[The relationship between ¹⁸F-FDG uptake and oncogene in human laryngeal squamous cell carcinoma transplantation tumor animal model].

Objective: The aim of this study is to explore the relationship between [F18] fluoro 2 deoxy d glucose ¹⁸F-FDG) uptake and oncogene expression in human laryngeal squamous cell carcinoma (LSCC) transplantation tumor. Method: Ten nude mice were randomly divided into two groups, 5 mice of each group. One group was injected subcutaneously with Hep-2 cells to establish xenograft model, and the other one was injected with HIF-RNAi-Hep-2 cells. All animals were conducted with positron emission tomography computed tomography PET scan. The average tumor T/N ratio was calculated. After PET scanning, tumor tissue was picked off for immunohistochemical examination. Result: The tumor imaging were both clear and there was no significant difference between these two groups ( P > 0.05). The expression of hypoxia inducible factor 1 alpha (HIF-1α), glucose transporter protein-1 (GLUT-1) and vascular endothelial growth factor (VEGF) were high in Hep-2 group. The expression of HIF-1α was lower in HIF-RNAi-Hep-2 group ( P < 0.05). But there was no significant difference about the expression of GLUT-1 and VEGF between these two groups ( P > 0.05). Conclusion: The oncogenic pathway activated in LSCC is related with the uptake of ¹⁸F-FDG. The glycolysis gene and vascular factor maybe play a critical role.