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Yu L, Liu M, Wang Z, Liu T, Liu S, Wang B, Pan B, Dong X, Guo W. Correlation between steroid levels in follicular fluid and hormone synthesis related substances in its exosomes and embryo quality in patients with polycystic ovary syndrome. Reprod Biol Endocrinol 2021; 19:74. [PMID: 34001150 PMCID: PMC8127216 DOI: 10.1186/s12958-021-00749-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 04/26/2021] [Indexed: 02/19/2023] Open
Abstract
BACKGROUND Polycystic ovary syndrome (PCOS) is an endocrine and metabolic disorder with various manifestations and complex etiology. Follicular fluid (FF) serves as the complex microenvironment for follicular development. However, the correlation between the concentration of steroid in FF and the pathogenesis of PCOS is still unclear. METHODS Twenty steroid levels in FF from ten patients with PCOS and ten women with male-factor infertility undergoing in vitro fertilization were tested by liquid chromatography-tandem mass spectrometry (LC-MS/MS) in order to explore their possibly correlation with PCOS. Meanwhile, the mRNA levels of core enzymes in steroid synthesis pathway from exosomes of FF were also detected by qPCR. RESULTS The estriol (p < 0.01), estradiol (p < 0.05) and prenenolone (p < 0.01) levels in FF of PCOS group were significantly increased, compared to the normal group, and the progesterone levels (p < 0.05) were decreased in PCOS group. Increased mRNA levels of CYP11A, CYP19A and HSD17B2 of exosomes were accompanied by the hormonal changes in FF. Correlation analysis showed that mRNA levels of CYP11A and HSD17B2 were negatively correlated with percent of top-quality embryos and rate of embryos develop to blastocyst. CONCLUSION Our results suggest that increased levels of estrogen and pregnenolone in follicular fluid may affect follicle development in PCOS patients, and the mechanism is partially related to HSD17B1, CYP19A1 and CYP11A1 expression change in FF exosomes.
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Affiliation(s)
- Li Yu
- Department of Laboratory Medicine, Zhongshan Hospital, Fudan University, No. 111 Yi Xue Yuan Road, Shanghai, 200032, PR China
| | - Miao Liu
- Reproductive Medicine Center, Zhongshan Hospital, Fudan University, No. 250 Xiao Mu Qiao Road, Shanghai, 200032, PR China
| | - Zhenxin Wang
- Department of Laboratory Medicine, Zhongshan Hospital, Fudan University, No. 111 Yi Xue Yuan Road, Shanghai, 200032, PR China
| | - Te Liu
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine, No.725 South Wan Ping Road, Shanghai, 200031, PR China
| | - Suying Liu
- Reproductive Medicine Center, Zhongshan Hospital, Fudan University, No. 250 Xiao Mu Qiao Road, Shanghai, 200032, PR China
| | - Beili Wang
- Department of Laboratory Medicine, Zhongshan Hospital, Fudan University, No. 111 Yi Xue Yuan Road, Shanghai, 200032, PR China
| | - Baishen Pan
- Department of Laboratory Medicine, Zhongshan Hospital, Fudan University, No. 111 Yi Xue Yuan Road, Shanghai, 200032, PR China
| | - Xi Dong
- Reproductive Medicine Center, Zhongshan Hospital, Fudan University, No. 250 Xiao Mu Qiao Road, Shanghai, 200032, PR China.
| | - Wei Guo
- Department of Laboratory Medicine, Zhongshan Hospital, Fudan University, No. 111 Yi Xue Yuan Road, Shanghai, 200032, PR China.
- Department of Laboratory Medicine, Xiamen Branch, Zhongshan Hospital, Fudan University, No. 668 Jin Hu Road, Xiamen, 361015, PR China.
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Conley AJ, Loux SC, Legacki EL, Stoops MA, Pukazhenthi B, Brown JL, Sattler R, French HM, Tibary A, Robeck TR. The steroid metabolome of pregnancy, insights into the maintenance of pregnancy and evolution of reproductive traits. Mol Cell Endocrinol 2021; 528:111241. [PMID: 33711335 DOI: 10.1016/j.mce.2021.111241] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 03/01/2021] [Accepted: 03/03/2021] [Indexed: 11/28/2022]
Abstract
Modes of mammalian reproduction are diverse and not always conserved among related species. Progesterone is universally required to supports pregnancy but sites of synthesis and metabolic pathways vary widely. The steroid metabolome of mid-to late gestation was characterized, focusing on 5α-reduced pregnanes in species representing the Perissodactyla, Cetartiodactyla and Carnivora using mass spectrometry. Metabolomes and steroidogenic enzyme ortholog sequences were used in heirarchial analyses. Steroid metabolite profiles were similar within orders, whales within cetartiodactyls for instance, but with notable exceptions such as rhinoceros clustering with goats, and tapirs with pigs. Steroidogenic enzyme sequence clustering reflected expected evolutionary relationships but once again with exceptions. Human sequences (expected outgroups) clustered with perissodactyl CYP11A1, CYP17A1 and SRD5A1 gene orthologues, forming outgroups only for HSD17B1 and SRD5A2. Spotted hyena CYP19A1 clustered within the Perissodactyla, between rhinoceros and equid orthologues, whereas CYP17A1 clustered within the Carnivora. This variability highlights the random adoption of divergent physiological strategies as pregnancy evolved among genetically similar species.
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Affiliation(s)
- A J Conley
- Department of Population Health & Reproduction, School of Veterinary Medicine, University of California, Davis, CA, USA.
| | - S C Loux
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, USA
| | - E L Legacki
- Department of Population Health & Reproduction, School of Veterinary Medicine, University of California, Davis, CA, USA; Hollings Marine Laboratory, National Institute of Standards & Technology, Charleston, SC, USA
| | - M A Stoops
- Omaha's Henry Doorly Zoo and Aquarium, Omaha, NE, USA
| | - B Pukazhenthi
- Center for Species Survival, Smithsonian Conservation Biology Institute, Front Royal, VA, USA
| | - J L Brown
- Center for Species Survival, Smithsonian Conservation Biology Institute, Front Royal, VA, USA
| | - R Sattler
- Alaska Department of Fish and Game, Palmer, AK, USA
| | - H M French
- Department of Clinical Sciences, Ross University School of Veterinary Medicine, St. Kitts, West Indies
| | - A Tibary
- Comparative Theriogenology, Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, WA, USA
| | - T R Robeck
- Zoological Operations, SeaWorld Parks and Entertainment, Orlando, FL, USA
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Sager CP, Weber S, Negri M, Banachowicz P, Möller G, Adamski J, Hartmann RW, Marchais-Oberwinkler S. Homology modeling meets site-directed mutagenesis: An ideal combination to elucidate the topology of 17β-HSD2. J Steroid Biochem Mol Biol 2021; 206:105790. [PMID: 33246154 DOI: 10.1016/j.jsbmb.2020.105790] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 11/03/2020] [Accepted: 11/18/2020] [Indexed: 11/17/2022]
Abstract
17β-Hydroxysteroid dehydrogenase type 2 (17β-HSD2) catalyzes the conversion of highly active estrogens and androgens into their less active forms using NAD+ as cofactor. Substrate and cofactor specificities of 17β-HSD2 have been reported and potent 17β-HSD2 inhibitors have been discovered in a ligand-based approach. However, the molecular basis and the amino acids involved in the enzymatic functionality are poorly understood, as no crystal structure of the membrane-associated 17β-HSD2 exists. The functional properties of only few amino acids are known. The lack of topological information impedes structure-based drug design studies and limits the design of biochemical experiments. The aim of this work was the determination of the 17β-HSD2 topology. For this, the first homology model of 17β-HSD2 in complex with NAD+ and 17β-estradiol was built, using a multi-fragment "patchwork" approach. To confirm the quality of the model, fifteen selected amino acids were exchanged one by one using site directed mutagenesis. The mutants' functional behavior demonstrated that the generated model was of very good quality and allowed the identification of several key amino acids involved in either ligand or internal structure stabilization. The final model is an optimal basis for further experiments like, for example, lead optimization.
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Affiliation(s)
- Christoph P Sager
- Pharmaceutical Chemistry, Philipps University Marburg, Marbacher Weg 6, 35037 Marburg, Germany
| | - Susanne Weber
- Helmholtz Zentrum München, Research Unit Molecular Endocrinology and Metabolism, 85764 Neuherberg, Germany
| | - Matthias Negri
- Helmholtz Institute for Pharmaceutical Research Saarland, Campus E8.1, 66123 Saarbrücken, Germany
| | - Pauline Banachowicz
- Helmholtz Zentrum München, Research Unit Molecular Endocrinology and Metabolism, 85764 Neuherberg, Germany
| | - Gabriele Möller
- Helmholtz Zentrum München, Research Unit Molecular Endocrinology and Metabolism, 85764 Neuherberg, Germany
| | - Jerzy Adamski
- Helmholtz Zentrum München, Research Unit Molecular Endocrinology and Metabolism, 85764 Neuherberg, Germany; Lehrstuhl für Experimentelle Genetik, Technische Universität München, 85356 Freising-Weihenstephan, Germany; German Center for Diabetes Research, 85764 Neuherberg, Germany
| | - Rolf W Hartmann
- Helmholtz Institute for Pharmaceutical Research Saarland, Campus E8.1, 66123 Saarbrücken, Germany; Pharmaceutical and Medicinal Chemistry, Saarland University, Campus C2.3, 66123 Saarbrücken, Germany
| | - Sandrine Marchais-Oberwinkler
- Pharmaceutical Chemistry, Philipps University Marburg, Marbacher Weg 6, 35037 Marburg, Germany; Pharmaceutical and Medicinal Chemistry, Saarland University, Campus C2.3, 66123 Saarbrücken, Germany.
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Yamamoto A, Yang L, Kuroda Y, Guo J, Teng L, Tsuruta D, Katayama I. Local Epidermal Endocrine Estrogen Protects Human Melanocytes against Oxidative Stress, a Novel Insight into Vitiligo Pathology. Int J Mol Sci 2020; 22:ijms22010269. [PMID: 33383933 PMCID: PMC7794688 DOI: 10.3390/ijms22010269] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 12/22/2020] [Accepted: 12/25/2020] [Indexed: 02/05/2023] Open
Abstract
As the outermost barrier of the body, skin is a major target of oxidative stress. In the brain, estrogen has been reported synthesized locally and protects neurons from oxidative stress. Here, we explored whether estrogen is also locally synthesized in the skin to protect from oxidative stress and whether aberrant local estrogen synthesis is involved in skin disorders. Enzymes and estrogen receptor expression in skin cells were examined first by quantitative real-time PCR and Western blot analyses. Interestingly, the estrogen synthesis enzyme was mainly localized in epidermal keratinocytes and estrogen receptors were mainly expressed in melanocytes among 13 kinds of cultured human skin cells. The most abundant estrogen synthesis enzyme expressed in the epidermis was 17β-hydroxysteroid dehydrogenase 1 (HSD17β1) localized in keratinocytes, and the most dominant estrogen receptor expressed in the epidermis was G protein-coupled estrogen receptor 1 (GPER1) in melanocytes. To investigate whether keratinocyte-derived estradiol could protect melanocytes from oxidative stress, cultured human primary epidermal melanocytes (HEMn-MPs) were treated with H2O2 in the presence or absence of 17β estradiol or co-cultured with HSD17β1 siRNA-transfected keratinocytes. Keratinocyte-derived estradiol exhibited protective effects against H2O2-induced cell death. Further, reduced expression of HSD17β1 in the epidermis of skin from vitiligo patients was observed compared to the skin from healthy donors or in the normal portions of the skin in vitiligo patients. Our results suggest a possible new target for interventions that may be used in combination with current therapies for patients with vitiligo.
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Affiliation(s)
- Asako Yamamoto
- Department of Pigmentation Research and Therapeutics, Graduate School of Medicine, Osaka City University, Osaka 545-0051, Japan; (A.Y.); (Y.K.); (J.G.); (L.T.); (I.K.)
- Department of Dermatology, Graduate School of Medicine, Osaka City University, Osaka 545-0051, Japan;
| | - Lingli Yang
- Department of Pigmentation Research and Therapeutics, Graduate School of Medicine, Osaka City University, Osaka 545-0051, Japan; (A.Y.); (Y.K.); (J.G.); (L.T.); (I.K.)
- Correspondence: ; Tel./Fax: +81-6-6556-7618
| | - Yasutaka Kuroda
- Department of Pigmentation Research and Therapeutics, Graduate School of Medicine, Osaka City University, Osaka 545-0051, Japan; (A.Y.); (Y.K.); (J.G.); (L.T.); (I.K.)
- Biological Science Laboratories, Kao Corporation, Kanagawa 250-0002, Japan
| | - Jiao Guo
- Department of Pigmentation Research and Therapeutics, Graduate School of Medicine, Osaka City University, Osaka 545-0051, Japan; (A.Y.); (Y.K.); (J.G.); (L.T.); (I.K.)
| | - Lanting Teng
- Department of Pigmentation Research and Therapeutics, Graduate School of Medicine, Osaka City University, Osaka 545-0051, Japan; (A.Y.); (Y.K.); (J.G.); (L.T.); (I.K.)
| | - Daisuke Tsuruta
- Department of Dermatology, Graduate School of Medicine, Osaka City University, Osaka 545-0051, Japan;
| | - Ichiro Katayama
- Department of Pigmentation Research and Therapeutics, Graduate School of Medicine, Osaka City University, Osaka 545-0051, Japan; (A.Y.); (Y.K.); (J.G.); (L.T.); (I.K.)
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Xiong W, Yin C, Wang Y, Lin S, Deng Z, Liang R. Characterization of an efficient estrogen-degrading bacterium Stenotrophomonas maltophilia SJTH1 in saline-, alkaline-, heavy metal-contained environments or solid soil and identification of four 17β-estradiol-oxidizing dehydrogenases. J Hazard Mater 2020; 385:121616. [PMID: 31780289 DOI: 10.1016/j.jhazmat.2019.121616] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 10/28/2019] [Accepted: 11/04/2019] [Indexed: 05/26/2023]
Abstract
The efficient bioremediation of estrogen contamination in complex environments is of great concern. Here the strain Stenotrophomonas maltophilia SJTH1 was found with great and stable estrogen-degradation efficiency even under stress environments. The strain could utilize 17β-estradiol (E2) as a carbon source and degrade 90% of 10 mg/L E2 in a week; estrone (E1) was the first degrading intermediate of E2. Notably, diverse pH conditions (3.0-11.0) and supplements of 4% salinity, 6.25 mg/L of heavy metal (Cd2+ or Cu2+), or 1 CMC of surfactant (Tween 80/ Triton X-100) had little effect on its cell growth and estrogen degradation. The addition of low concentrations of copper and Tween 80 even promoted its E2 degradation. Bioaugmentation of strain SJTH1 into solid clay soil achieved over 80% removal of E2 contamination (10 mg/kg) within two weeks. Further, the whole genome sequence of S. maltophilia SJTH1 was obtained, and a series of potential genes participating in stress-tolerance and estrogen-degradation were predicted. Four dehydrogenases similar to 17β-hydroxysteroid dehydrogenases (17β-HSDs) were found to be induced by E2, and the four heterogenous-expressed enzymes could oxidize E2 into E1 efficiently. This work could promote bioremediation appliance potential with microorganisms and biodegradation mechanism study of estrogens in complex real environments.
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Affiliation(s)
- Weiliang Xiong
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Chong Yin
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yanqiu Wang
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Shuangjun Lin
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Zixin Deng
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Rubing Liang
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
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Yancu D, Vaillancourt C, Sanderson JT. Evaluating the effects on steroidogenesis of estragole and trans-anethole in a feto-placental co-culture model. Mol Cell Endocrinol 2019; 498:110583. [PMID: 31536780 DOI: 10.1016/j.mce.2019.110583] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 09/14/2019] [Accepted: 09/15/2019] [Indexed: 01/11/2023]
Abstract
In this study, we determined whether estragole and its isomer trans-anethole interfered with feto-placental steroidogenesis in a human co-culture model composed of fetal-like adrenocortical (H295R) and placental trophoblast-like (BeWo) cells. Estragole and trans-anethole are considered the biologically active compounds within basil and fennel seed essential oils, respectively. After a 24 h exposure of the co-culture to 2.5, 5.2 and 25 μM estragole or trans-anethole, hormone concentrations of estradiol, estrone, dehydroepiandrosterone, androstenedione, progesterone and estriol were significantly increased. Using RT-qPCR, estragole and trans-anethole were shown to significantly alter the expression of several key steroidogenic enzymes, such as those involved in cholesterol transport and steroid hormone biosynthesis, including StAR, CYP11A1, HSD3B1/2, SULT2A1, and HSD17B1, -4, and -5. Furthermore, we provided mechanistic insight into the ability of estragole and trans-anethole to stimulate promoter-specific expression of CYP19 through activation of the PKA pathway in H295R cells and the PKC pathway in BeWo cells, in both cases associated with increased cAMP levels. Moreover, we show new evidence suggesting a role for progesterone in regulating steroid hormone biosynthesis through regulation of the StAR gene.
