The correlation of prognostic biomarkers (Ki-67, Bcl-2, HIF-1α, cyclin D1) with metabolic tumor volume measured by F-FDG PET/CT inlaryngeal cancer.

OBJECTIVES

To investigate the correlation between tumor stage, Ki-67, Bcl-2, hypoxia inducible factor-1α (HIF-1α), cyclin D1 and metabolic tumor volume (MTV), total lesion glycolysis (TLG), maximum standardized uptake value (SUV) measured by F fluorodeoxyglucose positron emission tomography/computed tomography (FDG PET/CT) in patients diagnosed with laryngeal cancer.

PATIENTS AND METHODS

In this study, included 25 consecutive laryngeal cancer patients (2 women, 23 men) diagnosed and treated in the Otorhinolaryngology Department of our tertiary care center. All cases underwent F FDG PET/CT and SUV, mean standardized uptake value, MTV, and TLG values were calculated. Tumor staging was made and immunohistochemical staining was carried out for Ki-67, Bcl-2, HIF-1α and cyclin D1.

RESULTS

Eight (32%) patients had glottic laryngeal cancer, 6 (24%) had supraglottic laryngeal cancer and 11 (44%) had transglottic laryngeal cancer. Cyclin D1 was significantly correlated with MTV (r = 0.45, P = 0.03), TLG (r = 0.492, P = 0.01) and T-stage (r = 0.483, P = 0.02). Bcl-2 was significantly correlated with SUV (r = -0.41, P = 0.05) and tumor stage (r = -0.442, P = 0.03). MTV and TLG are significantly correlated with nodal stage (r = 0.422, P = 0.04, r = 0.419, P = 0.04), while TLG (r = 0.403, P = 0.05) and SUV (r = 0.440, P = 0.03) were correlated with tumor stage.

CONCLUSION

Our results indicated that biomarkers such as cyclin D1 and Bcl-2 were correlated with measures such as MTV, TLG, and SUV in F-FDG PET/CT. Integrative and combined evaluation of biomarkers and imaging data derived from F-FDG PET/CT are important for staging and appropriate management of patients with laryngeal cancer.