Influences of galactose ligand on the uptake of TADF liposomes by HepG2 cells.

Abstract:

:Glucose is the main energy substance to drive the physiological events of the cell.. Malignant cells exhibit a much higher rate of glycolysis than healthy cells to relieve the increased needs of energy. The higher metabolic rate induces the over-expression of the Glucose Transporter (GLUT) to transport more glucose into malignant cells. Our research regarded overexpressive GLUT as a target of nanoparticles. Substrate of GLUT galactose conjugated Polyethylene glycol-Distearyl phosphatidyl ethanolamine (PEG-DSPE) as a kind of ligand was selected to modified liposome. Thermally activated delayed fluorescence (TADF) was encapsulated as fluorescent probe to evaluate its abilities of targeting malignant cells, and the results of confocal microscopy and flow cytometry demonstrated that Galactose-PEG-DSPE modified liposome had the stronger efficiency of cellular uptake by HepG2 cells compared with Blank-PEG-DSPE modified liposome. The effect of GLUT1 inhibitor on cellular uptake of Galactose-PEG-DSPE modified liposomes showed that the mechanism might be relative to Warburg effect causing GLUT overexpression.

authors

Wang C,Chen Z,Tang X,Liu X,Na W,Li W,Liu T

doi

10.1016/j.pdpdt.2020.102014

subject

Has Abstract

pub_date

2020-12-01 00:00:00

pages

102014

eissn

1572-1000

issn

1873-1597

pii

S1572-1000(20)30368-9

journal_volume

32

pub_type

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