1
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Miki R, Matsuo S, Ushida T, Tano S, Imai K, Nawa A, Kajiyama H, Kotani T. TJP1 suppresses trophoblast cell invasion by expressing E2F8 in the human placenta. Mol Cell Endocrinol 2024; 591:112277. [PMID: 38795825 DOI: 10.1016/j.mce.2024.112277] [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: 01/15/2024] [Revised: 05/20/2024] [Accepted: 05/22/2024] [Indexed: 05/28/2024]
Abstract
Adequate extravillous trophoblast (EVT) invasion into the maternal decidua is important for human placental development. We identified that E2F transcription factor 8 (E2F8) suppresses EVT invasion, and that tight junction protein-1 (TJP1) is a potential downstream target gene of E2F8. We investigated the role of TJP1 in the human placenta and regulation of TJP1 expression by E2F8. TJP1 expression decreased in E2F8 knockdown HTR-8/SVneo cells. TJP1 and E2F8 were co-expressed in villi in the first-trimester placenta and in EVTs and villi in the third-trimester placenta. TJP1 was significantly increased in the pre-eclamptic compared with control placenta. TJP1 knockdown increased the invasion of HTR-8/SVneo cells, while TJP1 overexpression inhibited cell invasion. Halo-E2F8 overexpression significantly increased TJP1 expression and TJP1 transcription compared with control placenta. Our findings suggest that E2F8 promotes TJP1 transcription, and that TJP1 expression by E2F8 inhibits EVT invasion. TJP1 and E2F8 may be related to pre-eclampsia pathogenesis.
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Affiliation(s)
- Rika Miki
- Laboratory of Bell Research Center Department of Obstetrics and Gynecology Collaborative Research, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan.
| | - Seiko Matsuo
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Takafumi Ushida
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan; Center for Maternal-Neonatal Care, Nagoya University Hospital, Nagoya, Aichi, 466-8560, Japan
| | - Sho Tano
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Kenji Imai
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Akihiro Nawa
- Laboratory of Bell Research Center Department of Obstetrics and Gynecology Collaborative Research, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Hiroaki Kajiyama
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Tomomi Kotani
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan; Center for Maternal-Neonatal Care, Nagoya University Hospital, Nagoya, Aichi, 466-8560, Japan.
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2
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Karan D, Dubey S, Gunewardena S, Iczkowski KA, Singh M, Liu P, Poletti A, Choo Y, Chen H, Hamann MT. Manzamine A reduces androgen receptor transcription and synthesis by blocking E2F8-DNA interactions and effectively inhibits prostate tumor growth in mice. Mol Oncol 2024; 18:1966-1979. [PMID: 38605607 PMCID: PMC11306517 DOI: 10.1002/1878-0261.13637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 02/14/2024] [Accepted: 03/12/2024] [Indexed: 04/13/2024] Open
Abstract
The androgen receptor (AR) is the main driver in the development of castration-resistant prostate cancer, where the emergence of AR splice variants leads to treatment-resistant disease. Through detailed molecular studies of the marine alkaloid manzamine A (MA), we identified transcription factor E2F8 as a previously unknown regulator of AR transcription that prevents AR synthesis in prostate cancer cells. MA significantly inhibited the growth of various prostate cancer cell lines and was highly effective in inhibiting xenograft tumor growth in mice without any pathophysiological perturbations in major organs. MA suppressed the full-length AR (AR-FL), its spliced variant AR-V7, and the AR-regulated prostate-specific antigen (PSA; also known as KLK3) and human kallikrein 2 (hK2; also known as KLK2) genes. RNA sequencing (RNA-seq) analysis and protein modeling studies revealed E2F8 interactions with DNA as a potential novel target of MA, suppressing AR transcription and its synthesis. This novel mechanism of blocking AR biogenesis via E2F8 may provide an opportunity to control therapy-resistant prostate cancer over the currently used AR antagonists designed to target different parts of the AR gene.
