Serum miR-125b levels associated with epithelial ovarian cancer (EOC) development and treatment responses. Issue 1 (1st January 2020)

• Record Type: Journal Article
• Authors: Chen, Zhonghua; Guo, Xiaoli; Sun, Shukai; Lu, Caixia; Wang, Liming
• Is Part Of: Bioengineered. Volume 11:Issue 1(2020)
• Page Start: 311
• Page End: 317
• Publication Date: 2020-01-01
• Subjects: Epithelial ovarian cancer -- Biomarkers -- Diagnosis -- Chemotherapy -- Mir-125; Biomedical engineering -- Periodicals; Biotechnology -- Periodicals; Microbiology -- Periodicals; 660.6
• DOI: 10.1080/21655979.2020.1736755
• Languages: English
• ISSNs: 2165-5987

Abstract

ABSTRACT: Downexpression of miRs was associated with tumor development, progression, and metastasis. This study explored the serum levels of miR-125b in patients with epithelial ovarian cancer (EOC) and to assess its diagnostic value and monitor treatment responses for patients with EOC. A total of 379 individuals were recruited and assigned to the study groups. RT-qPCR analysis was performed to confirm the association of serum miR-125b levels with tumor stages and treatment responses. The median serum levels of miR-125b in patients with EOC were significantly lower than that of other controls (P < 0.0001). Serum miR-125b in patients with high FIGO stage (III+IV), lymph node metastasis, and chemoresistance were lower than that in patients with early-stage (stage I+ II; P < 0.001), without lymph metastasis (p = 0.032) and chemosensitivity (P < 0.001). Low levels of miR-125b had a poor prognosis in patients with EOC. Using a median value of 0.748 to separate EOC from other controls, the sensitivity and specificity reached 0.76 (95% CI 0.75 to 0.85) and 0.416 (95% CI 0.26 to 0.55), respectively. Serum miR-125b showed a statistically significant difference between preoperative and postoperative patients in surgical patient groups (P = 0.003). Serum miR-125b levels were lower in patients with chemoresistance than that in patients with chemosensitivity (P < 0.0001). Serum miR-125b in combination with serum CA125 improved both sensitivity and specificity in diagnosis of EOC (P < 0.001). This study demonstrated that serum miR-125b levels were a useful diagnostic biomarker and biomarker to predict the responses to chemotherapy in patients with EOC.