Neprilysin-Overexpressing Stem Cell Composition for Amyloid Beta Clearance

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Solution Overview

Problem

Current treatments for cognitive impairment, particularly Alzheimer's disease, are inadequate in addressing the underlying causes such as amyloid beta accumulation and reduced acetylcholine synthesis, and there is a need for more effective therapeutic agents.

Innovation Solution

A pharmaceutical composition containing neprilysin-overexpressing stem cells, their conditioned medium, and exosomes isolated therefrom, which inhibit amyloid beta accumulation and increase acetylcholine expression, thereby improving cognitive function.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If current treatments for Alzheimer's disease are used, then cognitive function is partially maintained, but the underlying causes such as amyloid beta accumulation and reduced acetylcholine synthesis are not effectively addressed

Engineering Contradiction:

Improveeffectiveness of treatmentVSAvoidamyloid beta accumulation

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent utilizes neprilysin-overexpressing stem cells to convert the harmful accumulation of amyloid beta into a beneficial process by enhancing neprilysin enzyme activity, which specifically degrades amyloid beta peptides. This transforms the pathological accumulation problem into a therapeutic opportunity where the stem cells' overexpressed neprilysin actively clears amyloid beta deposits, addressing the root cause rather than merely managing symptoms

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

The patent introduces neprilysin-overexpressing stem cells as an intermediary mediator between the harmful amyloid beta accumulation and the desired therapeutic outcome. These stem cells serve as a bridge by secreting neprilysin enzyme that specifically targets and degrades amyloid beta, while also promoting acetylcholine synthesis, thus mediating the complex pathological processes of Alzheimer's disease

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If acetylcholinesterase inhibitors are administered, then acetylcholine function is enhanced, but the underlying reduction in acetylcholine synthesis is not fully resolved

Engineering Contradiction:

Improveacetylcholine functionVSAvoidacetylcholine synthesis

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The patent employs neprilysin-overexpressing stem cells to perform preliminary action by proactively enhancing acetylcholine synthesis before acetylcholine degradation occurs. The stem cells are engineered to pre-establish high levels of neprilysin activity, which not only clears amyloid beta but also creates a favorable environment for acetylcholine production, addressing the synthesis deficit before it leads to functional impairment

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent implements parameter changes by modifying the neprilysin enzyme activity parameter through stem cell overexpression. This parameter change has dual effects: increasing amyloid beta degradation rate and enhancing acetylcholine synthesis rate. By changing the neprilysin activity parameter, the system simultaneously addresses both the harmful accumulation and the insufficient synthesis of acetylcholine

Inventive Principle:

Principle #35Parameter changes

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

The composition effectively protects nerve cells, inhibits amyloid beta accumulation, and enhances acetylcholine levels, demonstrating significant improvements in cognitive function in animal models.

Implementation Method 1

neprilysin-overexpressing stem cells, which inhibit amyloid beta accumulation

Methodology Applied

Scientific EffectEnzymatic degradation: Enzyme

Implementation Method 2

increase acetylcholine expression

Methodology Applied

Scientific EffectBiochemical synthesis:

Data Source

PatentUS12441982B2Pharmaceutical composition containing neprilysin-overexpressing stem cell, conditioned medium thereof, and exosome isolated therefrom as active ingredient for prevention or treatment of cognitive impairment

Publication Date: 2025.10.14 DESIGNED CELLS CO LTD

AI summary

Disclosed herein is a pharmaceutical composition containing a neprilysin-overexpressing stem cell, a conditioned medium thereof, and an exosome isolated therefrom as an active ingredient for prevention or treatment of cognitive impairment. Having the functions of protecting nerve cells, inhibiting the accumulation of amyloid beta, known as a cause of cognitive impairment-related disease in animal models, increasing an expression level of acetyl choline, and improving cognitive functions in animal models, the neprilysin-overexpressing stem cells, the conditioned medium thereof, or the exosomes isolated therefrom according to the present disclosure can find advantageous applications in treating cognitive impairment.