Danger signalling during cancer cell death: origins, plasticity and regulation

A D Garg1, S Martin, J Golab

  • 1Cell Death Research and Therapy (CDRT) Unit, Department of Molecular and Cell Biology, University of Leuven (KU Leuven), Leuven, Belgium.

Insights

Cancer treatments can trigger immune responses through immunogenic cell death (ICD), releasing damage-associated molecular patterns (DAMPs). Understanding DAMPs and danger signaling is key to developing effective cancer immunotherapies.

Area of Science:

  • Immunology
  • Oncology
  • Molecular Biology

Background:

  • Anti-cancer treatments can induce cancer cell death perceived as immunogenic or tolerogenic.
  • Immunogenic cell death (ICD) involves damage-associated molecular patterns (DAMPs) that promote anti-tumor immunity.
  • Endoplasmic reticulum (ER) stress is crucial for ICD by coordinating DAMPs trafficking and immune responses.

Purpose of the Study:

  • To review the molecular mechanisms of DAMPs in ICD.
  • To discuss the plasticity of danger signaling pathways.
  • To explore the immunological impact and therapeutic relevance of ICD in human cancers.

Main Methods:

  • Literature review focusing on molecular mechanisms of ICD.
  • Analysis of danger signaling pathways beyond ER stress (e.g., autophagy).
  • Discussion of effector mechanisms at the cancer-immune cell interface.

Main Results:

  • ICD is a critical mechanism for eliciting anti-tumor immunity.
  • ER stress plays a vital role in initiating ICD.
  • Emerging pathways like autophagy also influence danger signaling in ICD.

Conclusions:

  • DAMPs and their signaling pathways are crucial for ICD's therapeutic potential.
  • Understanding the interplay between dying cancer cells and immune cells is essential for cancer therapy.
  • Experimental models and conditions significantly influence observed ICD effects.

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