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Affiliation(s)
- Dev Karan
- Department of Pathology, and MCW Cancer CenterMedical College of WisconsinMilwaukeeWIUSA
| | - Seema Dubey
- Department of Pathology, and MCW Cancer CenterMedical College of WisconsinMilwaukeeWIUSA
| | - Sumedha Gunewardena
- Department of Cell Biology and PhysiologyUniversity of Kansas Medical CenterKSUSA
| | - Kenneth A. Iczkowski
- Department of Pathology, and MCW Cancer CenterMedical College of WisconsinMilwaukeeWIUSA
| | - Manohar Singh
- Department of Pathology, and MCW Cancer CenterMedical College of WisconsinMilwaukeeWIUSA
| | - Pengyuan Liu
- Department of Physiology and Center of Systems Molecular MedicineMedical College of WisconsinMilwaukeeWIUSA
| | - Angelo Poletti
- Department of Pharmacological and Biomolecular SciencesUniversity of MilanItaly
| | - Yeun‐Mun Choo
- Department of ChemistryUniversity of MalayaKuala LumpurMalaysia
| | - Hui‐Zi Chen
- Department of MedicineMedical College of WisconsinMilwaukeeWIUSA
| | - Mark T. Hamann
- Department of Drug Discovery and Biomedical Sciences and Public Health, Colleges of Pharmacy and Medicine, Hollings Cancer CenterMedical University of South CarolinaCharlestonSCUSA
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3
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Shi J. Early 2-Factor Transcription Factors Associated with Progression and Recurrence in Bevacizumab-Responsive Subtypes of Glioblastoma. Cancers (Basel) 2024; 16:2536. [PMID: 39061176 PMCID: PMC11275000 DOI: 10.3390/cancers16142536] [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: 06/16/2024] [Revised: 07/08/2024] [Accepted: 07/10/2024] [Indexed: 07/28/2024] Open
Abstract
The early 2-factor (E2F) family of transcription factors, including E2F1 through 8, plays a critical role in apoptosis, metabolism, proliferation, and angiogenesis within glioblastoma (GBM). However, the specific functions of E2F transcription factors (E2Fs) and their impact on the malignancy of Bevacizumab (BVZ)-responsive GBM subtypes remain unclear. This study used data from The Cancer Genome Atlas (TCGA), Chinese Glioma Genome Atlas (CGGA), European Molecular Biology Laboratory's European Bioinformatics Institute (EMBL-EBI), and Gene Expression Omnibus (GEO) to explore the impact of eight E2F family members on the clinical characteristics of BVZ-responsive GBM subtypes and possible mechanisms of recurrence after BVZ treatment. Using machine learning algorithms, including TreeBagger and deep neural networks, we systematically predicted and validated GBM patient survival terms based on the expression profiles of E2Fs across BVZ-responsive GBM subtypes. Our bioinformatics analyses suggested that a significant increase in E2F8 post-BVZ treatment may enhance the function of angiogenesis and stem cell proliferation, implicating this factor as a candidate mechanism of GBM recurrence after treatment. In addition, BVZ treatment in unresponsive GBM patients may potentially worsen disease progression. These insights underscore that E2F family members play important roles in GBM malignancy and BVZ treatment response, highlighting their potential as prognostic biomarkers, therapeutic targets, and recommending precision BVZ treatment to individual GBM patients.
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Affiliation(s)
- Jian Shi
- Department of Neurology, San Francisco Veterans Affairs Health Care System and University of California, San Francisco, CA 94121, USA
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4
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Lee DY, Chun JN, Cho M, So I, Jeon JH. Emerging role of E2F8 in human cancer. Biochim Biophys Acta Mol Basis Dis 2023; 1869:166745. [PMID: 37164180 DOI: 10.1016/j.bbadis.2023.166745] [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: 11/01/2022] [Revised: 05/01/2023] [Accepted: 05/02/2023] [Indexed: 05/12/2023]
Abstract
E2F8 is a multifaceted transcription factor that plays a crucial role in mediating the hallmarks of cancer, including sustaining proliferative signaling, resisting cell death, and activating invasion and metastasis. Aberrant E2F8 expression is associated with poor clinical outcomes in most human cancers. However, E2F8 also exhibits tumor-suppressing activity; thus, the role of E2F8 in cell-fate determination is unclear. In this review, we highlight the recent progress in understanding the role of E2F8 in human cancers, which will contribute to building a conceptual framework and broadening our knowledge pertaining to E2F8. This review provides insight into future challenges and perspectives regarding the translation of biological knowledge into therapeutic strategies for the treatment of cancer.
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Affiliation(s)
- Da Young Lee
- Department of Physiology and Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jung Nyeo Chun
- Department of Physiology and Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea; Institute of Human-Environment Interface Biology, Seoul National University, Seoul, Republic of Korea
| | - Minsoo Cho
- Independent researcher, Seoul, Republic of Korea
| | - Insuk So
- Department of Physiology and Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea; Institute of Human-Environment Interface Biology, Seoul National University, Seoul, Republic of Korea
| | - Ju-Hong Jeon
- Department of Physiology and Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea; Institute of Human-Environment Interface Biology, Seoul National University, Seoul, Republic of Korea.
