Journal
INTERNATIONAL JOURNAL OF GYNECOLOGICAL CANCER
Volume 27, Issue 6, Pages 1247-1255Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/IGC.0000000000001004
Keywords
Cervical cancer; Prognosis; Stromal estrogen receptor alpha; Stromal progesterone receptor B
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Funding
- National Science Council, Taiwan [103-2314-B-303-011-MY2]
- Buddhist Tzu Chi General Hospital, Hualien [TCRD103-45, TCRD104-06]
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Objectives: The aim of this study was to investigate the expression of estrogen receptor alpha (ER alpha) 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. Methods: Expressional levels of ER alpha 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. Results: Estrogen receptor alpha 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 ER alpha were found in early-stage tumors than in advanced-stage tumors. Greater stromal expressions of ER alpha and PRB were associated with a more favorable prognosis (P = 0.018 and P = 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 ER alpha and PRB expressions were independently associated with a lower risk of mortality. The adjusted hazard ratios of mortality for low and high expressions of ER alpha 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. Conclusions: This study showed that stromal ER alpha and PRB expressions are independent prognostic indicators of cervical squamous cell carcinoma.
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