1
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Hasan MM, Nabi AN, Yasmin T. Comprehensive analysis predicting effects of deleterious SNPs of human progesterone receptor gene on its structure and functions: a computational approach. J Biomol Struct Dyn 2023; 41:8002-8017. [PMID: 36166622 DOI: 10.1080/07391102.2022.2127908] [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: 07/22/2022] [Accepted: 09/17/2022] [Indexed: 10/14/2022]
Abstract
Progesterone receptor plays a crucial role in the development of the mammary gland and breast cancer. Single nucleotide polymorphisms (SNPs) within its gene, PGR, are associated with the risk of miscarriages and preterm birth as well as many cancers across different populations. The main aim of this work is to investigate the most deleterious SNPs in the PGR gene to identify potential biomarkers for various disease susceptibility and treatments. Both sequence and structure-based computational approaches were adopted and in total 11 nsSNPs have been filtered out of 674 nsSNPs along with seven non-coding SNPs. R740Q, I744T and D746E belonged to a mutation cluster. R740Q, D746E along with S865L altered H-bond interactions within the receptor. The same mutations have been found to be associated with several cancers including uterine and breast cancer among others. It is, therefore, possible that the high-risk SNPs associated with cancers may exert their effect by causing changes in the protein structure, particularly in its bonding patterns, and thus affecting its function. In addition, seven non-coding SNPs that were located in the UTR region created a new miRNA site while three SNPs disrupted a conserved miRNA site. These high-risk SNPs can play an instrumental role in generating a dataset of the PGR gene's SNPs. Thus, the present study may pave the way to design and develop novel therapeutics for overcoming the challenges associated with certain cancers and pregnancy that result from a change in the protein structure and function due to the SNP mutations in the PGR gene.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- M Mahbub Hasan
- Population Genetics Laboratory, Department of Biochemistry and Molecular Biology, University of Dhaka, Dhaka, Bangladesh
| | - Ahm Nurun Nabi
- Population Genetics Laboratory, Department of Biochemistry and Molecular Biology, University of Dhaka, Dhaka, Bangladesh
| | - Tahirah Yasmin
- Population Genetics Laboratory, Department of Biochemistry and Molecular Biology, University of Dhaka, Dhaka, Bangladesh
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2
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Crafts TD, Tonneson JE, Wolfe BM, Stroud AM. Obesity and breast cancer: Preventive and therapeutic possibilities for bariatric surgery. Obesity (Silver Spring) 2022; 30:587-598. [PMID: 35195366 DOI: 10.1002/oby.23369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 11/10/2021] [Accepted: 11/29/2021] [Indexed: 11/07/2022]
Abstract
Breast cancer is the most common and second deadliest malignancy in women. With rising obesity rates and building evidence for a strong association with obesity, the incidence of breast cancer can be expected to increase. Weight loss reduces breast cancer risk, the mechanisms of which are still poorly understood. As an effective therapy for obesity, bariatric surgery may be a powerful tool in breast cancer prevention and treatment. This review details the potential physiologic mechanisms that may underlie this association, as well as recently published studies that reinforce the link between bariatric surgery and a reduction in incident breast cancer. The use of bariatric surgery as an adjunct therapy in endometrial cancer also raises the potential for similar use in select breast cancer patients. Despite the expanding potential applications of bariatric surgery in this field, publications to date have been strictly observational, highlighting a need for future clinical trials.
