A targeted folate receptor-α near-infrared fluorescent agent used for in vitro diagnosis of endometrial cytology
Liang, D.; Tuo, X.; Zhao, L.; Zhang, K.; Wang, Y.; Feng, X.; Yin, P.; Guo, L.; Jing, W.; Wang, Q.; Sun, C.; Zou, J.; Han, L.; Li, Q.
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The aim of this study is to perform the synthesis and evaluation of the new near-infrared targeting fluorescent dye folic acid-ZW800-1 (ZW-FA) and to explore its potential feasibility for in vitro diagnosis of endometrial cancer. Characterisation and Folate receptor- (FR-) targeting verification of ZW-FA were performed first and 92 patients were recruited, after liquid-based cytology preparations, during a 15-month period. ZW-FA and Hematoxylin-Eosin (H&E) staining were performed on all cytological slides successively; the histological diagnoses were regarded as the gold standard for ROC curve analysis. The cut-off value of ZW-FA fluorescence intensity is 62.9745; the sensitivity (Se), specificity (Sp), false-negative rate (FNR), false-positive rate (FPR), positive predictive value (PV+) percentage and negative predictive value (PV-) of the ZW-FA method are 84.6%, 85.2%, 15.4%,14.8%, 93.2% and 69.7%, respectively. ZW-FA is potentially efficient for in vitro diagnosis of endometrial lesions based on the FR- expression level of different endometrial lesions.
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