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5
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Gugnoni M, Lorenzini E, Faria do Valle I, Remondini D, Castellani G, Torricelli F, Sauta E, Donati B, Ragazzi M, Ghini F, Piana S, Ciarrocchi A, Manzotti G. Adding pieces to the puzzle of differentiated-to-anaplastic thyroid cancer evolution: the oncogene E2F7. Cell Death Dis 2023; 14:99. [PMID: 36765037 PMCID: PMC9918458 DOI: 10.1038/s41419-023-05603-8] [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: 10/10/2022] [Revised: 01/13/2023] [Accepted: 01/17/2023] [Indexed: 02/12/2023]
Abstract
Anaplastic Thyroid Cancer (ATC) is the most aggressive and de-differentiated subtype of thyroid cancer. Many studies hypothesized that ATC derives from Differentiated Thyroid Carcinoma (DTC) through a de-differentiation process triggered by specific molecular events still largely unknown. E2F7 is an atypical member of the E2F family. Known as cell cycle inhibitor and keeper of genomic stability, in specific contexts its function is oncogenic, guiding cancer progression. We performed a meta-analysis on 279 gene expression profiles, from 8 Gene Expression Omnibus patient samples datasets, to explore the causal relationship between DTC and ATC. We defined 3 specific gene signatures describing the evolution from normal thyroid tissue to DTC and ATC and validated them in a cohort of human surgically resected ATCs collected in our Institution. We identified E2F7 as a key player in the DTC-ATC transition and showed in vitro that its down-regulation reduced ATC cells' aggressiveness features. RNA-seq and ChIP-seq profiling allowed the identification of the E2F7 specific gene program, which is mainly related to cell cycle progression and DNA repair ability. Overall, this study identified a signature describing DTC de-differentiation toward ATC subtype and unveiled an E2F7-dependent transcriptional program supporting this process.
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Affiliation(s)
- Mila Gugnoni
- Laboratory of Translational Research, Azienda USL - IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Eugenia Lorenzini
- Laboratory of Translational Research, Azienda USL - IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | | | - Daniel Remondini
- Department of Physics and Astronomy, University of Bologna, Bologna, Italy
| | - Gastone Castellani
- Department of Physics and Astronomy, University of Bologna, Bologna, Italy
| | - Federica Torricelli
- Laboratory of Translational Research, Azienda USL - IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Elisabetta Sauta
- Laboratory of Translational Research, Azienda USL - IRCCS di Reggio Emilia, Reggio Emilia, Italy
- Department of Electrical, Computer and Biomedical Engineering, University of Pavia, Pavia, Italy
| | - Benedetta Donati
- Laboratory of Translational Research, Azienda USL - IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Moira Ragazzi
- Pathology Unit, Department of Oncology and Advanced Technologies, Azienda USL - IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Francesco Ghini
- Laboratory of Translational Research, Azienda USL - IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Simonetta Piana
- Pathology Unit, Department of Oncology and Advanced Technologies, Azienda USL - IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Alessia Ciarrocchi
- Laboratory of Translational Research, Azienda USL - IRCCS di Reggio Emilia, Reggio Emilia, Italy.
| | - Gloria Manzotti
- Laboratory of Translational Research, Azienda USL - IRCCS di Reggio Emilia, Reggio Emilia, Italy.
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6
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Zheng J, Huang J, Xia J, Zhou W, Dai L, Lin S, Gao L, Zou C. Transcription factor E2F8 is a therapeutic target in the basal-like subtype of breast cancer. Front Oncol 2023; 13:1038787. [PMID: 36814821 PMCID: PMC9939474 DOI: 10.3389/fonc.2023.1038787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 01/17/2023] [Indexed: 02/09/2023] Open
Abstract
Introduction Tumorigenesis in breast cancers usually accompanied by the dysregulation of transcription factors (TFs). Abnormal amplification of TFs leads aberrant expression of its downstream target genes. However, breast cancers are heterogeneous disease with different subtypes that have distinguished clinical behaviours, and the identification of prognostic TFs may enable to provide diagnosis and treatment of breast cancer based on subtypes, especially in Basal-like breast cancer. Methods The RNA-sequencing was performed to screen differential TFs in breast cancer subtypes. The GEPIA dataset analysis was used to analyze the genes expression in invasive breast carcinoma. The expression of MYBL2, HOXC13, and E2F8 was verified by qRT-PCR assay in breast cancers. The depiction analysis of co-expressed proteins was revealed using the STRING datasets. The cellular infiltration level analysis by the TISIDB and TIMER databases. The transwell assay was performed to analyze cellular migration and invasion. CCK-8 assay was used to evaluate cellular drug susceptibility for docetaxel treatment. Predicted targeted drugs in breast cancers by GSCA Lite database online. Results Kaplan-Meier plotter suggested that high expression of both E2F8 and MYBL2 in Basal-like subtype had a poor relapse-free survival. Functional enrichment results identified that apoptosis, cell cycle, and hormone ER pathway were represented the crucial regulation pathways by both E2F8 and MYBL2. In the meantime, database analysis indicated that high expression of E2F8 responded to chemotherapy, while those patients of high expression of MYBL2 responded to endocrinotherapy, and a positive correlation between the expression of E2F8 and PD-L1/CTLA4. Our cell line experiments confirmed the importance of E2F8 and MYBL2 in proliferation and chemotherapy sensitivity, possibly, the relationship with PD-L1. Additionally, we also observed that the up-regulation of E2F8 was accompanied with higher enrichments of CD4+ T cells and CD8+ T cells in breast cancers. Conclusion Taken together, our findings elucidated a prospective target in Basal-like breast cancer, providing underlying molecular biomarkers for the development of breast cancer treatment.
