1
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Deng J, Qin L, Zhou Z. Network Pharmacology and Molecular Docking Reveal the Mechanism of Isodon ternifolius (D. Don) Kudo Against Liver Fibrosis. Drug Des Devel Ther 2023; 17:2335-2351. [PMID: 37576085 PMCID: PMC10416792 DOI: 10.2147/dddt.s412818] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 07/18/2023] [Indexed: 08/15/2023] Open
Abstract
Aim Many studies have demonstrated the hepatoprotective or anti-fibrotic effects of Isodon ternifolius, but its pharmacological basis and mechanism remain unclear. In this study, we used in vitro models to validate the predicted results and revealed the potential mechanism of action and active ingredients through network pharmacology methods and molecular docking. Methods The chemical components of Isodon ternifolius were identified by literatures. Potential targets of Isodon ternifolius were predicted by Swiss Target Prediction. The disease targets were collected through the databases of Gene Card. Common targets of Isodon ternifolius and liver fibrosis were obtained by online tool Venny 2.1. PPI protein interaction network was obtained using String database, and target protein interaction network was drawn using Cytoscape software. Signaling pathway enrichment analysis was performed on drug-disease targets with of DAVID database. Results Twenty-one potential active ingredients and 298 potential targets were predicted by Swiss Target Prediction platform. Ninety pathways related to liver fibrosis were obtained by KEGG enrichment. The TLR4, MAPK and PI3K-Akt signaling pathways are mostly associated with liver fibrosis. Molecular docking techniques were used to validate the core target proteins TNF, Akt1, MAPK1, EGFR and TLR4 binding to the ingredients of Isodon ternifolius, which showed that a multitude of ingredients of Isodon ternifolius were able to bind to the above target proteins, especially 2α-hydroxy oleanolic acid and (-)-Lambertic acid. Our experimental validation results showed that Isodon ternifolius inhibited the activation of PI3K-Akt and ERK1/2 signaling pathways. Conclusion Through a network pharmacology approach and in vitro cell assay, we predicted and validated the active compounds of Isodon ternifolius and its potential targets for LF treatment. The results suggest that the mechanism of Isodon ternifolius treating LF by inhibiting angiogenesis may be related to the ERK1/2 and PI3K/Akt signaling pathways.
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Affiliation(s)
- Jiasheng Deng
- School of Pharmacy, Guangxi University of Chinese Medicine, Nanning, Guangxi, People’s Republic of China
| | - Le Qin
- Department of Pharmacy, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi, People’s Republic of China
| | - Zhipin Zhou
- Department of Pharmacy, Liuzhou People’s Hospital, Liuzhou, Guangxi, People’s Republic of China
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2
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Schüler-Toprak S, Skrzypczak M, Gründker C, Ortmann O, Treeck O. Role of Estrogen Receptor β, G-Protein Coupled Estrogen Receptor and Estrogen-Related Receptors in Endometrial and Ovarian Cancer. Cancers (Basel) 2023; 15:2845. [PMID: 37345182 DOI: 10.3390/cancers15102845] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 05/08/2023] [Accepted: 05/16/2023] [Indexed: 06/23/2023] Open
Abstract
Ovarian and endometrial cancers are affected by estrogens and their receptors. It has been long known that in different types of cancers, estrogens activate tumor cell proliferation via estrogen receptor α (ERα). In contrast, the role of ERs discovered later, including ERβ and G-protein-coupled ER (GPER1), in cancer is less well understood, but the current state of knowledge indicates them to have a considerable impact on both cancer development and progression. Moreover, estrogen related receptors (ERRs) have been reported to affect pathobiology of many tumor types. This article provides a summary and update of the current findings on the role of ERβ, GPER1, and ERRs in ovarian and endometrial cancer. For this purpose, original research articles on the role of ERβ, GPER1, and ERRs in ovarian and endometrial cancers listed in the PubMed database have been reviewed.
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Affiliation(s)
- Susanne Schüler-Toprak
- Department of Obstetrics and Gynecology, University Medical Center Regensburg, Caritas-Hospital St. Josef, 93053 Regensburg, Germany
| | - Maciej Skrzypczak
- Second Department of Gynecology, Medical University of Lublin, 20-954 Lublin, Poland
| | - Carsten Gründker
- Department of Gynecology and Obstetrics, University Medical Center Göttingen, 37075 Göttingen, Germany
| | - Olaf Ortmann
- Department of Obstetrics and Gynecology, University Medical Center Regensburg, Caritas-Hospital St. Josef, 93053 Regensburg, Germany
| | - Oliver Treeck
- Department of Obstetrics and Gynecology, University Medical Center Regensburg, Caritas-Hospital St. Josef, 93053 Regensburg, Germany
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3
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Huang S, Qi B, Yang L, Wang X, Huang J, Zhao Y, Hu Y, Xiao W. Phytoestrogens, novel dietary supplements for breast cancer. Biomed Pharmacother 2023; 160:114341. [PMID: 36753952 DOI: 10.1016/j.biopha.2023.114341] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 01/26/2023] [Accepted: 01/27/2023] [Indexed: 02/08/2023] Open
Abstract
While endocrine therapy is considered as an effective way to treat breast cancer, it still faces many challenges, such as drug resistance and individual discrepancy. Therefore, novel preventive and therapeutic modalities are still in great demand to decrease the incidence and mortality rate of breast cancer. Numerous studies suggested that G protein-coupled estrogen receptor (GPER), a membrane estrogen receptor, is a potential target for breast cancer prevention and treatment. It was also shown that not only endogenous estrogens can activate GPERs, but many phytoestrogens can also function as selective estrogen receptor modulators (SERMs) to interact GPERs. In this review, we discussed the possible mechanisms of GPERs pathways and shed a light of developing novel phytoestrogens based dietary supplements against breast cancers.
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Affiliation(s)
- Shuo Huang
- School of Clinical Medicine, Chengdu University of TCM, Chengdu 610072, Sichuan, China
| | - Baowen Qi
- South China Hospital of Shenzhen University, No. 1, Fuxin Road, Longgang District, Shenzhen, 518116, P. R. China; BioCangia Inc., 205 Torbay Road, Markham, ON L3R 3W4, Canada
| | - Ling Yang
- School of Clinical Medicine, Chengdu University of TCM, Chengdu 610072, Sichuan, China
| | - Xue Wang
- School of Clinical Medicine, Chengdu University of TCM, Chengdu 610072, Sichuan, China
| | - Jing Huang
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Ya Zhao
- School of Clinical Medicine, Chengdu University of TCM, Chengdu 610072, Sichuan, China
| | - Yonghe Hu
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China; Department of Pharmacy, The General Hospital of Western Theater Command, Chengdu 610083, Sichuan, China.
| | - Wenjing Xiao
- Department of Pharmacy, The General Hospital of Western Theater Command, Chengdu 610083, Sichuan, China.
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4
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Guha P, Sen K, Chowdhury P, Mukherjee D. Estrogen receptors as potential therapeutic target in endometrial cancer. J Recept Signal Transduct Res 2023; 43:19-26. [PMID: 36883690 DOI: 10.1080/10799893.2023.2187643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
Endometrial cancer (EC) is one of the most common gynecological carcinomas in both developed and developing countries. Majority of the gynecological malignancies are hormonally driven where estrogen signaling acts as an oncogenic signal. Estrogen's effects are mediated via classical nuclear estrogen receptors; estrogen receptor alpha and beta (ERα and ERβ) and a trans-membrane G protein-coupled estrogen receptor (GPR30 and GPER). ERs and GPER through ligand binding triggers multiple downstream signaling pathways causing cell cycle regulation, cell differentiation, migration, and apoptosis in various tissues including endometrium. Although the molecular aspect of estrogen function in ER-mediated signaling is now partly understood, the same is not true for GPER-mediated signaling in endometrial malignancies. Understanding the physiological roles of ERα and GPER in EC biology therefore leads to the identification of some novel therapeutic targets. Here we review the effect of estrogen signaling through ERα-and GPER in EC, major types, and some affordable treatment approaches for endometrial tumor patients which has interesting implications in understanding uterine cancer progression.
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Affiliation(s)
- Payel Guha
- Department of Zoology, University of Kalyani, Kalyani, India.,Department of Molecular Biology and Bioinformatics, Tripura University, Suryamaninagar, India
| | - Koushik Sen
- Department of Zoology, University of Kalyani, Kalyani, India.,Department of Zoology, Jhargram Raj College, Jhargram, India
| | | | - Dilip Mukherjee
- Department of Zoology, University of Kalyani, Kalyani, India
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5
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Wang M, Tong K, Chen Z, Wen Z. Mechanisms of 15-Epi-LXA4-Mediated HO-1 in Cytoprotection Following Inflammatory Injury. J Surg Res 2023; 281:245-255. [PMID: 36209683 DOI: 10.1016/j.jss.2022.08.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 07/07/2022] [Accepted: 08/16/2022] [Indexed: 11/07/2022]
Abstract
INTRODUCTION Heme oxygenase-1 (HO-1) is a protective protein in oxidative stress response. LXA4 is an "inflammatory braking signal" that is widely studied at present. The purpose of this study was to elucidate that LXA4 can protect cells by inducing HO-1 in human pulmonary microvascular endothelial cells (HPMECs) as in vitro model to explain acute lung injury after severe acute pancreatitis. METHODS This study was performed in two parts: (1) To investigate the mechanisms of lipoxin A4-induced HO-1 expression in vitro, the study subjects were divided into four groups: a control group, LXA4 group (50 ng/mL LXA4), inhibitor group (50 ng/mL LXA4 + 20 μM LY294002 or 50 ng/mL LXA4 + 2 nmol/mL Bis II), and agonist group (50 ng/mL insulin-like growth factor 1, PMA). Western blotting was used to detect the expression of p-Akt, Akt, protein kinase C (PKC), p-Nrf2, Nrf2, and Keap1, and the location of Nrf2 was detected using immunofluorescence. The activation of antioxidant responsive element induced by Nrf2 was detected using Electrophoretic Mobility Shift Assay and (2) to investigate the cytoprotection of HO-1 induced by LXA4 in vitro, the subjects were divided into four groups: a control group, tumor necrosis factor α (TNF-α) group (50 ng/mL), LXA4 group (50 ng/mL TNF-α + 50 ng/mL LXA4), and Zinc protoporphyrin IX group (pretreated with 0.5 μM Zinc protoporphyrin IXfor 12 h, followed by 50 ng/mL TNF-α + 50 ng/mL LXA4). BCECF/AM-labeled THP-1 cells were used to analyze the adhesion of HPMECs, and a mitochondrial membrane potential assay kit with JC-1 was used to analyze the apoptosis of HPMECs. RESULTS In part one, (1) LXA4 upregulated the expression of HO-1 in a dose-dependent manner and (2) LXA4 activated the PI3K/Akt and PKC pathways and modulated the phosphorylation and subsequent depolymerization of Nrf2 from Keap1, promoting the translocation of Nrf2 to the nucleus. In part two, (1) LXA4 reversed the changes in mitochondrial membrane potential to alleviate apoptosis in HPMECs and (2) LXA4 attenuated the adhesion of HPMECs induced by TNF-α. CONCLUSIONS LXA4 can activate the PI3K/Akt and PKC pathways and induce the phosphorylation of Nrf2, resulting in the upregulation of HO-1. In addition, LXA4 alleviates adhesion and protects mitochondrial function by upregulating the expression of HO-1, which exerts cytoprotection in severe acute pancreatitis-induced lung injury.
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Affiliation(s)
- Meng Wang
- Department of Hepatopancreatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Kun Tong
- Department of Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Zhe Chen
- Department of Hepatopancreatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Zhengde Wen
- Department of Hepatopancreatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China; Wenzhou Key Laboratory of perioperative medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China.
