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Cui H, Li H, Liu J, Zhao P, Liu Y, Zhong R, Li R, Cheng Y. The predictive value of E2F7 in immunotherapy efficacy for lung adenocarcinoma: An observational study. Medicine (Baltimore) 2024; 103:e38574. [PMID: 38905387 PMCID: PMC11191985 DOI: 10.1097/md.0000000000038574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Accepted: 05/23/2024] [Indexed: 06/23/2024] Open
Abstract
Lung adenocarcinoma (LUAD) is the most common pathological type of lung cancer. In recent years, immunotherapy has greatly changed the treatment pattern of advanced LUAD. However, only a small proportion of LUAD patients benefitted from immune checkpoint inhibitor therapy. There is an urgent need to develop a biomarker to predict immune therapy response. E2F7 has been shown to be closely related to immune cell infiltration and immune checkpoint expression in tumors. However, it is unclear whether the E2F7 expression is related to the immunotherapy efficacy in LUAD. Therefore, we conducted this study to investigate the clinical characteristics, function, and immunotherapy responsiveness of E2F7 expression, and to explore the potential of E2F7 as an immunotherapy response biomarker in LUAD. We analyzed the clinical characteristics and biological function of E2F7 expression based on data from the Cancer Genome Atlas and Gene Expression Omnibus database. In addition, we used single-cell sequencing data to analyze the immune regulatory effects of E2F7 in LUAD. Furthermore, we analyzed the immunotherapy response prediction ability of E2F7 expression based on the immunotherapy database. Compared to normal lung tissue, E2F7 was specifically overexpressed in LUAD, and its expression was associated with higher malignancy and poor efficacy. E2F7 high expression was an independent risk factor affecting the prognosis of LUAD. E2F7 was enriched in cell division and cell cycle functions. In addition, the expressions of immune checkpoints were correlated with the E2F7 expression. E2F7 was highly expressed in myeloid cells, and E2F7 highly expressed myeloid cells were associated with immune and inflammatory responses. Moreover, the expression level of E2F7 can effectively distinguish different immune therapy responses in LUAD patients. E2F7 was upregulated in LUAD, and high expression of E2F7 was associated with higher malignancy and poor efficacy. E2F7 high expression was an independent risk factor affecting the prognosis of LUAD. Moreover, E2F7 may exert its immunosuppressive effect by affecting the function of myeloid cells. These results indicated the potential role of E2F7 as a biomarker for predicting LUAD immunotherapy responses.
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Affiliation(s)
- Heran Cui
- Biobank, Jilin Cancer Hospital, Changchun, China
| | - Hui Li
- Biobank, Jilin Cancer Hospital, Changchun, China
- Translational Oncology Research Lab, Jilin Province and Jilin Provincial Key Laboratory of Molecular Diagnostics for Lung Cancer, Jilin Cancer Hospital, Changchun, China
| | - Jingjing Liu
- Biobank, Jilin Cancer Hospital, Changchun, China
- Department of Thoracic Oncology, Jilin Cancer Hospital, Changchun, China
| | - Peiyan Zhao
- Translational Oncology Research Lab, Jilin Province and Jilin Provincial Key Laboratory of Molecular Diagnostics for Lung Cancer, Jilin Cancer Hospital, Changchun, China
| | - Yan Liu
- Translational Oncology Research Lab, Jilin Province and Jilin Provincial Key Laboratory of Molecular Diagnostics for Lung Cancer, Jilin Cancer Hospital, Changchun, China
| | - Rui Zhong
- Translational Oncology Research Lab, Jilin Province and Jilin Provincial Key Laboratory of Molecular Diagnostics for Lung Cancer, Jilin Cancer Hospital, Changchun, China
| | - Rixin Li
- Biobank, Jilin Cancer Hospital, Changchun, China
| | - Ying Cheng
- Translational Oncology Research Lab, Jilin Province and Jilin Provincial Key Laboratory of Molecular Diagnostics for Lung Cancer, Jilin Cancer Hospital, Changchun, China
- Department of Thoracic Oncology, Jilin Cancer Hospital, Changchun, China
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Chen Q, Guo P, Hong Y, Mo P, Yu C. The multifaceted therapeutic value of targeting steroid receptor coactivator-1 in tumorigenesis. Cell Biosci 2024; 14:41. [PMID: 38553750 PMCID: PMC10979636 DOI: 10.1186/s13578-024-01222-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 03/22/2024] [Indexed: 04/02/2024] Open
Abstract
Steroid receptor coactivator-1 (SRC-1, also known as NCOA1) frequently functions as a transcriptional coactivator by directly binding to transcription factors and recruiting to the target gene promoters to promote gene transcription by increasing chromatin accessibility and promoting the formation of transcriptional complexes. In recent decades, various biological and pathological functions of SRC-1 have been reported, especially in the context of tumorigenesis. SRC-1 is a facilitator of the progression of multiple cancers, including breast cancer, prostate cancer, gastrointestinal cancer, neurological cancer, and female genital system cancer. The emerging multiorgan oncogenic role of SRC-1 is still being studied and may not be limited to only steroid hormone-producing tissues. Growing evidence suggests that SRC-1 promotes target gene expression by directly binding to transcription factors, which may constitute a novel coactivation pattern independent of AR or ER. In addition, the antitumour effect of pharmacological inhibition of SRC-1 with agents including various small molecules or naturally active compounds has been reported, but their practical application in clinical cancer therapy is very limited. For this review, we gathered typical evidence on the oncogenic role of SRC-1, highlighted its major collaborators and regulatory genes, and mapped the potential mechanisms by which SRC-1 promotes primary tumour progression.
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Affiliation(s)
- Qiang Chen
- Zhejiang Key Laboratory of Pathophysiology, Department of Biochemistry and Molecular Biology, Health Science Center, Ningbo University, Ningbo, Zhejiang, 315211, China.
- Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Affiliated First Hospital of Ningbo University, Ningbo, Zhejiang, 315010, China.
| | - Peng Guo
- Department of Cell Biotechnology Laboratory, Tianjin Cancer Hospital Airport Hospital, Tianjin, 300308, China
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361104, China
| | - Yilin Hong
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361104, China
| | - Pingli Mo
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361104, China
| | - Chundong Yu
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361104, China.
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Meligova AK, Siakouli D, Stasinopoulou S, Xenopoulou DS, Zoumpouli M, Ganou V, Gkotsi EF, Chatziioannou A, Papadodima O, Pilalis E, Alexis MN, Mitsiou DJ. ERβ1 Sensitizes and ERβ2 Desensitizes ERα-Positive Breast Cancer Cells to the Inhibitory Effects of Tamoxifen, Fulvestrant and Their Combination with All-Trans Retinoic Acid. Int J Mol Sci 2023; 24:ijms24043747. [PMID: 36835157 PMCID: PMC9959521 DOI: 10.3390/ijms24043747] [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: 12/28/2022] [Revised: 02/07/2023] [Accepted: 02/10/2023] [Indexed: 02/16/2023] Open
Abstract
Adjuvant endocrine therapy (AET) is the treatment of choice for early-stage estrogen receptor alpha (ERα)-positive breast cancer (BC). However, almost 40% of tamoxifen-treated cases display no response or a partial response to AET, thus increasing the need for new treatment options and strong predictors of the therapeutic response of patients at high risk of relapse. In addition to ERα, BC research has focused on ERβ1 and ERβ2 (isoforms of ERβ), the second ER isotype. At present, the impact of ERβ isoforms on ERα-positive BC prognosis and treatment remains elusive. In the present study, we established clones of MCF7 cells constitutively expressing human ERβ1 or ERβ2 and investigated their role in the response of MCF7 cells to antiestrogens [4-hydroxytamoxifen (OHΤ) and fulvestrant (ICI182,780)] and retinoids [all-trans retinoic acid (ATRA)]. We show that, compared to MCF7 cells, MCF7-ERβ1 and MCF7-ERβ2 cells were sensitized and desensitized, respectively, to the antiproliferative effect of the antiestrogens, ATRA and their combination and to the cytocidal effect of the combination of OHT and ATRA. Analysis of the global transcriptional changes upon OHT-ATRA combinatorial treatment revealed uniquely regulated genes associated with anticancer effects in MCF7-ERβ1 cells and cancer-promoting effects in MCF7-ERβ2 cells. Our data are favorable to ERβ1 being a marker of responsiveness and ERβ2 being a marker of resistance of MCF7 cells to antiestrogens alone and in combination with ATRA.
