Compartmentalized Nucleic Acid Delivery for Targeted Gene Therapy
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Solution Overview
Problem
Current gene therapy methods face challenges in efficiently delivering nucleic acid molecules to specific tissues or organs without triggering systemic immune responses, causing toxicity, and achieving sustained expression of therapeutic proteins.
Innovation Solution
The method involves compartmentalizing a tissue or organ from the systemic circulation, allowing direct administration of a nucleic acid-containing agent, such as a virus, to parenchymal cells, and maintaining isolation until cellular uptake is complete, thereby minimizing systemic exposure and ensuring sustained expression.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If nucleic acid molecules are administered systemically for gene therapy, then therapeutic effect can be achieved, but systemic toxicity and immune responses occur
Solution Approach 1:
The patent applies segmentation by dividing the administration process into two distinct phases: first compartmentalizing the target organ to isolate it from systemic circulation, then administering the nucleic acid locally within the compartmentalized organ. This segmentation separates the therapeutic action from systemic exposure, achieving local efficacy while avoiding systemic toxicity.
Solution Approach 2:
The patent implements local quality by creating a localized high-concentration environment of nucleic acid within the compartmentalized organ parenchyma, while the rest of the body remains exposed to minimal or no nucleic acid. This localized concentration strategy maximizes therapeutic effect at the target site while minimizing systemic harmful effects.
2Reliability
If high doses of nucleic acid agents are administered to ensure cellular uptake, then gene expression can be achieved, but toxicity increases
Solution Approach 1:
The patent creates a localized high-concentration environment of nucleic acid within the compartmentalized organ parenchyma, ensuring adequate cellular uptake and gene expression at the target site without requiring high systemic doses that would cause toxicity.
Solution Approach 2:
The patent uses compartmentalization as an intermediary mechanism that facilitates efficient local delivery of nucleic acid to parenchymal cells. This intermediary approach enables controlled uptake and expression while acting as a barrier against systemic distribution and associated toxicity.
3Manufacturing precision
If nucleic acid is administered directly to parenchyma, then targeted delivery is achieved, but systemic circulation cannot be restored
Solution Approach 1:
The patent applies dynamics by making the compartmentalization reversible rather than permanent. The isolation of the organ from systemic circulation is maintained only during the nucleic acid administration phase, then actively reversed to restore normal blood flow. This dynamic approach enables both precise targeted delivery and subsequent restoration of physiological function.
Solution Approach 2:
The patent implements periodic action through a structured sequence: compartmentalization is applied periodically during administration, then removed periodically to restore circulation. This temporal rhythm ensures targeted delivery occurs during isolation while normal physiology is restored afterward, resolving the contradiction between precision and operational ease.
Data Source
AI summary
Provided herein is a method of delivering nucleic acid molecules to a compartmentalized tissue or organ of a subject. Also provided herein are uses and processes for delivering a nucleic acid molecule to the parenchyma of a compartmentalized tissue or organ. The methods and uses can be used in the treatment of diseases and conditions and in industrial, agricultural and veterinary applications. Also provided herein are compositions containing an adenovirus or adeno-associated virus or other recombinant virus formulated for administration to the parenchyma of a tissue or organ.