Nucleus Pulposus Progenitor Cell Isolation for Disc Regeneration
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Solution Overview
Problem
Current treatments for intervertebral disc degeneration, such as NSAIDs and invasive surgeries, fail to directly address the degeneration and damage of the nucleus pulposus tissue, leading to long-term side effects and risks, while existing methods do not effectively regenerate or repair the intervertebral disc.
Innovation Solution
A method for isolating and characterizing nucleus pulposus progenitor cells with migratory and anti-inflammatory properties from the nucleus pulposus tissue, involving enzymatic digestion, culturing, and screening using specific genes and proteins, followed by re-implantation to regenerate the intervertebral disc.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If traditional treatment methods (NSAIDs and steroids) are used to alleviate pain and inflammation, then pain relief is achieved, but long-term use causes gastrointestinal issues and adversely affects cellular function
Solution Approach 1:
The patent extracts and isolates nucleus pulposus progenitor cells from the degenerated disc tissue, separating the beneficial regenerative cells from the harmful degenerative environment. These isolated cells are then cultured and implanted back into the disc to promote regeneration, eliminating the need for long-term NSAID/steroid use that causes gastrointestinal and cellular damage.
Solution Approach 2:
The patent utilizes the patient's own nucleus pulposus progenitor cells for treatment, allowing the body's natural regenerative capacity to heal the disc. The cells are isolated from the patient's disc, cultured in vitro, and re-implanted to stimulate self-repair, eliminating dependency on external medications that cause harmful side effects.
2Strength
If intervertebral disc replacement surgery is performed for severe cases, then structural support is restored, but the procedure carries risks and is costly
Solution Approach 1:
The patent performs preliminary isolation and characterization of nucleus pulposus progenitor cells from the patient's disc tissue before the actual treatment. The cells are screened for stem cell characteristics, migratory properties, and anti-inflammatory capabilities in advance, then cultured and ready for implantation. This preliminary preparation reduces procedural complexity and risks during the actual treatment.
Solution Approach 2:
The patent uses nucleus pulposus progenitor cells as an intermediary substance to restore disc function. Instead of directly replacing the entire disc with a mechanical implant, the progenitor cells serve as a biological mediator that promotes natural tissue regeneration, reducing surgical risks and long-term dependency on invasive procedures.
3Stability of the object's composition
If the nucleus pulposus tissue is damaged or degenerated, then the intervertebral disc loses cushioning function, but current treatment methods fail to directly address the degeneration and damage
Solution Approach 1:
The patent extracts nucleus pulposus progenitor cells from the degenerated disc tissue, isolating the regenerative potential from the damaged environment. These cells are then cultured and implanted to directly address and repair the degeneration, providing a targeted treatment that restores tissue integrity rather than merely managing symptoms.
Solution Approach 2:
The patent changes the biological parameters of the disc by introducing progenitor cells with specific characteristics (stem cell markers, migratory properties, anti-inflammatory capabilities). This transforms the degenerative environment into a regenerative one, directly addressing tissue damage and promoting healing rather than merely maintaining structural support.
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 method effectively regenerates and repairs the intervertebral disc by using nucleus pulposus progenitor cells with stem cell characteristics, minimizing immune rejection and improving patient quality of life.
Implementation Method 1
hydrolyzing the tissue blocks with an enzyme; wherein the enzyme used for hydrolyzing the tissue blocks is collagenase, trypsin, or a combination thereof
Data Source
AI summary
The invention primarily relates to a method for isolating and characterizing nucleus pulposus progenitor cells. The method initially involves cutting nucleus pulposus tissue into multiple tissue blocks and then enzymatically digesting these blocks. After digestion, these tissue blocks are cultured in a culture dish. When cells form clusters at the bottom of the dish, specific embryonic stem cell genes (such as Nanog, Oct-4, SOX2) are used to select nucleus pulposus progenitor cells from the clusters. Furthermore, this method employs specific proteins and genetic markers to select nucleus pulposus progenitor cells with mobility and/or mesenchymal stem cell characteristics, as well as to further select cells with anti-inflammatory abilities. Finally, the invention discloses a use of the nucleus pulposus progenitor cells obtained by the method in the manufacture of a pharmaceutical composition for the treatment of lower back pain, offering a new strategy for the treatment of lower back pain.