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A Robust Discovery Platform for the Identification of Novel Mediators of Melanoma Metastasis
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miRNAs, Melanoma and Microenvironment: An Intricate Network

Gabriele Romano1, Lawrence N Kwong2

  • 1Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. GRomano@mdanderson.org.

International Journal of Molecular Sciences
|November 8, 2017
PubMed

Insights

MicroRNAs (miRNAs) regulate melanoma tumor microenvironment communication, impacting epithelial-mesenchymal transition (EMT), immune responses, and metabolism. Understanding these miRNA roles offers potential diagnostic and therapeutic strategies for melanoma.

Area of Science:

  • Oncology
  • Molecular Biology
  • Cancer Research

Background:

  • MicroRNAs (miRNAs) are key regulators in cancer biology, mediating intercellular communication within the tumor microenvironment.
  • In melanoma, miRNAs influence critical processes including epithelial-mesenchymal transition (EMT), immune system interactions, and metabolic reprogramming.
  • Dysregulation of miRNA networks contributes to melanoma progression and therapeutic resistance.

Purpose of the Study:

  • To review and summarize current findings on miRNA regulation within the melanoma tumor microenvironment.
  • To analyze the multifaceted roles of miRNAs in EMT, immune evasion, and metabolic adaptation in melanoma.
  • To explore the diagnostic and therapeutic potential of miRNAs in melanoma treatment.

Main Methods:

  • Literature review and synthesis of recent research on miRNAs in melanoma.
  • Analysis of miRNA involvement in EMT, immune modulation, and metabolic pathways.
  • Discussion of exosome-mediated miRNA effects and hypoxic responses.

Main Results:

  • miRNAs significantly impact EMT, sometimes through long-range, exosome-dependent mechanisms.
  • miRNAs modulate immune cells, promoting an immune-suppressive tumor microenvironment.
  • miRNAs orchestrate metabolic shifts, particularly the switch to glycolysis under hypoxia.

Conclusions:

  • miRNAs are critical regulators of melanoma tumor microenvironment dynamics.
  • Targeting specific miRNAs holds promise for novel diagnostic markers and therapeutic interventions in melanoma.
  • Further research into miRNA-mediated communication is essential for advancing melanoma treatment strategies.
Keywords:
epithelial to mesenchymal transition (EMT)hypoxiaimmune systemmelanomametabolismmiRNAtumor microenvironment

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