eIF2B Modulators for Integrated Stress Response
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Solution Overview
Problem
Current treatments for neurodegenerative diseases, leukodystrophies, cancers, inflammatory diseases, and musculoskeletal diseases often fail to effectively modulate the integrated stress response (ISR) pathway, particularly by targeting the eIF2B complex, which is crucial for translation initiation and cellular stress management.
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 activity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If eIF2α is phosphorylated in response to stress signals, then translation is attenuated to help cells cope with stress, but this blocks ternary complex formation and reduces translation initiation excessively
Solution Approach 1:
The patent introduces eIF2B as an intermediary molecule that mediates between phosphorylated eIF2α and the ternary complex formation. By enhancing eIF2B activity, the system can overcome the inhibitory effect of phosphorylated eIF2α and restore translation initiation while maintaining stress response capabilities
Solution Approach 2:
The patent modifies the activity level of eIF2B as a key parameter to resolve the contradiction. By increasing eIF2B activity through small molecule modulators, the system shifts the balance between stress response and translation initiation, allowing both functions to coexist effectively
2Productivity
If eIF2B activity is enhanced to restore translation initiation, then productivity improves, but the ability to respond to stress signals may be compromised
Solution Approach 1:
The patent creates a dynamic system where eIF2B activity can be modulated in response to cellular conditions. The small molecule modulators allow the system to adapt eIF2B activity levels, enabling high translation initiation under normal conditions while maintaining the capacity for stress response when needed
Solution Approach 2:
The patent establishes a feedback mechanism where the cellular stress state influences eIF2α phosphorylation, which in turn regulates eIF2B activity. This feedback loop ensures that translation initiation is restored when stress is low, while maintaining stress response capability when stress occurs
3Reliability
If small molecule modulators are developed to target eIF2B, then treatment efficacy for eIF2B-related diseases improves, but device and treatment complexity increases
Solution Approach 1:
The patent extracts the key functional element (eIF2B) from the complex ISR pathway and creates targeted small molecule modulators that specifically interact with eIF2B. This extraction approach simplifies the treatment strategy by focusing on a single target rather than the entire pathway, reducing overall treatment complexity while maintaining efficacy
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.