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Affiliation(s)
- Jing Zheng
- Department of Ultrasound, The Second Clinical Medical College, Jinan University (Shenzhen People’s Hospital), The First Affiliated Hospital of Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Jingyi Huang
- Department of Clinical Medical Research Center, The First Affiliated Hospital, School of Medicine, Southern University of Science and Technology, Shenzhen, China
| | - Jinquan Xia
- Department of Clinical Medical Research Center, The Second Clinical Medical College, Jinan University (Shenzhen People’s Hospital), The First Affiliated Hospital of Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Wenbin Zhou
- Department of Thyroid and Breast Surgery, Department of General Surgery, The Second Clinical Medical College, Jinan University (Shenzhen People’s Hospital), The First Affiliated Hospital of Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Lingyun Dai
- Department of Clinical Medical Research Center, The Second Clinical Medical College, Jinan University (Shenzhen People’s Hospital), The First Affiliated Hospital of Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Sihang Lin
- Department of Thyroid and Breast Surgery, Department of General Surgery, The Second Clinical Medical College, Jinan University (Shenzhen People’s Hospital), The First Affiliated Hospital of Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Lin Gao
- Department of Clinical Medical Research Center, The Second Clinical Medical College, Jinan University (Shenzhen People’s Hospital), The First Affiliated Hospital of Southern University of Science and Technology, Shenzhen, Guangdong, China,*Correspondence: Lin Gao, ; Chang Zou,
| | - Chang Zou
- Department of Clinical Medical Research Center, The Second Clinical Medical College, Jinan University (Shenzhen People’s Hospital), The First Affiliated Hospital of Southern University of Science and Technology, Shenzhen, Guangdong, China,Shenzhen Public Service Platform on Tumor Precision Medicine and Molecular Diagnosis, Shenzhen, Guangdong, China,School of Life and Health Sciences, The Chinese University of Kong Hong, Shenzhen, Guangdong, China,*Correspondence: Lin Gao, ; Chang Zou,
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7
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Studying the Tumor Microenvironment in Zebrafish. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1329:69-92. [PMID: 34664234 DOI: 10.1007/978-3-030-73119-9_4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The tumor microenvironment significantly contributes to tumor initiation, progression, neo-angiogenesis, and metastasis, and a better understanding of the role of the different cellular players would facilitate the development of novel therapeutic strategies for cancer treatment. Towards this goal, intravital imaging is a powerful method to unravel interaction partners of tumor cells. Among vertebrate model organisms, zebrafish is uniquely suited for in vivo imaging studies. In recent years zebrafish has also become a valuable model in cancer research. In this chapter, we will summarize, how zebrafish has been used to characterize cells of the tumor microenvironment. We will cover both genetically engineered cancer models and xenograft models in zebrafish. The majority of work has been done on the role of innate immune cells and their role during tumor initiation and metastasis, but we will also cover studies focusing on adipocytes, fibroblasts, and endothelial cells. Taken together, we will highlight the versatile use of the zebrafish model for in vivo tumor microenvironment studies.
