Basal Chorionic Trophoblast Stem Cells for Regenerative Therapy
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Solution Overview
Problem
Current stem cell therapies from the placenta face limitations in proliferation and differentiation capacity, and there is a lack of research on stem cells derived from the basal portion of the chorionic trophoblast layer, which could offer enhanced regenerative capabilities.
Innovation Solution
A method for isolating and culturing stem cells from the basal portion of the chorionic trophoblast layer, specifically the 20-30% thickness adjacent to the chorionic membrane, demonstrating superior growth and differentiation characteristics, and using these cells for tissue regeneration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If stem cells are derived from whole placenta or other adult tissues, then extraction is easy and large amount can be obtained, but proliferation and differentiation capacity is limited and shows large variability
Solution Approach 1:
The invention segments the placenta tissue into specific regions (chorionic trophoblast layer, decidua, amniotic membrane) and further divides the chorionic trophoblast layer into basal portion (adjacent to chorionic membrane) and other portions. By isolating stem cells from the specific basal portion region rather than using whole placenta, the invention achieves both sufficient cell quantity and superior, consistent proliferation and differentiation capacity, resolving the contradiction between amount and reliability.
2Ease of manufacture
If stem cells are derived from fat or bone marrow, then extraction is feasible, but proliferation and differentiation capacity is influenced by donor age and health state
Solution Approach 1:
The invention applies local quality by identifying that the basal portion of the chorionic trophoblast layer possesses unique and superior stem cell properties compared to other placental regions or adult tissues. This specific regional selection ensures consistent, high-quality stem cells with excellent proliferation and differentiation capacity that is not influenced by donor age or health state, while maintaining ease of extraction from placental tissue.
3Adaptability or versatility
If embryonic stem cells are used, then ability to generate all organs through proliferation and differentiation is achieved, but ethical issues limit their use as cellular therapeutic agents
Solution Approach 1:
The invention uses placental tissue, which is a discarded byproduct after parturition, as the source of stem cells. This approach eliminates ethical concerns associated with embryonic stem cells while providing cells with excellent proliferation and differentiation capacity. The placenta serves as a readily available, ethically acceptable alternative that can be processed into therapeutic stem cell products without the moral controversies surrounding embryonic tissue usage.
Data Source
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AI summary
The present disclosure relates to stem cells derived from the basal portion of the chorionic trophoblast layer (bCT), which is a part of the issues of the placenta, and cell therapy comprising same. Stem cells derived from the basal portion of the chorionic trophoblast layer according to the present invention exhibit uniform growth characteristic, and superb proliferation and differentiation characteristic as compared with the conventional stem cells derived from the full placenta or other tissues, and exhibit excellent tissue regeneration effect in an animal model, thus can be effectively used in cell therapy.