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Affiliation(s)
- Aggeliki K. Meligova
- Institute of Chemical Biology, National Hellenic Research Foundation, 11635 Athens, Greece
| | - Dimitra Siakouli
- Institute of Chemical Biology, National Hellenic Research Foundation, 11635 Athens, Greece
| | - Sotiria Stasinopoulou
- Institute of Chemical Biology, National Hellenic Research Foundation, 11635 Athens, Greece
| | - Despoina S. Xenopoulou
- Institute of Chemical Biology, National Hellenic Research Foundation, 11635 Athens, Greece
| | - Maria Zoumpouli
- Institute of Chemical Biology, National Hellenic Research Foundation, 11635 Athens, Greece
| | - Vassiliki Ganou
- Institute of Chemical Biology, National Hellenic Research Foundation, 11635 Athens, Greece
| | - Eleni-Fani Gkotsi
- Institute of Chemical Biology, National Hellenic Research Foundation, 11635 Athens, Greece
| | - Aristotelis Chatziioannou
- Center of Systems Biology, Biomedical Research Foundation of the Academy of Athens, 11527 Athens, Greece
| | - Olga Papadodima
- Institute of Chemical Biology, National Hellenic Research Foundation, 11635 Athens, Greece
| | | | - Michael N. Alexis
- Institute of Chemical Biology, National Hellenic Research Foundation, 11635 Athens, Greece
- Correspondence: (M.N.A.); (D.J.M.)
| | - Dimitra J. Mitsiou
- Institute of Chemical Biology, National Hellenic Research Foundation, 11635 Athens, Greece
- Correspondence: (M.N.A.); (D.J.M.)
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Zhang Y, Lyu L, Wang W, Zhang L. High expression of E2F transcription factors 7: An independent predictor of poor prognosis in patients with lung adenocarcinoma. Medicine (Baltimore) 2022; 101:e29253. [PMID: 35984189 PMCID: PMC9388032 DOI: 10.1097/md.0000000000029253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Adenocarcinoma is the most common pathological type of lung cancer. The E2F7 transcription factor has been confirmed to be related to the occurrence and development of a variety of solid tumors, but the relationship with the prognosis of lung cancer is still unclear. Therefore, we conducted this study to explore the prognostic value of E2F7 for lung adenocarcinoma (LUAD) patients. In this study, we analyzed samples from the Cancer Genome Atlas (TCGA) to study the correlation between the expression of E2F7 and clinical features, the difference in expression between tumors and normal tissues, the prognostic and diagnostic value, and Enrichment analysis of related genes. All statistical analysis uses R statistical software (version 3.6.3). The result shows that the expression level of E2F7 in LUAD was significantly higher than that of normal lung tissue (P = 1e-34). High expression of E2F7 was significantly correlated with gender (P = .034), pathologic stage (P = .046) and M stage (P = .025). Multivariate Cox analysis confirmed that E2F7 is an independent risk factor for OS in LUAD patients (P = .027). Genes related to cell cycle checkpoints, DNA damage telomere stress-induced senescence, DNA methylation, chromosome maintenance and mitotic prophase showed differential enrichment in the E2F7 high expression group. In short, high expression of E2F7 is an independent risk factor for OS in LUAD patients and has a high diagnostic value.
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Affiliation(s)
- Yu Zhang
- Xinjiang Medical University, Department of thoracic surgery, Feicheng Hospital Affiliated to Shandong First Medical University, China
| | - Lan Lyu
- Department of Plastic Surgery, Feicheng Hospital Affiliated to Shandong First Medical University, China
| | - Wei Wang
- Department of Expert's Outpatient, Feicheng Hospital Affiliated to Shandong First Medical University, China
| | - Liwei Zhang
- Xinjiang Medical University, China
- *Correspondence: Liwei Zhang, Xinjiang Medical University, Urumqi, Xinjiang Uygur Autonomous Region, China, 830054, China (e-mail: )
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Jafari H, Hussain S, Campbell MJ. Nuclear Receptor Coregulators in Hormone-Dependent Cancers. Cancers (Basel) 2022; 14:2402. [PMID: 35626007 PMCID: PMC9139824 DOI: 10.3390/cancers14102402] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 05/09/2022] [Indexed: 12/10/2022] Open
Abstract
Nuclear receptors (NRs) function collectively as a transcriptional signaling network that mediates gene regulatory actions to either maintain cellular homeostasis in response to hormonal, dietary and other environmental factors, or act as orphan receptors with no known ligand. NR complexes are large and interact with multiple protein partners, collectively termed coregulators. Coregulators are essential for regulating NR activity and can dictate whether a target gene is activated or repressed by a variety of mechanisms including the regulation of chromatin accessibility. Altered expression of coregulators contributes to a variety of hormone-dependent cancers including breast and prostate cancers. Therefore, understanding the mechanisms by which coregulators interact with and modulate the activity of NRs provides opportunities to develop better prognostic and diagnostic approaches, as well as novel therapeutic targets. This review aims to gather and summarize recent studies, techniques and bioinformatics methods used to identify distorted NR coregulator interactions that contribute as cancer drivers in hormone-dependent cancers.
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Affiliation(s)
- Hedieh Jafari
- Department of Molecular Genetics, The Ohio State University, Columbus, OH 43210, USA;
- Department of Pharmaceutics and Pharmaceutical Chemistry, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA;
| | - Shahid Hussain
- Department of Pharmaceutics and Pharmaceutical Chemistry, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA;
| | - Moray J. Campbell
- Department of Pharmaceutics and Pharmaceutical Chemistry, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA;
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Kosemani SO, Bakare AA, Adaramoye OA. Fraction from Calliandra portoricensis reduces 7, 12 dimethylbenz(a)anthracene-induced mammary tumors in Wistar rats. AVICENNA JOURNAL OF PHYTOMEDICINE 2022; 12:131-144. [PMID: 35614889 PMCID: PMC9090318 DOI: 10.22038/ajp.2021.18641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 06/14/2021] [Accepted: 06/14/2021] [Indexed: 12/02/2022]
Abstract
OBJECTIVE Calliandra portoricensis (CP) is used in Nigeria for the treatment of breast diseases. We investigated the effects of fraction from CP on 7, 12-dimethylbenz(a)anthracene (DMBA)-induced mammary gland tumors. MATERIALS AND METHODS Female Wistar rats (40) were allotted into five equal groups. Group 1 served as control, group 2 received DMBA (50 mg/kg), groups 3 and 4 received DMBA and were treated with CP at doses of 50 and 100 mg/kg respectively, and the group 5 received DMBA and vincristine (0.5 mg/kg). DMBA was injected intraperitoneally once while vincristine and CP were given twice and thrice per week, respectively. RESULTS Administration ofDMBA caused a significant decrease in body weight gain by 52%. In addition, DMBA significantly increased organo-somatic weight of mammary gland by 4.0 folds. Also, DMBA significantly increased inflammatory and oxidative stress markers serum interleukin-1β (IL-1β), lipid peroxidation (LPO) and myeloperoxidase (MPO) by 27, 18 and 435%, respectively. Similarly, mammary NO (nitric oxide) and LPO were increased by 468 and 21%, respectively. In contrast, DMBA decreased the levels of apoptotic markers BAX, caspases 3 and 9 by 20, 15 and 18%, and mammary superoxide dismutase (SOD), catalase (CAT) and glutathione-s-peroxidase (GPx) by 45, 51 and 68%, respectively. Histology revealed gland with malignant epithelial cells and high nucleo-cytoplasm in DMBA-administered rats. Treatment with CP 100 mg/kg decreased LPO, MPO, IL-1β and NO by 28, 35, 78 and 85%, respectively, and ameliorated DMBA-induced cyto-architectural anomalies. CONCLUSION Fraction of CP protects mammary gland from DMBA insults via antioxidative and anti-inflammatory mechanisms.
