Cell membrane coated electrochemical sensor for kinetic measurements of GLUT transport.
Anal Chim Acta
; 1226: 340263, 2022 Sep 15.
Article
em En
| MEDLINE
| ID: mdl-36068062
ABSTRACT
The upregulation of glucose transporter (GLUT) is a typical pathological marker in numerous cancer types and a potential target for anti-cancer drug therapy. We developed a cell membrane-based glucose sensor for real-time monitoring of GLUT transport kinetics. By combining hydrogel layers and liposomes, a planar cell membrane was constructed over the electrode, preventing pore leakage and allowing for highly sensitive and selective measurements. Based on this continuous monitoring technique, we investigated the effect of GLUT1-specific inhibitors such as Cytorelaxation B and BAY-876. We also measured the affinity of different hexoses to GLUT1 using a normalized response time comparison based on the cell membrane sensor. Experimental results were consistent with the molecular docking simulation, indicating that the sensor can be adapted to measure the glucose transport kinetics in different pharmacological conditions. This work demonstrated that cell membrane transport channels could maintain their transmembrane function in-vitro, and it has potential application in evaluating drug-receptor interaction.
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Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Proteínas de Transporte de Monossacarídeos
/
Proteínas Facilitadoras de Transporte de Glucose
Idioma:
En
Revista:
Anal Chim Acta
Ano de publicação:
2022
Tipo de documento:
Article
País de afiliação:
China