Odontoblast Differentiation Using BMP2 and BMP4 Synergy

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Solution Overview

Problem

Current methods lack effective conditions and markers for efficiently differentiating dental pulp stem cells into odontoblasts capable of regenerating dentin, and existing methods struggle to isolate and purify odontoblasts for tissue regeneration.

Innovation Solution

The use of bone morphogenetic proteins BMP2 and BMP4 to induce differentiation of dental pulp stem cells into odontoblasts, combined with the development of odontoblast-specific IgG and IgM monoclonal antibodies for effective isolation and purification.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If BMP2 alone is used to induce differentiation, then the process is simple, but the differentiation efficiency into odontoblasts is insufficient

Engineering Contradiction:

Improvesimplicity of differentiation processVSAvoiddifferentiation efficiency

Core Design Contradiction:

Ease of manufactureVSProductivity

Solution Approach 1:

The patent combines BMP2 and BMP4 in a differentiation induction kit to achieve synergistic effect. The combination of these two bone morphogenetic proteins significantly improves odontoblast differentiation efficiency compared to using BMP2 alone, while maintaining operational simplicity through a unified kit formulation.

Inventive Principle:

Principle #5Merging (Combining)

2Ease of operation

If conventional markers are used to isolate odontoblasts, then the method is straightforward, but the isolation and purification effectiveness is poor

Engineering Contradiction:

Improvestraightforwardness of isolation methodVSAvoidisolation and purification effectiveness

Core Design Contradiction:

Ease of operationVSManufacturing precision

Solution Approach 1:

The patent introduces new surface antigen markers (ODF-1, ODF-2, ODF-3) that are specifically expressed on odontoblasts. These novel markers enable precise identification and isolation of odontoblasts through flow cytometry or immunomagnetic separation, dramatically improving purification effectiveness while maintaining operational feasibility.

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

Significantly increases the differentiation efficiency of dental pulp stem cells into odontoblasts, enabling dentin regeneration and providing a means for effective isolation and purification of odontoblasts for tissue repair.

Implementation Method 1

The use of bone morphogenetic proteins BMP2 and BMP4 to induce differentiation of dental pulp stem cells into odontoblasts

Methodology Applied

Scientific EffectBone morphogenetic protein signaling:

Implementation Method 2

odontoblast-specific IgG and IgM monoclonal antibodies for effective isolation and purification

Methodology Applied

Scientific EffectAntibody-antigen binding:

Data Source

PatentUS11597914B2IgG type monoclonal antibodies specifically binding to odontoblast surface

Publication Date: 2023.03.07 DANKOOK UNIV CHEONAN CAMPUS IND ACADEMIC COOP FOUND

AI summary

The present invention relates to a composition for the differentiation of dental pulp stem cells into odontoblasts and an IgG or IgM type monoclonal antibody that specifically binds to the surface of odontoblasts differentiated from the stem cells. According to the present invention, BMP2 and BMP4 are optimally combined to significantly increase the differentiation efficiency of dental pulp stem cells into odontoblasts, to induce the mineralization of the matrix, and to improve the differentiation ability of odontoblasts into dentin. Further, the IgG or IgM monoclonal antibody that specifically binds to the surface of odontoblasts of the present invention is used to effectively isolate and purify odontoblasts, which can be useful for tissue regeneration and differentiation.