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Affiliation(s)
- Debbie Yancu
- INRS - Centre Armand-Frappier Santé Biotechnologie, Laval, QC, H7V 1B7, Canada.
| | - Cathy Vaillancourt
- INRS - Centre Armand-Frappier Santé Biotechnologie, Laval, QC, H7V 1B7, Canada
| | - J Thomas Sanderson
- INRS - Centre Armand-Frappier Santé Biotechnologie, Laval, QC, H7V 1B7, Canada.
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Zhang CY, Calvo EL, Yang CQ, Liu J, Sang XY, Lin SX. Transcriptome of 17β-hydroxysteroid dehydrogenase type 2 plays both hormone-dependent and hormone-independent roles in MCF-7 breast cancer cells. J Steroid Biochem Mol Biol 2019; 195:105471. [PMID: 31513846 DOI: 10.1016/j.jsbmb.2019.105471] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 09/06/2019] [Accepted: 09/07/2019] [Indexed: 12/11/2022]
Abstract
Breast cancer is a major cause of cancer-related death for women in western countries. 17β-Hydroxysteroid dehydrogenases (17β-HSDs) play important roles in the last step of sex-hormone activation and the first step of sex-hormone inactivation. 17β-HSD2 is responsible for oxidizing the sex hormones. We used microarray technology to analyze the effect of 17β-HSD2 on the MCF-7 cell transcript profile after knocking down 17β-HSD2. Five hundred forty-two genes were regulated 1.5-fold or higher after treatment with 17β-HSD2 siRNA. Knocking down 17β-HSD2 interrupted nucleosome assembly. Pathway-Act-Network analysis showed that the MAPK and apoptosis signaling pathways were most regulated. In the gene-gene interaction network analysis, UGT2B15, which is involved in hormone metabolism, was the most regulated core gene. FOS, GREB1, and CXCL12 were the most regulated genes, and CXCL12 was related to tumor migration. Following 17β-HSD2 knock-down, the cell viability decreased to 75.9%. The S-phase percentage decreased by 19.4%, the Q2-phase percentage in cell apoptosis testing increased by 1.5 times, and cell migration decreased to 66.0%. These results were consistent with our gene chip analysis and indicated that 17β-HSD2 plays both hormone-dependent and hormone-independent enzymatic roles. In-depth investigations of this enzyme on the genomic level will help clarify its related molecular mechanisms.
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Affiliation(s)
- Chen-Yan Zhang
- Institute for Special Environmental Biophysics, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, Shaanxi, PR China; Laboratory of Molecular Endocrinology and Oncology, Centre Hospitalier Universitaire de Québec Research Centre (CHUQ, CHUL) and Department of Molecular Medicine, Québec G1V 4G2, Canada
| | - Ezequiel-Luis Calvo
- Laboratory of Molecular Endocrinology and Oncology, Centre Hospitalier Universitaire de Québec Research Centre (CHUQ, CHUL) and Department of Molecular Medicine, Québec G1V 4G2, Canada
| | - Chang-Qing Yang
- Institute for Special Environmental Biophysics, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, Shaanxi, PR China
| | - Jie Liu
- Institute for Special Environmental Biophysics, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, Shaanxi, PR China
| | - Xiao-Ye Sang
- Laboratory of Molecular Endocrinology and Oncology, Centre Hospitalier Universitaire de Québec Research Centre (CHUQ, CHUL) and Department of Molecular Medicine, Québec G1V 4G2, Canada
| | - Sheng-Xiang Lin
- Laboratory of Molecular Endocrinology and Oncology, Centre Hospitalier Universitaire de Québec Research Centre (CHUQ, CHUL) and Department of Molecular Medicine, Québec G1V 4G2, Canada.
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Zhu H, Huang L, He Z, Zou Z, Luo Y. Estrogen-related receptor γ regulates expression of 17β-hydroxysteroid dehydrogenase type 1 in fetal growth restriction. Placenta 2018; 67:38-44. [PMID: 29941172 DOI: 10.1016/j.placenta.2018.05.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 05/24/2018] [Accepted: 05/28/2018] [Indexed: 02/01/2023]
Abstract
INTRODUCTION Estrogen-related receptor γ (ERRγ) and 17β-hydroxysteroid dehydrogenase type 1 (HSD17B1) have important roles in cell invasion and in the proliferation of many types of cancer cells. However, it remains unknown whether ERRγ and HSD17B1 contribute to abnormal placental structure and dysfunction which characterize fetal growth restriction (FGR). Therefore, the aim of this study was to investigate the expression profiles of ERRγ and HSD17B1 in placenta tissues affected by FGR and to examine a possible molecular mechanism by which ERRγ is able to regulate HSD17B1 during development of FGR. METHODS Placenta tissues were collected from women affected by FGR (n = 28) and from women with appropriately gestational age (AGA) (n = 30). Relative mRNA and protein levels of ERRγ and HSD17B1 in both groups were assessed by quantitative real-time PCR, immunohistochemistry, and Western blot analyses. The effect of ERRγ on trophoblast function and its associated mechanistic details were studied in the trophoblast cell line, HTR-8/SVneo, which was transfected with small interfering RNA (siRNA) targeting ERRγ. RESULTS Both mRNA and protein levels of ERRγ and HSD17B1 were significantly lower in FGR placentae (P < 0.05). When ERRγ expression was knocked down in HTR-8/SVneo cells with siRNA, invasion and proliferation were inhibited. In addition, HSD17B1 expression was significantly decreased. In dual luciferase reporter assays, ERRγ stimulated transcription of HSD17B1 by targeting the ERRγ response element within its 5'-flanking promoter region. DISCUSSION Aberrant ERRγ expression may contribute to the pathogenesis of FGR by regulating the transcriptional activity of HSD17B1.
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Affiliation(s)
- Hui Zhu
- Department of Obstetrics & Gynecology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Linhuan Huang
- Department of Obstetrics & Gynecology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zhiming He
- Department of Obstetrics & Gynecology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zhiyong Zou
- Department of Obstetrics & Gynecology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yanmin Luo
- Department of Obstetrics & Gynecology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
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Adibi JJ, Buckley JP, Lee MK, Williams PL, Just AC, Zhao Y, Bhat HK, Whyatt RM. Maternal urinary phthalates and sex-specific placental mRNA levels in an urban birth cohort. Environ Health 2017; 16:35. [PMID: 28381288 PMCID: PMC5382502 DOI: 10.1186/s12940-017-0241-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Accepted: 03/23/2017] [Indexed: 05/23/2023]
Abstract
BACKGROUND Prenatal urinary concentrations of phthalates in women participants in an urban birth cohort were associated with outcomes in their children related to neurodevelopment, autoimmune disease risk, and fat mass at 3,5,7, and 8 years of life. Placental biomarkers and outcomes at birth may offer biologic insight into these associations. This is the first study to address these associations with candidate genes from the phthalate and placenta literature, accounting for sex differences, and using absolute quantitation methods for mRNA levels. METHODS We measured candidate mRNAs in 180 placentas sampled at birth (HSD17B1, AHR, CGA, CYP19A1, SLC27A4, PTGS2, PPARG, CYP11A1) by quantitative PCR and an absolute standard curve. We estimated associations of loge mRNA with quartiles of urinary phthalate monoesters using linear mixed models. Phthalate metabolites (N = 358) and mRNAs (N = 180) were transformed to a z-score and modeled as independent, correlated vectors in relation to large for gestational age (LGA) and gestational diabetes mellitus (GDM). RESULTS CGA was associated with 4 out of 6 urinary phthalates. CGA was 2.0 loge units lower at the 3rd vs. 1st quartile of mono-n-butyl phthalate (MnBP) (95% confidence interval (CI): -3.5, -0.5) in male placentas, but 0.6 loge units higher (95% CI: -0.8, 1.9) in female placentas (sex interaction p = 0.01). There was an inverse association of MnBP with PPARG in male placentas (-1.1 loge units at highest vs. lowest quartile, 95% CI: -2.0, -0.1). CY19A1, CYP11A1, CGA were associated with one or more of the following in a sex-specific manner: monobenzyl phthalate (MBzP), MnBP, mono-iso-butyl phthalate (MiBP). These 3 mRNAs were lower by 1.4-fold (95% CI: -2.4, -1.0) in male GDM placentas vs. female and non-GDM placentas (p-value for interaction = 0.04). The metabolites MnBP/MiBP were 16% higher (95% CI: 0, 22) in GDM pregnancies. CONCLUSIONS Prenatal concentrations of certain phthalates and outcomes at birth were modestly associated with molecular changes in fetal placental tissue during pregnancy. Associations were stronger in male vs. female placentas, and associations with MnBP and MiBP were stronger than other metabolites. Placental mRNAs are being pursued further as potential mediators of exposure-induced risks to the health of the child.
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Affiliation(s)
- Jennifer J. Adibi
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, 130 Desoto Street, Parran Hall 5132, Pittsburgh, PA 15261 USA
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, Pittsburgh, USA
| | - Jessie P. Buckley
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, Baltimore, MD 21205 USA
| | - Myoung Keun Lee
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, 130 Desoto Street, Parran Hall 5132, Pittsburgh, PA 15261 USA
| | - Paige L. Williams
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Building I, Room 415, Boston, MA 02115 USA
| | - Allan C. Just
- Department of Preventive Medicine, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1057, New York, NY 10029 USA
| | - Yaqi Zhao
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, 130 Desoto Street, Parran Hall 5132, Pittsburgh, PA 15261 USA
| | - Hari K. Bhat
- Division of Pharmacology and Toxicology, UMKC School of Pharmacy, University of Missouri-Kansas City, 2464 Charlotte Street, HSB 5251, Kansas City, MO 64108 USA
| | - Robin M. Whyatt
- Department of Environmental Health Sciences, Mailman School of Public Health, 722 W 168th Street, New York, NY 10032 USA
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Li J, Chang J, Li W, Guo B, Li J, Wang H. Disruption of sex-hormone levels and steroidogenic-related gene expression on Mongolia Racerunner (Eremias argus) after exposure to triadimefon and its enantiomers. Chemosphere 2017; 171:554-563. [PMID: 28039834 DOI: 10.1016/j.chemosphere.2016.12.096] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Revised: 11/21/2016] [Accepted: 12/20/2016] [Indexed: 06/06/2023]
Abstract
Triadimefon (TF) is a widely used chiral fungicide with one chiral centre and two enantiomers (TF1 and TF2). However, little is reported about the ecological toxicity of reptiles on an enantioselective level. TF is a potential endocrine disruptor that may interfere with sex steroid hormones, such as testosterone (T) and 17beta-estradiol (E2). In our study, the lizards Mongolia Racerunner (Eremias argus) were orally exposed to TF and its enantiomers for 21 days. Plasma sex steroid hormones and steroidogenic-related genes, including 17-beta-hydroxysteroid (hsd17β), cytochrome P450 enzymes (cyp19 and cyp17), and steroid hormone receptors (erα and Ar) were evaluated. After exposure, the plasma testosterone level in the 100 mg/kgbw group was elevated, while the oestradiol level was reduced. This phenomenon may be caused by the transformation of cyp19, which may inhibit the conversion of testosterone to oestradiol and affect sexual behaviour. In addition, the two enantiomers have different effects on hormone levels, which testified to the previously reported biotoxic dissimilarity between TF1 and TF2 in organisms. Furthermore, the cyp19 mRNA level in liver and gonad of the TF2 and TF group (100 mg/kgbw) were significantly down-regulated, while the cyp17 and hsd17β mRNA levels were up-regulated. The expression of erα and Ar mRNA levels were up-regulated in males but not in females, which may indicate that TF has sex differences on these two genes. As seen from the above results, TF and its enantiomers may have endocrine-disrupting effects on lizards (E. argus) by acting sensitively on sex steroid hormones and steroidogenic-related genes.
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Affiliation(s)
- Jitong Li
- Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Shuangqing Rd 18, Beijing 100085, China; University of Chinese Academy of Sciences, Yuquan Rd 19A, Beijing, 100049, China
| | - Jing Chang
- Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Shuangqing Rd 18, Beijing 100085, China; University of Chinese Academy of Sciences, Yuquan Rd 19A, Beijing, 100049, China
| | - Wei Li
- Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Shuangqing Rd 18, Beijing 100085, China
| | - Baoyuan Guo
- Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Shuangqing Rd 18, Beijing 100085, China
| | - Jianzhong Li
- Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Shuangqing Rd 18, Beijing 100085, China
| | - Huili Wang
- Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Shuangqing Rd 18, Beijing 100085, China.
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Liu HC, Zhu D, Wang C, Guan H, Li S, Hu C, Chen Z, Hu Y, Lin H, Lian QQ, Ge RS. Effects of Etomidate on the Steroidogenesis of Rat Immature Leydig Cells. PLoS One 2015; 10:e0139311. [PMID: 26555702 PMCID: PMC4640886 DOI: 10.1371/journal.pone.0139311] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Accepted: 09/12/2015] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Etomidate is a rapid hypnotic intravenous anesthetic agent. The major side effect of etomidate is the reduced plasma concentration of corticosteroids, leading to the abnormal reaction of adrenals. Cortisol and testosterone biosynthesis has similar biosynthetic pathway, and shares several common steroidogenic enzymes, such as P450 side chain cleavage enzyme (CYP11A1) and 3β-hydroxysteroid dehydrogenase 1 (HSD3B1). The effect of etomidate on Leydig cell steroidogenesis during the cell maturation process is not well established. METHODOLOGY Immature Leydig cells isolated from 35 day-old rats were cultured with 30 μM etomidate for 3 hours in combination with LH, 8Br-cAMP, 25R-OH-cholesterol, pregnenolone, progesterone, androstenedione, testosterone and dihydrotestosterone, respectively. The concentrations of 5α-androstanediol and testosterone in the media were measured by radioimmunoassay. Leydig cells were cultured with various concentrations of etomidate (0.3-30 μM) for 3 hours, and total RNAs were extracted. Q-PCR was used to measure the mRNA levels of following genes: Lhcgr, Scarb1, Star, Cyp11a1, Hsd3b1, Cyp17a1, Hsd17b3, Srd5a1, and Akr1c14. The testis mitochondria and microsomes from 35-day-old rat testes were prepared and used to detect the direct action of etomidate on CYP11A1 and HSD3B1 activity. RESULTS AND CONCLUSIONS In intact Leydig cells, 30 μM etomidate significantly inhibited androgen synthesis. Further studies showed that etomidate also inhibited the LH- stimulated androgen production. On purified testicular mitochondria and ER fractions, etomidate competitively inhibited both CYP11A1 and HSD3B1 activities, with the half maximal inhibitory concentration (IC50) values of 12.62 and 2.75 μM, respectively. In addition, etomidate inhibited steroidogenesis-related gene expression. At about 0.3 μM, etomidate significantly inhibited the expression of Akr1C14. At the higher concentration (30 μM), it also reduced the expression levels of Cyp11a1, Hsd17b3 and Srd5a1. In conclusion, etomidate directly inhibits the activities of CYP11A1 and HSD3B1, and the expression levels of Cyp11a1 and Hsd17b3, leading to the lower production of androgen by Leydig cells.
