、存在证据、肿瘤干细胞与正常干细胞之间关系、临床意义及展望综述如下。

Development of cancer stem cell

According to traditional theory tumor growth arised from the proliferation of all tumor cells, therefore management mainly aimed at the majority of the cells within cancer tissue. As a result, relapse and metastasis developed often, which caused treatment failure. It was stem cell that makes it possible to treat cancer radically and prevent it from relapsing and metastasizing by specifically killing targeted cancer stem cells and even some old concepts such as tumorigenesis mechanism, cell signaling pathways etc may need to be reevaluated, that raised great challenge to traditional oncotherapy. In this text the origin and existing evidence of cancer stem cell, it's relationship to common stem cell, clinical significance and prospect were reviewed.