Abstract
The principle of immunoisolation of cells is based on encapsulation of cells in immunoprotective but semipermeable membranes that protect cells from hazardous effects of the host immune system but allows ingress of nutrients and outgress of therapeutic molecules. The technology was introduced in 1933 but has only received its deserved attention for its therapeutic application for three decades now.
In the past decade important advances have been made in creating capsules that provoke minimal or no inflammatory responses. There are however new emerging challenges. These challenges relate to optimal nutrition and oxygen supply as well as standardization and documentation of capsule properties.
It is concluded that the proof of principle of applicability of encapsulated grafts for treatment of human disease has been demonstrated and merits optimism about its clinical potential. Further innovation requires a much more systematic approach in identifying crucial properties of capsules and cellular grafts to allow sound interpretations of the results.
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Acknowledgements
PdV is grateful for financial support from the Dutch Diabetes Foundation and Juvenile Diabetes Research Foundation.
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de Vos, P. (2017). Historical Perspectives and Current Challenges in Cell Microencapsulation. In: Opara, E. (eds) Cell Microencapsulation. Methods in Molecular Biology, vol 1479. Humana Press, New York, NY. https://doi.org/10.1007/978-1-4939-6364-5_1
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