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De Lazzari G, Opattova A, Arena S. Novel frontiers in urogenital cancers: from molecular bases to preclinical models to tailor personalized treatments in ovarian and prostate cancer patients. J Exp Clin Cancer Res 2024; 43:146. [PMID: 38750579 PMCID: PMC11094891 DOI: 10.1186/s13046-024-03065-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 05/08/2024] [Indexed: 05/19/2024] Open
Abstract
Over the last few decades, the incidence of urogenital cancers has exhibited diverse trends influenced by screening programs and geographical variations. Among women, there has been a consistent or even increased occurrence of endometrial and ovarian cancers; conversely, prostate cancer remains one of the most diagnosed malignancies, with a rise in reported cases, partly due to enhanced and improved screening efforts.Simultaneously, the landscape of cancer therapeutics has undergone a remarkable evolution, encompassing the introduction of targeted therapies and significant advancements in traditional chemotherapy. Modern targeted treatments aim to selectively address the molecular aberrations driving cancer, minimizing adverse effects on normal cells. However, traditional chemotherapy retains its crucial role, offering a broad-spectrum approach that, despite its wider range of side effects, remains indispensable in the treatment of various cancers, often working synergistically with targeted therapies to enhance overall efficacy.For urogenital cancers, especially ovarian and prostate cancers, DNA damage response inhibitors, such as PARP inhibitors, have emerged as promising therapeutic avenues. In BRCA-mutated ovarian cancer, PARP inhibitors like olaparib and niraparib have demonstrated efficacy, leading to their approval for specific indications. Similarly, patients with DNA damage response mutations have shown sensitivity to these agents in prostate cancer, heralding a new frontier in disease management. Furthermore, the progression of ovarian and prostate cancer is intricately linked to hormonal regulation. Ovarian cancer development has also been associated with prolonged exposure to estrogen, while testosterone and its metabolite dihydrotestosterone, can fuel the growth of prostate cancer cells. Thus, understanding the interplay between hormones, DNA damage and repair mechanisms can hold promise for exploring novel targeted therapies for ovarian and prostate tumors.In addition, it is of primary importance the use of preclinical models that mirror as close as possible the biological and genetic features of patients' tumors in order to effectively translate novel therapeutic findings "from the bench to the bedside".In summary, the complex landscape of urogenital cancers underscores the need for innovative approaches. Targeted therapy tailored to DNA repair mechanisms and hormone regulation might offer promising avenues for improving the management and outcomes for patients affected by ovarian and prostate cancers.
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Affiliation(s)
- Giada De Lazzari
- Candiolo Cancer Institute, FPO - IRCCS, Laboratory of Translational Cancer Genetics, Strada Provinciale 142, Km 3.95, Candiolo, TO, ZIP 10060, Italy
| | - Alena Opattova
- Candiolo Cancer Institute, FPO - IRCCS, Laboratory of Translational Cancer Genetics, Strada Provinciale 142, Km 3.95, Candiolo, TO, ZIP 10060, Italy
| | - Sabrina Arena
- Candiolo Cancer Institute, FPO - IRCCS, Laboratory of Translational Cancer Genetics, Strada Provinciale 142, Km 3.95, Candiolo, TO, ZIP 10060, Italy.
- Department of Oncology, University of Torino, Strada Provinciale 142, Km 3.95, Candiolo, TO, ZIP 10060, Italy.
