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Zhang H, Mañán-Mejías PM, Miles HN, Putnam AA, MacGillivray LR, Ricke WA. DDX3X and Stress Granules: Emerging Players in Cancer and Drug Resistance. Cancers (Basel) 2024; 16:1131. [PMID: 38539466 PMCID: PMC10968774 DOI: 10.3390/cancers16061131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 03/09/2024] [Accepted: 03/11/2024] [Indexed: 05/02/2024] Open
Abstract
The DEAD (Asp-Glu-Ala-Asp)-box helicase 3 X-linked (DDX3X) protein participates in many aspects of mRNA metabolism and stress granule (SG) formation. DDX3X has also been associated with signal transduction and cell cycle regulation that are important in maintaining cellular homeostasis. Malfunctions of DDX3X have been implicated in multiple cancers, including brain cancer, leukemia, prostate cancer, and head and neck cancer. Recently, literature has reported SG-associated cancer drug resistance, which correlates with a negative disease prognosis. Based on the connections between DDX3X, SG formation, and cancer pathology, targeting DDX3X may be a promising direction for cancer therapeutics development. In this review, we describe the biological functions of DDX3X in terms of mRNA metabolism, signal transduction, and cell cycle regulation. Furthermore, we summarize the contributions of DDX3X in SG formation and cellular stress adaptation. Finally, we discuss the relationships of DDX3X, SG, and cancer drug resistance, and discuss the current research progress of several DDX3X inhibitors for cancer treatment.
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Affiliation(s)
- Han Zhang
- Division of Pharmaceutical Sciences, School of Pharmacy, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Paula M. Mañán-Mejías
- Division of Pharmaceutical Sciences, School of Pharmacy, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Hannah N. Miles
- Division of Pharmaceutical Sciences, School of Pharmacy, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Andrea A. Putnam
- Department of Biomolecular Chemistry, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53705, USA
| | | | - William A. Ricke
- Division of Pharmaceutical Sciences, School of Pharmacy, University of Wisconsin-Madison, Madison, WI 53705, USA
- Department of Urology, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53705, USA
- George M. O’Brien Urology Research Center of Excellence, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53705, USA
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2
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Rithvik A, Samarpita S, Rasool M. Unleashing the pathological imprinting of cancer in autoimmunity: Is ZEB1 the answer? Life Sci 2023; 332:122115. [PMID: 37739160 DOI: 10.1016/j.lfs.2023.122115] [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: 06/30/2023] [Revised: 09/05/2023] [Accepted: 09/19/2023] [Indexed: 09/24/2023]
Abstract
The intriguing scientific relationship between autoimmunity and cancer immunology have been traditionally indulged to throw spotlight on novel pathological targets. Understandably, these "slowly killing" diseases are on the opposite ends of the immune spectrum. However, the immune regulatory mechanisms between autoimmunity and cancer are not always contradictory and sometimes mirror each other based on disease stage, location, and timepoint. Moreover, the blockade of immune checkpoint molecules or signalling pathways that unleashes the immune response against cancer is being leveraged to preserve self-tolerance and treat many autoimmune disorders. Therefore, understanding the common crucial factors involved in cancer is of paramount importance to paint the autoimmune disease spectrum and validate novel drug candidates. In the current review, we will broadly describe how ZEB1, or Zinc-finger E-box Binding Homeobox 1, reinforces immune exhaustion in cancer or contributes to loss of self-tolerance in auto-immune conditions. We made an effort to exchange information about the molecular pathways and pathological responses (immune regulation, cell proliferation, senescence, autophagy, hypoxia, and circadian rhythm) that can be regulated by ZEB1 in the context of autoimmunity. This will help untwine the intricate and closely postured pathogenesis of ZEB1, that is less explored from the perspective of autoimmunity than its counterpart, cancer. This review will further consider several approaches for targeting ZEB1 in autoimmunity.
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Affiliation(s)
- Arulkumaran Rithvik
- Immunopathology Lab, School of Biosciences and Technology, Vellore Institute of Technology (VIT), Vellore 632 014, Tamil Nādu, India
| | - Snigdha Samarpita
- Department of Internal Medicine, Mayo Clinic, Rochester, MN 55905, USA; Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA
| | - Mahaboobkhan Rasool
- Immunopathology Lab, School of Biosciences and Technology, Vellore Institute of Technology (VIT), Vellore 632 014, Tamil Nādu, India.
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3
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Zheng B, Chen X, Ling Q, Cheng Q, Ye S. Role and therapeutic potential of DEAD-box RNA helicase family in colorectal cancer. Front Oncol 2023; 13:1278282. [PMID: 38023215 PMCID: PMC10654640 DOI: 10.3389/fonc.2023.1278282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 10/12/2023] [Indexed: 12/01/2023] Open
Abstract
Colorectal cancer (CRC) is the third most commonly diagnosed and the second cancer-related death worldwide, leading to more than 0.9 million deaths every year. Unfortunately, this disease is changing rapidly to a younger age, and in a more advanced stage when diagnosed. The DEAD-box RNA helicase proteins are the largest family of RNA helicases so far. They regulate almost every aspect of RNA physiological processes, including RNA transcription, editing, splicing and transport. Aberrant expression and critical roles of the DEAD-box RNA helicase proteins have been found in CRC. In this review, we first summarize the protein structure, cellular distribution, and diverse biological functions of DEAD-box RNA helicases. Then, we discuss the distinct roles of DEAD-box RNA helicase family in CRC and describe the cellular mechanism of actions based on recent studies, with an aim to provide future strategies for the treatment of CRC.
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Affiliation(s)
- Bichun Zheng
- Department of Anorectal Surgery, The Affiliated People’s Hospital of Ningbo University, Ningbo, China
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4
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Iyer AS, Shaik MR, Raufman JP, Xie G. The Roles of Zinc Finger Proteins in Colorectal Cancer. Int J Mol Sci 2023; 24:10249. [PMID: 37373394 DOI: 10.3390/ijms241210249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Revised: 06/13/2023] [Accepted: 06/14/2023] [Indexed: 06/29/2023] Open
Abstract
Despite colorectal cancer remaining a leading worldwide cause of cancer-related death, there remains a paucity of effective treatments for advanced disease. The molecular mechanisms underlying the development of colorectal cancer include altered cell signaling and cell cycle regulation that may result from epigenetic modifications of gene expression and function. Acting as important transcriptional regulators of normal biological processes, zinc finger proteins also play key roles in regulating the cellular mechanisms underlying colorectal neoplasia. These actions impact cell differentiation and proliferation, epithelial-mesenchymal transition, apoptosis, homeostasis, senescence, and maintenance of stemness. With the goal of highlighting promising points of therapeutic intervention, we review the oncogenic and tumor suppressor roles of zinc finger proteins with respect to colorectal cancer tumorigenesis and progression.
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Affiliation(s)
- Aishwarya S Iyer
- Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Mohammed Rifat Shaik
- Department of Medicine, University of Maryland Medical Center Midtown Campus, Baltimore, MD 21201, USA
| | - Jean-Pierre Raufman
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA
- VA Maryland Healthcare System, Baltimore, MD 21201, USA
- Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Guofeng Xie
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA
- VA Maryland Healthcare System, Baltimore, MD 21201, USA
- Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD 21201, USA
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5
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Bortoletto AS, Parchem RJ. KRAS Hijacks the miRNA Regulatory Pathway in Cancer. Cancer Res 2023; 83:1563-1572. [PMID: 36946612 PMCID: PMC10183808 DOI: 10.1158/0008-5472.can-23-0296] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 03/01/2023] [Accepted: 03/20/2023] [Indexed: 03/23/2023]
Abstract
Extensive studies have focused on the misregulation of individual miRNAs in cancer. More recently, mutations in the miRNA biogenesis and processing machinery have been implicated in several malignancies. Such mutations can lead to global miRNA misregulation, which may promote many of the well-known hallmarks of cancer. Interestingly, recent evidence also suggests that oncogenic Kristen rat sarcoma viral oncogene homolog (KRAS) mutations act in part by modulating the activity of members of the miRNA regulatory pathway. Here, we highlight the vital role mutations in the miRNA core machinery play in promoting malignant transformation. Furthermore, we discuss how mutant KRAS can simultaneously impact multiple steps of miRNA processing and function to promote tumorigenesis. Although the ability of KRAS to hijack the miRNA regulatory pathway adds a layer of complexity to its oncogenic nature, it also provides a potential therapeutic avenue that has yet to be exploited in the clinic. Moreover, concurrent targeting of mutant KRAS and members of the miRNA core machinery represents a potential strategy for treating cancer.
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Affiliation(s)
- Angelina S. Bortoletto
- Center for Cell and Gene Therapy, Stem Cell and Regenerative Medicine Center, Department of Molecular and Cellular Biology, Department of Neuroscience, Translational Biology and Molecular Medicine Program, Medical Scientist Training Program, Baylor College of Medicine, Houston, Texas
| | - Ronald J. Parchem
- Center for Cell and Gene Therapy, Stem Cell and Regenerative Medicine Center, Department of Molecular and Cellular Biology, Department of Neuroscience, Translational Biology and Molecular Medicine Program, Medical Scientist Training Program, Baylor College of Medicine, Houston, Texas
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6
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Eom S, Lee S, Lee J, Yeom HD, Lee SG, Lee J. DDX3 Upregulates Hydrogen Peroxide-Induced Melanogenesis in Sk-Mel-2 Human Melanoma Cells. Molecules 2022; 27:molecules27207010. [PMID: 36296601 PMCID: PMC9606883 DOI: 10.3390/molecules27207010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 10/08/2022] [Accepted: 10/14/2022] [Indexed: 11/16/2022] Open
Abstract
DDX3 is a DEAD-box RNA helicase with diverse biological functions through multicellular pathways. The objective of this study was to investigate the role of DDX3 in regulating melanogenesis by the exploring signaling pathways involved. Various concentrations of hydrogen peroxide were used to induce melanogenesis in SK-Mel-2 human melanoma cells. Melanin content assays, tyrosinase activity analysis, and Western blot analysis were performed to determine how DDX3 was involved in melanogenesis. Transient transfection was performed to overexpress or silence DDX3 genes. Immunoprecipitation was performed using an antityrosinase antibody. Based on the results of the cell viability test, melanin content, and activity of tyrosinase, a key melanogenesis enzyme, in SK-Mel-2 human melanoma cells, hydrogen peroxide at 0.1 mM was chosen to induce melanogenesis. Treatment with H2O2 notably increased the promoter activity of DDX3. After treatment with hydroperoxide for 4 h, melanin content and tyrosinase activity peaked in DDX3-transfected cells. Overexpression of DDX3 increased melanin content and tyrosinase expression under oxidative stress induced by H2O2. DDX3 co-immunoprecipitated with tyrosinase, a melanogenesis enzyme. The interaction between DDX3 and tyrosinase was strongly increased under oxidative stress. DDX3 could increase melanogenesis under the H2O2-treated condition. Thus, targeting DDX3 could be a novel strategy to develop molecular therapy for skin diseases.
