1
|
Mishra J, Chakraborty S, Nandi P, Manna S, Baral T, Niharika, Roy A, Mishra P, Patra SK. Epigenetic regulation of androgen dependent and independent prostate cancer. Adv Cancer Res 2024; 161:223-320. [PMID: 39032951 DOI: 10.1016/bs.acr.2024.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/23/2024]
Abstract
Prostate cancer is one of the most common malignancies among men worldwide. Besides genetic alterations, epigenetic modulations including DNA methylation, histone modifications and miRNA mediated alteration of gene expression are the key driving forces for the prostate tumor development and cancer progression. Aberrant expression and/or the activity of the epigenetic modifiers/enzymes, results in aberrant expression of genes involved in DNA repair, cell cycle regulation, cell adhesion, apoptosis, autophagy, tumor suppression and hormone response and thereby disease progression. Altered epigenome is associated with prostate cancer recurrence, progression, aggressiveness and transition from androgen-dependent to androgen-independent phenotype. These epigenetic modifications are reversible and various compounds/drugs targeting the epigenetic enzymes have been developed that are effective in cancer treatment. This chapter focuses on the epigenetic alterations in prostate cancer initiation and progression, listing different epigenetic biomarkers for diagnosis and prognosis of the disease and their potential as therapeutic targets. This chapter also summarizes different epigenetic drugs approved for prostate cancer therapy and the drugs available for clinical trials.
Collapse
Affiliation(s)
- Jagdish Mishra
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha, India
| | - Subhajit Chakraborty
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha, India
| | - Piyasa Nandi
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha, India
| | - Soumen Manna
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha, India
| | - Tirthankar Baral
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha, India
| | - Niharika
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha, India
| | - Ankan Roy
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha, India
| | - Prahallad Mishra
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha, India
| | - Samir Kumar Patra
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha, India.
| |
Collapse
|
2
|
Wilson B, Esmaeili F, Parsons M, Salah W, Su Z, Dutta A. sRNA-Effector: A tool to expedite discovery of small RNA regulators. iScience 2024; 27:109300. [PMID: 38469560 PMCID: PMC10926228 DOI: 10.1016/j.isci.2024.109300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 11/08/2023] [Accepted: 02/16/2024] [Indexed: 03/13/2024] Open
Abstract
microRNAs (miRNAs) are small regulatory RNAs that repress target mRNA transcripts through base pairing. Although the mechanisms of miRNA production and function are clearly established, new insights into miRNA regulation or miRNA-mediated gene silencing are still emerging. In order to facilitate the discovery of miRNA regulators or effectors, we have developed sRNA-Effector, a machine learning algorithm trained on enhanced crosslinking and immunoprecipitation sequencing and RNA sequencing data following knockdown of specific genes. sRNA-Effector can accurately identify known miRNA biogenesis and effector proteins and identifies 9 putative regulators of miRNA function, including serine/threonine kinase STK33, splicing factor SFPQ, and proto-oncogene BMI1. We validated the role of STK33, SFPQ, and BMI1 in miRNA regulation, showing that sRNA-Effector is useful for identifying new players in small RNA biology. sRNA-Effector will be a web tool available for all researchers to identify potential miRNA regulators in any cell line of interest.
Collapse
Affiliation(s)
- Briana Wilson
- Department of Biochemistry and Molecular Genetics, University of Virginia School of Medicine, Charlottesville, VA 22901, USA
| | - Fatemeh Esmaeili
- Department of Genetics, University of Alabama at Birmingham, Birmingham, AL 35233, USA
| | - Matthew Parsons
- Department of Biochemistry and Molecular Genetics, University of Virginia School of Medicine, Charlottesville, VA 22901, USA
| | - Wafa Salah
- Department of Biochemistry and Molecular Genetics, University of Virginia School of Medicine, Charlottesville, VA 22901, USA
| | - Zhangli Su
- Department of Genetics, University of Alabama at Birmingham, Birmingham, AL 35233, USA
| | - Anindya Dutta
- Department of Genetics, University of Alabama at Birmingham, Birmingham, AL 35233, USA
| |
Collapse
|
3
|
Xu LB, Qin YF, Su L, Huang C, Xu Q, Zhang R, Shi XD, Sun R, Chen J, Song Z, Jiang X, Shang L, Xiao G, Kong X, Liu C, Wong PP. Cathepsin-facilitated invasion of BMI1-high hepatocellular carcinoma cells drives bile duct tumor thrombi formation. Nat Commun 2023; 14:7033. [PMID: 37923799 PMCID: PMC10624910 DOI: 10.1038/s41467-023-42930-y] [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: 10/21/2022] [Accepted: 10/26/2023] [Indexed: 11/06/2023] Open
Abstract
Bile duct tumor thrombosis (BDTT) is a complication mostly observed in patients with advanced hepatocellular carcinoma (HCC), causing jaundice and associated with poor clinical outcome. However, its underlying molecular mechanism is unclear. Here, we develop spontaneous preclinical HCC animal models with BDTT to identify the role of BMI1 expressing tumor initiating cells (BMI1high TICs) in inducing BDTT. BMI1 overexpression transforms liver progenitor cells into BMI1high TICs, which possess strong tumorigenicity and increased trans-intrahepatic biliary epithelial migration ability by secreting lysosomal cathepsin B (CTSB). Orthotopic liver implantation of BMI1high TICs into mice generates tumors and triggers CTSB mediated bile duct invasion to form tumor thrombus, while CTSB inhibitor treatment prohibits BDTT and extends mouse survival. Clinically, the elevated serum CTSB level determines BDTT incidence in HCC patients. Mechanistically, BMI1 epigenetically up-regulates CTSB secretion in TICs by repressing miR-218-1-3p expression. These findings identify a potential diagnostic and therapeutic target for HCC patients with BDTT.
Collapse
Affiliation(s)
- Lei-Bo Xu
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA medicine, Sun Yat-sen Memorial Hospital, State Key Laboratory of Oncology in South China, Sun Yat-sen University, Guangzhou, 510120, China
- Medical Research Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
- Guangzhou Key Laboratory of Precise Diagnosis and Treatment of Biliary Tract Cancer, Department of Biliary-Pancreatic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
| | - Yu-Fei Qin
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA medicine, Sun Yat-sen Memorial Hospital, State Key Laboratory of Oncology in South China, Sun Yat-sen University, Guangzhou, 510120, China
- Medical Research Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
- Guangzhou Key Laboratory of Precise Diagnosis and Treatment of Biliary Tract Cancer, Department of Biliary-Pancreatic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
| | - Liangping Su
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA medicine, Sun Yat-sen Memorial Hospital, State Key Laboratory of Oncology in South China, Sun Yat-sen University, Guangzhou, 510120, China
- Medical Research Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
| | - Cheng Huang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA medicine, Sun Yat-sen Memorial Hospital, State Key Laboratory of Oncology in South China, Sun Yat-sen University, Guangzhou, 510120, China
- Medical Research Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
| | - Qiuping Xu
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA medicine, Sun Yat-sen Memorial Hospital, State Key Laboratory of Oncology in South China, Sun Yat-sen University, Guangzhou, 510120, China
- Medical Research Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
| | - Rui Zhang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA medicine, Sun Yat-sen Memorial Hospital, State Key Laboratory of Oncology in South China, Sun Yat-sen University, Guangzhou, 510120, China
- Medical Research Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
- Guangzhou Key Laboratory of Precise Diagnosis and Treatment of Biliary Tract Cancer, Department of Biliary-Pancreatic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
| | - Xiang-De Shi
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA medicine, Sun Yat-sen Memorial Hospital, State Key Laboratory of Oncology in South China, Sun Yat-sen University, Guangzhou, 510120, China
- Medical Research Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
- Guangzhou Key Laboratory of Precise Diagnosis and Treatment of Biliary Tract Cancer, Department of Biliary-Pancreatic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
| | - Ruipu Sun
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA medicine, Sun Yat-sen Memorial Hospital, State Key Laboratory of Oncology in South China, Sun Yat-sen University, Guangzhou, 510120, China
- Medical Research Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
| | - Jiali Chen
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA medicine, Sun Yat-sen Memorial Hospital, State Key Laboratory of Oncology in South China, Sun Yat-sen University, Guangzhou, 510120, China
- Medical Research Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
| | - Zhixiao Song
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA medicine, Sun Yat-sen Memorial Hospital, State Key Laboratory of Oncology in South China, Sun Yat-sen University, Guangzhou, 510120, China
- Medical Research Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
- Guangzhou Key Laboratory of Precise Diagnosis and Treatment of Biliary Tract Cancer, Department of Biliary-Pancreatic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
| | - Xue Jiang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA medicine, Sun Yat-sen Memorial Hospital, State Key Laboratory of Oncology in South China, Sun Yat-sen University, Guangzhou, 510120, China
- Medical Research Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
| | - Lihuan Shang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA medicine, Sun Yat-sen Memorial Hospital, State Key Laboratory of Oncology in South China, Sun Yat-sen University, Guangzhou, 510120, China
- Medical Research Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
| | - Gang Xiao
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA medicine, Sun Yat-sen Memorial Hospital, State Key Laboratory of Oncology in South China, Sun Yat-sen University, Guangzhou, 510120, China
- Medical Research Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
- Guangzhou Key Laboratory of Precise Diagnosis and Treatment of Biliary Tract Cancer, Department of Biliary-Pancreatic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
| | - Xiangzhan Kong
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA medicine, Sun Yat-sen Memorial Hospital, State Key Laboratory of Oncology in South China, Sun Yat-sen University, Guangzhou, 510120, China
- Medical Research Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
| | - Chao Liu
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA medicine, Sun Yat-sen Memorial Hospital, State Key Laboratory of Oncology in South China, Sun Yat-sen University, Guangzhou, 510120, China.
- Medical Research Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China.
- Guangzhou Key Laboratory of Precise Diagnosis and Treatment of Biliary Tract Cancer, Department of Biliary-Pancreatic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China.
| | - Ping-Pui Wong
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA medicine, Sun Yat-sen Memorial Hospital, State Key Laboratory of Oncology in South China, Sun Yat-sen University, Guangzhou, 510120, China.
- Medical Research Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China.
| |
Collapse
|
4
|
Agarwal S, Afaq F, Bajpai P, Behring M, Kim HG, Varambally A, Chandrashekar DS, Peter S, Al Diffalha S, Khushman M, Seeber A, Varambally S, Manne U. BZW2 Inhibition Reduces Colorectal Cancer Growth and Metastasis. Mol Cancer Res 2023; 21:698-712. [PMID: 37067340 PMCID: PMC10329991 DOI: 10.1158/1541-7786.mcr-23-0003] [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: 01/03/2023] [Revised: 02/06/2023] [Accepted: 03/17/2023] [Indexed: 04/18/2023]
Abstract
Because survival of patients with metastatic colorectal cancer remain poor, there is an urgent need to identify potential novel druggable targets that are associated with colorectal cancer progression. One such target, basic leucine zipper and W2 domains 2 (BZW2), is involved in regulation of protein translation, and its overexpression is associated with human malignancy. Thus, we investigated the expression and regulation of BZW2, assessed its role in activation of WNT/β-catenin signaling, identified its downstream molecules, and demonstrated its involvement in metastasis of colorectal cancer. In human colorectal cancers, high mRNA and protein expression levels of BZW2 were associated with tumor progression. BZW2-knockdown reduced malignant phenotypes, including cell proliferation, invasion, and spheroid and colony formation. BZW2-knockdown also reduced tumor growth and metastasis; conversely, transfection of BZW2 into BZW2 low-expressing colorectal cancer cells promoted malignant features, including tumor growth and metastasis. BZW2 expression was coordinately regulated by microRNA-98, c-Myc, and histone methyltransferase enhancer of zeste homolog 2 (EZH2). RNA sequencing analyses of colorectal cancer cells modulated for BZW2 identified P4HA1 and the long noncoding RNAs, MALAT1 and NEAT1, as its downstream targets. Further, BZW2 activated the Wnt/β-catenin signaling pathway in colorectal cancers expressing wild-type β-catenin. In sum, our study suggests the possibility of targeting BZW2 expression by inhibiting EZH2 and/or c-Myc. IMPLICATIONS FDA-approved small-molecule inhibitors of EZH2 can indirectly target BZW2 and because BZW2 functions as an oncogene, these inhibitors could serve as therapeutic agents for colorectal cancer.
Collapse
Affiliation(s)
- Sumit Agarwal
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL
| | - Farrukh Afaq
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL
| | - Prachi Bajpai
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL
| | - Michael Behring
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL
| | - Hyung-Gyoon Kim
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL
| | | | | | - Shajan Peter
- Department of Medicine, Division of Gastroenterology, University of Alabama at Birmingham, Birmingham, AL
- Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL
| | - Sameer Al Diffalha
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL
- Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL
| | - Moh’d Khushman
- Department of Medicine, Division of Hematology and Oncology, Washington University, St. Louis, MO
| | - Andreas Seeber
- Department of Hematology and Oncology, Comprehensive Cancer Center Innsbruck, Medical University of Innsbruck, Innsbruck, Austria
| | - Sooryanarayana Varambally
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL
- Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL
| | - Upender Manne
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL
- Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL
| |
Collapse
|
5
|
de Mello DC, Saito KC, Cristovão MM, Kimura ET, Fuziwara CS. Modulation of EZH2 Activity Induces an Antitumoral Effect and Cell Redifferentiation in Anaplastic Thyroid Cancer. Int J Mol Sci 2023; 24:ijms24097872. [PMID: 37175580 PMCID: PMC10178714 DOI: 10.3390/ijms24097872] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/14/2023] [Accepted: 04/21/2023] [Indexed: 05/15/2023] Open
Abstract
Anaplastic thyroid cancer (ATC) is a rare and lethal form of thyroid cancer that requires urgent investigation of new molecular targets involved in its aggressive biology. In this context, the overactivation of Polycomb Repressive Complex 2/EZH2, which induces chromatin compaction, is frequently observed in aggressive solid tumors, making the EZH2 methyltransferase a potential target for treatment. However, the deregulation of chromatin accessibility is yet not fully investigated in thyroid cancer. In this study, EZH2 expression was modulated by CRISPR/Cas9-mediated gene editing and pharmacologically inhibited with EZH2 inhibitor EPZ6438 alone or in combination with the MAPK inhibitor U0126. The results showed that CRISPR/Cas9-induced EZH2 gene editing reduced cell growth, migration and invasion in vitro and resulted in a 90% reduction in tumor growth when EZH2-edited cells were injected into an immunocompromised mouse model. Immunohistochemistry analysis of the tumors revealed reduced tumor cell proliferation and less recruitment of cancer-associated fibroblasts in the EZH2-edited tumors compared to the control tumors. Moreover, EZH2 inhibition induced thyroid-differentiation genes' expression and mesenchymal-to-epithelial transition (MET) in ATC cells. Thus, this study shows that targeting EZH2 could be a promising neoadjuvant treatment for ATC, as it promotes antitumoral effects in vitro and in vivo and induces cell differentiation.