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Sun L, Ji WX, Li Y, Li ZL, Duan CC, Xia BR, Xiao L. The PAPSS1 gene is a modulator of response to cisplatin by regulating estrogen receptor alpha signaling activity in ovarian cancer cells. J Ovarian Res 2023; 16:187. [PMID: 37684671 PMCID: PMC10486135 DOI: 10.1186/s13048-023-01262-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 08/16/2023] [Indexed: 09/10/2023] Open
Abstract
BACKGROUND Cancer cells may develop resistance to cisplatin by various mechanisms. Yet, the exact mechanism of cisplatin in ovarian cancer remains unclear. Recent studies have shown that 3'-phospoadenosine 5'-phosphosulfate synthase 1 (PAPSS1) inhibition combined with low-dose cisplatin increases DNA damage. The aim of this study was to determine the value of targeting PAPSS1 as a cisplatin modulator in epithelial ovarian cancer (EOC). RESULTS Increased expression of PAPSS1 was observed in both EOC cells and tissues. Also, its higher nuclear expression was distinctly associated with FIGO (The International Federation of Gynecology and Obstetrics) stage, histological subtype, metastasis, and recurrence. Down-regulation of the PAPSS1 gene increased the cisplatin sensitivity of EOC in vitro and in vivo. Expression of PAPSS1 was negatively correlated with estrogen receptor α (ERα) in EOC. Also, low nuclear PAPSS1 and high nuclear ERα expression in EOC were associated with longer overall survival and progression-free survival in all ovarian cancer and ovarian cancer patients who received platinum-based chemotherapy. PAPSS1 silencing increased the activity of ERα-signaling in EOC cells, thus sensitizing tumors to cisplatin. CONCLUSIONS These findings characterize a novel interplay between PAPSS1-mediated sulfation and ERα-signaling in EOC cisplatin resistance. PAPSS1 may be exploited as a cisplatin-sensitizing therapeutic target.
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Affiliation(s)
- Lei Sun
- Department of Obstetrics & Gynecology, the First Affiliated Hospital, Anhui Medical University, Hefei, 230020, Anhui, P. R. China
| | - Wei-Xue Ji
- Department of Obstetrics & Gynecology, the First Affiliated Hospital, Anhui Medical University, Hefei, 230020, Anhui, P. R. China
| | - Yan Li
- Department of Pathology and Pathophysiology, School of Medicine, Jianghan University, Wuhan, 430056, Hubei, P. R. China
| | - Ze-Lian Li
- Department of Obstetrics & Gynecology, the First Affiliated Hospital, Anhui Medical University, Hefei, 230020, Anhui, P. R. China
| | - Can-Can Duan
- Department of Obstetrics & Gynecology, the First Affiliated Hospital, Anhui Medical University, Hefei, 230020, Anhui, P. R. China
| | - Bai-Rong Xia
- Department of Gynecology Oncology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230031, Anhui, P. R. China.
| | - Lan Xiao
- Department of Obstetrics & Gynecology, the First Affiliated Hospital, Anhui Medical University, Hefei, 230020, Anhui, P. R. China.
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3
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Zhong X, Sun Y, Lu Y, Xu L. Immunomodulatory role of estrogen in ischemic stroke: neuroinflammation and effect of sex. Front Immunol 2023; 14:1164258. [PMID: 37180115 PMCID: PMC10167039 DOI: 10.3389/fimmu.2023.1164258] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Accepted: 04/12/2023] [Indexed: 05/15/2023] Open
Abstract
Although estrogen is predominantly related to the maintenance of reproductive functioning in females, it mediates various physiological effects in nearly all tissues, especially the central nervous system. Clinical trials have revealed that estrogen, especially 17β-estradiol, can attenuate cerebral damage caused by an ischemic stroke. One mechanism underlying this effect of 17β-estradiol is by modulating the responses of immune cells, indicating its utility as a novel therapeutic strategy for ischemic stroke. The present review summarizes the effect of sex on ischemic stroke progression, the role of estrogen as an immunomodulator in immune reactions, and the potential clinical value of estrogen replacement therapy. The data presented here will help better understand the immunomodulatory function of estrogen and may provide a basis for its novel therapeutic use in ischemic stroke.
