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14 May 2014 Avian Prostatic Acid Phosphatase: Estrogen Regulation in the Oviduct and Epithelial Cell-Derived Ovarian Carcinomas
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Abstract

Prostatic acid phosphatase (ACPP) is a glycoprotein that is mainly synthesized and secreted by glandular epithelial cells (GE) of the prostate, and it is well known as a biomarker for prostate cancer. Although ACPP was used as prognostic/diagnostic indicator and studied to elucidate regulatory mechanism(s) during several decades in humans, its role is not clearly understood. Gene profiling data using a chicken DNA microarray revealed that ACPP increased significantly during remodeling and recrudescence of the oviduct in response to estrogen. Thus, in this study, we investigated the expression and hormonal regulation of ACPP gene in the reproductive tracts of chickens. ACPP was specifically detected in the luminal cells (LE) and GE of chicken oviduct, and diethylstilbestrol (a synthetic nonsteroidal estrogen) stimulated its expression during development of the oviduct. In addition, ACPP mRNA and protein were localized to LE and GE during the regeneration phase of the oviduct of laying hens during induced molting. Furthermore, ACPP mRNA and protein were abundant in GE of ovarian carcinoma, but not in normal ovaries. Moreover, strong expression of ACPP protein was detected in epithelial cells of cancerous ovaries from women. Collectively, results of the present study are the first to show that ACPP is a novel estrogen-stimulated gene in the oviductal epithelial cells of the chicken and that its expression increases significantly in epithelial cells of ovarian carcinoma, which indicates that it may be a candidate biomarker for diagnosis of epithelia-derived ovarian cancer in women.

Hyocheol Bae, Whasun Lim, Seung-Min Bae, Fuller W. Bazer, Youngsok Choi, and Gwonhwa Song "Avian Prostatic Acid Phosphatase: Estrogen Regulation in the Oviduct and Epithelial Cell-Derived Ovarian Carcinomas," Biology of Reproduction 91(1), (14 May 2014). https://doi.org/10.1095/biolreprod.114.118893
Received: 26 February 2014; Accepted: 1 May 2014; Published: 14 May 2014
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