Chemotherapy and radiotherapy: cryptic anticancer vaccines.

Area of Science:

• Immunology
• Oncology
• Cancer Therapy

Background:

• The concept of promoting tumor regression to elicit host immune responses against residual tumor cells is attractive but unproven.
• Chemo- and radiotherapy can potentially stimulate anti-cancer immune responses by inducing immunogenic cell death and releasing danger signals.

Purpose of the Study:

• To discuss the molecular checkpoints governing the success of "immunogenic chemotherapy" based on recent evidence.
• To explore the roles of the drug, tumor cell, and host immune system in mediating anti-cancer immunity.

Main Methods:

• Review of recent experimental and clinical evidence.
• Discussion of molecular mechanisms and checkpoints.

Main Results:

• Chemotherapy and radiotherapy can induce immunogenic cell death, releasing danger-associated molecular patterns (DAMPs).
• These DAMPs stimulate the host immune system to mount anti-cancer immune responses.

Conclusions:

• The success of "immunogenic chemotherapy" depends on multiple checkpoints at the drug, tumor cell, and host immune system levels.
• Further understanding of these checkpoints is crucial for optimizing cancer therapeutic strategies.