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Syngeneic implantation of mouse hepatic progenitor cell-derived three-dimensional liver tissue with dense collagen fibrils 被引量:2
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作者 Miho Tamai Eijiro Adachi +1 位作者 masaya kawase Yoh-ichi Tagawa 《World Journal of Gastroenterology》 SCIE CAS 2022年第14期1444-1454,共11页
BACKGROUND Liver transplantation is a therapy for irreversible liver failure;however,at present,donor organs are in short supply.Cell transplantation therapy for liver failure is still at the developmental stage and i... BACKGROUND Liver transplantation is a therapy for irreversible liver failure;however,at present,donor organs are in short supply.Cell transplantation therapy for liver failure is still at the developmental stage and is critically limited by a shortage of human primary hepatocytes.AIM To investigate the possibility that hepatic progenitor cells(HPCs)prepared from the portal branch-ligated hepatic lobe may be used in regenerative medicine,we attempted to enable the implantation of extracellular matrices containing organoids consisting of HPC-derived hepatocytes and non-parenchymal cells.METHODS In vitro liver organoid tissue has been generated by accumulating collagen fibrils,fibroblasts,and HPCs on a mesh of polylactic acid fabric using a bioreactor;this was subsequently implanted into syngeneic wild-type mice.RESULTS The in vitro liver organoid tissues generated transplantable tissues in the condensed collagen fibril matrix and were obtained from the mouse through partial hepatectomy.CONCLUSION Liver organoid tissue was produced from expanded HPCs using an originally designed bioreactor system.This tissue was comparable to liver lobules,and with fibroblasts embedded in the network collagen fibrils of this artificial tissue,it is useful for reconstructing the hepatic interstitial structure. 展开更多
关键词 Liver Three-dimensional tissue culture Hepatic progenitor cells ANGIOGENESIS Biomimetic extracellular matrix
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