Umbilical Cord Mesenchymal Stem Cell IGF1R Expression

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Solution Overview

Problem

Current methods for enhancing the expression of insulin-like growth factor 1 receptor (IGF1R) in mesenchymal stem cells (MSCs) are inefficient, and there is a need for a more effective method to maintain the multipotent capability of these cells.

Innovation Solution

Culturing umbilical cord mesenchymal stem cells (UMSCs) expressing IGF1R in a medium containing platelet-derived growth factor BB (PDGF-BB) at concentrations of 2.5-50 ng/mL to enhance IGF1R expression, while using human cord blood serum (hUCS) to support clonogenic expansion and maintain multipotency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If conventional methods are used to enhance IGF1R expression in MSCs, then some expression enhancement may be achieved, but the efficiency is low and multipotent capability is compromised

Engineering Contradiction:

ImproveIGF1R expression levelVSAvoidenhancement efficiency

Core Design Contradiction:

Quantity of substanceVSProductivity

Solution Approach 1:

The patent applies parameter changes by optimizing the concentration of PDGF-BB (2.5-50 ng/mL) in the culture medium to enhance IGF1R expression efficiency. This specific parameter adjustment resolves the contradiction by achieving high expression levels while maintaining multipotent capability, directly addressing the low efficiency problem of conventional methods

Inventive Principle:

Principle #35Parameter changes

2Quantity of substance

If conventional methods are used to enhance IGF1R expression in MSCs, then some expression enhancement may be achieved, but multipotent capability is lost

Engineering Contradiction:

ImproveIGF1R expression levelVSAvoidmultipotent capability

Core Design Contradiction:

Quantity of substanceVSStability of the object's composition

Solution Approach 1:

The patent employs continuous culture in PDGF-BB containing medium to maintain both high IGF1R expression and multipotent capability simultaneously. This continuous exposure to optimized growth factors prevents the loss of multipotency while sustaining enhanced receptor expression, resolving the stability contradiction

Inventive Principle:

Principle #20Continuity of useful action

3Quantity of substance

If PDGF-BB is used to enhance IGF1R expression, then expression level increases, but culture conditions become more complex

Engineering Contradiction:

ImproveIGF1R expression levelVSAvoidculture medium composition

Core Design Contradiction:

Quantity of substanceVSDevice complexity

Solution Approach 1:

The patent leverages the multi-functionality of PDGF-BB which serves both as a growth factor for MSC proliferation and as an enhancer of IGF1R expression. This single compound performs multiple functions, simplifying the overall culture system while achieving the desired expression enhancement without requiring additional complex components

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20250152634A1Method for enhancing expression of insulin like growth factor 1 receptor in umbilical cord mesenchymal stem cell and method for obtaining multipotent umbilical cord mesenchymal stem cell

Publication Date: 2025.05.15 CHINA MEDICAL UNIVERSITY(TW)

AI summary

A method for enhancing an expression of insulin like growth factor 1 receptor in an umbilical cord mesenchymal stem cell is provided. The method includes culturing the umbilical cord mesenchymal stem cell expressing insulin-like growth factor 1 receptor in a medium containing platelet-derived growth factor BB (PDGF-BB) to enhance the expression of insulin like growth factor 1 receptor in the umbilical cord mesenchymal stem cell.