Magnetic Retrieval of Encapsulated Beta Cell Transplants from Diabetic Mice Using Dual-Function MRI Visible and Retrievable Microcapsules

© 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 32(2020), 16 vom: 27. Apr., Seite e1904502
1. Verfasser: Delcassian, Derfogail (VerfasserIn)
Weitere Verfasser: Luzhansky, Igor, Spanoudaki, Virginia, Bochenek, Matthew, McGladrigan, Collin, Nguyen, Amy, Norcross, Samuel, Zhu, Yuhan, Shan, Crystal Shuo, Hausser, Reed, Shakesheff, Kevin M, Langer, Robert, Anderson, Daniel G
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2020
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article encapsulated cell therapy islet transplantation magnetic resonance imaging magnetic retrieval nanoparticles Capsules Ferric Compounds ferric oxide 1K09F3G675
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520 |a Encapsulated beta cell transplantation offers a potential cure for a subset of diabetic patients. Once transplanted, beta cell grafts can help to restore glycemic control; however, locating and retrieving cells in the event of graft failure may pose a surgical challenge. Here, a dual-function nanoparticle-loaded hydrogel microcapsule is developed that enables graft retrieval under an applied magnetic field. Additionally, this system facilitates graft localization via magnetic resonance imaging (MRI), and graft isolation from the immune system. Iron oxide nanoparticles encapsulated within alginate hydrogel capsules containing viable islets are transplanted and the in vitro and in vivo retrieval of capsules containing nanoparticles functionalized with various ligands are compared. Capsules containing islets co-encapsulated with COOH-coated nanoparticles restore normal glycemia in immunocompetent diabetic mice for at least 6 weeks, can be visualized using MRI, and are retrievable in a magnetic field. Application of a magnetic field for 90 s via a magnetically assisted retrieval device facilitates rapid retrieval of up to 94% (±3.1%) of the transplant volume 24 h after surgical implantation. This strategy aids monitoring of cell-capsule locations in vivo, facilitates graft removal at the end of the transplant lifetime, and may be applicable to many encapsulated cell transplant systems 
650 4 |a Journal Article 
650 4 |a encapsulated cell therapy 
650 4 |a islet transplantation 
650 4 |a magnetic resonance imaging 
650 4 |a magnetic retrieval 
650 4 |a nanoparticles 
650 7 |a Capsules  |2 NLM 
650 7 |a Ferric Compounds  |2 NLM 
650 7 |a ferric oxide  |2 NLM 
650 7 |a 1K09F3G675  |2 NLM 
700 1 |a Luzhansky, Igor  |e verfasserin  |4 aut 
700 1 |a Spanoudaki, Virginia  |e verfasserin  |4 aut 
700 1 |a Bochenek, Matthew  |e verfasserin  |4 aut 
700 1 |a McGladrigan, Collin  |e verfasserin  |4 aut 
700 1 |a Nguyen, Amy  |e verfasserin  |4 aut 
700 1 |a Norcross, Samuel  |e verfasserin  |4 aut 
700 1 |a Zhu, Yuhan  |e verfasserin  |4 aut 
700 1 |a Shan, Crystal Shuo  |e verfasserin  |4 aut 
700 1 |a Hausser, Reed  |e verfasserin  |4 aut 
700 1 |a Shakesheff, Kevin M  |e verfasserin  |4 aut 
700 1 |a Langer, Robert  |e verfasserin  |4 aut 
700 1 |a Anderson, Daniel G  |e verfasserin  |4 aut 
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