Related Experiment Video
Updated: Aug 7, 2026
09:03
Generating Spheroids from Various Chondrocytes using Low-Adhesive Conditions under Gravity and Homemade Mini-Bioreactors
Published on: January 31, 2025
Generation of chondrocytes from embryonic stem cells
1Department of Molecular Genetics, University of Pittsburgh School of Medicine, PA, USA.
Methods in Molecular Biology (Clifton, N.J.)
|July 19, 2006
Summary
Embryonic stem cells (ES cells) can differentiate into cartilage cells (chondrocytes) when cultured with limb bud cells. This finding offers a new method for producing chondrocytes for osteoarthritis treatment.
Area of Science:
- Stem cell biology
- Developmental biology
- Regenerative medicine
Background:
- Embryonic stem (ES) cells possess pluripotency, differentiating into all germ layers.
- Mechanisms controlling ES cell lineage-restricted differentiation remain unclear.
- Current differentiation models like embryoid bodies have limitations for studying early commitment events.
Purpose of the Study:
- To develop strategies for understanding stem cell differentiation mechanisms.
- To investigate upstream events in stem cell differentiation into specific cell types.
- To establish a model for inducing ES cell differentiation into chondrocytes.
Main Methods:
- Development of a micromass culture system.
- Co-culture of ES cells with limb bud progenitor cells.
- Analysis of cell morphology and expression of cartilage matrix genes (collagen type II, proteoglycans).
Main Results:
- A high percentage of differentiated cells exhibited chondrocyte morphology.
- Differentiated cells expressed key cartilage matrix genes.
- Limb bud progenitor cell signals were sufficient to induce chondrogenic differentiation in ES cells.
Conclusions:
- The micromass culture system effectively induces ES cell differentiation into chondrocytes.
- This system provides insights into the upstream events of stem cell differentiation.
- Quantitative chondrocyte production could benefit osteoarthritis patients.
Related Concept Videos
00:58Embryonic Stem Cells
Embryonic stem (ES) cells are undifferentiated pluripotent cells, meaning they can produce any cell type in the body. This gives them tremendous potential in science and medicine since they can generate specific cell types for use in research or to replace body cells lost due to damage or disease.
00:57Embryonic Stem Cells
Embryonic stem (ES) cells were first discovered in mice in 1981 by Martin Evans. In 1998, James Thomson identified a method to isolate embryonic stem cells from humans. Human embryonic stem cells (hESCs) are obtained from 3-5 day old embryos that remain unused after an in vitro fertilization procedure.
ES cells are grown in a culture medium where they can divide indefinitely, creating ES cell lines. Under certain conditions, ES cells can differentiate, either spontaneously into a variety of...
ES cells are grown in a culture medium where they can divide indefinitely, creating ES cell lines. Under certain conditions, ES cells can differentiate, either spontaneously into a variety of...
01:19Mesenchymal Stem Cells
Mesenchymal stem cells (MSCs) are adult stem cells that can differentiate into most connective tissue cell types, except for hematopoietic cells, depending upon the source of MSCs. For example, bone-marrow-derived MSCs (BM-MSCs) can differentiate into osteocytes, hepatocytes, and pancreatic and neuronal cells. MSCs can be isolated from various sources such as bone marrow, placenta, adipose tissue, teeth, and Wharton’s jelly, a gelatinous substance in the umbilical cord. The ease of their access...