Open Access

Microarray analysis reveals Tmub1 as a cell cycle-associated protein in rat hepatocytes

  • Authors:
    • Hangwei Fu
    • Jianhua Xu
    • Jian Chen
    • Guangyao Li
    • Xiaobiao Zhao
    • Ping Chen
  • View Affiliations

  • Published online on: January 17, 2018     https://doi.org/10.3892/mmr.2018.8451
  • Pages: 4337-4344
  • Copyright: © Fu et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Transmembrane and ubiquitin-like domain containing protein 1 (Tmub1), formerly known as hepatocyte odd protein shuttling (HOPS) has been recognized as a ubiquitously expressed shuttling protein that moves between the nucleus and cytoplasm in hepatocytes. Tmub1 is involved in liver regeneration and functions as a bridging protein in tumor cell proliferation. To investigate the transcriptional profile and potential biological processes affected by Tmub1 expression in normal rat hepatocytes, microarray and bioinformatics experiments were used to identify 127 mRNAs differentially expressed between Tmub1‑overexpression, Tmub1‑knockdown and normal BRL‑3A cells (fold‑change ≥2.5). The expression levels of 17 key node genes associated with the cell cycle were confirmed by reverse transcription-quantitative polymerase chain reaction analysis. Flow cytometry, 5‑Ethynyl‑20‑deoxyuridine, Cell Counting Kit‑8 and western blotting experiments revealed the effects on the cell cycle and the inhibition of proliferation in BRL‑3A cells overexpressing Tmub1. Further co‑immunoprecipitation assays demonstrated that Tmub1 interacts with cyclin A2 during the cell cycle and that the overexpression of Tmub1 may postpone cyclin A2 and cyclin B1 degradation in the M phase. The results of the present study indicated that Tmub1 functions as a cell proliferation inhibitor and cell cycle‑associated protein.
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March-2018
Volume 17 Issue 3

Print ISSN: 1791-2997
Online ISSN:1791-3004

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Spandidos Publications style
Fu H, Xu J, Chen J, Li G, Zhao X and Chen P: Microarray analysis reveals Tmub1 as a cell cycle-associated protein in rat hepatocytes. Mol Med Rep 17: 4337-4344, 2018.
APA
Fu, H., Xu, J., Chen, J., Li, G., Zhao, X., & Chen, P. (2018). Microarray analysis reveals Tmub1 as a cell cycle-associated protein in rat hepatocytes. Molecular Medicine Reports, 17, 4337-4344. https://doi.org/10.3892/mmr.2018.8451
MLA
Fu, H., Xu, J., Chen, J., Li, G., Zhao, X., Chen, P."Microarray analysis reveals Tmub1 as a cell cycle-associated protein in rat hepatocytes". Molecular Medicine Reports 17.3 (2018): 4337-4344.
Chicago
Fu, H., Xu, J., Chen, J., Li, G., Zhao, X., Chen, P."Microarray analysis reveals Tmub1 as a cell cycle-associated protein in rat hepatocytes". Molecular Medicine Reports 17, no. 3 (2018): 4337-4344. https://doi.org/10.3892/mmr.2018.8451