Activator Peptides for Extracellular Matrix Synthesis
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Solution Overview
Problem
Current cosmetic active agents are inadequate in effectively addressing the signs of skin aging, particularly wrinkles, sagging, and skin dehydration, which are associated with the extracellular matrix, and there is a need for new compounds that can delay or combat these issues more effectively.
Innovation Solution
Peptides of a specific general formula (R1-(AA)n-X1-Pro-X2-Gly-Pro-X3-(AA)p-R2) that activate the expression of extracellular matrix proteins, such as type I and III collagens, fibronectin, and hyaluronic acid, reducing fibroblast senescence and used in cosmetic compositions for topical application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional cosmetic active agents are used, then skin care is provided, but they are inadequate in effectively addressing signs of skin aging such as wrinkles, sagging, and dehydration
Solution Approach 1:
The patent modifies the known GPWGPP peptide sequence by systematically varying parameters including: amino acid substitutions at specific positions (X1, X2, X3, X4), chain length variations (n and p values from 0 to 2), and terminal group modifications (R1 and R2 groups). This creates a library of analogs with optimized activities for stimulating collagen, fibronectin, and hyaluronic acid synthesis while reducing fibroblast senescence.
Solution Approach 2:
The invention develops composite peptide structures combining glycine-proline-rich sequences with various amino acid residues and terminal modifications. These composite structures work synergistically to activate multiple extracellular matrix proteins simultaneously, providing comprehensive anti-aging effects against wrinkles, sagging, and dehydration.
2Reliability
If new peptide compounds are developed to effectively combat skin aging, then effectiveness increases, but the complexity of identifying and characterizing optimal sequences increases
Solution Approach 1:
The peptide optimization process is segmented into systematic variations of specific positions (X1, X2, X3, X4) and parameters (n, p, R1, R2) within the general formula. This modular approach allows independent optimization of each segment to achieve desired biological activities without requiring complete redesign of the entire peptide structure.
Solution Approach 2:
The patent establishes a systematic parameter space for peptide optimization with defined ranges: n and p integers from 0 to 2, specific amino acid options for each X position, and defined terminal group modifications. This structured parameter exploration reduces the complexity of sequence optimization by providing clear guidelines for generating effective variants.
Data Source
AI summary
The present invention relates to novel activator peptides for synthesizing extracellular matrix proteins in the skin. The present invention also relates to a cosmetic composition including such peptides as an active agent, and to the use of such a composition for increasing the expression of the proteins of the extracellular matrix, delaying the appearance of or reducing wrinkles, sagging, and the loss of skin volume and the dehydration of the skin. Finally, the invention relates to cosmetic care methods for delaying or treating the signs of skin aging and photoaging.