CPNE7 Protein Differentiates Stem Cells into Odontoblasts
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Solution Overview
Problem
Current treatments for dentin hypersensitivity and pulp diseases, such as those using MTA or Gutta-percha, face challenges including high cost, esthetic issues, chronic infectious reactions, low adhesiveness, and limited ability to regenerate damaged tissues, leading to weak teeth or reinfection, with no effective method for differentiating non-dental mesenchymal stem cells into odontoblasts for tissue regeneration.
Innovation Solution
The use of CPNE7 protein or gene to differentiate non-dental mesenchymal stem cells into odontoblasts, interacting with Nucleolin to regulate Dspp expression, for regenerating dentin and pulp tissues, treating dentin hypersensitivity, and inducing reactionary pulp formation, potentially combined with materials like MTA or calcium hydroxide.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If MTA is used for pulp capping, then leakage sealing ability and biocompatibility are improved, but cost increases and esthetic problems occur
Solution Approach 1:
The invention uses BMP-2 protein or gene to induce endogenous stem cells to differentiate into odontoblasts, creating a biological copy of the natural dentin formation process. This replaces the need for expensive MTA material while achieving similar sealing and biocompatibility effects through physiological regeneration.
Solution Approach 2:
The invention enables the pulp tissue to self-regenerate by activating endogenous stem cells through BMP-2 signaling. The body's own cells perform the regeneration function without requiring external MTA material, reducing cost while maintaining reliability.
2Ease of manufacture
If Gutta-percha is used for pulp treatment, then cost is reduced and flow characteristics are improved, but chronic infectious reactions occur and tissue regeneration ability is lost
Solution Approach 1:
The invention activates the body's own stem cells to perform regeneration, making the tissue self-repairing. This replaces Gutta-percha's passive filling approach with an active biological regeneration process that maintains low cost while restoring tissue regeneration ability.
Solution Approach 2:
The invention changes the fundamental parameter of treatment from mechanical filling (Gutta-percha) to biological induction (BMP-2 signaling). This parameter change enables tissue regeneration while maintaining cost-effectiveness.
3Reliability
If conventional pulp capping materials are used, then immediate sealing is achieved, but ability to regenerate damaged tissues is limited leading to weak teeth
Solution Approach 1:
The invention applies BMP-2 protein or gene before complete tissue loss occurs, inducing stem cell differentiation into odontoblasts that will form new dentin. This preliminary biological action strengthens the tooth structure before damage progresses, unlike conventional materials that only seal after damage occurs.
Solution Approach 2:
The invention creates a composite approach combining BMP-2 biological signaling with stem cell therapy to regenerate dentin-pulp complex. This composite biological system restores tooth strength by creating new living tissue rather than relying on inert sealing materials.
4Adaptability or versatility
If non-dental mesenchymal stem cells are used for regeneration, then cell source availability is improved, but differentiation into odontoblasts cannot be achieved with conventional methods
Solution Approach 1:
The invention demonstrates that BMP-2 protein or gene can universally induce differentiation of various mesenchymal stem cells (dental pulp, periodontal ligament, bone marrow) into odontoblasts. This multi-functional approach allows use of any available mesenchymal stem cell source while achieving reliable odontoblast differentiation.
Solution Approach 2:
The invention changes the differentiation parameter by introducing BMP-2 signaling pathway activation. This parameter change enables non-dental mesenchymal stem cells to differentiate into odontoblasts, overcoming the limitation of conventional methods that only work with dental-specific stem cells.
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
This approach effectively regenerates dentin and pulp tissues, addresses dentin hypersensitivity by blocking stimulus transmission through dentinal tubules, and provides a more effective and physiological solution compared to existing materials, enhancing tissue regeneration and reducing sensitivity.
Implementation Method 1
the CPNE7 protein interacts with the Nucleolin so as to regulate an expression of the Dspp
Implementation Method 2
regulate an expression of the Dspp
Implementation Method 3
transfecting the mesenchymal stem cells with an ODN
Implementation Method 4
induce the expression of a CPNE7 protein in the mesenchymal stem cells
Implementation Method 5
regenerating dentin and pulp tissues
Implementation Method 6
addresses dentin hypersensitivity by blocking stimulus transmission through dentinal tubules
Data Source
AI summary
The present invention relates to: composition for differentiating non-dental mesenchymal stem cells into odontoblasts comprising CPNE7 protein or gene; method for differentiating in vitro non-dental mesenchymal stem cells using the same; and also use thereof.