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发表于 2010-11-17 03:12:05
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来自: 美国
原文题目,作者和简介如下. 有几点要注意,
1. 此药主要针对干细胞. 具体疗效如何不知道.
2. 我没找到此药和肺癌相关的文献.
3. 原文是用乳癌细胞找到这个药的.
4. Bob Weinberg 和 Eric Landers都是顶级大牌教授.东西还是比较可信的.
5.后续研究有用此药和其他化疗药物联合应用.
Identification of Selective Inhibitors of Cancer Stem Cells by High-Throughput Screening
Piyush B. Gupta1, 3, 7, , , Tamer T. Onder1, 2, 7, Guozhi Jiang1, 3, Kai Tao4, Charlotte Kuperwasser4, Robert A. Weinberg1, 2, 6, 8, , and Eric S. Lander1, 2, 3, 5, 8, ,
1Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
2Whitehead Institute for Biomedical Research, 9 Cambridge Center, Cambridge, MA 02142, USA
3Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
4Department of Anatomy and Cell Biology, Tufts University School of Medicine and Molecular Oncology Research Institute, Tufts Medical Center, Boston, MA 02111, USA
5Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA
6MIT Ludwig Center for Molecular Oncology, Cambridge, MA 02139
Received 21 October 2008; revised 18 February 2009; accepted 12 June 2009. Published online: August 13, 2009. Available online 13 August 2009.
Referred to by: Breast Cancer Stem Cells: Eradication by Differentiation Therapy?
Cell, Volume 138, Issue 4, 21 August 2009, Pages 623-625,
Hartmut Beug
PDF (361 K) |
Summary
Screens for agents that specifically kill epithelial cancer stem cells (CSCs) have not been possible due to the rarity of these cells within tumor cell populations and their relative instability in culture. We describe here an approach to screening for agents with epithelial CSC-specific toxicity. We implemented this method in a chemical screen and discovered compounds showing selective toxicity for breast CSCs. One compound, salinomycin, reduces the proportion of CSCs by >100-fold relative to paclitaxel, a commonly used breast cancer chemotherapeutic drug. Treatment of mice with salinomycin inhibits mammary tumor growth in vivo and induces increased epithelial differentiation of tumor cells. In addition, global gene expression analyses show that salinomycin treatment results in the loss of expression of breast CSC genes previously identified by analyses of breast tissues isolated directly from patients. This study demonstrates the ability to identify agents with specific toxicity for epithelial CSCs. |
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