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Affiliation(s)
- Hua-Cheng Liu
- Department of Anesthiology, The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou Medical University, Wenzhou, Zhejiang, 325027, People’s Republic of China
| | - Danyan Zhu
- Department of Anesthiology, The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou Medical University, Wenzhou, Zhejiang, 325027, People’s Republic of China
| | - Chan Wang
- Department of Anesthiology, The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou Medical University, Wenzhou, Zhejiang, 325027, People’s Republic of China
| | - Hongguo Guan
- School of Pharmacy, Wenzhou Medical University, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, People’s Republic of China
| | - Senlin Li
- Department of Anesthiology, The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou Medical University, Wenzhou, Zhejiang, 325027, People’s Republic of China
| | - Cong Hu
- Department of Anesthiology, The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou Medical University, Wenzhou, Zhejiang, 325027, People’s Republic of China
| | - Zhichuan Chen
- Department of Anesthiology, The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou Medical University, Wenzhou, Zhejiang, 325027, People’s Republic of China
| | - Yuanyuan Hu
- Department of Anesthiology, The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou Medical University, Wenzhou, Zhejiang, 325027, People’s Republic of China
| | - Han Lin
- Department of Anesthiology, The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou Medical University, Wenzhou, Zhejiang, 325027, People’s Republic of China
| | - Qing-Quan Lian
- Department of Anesthiology, The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou Medical University, Wenzhou, Zhejiang, 325027, People’s Republic of China
| | - Ren-Shan Ge
- Department of Anesthiology, The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou Medical University, Wenzhou, Zhejiang, 325027, People’s Republic of China
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Fouad Mansour M, Pelletier M, Boulet MM, Mayrand D, Brochu G, Lebel S, Poirier D, Fradette J, Cianflone K, Luu-The V, Tchernof A. Oxidative activity of 17β-hydroxysteroid dehydrogenase on testosterone in male abdominal adipose tissues and cellular localization of 17β-HSD type 2. Mol Cell Endocrinol 2015; 414:168-76. [PMID: 26123590 DOI: 10.1016/j.mce.2015.06.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Revised: 05/31/2015] [Accepted: 06/13/2015] [Indexed: 10/23/2022]
Abstract
Testosterone can be converted into androstenedione (4-dione) by 17β-hydroxysteroid dehydrogenase (HSD) activity likely performed by 17β-HSD type 2. Our objective was to evaluate the rate of testosterone conversion to 4-dione as well as expression and localization of 17β-HSD type 2 in omental (OM) vs. subcutaneous (SC) adipose tissues of men. Formation of 4-dione from testosterone was significantly higher in homogenates (p ≤ 0.001) and explants (p ≤ 0.01) of OM than SC tissue. Microscopy analyses and biochemical assays in cell fractions localized the enzyme in the vasculature/endothelial cells of adipose tissues. Conversion of testosterone to 4-dione was weakly detected in most OM and/or SC preadipocyte cultures. Positive correlations were found between 17β-HSD type 2 activity in whole tissue and BMI or SC adipocyte diameter. We conclude that conversion of testosterone to 4-dione detected in abdominal adipose tissue is caused by 17β-HSD type 2 which is localized in the vasculature of the adipose compartment.
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Affiliation(s)
- Mohamed Fouad Mansour
- Endocrinology and Nephrology, CHU de Québec-Université Laval Medical Center, Québec, Canada
| | - Mélissa Pelletier
- Endocrinology and Nephrology, CHU de Québec-Université Laval Medical Center, Québec, Canada
| | - Marie-Michèle Boulet
- Endocrinology and Nephrology, CHU de Québec-Université Laval Medical Center, Québec, Canada; Quebec Cardiology and Pulmonology Institute, School of Nutrition, Université Laval, Québec, Canada
| | - Dominique Mayrand
- Centre de recherche en organogénèse expérimentale de l'Université Laval /LOEX Division of Regenerative Medicine, CHU de Québec-Université Laval Medical Center, Québec, Canada; Department of Surgery, Université Laval, Québec, Canada
| | - Gaétan Brochu
- Department of General Surgery, CHU de Québec-Université Laval Medical Center, Québec, Canada
| | - Stefane Lebel
- Quebec Cardiology and Pulmonology Institute, School of Nutrition, Université Laval, Québec, Canada
| | - Donald Poirier
- Endocrinology and Nephrology, CHU de Québec-Université Laval Medical Center, Québec, Canada
| | - Julie Fradette
- Centre de recherche en organogénèse expérimentale de l'Université Laval /LOEX Division of Regenerative Medicine, CHU de Québec-Université Laval Medical Center, Québec, Canada; Department of Surgery, Université Laval, Québec, Canada
| | - Katherine Cianflone
- Quebec Cardiology and Pulmonology Institute, School of Nutrition, Université Laval, Québec, Canada
| | - Van Luu-The
- Endocrinology and Nephrology, CHU de Québec-Université Laval Medical Center, Québec, Canada
| | - André Tchernof
- Endocrinology and Nephrology, CHU de Québec-Université Laval Medical Center, Québec, Canada; Quebec Cardiology and Pulmonology Institute, School of Nutrition, Université Laval, Québec, Canada.
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Taheri S, Zararsiz G, Karaburgu S, Borlu M, Ozgun MT, Karaca Z, Tanriverdi F, Dundar M, Kelestimur F, Unluhizarci K. Is idiopathic hirsutism (IH) really idiopathic? mRNA expressions of skin steroidogenic enzymes in women with IH. Eur J Endocrinol 2015; 173:447-54. [PMID: 26194504 DOI: 10.1530/eje-15-0460] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Accepted: 07/20/2015] [Indexed: 01/03/2023]
Abstract
OBJECTIVE Hirsutism results from hyperandrogenemia and/or exaggerated androgen responsiveness. Among various causes of hirsutism, some patients do not exhibit androgen excess which is called idiopathic hirsutism (IH). The pathogenesis of IH could not so far be clearly established. DESIGN To investigate the mRNA expression of aromatase enzyme and the other enzymes having functional roles in the steroidogenic pathway, in freshly obtained skin tissue from subumbilical skin and the arm of the patients with IH and healthy women. METHODS Twenty-one women with IH and 15 healthy women were included in the study. We aimed to determine mRNA expressions of genes associated with local androgen synthesis and metabolism (CYP11A1, STS, CYP19A1, SRD5A1, SRD5A2, HSD3B1, AR, COMT, ESR1, ESR2, HSD3B2, CYP17A1, SULT2A1, SULT1E1, HSD17B2, IL6, TGFB1, TNFA) from skin biopsy and blood samples of patients with IH and the data compared with healthy subjects. RESULTS Patients with IH exhibit significantly lower interleukin 6 (IL6) mRNA expression and higher steroid sulphatase (STS) and hydroxysteroid (17beta) dehydrogenase 2 (HSD17B2), gene mRNA expression, respectively, in the subumbilical region skin biopsies. Similarly, patients with IH exhibit significantly lower IL6 mRNA expression and higher STS and HSD17B2 gene mRNA expression, respectively, in the arm skin compared to healthy women's subumbilical region. CONCLUSIONS In both arm and subumbilical skin biopsy of patients with IH, we observed an up-regulation of HSD17B2 and STS, decreased IL6 mRNA expression, probably determining an increase in the local amount of active androgens, which could then be used as substrate for other androgen metabolic routes.
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Affiliation(s)
- Serpil Taheri
- Departments of Medical BiologyStatisticsEndocrinologyDermatologyObstetrics and GynecologyGeneticsErciyes University Medical School, Kayseri 38039, TurkeyBetul-Ziya Eren Genome and Stem Cell CenterErciyes University, Kayseri, Turkey Departments of Medical BiologyStatisticsEndocrinologyDermatologyObstetrics and GynecologyGeneticsErciyes University Medical School, Kayseri 38039, TurkeyBetul-Ziya Eren Genome and Stem Cell CenterErciyes University, Kayseri, Turkey
| | - Gokmen Zararsiz
- Departments of Medical BiologyStatisticsEndocrinologyDermatologyObstetrics and GynecologyGeneticsErciyes University Medical School, Kayseri 38039, TurkeyBetul-Ziya Eren Genome and Stem Cell CenterErciyes University, Kayseri, Turkey Departments of Medical BiologyStatisticsEndocrinologyDermatologyObstetrics and GynecologyGeneticsErciyes University Medical School, Kayseri 38039, TurkeyBetul-Ziya Eren Genome and Stem Cell CenterErciyes University, Kayseri, Turkey
| | - Sulbiye Karaburgu
- Departments of Medical BiologyStatisticsEndocrinologyDermatologyObstetrics and GynecologyGeneticsErciyes University Medical School, Kayseri 38039, TurkeyBetul-Ziya Eren Genome and Stem Cell CenterErciyes University, Kayseri, Turkey
| | - Murat Borlu
- Departments of Medical BiologyStatisticsEndocrinologyDermatologyObstetrics and GynecologyGeneticsErciyes University Medical School, Kayseri 38039, TurkeyBetul-Ziya Eren Genome and Stem Cell CenterErciyes University, Kayseri, Turkey
| | - Mahmut Tuncay Ozgun
- Departments of Medical BiologyStatisticsEndocrinologyDermatologyObstetrics and GynecologyGeneticsErciyes University Medical School, Kayseri 38039, TurkeyBetul-Ziya Eren Genome and Stem Cell CenterErciyes University, Kayseri, Turkey
| | - Zuleyha Karaca
- Departments of Medical BiologyStatisticsEndocrinologyDermatologyObstetrics and GynecologyGeneticsErciyes University Medical School, Kayseri 38039, TurkeyBetul-Ziya Eren Genome and Stem Cell CenterErciyes University, Kayseri, Turkey
| | - Fatih Tanriverdi
- Departments of Medical BiologyStatisticsEndocrinologyDermatologyObstetrics and GynecologyGeneticsErciyes University Medical School, Kayseri 38039, TurkeyBetul-Ziya Eren Genome and Stem Cell CenterErciyes University, Kayseri, Turkey
| | - Munis Dundar
- Departments of Medical BiologyStatisticsEndocrinologyDermatologyObstetrics and GynecologyGeneticsErciyes University Medical School, Kayseri 38039, TurkeyBetul-Ziya Eren Genome and Stem Cell CenterErciyes University, Kayseri, Turkey
| | - Fahrettin Kelestimur
- Departments of Medical BiologyStatisticsEndocrinologyDermatologyObstetrics and GynecologyGeneticsErciyes University Medical School, Kayseri 38039, TurkeyBetul-Ziya Eren Genome and Stem Cell CenterErciyes University, Kayseri, Turkey
| | - Kursad Unluhizarci
- Departments of Medical BiologyStatisticsEndocrinologyDermatologyObstetrics and GynecologyGeneticsErciyes University Medical School, Kayseri 38039, TurkeyBetul-Ziya Eren Genome and Stem Cell CenterErciyes University, Kayseri, Turkey
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Zhang CY, Wang WQ, Chen J, Lin SX. Reductive 17beta-hydroxysteroid dehydrogenases which synthesize estradiol and inactivate dihydrotestosterone constitute major and concerted players in ER+ breast cancer cells. J Steroid Biochem Mol Biol 2015; 150:24-34. [PMID: 25257817 DOI: 10.1016/j.jsbmb.2014.09.017] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Revised: 09/02/2014] [Accepted: 09/21/2014] [Indexed: 11/26/2022]
Abstract
The reductive 17β-hydroxysteroid dehydrogenases which catalyze the last step in estrogen activation for estrogen dependent breast cancer cells were studied. Their biological function and the effects of their knockdown for cancer cell proliferation were demonstrated. The multidisciplinary study involves enzyme catalysis, sex-hormone and cell cycle regulation, as well as cell proliferation in breast cancer cells. Reductive 17β-HSD1, -7 and -12 were studied in the main breast cancer epithelial cells MCF-7 and T47D. Modification of estradiol and 5α-dihydrotestosterone concentrations was monitored by ELISA assay while corresponding cell viability measured by MTT assay. Cell cycle was determined by flow cytometry. Dual activity of estradiol activation and 5α-dihydrotestosterone reduction by 17β-HSD1 and -7 was critical for breast cancer cell (T47D and MCF-7) viability. Cell viability was decreased by 35.8% ± 1.6% in T47D cells after simultaneously knocking down 17β-HSD1 and -7. MCF-7 cell viability was decreased by 29.3% ± 4.2% using a combination of siRNAs and inhibitors. By knocking down 17β-HSD7, we have provided the first demonstration of the significant role of this enzyme in the stimulation of breast cancer cell viability as a result of its high activity on androgen reduction with positive feedback on estradiol production. A further decrease in cell viability was not observed with additional knockdown of 17β-HSD12 after 17β-HSD1 and 7. Breast cancer cell cycle progression was impeded to enter the S phase from G0-G1 after knocking down 17β-HSD1 and -7. In summary, this is the first demonstration that the dual activity in estrone activation and 5α-dihydrotestosterone reduction are the functional basis of reductive 17β-HSDs in breast cancer cells. 17β-HSD1 and -7 are principal reductive 17β-HSDs and major players in the viability of estrogen-dependent breast cancer cells. Combined targeting of these enzymes may be potential for molecular therapy of such cancer.
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Affiliation(s)
- Chen-Yan Zhang
- Laboratory of Molecular Endocrinology and Oncology, CHU de Quebec-Research Center (CHUL) and Laval University, Québec City, Québec G1V4G2, Canada; Key Laboratory for Space Bioscience and Biotechnology, Faculty of Life Sciences, Northwestern Polytechnic University, Xi'an, Shaanxi, China
| | - Wei-Qi Wang
- Shanghai Engineer and technology Research Center of Reproductive Health Drug and Devices, Shanghai, China
| | - Jiong Chen
- Shanghai Engineer and technology Research Center of Reproductive Health Drug and Devices, Shanghai, China
| | - Sheng-Xiang Lin
- Laboratory of Molecular Endocrinology and Oncology, CHU de Quebec-Research Center (CHUL) and Laval University, Québec City, Québec G1V4G2, Canada; Shanghai Engineer and technology Research Center of Reproductive Health Drug and Devices, Shanghai, China.
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Ren X, Wu X, Hillier SG, Fegan KS, Critchley HOD, Mason JI, Sarvi S, Harlow CR. Local estrogen metabolism in epithelial ovarian cancer suggests novel targets for therapy. J Steroid Biochem Mol Biol 2015; 150:54-63. [PMID: 25817828 PMCID: PMC4429663 DOI: 10.1016/j.jsbmb.2015.03.010] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Revised: 03/09/2015] [Accepted: 03/22/2015] [Indexed: 01/25/2023]
Abstract
Epithelial ovarian cancer (EOC) accounts for about 90% of malignant ovarian tumors, and estrogen is often implicated in disease progression. We therefore compared the potential for gating of estrogen action via pre-receptor metabolism in normal human ovarian surface epithelium (OSE), EOC and selected EOC cell lines (SKOV3 and PEO1). Steroid sulphatase (STS), estrogen sulfotransferase (EST), 17β-hydroxysteroid dehydrogenases 2 (17BHSD2) and 5 (17BHSD5) mRNAs, proteins and enzymatic activities were all detectable in primary cell cultures of OSE and EOC, whereas aromatase and 17BHSD1 expression was negligible. qRT-PCR assay on total mRNA revealed significantly higher EST mRNA expression in OSE compared to EOC (P<0.05). Radioenzymatic measurements confirmed reduced sulfoconjugation (neutralization) of free estrogen in EOC relative to OSE. OSE cells were more effective at converting free [(3)H]-E1 to [(3)H]-E1S or [(3)H]-E2S, while EOC cell lines mainly converted [(3)H]-E1 to [(3)H]-E2 with minimal formation of [(3)H]-E1S or [(3)H]-E2S. IL1α treatment suppressed EST (P<0.01) and 17BHSD2 (P<0.001) mRNA levels in OSE and stimulated STS mRNA levels (P<0.001) in cancer (SKOV3) cells. These results show that estrogen is differentially metabolized in OSE and EOC cells, with E2 'activation' from conjugated estrogen predominating in EOC. Inflammatory cytokines may further augment the local production of E2 by stimulating STS and suppressing EST. We conclude that local estrogen metabolism may be a target for EOC treatment.
