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Alteration in the expression of the chemotherapy resistance‑related genes in response to chronic and acute hypoxia in pancreatic cancer

  • Authors:
    • Malek Zihlif
    • Tareq Hameduh
    • Nailya Bulatova
    • Hana Hammad
  • View Affiliations / Copyright

    Affiliations: Department of Pharmacology, School of Medicine, The University of Jordan, Amman 11942, Jordan, Department of Biopharmaceutics and Clinical Pharmacy, School of Pharmacy, The University of Jordan, Amman 11942, Jordan, Department of Biology, School of Science, The University of Jordan, Amman 11942, Jordan
    Copyright: © Zihlif et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Article Number: 88
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    Published online on: October 4, 2023
       https://doi.org/10.3892/br.2023.1670
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Abstract

Pancreatic cancer is currently one of the least curable types of human cancer and remains a key health problem. One of the most important characteristics of pancreatic cancer is its ability to grow under hypoxic conditions. Hypoxia is associated with resistance of cancer cells to radiotherapy and chemotherapy. It is a major contributor to pancreatic cancer genetic instability, which local and systemic resistance that may result in poor clinical outcome. Accordingly, identifying gene expression changes in cancer resistance genes that occur under hypoxic conditions may identify a new therapeutic target. The aim of the present study was to explore the association between hypoxia and resistance to chemotherapy and determine the alteration in the expression of cancer resistance‑related genes in the presence of hypoxia. Pancreatic cancer cells (PANC‑1) were exposed to 8 h hypoxic episodes (<1% oxygen) three times/week for a total of 20 episodes (chronic hypoxia) or 72 h hypoxic episodes twice/week for a total of 10 episodes (acute hypoxia). The alterations in gene expression were examined using reverse transcription‑quantitative PCR array compared with normoxic cells. Chemoresistance of hypoxic cells toward doxorubicin was assessed using MTT cell proliferation assay. Both chronic and acute hypoxia induced chemoresistance toward doxorubicin in PANC‑1 pancreatic cancer cell line. The greatest changes occurred in estrogen Receptor Alpha Gene (ESR1) and ETS Like‑1 protein (ELK1) pathways­, in nucleic transcription factor Peroxisome proliferator‑activated receptors (PPARs) and in a cell cycle inhibitor cyclin dependent kinase inhibitor 1A (CDKN1A). The present study demonstrated that exposing cells to prolonged hypoxia results in different gene expression changes involving pleotropic pathways that serve a role in inducing resistance in pancreatic cancer.
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Copy and paste a formatted citation
Spandidos Publications style
Zihlif M, Hameduh T, Bulatova N and Hammad H: Alteration in the expression of the chemotherapy resistance‑related genes in response to chronic and acute hypoxia in pancreatic cancer. Biomed Rep 19: 88, 2023.
APA
Zihlif, M., Hameduh, T., Bulatova, N., & Hammad, H. (2023). Alteration in the expression of the chemotherapy resistance‑related genes in response to chronic and acute hypoxia in pancreatic cancer. Biomedical Reports, 19, 88. https://doi.org/10.3892/br.2023.1670
MLA
Zihlif, M., Hameduh, T., Bulatova, N., Hammad, H."Alteration in the expression of the chemotherapy resistance‑related genes in response to chronic and acute hypoxia in pancreatic cancer". Biomedical Reports 19.6 (2023): 88.
Chicago
Zihlif, M., Hameduh, T., Bulatova, N., Hammad, H."Alteration in the expression of the chemotherapy resistance‑related genes in response to chronic and acute hypoxia in pancreatic cancer". Biomedical Reports 19, no. 6 (2023): 88. https://doi.org/10.3892/br.2023.1670
Copy and paste a formatted citation
x
Spandidos Publications style
Zihlif M, Hameduh T, Bulatova N and Hammad H: Alteration in the expression of the chemotherapy resistance‑related genes in response to chronic and acute hypoxia in pancreatic cancer. Biomed Rep 19: 88, 2023.
APA
Zihlif, M., Hameduh, T., Bulatova, N., & Hammad, H. (2023). Alteration in the expression of the chemotherapy resistance‑related genes in response to chronic and acute hypoxia in pancreatic cancer. Biomedical Reports, 19, 88. https://doi.org/10.3892/br.2023.1670
MLA
Zihlif, M., Hameduh, T., Bulatova, N., Hammad, H."Alteration in the expression of the chemotherapy resistance‑related genes in response to chronic and acute hypoxia in pancreatic cancer". Biomedical Reports 19.6 (2023): 88.
Chicago
Zihlif, M., Hameduh, T., Bulatova, N., Hammad, H."Alteration in the expression of the chemotherapy resistance‑related genes in response to chronic and acute hypoxia in pancreatic cancer". Biomedical Reports 19, no. 6 (2023): 88. https://doi.org/10.3892/br.2023.1670
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