Venom-Based Peptide Culture Media for Embryonic Stem Cell Self-Renewal
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Solution Overview
Problem
Human embryonic stem cells require extremely high regeneration conditions to maintain pluripotency for regenerative medicine and tissue replacement, and the relationship between venom-based peptides and stem cell self-renewal or differentiation has not been well explored.
Innovation Solution
A venom-based peptide with a specific amino acid sequence is developed to promote the self-renewal of human embryonic stem cells, and is incorporated into culture media and formulations to activate TGF and/or FGF signaling pathways, promote FGFR and TGFβ receptor dimerization, and enhance the expression of regulatory factors like OCT4, SOX2, and NANOG.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If human embryonic stem cells are cultured under extremely high regeneration conditions to maintain pluripotency, then the pluripotency is maintained, but the culture conditions become complex and difficult to control
Solution Approach 1:
The patent extracts and identifies specific venom-based peptide components (such as scorpion venom peptides) that can be isolated from complex natural sources. These extracted peptides are then used as defined molecular entities in culture media, replacing the need for complex undefined serum components while maintaining stem cell pluripotency.
Solution Approach 2:
The patent changes the chemical composition parameters of the culture media by incorporating specific venom-based peptides with defined amino acid sequences. This substitution transforms the culture system from using complex, undefined components to using precisely characterized peptide molecules, thereby simplifying control while maintaining reliability.
2Productivity
If venom-based peptides are used to promote stem cell self-renewal, then the self-renewal capability is enhanced, but the mechanism is not well understood and requires exploration
Solution Approach 1:
The patent uses venom-based peptides as intermediary molecules that mediate between the culture environment and stem cell receptors. These peptides act as defined signaling intermediaries that can be studied to understand the mechanisms of stem cell self-renewal, bridging the gap between external stimuli and cellular responses.
Solution Approach 2:
The patent establishes a feedback mechanism where the effects of venom-based peptides on stem cell self-renewal can be measured and used to optimize culture conditions. By monitoring self-renewal markers and adjusting peptide concentrations accordingly, the system learns and adapts to maintain optimal pluripotency maintenance.
Data Source
AI summary
A venom-based peptide and an application thereof, which relate to the technical field of biomolecules. The amino acid sequence of the peptide is represented by formula 1: X1-X2-X3-X4-X5-X6-X7-X8-X9-X10-X11-X12-X13-X14-X15-X16-X17-X18; X1, X5, X6, X9 and X11 are each selected from any one among A, V, L, I, M, F, W and P; X2, X3, X10, X15, X17 and X18 are each selected from any one among G, C, S, T, Y, N and Q; X7 is selected from D or E; X4, X8 and X16 are each selected from any one among K, R and H; and X12, X13 and X14 are each selected from any one among K, R, H, D and E. The peptide has the function of promoting self-renewal of human embryonic stem cells.