Collapse
Affiliation(s)
- Diego Claro de Mello
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo 05508-000, Brazil
| | - Kelly Cristina Saito
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo 05508-000, Brazil
| | - Marcella Maringolo Cristovão
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo 05508-000, Brazil
| | - Edna Teruko Kimura
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo 05508-000, Brazil
| | - Cesar Seigi Fuziwara
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo 05508-000, Brazil
| |
Collapse
|
6
|
Solorzano J, Carrillo-de Santa Pau E, Laguna T, Busturia A. A genome-wide computational approach to define microRNA-Polycomb/trithorax gene regulatory circuits in Drosophila. Dev Biol 2023; 495:63-75. [PMID: 36596335 DOI: 10.1016/j.ydbio.2022.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 12/07/2022] [Accepted: 12/26/2022] [Indexed: 01/02/2023]
Abstract
Characterization of gene regulatory networks is fundamental to understanding homeostatic development. This process can be simplified by analyzing relatively simple genomes such as the genome of Drosophila melanogaster. In this work we have developed a computational framework in Drosophila to explore for the presence of gene regulatory circuits between two large groups of transcriptional regulators: the epigenetic group of the Polycomb/trithorax (PcG/trxG) proteins and the microRNAs (miRNAs). We have searched genome-wide for miRNA targets in PcG/trxG transcripts as well as for Polycomb Response Elements (PREs) in miRNA genes. Our results show that 10% of the analyzed miRNAs could be controlling PcG/trxG gene expression, while 40% of those miRNAs are putatively controlled by the selected set of PcG/trxG proteins. The integration of these analyses has resulted in the predicted existence of 3 classes of miRNA-PcG/trxG crosstalk interactions that define potential regulatory circuits. In the first class, miRNA-PcG circuits are defined by miRNAs that reciprocally crosstalk with PcG. In the second, miRNA-trxG circuits are defined by miRNAs that reciprocally crosstalk with trxG. In the third class, miRNA-PcG/trxG shared circuits are defined by miRNAs that crosstalk with both PcG and trxG regulators. These putative regulatory circuits may uncover a novel mechanism in Drosophila for the control of PcG/trxG and miRNAs levels of expression. The computational framework developed here for Drosophila melanogaster can serve as a model case for similar analyses in other species. Moreover, our work provides, for the first time, a new and useful resource for the Drosophila community to consult prior to experimental studies investigating the epigenetic regulatory networks of miRNA-PcG/trxG mediated gene expression.
Collapse
Affiliation(s)
- Jacobo Solorzano
- Centro de Biología Molecular Severo Ochoa, CSIC-UAM, Nicolas Cabrera 1, 28049, Madrid, Spain; Centre de Recherches en Cancerologie de Toulouse, 2 Av. Hubert Curien, 31100, Toulouse, France
| | - Enrique Carrillo-de Santa Pau
- Computational Biology Group, Precision Nutrition and Cancer Research Program, IMDEA Food Institute, CEI UAM+CSIC, 28049, Madrid, Spain
| | - Teresa Laguna
- Computational Biology Group, Precision Nutrition and Cancer Research Program, IMDEA Food Institute, CEI UAM+CSIC, 28049, Madrid, Spain.
| | - Ana Busturia
- Centro de Biología Molecular Severo Ochoa, CSIC-UAM, Nicolas Cabrera 1, 28049, Madrid, Spain.
| |
Collapse
|
7
|
Yi Y, Li Y, Chen K, Cao Q. Unveiling the non-canonical functions of EZH2 in prostate cancer. Oncotarget 2023; 14:127-128. [PMID: 36780304 PMCID: PMC9924823 DOI: 10.18632/oncotarget.28357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Indexed: 02/13/2023] Open
Affiliation(s)
| | | | | | - Qi Cao
- Correspondence to:Qi Cao, Department of Urology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA; Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA email:
| |
Collapse
|
8
|
Ghamlouche F, Yehya A, Zeid Y, Fakhereddine H, Fawaz J, Liu YN, Al-Sayegh M, Abou-Kheir W. MicroRNAs as clinical tools for diagnosis, prognosis, and therapy in prostate cancer. Transl Oncol 2023; 28:101613. [PMID: 36608541 PMCID: PMC9827391 DOI: 10.1016/j.tranon.2022.101613] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 12/05/2022] [Accepted: 12/24/2022] [Indexed: 01/06/2023] Open
Abstract
Prostate cancer (PCa) is one of the most commonly diagnosed cancers among men worldwide. Despite the presence of accumulated clinical strategies for PCa management, limited prognostic/sensitive biomarkers are available to follow up on disease occurrence and progression. MicroRNAs (miRNAs) are small non-coding RNAs that control gene expression through post-transcriptional regulation of their complementary target messenger RNA (mRNA). MiRNAs modulate fundamental biological processes and play crucial roles in the pathology of various diseases, including PCa. Multiple evidence proved an aberrant miRNA expression profile in PCa, which is actively involved in the carcinogenic process. The robust and pleiotropic impact of miRNAs on PCa suggests them as potential candidates to help more understand the molecular landscape of the disease, which is likely to provide tools for early diagnosis and prognosis as well as additional therapeutic strategies to manage prostate tumors. Here, we emphasize the most consistently reported dysregulated miRNAs and highlight the contribution of their altered downstream targets with PCa hallmarks. Also, we report the potential effectiveness of using miRNAs as diagnostic/prognostic biomarkers in PCa and the high-throughput profiling technologies that are being used in their detection. Another key aspect to be discussed in this review is the promising implication of miRNAs molecules as therapeutic tools and targets for fighting PCa.
Collapse
Affiliation(s)
- Fatima Ghamlouche
- Department of Anatomy, Cell Biology, and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 1107-2020, Lebanon
| | - Amani Yehya
- Department of Anatomy, Cell Biology, and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 1107-2020, Lebanon
| | - Yousef Zeid
- Department of Anatomy, Cell Biology, and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 1107-2020, Lebanon
| | - Hiam Fakhereddine
- Department of Anatomy, Cell Biology, and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 1107-2020, Lebanon
| | - Jhonny Fawaz
- Department of Anatomy, Cell Biology, and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 1107-2020, Lebanon
| | - Yen-Nien Liu
- International Ph.D. Program in Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan.
| | - Mohamed Al-Sayegh
- Biology Division, New York University Abu Dhabi, Abu Dhabi 2460, United Arab Emirates.
| | - Wassim Abou-Kheir
- Department of Anatomy, Cell Biology, and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 1107-2020, Lebanon.
| |
Collapse
|
9
|
Brock S, Jackson DB, Soldatos TG, Hornischer K, Schäfer A, Diella F, Emmert MY, Hoerstrup SP. Whole patient knowledge modeling of COVID-19 symptomatology reveals common molecular mechanisms. FRONTIERS IN MOLECULAR MEDICINE 2023; 2:1035290. [PMID: 39086962 PMCID: PMC11285600 DOI: 10.3389/fmmed.2022.1035290] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 12/12/2022] [Indexed: 08/02/2024]
Abstract
Infection with SARS-CoV-2 coronavirus causes systemic, multi-faceted COVID-19 disease. However, knowledge connecting its intricate clinical manifestations with molecular mechanisms remains fragmented. Deciphering the molecular basis of COVID-19 at the whole-patient level is paramount to the development of effective therapeutic approaches. With this goal in mind, we followed an iterative, expert-driven process to compile data published prior to and during the early stages of the pandemic into a comprehensive COVID-19 knowledge model. Recent updates to this model have also validated multiple earlier predictions, suggesting the importance of such knowledge frameworks in hypothesis generation and testing. Overall, our findings suggest that SARS-CoV-2 perturbs several specific mechanisms, unleashing a pathogenesis spectrum, ranging from "a perfect storm" triggered by acute hyper-inflammation, to accelerated aging in protracted "long COVID-19" syndromes. In this work, we shortly report on these findings that we share with the community via 1) a synopsis of key evidence associating COVID-19 symptoms and plausible mechanisms, with details presented within 2) the accompanying "COVID-19 Explorer" webserver, developed specifically for this purpose (found at https://covid19.molecularhealth.com). We anticipate that our model will continue to facilitate clinico-molecular insights across organ systems together with hypothesis generation for the testing of potential repurposing drug candidates, new pharmacological targets and clinically relevant biomarkers. Our work suggests that whole patient knowledge models of human disease can potentially expedite the development of new therapeutic strategies and support evidence-driven clinical hypothesis generation and decision making.
Collapse
Affiliation(s)
| | | | - Theodoros G. Soldatos
- Molecular Health GmbH, Heidelberg, Germany
- SRH Hochschule, University of Applied Science, Heidelberg, Germany
| | | | | | | | - Maximilian Y. Emmert
- Institute for Regenerative Medicine, University of Zurich, Zurich, Switzerland
- Wyss Zurich, University of Zurich and ETH Zurich, Zurich, Switzerland
- Department of Cardiothoracic and Vascular Surgery, German Heart Institute Berlin, Berlin, Germany
- Department of Cardiovascular Surgery, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Simon P. Hoerstrup
- Institute for Regenerative Medicine, University of Zurich, Zurich, Switzerland
- Wyss Zurich, University of Zurich and ETH Zurich, Zurich, Switzerland
| |
Collapse
|
10
|
Epidemiologic, Genetic, Pathogenic, Metabolic, Epigenetic Aspects Involved in NASH-HCC: Current Therapeutic Strategies. Cancers (Basel) 2022; 15:cancers15010023. [PMID: PMID: 36612019 PMCID: PMC9818030 DOI: 10.3390/cancers15010023] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/12/2022] [Accepted: 12/14/2022] [Indexed: 12/24/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is the most common primary liver cancer and is the sixth most frequent cancer in the world, being the third cause of cancer-related deaths. Nonalcoholic steatohepatitis (NASH) is characterized by fatty infiltration, oxidative stress and necroinflammation of the liver, with or without fibrosis, which can progress to advanced liver fibrosis, cirrhosis and HCC. Obesity, metabolic syndrome, insulin resistance, and diabetes exacerbates the course of NASH, which elevate the risk of HCC. The growing prevalence of obesity are related with increasing incidence of NASH, which may play a growing role in HCC epidemiology worldwide. In addition, HCC initiation and progression is driven by reprogramming of metabolism, which indicates growing appreciation of metabolism in the pathogenesis of this disease. Although no specific preventive pharmacological treatments have recommended for NASH, dietary restriction and exercise are recommended. This review focuses on the molecular connections between HCC and NASH, including genetic and risk factors, highlighting the metabolic reprogramming and aberrant epigenetic alterations in the development of HCC in NASH. Current therapeutic aspects of NASH/HCC are also reviewed.
Collapse
|
11
|
Urabe F, Yamamoto Y, Kimura T. miRNAs in prostate cancer: Intercellular and extracellular communications. Int J Urol 2022; 29:1429-1438. [PMID: 36122303 DOI: 10.1111/iju.15043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 08/25/2022] [Indexed: 12/23/2022]
Abstract
Prostate cancer is the most prevalent male cancer in Western Europe and North America. Although new drugs were recently approved, clinical challenges such as accurately predicting and screening drug-resistant prostate cancer remain. microRNAs are short noncoding RNA molecules that participate in gene regulation at the post-transcriptional level by targeting messenger RNAs. There is accumulating evidence that intracellular microRNAs play important roles as promoters or inhibitors of prostate cancer progression. Additionally, recent studies showed that microRNAs are encapsulated in extracellular vesicles and shuttled into the extracellular space. Transfer of extracellular microRNAs contributes to intercellular communication between prostate cancer cells and components of the tumor microenvironment, which can promote prostate cancer progression. Furthermore, due to their encapsulation in extracellular vesicles, extracellular microRNAs can be stably present in body fluids which contain high levels of RNase. Thus, circulating microRNAs have great potential as noninvasive diagnostic and prognostic biomarkers for prostate cancer. Here, we summarize the roles of intracellular and extracellular microRNAs in prostate cancer progression and discuss the potential of microRNA-based therapeutics as a novel treatment strategy for prostate cancer.
Collapse
Affiliation(s)
- Fumihiko Urabe
- Department of Urology, The Jikei University School of Medicine, Tokyo, Japan.,Laboratory of Integrative Oncology, National Cancer Center Research Institute, Tokyo, Japan
| | - Yusuke Yamamoto
- Laboratory of Integrative Oncology, National Cancer Center Research Institute, Tokyo, Japan
| | - Takahiro Kimura
- Department of Urology, The Jikei University School of Medicine, Tokyo, Japan
| |
Collapse
|
12
|
Yi Y, Li Y, Li C, Wu L, Zhao D, Li F, Fazli L, Wang R, Wang L, Dong X, Zhao W, Chen K, Cao Q. Methylation-dependent and -independent roles of EZH2 synergize in CDCA8 activation in prostate cancer. Oncogene 2022; 41:1610-1621. [PMID: 35094010 PMCID: PMC9097394 DOI: 10.1038/s41388-022-02208-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 01/06/2022] [Accepted: 01/20/2022] [Indexed: 12/13/2022]
Abstract
Cell division cycle-associated 8 (CDCA8) is a component of chromosomal passenger complex (CPC) that participates in mitotic regulation. Although cancer-related CDCA8 hyperactivation has been widely observed, its molecular mechanism remains elusive. Here, we report that CDCA8 overexpression maintains tumorigenicity and is associated with poor clinical outcome in patients with prostate cancer (PCa). Notably, enhancer of zeste homolog 2 (EZH2) is identified to be responsible for CDCA8 activation in PCa. Genome-wide assays revealed that EZH2-induced H3K27 trimethylation represses let-7b expression and thus protects the let-7b-targeting CDCA8 transcripts. More importantly, EZH2 facilitates the self-activation of E2F1 by recruiting E2F1 to its own promoter region in a methylation-independent manner. The high level of E2F1 further promotes transcription of CDCA8 along with the other CPC subunits. Taken together, our study suggests that EZH2-mediated cell cycle regulation in PCa relies on both its methyltransferase and non-methyltransferase activities.
Collapse
Affiliation(s)
- Yang Yi
- Department of Urology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, TX, 77030, USA
| | - Yanqiang Li
- Basic and Translational Research Division, Department of Cardiology, Boston Children's Hospital, Boston, MA, 02115, USA
- Department of Pediatrics, Harvard Medical School, Boston, MA, 02115, USA
| | - Chao Li
- Department of Urology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, TX, 77030, USA
- Department of Urology, the Third Xiangya Hospital, Central South University, Changsha, 410013, China
| | - Longxiang Wu
- Department of Urology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
- Department of Urology, Xiangya Hospital of Central South University, Changsha, 410008, China
| | - Dongyu Zhao
- Basic and Translational Research Division, Department of Cardiology, Boston Children's Hospital, Boston, MA, 02115, USA
- Department of Pediatrics, Harvard Medical School, Boston, MA, 02115, USA
| | - Fuxi Li
- Key Laboratory of Stem Cells and Tissue Engineering (Sun Yat-Sen University), Ministry of Education, Guangzhou, 510080, China
| | - Ladan Fazli
- Vancouver Prostate Centre, Vancouver General Hospital, Vancouver, BC, V6H 3Z6, Canada
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC, V6H 3Z6, Canada
| | - Rui Wang
- Department of Urology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Long Wang
- Department of Urology, the Third Xiangya Hospital, Central South University, Changsha, 410013, China
| | - Xuesen Dong
- Vancouver Prostate Centre, Vancouver General Hospital, Vancouver, BC, V6H 3Z6, Canada
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC, V6H 3Z6, Canada
| | - Wei Zhao
- Key Laboratory of Stem Cells and Tissue Engineering (Sun Yat-Sen University), Ministry of Education, Guangzhou, 510080, China
| | - Kaifu Chen
- Basic and Translational Research Division, Department of Cardiology, Boston Children's Hospital, Boston, MA, 02115, USA.
- Department of Pediatrics, Harvard Medical School, Boston, MA, 02115, USA.
- Prostate Cancer Program, Dana-Farber Harvard Cancer Center, 450 Brookline Avenue, BP332A, Boston, MA, USA.
| | - Qi Cao
- Department of Urology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA.
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, TX, 77030, USA.
