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Alginate-Poly(ethylene glycol) Hybrid Microspheres for Primary Cell Microencapsulation
Redouan Mahou1, Raphael P H Meier2, Léo H Bühler3
1Institut d'Ingénierie Biologique et Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne, EPFL-SV-IBI-LMRP, Station 15, Lausanne CH-1015, Switzerland. redouan.mahou@epfl.ch.
Materials (Basel, Switzerland)
|August 10, 2017
Summary
This study introduces novel alginate-poly(ethylene glycol) hybrid microspheres (alg-PEG-M) for cell encapsulation. These biocompatible microspheres effectively maintain cell viability and proliferation, paving the way for advanced cell therapies.
Area of Science:
- Biomaterials Science
- Regenerative Medicine
- Cell Encapsulation Technology
Background:
- Effective cell transplantation therapies require high-quality, biocompatible encapsulating materials.
- Current microencapsulation methods must be simple and preserve cell viability.
- Alginate-poly(ethylene glycol) hybrid microspheres (alg-PEG-M) offer a promising solution.
Purpose of the Study:
- To develop and assess novel alginate-poly(ethylene glycol) hybrid microspheres (alg-PEG-M) for primary cell microencapsulation.
- To evaluate the biocompatibility and cell-supporting properties of alg-PEG-M.
- To confirm the suitability of EDX cells as a model for microencapsulation studies.
Main Methods:
- Hybrid microspheres (alg-PEG-M) were created using a one-step process combining ionotropic gelation of sodium alginate with covalent crosslinking of poly(ethylene glycol).
- Primary human foreskin fibroblasts (EDX cells) were used to test the feasibility of cell microencapsulation.
- The impact of using cell culture media on microsphere properties and cell viability was assessed.
Main Results:
- The one-step alg-PEG-M formation process successfully created stable hybrid microspheres.
- Microencapsulated EDX cells demonstrated maintained viability and significant proliferation.
- Cell culture media did not adversely affect alg-PEG-M properties or cell health.
Conclusions:
- Alginate-poly(ethylene glycol) hybrid microspheres (alg-PEG-M) are feasible for primary cell microencapsulation.
- This novel microsphere system supports cell viability and proliferation, suitable for therapeutic applications.
- EDX cells are confirmed as a reliable model for evaluating cell microencapsulation techniques.
