Suitability of Polyelectrolyte Shells Modified with Fullerene Derivate for Immunoisolation of Cells. Experimental Study
The polymeric permiselective membranes application for immunoisolation of cells separating the transplanted cells from the host immunological system may eliminate immunosuppressive therapy during transplantation. The suitability of polyelectrolyte modified nanocoatings for immunoisolation
of cells was assessed. The polymeric shells modified with incorporated fullerene derivate were applied for encapsulation of human T-lymphocyte cell line Jurkat or rat pancreatic islets of Langerhans using layer-by-layer technique. Hydroxylated fullerene was incorporated to the polyelectrolyte
shell for hydrophility increase as well as for layer stability improvement. Evaluation with AFM, FTIR, fluorescence microscopy confirmed the nanocoating presence on the encapsulated cells. It was observed that polylysine–polyethyleneimine membrane with incorporated fullerenol allowed
for encapsulated cells functioning in vitro. Membrane conformation applied for encapsulation of pancreatic rat islets allowed for glucose level decline during xenotransplantation into mice. The elaborated nanocoating may be recommended as the possible alternative to the space consuming
microencapsulation for biomedical purposes.
Keywords: CONFORMAL COATING; ENCAPSULATION; IMMUNOISOLATION; JURKAT CELLS; NANOCOATING; POLYELECTROLYTE; RAT PANCREATIC ISLETS; XENOTRANSPLANTATION
Document Type: Research Article
Publication date: 01 December 2012
- Journal of Biomedical Nanotechnology (JBN) is a peer-reviewed multidisciplinary journal providing broad coverage in all research areas focused on the applications of nanotechnology in medicine, drug delivery systems, infectious disease, biomedical sciences, biotechnology, and all other related fields of life sciences.
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