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Increased ENT2 expression and its association with altered purine metabolism in cell lines derived from different stages of colorectal cancer

  • Authors:
    • Safaa M. Naes
    • Sharaniza Ab-Rahim
    • Musalmah Mazlan
    • Nurul Azmir Amir Hashim
    • Amirah Abdul Rahman
  • View Affiliations / Copyright

    Affiliations: Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Universiti Teknologi MARA, Cawangan Selangor, Kampus Sungai Buloh, Jalan Hospital Sungai Buloh, Selangor 47000, Malaysia, Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Universiti Teknologi MARA, Cawangan Selangor, Kampus Sungai Buloh, Jalan Hospital Sungai Buloh, Selangor 47000, Malaysia
    Copyright: © Naes et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Article Number: 212
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    Published online on: March 24, 2023
       https://doi.org/10.3892/etm.2023.11911
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Abstract

Colorectal cancer (CRC) is one of the most prevalent malignant cancer types worldwide. Although the purine metabolism pathway is vital for cancer cell survival, little is known about the role of equilibrative nucleoside transporter 2 (ENT2) in CRC development and its association with purine metabolites. The aim of the present study was to evaluate the levels of hypoxanthine phosphoribosyl transferase (HPRT), hypoxanthine and uric acid (UA), as well as xanthine oxidase (XO) activity, and investigate their association with ENT2 expression levels in a normal human colon cell line and CRC cell lines derived from different stages of CRC. These analyses were performed using the normal colon CCD‑841CoN cell line and a panel of human CRC cell lines comprising SW480, HCT15 and HCT116, which represent Dukes' B, C and D stages, respectively. Reverse transcription‑quantitative PCR was performed to determine the level of ENT2 mRNA expression. In cells of all CRC stages, the levels of HPRT and hypoxanthine were significantly higher (P<0.05), while XO activity and UA levels were significantly decreased (P<0.05), compared with those in the CCD‑841CoN cell line. ENT2 expression was found to be elevated in cells derived from all stages of CRC. The Dukes' D stage cell line had higher levels of HPRT and hypoxanthine, although its ENT2 level was not significantly lower than that of the Dukes' B and C stage cell lines. Increased levels of HPRT and hypoxanthine in various stages of CRC may indicate an increase in the activity of the salvage pathway. The increased expression of ENT2 implies the importance of the ENT2 protein in facilitating hypoxanthine transport, which is required for enhanced DNA synthesis via hypoxanthine recycling. In conclusion, ENT2 may have potential as a target in the development of CRC therapeutics.
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Copy and paste a formatted citation
Spandidos Publications style
Naes SM, Ab-Rahim S, Mazlan M, Amir Hashim N and Abdul Rahman A: Increased ENT2 expression and its association with altered purine metabolism in cell lines derived from different stages of colorectal cancer. Exp Ther Med 25: 212, 2023.
APA
Naes, S.M., Ab-Rahim, S., Mazlan, M., Amir Hashim, N., & Abdul Rahman, A. (2023). Increased ENT2 expression and its association with altered purine metabolism in cell lines derived from different stages of colorectal cancer. Experimental and Therapeutic Medicine, 25, 212. https://doi.org/10.3892/etm.2023.11911
MLA
Naes, S. M., Ab-Rahim, S., Mazlan, M., Amir Hashim, N., Abdul Rahman, A."Increased ENT2 expression and its association with altered purine metabolism in cell lines derived from different stages of colorectal cancer". Experimental and Therapeutic Medicine 25.5 (2023): 212.
Chicago
Naes, S. M., Ab-Rahim, S., Mazlan, M., Amir Hashim, N., Abdul Rahman, A."Increased ENT2 expression and its association with altered purine metabolism in cell lines derived from different stages of colorectal cancer". Experimental and Therapeutic Medicine 25, no. 5 (2023): 212. https://doi.org/10.3892/etm.2023.11911
Copy and paste a formatted citation
x
Spandidos Publications style
Naes SM, Ab-Rahim S, Mazlan M, Amir Hashim N and Abdul Rahman A: Increased ENT2 expression and its association with altered purine metabolism in cell lines derived from different stages of colorectal cancer. Exp Ther Med 25: 212, 2023.
APA
Naes, S.M., Ab-Rahim, S., Mazlan, M., Amir Hashim, N., & Abdul Rahman, A. (2023). Increased ENT2 expression and its association with altered purine metabolism in cell lines derived from different stages of colorectal cancer. Experimental and Therapeutic Medicine, 25, 212. https://doi.org/10.3892/etm.2023.11911
MLA
Naes, S. M., Ab-Rahim, S., Mazlan, M., Amir Hashim, N., Abdul Rahman, A."Increased ENT2 expression and its association with altered purine metabolism in cell lines derived from different stages of colorectal cancer". Experimental and Therapeutic Medicine 25.5 (2023): 212.
Chicago
Naes, S. M., Ab-Rahim, S., Mazlan, M., Amir Hashim, N., Abdul Rahman, A."Increased ENT2 expression and its association with altered purine metabolism in cell lines derived from different stages of colorectal cancer". Experimental and Therapeutic Medicine 25, no. 5 (2023): 212. https://doi.org/10.3892/etm.2023.11911
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