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The Impact of Iron Chelators on the Biology of Cancer Stem Cells

Journal

Publisher

MDPI
DOI: 10.3390/ijms23010089

Keywords

cancer stem cells; stemness markers; iron chelators; deferoxamine; deferasirox

Funding

  1. Student Research Group Biology of Cancer Cell at theWroclaw Medical University [K 148]
  2. Statutory Funds of Department of Molecular and Cellular Biology [SUB.D260.21.095]
  3. Ministry of Education and Science [016/RID/2018/19]

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Neoplastic diseases are a major challenge in medicine, and finding new therapeutic options is crucial. The resistance of cancer cells to drugs and disease progression can be attributed to cancer stem cells (CSC) and their specific properties. CSCs inhibit cell maturation, essential for self-renewal and pluripotency, and display increased expression of stemness-related markers. Metabolism changes and increased demand for iron have been observed in cancer cells. Iron chelators have shown anti-tumor activity and can reduce chemoresistance and tumor cell progression by influencing the expression of stemness-related markers.
Neoplastic diseases are still a major medical challenge, requiring a constant search for new therapeutic options. A serious problem of many cancers is resistance to anticancer drugs and disease progression in metastases or local recurrence. These characteristics of cancer cells may be related to the specific properties of cancer stem cells (CSC). CSCs are involved in inhibiting cells' maturation, which is essential for maintaining their self-renewal capacity and pluripotency. They show increased expression of transcription factor proteins, which were defined as stemness-related markers. This group of proteins includes OCT4, SOX2, KLF4, Nanog, and SALL4. It has been noticed that the metabolism of cancer cells is changed, and the demand for iron is significantly increased. Iron chelators have been proven to have antitumor activity and influence the expression of stemness-related markers, thus reducing chemoresistance and the risk of tumor cell progression. This prompts further investigation of these agents as promising anticancer novel drugs. The article presents the characteristics of stemness markers and their influence on the development and course of neoplastic disease. Available iron chelators were also described, and their effects on cancer cells and expression of stemness-related markers were analyzed.

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