Emerging role of tissue lectins as microenvironmental effectors in tumors and wounds

Karel Smetana1, Pavol Szabo1, Peter Gal2

  • 1Charles University, 1st Faculty of Medicine, Institute of Anatomy, Prague, Czech Republic.

Insights

Comparing tumor progression and wound healing revealed galectins

Area of Science:

  • Biochemistry
  • Cell Biology
  • Oncology
  • Regenerative Medicine

Background:

  • Stromal cells, including cancer-associated fibroblasts and myofibroblasts, significantly influence tumor progression.
  • These same cell types play a beneficial role in wound healing processes.
  • Endogenous lectins, specifically galectins, are implicated in both tumor promotion and wound repair.

Purpose of the Study:

  • To investigate the common effector mechanisms underlying seemingly unrelated biological processes like tumor progression and wound healing.
  • To elucidate the specific role of galectins in mediating these processes.
  • To explore the potential of galectin-related insights for therapeutic strategies and regenerative medicine.

Main Methods:

  • Comparative analysis of distinct biological process cascades (tumor progression vs. wound healing).
  • Focus on the involvement and function of endogenous galectins and their counterreceptors.
  • Investigation of galectin-1's role in fibroblast-to-myofibroblast conversion and extracellular matrix production.

Main Results:

  • Galectins, particularly galectin-1, are identified as key mediators linking stromal cell activity in tumor progression and wound healing.
  • Galectin-1 induces fibroblasts to differentiate into myofibroblasts and produce a complex extracellular matrix.
  • This galectin-induced matrix shows potential utility in keratinocyte culture and wound healing amelioration.

Conclusions:

  • Understanding galectin-mediated lectin-glycan interactions is crucial for deciphering their roles in disease and repair.
  • Insights into these mechanisms may enable rational manipulation of stem/precursor cells for regenerative medicine applications.
  • This research highlights a novel therapeutic avenue targeting galectin pathways for cancer and wound management.

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