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA.
| |
Collapse
|
13
|
Martinez-Baquero D, Sakhdari A, Mo H, Kim DH, Kanagal-Shamanna R, Li S, Young KH, O'Malley DP, Dogan A, Jain P, Wang ML, McDonnell TJ, Miranda RN, Vega F, Medeiros LJ, Ok CY. EZH2 expression is associated with inferior overall survival in mantle cell lymphoma. Mod Pathol 2021; 34:2183-2191. [PMID: 34376807 PMCID: PMC10563799 DOI: 10.1038/s41379-021-00885-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 07/21/2021] [Accepted: 07/22/2021] [Indexed: 11/09/2022]
Abstract
Enhancer of zeste homolog 2 (EZH2) is a catalytic component of the polycomb repressive complex 2 (PRC2) which reduces gene expression via trimethylation of a lysine residue of histone 3 (H3K27me3). Expression of EZH2 has not been assessed systematically in mantle cell lymphoma (MCL). Expression of EZH2 was assessed by immunohistochemistry in 166 patients with MCL. We also assessed other PRC2 components and H3K27me3. Fifty-seven (38%) of MCL patients were positive for EZH2 using 40% cutoff. EZH2 expression was associated with aggressive histologic variants (65% vs. 29%, p < 0.001), high Ki-67 proliferation rate (median, 72% vs. 19%, p < 0.001), and p53 overexpression (43% vs. 2%, p < 0.001). EZH2 expression did not correlate with expression of other PRC2 components (EED and SUZ12), H3K27me3, MHC-I, and MHC-II. Patients with EZH2 expression (EZH2+) had a poorer overall survival (OS) compared with patients without EZH2 expression (EZH2-) (median OS: 3.9 years versus 9.4 years, respectively, p < 0.001). EZH2 expression also predicted a poorer prognosis in MCL patients with classic histology (median OS, 4.6 years for EZH2+ and 9.6 years for EZH2-negative, respectively, p < 0.001) as well as aggressive histology (median OS, 3.7 years for EZH2+ and 7.9 years for EZH2-negative, respectively, p = 0.046). However, EZH2 expression did not independently correlate with overall survival in a multivariate analysis. Gene expression analysis and pathway enrichment analysis demonstrated a significant enrichment in cell cycle and mitotic transition pathways in MCL with EZH2 expression. EZH2 expression detected by immunohistochemistry is present in 38% of MCL cases and it is associated with high proliferation rate, p53 overexpression, aggressive histologic variants, and poorer OS. Based on gene expression profiling data, EZH2 expression could potentiate cell cycle machinery in MCL. These data suggest that assessment of EZH2 expression could be useful to stratify MCL patients into low- and high-risk groups.
Collapse
Affiliation(s)
- Diana Martinez-Baquero
- Department of Hematopathology, The University of Texas M.D. Anderson Cancer Center, Houston, TX, USA
- Department of Pathology, Faculty of Medicine, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Ali Sakhdari
- Department of Hematopathology, The University of Texas M.D. Anderson Cancer Center, Houston, TX, USA
- Department of Laboratory Medicine and Pathobiology, University Health Network, The University of Toronto, Toronto, ON, Canada
| | - Huan Mo
- Department of Hematopathology, The University of Texas M.D. Anderson Cancer Center, Houston, TX, USA
| | - Do Hwan Kim
- Department of Hematopathology, The University of Texas M.D. Anderson Cancer Center, Houston, TX, USA
| | - Rashmi Kanagal-Shamanna
- Department of Hematopathology, The University of Texas M.D. Anderson Cancer Center, Houston, TX, USA
| | - Shaoying Li
- Department of Hematopathology, The University of Texas M.D. Anderson Cancer Center, Houston, TX, USA
| | - Ken H Young
- Division of Hematopathology and Department of Pathology, Duke University School of Medicine, Durham, NC, USA
| | - Dennis P O'Malley
- Department of Hematopathology, The University of Texas M.D. Anderson Cancer Center, Houston, TX, USA
- NeoGenomics, Aliso Viejo, CA, USA
| | - Ahmet Dogan
- Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Preetesh Jain
- Department of Lymphoma and Myeloma, The University of Texas M.D. Anderson Cancer Center, Houston, TX, USA
| | - Michael L Wang
- Department of Lymphoma and Myeloma, The University of Texas M.D. Anderson Cancer Center, Houston, TX, USA
| | - Timothy J McDonnell
- Department of Hematopathology, The University of Texas M.D. Anderson Cancer Center, Houston, TX, USA
| | - Roberto N Miranda
- Department of Hematopathology, The University of Texas M.D. Anderson Cancer Center, Houston, TX, USA
| | - Francisco Vega
- Department of Hematopathology, The University of Texas M.D. Anderson Cancer Center, Houston, TX, USA
| | - L Jeffrey Medeiros
- Department of Hematopathology, The University of Texas M.D. Anderson Cancer Center, Houston, TX, USA
| | - Chi Young Ok
- Department of Hematopathology, The University of Texas M.D. Anderson Cancer Center, Houston, TX, USA.
| |
Collapse
|
14
|
Li H, Jiang H, Huang Z, Chen Z, Chen N. Prognostic Value of an m 5C RNA Methylation Regulator-Related Signature for Clear Cell Renal Cell Carcinoma. Cancer Manag Res 2021; 13:6673-6687. [PMID: 34471382 PMCID: PMC8404088 DOI: 10.2147/cmar.s323072] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 08/02/2021] [Indexed: 12/27/2022] Open
Abstract
Purpose Clear cell renal cell carcinoma (ccRCC) is highly heterogeneous and is one of the most lethal types of cancer within the urinary system. Aberrant expression of 5-methylcytosine (m5C) RNA methylation regulators has been shown to result in occurrence and progression of tumors. However, the role of these regulators in ccRCC remains unclear. Materials and Methods We extracted RNA sequencing expression data with corresponding clinical information of patients with ccRCC from The Cancer Genome Atlas (TCGA) database. We then compared the expression profiles of m5C RNA methylation regulators between normal and ccRCC tissues, and determined different subtypes through consensus clustering analysis. In addition, we constructed a prognostic signature and evaluated it using a range of bioinformatics approaches. The expression of signature-related genes was subsequently verified in the clinical samples using qRT-PCR. Results We identified 12 differentially expressed m5C RNA methylation regulators between cancer and normal control samples. Two clusters of patients with ccRCC and diverse clinicopathological characteristics and prognoses were then determined through consensus clustering analysis. Functional annotations revealed that m5C RNA regulators were significantly correlated with the ccRCC progression. Moreover, we constructed a four-gene risk score signature (comprised of NOP2, NSUN4, NSUN6, and TET2) and divided the patients with ccRCC into high- and low-risk groups based on the median risk score. The risk score was associated with clinicopathological features and was an independent prognostic indicator of ccRCC. Our stratified analysis results suggest that the signature has high prognostic value. Based on qRT-PCR results, the NOP2 and NSUN4 mRNA expressions were higher and those of NSUN6 and TET2 were lower in ccRCC tissues than in normal tissues. Conclusion Our results demonstrate that m5C RNA methylation regulators may affect ccRCC progression and could be exploited for diagnostic and prognostic purposes.
Collapse
Affiliation(s)
- Hanrong Li
- Department of Extracorporeal Shock Wave Lithotripsy, Meizhou People's Hospital (Huangtang Hospital), Meizhou, Guangdong, People's Republic of China
| | - Huiming Jiang
- Department of Urology, Meizhou People's Hospital (Huangtang Hospital), Meizhou, Guangdong, People's Republic of China
| | - Zhicheng Huang
- Department of Urology, Meizhou People's Hospital (Huangtang Hospital), Meizhou, Guangdong, People's Republic of China
| | - Zhilin Chen
- Department of Urology, Meizhou People's Hospital (Huangtang Hospital), Meizhou, Guangdong, People's Republic of China
| | - Nanhui Chen
- Department of Urology, Meizhou People's Hospital (Huangtang Hospital), Meizhou, Guangdong, People's Republic of China
| |
Collapse
|
15
|
Dong P, Xiong Y, Konno Y, Ihira K, Kobayashi N, Yue J, Watari H. Long non-coding RNA DLEU2 drives EMT and glycolysis in endometrial cancer through HK2 by competitively binding with miR-455 and by modulating the EZH2/miR-181a pathway. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2021; 40:216. [PMID: 34174908 PMCID: PMC8235565 DOI: 10.1186/s13046-021-02018-1] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 06/14/2021] [Indexed: 01/27/2023]
Abstract
Background Epithelial-to-mesenchymal transition (EMT) and aerobic glycolysis are fundamental processes implicated in cancer metastasis. Although increasing evidence demonstrates an association between EMT induction and enhanced aerobic glycolysis in human cancer, the mechanisms linking these two conditions in endometrial cancer (EC) cells remain poorly defined. Methods We characterized the role and molecular mechanism of the glycolytic enzyme hexokinase 2 (HK2) in mediating EMT and glycolysis and investigated how long noncoding RNA DLEU2 contributes to the stimulation of EMT and glycolysis via upregulation of HK2 expression. Results HK2 was highly expressed in EC tissues, and its expression was associated with poor overall survival. Overexpression of HK2 effectively promoted EMT phenotypes and enhanced aerobic glycolysis in EC cells via activating FAK and its downstream ERK1/2 signaling. Moreover, microRNA-455 (miR-455) served as a tumor suppressor by directly interacting with HK2 mRNA and inhibiting its expression. Furthermore, DLEU2 displayed a significantly higher expression in EC tissues, and increased DLEU2 expression was correlated with worse overall survival. DLEU2 acted as an upstream activator for HK2-induced EMT and glycolysis in EC cells through two distinct mechanisms: (i) DLEU2 induced HK2 expression by competitively binding with miR-455, and (ii) DLEU2 also interacted with EZH2 to silence a direct inhibitor of HK2, miR-181a. Conclusions This study identified DLEU2 as an upstream activator of HK2-driven EMT and glycolysis in EC cells and provided significant mechanistic insights for the potential treatment of EC. Supplementary Information The online version contains supplementary material available at 10.1186/s13046-021-02018-1.
Collapse
Affiliation(s)
- Peixin Dong
- Department of Obstetrics and Gynecology, Hokkaido University School of Medicine, Hokkaido University, Sapporo, 0608638, Japan.
| | - Ying Xiong
- Department of Gynecology, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Yosuke Konno
- Department of Obstetrics and Gynecology, Hokkaido University School of Medicine, Hokkaido University, Sapporo, 0608638, Japan.
| | - Kei Ihira
- Department of Obstetrics and Gynecology, Hokkaido University School of Medicine, Hokkaido University, Sapporo, 0608638, Japan
| | - Noriko Kobayashi
- Department of Obstetrics and Gynecology, Hokkaido University School of Medicine, Hokkaido University, Sapporo, 0608638, Japan
| | - Junming Yue
- Department of Pathology and Laboratory Medicine, University of Tennessee Health Science Center, Memphis, TN, 38163, USA.,Center for Cancer Research, University of Tennessee Health Science Center, Memphis, TN, 38163, USA
| | - Hidemichi Watari
- Department of Obstetrics and Gynecology, Hokkaido University School of Medicine, Hokkaido University, Sapporo, 0608638, Japan
| |
Collapse
|
16
|
Shih KW, Chen WC, Chang CH, Tai TE, Wu JC, Huang AC, Liu MC. Non-Muscular Invasive Bladder Cancer: Re-envisioning Therapeutic Journey from Traditional to Regenerative Interventions. Aging Dis 2021; 12:868-885. [PMID: 34094648 PMCID: PMC8139208 DOI: 10.14336/ad.2020.1109] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Accepted: 11/09/2020] [Indexed: 01/01/2023] Open
Abstract
Non-muscular invasive bladder cancer (NMIBC) is one of the most common cancer and major cause of economical and health burden in developed countries. Progression of NMIBC has been characterized as low-grade (Ta) and high grade (carcinoma in situ and T1). The current surgical intervention for NMIBC includes transurethral resection of bladder tumor; however, its recurrence still remains a challenge. The BCG-based immunotherapy is much effective against low-grade NMIBC. BCG increases the influx of T cells at bladder cancer site and inhibits proliferation of bladder cancer cells. The chemotherapy is another traditional approach to address NMIBC by supplementing BCG. Notwithstanding, these current therapeutic measures possess limited efficacy in controlling NMIBC, and do not provide comprehensive long-term relief. Hence, biomaterials and scaffolds seem an effective medium to deliver therapeutic agents for restructuring bladder post-treatment. The regenerative therapies such as stem cells and PRP have also been explored for possible solution to NMIBC. Based on above-mentioned approaches, we have comprehensively analyzed therapeutic journey from traditional to regenerative interventions for the treatment of NMIBC.
Collapse
Affiliation(s)
- Kuan-Wei Shih
- 1Department of Urology, Taipei Medical University Hospital, Taipei 11031, Taiwan
| | - Wei-Chieh Chen
- 1Department of Urology, Taipei Medical University Hospital, Taipei 11031, Taiwan.,2Graduate Institute of Clinical Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan.,3TMU Research Center of Urology and Kidney, Taipei Medical University, Taipei 11031, Taiwan
| | - Ching-Hsin Chang
- 1Department of Urology, Taipei Medical University Hospital, Taipei 11031, Taiwan.,3TMU Research Center of Urology and Kidney, Taipei Medical University, Taipei 11031, Taiwan.,4Institute of Microbiology and Immunology, National Yang-Ming University, Taipei 11031, Taiwan
| | - Ting-En Tai
- 1Department of Urology, Taipei Medical University Hospital, Taipei 11031, Taiwan
| | - Jeng-Cheng Wu
- 1Department of Urology, Taipei Medical University Hospital, Taipei 11031, Taiwan.,3TMU Research Center of Urology and Kidney, Taipei Medical University, Taipei 11031, Taiwan.,5Department of Education, Taipei Medical University Hospital, Taipei 11031, Taiwan.,6Department of Urology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Andy C Huang
- 8Institute of Traditional Medicine, School of Medicine, National Yang-Ming University, Taipei,11221, Taiwan.,9Department of Urology, Department of Surgery, Taipei City Hospital Ren-Ai Branch, Taipei 10629, Taiwan
| | - Ming-Che Liu
- 1Department of Urology, Taipei Medical University Hospital, Taipei 11031, Taiwan.,2Graduate Institute of Clinical Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan.,3TMU Research Center of Urology and Kidney, Taipei Medical University, Taipei 11031, Taiwan.,7Clinical Research Center, Taipei Medical University Hospital, Taipei 11031, Taiwan.,10School of Dental Technology, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan
| |
Collapse
|
17
|
Nie E, Jin X, Miao F, Yu T, Zhi T, Shi Z, Wang Y, Zhang J, Xie M, You Y. TGF-β1 modulates temozolomide resistance in glioblastoma via altered microRNA processing and elevated MGMT. Neuro Oncol 2021; 23:435-446. [PMID: 32813021 PMCID: PMC7992894 DOI: 10.1093/neuonc/noaa198] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Background Our previous studies have indicated that miR-198 reduces cellular methylguanine DNA methyltransferase (MGMT) levels to enhance temozolomide sensitivity. Transforming growth factor beta 1 (TGF-β1) switches off miR-198 expression by repressing K-homology splicing regulatory protein (KSRP) expression in epidermal keratinocytes. However, the underlying role of TGF-β1 in temozolomide resistance has remained unknown. Methods The distribution of KSRP was detected by western blotting and immunofluorescence. Microarray analysis was used to compare the levels of long noncoding RNAs (lncRNAs) between TGF-β1–treated and untreated cells. RNA immunoprecipitation was performed to verify the relationship between RNAs and KSRP. Flow cytometry and orthotopic and subcutaneous xenograft tumor models were used to determine the function of TGF-β1 in temozolomide resistance. Results Overexpression of TGF-β1 contributed to temozolomide resistance in MGMT promoter hypomethylated glioblastoma cells in vitro and in vivo. TGF-β1 treatment reduced cellular MGMT levels through suppressing the expression of miR-198. However, TGF-β1 upregulation did not affect KSRP expression in glioma cells. We identified and characterized 2 lncRNAs (H19 and HOXD-AS2) that were upregulated by TGF-β1 through Smad signaling. H19 and HOXD-AS2 exhibited competitive binding to KSRP and prevented KSRP from binding to primary miR-198, thus decreasing miR-198 expression. HOXD-AS2 or H19 upregulation strongly promoted temozolomide resistance and MGMT expression. Moreover, KSRP depletion abrogated the effects of TGF-β1 and lncRNAs on miR-198 and MGMT. Finally, we found that patients with low levels of TGF-β1 or lncRNA expression benefited from temozolomide therapy. Conclusions Our results reveal an underlying mechanism by which TGF-β1 confers temozolomide resistance. Furthermore, our findings suggest that a novel combination of temozolomide with a TGF-β inhibitor may serve as an effective therapy for glioblastomas.
