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Author Spotlight: Transmitochondrial Cybrid Generation Using Cancer Cell Lines
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An insight into the associations between microRNA expression and mitochondrial functions in cancer cell and cancer

Wee Lin Tan1, Sethu Thakachy Subha2, Norhafizah Mohtarrudin3

  • 1Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.

Molecular Biology Reports
|April 19, 2023
PubMed

Insights

Targeting microRNAs that disrupt mitochondria in cancer stem cells (CSCs) can restore mitochondrial function, trigger apoptosis, and potentially eliminate these resilient cells, offering a new avenue for cancer therapy.

Area of Science:

  • Molecular Biology
  • Cancer Research
  • Mitochondrial Biology

Background:

  • Cancer stem cells (CSCs) possess self-renewal capabilities, contributing to chemoresistance and tumor recurrence, challenging current cancer therapies.
  • Cancer cell metabolism shifts from oxidative phosphorylation to glycolysis, supporting continuous energy supply and survival.
  • Mitochondrial calcium ion (Ca2+) uptake is crucial for regulating mitochondrial physiology; reduced uptake promotes cancer cell survival by inhibiting apoptosis.

Purpose of the Study:

  • To explore the intricate links between microRNAs (miRNAs) and mitochondrial functions in both cancer cells and CSCs.
  • To elucidate how these interactions promote cancer cell survival and self-renewal.
  • To identify potential therapeutic strategies targeting miRNA-mediated mitochondrial dysregulation in cancer.

Main Methods:

  • Review of existing literature on cancer metabolomics, mitochondrial gene regulation, and miRNA involvement in cancer.
  • Analysis of mechanisms by which miRNAs influence mitochondrial activity and metabolic reprogramming in cancer cells and CSCs.
  • Investigation of how targeting specific miRNAs can restore mitochondrial function and induce apoptosis in CSCs.

Main Results:

  • Mitochondria-associated miRNAs are identified as key regulators of metabolic alterations that enhance cancer cell survival.
  • In CSCs, specific miRNAs promote survival by inducing mitochondrial damage and altering cellular metabolism.
  • Restoring mitochondrial function by targeting these miRNAs can trigger apoptosis and potentially eradicate CSCs.

Conclusions:

  • miRNAs play a significant role in modulating mitochondrial activities to support cancer cell survival and self-renewal.
  • Targeting miRNAs involved in mitochondrial destruction presents a promising strategy for developing novel anticancer therapies.
  • Further research into miRNA-mitochondria interactions can lead to breakthroughs in eliminating chemoresistant cancer stem cells.
Keywords:
Cancer metabolomicsCancer stem cellsMitochondriaTherapeutic targetsmicroRNAs

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