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Affiliation(s)
- Trevor D Crafts
- Department of Surgery, Oregon Health & Science University, Portland, Oregon, USA
| | - Jennifer E Tonneson
- Department of Surgery, Oregon Health & Science University, Portland, Oregon, USA
| | - Bruce M Wolfe
- Department of Surgery, Oregon Health & Science University, Portland, Oregon, USA
| | - Andrea M Stroud
- Department of Surgery, Oregon Health & Science University, Portland, Oregon, USA
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3
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Vanni G, Materazzo M, Pellicciaro M, Morando L, Portarena I, Anemona L, D'Angelillo MR, Barbarino R, Chiaravalloti A, Meucci R, Perretta T, Deiana C, Orsaria P, Caspi J, Pistolese CA, Buonomo OC. Does Age Matter? Estimating Risks of Locoregional Recurrence After Breast-conservative Surgery. In Vivo 2021; 34:1125-1132. [PMID: 32354901 DOI: 10.21873/invivo.11884] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 03/12/2020] [Accepted: 03/13/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND/AIM In 2016, in the United States, more than 50% of breast cancer (BC) cases were diagnosed in patients older than 60 years of age. Our study aimed to estimate the risk of locoregional recurrence (LR) in patients who underwent breast-conservative treatment (BCT), according to age. PATIENTS AND METHODS This retrospective monocentric study analyzed 613 cases of patients who underwent BCT between 2003 and 2014. Patients were divided into groups according to age: Under70 (under 70 years old) and Over70 (above 70 years old). Margins width, histology results, prognostic and predictive factors were compared. Subgroup analysis was performed for patients who experienced LR. RESULTS LR Incidence among Under70 and Over70 was 5.4% and 1.7%, respectively (p<0.01). Group Over70 is characterized by larger tumors and a lower Ki67 index (p<0.01). CONCLUSION Operation time reduction, better aesthetic results and reduced LR risk support BCT. The Over70 group exhibited better outcomes in terms of LR despite larger tumor dimensions.
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Affiliation(s)
- Gianluca Vanni
- Breast Unit - Department of Surgical Science, Policlinico Tor Vergata University, Rome, Italy
| | - Marco Materazzo
- Breast Unit - Department of Surgical Science, Policlinico Tor Vergata University, Rome, Italy
| | - Marco Pellicciaro
- Breast Unit - Department of Surgical Science, Policlinico Tor Vergata University, Rome, Italy
| | - Ljuba Morando
- Breast Unit - Department of Surgical Science, Policlinico Tor Vergata University, Rome, Italy
| | - Ilaria Portarena
- Department of Oncology, Policlinico Tor Vergata University, Rome, Italy
| | - Lucia Anemona
- Anatomic Pathology, Department of Experimental Medicine, Policlinico Tor Vergata University, Rome, Italy
| | - Maria Rolando D'Angelillo
- Radiotherapy Unit, Department of Oncology and Hematology, Policlinico Tor Vergata University, Rome, Italy
| | - Rosaria Barbarino
- Radiotherapy Unit, Department of Oncology and Hematology, Policlinico Tor Vergata University, Rome, Italy
| | - Agostino Chiaravalloti
- Department of Biomedicine and Prevention, Policlinico Tor Vergata University, Rome, Italy.,IRCCS Neuromed, UOC Medicina Nucleare, Pozzilli, Italy
| | - Rosaria Meucci
- Breast Unit - Department of Surgical Science, Policlinico Tor Vergata University, Rome, Italy.,Department of Diagnostic Imaging and Interventional Radiology, Molecular Imaging and Radiotherapy, Policlinico Tor Vergata University, Rome, Italy
| | - Tommaso Perretta
- Department of Diagnostic Imaging and Interventional Radiology, Molecular Imaging and Radiotherapy, Policlinico Tor Vergata University, Rome, Italy
| | - Camilla Deiana
- Breast Unit - Department of Surgical Science, Policlinico Tor Vergata University, Rome, Italy
| | - Paolo Orsaria
- Department of Breast Surgery, University Campus Bio-Medico, Rome, Italy
| | - Jonathan Caspi
- Breast Unit - Department of Surgical Science, Policlinico Tor Vergata University, Rome, Italy
| | - Chiara Adriana Pistolese
- Department of Diagnostic Imaging and Interventional Radiology, Molecular Imaging and Radiotherapy, Policlinico Tor Vergata University, Rome, Italy
| | - Oreste Claudio Buonomo
- Breast Unit - Department of Surgical Science, Policlinico Tor Vergata University, Rome, Italy
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4
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Ganguly S, Naik D, Muskara A, Mian OY. The Nexus of Endocrine Signaling and Cancer: How Steroid Hormones Influence Genomic Stability. Endocrinology 2021; 162:6015749. [PMID: 33260197 PMCID: PMC7707372 DOI: 10.1210/endocr/bqaa177] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Indexed: 12/13/2022]
Abstract
Endocrine-driven malignancies, including breast and prostate cancer, are among the most common human cancers. The relationship between sex steroid hormones (eg, androgen, estrogen, and progesterone), their cognate receptors, and genomic stability lie at the center of endocrine-driven cancer development, progression, and therapeutic resistance. A variety of direct and indirect mechanisms have been described that link steroid hormone signaling to the loss of genomic integrity that drives early carcinogenesis. These effects are often enriched within endocrine receptor cistromes, accounting for the high proportion of mutations and rearrangements in the region of hormone response elements. In other cases, the effects are generalized and rely on a complex array of genetic, epigenetic, and metabolic interactions. Both androgen and estrogen receptors directly modulate the DNA damage response by trans-activating DNA damage response genes and redirecting the cellular repair machinery in the wake of genotoxic stress. Here we review the key mechanistic underpinnings of the relationship between sex steroid hormone receptors and genomic stability. In addition, we summarize emerging research in this area and discuss important implications for cancer prevention and treatment.