Collapse
Affiliation(s)
- Er Nie
- Department of Neurosurgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu Province, PR China
| | - Xin Jin
- Department of Medicine, Nanjing Gaochun People's Hospital, Nanjing, Jiangsu Province, PR China
| | - Faan Miao
- Department of Neurosurgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu Province, PR China
| | - Tianfu Yu
- Department of Neurosurgery, The Affiliated Drum Tower Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu Province, PR China
| | - Tongle Zhi
- Department of Neurosurgery, Yancheng City No. 1 People's Hospital, The 4th Affiliated Hospital of Nantong University, Yancheng, Jiangsu Province, PR China
| | - Zhumei Shi
- Department of Neurosurgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, PR China
| | - Yingyi Wang
- Department of Neurosurgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, PR China
| | - Junxia Zhang
- Department of Neurosurgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, PR China
| | - Manyi Xie
- Department of Neurosurgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu Province, PR China
| | - Yongping You
- Department of Neurosurgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, PR China
| |
Collapse
|
18
|
Zhang H, Laux A, Stenmark KR, Hu CJ. Mechanisms Contributing to the Dysregulation of miRNA-124 in Pulmonary Hypertension. Int J Mol Sci 2021; 22:ijms22083852. [PMID: 33917769 PMCID: PMC8068139 DOI: 10.3390/ijms22083852] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/06/2021] [Accepted: 04/06/2021] [Indexed: 12/19/2022] Open
Abstract
Chronic pulmonary hypertension (PH) is a fatal disease characterized by the persistent activation of pulmonary vascular cells that exhibit aberrant expression of genes including miRNAs. We and others reported that decreased levels of mature microRNA-124 (miR-124) plays an important role in modulating the activated phenotype of pulmonary vascular cells and HDAC inhibitors (HDACi) can restore the levels of mature miR-124 and reverse the persistently activated phenotype of PH vascular cells. In this study, we sought to determine the mechanisms contributing to reduced levels of miRNAs, as well as how HDACi restores the levels of reduced miRNA in PH vascular cells. We found that pulmonary artery fibroblasts isolated from IPAH patients (PH-Fibs) exhibit reduced levels of mature miR-124 and several other miRNAs including let-7i, miR-224, and miR-210, and that these reduced levels can be restored by HDACi. Using miR-124 expression in human PH-Fibs as a model, we determined that reduced miR-124 gene transcription, not decreased expression of miRNA processing genes, is responsible for reduced levels of mature miR-124 in human PH-Fibs. Using both DNase I Sensitivity and chromatin immunoprecipitation assays, we found that the miR-124-1 gene exhibits a more condensed chromatin structure in human PH-Fibs, compared to corresponding controls. HDACi relaxed miR-124-1 chromatin structure, evidenced by increased levels of the open chromatin mark H3K27Ac, but decreased levels of closed chromatin mark H3K27Me3. Most importantly, the delivery of histone acetyltransferase (HAT) via CRISPR-dCas9-HAT and guiding RNAs to the promoter of the miR-124-1 gene increased miR-124-1 gene transcription. Thus, our data indicate epigenetic events play important role in controlling miR-124 and likely other miRNA levels and epigenetic regulators such as HDACs appear to be promising therapeutic targets for chronic PH.
Collapse
Affiliation(s)
- Hui Zhang
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; (H.Z.); (K.R.S.)
| | - Aya Laux
- Department of Craniofacial Biology, School of Dental Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA;
| | - Kurt R. Stenmark
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; (H.Z.); (K.R.S.)
| | - Cheng-Jun Hu
- Department of Craniofacial Biology, School of Dental Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA;
- Correspondence: ; Tel.: +1-303-724-4576; Fax: +1-303-724-4580
| |
Collapse
|
19
|
Konoshenko MY, Laktionov PP. MiRNAs and radical prostatectomy: Current data, bioinformatic analysis and utility as predictors of tumour relapse. Andrology 2021; 9:1092-1107. [PMID: 33638886 DOI: 10.1111/andr.12994] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 02/20/2021] [Accepted: 02/25/2021] [Indexed: 12/19/2022]
Abstract
BACKGROUND Studies of microRNAs (miRNAs) and genes have particular interest for cancer biology and medicine due to the discovery of new therapeutic targets and markers. These studies are extensively influenced by anticancer therapy, as miRNAs interfere with the therapy's efficacy in prostate cancer (PCa). OBJECTIVES In this article, we summarise the available data on the influence of radical prostatectomy (RP) and biochemical recurrence on miRNA expression. MATERIALS AND METHODS Molecular targets of these miRNAs, as well as the reciprocal relations between different miRNAs and their targets, were studied using the DIANA, STRING and TransmiR databases. Special attention was dedicated to the mechanisms of PCa development, miRNA, and associated genes as tumour development mediators. RESULTS AND DISCUSSION Combined analysis of the databases and available literature indicates that expression of four miRNAs that are associated with prostate cancer relapse and alter their expression after RP, combined with genes that closely interact with selected miRNAs, has high potential for the prediction of PCa relapse after RP. PCa tissues and biofluids, both immediately after RP for diagnostics/prognostics and in long-term (relapse) monitoring, may be used as sources of these miRNAs. CONCLUSION An overview of the usefulness of published data and bioinformatics resources looking for diagnostic markers and molecular targets is presented in this article. The selected miRNA and gene panels have good potential as prognostic and PCa relapse markers after RP and likely could also serve as markers for therapeutic efficiency on a broader scale.
Collapse
Affiliation(s)
- Maria Yu Konoshenko
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
| | - Pavel P Laktionov
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
| |
Collapse
|
20
|
Singh M, Kumar V, Sehrawat N, Yadav M, Chaudhary M, Upadhyay SK, Kumar S, Sharma V, Kumar S, Dilbaghi N, Sharma AK. Current paradigms in epigenetic anticancer therapeutics and future challenges. Semin Cancer Biol 2021; 83:422-440. [PMID: 33766649 DOI: 10.1016/j.semcancer.2021.03.013] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 12/14/2020] [Accepted: 03/16/2021] [Indexed: 12/16/2022]
Abstract
Any alteration at the genetic or epigenetic level, may result in multiplex of diseases including tumorigenesis which ultimately results in the cancer development. Restoration of the normal epigenome by reversing the epigenetic alterations have been reported in tumors paving the way for development of an effective epigenetic treatment in cancer. However, delineating various epigenetic events has been a challenging task so far despite substantial progress in understanding DNA methylation and histone modifications during transcription of genes. Many inhibitors in the form of epigenetic drugs mostly targeting chromatin and histone modifying enzymes including DNA methyltransferase (DNMT) enzyme inhibitors and a histone deacetylases (HDACs) inhibitor, have been in use subsequent to the approval by FDA for cancer treatment. Similarly, other inhibitory drugs, such as FK228, suberoylanilide hydroxamic acid (SAHA) and MS-275, have been successfully tested in clinical studies. Despite all these advancements, still we see a hazy view as far as a promising epigenetic anticancer therapy is concerned. The challenges are to have more specific and effective inhibitors with negligible side effects. Moreover, the alterations seen in tumors are not well understood for which one has to gain deeper insight into the tumor pathology as well. Current review focusses on such epigenetic alterations occurring in cancer and the effective strategies to utilize such alterations for potential therapeutic use and treatment in cancer.
Collapse
Affiliation(s)
- Manoj Singh
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala, 133207, Haryana, India
| | - Vikas Kumar
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala, 133207, Haryana, India
| | - Nirmala Sehrawat
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala, 133207, Haryana, India
| | - Mukesh Yadav
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala, 133207, Haryana, India
| | - Mayank Chaudhary
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala, 133207, Haryana, India
| | - Sushil K Upadhyay
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala, 133207, Haryana, India
| | - Sunil Kumar
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala, 133207, Haryana, India
| | - Varruchi Sharma
- Department of Biotechnology, Sri Guru Gobind Singh College Sector-26, Chandigarh, UT, 160019, India
| | - Sandeep Kumar
- Department of Bio& Nanotechnology, Guru Jambheshwar University of Science & Technology, Hisar, Haryana, 125001, India
| | - Neeraj Dilbaghi
- Department of Bio& Nanotechnology, Guru Jambheshwar University of Science & Technology, Hisar, Haryana, 125001, India
| | - Anil K Sharma
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala, 133207, Haryana, India.
| |
Collapse
|
21
|
Drillis G, Goulielmaki M, Spandidos DA, Aggelaki S, Zoumpourlis V. Non-coding RNAs (miRNAs and lncRNAs) and their roles in lymphogenesis in all types of lymphomas and lymphoid malignancies. Oncol Lett 2021; 21:393. [PMID: 33777216 PMCID: PMC7988683 DOI: 10.3892/ol.2021.12654] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 02/26/2021] [Indexed: 12/16/2022] Open
Abstract
Contemporary developments in molecular biology have been combined with discoveries on the analysis of the role of all non-coding RNAs (ncRNAs) in human diseases, particularly in cancer, by examining their roles in cells. Currently, included among these common types of cancer, are all the lymphomas and lymphoid malignancies, which represent a diverse group of neoplasms and malignant disorders. Initial data suggest that non-coding RNAs, particularly long ncRNAs (lncRNAs), play key roles in oncogenesis and that lncRNA-mediated biology is an important key pathway to cancer progression. Other non-coding RNAs, termed microRNAs (miRNAs or miRs), are very promising cancer molecular biomarkers. They can be detected in tissues, cell lines, biopsy material and all biological fluids, such as blood. With the number of well-characterized cancer-related lncRNAs and miRNAs increasing, the study of the roles of non-coding RNAs in cancer is bringing forth new hypotheses of the biology of cancerous cells. For the first time, to the best of our knowledge, the present review provides an up-to-date summary of the recent literature referring to all diagnosed ncRNAs that mediate the pathogenesis of all types of lymphomas and lymphoid malignancies.
Collapse
Affiliation(s)
- Georgios Drillis
- 1st Internal Medicine Clinic, Medical School, Laiko University Hospital of Athens, 115 27 Athens, Greece
| | - Maria Goulielmaki
- Biomedical Applications Unit, Institute of Chemical Biology, National Hellenic Research Foundation (NHRF), 116 35 Athens, Greece
| | - Demetrios A Spandidos
- Laboratory of Clinical Virology, Medical School, University of Crete, 71003 Heraklion, Greece
| | - Sofia Aggelaki
- Oncology Unit, Medical School, University of Crete, 71003 Heraklion, Greece
| | - Vassilios Zoumpourlis
- Biomedical Applications Unit, Institute of Chemical Biology, National Hellenic Research Foundation (NHRF), 116 35 Athens, Greece
| |
Collapse
|
22
|
Abstract
Accumulating evidence strongly indicates that the presence of cancer stem cells (CSCs) leads to the emergence of worse clinical scenarios, such as chemo- and radiotherapy resistance, metastasis, and cancer recurrence. CSCs are a highly tumorigenic population characterized by self-renewal capacity and differentiation potential. Thus, CSCs establish a hierarchical intratumor organization that enables tumor adaptation to evade the immune response and resist anticancer therapy. YY1 functions as a transcription factor, RNA-binding protein, and 3D chromatin regulator. Thus, YY1 has multiple effects and regulates several molecular processes. Emerging evidence indicates that the development of lethal YY1-mediated cancer phenotypes is associated with the presence of or enrichment in cancer stem-like cells. Therefore, it is necessary to investigate whether and to what extent YY1 regulates the CSC phenotype. Since CSCs mirror the phenotypic behavior of stem cells, we initially describe the roles played by YY1 in embryonic and adult stem cells. Next, we scrutinize evidence supporting the contributions of YY1 in CSCs from a number of various cancer types. Finally, we identify new areas for further investigation into the YY1-CSCs axis, including the participation of YY1 in the CSC niche.
Collapse
|
23
|
EZH2 facilitates BMI1-dependent hepatocarcinogenesis through epigenetically silencing microRNA-200c. Oncogenesis 2020; 9:101. [PMID: 33168810 PMCID: PMC7652937 DOI: 10.1038/s41389-020-00284-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 10/03/2020] [Accepted: 10/21/2020] [Indexed: 12/15/2022] Open
Abstract
EZH2, a histone methyltransferase, has been shown to involve in cancer development and progression via epigenetic regulation of tumor suppressor microRNAs, whereas BMI1, a driver of hepatocellular carcinoma (HCC), is a downstream target of these microRNAs. However, it remains unclear whether EZH2 can epigenetically regulate microRNA expression to modulate BMI1-dependent hepatocarcinogenesis. Here, we established that high EZH2 expression correlated with enhanced tumor size, elevated metastasis, increased relapse, and poor prognosis in HCC patients. Further clinical studies revealed that EZH2 overexpression was positively correlated to its gene copy number gain/amplification in HCC. Mechanistically, EZH2 epigenetically suppressed miR-200c expression both in vitro and in vivo, and more importantly, miR-200c post-transcriptionally regulated BMI1 expression by binding to the 3'-UTR region of its mRNA. Furthermore, miR-200c overexpression inhibits the growth of HCC cells in vivo. Silencing miR-200c rescued the tumorigenicity of EZH2-depleted HCC cells, whereas knocking down BMI1 reduced the promoting effect of miR-200c depletion on HCC cell migration. Finally, combination treatment of EZH2 and BMI1 inhibitors further inhibited the viability of HCC cells compared with the cells treated with EZH2 or BMI1 inhibitor alone. Our findings demonstrated that alteration of EZH2 gene copy number status induced BMI1-mediated hepatocarcinogenesis via epigenetically silencing miR-200c, providing novel therapeutic targets for HCC treatment.
Collapse
|
24
|
Yin H, Wang Y, Wu Y, Zhang X, Zhang X, Liu J, Wang T, Fan J, Sun J, Yang A, Zhang R. EZH2-mediated Epigenetic Silencing of miR-29/miR-30 targets LOXL4 and contributes to Tumorigenesis, Metastasis, and Immune Microenvironment Remodeling in Breast Cancer. Theranostics 2020; 10:8494-8512. [PMID: 32754259 PMCID: PMC7392008 DOI: 10.7150/thno.44849] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 06/21/2020] [Indexed: 12/14/2022] Open
Abstract
Enhancer of Zeste Homolog 2 (EZH2), a key epigenetic regulator, is involved in breast cancer progression and metastasis. LOXL4 is increasingly recognized as an important player in cancer progression. To date, how EZH2 regulates LOXL4 in the progression of breast cancer remains unclear. Methods: We evaluated the association between LOX family proteins and EZH2 in invasive breast carcinoma through the starBase v2.0 analysis, and its correlation with breast tumorigenesis using the Oncomine dataset. We then applied miRcode data combined with gene expression omnibus (GEO) data to screen candidate miRNAs mediating the regulation of LOXL4 by EZH2. We explored the regulatory mechanism of EZH2, miR-29b/miR-30d, and LOXL4 in breast cancer cells by qRT-PCR, Western blotting, cell proliferation, colony formation, and wound healing assays, xenograft experiments, dual-luciferase reporter assay, and chromatin immunoprecipitation. All statistical tests were two-sided. Results: Inhibition of EZH2 or LOXL4, or miR-29b/miR-30d overexpression, decreased breast cancer cell proliferation, migration, and metastasis in vitro and in vivo. LOXL4 was identified as a direct target of miR-29b and miR-30d. EZH2 inhibition enhanced miR-30d and miR-29b transcription via promoter binding activity, leading to the reduced expression of LOXL4. Immunohistochemical analysis of human breast cancer specimens and flow cytometry analysis of tumor-infiltrating macrophages in mice showed a positive association of EZH2 with LOXL4 expression and macrophage infiltration. Conclusions: Our findings identified EZH2-miR-29b/miR-30d-LOXL4 signaling pathway was involved in breast tumorigenesis, and suggested that the epigenetic modulation represents a potential therapeutic target for breast cancer by controlling macrophage activation.
