Multi-Drug–Resistant Cells Enriched From Chronic Myeloid Leukemia Cells by Doxorubicin Possess Tumor-Initiating–Cell Properties
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- Xin Hong
- Department of Pharmacology, School of Pharmacy, Fudan University, China
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- Kong Ying
- Department of Pharmacology, School of Pharmacy, Fudan University, China
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- Jiang Xiaoxiao
- Department of Pharmacology, Shandong University at Weihai, China
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- Wang Ke
- Department of Pharmacology, Shanghai ChemPartner Co., Ltd., China
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- Qin Xiaoran
- Department of Pharmacology, Shanghai ChemPartner Co., Ltd., China
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- Miao Ze-Hong
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, China
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- Zhu Yizhun
- Department of Pharmacology, School of Pharmacy, Fudan University, China
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- Tan Wenfu
- Department of Pharmacology, School of Pharmacy, Fudan University, China State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, China
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抄録
Multiple drug resistance (MDR) occurring during chemotherapy is a major obstacle for treatment of cancers using chemotherapeutic drugs; thus, the mechanisms underlying MDR have attracted intensive attention. Many studies have shown that tumor-initiating cells exhibit a chemotherapeutic tolerance characteristic. However, whether the MDR cells possess tumor-initiating cells properties and its underlying mechanisms remain to be fully elucidated. In this study, we utilized a well-established MDR cell line K562/A02 enriched by doxorubicin from K562 cells to determine if the K562/A02 cells possess tumor-initiating properties and investigated its potential molecular mechanisms. We observed that the expressions of Oct4, Sox2, and Nanog, all of which are well-characterized stem cell markers, in K562/A02 cells were elevated in comparison to parental K562 cells; in addition, we found that K562/A02 cells exhibited more potent in vitro and in vivo tumor-initiating properties, as revealed by sphere assay, self-renewal assay, soft agar assay, and animal studies. Furthermore, our data suggest that snail and twist1, two well known transcriptional factors for the epithelial-mesenchymal transition (EMT) program, may be potentially involved in the acquisition of tumor-initiating properties of K562/A02 cells. Thus, our study demonstrates that MDR K562/A02 cells possess tumor-initiating properties, most likely due to the elevated expressions of snail and twist1.
収録刊行物
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- Journal of Pharmacological Sciences
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Journal of Pharmacological Sciences 122 (4), 299-304, 2013
公益社団法人 日本薬理学会
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詳細情報 詳細情報について
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- CRID
- 1390001205180685696
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- NII論文ID
- 10031196203
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- NII書誌ID
- AA11806667
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- COI
- 1:CAS:528:DC%2BC3sXhsVaiu7%2FL
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- ISSN
- 13478648
- 13478613
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- NDL書誌ID
- 024779313
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- PubMed
- 23903006
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- PubMed
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