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Affiliation(s)
- Sanung Eom
- Department of Biotechnology, Chonnam National University, Gwangju 61886, Korea
| | - Shinhui Lee
- Department of Biotechnology, Chonnam National University, Gwangju 61886, Korea
| | - Jiwon Lee
- Department of Biotechnology, Chonnam National University, Gwangju 61886, Korea
| | | | - Seong-Gene Lee
- Department of Biotechnology, Chonnam National University, Gwangju 61886, Korea
- Correspondence: (S.-G.L.); (J.L.); Tel.: +82-62-530-2160 (S.-G.L.); +82-62-530-2164 (J.L.)
| | - Junho Lee
- Department of Biotechnology, Chonnam National University, Gwangju 61886, Korea
- Correspondence: (S.-G.L.); (J.L.); Tel.: +82-62-530-2160 (S.-G.L.); +82-62-530-2164 (J.L.)
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7
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Nishimura T, Takadate T, Maeda S, Suzuki T, Minowa T, Fukuda T, Bando Y, Unno M. Disease-related protein co-expression networks are associated with the prognosis of resectable node-positive pancreatic ductal adenocarcinoma. Sci Rep 2022; 12:14709. [PMID: 36038612 PMCID: PMC9424258 DOI: 10.1038/s41598-022-19182-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 08/25/2022] [Indexed: 12/05/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a multifactorial disease, the molecular profile of which remains unclear. This study aimed at unveiling the disease-related protein networks associated with different outcomes of resectable, node-positive PDAC cases. We assessed laser-microdissected cancerous cells from PDAC tissues of a poor outcome group (POG; n = 4) and a better outcome group (BOG; n = 4). Noncancerous pancreatic duct tissues (n = 5) were used as the reference. We identified four representative network modules by applying a weighted network correlation analysis to the obtained quantitative PDAC proteome datasets. Two network modules that were significant for POG were associated with the heat shock response to hypoxia-related stress; in the latter, a large involvement of the non-canonical Hedgehog pathway (regulated by GLI1), the internal ribosome entry site-mediated cap-independent translation, the inositol requiring enzyme 1-alpha (IRE1α)/X-box binding protein 1 pathway of the unfolding protein response (UPR), and the aerobic glycolysis was observed. By contrast, the BOG characteristic module was involved in the inactivation of the UPR pathway via the synoviolin 1-dependent proteasomal degradation of IRE1α, the activation of SOX2, and the loss of PALB2 (partner and localizer of BRCA2) function, all potentially suppressing malignant tumor development. Our findings might facilitate future therapeutic strategies for PDAC.
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Affiliation(s)
- Toshihide Nishimura
- Department of Translational Medicine Informatics, St. Marianna University School of Medicine, Kawasaki, Kanagawa, 216-8511, Japan. .,Biosys Technologies, Inc., Tokyo, Tokyo, 153-8904, Japan.
| | - Tatsuyuki Takadate
- Department of Surgery, National Hospital Organization Sendai Medical Center, Sendai, Miyagi, 983-8520, Japan
| | - Shimpei Maeda
- Department of Surgery, Saitama Medical Center, Jichi Medical University, Shimotsuke, Tochigi, 329-0498, Japan
| | - Takashi Suzuki
- Department of Pathology and Histotechnology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, 980-8574, Japan
| | - Takashi Minowa
- Nanotechnology Innovation Station, National Institute for Materials Science, Tsukuba, Ibaraki, Japan
| | - Tetsuya Fukuda
- Biosys Technologies, Inc., Tokyo, Tokyo, 153-8904, Japan
| | - Yasuhiko Bando
- Biosys Technologies, Inc., Tokyo, Tokyo, 153-8904, Japan
| | - Michiaki Unno
- Department of Surgery, National Hospital Organization Sendai Medical Center, Sendai, Miyagi, 983-8520, Japan.,Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Miyagi, 980-8574, Japan
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8
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Secchi M, Lodola C, Garbelli A, Bione S, Maga G. DEAD-Box RNA Helicases DDX3X and DDX5 as Oncogenes or Oncosuppressors: A Network Perspective. Cancers (Basel) 2022; 14:cancers14153820. [PMID: 35954483 PMCID: PMC9367324 DOI: 10.3390/cancers14153820] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/01/2022] [Accepted: 08/04/2022] [Indexed: 11/16/2022] Open
Abstract
Simple Summary The transformation of a normal cell into a cancerous one is caused by the deregulation of different metabolic pathways, involving a complex network of protein–protein interactions. The cellular enzymes DDX3X and DDX5 play important roles in the maintenance of normal cell metabolism, but their deregulation can accelerate tumor transformation. Both DDX3X and DDX5 interact with hundreds of different cellular proteins, and depending on the specific pathways in which they are involved, both proteins can either act as suppressors of cancer or as oncogenes. In this review, we summarize the current knowledge about the roles of DDX3X and DDX5 in different tumors. In addition, we present a list of interacting proteins and discuss the possible contribution of some of these protein–protein interactions in determining the roles of DDX3X and DDX5 in the process of cancer proliferation, also suggesting novel hypotheses for future studies. Abstract RNA helicases of the DEAD-box family are involved in several metabolic pathways, from transcription and translation to cell proliferation, innate immunity and stress response. Given their multiple roles, it is not surprising that their deregulation or mutation is linked to different pathological conditions, including cancer. However, while in some cases the loss of function of a given DEAD-box helicase promotes tumor transformation, indicating an oncosuppressive role, in other contexts the overexpression of the same enzyme favors cancer progression, thus acting as a typical oncogene. The roles of two well-characterized members of this family, DDX3X and DDX5, as both oncogenes and oncosuppressors have been documented in several cancer types. Understanding the interplay of the different cellular contexts, as defined by the molecular interaction networks of DDX3X and DDX5 in different tumors, with the cancer-specific roles played by these proteins could help to explain their apparently conflicting roles as cancer drivers or suppressors.
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Samir P, Kanneganti TD. DEAD/H-Box Helicases in Immunity, Inflammation, Cell Differentiation, and Cell Death and Disease. Cells 2022; 11:1608. [PMID: 35626643 PMCID: PMC9139286 DOI: 10.3390/cells11101608] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 05/04/2022] [Accepted: 05/07/2022] [Indexed: 12/21/2022] Open
Abstract
DEAD/H-box proteins are the largest family of RNA helicases in mammalian genomes, and they are present in all kingdoms of life. Since their discovery in the late 1980s, DEAD/H-box family proteins have been a major focus of study. They have been found to play central roles in RNA metabolism, gene expression, signal transduction, programmed cell death, and the immune response to bacterial and viral infections. Aberrant functions of DEAD/H-box proteins have been implicated in a wide range of human diseases that include cancer, neurodegeneration, and inherited genetic disorders. In this review, we provide a historical context and discuss the molecular functions of DEAD/H-box proteins, highlighting the recent discoveries linking their dysregulation to human diseases. We will also discuss the state of knowledge regarding two specific DEAD/H-box proteins that have critical roles in immune responses and programmed cell death, DDX3X and DDX58, also known as RIG-I. Given their importance in homeostasis and disease, an improved understanding of DEAD/H-box protein biology and protein-protein interactions will be critical for informing strategies to counteract the pathogenesis associated with several human diseases.
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10
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Tabassum S, Ghosh MK. DEAD-box RNA helicases with special reference to p68: Unwinding their biology, versatility, and therapeutic opportunity in cancer. Genes Dis 2022. [DOI: 10.1016/j.gendis.2022.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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11
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Lai MC, Chen YP, Li DA, Yu JS, Hung HY, Tarn WY. DDX3 interacts with USP9X and participates in deubiquitination of the anti-apoptotic protein MCL1. FEBS J 2021; 289:1043-1061. [PMID: 34606682 DOI: 10.1111/febs.16219] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 08/26/2021] [Accepted: 10/01/2021] [Indexed: 01/19/2023]
Abstract
Here, we describe a novel interaction between the RNA helicase DDX3 and the deubiquitinase ubiquitin-specific peptidase 9 X-linked (USP9X) in human cells. Domain mapping studies reveal that the C-terminal region of DDX3 interacted with the N terminus of USP9X. USP9X was predominantly localized in the cytoplasm where the interaction between DDX3 and USP9X occurred. USP9X was not visibly enriched in cytoplasmic stress granules (SGs) under oxidative stress conditions, whereas overexpression of GFP-DDX3 induced SG formation and recruited USP9X to SGs in HeLa cells. Luciferase reporter assays showed that depletion of USP9X had no significant effect on DDX3-mediated translation. Given that DDX3 is not ubiquitinated upon ubiquitin overexpression, it is unlikely that DDX3 serves as a substrate of USP9X. Importantly, we found that ubiquitinated MCL1 was accumulated upon depletion of USP9X and/or DDX3 in MG132-treated cells, suggesting that USP9X and DDX3 play a role in regulating MCL1 protein stability and anti-apoptotic function. This study indicates that DDX3 exerts anti-apoptotic effects probably by coordinating with USP9X in promoting MCL1 deubiquitination.
