High Gene Expression Predicts Response to Chemotherapy and Prognosis of High-grade Serous Ovarian Cancer Patients
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Objective: High-grade serous ovarian cancer (HGSOC) is a deadly malignancy. Homeobox protein A9 () is linked with serous papillary histotype differentiation, and inappropriate expression is a step in ovarian cancer that induces aberrant differentiation. This study aimed to reveal the significance of in HGSOC.
Methods: mRNA and protein expression were examined by quantitative PCR and immunohistochemistry, respectively. The chi-square test was used to evaluate associations between expression and clinical characteristics. The prognostic value of was calculated by the Kaplan-Meier method. The Kaplan-Meier Plotter database was used to assess the prognostic value of .
Results: The mRNA and protein expression of were significantly upregulated in chemotherapy-resistant HGSOC compared with chemotherapy-sensitive HGSOC. The chi-square test showed that high expression was significantly related with grade, clinical stage, and residual disease. High expression was significantly associated with poor prognosis. The Kaplan-Meier Plotter database further confirmed these results. Cox hazard regression showed that high expression was an independent prognostic factor for survival in HGSOC patients.
Conclusion: This study showed that expression was associated with chemotherapy resistance and poor outcomes in HGSOC patients. High expression might be a prognostic indicator for HGSOC.
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