Liver Stem Cell Conditioned Medium for Tumor Treatment
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Solution Overview
Problem
Current therapeutic approaches using embryonic stem cells for cancer treatment are hindered by ethical concerns, uncontrolled proliferation, and immune reactions, while adult stem cell preparations may cause immune reactions or have cancer potential, limiting their effectiveness in tumor treatment.
Innovation Solution
The use of conditioned medium derived from non-oval liver stem cells, which are capable of differentiating into multiple cell types, is employed to inhibit tumor growth and proliferation through the secretion of proteins and biomolecules, offering a cell-free or cell-based therapeutic option for tumor diseases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If embryonic stem cells are used for cancer treatment, then anti-tumor activity is improved, but ethical concerns and uncontrolled proliferation occur
Solution Approach 1:
The invention extracts and utilizes only the beneficial secreted factors (conditioned medium) from stem cells while excluding the harmful aspects (uncontrolled proliferation and ethical issues). The conditioned medium contains anti-tumor proteins and biomolecules that can be applied therapeutically without the risks associated with live stem cell transplantation.
Solution Approach 2:
The conditioned medium acts as an intermediary that transfers the anti-tumor effects of stem cells without requiring direct cell contact. The secreted factors serve as mediators that convey therapeutic benefits while avoiding the harmful interactions and uncontrolled behavior of live embryonic stem cells.
2Object-affected harmful factors
If adult stem cells are used for therapy, then immune reactions and cancer potential are reduced, but anti-tumor effectiveness is limited
Solution Approach 1:
The invention changes the source of the conditioned medium from adult stem cells to non-oval liver stem/progenitor cells. This parameter change results in conditioned medium with enhanced anti-tumor activity while maintaining the safety profile of adult-derived cells, as the liver stem cells secrete more potent anti-tumor factors.
3Reliability
If non-oval liver stem cells are used directly, then anti-tumor activity is improved, but immune reactions may occur
Solution Approach 1:
The invention extracts only the secreted factors (conditioned medium) from the non-oval liver stem cells, separating the therapeutic anti-tumor components from the cells themselves. This eliminates immune reactions to cell surface antigens while preserving the anti-tumor efficacy of the secreted proteins and biomolecules.
Data Source
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AI summary
The invention is in the field of therapeutic treatment of tumours. It has been found that the conditioned medium resulting from culturing an adult stem cell capable of differentiating into a plurality of differentiated cell types in a liquid cell culture medium and/or the adult stem cell from which the conditioned medium is obtainable, exert a remarkable anti-tumour effect. The adult stem cell derived conditioned medium preferred in this therapeutic application is a cell free conditioned medium derived from a human liver stem cell (HLSC-CM).