Abstract
Purpose
Hypoxia is important in the biology of glioma in humans. Positron emission tomography/computed tomography (PET/CT) with a hypoxia tracer offers a noninvasive method to differentiate individual tumor biology and potentially modify treatment for patients with malignancies. The purpose of this study was to determine whether hypoxia, as measured by fluorine-18 fluoroerythronitroimidazole (18F-FETNIM) PET/CT, was associated with tumor grade, overall survival (OS), and immunohistochemical features related to hypoxia, proliferation, angiogenesis, and the invasion of gliomas.
Procedures
Twenty-five patients with gliomas in whom gross maximal resection could be safely attempted were analyzed. All patients underwent 18F-FETNIM PET/CT studies before surgery. The maximum standardized uptake value (SUVmax) was obtained from the PET images of tumor tissues. Tumor specimens were stereotactically obtained for the immunohistochemical staining of hypoxia-inducible factor-1 alpha (HIF-1α), Ki-67, vascular endothelial growth factor (VEGF), and matrix metalloproteinase 9 (MMP-9).
Results
A correlation between the SUVmax and glioma grade was found (r = 0.881, P < 0.001). The SUVmax was significantly correlated with the expression of HIF-1α, Ki-67, VEGF, and MMP-9 (r = 0.820, 0.747, 0.606, and 0.727; all P < 0.001). Patients with a high SUVmax had significantly worse 3-year OS than those with a low SUVmax (24.4% vs. 82.1%, P = 0.003).
Conclusions
18F-FETNIM PET/CT provides an excellent noninvasive assessment of hypoxia in glioma. It can be used to understand the mechanisms by which hypoxia affects the OS of glioma patients.
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Funding
This study was funded by the Science Technology Program of Jinan (201805051) and the Key Research Development Program of Shandong Province (2019GGX101057).
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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. This article does not contain any studies with animals performed by any of the authors.
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The current study received the Merit Award at the 2014 American Society of Clinical Oncology (ASCO) Annual Meeting in an Oral Scientific Session on June 2, 2014, Chicago, Illinois, USA.
This article is part of the Topical Collection on Oncology – Brain
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Hu, M., Zhu, Y., Mu, D. et al. Correlation of hypoxia as measured by fluorine-18 fluoroerythronitroimidazole (18F-FETNIM) PET/CT and overall survival in glioma patients. Eur J Nucl Med Mol Imaging 47, 1427–1434 (2020). https://doi.org/10.1007/s00259-019-04621-z
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DOI: https://doi.org/10.1007/s00259-019-04621-z