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Affiliation(s)
- Ming-Chih Lai
- Department of Biomedical Sciences, Chang Gung University, Taoyuan, Taiwan.,Graduate Institute of Biomedical Sciences, Chang Gung University, Taoyuan, Taiwan.,Department of Colorectal Surgery, New Taipei Municipal Tucheng Hospital, Taiwan
| | - Yi-Pin Chen
- Department of Biomedical Sciences, Chang Gung University, Taoyuan, Taiwan
| | - Ding-An Li
- Department of Biomedical Sciences, Chang Gung University, Taoyuan, Taiwan
| | - Jau-Song Yu
- Graduate Institute of Biomedical Sciences, Chang Gung University, Taoyuan, Taiwan.,Molecular Medicine Research Center, Chang Gung University, Taoyuan, Taiwan
| | - Hsin-Yuan Hung
- Department of Colorectal Surgery, New Taipei Municipal Tucheng Hospital, Taiwan
| | - Woan-Yuh Tarn
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
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12
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Rampogu S, Kim SM, Shaik B, Lee G, Kim JH, Kim GS, Lee KW, Kim MO. Novel Butein Derivatives Repress DDX3 Expression by Inhibiting PI3K/AKT Signaling Pathway in MCF-7 and MDA-MB-231 Cell Lines. Front Oncol 2021; 11:712824. [PMID: 34485148 PMCID: PMC8416463 DOI: 10.3389/fonc.2021.712824] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 06/10/2021] [Indexed: 11/30/2022] Open
Abstract
Background Breast cancer is one of the major causes of mortalities noticed in women globally. DDX3 has emerged as a potent target for several cancers, including breast cancer to which currently there are no reported or approved drugs. Methods To find effective cancer therapeutics, three compounds were computationally designed tweaking the structure of natural compound butein. These compounds were synthesized and evaluated for their anticancer property in MCF-7 and MDA-MB-231 cell lines targeting DDX3. The in silico molecular docking studies have shown that the compounds have occupied the binding site of the human DDX3 target. Furthermore, to investigate the cell viability effect of 3a, 3b, and 3c on MCF-7 and MDA-MB-231 cell lines, the cell lines were treated with different concentrations of compounds for 24 and 48 h and measured using MTT assay. Results The cell viability results showed that the have induced dose dependent suppression of DDX3 expression. Additionally, 3b and 3c have reduced the expression of DDX3 in MCF-7 and MDA-MD-231 cell lines. 3b or 3c treated cell lines increased apoptotic protein expression. Both the compounds have induced the apoptotic cell death by elevated levels of cleaved PARP and cleaved caspase 3 and repression of the anti-apoptosis protein BCL-xL. Additionally, they have demonstrated the G2/M phase cell cycle arrest in both the cell lines. Additionally, 3c decreased PI3K and AKT levels. Conclusions Our results shed light on the anticancer ability of the designed compounds. These compounds can be employed as chemical spaces to design new prospective drug candidates. Additionally, our computational method can be adapted to design new chemical scaffolds as plausible inhibitors.
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Affiliation(s)
- Shailima Rampogu
- Division of Life Sciences, Division of Applied Life Science (BK21 Plus), Research Institute of Natural Science (RINS), Gyeongsang National University (GNU), Jinju, South Korea.,Division of Life Science and Applied Life Science (BK 21 Plus), College of Natural Sciences, Gyeongsang National University, Jinju, South Korea
| | - Seong Min Kim
- Research Institute of Life Science and College of Veterinary Medicine, Gyeongsang National University, Jinju, South Korea
| | - Baji Shaik
- Department of Chemistry (BK 21 Plus), Research Institute of Natural Science (RINS), Gyeongsang National University, Jinju, South Korea
| | - Gihwan Lee
- Division of Life Sciences, Division of Applied Life Science (BK21 Plus), Research Institute of Natural Science (RINS), Gyeongsang National University (GNU), Jinju, South Korea
| | - Ju Hyun Kim
- Department of Chemistry (BK 21 Plus), Research Institute of Natural Science (RINS), Gyeongsang National University, Jinju, South Korea
| | - Gon Sup Kim
- Research Institute of Life Science and College of Veterinary Medicine, Gyeongsang National University, Jinju, South Korea
| | - Keun Woo Lee
- Division of Life Sciences, Division of Applied Life Science (BK21 Plus), Research Institute of Natural Science (RINS), Gyeongsang National University (GNU), Jinju, South Korea
| | - Myeong Ok Kim
- Division of Life Science and Applied Life Science (BK 21 Plus), College of Natural Sciences, Gyeongsang National University, Jinju, South Korea
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13
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The DEAD-box protein family of RNA helicases: sentinels for a myriad of cellular functions with emerging roles in tumorigenesis. Int J Clin Oncol 2021; 26:795-825. [PMID: 33656655 DOI: 10.1007/s10147-021-01892-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 02/20/2021] [Indexed: 02/06/2023]
Abstract
DEAD-box RNA helicases comprise a family within helicase superfamily 2 and make up the largest group of RNA helicases. They are a profoundly conserved family of RNA-binding proteins, carrying a generic Asp-Glu-Ala-Asp (D-E-A-D) motif that gives the family its name. Members of the DEAD-box family of RNA helicases are engaged in all facets of RNA metabolism from biogenesis to decay. DEAD-box proteins ordinarily function as constituents of enormous multi-protein complexes and it is believed that interactions with other components in the complexes might be answerable for the various capacities ascribed to these proteins. Therefore, their exact function is probably impacted by their interacting partners and to be profoundly context dependent. This may give a clarification to the occasionally inconsistent reports proposing that DEAD-box proteins have both pro- and anti-proliferative functions in cancer. There is emerging evidence that DEAD-box family of RNA helicases play pivotal functions in various cellular processes and in numerous cases have been embroiled in cellular proliferation and/or neoplastic transformation. In various malignancy types, DEAD-box RNA helicases have been reported to possess pro-proliferation or even oncogenic roles as well as anti-proliferative or tumor suppressor functions. Clarifying the exact function of DEAD-box helicases in cancer is probably intricate, and relies upon the cellular milieu and interacting factors. This review aims to summarize the current data on the numerous capacities that have been ascribed to DEAD-box RNA helicases. It also highlights their diverse actions upon malignant transformation in the various tumor types.
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Abstract
The DEAD-box helicase family member DDX3X (DBX, DDX3) functions in nearly all stages of RNA metabolism and participates in the progression of many diseases, including virus infection, inflammation, intellectual disabilities and cancer. Over two decades, many studies have gradually unveiled the role of DDX3X in tumorigenesis and tumour progression. In fact, DDX3X possesses numerous functions in cancer biology and is closely related to many well-known molecules. In this review, we describe the function of DDX3X in RNA metabolism, cellular stress response, innate immune response, metabolic stress response in pancreatic β cells and embryo development. Then, we focused on the role of DDX3X in cancer biology and systematically demonstrated its functions in various aspects of tumorigenesis and development. To provide a more intuitive understanding of the role of DDX3X in cancer, we summarized its functions and specific mechanisms in various types of cancer and presented its involvement in cancer-related signalling pathways.
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15
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Perfetto M, Xu X, Lu C, Shi Y, Yousaf N, Li J, Yien YY, Wei S. The RNA helicase DDX3 induces neural crest by promoting AKT activity. Development 2021; 148:dev.184341. [PMID: 33318149 DOI: 10.1242/dev.184341] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 12/02/2020] [Indexed: 01/02/2023]
Abstract
Mutations in the RNA helicase DDX3 have emerged as a frequent cause of intellectual disability in humans. Because many individuals carrying DDX3 mutations have additional defects in craniofacial structures and other tissues containing neural crest (NC)-derived cells, we hypothesized that DDX3 is also important for NC development. Using Xenopus tropicalis as a model, we show that DDX3 is required for normal NC induction and craniofacial morphogenesis by regulating AKT kinase activity. Depletion of DDX3 decreases AKT activity and AKT-dependent inhibitory phosphorylation of GSK3β, leading to reduced levels of β-catenin and Snai1: two GSK3β substrates that are crucial for NC induction. DDX3 function in regulating these downstream signaling events during NC induction is likely mediated by RAC1, a small GTPase whose translation depends on the RNA helicase activity of DDX3. These results suggest an evolutionarily conserved role of DDX3 in NC development by promoting AKT activity, and provide a potential mechanism for the NC-related birth defects displayed by individuals harboring mutations in DDX3 and its downstream effectors in this signaling cascade.
