Wound Healing Peptides Stimulate Cell Migration
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Solution Overview
Problem
Chronic wounds, such as those found in diabetes patients or those with venous stasis disease, often remain in an inflamed state and fail to heal due to impaired epithelial and vascular healing mechanisms, necessitating new biomolecules to enhance wound healing processes.
Innovation Solution
Administration of specific peptides, such as those with amino acid sequences listed in SEQ ID NOs: 1-13, which stimulate keratinocyte and endothelial cell migration, re-epithelialization, and angiogenesis, potentially combined with other agents like growth factors or enzymes, to promote wound healing in both acute and chronic wounds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional wound healing approaches are used, then acute wounds can heal through normal inflammatory and proliferative phases, but chronic wounds remain trapped in an inflamed state and fail to progress to tissue remodeling
Solution Approach 1:
The patent applies parameter changes by modifying the biochemical environment of chronic wounds through peptide administration. The peptides (e.g., DINECEIGAPAGE, DINECEIGAPAGEETEV) change the molecular parameters of the wound bed by binding to receptors and triggering intracellular signaling cascades, thereby transforming the wound from a stalled inflammatory state to an active proliferative state capable of progressing through normal healing phases.
Solution Approach 2:
The patent uses peptides as intermediary molecules to bridge the gap between the inflamed wound state and the proliferative healing phase. These peptides act as mediators that bind to cell surface receptors on keratinocytes, fibroblasts, and endothelial cells, translating inflammatory signals into proliferative and migratory responses that drive wound closure and tissue regeneration.
2Productivity
If peptide administration is used to stimulate cell migration and proliferation, then wound healing is enhanced, but the complexity of treatment increases
Solution Approach 1:
The patent applies segmentation by using small peptide molecules (e.g., 10-20 amino acids) rather than large protein growth factors. This segmentation into smaller molecular units simplifies production, storage, and administration while retaining the essential bioactive functions needed to stimulate cell migration, proliferation, and wound healing.
Solution Approach 2:
The patent employs short-lived peptide molecules that can be synthesized cost-effectively and administered topically or systemically. These peptides have shorter half-lives than full-length growth factors, reducing the need for complex delivery systems and long-term storage infrastructure, thereby simplifying the overall treatment approach while maintaining therapeutic efficacy.
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 peptides effectively enhance wound healing by increasing cell migration and proliferation, re-initiating granulation tissue formation, and promoting angiogenesis, as demonstrated in in vitro assays, thereby addressing the challenges of non-healing wounds.
Implementation Method 1
enhance the rate of migration of keratinocytes or endothelial cells, or a combination of keratinocytes and endothelial cells, towards a wound edge
Implementation Method 2
administration of the one or more peptides results in an increase in the re-epithelialization of the wound, or an increase in angiogenesis in or near the wound
Data Source
AI summary
The current invention relates to methods and compositions for the treatment of wounds in a mammalian subject. Particularly, the invention relates to novel polypeptides and encoding nucleic acids that stimulate keratinocyte and endothelial cell motility and/or proliferation.