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6
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Khan MZI, Uzair M, Nazli A, Chen JZ. An overview on Estrogen receptors signaling and its ligands in breast cancer. Eur J Med Chem 2022; 241:114658. [PMID: 35964426 DOI: 10.1016/j.ejmech.2022.114658] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 07/31/2022] [Accepted: 08/01/2022] [Indexed: 02/07/2023]
Abstract
Estrogen governs the regulations of various pathological and physiological actions throughout the body in both males and females. Generally, 17β-estradiol an endogenous estrogen is responsible for different health problems in pre and postmenopausal women. The major activities of endogenous estrogen are executed by nuclear estrogen receptors (ERs) ERα and ERβ while non-genomic cytoplasmic pathways also govern cell growth and apoptosis. Estrogen accomplished a fundamental role in the formation and progression of breast cancer. In this review, we have hyphenated different studies regarding ERs and a thorough and detailed study of estrogen receptors is presented. This review highlights different aspects of estrogens ranging from receptor types, their isoforms, structures, signaling pathways of ERα, ERβ and GPER along with their crystal structures, pathological roles of ER, ER ligands, and therapeutic strategies to overcome the resistance.
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Affiliation(s)
| | - Muhammad Uzair
- School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, 450001, China
| | - Adila Nazli
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Jian-Zhong Chen
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, China.
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7
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GPR30 Activation Promotes the Progression of Gastric Cancer and Plays a Significant Role in the Anti-GC Effect of Huaier. JOURNAL OF ONCOLOGY 2022; 2022:2410530. [PMID: 35096058 PMCID: PMC8791733 DOI: 10.1155/2022/2410530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 12/23/2021] [Indexed: 12/09/2022]
Abstract
Gastric cancer (GC) is one of the most common types of cancer. The n-butanol extract of Huaier (NEH) is the alcohol-soluble part extracted by the systematic solvent method, which is effective against gastric cancer (GC). However, the mechanism of action of NEH remains unclear. In this study, we aim to evaluate the clinical relevance of GPR30 expression in GC patients and the role of the GPR30/PI3K/AKT signalling pathway in the anti-GC effect of NEH. The expression of GPR30 was examined using immunohistochemistry. Cell counting kit 8 (CCK-8) assay, wound healing, and transwell experiments were used to investigate the viability, migration, and invasion of gastric cancer cells. Western blotting was used to detect the expression of GPR30 and its downstream signalling molecules of the PI3K/AKT signalling pathway. Gastric cancer patient-derived xenografts (PDX) mouse model was used to evaluate the antitumor effect of NEH in vivo. In addition, the graded doses and the maximum tolerated dose of NEH were administered intraperitoneally into the mice for acute toxicity test. We demonstrate that GPR30 expression in GC tissues was significantly higher than that in corresponding adjacent noncancerous tissues and the expression of GPR30 was correlated with a poor prognosis in GC patients. Moreover, GPR30 expression was involved in the migration and invasion of GC cells in vitro. Additionally, we found that NEH can suppress the growth of GC in patient-derived xenograft tumors in vivo. Furthermore, NEH inhibited the proliferation, migration, and invasion in GC cells in a concentration-dependent manner through inhibiting the GPR30-mediated PI3K/AKT signalling pathway in vitro. Acute toxicity test showed that NEH caused no toxic reaction or death and the maximum tolerated dose of NEH in mice was greater than 1600 mg/kg. Our results demonstrate that the high expression of GPR30 is an independent factor of poor prognosis in patients with GC and NEH could be a new agent for the treatment of gastric cancer.
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8
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OUP accepted manuscript. Brief Funct Genomics 2022; 21:310-324. [DOI: 10.1093/bfgp/elac010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 04/03/2022] [Accepted: 04/22/2022] [Indexed: 11/14/2022] Open
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9
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Sirohi VK, Medrano TI, Mesa AM, Kannan A, Bagchi IC, Cooke PS. Regulation of AKT Signaling in Mouse Uterus. Endocrinology 2022; 163:bqab233. [PMID: 34791100 PMCID: PMC8667855 DOI: 10.1210/endocr/bqab233] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Indexed: 01/02/2023]
Abstract
17β-estradiol (E2) treatment of ovariectomized adult mice stimulates the uterine PI3K-AKT signaling pathway and epithelial proliferation through estrogen receptor 1 (ESR1). However, epithelial proliferation occurs independently of E2/ESR1 signaling in neonatal uteri. Similarly, estrogen-independent uterine epithelial proliferation is seen in adulthood in mice lacking Ezh2, critical for histone methylation, and in wild-type (WT) mice treated neonatally with estrogen. The role of AKT in estrogen-independent uterine epithelial proliferation was the focus of this study. Expression of the catalytically active phosphorylated form of AKT (p-AKT) and epithelial proliferation were high in estrogen receptor 1 knockout and WT mice at postnatal day 6, when E2 concentrations were low, indicating that neither ESR1 nor E2 are essential for p-AKT expression and epithelial proliferation in these mice. However, p-AKT levels and proliferation remained estrogen responsive in preweaning WT mice. Expression of p-AKT and proliferation were both high in uterine luminal epithelium of mice estrogenized neonatally and ovariectomized during adulthood. Increased expression of phosphorylated (inactive) EZH2 was also observed. Consistent with this, Ezh2 conditional knockout mice show ovary-independent uterine epithelial proliferation and high epithelial p-AKT. Thus, adult p-AKT expression is constitutive and E2/ESR1 independent in both model systems. Finally, E2-induced p-AKT expression and normal uterine proliferation did not occur in mice lacking membrane (m)ESR1, indicating a key role for membrane ESR1 in AKT activation. These findings emphasize the importance of AKT activation in promoting uterine epithelial proliferation even when that proliferation is not E2/ESR1 dependent and further indicate that p-AKT can be uncoupled from E2/ESR1 signaling in several experimental scenarios.
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Affiliation(s)
- Vijay K Sirohi
- Department of Physiological Sciences, University of Florida, Gainesville, FL, USA
| | - Theresa I Medrano
- Department of Physiological Sciences, University of Florida, Gainesville, FL, USA
| | - Ana M Mesa
- Department of Physiological Sciences, University of Florida, Gainesville, FL, USA
| | - Athilakshmi Kannan
- Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Indrani C Bagchi
- Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Paul S Cooke
- Department of Physiological Sciences, University of Florida, Gainesville, FL, USA
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10
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Molecular Proof of a Clinical Concept: Expression of Estrogen Alpha-, Beta-Receptors and G Protein-Coupled Estrogen Receptor 1 (GPER) in Histologically Assessed Common Nevi, Dysplastic Nevi and Melanomas. Medicina (B Aires) 2021; 57:medicina57111228. [PMID: 34833446 PMCID: PMC8621316 DOI: 10.3390/medicina57111228] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 10/31/2021] [Accepted: 11/02/2021] [Indexed: 11/30/2022] Open
Abstract
Background and Objectives: Epidemiologic data show significant differences in melanoma incidence and outcomes between sexes. The role of hormonal receptors in the pathogenesis of melanocytic lesions remains unclear, thus we performed this study aiming to assess estrogen receptors expression in different melanocytic lesions. Materials and Methods: We performed a cross-sectional study that included 73 consecutively excised melanocytic lesions. Estrogen receptor alpha (ERα), beta (ERβ), and G-protein coupled estrogen receptor (GPER) expression was analyzed in melanocytes and keratinocytes of common nevi, dysplastic nevi, melanoma, healthy skin margin, and in sebaceous and sweat gland cells. Results: ERβ expression was higher in dysplastic nevi margin melanocytes compared to common nevi (p = 0.046) and in dysplastic nevi keratinocytes compared to melanoma keratinocytes (p = 0.021). ERβ expression was significantly higher in margin melanocytes compared to melanoma melanocytes (p = 0.009). No difference in ERβ expression was shown between melanocytes of three types of lesions. GPER expression was higher in nuclei and cytoplasm of dysplastic nevi (p = 0.02 and p = 0.036 respectively) and at the margin compared to melanoma. GPER expression was lower in sebaceous glands of tissue surrounding common nevi (p = 0.025) compared to dysplastic nevi. GPER expression was higher in skin margin tissue melanocytes (p = 0.016 nuclear, p = 0.029 cytoplasmic) compared to melanoma melanocytes. There were no differences in ERα expression between the melanocytic lesions. Conclusion: Further large-scale studies are warranted to investigate the potential role of ERβ and GPER in the pathogenesis of melanocytic lesions.
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11
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Popescu M, Feldman TB, Chitnis T. Interplay Between Endocrine Disruptors and Immunity: Implications for Diseases of Autoreactive Etiology. Front Pharmacol 2021; 12:626107. [PMID: 33833678 PMCID: PMC8021784 DOI: 10.3389/fphar.2021.626107] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 01/19/2021] [Indexed: 12/12/2022] Open
Abstract
The sex-bias of disease susceptibility has remained a puzzling aspect of several autoimmune conditions, including post-infection viral autoimmunity. In the last half of the twentieth century, the incidence rate of female-biased autoimmunity has steadily increased independent of medical advances. This has suggested a role for environmental factors, such as endocrine disrupting chemicals, which have been described to interfere with endocrine signaling. Endocrine involvement in the proper function of innate and adaptive immunity has also been defined, however, these two areas have rarely been reviewed in correlation. In addition, studies addressing the effects of endocrine disruptors have reported findings resulting from a broad range of exposure doses, schedules and models. This experimental heterogeneity adds confusion and may mislead the translation of findings to human health. Our work will normalize results across experiments and provide a necessary summary relevant to human exposure. Through a novel approach, we describe how different categories of ubiquitously used environmental endocrine disruptors interfere with immune relevant endocrine signaling and contribute to autoimmunity. We hope this review will guide identification of mechanisms and concentration-dependent EDC effects important not only for the sex-bias of autoimmunity, but also for other conditions of immune dysfunction, including post-infection autoreactivity such as may arise following severe acute respiratory syndrome coronavirus 2, Epstein-Barr virus, Herpes Simplex virus.
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Affiliation(s)
- Maria Popescu
- Harvard Medical School, Boston, MA, United States.,Brigham Multiple Sclerosis Center, Department of Neurology, Brigham and Women's Hospital, Boston, MA, United States.,Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Boston, MA, United States
| | - Talia B Feldman
- Brigham Multiple Sclerosis Center, Department of Neurology, Brigham and Women's Hospital, Boston, MA, United States.,Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Boston, MA, United States
| | - Tanuja Chitnis
- Harvard Medical School, Boston, MA, United States.,Brigham Multiple Sclerosis Center, Department of Neurology, Brigham and Women's Hospital, Boston, MA, United States.,Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Boston, MA, United States
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12
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Chuang SC, Chen CH, Chou YS, Ho ML, Chang JK. G Protein-Coupled Estrogen Receptor Mediates Cell Proliferation through the cAMP/PKA/CREB Pathway in Murine Bone Marrow Mesenchymal Stem Cells. Int J Mol Sci 2020; 21:ijms21186490. [PMID: 32899453 PMCID: PMC7555423 DOI: 10.3390/ijms21186490] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 08/31/2020] [Accepted: 09/03/2020] [Indexed: 01/12/2023] Open
Abstract
Estrogen is an important hormone to regulate skeletal physiology via estrogen receptors. The traditional estrogen receptors are ascribed to two nuclear estrogen receptors (ERs), ERα and ERβ. Moreover, G protein-coupled estrogen receptor-1 (GPER-1) was reported as a membrane receptor for estrogen in recent years. However, whether GPER-1 regulated osteogenic cell biology on skeletal system is still unclear. GPER-1 is expressed in growth plate abundantly before puberty but decreased abruptly since the very late stage of puberty in humans. It indicates GPER-1 might play an important role in skeletal growth regulation. GPER-1 expression has been confirmed in osteoblasts, osteocytes and chondrocytes, but its expression in mesenchymal stem cells (MSCs) has not been confirmed. In this study, we hypothesized that GPER-1 is expressed in bone MSCs (BMSC) and enhances BMSC proliferation. The cultured tibiae of neonatal rat and murine BMSCs were tested in our study. GPER-1-specific agonist (G-1) and antagonist (G-15), and GPER-1 siRNA (siGPER-1) were used to evaluate the downstream signaling pathway and cell proliferation. Our results revealed BrdU-positive cell counts were higher in cultured tibiae in the G-1 group. The G-1 also enhanced the cell viability and proliferation, whereas G-15 and siGPER-1 reduced these activities. The cAMP and phosphorylation of CREB were enhanced by G-1 but inhibited by G-15. We further demonstrated that GPER-1 mediates BMSC proliferation via the cAMP/PKA/p-CREB pathway and subsequently upregulates cell cycle regulators, cyclin D1/cyclin-dependent kinase (CDK) 6 and cyclin E1/CDK2 complex. The present study is the first to report that GPER-1 mediates BMSC proliferation. This finding indicates that GPER-1 mediated signaling positively regulates BMSC proliferation and may provide novel insights into addressing estrogen-mediated bone development.
