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Epidermal growth factor (EGF) receptor targeted delivery of PEGylated adenovirus.

Abstract：

:A biotin-polyethylene glycol (PEG)-epidermal growth factor (EGF) conjugate was immobilized onto the surface of avidin-modified adenovirus (ADV-Avi) via biotin-avidin interaction to deliver ADV specifically to EGF receptor over-expressing cancer cells. ADV-Avi/biotin-PEG-EGF complexes showed greatly enhanced intracellular uptake of ADV particles for an EGF receptor positive cell line (A431 cells), compared to naked or PEG alone immobilized ADV. ADV coding an exogenous GFP gene was used to quantitatively evaluate the level of GFP expression. ADV-Avi/biotin-PEG-EGF complexes also exhibited significantly increased extent of GFP expression for A431 cells, but not for MCF-7 cells (an EGF receptor deficient cell line), suggesting that retargeting of ADV to specific cells occurred by tethering of a cell-specific targeting ligand to the distal end of a PEG chain anchored onto the surface of ADV. This study demonstrates that ADV-Avi/biotin-PEG-EGF construct systems can be applied for cell-specific delivery of ADV with simultaneously reducing innate immune responses.

journal_name

Biochem Biophys Res Commun

journal_title

Biochemical and biophysical research communications

authors

Park JW,Mok H,Park TG

doi

10.1016/j.bbrc.2007.12.045

subject

Has Abstract

pub_date

2008-02-15 00:00:00

pages

769-74

issue

3

eissn

0006-291X

issn

1090-2104

pii

S0006-291X(07)02637-X

journal_volume

366

pub_type

杂志文章

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