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Affiliation(s)
- Mark Perfetto
- Department of Biological Sciences, University of Delaware, Newark, DE 19716, USA.,Department of Biology, West Virginia University, Morgantown, WV 26506, USA
| | - Xiaolu Xu
- Department of Biological Sciences, University of Delaware, Newark, DE 19716, USA
| | - Congyu Lu
- Department of Biological Sciences, University of Delaware, Newark, DE 19716, USA
| | - Yu Shi
- Department of Biological Sciences, University of Delaware, Newark, DE 19716, USA
| | - Natasha Yousaf
- Department of Biology, West Virginia University, Morgantown, WV 26506, USA
| | - Jiejing Li
- Department of Biology, West Virginia University, Morgantown, WV 26506, USA.,Department of Clinical Laboratory, The Affiliated Hospital of KMUST, Medical School, Kunming University of Science and Technology, Kunming 650032, China
| | - Yvette Y Yien
- Department of Biological Sciences, University of Delaware, Newark, DE 19716, USA
| | - Shuo Wei
- Department of Biological Sciences, University of Delaware, Newark, DE 19716, USA
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16
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Wang Y, Li G, Deng M, Liu X, Huang W, Zhang Y, Liu M, Chen Y. The multifaceted functions of RNA helicases in the adaptive cellular response to hypoxia: From mechanisms to therapeutics. Pharmacol Ther 2020; 221:107783. [PMID: 33307143 DOI: 10.1016/j.pharmthera.2020.107783] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 11/26/2020] [Accepted: 11/30/2020] [Indexed: 02/08/2023]
Abstract
Hypoxia is a hallmark of cancer. Hypoxia-inducible factor (HIF), a master player for sensing and adapting to hypoxia, profoundly influences genome instability, tumor progression and metastasis, metabolic reprogramming, and resistance to chemotherapies and radiotherapies. High levels and activity of HIF result in poor clinical outcomes in cancer patients. Thus, HIFs provide ideal therapeutic targets for cancers. However, HIF biology is sophisticated, and currently available HIF inhibitors have limited clinical utility owing to their low efficacy or side effects. RNA helicases, which are master players in cellular RNA metabolism, are usually highly expressed in tumors to meet the increased oncoprotein biosynthesis demand. Intriguingly, recent findings provide convincing evidence that RNA helicases are crucial for the adaptive cellular response to hypoxia via a mutual regulation with HIFs. More importantly, some RNA helicase inhibitors may suppress HIF signaling by blocking the translation of HIF-responsive genes. Therefore, RNA helicase inhibitors may work synergistically with HIF inhibitors in cancer to improve treatment efficacy. In this review, we discuss current knowledge of how cells sense and adapt to hypoxia through HIFs. However, our primary focus is on the multiple functions of RNA helicases in the adaptive response to hypoxia. We also highlight how these hypoxia-related RNA helicases can be exploited for anti-cancer therapeutics.
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Affiliation(s)
- Yijie Wang
- Department of Pathology, UT Southwestern Medical Center, Dallas, TX 75390, USA
| | - Guangqiang Li
- Zhuhai Institute of Translational Medicine, Zhuhai People's Hospital Affiliated with Jinan University, Jinan University, Zhuhai, Guangdong 519000, China; Biomedical Translational Research Institute, Jinan University, Guangzhou, Guangdong 510632, China
| | - Mingxia Deng
- Zhuhai Institute of Translational Medicine, Zhuhai People's Hospital Affiliated with Jinan University, Jinan University, Zhuhai, Guangdong 519000, China; Biomedical Translational Research Institute, Jinan University, Guangzhou, Guangdong 510632, China
| | - Xiong Liu
- School of Medicine, Jinan University, Guangzhou, Guangdong 510632, China
| | - Weixiao Huang
- School of Medicine, Jinan University, Guangzhou, Guangdong 510632, China
| | - Yao Zhang
- School of Medicine, Jinan University, Guangzhou, Guangdong 510632, China
| | - Min Liu
- Collaborative Innovation Center of Cell Biology in Universities of Shandong, College of Life Sciences, Shandong Normal University, Jinan, Shandong 250014, China
| | - Yan Chen
- Zhuhai Institute of Translational Medicine, Zhuhai People's Hospital Affiliated with Jinan University, Jinan University, Zhuhai, Guangdong 519000, China; Biomedical Translational Research Institute, Jinan University, Guangzhou, Guangdong 510632, China; School of Medicine, Jinan University, Guangzhou, Guangdong 510632, China.
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17
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Legrand N, Dixon DA, Sobolewski C. Stress granules in colorectal cancer: Current knowledge and potential therapeutic applications. World J Gastroenterol 2020; 26:5223-5247. [PMID: 32994684 PMCID: PMC7504244 DOI: 10.3748/wjg.v26.i35.5223] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 08/12/2020] [Accepted: 09/03/2020] [Indexed: 02/06/2023] Open
Abstract
Stress granules (SGs) represent important non-membrane cytoplasmic compartments, involved in cellular adaptation to various stressful conditions (e.g., hypoxia, nutrient deprivation, oxidative stress). These granules contain several scaffold proteins and RNA-binding proteins, which bind to mRNAs and keep them translationally silent while protecting them from harmful conditions. Although the role of SGs in cancer development is still poorly known and vary between cancer types, increasing evidence indicate that the expression and/or the activity of several key SGs components are deregulated in colorectal tumors but also in pre-neoplastic conditions (e.g., inflammatory bowel disease), thus suggesting a potential role in the onset of colorectal cancer (CRC). It is therefore believed that SGs formation importantly contributes to various steps of colorectal tumorigenesis but also in chemoresistance. As CRC is the third most frequent cancer and one of the leading causes of cancer mortality worldwide, development of new therapeutic targets is needed to offset the development of chemoresistance and formation of metastasis. Abolishing SGs assembly may therefore represent an appealing therapeutic strategy to re-sensitize colon cancer cells to anti-cancer chemotherapies. In this review, we summarize the current knowledge on SGs in colorectal cancer and the potential therapeutic strategies that could be employed to target them.
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Affiliation(s)
- Noémie Legrand
- Department of Medicine, Faculty of Medicine, University of Geneva, Geneva CH-1211, Switzerland
| | - Dan A Dixon
- Department of Molecular Biosciences, University of Kansas, Lawrence, Kansas, and University of Kansas Cancer Center, Lawrence, KS 66045, United States
| | - Cyril Sobolewski
- Department of Cell Physiology and Metabolism, Faculty of Medicine, University of Geneva, Geneva CH-1211, Switzerland
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18
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Ahmadiankia N, Khosravi A. Significance of epithelial-to-mesenchymal transition inducing transcription factors in predicting distance metastasis and survival in patients with colorectal cancer: A systematic review and meta-analysis. JOURNAL OF RESEARCH IN MEDICAL SCIENCES 2020; 25:60. [PMID: 33088297 PMCID: PMC7554549 DOI: 10.4103/jrms.jrms_174_19] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Revised: 08/25/2019] [Accepted: 02/28/2020] [Indexed: 12/15/2022]
Abstract
Background: The clinical relevance of epithelial-to-mesenchymal transition (EMT) in colorectal cancer (CRC) progression has been highlighted over the last decade. Several EMT-inducing transcription factors (EMT-TFs) have been implicated in the regulation of EMT, including Twist, Snail1, Slug, ZEB1, and ZEB2. Here, this meta-analysis aimed to predict the risk of distance metastasis and overall survival in CRC patients with high expression of EMT-TFs. Materials and Methods: All eligible studies were searched in PubMed, Scopus, and Web of Science databases. The search was carried out to include literatures published as late as September 1, 2018. In overall, 16 studies that investigated the relationship between EMT-TFs with distance metastasis and survival in CRC patients were included. In meta-analysis, a pooled hazard ratio (HR) and odds ratio (OR) were estimated for associations. Results: The results of this review indicated that expressions of all EMT-TFs are significantly correlated with poor overall survival in CRC. Moreover, there are a significant association between Twist (OR, 1.46; 95% confidence interval [CI], 1.03–2.09), Slug (OR, 3.43; 95% CI, 1.98–5.93), and ZEB2 (OR, 2.42; 95% CI, 1.09–5.40) expression with distance metastatic in CRC patients. Conclusion: These findings suggest that the overexpression of EMT-TFs plays a key role in increasing the risk of distance metastasis as well as decreasing overall survival in CRC patients.
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Affiliation(s)
- Naghmeh Ahmadiankia
- Cancer Prevention Research Center, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Ahmad Khosravi
- Center for Health Related Social and Behavioral Sciences Research, Shahroud University of Medical Sciences, Shahroud, Iran
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19
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Lin TC. DDX3X Multifunctionally Modulates Tumor Progression and Serves as a Prognostic Indicator to Predict Cancer Outcomes. Int J Mol Sci 2019; 21:ijms21010281. [PMID: 31906196 PMCID: PMC6982152 DOI: 10.3390/ijms21010281] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 12/27/2019] [Accepted: 12/28/2019] [Indexed: 12/22/2022] Open
Abstract
DEAD (Asp-Glu-Ala-Asp) box polypeptide 3, X-Linked (DDX3X), also known as DDX3, is one of the most widely studied and evolutionarily conserved members of the DEAD-box RNA helicase subfamily, and has been reported to participate in several cytosolic steps of mRNA metabolism. DDX3X facilitates the translation of specific targets via its helicase activity and regulates factors of the translation initiation complex. Emerging evidence illustrates the biological activities of DDX3X beyond its originally identified functions. The nonconventional regulatory effects include acting as a signaling adaptor molecule independent of enzymatic RNA remodeling, and DDX3X exhibits abnormal expression in cancers. DDX3X interacts with specific components to perform both oncogenic and tumor-suppressive roles in modulating tumor proliferation, migration, invasion, drug resistance, and cancer stemness in many types of cancers, indicating the need to unravel the associated molecular mechanisms. In this review article, we summarized and integrated current findings relevant to DDX3X in cancer research fields, cytokines and compounds modulating DDX3X's functions, and the released transcriptomic information and cancer patient clinical data from public databases. We found evidence for DDX3X having multiple impacts on cancer progression, and evaluated DDX3X expression levels in a pancancer panel and its associations with patient survival in each cancer-type cohort.
