肺癌干细胞标志物的研究现状

Research Status of Lung Cancer Stem Cell Markers

肺癌具有高度异质性,能够抵抗化疗药物治疗,5年生存率小于15%。尽管我们关于肺癌的知识在不断增多,但仍很难确定肺癌的异质性和耐药性的发病基础。肿瘤干细胞模型近年来吸引了很多注意力,通过这种模型可以解释各种肿瘤的异质性、耐药性、休眠、复发和转移。肿瘤干细胞理论较少涉及肺癌研究。本文综述了肺癌干细胞的鉴定方法,包括其细胞表面标志物和生物学特征,还讨论了肺癌干细胞与肺癌预后的关系,从而为消灭肺癌干细胞、攻克肺癌提供理论依据。

Lung cancers are highly heterogeneous and resistant to available therapeutic agents, with a five-year survival rate of less than 15%. Despite significant advances in our knowledge of the genetic alterations and aberrations in lung cancer, it has been difficult to determine the basis of lung cancer＇s heterogeneity and drug resistance. Cancer stem cell model has attracted a significant amount of attention in recent years as a viable explanation for the heterogeneity, drug resistance, dormancy, recurrence and metastasis of various tumors. At the same time, cancer stem cells have been relatively less characterized in lung cancers. This review summarizes the current understanding of lung cancer stem cells, including their molecular features and signaling pathways that drive their stemness. This review also discusses the prognosis of lung cancer and its relationship with lung cancer stem cell, in an effort to eradicate these cells to combat lung cancer.