Expression of Estrogen and Progesterone Receptor in Tumor Stroma Predicts Favorable Prognosis of Cervical Squamous Cell Carcinoma

Author:

Hong Mun-Kun,Wang Jen-Hung,Su Cheng-Chuan,Li Ming-Hsun,Hsu Yung-Hsiang,Chu Tang-Yuan

Abstract

ObjectivesThe aim of this study was to investigate the expression of estrogen receptor α (ERα) and progesterone receptor B (PRB) in the stroma and carcinoma tissues of cervical cancer and their relationship to clinical characteristics and the status of human papillomavirus (HPV) infection.MethodsExpressional levels of ERα and PRB in tissue blocks of 95 cervical carcinomas were independently scored by 2 pathologists. Human papillomavirus DNA, viral load, and genotypes were determined by polymerase chain reaction. Clinical characteristics were reviewed from chart and cancer registry.ResultsEstrogen receptor α and PRB were mainly expressed in the stroma but not in the carcinoma tissues of the cervical cancer, and their expressions were highly correlated. More stromal ERαs were found in early-stage tumors than in advanced-stage tumors. Greater stromal expressions of ERα and PRB were associated with a more favorable prognosis (P= 0.018 andP= 0.004, respectively). The expressions were not related to the differentiation of cancer, the status of HPV infection, the HPV load, or the genotype. In multivariate analysis, stromal ERα and PRB expressions were independently associated with a lower risk of mortality. The adjusted hazard ratios of mortality for low and high expressions of ERα were 0.19 (95% confidential interval [95% CI], 0.04–0.87) and 0.15 (95% CI, 0.03–0.81), respectively, whereas for low and high expressions of PRB hazard ratios were 0.46 (95% CI, 0.19–1.16) and 0.24 (95% CI, 0.06–0.96), respectively.ConclusionsThis study showed that stromal ERα and PRB expressions are independent prognostic indicators of cervical squamous cell carcinoma.

Publisher

BMJ

Subject

Obstetrics and Gynecology,Oncology

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