KDM6B WDR5 Peptide for Mesenchymal Stem Cell Osteogenic Differentiation

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Solution Overview

Problem

Current treatments for osteoporosis and tooth loss in elderly patients are inadequate, as they often come with side effects and limited bone recovery, and existing restoration methods for tooth loss are non-biological and costly.

Innovation Solution

The use of a bioactive peptide derived from the KDM6B protein complex, specifically targeting the WDR5 and KDM6B interaction, to inhibit senescence and promote osteogenic or odontogenic differentiation of mesenchymal stem cells, thereby enhancing bone and dental tissue regeneration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If bisphosphonates are used to prevent fracture, then fracture incidence rate is reduced by 40-70%, but side effects occur such as acute renal failure, oesophageal cancer, and musculoskeletal pain

Engineering Contradiction:
Improvefracture prevention efficacyVSAvoidside effects
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent extracts and targets the specific molecular mechanism (Runt-related transcription factor 2/Runx2) that controls osteoblast differentiation and bone formation. By intervening at this specific molecular level rather than using broad-spectrum bisphosphonates, the treatment can stimulate bone formation without causing the systemic side effects of conventional drugs.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent uses an intermediary approach by targeting the Runx2 transcription factor as a mediator between the treatment and bone formation. This intermediary mechanism allows for controlled stimulation of osteoblast differentiation through the Wnt/β-catenin signaling pathway, achieving bone anabolism without the harmful effects of direct bisphosphonate action on bone resorption.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If parathyroid hormone is used to stimulate bone formation, then fracture risk is reduced, but osteosarcoma development occurs and treatment duration is limited to 2 years

Engineering Contradiction:
Improvebone formation stimulationVSAvoidosteosarcoma risk
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent applies local quality by specifically targeting the Runx2 transcription factor and Wnt/β-catenin signaling pathway in osteoprogenitor cells to stimulate bone formation. This localized molecular intervention differs from the systemic action of PTH, providing bone anabolism with potentially reduced risk of osteosarcoma by acting through a different molecular mechanism.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent changes the molecular parameters of bone formation stimulation by activating the Wnt/β-catenin pathway and Runx2 expression rather than using PTH. This parameter change in the mechanism of action allows for sustained bone formation stimulation without the same limitations on treatment duration and osteosarcoma risk associated with PTH therapy.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If hormone replacement therapy is used for postmenopausal bone loss, then bone density is maintained, but breast cancer risk increases

Engineering Contradiction:
Improvebone loss preventionVSAvoidbreast cancer risk
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent extracts and targets the specific molecular pathway (Wnt/β-catenin/Runx2) that regulates osteoblast differentiation and bone formation. By intervening at this specific molecular level rather than using hormone replacement therapy, the treatment can stimulate bone formation without causing the systemic hormonal side effects including increased breast cancer risk.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent substitutes the hormonal mechanism (mechanics) with a molecular signaling mechanism. Instead of using hormones to maintain bone density, the patent uses targeted molecular intervention at the Runx2 and Wnt/β-catenin pathway level to stimulate bone formation, replacing the hormonal system with a more specific molecular therapy that avoids hormonal side effects.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

4Reliability

If non-biological prosthetic restorations are used for tooth loss, then tooth function is restored, but adjacent healthy teeth are damaged and costs are high

Engineering Contradiction:
Improvetooth function restorationVSAvoiddamage to adjacent teeth
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent applies self-service by stimulating the patient's own mesenchymal stem cells to differentiate into odontoblasts and regenerate dental tissue. This autologous regeneration approach eliminates the need for non-biological prosthetics that require preparation of adjacent teeth, allowing the body to naturally restore tooth structure without damaging surrounding healthy teeth.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent discards the need for non-biological prosthetic restorations and instead recovers and utilizes the body's own stem cell regenerative capacity. By activating the Wnt/β-catenin/Runx2 pathway in mesenchymal stem cells, the treatment enables natural tooth tissue regeneration, eliminating the harmful effects of prosthetic preparation on adjacent teeth.

Inventive Principle:
Principle #34Discarding and recovering

Data Source

PatentUS20250041387A1Polypeptide sequence of KDM6b and application of KDM6b in regulating and controlling function of mesenchymal stem cell
Publication Date: 2025.02.06 BEIJING STOMATOLOGY HOSPITAL CAPITAL MEDICAL UNIV
  • US20250041387A1 patent drawing
  • US20250041387A1 patent drawing
  • US20250041387A1 patent drawing

AI summary

Disclosed in the present invention is an application of lysine (K)-specific demethylase 6B (KDM6B) in regulating and controlling the function of a mesenchymal stem cell. WDR5 is a co-binding protein for negatively regulating and controlling the functions of KDM6B and the MLL1. WDR5 can form a protein complex with KDM6B to inhibit the function of KDM6B, such that expression and functions of genes are regulated and controlled by regulating and controlling the methylation state of downstream senescence and osteogenesis related genes and gene promoter region histone, and finally the effects of regulating stem cell senescence and differentiation functions and bone/tooth tissue repair and regeneration functions are achieved. For a KDM6B and WDR5 binding region sequence, small-molecule polypeptide is researched, developed, and utilized, and the function of the mesenchymal stem cell is regulated by regulating and controlling the binding of a KDM6B/WDR5 complex.