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Jiang W, Xu Y, Chen X, Pan S, Zhu X. E26 transformation-specific variant 4 as a tumor promotor in human cancers through specific molecular mechanisms. Mol Ther Oncolytics 2021; 22:518-527. [PMID: 34553037 PMCID: PMC8433062 DOI: 10.1016/j.omto.2021.07.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
E26 transformation-specific (ETS) variant 4 (ETV4) is an important transcription factor that belongs to the ETS transcription factor family and is essential for much cellular physiology. Recent evidence has revealed that ETV4 is aberrantly expressed in many types of tumors, and its overexpression is related to poor prognosis of cancer patients. Additionally, increasing studies have identified that ETV4 promotes cancer growth, invasion, metastasis, and drug resistance. Mechanistically, the level of ETV4 is regulated by some post-translation modulations in a broad spectrum of cancers. However, little progress has been made to comprehensively summarize the critical roles of ETV4 in different human cancers. Hence, this review mainly focuses on the physiological functions of ETV4 in various human tumors. In addition, the molecular mechanisms of ETV4-mediated cancer progression were elucidated, including how ETV4 modulates its downstream signaling pathways and how ETV4 is regulated by some factors. On this basis, the present review may provide a valuable therapeutics strategy for future cancer treatment by targeting ETV4-related pathways.
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Affiliation(s)
- Wenxiao Jiang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - Yichi Xu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - Xin Chen
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - Shuya Pan
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - Xueqiong Zhu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou 325027, China
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Cao Q, Yang S, Lv Q, Liu Y, Li L, Wu X, Qu G, He X, Zhang X, Sun S, Li B, An J, Hu T, Xue J. Five ETS family members, ELF-1, ETV-4, ETV-3L, ETS-1, and ETS-2 upregulate human leukocyte-associated immunoglobulin-like receptor-1 gene basic promoter activity. Aging (Albany NY) 2019; 10:1390-1401. [PMID: 29915163 PMCID: PMC6046229 DOI: 10.18632/aging.101475] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Accepted: 06/10/2018] [Indexed: 12/14/2022]
Abstract
Human leukocyte-associated immunoglobulin-like receptor-1 (LAIR-1), an immunoinhibitory receptor, is expressed on most types of hematopoietic cells and some tumor cells. LAIR-1 plays an inhibitory role in immune cell maturation, differentiation, and activation. LAIR-1 is also involved in some autoimmune diseases and tumors. However, the mechanism controlling the regulation of the LAIR-1 gene is still unknown. In order to elucidate the molecular mechanisms involved in LAIR-1 regulation, in the present study, we cloned and characterized the promoter region of LAIR-1 gene using a series of truncated promoter plasmids in luciferase reporter assays. Our results show that the basic core promoter of LAIR-1 is located within the region -256/-8 relative to the translational start site. Our further studies indicate that five ETS transcription factors: ELF-1, ETV-4, ETV-3L, ETS-1 and ETS-2, can up-regulate the LAIR-1 basic promoter activity. Of these, ETS-2 is the most effective transcription factor. Moreover, ETS-2 was confirmed to interact directly with the basic promoter of LAIR-1. This study presents the first description of regions/factors capable of up-regulation the promoter activity of LAIR-1. This new knowledge contributes to understanding of the molecular mechanisms involved in LAIR-1 associated immune regulation and diseases.
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Affiliation(s)
- Qizhi Cao
- Department of Immunology, School of Basic Medical Sciences, Binzhou Medical University, Shandong 264003, China.,Anti-aging Research Institution, Binzhou Medical University, Shandong 264003, China
| | - Shude Yang
- School of Agriculture, Ludong University, Shandong 264003, China
| | - Qing Lv
- Anti-aging Research Institution, Binzhou Medical University, Shandong 264003, China.,School of Gerontology, Binzhou Medical University, Shandong 264003, China
| | - Yan Liu
- Department of Immunology, School of Basic Medical Sciences, Binzhou Medical University, Shandong 264003, China
| | - Li Li
- Beijing Key Laboratory of Drug Target and Screening Research, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Xiaojie Wu
- Department of Immunology, School of Basic Medical Sciences, Binzhou Medical University, Shandong 264003, China
| | - Guiwu Qu
- Anti-aging Research Institution, Binzhou Medical University, Shandong 264003, China.,School of Gerontology, Binzhou Medical University, Shandong 264003, China
| | - Xiaoli He
- The People's Liberation Army 107 Hospital, Affiliated Hospital of Bin Zhou Medical University, Yantai 264002, China
| | - Xiaoshu Zhang
- Department of Immunology, School of Basic Medical Sciences, Binzhou Medical University, Shandong 264003, China
| | - Shuqin Sun
- School of Gerontology, Binzhou Medical University, Shandong 264003, China