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Affiliation(s)
- Xiaojun Zhong
- Department of Neurosurgery, Zhejiang Rongjun Hospital, Jiaxing, China
| | - Yulin Sun
- Department of Neurosurgery, Zhejiang Rongjun Hospital, Jiaxing, China
| | - Yajun Lu
- Department of Internal Medicine, Sunto Women & Children’s Hospital, Jiaxing, China
| | - Lei Xu
- Department of Neurology, Zhejiang Rongjun Hospital, Jiaxing, China
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Li J, Wang Y, Wang L, Hao D, Li P, Su M, Zhao Z, Liu T, Tai L, Lu J, Di LJ. Metabolic modulation of CtBP dimeric status impacts the repression of DNA damage repair genes and the platinum sensitivity of ovarian cancer. Int J Biol Sci 2023; 19:2081-2096. [PMID: 37151877 PMCID: PMC10158025 DOI: 10.7150/ijbs.80952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 03/03/2023] [Indexed: 05/09/2023] Open
Abstract
Platinum drug-based chemotherapy plays a dominant role in OC (ovarian cancer) treatment. The expression of DNA damage repair (DDR) genes is critical in distinguishing drug-sensitive and drug-refractory patients, as well as in the development of drug resistance in long-term treated patients. CtBP is a highly expressed oncogene in OC and was found to repress DDR genes expression in our previous study. In the present study, the formation of CtBP dimers in live cells was studied, and the functional differences between monomeric and oligomeric CtBP were explored by CHIP-seq and RNA-seq. Besides, the dynamics of CtBP dimer formation in response to the metabolic modulation were investigated by the protein fragment complementation (PCA) assays. We show that dimerized CtBP, but not the dimerization-defective mutant, binds to and represses DDR gene expression in OC cells. Treatment of the mice tumors grown from engrafted OC cells by cisplatin disclosed that high-level CtBP expression promotes the CtBP dimerization and increases the therapeutic effect of cisplatin. Moreover, the CtBP dimerization is responsive to the intracellular metabolic status as represented by the free NADH abundance. Metformin was found to increase the dimerization of CtBP and potentiate the therapeutic effect of cisplatin in a CtBP dimerization-dependent manner. Our data suggest that the CtBP dimerization status is a potential biomarker to predict platinum drug sensitivity in patients with ovarian cancer and a target of metformin to improve the therapeutic effect of platinum drugs in OC treatment.
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Affiliation(s)
- Jingjing Li
- Department of Biological Sciences, Faculty of Health Sciences, University of Macau, Macau, PR China
- Cancer Center, Faculty of Health Sciences, University of Macau, Macau, PR China
- Current address: Jinming Yu Academician Workstation of Oncology, Affiliated Hospital of Weifang Medical University, Weifang, Shandong, PR China
| | - Yuan Wang
- Department of Biological Sciences, Faculty of Health Sciences, University of Macau, Macau, PR China
- Cancer Center, Faculty of Health Sciences, University of Macau, Macau, PR China
- Current address: State Key Laboratory of Respiratory Disease & National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, PR China
| | - Li Wang
- Department of Biological Sciences, Faculty of Health Sciences, University of Macau, Macau, PR China
- Cancer Center, Faculty of Health Sciences, University of Macau, Macau, PR China
- Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Macau, PR China
- Ministry of Education Frontiers Science Center for Precision Oncology, University of Macau, PR China
| | - Dapeng Hao
- Department of Biological Sciences, Faculty of Health Sciences, University of Macau, Macau, PR China
- Cancer Center, Faculty of Health Sciences, University of Macau, Macau, PR China
| | - Peipei Li
- Department of Biological Sciences, Faculty of Health Sciences, University of Macau, Macau, PR China
- Cancer Center, Faculty of Health Sciences, University of Macau, Macau, PR China
| | - Minxia Su
- Ministry of Education Frontiers Science Center for Precision Oncology, University of Macau, PR China
- Institute of Chinese Medical Sciences, University of Macau, Macau, PR China
| | - Zhiqiang Zhao
- Department of Biological Sciences, Faculty of Health Sciences, University of Macau, Macau, PR China
- Cancer Center, Faculty of Health Sciences, University of Macau, Macau, PR China
| | - Tianyu Liu
