Abstract
Background: This study aimed to determine whether several biologic markers were associated with <sup>18</sup>fluorine-fluorodeoxyglucose (<sup>18</sup>F-FDG) uptake in patients with carcinoma of the cervix. Patients and Methods: 60 patients with International Federation of Gynecology and Obstetrics (FIGO) stages IA2 to IIB cervical cancer, who underwent <sup>18</sup>FDG positron emission tomography/computed tomography (PET/CT), were included in the current study. All patients underwent radical hysterectomy. Tumor sections were stained by immunohistochemistry for glucose transporter 1 (GLUT1), carbonic anhydrase-IX (CA-IX), vascular endothelial growth factor (VEGF), hexokinase type I (HK-I), hexokinase type II (HK-II), and cytoplasmic and nuclear hypoxia-inducible factor (HIF) 1α. Results: The expression of GLUT1 (p = 0.005), VEGF (p = 0.021), HK-II (p = 0.009), and cytoplasmic HIF1α (p = 0.024) was significantly associated with a higher median standardized uptake value (SUV<sub>max</sub>). There was a positive correlation between <sup>18</sup>F-FDG uptake and GLUT1 (p = 0.008), CA-IX (p = 0.030), HK-II (p < 0.001) as well as cytoplasmic HIF1α (p = 0.016), whereas this relationship was not observed among the VEGF, HK-I and nuclear HIF1α. Conclusion: The data presented in this study indicate that <sup>18</sup>F-FDG uptake is associated with the presence of GLUT1, VEGF, nuclear HK-II, and cytoplasmic HIF1α. There was also a significant correlation among the rate of expression of GLUT1, HK-II, cytoplasmic HIF1α, and CAIX in carcinomas of the cervix.
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