Fluoride-Responsive Riboswitches for Cellular Toxicity Control
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Solution Overview
Problem
Current technologies lack effective methods for regulating fluoride levels in cells, leading to toxicity issues, and there is a need for systems to sense and manipulate cellular fluoride concentrations for both research and therapeutic applications.
Innovation Solution
Development of fluoride-responsive riboswitches and aptamers that can bind fluoride, allowing for the creation of reporter systems for high-throughput screening and identification of compounds that influence fluoride uptake and retention, as well as the classification of targets for fluoride concentration agonists and inhibitors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fluoride is used in oral hygiene products, then beneficial effects on teeth are improved, but fluoride buildup in cells becomes toxic
Solution Approach 1:
The patent introduces fluoride transporters as intermediary proteins that mediate fluoride entry into cells, and riboswitches as intermediary sensing elements that detect fluoride levels. These intermediaries allow controlled fluoride utilization for beneficial effects while preventing toxic accumulation through regulated transport and sensing mechanisms.
Solution Approach 2:
The patent employs riboswitches that change their conformational state based on fluoride concentration parameters. When fluoride levels reach toxic thresholds, the riboswitch undergoes structural changes that trigger gene expression responses to mitigate toxicity, thus dynamically adjusting cellular response based on fluoride parameter levels.
2Device complexity
If fluoride levels in cells are not regulated, then cellular metabolism is simple, but fluoride toxicity occurs
Solution Approach 1:
The patent describes self-regulating systems where riboswitches automatically sense fluoride concentrations and trigger appropriate gene expression responses without external intervention. The crcB riboswitch system serves itself by detecting toxic fluoride levels and autonomously activating transporters or detoxification genes, enabling cellular self-protection against fluoride toxicity.
3Productivity
If fluoride uptake is increased for therapeutic effects, then antimicrobial activity is enhanced, but cellular fluoride concentration becomes toxic
Solution Approach 1:
The patent implements feedback control through riboswitches that continuously monitor intracellular fluoride concentrations. When fluoride levels indicate sufficient antimicrobial activity has been achieved or toxicity thresholds are approached, the riboswitch feedback signals adjust transporter expression or activity, thereby maintaining therapeutic fluoride levels while preventing toxic accumulation.
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
Enables the regulation of fluoride levels within cells, providing tools for both basic research and therapeutic applications, such as enhancing antimicrobial activity and improving cell survival in high fluoride environments.
Implementation Method 1
fluoride aptamers that can bind fluoride, allowing for the creation of reporter systems for high-throughput screening
Implementation Method 2
a key biochemical component of a bacterial cell's fluoride surveillance and response system is the new-found fluoride-responsive riboswitch class based on the crcB motif
Data Source
AI summary
Disclosed are compounds, compositions, and methods relating to fluoride aptamers, fluoride-responsive riboswitches, fluoride-regulated expression constructs, fluoride transporters, nucleic acids encoding fluoride transporters, expression constructs encoding fluoride transporters, and cells containing or including any combination of these.