- Department of Biological Sciences, Faculty of Health Sciences, University of Macau, Macau, PR China
- Cancer Center, Faculty of Health Sciences, University of Macau, Macau, PR China
- Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Macau, PR China
- Ministry of Education Frontiers Science Center for Precision Oncology, University of Macau, PR China
| | - Lixin Tai
- Department of Biological Sciences, Faculty of Health Sciences, University of Macau, Macau, PR China
- Cancer Center, Faculty of Health Sciences, University of Macau, Macau, PR China
- Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Macau, PR China
- Ministry of Education Frontiers Science Center for Precision Oncology, University of Macau, PR China
| | - jinjian Lu
- Ministry of Education Frontiers Science Center for Precision Oncology, University of Macau, PR China
- Institute of Chinese Medical Sciences, University of Macau, Macau, PR China
| | - Li-jun Di
- Department of Biological Sciences, Faculty of Health Sciences, University of Macau, Macau, PR China
- Cancer Center, Faculty of Health Sciences, University of Macau, Macau, PR China
- Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Macau, PR China
- Ministry of Education Frontiers Science Center for Precision Oncology, University of Macau, PR China
- ✉ Corresponding author: Dr. Li-jun Di. . Faculty of Health Sciences, University of Macau, Macau, SAR of People's Republic of China, E12-4009, Avenida da Universidade, Taipa, Macau, China. Tel. 853-88224497; Fax. 853-88222314
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5
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Zhang S, Li E, Liu Z, Shang H, Chen Y, Jing H. Nanoparticle-based Olaparib delivery enhances its effect, and improves drug sensitivity to cisplatin in triple negative breast cancer. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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6
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Zhang ML, Zhang MN, Wang WL, Chen H, Wang X, Li X, Li L, Tong F. 17β-estradiol inhibits vascular proliferation and inflammation by reducing NF-κB expression induced by increased crosstalk between KLF5 and ERα. Biochem Biophys Res Commun 2022; 625:181-187. [DOI: 10.1016/j.bbrc.2022.07.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 07/14/2022] [Indexed: 11/02/2022]
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7
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Li H, Zheng X, Gao J, Leung KS, Wong MH, Yang S, Liu Y, Dong M, Bai H, Ye X, Cheng L. Whole transcriptome analysis reveals non-coding RNA's competing endogenous gene pairs as novel form of motifs in serous ovarian cancer. Comput Biol Med 2022; 148:105881. [DOI: 10.1016/j.compbiomed.2022.105881] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 06/30/2022] [Accepted: 07/16/2022] [Indexed: 11/03/2022]
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Pejovic T, Abate PV, Ma H, Thiessen J, Corless CL, Peterson A, Allard-Chamard H, Labrie M. Single-Cell Proteomics Analysis of Recurrent Low-Grade Serous Ovarian Carcinoma and Associated Brain Metastases. Front Oncol 2022; 12:903806. [PMID: 35692807 PMCID: PMC9174542 DOI: 10.3389/fonc.2022.903806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 04/20/2022] [Indexed: 11/23/2022] Open
Abstract
Between 2% and 6% of epithelial ovarian cancer (EOC) patients develop brain metastases (brain mets), which are incurable and invariably result in death. This poor outcome is associated with a lack of established guidelines for the detection and treatment of brain mets in EOC patients. In this study, we characterize an unusual case of low-grade serous ovarian carcinoma (LGSOC) that metastasized to the brain. Using a spatially oriented single-cell proteomics platform, we compared sequential biopsies of a primary tumor with a peritoneal recurrence and brain mets. We identified several targetable oncogenic pathways and immunosuppressive mechanisms that are amplified in the brain mets and could be involved in the progression of LGSOC to the brain. Furthermore, we were able to identify cell populations that are shared between the primary tumor and the brain mets, suggesting that cells that have a propensity for metastasis to the brain could be identified early during the course of disease. Taken together, our findings further a path for personalized therapeutic decisions in LGSOC.