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Affiliation(s)
- Shu-Chun Chuang
- Orthopaedic Research Center, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (S.-C.C.); (C.-H.C.); (Y.-S.C.)
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Chung-Hwan Chen
- Orthopaedic Research Center, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (S.-C.C.); (C.-H.C.); (Y.-S.C.)
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Orthopedics, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Division of Adult Reconstruction Surgery, Department of Orthopedics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Orthopedics, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Institute of Medical Science and Technology, National Sun Yat-Sen University, Kaohsiung 807, Taiwan
| | - Ya-Shuan Chou
- Orthopaedic Research Center, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (S.-C.C.); (C.-H.C.); (Y.-S.C.)
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Mei-Ling Ho
- Orthopaedic Research Center, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (S.-C.C.); (C.-H.C.); (Y.-S.C.)
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Medicinal Research, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Physiology, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Marine Biotechnology and Resources, National Sun Yat-Sen University, Kaohsiung 807, Taiwan
- Correspondence: (M.-L.H.); (J.-K.C.); Tel.: +886-7-3121101-2553 (M.-L.H.&J.-K.C.); Fax: +886-7-3219452 (M.-L.H.&J.-K.C.)
| | - Je-Ken Chang
- Orthopaedic Research Center, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (S.-C.C.); (C.-H.C.); (Y.-S.C.)
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Orthopedics, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Division of Adult Reconstruction Surgery, Department of Orthopedics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Correspondence: (M.-L.H.); (J.-K.C.); Tel.: +886-7-3121101-2553 (M.-L.H.&J.-K.C.); Fax: +886-7-3219452 (M.-L.H.&J.-K.C.)
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13
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Estrogen Receptors and Estrogen-Induced Uterine Vasodilation in Pregnancy. Int J Mol Sci 2020; 21:ijms21124349. [PMID: 32570961 PMCID: PMC7352873 DOI: 10.3390/ijms21124349] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 06/10/2020] [Accepted: 06/15/2020] [Indexed: 12/16/2022] Open
Abstract
Normal pregnancy is associated with dramatic increases in uterine blood flow to facilitate the bidirectional maternal–fetal exchanges of respiratory gases and to provide sole nutrient support for fetal growth and survival. The mechanism(s) underlying pregnancy-associated uterine vasodilation remain incompletely understood, but this is associated with elevated estrogens, which stimulate specific estrogen receptor (ER)-dependent vasodilator production in the uterine artery (UA). The classical ERs (ERα and ERβ) and the plasma-bound G protein-coupled ER (GPR30/GPER) are expressed in UA endothelial cells and smooth muscle cells, mediating the vasodilatory effects of estrogens through genomic and/or nongenomic pathways that are likely epigenetically modified. The activation of these three ERs by estrogens enhances the endothelial production of nitric oxide (NO), which has been shown to play a key role in uterine vasodilation during pregnancy. However, the local blockade of NO biosynthesis only partially attenuates estrogen-induced and pregnancy-associated uterine vasodilation, suggesting that mechanisms other than NO exist to mediate uterine vasodilation. In this review, we summarize the literature on the role of NO in ER-mediated mechanisms controlling estrogen-induced and pregnancy-associated uterine vasodilation and our recent work on a “new” UA vasodilator hydrogen sulfide (H2S) that has dramatically changed our view of how estrogens regulate uterine vasodilation in pregnancy.
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14
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Shi D, Zhao P, Cui L, Li H, Sun L, Niu J, Chen M. Inhibition of PI3K/AKT molecular pathway mediated by membrane estrogen receptor GPER accounts for cryptotanshinone induced antiproliferative effect on breast cancer SKBR-3 cells. BMC Pharmacol Toxicol 2020; 21:32. [PMID: 32357920 PMCID: PMC7193699 DOI: 10.1186/s40360-020-00410-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Accepted: 04/14/2020] [Indexed: 12/30/2022] Open
Abstract
Background Breast cancer is the most frequently diagnosed malignancy among women and the second leading cause of cancer death worldwide. Among which nuclear estrogen receptor (nER) negative breast cancer is always with much poor prognosis. Recently, membrane G protein coupled estrogen receptor (GPER), a newly recognized estrogen receptor has been documented to take essential part in the development and treatment of breast cancer. The present study was designed to investigate the anti nER negative breast cancer effect of cryptotanshinone (CPT), an important active compound of traditional Chinese medicine Danshen and its possible molecular pathway. Methods The following in vitro tests were performed in nER negative but GPER positive breast cancer SKBR-3 cells. The effect of CPT on cell proliferation rate and cell cycle distribution was evaluated by MTT cell viability test and flow cytometry assay respectively. The role of PI3K/AKT pathway and the mediated function of GPER were tested by western blot and immunofluorescence. Technique of gene silence and the specific GPER agonist G-1 and antagonist G-15 were employed in the experiments to further verify the function of GPER in mediating the anticancer role of CPT. Results The results showed that proliferation of SKBR-3 cells could be blocked by CPT in a time and dose dependent manner. CPT could also exert antiproliferative activities by arresting cell cycle progression in G1 phase and down regulating the expression level of cyclin A, cyclin B, cyclin D and cyclin-dependent kinase 2 (CDK2). The antiproliferative effect of CPT was further enhanced by G-1 and attenuated by G-15. Results of western blot and immunofluorescence showed that expression of PI3K and p-AKT could be downregulated by CPT and such effects were mediated by GPER which were further demonstrated by gene silence test. Conclusion The current study showed that the antiproliferative action of CPT on SKBR-3 cells was realized by inhibition of GPER mediated PI3K/AKT pathway. These findings provide further validation of GPER serving as useful therapeutic target.
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Affiliation(s)
- Danning Shi
- School of Life Sciences, Beijing University of Chinese Medicine, No. 11, Bei San Huan Dong Lu, Chaoyang District, Beijing, 100029, China
| | - Piwen Zhao
- School of Life Sciences, Beijing University of Chinese Medicine, No. 11, Bei San Huan Dong Lu, Chaoyang District, Beijing, 100029, China.
| | - Lixia Cui
- School of Life Sciences, Beijing University of Chinese Medicine, No. 11, Bei San Huan Dong Lu, Chaoyang District, Beijing, 100029, China
| | - Hongbo Li
- Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, 100078, China
| | - Liping Sun
- School of Life Sciences, Beijing University of Chinese Medicine, No. 11, Bei San Huan Dong Lu, Chaoyang District, Beijing, 100029, China
| | - Jianzhao Niu
- School of Traditional Chinese, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Meng Chen
- School of Traditional Chinese, Beijing University of Chinese Medicine, Beijing, 100029, China
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15
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Zhao B, Xiong Y, Zhang Y, Jia L, Zhang W, Xu X. Rutin promotes osteogenic differentiation of periodontal ligament stem cells through the GPR30-mediated PI3K/AKT/mTOR signaling pathway. Exp Biol Med (Maywood) 2020; 245:552-561. [PMID: 32036685 DOI: 10.1177/1535370220903463] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Rutin is one of the flavonoids found in fruits and vegetables. Recent reports have revealed that rutin is a major player in proliferation and bone development. However, data on how rutin regulates the proliferation of periodontal ligament stem cells (PDLSCs), as well as the differentiation of osteogenic cells are scanty. Here, our findings showed that rutin enhanced PDLSCs proliferation, increased ALP activity, and matrix mineralization. Moreover, rutin significantly promoted the expression of osteogenic genes and elevated phosphorylated AKT and mTOR. Treatment with LY294002 reversed these effects by inhibiting PI3K. We also found that the expression levels of GPR30 were increased by rutin. Interestingly, this upregulation was not altered after the addition of LY294002. In addition, G15, a selective antagonist of GPR30, could reduce the beneficial effects induced by rutin and interfere with the modulation of PI3K/AKT/mTOR signal transduction. Collectively, our findings revealed that rutin increased proliferation and osteogenic differentiation of PDLSCs through GPR30-mediated PI3K/AKT/mTOR signal transduction. Therefore, it could be deduced that rutin as a certain flavonoid possesses therapeutic value for periodontal bone regeneration and tissue engineering. Impact statement In our study, the effects and mechanisms of rutin on the osteogenic differentiation and proliferation of PDLSCs were investigated. Our findings might provide basic knowledge and guidance to understand and use rutin in the bioengineering of the periodontal tissues and regeneration of bones. The following is a short description of the main findings: rutin promotes the osteogenic differentiation and proliferation of PDLSCs; PI3K/AKT/mTOR signal pathway mediates the effects of rutin on PDLSCs; rutin activates PI3K/AKT/mTOR signal pathway via GPR30.
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Affiliation(s)
- Bin Zhao
- School of Stomatology, Shandong University, Jinan 250012, P.R. China.,Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Jinan 250012, P.R. China
| | - Yixuan Xiong
- School of Stomatology, Shandong University, Jinan 250012, P.R. China.,Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Jinan 250012, P.R. China
| | - Yunpeng Zhang
- School of Stomatology, Shandong University, Jinan 250012, P.R. China.,Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Jinan 250012, P.R. China.,Department of Oral Implantology, the Affiliated Stomatology Hospital of Kunming Medical University, Kunming 100191, P.R. China
| | - Linglu Jia
- School of Stomatology, Shandong University, Jinan 250012, P.R. China.,Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Jinan 250012, P.R. China
| | - Wenjing Zhang
- School of Stomatology, Shandong University, Jinan 250012, P.R. China.,Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Jinan 250012, P.R. China
| | - Xin Xu
- School of Stomatology, Shandong University, Jinan 250012, P.R. China.,Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Jinan 250012, P.R. China
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16
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Hernández-Silva CD, Villegas-Pineda JC, Pereira-Suárez AL. Expression and Role of the G Protein-Coupled Estrogen Receptor (GPR30/GPER) in the Development and Immune Response in Female Reproductive Cancers. Front Endocrinol (Lausanne) 2020; 11:544. [PMID: 32973677 PMCID: PMC7468389 DOI: 10.3389/fendo.2020.00544] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Accepted: 07/06/2020] [Indexed: 12/22/2022] Open
Abstract
Cancer is a major public health issue and represents the second leading cause of death in women worldwide, as female reproductive-related neoplasms are the main cause of incidence and mortality. Female reproductive cancers have a close relationship to estrogens, the principal female sex steroid hormones. Estrogens exert their actions by the nuclear estrogen receptor alpha (ERα) and estrogen receptor beta (ERβ). ERα, and ERβ act as transcription factors mediating genomic effects. Besides, the G protein-coupled estrogen receptor (GPER, formerly known as GPR30) was recently described as a seven-transmembrane receptor that mediates non-genomic estrogenic signaling, including calcium mobilization, cAMP synthesis, cleavage of matrix metalloproteinases, transactivation of epidermal growth factor receptor (EGFR), and the subsequent activation of PI3K and MAPK signaling pathways, which are the reasons why it is related to cellular processes, such as cell-cycle progression, cellular proliferation, differentiation, apoptosis, migration, and invasion. Since its discovery, selective agonists and antagonists have been found and developed. GPER has been implicated in a variety of hormone-responsiveness tumors, such as breast, endometrial, ovarian, cervical, prostate, and testicular cancer as well as lung, hepatic, thyroid, colorectal, and adrenocortical cancers. Nevertheless, GPER actions in cancer are still debatable due to the conflicting information that has been reported to date, since many reports indicate that activation of this receptor can modulate carcinogenesis. In contrast, many others show that its activation inhibits tumor activity. Besides, estrogens play an essential role in the regulation of the immune system, but little information exists about the role of GPER activation on its modulation within cancer context. This review focuses on the role that the stimulation of GPER plays in female reproductive neoplasms, specifically breast, endometrial, ovarian, and cervical cancers, in its tumor activity and immune response regulation.
