TAS2R46 Receptor Screening for Dextromethorphan Bitter Taste Modulation
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Solution Overview
Problem
Dextromethorphan, a common cough suppressant, has a bitter aftertaste that reduces patient compliance, and existing methods lack effective solutions to modulate or mask this bitterness.
Innovation Solution
Identifying and utilizing modulators, such as antagonists or inhibitors, that affect the activation of the TAS2R46 bitter taste receptor by dextromethorphan, using cells expressing this receptor and measuring changes in receptor activity or binding to determine effective masking agents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dextromethorphan is used as a cough suppressant, then the therapeutic effect is achieved, but a bitter aftertaste is produced that reduces patient compliance
Solution Approach 1:
The patent introduces TAS2R46 receptor-expressing cells as an intermediary system to screen for bitter taste modulators. These cells serve as a mediator between the drug (dextromethorphan) and the desired outcome (reduced bitter taste), enabling identification of compounds that can mask or reduce the bitter aftertaste while preserving the therapeutic cough suppressant effect
Solution Approach 2:
The patent converts the harmful bitter aftertaste into a beneficial screening tool by using the TAS2R46 receptor's specific response to dextromethorphan-induced bitter taste. This allows systematic identification of modulators that can reduce the bitter taste, thereby transforming the problematic sensory effect into a useful characteristic for drug formulation improvement
2Adaptability or versatility
If existing methods are used to address bitter taste, then general approaches are available, but no effective solutions exist to modulate or mask the specific bitter aftertaste of dextromethorphan
Solution Approach 1:
The patent applies local quality by focusing on the specific TAS2R46 receptor subtype that responds to dextromethorphan, rather than using general bitter taste receptors. This targeted approach provides both specificity for dextromethorphan and adaptability for screening various modulator compounds, resolving the contradiction between general method applicability and drug-specific effectiveness
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 method allows for the identification of agents that can significantly reduce or block the bitter taste of dextromethorphan, improving patient compliance by masking its unpleasant aftertaste.
Implementation Method 1
The receptors are broadly tuned to detect thousands of structurally diverse bitter substances... TAS2R46 is known to respond to certain sesquiterpene lactones, certain clerodane and labdane diterpenoids, strychnine and denatonium
Data Source
AI summary
TAS2R46 was identified as a dextromethorphan-binding bitter taste receptor. Novel methods to identify modulators and in particular inhibitors to the bitter taste of dextromethorphan are provided.