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Affiliation(s)
- Tsung-Chieh Lin
- Genomic Medicine Core Laboratory, Chang Gung Memorial Hospital, Linkou, Taiwan
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20
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Fu R, Yang P, Li Z, Liu W, Amin S, Li Z. Avenanthramide A triggers potent ROS-mediated anti-tumor effects in colorectal cancer by directly targeting DDX3. Cell Death Dis 2019; 10:593. [PMID: 31391454 PMCID: PMC6685981 DOI: 10.1038/s41419-019-1825-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 07/11/2019] [Accepted: 07/15/2019] [Indexed: 12/23/2022]
Abstract
Colorectal cancer (CRC) is a common malignant gastrointestinal tumor with high mortality worldwide. Drug resistance and cytotoxicity to normal cells are the main causes of chemotherapeutic treatment failure in CRC. Therefore, extracting the bioactive compounds from natural products with anti-carcinogenic activity and minimal side-effects is a promising strategy against CRC. The present study aims to evaluate the anti-carcinogenic properties of avenanthramides (AVNs) extracted from oats bran and clarify the underlying molecular mechanisms. We demonstrated that AVNs treatment suppressed mitochondrial bioenergetic generation, resulting in mitochondrial swelling and increased reactive oxygen species (ROS) production. Further study indicated that AVNs treatment significantly reduced DDX3 expression, an oncogenic RNA helicase highly expressed in human CRC tissues. DDX3 overexpression reversed the ROS-mediated CRC apoptosis induced by AVNs. Of note, we identified Avenanthramide A (AVN A) as the effective ingredient in AVNs extracts. AVN A blocked the ATPase activity of DDX3 and induced its degradation by directly binding to the Arg287 and Arg294 residues in DDX3. In conclusion, these innovative findings highlight that AVNs extracts, in particular its bioactive compound AVN A may crack the current hurdles in the way of CRC treatment.
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Affiliation(s)
- Rong Fu
- Institute of Biotechnology, Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Shanxi University, Taiyuan, 030006, China.,Institutes of Biomedical Sciences, Shanxi University, Taiyuan, 030006, China
| | - Peng Yang
- Institute of Biotechnology, Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Shanxi University, Taiyuan, 030006, China.,Institutes of Biomedical Sciences, Shanxi University, Taiyuan, 030006, China
| | - Zongwei Li
- Department of Lymphoma and Myeloma, Center for Cancer Immunology Research, The University of Texas MD Anderson Cancer Center, Houston, Texas, 77030, USA
| | - Wen Liu
- Institute of Biotechnology, Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Shanxi University, Taiyuan, 030006, China
| | - Sajid Amin
- Institute of Biotechnology, Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Shanxi University, Taiyuan, 030006, China
| | - Zhuoyu Li
- Institute of Biotechnology, Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Shanxi University, Taiyuan, 030006, China. .,School of Life Science, Shanxi University, Taiyuan, 030006, China.
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21
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Chen B, Chen B, Zhu Z, Ye W, Zeng J, Liu G, Wang S, Gao J, Xu G, Huang Z. Prognostic value of ZEB-1 in solid tumors: a meta-analysis. BMC Cancer 2019; 19:635. [PMID: 31248382 PMCID: PMC6598232 DOI: 10.1186/s12885-019-5830-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 06/12/2019] [Indexed: 12/14/2022] Open
Abstract
Background Zinc-finger E-box binding homeobox 1 (ZEB-1) plays crucial roles in epithelial-to-mesenchymal transition during tumor carcinogenesis. Published studies have examined the potential value of ZEB-1 as a biomarker for the prognosis of cancer. Nevertheless, the prognostic significance of ZEB-1 in human solid tumor remains inconclusive. Therefore, we performed the present meta-analysis to evaluate the prognostic value of ZEB-1 in patients with solid tumors. Methods The 13 included studies (1616 patients) were exact electronic searched from Web of Science, PubMed and EBSCO until September 2018. Pooled hazard ratios (HR) and the corresponding 95% confidence intervals (CI) for overall survival (OS) were analyzed through random or fixed effects models. Univariate and multivariate analyses were independently performed. Subgroup analyses, heterogeneity and publication bias were investigated to further enhance reliability. Results This research indicated that elevated expression of ZEB-1 significantly predicted worse OS in patients with solid tumors. In the univariate analysis, the pooled HR for OS was 1.66 (95% CI: 1.45–1.90; P < 0.01). Meanwhile, in multivariate analysis, the pooled HR for OS was 2.28 (95% CI: 1.58–3.30; P < 0.01). Begg’s funnel plot and Begg’s test did not show evidence of significant publication bias, both in univariate analysis and multivariate analysis. Conclusions High expression of ZEB-1 was associated with poorer OS, suggesting that ZEB-1 may be a potential biomarker for the prediction of prognosis, and a novel therapeutic target in human solid tumors. Electronic supplementary material The online version of this article (10.1186/s12885-019-5830-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Borong Chen
- Department of Gastrointestinal Surgery, Xiamen Cancer Hospital of The First Affiliated Hospital of Xiamen University, 55 Zhen Hai Road, Si Ming District, Xiamen, 361003, Fujian Province, China
| | - Baisheng Chen
- Department of Endoscopy Center, Xiamen Branch of Affiliated Zhongshan Hospital of Fudan University, Xiamen, Fujian, China
| | - Zhipeng Zhu
- Department of Gastrointestinal Surgery, Xiamen Cancer Hospital of The First Affiliated Hospital of Xiamen University, 55 Zhen Hai Road, Si Ming District, Xiamen, 361003, Fujian Province, China
| | - Weipeng Ye
- Department of Gastrointestinal Surgery, First Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China
| | - Junjie Zeng
- Department of Gastrointestinal Surgery, Xiamen Cancer Hospital of The First Affiliated Hospital of Xiamen University, 55 Zhen Hai Road, Si Ming District, Xiamen, 361003, Fujian Province, China
| | - Gang Liu
- Department of Breast Surgery, The Third Hospital of Nanchang City, Key Laboratory of Breast Diseases, Nanchang, Jiangxi, China
| | - Shengjie Wang
- Department of Gastrointestinal Surgery, Xiamen Cancer Hospital of The First Affiliated Hospital of Xiamen University, 55 Zhen Hai Road, Si Ming District, Xiamen, 361003, Fujian Province, China
| | - Jin Gao
- Department of Gastrointestinal Surgery, Xiamen Cancer Hospital of The First Affiliated Hospital of Xiamen University, 55 Zhen Hai Road, Si Ming District, Xiamen, 361003, Fujian Province, China
| | - Guoxing Xu
- Department of Endoscopy Center, First Affiliated Hospital of Xiamen University, Xiamen, China.
| | - Zhengjie Huang
- Department of Gastrointestinal Surgery, Xiamen Cancer Hospital of The First Affiliated Hospital of Xiamen University, 55 Zhen Hai Road, Si Ming District, Xiamen, 361003, Fujian Province, China. .,Department of Gastrointestinal Surgery, First Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China.
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22
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Fukumoto T, Zhu H, Nacarelli T, Karakashev S, Fatkhutdinov N, Wu S, Liu P, Kossenkov AV, Showe LC, Jean S, Zhang L, Zhang R. N 6-Methylation of Adenosine of FZD10 mRNA Contributes to PARP Inhibitor Resistance. Cancer Res 2019; 79:2812-2820. [PMID: 30967398 DOI: 10.1158/0008-5472.can-18-3592] [Citation(s) in RCA: 103] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 02/13/2019] [Accepted: 04/05/2019] [Indexed: 12/17/2022]
Abstract
Despite the high initial response rates to PARP inhibitors (PARPi) in BRCA-mutated epithelial ovarian cancers (EOC), PARPi resistance remains a major challenge. Chemical modifications of RNAs have emerged as a new layer of epigenetic gene regulation. N6-methyladenosine (m6A) is the most abundant chemical modification of mRNA, yet the role of m6A modification in PARPi resistance has not previously been explored. Here, we show that m6A modification of FZD10 mRNA contributes to PARPi resistance by upregulating the Wnt/β-catenin pathway in BRCA-mutated EOC cells. Global m6A profile revealed a significant increase in m6A modification in FZD10 mRNA, which correlated with increased FZD10 mRNA stability and an upregulation of the Wnt/β-catenin pathway. Depletion of FZD10 or inhibition of the Wnt/β-catenin sensitizes resistant cells to PARPi. Mechanistically, downregulation of m6A demethylases FTO and ALKBH5 was sufficient to increase FZD10 mRNA m6A modification and reduce PARPi sensitivity, which correlated with an increase in homologous recombination activity. Moreover, combined inhibition of PARP and Wnt/β-catenin showed synergistic suppression of PARPi-resistant cells in vitro and in vivo in a xenograft EOC mouse model. Overall, our results show that m6A contributes to PARPi resistance in BRCA-deficient EOC cells by upregulating the Wnt/β-catenin pathway via stabilization of FZD10. They also suggest that inhibition of the Wnt/β-catenin pathway represents a potential strategy to overcome PARPi resistance. SIGNIFICANCE: These findings elucidate a novel regulatory mechanism of PARPi resistance in EOC by showing that m6A modification of FZD10 mRNA contributes to PARPi resistance in BRCA-deficient EOC cells via upregulation of Wnt/β-catenin pathway.
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Affiliation(s)
- Takeshi Fukumoto
- Gene Expression and Regulation Program, The Wistar Institute, Philadelphia, Pennsylvania
| | - Hengrui Zhu
- Gene Expression and Regulation Program, The Wistar Institute, Philadelphia, Pennsylvania
| | - Timothy Nacarelli
- Gene Expression and Regulation Program, The Wistar Institute, Philadelphia, Pennsylvania
| | - Sergey Karakashev
- Gene Expression and Regulation Program, The Wistar Institute, Philadelphia, Pennsylvania
| | - Nail Fatkhutdinov
- Gene Expression and Regulation Program, The Wistar Institute, Philadelphia, Pennsylvania.,Kazan Federal University, Kazan, Russia
| | - Shuai Wu
- Gene Expression and Regulation Program, The Wistar Institute, Philadelphia, Pennsylvania
| | - Pingyu Liu
- Gene Expression and Regulation Program, The Wistar Institute, Philadelphia, Pennsylvania
| | - Andrew V Kossenkov
- Center for Systems and Computational Biology. The Wistar Institute, Philadelphia, Pennsylvania
| | - Louise C Showe
- Center for Systems and Computational Biology. The Wistar Institute, Philadelphia, Pennsylvania.,Molecular and Cellular Oncogenesis Program, The Wistar Institute, Philadelphia, Pennsylvania
| | - Stephanie Jean
- Helen F. Graham Cancer Center & Research Institute, Newark, Delaware
| | - Lin Zhang
- Department of Obstetrics and Gynecology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Rugang Zhang
- Gene Expression and Regulation Program, The Wistar Institute, Philadelphia, Pennsylvania.