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Affiliation(s)
- Xia Ren
- MRC Centre for Reproductive Health, The University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh, Scotland EH16 4TJ, United Kingdom
| | - Xuan Wu
- MRC Centre for Reproductive Health, The University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh, Scotland EH16 4TJ, United Kingdom
| | - Stephen G Hillier
- MRC Centre for Reproductive Health, The University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh, Scotland EH16 4TJ, United Kingdom
| | - K Scott Fegan
- MRC Centre for Reproductive Health, The University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh, Scotland EH16 4TJ, United Kingdom
| | - Hilary O D Critchley
- MRC Centre for Reproductive Health, The University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh, Scotland EH16 4TJ, United Kingdom
| | - J Ian Mason
- MRC Centre for Reproductive Health, The University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh, Scotland EH16 4TJ, United Kingdom
| | - Sana Sarvi
- MRC Centre for Reproductive Health, The University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh, Scotland EH16 4TJ, United Kingdom
| | - Christopher R Harlow
- MRC Centre for Reproductive Health, The University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh, Scotland EH16 4TJ, United Kingdom.
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Mu X, Du X, Yao K, Zhao J, Bian C, Wang Q, Ma H, Yi T, Wu Y, Zhao X. Association between HSD17B1 rs605059 polymorphisms and the risk of uterine diseases: a systemic review and meta-analysis. Int J Clin Exp Pathol 2015; 8:6012-8. [PMID: 26261478 PMCID: PMC4525812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 04/19/2015] [Accepted: 05/29/2015] [Indexed: 06/04/2023]
Abstract
The aim of this study was to evaluate the HSD17B1 gene polymorphisms in the risks of endometrial cancer, endometriosis and uterine leiomyoma by meta-analysis. A comprehensive electronic search was conducted in PubMed, Medline (Ovid), Embase, Weipu, Wanfang and CNKI. The pooled ORs were performed using the Revman 5.2 softerware. 8 case-control studies were included: 3 were about endometrial cancer, 4 were about endometriosis and 1 was about uterine leiomyoma. The result showed no significant association between HSD17B1 rs605059 gene polymorphisms and risks of endometrial cancer (AA vs. AG+GG: OR = 1.11, 95% CI = 0.94-1.32; AA+AG vs. GG: OR = 1.79, 95% CI = 0.42-7.52; AG vs. AA+ GG: OR = 0.87, 95% CI = 0.76-1.00; AA vs. GG: OR = 1.43, 95% CI = 0.62-3.30; A vs. G: OR = 1.00, 95% CI = 0.91-1.11) or endometriosis (AA vs. AG+GG: OR = 0.99, 95% CI = 0.75-1.32; AA+AG vs. GG: OR = 1.73, 95% CI = 0.92-3.25; AG vs. AA+ GG: OR = 1.24, 95% CI = 1.00-1.53; AA vs. GG: OR = 1.54, 95% CI = 0.79-2.97; A vs. G: OR = 1.23, 95% CI = 0.90-1.68). No association was found in a subgroup analysis based on Asian ethnicity for endometriosis. This meta-analysis suggested that HSD17B1 rs605059 polymorphisms were not associated with the risks of endometrial cancer and endometriosis. Further studies are needed to validate the conclusion and clarify the relationship between HSD17B1 rs605059 polymorphisms and the risk of uterine leiomyoma.
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Affiliation(s)
- Xiyan Mu
- Department of Gynecology and Obstetrics, West China Second Hospital, Sichuan UniversityChengdu 610041, Sichuan, P. R. China
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for BiotherapyChengdu 610041, Sichuan, P. R. China
| | - Xue Du
- Department of Gynecology and Obstetrics, West China Second Hospital, Sichuan UniversityChengdu 610041, Sichuan, P. R. China
| | - Kui Yao
- Department of Gynecology and Obstetrics, West China Second Hospital, Sichuan UniversityChengdu 610041, Sichuan, P. R. China
| | - Jitong Zhao
- Department of Gynecology and Obstetrics, West China Second Hospital, Sichuan UniversityChengdu 610041, Sichuan, P. R. China
| | - Ce Bian
- Department of Gynecology and Obstetrics, West China Second Hospital, Sichuan UniversityChengdu 610041, Sichuan, P. R. China
| | - Qiao Wang
- Department of Gynecology and Obstetrics, West China Second Hospital, Sichuan UniversityChengdu 610041, Sichuan, P. R. China
| | - Hongwei Ma
- Department of Gynecology and Obstetrics, West China Second Hospital, Sichuan UniversityChengdu 610041, Sichuan, P. R. China
| | - Tao Yi
- Department of Gynecology and Obstetrics, West China Second Hospital, Sichuan UniversityChengdu 610041, Sichuan, P. R. China
| | - Yang Wu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for BiotherapyChengdu 610041, Sichuan, P. R. China
| | - Xia Zhao
- Department of Gynecology and Obstetrics, West China Second Hospital, Sichuan UniversityChengdu 610041, Sichuan, P. R. China
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Fokidis HB, Yieng Chin M, Ho VW, Adomat HH, Soma KK, Fazli L, Nip KM, Cox M, Krystal G, Zoubeidi A, Tomlinson Guns ES. A low carbohydrate, high protein diet suppresses intratumoral androgen synthesis and slows castration-resistant prostate tumor growth in mice. J Steroid Biochem Mol Biol 2015; 150:35-45. [PMID: 25797030 DOI: 10.1016/j.jsbmb.2015.03.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2014] [Revised: 02/08/2015] [Accepted: 03/16/2015] [Indexed: 12/18/2022]
Abstract
Dietary factors continue to preside as dominant influences in prostate cancer prevalence and progression-free survival following primary treatment. We investigated the influence of a low carbohydrate diet, compared to a typical Western diet, on prostate cancer (PCa) tumor growth in vivo. LNCaP xenograft tumor growth was studied in both intact and castrated mice, representing a more advanced castration resistant PCa (CRPC). No differences in LNCaP tumor progression (total tumor volume) with diet was observed for intact mice (P = 0.471) however, castrated mice on the Low Carb diet saw a statistically significant reduction in tumor growth rate compared with Western diet fed mice (P = 0.017). No correlation with serum PSA was observed. Steroid profiles, alongside serum cholesterol and cholesteryl ester levels, were significantly altered by both diet and castration. Specifically, DHT concentration with the Low Carb diet was 58% that of the CRPC-bearing mice on the Western diet. Enzymes in the steroidogenesis pathway were directly impacted and tumors isolated from intact mice on the Low Carb diet had higher AKR1C3 protein levels and lower HSD17B2 protein levels than intact mice on the Western diet (ARK1C3: P = 0.074; HSD17B2: P = 0.091, with α = 0.1). In contrast, CRPC tumors from mice on Low Carb diets had higher concentrations of both HSD17B2 (P = 0.016) and SRD5A1 (P = 0.058 with α = 0.1) enzymes. There was no correlation between tumor growth in castrated mice for Low Carb diet versus Western diet and (a) serum insulin (b) GH serum levels (c) insulin receptor (IR) or (d) IGF-1R in tumor tissue. Intact mice fed Western diet had higher serum insulin which was associated with significantly higher blood glucose and tumor tissue IR. We conclude that both diet and castration have a significant impact on the endocrinology of mice bearing LNCaP xenograft tumors. The observed effects of diet on cholesterol and steroid regulation impact tumor tissue DHT specifically and are likely to be mechanistic drivers behind the observed tumor growth suppression.
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MESH Headings
- 3-Hydroxysteroid Dehydrogenases/genetics
- 3-Hydroxysteroid Dehydrogenases/metabolism
- 3-Oxo-5-alpha-Steroid 4-Dehydrogenase/genetics
- 3-Oxo-5-alpha-Steroid 4-Dehydrogenase/metabolism
- Adenocarcinoma/diet therapy
- Adenocarcinoma/genetics
- Adenocarcinoma/metabolism
- Adenocarcinoma/pathology
- Aldo-Keto Reductase Family 1 Member C3
- Androgens/biosynthesis
- Animals
- Blood Glucose/metabolism
- Castration
- Cholesterol/blood
- Cholesterol Esters/blood
- Diet, Carbohydrate-Restricted
- Diet, Western
- Dietary Proteins/administration & dosage
- Estradiol Dehydrogenases/genetics
- Estradiol Dehydrogenases/metabolism
- Gene Expression Regulation
- Growth Hormone/blood
- Humans
- Hydroxyprostaglandin Dehydrogenases/genetics
- Hydroxyprostaglandin Dehydrogenases/metabolism
- Insulin/blood
- Male
- Membrane Proteins/genetics
- Membrane Proteins/metabolism
- Mice
- Neoplasm Transplantation
- Prostate/drug effects
- Prostate/metabolism
- Prostate/pathology
- Prostate-Specific Antigen/blood
- Prostatic Neoplasms, Castration-Resistant/diet therapy
- Prostatic Neoplasms, Castration-Resistant/genetics
- Prostatic Neoplasms, Castration-Resistant/metabolism
- Prostatic Neoplasms, Castration-Resistant/pathology
- Receptor, IGF Type 1/genetics
- Receptor, IGF Type 1/metabolism
- Receptor, Insulin/genetics
- Receptor, Insulin/metabolism
- Transplantation, Heterologous
- Tumor Burden/drug effects
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Affiliation(s)
- H Bobby Fokidis
- Vancouver Prostate Centre, Vancouver, British Columbia, Canada; Department of Urologic Sciences, University of British Columbia, Vancouver, British Columbia V6H-3Z6, Canada; Department of Psychology, University of British Columbia, Vancouver, British Columbia V6T-1Z4, Canada
| | - Mei Yieng Chin
- Vancouver Prostate Centre, Vancouver, British Columbia, Canada; Department of Urologic Sciences, University of British Columbia, Vancouver, British Columbia V6H-3Z6, Canada
| | - Victor W Ho
- Terry Fox Laboratory, British Columbia Cancer Agency, Vancouver, British Columbia V5Z-1L3, Canada
| | - Hans H Adomat
- Vancouver Prostate Centre, Vancouver, British Columbia, Canada; Department of Urologic Sciences, University of British Columbia, Vancouver, British Columbia V6H-3Z6, Canada
| | - Kiran K Soma
- Department of Psychology, University of British Columbia, Vancouver, British Columbia V6T-1Z4, Canada
| | - Ladan Fazli
- Vancouver Prostate Centre, Vancouver, British Columbia, Canada; Department of Urologic Sciences, University of British Columbia, Vancouver, British Columbia V6H-3Z6, Canada
| | - Ka Mun Nip
- Vancouver Prostate Centre, Vancouver, British Columbia, Canada; Department of Urologic Sciences, University of British Columbia, Vancouver, British Columbia V6H-3Z6, Canada
| | - Michael Cox
- Vancouver Prostate Centre, Vancouver, British Columbia, Canada; Department of Urologic Sciences, University of British Columbia, Vancouver, British Columbia V6H-3Z6, Canada
| | - Gerald Krystal
- Terry Fox Laboratory, British Columbia Cancer Agency, Vancouver, British Columbia V5Z-1L3, Canada
| | - Amina Zoubeidi
- Vancouver Prostate Centre, Vancouver, British Columbia, Canada; Department of Urologic Sciences, University of British Columbia, Vancouver, British Columbia V6H-3Z6, Canada
| | - Emma S Tomlinson Guns
- Vancouver Prostate Centre, Vancouver, British Columbia, Canada; Department of Urologic Sciences, University of British Columbia, Vancouver, British Columbia V6H-3Z6, Canada.
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18
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Mori T, Ito F, Matsushima H, Takaoka O, Koshiba A, Tanaka Y, Kusuki I, Kitawaki J. Dienogest reduces HSD17β1 expression and activity in endometriosis. J Endocrinol 2015; 225:69-76. [PMID: 25767055 DOI: 10.1530/joe-15-0052] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/12/2015] [Indexed: 11/08/2022]
Abstract
Endometriosis is an estrogen-dependent disease. Abnormally biosynthesized estrogens in endometriotic tissues induce the growth of the lesion and worsen endometriosis-associated pelvic pain. Dienogest (DNG), a selective progesterone receptor agonist, is widely used to treat endometriosis and efficiently relieves the symptoms. However, its pharmacological action remains unknown. In this study, we elucidated the effect of DNG on enzymes involved in local estrogen metabolism in endometriosis. Surgically obtained specimens of 23 ovarian endometriomas (OE) and their homologous endometrium (EE), ten OE treated with DNG (OE w/D), and 19 normal endometria without endometriosis (NE) were analyzed. Spheroid cultures of stromal cells (SCs) were treated with DNG and progesterone. The expression of aromatase, 17β-hydroxysteroid dehydrogenase 1 (HSD17β1), HSD17β2, HSD17β7, HSD17β12, steroid sulfatase (STS), and estrogen sulfotransferase (EST) was evaluated by real-time quantitative PCR. The activity and protein level of HSD17β1 were measured with an enzyme assay using radiolabeled estrogens and immunohistochemistry respectively. OESCs showed increased expression of aromatase, HSD17β1, STS, and EST, along with decreased HSD17β2 expression, when compared with stromal cells from normal endometria without endometriosis (NESCs) (P<0.01) or stromal cells from homologous endometrium (EESCs) (P<0.01). In OESCs, DNG inhibited HSD17β1 expression and enzyme activity at 10(-7) M (P<0.01). Results of immunohistochemical analysis displayed reduced HSD17β1 staining intensity in OE w/D (P<0.05). In conclusion, DNG exerts comprehensive inhibition of abnormal estrogen production through inhibition of aromatase and HSD17β1, contributing to a therapeutic effect of DNG on endometriosis.
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Affiliation(s)
- Taisuke Mori
- Department of Obstetrics and Gynecology Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Fumitake Ito
- Department of Obstetrics and Gynecology Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Hiroshi Matsushima
- Department of Obstetrics and Gynecology Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Osamu Takaoka
- Department of Obstetrics and Gynecology Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Akemi Koshiba
- Department of Obstetrics and Gynecology Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Yukiko Tanaka
- Department of Obstetrics and Gynecology Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Izumi Kusuki
- Department of Obstetrics and Gynecology Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Jo Kitawaki
- Department of Obstetrics and Gynecology Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto 602-8566, Japan
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Frycz BA, Murawa D, Borejsza-Wysocki M, Marciniak R, Murawa P, Drews M, Jagodziński PP. Expression of 17β-hydroxysteroid dehydrogenase type 2 is associated with some clinicopathological features in gastric cancer. Biomed Pharmacother 2015; 70:24-7. [PMID: 25776474 DOI: 10.1016/j.biopha.2014.12.042] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Accepted: 12/30/2014] [Indexed: 01/19/2023] Open
Abstract
In most populations, gastric cancer (GC) incidence is higher in men than in women, which may suggest the role of sex steroid hormones in gastric cancerogenesis. Both, androgens and estrogens can be synthetised in peripherial tissues. This process is controlled by expression of steroidogenic enzymes. Therefore, we evaluate the 17β-hydroxysteroid dehydrogenase type 2 (HSD17B2) transcript and protein levels in gastric tumoral and nontumoral tissue. We also determined the association between HSD17B2 transcript and protein levels and some clinicopathological features in GC. We found significantly decreased levels of HSD17B2 transcript (P=0.00072) and protein (P=0.00017) in primary tumoral tissues of GC patients, as compared to nontumoral tissues. In patients above 60 years of age the amounts of HSD17B2 transcript (P=0.00044) and protein (P=0.00027) were significantly lower in tumoral than nontumoral tissues. Similarly, lower HSD17B2 levels, both in terms of the transcript and protein, were observed in tumoral tissues of male (P=0.013, P=0.0014), patients stomach (P=0.0062, P=0.045) and cardia (P=0.02, P=0.02) site of tumor, T3 (P=0.018, P=0.014) depth of invasion, N0 (P=0.017, P=0.045) lymph node metastasis, G3 (P=0.0027, P=0.014) malignancy grade. We also observed significantly reduced level of HSD17B2 transcript in tumoral tissue specimens of females (P=0.014), T4 depth of invasion (P=0.02), N3 lymph node metastasis (P=0.037) and G2 malignancy grade (P=0.045). Furthermore, diffuse GC histological types were associated with lower HSD17B2 protein level (P=0.024) than nontumoral tissues. We demonstrated that HSD17B2 transcript and protein levels are linked to some clinicopathological features in GC.