Collapse
|
25
|
Chien YC, Chen JN, Chen YH, Chou RH, Lee HC, Yu YL. Epigenetic Silencing of miR-9 Promotes Migration and Invasion by EZH2 in Glioblastoma Cells. Cancers (Basel) 2020; 12:cancers12071781. [PMID: 32635336 PMCID: PMC7408254 DOI: 10.3390/cancers12071781] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 07/01/2020] [Indexed: 12/14/2022] Open
Abstract
Glioblastoma (GBM) is the most common primary brain tumor in adults. Tumor invasion is the major reason for treatment failure and poor prognosis in GBM. Inhibiting migration and invasion has become an important therapeutic strategy for GBM treatment. Enhancer of zeste homolog 2 (EZH2) and C-X-C motif chemokine receptor 4 (CXCR4) have been determined to have important roles in the occurrence and development of tumors, but the specific relationship between EZH2 and CXCR4 expression in GBM is less well characterized. In this study, we report that EZH2 and CXCR4 were overexpressed in glioma patients. Furthermore, elevated EZH2 and CXCR4 were correlated with shorter disease-free survival. In three human GBM cell lines, EZH2 modulated the expression of miR-9, which directly targeted the oncogenic signaling of CXCR4 in GBM. The ectopic expression of miR-9 dramatically inhibited the migratory capacity of GBM cells in vitro. Taken together, our results indicate that miR-9, functioning as a tumor-suppressive miRNA in GBM, is suppressed through epigenetic silencing by EZH2. Thus, miR-9 may be an attractive target for therapeutic intervention in GBM.
Collapse
Affiliation(s)
- Yi-Chung Chien
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung 404, Taiwan; (Y.-C.C.); (J.-N.C.); (Y.-H.C.); (R.-H.C.)
- Center for Molecular Medicine, China Medical University Hospital, Taichung 404, Taiwan
| | - Jia-Ni Chen
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung 404, Taiwan; (Y.-C.C.); (J.-N.C.); (Y.-H.C.); (R.-H.C.)
- Center for Molecular Medicine, China Medical University Hospital, Taichung 404, Taiwan
| | - Ya-Huey Chen
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung 404, Taiwan; (Y.-C.C.); (J.-N.C.); (Y.-H.C.); (R.-H.C.)
- Center for Molecular Medicine, China Medical University Hospital, Taichung 404, Taiwan
- Drug Development Center, China Medical University, Taichung 404, Taiwan
| | - Ruey-Hwang Chou
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung 404, Taiwan; (Y.-C.C.); (J.-N.C.); (Y.-H.C.); (R.-H.C.)
- Center for Molecular Medicine, China Medical University Hospital, Taichung 404, Taiwan
- Drug Development Center, China Medical University, Taichung 404, Taiwan
- Department of Biotechnology, Asia University, Taichung 413, Taiwan
| | - Han-Chung Lee
- School of Medicine, College of Medicine, China Medical University, Taichung 404, Taiwan
- Department of Neurosurgery, China Medical University Hospital, Taichung 404, Taiwan
- Correspondence: (H.-C.L.); (Y.-L.Y.); Tel.: +886-4-22052121 (ext. 7911) (Y.-L.Y.)
| | - Yung-Luen Yu
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung 404, Taiwan; (Y.-C.C.); (J.-N.C.); (Y.-H.C.); (R.-H.C.)
- Center for Molecular Medicine, China Medical University Hospital, Taichung 404, Taiwan
- Drug Development Center, China Medical University, Taichung 404, Taiwan
- Department of Biotechnology, Asia University, Taichung 413, Taiwan
- Correspondence: (H.-C.L.); (Y.-L.Y.); Tel.: +886-4-22052121 (ext. 7911) (Y.-L.Y.)
| |
Collapse
|
26
|
Liu Q, Li Q, Zhu S, Yi Y, Cao Q. B lymphoma Moloney murine leukemia virus insertion region 1: An oncogenic mediator in prostate cancer. Asian J Androl 2020; 21:224-232. [PMID: 29862993 PMCID: PMC6498728 DOI: 10.4103/aja.aja_38_18] [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] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
B lymphoma Moloney murine leukemia virus insertion region 1 (BMI1), a core member of polycomb repressive complex 1 (PRC1), has been intensely investigated in the field of cancer epigenetics for decades. Widely known as a critical regulator in cellular physiology, BMI1 is essential in self-renewal and differentiation in different lineages of stem cells. BMI1 also plays a significant role in cancer etiology for its involvement in pathological progress such as epithelial–mesenchymal transition (EMT) and cancer stem cell maintenance, propagation, and differentiation. Importantly, overexpression of BMI1 is predictive for drug resistance, tumor recurrence, and eventual therapy failure of various cancer subtypes, which renders the pharmacological targeting at BMI1 as a novel and promising therapeutic approach. The study on prostate cancer, a prevalent hormone-related cancer among men, has promoted enormous research advancements in cancer genetics and epigenetics. This review summarizes the role of BMI1 as an oncogenic and epigenetic regulator in tumor initiation, progression, and relapse of prostate cancer.
Collapse
Affiliation(s)
- Qipeng Liu
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, TX 77030, USA.,Xiangya School of Medicine, Central South University, Changsha 410008, China
| | - Qiaqia Li
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, TX 77030, USA.,Xiangya School of Medicine, Central South University, Changsha 410008, China
| | - Sen Zhu
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Yang Yi
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, TX 77030, USA.,Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-Sen University, Guangzhou 510080, China.,Department of Histology and Embryology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou 510080, China
| | - Qi Cao
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, TX 77030, USA.,Houston Methodist Cancer Center, Houston Methodist Research Institute, Houston, TX 77030, USA.,Department of Microbiology and Immunology, Weill Cornell Medicine, Cornell University, New York, NY 10065, USA
| |
Collapse
|
27
|
Xue L, Yan H, Chen Y, Zhang Q, Xie X, Ding X, Wang X, Qian Z, Xiao F, Song Z, Wu Y, Peng Y, Xu H. EZH2 upregulation by ERα induces proliferation and migration of papillary thyroid carcinoma. BMC Cancer 2019; 19:1094. [PMID: 31718595 PMCID: PMC6852908 DOI: 10.1186/s12885-019-6306-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Accepted: 10/29/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The incidence of papillary thyroid carcinoma (PTC) has been increasing worldwide in recent years. Therefore, novel potential therapeutic targets for PTC are urgently needed. Enhancer of zeste homolog 2 (EZH2), a methyltransferase belonging to PRC2, plays important roles in epigenetic silencing and cell cycle regulation. EZH2 overexpression has been found in several malignant tumor tissues, while its expression and function in PTC are largely unknown. METHODS Sixty-five cases of PTC tissue confirmed by pathology and 30 cases of normal thyroid tissue adjacent to PTC tissue were collected from patients undergoing surgical treatment, between February 2003 and February 2006. We investigated the clinic pathologic significance of EZH2 expression using Realtime-PCR and IHC in 65 human PTC tissues and 30 normal thyroid tissue samples. The EZH2 expression in human PTC cell lines (K1 and W3) and the normal thyroid follicular epithelial cell line Nthy-ori 3-1 was analyzed by Western blotting and Realtime PCR. The expressions of ERα and ERβ in cell lines were analyzed by Realtime PCR.The tumor cell biological behavior was evaluated by CCK8 assay, colony formation assay, transwell migration assay and xenograft tumors model. RESULTS Higher rate of EZH2 expression was found in PTC tissues than in normal thyroid tissues, EZH2 expression is associated with lymph node metastasis and recurrent. Inhibition of EZH2 in PTC cell lines downregulates cellular proliferation and migration. PTC is a disease with high incidence of female and E2-ERα upregulates EZH2 expression. CONCLUSIONS These results suggest a potential role of EZH2 for the PTC growth and metastasis. As a novel therapy, a pharmacological therapy targeting EZH2 has full potential in treatment of PTC.
Collapse
Affiliation(s)
- Liqiong Xue
- Department of Endocrinology and Metabolism, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Department of Oncology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Hongzhu Yan
- Department of Pathology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ying Chen
- Department of Endocrinology and Metabolism, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Qifa Zhang
- Department of Urology, Department of Endocrinology and Metabolism, Shanghai Traditional Chinese Medicine-Integrated hospital, Shanghai university of Traditional Chinese Medicine, Shanghai, China
| | - Xin Xie
- Department of Urology, Department of Endocrinology and Metabolism, Shanghai Traditional Chinese Medicine-Integrated hospital, Shanghai university of Traditional Chinese Medicine, Shanghai, China
| | - Xiaoying Ding
- Department of Endocrinology and Metabolism, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaojing Wang
- Anhui Clinical and Preclinical Key Laboratory of Respiratory Disease, Bengbu Medical College, Bengbu, China
| | - Zhongqing Qian
- Anhui Clinical and Preclinical Key Laboratory of Respiratory Disease, Bengbu Medical College, Bengbu, China
| | - Feng Xiao
- Department of Pathology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Zhiyi Song
- Department of Endocrinology and Metabolism, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yijie Wu
- Department of Endocrinology and Metabolism, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yongde Peng
- Department of Endocrinology and Metabolism, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Huanbai Xu
- Department of Endocrinology and Metabolism, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| |
Collapse
|
28
|
Shivram H, Le SV, Iyer VR. PRC2 activates interferon-stimulated genes indirectly by repressing miRNAs in glioblastoma. PLoS One 2019; 14:e0222435. [PMID: 31513636 PMCID: PMC6742368 DOI: 10.1371/journal.pone.0222435] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 08/30/2019] [Indexed: 12/21/2022] Open
Abstract
Polycomb repressive complex 2 (PRC2) is a chromatin binding complex that represses gene expression by methylating histone H3 at K27 to establish repressed chromatin domains. PRC2 can either regulate genes directly through the methyltransferase activity of its component EZH2 or indirectly by regulating other gene regulators. Gene expression analysis of glioblastoma (GBM) cells lacking EZH2 showed that PRC2 regulates hundreds of interferon-stimulated genes (ISGs). We found that PRC2 directly represses several ISGs and also indirectly activates a distinct set of ISGs. Assessment of EZH2 binding proximal to miRNAs showed that PRC2 directly represses miRNAs encoded in the chromosome 14 imprinted DLK1-DIO3 locus. We found that repression of this locus by PRC2 occurs in immortalized GBM-derived cell lines as well as in primary bulk tumors from GBM and anaplastic astrocytoma patients. Through repression of these miRNAs and several other miRNAs, PRC2 activates a set of ISGs that are targeted by these miRNAs. This PRC2-miRNA-ISG network is likely to be important in regulating gene expression programs in GBM.
Collapse
Affiliation(s)
- Haridha Shivram
- Department of Molecular Biosciences, Institute for Cellular and Molecular Biology, Livestrong Cancer Institutes, University of Texas at Austin, Austin, Texas, United States of America
| | - Steven V. Le
- Department of Molecular Biosciences, Institute for Cellular and Molecular Biology, Livestrong Cancer Institutes, University of Texas at Austin, Austin, Texas, United States of America
| | - Vishwanath R. Iyer
- Department of Molecular Biosciences, Institute for Cellular and Molecular Biology, Livestrong Cancer Institutes, University of Texas at Austin, Austin, Texas, United States of America
- * E-mail:
| |
Collapse
|
29
|
Wang A, Dai H, Gong Y, Zhang C, Shu J, Luo Y, Jiang Y, Liu W, Bie P. ANLN-induced EZH2 upregulation promotes pancreatic cancer progression by mediating miR-218-5p/LASP1 signaling axis. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2019; 38:347. [PMID: 31395079 PMCID: PMC6686567 DOI: 10.1186/s13046-019-1340-7] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 07/24/2019] [Indexed: 12/12/2022]
Abstract
Background Pancreatic cancer is a highly lethal malignancy with poor prognosis. Anillin (ANLN), an actin binding protein, is upregulated and plays an important role in many malignant tumors. However, the precise role of ANLN in pancreatic cancer remains unclear. Methods The expression of ANLN and its association with pancreatic cancer patient survival were analyzed using an online database and confirmed by immunohistochemistry. The ANLN protein expression in pancreatic cancer cell lines was detected by Western blot. Cell proliferation, colony formation and transwell assays in vitro and in vivo tumor growth were used to determine the role of ANLN in pancreatic cancer. Gene expression microarray analysis and a series of in vitro assays were used to elucidate the mechanisms of ANLN regulating pancreatic cancer progression. Results We found that the ANLN expression was significantly upregulated in pancreatic cancer tissues and cell lines. The high expression of ANLN was associated with tumor size, tumor differentiation, TNM stage, lymph node metastasis, distant metastasis and poor prognosis in pancreatic cancer. ANLN downregulation significantly inhibited cell proliferation, colony formation, migration, invasion and tumorigenicity in nude mice. Meanwhile, we found that ANLN knockdown inhibited several cell-cell adhesion related genes, including the gene encoding LIM and SH3 protein 1 (LASP1). LASP1 upregulation partially reversed the tumor-suppressive effect of ANLN downregulation on pancreatic cancer cell progression. Moreover, we found that ANLN downregulation induced the expression of miR-218-5p which inhibited LASP1 expression through binding to its 3’UTR. We also found that ANLN-induced enhancer of zeste homolog 2 (EZH2) upregulation was involved in regulating miR-218-5p/LASP1 signaling axis. EZH2 upregulation or miR-218-5p downregulation partially reversed the tumor-suppressive effect of ANLN downregulation on pancreatic cancer cell progression. Conclusion ANLN contributed to pancreatic cancer progression by regulating EZH2/miR-218-5p/LASP1 signaling axis. These findings suggest that ANLN may be a candidate therapeutic target in pancreatic cancer. Electronic supplementary material The online version of this article (10.1186/s13046-019-1340-7) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Anbin Wang
- Department of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Haisu Dai
- Department of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Yi Gong
- Department of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Chengcheng Zhang
- Department of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Junjie Shu
- Department of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Yuandeng Luo
- Department of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Yan Jiang
- Department of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Wei Liu
- Department of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China.
| | - Ping Bie
- Department of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China.
| |
Collapse
|
30
|
Jiao M, Qi M, Zhang F, Hu J, Feng T, Zhao M, Li X, Liu H, Teng W, Zhang J, Liu Z, Zhang L, Wu Z, Han B. CUL4B regulates cancer stem-like traits of prostate cancer cells by targeting BMI1 via miR200b/c. Prostate 2019; 79:1294-1303. [PMID: 31111526 DOI: 10.1002/pros.23835] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Accepted: 05/03/2019] [Indexed: 01/01/2023]
Abstract
BACKGROUND Cancer stem-like traits contribute to prostate cancer (PCa) progression and metastasis. Cullin 4B (CUL4B) is a member of the ubiquitin E3 ligase family and overexpressed in several solid malignancies including PCa. CUL4B has been suggested to be an oncogene through epigenetic repression of tumor suppressors. However, the link between CUL4B expression and cancer stem-like phenotype remains unclear. METHODS Western blot analysis, sphere formation, and colony formation assays were used to examine the effect of CUL4B on cancer stem-like traits in PCa cells. Mechanically, bioinformatic analysis was utilized to evaluate whether BMI1 was a target of CUL4B. Moreover, real-time polymerase chain reaction, chromatin immunoprecipitation, and luciferase reporter assays were performed to identify microRNAs regulated by CUL4B. Finally, Western blot assay was used to validate the regulation of CUL4B, miR200b, and miR200c (miR200b/c) on the stem-like characteristics of PCa cells. RESULTS CUL4B promotes PCa pluripotency-associated markers expression, sphere formation, and anchorage-independent growth ability in vitro. Mechanically, CUL4B upregulates BMI1 expression via epigenetically repressing miR200b/c expression. In addition, miR200b/c could partially reverse CUL4B-induced BMI1 and pluripotency-associated marker expression. CONCLUSIONS Our study revealed that CUL4B regulates cancer stem-like traits of prostate cancer cells by targeting BMI1 via miR200b/c, which might give novel insight into how CUL4B promotes PCa progression through regulating cancer stem-like traits.
