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Related Concept Videos

Degenerative Disc Disease I: Introduction01:27

Degenerative Disc Disease I: Introduction

Degenerative disc disease is a chronic condition in which intervertebral discs gradually lose structure and function. It is not infectious or autoimmune; rather, it results from age-related biochemical and mechanical changes, influenced by genetic, metabolic, and environmental factors.Structure and Function of DiscsThe spine contains 23 intervertebral discs that absorb load, distribute forces, maintain spacing, and allow flexibility. Each disc consists of a nucleus pulposus, a gel-like core...
Degenerative Disc Disease ll: Pathophysiology01:23

Degenerative Disc Disease ll: Pathophysiology

The symptoms of degenerative disc disease arise from a combination of mechanical compression, vascular compromise, and biochemical inflammation, which together disrupt nerve function and produce pain.Mechanical CompressionDisc degeneration reduces height and elasticity, predisposing to herniation of the nucleus pulposus, a major cause of radicular pain. Herniations may be protrusion (bulging with intact annulus), extrusion (nucleus extends beyond disc but remains connected), or sequestration...

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Related Experiment Video

Updated: Jun 19, 2026

Optical Sectioning and Visualization of the Intervertebral Disc from Embryonic Development to Degeneration
06:22

Optical Sectioning and Visualization of the Intervertebral Disc from Embryonic Development to Degeneration

Published on: July 8, 2021

Cell-seeded polyurethane-fibrin structures--a possible system for intervertebral disc regeneration.

C Mauth1, E Bono, S Haas

  • 1School of Life Sciences and Facility Management, Institute of Chemistry and Biological Chemistry, Campus Reidbach, Einsiedlerstrasse 31, CH-8820 Waedenswil/Zurich, Switzerland.

European Cells & Materials
|October 6, 2009
PubMed
Summary
This summary is machine-generated.

Researchers developed a novel polyurethane scaffold to regenerate intervertebral disc (IVD) tissue. This injectable scaffold supports disc cell growth and matrix production, offering a potential new treatment for degenerated IVD and low back pain.

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A Proinflammatory, Degenerative Organ Culture Model to Simulate Early-Stage Intervertebral Disc Disease.
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A Proinflammatory, Degenerative Organ Culture Model to Simulate Early-Stage Intervertebral Disc Disease.
05:46

A Proinflammatory, Degenerative Organ Culture Model to Simulate Early-Stage Intervertebral Disc Disease.

Published on: February 14, 2021

Area of Science:

  • Biomaterials Science
  • Regenerative Medicine
  • Orthopedics

Background:

  • Intervertebral disc (IVD) degeneration is a primary cause of low back pain, necessitating advanced regenerative treatments.
  • Current treatments for degenerated IVD tissue are limited, driving the need for innovative biological regeneration strategies.
  • Injectable materials for endoscopic implantation are gaining traction for nucleus pulposus (NP) regeneration.

Purpose of the Study:

  • To develop a novel polyurethane (PU) scaffold for cell-based regeneration of degenerated IVD tissue.
  • To evaluate the capacity of the PU scaffold to support autologous IVD-derived cells for NP regeneration.
  • To assess cell adhesion, proliferation, and phenotypic stability within the PU scaffold for potential therapeutic applications.

Main Methods:

  • Development of a mechanically stable PU scaffold in spheroid form for cell encapsulation.
  • Seeding of primary human IVD cells onto PU spheroids and subsequent encapsulation in fibrin hydrogel.
  • Analysis of cell-matrix interactions using gene expression (PCR) and biochemical assays (DNA, collagen, GAG content).

Main Results:

  • Successful seeding and encapsulation of human IVD cells within the PU-fibrin construct.
  • Demonstrated cell proliferation and synthesis of extracellular matrix components, including collagen and glycosaminoglycans (GAG).
  • Confirmed stable mRNA expression of chondrogenic and NP-specific markers, indicating preserved cell phenotype.

Conclusions:

  • The developed PU scaffold serves as a viable carrier for autologous IVD cells, promoting tissue regeneration.
  • This approach shows potential for restoring chondrocyte-like tissue within the NP, mimicking native IVD structure.
  • The study presents a promising alternative medical strategy for treating degenerated IVD tissue compared to existing options.