Reshaping the Immune Tumor Microenvironment Through IRE1 Signaling

Area of Science:

• Molecular Biology
• Cancer Research
• Immunology

Background:

• Tumor cells must adapt to stress for survival and proliferation.
• The endoplasmic reticulum (ER) and its unfolded protein response (UPR) are key adaptive pathways.
• The UPR influences the tumor microenvironment (TME) and immune responses.

Purpose of the Study:

• To investigate the role of the UPR in controlling the TME and immune response.
• To explore novel therapeutic strategies targeting the UPR in cancer.

Main Methods:

• Focus on inositol-requiring enzyme 1α (IRE1), a key UPR mediator.
• Compilation of molecular mechanisms linking tumoral UPR to TME and immune control.

Main Results:

• Tumoral UPR activation is crucial for tumor cell adaptation and survival.
• The UPR modulates the TME, influencing immune cell infiltration and function.
• IRE1-mediated signaling plays a significant role in these processes.

Conclusions:

• The UPR, particularly IRE1 signaling, is a critical regulator of the TME and anti-tumor immunity.
• Targeting tumoral UPR pathways presents a promising therapeutic avenue for cancer treatment.