Developing Hybrid Polymer Scaffolds Using Peptide Modified Biopolymers for Cell Implantation
Polymeric scaffolds containing biomimics offer exciting therapies with broad potential impact for cellular therapies and thereby potentially improve success rates. Here we report the designing and fabrication of a hybrid scaffold that can prevent a foreign body reaction and maintain cell viability....
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Published in | ACS biomaterials science & engineering Vol. 3; no. 10; pp. 2215 - 2222 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
United States
American Chemical Society
09.10.2017
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Subjects | |
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Abstract | Polymeric scaffolds containing biomimics offer exciting therapies with broad potential impact for cellular therapies and thereby potentially improve success rates. Here we report the designing and fabrication of a hybrid scaffold that can prevent a foreign body reaction and maintain cell viability. A biodegradable acrylic based cross-linkable polycaprolactone based polymer was developed and using a multihead electrospinning station to fabricate hybrid scaffolds. This consists of cell growth factor mimics and factors to prevent a foreign body reaction. Transplantation studies were performed subcutaneously and in epididymal fat pad of immuno-competent Balb/c mice and immuno-suppressed B6 Rag1 mice and we demonstrated extensive neo-vascularization and maintenance of islet cell viability in subcutaneously implanted neonatal porcine islet cells for up to 20 weeks of post-transplant. This novel approach for cell transplantation can improve the revascularization and allow the integration of bioactive molecules such as cell adhesion molecules, growth factors, etc. |
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AbstractList | Polymeric scaffolds containing biomimics offer exciting therapies with broad potential impact for cellular therapies and thereby potentially improve success rates. Here we report the designing and fabrication of a hybrid scaffold that can prevent a foreign body reaction and maintain cell viability. A biodegradable acrylic based cross-linkable polycaprolactone based polymer was developed and using a multihead electrospinning station to fabricate hybrid scaffolds. This consists of cell growth factor mimics and factors to prevent a foreign body reaction. Transplantation studies were performed subcutaneously and in epididymal fat pad of immuno-competent Balb/c mice and immuno-suppressed B6 Rag1 mice and we demonstrated extensive neo-vascularization and maintenance of islet cell viability in subcutaneously implanted neonatal porcine islet cells for up to 20 weeks of post-transplant. This novel approach for cell transplantation can improve the revascularization and allow the integration of bioactive molecules such as cell adhesion molecules, growth factors, etc. |
Author | Salama, Bassem Kuppan, Purushothaman Raj, Shammy Abraham, Sinoj Montemagno, Carlo D Korbutt, Gregory S |
AuthorAffiliation | National Institute for Nanotechnology Department of Chemical and Materials Engineering IngenuityLab Alberta Diabetes Institute, Department of Surgery |
AuthorAffiliation_xml | – name: Department of Chemical and Materials Engineering – name: – name: Alberta Diabetes Institute, Department of Surgery – name: IngenuityLab – name: National Institute for Nanotechnology |
Author_xml | – sequence: 1 givenname: Sinoj orcidid: 0000-0001-7501-6144 surname: Abraham fullname: Abraham, Sinoj email: sinoj@ualberta.ca organization: National Institute for Nanotechnology – sequence: 2 givenname: Purushothaman surname: Kuppan fullname: Kuppan, Purushothaman – sequence: 3 givenname: Shammy surname: Raj fullname: Raj, Shammy organization: National Institute for Nanotechnology – sequence: 4 givenname: Bassem surname: Salama fullname: Salama, Bassem – sequence: 5 givenname: Gregory S surname: Korbutt fullname: Korbutt, Gregory S email: korbutt@ualberta.ca – sequence: 6 givenname: Carlo D surname: Montemagno fullname: Montemagno, Carlo D email: montemag@ualberta.ca organization: National Institute for Nanotechnology |
BackLink | https://www.ncbi.nlm.nih.gov/pubmed/33445280$$D View this record in MEDLINE/PubMed |
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