The roots of cancer: stem cells and the basis for tumor heterogeneity.

The roots of cancer: stem cells and the basis for tumor heterogeneity.
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DOI:
10.1002/bies.201200101
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发表时间:
2013-03
期刊:
影响因子:
4
通讯作者:
Shen, Michael M.
Shen, Michael M.
中科院分区:
生物学3区
文献类型:
--
作者:
Shibata, Maho;Shen, Michael M.

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最近对前列腺癌和其他肿瘤类型的研究揭示了将正常干细胞生物学概念应用于癌症的重要支持和意想不到的复杂性。特别是,已经提出了起源细胞和癌症干细胞模型来解释肿瘤在发生、繁殖和进化过程中的异质性。因此,研究干细胞和/或非干细胞是否可以作为癌症的起源细胞,并导致疾病结局不同的肿瘤亚型,由此得出了肿瘤间异质性的基础。此外,对假定的癌症干细胞的分析揭示了癌症的遗传多样性,并扩大了我们对肿瘤内异质性和克隆进化的理解。总的来说,从这些干细胞研究中出现的原则强调了开发有效的癌症治疗策略需要克服的挑战。
Recent studies of prostate cancer and other tumor types have revealed significant support as well as unexpected complexities for the application of concepts from normal stem cell biology to cancer. In particular, the cell of origin and cancer stem cell models have been proposed to explain the heterogeneity of tumors during the initiation, propagation, and evolution of cancer. Thus, the basis of intertumor heterogeneity has emerged from studies investigating whether stem cells and/or non-stem cells can serve as cells of origin for cancer and give rise to tumor subtypes that vary in disease outcome. Furthermore, analyses of putative cancer stem cells have revealed the genetically diverse nature of cancers and expanded our understanding of intratumor heterogeneity and clonal evolution. Overall, the principles that have emerged from these stem cell studies highlight the challenges to be surmounted to develop effective treatment strategies for cancer.
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