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MYC: Master Regulator of Immune Privilege
Stephanie C Casey1, Virginie Baylot1, Dean W Felsher1
1Division of Oncology, Departments of Medicine and Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA.
Trends in Immunology
|February 25, 2017
Summary
Oncogenes drive cancer growth and can suppress the immune system by increasing immune checkpoints like PD-L1. Targeted therapies may help restore anti-tumor immunity.
Area of Science:
- Oncology
- Immunology
- Molecular Biology
Background:
- Cancer initiation involves genetic events activating proto-oncogenes or inactivating tumor-suppressor genes.
- Oncogene addiction is critical for tumor cell proliferation and survival.
- Emerging evidence shows oncogenes directly suppress immune responses, contributing to immunosuppression.
Purpose of the Study:
- To explore how oncogenes, particularly MYC, inhibit immune surveillance.
- To discuss the potential of oncogene-targeted therapies in reversing tumor-induced immunosuppression.
Main Methods:
- Review of current literature on oncogenes and immune regulation.
- Analysis of the role of oncogene expression and tumor suppressor loss in immune checkpoint modulation.
- Examination of MYC's specific mechanisms in immune suppression.
Main Results:
- Oncogene activation or tumor suppressor loss frequently leads to the upregulation of immune checkpoints, such as PD-L1.
- Oncogenes actively regulate the tumor microenvironment to promote immune evasion.
- MYC is identified as a key oncogene involved in suppressing anti-tumor immune responses.
Conclusions:
- Oncogenes play a dual role in cancer: promoting cell proliferation and suppressing anti-tumor immunity.
- Targeting oncogenes offers a potential strategy to re-engage the immune system against cancer.
- Understanding oncogene-mediated immune suppression is crucial for developing effective cancer immunotherapies.
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