2017 Fiscal Year Final Research Report
Improvement of cell-selective adhesion by cell surface modification with low molecule antibody via PEG lipid
| Project/Area Number |
16K15159
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Medical pharmacy
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Research Collaborator |
HASHIDA Mitsuru
SAKAMOTO Kensaku
YAMADA Sota
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| Project Period (FY) |
2016-04-01 – 2018-03-31
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| Keywords | ドラッグデリバリー / 低分子抗体 / PEG脂質 / 間葉系幹細胞 / 血管内皮細胞 |
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| Outline of Final Research Achievements |
Development of Drug Delivery System for cell based medicine is a promising method for cell therapy. At first, we developed the method for cell surface modification with low molecular weight antibody. In order to connect PEG-DSPE to anti-E-selectin single-chain variable fragment (scFv) without hindering its binding affinity, an unnatural amino acid, azide phenylalanine (AzF), was introduced at the opposite end of binding site in scFv. Then, scFv-PEG-DSPE were prepared by conjugating with scFv(AzF) and DBCO-PEG-DSBE via click reaction. Mesenchymal stem cells (MSCs) were modified with scFv by incubating cells in the medium containing scFv-PEG-DSPE. We confirmed that scFv on MSCs could keep its binding affinity toward E-selectin. Moreover, scFv modification could improve the adhesion ability of MSCs to HUVEC.
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| Free Research Field |
ドラッグデリバリー
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