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Affiliation(s)
| | - Divya Naik
- Cleveland Clinic Lerner Research Institute, Cleveland, OH
| | - Andrew Muskara
- Cleveland Clinic Lerner Research Institute, Cleveland, OH
| | - Omar Y Mian
- Cleveland Clinic Lerner Research Institute, Cleveland, OH
- Cleveland Clinic Taussig Cancer Center, Cleveland, OH
- Correspondence: Omar Y. Mian, MD, PhD, Department of Translational Hematology & Oncology Research (THOR), Cleveland Clinic, Taussig Cancer Center, 9500 Euclid Ave., CA50, Cleveland, OH 44195, USA. E-mail:
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5
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Tachibana T, Kasajima A, Aoki T, Tabata T, McNamara K, Yazdani S, Satoko S, Fujishima F, Motoi F, Unno M, Sasano H. Progesteron receptor expression in insulin producing cells of neuroendocrine neoplasms. J Steroid Biochem Mol Biol 2020; 201:105694. [PMID: 32437964 DOI: 10.1016/j.jsbmb.2020.105694] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 05/02/2020] [Accepted: 05/04/2020] [Indexed: 12/15/2022]
Abstract
Progesterone receptor (PgR) inhibits cell proliferation in pancreatic neuroendocrine neoplasms (PanNEN). In non-neoplastic pancreas, loss of PgR induces β-cell proliferation and insulin production. However, detailed association between PgR and insulin producing PanNENs is poorly understood. Insulin, proinsulin, and PgR were immunolocalized in 82 PanNENs (54 non-functioning PanNENs: NF-PanNENs and 28 insulinomas). The status of immunoreactivity was compared to the clinicopathological factors of the patients. Immunoreactivity was also confirmed by employing the double-immunohistochemistry. These results were also compared with those in non-neoplastic Langerhans islets. PgR immunoreactivity was significantly higher in insulinomas than that in NF-PanNENs (p < 0.001). Insulin and proinsulin immunoreactivity was also detected in 20 (37 %) of (single cell) insulin positive NFs (Inspos-NF-PanNEN), in which PgR expression was higher than in insulin negative NF-PanNENs (Insneg-NF-PanNEN, p = 0.03). The ratio of PgR-insulin double positive cells to overall insulin positive cells, as well as PgR-proinsulin double positive cells to proinsulin positive cells, was detected to the same degree in insulinoma (PgR-insulin 70 %, PgR-proinsulin 66 %), Inspos-NF-PanNENs (PgR-insulin 65 %, PgR-proinsulin 68 %) and normal islet (PgR-insulin 80 %, PgR-proinsulin 72 %). PgR and insulin expressing cells colocalize in tumor cells of the PanNENs regardless of the hormone-related symptoms of the patients. Inhibitory effect of PgR on tumor cells might be associated with the favourable clinical outcome of insulinoma patients.
