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Growth of Cartilage and Bone Tissue

Growth of Cartilage and Bone Tissue

Chondrocytes form a temporary cartilaginous model by dividing and secreting a thick gel-like extracellular matrix. Once the chondrocytes undergo programmed cell death, osteoblasts enter the site of the cartilaginous model. The process of replacing the temporary cartilaginous model with bone in an ordered manner is called endochondral ossification. In endochondral ossification, not all of the cartilage is replaced by bone tissue. Some cartilage that performs a protective and supportive function...

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Unlike epithelial tissue, which is composed of cells closely packed with little or no extracellular space in between, connective tissue cells are dispersed in a matrix. This extracellular matrix (ECM) is composed of fibrous proteins like collagen, elastin, and fibronectin in a ground substance consisting of interstitial fluid, cell adhesion proteins, and proteoglycans. The proteoglycans form a gel-like material in the spaces between cells and provide hydration, buffering, binding, and force...

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Updated: May 25, 2026

Fabrication of Decellularized Cartilage-derived Matrix Scaffolds

Fabrication of Decellularized Cartilage-derived Matrix Scaffolds

Published on: January 7, 2019

Oriented cartilage extracellular matrix-derived scaffold for cartilage tissue engineering.

Shuaijun Jia¹, Lie Liu, Weimin Pan

¹Institute of Orthopaedics, Xijing Hospital, The Fourth Military Medical University, Xi'an 710032, China.

Journal of Bioscience and Bioengineering

|January 24, 2012

Summary

Oriented extracellular matrix (ECM)-derived scaffolds improve cartilage tissue engineering by mimicking native cartilage structure. This enhancement leads to superior mechanical properties in engineered cartilage, offering a promising regenerative approach.

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Fabrication of Decellularized Cartilage-derived Matrix Scaffolds

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3D Hydrogel Scaffolds for Articular Chondrocyte Culture and Cartilage Generation

3D Hydrogel Scaffolds for Articular Chondrocyte Culture and Cartilage Generation

Published on: October 7, 2015

Area of Science:

Biomaterials Science
Tissue Engineering
Orthopedics

Background:

Native articular cartilage possesses an oriented structure crucial for its mechanical function.
Mimicking this native architecture is essential for developing effective cartilage tissue engineering scaffolds.

Purpose of the Study:

To fabricate an oriented extracellular matrix (ECM)-derived scaffold.
To evaluate the impact of scaffold orientation on chondrogenic-induced bone mesenchymal stem cell differentiation and engineered cartilage biomechanics.

Main Methods:

Fabrication of oriented ECM-derived scaffolds with parallel microtubules.
Seeding scaffolds with chondrogenic-induced bone mesenchymal stem cells (bMSCs).
Subcutaneous implantation in nude mice and analysis at 4 weeks (histology, biochemical assays, mechanical testing).

Main Results:

Oriented scaffolds exhibited significantly higher mechanical properties than non-oriented ones.
Histological analysis revealed aligned chondrocyte-like cells and collagen fibers in oriented constructs.
Tissue-engineered cartilage in oriented scaffolds achieved 42.9% of native cartilage Young's modulus, compared to 23.0% in non-oriented scaffolds.

Conclusions:

Oriented ECM-derived scaffolds enhance the biomechanical properties of engineered cartilage.
The aligned structure promotes better cell organization and matrix deposition.
These scaffolds represent a promising strategy for advancing cartilage tissue engineering.