Stem Cell Lin28 Gene Expression for Renewal Potency
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Solution Overview
Problem
Current treatments for intractable neurological disorders, such as Alzheimer's disease, lack effective therapeutic agents, and stem cell therapies face challenges in maintaining stem cell renewal ability and differentiation potency during proliferation and subculturing.
Innovation Solution
Introducing the Lin28 gene into stem cells to regulate embryonic development and differentiation, using viral or RNA replicon vectors to express Lin28, which enhances the therapeutic potential of stem cells by blocking the loss of renewal and differentiation potency, thereby improving their effectiveness in treating neurological and other disorders.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If stem cells are proliferated and subcultured for therapeutic use, then the quantity of stem cells increases, but the renewal ability and differentiation potency of stem cells are lost
Solution Approach 1:
The patent introduces the Lin28 gene into stem cells to alter the expression level of this key regulatory protein. By changing the parameter of Lin28 expression, the stem cells maintain their renewal ability and differentiation potency even after prolonged proliferation and subculturing, thus resolving the contradiction between increasing cell quantity and maintaining cell quality
Solution Approach 2:
The patent applies preliminary action by introducing the Lin28 gene before the stem cells undergo prolonged proliferation. This preliminary genetic modification ensures that the stem cells are pre-equipped with the ability to maintain their potency throughout the culturing process, preventing the loss of renewal ability and differentiation potency before it occurs
2Reliability
If Lin28 gene is introduced into stem cells to maintain potency, then the therapeutic effectiveness improves, but the complexity of the preparation method increases
Solution Approach 1:
The patent uses viral vectors as intermediary carriers to deliver the Lin28 gene into stem cells. This intermediary approach simplifies the overall process by using a well-established viral transduction system rather than attempting direct gene manipulation, making the preparation method more feasible despite the added step of vector introduction
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
The expression of Lin28 in stem cells maintains their potency and viability, leading to improved therapeutic outcomes in neurological disorders by promoting neural and other tissue cell differentiation and survival, as demonstrated in Parkinson's disease models.
Implementation Method 1
Introducing the Lin28 gene into stem cells to regulate embryonic development and differentiation
Implementation Method 2
using viral or RNA replicon vectors to express Lin28
Data Source
AI summary
The present invention relates to a cell therapeutic agent comprising a stem cell expressing Lin28, a pharmaceutical composition comprising a stem cell expressing Lin28 for the prevention or treatment of a neurological disorder, a bone disorder, a muscular system disorder, an epithelium-related disorder or a blood-related disorder, and a method for treating a neurological disorder, a bone disorder, a muscular system disorder, an epithelium-related disorder or a blood-related disorder using the composition. A stem cell excellent in terms of differentiation potency to various tissue cells and renewal ability can be prepared by introducing Lin28, which regulates an embryonic development procedure, or a vector expressing Lin28 during stem cell culturing, and by culturing the cell.