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3D bioprinting of functional islets of Langerhans in an alginate/methylcellulose hydrogel blend.
Adv. Healthc. Mater. 8:e1801631 (2019)
Transplantation of pancreatic islets is a promising strategy to alleviate the unstable blood-glucose control that some patients with diabetes type 1 exhibit and has seen many advances over the years. Protection of transplanted islets from the immune system can be accomplished by encapsulation within a hydrogel, the most investigated of which is alginate. In this study, islet encapsulation is combined with 3D extrusion bioprinting, an additive manufacturing method which enables the fabrication of 3D structures with a precise geometry to produce macroporous hydrogel constructs with embedded islets. Using a plottable hydrogel blend consisting of clinically approved ultrapure alginate and methylcellulose (Alg/MC) enables encapsulating pancreatic islets in macroporous 3D hydrogel constructs of defined geometry while retaining their viability, morphology, and functionality. Diffusion of glucose and insulin in the Alg/MC hydrogel is comparable to diffusion in plain alginate; the embedded islets continuously produce insulin and glucagon throughout the observation and still react to glucose stimulation albeit to a lesser degree than control islets.
Impact Factor
Scopus SNIP
Web of Science
Times Cited
Times Cited
Scopus
Cited By
Cited By
Altmetric
6.270
1.130
42
54
Anmerkungen
Besondere Publikation
Auf Hompepage verbergern
Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Schlagwörter
3d Bioprinting ; Alginate ; Diabetes ; Insulin ; Macroporous ; Pancreatic Islet; Pancreatic-islets; In-vitro; Rat Islets; Nonimmunosuppressed Patients; Insulin-secretion; Beta-cells; Adult-rat; Alginate; Transplantation; Encapsulation
Sprache
englisch
Veröffentlichungsjahr
2019
HGF-Berichtsjahr
2019
ISSN (print) / ISBN
2192-2640
e-ISSN
2192-2659
Zeitschrift
Advanced healthcare materials
Quellenangaben
Band: 8,
Heft: 7,
Artikelnummer: e1801631
Verlag
Wiley
Verlagsort
Weinheim
Begutachtungsstatus
Peer reviewed
Institut(e)
Institute of Pancreatic Islet Research (IPI)
POF Topic(s)
90000 - German Center for Diabetes Research
Forschungsfeld(er)
Helmholtz Diabetes Center
PSP-Element(e)
G-502600-007
WOS ID
WOS:000467973400014
Scopus ID
85062572262
PubMed ID
30835971
Erfassungsdatum
2019-03-22