Cell-Free Nucleic Acid Monitoring for Therapeutic Construct Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for detecting therapeutic nucleic acid constructs in cell-free nucleic acids are not established, hindering the monitoring of therapeutic efficacy and safety in clinical applications.
Innovation Solution
A method using a computer to analyze sequence reads from cell-free nucleic acid molecules, filtering or enriching specific regions, and aligning them with differentiating reference sequences to detect and quantify therapeutic nucleic acid constructs in biological samples.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If in vivo electroporation is used to deliver therapeutic nucleic acid constructs, then transfection efficiency is improved, but muscle damage and inflammation are caused
Solution Approach 1:
The patent uses a specialized electrode array design with multiple electrodes arranged in a grid pattern, where each electrode can be independently controlled. This intermediary structure between the power source and tissue allows for distributed electrical field generation, reducing peak current density and minimizing muscle damage while maintaining effective transfection through the coordinated action of multiple electrodes
Solution Approach 2:
The patent implements dynamic control of electroporation parameters including variable pulse duration, amplitude, and number of pulses. The system can adjust these parameters in real-time based on tissue response, allowing optimization of transfection efficiency while minimizing harmful effects through adaptive parameter modulation
2Productivity
If multiple sequential electroporation pulses are applied to enhance gene delivery, then transfection efficiency is improved, but tissue heating and damage increase
Solution Approach 1:
The patent employs periodic electroporation pulses with specific inter-pulse intervals that allow tissue cooling between applications. This periodic action pattern enables multiple pulses to be delivered for enhanced gene delivery while the intervals prevent cumulative thermal damage by allowing heat dissipation between pulse sequences
Solution Approach 2:
The patent performs preliminary assessment of tissue properties and pre-cooling measures before applying multiple electroporation pulses. This preliminary action includes evaluating tissue thermal state and preparing cooling protocols to prevent overheating during subsequent pulse delivery
3Measurement precision
If invasive biopsy methods are used to monitor therapeutic cells, then diagnostic accuracy is improved, but patient discomfort and risk of infection increase
Solution Approach 1:
The patent replaces mechanical biopsy procedures with electrical field-based detection methods. By using electrical impedance spectroscopy and other non-invasive electrical measurements, the system can monitor therapeutic cell presence and activity without physical tissue sampling, eliminating patient discomfort and infection risks while maintaining diagnostic accuracy
Solution Approach 2:
The patent introduces electromagnetic fields as an intermediary between the monitoring system and the therapeutic cells. This allows indirect detection of cell characteristics through their electrical properties without direct physical contact or invasion, providing accurate monitoring while avoiding the harmful effects of invasive procedures
4Productivity
If high current density is applied during electroporation, then nucleic acid delivery efficiency is improved, but cell membrane damage and tissue necrosis occur
Solution Approach 1:
The patent divides the electroporation process into multiple low-current-density pulses rather than a single high-current application. By segmenting the total energy delivery into numerous smaller pulses, the system achieves cumulative nucleic acid delivery efficiency while keeping each individual pulse below the threshold for cell membrane damage and tissue necrosis
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 non-invasive detection and monitoring of therapeutic nucleic acid constructs, facilitating safety and efficacy assessment in therapeutic interventions.
Implementation Method 1
The detectable label may be a fluorescent protein, a fluorescent dye, a luminescent protein, a luminescent dye, an enzyme, a radionuclide, or other detectable label known to those of skill in the art.
Implementation Method 2
In one aspect, the invention provides a method for the non-invasive detection and monitoring of therapeutic nucleic acid constructs in a subject, the method comprising: administering a therapeutic nucleic acid construct to a subject in need of such treatment; applying an electrical pulse to the subject to facilitate entry of the therapeutic nucleic acid construct into cells of the subject
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Methods, systems, and compositions for non-invasively detecting and/or monitoring therapeutic nucleic acid constructs in a sample comprising cell-free nucleic acids from a subject. Detection of therapeutic nucleic acid constructs in samples comprising cell-free nucleic acids allows for verifying therapeutic nucleic acid construct administration, determining the persistence or biological efficacy of the therapeutic nucleic acid construct, and/or ascertaining the efficacy of the therapy in the subject.