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Affiliation(s)
- Christian David Hernández-Silva
- Doctorado en Ciencias Biomédicas, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Mexico
| | - Julio César Villegas-Pineda
- Doctorado en Ciencias Biomédicas, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Mexico
- Laboratorio de Inmunología, Departamento de Fisiología, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Mexico
| | - Ana Laura Pereira-Suárez
- Laboratorio de Inmunología, Departamento de Fisiología, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Mexico
- Instituto de Investigación en Ciencias Biomédicas, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Mexico
- *Correspondence: Ana Laura Pereira-Suárez
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Luo J, Liu D. Does GPER Really Function as a G Protein-Coupled Estrogen Receptor in vivo? Front Endocrinol (Lausanne) 2020; 11:148. [PMID: 32296387 PMCID: PMC7137379 DOI: 10.3389/fendo.2020.00148] [Citation(s) in RCA: 93] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 03/03/2020] [Indexed: 12/25/2022] Open
Abstract
Estrogen can elicit pleiotropic cellular responses via a diversity of estrogen receptors (ERs)-mediated genomic and rapid non-genomic mechanisms. Unlike the genomic responses, where the classical nuclear ERα and ERβ act as transcriptional factors following estrogen binding to regulate gene transcription in estrogen target tissues, the non-genomic cellular responses to estrogen are believed to start at the plasma membrane, leading to rapid activation of second messengers-triggered cytoplasmic signal transduction cascades. The recently acknowledged ER, GPR30 or GPER, was discovered in human breast cancer cells two decades ago and subsequently in many other cells. Since its discovery, it has been claimed that estrogen, ER antagonist fulvestrant, as well as some estrogenic compounds can directly bind to GPER, and therefore initiate the non-genomic cellular responses. Various recently developed genetic tools as well as chemical ligands greatly facilitated research aimed at determining the physiological roles of GPER in different tissues. However, there is still lack of evidence that GPER plays a significant role in mediating endogenous estrogen action in vivo. This review summarizes current knowledge about GPER, including its tissue expression and cellular localization, with emphasis on the research findings elucidating its role in health and disease. Understanding the role of GPER in estrogen signaling will provide opportunities for the development of new therapeutic strategies to strengthen the benefits of estrogen while limiting the potential side effects.
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Affiliation(s)
- Jing Luo
- Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou, China
- Department of Human Nutrition, Foods and Exercise, College of Agricultural and Life Sciences, Virginia Tech, Blacksburg, VA, United States
| | - Dongmin Liu
- Department of Human Nutrition, Foods and Exercise, College of Agricultural and Life Sciences, Virginia Tech, Blacksburg, VA, United States
- *Correspondence: Dongmin Liu
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18
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Kim GY, Suh J, Jang JH, Kim DH, Park OJ, Park SK, Surh YJ. Genistein Inhibits Proliferation of BRCA1 Mutated Breast Cancer Cells: The GPR30-Akt Axis as a Potential Target. J Cancer Prev 2019; 24:197-207. [PMID: 31950019 PMCID: PMC6951321 DOI: 10.15430/jcp.2019.24.4.197] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 12/16/2019] [Accepted: 12/16/2019] [Indexed: 12/31/2022] Open
Abstract
Background BRCA1 mutated breast cancer cells exhibit the elevated cell proliferation and the higher metastatic potential. G protein-coupled receptor 30 (GPR30) has been shown to regulate growth of hormonally responsive cancers, such as ovarian and breast cancers, and high expression of GPR30 is found in estrogen receptor (ER)-negative breast cancer cells. ER-negative breast cancer patients often have a mutation in the tumor suppressor gene, BRCA1. This study explored antiproliferative effects of genistein, a chemopreventive isoflavone present in legumes, and underlying molecular mechanisms in triple negative breast cancer cells with or without functionally active BRCA1. Methods Expression of BRCA1, GPR30 and Nrf2 was measured by Western blot analysis. Reactive oxygen species (ROS) accumulation was monitored by using the fluorescence-generating probe, 2’,7’-dichlorofluorescein diacetate. The effects of genistein on breast cancer cell viability and proliferation were assessed by the MTT, migration and clonogenic assays. Results The expression of GPR30 was dramatically elevated at both transcriptional and translational levels in BRCA1 mutated breast cancer cells compared to cells with wild-type BRCA1. Notably, there was diminished Akt phosporylation in GPR30 silenced cells. Treatment of BRCA1 silenced breast cancer cells with genistein resulted in the down-regulation of GPR30 expression and the inhibition of Akt phosphorylation as well as the reduced cell viability, migration and colony formation. Genistein caused cell cycle arrest at the G2/M phase in BRCA1-mutant cells through down-regulation of cyclin B1 expression. Furthermore, BRCA1-mutant breast cancer cells exhibited higher levels of intracellular ROS than those in the wild-type cells. Genistein treatment lowered the ROS levels through up-regulation of Nrf2 expression. Conclusions Lack of functional BRCA1 activates GPR30 signaling, thereby stimulating Akt phosphorylation and cell proliferation. Genistein induces G2/M phase arrest by down-regulating cyclin B1 expression, which is attributable to its suppression of GPR30 activation and Akt phosphorylation in BRCA1 impaired breast cancer cells.
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Affiliation(s)
- Ga Yun Kim
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, Korea.,Tumor Microenvironment Global Core Research Center, College of Pharmacy, Seoul National University, Seoul, Korea
| | - Jinyoung Suh
- Tumor Microenvironment Global Core Research Center, College of Pharmacy, Seoul National University, Seoul, Korea
| | - Jeong-Hoon Jang
- Tumor Microenvironment Global Core Research Center, College of Pharmacy, Seoul National University, Seoul, Korea
| | - Do-Hee Kim
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, Korea.,Tumor Microenvironment Global Core Research Center, College of Pharmacy, Seoul National University, Seoul, Korea
| | - Ock Jin Park
- Department of Food and Nutrition, Hannam University, Daejeon, Korea
| | - Sue K Park
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea.,Department of Biomedical Science, Seoul National University Graduate School, Seoul, Korea.,Cancer Research Institute, Seoul National University, Seoul, Korea
| | - Young-Joon Surh
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, Korea.,Tumor Microenvironment Global Core Research Center, College of Pharmacy, Seoul National University, Seoul, Korea.,Cancer Research Institute, Seoul National University, Seoul, Korea
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19
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Zhang YY, Liu MY, Liu Z, Zhao JK, Zhao YG, He L, Li W, Zhang JQ. GPR30-mediated estrogenic regulation of actin polymerization and spatial memory involves SRC-1 and PI3K-mTORC2 in the hippocampus of female mice. CNS Neurosci Ther 2019; 25:714-733. [PMID: 30714337 PMCID: PMC6515707 DOI: 10.1111/cns.13108] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 12/18/2018] [Accepted: 01/03/2019] [Indexed: 12/29/2022] Open
Abstract
AIMS The G-protein-coupled estrogen receptor GPR30 (also referred to as GPER) has been implicated in the estrogenic regulation of hippocampal plasticity and spatial memory; however, the molecular mechanisms are largely unclear. METHODS In this study, we initially examined the levels of GPR30 in the hippocampus of postnatal, ovariectomy (OVX)- and letrozole (LET)-treated female mice. Under G1, G15, and/or OVX treatment, the spatial memory, spine density, levels of ERα, ERβ, and SRC-1, selected synaptic proteins, mTORC2 signals (Rictor and p-AKT Ser473), and actin polymerization dynamics were subsequently evaluated. Furthermore, G1, G15, and/or E2 combined with SRC-1 and/or PI3K inhibitors, actin cytoskeleton polymerization modulator JPK, and CytoD treatments were used to address the mechanisms that underlie GPR30 regulation in vitro. Finally, mTORC2 activator A-443654 (A4) was used to explore the role of mTORC2 in GPR30 regulation of spatial memory. RESULTS The results showed that high levels of GPR30 were detected in the adult hippocampus and the levels were downregulated by OVX and LET. OVX induced an impairment of spatial memory, and changes in other parameters previously described were reversed by G1 and mimicked by G15. Furthermore, the E2 effects on SRC-1 and mTORC2 signals, synaptic proteins, and actin polymerization were inhibited by G15, whereas G1 effects on these parameters were inhibited by the blockade of SRC-1 or PI3K; the levels of synaptic proteins were regulated by JPK and CytoD. Importantly, G15-induced actin depolymerization and spatial memory impairment were rescued by mTORC2 activation with A4. CONCLUSIONS Taking together, these results demonstrated that decreased GPR30 induces actin depolymerization through SRC-1 and PI3K/mTORC2 pathways and ultimately impairs learning and memory, indicating its potential role as a therapeutic target against hippocampus-based, E2-related memory impairments.
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Affiliation(s)
- Yuan-Yuan Zhang
- Department of Neurobiology, Chongqing Key Laboratory of Neurobiology, Third Military Medical University, Chongqing, China
| | - Meng-Ying Liu
- Department of Neurobiology, Chongqing Key Laboratory of Neurobiology, Third Military Medical University, Chongqing, China
| | - Zhi Liu
- Department of Histology and Embryology, Third Military Medical University, Chongqing, China
| | - Ji-Kai Zhao
- Department of Neurobiology, Chongqing Key Laboratory of Neurobiology, Third Military Medical University, Chongqing, China
| | - Yan-Gang Zhao
- Department of Neurobiology, Chongqing Key Laboratory of Neurobiology, Third Military Medical University, Chongqing, China
| | - Li He
- School of Nursing, Third Military Medical University, Chongqing, China
| | - Wei Li
- School of Nursing, Third Military Medical University, Chongqing, China
| | - Ji-Qiang Zhang
- Department of Neurobiology, Chongqing Key Laboratory of Neurobiology, Third Military Medical University, Chongqing, China
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20
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Yao Y, Chang X, Wang D, Ma H, Wang H, Zhang H, Li C, Wang J. Roles of ERK1/2 and PI3K/AKT signaling pathways in mitochondria-mediated apoptosis in testes of hypothyroid rats. Toxicol Res (Camb) 2018; 7:1214-1224. [PMID: 30542605 PMCID: PMC6240896 DOI: 10.1039/c8tx00122g] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 08/25/2018] [Indexed: 12/27/2022] Open
Abstract
The absence of the thyroid hormone (TH) could impair testicular function, but its mechanism is still rudimentary. This study aims to explore the roles of estrogen receptor (ER α, β) and G protein-coupled receptor 30 (GPR30), extracellular signal regulated kinase (ERK1/2) and phosphoinositide 3-kinase (PI3K)/protein kinase B (AKT) signaling pathways in apoptosis in testes of hypothyroidism rats. Male Wistar rats were randomly divided into control (C), low-(L) and high-hypothyroidism (H) groups [1 mL per 100 g BW per day normal saline, 0.001% and 0.1% propylthiouracil (PTU), respectively] by intragastrical gavage for 60 days. The levels of triiodothyronine (T3), thyroxine (T4) and thyroid stimulating hormone (TSH) in serum were measured. Expressions of ERα, ERβ and GPR30, pathway related protein expressions of ERK1/2 and PI3 K/AKT and apoptosis were detected in testicular homogenates. The results showed that T3 and T4 levels were decreased, and the TSH level was increased significantly in the H group. Protein expressions of ERα, ERβ and GPR30 decreased significantly in the H group. Significantly decreased protein expressions of p-ERK1/2, p-PI3K p85, p-AKT Ser473, Ras, p-Raf-1 Ser259, p-Raf-1 Ser338 and cyclin D1 in L and H groups as well PI3K p85, p-AKT and Thr308 in the H group were observed. Moreover, there was a significant increase in the Bad protein expression in L and H groups. In addition, there was a significant increase in the expression of Bax/Bcl-2, caspase 9 and cleaved caspase 3 and a significant decrease in the total caspase 3 protein expression in the H group. These results suggested that ERK1/2 and PI3K/AKT signaling pathways could be suppressed by hypothyroidism via inhibiting the expressions of ERs and could finally induce apoptosis in testes.
