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Epithelial-mesenchymal transition (EMT) drives cancer aggressiveness and metastasis. Partial EMT, where cells retain some epithelial traits, enhances cancer cell plasticity and migratory abilities, impacting tumor progression and therapy resistance.

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Area of Science:

  • Cell Biology
  • Cancer Biology
  • Developmental Biology

Background:

  • Epithelial-mesenchymal transition (EMT) is a biological process crucial for embryonic development, enabling cell migration.
  • Cancer cells can hijack EMT programs, increasing tumor aggressiveness, metastasis, stem cell properties, and drug resistance.
  • The exact role of EMT in metastasis is not fully understood, with variations across tumor types.

Purpose of the Study:

  • To review the regulatory mechanisms and functional consequences of EMT in cancer.
  • To emphasize the significance of partial EMT in cancer progression and therapeutic resistance.
  • To explore how EMT contributes to cancer cell plasticity and metastasis.

Main Methods:

  • Literature review of existing research on EMT in cancer.
  • Analysis of regulatory pathways governing EMT.
  • Discussion of functional outcomes associated with EMT and partial EMT.

Main Results:

  • EMT reactivation in tumors enhances motility, stemness, and drug resistance, promoting metastasis and recurrence.
  • Partial EMT allows cancer cells to adopt mesenchymal traits while retaining epithelial characteristics, influencing migration and plasticity.
  • Distinct EMT effectors are utilized by different tumor types, highlighting context-specific requirements for metastasis.

Conclusions:

  • EMT is a key driver of cancer aggressiveness and therapeutic challenges.
  • Partial EMT plays a critical role in enhancing cancer cell migration, plasticity, and potentially driving metastasis.
  • Understanding EMT mechanisms, especially partial EMT, is vital for developing effective cancer therapies.