Collapse
Affiliation(s)
- Meng Jiao
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Pathology, School of Basic Medical Sciences, Shandong University, Jinan, China
- Department of Pathology, Second Hospital of Shandong University, Jinan, China
| | - Mei Qi
- Department of Pathology, Shandong University Qilu Hospital, Jinan, China
| | - Facai Zhang
- Department of Urology, The Affiliated Hospital of Guizhou Medical University, Guizhou, China
| | - Jing Hu
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Pathology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Tingting Feng
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Pathology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Mingfeng Zhao
- Department of Pathology, Binzhou Medical University, Binzhou, China
| | - Xinjun Li
- Department of Pathology, Binzhou People's Hospital, Binzhou, China
| | - Hui Liu
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Pathology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Wei Teng
- Education Quality Management Office, Institute of Continuing Education, Shandong University, Jinan, China
| | - Jing Zhang
- Department of Pharmacy, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - Zhiyan Liu
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Pathology, School of Basic Medical Sciences, Shandong University, Jinan, China
- Department of Pathology, Shandong University Qilu Hospital, Jinan, China
| | - Lili Zhang
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Zhen Wu
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Pathology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Bo Han
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Pathology, School of Basic Medical Sciences, Shandong University, Jinan, China
- Department of Pathology, Shandong University Qilu Hospital, Jinan, China
| |
Collapse
|
31
|
Zhao Y, Zhao Q, Kaboli PJ, Shen J, Li M, Wu X, Yin J, Zhang H, Wu Y, Lin L, Zhang L, Wan L, Wen Q, Li X, Cho CH, Yi T, Li J, Xiao Z. m1A Regulated Genes Modulate PI3K/AKT/mTOR and ErbB Pathways in Gastrointestinal Cancer. Transl Oncol 2019; 12:1323-1333. [PMID: 31352195 PMCID: PMC6661385 DOI: 10.1016/j.tranon.2019.06.007] [Citation(s) in RCA: 91] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 06/25/2019] [Accepted: 06/26/2019] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND: Gene expression can be posttranscriptionally regulated by a complex network of proteins. N1-methyladenosine (m1A) is a newly validated RNA modification. However, little is known about both its influence and biogenesis in tumor development. METHODS: This study analyzed TCGA data of patients with five kinds of gastrointestinal (GI) cancers. Using data from cBioPortal, molecular features of the nine known m1A-related enzymes in GI cancers were investigated. Using a variety of bioinformatics approach, the impact of m1A regulators on its downstream signaling pathway was studied. To further confirm this regulation, the effect of m1A writer ALKBH3 knockdown was studied using RNA-seq data from published database. RESULTS: Dysregulation and multiple types of genetic alteration of putative m1A-related enzymes in tumor samples were observed. The ErbB and mTOR pathways with ErbB2, mTOR, and AKT1S1 hub genes were identified as being regulated by m1A-related enzymes. The expression of both ErbB2 and AKT1S1 was decreased after m1A writer ALKBH3 knockdown. Furthermore, Gene Ontology analysis revealed that m1A downstream genes were associated with cell proliferation, and the results showed that m1A genes are reliably linked to mTOR. CONCLUSION: This study demonstrated for the first time the dysregulation of m1A regulators in GI cancer and its signaling pathways and will contribute to the understanding of RNA modification in cancer.
Collapse
Affiliation(s)
- Yueshui Zhao
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, PR China; South Sichuan Institution for Translational Medicine, Luzhou, 646000, Sichuan, PR China
| | - Qijie Zhao
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, PR China; South Sichuan Institution for Translational Medicine, Luzhou, 646000, Sichuan, PR China
| | - Parham Jabbarzadeh Kaboli
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, PR China; South Sichuan Institution for Translational Medicine, Luzhou, 646000, Sichuan, PR China
| | - Jing Shen
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, PR China; South Sichuan Institution for Translational Medicine, Luzhou, 646000, Sichuan, PR China
| | - Mingxing Li
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, PR China; South Sichuan Institution for Translational Medicine, Luzhou, 646000, Sichuan, PR China
| | - Xu Wu
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, PR China; South Sichuan Institution for Translational Medicine, Luzhou, 646000, Sichuan, PR China
| | - Jianhua Yin
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, PR China; South Sichuan Institution for Translational Medicine, Luzhou, 646000, Sichuan, PR China
| | - Hanyu Zhang
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, PR China; South Sichuan Institution for Translational Medicine, Luzhou, 646000, Sichuan, PR China
| | - Yuanlin Wu
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, PR China; South Sichuan Institution for Translational Medicine, Luzhou, 646000, Sichuan, PR China
| | - Ling Lin
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, PR China; South Sichuan Institution for Translational Medicine, Luzhou, 646000, Sichuan, PR China
| | - Lingling Zhang
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, PR China; South Sichuan Institution for Translational Medicine, Luzhou, 646000, Sichuan, PR China
| | - Lin Wan
- Department of Hematology and Oncology, The Children's Hospital of Soochow, Jiangsu, China
| | - Qinglian Wen
- Department of Oncology, The Affiliated Hospital of Luzhou Medical College, Luzhou, Sichuan 646000, PR China
| | - Xiang Li
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, PR China
| | - Chi Hin Cho
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, PR China; South Sichuan Institution for Translational Medicine, Luzhou, 646000, Sichuan, PR China
| | - Tao Yi
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, China
| | - Jing Li
- Department of Oncology and Hematology, Hospital (T.C.M) Affiliated to Southwest Medical University, Luzhou, Sichuan, China.
| | - Zhangang Xiao
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, PR China; South Sichuan Institution for Translational Medicine, Luzhou, 646000, Sichuan, PR China.
| |
Collapse
|
32
|
Vidal M. Polycomb Assemblies Multitask to Regulate Transcription. EPIGENOMES 2019; 3:12. [PMID: 34968234 PMCID: PMC8594731 DOI: 10.3390/epigenomes3020012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 06/14/2019] [Accepted: 06/16/2019] [Indexed: 02/06/2023] Open
Abstract
The Polycomb system is made of an evolutionary ancient group of proteins, present throughout plants and animals. Known initially from developmental studies with the fly Drosophila melanogaster, they were associated with stable sustainment of gene repression and maintenance of cell identity. Acting as multiprotein assemblies with an ability to modify chromatin, through chemical additions to histones and organization of topological domains, they have been involved subsequently in control of developmental transitions and in cell homeostasis. Recent work has unveiled an association of Polycomb components with transcriptionally active loci and the promotion of gene expression, in clear contrast with conventional recognition as repressors. Focusing on mammalian models, I review here advances concerning roles in transcriptional control. Among new findings highlighted is the regulation of their catalytic properties, recruiting to targets, and activities in chromatin organization and compartmentalization. The need for a more integrated approach to the study of the Polycomb system, given its fundamental complexity and its adaptation to cell context, is discussed.
Collapse
Affiliation(s)
- Miguel Vidal
- Department of Cellular and Molecular Biology, Centro de Investigaciones Biológicas, Ramiro de Maeztu 9, 28040 Madrid, Spain
| |
Collapse
|
33
|
Chen Y, Deng X, Chen W, Shi P, Lian M, Wang H, Wang K, Qian D, Xiao D, Long H. Silencing of microRNA-708 promotes cell growth and epithelial-to-mesenchymal transition by activating the SPHK2/AKT/β-catenin pathway in glioma. Cell Death Dis 2019; 10:448. [PMID: 31171769 PMCID: PMC6554356 DOI: 10.1038/s41419-019-1671-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 04/22/2019] [Accepted: 05/19/2019] [Indexed: 02/06/2023]
Abstract
Aberrant microRNA-708 (miR-708) expression is frequently reported in cancer studies; however, its role in glioma has not been examined in detail. We investigated miR-708 function in glioma and revealed that miR-708 expression was significantly down-regulated in glioma tissues and cell lines. Restoration of miR-708 inhibited glioma cell growth and invasion both in vitro and in vivo. The oncogene SPHK2 (sphingosine kinase 2) was identified as a downstream target of miR-708 using luciferase and western blot assays. miR-708 inhibited AKT/β-catenin signaling, which is activated by SPHK2. In addition, we revealed that miR-708 was transcriptionally repressed by EZH2 (enhancer of zeste homolog 2)-induced histone H3 lysine 27 trimethylation and promoter methylation. In summary, our findings revealed that miR-708 is a glioma tumor suppressor and suggest that miR-708 is a potential therapeutic target for glioma patients.
Collapse
Affiliation(s)
- Yan Chen
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Cancer Immunotherapy Research and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University, Guangzhou, China
| | - Xubin Deng
- Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, China
| | | | - Pengwei Shi
- Department of Emergency, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Mei Lian
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy Research and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University, Guangzhou, China
| | - Hongxiao Wang
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Kewan Wang
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Dadi Qian
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Dong Xiao
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy Research and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University, Guangzhou, China.
| | - Hao Long
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, China.
| |
Collapse
|
34
|
MiR-455-5p Suppresses the Progression of Prostate Cancer by Targeting CCR5. BIOMED RESEARCH INTERNATIONAL 2019; 2019:6394784. [PMID: 31111062 PMCID: PMC6487172 DOI: 10.1155/2019/6394784] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 02/14/2019] [Accepted: 02/25/2019] [Indexed: 11/29/2022]
Abstract
Accumulated evidence indicates that miR-455-5p functions as tumor suppressor in the progression of various cancers. However, the mechanism through which miR-455-5p influences the tumorigenesis of human prostate cancer (PCa) remains undetermined. In this study, reanalysis of data obtained from the Memorial Sloan Kettering Cancer Center showed that miR-455-5p can be used as biomarker for PCa diagnosis and predictor of poor prognosis. Functional assays indicated that miR-455-5p overexpression could suppress cellular proliferation, inhibit tumor growth, and trigger apoptosis by activating and cleaving caspase 3. We experimentally verified that miR-455-5p negatively regulated the C–C motif chemokine receptor 5 (CCR5). Overall, our data demonstrate that miR-455-5p suppressed PCa cellular proliferation and induced cell apoptosis by downregulating CCR5. Thus, miR-455-5p may be considered a new therapeutic strategy for PCa.
Collapse
|
35
|
Jones BA, Varambally S, Arend RC. Histone Methyltransferase EZH2: A Therapeutic Target for Ovarian Cancer. Mol Cancer Ther 2019; 17:591-602. [PMID: 29726819 DOI: 10.1158/1535-7163.mct-17-0437] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 09/28/2017] [Accepted: 01/02/2018] [Indexed: 12/18/2022]
Abstract
Ovarian cancer is the fifth leading cause of cancer-related deaths in females in the United States. There were an estimated 22,440 new cases and 14,080 deaths due to ovarian cancer in 2017. Most patients present with advanced-stage disease, revealing the urgent need for new therapeutic strategies targeting pathways of tumorigenesis and chemotherapy resistance. While multiple genomic changes contribute to the progression of this aggressive disease, it has become increasingly evident that epigenetic events play a pivotal role in ovarian cancer development. One of the well-studied epigenetic modifiers, the histone methyltransferase EZH2, is a member of polycomb repressive complex 2 (PRC2) and is commonly involved in transcriptional repression. EZH2 is the enzymatic catalytic subunit of the PRC2 complex that can alter gene expression by trimethylating lysine 27 on histone 3 (H3K27). In ovarian cancer, EZH2 is commonly overexpressed and therefore potentially serves as an effective therapeutic target. Multiple small-molecule inhibitors are being developed to target EZH2, which are now in clinical trials. Thus, in this review, we highlight the progress made in EZH2-related research in ovarian cancer and discuss the potential utility of targeting EZH2 with available small-molecule inhibitors for ovarian cancer. Mol Cancer Ther; 17(3); 591-602. ©2018 AACR.
Collapse
Affiliation(s)
- Bayley A Jones
- University of Alabama at Birmingham School of Medicine, Birmingham, Alabama
| | | | - Rebecca C Arend
- Department of Obstetrics and Gynecology, University of Alabama at Birmingham, Birmingham, Alabama.
| |
Collapse
|
36
|
Paccez JD, Duncan K, Sekar D, Correa RG, Wang Y, Gu X, Bashin M, Chibale K, Libermann TA, Zerbini LF. Dihydroartemisinin inhibits prostate cancer via JARID2/miR-7/miR-34a-dependent downregulation of Axl. Oncogenesis 2019; 8:14. [PMID: 30783079 PMCID: PMC6381097 DOI: 10.1038/s41389-019-0122-6] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Revised: 11/16/2018] [Accepted: 01/28/2019] [Indexed: 01/24/2023] Open
Abstract
Axl expression is deregulated in several cancer types, predicts poor overall patient survival and is linked to resistance to drug therapy. Here, we evaluated a library of natural compounds for inhibitors of Axl and identified dihydroartemisinin, the active principle of the anti-malarial drug artemisinin, as an Axl-inhibitor in prostate cancer. Dihydroartemisinin blocks Axl expression leading to apoptosis, decrease in cell proliferation, migration, and tumor development of prostate cancer cells. Dihydroartemisinin treatment synergizes with docetaxel, a standard of care in metastatic prostate cancer increasing overall survival of mice with human xenografts. Dihydroartemisinin control of miR-34a and miR-7 expression leads to inhibition of Axl expression in a process at least partially dependent on regulation of chromatin via methylation of histone H3 lysine 27 residues by Jumonji, AT-rich interaction domain containing 2 (JARID2), and the enhancer of zeste homolog 2. Our discovery of a previously unidentified miR-34a/miR-7/JARID2 pathway controlling dihydroartemisinin effects on Axl expression and inhibition of cancer cell proliferation, migration, invasion, and tumor formation provides new molecular mechanistic insights into dihydroartemisinin anticancer effect on prostate cancer with potential therapeutic implications.
Collapse
Affiliation(s)
- Juliano D Paccez
- International Centre for Genetic Engineering and Biotechnology (ICGEB), Cape Town, South Africa
- Department of Integrative Biomedical Sciences, University of Cape Town, Cape Town, South Africa
| | - Kristal Duncan
- International Centre for Genetic Engineering and Biotechnology (ICGEB), Cape Town, South Africa
| | - Durairaj Sekar
- International Centre for Genetic Engineering and Biotechnology (ICGEB), Cape Town, South Africa
- Department of Integrative Biomedical Sciences, University of Cape Town, Cape Town, South Africa
| | - Ricardo G Correa
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Yihong Wang
- Department of Pathology and Laboratory Medicine, Warren Alpert School of Medicine, Brown University, Providence, RI, USA
| | - Xuesong Gu
- BIDMC Genomics, Proteomics, Bioinformatics and Systems Biology Center, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - Manoj Bashin
- BIDMC Genomics, Proteomics, Bioinformatics and Systems Biology Center, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - Kelly Chibale
- South African Medical Research Council Drug Discovery and Development Research Unit, Department of Chemistry and Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, South Africa
| | - Towia A Libermann
- BIDMC Genomics, Proteomics, Bioinformatics and Systems Biology Center, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - Luiz F Zerbini
- International Centre for Genetic Engineering and Biotechnology (ICGEB), Cape Town, South Africa.
