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Updated: Jun 1, 2026

A Murine Orthotopic Bladder Tumor Model and Tumor Detection System
Published on: January 12, 2017
TRAIL-mediated signaling in prostate, bladder and renal cancer
1Department of Microbiology & Immunology, Medical University of South Carolina, 173 Ashley Avenue, Charleston, SC 29425, USA. johnsocv@musc.edu
Abstract:
Tumor necrosis factor related apoptosis inducing ligand (TRAIL) is a death receptor ligand that has the ability to preferentially initiate apoptosis in malignant cells with minimal toxicity to normal cells. TRAIL-based therapeutics, including recombinant TRAIL, TRAIL-receptor agonistic antibodies and TRAIL gene therapy, have now entered clinical trials. Although these therapeutics are promising, concerns regarding TRAIL resistance are causing research efforts to shift towards the identification of effective combination therapies. Small-molecule inhibitors, natural compounds, and drugs approved for treatment of diseases other than cancer have been shown to affect TRAIL receptors, antiapoptotic proteins and survival pathways in prostate, bladder and renal cell lines and in preclinical models. Changes in endogenous TRAIL and TRAIL receptor expression during the development of genitourinary malignancies and the way in which the expression pattern is affected by treatment are of great interest, and understanding the biological consequences of such changes will be important to maximize the potential of TRAIL-based therapeutics.
Insights
Tumor necrosis factor related apoptosis inducing ligand (TRAIL) shows promise for cancer therapy by inducing apoptosis in malignant cells. Research now focuses on combination therapies to overcome TRAIL resistance in genitourinary cancers.
Area of Science:
- Oncology
- Molecular Biology
- Drug Discovery
Background:
- Tumor necrosis factor related apoptosis inducing ligand (TRAIL) is a death receptor ligand that selectively induces apoptosis in cancer cells.
- TRAIL-based therapeutics are advancing through clinical trials for various cancers.
- TRAIL resistance is a significant challenge, necessitating the development of combination therapies.
Purpose of the Study:
- To explore combination therapies for overcoming TRAIL resistance in genitourinary malignancies.
- To investigate the role of endogenous TRAIL and TRAIL receptor expression in cancer development and treatment response.
- To understand the biological consequences of altered TRAIL pathway expression.
Main Methods:
- Review of existing research on TRAIL therapeutics and resistance mechanisms.
- Analysis of studies involving small-molecule inhibitors, natural compounds, and repurposed drugs affecting TRAIL pathways.
- Examination of changes in TRAIL and TRAIL receptor expression in genitourinary cancer models and during treatment.
Main Results:
- Various agents, including small-molecule inhibitors and natural compounds, can modulate TRAIL receptors and survival pathways.
- Expression patterns of TRAIL and its receptors change during genitourinary cancer development and in response to treatment.
- Understanding these expression dynamics is crucial for therapeutic efficacy.
Conclusions:
- Combination therapies are essential to overcome TRAIL resistance in cancer treatment.
- Modulating TRAIL pathway components offers a viable strategy for enhancing anti-cancer effects.
- Further research into TRAIL and TRAIL receptor expression is critical for optimizing TRAIL-based cancer therapies.
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