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8
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Rennhack JP, Andrechek ER. Low E2F2 activity is associated with high genomic instability and PARPi resistance. Sci Rep 2020; 10:17948. [PMID: 33087787 PMCID: PMC7578094 DOI: 10.1038/s41598-020-74877-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 09/28/2020] [Indexed: 12/21/2022] Open
Abstract
The E2F family, classically known for a central role in cell cycle, has a number of emerging roles in cancer including angiogenesis, metabolic reprogramming, metastasis and DNA repair. E2F1 specifically has been shown to be a critical mediator of DNA repair; however, little is known about DNA repair and other E2F family members. Here we present an integrative bioinformatic and high throughput drug screening study to define the role of E2F2 in maintaining genomic integrity in breast cancer. We utilized in vitro E2F2 ChIP-chip and over expression data to identify transcriptional targets of E2F2. This data was integrated with gene expression from E2F2 knockout tumors in an MMTV-Neu background. Finally, this data was compared to human datasets to identify conserved roles of E2F2 in human breast cancer through the TCGA breast cancer, Cancer Cell Line Encyclopedia, and CancerRx datasets. Through these methods we predict that E2F2 transcriptionally regulates mediators of DNA repair. Our gene expression data supports this hypothesis and low E2F2 activity is associated with a highly unstable tumor. In human breast cancer E2F2, status was also correlated with a patient's response to PARP inhibition therapy. Taken together this manuscript defines a novel role of E2F2 in cancer progression beyond cell cycle and could impact patient treatment.
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Affiliation(s)
| | - Eran R Andrechek
- Department of Physiology, Michigan State University, East Lansing, MI, USA.
- Department of Physiology, Michigan State University, 2194 BPS Building, 567 Wilson Road, East Lansing, MI, 48824, USA.
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9
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Targen S, Kaya T, Avci ME, Gunes D, Keskus AG, Konu O. ZenoFishDb v1.1: A Database for Xenotransplantation Studies in Zebrafish. Zebrafish 2020; 17:305-318. [PMID: 32931381 DOI: 10.1089/zeb.2020.1869] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Rapidly accumulating literature has proven feasibility of the zebrafish xenograft models in cancer research. Nevertheless, online databases for searching the current zebrafish xenograft literature are in great demand. Herein, we have developed a manually curated database, called ZenoFishDb v1.1 (https://konulab.shinyapps.io/zenofishdb), based on R Shiny platform aiming to provide searchable information on ever increasing collection of zebrafish studies for cancer cell line transplantation and patient-derived xenografts (PDXs). ZenoFishDb v1.1 user interface contains four modules: DataTable, Visualization, PDX Details, and PDX Charts. The DataTable and Visualization pages represent xenograft study details, including injected cell lines, PDX injections, molecular modifications of cell lines, zebrafish strains, as well as technical aspects of the xenotransplantation procedures in table, bar, and/or pie chart formats. The PDX Details module provides comprehensive information on the patient details in table format and can be searched and visualized. Overall, ZenoFishDb v1.1 enables researchers to effectively search, list, and visualize different technical and biological attributes of zebrafish xenotransplantation studies particularly focusing on the new trends that make use of reporters, RNA interference, overexpression, or mutant gene constructs of transplanted cancer cells, stem cells, and PDXs, as well as distinguished host modifications.
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Affiliation(s)
- Seniye Targen
- Department of Molecular Biology and Genetics, Bilkent University, Ankara, Turkey
| | - Tuğberk Kaya
- Interdisciplinary Program in Neuroscience, Bilkent University, Ankara, Turkey.,Institute of Neuronal Cell Biology, Technical University Munich, Munich, Germany
| | - M Ender Avci
- Izmir Biomedicine and Genome Center, Dokuz Eylul University, Izmir, Turkey
| | - Damla Gunes
- Interdisciplinary Program in Neuroscience, Bilkent University, Ankara, Turkey
| | - Ayse Gokce Keskus
- Interdisciplinary Program in Neuroscience, Bilkent University, Ankara, Turkey
| | - Ozlen Konu
- Department of Molecular Biology and Genetics, Bilkent University, Ankara, Turkey.,Interdisciplinary Program in Neuroscience, Bilkent University, Ankara, Turkey.,UNAM-Institute of Materials Science and Nanotechnology, Bilkent University, Ankara, Turkey
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10
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Wang Y, Pei X, Xu P, Tan Z, Zhu Z, Zhang G, Jiang Z, Deng Z. E2F7, regulated by miR‑30c, inhibits apoptosis and promotes cell cycle of prostate cancer cells. Oncol Rep 2020; 44:849-862. [PMID: 32582990 PMCID: PMC7388350 DOI: 10.3892/or.2020.7659] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 03/10/2020] [Indexed: 01/01/2023] Open
Abstract
Prostate cancer (PCa) remains a leading cause of mortality among men in the United States and Western Europe. The molecular mechanism of PCa pathogenesis has not been fully elucidated. In the present study, the expression profile of E2F transcription factor 7 (E2F7) in PCa was examined using immunohistochemistry and reverse transcription‑quantitative PCR, whilst cell cycle progression and apoptosis were determined using fluorescent cell activated sorting techniques. Cell viability was measured using Cell Counting Kit‑8 in loss‑ and gain‑of‑function studies. Dual‑luciferase reporter assay was used to verify if E2F7 was one of the potential targets of miR‑30c. The staining score of E2F7 of PCa tissues was found to be notably higher compared with that of adjacent normal tissues. Suppression of E2F7 expression in PCa cell lines led to significantly reduced proliferation rates, increased proportion of cells in the G1 phase of the cell cycle and higher apoptotic rates compared with those in negative control groups. Dual‑luciferase reporter assay revealed E2F7 to be one of the binding targets of microRNA (miR)‑30c. In addition, transfection of miR‑30c mimics into PCa cells resulted in reduced cell viability, increased proportion of cells in the G1 phase and higher apoptotic rates. By contrast, transfection with the miR‑30c inhibitor led to lower apoptosis rates of PCa cells compared with negative control groups, whilst E2F7 siRNA co‑transfection reversed stimulatory effects of miR‑30c inhibitors on cell viability. In addition, the expression of cyclin‑dependent kinase inhibitor p21 were found to be upregulated by transfection with either E2F7 siRNA or miR‑30c mimics into PCa cells. In conclusion, the present study suggested that E2F7 may be positively associated with PCa cell proliferation by inhibiting p21, whereas E2F7 is in turn under regulation by miR‑30c. These observations suggest the miR‑30c/E2F7/p21 axis to be a viable therapeutic target for PCa.