- Department of Integrative Biomedical Sciences, University of Cape Town, Cape Town, South Africa.
| |
Collapse
|
37
|
Liu Q, Wang G, Li Q, Jiang W, Kim JS, Wang R, Zhu S, Wang X, Yan L, Yi Y, Zhang L, Meng Q, Li C, Zhao D, Qiao Y, Li Y, Gursel DB, Chinnaiyan AM, Chen K, Cao Q. Polycomb group proteins EZH2 and EED directly regulate androgen receptor in advanced prostate cancer. Int J Cancer 2019; 145:415-426. [PMID: 30628724 DOI: 10.1002/ijc.32118] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 12/19/2018] [Indexed: 01/01/2023]
Abstract
Polycomb group proteins are important epigenetic regulators for cell proliferation and differentiation, organ development, as well as initiation and progression of lethal diseases, including cancer. Upregulated Polycomb group proteins, including Enhancer of zeste homolog 2 (EZH2), promote proliferation, migration, invasion and metastasis of cancer cells, as well as self-renewal of cancer stem cells. In our study, we report that EZH2 and embryonic ectoderm development (EED) indicate respective direct interaction with androgen receptor (AR). In the context of AR-positive prostate cancer, EZH2 and EED regulate AR expression levels and AR downstream targets. More importantly, we demonstrate that targeting EZH2 with the small-molecule inhibitor astemizole in cancer significantly represses the EZH2 and AR expression as well as the neoplastic capacities. These results collectively suggest that pharmacologically targeting EZH2 might be a promising strategy for advanced prostate cancer.
Collapse
Affiliation(s)
- Qipeng Liu
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, TX.,Xiangya School of Medicine, Central South University, Changsha, Hunan, China.,Department of Urology, The Second Xiangya Hospital of Central South University, Hunan, China
| | - Guangyu Wang
- Center for Cardiovascular Regeneration, Houston Methodist Research Institute, Houston, TX.,Department of Cardiothoracic Surgery, Weill Cornell Medicine, Cornell University, New York, NY
| | - Qiaqia Li
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, TX.,Xiangya School of Medicine, Central South University, Changsha, Hunan, China.,Department of Urology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Department of Urology, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Weihua Jiang
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, TX
| | - Jung-Sun Kim
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, TX
| | - Rui Wang
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, TX
| | - Sen Zhu
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, TX
| | - Xiaoju Wang
- Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, MI.,Department of Pathology, University of Michigan, Ann Arbor, MI
| | - Lin Yan
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, TX.,Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Yang Yi
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, TX.,Department of Urology, Northwestern University Feinberg School of Medicine, Chicago, IL.,Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-Sen University, Guangzhou, Guangdong, China.,Department of Histology and Embryology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Lili Zhang
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, TX
| | - Qingshu Meng
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, TX.,Department of Urology, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Chao Li
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, TX.,Department of Urology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Department of Urology, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Dongyu Zhao
- Center for Cardiovascular Regeneration, Houston Methodist Research Institute, Houston, TX.,Department of Cardiothoracic Surgery, Weill Cornell Medicine, Cornell University, New York, NY
| | - Yuanyuan Qiao
- Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, MI.,Department of Pathology, University of Michigan, Ann Arbor, MI
| | - Yong Li
- Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, MI.,Department of Pathology, University of Michigan, Ann Arbor, MI
| | - Demirkan B Gursel
- Pathology Core Facility, Robert H. Lurie Comprehensive Cancer Center, Northwestern University, Chicago, IL.,Pathology Department, Feinberg School of Medicine, Northwestern University, Chicago, IL
| | - Arul M Chinnaiyan
- Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, MI.,Department of Pathology, University of Michigan, Ann Arbor, MI.,Howard Hughes Medical Institute, University of Michigan, Ann Arbor, MI.,Department of Urology, University of Michigan, Ann Arbor, MI.,Comprehensive Cancer Center, University of Michigan, Ann Arbor, MI
| | - Kaifu Chen
- Center for Cardiovascular Regeneration, Houston Methodist Research Institute, Houston, TX.,Department of Cardiothoracic Surgery, Weill Cornell Medicine, Cornell University, New York, NY.,Institutes for Academic Medicine, Houston Methodist Hospital, Houston, TX
| | - Qi Cao
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, TX.,Department of Urology, Northwestern University Feinberg School of Medicine, Chicago, IL.,Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL
| |
Collapse
|
38
|
Briem E, Budkova Z, Sigurdardottir AK, Hilmarsdottir B, Kricker J, Timp W, Magnusson MK, Traustadottir GA, Gudjonsson T. MiR-203a is differentially expressed during branching morphogenesis and EMT in breast progenitor cells and is a repressor of peroxidasin. Mech Dev 2019; 155:34-47. [PMID: 30508578 DOI: 10.1016/j.mod.2018.11.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 11/01/2018] [Accepted: 11/23/2018] [Indexed: 12/12/2022]
Abstract
MicroRNAs regulate developmental events such as branching morphogenesis, epithelial to mesenchymal transition (EMT) and its reverse process mesenchymal to epithelial transition (MET). In this study, we performed small RNA sequencing of a breast epithelial progenitor cell line (D492), and its mesenchymal derivative (D492M) cultured in three-dimensional microenvironment. Among the most downregulated miRNAs in D492M was miR-203a, a miRNA that plays an important role in epithelial differentiation. Increased expression of miR-203a was seen in D492, concomitant with increased complexity of branching. When miR-203a was overexpressed in D492M, a partial reversion towards epithelial phenotype was seen. Gene expression analysis of D492M and D492MmiR-203a revealed peroxidasin, a collagen IV cross-linker, as the most significantly downregulated gene in D492MmiR-203a. Collectively, we demonstrate that miR-203a expression temporally correlates with branching morphogenesis and is suppressed in D492M. Overexpression of miR-203a in D492M induces a partial MET and reduces the expression of peroxidasin. Furthermore, we demonstrate that miR-203a is a novel repressor of peroxidasin. MiR-203-peroxidasin axis may be an important regulator in branching morphogenesis, EMT/MET and basement membrane remodeling.
Collapse
Affiliation(s)
- Eirikur Briem
- Stem Cell Research Unit, Biomedical Center, Department of Anatomy, Faculty of Medicine, School of Health Sciences, University of Iceland, Iceland
| | - Zuzana Budkova
- Stem Cell Research Unit, Biomedical Center, Department of Anatomy, Faculty of Medicine, School of Health Sciences, University of Iceland, Iceland
| | - Anna Karen Sigurdardottir
- Stem Cell Research Unit, Biomedical Center, Department of Anatomy, Faculty of Medicine, School of Health Sciences, University of Iceland, Iceland
| | - Bylgja Hilmarsdottir
- Stem Cell Research Unit, Biomedical Center, Department of Anatomy, Faculty of Medicine, School of Health Sciences, University of Iceland, Iceland; Department of Tumor Biology, The Norwegian Radium Hospital, Oslo, Norway
| | - Jennifer Kricker
- Stem Cell Research Unit, Biomedical Center, Department of Anatomy, Faculty of Medicine, School of Health Sciences, University of Iceland, Iceland
| | - Winston Timp
- Department of Biomedical Engineering, Johns Hopkins University, USA
| | - Magnus Karl Magnusson
- Department of Laboratory Hematology, Landspitali - University Hospital, Iceland; Department of Pharmacology and Toxicology, Faculty of Medicine, School of Health Sciences, University of Iceland, Iceland
| | - Gunnhildur Asta Traustadottir
- Stem Cell Research Unit, Biomedical Center, Department of Anatomy, Faculty of Medicine, School of Health Sciences, University of Iceland, Iceland
| | - Thorarinn Gudjonsson
- Stem Cell Research Unit, Biomedical Center, Department of Anatomy, Faculty of Medicine, School of Health Sciences, University of Iceland, Iceland; Department of Laboratory Hematology, Landspitali - University Hospital, Iceland.
| |
Collapse
|
39
|
Bhatia V, Yadav A, Tiwari R, Nigam S, Goel S, Carskadon S, Gupta N, Goel A, Palanisamy N, Ateeq B. Epigenetic Silencing of miRNA-338-5p and miRNA-421 Drives SPINK1-Positive Prostate Cancer. Clin Cancer Res 2018; 25:2755-2768. [PMID: 30587549 DOI: 10.1158/1078-0432.ccr-18-3230] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 11/09/2018] [Accepted: 12/19/2018] [Indexed: 01/03/2023]
Abstract
PURPOSE Serine peptidase inhibitor, Kazal type-1 (SPINK1) overexpression defines the second most recurrent and aggressive prostate cancer subtype. However, the underlying molecular mechanism and pathobiology of SPINK1 in prostate cancer remains largely unknown. EXPERIMENTAL DESIGN miRNA prediction tools were employed to examine the SPINK1-3'UTR for miRNA binding. Luciferase reporter assays were performed to confirm the SPINK1-3'UTR binding of shortlisted miR-338-5p/miR-421. Furthermore, miR-338-5p/-421-overexpressing cancer cells (SPINK1-positive) were evaluated for oncogenic properties using cell-based functional assays and a mouse xenograft model. Global gene expression profiling was performed to unravel the biological pathways altered by miR-338-5p/-421. IHC and RNA in situ hybridization were carried out on prostate cancer patients' tissue microarray for SPINK1 and EZH2 expression, respectively. Chromatin immunoprecipitation assay was performed to examine EZH2 occupancy on the miR-338-5p/-421-regulatory regions. Bisulfite sequencing and methylated DNA immunoprecipitation were performed on prostate cancer cell lines and patients' specimens. RESULTS We established a critical role of miRNA-338-5p/-421 in posttranscriptional regulation of SPINK1. Ectopic expression of miRNA-338-5p/-421 in SPINK1-positive cells abrogates oncogenic properties including cell-cycle progression, stemness, and drug resistance, and shows reduced tumor burden and distant metastases in a mouse model. Importantly, we show that patients with SPINK1-positive prostate cancer exhibit increased EZH2 expression, suggesting its role in epigenetic silencing of miRNA-338-5p/-421. Furthermore, presence of CpG dinucleotide DNA methylation marks on the regulatory regions of miR-338-5p/-421 in SPINK1-positive prostate cancer cells and patients' specimens confirms epigenetic silencing. CONCLUSIONS Our findings revealed that miRNA-338-5p/-421 are epigenetically silenced in SPINK1-positive prostate cancer, although restoring the expression of these miRNAs using epigenetic drugs or synthetic mimics could abrogate SPINK1-mediated oncogenesis.See related commentary by Bjartell, p. 2679.
Collapse
Affiliation(s)
- Vipul Bhatia
- Molecular Oncology Lab, Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, India
| | - Anjali Yadav
- Molecular Oncology Lab, Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, India
| | - Ritika Tiwari
- Molecular Oncology Lab, Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, India
| | - Shivansh Nigam
- Molecular Oncology Lab, Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, India
| | - Sakshi Goel
- Molecular Oncology Lab, Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, India
| | - Shannon Carskadon
- Vattikuti Urology Institute, Department of Urology, Henry Ford Health System, Detroit, Michigan
| | - Nilesh Gupta
- Department of Pathology, Henry Ford Health System, Detroit, Michigan
| | - Apul Goel
- Department of Urology, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Nallasivam Palanisamy
- Vattikuti Urology Institute, Department of Urology, Henry Ford Health System, Detroit, Michigan
| | - Bushra Ateeq
- Molecular Oncology Lab, Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, India.
| |
Collapse
|
40
|
Yang Z, Zhao S, Zhou X, Zhao H, Jiang X. PCAT-1: A pivotal oncogenic long non-coding RNA in human cancers. Biomed Pharmacother 2018; 110:493-499. [PMID: 30530229 DOI: 10.1016/j.biopha.2018.12.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 11/17/2018] [Accepted: 12/02/2018] [Indexed: 12/30/2022] Open
Abstract
Prostate cancer-associated transcript 1 (PCAT-1) is a newly identified long non-coding RNA comprising two exons, located in the Chr8q24 gene desert approximately 725 kb upstream of the MYC oncogene. PCAT-1 is dysregulated and acts as an oncogene in different types of cancers and has been implicated in several processes correlated with carcinogenesis, such as cell proliferation, invasion, metastasis, apoptosis, cell cycle, chemoresistance, and homologous recombination. The mechanisms underlying the effects of PCAT-1 are complex and involve multiple factors and signaling pathways. In this paper, we systematically review the multiple pathological functions of PCAT-1 in diverse malignancies to elucidate its potential molecular mechanisms and to provide new directions for future research.
Collapse
Affiliation(s)
- Zhi Yang
- Department of General Surgery, The Fourth Affiliated Hospital of China Medical University, Shenyang, China
| | - Shan Zhao
- Department of Rheumatology and Immunology, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Xiangyu Zhou
- Department of General Surgery, The Fourth Affiliated Hospital of China Medical University, Shenyang, China
| | - Haiying Zhao
- Department of General Surgery, The Fourth Affiliated Hospital of China Medical University, Shenyang, China.
| | - Xiaofeng Jiang
- Department of General Surgery, The Fourth Affiliated Hospital of China Medical University, Shenyang, China.
| |
Collapse
|
41
|
DeVaux RS, Herschkowitz JI. Beyond DNA: the Role of Epigenetics in the Premalignant Progression of Breast Cancer. J Mammary Gland Biol Neoplasia 2018; 23:223-235. [PMID: 30306389 PMCID: PMC6244889 DOI: 10.1007/s10911-018-9414-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Accepted: 09/18/2018] [Indexed: 12/19/2022] Open
Abstract
Ductal Carcinoma in Situ (DCIS) is an early breast cancer lesion that is considered a nonobligate precursor to development of invasive ductal carcinoma (IDC). Although only a small subset of DCIS lesions are predicted to progress into a breast cancer, distinguishing innocuous from minacious DCIS lesions remains a clinical challenge. Thus, patients diagnosed with DCIS will undergo surgery with the potential for radiation and hormone therapy. This has led to a current state of overdiagnosis and overtreatment. Interrogating the transcriptome alone has yet to define clear functional determinants of progression from DCIS to IDC. Epigenetic changes, critical for imprinting and tissue specific development, in the incorrect context can lead to global signaling rewiring driving pathological phenotypes. Epigenetic signaling pathways, and the molecular players that interpret and sustain their signals, are critical to understanding the underlying pathology of breast cancer progression. The types of epigenetic changes, as well as the molecular players, are expanding. In addition to DNA methylation, histone modifications, and chromatin remodeling, we must also consider enhancers as well as the growing field of noncoding RNAs. Herein we will review the epigenetic interactions that have been uncovered in early stage lesions that impact breast cancer progression, and how these players may be utilized as biomarkers to mitigate overdiagnosis and overtreatment.