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Affiliation(s)
- Yueli Yao
- Department of Toxicology , School of Public Health , Lanzhou University , Lanzhou , 730000 , China . ; Tel: +86-931-8915010
| | - Xiaoru Chang
- Department of Toxicology , School of Public Health , Lanzhou University , Lanzhou , 730000 , China . ; Tel: +86-931-8915010
| | - Dong Wang
- Department of Toxicology , School of Public Health , Lanzhou University , Lanzhou , 730000 , China . ; Tel: +86-931-8915010
| | - Haitao Ma
- Department of Toxicology , School of Public Health , Lanzhou University , Lanzhou , 730000 , China . ; Tel: +86-931-8915010
| | - Huiling Wang
- Department of Integrated Chinese and Western Medicine Gynecology , Gansu Provincial Maternity and Child-care Hospital , Lanzhou , 730050 , China
| | - Haojun Zhang
- Department of Hospital Infection , Gansu Provincial Hospital , Lanzhou , 730000 , China
| | - Chengyun Li
- Department of Toxicology , School of Public Health , Lanzhou University , Lanzhou , 730000 , China . ; Tel: +86-931-8915010
| | - Junling Wang
- Department of Toxicology , School of Public Health , Lanzhou University , Lanzhou , 730000 , China . ; Tel: +86-931-8915010
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21
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The Importance of CYP19A1 in Estrogen Receptor-Positive Cholangiocarcinoma. Discov Oncol 2018; 9:408-419. [DOI: 10.1007/s12672-018-0349-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 09/19/2018] [Indexed: 12/18/2022] Open
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22
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Filardo EJ. A role for G-protein coupled estrogen receptor (GPER) in estrogen-induced carcinogenesis: Dysregulated glandular homeostasis, survival and metastasis. J Steroid Biochem Mol Biol 2018; 176:38-48. [PMID: 28595943 DOI: 10.1016/j.jsbmb.2017.05.005] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 05/09/2017] [Accepted: 05/16/2017] [Indexed: 12/18/2022]
Abstract
Mechanisms of carcinogenesis by estrogen center on its mitogenic and genotoxic potential on tumor target cells. These models suggest that estrogen receptor (ER) signaling promotes expansion of the transformed population and that subsequent accumulation of somatic mutations that drive cancer progression occur via metabolic activation of cathecol estrogens or by epigenetic mechanisms. Recent findings that GPER is linked to obesity, vascular pathology and immunosuppression, key events in the development of metabolic syndrome and intra-tissular estrogen synthesis, provides an alternate view of estrogen-induced carcinogenesis. Consistent with this concept, GPER is directly associated with clinicopathological indices that predict cancer progression and poor survival in breast and gynecological cancers. Moreover, GPER manifests cell biological responses and a microenvironment conducive for tumor development and cancer progression, regulating cellular responses associated with glandular homeostasis and survival, invading surrounding tissue and attracting a vascular supply. Thus, the cellular actions attributed to GPER fit well with the known molecular mechanisms of G-protein coupled receptors, GPCRs, namely, their ability to transactivate integrins and EGF receptors and alter the interaction between glandular epithelia and their extracellular environment, affecting epithelial-to-mesenchymal transition (EMT) and allowing for tumor cell survival and dissemination. This perspective reviews the molecular and cellular responses manifested by GPER and evaluates its contribution to female reproductive cancers as diseases that progress as a result of dysregulated glandular homeostasis resulting in chronic inflammation and metastasis. This review is organized in sections as follows: I) a brief synopsis of the current state of knowledge regarding estrogen-induced carcinogenesis, II) a review of evidence from clinical and animal-based studies that support a role for GPER in cancer progression, and III) a mechanistic framework describing how GPER-mediated estrogen action may influence the tumor and its microenvironment.
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Affiliation(s)
- Edward J Filardo
- Division of Hematology & Oncology, The Warren Alpert School of Medicine, Brown University, Providence, RI 02818, United States.
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23
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Prossnitz ER. GPER modulators: Opportunity Nox on the heels of a class Akt. J Steroid Biochem Mol Biol 2018; 176:73-81. [PMID: 28285016 PMCID: PMC5591048 DOI: 10.1016/j.jsbmb.2017.03.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 03/03/2017] [Accepted: 03/06/2017] [Indexed: 12/14/2022]
Abstract
The (patho)physiology of estrogen and its receptors is complex. It is therefore not surprising that therapeutic approaches targeting this hormone include stimulation of its activity through supplementation with either the hormone itself or natural or synthetic agonists, inhibition of its activity through the use of antagonists or inhibitors of its synthesis, and tissue-selective modulation of its activity with biased ligands. The physiology of this hormone is further complicated by the existence of at least three receptors, the classical nuclear estrogen receptors α and β (ERα and ERβ), and the 7-transmembrane G protein-coupled estrogen receptor (GPER/GPR30), with overlapping but distinct pharmacologic profiles, particularly of anti-estrogenic ligands. GPER-selective ligands, as well as GPER knockout mice, have greatly aided our understanding of the physiological roles of GPER. Such ligands have revealed that GPER activation mediates many of the rapid cellular signaling events (including Ca2+ mobilization, ERK and PI3K/Akt activation) associated with estrogen activity, as opposed to the nuclear ERs that are traditionally described to function as ligand-induced transcriptional factors. Many of the salutary effects of estrogen throughout the body are reproduced by the GPER-selective agonist G-1, which, owing to its minimal effects on reproductive tissues, can be considered a non-feminizing estrogenic compound, and thus of potential therapeutic use in both women and men. On the contrary, until recently GPER-selective antagonists had predominantly found preclinical application in cancer models where estrogen stimulates cell growth and survival. This viewpoint changed recently with the discovery that GPER is associated with aging, particularly that of the cardiovascular system, where the GPER antagonist G36 reduced hypertension and GPER deficiency prevented cardiac fibrosis and vascular dysfunction with age, through the downregulation of Nox1 and as a consequence superoxide production. Thus, similar to the classical ERs, both agonists and antagonists of GPER may be of therapeutic benefit depending on the disease or condition to be treated.
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Affiliation(s)
- Eric R Prossnitz
- Division of Molecular Medicine, Department of Internal Medicine, University of New Mexico Comprehensive Cancer Center, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, United States.
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Ribeiro MPC, Santos AE, Custódio JBA. The activation of the G protein-coupled estrogen receptor (GPER) inhibits the proliferation of mouse melanoma K1735-M2 cells. Chem Biol Interact 2017; 277:176-184. [PMID: 28947257 DOI: 10.1016/j.cbi.2017.09.017] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 07/12/2017] [Accepted: 09/21/2017] [Indexed: 11/29/2022]
Abstract
The activation of the G protein-coupled estrogen receptor (GPER) by its specific agonist G-1 inhibits prostate cancer and 17β-estradiol-stimulated breast cancer cell proliferation. Tamoxifen (TAM), which also activates the GPER, decreases melanoma cell proliferation, but its action mechanism remains controversial. Here we investigated the expression and the effects of GPER activation by G-1, TAM and its key metabolite endoxifen (EDX) on melanoma cells. Mouse melanoma K1735-M2 cells expressed GPER and G-1 reduced cell biomass, and the number of viable cells, without increasing cell death. Rather, G-1 decreased cell division by blocking cell cycle progression in G2. Likewise, TAM and EDX exhibited an antiproliferative activity in melanoma cells due to decreased cell division. Both G-1 and the antiestrogens showed a trend to decrease the levels of phosphorylated ERK 1/2 after 1 h treatment, although only EDX, the most potent antiproliferative antiestrogen, induced significant effects. Importantly, the targeting of GPER with siRNA abolished the cytostatic activity of both G-1 and antiestrogens, suggesting that the antitumor actions of antiestrogens in melanoma cells involve GPER activation. Our results unveil a new target for melanoma therapy and identify GPER as a key mediator of antiestrogen antiproliferative effects, which may contribute to select the patients that benefit from an antiestrogen-containing regimen.
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Affiliation(s)
- Mariana P C Ribeiro
- Center for Neuroscience and Cell Biology, University of Coimbra, 3000-354 Coimbra, Portugal; Laboratory of Biochemistry, Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal.
| | - Armanda E Santos
- Center for Neuroscience and Cell Biology, University of Coimbra, 3000-354 Coimbra, Portugal; Laboratory of Biochemistry, Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal.
| | - José B A Custódio
- Center for Neuroscience and Cell Biology, University of Coimbra, 3000-354 Coimbra, Portugal; Laboratory of Biochemistry, Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal
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25
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Wan J, Yin Y, Zhao M, Shen F, Chen M, Chen Q. The positivity of G-protein-coupled receptor-30 (GPR 30), an alternative estrogen receptor is not different between type 1 and type 2 endometrial cancer. Oncotarget 2017; 8:90897-90904. [PMID: 29207611 PMCID: PMC5710892 DOI: 10.18632/oncotarget.18545] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Accepted: 06/04/2017] [Indexed: 12/24/2022] Open
Abstract
It is well-known that the clinical outcomes are different between type 1 (estrogen dependent) and type 2 (estrogen independent) endometrial cancer. Studies have suggested that the estrogen receptor (ER) is positively correlated with endometrial cancer survival, however we previously reported that there is no difference in the positivity of ER as well as sex hormone levels between subtypes of cancer. G-protein-coupled receptor-30 (GPR 30), an alternative estrogen receptor has been suggested to be negatively correlated with clinical outcomes of endometrial cancer. In this study we investigated whether the positivity of GPR30 is different between subtypes of cancer. The immunostaining of GPR30 and ER was examined and analysed in 128 cases taking into account menopausal status. Overall, 105 (82%) cases were GPR30 positive and 118 (92%) cases were ER positive. The positivity of GPR30 in type 1 endometrial cancer (83%) was not statistically different to type 2 endometrial cancer (78%). In addition, intensity of immunostaining of GPR30 in type 1 endometrial cancer was also not different to type 2 endometrial cancer quantified by semi-quantitative analysis (p = 0.268). Menopausal status was not associated with the positivity of GPR30 in both type 1 and type 2 endometrial cancer. Furthermore, the positivity and intensity of immunostaining of GPR30 were not correlated with the positivity and intensity of immunostaining of ER in endometrial cancer (p = 0.689). Our data further confirm that type 2 endometrial cancer may not be completely estrogen independent, and suggest that type 1 and type 2 endometrial cancer may have similar pathogenesis.