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Affiliation(s)
- Tanja Pejovic
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR, United States
| | - Pierre-Valérien Abate
- Department of Immunology and Cell Biology, Université de Sherbrooke, Sherbrooke, QC, Canada.,Department of Obstetrics and Gynecology, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Hongli Ma
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR, United States
| | - Jaclyn Thiessen
- Department of Diagnostic Radiology, Oregon Health & Science University, Portland, OR, United States
| | - Christopher L Corless
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR, United States
| | - Abigail Peterson
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR, United States
| | - Hugues Allard-Chamard
- Service of Rheumatology, Department of Medicine, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Marilyne Labrie
- Department of Immunology and Cell Biology, Université de Sherbrooke, Sherbrooke, QC, Canada.,Department of Obstetrics and Gynecology, Université de Sherbrooke, Sherbrooke, QC, Canada
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9
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Zhao Y, Wang X, Liu Y, Wang HY, Xiang J. The effects of estrogen on targeted cancer therapy drugs. Pharmacol Res 2022; 177:106131. [DOI: 10.1016/j.phrs.2022.106131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/29/2022] [Accepted: 02/10/2022] [Indexed: 10/19/2022]
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10
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Structure-based design and synthesis of conformationally constrained derivatives of methyl-piperidinopyrazole (MPP) with estrogen receptor (ER) antagonist activity. Bioorg Chem 2021; 119:105554. [PMID: 34923243 DOI: 10.1016/j.bioorg.2021.105554] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 11/11/2021] [Accepted: 12/08/2021] [Indexed: 11/23/2022]
Abstract
Nuclear Estrogen receptors (ER) are cytoplasmic proteins; translocated to the nucleus to induce transcriptional signals after getting bound to the estrogen hormone. ER activation implicated in cancer cell proliferation of female reproductive organs. Thus, the discovery of ER antagonists is a reliable strategy to combat estrogen-dependent breast cancer. Endometrial carcinoma is one of the complications encountered upon long-term therapy by selective estrogen receptor modulators (SERMs) like Tamoxifen (TMX) and methyl piperidinopyrazole (MPP). Thus, the ER-full antagonist is a solution to improve the safety of this class of therapeutics during the treatment of breast cancer. We selected MPP as a lead structure to design conformationally constrained analogs. Structural rigidification is a proven strategy to transform the SERMs into full antagonists. Accordingly, we synthesized 7-methoxy-3-(4-methoxyphenyl)-4,5-dihydro-2H-benzo[g]indazoles (4), (6a-c),(8-12) along with the biphenolic counterparts(13-19)that are the anticipated active metabolites. The 4-nitrophenyl derivative(4)is with the most balanced profile regardingthe in vivoanti-uterotrophic potential (EC50 = 4.160 μM); and the cytotoxicity assay of the corresponding active metabolite(13)against ER+ breast cancer cell lines (MCF-7 IC50 = 7.200 μM, T-47D IC50 = 11.710 μM). The inconsiderable uterotrophic activities of the elaborated ER-antagonists and weak antiproliferative activity of the compound(13)against ovarian cancer (SKOV-3 IC50 = 29.800 μM) highlighted it as a good start point to elaborate potential ER-full antagonists devoid of endometrial carcinoma. Extending the pendant chain that protrudes from the 2-(4-(substituted)-phenyl) ring of the new benzo-indazoles is recommended for enhancing the potency based on the binding mode of compound(13)in the ligand-binding domain (LBD) of ER.
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11
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Expression of hormone receptors predicts survival and platinum sensitivity of high-grade serous ovarian cancer. Biosci Rep 2021; 41:228453. [PMID: 33891016 PMCID: PMC8112847 DOI: 10.1042/bsr20210478] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 04/17/2021] [Accepted: 04/20/2021] [Indexed: 01/03/2023] Open
Abstract
High-grade serous ovarian cancer (HGSOC) has abundant expression of hormone receptors, including androgen receptor (AR), estrogen receptor α (ER), and progesterone receptor (PR). The effects of hormone receptors on prognosis of HGSOC were first evaluated in online databases. Their prognostic values were then explored and validated in our inhouse TJ-cohort (92 HGSOC patients) and in a validation cohort (33 HGSOC patients), wherein hormone receptors were detected immunohistochemically. High expression of hormone receptors denoted longer progression-free survival (PFS), overall survival (OS), and platinum-free interval (PFI). Platinum-sensitive patients had higher expression of hormone receptors than their counterparts. Correlation analysis revealed significant positive correlations between hormone receptors expression and survival. AR, ER, and PR had predictive and prognostic values, alone and in combination. By receiver operating characteristic curve (ROC) analysis, co-expression of AR, ER, and PR had an improved predictive performance with an area under the curve (AUC) value of 0.945. Expression of hormone receptors predicts survival and platinum sensitivity of HGSOC. AR, ER, and PR might be feasible prognostic biomarkers for HGSOC by immunohistochemical analysis.