| | - Boqing Li
- Department of Microbiology, School of Basic Medical Sciences, Binzhou Medical University, Shandong 264003, China
| | - Jing An
- School of Medicine, University of California - San Diego, La Jolla, CA 92037, USA
| | - Tao Hu
- Department of Immunology, School of Basic Medical Sciences, Binzhou Medical University, Shandong 264003, China
| | - Jiangnan Xue
- Department of Immunology, School of Basic Medical Sciences, Binzhou Medical University, Shandong 264003, China
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Kumar A, Dholakia K, Sikorska G, Martinez LA, Levenson AS. MTA1-Dependent Anticancer Activity of Gnetin C in Prostate Cancer. Nutrients 2019; 11:E2096. [PMID: 31487842 PMCID: PMC6770780 DOI: 10.3390/nu11092096] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 08/23/2019] [Accepted: 08/30/2019] [Indexed: 02/08/2023] Open
Abstract
The overexpression of metastasis-associated protein 1 (MTA1) in prostate cancer (PCa) contributes to tumor aggressiveness and metastasis. We have reported the inhibition of MTA1 by resveratrol and its potent analog pterostilbene in vitro and in vivo. We have demonstrated that pterostilbene treatment blocks the progression of prostatic intraepithelial neoplasia and adenocarcinoma in mouse models by inhibiting MTA1 expression and signaling. In the current study, we investigated the MTA1 targeted anticancer effects of Gnetin C, a resveratrol dimer, in comparison with resveratrol and pterostilbene. Using DU145 and PC3M PCa cells, we found that Gnetin C downregulates MTA1 more potently than resveratrol and pterostilbene. Further, Gnetin C demonstrated significant MTA1-mediated inhibitory effect on cell viability, colony formation, and migration, while showing a more potent induction of cell death than resveratrol or pterostilbene. In addition, we identified Gnetin C-induced substantial ETS2 (erythroblastosis E26 transformation-specific 2) downregulation, which is not only MTA1-dependent, but is also independent of MTA1 as a possible mechanism for the superior anticancer efficacy of Gnetin C in PCa. Together, these findings underscore the importance of novel potent resveratrol dimer, Gnetin C, as a clinically promising agent for the future development of chemopreventive and possibly combinatorial therapeutic approaches in PCa.
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Affiliation(s)
- Avinash Kumar
- Arnold & Marie Schwartz College of Pharmacy and Health Sciences, Long Island University, Brooklyn, NY 11201, USA.
| | - Kshiti Dholakia
- Arnold & Marie Schwartz College of Pharmacy and Health Sciences, Long Island University, Brooklyn, NY 11201, USA.
| | - Gabriela Sikorska
- Arnold & Marie Schwartz College of Pharmacy and Health Sciences, Long Island University, Brooklyn, NY 11201, USA.
| | | | - Anait S Levenson
- School of Veterinary Medicine, Long Island University, Brookville, NY 11548, USA.
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Newman JA, Cooper CDO, Aitkenhead H, Gileadi O. Structural insights into the autoregulation and cooperativity of the human transcription factor Ets-2. J Biol Chem 2015; 290:8539-49. [PMID: 25670864 PMCID: PMC4375503 DOI: 10.1074/jbc.m114.619270] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Ets-2, like its closely related homologue Ets-1, is a member of the Ets family of DNA binding transcription factors. Both proteins are subject to multiple levels of regulation of their DNA binding and transactivation properties. One such regulatory mechanism is the presence of an autoinhibitory module, which in Ets-1 allosterically inhibits the DNA binding activity. This inhibition can be relieved by interaction with protein partners or cooperative binding to closely separated Ets binding sites in a palindromic arrangement. In this study we describe the 2.5 Å resolution crystal structure of a DNA complex of the Ets-2 Ets domain. The Ets domain crystallized with two distinct species in the asymmetric unit, which closely resemble the autoinhibited and DNA bound forms of Ets-1. This discovery prompted us to re-evaluate the current model for the autoinhibitory mechanism and the structural basis for cooperative DNA binding. In contrast to Ets-1, in which the autoinhibition is caused by a combination of allosteric and steric mechanisms, we were unable to find clear evidence for the allosteric mechanism in Ets-2. We also demonstrated two possibly distinct types of cooperative binding to substrates with Ets binding motifs separated by four and six base pairs and suggest possible molecular mechanisms for this behavior.
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Affiliation(s)
- Joseph A Newman
- From the Structural Genomics Consortium, University of Oxford, Oxford OX3 7DQ, United Kingdom
| | - Christopher D O Cooper
- From the Structural Genomics Consortium, University of Oxford, Oxford OX3 7DQ, United Kingdom
| | - Hazel Aitkenhead
- From the Structural Genomics Consortium, University of Oxford, Oxford OX3 7DQ, United Kingdom
| | - Opher Gileadi
- From the Structural Genomics Consortium, University of Oxford, Oxford OX3 7DQ, United Kingdom
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