- 专利标题: Method of printing a tissue construct with embedded vasculature
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申请号: US15146613申请日: 2014-11-04
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公开(公告)号: US10117968B2公开(公告)日: 2018-11-06
- 发明人: Jennifer A. Lewis , David B. Kolesky , Mark A. Skylar-Scott , Kimberly A. Homan , Ryan L. Truby , Amelia Sydney Gladman
- 申请人: President and Fellows of Harvard College
- 申请人地址: US MA Cambridge
- 专利权人: President And Fellows Of Harvard College
- 当前专利权人: President And Fellows Of Harvard College
- 当前专利权人地址: US MA Cambridge
- 代理机构: Brinks Gilson & Lione
- 国际申请: PCT/US2014/063810 WO 20141104
- 国际公布: WO2015/069619 WO 20150514
- 主分类号: A61L27/50
- IPC分类号: A61L27/50 ; B29C64/40 ; B29C64/106 ; A61L27/38 ; B33Y10/00 ; B33Y80/00 ; A61F2/06 ; A61L27/22 ; A61F2/10 ; A61L27/36 ; C12M1/26
摘要:
A printed tissue construct comprises one or more tissue patterns, where each tissue pattern comprises a plurality of viable cells of one or more predetermined cell types. A network of vascular channels interpenetrates the one or more tissue patterns. An extracellular matrix composition at least partially surrounds the one or more tissue patterns and the network of vascular channels. A method of printing a tissue construct with embedded vasculature comprises depositing one or more cell-laden filaments, each comprising a plurality of viable cells, on a substrate to form one or more tissue patterns. Each of the one or more tissue patterns comprises one or more predetermined cell types. One or more sacrificial filaments, each comprising a fugitive ink, are deposited on the substrate to form a vascular pattern interpenetrating the one or more tissue patterns. The vascular pattern and the one or more tissue patterns are at least partially surrounded with an extracellular matrix composition. The fugitive ink is then removed to create vascular channels in the extracellular matrix composition, thereby forming an interpenetrating vascular network in a tissue construct.
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