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12
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ESR1 ChIP-Seq Identifies Distinct Ligand-Free ESR1 Genomic Binding Sites in Human Hepatocytes and Liver Tissue. Int J Mol Sci 2021; 22:ijms22031461. [PMID: 33540646 PMCID: PMC7867289 DOI: 10.3390/ijms22031461] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 01/22/2021] [Accepted: 01/29/2021] [Indexed: 01/11/2023] Open
Abstract
The estrogen receptor alpha (ESR1) is an important gene transcriptional regulator, known to mediate the effects of estrogen. Canonically, ESR1 is activated by its ligand estrogen. However, the role of unliganded ESR1 in transcriptional regulation has been gaining attention. We have recently shown that ligand-free ESR1 is a key regulator of several cytochrome P450 (CYP) genes in the liver, however ligand-free ESR1 has not been characterized genome-wide in the human liver. To address this, ESR1 ChIP-Seq was conducted in human liver samples and in hepatocytes with or without 17beta-estradiol (E2) treatment. We identified both ligand-dependent and ligand-independent binding sites throughout the genome. These two ESR1 binding categories showed different genomic localization, pathway enrichment, and cofactor colocalization, indicating different ESR1 regulatory function depending on ligand availability. By analyzing existing ESR1 data from additional human cell lines, we uncovered a potential ligand-independent ESR1 activity, namely its co-enrichment with the zinc finger protein 143 (ZNF143). Furthermore, we identified ESR1 binding sites near many gene loci related to drug therapy, including the CYPs. Overall, this study shows distinct ligand-free and ligand-bound ESR1 chromatin binding profiles in the liver and suggests the potential broad influence of ESR1 in drug metabolism and drug therapy.
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Deregulated estrogen receptor signaling and DNA damage response in breast tumorigenesis. Biochim Biophys Acta Rev Cancer 2020; 1875:188482. [PMID: 33260050 DOI: 10.1016/j.bbcan.2020.188482] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 11/05/2020] [Accepted: 11/12/2020] [Indexed: 02/07/2023]
Abstract
Carriers of BRCA1 mutations have a higher chance of developing cancers in hormone-responsive tissues like the breast, ovary and prostate, compared to other tissues. These tumors generally exhibit basal-like characters and do not express estrogen receptor (ER) or progesterone receptor (PR). Intriguingly, BRCA1 mutated breast cancers have a less favorable clinical outcome, as they will not respond to hormone therapy. BRCA1 has been reported to exhibit ligand dependent and independent transcriptional inhibition of ER-α; however, there exists a controversy on whether BRCA1 induces or inhibits ER-α expression. The mechanisms associated with resistance of BRCA1 mutated cancers to hormone therapy, as well as the tissue restriction exhibited by BRCA1 mutated tumors are still largely unknown. BRCA1 mutated tumors possess increased DNA damages and decreased genomic integrity, as BRCA1 plays a cardinal role in high fidelity DNA damage repair pathways, like homologous recombination (HR). The existence of cross regulatory signaling networks between ER-α and BRCA1 speculates a role of ER on BRCA1 dependent DDR pathways. Thus, the loss or haploinsufficiency of BRCA1 and the consequential deregulation of ER-α signaling may result in persistence of unrepaired DNA damages, eventually leading to tumorigenesis. Therefore, understanding of this cross-talk between ER-α and BRCA1, with regard to DDR, will provide critical insights to steer drug development and therapy for breast/ovarian cancers. This review discusses the mechanisms by which estrogen and ER signaling influence BRCA1 mediated DNA damage response and repair pathways in the mammalian system.
