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Article

TSC22D2 interacts with PKM2 and inhibits cell growth in colorectal cancer

  • Authors:
    • Fang Liang
    • Qiao Li
    • Xiayu Li
    • Zheng Li
    • Zhaojian Gong
    • Hao Deng
    • Bo Xiang
    • Ming Zhou
    • Xiaoling Li
    • Guiyuan Li
    • Zhaoyang Zeng
    • Wei Xiong
  • View Affiliations / Copyright

    Affiliations: Hunan Key Laboratory of Translational Radiation Oncology, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Cancer Research Institute, Central South University, Changsha, Hunan, P.R. China, Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Disease Genome Research Center, The Third Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China, The Key Laboratory of Carcinogenesis of The Chinese Ministry of Health and The Key Laboratory of Carcinogenesis and Cancer Invasion of The Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, Hunan, P.R. China
  • Pages: 1046-1056
    |
    Published online on: July 4, 2016
       https://doi.org/10.3892/ijo.2016.3599
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Abstract

We previously identified TSC22D2 (transforming growth factor β-stimulated clone 22 domain family, member 2) as a novel cancer-associated gene in a rare multi-cancer family. However, its role in tumor development remains completely unknown. In this study, we found that TSC22D2 was significantly downregulated in colorectal cancer (CRC) and that TSC22D2 overexpression inhibited cell growth. Using a co-immunoprecipitation (co-IP) assay combined with mass spectrometry analysis to identify TSC22D2-interacting proteins, we demonstrated that TSC22D2 interacts with pyruvate kinase isoform M2 (PKM2). These findings were confirmed by the results of immunoprecipitation and immunofluorescence assays. Moreover, overexpression of TSC22D2 reduced the level of nuclear PKM2 and suppressed cyclin D1 expression. Collectively, our study reveals a growth suppressor function of TSC22D2 that is at least partially dependent on the TSC22D2-PKM2-cyclinD1 regulatory axis. In addition, our data provide important clues that might contribute to future studies evaluating the role of TSC22D2.
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Copy and paste a formatted citation
Spandidos Publications style
Liang F, Li Q, Li X, Li Z, Gong Z, Deng H, Xiang B, Zhou M, Li X, Li G, Li G, et al: TSC22D2 interacts with PKM2 and inhibits cell growth in colorectal cancer. Int J Oncol 49: 1046-1056, 2016.
APA
Liang, F., Li, Q., Li, X., Li, Z., Gong, Z., Deng, H. ... Xiong, W. (2016). TSC22D2 interacts with PKM2 and inhibits cell growth in colorectal cancer. International Journal of Oncology, 49, 1046-1056. https://doi.org/10.3892/ijo.2016.3599
MLA
Liang, F., Li, Q., Li, X., Li, Z., Gong, Z., Deng, H., Xiang, B., Zhou, M., Li, X., Li, G., Zeng, Z., Xiong, W."TSC22D2 interacts with PKM2 and inhibits cell growth in colorectal cancer". International Journal of Oncology 49.3 (2016): 1046-1056.
Chicago
Liang, F., Li, Q., Li, X., Li, Z., Gong, Z., Deng, H., Xiang, B., Zhou, M., Li, X., Li, G., Zeng, Z., Xiong, W."TSC22D2 interacts with PKM2 and inhibits cell growth in colorectal cancer". International Journal of Oncology 49, no. 3 (2016): 1046-1056. https://doi.org/10.3892/ijo.2016.3599
Copy and paste a formatted citation
x
Spandidos Publications style
Liang F, Li Q, Li X, Li Z, Gong Z, Deng H, Xiang B, Zhou M, Li X, Li G, Li G, et al: TSC22D2 interacts with PKM2 and inhibits cell growth in colorectal cancer. Int J Oncol 49: 1046-1056, 2016.
APA
Liang, F., Li, Q., Li, X., Li, Z., Gong, Z., Deng, H. ... Xiong, W. (2016). TSC22D2 interacts with PKM2 and inhibits cell growth in colorectal cancer. International Journal of Oncology, 49, 1046-1056. https://doi.org/10.3892/ijo.2016.3599
MLA
Liang, F., Li, Q., Li, X., Li, Z., Gong, Z., Deng, H., Xiang, B., Zhou, M., Li, X., Li, G., Zeng, Z., Xiong, W."TSC22D2 interacts with PKM2 and inhibits cell growth in colorectal cancer". International Journal of Oncology 49.3 (2016): 1046-1056.
Chicago
Liang, F., Li, Q., Li, X., Li, Z., Gong, Z., Deng, H., Xiang, B., Zhou, M., Li, X., Li, G., Zeng, Z., Xiong, W."TSC22D2 interacts with PKM2 and inhibits cell growth in colorectal cancer". International Journal of Oncology 49, no. 3 (2016): 1046-1056. https://doi.org/10.3892/ijo.2016.3599
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