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Affiliation(s)
- Tomoyoshi Tachibana
- Department of Pathology, Tohoku University Graduate School of Medicine, Miyagi, Japan; Department of Surgery, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Atsuko Kasajima
- Department of Pathology, Tohoku University Graduate School of Medicine, Miyagi, Japan; Technical University Munich, School of Medicine, Klinikum rechts der Isar, Department of Pathology, Munich, Germany; Member of the German Cancer Consortium (DKTK), Germany.
| | - Takeshi Aoki
- Department of Surgery, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Tomoaki Tabata
- Department of Pathology, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Keely McNamara
- Department of Pathology, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Samaneh Yazdani
- Department of Pathology, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Sato Satoko
- Department of Pathology, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Fumiyoshi Fujishima
- Department of Pathology, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Fuyuhiko Motoi
- Department of Surgery, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Michiaki Unno
- Department of Surgery, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Hironobu Sasano
- Department of Pathology, Tohoku University Graduate School of Medicine, Miyagi, Japan
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6
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Kondakova IV, Shashova EE, Sidenko EA, Astakhova TM, Zakharova LA, Sharova NP. Estrogen Receptors and Ubiquitin Proteasome System: Mutual Regulation. Biomolecules 2020; 10:biom10040500. [PMID: 32224970 PMCID: PMC7226411 DOI: 10.3390/biom10040500] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 03/21/2020] [Accepted: 03/25/2020] [Indexed: 12/11/2022] Open
Abstract
This review provides information on the structure of estrogen receptors (ERs), their localization and functions in mammalian cells. Additionally, the structure of proteasomes and mechanisms of protein ubiquitination and cleavage are described. According to the modern concept, the ubiquitin proteasome system (UPS) is involved in the regulation of the activity of ERs in several ways. First, UPS performs the ubiquitination of ERs with a change in their functional activity. Second, UPS degrades ERs and their transcriptional regulators. Third, UPS affects the expression of ER genes. In addition, the opportunity of the regulation of proteasome functioning by ERs—in particular, the expression of immune proteasomes—is discussed. Understanding the complex mechanisms underlying the regulation of ERs and proteasomes has great prospects for the development of new therapeutic agents that can make a significant contribution to the treatment of diseases associated with the impaired function of these biomolecules.
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Affiliation(s)
- Irina V. Kondakova
- Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, 5 Kooperativny Street, 634009 Tomsk, Russia; (I.V.K.); (E.E.S.); (E.A.S.)
| | - Elena E. Shashova
- Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, 5 Kooperativny Street, 634009 Tomsk, Russia; (I.V.K.); (E.E.S.); (E.A.S.)
| | - Evgenia A. Sidenko
- Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, 5 Kooperativny Street, 634009 Tomsk, Russia; (I.V.K.); (E.E.S.); (E.A.S.)
| | - Tatiana M. Astakhova
- Koltzov Institute of Developmental Biology, Russian Academy of Sciences, 26 Vavilov Street, 119334 Moscow, Russia; (T.M.A.); (L.A.Z.)
| | - Liudmila A. Zakharova
- Koltzov Institute of Developmental Biology, Russian Academy of Sciences, 26 Vavilov Street, 119334 Moscow, Russia; (T.M.A.); (L.A.Z.)
| | - Natalia P. Sharova
- Koltzov Institute of Developmental Biology, Russian Academy of Sciences, 26 Vavilov Street, 119334 Moscow, Russia; (T.M.A.); (L.A.Z.)
- Correspondence: ; Tel.: +7-499-135-7674; Fax: +7-499-135-3322
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7
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Tecalco-Cruz AC, Ramírez-Jarquín JO. Polyubiquitination inhibition of estrogen receptor alpha and its implications in breast cancer. World J Clin Oncol 2018; 9:60-70. [PMID: 30148069 PMCID: PMC6107474 DOI: 10.5306/wjco.v9.i4.60] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 06/22/2018] [Accepted: 06/28/2018] [Indexed: 02/06/2023] Open
Abstract
Estrogen receptor alpha (ERα) is detected in more than 70% of the cases of breast cancer. Nuclear activity of ERα, a transcriptional regulator, is linked to the development of mammary tumors, whereas the extranuclear activity of ERα is related to endocrine therapy resistance. ERα polyubiquitination is induced by the estradiol hormone, and also by selective estrogen receptor degraders, resulting in ERα degradation via the ubiquitin proteasome system. Moreover, polyubiquitination is related to the ERα transcription cycle, and some E3-ubiquitin ligases also function as coactivators for ERα. Several studies have demonstrated that ERα polyubiquitination is inhibited by multiple mechanisms that include posttranslational modifications, interactions with coregulators, and formation of specific protein complexes with ERα. These events are responsible for an increase in ERα protein levels and deregulation of its signaling in breast cancers. Thus, ERα polyubiquitination inhibition may be a key factor in the progression of breast cancer and resistance to endocrine therapy.
