Complement Permeability in Bio-Artificial Endocrine Pancreas Using a Diffusion Chamber
Immunoisolation is a potentially important approach to transplanting islets without any immunosuppressive therapy. This study was designed to investigate whether complement penetrates into the diffusion chamber that we developed for a bioartificial endocrine pancreas (Bio-AEP). The results showed th...
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Published in | Cell transplantation Vol. 7 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
SAGE Publishing
01.07.1998
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Online Access | Get full text |
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Summary: | Immunoisolation is a potentially important approach to transplanting islets without any immunosuppressive therapy. This study was designed to investigate whether complement penetrates into the diffusion chamber that we developed for a bioartificial endocrine pancreas (Bio-AEP). The results showed that within 12–24 h, when a Nuclepore membrane (Nuclepore Corp., California) was the sole barrier, complement permeated 100%. However, the Nuclepore membrane used together with a mixed matrix prevented complement penetration. Also, the complement become inactivated during penetration through both the mixed matrix and the Nuclepore membrane with a pore size of 0.1 μm. In conclusion, immunoisolation of cells by a mixed matrix and a Nuclepore membrane of 0.1 μm pore size is a particularly effective method for transplanting xenogeneic cells. Thus, the clinical application of our Bio-AEP shows promise for long-term xenotransplantation without an immunosuppressant. |
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ISSN: | 0963-6897 1555-3892 |
DOI: | 10.1177/096368979800700410 |