期刊
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART A
卷 103, 期 2, 页码 846-859出版社
WILEY
DOI: 10.1002/jbm.a.35205
关键词
microencapsulation; microsphere; microcapsule; synthetic polymer; cell therapy
The encapsulation of cells into polymeric microspheres or microcapsules has permitted the transplantation of cells into human and animal subjects without the need for immunosuppressants. Cell-based therapies use donor cells to provide sustained release of a therapeutic product, such as insulin, and have shown promise in treating a variety of diseases. Immunoisolation of these cells via microencapsulation is a hotly investigated field, and the preferred material of choice has been alginate, a natural polymer derived from seaweed due to its gelling conditions. Although many natural polymers tend to gel in conditions favorable to mammalian cell encapsulation, there remain challenges such as batch to batch variability and residual components from the original source that can lead to an immune response when implanted into a recipient. Synthetic materials have the potential to avoid these issues; however, historically they have required harsh polymerization conditions that are not favorable to mammalian cells. As research into microencapsulation grows, more investigators are exploring methods to microencapsulate cells into synthetic polymers. This review describes a variety of synthetic polymers used to microencapsulate cells. (C) 2014 The Authors. Journal of Biomedical Materials Research Part A Published by Wiley Periodicals, Inc.: 103A: 846-859, 2015.
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