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Affiliation(s)
- Jiayi Wan
- Department of Pathology, Wuxi No2 People's Hospital, Nanjing Medical University, Wuxi, China
| | - Yongxiang Yin
- Department of Pathology, Wuxi Maternity and Children Hospital, Nanjing Medical University, Wuxi, China
| | - Min Zhao
- Department of Pathology, Wuxi Maternity and Children Hospital, Nanjing Medical University, Wuxi, China
| | - Fang Shen
- The Hospital of Obstetrics and Gynaecology, Fudan University, Shanghai, China
| | - Miaoxin Chen
- Centre for Reproductive Medicine, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - Qi Chen
- The Hospital of Obstetrics and Gynaecology, Fudan University, Shanghai, China.,Department of Obstetrics and Gynaecology, The University of Auckland, Auckland, New Zealand
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Zhu P, Liao LY, Zhao TT, Mo XM, Chen GG, Liu ZM. GPER/ERK&AKT/NF-κB pathway is involved in cadmium-induced proliferation, invasion and migration of GPER-positive thyroid cancer cells. Mol Cell Endocrinol 2017; 442:68-80. [PMID: 27940299 DOI: 10.1016/j.mce.2016.12.007] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Revised: 12/07/2016] [Accepted: 12/08/2016] [Indexed: 02/06/2023]
Abstract
The higher incidence of thyroid cancer in women during reproductive years compared with men and the increased risk associated with the therapeutic use of estrogen have strongly suggested that estrogen may be involved in the occurrence and development of thyroid cancer. Cadmium (Cd) is a potent metalloestrogen that disrupts the endocrine system by mimicking the effects of 17β-estradiol (E2). In the present study, we demonstrate that similar to E2 and G1, a specific agonist for G protein-coupled estrogen receptor (GPER), Cd induces the proliferation, invasion and migration of human WRO and FRO thyroid cancer cells that have endogenous GPER. Moreover, like E2 and G1, Cd leads to a rapid activation of ERK/AKT, and then nuclear translocation of NF-κB, increased expression of cyclin A and D1, and secretion of IL-8, all of which are significantly attenuated by GPER blockage or knock-down in both WRO and FRO cells. Furthermore, the Cd-induced proliferation, invasion and migration are suppressed either by specific inhibitors for GPER, ERK, AKT and NF-κB, or by knock-down of GPER. These results suggest that GPER/ERK&AKT/NF-κB signaling pathway is involved in the Cd-induced proliferation, invasion and migration of GPER-positive thyroid cancer cells.
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Affiliation(s)
- Ping Zhu
- Department of Biochemistry and Molecular Biology, Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing, China
| | - Ling-Yao Liao
- Department of Biochemistry and Molecular Biology, Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing, China
| | - Ting-Ting Zhao
- Department of Biochemistry and Molecular Biology, Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing, China
| | - Xiao-Mei Mo
- Department of Biochemistry and Molecular Biology, Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing, China
| | - George G Chen
- Department of Surgery, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, N.T., Hong Kong, China
| | - Zhi-Min Liu
- Department of Biochemistry and Molecular Biology, Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing, China.
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Chen C, Wang Y, Wang S, Liu Y, Zhang J, Xu Y, Zhang Z, Bao W, Wu S. LSD1 sustains estrogen-driven endometrial carcinoma cell proliferation through the PI3K/AKT pathway via di-demethylating H3K9 of cyclin D1. Int J Oncol 2017; 50:942-952. [PMID: 28098854 DOI: 10.3892/ijo.2017.3849] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 12/19/2016] [Indexed: 11/05/2022] Open
Abstract
A recent study reported that histone lysine specific demethylase 1 (LSD1, KDM1A) is overexpressed in endometrioid endometrial carcinoma (EEC) and associated with tumor progression as well as poor prognosis. However, the physiological function and mechanism of LSD1 in endometrial cancer (EC) remains largely unknown. In this study, we demonstrate that β-estradiol (E2) treatment increased LSD1 expression via the GPR30/PI3K/AKT pathway in endometrial cancer cells. Both siGPR30 and the PI3K inhibitor LY294002 block this effect. RNAi-mediated silencing of LSD1 abolished estrogen-driven endometrial cancer cell (ECC) proliferation, and induced G1 cell arrest and apoptosis. Mechanistically, we find that LSD1 silencing results in PI3K/AKT signal inactivation, but without the elevation of PTEN expression as expected. This is because the inhibition of LSD1 induces dimethylation of lysine 9 on histone H3 (H3K9m2) accumulation at the promoter region of cyclin D1. Interfering with cyclin D1 leads to PI3K/AKT signal suppression. Re-overexpression of cyclin D1 in LSD1-knockdown ECCs reverses the LSD1 inhibitory action. Our finding connects estrogen signaling with epigenetic regulation in EEC and provides novel experimental support for LSD1 as a potential target for endometrial cancer therapeutics.
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Affiliation(s)
- Chunqin Chen
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Yanan Wang
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Shiyu Wang
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Yuan Liu
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Jiawen Zhang
- Department of Obstetrics and Gynecology, Shanghai Tenth People's Hospital, Shanghai Tongji University, Shanghai, P.R. China
| | - Yuyao Xu
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Zhenbo Zhang
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Wei Bao
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Sufang Wu
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
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28
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Zhang L, Li Y, Lan L, Liu R, Wu Y, Qu Q, Wen K. Tamoxifen has a proliferative effect in endometrial carcinoma mediated via the GPER/EGFR/ERK/cyclin D1 pathway: A retrospective study and an in vitro study. Mol Cell Endocrinol 2016; 437:51-61. [PMID: 27519631 DOI: 10.1016/j.mce.2016.08.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2016] [Revised: 07/12/2016] [Accepted: 08/08/2016] [Indexed: 10/21/2022]
Abstract
Tamoxifen has been widely used to treat breast cancer as an endocrine therapy. However, tamoxifen is known to enhance the risk of developing endometrial cancer. We want to examine the effect of tamoxifen on endometrial cancer. In our retrospective study, we found that high grade, high stage, and lymph node metastasis were more common in tamoxifen users. In vitro 4-hydroxytamoxifen (OHT) induced cell proliferation and cell cycle promotion in type I and type II endometrial cancer cell lines, and this proliferation was blocked by GPER silencing. Treatment with OHT increased EGFR and ERK phosphorylation and the mRNA and protein levels of cyclin D1 and GPER. Taken together, our data demonstrate that endometrial cancer patients with tamoxifen treatment exhibit more aggressive histological subtypes and worse prognosis. OHT is a proliferation-inducing agent for endometrial cancer cells, and the GPER/EFGR/ERK/cyclin D1 pathway is involved in this process.
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Affiliation(s)
- Lizhi Zhang
- Department of Obstetrics and Gynecology, Tianjin First Center Hospital, Tianjin, 300192, China.
| | - Yanmin Li
- Department of Pathology, Tianjin First Center Hospital, Tianjin, 300192, China.
| | - Lan Lan
- Department of Synergistic Chinese and Western Medicine Oncology, Tianjin Medical University Cancer Institute and Hospital, Tianjin, 300060, China.
| | - Rong Liu
- Department of Obstetrics and Gynecology, Tianjin First Center Hospital, Tianjin, 300192, China.
| | - Yanhong Wu
- Department of Obstetrics and Gynecology, Tianjin First Center Hospital, Tianjin, 300192, China.
| | - Quanxin Qu
- Department of Obstetrics and Gynecology, Tianjin First Center Hospital, Tianjin, 300192, China.
| | - Ke Wen
- Department of Pharmacology, Tianjin Medical University, Tianjin, 300070, China.
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GPR30 Activation Contributes to the Puerarin-Mediated Neuroprotection in MPP+-Induced SH-SY5Y Cell Death. J Mol Neurosci 2016; 61:227-234. [DOI: 10.1007/s12031-016-0856-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 10/21/2016] [Indexed: 12/11/2022]
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30
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GPR30 regulates diet-induced adiposity in female mice and adipogenesis in vitro. Sci Rep 2016; 6:34302. [PMID: 27698362 PMCID: PMC5048424 DOI: 10.1038/srep34302] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Accepted: 09/09/2016] [Indexed: 01/08/2023] Open
Abstract
Recent studies showed that GPR30, a seven-transmembrane G-protein-coupled receptor, is a novel estrogen receptor (ER) that mediates some biological events elicited by estrogen in several types of cancer cells. However, its physiological or pathological role in vivo is unclear. Here, we show that GPR30 knockout (GPRKO) female mice were protected from high-fat diet (HFD)-induced obesity, blood glucose intolerance, and insulin resistance. The decreased body weight gain in GPRKO female mice is due to the reduction in body fat mass. These effects occurred in the absence of significant changes in food intake, intestinal fat absorption, triglyceride metabolism, or energy expenditure. However, GPR30 had no significant metabolic effects in male mice fed the HFD and both sexes of mice fed a chow diet. Further, GPR30 expression levels in fat tissues of WT obese female mice were greatly increased, whereas ERα and β expression was not altered. Deletion of GPR30 reduced adipogenic differentiation of adipose tissue-derived stromal cells. Conversely, activation of GPR30 enhanced adipogenic differentiation of 3T3-L1 preadipocytes. These findings provide evidence for the first time that GPR30 promotes adipogenesis and therefore the development of obesity in female mice exposed to excess fat energy.
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31
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G protein-coupled receptor 30 regulates trophoblast invasion and its deficiency is associated with preeclampsia. J Hypertens 2016; 34:710-8. [DOI: 10.1097/hjh.0000000000000844] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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32
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Castro J, Araya G, Inostroza P, Hidalgo P, González-Ramos R, Sovino H, Boric MA, Fuentes A, Johnson MC. Differential expression of upstream stimulatory factor (USF) 2 variants in eutopic endometria from women with endometriosis: estradiol regulation. Biol Res 2015; 48:56. [PMID: 26453052 PMCID: PMC4600330 DOI: 10.1186/s40659-015-0047-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Accepted: 09/30/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Endometriosis, pro-inflammatory and invasive benign disease estrogen dependent, abnormally express in endometria the enzyme P450Arom, positively regulated by steroid factor-1 (SF-1). Our objective was to study the nuclear protein contents of upstream stimulating factor 2 (USF2a and USF2b), a positive regulator of SF-1, throughout the menstrual cycle in eutopic endometria from women with and without (control) endometriosis and the involvement of nuclear estrogen receptors (ER) and G-coupled protein estrogen receptor (GPER)-1. RESULTS Upstream stimulating factor 2 protein contents were higher in mid (USF2b) and late (USF2a and USF2b) secretory phase in eutopic endometria from endometriosis than control (p < 0.05). In isolated control epithelial cells incubated with E2 and PGE2, to resemble the endometriosis condition, the data showed: (a) significant increase of USF2a and USF2b nuclear protein contents when treated with E2, PPT (specific agonist for ERα) or G1 (specific agonist for GPER1); (b) no increase in USF2 binding to SF-1 E-Box/DNA consensus sequence in E2-treated cells; (c) USF2 variants protein contents were not modified by PGE2; (d) SF-1 nuclear protein content was significantly higher than basal when treated with PGE2, E2 or G1, stimulation unaffected by ICI (nuclear ER antagonist); and (e) increased (p < 0.05) cytosolic protein contents of P450Arom when treated with PGE2, E2, PPT or G1 compared to basal, effect that was additive with E2 + PGE2 together. Nevertheless, in endometriosis cells, the high USF2, SF-1 and P450Arom protein contents in basal condition were unmodified. CONCLUSION These data strongly suggest that USF2 variants and P450Arom are regulated by E2 through ERα and GPER1, whereas SF-1 through GPER1, visualized by the response of the cells obtained from control endometria, being unaffected the endogenously stimulated cells from endometriosis origin. The lack of E2 stimulation on USF2/SF-1 E-Box/DNA-sequence binding and the absence of PGE2 effect on USF2 variants opposite to the strong induction that they exert on SF1 and P450 proteins suggest different mechanisms and indirect regulations. The sustained USF2 variants protein expression during the secretory phase in eutopic endometria from women with endometriosis may participate in the pathophysiology of this disease strongly associated with infertility and its characteristic endometrial invasion to ectopic sites in the pelvic cavity.