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Affiliation(s)
- Samson O. Kosemani
- Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Aminat A. Bakare
- Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Oluwatosin A. Adaramoye
- Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria,Department of Biochemistry, BOWEN University, Iwo, Nigeria,Corresponding Author: Tel: +234-8163047157, Fax: +234-28103043,
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Nagy Z, Jeselsohn R. ESR1 fusions and therapeutic resistance in metastatic breast cancer. Front Oncol 2022; 12:1037531. [PMID: 36686845 PMCID: PMC9848494 DOI: 10.3389/fonc.2022.1037531] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 11/22/2022] [Indexed: 01/06/2023] Open
Abstract
Breast cancer is the most frequent female malignant tumor, and the leading cause of cancer death in women worldwide. The most common subtype of breast cancer is hormone receptor positive that expresses the estrogen receptor (ER). Targeting ER with endocrine therapy (ET) is the current standard of care for ER positive (ER+) breast cancer, reducing mortality by up to 40% in early- stage disease. However, resistance to ET represents a major clinical challenge for ER+ breast cancer patients leading to disease recurrence or progression of metastatic disease. Salient drivers of ET resistance are missense mutations in the ER gene (ESR1) leading to constitutive transcriptional activity and reduced ET sensitivity. These mutations are particularly prominent and deleterious in metastatic breast cancer (MBC). In addition to activating ESR1 point mutations, emerging evidence imposes that chromosomal translocation involving the ESR1 gene can also drive ET resistance through the formation of chimeric transcription factors with constitutive transcriptional activity. Although these ESR1 gene fusions are relatively rare, they are enriched in ET resistant metastatic disease. This review discusses the characteristics of ER fusion proteins and their association with clinical outcomes in more aggressive and metastatic breast cancer. The structure and classification of ER fusion proteins based on function and clinical significance are also addressed. Finally, this review summarizes the metastatic phenotypes exhibited by the ER fusion proteins and their role in intrinsic ET resistance.
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Affiliation(s)
- Zsuzsanna Nagy
- Center for Functional Cancer Epigenetics, Dana Farber Cancer Institute, Harvard Medical School, Boston, MA, United States
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, United States
- Department of Medicine, Harvard Medical School, Boston, MA, United States
- *Correspondence: Rinath Jeselsohn, ; Zsuzsanna Nagy,
| | - Rinath Jeselsohn
- Center for Functional Cancer Epigenetics, Dana Farber Cancer Institute, Harvard Medical School, Boston, MA, United States
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, United States
- Department of Medicine, Harvard Medical School, Boston, MA, United States
- Susan F. Smith Center for Women’s Cancers, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, United States
- *Correspondence: Rinath Jeselsohn, ; Zsuzsanna Nagy,
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Saatci O, Huynh-Dam KT, Sahin O. Endocrine resistance in breast cancer: from molecular mechanisms to therapeutic strategies. J Mol Med (Berl) 2021; 99:1691-1710. [PMID: 34623477 PMCID: PMC8611518 DOI: 10.1007/s00109-021-02136-5] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 08/20/2021] [Accepted: 09/06/2021] [Indexed: 12/31/2022]
Abstract
Estrogen receptor-positive (ER +) breast cancer accounts for approximately 75% of all breast cancers. Endocrine therapies, including selective ER modulators (SERMs), aromatase inhibitors (AIs), and selective ER down-regulators (SERDs) provide substantial clinical benefit by reducing the risk of disease recurrence and mortality. However, resistance to endocrine therapies represents a major challenge, limiting the success of ER + breast cancer treatment. Mechanisms of endocrine resistance involve alterations in ER signaling via modulation of ER (e.g., ER downregulation, ESR1 mutations or fusions); alterations in ER coactivators/corepressors, transcription factors (TFs), nuclear receptors and epigenetic modulators; regulation of signaling pathways; modulation of cell cycle regulators; stress signaling; and alterations in tumor microenvironment, nutrient stress, and metabolic regulation. Current therapeutic strategies to improve outcome of endocrine-resistant patients in clinics include inhibitors against mechanistic target of rapamycin (mTOR), cyclin-dependent kinase (CDK) 4/6, and the phosphoinositide 3-kinase (PI3K) subunit, p110α. Preclinical studies reveal novel therapeutic targets, some of which are currently tested in clinical trials as single agents or in combination with endocrine therapies, such as ER partial agonists, ER proteolysis targeting chimeras (PROTACs), next-generation SERDs, AKT inhibitors, epidermal growth factor receptor 1 and 2 (EGFR/HER2) dual inhibitors, HER2 targeting antibody-drug conjugates (ADCs) and histone deacetylase (HDAC) inhibitors. In this review, we summarize the established and emerging mechanisms of endocrine resistance, alterations during metastatic recurrence, and discuss the approved therapies and ongoing clinical trials testing the combination of novel targeted therapies with endocrine therapy in endocrine-resistant ER + breast cancer patients.
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Affiliation(s)
- Ozge Saatci
- Department of Drug Discovery and Biomedical Sciences, University of South Carolina, 715, Sumter Street, CLS609D, Columbia, SC, 29208, USA
| | - Kim-Tuyen Huynh-Dam
- Department of Drug Discovery and Biomedical Sciences, University of South Carolina, 715, Sumter Street, CLS609D, Columbia, SC, 29208, USA
| | - Ozgur Sahin
- Department of Drug Discovery and Biomedical Sciences, University of South Carolina, 715, Sumter Street, CLS609D, Columbia, SC, 29208, USA.
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Zhang J, Yang Y, Liu H, Hu H. Src-1 and SP2 promote the proliferation and epithelial-mesenchymal transition of nasopharyngeal carcinoma. Open Med (Wars) 2021; 16:1061-1069. [PMID: 34307888 PMCID: PMC8284335 DOI: 10.1515/med-2021-0248] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 01/09/2021] [Accepted: 02/08/2021] [Indexed: 12/14/2022] Open
Abstract
Nasopharyngeal carcinoma (NPC) is characterized by high morbidity and morality, especially in Southern China. Transcription factors intensively participate in the initiation and development of NPC. This study aimed to investigate the roles of Src-1 in NPC. mRNA level was determined by qRT-PCR. Western blot was carried out for the protein level. CCK-8 assay was performed to determine cell viability, colony formation for NPC cell proliferation, and transwell for cell migration and invasion ability. The results showed Steroid receptor coactivator 1 (Src-1) was overexpressed in SNE-2 and 6-10B. The expression of Src-1 and SP2 was in positive correlation. Overexpression of Src-1 promoted the cell viability, colony formation, and epithelial-mesenchymal transition (EMT), manifested by the increase of migration and invasion ability, while knockdown of Src-1 exerted opposite effects. Additionally, knockdown or overexpression of SP2 reversed the effects of overexpressed or downregulated Src-1, which was reversed by the depletion of SP2. Moreover, Src-1 interacted with SP2 to regulate EMT-related genes such as E-cad, N-cad, Vimentin, and ZEB1, and proliferation- and apoptosis-related genes, such as bax, cytochrome c, and cleaved caspase3 and bcl-2. Thus, blocking the interaction between Src-1 and SP2 may be a therapeutic target for inhibiting the metastasis of NPC.
