Senescent Cell Composition for Wound Healing
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Solution Overview
Problem
Existing biologically active products for wound treatment, particularly those using keratinocytes, are complex to produce, cumbersome to apply, and do not provide an optimal cocktail of factors for efficient wound healing, leading to suboptimal tissue regeneration and inflammatory condition management.
Innovation Solution
A composition comprising a high percentage of senescent cells, such as keratinocytes, which are cultured in vitro and induced to express a specific secretory phenotype, providing a potent cocktail of biologically active molecules for tissue regeneration and wound healing, including IL-8, VEGF, endothelin, MMPs, and TIMPs, formulated into a user-friendly carrier like a wound dressing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If proliferating keratinocytes are used for wound treatment, then tissue regeneration capability is improved, but product complexity and application difficulty increase
Solution Approach 1:
The patent changes the key parameter from cell proliferation state to senescence state. Senescent cells are used instead of proliferating cells, fundamentally altering the biological parameter while maintaining therapeutic effectiveness through secreted factors rather than cell division.
Solution Approach 2:
The patent extracts the beneficial secretory function from the cell and separates it from the problematic cell proliferation and complexity. By using senescent cells that have stopped dividing but continue to secrete therapeutic factors, the invention isolates the useful aspect while eliminating the unwanted complexity.
2Reliability
If complex cell compositions are used to provide optimal biologically active factors, then wound healing effectiveness is improved, but ease of application and storage deteriorates
Solution Approach 1:
The patent changes the functional state parameter of the cells from proliferating to senescent, which fundamentally alters their behavior. Senescent cells provide a stable, non-proliferating state that is easier to control and apply, while maintaining effective secretion of biologically active factors for wound healing.
3Ease of operation
If senescent cells are used in the composition, then ease of application and storage is improved, but the ability to stimulate tissue regeneration through proliferation is reduced
Solution Approach 1:
The patent converts the traditionally harmful or unwanted senescence state into a beneficial therapeutic tool. Instead of viewing senescent cells as depleted or non-functional, the invention harnesses their secretory activity to deliver therapeutic factors that promote wound healing, effectively converting a negative biological state into a positive therapeutic mechanism.
Solution Approach 2:
The patent uses senescent cells as intermediaries that deliver therapeutic factors to the wound site without requiring proliferation. The cells act as a mediator that releases biologically active substances (SASP factors) which then stimulate the body's own healing processes, bypassing the need for cell division while maintaining regenerative capability.
Data Source
AI summary
The present invention relates to in vitro cultured senescent cells, such as epithelial cells, keratinocytes and/or fibroblasts as well as their use in the treatment of tissue regeneration, particularly for the treatment of wounds such as burns or ulcers or the treatment of inflammatory conditions. Optionally, products may be used in combination with further drugs including antimicrobial or antidiabetic agents.