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Area of Science:

  • Cancer biology
  • Mechanobiology
  • Cellular dynamics

Background:

  • Cancer metastasis is complex, with biochemical signals well-studied but mechanobiological factors emerging.
  • Epithelial-mesenchymal transition (EMT) is a key, but not the only, driver of cancer cell invasiveness.
  • The "jamming-to-unjamming" transition offers a new mechanobiological perspective on cancer cell invasion.

Purpose of the Study:

  • To review breakthroughs in the jamming-to-unjamming transition in cancer metastasis.
  • To compare jamming-to-unjamming with epithelial-mesenchymal transition (EMT).
  • To discuss the impact of the tumor microenvironment (TME) on these transitions.

Main Methods:

  • Literature review focusing on mechanobiology and extracellular matrix interactions.
  • Comparative analysis of jamming-to-unjamming and EMT.
  • Discussion of TME components like ECM and cancer-associated fibroblasts (CAFs).

Main Results:

  • Jamming-to-unjamming is a distinct mechanobiological process influencing 3D cancer cell migration.
  • While superficially similar to EMT, jamming-to-unjamming involves unique molecular and physical factors.
  • The TME, including ECM stiffness and CAFs, significantly impacts the jamming-to-unjamming transition.

Conclusions:

  • The jamming-to-unjamming transition is a critical, mechanobiology-driven process in cancer metastasis.
  • Understanding its distinctions and potential synergy with EMT is crucial for novel therapeutic strategies.
  • Future research should focus on mechanobiological aspects within the TME to advance cancer treatment.