Long Non-Coding RNAs as Epigenetic Regulators of Immune Checkpoints in Cancer Immunity

Area of Science:

• Oncology
• Molecular Biology
• Immunology

Background:

• Cancer treatment is shifting towards immune checkpoint inhibitors, but response rates are modest.
• Tumor microenvironment and heterogeneity are critical factors in immunotherapy effectiveness.
• Long non-coding RNAs (lncRNAs) are emerging as key regulators of biological processes, including immune responses.

Purpose of the Study:

• To review the role of lncRNAs in regulating immune checkpoints in human cancer.
• To explore the functions of super-enhancer lncRNAs (selncRNAs) and circular RNAs (circRNAs) in modulating immune checkpoint molecules.
• To discuss novel mechanisms involving lncRNAs, miRNAs, and circRNAs in overcoming tumor immune evasion.

Main Methods:

• Literature review of lncRNAs, selncRNAs, and circRNAs in cancer immunology.
• Analysis of molecular pathways targeted by lncRNAs in immune checkpoint regulation.
• Synthesis of current knowledge on non-coding RNAs and their impact on the tumor immune microenvironment.

Main Results:

• lncRNAs play a significant regulatory role in immune checkpoints, presenting potential therapeutic targets.
• selncRNAs and circRNAs are identified as modulators of immune checkpoint molecules in human cancers.
• Interactions between lncRNAs, miRNAs, and circRNAs can reshape the tumor immune microenvironment, aiding in the avoidance of tumor evasion.

Conclusions:

• lncRNAs, selncRNAs, and circRNAs are crucial in regulating immune checkpoints and hold promise for enhancing cancer immunotherapy.
• Targeting these non-coding RNAs could lead to improved therapeutic strategies and overcome resistance mechanisms in cancer treatment.
• Further research into these molecules is essential for developing novel immunotherapeutic approaches against various malignancies.