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Affiliation(s)
- Bartosz Adam Frycz
- Department of Biochemistry and Molecular Biology, Poznań University of Medical Sciences, Poznań, Poland
| | - Dawid Murawa
- First Department of Surgical Oncology and General Surgery, Wielkopolska Cancer Center, Poznań, Poland
| | - Maciej Borejsza-Wysocki
- Department of General Surgery, Oncological Gastroenterology and Plastic Surgery at the Poznań University of Medical Sciences, Poznań, Poland
| | - Ryszard Marciniak
- Department of General Surgery, Oncological Gastroenterology and Plastic Surgery at the Poznań University of Medical Sciences, Poznań, Poland
| | - Paweł Murawa
- First Department of Surgical Oncology and General Surgery, Wielkopolska Cancer Center, Poznań, Poland
| | - Michał Drews
- Department of General Surgery, Oncological Gastroenterology and Plastic Surgery at the Poznań University of Medical Sciences, Poznań, Poland
| | - Paweł Piotr Jagodziński
- Department of Biochemistry and Molecular Biology, Poznań University of Medical Sciences, Poznań, Poland.
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20
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Yoda T, McNamara KM, Miki Y, Takagi M, Rai Y, Ohi Y, Sagara Y, Tamaki K, Hirakawa H, Ishida T, Suzuki T, Ohuchi N, Sasano H. Intratumoral androgen metabolism and actions in invasive lobular carcinoma of the breast. Cancer Sci 2014; 105:1503-9. [PMID: 25230018 PMCID: PMC4462384 DOI: 10.1111/cas.12535] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Revised: 08/30/2014] [Accepted: 09/09/2014] [Indexed: 12/19/2022] Open
Abstract
Invasive lobular carcinoma (ILC) accounts for approximately 10% of all breast carcinomas and is characterized by higher levels of androgen receptor (AR) compared to invasive ductal carcinoma (IDC). Despite this potentially androgen-responsive environment, the combined importance of AR and androgen metabolism in non-neoplastic lobules and lobular carcinoma remains unknown. Therefore, in this study, we evaluated the status of pivotal androgen-producing enzymes 17β-hydroxysteroid dehydrogenase type 5 (17βHSD5) and 5α-reductase type 1 (5αRed1) in 178 cases of ILC and surrounding histologically non-neoplastic lobular tissue using immunohistochemistry. Androgen receptor prevalence was higher but androgenic enzymes lower in ILC than non-neoplastic lobules. In ILC cases the status of 5αRed1 and 17βHSD5 was inversely correlated with tumor size (P = 0.0053) and nuclear grade (P = 0.0290), and significantly associated with better overall survival of the patients (P = 0.0059). Based on these findings, we hypothesized that androgen signaling could act as a tumor suppressor. As previous studies suggested that androgens might partially act by increasing levels of the estrogen inactivating enzyme 17β-hydroxysteroid dehydrogenase type 2 (17βHSD2) in IDC tissues, this was reasonably considered a potential mechanism of androgen actions. Significantly positive correlation was detected between the status of androgenic enzymes and 17βHSD2 (P < 0.0001) and intratumoral 17βHSD2 was inversely correlated with tumor size in ILC (P = 0.0075). These correlations suggest one protective mode of androgen action could be through modulation of estrogen metabolism. Results of our present study indicated that androgen-producing enzymes could play pivotal protective roles in AR-enriched ILC cases.
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Affiliation(s)
- Tomomi Yoda
- Department of Pathology, Tohoku University Graduate School of MedicineSendai
| | - Keely May McNamara
- Department of Pathology, Tohoku University Graduate School of MedicineSendai
| | - Yasuhiro Miki
- Department of Pathology, Tohoku University Graduate School of MedicineSendai
| | - Mayu Takagi
- Department of Pathology, Tohoku University Graduate School of MedicineSendai
- Department of Surgery, Tohoku University Graduate School of MedicineSendai, Japan
| | - Yoshiaki Rai
- Department of Sagara Hospital, Social Medical Corporation HakuaikaiKagoshima, Japan
| | - Yasuyo Ohi
- Department of Sagara Hospital, Social Medical Corporation HakuaikaiKagoshima, Japan
| | - Yasuaki Sagara
- Department of Sagara Hospital, Social Medical Corporation HakuaikaiKagoshima, Japan
| | - Kentaro Tamaki
- Department of Pathology, Tohoku University Graduate School of MedicineSendai
- Department of Surgery, Tohoku University Graduate School of MedicineSendai, Japan
- Department of Nahanishi ClinicNaha, Japan
| | | | - Takanori Ishida
- Department of Surgery, Tohoku University Graduate School of MedicineSendai, Japan
| | - Takashi Suzuki
- Department of Pathology, Tohoku University Graduate School of MedicineSendai
| | - Noriaki Ohuchi
- Department of Surgery, Tohoku University Graduate School of MedicineSendai, Japan
| | - Hironobu Sasano
- Department of Pathology, Tohoku University Graduate School of MedicineSendai
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21
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Bertin J, Ouellet J, Dury AY, Pelletier G, Labrie F. Expression of the estrogen receptors and steroidogenic enzymes involved in estradiol formation in the monkey vagina. Am J Obstet Gynecol 2014; 211:499.e1-9. [PMID: 24928055 DOI: 10.1016/j.ajog.2014.06.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2013] [Revised: 02/21/2014] [Accepted: 06/05/2014] [Indexed: 11/17/2022]
Abstract
OBJECTIVE Estrogens are well recognized to have beneficial effects on vulvovaginal atrophy because of menopause. The distribution of estrogen receptors and enzymes responsible for estradiol (E2) formation within the vagina may provide insight into how dehydroepiandrosterone, a precursor of both estrogens and androgens, improves vulvovaginal atrophy. STUDY DESIGN The purpose of the study was to determine where the steroidogenic enzymes responsible for E2 formation as well as estrogen receptors are localized in vaginal specimens collected from cynomolgus monkeys (Macaca fascicularis), the closest model to the human. HSD3B1, HSD17B1, HSD17B5, HSD17B12, aromatase (CYP19A1), estrogen receptor (ER)-α, and ER-β were measured or localized by quantitative real-time polymerase chain reaction, immunohistochemistry, and immunofluorescence. Estrogens were quantified by liquid chromatography/tandem mass spectrometry. RESULTS All steroidogenic enzymes and estrogen receptors are localized mainly in the superficial layer of the stratified squamous epithelium, blood vessel walls, and muscle fibers of the vagina. Immunolabeling of HSD17B5 and HSD17B12 shows that these enzymes are uniformly distributed from the basal membrane to the superficial keratinized cells, whereas HSD3B1 and aromatase are particularly localized in the outer (external) portion of the epithelial layer. ER-α and ER-β are also distributed within the vaginal epithelium, with expression especially elevated at the basal membrane level. CONCLUSION The enzymes responsible for E2 formation as well as ERs are expressed mainly in the superficial layer of the stratified epithelium as well as the muscle layer of the vagina. The present data provide morphologic and biochemical support for the role of local dehydroepiandrosterone transformation into estrogens in regulating epithelial cell maturation, pH, fluid secretion, smooth muscle activity, and blood flow regulation in the primate vagina.
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Affiliation(s)
| | | | | | - Georges Pelletier
- Oncology, Molecular Endocrinology, and Human Genomics Research Center, Laval University, Quebec, QC, Canada
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22
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Straume AH, Knappskog S, Lønning PE. Effects of SNP variants in the 17β-HSD2 and 17β-HSD7 genes and 17β-HSD7 copy number on gene transcript and estradiol levels in breast cancer tissue. J Steroid Biochem Mol Biol 2014; 143:192-8. [PMID: 24560990 DOI: 10.1016/j.jsbmb.2014.02.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Revised: 01/16/2014] [Accepted: 02/08/2014] [Indexed: 01/11/2023]
Abstract
Breast cancers reveal elevated E2 levels compared to plasma and normal breast tissue. Previously, we reported intra-tumour E2 to be negatively correlated to transcription levels of 17β-HSD2 but positively correlated to 17β-HSD7. Here, we explored these mechanisms further by analysing the same breast tumours for 17β-HSD2 and -7 SNPs, as well as 17β-HSD7 gene copy number. Among the SNPs detected, we found the 17β-HSD2 rs4445895_T allele to be associated with lower intra-tumour mRNA (p=0.039) and an elevated intra-tumour E2 level (p=0.006). In contrast, we found the 17β-HSD7 rs1704754_C allele to be associated with elevated mRNA (p=0.050) but not to E2 levels in breast tumour tissue. Surprisingly, 17β-HSD7 - gene copy number was elevated in 19 out of 46 breast tumours examined. Elevated copy number was associated with an increased mRNA expression level (p=0.013) and elevated tumour E2 (p=0.025). Interestingly, elevated 17β-HSD7 - gene copy number was associated with increased expression not only of 17β-HSD7, but the 17β-HSD7_II pseudogene as well (p=0.019). Expression level of 17β-HSD7 and its pseudogene was significantly correlated both in tumour tissue (rs=0.457, p=0.001) and in normal tissue (rs=0.453, p=0.002). While in vitro transfection experiments revealed no direct impact of 17β-HSD7 expression on pseudogene level, the fact that 17β-HSD7 and 17β-HSD7_II share a 95.6% sequence identity suggests the two transcripts may be subject to common regulatory mechanisms. In conclusion, genetic variants of 17β-HSD2 and 17β-HSD7 may affect intra-tumour gene expression as well as breast cancer E2 levels in postmenopausal women.
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Affiliation(s)
- Anne Hege Straume
- Section of Oncology, Department of Clinical Science, University of Bergen, Norway; Department of Oncology, Haukeland University Hospital, Bergen, Norway
| | - Stian Knappskog
- Section of Oncology, Department of Clinical Science, University of Bergen, Norway; Department of Oncology, Haukeland University Hospital, Bergen, Norway
| | - Per Eystein Lønning
- Section of Oncology, Department of Clinical Science, University of Bergen, Norway; Department of Oncology, Haukeland University Hospital, Bergen, Norway.
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23
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Abstract
Androgens are well known to influence sebum synthesis and secretion. Various factors related to androgen biosynthesis are expressed in human sebaceous glands. In this study, immunohistochemical analysis of human skin specimens from 43 subjects indicated that various androgen-producing and -metabolizing enzymes were functionally localized to sebocytes accumulating lipid droplets and that the exclusive expression of 17β-hydroxysteroid dehydrogenase type 2 (17β-HSD2 (HSD17B2)) in sebaceous glands was negatively correlated with that of peroxisome proliferator-activated receptor gamma (PPARγ (PPARG)), which also significantly changed in an age-dependent manner. We also demonstrated that the changes of 17β-HSD2 expression in human immortalized sebocytes (SZ95) influenced the expressions of sebogenesis-related factors. In addition, the overexpression of 17β-HSD2 in SZ95 significantly increased the androstenedione production and markedly decreased the amounts of testosterone and dihydrotestosterone when DHEA was added externally. On the other hand, the phosphorylation of mammalian target of rapamycin, which is well known to induce sebum secretion and the onset and/or aggravation of acne, was increased by the addition of testosterone in the presence of IGF1 in hamster sebocytes. These results all indicated that local androgen biosynthesis and metabolism in human sebaceous glands could play a pivotal role in sebum synthesis and secretion.
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Affiliation(s)
- Takayoshi Inoue
- Departments of PathologyDermatologyTohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, JapanBiological Science LaboratoriesKao Corporation, Haga, Tochigi, JapanDepartments of DermatologyVenereology, Allergology and Immunology, Dessau Medical Center, Dessau, GermanyDepartments of PathologyDermatologyTohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, JapanBiological Science LaboratoriesKao Corporation, Haga, Tochigi, JapanDepartments of DermatologyVenereology, Allergology and Immunology, Dessau Medical Center, Dessau, Germany
| | - Yasuhiro Miki
- Departments of PathologyDermatologyTohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, JapanBiological Science LaboratoriesKao Corporation, Haga, Tochigi, JapanDepartments of DermatologyVenereology, Allergology and Immunology, Dessau Medical Center, Dessau, Germany
| | - Shingo Kakuo
- Departments of PathologyDermatologyTohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, JapanBiological Science LaboratoriesKao Corporation, Haga, Tochigi, JapanDepartments of DermatologyVenereology, Allergology and Immunology, Dessau Medical Center, Dessau, Germany
| | - Akira Hachiya
- Departments of PathologyDermatologyTohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, JapanBiological Science LaboratoriesKao Corporation, Haga, Tochigi, JapanDepartments of DermatologyVenereology, Allergology and Immunology, Dessau Medical Center, Dessau, Germany
| | - Takashi Kitahara
- Departments of PathologyDermatologyTohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, JapanBiological Science LaboratoriesKao Corporation, Haga, Tochigi, JapanDepartments of DermatologyVenereology, Allergology and Immunology, Dessau Medical Center, Dessau, Germany
| | - Setsuya Aiba
- Departments of PathologyDermatologyTohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, JapanBiological Science LaboratoriesKao Corporation, Haga, Tochigi, JapanDepartments of DermatologyVenereology, Allergology and Immunology, Dessau Medical Center, Dessau, Germany
| | - Christos C Zouboulis
- Departments of PathologyDermatologyTohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, JapanBiological Science LaboratoriesKao Corporation, Haga, Tochigi, JapanDepartments of DermatologyVenereology, Allergology and Immunology, Dessau Medical Center, Dessau, Germany
| | - Hironobu Sasano
- Departments of PathologyDermatologyTohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, JapanBiological Science LaboratoriesKao Corporation, Haga, Tochigi, JapanDepartments of DermatologyVenereology, Allergology and Immunology, Dessau Medical Center, Dessau, Germany
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Yamagata Y, Nishino K, Takaki E, Sato S, Maekawa R, Nakai A, Sugino N. Genome-wide DNA methylation profiling in cultured eutopic and ectopic endometrial stromal cells. PLoS One 2014; 9:e83612. [PMID: 24465385 PMCID: PMC3900404 DOI: 10.1371/journal.pone.0083612] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2013] [Accepted: 11/06/2013] [Indexed: 12/13/2022] Open
Abstract
The objective of this study was to characterize the genome-wide DNA methylation profiles of isolated endometrial stromal cells obtained from eutopic endometria with (euESCa) and without endometriosis (euESCb) and ovarian endometrial cysts (choESC). Three samples were analyzed in each group. The infinium methylation array identified more hypermethylated and hypomethylated CpGs in choESC than in euESCa, and only a few genes were methylated differently in euESCa and euESCb. A functional analysis revealed that signal transduction, developmental processes, immunity, etc. were different in choESC and euESCa. A clustering analysis and a principal component analysis performed based on the methylation levels segregated choESC from euESC, while euESCa and euESCb were identical. A transcriptome analysis was then conducted and the results were compared with those of the DNA methylation analysis. Interestingly, the hierarchical clustering and principal component analyses showed that choESC were segregated from euESCa and euESCb in the DNA methylation analysis, while no segregation was recognized in the transcriptome analysis. The mRNA expression levels of the epigenetic modification enzymes, including DNA methyltransferases, obtained from the specimens were not significantly different between the groups. Some of the differentially methylated and/or expressed genes (NR5A1, STAR, STRA6 and HSD17B2), which are related with steroidogenesis, were validated by independent methods in a larger number of samples. Our findings indicate that different DNA methylation profiles exist in ectopic ESC, highlighting the benefits of genome wide DNA methylation analyses over transcriptome analyses in clarifying the development and characterization of endometriosis.
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Affiliation(s)
- Yoshiaki Yamagata
- Department of Obstetrics and Gynecology, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Koichiro Nishino
- Laboratory of Veterinary Biochemistry and Molecular Biology, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
| | - Eiichi Takaki
- Department of Biochemistry and Molecular Biology, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Shun Sato
- Department of Obstetrics and Gynecology, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Ryo Maekawa
- Department of Obstetrics and Gynecology, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Akira Nakai
- Department of Biochemistry and Molecular Biology, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Norihiro Sugino
- Department of Obstetrics and Gynecology, Yamaguchi University Graduate School of Medicine, Ube, Japan
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Rižner TL. Estrogen biosynthesis, phase I and phase II metabolism, and action in endometrial cancer. Mol Cell Endocrinol 2013; 381:124-39. [PMID: 23911898 DOI: 10.1016/j.mce.2013.07.026] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2013] [Revised: 05/30/2013] [Accepted: 07/22/2013] [Indexed: 12/21/2022]
Abstract
Endometrial cancer is the most common gynecological malignancy in the developed World. Based on their histopathology, clinical manifestation, and epidemiology, the majority of endometrial cancer cases can be divided into two groups: the more prevalent type 1 which is associated with unopposed estrogen exposure; and the less common type 2, which is usually not associated with hyper-estrogenic factors. This manuscript overviews the published data on the expression of genes encoding the estrogen biosynthetic enzymes, the phase I and phase II estrogen metabolic enzymes, and the estrogen receptors in endometrial cancer, at the mRNA, protein and enzyme activity levels. The potential role of altered expression of these enzymes and receptors in cancerous versus control endometrial tissue, and the implication of estrogens in tumor initiation and promotion, are discussed. Finally, based on the published data, a model of estrogen metabolism and actions is proposed for pre-cancerous and cancerous endometrial tissue, and the role of the estrogens in the progression of endometrial cancer from endometrial hyperplasia is suggested.
