文章基本信息

标题：Immobilization of Tripeptide Growth Factor Glycyl-L-histidyl-L-lysine on Poly(vinylalcohol)-quarternized Stilbazole (PVA-SbQ) and Its Use as a Ligand for Hepatocyte Attachment
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作者：Masaya KAWASE ; Nagamitsu MIURA ; Nobuya KURIKAWA 等
期刊名称：Biological and Pharmaceutical Bulletin
印刷版ISSN：0918-6158
电子版ISSN：1347-5215
出版年度：1999
卷号：22
期号：9
页码：999-1001
DOI：10.1248/bpb.22.999
出版社：The Pharmaceutical Society of Japan
摘要：A tripeptide growth factor, glycyl-L-histidyl-L-lysine (GHK), was immobilized on the surface of poly(vinylalcohol)-quarternized stilbazole (PVA-SbQ) gel. The photoreactive substance, 4-(3-trifluoromethylazirino)benzoyl-N-hydroxysuccinimide (TDBA-OSu), was employed to link the gel and ligand GHK. The density of immobilized GHK was 70 nmol/cm². Isolated rat hepatocytes were inoculated on the GHK-immobilized PVA-SbQ gel and cultured for 5 d. About 24 h after inoculation, hepatocytes started to aggregate and formed multicellular spheroids while almost no cells attached to GHK-non-immobilized PVA-SbQ gel. The formed spheroids attached firmly to the surface of PVA-SbQ gel for 5 d. GHK was, thus, shown to be an effective ligand for hepatocyte attachment. Dodecamethylenediamine was used to extend the length between the gel surface and GHK. Extension of the length significantly increaesd the number of attached hepatocytes.
关键词：glycyl-L-histidyl-L-lysine (GHK);bioartificial liver;hepatocyte;spheroid;immobilization