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23
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Vellky JE, Ricke EA, Huang W, Ricke WA. Expression and Localization of DDX3 in Prostate Cancer Progression and Metastasis. THE AMERICAN JOURNAL OF PATHOLOGY 2019; 189:1256-1267. [PMID: 30926334 DOI: 10.1016/j.ajpath.2019.02.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Revised: 02/01/2019] [Accepted: 02/14/2019] [Indexed: 11/17/2022]
Abstract
Survival rates decrease significantly when localized prostate cancer (CaP) becomes metastatic, emphasizing the need for improved targeted therapies. DDX3, an RNA helicase, has widespread functions in RNA regulation, in both the nucleus and cytoplasm. Although DDX3 has been implicated as a prognostic marker for many cancers, including primary CaP, its expression, localization, and function in metastatic CaP have not been investigated. Analysis of metadata and cell line models found increased DDX3 expression in metastatic versus primary CaP and benign prostate. Quantification of DDX3 expression in 320 human prostate samples, representing different stages of CaP progression, revealed an increase in epithelial whole cell, cytoplasmic, and nuclear DDX3 in primary CaP compared with benign prostate. In metastatic tissues, cytoplasmic DDX3 remained highly expressed, whereas nuclear DDX3 significantly decreased compared with primary CaP, suggesting a potential role for cytoplasmic DDX3 in metastatic CaP. Genetic and pharmacologic loss of function for DDX3 in metastatic CaP produced a significant decrease in cell viability, proliferation, and motility but did not affect apoptosis. The data suggest that cytoplasmic DDX3 is highly expressed in metastatic CaP and that inhibition of DDX3 affects metastatic growth by decreasing proliferation and motility. These findings introduce a novel role for cytoplasmic DDX3 in CaP progression and provide a foundation for clinically targeting DDX3 in metastatic CaP.
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Affiliation(s)
- Jordan E Vellky
- Department of Urology, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin; Department of Cancer Biology Graduate Research Program, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin; George M. O'Brien Research Center of Excellence, University of Wisconsin, Madison, Wisconsin; Carbone Cancer Center, University of Wisconsin, Madison, Wisconsin
| | - Emily A Ricke
- Department of Urology, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin; George M. O'Brien Research Center of Excellence, University of Wisconsin, Madison, Wisconsin; Carbone Cancer Center, University of Wisconsin, Madison, Wisconsin
| | - Wei Huang
- George M. O'Brien Research Center of Excellence, University of Wisconsin, Madison, Wisconsin; Carbone Cancer Center, University of Wisconsin, Madison, Wisconsin; Department of Pathology and Laboratory Medicine, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin
| | - William A Ricke
- Department of Urology, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin; George M. O'Brien Research Center of Excellence, University of Wisconsin, Madison, Wisconsin; Carbone Cancer Center, University of Wisconsin, Madison, Wisconsin.
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24
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Yang F, Fang E, Mei H, Chen Y, Li H, Li D, Song H, Wang J, Hong M, Xiao W, Wang X, Huang K, Zheng L, Tong Q. Cis-Acting circ-CTNNB1 Promotes β-Catenin Signaling and Cancer Progression via DDX3-Mediated Transactivation of YY1. Cancer Res 2018; 79:557-571. [PMID: 30563889 DOI: 10.1158/0008-5472.can-18-1559] [Citation(s) in RCA: 115] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2018] [Revised: 09/27/2018] [Accepted: 12/11/2018] [Indexed: 11/16/2022]
Abstract
Circular RNAs (circRNA), a subclass of noncoding RNA characterized by covalently closed continuous loops, play emerging roles in tumorigenesis and aggressiveness. However, the functions and underlying mechanisms of circRNA in regulating Wnt/β-catenin signaling and cancer progression remain elusive. Here, we screen cis-acting circRNA generated by β-catenin (CTNNB1)/transcription factor 7-like 2 genes and identify one intronic circRNA derived from CTNNB1 (circ-CTNNB1) as a novel driver of cancer progression. Circ-CTNNB1 was predominantly expressed in the nucleus, upregulated in cancer tissues and cell lines, and associated with unfavorable outcomes in patients with cancer. Circ-CTNNB1 promoted β-catenin activation, growth, invasion, and metastasis in cancer cells. Circ-CTNNB1 bound DEAD-box polypeptide 3 (DDX3) to facilitate its physical interaction with transcription factor Yin Yang 1 (YY1), resulting in the transactivation of YY1 and transcriptional alteration of downstream genes associated with β-catenin activation and cancer progression. Preclinically, administration of lentivirus-mediated short hairpin RNA targeting circ-CTNNB1 or a cell-penetrating inhibitory peptide blocking the circ-CTNNB1-DDX3 interaction inhibited downstream gene expression, tumorigenesis, and aggressiveness in cancer cells. Taken together, these results demonstrate cis-acting circ-CTNNB1 as a mediator of β-catenin signaling and cancer progression through DDX3-mediated transactivation of YY1. SIGNIFICANCE: These findings reveal the oncogenic functions of a cis-acting circular RNA in β-catenin activation and cancer progression, with potential value as a therapeutic target for human cancers.
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Affiliation(s)
- Feng Yang
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, P. R. China
| | - Erhu Fang
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, P. R. China
| | - Hong Mei
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, P. R. China
| | - Yajun Chen
- Department of Pathology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, P. R. China
| | - Huanhuan Li
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, P. R. China
| | - Dan Li
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, P. R. China
| | - Huajie Song
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, P. R. China
| | - Jianqun Wang
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, P. R. China
| | - Mei Hong
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, P. R. China
| | - Wenjing Xiao
- Department of Pathology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, P. R. China
| | - Xiaojing Wang
- Clinical Center of Human Genomic Research, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, P. R. China
| | - Kai Huang
- Clinical Center of Human Genomic Research, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, P. R. China
| | - Liduan Zheng
- Department of Pathology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, P. R. China. .,Clinical Center of Human Genomic Research, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, P. R. China
| | - Qiangsong Tong
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, P. R. China. .,Clinical Center of Human Genomic Research, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, P. R. China
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DDX3 Participates in Translational Control of Inflammation Induced by Infections and Injuries. Mol Cell Biol 2018; 39:MCB.00285-18. [PMID: 30373933 DOI: 10.1128/mcb.00285-18] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 10/10/2018] [Indexed: 12/28/2022] Open
Abstract
Recent studies have suggested that DDX3 functions in antiviral innate immunity, but the underlying mechanism remains elusive. We previously identified target mRNAs whose translation is controlled by DDX3. Pathway enrichment analysis of these targets indicated that DDX3 is involved in various infections and inflammation. Using immunoblotting, we confirmed that PACT, STAT1, GNB2, Rac1, TAK1, and p38 mitogen-activated protein kinase (MAPK) proteins are downregulated by DDX3 knockdown in human monocytic THP-1 cells and epithelial HeLa cells. Polysome profiling revealed that DDX3 knockdown reduces the translational efficiency of target mRNAs. We further demonstrated DDX3-mediated translational control of target mRNAs by luciferase reporter assays. To examine the effects of DDX3 knockdown on macrophage migration and phagocytosis, we performed in vitro cell migration assay and flow cytometry analysis of the uptake of green fluorescent protein-expressing Escherichia coli in THP-1 cells. The DDX3 knockdown cells exhibited impaired macrophage migration and phagocytosis. Moreover, we used a human cytokine antibody array to identify the cytokines affected by DDX3 knockdown. Several chemokines were decreased considerably in DDX3 knockdown THP-1 cells after lipopolysaccharide or poly(I·C) stimulation. Lastly, we demonstrated that DDX3 is crucial for the recruitment of phagocytes to the site of inflammation in transgenic zebrafish.
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Zhang Y, Xu L, Li A, Han X. The roles of ZEB1 in tumorigenic progression and epigenetic modifications. Biomed Pharmacother 2018; 110:400-408. [PMID: 30530042 DOI: 10.1016/j.biopha.2018.11.112] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Revised: 11/19/2018] [Accepted: 11/25/2018] [Indexed: 02/07/2023] Open
Abstract
Highly expressed Zinc-finger E-box binding protein 1 (ZEB1) is significantly associated with the malignancy of various cancers. Signal transduction and activation of ZEB1 play important roles in cancer transformation and epithelial-mesenchymal transition (EMT). Emerging evidence suggests that ZEB1 drives the induction of EMT with activation of stem cell traits, immune evasion and epigenetic reprogramming. As an ideal target for EMT research, ZEB1 has been extensively studied for decades. However, the link between ZEB1 and epigenetic regulation of EMT has only recently been discovered. ZEB1 facilitates the epigenetic silencing of E-cadherin by recruiting multiple chromatin enzymes of E-cadherin promoter, such as histone deacetylases (HDACs), DNA methyltransferase (DNMT) and ubiquitin ligase. Destruction of the connection between ZEB1 and these chromatin-modifying enzymes may represent an efficient for treating cancer. In this review, we outlined the biological function of ZEB1 in tumorigenic progression and epigenetic modifications and elucidate its transcriptional network, which is a suitable potential target for the design of novel anticancer drugs.
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Affiliation(s)
- Yu Zhang
- Department of Pharmacology, School of Pharmaceutical Sciences, Shandong University, 44 West Wenhua Road, Jinan 250012, Shandong Province, China
| | - Lei Xu
- Pharmaceutical Preparation Section, Hospital of Laiwu Steel Group, 68 Xinxing Road, Laigang 271126, Shandong Province, China
| | - Anqi Li
- Department of Pharmacology, School of Pharmaceutical Sciences, Shandong University, 44 West Wenhua Road, Jinan 250012, Shandong Province, China
| | - Xiuzhen Han
- Department of Pharmacology, School of Pharmaceutical Sciences, Shandong University, 44 West Wenhua Road, Jinan 250012, Shandong Province, China.
