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Updated: Jun 14, 2025

Implementation of In Vitro Drug Resistance Assays: Maximizing the Potential for Uncovering Clinically Relevant Resistance Mechanisms
Published on: December 9, 2015
Current androgen receptor antagonists under investigation for resistant prostate cancer: progress and challenges
Linda Danielli1,2, Elisa Tassinari1,2, Andrea Marchetti1,2
1Medical Oncology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy.
Introduction:
Prostate cancer represents a significant oncological challenge, with its natural history predominantly driven by androgen receptor (AR) signaling. The pivotal role of this pathway underscores the rationale for targeting AR activity in therapeutic strategies. However, the development of resistance mechanisms has highlighted the need for advanced therapies to address the complexity of the castration-resistant status.
Areas Covered:
We analyzed the evolving role of second-generation androgen receptor signaling inhibitors (ARSIs) in the management of non-metastatic and metastatic castration-resistant prostate cancer, we critically examine emerging combination strategies involving ARSIs, novel agents targeting resistance pathways, and the mechanisms underlying treatment resistance. The review also provides insights into future directions for enhancing outcomes. PubMed literature research using keywords related to castration-resistant prostate cancer and its treatments was performed, including the most relevant trials and reviews.
Expert Opinion:
ARSIs have revolutionized the management of prostate cancer, providing substantial clinical benefits and representing the cornerstone of current treatment paradigms. However, key challenges remain, including determining optimal treatment sequencing, overcoming resistance mechanisms, and tailoring therapies to specific molecular subtypes. Biomarker-driven approaches are critical for refining patient selection and improving therapeutic outcomes. Ongoing trials investigating novel hormonal-axis-directed agents and innovative combination therapies aim to expand the arsenal of effective treatment.
Insights
Second-generation androgen receptor signaling inhibitors (ARSIs) are key in treating castration-resistant prostate cancer. Research explores ARSI combinations and resistance mechanisms to improve patient outcomes and overcome treatment challenges.
Area of Science:
- Oncology
- Urology
- Pharmacology
Background:
- Prostate cancer progression is driven by androgen receptor (AR) signaling.
- Treatment resistance necessitates advanced therapies for castration-resistant prostate cancer (CRPC).
Purpose of the Study:
- To analyze the role of second-generation ARSI in CRPC management.
- To examine combination strategies and resistance mechanisms.
- To provide insights into future treatment directions.
Main Methods:
- PubMed literature research on CRPC treatments.
- Analysis of relevant clinical trials and reviews.
Main Results:
- ARSIs have significantly improved CRPC management.
- Challenges include treatment sequencing, resistance, and personalized therapy.
Conclusions:
- Biomarker-driven approaches are crucial for patient selection and outcomes.
- Ongoing trials focus on novel agents and combinations to enhance treatment efficacy.
More Related Videos
07:25A Bioluminescent and Fluorescent Orthotopic Syngeneic Murine Model of Androgen-dependent and Castration-resistant Prostate Cancer
Published on: March 6, 2018
08:36Prostate Organoid Cultures as Tools to Translate Genotypes and Mutational Profiles to Pharmacological Responses
Published on: October 24, 2019
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