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Affiliation(s)
- Ying Wang
- Oncology Department, Shenzhen Hospital, Southern Medical University, Shenzhen, Guangdong 518100, P.R. China
- Oncology Department, The First Affiliated Hospital of Henan University of Science and Technology, Luoyang, Henan 471000, P.R. China
| | - Xiaojuan Pei
- Pathology Department, Shenzhen Hospital, Southern Medical University, Shenzhen, Guangdong 518100, P.R. China
| | - Po Xu
- Emergency Department, The First Affiliated Hospital, Shenzhen University, Shenzhen, Guangdong 518000, P.R. China
| | - Zhibo Tan
- Oncology Department, Shenzhen Hospital, Southern Medical University, Shenzhen, Guangdong 518100, P.R. China
| | - Zhenwei Zhu
- Oncology Department, Shenzhen Hospital, Southern Medical University, Shenzhen, Guangdong 518100, P.R. China
| | - Guangping Zhang
- Oncology Department, The First Affiliated Hospital of Henan University of Science and Technology, Luoyang, Henan 471000, P.R. China
| | - Zeying Jiang
- Oncology Department, Shenzhen Hospital, Southern Medical University, Shenzhen, Guangdong 518100, P.R. China
| | - Zhe Deng
- Emergency Department, The First Affiliated Hospital, Shenzhen University, Shenzhen, Guangdong 518000, P.R. China
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11
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Lü Y, Zhang J, Li L, Li S, Yang Z. Carcinogenesis effects of E2F transcription factor 8 (E2F8) in hepatocellular carcinoma outcomes: an integrated bioinformatic report. Biosci Rep 2020; 40:221956. [PMID: 31990034 PMCID: PMC7012657 DOI: 10.1042/bsr20193212] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 01/14/2020] [Accepted: 01/20/2020] [Indexed: 02/05/2023] Open
Abstract
This report aimed to investigate the carcinogenesis effects of E2F transcription factor 8 (E2F8) in hepatocellular carcinoma (HCC). E2F8 expression level was compared in Gene Expression Omnibus (GEO), The Cancer Genome Atlas (TCGA) and Oncomine. Survival analysis of E2F8 for HCC were conducted in Kaplan-Meier plotter. Correlations of E2F8 and clinico-pathological features were performed in TCGA. Enrichment of interacted and similar genes with E2F8 was evaluated in Gene Set Enrichment Analysis (GSEA) and Metascape. We found that E2F8 was significantly up-regulated in tumor tissues compared with nontumor tissues (all P < 0.01). Moreover, E2F8 was significantly overexpressed in peripheral blood mononuclear cell (PBMC) in HCC patients than that in healthy individuals (P < 0.001). Meta-analysis in Oncomine database confirmed that E2F8 was significantly higher in HCC tumors (P = 4.28E-08). Additionally, E2F8 elevation significantly correlated with overall survival (OS), recurrence-free survival (RFS), disease-specific survival (DSS) and progression-free survival (PFS) in HCC patients (all P < 0.01). E2F8 level was significantly higher in HCC patients with advanced neoplasm histologic grade, American Joint Committee on Cancer (AJCC) stage and α-fetoprotein (AFP) elevation (all P < 0.05). Cox regression model demonstrated that high E2F8 was an independent risk factor for OS and DFS in HCC patients (HR = 2.16, P = 0.003 and HR = 1.64, P = 0.002, respectively). Enrichment analysis revealed that genes interacted/similar with E2F8 were mainly enriched in cell cycle pathways/biological process. Conclusively, up-regulated in tumors, E2F8 might accelerate tumor progression and result in unfavorable outcomes in HCC patients.
