摘要
肿瘤干细胞(CSC)是存在于肿瘤组织或肿瘤细胞群中具有干细胞特性的亚群。CSC具有自我更新和分化能力,可以分化为特性各异的细胞。CSC因其强大的起始肿瘤能力和抵抗治疗的特性而成为关注的焦点。肿瘤干细胞理论从起初的单向等级分化模式,发展到现在的随机和等级分化交互模式,较好地解释了肿瘤在形态和功能方面的多样性,是研究肿瘤的发生和发展的理想模型。本文通过对近年来在肿瘤干细胞研究领域的部分卓越成就的解析,阐述了肿瘤干细胞在分化模式、微环境调控和动态变化等方面的特性。
Cancer stem cells (CSC) are a subset of cancer cells that share the characteristics of self-renewal capacity and multipotency with stem cells. CSC produces daughter cells with differential nature and thus contributes to tumor. The presence of CSC is associated with tumor initiation and therapy-resistance. The hierarchical and stochastic CSC model can explain the phenotypic and functional heterogeneity in various types of cancer. In this paper, recent excellent observations in CSC, including cell-lineage, regulation of microenvironment and dynamic equilibrium between CSC and non-CSC are reviewed.
出处
《中山大学学报(医学科学版)》
CAS
CSCD
北大核心
2012年第6期701-708,共8页
Journal of Sun Yat-Sen University:Medical Sciences
基金
国家重大科学研究计划项目(2010CB945400)
关键词
肿瘤干细胞
微环境
血管新生
细胞重编程
低氧
cancer stem cell
microenvironment
angiogenesis
reprogramming
hypoxia