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Affiliation(s)
- Angeles C Tecalco-Cruz
- Programa de Investigación de Cáncer de Mama (PICM), Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, México 04510, México
| | - Josué O Ramírez-Jarquín
- Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, México 04510, México
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8
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Kurozumi S, Matsumoto H, Inoue K, Tozuka K, Hayashi Y, Kurosumi M, Oyama T, Fujii T, Horiguchi J, Kuwano H. Impact of combining the progesterone receptor and preoperative endocrine prognostic index (PEPI) as a prognostic factor after neoadjuvant endocrine therapy using aromatase inhibitors in postmenopausal ER positive and HER2 negative breast cancer. PLoS One 2018; 13:e0201846. [PMID: 30080878 PMCID: PMC6078304 DOI: 10.1371/journal.pone.0201846] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 07/22/2018] [Indexed: 01/03/2023] Open
Abstract
The preoperative endocrine prognostic index (PEPI) predicts survival after neoadjuvant endocrine therapy (NAE) using aromatase inhibitors (AIs) for women with postmenopausal estrogen receptor (ER)-positive breast cancer irrespective of the human epidermal growth factor receptor 2 (HER2) status. Although the progesterone receptor (PgR) is also a prognostic factor for ER-positive breast cancer, the PgR status was not considered a prognostic factor in the original PEPI scoring system. In this study, we investigated the utility of a modified PEPI including the PgR status (PEPI-P) as a prognostic factor after NAE for postmenopausal patients with ER-positive and HER2-negative breast cancer. We enrolled 107 patients with invasive ER-positive and HER2-negative breast cancer treated with exemestane for ≥4 months as NAE. We initially assessed PEPI and compared survival between the groups. Additionally, we obtained an effective cutoff for PgR through survival analysis. Then, we assessed the survival significance of PEPI-P. A PgR staining rate of 50% was the most significant cutoff for predicting recurrence-free survival (RFS) and cancer-specific survival (CSS). PEPI was a significant prognostic factor; moreover, PEPI-P was the most significant prognostic indicator for RFS and CSS. PEPI-P is a potent prognostic indicator of survival after NAE using AIs for postmenopausal patients with ER-positive and HER2-negative breast cancer. This modified PEPI may be useful for therapeutic decision-making regarding postmenopausal ER-positive and HER2-negative breast cancer after NAE.
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Affiliation(s)
- Sasagu Kurozumi
- Division of Breast Surgery, Saitama Cancer Center, Saitama, Japan
- Department of General Surgical Science, Gunma University Graduate School of Medicine, Gunma, Japan
- * E-mail:
| | | | - Kenichi Inoue
- Division of Breast Oncology, Saitama Cancer Center, Saitama, Japan
| | - Katsunori Tozuka
- Division of Breast Surgery, Saitama Cancer Center, Saitama, Japan
| | - Yuji Hayashi
- Division of Breast Surgery, Saitama Cancer Center, Saitama, Japan
| | | | - Tetsunari Oyama
- Department of Diagnostic Pathology, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Takaaki Fujii
- Department of General Surgical Science, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Jun Horiguchi
- Department of Breast Surgery, International University of Health and Welfare, Chiba, Japan
| | - Hiroyuki Kuwano
- Department of General Surgical Science, Gunma University Graduate School of Medicine, Gunma, Japan
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9
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Takaku M, Grimm SA, Roberts JD, Chrysovergis K, Bennett BD, Myers P, Perera L, Tucker CJ, Perou CM, Wade PA. GATA3 zinc finger 2 mutations reprogram the breast cancer transcriptional network. Nat Commun 2018. [PMID: 29535312 PMCID: PMC5849768 DOI: 10.1038/s41467-018-03478-4] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
GATA3 is frequently mutated in breast cancer; these mutations are widely presumed to be loss-of function despite a dearth of information regarding their effect on disease course or their mechanistic impact on the breast cancer transcriptional network. Here, we address molecular and clinical features associated with GATA3 mutations. A novel classification scheme defines distinct clinical features for patients bearing breast tumors with mutations in the second GATA3 zinc-finger (ZnFn2). An engineered ZnFn2 mutant cell line by CRISPR–Cas9 reveals that mutation of one allele of the GATA3 second zinc finger (ZnFn2) leads to loss of binding and decreased expression at a subset of genes, including Progesterone Receptor. At other loci, associated with epithelial to mesenchymal transition, gain of binding correlates with increased gene expression. These results demonstrate that not all GATA3 mutations are equivalent and that ZnFn2 mutations impact breast cancer through gain and loss-of function. In breast cancer GATA3 is known to be frequently mutated, but the function of these mutations is unclear. Here, the authors utilise CRISPR-Cas9 to model frame-shift mutations in zinc finger 2 of GATA3, highlighting that GATA3 mutation can have gain- or loss-of function effects in breast cancer.