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Affiliation(s)
- Ying Lü
- Department of Integrative Medicine, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - Jing Zhang
- Department of Integrative Medicine, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - Lei Li
- Department of Surgery, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - Shun Li
- Department of Laboratory Animal, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
- Correspondence: Shun Li () or Zongguo Yang ()
| | - Zongguo Yang
- Department of Integrative Medicine, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
- Correspondence: Shun Li () or Zongguo Yang ()
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Zhou Y, Yang Y, Liang T, Hu Y, Tang H, Song D, Fang H. The regulatory effect of microRNA-21a-3p on the promotion of telocyte angiogenesis mediated by PI3K (p110α)/AKT/mTOR in LPS induced mice ARDS. J Transl Med 2019; 17:427. [PMID: 31878977 PMCID: PMC6933909 DOI: 10.1186/s12967-019-02168-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 12/04/2019] [Indexed: 02/07/2023] Open
Abstract
Background Telocytes (TCs) are newly identified interstitial cells that participate in tissue protection and repair. The present study investigated the mechanisms underlying the protective effect of TCs in a mouse model of respiratory distress. Methods The mouse model of acute respiratory distress syndrome (ARDS) was established by intratracheal instillation of lipopolysaccharide (LPS). After instillation of TCs culture medium, lung injury was assessed, and angiogenesis markers, including CD31 and endothelial nitric oxide synthase (eNOS), were detected by immunofluorescence. Bioinformatics analysis was used to screen significantly differentially expressed microRNAs (miRNAs) in cultured TCs stimulated with LPS, and the regulation of downstream angiogenesis genes by these miRNAs was analysed and verified. PI3K subunits and pathways were evaluated by using a PI3K p110α inhibitor to study the involved mechanisms. Results In ARDS mice, instillation of TCs culture medium ameliorated LPS-induced inflammation and lung injury and increased the protein levels of CD31 and eNOS in the injured lungs. A total of 7 miRNAs and 1899 mRNAs were differentially regulated in TCs stimulated with LPS. Functional prediction analysis showed that the differentially expressed mRNAs were enriched in angiogenesis-related processes, which were highly correlated with miR-21a-3p. Culture medium from TCs with miR-21a-3p inhibition failed to promote angiogenesis in mouse models of LPS-induced ARDS. In cultured TCs, LPS stimulation upregulated the expression of miR-21a-3p, which further targeted the transcription factor E2F8 and decreased Notch2 protein expression. TCs culture medium enhanced hemangioendothelioma endothelial cells (EOMA cells) proliferation, which was blocked by the miR-21a-3p inhibitor. The PI3K p110α inhibitor decreased vascular endothelial growth factor levels in LPS-stimulated TCs and reversed the enhancing effect of TCs culture medium on EOMA cells proliferation. Conclusions TCs exerted protective effects under inflammatory conditions by promoting angiogenesis via miR-21a-3p. The PI3K p110α subunit and transcriptional factor E2F8 could be involved in this process.
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Affiliation(s)
- Yile Zhou
- Department of Anaesthesiology, Jinshan Hospital, Fudan University, 1508 Longhang Road, Shanghai, 201508, People's Republic of China
| | - Yajie Yang
- Department of Anaesthesiology, Jinshan Hospital, Fudan University, 1508 Longhang Road, Shanghai, 201508, People's Republic of China
| | - Tao Liang
- Department of Anaesthesiology, Jinshan Hospital, Fudan University, 1508 Longhang Road, Shanghai, 201508, People's Republic of China
| | - Yan Hu
- Department of Anaesthesiology, Jinshan Hospital, Fudan University, 1508 Longhang Road, Shanghai, 201508, People's Republic of China.,Department of Anaesthesiology, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, People's Republic of China
| | - Haihong Tang
- Department of Anaesthesiology, Jinshan Hospital, Fudan University, 1508 Longhang Road, Shanghai, 201508, People's Republic of China
| | - Dongli Song
- Zhongshan Hospital Institute for Clinical Science, Shanghai Institute of Clinical Bioinformatics, Shanghai Engineering Research for AI Technology for Cardiopulmonary Diseases, Shanghai Medical College, Fudan University, Shanghai, China.
| | - Hao Fang
- Department of Anaesthesiology, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, People's Republic of China. .,Department of Anaesthesiology, Minhang Branch, Zhongshan Hospital, Fudan University, 170 Xinsong Road, Shanghai, 201199, People's Republic of China.