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Affiliation(s)
- Jingjing Zhang
- Ear, Nose, Throat Department, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518000, China
| | - Yuanyuan Yang
- Ear, Nose, Throat Department, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518000, China
| | - Hongyu Liu
- Ear, Nose, Throat Department, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518000, China
| | - Hongyi Hu
- Ear, Nose, Throat Department, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518000, China
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Choi SR, Wang HM, Shin MH, Lim HS. Hydrophobic Tagging-Mediated Degradation of Transcription Coactivator SRC-1. Int J Mol Sci 2021; 22:6407. [PMID: 34203850 PMCID: PMC8232704 DOI: 10.3390/ijms22126407] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 06/11/2021] [Accepted: 06/12/2021] [Indexed: 01/19/2023] Open
Abstract
Steroid receptor coactivator-1 (SRC-1) is a transcription coactivator playing a pivotal role in mediating a wide range of signaling pathways by interacting with related transcription factors and nuclear receptors. Aberrantly elevated SRC-1 activity is associated with cancer metastasis and progression, and therefore, suppression of SRC-1 is emerging as a promising therapeutic strategy. In this study, we developed a novel SRC-1 degrader for targeted degradation of cellular SRC-1. This molecule consists of a selective ligand for SRC-1 and a bulky hydrophobic group. Since the hydrophobic moiety on the protein surface could mimic a partially denatured hydrophobic region of a protein, SRC-1 could be recognized as an unfolded protein and experience the chaperone-mediated degradation in the cells through the ubiquitin-proteasome system (UPS). Our results demonstrate that a hydrophobic-tagged chimeric molecule is shown to significantly reduce cellular levels of SRC-1 and suppress cancer cell migration and invasion. Together, these results highlight that our SRC-1 degrader represents a novel class of therapeutic candidates for targeting cancer metastasis. Moreover, we believe that the hydrophobic tagging strategy would be widely applicable to develop peptide-based protein degraders with enhanced cellular activity.
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Affiliation(s)
- So Ra Choi
- Department of Chemistry and Division of Advanced Material Science, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea; (S.R.C.); (H.M.W.)
| | - Hee Myeong Wang
- Department of Chemistry and Division of Advanced Material Science, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea; (S.R.C.); (H.M.W.)
| | - Min Hyeon Shin
- Department of Chemistry and Division of Advanced Material Science, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea; (S.R.C.); (H.M.W.)
- POSTECH Biotech Center, Pohang 37673, Korea
| | - Hyun-Suk Lim
- Department of Chemistry and Division of Advanced Material Science, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea; (S.R.C.); (H.M.W.)
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11
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Belachew EB, Sewasew DT. Molecular Mechanisms of Endocrine Resistance in Estrogen-Positive Breast Cancer. Front Endocrinol (Lausanne) 2021; 12:599586. [PMID: 33841325 PMCID: PMC8030661 DOI: 10.3389/fendo.2021.599586] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 02/15/2021] [Indexed: 12/16/2022] Open
Abstract
The estrogen receptor is a vital receptor for therapeutic targets in estrogen receptor-positive breast cancer. The main strategy for the treatment of estrogen receptor-positive breast cancers is blocking the estrogen action on estrogen receptors by endocrine therapy but this can be restricted via endocrine resistance. Endocrine resistance occurs due to both de novo and acquired resistance. This review focuses on the mechanisms of the ligand-dependent and ligand-independent pathways and other coregulators, which are responsible for endocrine resistance. It concludes that combinatorial drugs that target different signaling pathways and coregulatory proteins together with endocrine therapy could be a novel therapeutic modality to stop endocrine resistance.
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Affiliation(s)
- Esmael Besufikad Belachew
- Biology, Mizan Tepi University, Addis Ababa, Ethiopia
- Microbial, Cellular and Molecular Biology Department, Addis Ababa University, Addis Ababa, Ethiopia
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O’Garro C, Igbineweka L, Ali Z, Mezei M, Mujtaba S. The Biological Significance of Targeting Acetylation-Mediated Gene Regulation for Designing New Mechanistic Tools and Potential Therapeutics. Biomolecules 2021; 11:biom11030455. [PMID: 33803759 PMCID: PMC8003229 DOI: 10.3390/biom11030455] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 03/15/2021] [Accepted: 03/16/2021] [Indexed: 01/13/2023] Open
Abstract
The molecular interplay between nucleosomal packaging and the chromatin landscape regulates the transcriptional programming and biological outcomes of downstream genes. An array of epigenetic modifications plays a pivotal role in shaping the chromatin architecture, which controls DNA access to the transcriptional machinery. Acetylation of the amino acid lysine is a widespread epigenetic modification that serves as a marker for gene activation, which intertwines the maintenance of cellular homeostasis and the regulation of signaling during stress. The biochemical horizon of acetylation ranges from orchestrating the stability and cellular localization of proteins that engage in the cell cycle to DNA repair and metabolism. Furthermore, lysine acetyltransferases (KATs) modulate the functions of transcription factors that govern cellular response to microbial infections, genotoxic stress, and inflammation. Due to their central role in many biological processes, mutations in KATs cause developmental and intellectual challenges and metabolic disorders. Despite the availability of tools for detecting acetylation, the mechanistic knowledge of acetylation-mediated cellular processes remains limited. This review aims to integrate molecular and structural bases of KAT functions, which would help design highly selective tools for understanding the biology of KATs toward developing new disease treatments.
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Affiliation(s)
- Chenise O’Garro
- Department of Biology, Medgar Evers College, City University of New York, Brooklyn, NY 11225, USA; (C.O.); (L.I.); (Z.A.)
| | - Loveth Igbineweka
- Department of Biology, Medgar Evers College, City University of New York, Brooklyn, NY 11225, USA; (C.O.); (L.I.); (Z.A.)
| | - Zonaira Ali
- Department of Biology, Medgar Evers College, City University of New York, Brooklyn, NY 11225, USA; (C.O.); (L.I.); (Z.A.)
| | - Mihaly Mezei
- Department of Pharmaceutical Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA;
| | - Shiraz Mujtaba
- Department of Biology, Medgar Evers College, City University of New York, Brooklyn, NY 11225, USA; (C.O.); (L.I.); (Z.A.)
- Correspondence:
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13
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Varešlija D, Ward E, Purcell SP, Cosgrove NS, Cocchiglia S, O'Halloran PJ, Charmsaz S, Bane FT, Brett FM, Farrell M, Cryan J, Beausang A, Hudson L, Turnbul AK, Dixon JM, Hill ADK, Priedigkeit N, Oesterreich S, Lee AV, Sims AH, Redmond AM, Carroll JS, Young LS. Comparative analysis of the AIB1 interactome in breast cancer reveals MTA2 as a repressive partner which silences E-Cadherin to promote EMT and associates with a pro-metastatic phenotype. Oncogene 2021; 40:1318-1331. [PMID: 33420368 PMCID: PMC7892341 DOI: 10.1038/s41388-020-01606-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 10/20/2020] [Accepted: 12/07/2020] [Indexed: 02/08/2023]
Abstract
Steroid regulated cancer cells use nuclear receptors and associated regulatory proteins to orchestrate transcriptional networks to drive disease progression. In primary breast cancer, the coactivator AIB1 promotes estrogen receptor (ER) transcriptional activity to enhance cell proliferation. The function of the coactivator in ER+ metastasis however is not established. Here we describe AIB1 as a survival factor, regulator of pro-metastatic transcriptional pathways and a promising actionable target. Genomic alterations and functional expression of AIB1 associated with reduced disease-free survival in patients and enhanced metastatic capacity in novel CDX and PDX ex-vivo models of ER+ metastatic disease. Comparative analysis of the AIB1 interactome with complementary RNAseq characterized AIB1 as a transcriptional repressor. Specifically, we report that AIB1 interacts with MTA2 to form a repressive complex, inhibiting CDH1 (encoding E-cadherin) to promote EMT and drive progression. We further report that pharmacological and genetic inhibition of AIB1 demonstrates significant anti-proliferative activity in patient-derived models establishing AIB1 as a viable strategy to target endocrine resistant metastasis. This work defines a novel role for AIB1 in the regulation of EMT through transcriptional repression in advanced cancer cells with a considerable implication for prognosis and therapeutic interventions.
