{"title":"Enhancement of transfection efficiency using ligand-modified lipid vesicles","authors":"Jun You, Masamichi Kamihira, Shinji Iijima","doi":"10.1016/S0922-338X(98)80075-5","DOIUrl":null,"url":null,"abstract":"<div><p>Previously, we had developed a simple gene transfection technique for animal cells using cationic lipid vesicles; a commercially available synthetic cationic surfactant, dimethyldioctadecyl ammonium bromide (DDAB) was used for making lipid vesicles. In the present study, the lipid vesicles for receptor mediated gene transfer were modified with a ligand such as insulin and galactose residues to realize enhanced transfection efficiency and/or cell-specific gene transfection. The insulin-modified lipid vesicle solution mixed with the plasmid DNA (pCMVβ) was added to COS-7, NIH3T3, Hela or HepG2 cells; the transfection efficiency was increased 3–4-fold in all the cell lines tested. Furthermore, a mixture of the galactose-modified lipid vesicles and plasmid pCMVβ was added to HepG2 or HuH-6 cells expressing asialoglycoprotein receptors, and the transfection efficiency was increased 3–4-fold in these cell lines.</p></div>","PeriodicalId":15696,"journal":{"name":"Journal of Fermentation and Bioengineering","volume":"85 5","pages":"Pages 525-528"},"PeriodicalIF":0.0000,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0922-338X(98)80075-5","citationCount":"8","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Fermentation and Bioengineering","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0922338X98800755","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 8
Abstract
Previously, we had developed a simple gene transfection technique for animal cells using cationic lipid vesicles; a commercially available synthetic cationic surfactant, dimethyldioctadecyl ammonium bromide (DDAB) was used for making lipid vesicles. In the present study, the lipid vesicles for receptor mediated gene transfer were modified with a ligand such as insulin and galactose residues to realize enhanced transfection efficiency and/or cell-specific gene transfection. The insulin-modified lipid vesicle solution mixed with the plasmid DNA (pCMVβ) was added to COS-7, NIH3T3, Hela or HepG2 cells; the transfection efficiency was increased 3–4-fold in all the cell lines tested. Furthermore, a mixture of the galactose-modified lipid vesicles and plasmid pCMVβ was added to HepG2 or HuH-6 cells expressing asialoglycoprotein receptors, and the transfection efficiency was increased 3–4-fold in these cell lines.