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Affiliation(s)
- Jazmin Castro
- Faculty of Medicine, Institute of Maternal and Child Research, University of Chile, P.O. Box 226-3, Santiago, Chile.
| | - Germán Araya
- Faculty of Medicine, Institute of Maternal and Child Research, University of Chile, P.O. Box 226-3, Santiago, Chile.
| | - Pamela Inostroza
- Faculty of Medicine, Institute of Maternal and Child Research, University of Chile, P.O. Box 226-3, Santiago, Chile.
| | - Paulina Hidalgo
- Faculty of Medicine, Institute of Maternal and Child Research, University of Chile, P.O. Box 226-3, Santiago, Chile.
| | - Reinaldo González-Ramos
- Faculty of Medicine, Institute of Maternal and Child Research, University of Chile, P.O. Box 226-3, Santiago, Chile.
- San Borja-Arriarán Clinical Hospital, Santiago, Chile.
| | - Hugo Sovino
- Faculty of Medicine, Institute of Maternal and Child Research, University of Chile, P.O. Box 226-3, Santiago, Chile.
- San Borja-Arriarán Clinical Hospital, Santiago, Chile.
| | - M Angélica Boric
- Faculty of Medicine, Institute of Maternal and Child Research, University of Chile, P.O. Box 226-3, Santiago, Chile.
| | - Ariel Fuentes
- Faculty of Medicine, Institute of Maternal and Child Research, University of Chile, P.O. Box 226-3, Santiago, Chile.
- San Borja-Arriarán Clinical Hospital, Santiago, Chile.
| | - M Cecilia Johnson
- Faculty of Medicine, Institute of Maternal and Child Research, University of Chile, P.O. Box 226-3, Santiago, Chile.
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Wang Y, Niu XL, Guo XQ, Yang J, Li L, Qu Y, Xiu Hu C, Mao LQ, Wang D. IL6 induces TAM resistance via kinase-specific phosphorylation of ERα in OVCA cells. J Mol Endocrinol 2015; 54:351-61. [PMID: 25943392 DOI: 10.1530/jme-15-0011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/01/2015] [Indexed: 01/16/2023]
Abstract
About 40-60% of ovarian cancer (OVCA) cases express ERα, but only a small proportion of patients respond clinically to anti-estrogen treatment with estrogen receptor (ER) antagonist tamoxifen (TAM). The mechanism of TAM resistance in the course of OVCA progression remains unclear. However, IL6 plays a critical role in the development and progression of OVCA. Our recent results indicated that IL6 secreted by OVCA cells may promote the resistance of these cells to TAM via ER isoforms and steroid hormone receptor coactivator-1. Here we demonstrate that both exogenous (a relatively short period of treatment with recombinant IL6) and endogenous IL6 (generated as a result of transfection with a plasmid encoding sense IL6) increases expression of pERα-Ser118 and pERα-Ser167 in non-IL6-expressing A2780 cells, while deleting endogenous IL6 expression in IL6-overexpressing CAOV-3 cells (by transfection with a plasmid encoding antisense IL6) reduces expression of pERα-Ser118 and pERα-Ser167, indicating that IL6-induced TAM resistance may also be associated with increased expression of pERα-Ser118 and pERα-Ser167 in OVCA cells. Results of further investigation indicate that IL6 phosphorylates ERα at Ser118 and Ser167 by triggering activation of MEK/ERK and phosphotidylinositol 3 kinase/Akt signaling, respectively, to activate the ER pathway and thereby induce OVCA cells resistance to TAM. These results indicate that IL6 secreted by OVCA cells may also contribute to the refractoriness of these cells to TAM via the crosstalk between ER and IL6-mediated intracellular signal transduction cascades. Overexpression of IL6 not only plays an important role in OVCA progression but also promotes TAM resistance. Our results indicate that TAM-IL6-targeted adjunctive therapy may lead to a more effective intervention than TAM alone.
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Affiliation(s)
- Yue Wang
- Tianjin Key Laboratory for Prevention and Control of Occupational and Environmental HazardTianjin, People's Republic of ChinaDepartment of Pathogenic Biology and ImmunologyLogistics College of Chinese People's Armed Police Forces, Dongli District, Huizhi Ring Road, Number 1, Tianjin 300309, People's Republic of ChinaDepartment of Infectious DiseasesAffiliated Hospital of Logistics College of Chinese People's Armed Police Forces, Tianjin, People's Republic of ChinaDepartment of PharmacologyLogistics College of Chinese People's Armed Police Forces, Tianjin, People's Republic of ChinaDepartment of Gynecology and ObstetricsAffiliated Hospital of Logistics College of Chinese People's Armed Police Forces, Tianjin, People's Republic of China Tianjin Key Laboratory for Prevention and Control of Occupational and Environmental HazardTianjin, People's Republic of ChinaDepartment of Pathogenic Biology and ImmunologyLogistics College of Chinese People's Armed Police Forces, Dongli District, Huizhi Ring Road, Number 1, Tianjin 300309, People's Republic of ChinaDepartment of Infectious DiseasesAffiliated Hospital of Logistics College of Chinese People's Armed Police Forces, Tianjin, People's Republic of ChinaDepartment of PharmacologyLogistics College of Chinese People's Armed Police Forces, Tianjin, People's Republic of ChinaDepartment of Gynecology and ObstetricsAffiliated Hospital of Logistics College of Chinese People's Armed Police Forces, Tianjin, People's Republic of China
| | - Xiu Long Niu
- Tianjin Key Laboratory for Prevention and Control of Occupational and Environmental HazardTianjin, People's Republic of ChinaDepartment of Pathogenic Biology and ImmunologyLogistics College of Chinese People's Armed Police Forces, Dongli District, Huizhi Ring Road, Number 1, Tianjin 300309, People's Republic of ChinaDepartment of Infectious DiseasesAffiliated Hospital of Logistics College of Chinese People's Armed Police Forces, Tianjin, People's Republic of ChinaDepartment of PharmacologyLogistics College of Chinese People's Armed Police Forces, Tianjin, People's Republic of ChinaDepartment of Gynecology and ObstetricsAffiliated Hospital of Logistics College of Chinese People's Armed Police Forces, Tianjin, People's Republic of China
| | - Xiao Qin Guo
- Tianjin Key Laboratory for Prevention and Control of Occupational and Environmental HazardTianjin, People's Republic of ChinaDepartment of Pathogenic Biology and ImmunologyLogistics College of Chinese People's Armed Police Forces, Dongli District, Huizhi Ring Road, Number 1, Tianjin 300309, People's Republic of ChinaDepartment of Infectious DiseasesAffiliated Hospital of Logistics College of Chinese People's Armed Police Forces, Tianjin, People's Republic of ChinaDepartment of PharmacologyLogistics College of Chinese People's Armed Police Forces, Tianjin, People's Republic of ChinaDepartment of Gynecology and ObstetricsAffiliated Hospital of Logistics College of Chinese People's Armed Police Forces, Tianjin, People's Republic of China
| | - Jing Yang
- Tianjin Key Laboratory for Prevention and Control of Occupational and Environmental HazardTianjin, People's Republic of ChinaDepartment of Pathogenic Biology and ImmunologyLogistics College of Chinese People's Armed Police Forces, Dongli District, Huizhi Ring Road, Number 1, Tianjin 300309, People's Republic of ChinaDepartment of Infectious DiseasesAffiliated Hospital of Logistics College of Chinese People's Armed Police Forces, Tianjin, People's Republic of ChinaDepartment of PharmacologyLogistics College of Chinese People's Armed Police Forces, Tianjin, People's Republic of ChinaDepartment of Gynecology and ObstetricsAffiliated Hospital of Logistics College of Chinese People's Armed Police Forces, Tianjin, People's Republic of China
| | - Ling Li
- Tianjin Key Laboratory for Prevention and Control of Occupational and Environmental HazardTianjin, People's Republic of ChinaDepartment of Pathogenic Biology and ImmunologyLogistics College of Chinese People's Armed Police Forces, Dongli District, Huizhi Ring Road, Number 1, Tianjin 300309, People's Republic of ChinaDepartment of Infectious DiseasesAffiliated Hospital of Logistics College of Chinese People's Armed Police Forces, Tianjin, People's Republic of ChinaDepartment of PharmacologyLogistics College of Chinese People's Armed Police Forces, Tianjin, People's Republic of ChinaDepartment of Gynecology and ObstetricsAffiliated Hospital of Logistics College of Chinese People's Armed Police Forces, Tianjin, People's Republic of China
| | - Ye Qu
- Tianjin Key Laboratory for Prevention and Control of Occupational and Environmental HazardTianjin, People's Republic of ChinaDepartment of Pathogenic Biology and ImmunologyLogistics College of Chinese People's Armed Police Forces, Dongli District, Huizhi Ring Road, Number 1, Tianjin 300309, People's Republic of ChinaDepartment of Infectious DiseasesAffiliated Hospital of Logistics College of Chinese People's Armed Police Forces, Tianjin, People's Republic of ChinaDepartment of PharmacologyLogistics College of Chinese People's Armed Police Forces, Tianjin, People's Republic of ChinaDepartment of Gynecology and ObstetricsAffiliated Hospital of Logistics College of Chinese People's Armed Police Forces, Tianjin, People's Republic of China
| | - Cun Xiu Hu
- Tianjin Key Laboratory for Prevention and Control of Occupational and Environmental HazardTianjin, People's Republic of ChinaDepartment of Pathogenic Biology and ImmunologyLogistics College of Chinese People's Armed Police Forces, Dongli District, Huizhi Ring Road, Number 1, Tianjin 300309, People's Republic of ChinaDepartment of Infectious DiseasesAffiliated Hospital of Logistics College of Chinese People's Armed Police Forces, Tianjin, People's Republic of ChinaDepartment of PharmacologyLogistics College of Chinese People's Armed Police Forces, Tianjin, People's Republic of ChinaDepartment of Gynecology and ObstetricsAffiliated Hospital of Logistics College of Chinese People's Armed Police Forces, Tianjin, People's Republic of China
| | - Li Qun Mao
- Tianjin Key Laboratory for Prevention and Control of Occupational and Environmental HazardTianjin, People's Republic of ChinaDepartment of Pathogenic Biology and ImmunologyLogistics College of Chinese People's Armed Police Forces, Dongli District, Huizhi Ring Road, Number 1, Tianjin 300309, People's Republic of ChinaDepartment of Infectious DiseasesAffiliated Hospital of Logistics College of Chinese People's Armed Police Forces, Tianjin, People's Republic of ChinaDepartment of PharmacologyLogistics College of Chinese People's Armed Police Forces, Tianjin, People's Republic of ChinaDepartment of Gynecology and ObstetricsAffiliated Hospital of Logistics College of Chinese People's Armed Police Forces, Tianjin, People's Republic of China
| | - Dan Wang
- Tianjin Key Laboratory for Prevention and Control of Occupational and Environmental HazardTianjin, People's Republic of ChinaDepartment of Pathogenic Biology and ImmunologyLogistics College of Chinese People's Armed Police Forces, Dongli District, Huizhi Ring Road, Number 1, Tianjin 300309, People's Republic of ChinaDepartment of Infectious DiseasesAffiliated Hospital of Logistics College of Chinese People's Armed Police Forces, Tianjin, People's Republic of ChinaDepartment of PharmacologyLogistics College of Chinese People's Armed Police Forces, Tianjin, People's Republic of ChinaDepartment of Gynecology and ObstetricsAffiliated Hospital of Logistics College of Chinese People's Armed Police Forces, Tianjin, People's Republic of China
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Jiang X, Ye X, Ma J, Li W, Wu R, Jun L. G protein-coupled estrogen receptor 1 (GPER 1) mediates estrogen-induced, proliferation of leiomyoma cells. Gynecol Endocrinol 2015; 31:894-8. [PMID: 26416628 DOI: 10.3109/09513590.2015.1092022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
G protein-coupled estrogen receptor 1 (GPER-1, formerly known as GPR30) has been proposed as the receptor for estrogen-induced, growth of leiomyomas though its precise mechanisms of action are not clear. We obtained leiomyoma cells (LC) and normal smooth muscle cells from 28 women (n = 28, median age 38 years, median parity 1.0). We incubated them with 17-β estradiol (E(2)), after blocking, or upregulating, expression of GPER-1 with ICI182,780 (a GPER-1 agonist) and siGPR30, respectively. We evaluated the role of GPER-1 in the mitogen-activated protein kinase (MAPK) signaling pathway using Western blot analysis. We studied cell proliferation with 3-(4,5-dimethylthiazol-2-yl)2,5-diphenyl tetrazolium bromide, and, mitotic activity with phosphohistone H3 (PPH3) expression in leiomyoma, and, matched, normal, smooth muscle tissues using standard immunohistochemistry. Downregulation of GPER-1 expression with siGPR30 partially attenuated the E(2)-activated MAPK signaling pathway (p < 0.01). Upregulation of GPER-1 with ICI182,780 enhanced the E(2)-activated MAPK signaling pathway (p < 0.01). ICI182,780 enhanced E(2)-induced proliferation of LC (p < 0.01), while knock down of the GPER-1 gene with GPER-1 small interfering RNA partially inhibited E(2)-induced cell proliferation (p < 0.01). There were no significant differences in PPH3 expression between LCs and normal smooth muscle tissues (p > 0.05). Neither ICI182,780 nor siGPR30 increased mitosis in LCs (p > 0.05). Our results indicate that GPER-1 mediates proliferation of estrogen-induced, LC by activating the MAPK pathway, and, not by promoting mitosis.
