“…[71,72] Reports are beginning to emerge with the transplantation of hPSC-derived immature beta cells on microporous PLGA and PLLA scaffolds, but thus far have only reported some beta cell maturation in vivo and a short rescue of normoglycemia in diabetic mice. [70,73,74] Acinar and ductal organoids…”
Human organoid models recapitulate many aspects of the complex composition and function of native organs. One of the main challenges in developing these models is the growth and maintenance of three-dimensional tissue structures and proper cellular organization that enable function. Biomaterials play an important role by providing a defined and tunable three-dimensional environment that is required for complex cellular organization and organoid growth in vitro or in vivo. This review summarizes organoids of the respiratory and digestive system, and the use of biomaterials to improve upon these model systems.
“…[71,72] Reports are beginning to emerge with the transplantation of hPSC-derived immature beta cells on microporous PLGA and PLLA scaffolds, but thus far have only reported some beta cell maturation in vivo and a short rescue of normoglycemia in diabetic mice. [70,73,74] Acinar and ductal organoids…”
Human organoid models recapitulate many aspects of the complex composition and function of native organs. One of the main challenges in developing these models is the growth and maintenance of three-dimensional tissue structures and proper cellular organization that enable function. Biomaterials play an important role by providing a defined and tunable three-dimensional environment that is required for complex cellular organization and organoid growth in vitro or in vivo. This review summarizes organoids of the respiratory and digestive system, and the use of biomaterials to improve upon these model systems.
“…Several novel strategies to ameliorate hypoxia in encapsulated cells including the use of oxygen-generating chemicals [polydimethylsiloxane (PDMS)--encapsulated solid calcium peroxide] [151], co-encapsulation with photosynthetically-active microorganisms (Synechococcus lividus) [152] and implantable devices fitted with access ports to enable direct O2 delivery -the β-Air device [153] -are all being evaluated.…”
Section: Advances and Recent Updates In Encapsulation Technologiesmentioning
“…Scaffolds should provide an initial support for the islet grafts during the early post transplant period, enabling the development of a capillary bed and recovery of extracellular matrix interactions (Stock & Vacanti, 2009). Polymers such as polylactic acid, polyglycolic acid, polylactide-copolyglycolide (PLGA) (Mao et al, 2009), polyvinyl alcohol -polycaprolactone (Mohan et al, 2010) were extensively used for scaffold fabrication purpose for the tissue engineering of various tissues.…”
Section: Tissue Engineering Based Strategiesmentioning
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