eIF2B Modulators for Integrated Stress Response
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Solution Overview
Problem
Current therapies fail to effectively modulate the integrated stress response (ISR) pathway, particularly in addressing diseases related to eIF2α phosphorylation and eIF2B activity, which are implicated in neurodegenerative, leukodystrophic, cancerous, inflammatory, and metabolic disorders.
Innovation Solution
Development of compounds, such as those represented by Formula (I), which act as eIF2B modulators to activate eIF2B and attenuate the ISR signaling pathway, thereby treating diseases associated with impaired eIF2B function or components within the ISR pathway.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If eIF2α is phosphorylated in response to stress signals, then cells can cope with varied stresses through attenuation of translation, but this leads to reduced translation initiation and impaired cellular function in disease states
Solution Approach 1:
The patent uses eIF2B modulators as intermediary substances that bind to eIF2B to enhance its GEF activity, thereby indirectly regulating the phosphorylation-eIF2B interaction and restoring translation initiation without directly interfering with stress signal transduction
Solution Approach 2:
The patent changes the activity parameter of eIF2B by administering modulators that increase its guanine nucleotide exchange factor activity, shifting the balance between eIF2α phosphorylation-mediated inhibition and translation initiation promotion
2Reliability
If eIF2B activity is enhanced to restore translation initiation, then disease severity is reduced, but this requires development of specific small molecule modulators which increases therapeutic complexity
Solution Approach 1:
The patent systematically varies chemical parameters of small molecule compounds (substituents R1-R6, ring structures A-Z, linkers L1-L2) to optimize eIF2B binding affinity and GEF activation while managing structural complexity
Solution Approach 2:
The patent introduces specific functional groups and substituents at particular positions in the molecule (e.g., D group at position 1, A and Z rings at positions 2 and 3) to achieve localized interactions with eIF2B that enhance activity without requiring overall molecular complexity
Data Source
AI summary
Provided herein are compounds, compositions, and methods useful for modulating the integrated stress response (ISR) and for treating related diseases; disorders and conditions.