ECM Peptide-Conjugated Polymer Scaffold for Cardiac Tissue Repair
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Solution Overview
Problem
Current treatments for organ or tissue injury, such as cardiovascular disease, are limited by availability, invasiveness, and inefficacy in reversing disease progression, with existing therapies failing to effectively address the underlying molecular and cellular responses leading to heart failure.
Innovation Solution
The development of compositions comprising carboxymethylcellulose conjugated to extracellular matrix-derived peptides and methylcellulose, which provide structural and geometric support to injured tissues, enhancing cell attachment, angiogenesis, and tissue repair by immobilizing ECM-derived peptides onto a thermo-reversible polymer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If organ transplantation is performed to treat tissue injury, then tissue replacement is achieved, but donor availability is limited and tissue rejection complications occur
Solution Approach 1:
The patent uses an extracellular matrix (ECM) peptide-conjugated polymer composition as an intermediary material that mimics the natural tissue environment. This biomimetic scaffold serves as a mediator between the host tissue and the need for functional replacement, eliminating the need for donor organs while providing structural and biochemical support for tissue regeneration.
Solution Approach 2:
The invention enables the body's own cells to perform the regenerative function. By providing an ECM-peptide conjugated polymer scaffold, the treatment activates the body's intrinsic repair mechanisms, allowing autologous tissue regeneration without requiring donor tissues or immune-compatible transplants.
2Shape
If surgical reconstruction is performed to repair injured tissue, then structural restoration is achieved, but the procedure is costly, highly invasive, and not always effective
Solution Approach 1:
The patent changes the physical and biochemical parameters of the treatment by using a polymer composition with specific properties (ECM-peptide conjugation, thermoreversibility, porosity) that can be delivered minimally invasively. This transforms the treatment from major surgery to a less invasive procedure while achieving comparable or superior structural restoration.
Solution Approach 2:
The invention uses a composite polymer material combining carboxymethylcellulose or hydroxypropylcellulose with ECM-derived peptides. This composite provides both the structural integrity needed for tissue restoration and the biochemical signals for cell attachment and regeneration, eliminating the need for complex surgical reconstruction.
3Reliability
If mechanical devices are used to replace organ function, then organ function support is achieved, but functional replacement is incomplete
Solution Approach 1:
Rather than attempting to replace entire organ functions with complex mechanical devices, the patent segments the problem by providing a localized scaffold that restores specific tissue architecture and function. The ECM-peptide conjugated polymer addresses the fundamental tissue-level deficits that underlie organ dysfunction, enabling more complete and physiologically appropriate functional restoration.
4Reliability
If drug therapy is administered to treat tissue injury, then pharmacological treatment is provided, but maintaining therapeutic concentration levels in vivo is difficult
Solution Approach 1:
The ECM-peptide conjugated polymer acts as an intermediary carrier that delivers therapeutic agents directly to the injured tissue site. This localized delivery mechanism maintains stable therapeutic concentrations at the target site without requiring high systemic doses, overcoming the limitations of conventional drug administration.
5Reliability
If tissue engineering is performed to regenerate injured tissue, then tissue regeneration is achieved, but size limitations require assembly in vitro followed by surgical implantation
Solution Approach 1:
The patent changes the key parameter of scaffold size applicability by using an injectable polymer composition that can form appropriate-sized constructs in situ. This eliminates the need for large-scale in vitro assembly and surgical implantation, allowing tissue engineering principles to be applied to larger tissue defects through minimally invasive delivery.
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
These compositions improve cardiac function, reduce infarct size, and promote neovascularization, leading to restored LV geometry and function in chronic myocardial infarction models, offering a minimally invasive approach for tissue repair and regeneration.
Implementation Method 1
compositions comprising carboxymethylcellulose conjugated to extracellular matrix-derived peptides and methylcellulose, which provide structural and geometric support to injured tissues
Implementation Method 2
enhancing cell attachment, angiogenesis, and tissue repair by immobilizing ECM-derived peptides onto a thermo-reversible polymer
Data Source
AI summary
Provided are compositions for repairing an injured tissue. The composition includes carboxymethylcellulose conjugated to an extracellular matrix derived peptide, and a methylcellulose. Also provided are kits and methods for using the subject compositions.