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Affiliation(s)
- Damir Varešlija
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland.
| | - Elspeth Ward
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Siobhan P Purcell
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Nicola S Cosgrove
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Sinéad Cocchiglia
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Philip J O'Halloran
- Department of Neurosurgery, National Neurosurgical Center, Beaumont Hospital, Dublin, Ireland
| | - Sara Charmsaz
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Fiona T Bane
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Francesca M Brett
- Department of Neuropathology, National Neurosurgical Center, Beaumont Hospital, Dublin, Ireland
| | - Michael Farrell
- Department of Neuropathology, National Neurosurgical Center, Beaumont Hospital, Dublin, Ireland
| | - Jane Cryan
- Department of Neuropathology, National Neurosurgical Center, Beaumont Hospital, Dublin, Ireland
| | - Alan Beausang
- Department of Neuropathology, National Neurosurgical Center, Beaumont Hospital, Dublin, Ireland
| | - Lance Hudson
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Arran K Turnbul
- Breast Cancer Now Research Laboratories, Edinburgh, EH4 2XU, UK
| | - J Michael Dixon
- Breast Cancer Now Research Laboratories, Edinburgh, EH4 2XU, UK
| | - Arnold D K Hill
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Nolan Priedigkeit
- Department of Pharmacology and Chemical Biology, University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, PA, USA
| | - Steffi Oesterreich
- Department of Pharmacology and Chemical Biology, University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Women's Cancer Research Center, Magee-Women's Research Institute, University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, PA, USA
| | - Adrian V Lee
- Department of Pharmacology and Chemical Biology, University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Women's Cancer Research Center, Magee-Women's Research Institute, University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Human Genetics, University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, PA, USA
| | - Andrew H Sims
- Applied Bioinformatics of Cancer Group, University of Edinburgh Cancer Research UK Centre, MRC Institute of Genetics & Molecular Medicine, Western General Hospital, Edinburgh, UK
| | - Aisling M Redmond
- Cancer Research UK Cambridge Institute, University of Cambridge, Li Ka Shing Centre, Robinson Way, Cambridge, CB2 0RE, UK
| | - Jason S Carroll
- Cancer Research UK Cambridge Institute, University of Cambridge, Li Ka Shing Centre, Robinson Way, Cambridge, CB2 0RE, UK
| | - Leonie S Young
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland.
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14
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Charmsaz S, Doherty B, Cocchiglia S, Varešlija D, Marino A, Cosgrove N, Marques R, Priedigkeit N, Purcell S, Bane F, Bolger J, Byrne C, O'Halloran PJ, Brett F, Sheehan K, Brennan K, Hopkins AM, Keelan S, Jagust P, Madden S, Martinelli C, Battaglini M, Oesterreich S, Lee AV, Ciofani G, Hill ADK, Young LS. ADAM22/LGI1 complex as a new actionable target for breast cancer brain metastasis. BMC Med 2020; 18:349. [PMID: 33208158 PMCID: PMC7677775 DOI: 10.1186/s12916-020-01806-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 10/02/2020] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Metastatic breast cancer is a major cause of cancer-related deaths in woman. Brain metastasis is a common and devastating site of relapse for several breast cancer molecular subtypes, including oestrogen receptor-positive disease, with life expectancy of less than a year. While efforts have been devoted to developing therapeutics for extra-cranial metastasis, drug penetration of blood-brain barrier (BBB) remains a major clinical challenge. Defining molecular alterations in breast cancer brain metastasis enables the identification of novel actionable targets. METHODS Global transcriptomic analysis of matched primary and metastatic patient tumours (n = 35 patients, 70 tumour samples) identified a putative new actionable target for advanced breast cancer which was further validated in vivo and in breast cancer patient tumour tissue (n = 843 patients). A peptide mimetic of the target's natural ligand was designed in silico and its efficacy assessed in in vitro, ex vivo and in vivo models of breast cancer metastasis. RESULTS Bioinformatic analysis of over-represented pathways in metastatic breast cancer identified ADAM22 as a top ranked member of the ECM-related druggable genome specific to brain metastases. ADAM22 was validated as an actionable target in in vitro, ex vivo and in patient tumour tissue (n = 843 patients). A peptide mimetic of the ADAM22 ligand LGI1, LGI1MIM, was designed in silico. The efficacy of LGI1MIM and its ability to penetrate the BBB were assessed in vitro, ex vivo and in brain metastasis BBB 3D biometric biohybrid models, respectively. Treatment with LGI1MIM in vivo inhibited disease progression, in particular the development of brain metastasis. CONCLUSION ADAM22 expression in advanced breast cancer supports development of breast cancer brain metastasis. Targeting ADAM22 with a peptide mimetic LGI1MIM represents a new therapeutic option to treat metastatic brain disease.
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Affiliation(s)
- Sara Charmsaz
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | - Ben Doherty
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | - Sinéad Cocchiglia
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | - Damir Varešlija
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | - Attilio Marino
- Smart Bio-Interfaces, Istituto Italiano di Tecnologia, Scuola Superiore Sant'Anna, Pontedera, Italy
| | - Nicola Cosgrove
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | - Ricardo Marques
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | - Nolan Priedigkeit
- Women's Cancer Research Centre, Magee-Women's Research Institute, University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, PA, USA
| | - Siobhan Purcell
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | - Fiona Bane
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | - Jarlath Bolger
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | - Christopher Byrne
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | - Philip J O'Halloran
- Department of Neurosurgery, National Neurosurgical Centre, Beaumont Hospital, Dublin, Ireland
| | - Francesca Brett
- Department of Neuropathology, Beaumont Hospital, Dublin, Ireland
| | - Katherine Sheehan
- Department of Pathology, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Kieran Brennan
- Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Ann M Hopkins
- Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Stephen Keelan
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | - Petra Jagust
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | - Stephen Madden
- Data Science Centre, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Chiara Martinelli
- Smart Bio-Interfaces, Istituto Italiano di Tecnologia, Scuola Superiore Sant'Anna, Pontedera, Italy
| | - Matteo Battaglini
- Smart Bio-Interfaces, Istituto Italiano di Tecnologia, Scuola Superiore Sant'Anna, Pontedera, Italy.,The Biorobotics Institute, Scuola Superiore Sant'Anna, Pontedera, Italy
| | - Steffi Oesterreich
- Women's Cancer Research Centre, Magee-Women's Research Institute, University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, PA, USA
| | - Adrian V Lee
- Women's Cancer Research Centre, Magee-Women's Research Institute, University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, PA, USA
| | - Gianni Ciofani
- Smart Bio-Interfaces, Istituto Italiano di Tecnologia, Scuola Superiore Sant'Anna, Pontedera, Italy
| | - Arnold D K Hill
- Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland.,Department of Surgery, Beaumont Hospital, Dublin, Ireland
| | - Leonie S Young
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin 2, Ireland.