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Affiliation(s)
- Motoki Takaku
- Epigenetics and Stem Cell Biology Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, Durham, NC, 27709, USA
| | - Sara A Grimm
- Integrative Bioinformatics, National Institute of Environmental Health Sciences, Research Triangle Park, Durham, NC, 27709, USA
| | - John D Roberts
- Epigenetics and Stem Cell Biology Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, Durham, NC, 27709, USA
| | - Kaliopi Chrysovergis
- Epigenetics and Stem Cell Biology Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, Durham, NC, 27709, USA
| | - Brian D Bennett
- Integrative Bioinformatics, National Institute of Environmental Health Sciences, Research Triangle Park, Durham, NC, 27709, USA
| | - Page Myers
- Comparative Medicine Branch, National Institute of Environmental Health Sciences, Research Triangle Park, 27709, Durham, NC, USA
| | - Lalith Perera
- Laboratory of Genome Integrity and Structural Biology, National Institute of Environmental Health Sciences, Research Triangle Park, Durham, NC, 27709, USA
| | - Charles J Tucker
- Fluorescence Microscopy and Imaging Center, National Institute of Environmental Health Sciences, Research Triangle Park, Durham, NC, 27709, USA
| | - Charles M Perou
- Lineberger Comprehensive Cancer Center and Department of Genetics, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Paul A Wade
- Epigenetics and Stem Cell Biology Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, Durham, NC, 27709, USA.
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10
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Azeez JM, Vini R, Remadevi V, Surendran A, Jaleel A, Santhosh Kumar TR, Sreeja S. VDAC1 and SERCA3 Mediate Progesterone-Triggered Ca2+ Signaling in Breast Cancer Cells. J Proteome Res 2017; 17:698-709. [DOI: 10.1021/acs.jproteome.7b00754] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Juberiya M. Azeez
- Cancer
Research Program and ‡Proteomics Core Facility, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala 695014, India
| | - Ravindran Vini
- Cancer
Research Program and ‡Proteomics Core Facility, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala 695014, India
| | - Viji Remadevi
- Cancer
Research Program and ‡Proteomics Core Facility, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala 695014, India
| | - Arun Surendran
- Cancer
Research Program and ‡Proteomics Core Facility, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala 695014, India
| | - Abdul Jaleel
- Cancer
Research Program and ‡Proteomics Core Facility, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala 695014, India
| | - T. R. Santhosh Kumar
- Cancer
Research Program and ‡Proteomics Core Facility, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala 695014, India
| | - S. Sreeja
- Cancer
Research Program and ‡Proteomics Core Facility, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala 695014, India
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11
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Salem K, Kumar M, Powers GL, Jeffery JJ, Yan Y, Mahajan AM, Fowler AM. 18F-16α-17β-Fluoroestradiol Binding Specificity in Estrogen Receptor-Positive Breast Cancer. Radiology 2017; 286:856-864. [PMID: 28956736 DOI: 10.1148/radiol.2017162956] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Purpose To determine the binding specificity of 18F-16α-17β-fluoroestradiol (FES) in estrogen receptor (ER) α-positive breast cancer cells and tumor xenografts. Materials and Methods Protocols were approved by the office of biologic safety and institutional animal care and use committee. By using ER-negative MDA-MB-231 breast cancer cells, clonal lines were created that expressed either wild-type (WT; 231 WT ER) or G521R mutant ERα (231 G521R ER), which is defective in estradiol binding. ERα protein levels, subcellular localization, and transcriptional