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Morrell BC, Zhang L, Schütz LF, Perego MC, Maylem ERS, Spicer LJ. Regulation of the transcription factor E2F8 gene expression in bovine ovarian cells. Mol Cell Endocrinol 2019; 498:110572. [PMID: 31493442 DOI: 10.1016/j.mce.2019.110572] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 09/01/2019] [Accepted: 09/03/2019] [Indexed: 12/31/2022]
Abstract
Overexpression of the transcription factor, E2F8, has been associated with ovarian cancer. Objectives of this study were to determine: 1) if E2F8 gene expression in granulosa cells (GC) and theca cells (TC) change with follicular development, and 2) if E2F8 mRNA abundance in TC and GC is hormonally regulated. Using real-time PCR, E2F8 mRNA abundance in GC and TC was greater (P < 0.05) in small than large follicles. FGF9 induced an increase (P < 0.05) in E2F8 mRNA abundance by 1.6- to 7-fold in large-follicle (8-20 mm) TC and GC as well as in small-follicle (1-5 mm) GC. Abundance of E2F8 mRNA in TC was increased (P < 0.05) with FGF2, FGF9 or VEGFA treatments alone in vitro, and concomitant treatment of VEGFA with FGF9 increased (P < 0.05) abundance of E2F8 mRNA above any of the singular treatments; BMP4, WNT3A and LH were without effect. IGF1 amplified the stimulatory effect of FGF9 on E2F8 mRNA abundance by 2.7-fold. Collectively, our studies show for the first time that follicular E2F8 is developmentally and hormonally regulated indicating that E2F8 may be involved in follicular development.
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Affiliation(s)
- Breanne C Morrell
- Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK, 74078, USA
| | - Lingna Zhang
- Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK, 74078, USA
| | - Luis F Schütz
- Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK, 74078, USA
| | - M Chiara Perego
- Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK, 74078, USA
| | - Excel Rio S Maylem
- Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK, 74078, USA
| | - Leon J Spicer
- Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK, 74078, USA.
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Astinfeshan M, Rasmi Y, Kheradmand F, Karimipour M, Rahbarghazi R, Aramwit P, Nasirzadeh M, Daeihassani B, Shirpoor A, Gholinejad Z, Saboory E. Curcumin inhibits angiogenesis in endothelial cells using downregulation of the PI3K/Akt signaling pathway. FOOD BIOSCI 2019. [DOI: 10.1016/j.fbio.2019.04.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Zhou Q, Zhang F, He Z, Zuo MZ. E2F2/5/8 Serve as Potential Prognostic Biomarkers and Targets for Human Ovarian Cancer. Front Oncol 2019; 9:161. [PMID: 30967995 PMCID: PMC6439355 DOI: 10.3389/fonc.2019.00161] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 02/25/2019] [Indexed: 12/21/2022] Open
Abstract
E2Fs are a family of pivotal transcription factors. Accumulative evidence indicates that aberrant expression or activation of E2Fs is a common phenomenon in malignances, and significant associations have been noted between E2Fs and tumorigenesis or progression in a wide range of cancers. However, the expression patterns and exact roles of each E2F contributing to tumorigenesis and progression of ovarian cancer (OC) have not yet been elucidated. In this study, we investigated the distinct expression and prognostic value of E2Fs in patients with OC by analyzing a series of databases, including ONCOMINE, GEPIA, cBioPortal, Metascape, and Kaplan–Meier plotter. The mRNA expression levels of E2F1/3/5/8 were found to be significantly upregulated in patients with OC and were obviously associated with tumor stage for OC. Aberrant expression of E2F2/5/7/8 was found to be associated with the clinical outcomes of patients with OC. These results suggest that E2F2/5/8 might serve as potential prognostic biomarkers and targets for OC. However, future studies are required to validate our findings and promote the clinical utility of E2Fs in OC.
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Affiliation(s)
- Quan Zhou
- Department of Gynecology and Obstetrics, The People's Hospital of China Three Gorges University/The First People's Hospital of Yichang, Yichang, China
| | - Fan Zhang
- Department of Gynecology and Obstetrics, The People's Hospital of China Three Gorges University/The First People's Hospital of Yichang, Yichang, China
| | - Ze He
- Department of Gynecology and Obstetrics, The People's Hospital of China Three Gorges University/The First People's Hospital of Yichang, Yichang, China
| | - Man-Zhen Zuo
- Department of Gynecology and Obstetrics, The People's Hospital of China Three Gorges University/The First People's Hospital of Yichang, Yichang, China
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