Androgen Receptor Condensate Modulators for Prostate Cancer Resistance
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Solution Overview
Problem
Current AR inhibitors for treating prostate cancer often become ineffective due to resistance, particularly those targeting the ligand binding domain, necessitating the development of new mechanisms to modulate androgen receptor (AR) activity.
Innovation Solution
The use of AR condensate modulators that target the intrinsic disorder domain of AR, affecting the formation, stability, and activity of AR condensates, which include transcriptional condensates comprising AR, DNA/RNA sequences, histones, cofactors, and RNA polymerase, to decrease AR condensate levels and inhibit cancer cell proliferation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If AR inhibitors targeting the ligand binding domain are used, then AR activity is initially inhibited, but resistance develops rendering the inhibitors ineffective
Solution Approach 1:
The invention extracts the modulator from the ligand binding domain and places it in the N-terminal domain of AR. This extraction approach targets a different functional region of the protein, avoiding the resistance mechanisms that have developed against ligand binding domain inhibitors while still achieving AR activity modulation.
Solution Approach 2:
The N-terminal domain modulator acts as an intermediary that indirectly affects AR activity by modulating condensate formation rather than directly blocking the ligand binding domain. This intermediary mechanism provides an alternative pathway for AR inhibition that bypasses resistance to conventional inhibitors.
2Adaptability or versatility
If new mechanism AR modulators are developed, then resistance is overcome, but mechanism complexity increases
Solution Approach 1:
The invention changes the parameter of modulator location from the ligand binding domain to the N-terminal domain. This parameter change creates a new mechanism of action that overcomes resistance while maintaining relative simplicity, as it still involves small molecule binding but to a different domain with different structural and functional characteristics.
Data Source
AI summary
Provided are modulators of androgen receptor (AR) condensates, methods of modulating or inhibiting AR condensates, and methods of treating diseases and conditions using such modulators or inhibitors of AR condensates.