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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...
Herniated Intervertebral Disc l: Introduction01:29

Herniated Intervertebral Disc l: Introduction

Intervertebral disc herniation refers to the displacement of the nucleus pulposus (the gel-like inner core of the disc) through a tear or weakened area in the annulus fibrosus (the outer fibrous ring). The displaced disc material extends beyond the normal boundaries of the disc space and may compress or irritate nearby spinal nerve roots or, less commonly, the spinal cord.Etiology and Risk FactorsHerniation commonly results from degeneration, in which aging reduces disc hydration and...
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...
Stem Cell Therapy for Tissue Regeneration01:21

Stem Cell Therapy for Tissue Regeneration

Stem cell therapy is a method used in regenerative medicine to repair and restore function to damaged tissues and organs. Stem cells have the potential to proliferate and differentiate into various tissue types, making them ideal candidates for tissue regeneration. For example, hematopoietic stem cell transplants are commonly used in blood cancer treatment to replenish damaged bone marrow and restore healthy blood cells.
Types of Stem Cells used in Stem Cell Therapy
The two main cell types that...

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Related Experiment Video

Updated: Jun 21, 2026

Synthesis of Thermogelling Poly(N-isopropylacrylamide)-graft-chondroitin Sulfate Composites with Alginate Microparticles for Tissue Engineering
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Synthesis of Thermogelling Poly(N-isopropylacrylamide)-graft-chondroitin Sulfate Composites with Alginate Microparticles for Tissue Engineering

Published on: October 26, 2016

Nucleus pulposus tissue engineering: a brief review.

Xinlin Yang1, Xudong Li

  • 1Department of Orthopaedic Surgery, University of Virginia School of Medicine, Charlottesville, VA 22908, USA. xy3c@virginia.edu

European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society
|July 16, 2009
PubMed
Summary

Tissue engineering offers a promising solution for intervertebral disc degeneration. Combining adipose-derived stem cells (ADSCs) with GDF-5 and heparin-functionalized scaffolds may advance nucleus pulposus regeneration.

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Area of Science:

  • Regenerative Medicine
  • Biomaterials Science
  • Spinal Surgery

Background:

  • Symptomatic intervertebral disc degeneration significantly impacts quality of life and incurs substantial costs.
  • Tissue engineering presents a viable strategy for restoring degenerative intervertebral disc function.
  • Focus on nucleus pulposus (NP) regeneration is critical as degeneration often initiates in this region.

Purpose of the Study:

  • To review the current state of tissue engineering for intervertebral disc repair.
  • To highlight recent advancements, particularly concerning adipose-derived stem cells (ADSCs), growth and differentiation factor-5 (GDF-5), and scaffold modifications.
  • To propose a combinatorial approach for enhanced NP tissue engineering.

Main Methods:

  • Review of existing literature on intervertebral disc tissue engineering.
  • Focus on specific components: seed cells (ADSCs), signaling molecules (GDF-5), and biomaterial scaffolds (heparin functionalization).
  • Exploration of injectable hydrogel systems for scaffold delivery.

Main Results:

  • Significant progress has been made in NP tissue engineering over the last decade.
  • Adipose-derived stem cells (ADSCs) show potential as a cell source.
  • Growth and differentiation factor-5 (GDF-5) and heparin functionalization are key signaling and scaffold modification strategies.

Conclusions:

  • Addressing challenges in seed cells, signals, and scaffolds is crucial for clinical translation.
  • A combination of ADSCs, GDF-5, heparin-functionalized scaffolds, and injectable hydrogels is proposed as a promising strategy for NP tissue engineering.
  • This combinatorial approach holds potential for effectively treating intervertebral disc degeneration.