Detailed Information on Publication Record
2021
3D Bioprinting of Engineered Tissue Flaps with Hierarchical Vessel Networks (VesselNet) for Direct Host-To-Implant Perfusion
SZKLANNY, Ariel A., Majd MACHOUR, Idan REDENSKI, Václav CHOCHOLA, Idit GOLDFRACHT et. al.Basic information
Original name
3D Bioprinting of Engineered Tissue Flaps with Hierarchical Vessel Networks (VesselNet) for Direct Host-To-Implant Perfusion
Authors
SZKLANNY, Ariel A., Majd MACHOUR, Idan REDENSKI, Václav CHOCHOLA (203 Czech Republic, belonging to the institution), Idit GOLDFRACHT, Ben KAPLAN, Mark EPSHTEIN, Haneen Simaan YAMEEN, Uri MERDLER, Adam FEINBERG, Dror SELIKTAR, Netanel KORIN, Josef JAROŠ (203 Czech Republic) and Shulamit LEVENBERG (guarantor)
Edition
ADVANCED MATERIALS, WEINHEIM, WILEY-V C H VERLAG GMBH, 2021, 0935-9648
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
30201 Cardiac and Cardiovascular systems
Country of publisher
Germany
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 32.086
RIV identification code
RIV/00216224:14110/21:00122520
Organization unit
Faculty of Medicine
UT WoS
000696041200001
Keywords in English
3D bioprinting; ECM bioink; engineered flap; personalized medicine; tissue engineering; vascularization.
Tags
International impact, Reviewed
Změněno: 15/2/2022 11:29, Mgr. Tereza Miškechová
Abstract
V originále
Engineering hierarchical vasculatures is critical for creating implantable functional thick tissues. Current approaches focus on fabricating mesoscale vessels for implantation or hierarchical microvascular in vitro models, but a combined approach is yet to be achieved to create engineered tissue flaps. Here, millimetric vessel-like scaffolds and 3D bioprinted vascularized tissues interconnect, creating fully engineered hierarchical vascular constructs for implantation. Endothelial and support cells spontaneously form microvascular networks in bioprinted tissues using a human collagen bioink. Sacrificial molds are used to create polymeric vessel-like scaffolds and endothelial cells seeded in their lumen form native-like endothelia. Assembling endothelialized scaffolds within vascularizing hydrogels incites the bioprinted vasculature and endothelium to cooperatively create vessels, enabling tissue perfusion through the scaffold lumen. Using a cuffing microsurgery approach, the engineered tissue is directly anastomosed with a rat femoral artery, promoting a rich host vasculature within the implanted tissue. After two weeks in vivo, contrast microcomputer tomography imaging and lectin perfusion of explanted engineered tissues verify the host ingrowth vasculature's functionality. Furthermore, the hierarchical vessel network (VesselNet) supports in vitro functionality of cardiomyocytes. Finally, the proposed approach is expanded to mimic complex structures with native-like millimetric vessels. This work presents a novel strategy aiming to create fully-engineered patient-specific thick tissue flaps.