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15
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Agbo L, Lambert JP. Proteomics contribution to the elucidation of the steroid hormone receptors functions. J Steroid Biochem Mol Biol 2019; 192:105387. [PMID: 31173874 DOI: 10.1016/j.jsbmb.2019.105387] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 05/28/2019] [Accepted: 05/28/2019] [Indexed: 10/26/2022]
Abstract
Steroid hormones have far-ranging biological impacts and more are continuously being uncovered. Over the last decades, proteomics approaches have become key to better understand biological processes. Due to multiple technical breakthroughs allowing for the concurrent identification and/or quantification of thousands of analytes using mass spectrometers, researchers employing proteomics tools today can now obtain truly holistic views of multiple facets of the human proteome. Here, we review how the field of proteomics has contributed to discoveries about steroid hormones, their receptors and their impact on human pathologies. In particular, the involvement of steroid receptors in cancer initiation, development, metastasis and treatment will be highlighted. Techniques at the forefront of the proteomics field will also be discussed to present how they can contribute to a better understanding of steroid hormone receptors.
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Affiliation(s)
- Lynda Agbo
- Department of Molecular Medicine and Cancer Research Centre, Université Laval, Québec, QC, Canada; Research Center CHU de Québec-Université Laval, Québec, QC G1V 4G2, Canada
| | - Jean-Philippe Lambert
- Department of Molecular Medicine and Cancer Research Centre, Université Laval, Québec, QC, Canada; Research Center CHU de Québec-Université Laval, Québec, QC G1V 4G2, Canada.
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16
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Charmsaz S, Collins DM, Perry AS, Prencipe M. Novel Strategies for Cancer Treatment: Highlights from the 55th IACR Annual Conference. Cancers (Basel) 2019; 11:cancers11081125. [PMID: 31394729 PMCID: PMC6721818 DOI: 10.3390/cancers11081125] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 07/17/2019] [Accepted: 08/06/2019] [Indexed: 12/16/2022] Open
Abstract
While conventional cancer treatments, such as surgery, radiotherapy and chemotherapy, have been combined for decades in an effort to treat cancer patients, the emergence of novel fields of cancer research have led to a renewed interest in combining conventional treatments with more innovative approaches. The realisation that cancer progression is not exclusively due to changes in the cancer epithelial cells, but also involves changes in the tumour microenvironment, has opened new avenues for combination treatments. Here we discuss the use of combination therapies presented at the 55th Irish Association for Cancer Research (IACR) Annual Conference, highlighting examples of novel therapeutic strategies which, combined with conventional therapies, may greatly enhance not only the overall outcome for patients, but also the quality of life for cancer survivors. Among the novel treatment strategies, immune metabolism, epigenetic therapies and physical exercise are presented. In addition, novel technologies in the field of precision medicine, which will be useful to discover new therapeutics and to stratify patients for combination treatments, are also discussed.
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Affiliation(s)
- Sara Charmsaz
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, D2 Dublin, Ireland
| | - Denis M Collins
- National Institute for Cellular Biotechnology, Dublin City University, Glasnevin, D9 Dublin, Ireland
| | - Antoinette S Perry
- Cancer Biology and Therapeutics Laboratory, UCD Conway Institute, University College Dublin, Belfield, D4 Dublin, Ireland
- UCD School of Biology and Environmental Science, University College Dublin, Belfield, D4 Dublin, Ireland
| | - Maria Prencipe
- Cancer Biology and Therapeutics Laboratory, UCD Conway Institute, University College Dublin, Belfield, D4 Dublin, Ireland.
- UCD School of Biomolecular and Biomedical Science, University College Dublin, Belfield, D4 Dublin, Ireland.
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17
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A novel role for NFIA in restoring radiosensitivity in radioresistant NSCLC cells by downregulating the AKT and ERK pathways. Biochem Biophys Res Commun 2019; 515:558-564. [PMID: 31178144 DOI: 10.1016/j.bbrc.2019.06.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 06/02/2019] [Indexed: 12/27/2022]
Abstract
Radioresistance remains the most challenging issue leading to radiotherapy failure in the treatment of non-small cell lung cancer (NSCLC). The nuclear factor IA (NFIA) is associated with tumor response to treatments in many cancers, but its role in NSCLC radioresistance remains unclear. Here, we established two radioresistant NSCLC cell lines, H226R and H460R, by dose-gradient irradiation to investigate the function of NFIA in NSCLC radioresistance. The results showed a dramatically reduced expression of NFIA in radioresistant cells accompanied with elevated phosphorylation of AKT and ERK, when compared with their parental cells. Overexpression of NFIA restored the sensitivity of radioresistant cells to radiation through increased ionizing radiation (IR)-induced apoptosis and DNA damage by downregulating p-AKT and p-ERK, whereas knockdown of NFIA promoted radioresistance of the parental cells. Our findings suggested that NFIA enhanced cell radiosensitivity by downregulating p-AKT and p-ERK in NSCLC. Our study fills a gap in the field of NFIA and radioresistance, and establishes a mechanistic foundation to improve radiotherapy efficiency in NSCLC patients.
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18
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Endogenous interaction profiling identifies DDX5 as an oncogenic coactivator of transcription factor Fra-1. Oncogene 2019; 38:5725-5738. [PMID: 31015574 DOI: 10.1038/s41388-019-0824-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 03/11/2019] [Accepted: 04/02/2019] [Indexed: 01/06/2023]
Abstract
Fra-1, a member of the activator protein 1 (AP-1) family, is overexpressed in triple-negative breast cancer (TNBC) and plays crucial roles in tumor growth. Here we report the identification of 118 proteins interacting with endogenous chromatin-bound Fra-1 in TNBC cells, highlighting DDX5 as the most enriched Fra-1-interacting protein. DDX5, a previously unrecognized protein in the Fra-1 transcriptional network, shows extensive overlap with Fra-1 cistrome and transcriptome that are highly associated with the TNBC cell growth. We provide evidence that DDX5 expression enhances Fra-1 transcriptional activity and potentiates Fra-1-driven cell proliferation. Furthermore, we show that the DDX5 target gene signature predicts poor clinical outcome in breast cancer patients. DDX5 protein level was higher in triple-negative basal-like tumors than in non-basal-like tumors, including luminal A, luminal B, and HER2-enriched subtypes. Collectively, by combining proteomic and genomic approaches we reveal a role for DDX5 as a regulatory protein of Fra-1 signaling and suggest DDX5 as a potential therapeutic target for TNBC.
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19
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Giulianelli S, Riggio M, Guillardoy T, Pérez Piñero C, Gorostiaga MA, Sequeira G, Pataccini G, Abascal MF, Toledo MF, Jacobsen BM, Guerreiro AC, Barros A, Novaro V, Monteiro FL, Amado F, Gass H, Abba M, Helguero LA, Lanari C. FGF2 induces breast cancer growth through ligand-independent activation and recruitment of ERα and PRBΔ4 isoform to MYC regulatory sequences. Int J Cancer 2019; 145:1874-1888. [PMID: 30843188 DOI: 10.1002/ijc.32252] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 01/23/2019] [Accepted: 02/20/2019] [Indexed: 02/06/2023]
Abstract
Progression to hormone-independent growth leading to endocrine therapy resistance occurs in a high proportion of patients with estrogen receptor alpha (ERα) and progesterone receptors (PR) positive breast cancer. We and others have previously shown that estrogen- and progestin-induced tumor growth requires ERα and PR interaction at their target genes. Here, we show that fibroblast growth factor 2 (FGF2)-induces cell proliferation and tumor growth through hormone-independent ERα and PR activation and their interaction at the MYC enhancer and proximal promoter. MYC inhibitors, antiestrogens or antiprogestins reverted FGF2-induced effects. LC-MS/MS identified 700 canonical proteins recruited to MYC regulatory sequences after FGF2 stimulation, 397 of which required active ERα (ERα-dependent). We identified ERα-dependent proteins regulating transcription that, after FGF2 treatment, were recruited to the enhancer as well as proteins involved in transcription initiation that were recruited to the proximal promoter. Also, among the ERα-dependent and independent proteins detected at both sites, PR isoforms A and B as well as the novel protein product PRBΔ4 were found. PRBΔ4 lacks the hormone-binding domain and was able to induce reporter gene expression from estrogen-regulated elements and to increase cell proliferation when cells were stimulated with FGF2 but not by progestins. Analysis of the Cancer Genome Atlas data set revealed that PRBΔ4 expression is associated with worse overall survival in luminal breast cancer patients. This discovery provides a new mechanism by which growth factor signaling can engage nonclassical hormone receptor isoforms such as PRBΔ4, which interacts with growth-factor activated ERα and PR to stimulate MYC gene expression and hence progression to endocrine resistance.
