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The effects on cell growth and chemosensitivity by livin RNAi in non-small cell lung cancer

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Abstract

Livin is highly expressed in most tumor tissues and could inhibit the tumor cells apoptosis. Knockdown of endogenous livin expression in non-small cell lung cancer (NSCLC) cells could inhibit cell growth. But it is still unclear if knockdown of endogenous livin expression combined with conventional chemotherapy could play a positive role in NSCLC treatment. In this article, the efficient RNA interferences (RNAi) of livin were constructed, and then we transfected them into A549 cells and 103H cells to study their influence on cell cycle and apoptosis index. At last, we detected the cell’s sensitivity to conventional chemotherapeutic drugs after knockdown endogenous livin expression in A549 cells and 103H cells. Our results showed that knockdown livin expression could inhibit cell growth and induce apoptosis in A549 cells and 103H cells. A549 cells and 103H cells had an increased chemosensitivity to adriamycin and cisplatin after transfection of livin RNAi constructs. The results indicated that cell cycle redistribution and increased apoptosis index after knockdown livin expression might provide the main explanation for the enhanced chemosensitivity. Proper combination of livin RNAi and some conventional chemotherapeutic drugs may entail potential benefits in the treatment of NSCLC.

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Acknowledgments

This work was supported by a Grant from the National Natural Science Foundation of China (No. 30300326), China Postdoctoral Science Foundation (2005038005), National 863 Program of China (2006AA06Z402).

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Authors and Affiliations

  1. Department of Thoracic Surgery, The Affiliated Hospital of Weifang Medical College, Weifang, China

    Dong Yuan, Liqun Liu & Huaming Xu

  2. Institute of Disease Control and Prevention, Shenzhen Entry-exit Inspection and Quarantine Bureau, Shenzhen, China

    Dayong Gu

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  1. Dong Yuan
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  2. Liqun Liu
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  3. Huaming Xu
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Correspondence to Dong Yuan.

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Yuan, D., Liu, L., Xu, H. et al. The effects on cell growth and chemosensitivity by livin RNAi in non-small cell lung cancer. Mol Cell Biochem 320, 133–140 (2009). https://doi.org/10.1007/s11010-008-9915-1

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  • DOI: https://doi.org/10.1007/s11010-008-9915-1

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