RNA Stabilization via Complementary Oligonucleotide Hybridization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
RNA molecules used as standards or targets in nucleic acid diagnostics are prone to degradation due to thermal instability and RNase contamination, leading to testing failures and decreased sensitivity, especially in conditions without refrigeration.
Innovation Solution
The method involves hybridizing single-stranded RNA templates with complementary oligonucleotides that are at least 11 to 50 nucleotides in length, with a melting temperature 5°C lower than the extension temperature, and present at concentrations significantly lower than primers and probes, to stabilize the RNA during amplification reactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If RNA is used as a standard or target in nucleic acid diagnostics, then detection and quantification can be performed, but RNA degradation occurs due to thermal instability and RNase contamination
Solution Approach 1:
The patent introduces an RNA-binding protein as an intermediary that binds to RNA standards or targets, forming a protective complex. This protein mediator shields the RNA from RNase contamination and thermal degradation, enabling stable RNA-based diagnostics without refrigeration while maintaining detection reliability
Solution Approach 2:
The patent creates a composite structure by combining RNA with RNA-binding proteins to form a stable complex. This composite material exhibits enhanced thermal stability and RNase resistance compared to naked RNA, allowing the RNA to maintain its diagnostic function under elevated temperatures and in the presence of RNases
2Measurement precision
If RNA standards are used for absolute quantification, then precise concentration determination is achieved, but RNA degradation decreases sensitivity
Solution Approach 1:
The RNA-binding protein acts as a protective intermediary that preserves the integrity of RNA standards used for quantification. By preventing degradation, the protein ensures that the RNA standards maintain their precise concentration characteristics throughout the assay, thereby preserving both quantification precision and detection sensitivity
3Stability of the object's composition
If refrigeration is used to prevent RNA degradation, then RNA stability is improved, but device complexity and operational requirements increase
Solution Approach 1:
The RNA-binding protein provides self-service protection to the RNA by forming a stable complex that inherently resists degradation. This self-protective mechanism eliminates the need for external refrigeration infrastructure, simplifying storage and operational requirements while maintaining RNA stability
Solution Approach 2:
The patent changes the physical-chemical parameters of the RNA system by introducing RNA-binding proteins that shift the stability profile of RNA. This parameter change enables the RNA to maintain stability at elevated temperatures without refrigeration, fundamentally altering the storage and handling requirements
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
This approach significantly reduces RNA degradation, maintaining stability for extended periods at various temperatures, including elevated conditions, thereby enhancing the reliability and sensitivity of nucleic acid detection and quantification assays.
Implementation Method 1
hybridizing the single-stranded RNA template with one or more oligonucleotides whose sequences are completely or partially complementary to the segment of the single-stranded RNA template that is amplified
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present invention relates to methods and compositions for the stabilization of specific RNA molecules that can either be the target for detection or the control standard by hybridizing one or more protecting / stabilizing oligonucleotides to said RNA molecules.