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Increases urinary HMGA1 in serous epithelial ovarian cancer patients
Jun Zhou1,2,3, Ming Xie3, Hanjiang He3
1Department of Pathology, School of Basic Medical Science, Central South University, Changsha, Hunan, China.
Background:
Serous epithelial ovarian cancer is the most common variety of ovarian cancer and is currently diagnosed using serum CA-125 levels. HMGA1 a small 10.6-12 kDa protein, has been implicated as a potentially important tumor biomarker and may enter the urinary trace, thus potentially able to serve as a disease biomarker.
Objective:
To determine if urine HMGA1 can be detected and potentially serve as a clinical diagnostic biomarkers.
Method:
Urine was collected from 20 healthy normal control patients, 20 patients with benign gynecological disease and 55 epithelial ovarian specimens of which 20 exhibited G1/2 ovarian cancer and 35 G3 ovarian cancers. Serum was also collected from 20 healthy normal control patients and 55 serous epithelial ovarian cancers patients. HMGA1 levels were examined via enzyme-linked immunosorbent assay (ELISA) and were reported independently and normalized to urine creatinine levels. Serum CA-125 levels were examined via enzyme assay and the data was analyzed via box and ROC analysis.
Results:
Urine HMGA1 was significantly elevated in serous epithelial ovarian cancer specimen relative to healthy control specimens with G3 specimens exhibiting higher levels than G1-G2 specimens. ROC analysis revealed a high degree of sensitivity and specificity for urine HMGA1 detection in ovarian cancer, with a higher AUC value noted for urine HMGA1 than serum CA-125. Furthermore, urine HMGA1 and serum CA-125 combined AUC indicated that urine HMGA1 is an excellent diagnostic biomarker for serous epithelial ovarian cancer.
Conclusion:
Our data indicates that measuring urine HMGA1 may serve as a useful diagnostic tool.