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Affiliation(s)
- Tea Lanišnik Rižner
- Institute of Biochemistry, Faculty of Medicine, University of Ljubljana, Vrazov trg 2, 1000 Ljubljana, Slovenia.
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Braun BC, Zschockelt L, Dehnhard M, Jewgenow K. Progesterone and estradiol in cat placenta--biosynthesis and tissue concentration. J Steroid Biochem Mol Biol 2012; 132:295-302. [PMID: 22874432 DOI: 10.1016/j.jsbmb.2012.07.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Revised: 07/02/2012] [Accepted: 07/25/2012] [Indexed: 11/17/2022]
Abstract
Ovarian and placental steroids are essential for the maintenance of pregnancy. In some mammals it is evident that the placenta is responsible for the production of steroids. However, in the domestic cat, steroid secretion from the placenta has not yet been elucidated. Our study aimed to find out whether feline placentae are able to produce steroids. Placentae from different pregnancy stages were analyzed for mRNA expression of five steroidogenic enzymes (HSD3B1, CYP11A1, CYP17A1, HSD17B1 and CYP19A1) and for tissue concentrations of progesterone and estradiol. Steroidogenic enzymes responsible for the final steps of estradiol (CYP19A1) and progesterone synthesis (HSD3B) were expressed at very high levels and followed almost the same pattern over pregnancy as the intraplacental hormones themselves. By contrast, the other enzymes were found in very low quantities suggesting that biosynthesis occurs via extra-placental steroid precursors. The plasma steroid profiles measured by other groups differ from the placental hormone courses determined by us; therefore we conclude that the feline placenta can produce progesterone and estradiol.
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Affiliation(s)
- Beate C Braun
- Leibniz-Institute for Zoo and Wildlife Research, PF601103, 10252 Berlin, Germany.
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Beranič N, Rižner TL. Effects of progestins on local estradiol biosynthesis and action in the Z-12 endometriotic epithelial cell line. J Steroid Biochem Mol Biol 2012; 132:303-10. [PMID: 22878119 DOI: 10.1016/j.jsbmb.2012.07.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2012] [Revised: 07/19/2012] [Accepted: 07/25/2012] [Indexed: 01/23/2023]
Abstract
Endometriosis is a common estrogen-dependent gynecological disease. In patients with endometriosis estradiol can be synthesized locally in the endometriotic lesions from inactive precursors of adrenal or ovarian origin, via the aromatase pathway. These increased estradiol levels stimulate proliferation of endometriotic tissue. The progestins have been used in the therapy of endometriosis for more than 40 years but their pharmacological action is still not understood in detail. In the present study we therefore aimed to evaluate the effects of three progestins most commonly used in the therapy of endometriosis; medroxyprogesterone acetate, dydrogesterone and dienogest on expression of all genes encoding enzymes of the aromatase pathway and estrogen receptors in the Z-12 model epithelial cell line of peritoneal endometriosis, by qPCR and Western blotting. Our results show that application of medroxyprogestrone acetate, dydrogesterone and dienogest significantly decreases HSD17B1 and CYP19A1 expression and significantly increases HSD17B2 expression. Dydrogesterone and dienogest also significantly suppress ESR1 and ESR2 transcription, whereas medroxyprogestrone acetate and dydrogesterone significantly reduce mRNA levels of GPER. Our results thus suggest that in peritoneal endometriosis the beneficial effects of these progestins can be explained by lower HSD17B1 and higher HSD17B2 mRNA and protein levels, which lead to reduced local E2 biosynthesis. Although progestins significantly decrease CYP19A1 mRNA levels, the protein itself was not detectable by Western blotting. As progestins down-regulate expression of ESR1, ESR2 and GPER, they might also prevent E2-mediated proliferation.
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Affiliation(s)
- Nataša Beranič
- Institute of Biochemistry, Faculty of Medicine, University of Ljubljana, Vrazov trg 2, 1000 Ljubljana, Slovenia
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Cho LY, Yang JJ, Ko KP, Ma SH, Shin A, Choi BY, Han DS, Song KS, Kim YS, Chang SH, Shin HR, Kang D, Yoo KY, Park SK. Genetic susceptibility factors on genes involved in the steroid hormone biosynthesis pathway and progesterone receptor for gastric cancer risk. PLoS One 2012; 7:e47603. [PMID: 23110082 PMCID: PMC3479131 DOI: 10.1371/journal.pone.0047603] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2012] [Accepted: 09/12/2012] [Indexed: 02/07/2023] Open
Abstract
Background The objective of the study was to investigate the role of genes (HSD3B1, CYP17A1, CYP19A1, HSD17B2, HSD17B1) involved in the steroid hormone biosynthesis pathway and progesterone receptor (PGR) in the etiology of gastric cancer in a population-based two-phase genetic association study. Methods In the discovery phase, 108 candidate SNPs in the steroid hormone biosynthesis pathway related genes and PGR were analyzed in 76 gastric cancer cases and 322 controls in the Korean Multi-Center Cancer Cohort. Statistically significant SNPs identified in the discovery phase were re-evaluated in an extended set of 386 cases and 348 controls. Pooled- and meta-analyses were conducted to summarize the results. Results Of the 108 SNPs in steroid hormone biosynthesis pathway related genes and PGR analyzed in the discovery phase, 23 SNPs in PGR in the recessive model and 10 SNPs in CYP19A1 in the recessive or additive models were significantly associated with increased gastric cancer risk (p<0.05). The minor allele frequencies of the SNPs in both the discovery and extension phases were not statistically different. Pooled- and meta-analyses showed CYP19A1 rs1004982, rs16964228, and rs1902580 had an increased risk for gastric cancer (pooled OR [95% CI] = 1.22 [1.01–1.48], 1.31 [1.03–1.66], 3.03 [1.12–8.18], respectively). In contrast, all PGR SNPs were not statistically significantly associated with gastric cancer risk. Conclusions Our findings suggest CYP19A1 that codes aromatase may play an important role in the association of gastric cancer risk and be a genetic marker for gastric cancer susceptibility.
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Affiliation(s)
- Lisa Y. Cho
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea
- Cancer Research Institute, Seoul National University, Seoul, Korea
| | - Jae Jeong Yang
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea
- Cancer Research Institute, Seoul National University, Seoul, Korea
| | - Kwang-Pil Ko
- Department of Preventive Medicine, Graduate School of Medicine, Gachon University, Incheon, Korea
| | - Seung Hyun Ma
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea
- Cancer Research Institute, Seoul National University, Seoul, Korea
| | - Aesun Shin
- Molecular Epidemiology Branch, Research Institute, National Cancer Center, Goyang-si, Korea
| | - Bo Youl Choi
- Department of Preventive Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Dong Soo Han
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Kyu Sang Song
- Department of Pathology, Chungnam National University College of Medicine, Daejeon, Korea
| | - Yong Sung Kim
- Medical Genomics Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea
| | - Soung-Hoon Chang
- Department of Preventive Medicine, Konkuk University, Chungju, Korea
| | - Hai-Rim Shin
- Cancer Epidemiology Branch, National Cancer Center, Goyang-si, Korea
- Non Communicable Diseases and Health Promotion, World Health Organization, Western Pacific Regional Office, Manila, Philippines
| | - Daehee Kang
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea
- Cancer Research Institute, Seoul National University, Seoul, Korea
- Department of Biomedical Science, Seoul National University Graduate School, Seoul, Korea
| | - Keun-Young Yoo
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Sue K. Park
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea
- Cancer Research Institute, Seoul National University, Seoul, Korea
- Department of Biomedical Science, Seoul National University Graduate School, Seoul, Korea
- * E-mail:
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Cornel KMC, Kruitwagen RFPM, Delvoux B, Visconti L, Van de Vijver KK, Day JM, Van Gorp T, Hermans RJJ, Dunselman GA, Romano A. Overexpression of 17β-hydroxysteroid dehydrogenase type 1 increases the exposure of endometrial cancer to 17β-estradiol. J Clin Endocrinol Metab 2012; 97:E591-601. [PMID: 22362820 DOI: 10.1210/jc.2011-2994] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
CONTEXT The local interconversions between estrone (low activity) and 17β-estradiol (potent compound) by 17β-hydroxysteroid dehydrogenases (17β-HSDs) can lead to high 17β-estradiol generation in endometrial cancer (EC). OBJECTIVE Examine the balance between the 17β-HSDs reducing estrone to 17β-estradiol (types 1, 5, 12, and 7) and those oxidizing 17β-estradiol to estrone (2, 4, and 8), in EC. PATIENTS AND METHODS Reducing and oxidizing 17β-HSD activities (HPLC) and mRNA level (RT-PCR) were assessed in normal post-menopausal (n = 16), peritumoral endometrium (normal tissue beside cancer, n = 13), and 58 EC (29 grade 1, 18 grade 2, 11 grade 3). RESULTS Grade 1 EC displayed a shifted estrone reduction/17β-estradiol oxidation balance in favor of 17β-estradiol compared with controls. This was more pronounced among estrogen receptor-α (ER-α)-positive biopsies. Type 1 17β-HSD mRNA (HSD17B1 gene expression, real time PCR) and protein levels (immunohistochemistry) were higher in ER-α-positive grade 1 EC than controls. The mRNA coding for types 4, 5, 7, 8, and 12 17β-HSD did not vary, whereas that coding for type 2 17β-HSD was increased in high-grade lesions compared with controls. Three-dimensional ex vivo EC explant cultures demonstrated that 17β-HSD type 1 generated 17β-estradiol from estrone and increased tumor cell proliferation. Additional in vitro studies using EC cells confirmed that in the presence of 17β-HSD type 1, estrone induced estrogen signaling activation similarly to 17β-estradiol. Therefore, estrone was reduced to 17β-estradiol. CONCLUSIONS Type 1 17β-HSD increases 17β-estradiol exposure in grade 1 EC, thus supporting tumor growth. This enzyme represents a potential therapeutic target.
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Affiliation(s)
- Karlijn M C Cornel
- Department of Obstetrics and Gynaecology, Maastricht University Medical Centre, P. Debyelaan 25, 6202 AZ Maastricht, The Netherlands
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Simard M, Drolet R, Blomquist CH, Tremblay Y. Human type 2 17beta-hydroxysteroid dehydrogenase in umbilical vein and artery endothelial cells: differential inactivation of sex steroids according to the vessel type. Endocrine 2011; 40:203-11. [PMID: 21877158 DOI: 10.1007/s12020-011-9519-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2011] [Accepted: 07/29/2011] [Indexed: 10/17/2022]
Abstract
The human placenta produces high amounts of estradiol. 17β-hydroxysteroid dehydrogenase type 2 (17βHSD2) is expressed by placental endothelial cells and was proposed to regulate sex hormone levels. Previous results obtained in term placenta suggested that 17βHSD2 expression and activity differ among umbilical cord vessels. In this study, 17βHSD2 expression level and enzymatic activity, and estrogen receptor α and β expression levels, were measured in endothelial cell cultures from umbilical arteries (HUAEC) and vein (HUVEC) using real-time quantitative PCR, western blot, and radiolabeled steroids. 17βHSD2-specific activities were also measured in proximal and distal segments of freshly isolated umbilical cord arteries and vein. 17βHSD2 mRNA level and activity were higher in HUAEC than in HUVEC. Activity was higher in umbilical arteries than in the umbilical vein. In arteries, enzymatic activity was higher near the placenta, suggesting a gradient of expression. No difference was found in ERα expression, whereas ERβ was expressed at a higher level in HUAEC than in HUVEC. Expression profiles of estrogen receptors and 17βHSD2 suggest a vessel type-specific response to estrogens. Our data support a differential modulation of biologically active sex steroid levels according to the vessel type in the foeto-placental unit, with apparent higher inactivation in the arterial system.
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Affiliation(s)
- Marc Simard
- Reproduction, Perinatal Health, and Child Health Axis, CHUQ Research Center, 2705 Laurier Blvd., Rm T-1-49, Québec, QC G1V 4G2, Canada
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Lamp M, Peters M, Reinmaa E, Haller-Kikkatalo K, Kaart T, Kadastik U, Karro H, Metspalu A, Salumets A. Polymorphisms in ESR1, ESR2 and HSD17B1 genes are associated with fertility status in endometriosis. Gynecol Endocrinol 2011; 27:425-33. [PMID: 20586553 DOI: 10.3109/09513590.2010.495434] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
OBJECTIVE To investigate whether polymorphisms in genes involved in biosynthesis and signalling of sex steroids influence susceptibility to endometriosis and to infertility associated with it. MATERIALS AND METHODS Patients with endometriosis (n = 150) and fertile controls (n = 199) were genotyped for polymorphisms in oestrogen receptor genes ESR1 (rs2234693 - T/C single nucleotide polymorphism (SNP), dinucleotide (TA)(n) repeat) and ESR2 (dinucleotide (CA)(n) repeat), progesterone receptor gene PGR (rs10895068 - G/A SNP, 306-bp Alu-insertion), 17β-hydroxysteroid dehydrogenase type 1 gene HSD17B1 (rs605059 - A/G SNP), and aromatase gene CYP19A1 (rs10046 - C/T SNP, (TTTA)(n) tetranucleotide repeat, 3-bp TCT insertion/deletion polymorphism). RESULTS The HSD17B1 A/G SNP A allele increased overall endometriosis risk and the risk of stage I-II disease, while ESR1 longer (TA)(n) repeats only correlated with susceptibility to stage I-II endometriosis. When considering patients' fertility status, HSD17B1 A/G SNP A allele and ESR1 longer (TA)(n) repeats were associated with endometriosis accompanied by infertility, while ESR2 shorter (CA)(n) repeats were linked with endometriosis without infertility. Other polymorphisms were distributed similarly among patients and controls. CONCLUSIONS Genetic variants in ESR1, ESR2, and HSD17B1 genes could modify susceptibility to endometriosis and might influence the fertility status in endometriosis patients.
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Affiliation(s)
- Merit Lamp
- Department of Obstetrics and Gynaecology, University of Tartu, Tartu, Estonia.
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Sainz J, Rudolph A, Hein R, Hoffmeister M, Buch S, von Schönfels W, Hampe J, Schafmayer C, Völzke H, Frank B, Brenner H, Försti A, Hemminki K, Chang-Claude J. Association of genetic polymorphisms in ESR2, HSD17B1, ABCB1, and SHBG genes with colorectal cancer risk. Endocr Relat Cancer 2011; 18:265-76. [PMID: 21317201 DOI: 10.1530/erc-10-0264] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The incidence rates and relative risks for colorectal cancer (CRC) are higher in men than in women. Sex steroids may play a role in this gender-associated difference in CRC risk. This study was conducted to explore the relationship of single nucleotide polymorphisms (SNPs) in steroid hormone signaling (ESR1, ESR2, PGR, NR1I2, and SHBG), phase I- and II-metabolizing enzyme (COMT, HSD17B1, CYP1A1, CYP17A1, CYP1A2, CYP1B1, CYP2C9, CYP3A4, CYP2C19, and GSTP1), and hormone transporter (ABCB1) genes with the risk of CRC in German women and men, separately. From the population-based DACHS study (South Germany), 47 putatively functional SNPs were genotyped in 1798 CRC cases (746 women and 1052 men) and 1810 controls (732 women and 1078 men). Significant allele dose-response associations were observed with ESR2_rs1255998, ESR2_rs928554, HSD17B1_rs605059, and ABCB1_rs2229109 in women (P trend=0.004, 0.05, 0.03, and 0.05 respectively) and with ABCB1_rs1045642, ABCB1_rs9282564, and SHBG_rs6259 in men (P trend=0.01, 0.03, and 0.02 respectively). The ESR2_rs1255998_G allele showed the most significant association with risk for CRC in women, with a per-allele odds ratio (OR) of 0.68 (95% confidence interval (CI) 0.52-0.88). This finding was replicated in an independent study from North Germany including 1076 female CRC cases and 1151 controls (OR=0.84, 95% CI 0.71-1.04), yielding a per-allele OR of 0.80 (95% CI 0.69-0.93, P trend=0.003) in the pooled sample. These findings implicate a role of ESR2 in the risk for developing CRC in women and suggest that HSD17B1, ABCB1, and SHBG genes may contribute to sex steroid-mediated effects on CRC development.
