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Article Open Access

Functional characterization of the nitrogen permease regulator‑like‑2 candidate tumor suppressor gene in colorectal cancer cell lines

Retraction in: /10.3892/mmr.2023.13088
  • Authors:
    • Ai‑Yun Liu
    • Ming‑Na Liu
    • Feng‑Hua Pei
    • Jing Chen
    • Xin‑Hong Wang
    • Dan Liu
    • Ya‑Ju Du
    • Bing‑Rong Liu
  • View Affiliations / Copyright

    Affiliations: Department of Gastroenterology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
    Copyright: © Liu et al. This is an open access article distributed under the terms of Creative Commons Attribution License [CC BY_NC 3.0].
  • Pages: 3487-3493
    |
    Published online on: June 3, 2015
       https://doi.org/10.3892/mmr.2015.3881
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Abstract

The nitrogen permease regulator‑like‑2 (NPRL2) gene is a candidate tumor suppressor gene, which has been identified in the 3p21.3 human chromosome region. Decreased expression levels of NPRL2 have been observed in colorectal cancer (CRC) tissues, however, the function of NPRL2 in CRC progression remains to be fully elucidated. The present study investigated the biological characteristics of the HCT116 and HT29 CRC cell lines overexpressing exogenous NPRL2. NPRL2 recombinant lentiviral vectors were also constructed and transfected in the present study. Cell growth was determined using a Cell Counting Kit‑8 assay and a colony formation assay. The cell cycle and rate of apoptosis were assessed using flow cytometric analysis. Transwell assays were used to evaluate cell invasion. The protein expression of phosphorylated (p)‑AKT and caspase 3, B‑cell lymphoma 2 (Bcl2) and Bcl‑2‑associated X protein apoptosis‑associated genes, were detected using western blotting. The results revealed that NPRL2 overexpression inhibited cell growth, induced cell cycle G1 phase arrest, promoted apoptosis and inhibited invasion in the two human CRC cell lines. Furthermore, the protein expression levels of p‑AKT and Bcl2 were significantly reduced in the NPRL2‑transfected HCT116 and HT29 cells, compared with the mock‑transfected group and control group, while the protein expression of caspase‑3 was increased. Therefore, NPRL2 acted as a functional tumor suppressor in the CRC cell lines.
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Copy and paste a formatted citation
Spandidos Publications style
Liu AY, Liu MN, Pei FH, Chen J, Wang XH, Liu D, Du YJ and Liu BR: Functional characterization of the nitrogen permease regulator‑like‑2 candidate tumor suppressor gene in colorectal cancer cell lines Retraction in /10.3892/mmr.2023.13088. Mol Med Rep 12: 3487-3493, 2015.
APA
Liu, A., Liu, M., Pei, F., Chen, J., Wang, X., Liu, D. ... Liu, B. (2015). Functional characterization of the nitrogen permease regulator‑like‑2 candidate tumor suppressor gene in colorectal cancer cell lines Retraction in /10.3892/mmr.2023.13088. Molecular Medicine Reports, 12, 3487-3493. https://doi.org/10.3892/mmr.2015.3881
MLA
Liu, A., Liu, M., Pei, F., Chen, J., Wang, X., Liu, D., Du, Y., Liu, B."Functional characterization of the nitrogen permease regulator‑like‑2 candidate tumor suppressor gene in colorectal cancer cell lines Retraction in /10.3892/mmr.2023.13088". Molecular Medicine Reports 12.3 (2015): 3487-3493.
Chicago
Liu, A., Liu, M., Pei, F., Chen, J., Wang, X., Liu, D., Du, Y., Liu, B."Functional characterization of the nitrogen permease regulator‑like‑2 candidate tumor suppressor gene in colorectal cancer cell lines Retraction in /10.3892/mmr.2023.13088". Molecular Medicine Reports 12, no. 3 (2015): 3487-3493. https://doi.org/10.3892/mmr.2015.3881
Copy and paste a formatted citation
x
Spandidos Publications style
Liu AY, Liu MN, Pei FH, Chen J, Wang XH, Liu D, Du YJ and Liu BR: Functional characterization of the nitrogen permease regulator‑like‑2 candidate tumor suppressor gene in colorectal cancer cell lines Retraction in /10.3892/mmr.2023.13088. Mol Med Rep 12: 3487-3493, 2015.
APA
Liu, A., Liu, M., Pei, F., Chen, J., Wang, X., Liu, D. ... Liu, B. (2015). Functional characterization of the nitrogen permease regulator‑like‑2 candidate tumor suppressor gene in colorectal cancer cell lines Retraction in /10.3892/mmr.2023.13088. Molecular Medicine Reports, 12, 3487-3493. https://doi.org/10.3892/mmr.2015.3881
MLA
Liu, A., Liu, M., Pei, F., Chen, J., Wang, X., Liu, D., Du, Y., Liu, B."Functional characterization of the nitrogen permease regulator‑like‑2 candidate tumor suppressor gene in colorectal cancer cell lines Retraction in /10.3892/mmr.2023.13088". Molecular Medicine Reports 12.3 (2015): 3487-3493.
Chicago
Liu, A., Liu, M., Pei, F., Chen, J., Wang, X., Liu, D., Du, Y., Liu, B."Functional characterization of the nitrogen permease regulator‑like‑2 candidate tumor suppressor gene in colorectal cancer cell lines Retraction in /10.3892/mmr.2023.13088". Molecular Medicine Reports 12, no. 3 (2015): 3487-3493. https://doi.org/10.3892/mmr.2015.3881
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