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27
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Wu CC, Wu DW, Lin YY, Lin PL, Lee H. Hepatitis B virus X protein represses LKB1 expression to promote tumor progression and poor postoperative outcome in hepatocellular carcinoma. Surgery 2018; 163:1040-1046. [PMID: 29475611 DOI: 10.1016/j.surg.2017.11.030] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 10/29/2017] [Accepted: 11/24/2017] [Indexed: 01/04/2023]
Abstract
BACKGROUND Hepatitis B virus X (HBx) protein plays critical roles in hepatitis B virus (HBV)-associated hepatocellular tumorigenesis through different molecular mechanisms, including inactivation of p53, a key transcription factor of liver kinase B1 (LKB1). We hypothesized that p53 inactivation by HBx protein could decrease LKB1 expression, thereby promoting tumor progression and poor outcomes in patients with HBV-associated hepatocellular carcinoma. METHODS Manipulation strategies for HBx protein and/or p53 were used to verify that loss of LKB1 could promote colony formation and invasiveness in HepG2 and Hep3B cells. The expressions of HBx protein and LKB1 in 93 hepatocellular carcinomas (HCC) were also evaluated by immunohistochemistry. Kaplan-Meier and Cox regression models were used to assess the prognostic value of both HBx protein and LKB1 proteins in patients with hepatocellular carcinoma. RESULTS Mechanistically, LKB1 expression was decreased at the transcriptional level after inactivation of p53 by HBx protein. Decreases in LKB1 expression were also associated with HBx protein-mediated colony formation and invasive capabilities. HBx protein, LKB1, and a combination of both proteins had prognostic significance for overall survival and relapse-free survival in our study population. CONCLUSION The results from cell line experiments and evaluation of patient prognosis according to expression of HBx protein and LKB1 in their HCC strongly support the hypothesis that decreases in LKB1 expression by HBx protein-mediated p53 inactivation may play an important role in HBV-associated hepatocellular tumorigenesis.
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Affiliation(s)
- Cheng-Chung Wu
- Department of General Surgery, Taichung Veterans General Hospital, Taichung, Taiwan
| | - De-Wei Wu
- Graduate Institute of Cancer Biology and Drug Discovery, Taipei Medical University, Taipei, Taiwan
| | - Ying-Yu Lin
- Graduate Institute of Cancer Biology and Drug Discovery, Taipei Medical University, Taipei, Taiwan
| | - Po-Lin Lin
- Graduate Institute of Cancer Biology and Drug Discovery, Taipei Medical University, Taipei, Taiwan
| | - Huei Lee
- Graduate Institute of Cancer Biology and Drug Discovery, Taipei Medical University, Taipei, Taiwan.
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Chen Y, Wang Q, Wang Q, Liu H, Zhou F, Zhang Y, Yuan M, Zhao C, Guan Y, Wang X. DDX3 binding with CK1ε was closely related to motor neuron degeneration of ALS by affecting neurite outgrowth. Am J Transl Res 2017; 9:4627-4639. [PMID: 29118923 PMCID: PMC5666070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Accepted: 10/14/2017] [Indexed: 06/07/2023]
Abstract
Amyotrophic lateral sclerosis (ALS) is a chronic neurodegenerative disease characterized by progressive degeneration of motor neurons. The pathogenesis of ALS remains largely unknown. RNA helicase DDX3 is a multifunctional protein involved in several steps of gene expression. Casein kinase 1ε (CK1ε) is an important signal molecule of Wnt signaling pathway and is closely related to neurite growth. However, the roles of DDX3 and CK1ε in the pathogenesis of ALS remain unclear. In this study, we first investigated the expression of DDX3 and CK1ε in the spinal cord of SOD1-G93A ALS transgenic mice using RT-PCR, Western blot and immunohistochemical technique. Results showed that the altered expression of DDX3 and CK1ε was found in the spinal cord of ALS mice. DDX3 and CK1ε positive cells were mainly distributed in the anterior horn of spinal cord and co-localized with neurons not with glial cells, suggesting that the altered expression of DDX3 and CK1ε was closely related to motor neuron degeneration of ALS. Moreover, we selected NSC34 cell line and transfected pEGFP-G93A-SOD1 plasmid to further examine the mechanism. Knockdown of DDX3 that uses small interfering RNA (siRNA) decreased the mRNA and protein levels of CK1ε significantly and inhibited neurite outgrowth of SOD1 mutant NSC34 cells in vitro. Co-immunoprecipitation kit confirmed that DDX3 could band with CK1ε in vivo. Our data suggested that DDX3 binding with CK1ε was closely related to motor neuron degeneration of ALS by affecting neurite outgrowth. Thus, elucidating the underlying mechanisms of ALS is crucial for future development of ALS treatments.
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Affiliation(s)
- Yanchun Chen
- Department of Histology and Embryology, Weifang Medical UniversityWeifang, Shandong, PR China
| | - Qing Wang
- Department of Human Anatomy, Weifang Medical UniversityWeifang, Shandong, PR China
| | - Qiaozhen Wang
- Department of Human Anatomy, Weifang Medical UniversityWeifang, Shandong, PR China
| | - Huancai Liu
- Department of Joint Surgery, Affiliated Hospital, Weifang Medical UniversityWeifang, Shandong, PR China
| | - Fenghua Zhou
- Department of Pathology, Weifang Medical UniversityWeifang, Shandong, PR China
| | - Yawen Zhang
- Department of Histology and Embryology, Weifang Medical UniversityWeifang, Shandong, PR China
| | - Meng Yuan
- Department of Histology and Embryology, Weifang Medical UniversityWeifang, Shandong, PR China
| | - Chunyan Zhao
- Department of Histology and Embryology, Weifang Medical UniversityWeifang, Shandong, PR China
| | - Yingjun Guan
- Department of Histology and Embryology, Weifang Medical UniversityWeifang, Shandong, PR China
| | - Xin Wang
- Department of Histology and Embryology, Weifang Medical UniversityWeifang, Shandong, PR China
- Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical SchoolBoston, MA, USA
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29
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DDX3 localizes to the centrosome and prevents multipolar mitosis by epigenetically and translationally modulating p53 expression. Sci Rep 2017; 7:9411. [PMID: 28842590 PMCID: PMC5573351 DOI: 10.1038/s41598-017-09779-w] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Accepted: 07/27/2017] [Indexed: 02/07/2023] Open
Abstract
The DEAD-box RNA helicase DDX3 plays divergent roles in tumorigenesis, however, its function in mitosis is unclear. Immunofluorescence indicated that DDX3 localized to centrosome throughout the cell cycle and colocalized with centrosome-associated p53 during mitosis in HCT116 and U2OS cells. DDX3 depletion promoted chromosome misalignment, segregation defects and multipolar mitosis, eventually leading to G2/M delay and cell death. DDX3 prevented multipolar mitosis by inactivation and coalescence of supernumerary centrosomes. DDX3 silencing suppressed Ser15 phosphorylation of p53 which is required for p53 centrosomal localization. Additionally, knockout of p53 dramatically diminished the association of DDX3 with centrosome, which was rescued by overexpression of the centrosomal targeting-defective p53 S15A mutant, indicating that centrosomal localization of DDX3 is p53 dependent but not through centrosomal location of p53. Furthermore, DDX3 knockdown suppressed p53 transcription through activation of DNA methyltransferases (DNMTs) along with hypermethylation of p53 promoter and promoting the binding of repressive histone marks to p53 promoter. Moreover, DDX3 modulated p53 mRNA translation. Taken together, our study suggests that DDX3 regulates epigenetic transcriptional and translational activation of p53 and colocalizes with p53 at centrosome during mitosis to ensure proper mitotic progression and genome stability, which supports the tumor-suppressive role of DDX3.
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He L, Chen Y, Wu Y, Xu Y, Zhang Z, Liu Z. Nucleic acid sensing pattern recognition receptors in the development of colorectal cancer and colitis. Cell Mol Life Sci 2017; 74:2395-2411. [PMID: 28224203 PMCID: PMC11107753 DOI: 10.1007/s00018-017-2477-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Revised: 01/02/2017] [Accepted: 01/26/2017] [Indexed: 12/16/2022]
Abstract
Colorectal cancer (CRC) is a leading cause of cancer-related deaths that is often associated with inflammation initiated by activation of pattern recognition receptors (PRRs). Nucleic acid sensing PRRs are one of the major subsets of PRRs that sense nucleic acid (DNA and RNA), mainly including some members of Toll-like receptors (TLR3, 7, 8, 9), AIM2-like receptors (AIM2, IFI16), STING, cGAS, RNA polymerase III, and DExD/H box nucleic acid helicases (such as RIG-I like receptors (RIG-I, MDA5, LPG2), DDX1, 3, 5, 7, 17, 21, 41, 60, and DHX9, 36). Activation of these receptors eventually leads to the release of cytokines and activation of immune cells, which are well known to play crucial roles in host defense against intracellular bacterial and virus infection. However, the functions of these nucleic acid sensing PRRs in the other diseases such as CRC and colitis remain largely unknown. Recent studies indicated that nucleic acid sensing PRRs contribute to CRC and/or colitis development, and therapeutic modulation of nucleic acid sensing PRRs may reduce the risk of CRC development. However, until now, a comprehensive review on the role of nucleic acid sensing PRRs in CRC and colitis is still lacking. This review provided an overview of the roles as well as the mechanisms of these nucleic acid sensing PRRs (AIM2, STING, cGAS, RIG-I and its downstream molecules, DDX3, 5, 6,17, and DHX9, 36) in CRC and colitis, which may aid the diagnosis, therapy, and prognostic prediction of CRC and colitis.