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Affiliation(s)
- J Sainz
- Division of Molecular Genetic Epidemiology, German Cancer Research Center, Im Neuenheimer Feld 580, 69120 Heidelberg, Germany
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Lin J, Zee RYL, Liu KY, Zhang SM, Lee IM, Manson JE, Giovannucci E, Buring JE, Cook NR. Genetic variation in sex-steroid receptors and synthesizing enzymes and colorectal cancer risk in women. Cancer Causes Control 2010; 21:897-908. [PMID: 20148360 PMCID: PMC2873149 DOI: 10.1007/s10552-010-9518-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2009] [Accepted: 01/28/2010] [Indexed: 01/21/2023]
Abstract
OBJECTIVES Several lines of evidence have suggested that female hormones may lower the risk for developing colorectal cancer. However, the mechanisms by which sex hormones affect colorectal cancer development remain unknown. We sought to determine whether the association may be under genetic control by evaluating genetic variation in estrogen receptors (ESR1 and ESR2), progesterone receptor (PGR), aromatase cytochrome 450 enzyme (CYP19A1), and 17 beta-hydroxysteroid dehydrogenase type 2 gene (HSD17B2). METHODS We included 158 incident cases of colorectal cancer and 563 randomly chosen control subjects from 28,345 women in the Women's Health Study aged 45 or older who provided blood samples and had no history of cancer or cardiovascular disease at baseline in 1993. All cases and controls were Caucasians of European descent. A total of 63 tagging and putative functional SNPs in the 5 genes were included for analysis. Unconditional logistic regression was used to estimate odds ratio (ORs) and 95% confidence intervals (CIs). RESULTS There was no association between variation in ESR1, ESR2, PGR, CYP19A1 and HSD17B2 and colorectal cancer risk after correction for multiple comparisons (p values after correction > or =0.25). There was also no association with any of the haplotypes examined (p > or = 0.15) and no evidence of joint effects of variants in the 5 genes (p > or = 0.51). CONCLUSION Our data offer insufficient support for an association between variation in ESR1, ESR2, PGR, CYP19A1, and HSD17B2 and risk for developing colorectal cancer.
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Affiliation(s)
- Jennifer Lin
- Division of Preventive Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA.
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Ferlin A, Ganz F, Pengo M, Selice R, Frigo AC, Foresta C. Association of testicular germ cell tumor with polymorphisms in estrogen receptor and steroid metabolism genes. Endocr Relat Cancer 2010; 17:17-25. [PMID: 19776291 DOI: 10.1677/erc-09-0176] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
It is generally assumed that the development of testicular germ cell tumor (TGCT) is under endocrine control. In particular, unbalanced androgen/estrogen levels and/or activity are believed to represent the key events for TGCT development and progression. Furthermore, recent evidence has suggested a strong genetic component for TGCT. In this study, we analyzed whether a genetic variation in estrogen receptor (ESR) genes and steroid hormone metabolism genes is associated with TGCT. We genotyped for 17 polymorphic markers in 11 genes in 234 TGCT cases and 218 controls: ESR (ESR1 and ESR2); CYP19A1 (aromatase); 17beta-hydroxysteroid dehydrogenase types 1 and 4 (HSD17B1 and HSD17B4) dehydrogenases that convert potent androgens and estrogens to weak hormones; cytochrome P450 hydroxylating enzymes CYP1A1, CYP1A2, and CYP1B1; and the metabolic enzymes COMT, SULT1A1, and SULT1E1. We observed a significant association of rs11205 in HSD17B4 with TGCT. TGCT risk was increased twofold per copy of the minor A allele at this locus (odds ratios (OR)=2.273, 95% confidence interval (CI)=1.737-2.973). Homozygous carriage of the minor A allele was associated with an over fourfold increased risk of TGCT (OR=4.561, 95% CI=2.615-7.955) compared with homozygous carriage of the major G allele. The risk was increased both for seminoma (OR=5.327, 95% CI=2.857-9.931) and for nonseminoma (OR=3.222, 95% CI=1.471-7.059). We found for the first time an association of polymorphisms in HSD17B4 gene with TGCT. Our findings expand the current knowledge on the role of genetic contribution in testicular cancer susceptibility, and support the hypothesis that variations in hormone metabolism genes might change the hormonal environment implicated in testicular carcinogenesis.
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Affiliation(s)
- Alberto Ferlin
- Section of Clinical Pathology and Centre for Male Gamete Cryopreservation, Department of Histology, Microbiology and Medical Biotechnologies, University of Padova, Via Gabelli 63, 35121 Padova, Italy
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Katzaki E, Papa FT, Mucciolo M, Uliana V, Renieri A. Is HSD17B1 a new sex reversal gene in human? Mol Cell Endocrinol 2009; 313:70; author reply 71. [PMID: 19643167 DOI: 10.1016/j.mce.2009.07.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Su J, He SY, Li BY, Ma Y, Yu CS. [Screening of proteins binding to FXR1P using yeast two-hybrid technique]. Nan Fang Yi Ke Da Xue Xue Bao 2009; 29:2394-2400. [PMID: 20034884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
OBJECTIVE To screen the proteins interacting with FXR1P for functional investigation of FXR1P. METHODS The yeast strain AH109 transformed with the recombinant expression vector pGBKT7/FXR1 was mated with the yeast strain Y187 pretransformed with human fetal brain cDNA library. The positive clones were screened and identified by sequence analysis. RESULTS The recombinant expression vector pGBKT7/FXR1 was constructed successfully. Five proteins binding to FXR1P were screened from human fetal brain cDNA library using the yeast two-hybrid system, including CMAS, FTH1, GOLGA4, HSD17B1 and CSH1. CONCLUSIONS These results provide new clues for investigating the biological functions of FXR1P and the pathogenesis of Fragile X syndrome.
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Affiliation(s)
- Jiao Su
- Department of Biochemistry, Changzhi Medical College, Changzhi 046000, China.
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Wang YP, Li H, Li JY, Yuan P, Yang F, Lei FM, Pang Y, Guo J. [Relationship between estrogen-biosynthesis gene (CYP17, CYP19, HSD17beta1) polymorphisms and breast cancer]. Zhonghua Zhong Liu Za Zhi 2009; 31:899-903. [PMID: 20193327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
OBJECTIVE To explore the relationship between the polymorphism of estrogen-biosynthesis genes (CYP17, CYP19, HSD17beta1) and risk of breast cancer. METHODS A matched case-control study was designed. From May 2007 to July 2008, 200 pairs of subjects with and without breast cancer were enrolled, who were matched by age and menstruation status. Demographical characteristics, dietary factors and reproductive factors were investigated by questionnaire. CYP17 locus 1931 (T-->C), CYP19 codon 264 (Arg-->Cys) and HSD17beta1 locus 1954 (A-->G) were identified by AS-PCR (allele-specific PCR). The gene-gene interaction were analyzed with the MDR model (multifactor dimensionality reduction). Based on the results of MDR model, an unconditional logistic regression model was simulated to estimate the ORs of interaction factors and other risk factors. RESULTS The main effect of CYP17, CYP19 and HSD17beta1 susceptible genotypes were not correlated to breast cancer (OR approximately 1, P > 0.05). The positive interaction effect between CYP17 (T 1931C) and HSD17beta1 (A1954G) was discovered by MDR model with a statistically significant difference (Sign test, P = 0.05). The model's testing balance accuracy was 56.00%, and crossing validation consistency was 10/10. Multivariable unconditional logistic regression showed that after adjusting BMI, intake of estrogen, age of first birth, number of abortion and period of breast feeding, the interaction item of CYP17 (T1931C) and HSD17beta1 (A1954G) was strongly and positively correlated to breast cancer (OR = 2.52, 95%CI = 1.54 to 4.11). CONCLUSION The estrogen-biosynthesis genes CYP17 (T1931C) and HSD17beta1 (A1954G) polymorphism may jointly increase the risk of breast cancer.
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Affiliation(s)
- Yuan-ping Wang
- West-China School of Public Health, Sichuan University, Chengdu 610041, China
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Boucher E, Provost PR, Plante J, Tremblay Y. Androgen receptor and 17beta-HSD type 2 regulation in neonatal mouse lung development. Mol Cell Endocrinol 2009; 311:109-19. [PMID: 19576262 DOI: 10.1016/j.mce.2009.06.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2009] [Revised: 06/08/2009] [Accepted: 06/19/2009] [Indexed: 01/29/2023]
Abstract
A QPCR analysis of androgen receptor and several androgen metabolizing genes was performed during the saccular and alveolar stages of mouse lung development. Androgen receptor expression showed a statistically significant increase during the alveolar stage while levels of 17beta-hydroxysteroid dehydrogenase type 2 (17beta-HSD 2) expression significantly decreased at the end of the saccular stage and remained low throughout the alveolar period. 17beta-HSD 1, 17beta-HSD 5, 5alpha-reductase type 1, and mouse 3alpha-HSD did not present such a regulation. The androgen receptor protein was primarily detected in the nucleus of airway epithelial cells and of a subset of respiratory epithelial cells. 17beta-HSD 2 mRNA co-localized with androgen receptor protein during saccularization, but was absent from airway epithelium during alveolarization. Taken together, our results demonstrate temporal and spatial regulation of androgen receptor and 17beta-HSD 2 during the sacculo-alveolar transition period of mouse lung development suggesting control of androgen action.
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Affiliation(s)
- Eric Boucher
- Laboratory of Ontogeny and Reproduction, Centre Hospitalier Universitaire de Québec (CHUQ), Pavillon Centre Hospitalier de l'Université Laval (CHUL), Québec City, Québec, Canada
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Shen Z, Saloniemi T, Rönnblad A, Järvensivu P, Pakarinen P, Poutanen M. Sex steroid-dependent and -independent action of hydroxysteroid (17beta) Dehydrogenase 2: evidence from transgenic female mice. Endocrinology 2009; 150:4941-9. [PMID: 19797119 DOI: 10.1210/en.2009-0670] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
We have recently generated transgenic (TG) mice overexpressing human hydroxysteroid (17beta) dehydrogenase 2 enzyme (HSD17B2TG mice) under the ubiquitous chicken beta-actin promoter. As shown in the present study, the HSD17B2TG female mice presented with slower gain of body weight as compared with the wild-type (WT) littermates and suffered from ovarian dysfunction and mammary gland hyperplasia associated with increased expression of multiple pregnancy-associated genes. The macroscopic phenotype observed in the mammary gland was likely to be dependent on the increased progesterone and prolactin secretion, and a normal histological appearance was observed in HSD17B2TG mammary gland transplanted into a WT host. However, a significant suppression of several known estrogen target genes in the HSD17B2TG mammary transplants in WT females was observed, suggesting that HSD17B2 modulates estrogen action in vivo. Interestingly, the growth retardation of HSD17B2TG females was not efficiently rescued in the bi-TG mice expressing both HSD17B2 and HSD17B1 enzymes, and the bi-TG mice presented with certain masculinized phenotypes, including lack of nipples and closed vagina, recently reported for HSD17B1TG females. The present data suggest that HSD17B2 expression affects both sex steroid-independent and steroid-dependent pathways.
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Affiliation(s)
- Zhongyi Shen
- Department of Physiology, Institute of Biomedicine, University of Turku, Kiinamyllynkatu 10, FIN-20520 Turku, Finland
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Bellemare V, Laberge P, Noël S, Tchernof A, Luu-The V. Differential estrogenic 17beta-hydroxysteroid dehydrogenase activity and type 12 17beta-hydroxysteroid dehydrogenase expression levels in preadipocytes and differentiated adipocytes. J Steroid Biochem Mol Biol 2009; 114:129-34. [PMID: 19429442 DOI: 10.1016/j.jsbmb.2009.01.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2008] [Revised: 12/31/2008] [Accepted: 01/12/2009] [Indexed: 12/26/2022]
Abstract
Estradiol (E2) is produced locally in adipose tissue and could play an important role in fat distribution and accumulation, especially in women. It is well recognized that aromatase is expressed in adipose tissue; however the identity of its estrogenic 17beta-hydroxysteroid dehydrogenase (17beta-HSD) partner is not identified. To gain a better knowledge about the enzyme responsible for the conversion of estrone into estradiol, we determined the activity and expression levels of known estrogenic 17beta-HSDs, namely types 1, 7 and 12 17beta-HSD in preadipocytes before and after differentiation into mature adipocytes using an adipogenic media. Estrogenic 17beta-HSD activity was assessed using [(14)C]-labelled estrone, while mRNA expression levels of types 1, 7 and 12 17beta-HSD were quantified using real-time PCR and protein expression levels of type 12 17beta-HSD was determined using immunoblot analysis. The data indicate that there is a low conversion of E1 into E2 in preadipocytes; however this activity is increased approximately 5-fold (p<0.0001) in differentiated adipocytes. The increased estrogenic 17beta-HSD activity is consistent with the increase in protein expression levels of 17beta-HSD12.
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Affiliation(s)
- Véronique Bellemare
- Molecular Endocrinology and Oncology Research Center, Laval University Medical Research Center and Laval University, Québec, Canada
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Salama SA, Kamel MW, Diaz-Arrastia CR, Xu X, Veenstra TD, Salih S, Botting SK, Kumar R. Effect of tumor necrosis factor-alpha on estrogen metabolism and endometrial cells: potential physiological and pathological relevance. J Clin Endocrinol Metab 2009; 94:285-93. [PMID: 18957495 PMCID: PMC2630861 DOI: 10.1210/jc.2008-1389] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
CONTEXT Estrogen and its metabolites play a critical role in the pathophysiology of the endometrium. The bioavailability of estrogen and estrogen metabolites in endometrial tissues depends on the expression of enzymes involved in estrogen biosynthesis and metabolism. Substantial evidence indicates that estrogen-dependent endometrial disorders are also associated with proinflammatory milieu. However, the mechanism whereby inflammation contributes to these conditions is not known. OBJECTIVE The objective of the study was to investigate the effect of TNF-alpha on estrogen metabolism and the expression of estrogen-metabolizing genes in human endometrial glandular epithelial cells (EM1). DESIGN EM1 were treated with 17beta-estradiol (E2) with or without TNF-alpha. Capillary liquid chromatography-tandem mass spectrometry analysis was used for quantitative measurement of estrogens and estrogen metabolites. Western blot analysis, reporter gene assay, and real-time RT-PCR were used to assess the expression of estrogen-metabolizing genes. RESULTS TNF-alpha treatment significantly increased the level of total estrogen and estrogen metabolites and significantly increased the rate of conversion of estrone (E1) into E2. TNF-alpha also enhanced the oxidative metabolism of estrogen into catecholestrogens with concomitant inhibition of their conversion into methoxyestrogens. Gene expression analysis revealed that TNF-alpha induced the expression of genes involved in E2 biosynthesis (steroidogenic factor-1 and aromatase) and activation (17beta- hydroxysteroid dehydrogenase type 1 and cytochrome P-450, 1B1) with simultaneous repression of genes involved in estrogen inactivation (17beta-hydroxysteroid dehydrogenase type 2; catechol O-methyltransferase; and nicotinamide adenine dinucleotide phosphate-quinone oxidoreductase 1). CONCLUSION TNF-alpha increases the local estrogen biosynthesis in human endometrial glandular cells and directs estrogen metabolism into more hormonally active and carcinogenic metabolites. These effects may impact many physiological and pathological processes that occur within the endometrium.
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Affiliation(s)
- Salama A Salama
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Texas Medical Branch at Galveston, 300 University Boulevard, Galveston, Texas 77555, USA.
