Scaffold-Free 3D Stem Cell Tissue for Intervertebral Disc Engraftment

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Solution Overview

Problem

Existing methods for intervertebral disc transplantation, such as those using scaffold-free self-organized 3D artificial tissues, face challenges with engraftment and durability of transplanted tissues.

Innovation Solution

An intervertebral disc therapeutic agent comprising a scaffold-free artificial tissue formed by synovium-derived mesenchymal stem cells, which are serum-free cultured and capable of forming a three-dimensional structure, enhances engraftment and durability at the transplantation site.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If scaffold-free self-organized 3D artificial tissue is used for intervertebral disc transplantation, then tissue strength for clinical application is achieved, but post-transplantation engraftment is insufficient

Engineering Contradiction:
Improvetissue strengthVSAvoidengraftment
Core Design Contradiction:
StrengthVSReliability

Solution Approach 1:

The invention changes the cell source parameter from adipose-derived mesenchymal stem cells to synovium-derived mesenchymal stem cells. This parameter change results in cells with enhanced engraftment capability while maintaining the ability to form scaffold-free 3D artificial tissue with sufficient mechanical strength for clinical application

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The invention uses synovium-derived mesenchymal stem cells that naturally possess superior engraftment properties, effectively copying the favorable characteristics of synovial tissue cells to improve transplantation outcomes in intervertebral disc regeneration

Inventive Principle:
Principle #26Copying

Data Source

PatentEP4591869A1Intervertebral disc therapeutic agent
Publication Date: 2025.07.30 TWO CELLS
  • EP4591869A1 patent drawingFigure 1
  • EP4591869A1 patent drawingFigure 2~3
  • EP4591869A1 patent drawingFigure 4

AI summary

Provided is an intervertebral disc therapeutic agent that exhibits favorable post-transplantation engraftment. The intervertebral disc therapeutic agent contains a scaffold-free artificial tissue in which synovium-derived mesenchymal stem cells have formed a three-dimensional structure.