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Published on: September 28, 2018
Embryoid body formation: recent advances in automated bioreactor technology
Susanne Trettner1, Alexander Seeliger, Nicole I zur Nieden
1Department of Cell Therapy, Applied Stem Cell Technology Unit, Fraunhofer Institute for Cell Therapy and Immunology, Leipzig, Germany.
Methods in Molecular Biology (Clifton, N.J.)
|November 3, 2010
Summary
Automated bioreactors enable reproducible formation of embryoid bodies (EBs) from embryonic stem cells (ESCs) for osteoblast differentiation. This method streamlines EB generation, overcoming limitations of manual techniques like the hanging drop protocol.
Area of Science:
- Stem cell biology
- Biotechnology
- Regenerative medicine
Background:
- Spontaneous differentiation of embryonic stem cells (ESCs) is a challenge in cell expansion.
- Embryoid bodies (EBs) are commonly used to initiate differentiation of ESCs into specialized cell types.
- Current EB formation methods, such as the hanging drop protocol, are laborious and difficult to standardize.
Purpose of the Study:
- To develop an automated and reproducible method for generating embryoid bodies (EBs) using computer-controllable suspension bioreactors.
- To investigate the subsequent differentiation of bioreactor-formed EBs along the osteoblast lineage.
- To compare the differentiation efficiency of cells from bioreactor-formed EBs with those from EBs generated using the hanging drop method.
Main Methods:
- Utilized computer-controllable suspension bioreactors for automated EB formation.
- Initiated osteoblast differentiation of ESCs within the bioreactor-formed EBs.
- Employed the hanging drop protocol for static control EB formation.
- Compared the developmental trajectory of differentiating cells from both methods.
Main Results:
- Demonstrated successful automated and reproducible formation of EBs in suspension bioreactors.
- Achieved differentiation of ESCs along the osteoblast lineage from bioreactor-generated EBs.
- Established a comparative analysis framework for bioreactor vs. hanging drop EB differentiation.
Conclusions:
- Computer-controllable suspension bioreactors offer a highly reproducible and automated approach to EB formation for stem cell differentiation.
- This automated method holds potential for streamlining osteoblast differentiation protocols and other lineage commitments.
- The findings provide a foundation for scalable and standardized stem cell differentiation in research and therapeutic applications.
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