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Mast cells (MCs) within the tumor microenvironment (TME) have complex roles, either promoting or inhibiting cancer growth. Understanding MCs offers new therapeutic strategies for cancer treatment.

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Area of Science:

  • Oncology
  • Immunology
  • Cell Biology

Background:

  • The tumor microenvironment (TME) is a complex ecosystem influencing tumor progression.
  • Mast cells (MCs) are key immune cells within the TME, with debated roles.
  • MCs exhibit dual regulatory functions, promoting or inhibiting tumor growth depending on context.

Purpose of the Study:

  • To systematically review the current understanding of mast cells in the tumor microenvironment.
  • To emphasize MC characteristics and functional differences across tumor types, pathological status, and species.
  • To explore MCs as an emerging therapeutic target in cancer treatment.

Main Methods:

  • Comprehensive literature review of mast cell research in the TME.
  • Analysis of MC markers, activation mechanisms, and biological functions.
  • Examination of cellular interactions and therapeutic regulation of MCs.

Main Results:

  • Mast cells display context-dependent roles in tumor progression (pro- or anti-tumor).
  • Significant variations exist in MC behavior across different cancer types and species.
  • Advances in understanding MCs pave the way for targeted therapeutic strategies.

Conclusions:

  • Mast cells are critical, multifaceted components of the TME.
  • Targeting specific mast cell subsets presents a promising avenue for cancer therapy.
  • Further research into MCs will inform future directions in tumor immunology and treatment.