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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Nat+Mater
2016 ; 15
(6
): 669-78
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Biodegradable scaffold with built-in vasculature for organ-on-a-chip engineering
and direct surgical anastomosis
#MMPMID26950595
Zhang B
; Montgomery M
; Chamberlain MD
; Ogawa S
; Korolj A
; Pahnke A
; Wells LA
; Massé S
; Kim J
; Reis L
; Momen A
; Nunes SS
; Wheeler AR
; Nanthakumar K
; Keller G
; Sefton MV
; Radisic M
Nat Mater
2016[Jun]; 15
(6
): 669-78
PMID26950595
show ga
We report the fabrication of a scaffold (hereafter referred to as AngioChip) that
supports the assembly of parenchymal cells on a mechanically tunable matrix
surrounding a perfusable, branched, three-dimensional microchannel network coated
with endothelial cells. The design of AngioChip decouples the material choices
for the engineered vessel network and for cell seeding in the parenchyma,
enabling extensive remodelling while maintaining an open-vessel lumen. The
incorporation of nanopores and micro-holes in the vessel walls enhances
permeability, and permits intercellular crosstalk and extravasation of monocytes
and endothelial cells on biomolecular stimulation. We also show that vascularized
hepatic tissues and cardiac tissues engineered by using AngioChips process
clinically relevant drugs delivered through the vasculature, and that
millimetre-thick cardiac tissues can be engineered in a scalable manner.
Moreover, we demonstrate that AngioChip cardiac tissues implanted with direct
surgical anastomosis to the femoral vessels of rat hindlimbs establish immediate
blood perfusion.