Exosome Nucleic Acid Delivery for Immune Evasion
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Solution Overview
Problem
Current gene therapy methods using viruses or liposomes can trigger adverse immune reactions due to their foreign nature, and there is no established method for transferring genetic material or nucleic acids between cells using exosomes.
Innovation Solution
Exosomes are modified to carry specific RNA and DNA constructs by transformation, transfection, or microinjection, allowing them to transfer genetic material to recipient cells, potentially avoiding immune reactions since they are derived from the cells themselves.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If viruses or liposomes are used for gene therapy, then genetic material can be delivered to cells, but adverse immune reactions are triggered due to foreign nature
Solution Approach 1:
The patent applies self-service by using exosomes derived from the patient's own cells (autologous exosomes) to deliver genetic material. This eliminates the foreign nature problem that causes immune reactions, while still achieving effective gene delivery through the exosomes' natural ability to transfer nucleic acids between cells.
Solution Approach 2:
The patent uses exosomes as an intermediary carrier between the source of genetic material and the target cells. Exosomes serve as a natural mediator that can transport nucleic acids without triggering immune responses, unlike traditional viral or liposomal vectors.
2Object-affected harmful factors
If exosomes are used to transfer nucleic acids, then immune reactions are avoided, but the method for transferring genetic material is not established
Solution Approach 1:
The patent applies preliminary action by first modifying the exosomes to carry specific nucleic acid constructs before they are administered to cells. This involves transforming or transfecting the exosomes with the desired genetic material in advance, establishing a controlled method for gene delivery that avoids immune reactions.
Solution Approach 2:
The patent uses copying by creating modified exosomes that replicate the natural exosome structure and function but contain engineered nucleic acid constructs. This allows the establishment of a new method for gene transfer that leverages the natural properties of exosomes while introducing specific therapeutic capabilities.
3Adaptability or versatility
If exosomes carry selective RNA from parental cells, then gene modulation can be achieved, but the mechanism is not fully understood
Solution Approach 1:
The patent applies local quality by demonstrating that exosomes carry selective RNA from parental cells rather than a random mixture of all cellular RNA. This selective packaging creates specific local compositions in the exosomes that enable targeted gene modulation in recipient cells, while the exact mechanism of this selection remains an area for further investigation.
Data Source
AI summary
Methods for introducing nucleic acids to cells via exosomes for use in gene modulation and therapy, such as for gene silencing and to introduce genetic material into cells to compensate for abnormal genes or to induce or repress a process in the recipient cell.