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Affiliation(s)
- Xiuxiu Jiang
- a Department of Gynecology , Women's Hospital, School of Medicine, Zhejiang University , Hangzhou City , Zhejiang Province , People's Republic of China
| | - Xiaolei Ye
- b Department of Gynecology , The Third Affiliated Hospital of Ningbo University , Ningbo City , Zhejiang Province , People's Republic of China , and
| | - Junyan Ma
- c Department of Laboratory , Women's Hospital, School of Medicine, Zhejiang University , Hangzhou City , Zhejiang Province , People's Republic of China
| | - Wen Li
- c Department of Laboratory , Women's Hospital, School of Medicine, Zhejiang University , Hangzhou City , Zhejiang Province , People's Republic of China
| | - Ruijin Wu
- a Department of Gynecology , Women's Hospital, School of Medicine, Zhejiang University , Hangzhou City , Zhejiang Province , People's Republic of China
| | - Lin Jun
- a Department of Gynecology , Women's Hospital, School of Medicine, Zhejiang University , Hangzhou City , Zhejiang Province , People's Republic of China
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Unno K, Ono M, Winder AD, Maniar KP, Paintal AS, Yu Y, Wei JJ, Lurain JR, Kim JJ. Establishment of human patient-derived endometrial cancer xenografts in NOD scid gamma mice for the study of invasion and metastasis. PLoS One 2014; 9:e116064. [PMID: 25542024 PMCID: PMC4277433 DOI: 10.1371/journal.pone.0116064] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Accepted: 12/01/2014] [Indexed: 11/19/2022] Open
Abstract
Objective Most endometrial cancers are detected early and have a good prognosis, while some endometrial cancers are highly invasive, metastasize early, and respond suboptimally to therapy. Currently, appropriate model systems to study the aggressive nature of these tumors are lacking. The objective of this study was to establish a mouse xenograft model of endometrial tumors derived from patients in order to study the biological aggressive characteristics that underlie invasion and metastasis. Methods Endometrial tumor tissue fragments (1.5 mm×1.5 mm) from patients undergoing surgery, were transplanted under the renal capsule of NOD scid gamma mice. After 6–8 weeks, tumors were excised and serially transplanted into additional mice for propagation. Immunohistochemical analysis of the tumors was done for various tumor markers. Results Four cases of different subtypes of endometrial cancer were grown and propagated in mice. Three of the four tumor cases invaded into the kidneys and to adjacent organs. While all tumors exhibited minimal to no staining for estrogen receptor α, progesterone receptor staining was observed for tumor grafts. In addition, levels and localization of E-cadherin, cytokeratin and vimentin varied depending on subtype. Finally, all tumor xenografts stained positively for urokinase plasminogen activator while 3 tumor xenografts, which showed invasive characteristics, stained positively for urokinase plasminogen activator receptor. Conclusion Endometrial tumors transplanted under the renal capsule exhibit growth, invasion and local spread. These tumors can be propagated and used to study aggressive endometrial cancer.
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Affiliation(s)
- Kenji Unno
- Department of Obstetrics and Gynecology, Division of Reproductive Science in Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, United States of America
| | - Masanori Ono
- Department of Obstetrics and Gynecology, Division of Reproductive Science in Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, United States of America
| | - Abigail D. Winder
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, United States of America
| | - Kruti P. Maniar
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, United States of America
| | - Ajit S. Paintal
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, United States of America
| | - Yanni Yu
- Department of Obstetrics and Gynecology, Division of Reproductive Science in Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, United States of America
| | - Jian-Jun Wei
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, United States of America
| | - John R. Lurain
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, United States of America
| | - J. Julie Kim
- Department of Obstetrics and Gynecology, Division of Reproductive Science in Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, United States of America
- * E-mail:
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Ribeiro JR, Freiman RN. Estrogen signaling crosstalk: Implications for endocrine resistance in ovarian cancer. J Steroid Biochem Mol Biol 2014; 143:160-73. [PMID: 24565562 PMCID: PMC4127339 DOI: 10.1016/j.jsbmb.2014.02.010] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Revised: 02/04/2014] [Accepted: 02/13/2014] [Indexed: 12/14/2022]
Abstract
Resistance to anti-estrogen therapies is a prominent challenge in the treatment of ovarian cancer. Tumors develop endocrine resistance by acquiring adaptations that help them rely on alternative oncogenic signaling cascades, which crosstalk with estrogen signaling pathways. An understanding of estrogen signaling crosstalk with these growth promoting cascades is essential in order to maximize efficacy of anti-estrogen treatments in ovarian cancer. Herein, we provide an overview of estrogen signaling in ovarian cancer and discuss the major challenges associated with anti-estrogen therapies. We also review what is currently known about how genomic and non-genomic estrogen signaling pathways crosstalk with several major oncogenic signaling cascades. The insights provided here illustrate existing strategies for targeting endocrine resistant ovarian tumors and may help identify new strategies to improve the treatment of this disease.
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Affiliation(s)
- Jennifer R Ribeiro
- Brown University, Pathobiology Graduate Program, 70 Ship St., Providence, RI 02903, USA.
| | - Richard N Freiman
- Brown University, Pathobiology Graduate Program, 70 Ship St., Providence, RI 02903, USA; Brown University, Department of Molecular and Cellular Biology and Biochemistry, 70 Ship St., Providence, RI 02903, USA.
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Hormonal prevention of breast cancer. ANNALES D'ENDOCRINOLOGIE 2014; 75:148-55. [DOI: 10.1016/j.ando.2014.04.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2013] [Revised: 02/09/2014] [Accepted: 04/29/2014] [Indexed: 11/23/2022]
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Tashiro H, Katabuchi H. The Relationship Between Estrogen and Genes in the Molecular Pathogenesis of Endometrial Carcinoma. CURRENT OBSTETRICS AND GYNECOLOGY REPORTS 2014. [DOI: 10.1007/s13669-013-0074-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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G protein-coupled estrogen receptor-selective ligands modulate endometrial tumor growth. Obstet Gynecol Int 2013; 2013:472720. [PMID: 24379833 PMCID: PMC3863501 DOI: 10.1155/2013/472720] [Citation(s) in RCA: 118] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Accepted: 09/17/2013] [Indexed: 01/28/2023] Open
Abstract
Endometrial carcinoma is the most common cancer of the female reproductive tract. GPER/GPR30 is a 7-transmembrane spanning G protein-coupled receptor that has been identified as the third estrogen receptor, in addition to ERα and ERβ. High GPER expression is predictive of poor survival in endometrial and ovarian cancer, but despite this, the estrogen-mediated signaling pathways and specific estrogen receptors involved in endometrial cancer remain unclear. Here, employing ERα-negative Hec50 endometrial cancer cells, we demonstrate that GPER mediates estrogen-stimulated activation of ERK and PI3K via matrix metalloproteinase activation and subsequent transactivation of the EGFR and that ER-targeted therapeutic agents (4-hydroxytamoxifen, ICI182,780/fulvestrant, and Raloxifene), the phytoestrogen genistein, and the “ERα-selective” agonist propylpyrazole triol also function as GPER agonists. Furthermore, xenograft tumors of Hec50 cells yield enhanced growth with G-1 and estrogen, the latter being inhibited by GPER-selective pharmacologic antagonism with G36. These results have important implications with respect to the use of putatively ER-selective ligands and particularly for the widespread long-term use of “ER-targeted” therapeutics. Moreover, our findings shed light on the potential mechanisms of SERM/SERD side effects reported in many clinical studies. Finally, our results provide the first demonstration that pharmacological inhibition of GPER activity in vivo prevents estrogen-mediated tumor growth.
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Jiang QF, Wu TT, Yang JY, Dong CR, Wang N, Liu XH, Liu ZM. 17β-estradiol promotes the invasion and migration of nuclear estrogen receptor-negative breast cancer cells through cross-talk between GPER1 and CXCR1. J Steroid Biochem Mol Biol 2013; 138:314-24. [PMID: 23907016 DOI: 10.1016/j.jsbmb.2013.07.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Revised: 06/27/2013] [Accepted: 07/22/2013] [Indexed: 12/30/2022]
Abstract
G protein-coupled estrogen receptor 1 (GPER1) is widely expressed in human breast cancers correlating with increased tumor size and malignancy. Although estrogen signaling via GPER1 was extensively studied in recent years, the underlying molecular mechanism of GPER1-associated metastasis of breast cancer still remains unclear. In this study, the main aims were focused on the potential role of GPER1 in regulating migration and invasion of nuclear estrogen receptor (ER)-negative breast cancer cells upon 17β-estradiol (E2) stimulation and the involved signaling pathway. Key events in estrogen signaling were chosen for our studies, such as the activation of ERK and AKT, nuclear translocation of NF-κB and secretion of Interleukin-8 (IL-8). The migration and invasion activities upon E2 stimulation were also examined in ER-negative SKBR3 and BT-20 breast cancer cells. Compared with ER-positive MCF-7 breast cancer cells, both SKBR3 and BT-20 cells had very similar expression of GPER1, but relatively high expression of CXC receptor-1 (CXCR1), which is considered as an active regulator for cancer metastasis upon binding IL-8. Results showed that E2 facilitated the activation of ERK, AKT and NF-κB, which could be significantly attenuated by GPER1 blockage or knock-down in both SKBR3 and BT-20 cells. Moreover, increased secretion of IL-8 induced by E2 was also inhibited either by specific inhibitors for GPER1, ERK, AKT, and NF-κB, or by knock-down for GPER1. Furthermore, E2 could activate the migration and invasion of both SKBR3 and BT-20 cells, which in turn could also be inhibited by blocking GPER1, ERK, AKT, NF-κB, and CXCR1, respectively, or knock-down for GPER1 and CXCR1. In conclusion, we demonstrated that estrogen signaling via GPER1 associated with the metastasis of breast cancer, which might be through GPER1/ERK&AKT/NF-κB/IL-8/CXCR1 cascade. The cross-talk between GPER1 and CXCR1 could be another potential target for the therapy of metastatic breast cancer.
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Affiliation(s)
- Qi-Feng Jiang
- Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing, China
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