Collapse
Affiliation(s)
- Rebecca S DeVaux
- Department of Biomedical Sciences, Cancer Research Center, University at Albany, State University of New York, Rensselaer, NY, USA
| | - Jason I Herschkowitz
- Department of Biomedical Sciences, Cancer Research Center, University at Albany, State University of New York, Rensselaer, NY, USA.
| |
Collapse
|
42
|
Bryzgunova OE, Konoshenko MY, Laktionov PP. MicroRNA-guided gene expression in prostate cancer: Literature and database overview. J Gene Med 2018; 20:e3016. [DOI: 10.1002/jgm.3016] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 03/15/2018] [Accepted: 03/17/2018] [Indexed: 12/16/2022] Open
Affiliation(s)
- Olga E. Bryzgunova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia and ‘E. Meshalkin National Medical Research Center’ of the Ministry of Health of the Russian Federation; Novosibirsk Russia
| | - Maria Yu Konoshenko
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia and ‘E. Meshalkin National Medical Research Center’ of the Ministry of Health of the Russian Federation; Novosibirsk Russia
| | - Pavel P. Laktionov
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia and ‘E. Meshalkin National Medical Research Center’ of the Ministry of Health of the Russian Federation; Novosibirsk Russia
| |
Collapse
|
43
|
Mertens JC, Ilyas SI, Gores GJ. Targeting cholangiocarcinoma. Biochim Biophys Acta Mol Basis Dis 2018; 1864:1454-1460. [PMID: 28844952 PMCID: PMC6013079 DOI: 10.1016/j.bbadis.2017.08.027] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 08/16/2017] [Accepted: 08/21/2017] [Indexed: 02/06/2023]
Abstract
Cholangiocarcinoma (CCA) represents a diverse group of epithelial cancers associated with the biliary tract, and can best be stratified anatomically into intrahepatic (iCCA), perihilar (pCCA) and distal (dCCA) subsets. Molecular profiling has identified genetic aberrations associated with these anatomic subsets. For example, IDH catalytic site mutations and constitutively active FGFR2 fusion genes are predominantly identified in iCCA, whereas KRAS mutations and PRKACB fusions genes are identified in pCCA and dCCA. Clinical trials targeting these specific driver mutations are in progress. However, The Tumor Genome Atlas (TCGA) marker analysis of CCA also highlights the tremendous molecular heterogeneity of this cancer rendering comprehensive employment of targeted therapies challenging. CCA also display a rich tumor microenvironment which may be easier to target. For example, targeting cancer associated fibroblasts for apoptosis with BH3-mimetics and/or and reversing T-cell exhaustion with immune check point inhibitors may help aid in the treatment of this otherwise devastating malignancy. Combinatorial therapy attacking the tumor microenvironment plus targeted therapy may help advance treatment for CCA. This article is part of a Special Issue entitled: Cholangiocytes in Health and Disease edited by Jesus Banales, Marco Marzioni, Nicholas LaRusso and Peter Jansen.
Collapse
Affiliation(s)
- Joachim C Mertens
- Department of Gastroenterology and Hepatology, University Hospital Zürich, Switzerland.
| | - Sumera I Ilyas
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
| | - Gregory J Gores
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
| |
Collapse
|
44
|
Wang Y, Wang M, Wei W, Han D, Chen X, Hu Q, Yu T, Liu N, You Y, Zhang J. Disruption of the EZH2/miRNA/β-catenin signaling suppresses aerobic glycolysis in glioma. Oncotarget 2018; 7:49450-49458. [PMID: 27385092 PMCID: PMC5226520 DOI: 10.18632/oncotarget.10370] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Accepted: 06/12/2016] [Indexed: 12/20/2022] Open
Abstract
EZH2 is up-regulated in various cancer types, implicating its role in tumorigenesis. Our recent data have shown that repression of EZH2 inhibited glioma growth by inhibition β-catenin signaling. Here, we identified several miRNAs that were repressed by EZH2, which in turn regulate β-catenin expression by its 3′UTR, such as miR-1224-3p, miR-328 and miR-214. Further, EZH2 silenced miR-328 expression by binding to miR-328 promoter and promoting methylation of miR-328 promoter. Finally, miR-328 largely abrogated EZH2 effects on β-catenin expression and glucose metabolism in glioma cells. Taken together, we propose a model for a coordinated EZH2-β-catenin oncoprotein axis, and epigenetic link between histone modification and DNA methylation, mediated by EZH2-scilenced miRNAs.
Collapse
Affiliation(s)
- Yingyi Wang
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Min Wang
- Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Wenjin Wei
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Dongfeng Han
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Xincheng Chen
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Qi Hu
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Tianfu Yu
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Ning Liu
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yongping You
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Junxia Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| |
Collapse
|
45
|
Segovia C, Martínez-Fernández M, Dueñas M, Rubio C, López-Calderón FF, Costa C, Saiz-Ladera C, Fernández-Grajera M, Duarte J, Muñoz HG, de la Rosa F, Villacampa F, Castellano D, Paramio JM. Opposing roles of PIK3CA gene alterations to EZH2 signaling in non-muscle invasive bladder cancer. Oncotarget 2018; 8:10531-10542. [PMID: 28060766 PMCID: PMC5354678 DOI: 10.18632/oncotarget.14453] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Accepted: 12/12/2016] [Indexed: 12/03/2022] Open
Abstract
The high rates of tumor recurrence and progression represent a major clinical problem in non-muscle invasive bladder cancer. Previous data showed that EZH2-dependent signaling mediates these processes, whereas the frequent alterations of PIK3CA gene (copy gains and mutations) are predictive of reduced recurrence. Here we show, using clinical samples and bladder cancer cell lines, a functional interaction between EZH2- and PIK3CA-dependent signaling pathways. PIK3CA alterations mediated, on the one hand, the increased expression of two miRNAs, miR-101 and miR-138, which posttranscriptionally downregulate EZH2 expression. On the other hand, PIK3CA alterations facilitate the activation of Akt which phosphorylates EZH2 on Ser21, precluding the trimethylation of histone H3 in K27. Remarkably the increased expression of miR101 or miR138 and the expression of Ser21-phosphorylated EZH2 are good prognostic factors regarding non-muscle invasive bladder cancer recurrence and progression. Collectively, this study provides molecular evidences indicating that the gene expression rewiring occurring in primary bladder tumors, associated with increased EZH2 expression and activity and mediating the increased recurrence and progression risk, are prevented by PIK3CA-dependent signaling. This molecular process may have deep implications in the management of bladder cancer patients and in the design of novel molecularly targeted therapeutic approaches.
Collapse
Affiliation(s)
- Cristina Segovia
- Unidad de Oncología Molecular, CIEMAT (ed70A), Madrid, Spain.,Grupo de Oncología celular y Molecular, Hospital Universitario 12 de Octubre, Madrid, Spain.,Centro de Investigación Biomédica en Red de Cáncer (CIBER ONC), Spain
| | - Mónica Martínez-Fernández
- Unidad de Oncología Molecular, CIEMAT (ed70A), Madrid, Spain.,Grupo de Oncología celular y Molecular, Hospital Universitario 12 de Octubre, Madrid, Spain.,Centro de Investigación Biomédica en Red de Cáncer (CIBER ONC), Spain
| | - Marta Dueñas
- Unidad de Oncología Molecular, CIEMAT (ed70A), Madrid, Spain.,Grupo de Oncología celular y Molecular, Hospital Universitario 12 de Octubre, Madrid, Spain.,Centro de Investigación Biomédica en Red de Cáncer (CIBER ONC), Spain
| | - Carolina Rubio
- Grupo de Oncología celular y Molecular, Hospital Universitario 12 de Octubre, Madrid, Spain.,Centro de Investigación Biomédica en Red de Cáncer (CIBER ONC), Spain
| | | | - Clotilde Costa
- Unidad de Oncología Molecular, CIEMAT (ed70A), Madrid, Spain.,Unidad Mixta Roche-CHUS, Hospital Universitario de Santiago de Compostela, Travesía de Choupana, s/n, Santiago de Compostela, A Coruña, Spain
| | - Cristina Saiz-Ladera
- Unidad de Oncología Molecular, CIEMAT (ed70A), Madrid, Spain.,Departamento de Bioquímica y Biología Molecular I, Facultad de Biología, Universidad Complutense, Madrid, Spain
| | | | - José Duarte
- Grupo de Oncología celular y Molecular, Hospital Universitario 12 de Octubre, Madrid, Spain.,Centro de Investigación Biomédica en Red de Cáncer (CIBER ONC), Spain
| | - Huberto García Muñoz
- Servicio de Anatomía Patológica, Hospital Universitario 12 de Octubre, Instituto de Investigación 12 de Octubre i+12, UCM, Av Cordoba s/n, Madrid, Spain
| | - Federico de la Rosa
- Grupo de Oncología celular y Molecular, Hospital Universitario 12 de Octubre, Madrid, Spain.,Centro de Investigación Biomédica en Red de Cáncer (CIBER ONC), Spain
| | - Felipe Villacampa
- Grupo de Oncología celular y Molecular, Hospital Universitario 12 de Octubre, Madrid, Spain.,Centro de Investigación Biomédica en Red de Cáncer (CIBER ONC), Spain
| | - Daniel Castellano
- Grupo de Oncología celular y Molecular, Hospital Universitario 12 de Octubre, Madrid, Spain.,Centro de Investigación Biomédica en Red de Cáncer (CIBER ONC), Spain
| | - Jesús M Paramio
- Unidad de Oncología Molecular, CIEMAT (ed70A), Madrid, Spain.,Grupo de Oncología celular y Molecular, Hospital Universitario 12 de Octubre, Madrid, Spain.,Centro de Investigación Biomédica en Red de Cáncer (CIBER ONC), Spain
| |
Collapse
|
46
|
Pickl JMA, Tichy D, Kuryshev VY, Tolstov Y, Falkenstein M, Schüler J, Reidenbach D, Hotz-Wagenblatt A, Kristiansen G, Roth W, Hadaschik B, Hohenfellner M, Duensing S, Heckmann D, Sültmann H. Ago-RIP-Seq identifies Polycomb repressive complex I member CBX7 as a major target of miR-375 in prostate cancer progression. Oncotarget 2018; 7:59589-59603. [PMID: 27449098 PMCID: PMC5312160 DOI: 10.18632/oncotarget.10729] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Accepted: 07/09/2016] [Indexed: 01/02/2023] Open
Abstract
Prostate cancer is a heterogeneous disease. MiR-375 is a marker for prostate cancer progression, but its cellular function is not characterized. Here, we provide the first comprehensive investigation of miR-375 in prostate cancer. We show that miR-375 is enriched in prostate cancer compared to normal cells. Furthermore, miR-375 enhanced proliferation, migration and invasion in vitro and induced tumor growth and reduced survival in vivo showing that miR-375 has oncogenic properties in prostate cancer. On the molecular level, we provide the targetome and genome-wide transcriptional changes of miR-375 expression by applying a generalized linear model for Ago-RIP-Seq and RNA-Seq, and show that miR-375 is involved in tumorigenic networks and Polycomb regulation. Integration of tissue and gene ontology data prioritized miR-375 targets and identified the tumor suppressor gene CBX7, a member of Polycomb repressive complex 1, as a major miR-375 target. MiR-375-mediated repression of CBX7 was accompanied by increased expression of its homolog CBX8 and activated transcriptional programs linked to malignant progression in prostate cancer cells. Tissue analysis showed association of CBX7 loss with advanced prostate cancer. Our study indicates that miR-375 exerts its tumor-promoting role in prostate cancer by influencing the epigenetic regulation of transcriptional programs through its ability to directly target the Polycomb complex member CBX7.
Collapse
Affiliation(s)
- Julia M A Pickl
- Cancer Genome Research Group, German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Diana Tichy
- Department of Biostatistics, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Vladimir Y Kuryshev
- Cancer Genome Research Group, German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Yanis Tolstov
- Section of Molecular Urooncology, Department of Urology, University of Heidelberg School of Medicine, Heidelberg, Germany
| | - Michael Falkenstein
- Section of Molecular Urooncology, Department of Urology, University of Heidelberg School of Medicine, Heidelberg, Germany
| | - Julia Schüler
- Oncotest GmbH, Institute for Experimental Oncology, Freiburg, Germany
| | - Daniel Reidenbach
- Cancer Genome Research Group, German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Agnes Hotz-Wagenblatt
- Bioinformatics Group, Core Facility Genomics & Proteomics, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Glen Kristiansen
- Institute of Pathology, Center for Integrated Oncology, University of Bonn, Bonn, Germany
| | - Wilfried Roth
- NCT Tissue Bank of The National Center of Tumor Diseases (NCT) and Institute of Pathology, University Hospital Heidelberg, Heidelberg, Germany
| | - Boris Hadaschik
- Department of Urology, University Hospital Heidelberg, Heidelberg, Germany
| | | | - Stefan Duensing
- Section of Molecular Urooncology, Department of Urology, University of Heidelberg School of Medicine, Heidelberg, Germany
| | - Doreen Heckmann
- Cancer Genome Research Group, German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Holger Sültmann
- Cancer Genome Research Group, German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany
| |
Collapse
|
47
|
Epigenetics and MicroRNAs in Cancer. Int J Mol Sci 2018; 19:ijms19020459. [PMID: 29401683 PMCID: PMC5855681 DOI: 10.3390/ijms19020459] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 01/29/2018] [Accepted: 01/30/2018] [Indexed: 02/08/2023] Open
Abstract
The ability to reprogram the transcriptional circuitry by remodeling the three-dimensional structure of the genome is exploited by cancer cells to promote tumorigenesis. This reprogramming occurs because of hereditable chromatin chemical modifications and the consequent formation of RNA-protein-DNA complexes that represent the principal actors of the epigenetic phenomena. In this regard, the deregulation of a transcribed non-coding RNA may be both cause and consequence of a cancer-related epigenetic alteration. This review summarizes recent findings that implicate microRNAs in the aberrant epigenetic regulation of cancer cells.
Collapse
|
48
|
Anti-cancer effects of curcumin on lung cancer through the inhibition of EZH2 and NOTCH1. Oncotarget 2018; 7:26535-50. [PMID: 27049834 PMCID: PMC5041997 DOI: 10.18632/oncotarget.8532] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Accepted: 03/08/2016] [Indexed: 12/17/2022] Open
Abstract
Curcumin is potentially therapeutic for malignant diseases. The mechanisms of this effect might involve a combination of antioxidant, immunomodulatory, proapoptotic, and antiangiogenic activities. However, the exact mechanisms are not fully understood. In the present study, we provided evidences that curcumin suppressed the expression of enhancer of zeste homolog 2 (EZH2) in lung cancer cells both transcriptionally and post-transcriptionally. Curcumin inhibited the expression of EZH2 through microRNA (miR)-let 7c and miR-101. Curcumin decreased the expression of NOTCH1 through the inhibition of EZH2. There was a reciprocal regulation between EZH2 and NOTCH1 in lung cancer cells. These observations suggest that curcumin inhibits lung cancer growth and metastasis at least partly through the inhibition of EZH2 and NOTCH1.
Collapse
|
49
|
Androgen receptor regulates SRC expression through microRNA-203. Oncotarget 2017; 7:25726-41. [PMID: 27028864 PMCID: PMC5041939 DOI: 10.18632/oncotarget.8366] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Accepted: 03/07/2016] [Indexed: 12/20/2022] Open
Abstract
The SRC kinase has pivotal roles in multiple developmental processes and in tumor progression. An inverse relationship has been observed between androgen receptor (AR) activity and SRC signaling in advanced prostate cancer (PCa); however, the modulation of AR/SRC crosstalk that leads to metastatic PCa is unclear. Here, we showed that patients with high SRC levels displayed correspondingly low canonical AR gene signatures. Our results demonstrated that activated AR induced miR-203 and reduced SRC levels in PCa model systems. miR-203 directly binds to the 3′ UTR of SRC and regulates the stability of SRC mRNA upon AR activation. Moreover, we found that progressive PCa cell migration and growth were associated with a decrease in AR-regulated miR-203 and an increase in SRC. Relationships among AR, miR-203, and SRC were also confirmed in clinical datasets and specimens. We suggest that the induction of SRC results in increased PCa metastasis that is linked to the dysregulation of the AR signaling pathway through the inactivation of miR-203.
Collapse
|
50
|
Netto GJ, Eich ML, Varambally S. Prostate Cancer: An Update on Molecular Pathology with Clinical Implications. EUR UROL SUPPL 2017. [DOI: 10.1016/j.eursup.2017.10.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
|