function were confirmed. FES binding was measured by using an in vitro cell uptake assay. In vivo FES uptake was measured in tumor xenografts by using small-animal positron emission tomographic/computed tomographic imaging of 24 mice (17 WT ER tumors, nine mutant G521R ER tumors, eight MDA-MB-231 tumors, and four MCF-7 ER-positive tumors). Statistical significance was determined by using Mann-Whitney (Wilcoxon rank sum) test. Results ERα transcriptional function was abolished in the mutated 231 G521R ER cells despite appropriate receptor protein expression and nuclear localization. In vitro FES binding in the 231 G521R ER cells was reduced to that observed in the parental cells. Similarly, there was no significant FES uptake in the 231 G521R ER xenografts (percent injected dose [ID] per gram, 0.49 ± 0.042), which was similar to the negative control MDA-MB-231 xenografts (percent ID per gram, 0.42 ± 0.051; P = .20) and nonspecific muscle uptake (percent ID per gram, 0.41 ± 0.0095; P = .06). Conclusion This study showed that FES retention in ER-positive breast cancer is strictly dependent on an intact receptor ligand-binding pocket and that FES binds to ERα with high specificity. These results support the utility of FES imaging for assessing tumor heterogeneity by localizing immunohistochemically ER-positive metastases that lack receptor-binding functionality. © RSNA, 2017 Online supplemental material is available for this article.
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Affiliation(s)
- Kelley Salem
- From the Department of Radiology (K.S., M.K., G.L.P., Y.Y., A.M.F.), Carbone Cancer Center (J.J.J., A.M.F.), Department of Medical Physics (Y.Y., A.M.F.), and Department of Pathology and Laboratory Medicine (A.M.M.), University of Wisconsin School of Medicine and Public Health, 600 Highland Ave, Madison, WI 53792
| | - Manoj Kumar
- From the Department of Radiology (K.S., M.K., G.L.P., Y.Y., A.M.F.), Carbone Cancer Center (J.J.J., A.M.F.), Department of Medical Physics (Y.Y., A.M.F.), and Department of Pathology and Laboratory Medicine (A.M.M.), University of Wisconsin School of Medicine and Public Health, 600 Highland Ave, Madison, WI 53792
| | - Ginny L Powers
- From the Department of Radiology (K.S., M.K., G.L.P., Y.Y., A.M.F.), Carbone Cancer Center (J.J.J., A.M.F.), Department of Medical Physics (Y.Y., A.M.F.), and Department of Pathology and Laboratory Medicine (A.M.M.), University of Wisconsin School of Medicine and Public Health, 600 Highland Ave, Madison, WI 53792
| | - Justin J Jeffery
- From the Department of Radiology (K.S., M.K., G.L.P., Y.Y., A.M.F.), Carbone Cancer Center (J.J.J., A.M.F.), Department of Medical Physics (Y.Y., A.M.F.), and Department of Pathology and Laboratory Medicine (A.M.M.), University of Wisconsin School of Medicine and Public Health, 600 Highland Ave, Madison, WI 53792
| | - Yongjun Yan
- From the Department of Radiology (K.S., M.K., G.L.P., Y.Y., A.M.F.), Carbone Cancer Center (J.J.J., A.M.F.), Department of Medical Physics (Y.Y., A.M.F.), and Department of Pathology and Laboratory Medicine (A.M.M.), University of Wisconsin School of Medicine and Public Health, 600 Highland Ave, Madison, WI 53792
| | - Aparna M Mahajan
- From the Department of Radiology (K.S., M.K., G.L.P., Y.Y., A.M.F.), Carbone Cancer Center (J.J.J., A.M.F.), Department of Medical Physics (Y.Y., A.M.F.), and Department of Pathology and Laboratory Medicine (A.M.M.), University of Wisconsin School of Medicine and Public Health, 600 Highland Ave, Madison, WI 53792
| | - Amy M Fowler
- From the Department of Radiology (K.S., M.K., G.L.P., Y.Y., A.M.F.), Carbone Cancer Center (J.J.J., A.M.F.), Department of Medical Physics (Y.Y., A.M.F.), and Department of Pathology and Laboratory Medicine (A.M.M.), University of Wisconsin School of Medicine and Public Health, 600 Highland Ave, Madison, WI 53792
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