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Affiliation(s)
- Sebastián Giulianelli
- Instituto de Biología y Medicina Experimental, IByME-CONICET, Buenos Aires, Argentina.,Instituto de Biología de Organismos Marinos, IBIOMAR-CCT CENPAT-CONICET, Puerto Madryn, Argentina
| | - Marina Riggio
- Instituto de Biología y Medicina Experimental, IByME-CONICET, Buenos Aires, Argentina
| | - Tomas Guillardoy
- Instituto de Biología y Medicina Experimental, IByME-CONICET, Buenos Aires, Argentina
| | - Cecilia Pérez Piñero
- Instituto de Biología y Medicina Experimental, IByME-CONICET, Buenos Aires, Argentina
| | - María A Gorostiaga
- Instituto de Biología y Medicina Experimental, IByME-CONICET, Buenos Aires, Argentina
| | - Gonzalo Sequeira
- Instituto de Biología y Medicina Experimental, IByME-CONICET, Buenos Aires, Argentina
| | - Gabriela Pataccini
- Instituto de Biología y Medicina Experimental, IByME-CONICET, Buenos Aires, Argentina
| | - María F Abascal
- Instituto de Biología y Medicina Experimental, IByME-CONICET, Buenos Aires, Argentina
| | - María F Toledo
- Instituto de Biología y Medicina Experimental, IByME-CONICET, Buenos Aires, Argentina
| | - Britta M Jacobsen
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Ana C Guerreiro
- Department of Chemistry, QOPNA - Universidade de Aveiro, Aveiro, Portugal
| | - António Barros
- Department of Chemistry, QOPNA - Universidade de Aveiro, Aveiro, Portugal
| | - Virginia Novaro
- Instituto de Biología y Medicina Experimental, IByME-CONICET, Buenos Aires, Argentina
| | - Fátima L Monteiro
- Department of Medical Sciences, iBiMED - Universidade de Aveiro, Aveiro, Portugal
| | - Francisco Amado
- Department of Chemistry, QOPNA - Universidade de Aveiro, Aveiro, Portugal
| | - Hugo Gass
- Hospital de Agudos Magdalena V de Martínez, General Pacheco, Buenos Aires, Argentina
| | - Martin Abba
- CINIBA, Universidad Nacional de La Plata, La Plata, Argentina
| | - Luisa A Helguero
- Department of Medical Sciences, iBiMED - Universidade de Aveiro, Aveiro, Portugal
| | - Claudia Lanari
- Instituto de Biología y Medicina Experimental, IByME-CONICET, Buenos Aires, Argentina
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20
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Li J, Rong MH, Dang YW, He RQ, Lin P, Yang H, Li XJ, Xiong DD, Zhang LJ, Qin H, Feng CX, Chen XY, Zhong JC, Ma J, Chen G. Differentially expressed gene profile and relevant pathways of the traditional Chinese medicine cinobufotalin on MCF‑7 breast cancer cells. Mol Med Rep 2019; 19:4256-4270. [PMID: 30896874 PMCID: PMC6471831 DOI: 10.3892/mmr.2019.10062] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Accepted: 01/01/2019] [Indexed: 02/07/2023] Open
Abstract
Cinobufotalin is a chemical compound extracted from the skin of dried bufo toads that may have curative potential for certain malignancies through different mechanisms; however, these mechanisms remain unexplored in breast cancer. The aim of the present study was to investigate the antitumor mechanism of cinobufotalin in breast cancer by using microarray data and in silico analysis. The microarray data set GSE85871, in which cinobufotalin exerted influences on the MCF‑7 breast cancer cells, was acquired from the Gene Expression Omnibus database, and the differentially expressed genes (DEGs) were analyzed. Subsequently, protein interaction analysis was conducted, which clarified the clinical significance of core genes, and Gene Ontology and Kyoto Encyclopedia of Genes and Genomes were used to analyze cinobufotalin‑related pathways. The Connectivity Map (CMAP) database was used to select existing compounds that exhibited curative properties similar to those of cinobufotalin. A total of 1,237 DEGs were identified from breast cancer cells that were treated with cinobufotalin. Two core genes, SRC proto‑oncogene non‑receptor tyrosine kinase and cyclin‑dependent kinase inhibitor 2A, were identified as serving a vital role in the onset and development of breast cancer, and their expression levels were markedly reduced following cinobufotalin treatment as detected by the microarray of GSE85871. It also was revealed that the 'neuroactive ligand‑receptor interaction' and 'calcium signaling' pathways may be crucial for cinobufotalin to perform its functions in breast cancer. Conducting a matching search in CMAP, miconazole and cinobufotalin were indicated to possessed similar molecular mechanisms. In conclusion, cinobufotalin may serve as an effective compound for the treatment of a subtype of breast cancer that is triple positive for the presence of estrogen, progesterone and human epidermal growth factor receptor‑2 receptors, and its mechanism may be related to different pathways. In addition, cinobufotalin is likely to exert its antitumor influences in a similar way as miconazole in MCF‑7 cells.
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Affiliation(s)
- Jie Li
- Department of Spleen and Stomach Diseases, The First Affiliated Hospital of Guangxi University of Traditional Chinese Medicine, Nanning, Guangxi Zhuang Autonomous Region 530023, P.R. China
| | - Min-Hua Rong
- Research Department, The Affiliated Cancer Hospital, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Yi-Wu Dang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Rong-Quan He
- Department of Medical Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Peng Lin
- Ultrasonics Division of Radiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Hong Yang
- Ultrasonics Division of Radiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Xiao-Jiao Li
- PET‑CT, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Dan-Dan Xiong
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Li-Jie Zhang
- Ultrasonics Division of Radiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Hui Qin
- Ultrasonics Division of Radiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Cai-Xia Feng
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Xiao-Yi Chen
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Jin-Cai Zhong
- Department of Medical Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Jie Ma
- Department of Medical Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Gang Chen
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
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21
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Rani A, Stebbing J, Giamas G, Murphy J. Endocrine Resistance in Hormone Receptor Positive Breast Cancer-From Mechanism to Therapy. Front Endocrinol (Lausanne) 2019; 10:245. [PMID: 31178825 PMCID: PMC6543000 DOI: 10.3389/fendo.2019.00245] [Citation(s) in RCA: 140] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 03/28/2019] [Indexed: 12/24/2022] Open
Abstract
The importance and role of the estrogen receptor (ER) pathway has been well-documented in both breast cancer (BC) development and progression. The treatment of choice in women with metastatic breast cancer (MBC) is classically divided into a variety of endocrine therapies, 3 of the most common being: selective estrogen receptor modulators (SERM), aromatase inhibitors (AI) and selective estrogen receptor down-regulators (SERD). In a proportion of patients, resistance develops to endocrine therapy due to a sophisticated and at times redundant interference, at the molecular level between the ER and growth factor. The progression to endocrine resistance is considered to be a gradual, step-wise process. Several mechanisms have been proposed but thus far none of them can be defined as the complete explanation behind the phenomenon of endocrine resistance. Although multiple cellular, molecular and immune mechanisms have been and are being extensively studied, their individual roles are often poorly understood. In this review, we summarize current progress in our understanding of ER biology and the molecular mechanisms that predispose and determine endocrine resistance in breast cancer patients.
