No relationship between 18F-fluorodeoxyglucose positron emission tomography and expression of Glut-1 and -3 and hexokinase I and II in high-grade glioma

Charnley, N., Airley, Rachel, Du Plessis, D., West, Catharine M.L., Brock, C., Barnett, C., Matthews, J., Symonds, K., Bottomly, M., Swindell, R. and Price, P. (2008) No relationship between 18F-fluorodeoxyglucose positron emission tomography and expression of Glut-1 and -3 and hexokinase I and II in high-grade glioma. Oncology Reports, 20 (3). pp. 537-542. ISSN 1021-335X

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Abstract

The purpose of this study was to compare glucose metabolism, measured using 18F-fluorodeoxyglucose positron emission tomography ([18F]FDG-PET), with the expression of Glut-1 and -3 and hexokinase I (Hex I) and II in high-grade glioma. The retrospective study involved 27 patients with WHO classification grade III and IV glioma, with either newly diagnosed or recurrent tumours. Patients underwent dynamic and static [18F]FDG-PET to glucose metabolic rate (MRGlu) and standardised uptake value (SUV), respectively. Tumour biopsies were obtained and stained using immunohistochemistry for the expression of Glut-1, -3, Hex I and II. Relationships between variables were studied using Spearman's rank correlation test. Results showed that the expression of Glut-1, Glut-3, Hex I and Hex II varied between and within the tumour samples. The mean of MRGlu was 0.2 (range 0.09-0.25) µmol/min/ml and that of SUV was 4.2 (range 3.2-5.2). There were no significant relationships among the tumour expression of any of the proteins studied with either MRGlu or SUV (p>0.21 for all). In conclusion, the lack of relationship between the immunohistochemical expression of Glut-1, -3, Hex I or II and glucose metabolism measured using [18F]FDG-PET in patients with high-grade glioma may be due to the tissue heterogeneity and presence of necrosis in high-grade tumours.

Item Type:	Article
Subjects:	Q Science > Q Science (General) Q Science > QP Physiology
Schools:	School of Applied Sciences
Related URLs:	Author
Depositing User:	Sharon Beastall
Date Deposited:	02 Jul 2010 09:25
Last Modified:	12 Jan 2011 11:35
URI:	http://eprints.hud.ac.uk/id/eprint/8009

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