In vitro study of using calcium phosphate cement as immunoisolative device to enclose insulinoma/agarose microspheres as bioartificial pancreas
Journal
Biotechnology and Bioengineering
Journal Volume
98
Journal Issue
6
Pages
1288-1295
Date Issued
2007
Author(s)
Abstract
In this study, the feasibility of using calcium phosphate cement (CPC) as immunoisolative device to enclose insulinoma/agarose microspheres as bioartificial pancreas was evaluated. We fabricated a chamber by CPC and utilized X-ray diffraction, Scanning electron microscope and Mercury intrusion porosimetry to identify the characters of the CPC chamber. The nominal molecular weight cut-off and cytotoxicity of CPC chamber were also evaluated. An insulinoma cell line (RIN-m5F) was chosen as insulin source and encapsulated in agarose microspheres and then enclosed in preformed CPC chamber. Insulin secretion was analyzed by Enzyme-linked immunosorbant assay to evaluate the function of insulinoma enclosed in CPC chamber. Results showed that the CPC chamber was non-cytotoxicity to insulinoma and can block the penetration of molecules which molecular weight larger than 12.4 kDa. Insulinoma inside the CPC chamber can secrete insulin in stable level for 30 days. This study indicated that we may use CPC as immunoisolative material to enclose insulinoma/agarose microspheres as bioartificial pancreas. ? 2007 Wiley Periodicals, Inc.
SDGs
Other Subjects
Calcium phosphate; Cytotoxicity; Molecular weight; Porosimeters; Scanning electron microscopy; X ray diffraction; Bioartificial pancreas; Calcium phosphate cement; Cell therapy; Immunoisolation; Bone cement; agarose; beta galactosidase; calcium phosphate ceramic; article; bioartificial organ; cancer cell culture; controlled study; cytotoxicity; encapsulation; enzyme linked immunosorbent assay; human; human cell; in vitro study; insulin release; insulinoma; molecular weight; porosity; scanning electrochemical microscopy; X ray diffraction; Animals; Biomechanics; Calcium Phosphates; Cell Line; Equipment Design; Feasibility Studies; Insulin; Insulinoma; Materials Testing; Microscopy, Electron, Scanning; Microspheres; Pancreas, Artificial; Rats; Sepharose
Type
journal article