Journal
CANCERS
Volume 15, Issue 10, Pages -Publisher
MDPI
DOI: 10.3390/cancers15102752
Keywords
TRAIL; apoptosis; resistance; immunosurveillance; PD-L1
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Tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) is a promising agent for cancer therapy due to its selective induction of apoptosis in tumor cells without harming normal cells. However, the efficacy of TRAIL-based therapies in clinical trials is limited. In addition to its role in cancer cell apoptosis, TRAIL also plays a critical role in tumor immunosurveillance and may interact with immune checkpoint proteins, such as programmed death-ligand 1 (PD-L1), to modulate PD-L1-based tumor immunotherapies. This review discusses recent findings on TRAIL-based therapy, resistance, and its involvement in tumor immunosurveillance.
Tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) is a member of the TNF superfamily that selectively induces apoptosis in tumor cells without harming normal cells, making it an attractive agent for cancer therapy. TRAIL induces apoptosis by binding to and activating its death receptors DR4 and DR5. Several TRAIL-based treatments have been developed, including recombinant forms of TRAIL and its death receptor agonist antibodies, but the efficacy of TRAIL-based therapies in clinical trials is modest. In addition to inducing cancer cell apoptosis, TRAIL is expressed in immune cells and plays a critical role in tumor surveillance. Emerging evidence indicates that the TRAIL pathway may interact with immune checkpoint proteins, including programmed death-ligand 1 (PD-L1), to modulate PD-L1-based tumor immunotherapies. Therefore, understanding the interaction between TRAIL and the immune checkpoint PD-L1 will lead to the development of new strategies to improve TRAIL- and PD-L1-based therapies. This review discusses recent findings on TRAIL-based therapy, resistance, and its involvement in tumor immunosurveillance.
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