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Article: Vascularized Neural Constructs for ex-vivo Reconstitution of Blood-Brain Barrier Function

TitleVascularized Neural Constructs for ex-vivo Reconstitution of Blood-Brain Barrier Function
Authors
KeywordsTissue engineering
3D printing
Organ on a chip
Blood-brain barrier
Vasculature network
Issue Date2020
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/biomaterials
Citation
Biomaterials, 2020, v. 245, p. article no. 119980 How to Cite?
AbstractEx-vivo blood-brain barrier (BBB) model is of great value for studying brain function and drug development, but it is still challenging to engineer macroscale three-dimensional (3D) tissue constructs to recapitulate physiological and functional aspects of BBB. Here, we describe a delicate 3D vascularized neural constructs for ex-vivo reconstitution of BBB function. The tissue-engineered tissue construct is based on a multicomponent 3D co-culture of four types of cells, which typically exist in the BBB and were spatially defined and organized to mimic the in vivo BBB structure and function. A porous polycaprolactone/poly (d,l-lactide-co-glycolide) (PCL/PLGA) microfluidic perfusion system works as the vasculature network, which was made by freeze-coating a 3D-printed sacrificial template. Endothelial cells were seeded inside the channels of the network to form 3D interconnected blood vessels; while other types of cells, including pericytes, astrocytes, and neurons, were co-cultured in a collagen matrix wrapping the vasculature network to derive a vascularized neural construct that recapitulates in vivo BBB function with great complexity and delicacy. Using this model, we successfully reconstituted BBB function with parameters that are similar to the in vivo condition, and demonstrated the identification of BBB-penetrating therapeutics by examining the molecular delivery to neuronal cells when relevant biologic molecules were applied to the vasculature circulation system of the neural construct.
Persistent Identifierhttp://hdl.handle.net/10722/286352
ISSN
2020 Impact Factor: 12.479
2020 SCImago Journal Rankings: 3.209
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorYue, H-
dc.contributor.authorXie, K-
dc.contributor.authorJi, X-
dc.contributor.authorXu, B-
dc.contributor.authorWang, C-
dc.contributor.authorShi, P-
dc.date.accessioned2020-08-31T07:02:40Z-
dc.date.available2020-08-31T07:02:40Z-
dc.date.issued2020-
dc.identifier.citationBiomaterials, 2020, v. 245, p. article no. 119980-
dc.identifier.issn0142-9612-
dc.identifier.urihttp://hdl.handle.net/10722/286352-
dc.description.abstractEx-vivo blood-brain barrier (BBB) model is of great value for studying brain function and drug development, but it is still challenging to engineer macroscale three-dimensional (3D) tissue constructs to recapitulate physiological and functional aspects of BBB. Here, we describe a delicate 3D vascularized neural constructs for ex-vivo reconstitution of BBB function. The tissue-engineered tissue construct is based on a multicomponent 3D co-culture of four types of cells, which typically exist in the BBB and were spatially defined and organized to mimic the in vivo BBB structure and function. A porous polycaprolactone/poly (d,l-lactide-co-glycolide) (PCL/PLGA) microfluidic perfusion system works as the vasculature network, which was made by freeze-coating a 3D-printed sacrificial template. Endothelial cells were seeded inside the channels of the network to form 3D interconnected blood vessels; while other types of cells, including pericytes, astrocytes, and neurons, were co-cultured in a collagen matrix wrapping the vasculature network to derive a vascularized neural construct that recapitulates in vivo BBB function with great complexity and delicacy. Using this model, we successfully reconstituted BBB function with parameters that are similar to the in vivo condition, and demonstrated the identification of BBB-penetrating therapeutics by examining the molecular delivery to neuronal cells when relevant biologic molecules were applied to the vasculature circulation system of the neural construct.-
dc.languageeng-
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/biomaterials-
dc.relation.ispartofBiomaterials-
dc.subjectTissue engineering-
dc.subject3D printing-
dc.subjectOrgan on a chip-
dc.subjectBlood-brain barrier-
dc.subjectVasculature network-
dc.titleVascularized Neural Constructs for ex-vivo Reconstitution of Blood-Brain Barrier Function-
dc.typeArticle-
dc.identifier.emailYue, H: hbyue@hku.hk-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.biomaterials.2020.119980-
dc.identifier.pmid32229330-
dc.identifier.scopuseid_2-s2.0-85082168617-
dc.identifier.hkuros313375-
dc.identifier.volume245-
dc.identifier.spagearticle no. 119980-
dc.identifier.epagearticle no. 119980-
dc.identifier.isiWOS:000523566800006-
dc.publisher.placeNetherlands-
dc.identifier.issnl0142-9612-

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