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Yu M, Qi H, Gao X. Daidzein promotes milk synthesis and proliferation of mammary epithelial cells via the estrogen receptor α-dependent NFκB1 activation. Anim Biotechnol 2020; 33:43-52. [PMID: 32401613 DOI: 10.1080/10495398.2020.1763376] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Isoflavones possess a wide range of physiological effects. However, it is still unclear whether isoflavones can promote milk synthesis in mammary gland. This study aimed to determine the effects of a main soy isoflavone, daidzein, on milk synthesis and proliferation of mammary epithelial cells (MECs) and reveal the underlying molecular mechanism. Primary bovine MECs were treated with different concentrations of daidzein (0, 5, 10, 20, 40, and 80 μM). Daidzein dose-dependently promoted α- and β-casein and lipid synthesis, cell cycle transition, and cell amount, with the best stimulatory effect at 20 μM. Daidzein also stimulated mTOR activation and Cyclin D1 and SREBP-1c expression. Daidzein induced the expression and nuclear localization of estrogen receptor α (ERα), and ERα knockdown blocked the stimulation of daidzein on these above signaling pathways. ERα knockdown also abolished the stimulation of daidzein on NFκB1 expression and phosphorylation, and NFκB1 was required for daidzein to enhance the mTOR, Cyclin D1 and SREBP-1c signaling pathways. In summary, our findings reveal that daidzein stimulates milk synthesis and proliferation of MECs via the ERα-dependent NFκB1 activation.
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Affiliation(s)
- Mengmeng Yu
- College of Animal Science, Yangtze University, Jingzhou, Hubei, China
| | - Hao Qi
- College of Animal Science, Yangtze University, Jingzhou, Hubei, China
| | - Xuejun Gao
- College of Animal Science, Yangtze University, Jingzhou, Hubei, China
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Bhattacharyya R, Ha MJ, Liu Q, Akbani R, Liang H, Baladandayuthapani V. Personalized Network Modeling of the Pan-Cancer Patient and Cell Line Interactome. JCO Clin Cancer Inform 2020; 4:399-411. [PMID: 32374631 PMCID: PMC7265783 DOI: 10.1200/cci.19.00140] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/18/2020] [Indexed: 12/20/2022] Open
Abstract
PURPOSE Personalized network inference on diverse clinical and in vitro model systems across cancer types can be used to delineate specific regulatory mechanisms, uncover drug targets and pathways, and develop individualized predictive models in cancer. METHODS We developed TransPRECISE (personalized cancer-specific integrated network estimation model), a multiscale Bayesian network modeling framework, to analyze the pan-cancer patient and cell line interactome to identify differential and conserved intrapathway activities, to globally assess cell lines as representative models for patients, and to develop drug sensitivity prediction models. We assessed pan-cancer pathway activities for a large cohort of patient samples (> 7,700) from the Cancer Proteome Atlas across ≥ 30 tumor types, a set of 640 cancer cell lines from the MD Anderson Cell Lines Project spanning 16 lineages, and ≥ 250 cell lines' response to > 400 drugs. RESULTS TransPRECISE captured differential and conserved proteomic network topologies and pathway circuitry between multiple patient and cell line lineages: ovarian and kidney cancers shared high levels of connectivity in the hormone receptor and receptor tyrosine kinase pathways, respectively, between the two model systems. Our tumor stratification approach found distinct clinical subtypes of the patients represented by different sets of cell lines: patients with head and neck tumors were classified into two different subtypes that are represented by head and neck and esophagus cell lines and had different prognostic patterns (456 v 654 days of median overall survival; P = .02). High predictive accuracy was observed for drug sensitivities in cell lines across multiple drugs (median area under the receiver operating characteristic curve > 0.8) using Bayesian additive regression tree models with TransPRECISE pathway scores. CONCLUSION Our study provides a generalizable analytic framework to assess the translational potential of preclinical model systems and to guide pathway-based personalized medical decision making, integrating genomic and molecular data across model systems.
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Affiliation(s)
| | - Min Jin Ha
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Qingzhi Liu
- Department of Biostatistics, University of Michigan, Ann Arbor, MI
| | - Rehan Akbani
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Han Liang
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX
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