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Affiliation(s)
- Aradhana Rani
- School of Life Sciences, University of Westminster, London, United Kingdom
- *Correspondence: Aradhana Rani
| | - Justin Stebbing
- Department of Surgery and Cancer, Imperial College London, London, United Kingdom
| | - Georgios Giamas
- Department of Biochemistry and Biomedicine, School of Life Sciences, University of Sussex, Brighton, United Kingdom
| | - John Murphy
- School of Life Sciences, University of Westminster, London, United Kingdom
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22
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Targeting of JAK-STAT Signaling in Breast Cancer: Therapeutic Strategies to Overcome Drug Resistance. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1152:271-281. [PMID: 31456189 DOI: 10.1007/978-3-030-20301-6_14] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Rapidly emerging ground-breaking discoveries have provided near to complete resolution of breast cancer signaling landscape and scientists have mapped the knowledge gaps associated with proteins encoded by the human genome. Based on the insights gleaned from decades of research, it seems clear that ligands transmit distinct information through specific receptors that is processed into characteristically unique biological outputs. Advances in imaging, structural biology, proteomics and genome editing have helped us to gain new insights into JAK-STAT signaling and how alterations in this pathway contributed to development of breast cancer and metastatic spread. Data obtained through high-throughput technologies has started to shed light on signal-transducer complexes formed during JAK-STAT signaling. Pharmacologists and molecular biologists are focusing on the strategies to therapeutically target this pathway to overcome drug resistance associated with breast cancer.
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23
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Wang G, Zheng X, Zheng Y, Cao R, Zhang M, Sun Y, Wu J. Construction and analysis of the lncRNA‑miRNA‑mRNA network based on competitive endogenous RNA reveals functional genes in heart failure. Mol Med Rep 2018; 19:994-1003. [PMID: 30569169 PMCID: PMC6323221 DOI: 10.3892/mmr.2018.9734] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2018] [Accepted: 11/19/2018] [Indexed: 12/12/2022] Open
Abstract
Heart failure (HF) is a principal cause of morbidity and mortality worldwide, affecting an estimated 38 million people. Although significant progress has been made with respect to the underlying molecular mechanisms, the role of the competing endogenous RNA (ceRNA) network in the pathogenesis of HF remains largely unknown. In this study, an HF-associated ceRNA network was constructed based on the differentially expressed long noncoding RNAs (lncRNAs), microRNAs (miRNAs) and mRNAs obtained, respectively, from the GSE77399, GSE104150 and GSE84796 datasets. The ceRNA network consisted of 12 lncRNA nodes, 43 miRNA nodes, 343 mRNA nodes and 530 edges. Gene ontology and Kyoto Encyclopedia of Genes and Genomes pathway analysis demonstrated that the ceRNA network was primarily enriched in the immune response, inflammatory response and T cell and B cell receptor signaling pathways. In addition, three lncRNAs (growth arrest specific 5, taurine upregulated 1 and HOX transcript antisense RNA) and three miRNAs [hsa-miRNA (miR)-26b-5p, hsa-miR-8485 and hsa-miR-940] with higher node degrees compared with other genes were selected as hub nodes. The expression of hub nodes in patients with HF was verified by reverse transcription-quantitative polymerase chain reaction analysis. The present study provided further insights into the important roles of the ceRNA network in HF development, and indicated the potential use of these hub nodes as diagnostic biomarkers and therapeutic targets.
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Affiliation(s)
- Guohong Wang
- Department of Cardiovascular Center of Beijing Tongren Hospital, Affiliated to Capital Medical University, Beijing 100730, P.R. China
| | - Xianghui Zheng
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150010, P.R. China
| | - Yang Zheng
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150010, P.R. China
| | - Rui Cao
- Cardiovascular Department, The First Hospital of Harbin, Harbin, Heilongjiang 150010, P.R. China
| | - Maomao Zhang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150010, P.R. China
| | - Yong Sun
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150010, P.R. China
| | - Jian Wu
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150010, P.R. China
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24
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Ward E, Varešlija D, Charmsaz S, Fagan A, Browne AL, Cosgrove N, Cocchiglia S, Purcell SP, Hudson L, Das S, O'Connor D, O'Halloran PJ, Sims AH, Hill AD, Young LS. Epigenome-wide SRC-1-Mediated Gene Silencing Represses Cellular Differentiation in Advanced Breast Cancer. Clin Cancer Res 2018; 24:3692-3703. [PMID: 29567811 DOI: 10.1158/1078-0432.ccr-17-2615] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 02/12/2018] [Accepted: 03/16/2018] [Indexed: 11/16/2022]
Abstract
Purpose: Despite the clinical utility of endocrine therapies for estrogen receptor-positive (ER) breast cancer, up to 40% of patients eventually develop resistance, leading to disease progression. The molecular determinants that drive this adaptation to treatment remain poorly understood. Methylome aberrations drive cancer growth yet the functional role and mechanism of these epimutations in drug resistance are poorly elucidated.Experimental Design: Genome-wide multi-omics sequencing approach identified a differentially methylated hub of prodifferentiation genes in endocrine resistant breast cancer patients and cell models. Clinical relevance of the functionally validated methyl-targets was assessed in a cohort of endocrine-treated human breast cancers and patient-derived ex vivo metastatic tumors.Results: Enhanced global hypermethylation was observed in endocrine treatment resistant cells and patient metastasis relative to sensitive parent cells and matched primary breast tumor, respectively. Using paired methylation and transcriptional profiles, we found that SRC-1-dependent alterations in endocrine resistance lead to aberrant hypermethylation that resulted in reduced expression of a set of differentiation genes. Analysis of ER-positive endocrine-treated human breast tumors (n = 669) demonstrated that low expression of this prodifferentiation gene set significantly associated with poor clinical outcome (P = 0.00009). We demonstrate that the reactivation of these genes in vitro and ex vivo reverses the aggressive phenotype.Conclusions: Our work demonstrates that SRC-1-dependent epigenetic remodeling is a 'high level' regulator of the poorly differentiated state in ER-positive breast cancer. Collectively these data revealed an epigenetic reprograming pathway, whereby concerted differential DNA methylation is potentiated by SRC-1 in the endocrine resistant setting. Clin Cancer Res; 24(15); 3692-703. ©2018 AACR.
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Affiliation(s)
- Elspeth Ward
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Damir Varešlija
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Sara Charmsaz
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Ailis Fagan
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Alacoque L Browne
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Nicola Cosgrove
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Sinéad Cocchiglia
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Siobhan P Purcell
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Lance Hudson
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Sudipto Das
- Molecular and Cellular Therapeutics, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Darran O'Connor
- Molecular and Cellular Therapeutics, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Philip J O'Halloran
- Department of Neurosurgery, National Neurosurgical Center, Beaumont Hospital, Dublin, Ireland
| | - Andrew H Sims
- Applied Bioinformatics of Cancer Group, University of Edinburgh Cancer Research UK Centre, MRC Institute of Genetics & Molecular Medicine, Western General Hospital, Edinburgh, United Kingdom
| | - Arnold D Hill
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Leonie S Young
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland.
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