Improved cartilage repair via injectable modified polymers that target damaged tissues and enhance cellular response
Problem:
Cartilage damage is one of the most common ailments in the aging population. Tissue damage, particularly cartilage damage, can occur due to traumatic injury, degeneration with time, and other soft tissue injuries. The inability of these to heal properly after an injury results in mechanical wear and altered mechanics in adjacent tissues. These degenerative changes leave the tissues vulnerable to damage, often leading to their failure.
Solution:
The invention is a system of modified polymers that target damaged tissues and improve their repair process. The polymer acts by sealing the damaged cartilage and creating an environment that facilitates tissue healing. Current treatments involve application of glues or polymers directly to the injury site but are not living, something that the technology presented here achieves by delivering polymers intraarticularly to specific tissues, recruiting cells and directing their response. This targeting mechanism leads to enhanced and efficient healing. Moreover, the material is also tunable and can promote cartilage formation or anti-inflammatory effects, allowing for a treatment plan that can be customized to the patient’s tissue damage.
Top Figure: Cartilage defects can cause increased fluid flow and loss of matrix proteins, including proteoglycans. This leads to elevated strain levels in the adjacent tissues, leaving tissues susceptible to wear, and ultimately joint-wide OA. Bottom Figure: This technology has the potential to treat damaged tissues. The first option restores fluid flow with a barrier at the focal defect interface and reduces the rate of degeneration. The second option would promote cartilage repair. The third would direct cells to the defect, providing an anti-inflammatory benefit, and improving the healing process. Currently, the proposed technique is option one, or a living fibrous “biosealant’.
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Docket # 18-8501