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Tumor stiffness from abnormal extracellular matrix (ECM) promotes cancer growth and hinders treatment. Targeting ECM mechanics and metabolism may improve cancer diagnostics and therapies.

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Area of Science:

  • Oncology
  • Biomedical Engineering
  • Cancer Biology

Background:

  • Desmoplasia, characterized by abnormal extracellular matrix (ECM) deposition, creates a stiff tumor stroma.
  • This stiff stroma compromises vascular integrity, leading to hypoxia and impaired drug delivery.
  • Increased ECM stiffness activates signaling pathways that promote tumor growth, invasion, and survival.

Purpose of the Study:

  • To discuss the interplay between ECM mechanics and cellular metabolism in tumor biology.
  • To highlight how these factors cooperatively drive cancer aggression and treatment resistance.
  • To suggest potential diagnostic and therapeutic strategies targeting ECM stiffening and mechanosignaling.

Main Methods:

  • Review of existing literature on ECM mechanics, tumor stroma, and cancer metabolism.
  • Analysis of the crosstalk between mechanical signaling and metabolic reprogramming in cancer cells.
  • Discussion of emerging evidence linking ECM stiffness, metabolism, and cancer progression.

Main Results:

  • Tumor desmoplasia and ECM stiffening are linked to increased cancer aggressiveness and poor treatment outcomes.
  • Mechanically activated pathways by ECM stiffness also promote altered glucose metabolism (aerobic glycolysis).
  • Metabolic alterations and abnormal ECM cooperatively enhance cancer cell aggression and treatment resistance.

Conclusions:

  • Monitoring tissue mechanics and metabolism can improve cancer diagnostics.
  • Targeting ECM stiffening and elevated mechanosignaling pathways offers therapeutic potential.
  • Intervening in the interplay between ECM mechanics and metabolism may improve patient outcomes and prevent malignant transformation.