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Plourde M, Manhes C, Leblanc G, Durocher F, Dumont M, Sinilnikova O, Simard J. Mutation analysis and characterization of HSD17B2 sequence variants in breast cancer cases from French Canadian families with high risk of breast and ovarian cancer. J Mol Endocrinol 2008; 40:161-72. [PMID: 18372405 DOI: 10.1677/jme-07-0101] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Estrogen exposure is a risk factor for breast cancer. Given that HSD17B2 gene encodes an enzyme that catalyses estradiol inactivation, it appears as a good candidate breast cancer susceptibility gene. This study was designed to screen for HSD17B2 germline mutations potentially involved in breast cancer predisposition. Our re-sequencing analysis did not identify any deleterious germline mutations, and therefore mutations in HSD17B2 do not explain the clustering of breast cancer cases in non-BRCA1/2 high-risk French Canadian families. However, six sequence variants were identified, including two novel missense variants. Expression assays revealed that p.Ala111Asp and p.Gly160Arg did not alter the catalytic properties of 17beta-hydroxysteroid dehydrogenase type 2 enzyme, although p.Ala111Asp appears to affect protein stability resulting in significant decreases in the protein levels, providing valuable information on structure-function relationship.
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Affiliation(s)
- Marie Plourde
- Cancer Genomics Laboratory, Oncology and Molecular Endocrinology Research Center, Centre Hospitalier Universitaire de Québec and Laval University, Quebec G1V 4G2, Canada
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Endo S, Sanai M, Horie K, Matsunaga T, Ishikura S, Tajima K, El-Kabbani O, Hara A. Characterization of rat and mouse NAD+-dependent 3α/17β/20α-hydroxysteroid dehydrogenases and identification of substrate specificity determinants by site-directed mutagenesis. Arch Biochem Biophys 2007; 467:76-86. [PMID: 17888864 DOI: 10.1016/j.abb.2007.08.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2007] [Revised: 08/06/2007] [Accepted: 08/10/2007] [Indexed: 11/18/2022]
Abstract
In this study, we characterized rat and mouse aldo-keto reductases (AKR1C16 and AKR1C13, respectively) with 92% sequence identity. The recombinant enzymes oxidized non-steroidal alcohols using NAD+ as the preferred coenzyme, and showed low 3alpha/17beta/20alpha-hydroxysteroid dehydrogenase (HSD) activities. The substrate specificity differs from that of rat NAD+-dependent 3alpha-HSD (AKR1C17) that shares 95% sequence identity with AKR1C16. To elucidate the residues determining the substrate specificity of the enzymes, we performed site-directed mutagenesis of Tyr24, Asp128 and Phe129 of AKR1C16 with the corresponding residues (Ser, Tyr and Leu, respectively) of AKR1C17. The double mutation (Asp128/Tyr-Phe129/Leu) had few effects on the substrate specificity, while the Tyr24/Ser mutant showed only 3alpha-HSD activity, and the triple mutation of the three residues produced an enzyme that had almost the same properties as AKR1C17. The importance of the residue 24 for substrate recognition was verified by the mutagenesis of Ser24/Tyr of AKR1C17 which resulted in a decrease in 3alpha-HSD activity and appearance of 17beta- and 20alpha-HSD activities. AKR1C16 is also 92% identical with rat NAD+-dependent 17beta-HSD (AKR1C24), which possesses Tyr24. The replacement of Asp128, Phe129 and Ser137 of AKR1C16 with the corresponding residues (Glu, Ser and Phe, respectively) of AKR1C24 increased the catalytic efficiency for 17beta- and 20alpha-hydroxysteroids.
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Affiliation(s)
- Satoshi Endo
- Laboratory of Biochemistry, Gifu Pharmaceutical University, Mitahora-higashi, Gifu 502-8585, Japan.
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Gunnarsson C, Jerevall PL, Hammar K, Olsson B, Nordenskjöld B, Jansson A, Stål O. Amplification of HSD17B1 has prognostic significance in postmenopausal breast cancer. Breast Cancer Res Treat 2007; 108:35-41. [PMID: 17457667 DOI: 10.1007/s10549-007-9579-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2007] [Accepted: 03/21/2007] [Indexed: 10/23/2022]
Abstract
In situ synthesis of estrogens is believed to be of great importance for the progression of breast cancer. In postmenopausal women most estrogens are synthesized in peripheral hormone-target tissues from circulating precursor steroids, by the enzymes involved in formation of active estrogens. One of the enzymes involved in this process is 17beta-hydroxysteroid dehydrogenase (17beta-HSD) type 1. This enzyme catalyzes the interconversion of estrone (E1) to the biologically more potent estradiol (E2). The gene coding for 17beta-HSD type 1 (HSD17B1) is located at 17q12-21. The aim of this study was to investigate altered gene copy number of HSD17B1 in breast cancer. We used real-time PCR and examined 387 postmenopausal breast tumors for amplification of HSD17B1, and if an increased mRNA level of this enzyme is associated with amplification of the gene. We also investigated whether amplification of HSD17B1 has a prognostic value. There was a significant correlation between gene copy number of HSD17B1 and mRNA expression level (P = 0.00002). ER-positive patients with amplification of HSD17B1 showed lower breast cancer survival than patients without amplification (P = 0.025). Among ER-negative patients there was no significant correlation between increased gene copy number of HSD17B1 and prognosis. Furthermore, we found that amplification of the gene had prognostic significance in multivariate analysis adjusting for other clinicopathological variables.
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Affiliation(s)
- Cecilia Gunnarsson
- Department of Pathology/Cytology and Genetics, Division of Genetics, Linköping University Hospital, Linkoping, Sweden.
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Olson SH, Bandera EV, Orlow I. Variants in estrogen biosynthesis genes, sex steroid hormone levels, and endometrial cancer: a HuGE review. Am J Epidemiol 2007; 165:235-45. [PMID: 17110639 DOI: 10.1093/aje/kwk015] [Citation(s) in RCA: 88] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Variants in genes involved in estrogen biosynthesis are likely to be important in the etiology of endometrial cancer. This review summarizes data on variants in seven genes in the estrogen biosynthesis pathway and their relation to circulating levels of sex steroid hormones in women and to risk of endometrial cancer. Little or no association was found between genotypes of the cytochrome P-450 genes CYP11A1 (-528[TTTTA]n) or CYP17A1 (-34T/C) or the 17beta-hydroxysteroid dehydrogenase 1 gene HSD17B1 (Ser312Gly) and levels of progesterone, androgens, or estrogens. The position -34T/C variant in CYP17A1 appears to be associated with reduced risk of endometrial cancer, with those homozygous for the variant allele having about half the risk of those homozygous for the wild type. Linked variants in CYP19A1 (intron 4 [TTTA]n, intron 4 [TCT] insertion/deletion, exon 10 C/T) are related to some hormone levels and, based on two studies, to risk of endometrial cancer. For other genes (HSD3B1, HSD3B2, HSD17B2), no information is available on these associations. Results indicate the need to study other variants and haplotypes in these genes, particularly CYP17A1 and CYP19A1, as well as variants in other genes involved in hormone biosynthesis and metabolism pathways. Larger studies or combined studies that allow for investigation of gene-gene and gene-environment interactions are warranted.
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Affiliation(s)
- Sara H Olson
- Department of Epidemiology and Biostatistics, Memorial Sloan-Kettering Cancer Center, New York, NY, USA.
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Jansson A, Carlsson J, Olsson A, Storm P, Margolin S, Gunnarsson C, Stenmark-Askmalm M, Lindblom A, Persson B, Stål O. A new polymorphism in the coding region of exon four in HSD17B2 in relation to risk of sporadic and hereditary breast cancer. Breast Cancer Res Treat 2007; 106:57-64. [PMID: 17260097 DOI: 10.1007/s10549-006-9477-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2006] [Accepted: 12/03/2006] [Indexed: 11/28/2022]
Abstract
In situ synthesis of oestrogens is of great importance in the development and progression of breast cancer. 17beta-hydroxysteroid dehydrogenase (17HSD) type 2 catalyses oxidation from oestradiol to oestrone, and thereby protects the breast epithelial cells from oestradiol. Low expression of 17HSD type 2 has been associated with decreased survival in breast cancer, but no studies have investigated the mechanism behind the low expression. The 17HSD type 2 gene (HSD17B2) was screened for mutations with Single Stranded Conformation Polymorphism (SSCP)-DNA sequencing in 59 sporadic breast cancer cases, 19 hereditary breast cancer cases and seven breast cancer cell lines. DNA samples from 226 healthy individuals were used to identify if changes were previously unknown polymorphisms. No mutation was detected and therefore mutations in HSD17B2 do not explain why some breast tumours exhibit low 17HSD type 2 expression. However, a previously unknown polymorphism was found in exon four (Met226Val). Using molecular modelling, we found that the substituted residue is located at the outer part of the steroid binding site, probably causing minor alterations in the substrate binding. We further studied if the polymorphism contributes to breast cancer susceptibility in a larger material, but did not find an increased risk in the group of 317 sporadic breast cancer patients, 188 breast cancer patients with two close relatives with breast cancer or 122 hereditary breast cancer patients, compared to the healthy control group. We suggest that the detected polymorphism does not contribute to a higher risk of developing breast cancer.
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Affiliation(s)
- Agneta Jansson
- Department of Biomedicine and Surgery, Linköping University, 581 85, Linköping, Sweden.
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Belyaeva OV, Kedishvili NY. Comparative genomic and phylogenetic analysis of short-chain dehydrogenases/reductases with dual retinol/sterol substrate specificity. Genomics 2006; 88:820-830. [PMID: 16860536 DOI: 10.1016/j.ygeno.2006.06.004] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2006] [Revised: 06/08/2006] [Accepted: 06/09/2006] [Indexed: 10/24/2022]
Abstract
Human short-chain dehydrogenases/reductases with dual retinol/sterol substrate specificity (RODH-like enzymes) are thought to contribute to the oxidation of retinol for retinoic acid biosynthesis and to the metabolism of androgenic and neuroactive 3alpha-hydroxysteroids. Here, we investigated the phylogeny and orthology of these proteins to understand better their origins and physiological roles. Phylogenetic and genomic analysis showed that two proteins (11-cis-RDH and RDHL) are highly conserved, and their orthologs can be identified in the lower taxa, such as amphibians and fish. Two other proteins (RODH-4 and 3alpha-HSD) are significantly less conserved. Orthologs for 3alpha-HSD are present in all mammals analyzed, whereas orthologs for RODH-4 can be identified in some mammalian species but not in others due to species-specific gene duplications. Understanding the evolution and divergence of RODH-like enzymes in various vertebrate species should facilitate further investigation of their in vivo functions using animal models.
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Affiliation(s)
- Olga V Belyaeva
- Department of Biochemistry and Molecular Genetics, Schools of Medicine and Dentistry, University of Alabama at Birmingham, 720 20th Street South, 466 Kaul Genetics Building, Birmingham, AL 35294, USA.
| | - Natalia Y Kedishvili
- Department of Biochemistry and Molecular Genetics, Schools of Medicine and Dentistry, University of Alabama at Birmingham, 720 20th Street South, 466 Kaul Genetics Building, Birmingham, AL 35294, USA
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Day JM, Tutill HJ, Newman SP, Purohit A, Lawrence HR, Vicker N, Potter BVL, Reed MJ. 17Beta-hydroxysteroid dehydrogenase Type 1 and Type 2: association between mRNA expression and activity in cell lines. Mol Cell Endocrinol 2006; 248:246-9. [PMID: 16490301 DOI: 10.1016/j.mce.2006.01.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
17Beta-hydroxysteroid dehydrogenases (17beta-HSDs) are a family of enzymes that regulate steroid availability within a tissue by catalysing the interconversion of active and inactive forms. Type 1 is up-regulated in many breast tumours, and is responsible for the reduction of oestrone to active oestradiol which stimulates cell proliferation within the tumour. Type 2 oxidises many active steroids to their inactive forms, including oestradiol to oestrone. In this study, we have compared the mRNA expression and enzyme activities of Type 1 and Type 2 in MCF-7, MDA-MB-231, T47D, JEG3 and 293-EBNA cell lines. Also studied were two cell lines stably expressing transfected Type 1 cDNA. RT-PCR indicated that little Type 1 mRNA is expressed in two of the breast cancer cell lines, MCF-7 and MDA-MB-231, and in 293-EBNA cells, but that expression is much higher in the T47D breast cancer cell line, and in the choriocarcinoma cell line, JEG3. However, a higher level of expression of Type 1 is seen in the transfected cell lines MCF-7.8H and 293-EBNA[His617beta-HSD1]. Activity assays show that there is high association between mRNA expression and enzyme activity. Assays indicate that, with the exception of MDA-MB-231 cells, Type 2 activity is low in these lines. The study of the basal activities of these enzymes will be used in future studies investigating the regulation of the enzymes by endogenous and exogenous factors. An understanding of their regulation in both healthy and malignant tissues may lead to future therapeutic intervention at the regulatory level.
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Affiliation(s)
- Joanna M Day
- Endocrinology and Metabolic Medicine and Sterix Ltd., Imperial College, St. Mary's Hospital, London W2 1NY, UK.
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Tremblay Y, Provost PR. 17Beta-HSD type 5 expression and the emergence of differentiated epithelial Type II cells in fetal lung: a novel role for androgen during the surge of surfactant. Mol Cell Endocrinol 2006; 248:118-25. [PMID: 16337335 DOI: 10.1016/j.mce.2005.10.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Lung maturation is delayed in male fetuses compared to female fetuses. This has been attributed to higher levels of androgens in the male lung. We previously showed that the genes encoding for the 17beta-hydroxysteroid dehydrogenase (HSD) type 5 (conversion of androstenedione in testosterone) and type 2 (the opposite reaction) are, respectively, expressed in the human epithelial Type II (PTII)-like A549 cells and in human lung fibroblasts. Here, we aim to explain the physiological relevance of androgen synthesis by PTII cells. We showed that 17beta-HSD type 2 and type 5 genes are both up-regulated in correlation with the emergence of mature PTII cells in both male and female developing lungs of the fetal mouse. In contrast, the androgen receptor gene is expressed at similar levels in both sexes with no temporal regulation. In conclusion, the expression profile of the 17beta-HSD type 5 gene does not explain the presence of higher levels of androgens in the male fetal lung but that androgen synthesis must be a normal characteristic of mature PTII cells for both sexes. The production of androgens after the emergence of mature PTII cells should negatively regulate PTII cell maturation and thus, a novel and normal role for androgens in cell reprogramming is proposed.
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Affiliation(s)
- Yves Tremblay
- Laboratory of Ontogeny and Reproduction, Laval University Medical Center, Centre de Recherche en Biologie de la Reproduction (CRBR), Department of Obstetrics and Gynecology, Laval University, Que., Canada G1V 4G2.
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Husen B, Huhtinen K, Poutanen M, Kangas L, Messinger J, Thole H. Evaluation of inhibitors for 17beta-hydroxysteroid dehydrogenase type 1 in vivo in immunodeficient mice inoculated with MCF-7 cells stably expressing the recombinant human enzyme. Mol Cell Endocrinol 2006; 248:109-13. [PMID: 16406284 DOI: 10.1016/j.mce.2005.11.042] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
17Beta-hydroxysteroid dehydrogenase (17HSD1) is an enzyme activating estrone (E1) to estradiol (E2). In the present study, a mechanistic animal model was set up for evaluating putative inhibitors for the human enzyme in vivo. Estrogen-dependent MCF-7 human breast carcinoma cells were stably transfected with a plasmid expressing human 17HSD1. These cells formed estrogen-dependent tumors in immunodeficient mice. In the optimized model, tumor sizes were decreased in both ovariectomized and intact vehicle-treated mice, whereas they were maintained or slightly increased in mice supplemented 2 weeks with an appropriate dose of the 17HSD1-substrate E1. Tumor sizes in mice treated with 0.1 micromol/kg/d of E1 were reduced by administering 5 micromol/kg/d of different 17HSD1-inhibitors and a 86% reduction in size was detected with the most potent inhibitor. A dose-response relationship in the inhibitory effect of this compound further confirmed the validity of the model for testing the drug candidates in vivo.
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Affiliation(s)
- B Husen
- Solvay Pharmaceuticals Research Laboratories, PH-REL, Hans-Böckler-Allee 20, 30173 Hannover, Germany.
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