LSD1 LSD2 Inhibitor Selectivity via Local Quality
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Solution Overview
Problem
Current LSD1 and LSD2 inhibitors lack selectivity and potency, making them inadequate for effectively targeting these proteins in cancer treatment and other diseases associated with LSD dysfunction.
Innovation Solution
Development of compounds that selectively inhibit LSD1 and LSD2 by binding to their FAD domain, disrupting their interaction with other proteins and inhibiting histone demethylation, thereby modulating their activity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current LSD1 and LSD2 inhibitors are used, then some inhibition activity is achieved, but selectivity and potency are insufficient
Solution Approach 1:
The patent applies local quality by introducing specific substituent groups (R1-R6) at particular positions on the core molecular structure. These localized modifications at specific sites enhance binding affinity and selectivity for LSD1/LSD2 while maintaining overall structural feasibility. The substituent patterns are optimized to interact with specific residues in the enzyme active site.
Solution Approach 2:
The molecular structures exhibit asymmetry through non-symmetric substitution patterns on the aromatic rings. The R groups are distributed asymmetrically across the molecular framework, creating chiral centers and asymmetric binding interfaces that improve enantioselectivity and distinguish between similar enzyme targets, thereby enhancing selectivity.
2Manufacturing precision
If compound potency is increased through structural optimization, then inhibition effectiveness improves, but synthesis difficulty increases
Solution Approach 1:
The molecular structure is segmented into distinct functional modules: a core aromatic system, substituent groups R1-R6, and linker regions. This modular segmentation allows independent optimization of each module for binding affinity while using standardized synthetic building blocks, facilitating stepwise synthesis and improving manufacturability.
Solution Approach 2:
The core molecular scaffold serves multiple functions: it provides the basic binding interface, positions substituent groups for optimal interaction, and maintains structural stability. This multi-functionality reduces the need for additional auxiliary groups, simplifying synthesis while maintaining high potency.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The compounds exhibit selective inhibition of LSD1 and LSD2, effectively reducing histone demethylation activity, which can lead to the reactivation of tumor suppressor genes and the treatment of disorders associated with uncontrolled cellular proliferation.
Implementation Method 1
compounds that selectively inhibit LSD1 and LSD2 by binding to their FAD domain
Data Source
AI summary
Methods of treatment of disorders of uncontrolled cellular proliferation, including cancer, by administering substituted (E)-N′-(1-phenylethylidene)benzohydrazide analogs, derivatives thereof, and related compounds to mammals in need thereof.