Effect of siRNA‑Livin on drug resistance to chemotherapy in glioma U251 cells and CD133+ stem cells

Liu,Yang; Guo,Qiang; Zhang,Hao; Li,Gen‑Hua; Feng,Song; Yu,Xi‑Zhen; Kong,Ling‑Sheng; Zhao,Lei; Jin,Feng

doi:10.3892/etm.2015.2675

October-2015 Volume 10 Issue 4

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October-2015 Volume 10 Issue 4

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Article Open Access

Effect of siRNA‑Livin on drug resistance to chemotherapy in glioma U251 cells and CD133+ stem cells

Authors:
- Yang Liu
- Qiang Guo
- Hao Zhang
- Gen‑Hua Li
- Song Feng
- Xi‑Zhen Yu
- Ling‑Sheng Kong
- Lei Zhao
- Feng Jin
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Affiliations: Graduate School, Tianjin Medical University, Tianjin 300070, P.R. China, Department of Neurosurgery, Neuro‑oncology Laboratory, Affiliated Hospital of Jining Medical College, Jining, Shandong 272029, P.R. China, Department of Hepatology & Infectious Disease, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China

Copyright: © Liu et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
Pages: 1317-1323
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Published online on: August 10, 2015

https://doi.org/10.3892/etm.2015.2675
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Abstract

The aim of the present study was to observe the effect of siRNA‑Livin on the expression of multidrug resistance‑associated protein (MRP) genes in a U251 cell line and U251 stem cells. CD133+ cancer stem cells were identified and isolated from the U251 glioblastoma cells, and morphological observations were used to detect the cell survival conditions. In addition, quantitative polymerase chain reaction was used to detect the mRNA expression levels of Livin, MRP1 and MRP3. Following transfection with the lentivirus containing the siRNA‑Livin, the expression of Livin was significantly inhibited in the U251 cells and stem cells (P<0.01). Following temozolomide intervention, the proliferation of the U251 cells and U251 stem cells was restrained, with a lot of cell debris present and the structure of the cell spheres destroyed. The inhibitory effect was more significant following transfection with siRNA‑Livin. Prior to siRNA‑Livin transfection, the expression of MRP1 presented an increasing trend in the U251 cells and U251 stem cells with increasing drug concentrations and intervention times (P<0.05). Following siRNA‑Livin transfection, the expression of MRP1 decreased in the U251 cells and U251 stem cells under the same drug concentration and intervention time (P<0.05), while the expression of MRP3 increased in the U251 stem cells under the same intervention concentration and time (P<0.05). Therefore, siRNA‑Livin was shown to decrease the expression of MRP1 in U251 cells and U251 stem cells, increase the expression of MRP3 in U251 stem cells and decrease the proliferation of U251 cells and U251 stem cells. Thus, Livin may be associated with the high expression of MRP1, and siRNA‑Livin may be used to lower the expression of MRP1 in order to reduce the drug resistance to chemotherapy in cases of glioblastoma.

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Journals

International Journal of Molecular Medicine

International Journal of Oncology

Molecular Medicine Reports

Oncology Reports

Experimental and Therapeutic Medicine

Oncology Letters

Biomedical Reports

Molecular and Clinical Oncology

World Academy of Sciences Journal

International Journal of Functional Nutrition

International Journal of Epigenetics

Medicine International

Effect of siRNA‑Livin on drug resistance to chemotherapy in glioma U251 cells and CD133+ stem cells

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