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Chronic inflammation, cancer development and immunotherapy.

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Chronic inflammation fuels cancer by creating a tumor microenvironment (TME) that promotes growth and immune evasion. Targeting this suppressive TME is key for effective cancer therapies.

Keywords:
cancer developmentchronic inflammationimmunotherapiesmetastasistherapeutic resistancetumor microenvironment (TME)

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Area of Science:

  • Oncology
  • Immunology
  • Cancer Biology

Background:

  • Chronic inflammation is a key driver of cancer development.
  • The tumor microenvironment (TME) comprises cellular and non-cellular components that foster inflammation.
  • Pro-inflammatory mediators within the TME link inflammation to cancer progression.

Purpose of the Study:

  • To review the role of pro-inflammatory cells and mediators in the TME.
  • To discuss how the TME promotes cancer development and immune escape.
  • To explore therapeutic strategies targeting the TME for cancer management.

Main Methods:

  • Literature review of studies on chronic inflammation, TME, and cancer.
  • Analysis of intercellular communication mediators (e.g., IL-6, MIF) in the TME.
  • Discussion of immune suppressive mechanisms within the TME.

Main Results:

  • Pro-inflammatory cytokines (IL-6, MIF) and immune checkpoints mediate intercellular communication in the TME.
  • Cancer cells hijack regulatory immune cells (Tregs, Bregs) to induce immunosuppression.
  • The immunosuppressive TME limits the efficacy of standard and immune checkpoint therapies.

Conclusions:

  • Targeting the TME is crucial for overcoming drug resistance and enhancing cancer treatment.
  • Disrupting TME-induced immunosuppression and reactivating anti-tumor T cells are promising therapeutic avenues.
  • Future cancer therapies should focus on modulating the TME for improved clinical outcomes.