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Affiliation(s)
- Liangmei He
- Gannan Medical University, Ganzhou, Jiangxi, 341000, China
| | - Yayun Chen
- Gannan Medical University, Ganzhou, Jiangxi, 341000, China
| | - Yuanbing Wu
- Gannan Medical University, Ganzhou, Jiangxi, 341000, China
| | - Ying Xu
- School of Basic Medicine, Gannan Medical University, Ganzhou, 341000, Jiangxi, China
| | - Zixiang Zhang
- The First Affiliated Hospital of Gannan Medical University, Gannan Medical University, Ganzhou, 341000, Jiangxi, China.
| | - Zhiping Liu
- School of Basic Medicine, Gannan Medical University, Ganzhou, 341000, Jiangxi, China.
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31
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Bao Z, Xu X, Liu Y, Chao H, Lin C, Li Z, You Y, Liu N, Ji J. CBX7 negatively regulates migration and invasion in glioma via Wnt/β-catenin pathway inactivation. Oncotarget 2017; 8:39048-39063. [PMID: 28388562 PMCID: PMC5503594 DOI: 10.18632/oncotarget.16587] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 03/09/2017] [Indexed: 01/05/2023] Open
Abstract
CBX7, a member of the Polycomb-group proteins, plays a significant role in normal and cancerous tissues and has been defined as a tumor suppressor in thyroid, breast and pancreatic cancers. However, its function in glioma remains undefined. CBX7 expression is decreased in glioma, especially in higher grade cases, according to data in the CGGA, GSE16001 and TCGA databases. Further experimental evidence has shown that exogenous CBX7 overexpression induced apoptosis and inhibited cell proliferation, colony formation and migration of glioma cells. In this study, we show that the invasive ability of glioma cells was decreased following CBX7 overexpression and CBX7 overexpression was associated with Wnt/β-catenin pathway inhibition, which also decreased downstream expression of ZEB1, a core epithelial-to-mesenchymal transition factor. This reduction in Wnt signaling is controlled by DKK1, a specific Wnt/β-catenin inhibitor. CBX7 enhances DKK1 expression by binding the DKK1 promoter, as shown in Luciferase reporter assays. Our data confirm that CBX7 inhibits EMT and invasion in glioma, which is manifested by influencing the expression of MMP2, MMP9, E-cadherin, N-cadherin and Vimentin in LN229, T98G cells and primary glioma cells (PGC). Furthermore, as a tumor suppressor, CBX7 expression is pivotal to reduce tumor invasion and evaluate prognosis.
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Affiliation(s)
- Zhongyuan Bao
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Xiupeng Xu
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yinlong Liu
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Honglu Chao
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Chao Lin
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Zheng Li
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yongping You
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Ning Liu
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jing Ji
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
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32
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Chen H, Lu W, Huang C, Ding K, Xia D, Wu Y, Cai M. Prognostic significance of ZEB1 and ZEB2 in digestive cancers: a cohort-based analysis and secondary analysis. Oncotarget 2017; 8:31435-31448. [PMID: 28416756 PMCID: PMC5458220 DOI: 10.18632/oncotarget.15634] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2016] [Accepted: 11/24/2016] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Digestive cancers are common malignancies worldwide, however there are few effective prognostic markers available. In this study we comprehensively investigated the prognostic significance of ZEB1 and ZEB2 in digestive cancers. METHODS Electronic databases were searched and studies met the selection criteria were included. Study information was recorded and quality assessment was performed according to the REMARK guideline. Hazard ratios and its corresponding 95% confidence intervals were extracted and pooled. Sensitivity analyses, subgroup analyses, cumulative meta-analyses and secondary analyses were also performed to increase the stability and reliability of our results. RESULTS 24 cohort studies were included in the study. High ZEB1 and ZEB2 levels predicted poor overall survival, meanwhile high ZEB2 levels predicted poor disease free survival for digestive cancer patients. From subgroup analyses we observed ZEB1 was found to be significantly associated with poor overall survival for patients with pancreatic cancer, gastric cancer and colorectal cancer, while ZEB2 was found to be significantly associated with poor overall survival for patients with hepatocellular carcinoma and gastric cancer. Furthermore, by conducting secondary analyses we confirmed both ZEB1 and ZEB2 played important roles in gastric cancer prediction. In addition, we found high ZEB1 and ZEB2 expression were significantly associated with depth of invasion, lymph node metastasis and TNM stage in digestive cancer patients. CONCLUSIONS The present study validated the prognostic value and clinicopathological association of ZEB1 and ZEB2 in digestive cancers, especially in gastric cancer.
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Affiliation(s)
- Huihui Chen
- Department of Oncology, Second Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, China
| | - Wei Lu
- Department of Oncology, Second Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, China
- Department of Toxicology, Zhejiang University School of Public Health, Hangzhou, China
| | - Chongjie Huang
- Department of Anorectal Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Kefeng Ding
- Department of Oncology, Second Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, China
| | - Dajing Xia
- Department of Toxicology, Zhejiang University School of Public Health, Hangzhou, China
| | - Yihua Wu
- Department of Toxicology, Zhejiang University School of Public Health, Hangzhou, China
- Department of Epidemiology and Health Statistics, Zhejiang University School of Public Health, Hangzhou, China
| | - Mao Cai
- Department of Anorectal Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
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33
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Dysregulation of Fra1 expression by Wnt/β-catenin signalling promotes glioma aggressiveness through epithelial-mesenchymal transition. Biosci Rep 2017; 37:BSR20160643. [PMID: 28232512 PMCID: PMC5469333 DOI: 10.1042/bsr20160643] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 02/12/2017] [Accepted: 02/22/2017] [Indexed: 01/08/2023] Open
Abstract
Aberrant expression of Fos-related antigen-1 (Fra1) is commonly elevated in various malignant cancers and is strongly implicated in invasion and metastasis. However, the molecular mechanisms underlying its dysregulation in human glioma remain poorly understood. In the present study, we demonstrate that up-regulation of Fra1 plays a crucial role in the glioma aggressiveness and epithelial–mesenchymal transition (EMT) activated by Wnt/β-catenin signal pathway. In glioma cells, activation of Wnt/β-catenin signalling by Wnt3a administration obviously induced EMT and directly activated the transcription of Fra1. Phenotype experiments revealed that up-regulation of Fra1 induced by Wnt/β-catenin signalling drove the EMT of glioma cells. Furthermore, it was found that the cisplatin resistance acquired by Wnt/β-catenin signalling activation depended on increased expression of Fra1. Analysis of clinical specimens verified a positive correlation between Fra1 and β-catenin as well as a poor prognosis in glioma patients with double-high expressions of them. These findings indicate that an aberrant Wnt/β-catenin signalling leads to the EMT and drug resistance of glioma via Fra1 induction, which suggests novel therapeutic strategies for the malignant disease.
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Wu DW, Lin PL, Wang L, Huang CC, Lee H. The YAP1/SIX2 axis is required for DDX3-mediated tumor aggressiveness and cetuximab resistance in KRAS-wild-type colorectal cancer. Am J Cancer Res 2017; 7:1114-1132. [PMID: 28435452 PMCID: PMC5399580 DOI: 10.7150/thno.18175] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 01/04/2017] [Indexed: 12/13/2022] Open
Abstract
The mechanism underlying tumor aggressiveness and cetuximab (CTX) resistance in KRAS-wild-type (KRAS -WT) colorectal cancer remains obscure. We here provide evidence that DDX3 promoted soft agar growth and invasiveness of KRAS-WT cells, as already confirmed in KRAS-mutated cells. Mechanistically, increased KRAS expression induced ROS production, which elevated HIF-1α and YAP1 expression. Increased HIF-1α persistently promoted DDX3 expression via a KRAS/ROS/HIF-1α feedback loop. DDX3-mediated aggressiveness and CTX resistance were regulated by the YAP1/SIX2 axis in KRAS-WT cells and further confirmed in animal models. Kaplan-Meier and Cox regression analysis indicated that DDX3, KRAS, and YAP1 expression had prognostic value for OS and RFS in KRAS-WT and KRAS-mutated tumors, but SIX2 and YAP1/SIX2 were prognostic value only in KRAS-WT patients. The observation from patients seemed to support the mechanistic action of cell and animal models. We therefore suggest that combining YAP1 inhibitors with CTX may therefore suppress DDX3-mediated tumor aggressiveness and enhance CTX sensitivity in KRAS-WT colorectal cancer.
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35
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Cai W, Xiong Chen Z, Rane G, Satendra Singh S, Choo Z, Wang C, Yuan Y, Zea Tan T, Arfuso F, Yap CT, Pongor LS, Yang H, Lee MB, Cher Goh B, Sethi G, Benoukraf T, Tergaonkar V, Prem Kumar A. Wanted DEAD/H or Alive: Helicases Winding Up in Cancers. J Natl Cancer Inst 2017; 109:2957323. [PMID: 28122908 DOI: 10.1093/jnci/djw278] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 09/08/2016] [Accepted: 10/20/2016] [Indexed: 12/23/2022] Open
Abstract
Cancer is one of the most studied areas of human biology over the past century. Despite having attracted much attention, hype, and investments, the search to find a cure for cancer remains an uphill battle. Recent discoveries that challenged the central dogma of molecular biology not only further increase the complexity but also demonstrate how various types of noncoding RNAs such as microRNA and long noncoding RNA, as well as their related processes such as RNA editing, are important in regulating gene expression. Parallel to this aspect, an increasing number of reports have focused on a family of proteins known as DEAD/H-box helicases involved in RNA metabolism, regulation of long and short noncoding RNAs, and novel roles as "editing helicases" and their association with cancers. This review summarizes recent findings on the roles of RNA helicases in various cancers, which are broadly classified into adult solid tumors, childhood solid tumors, leukemia, and cancer stem cells. The potential small molecule inhibitors of helicases and their therapeutic value are also discussed. In addition, analyzing next-generation sequencing data obtained from public portals and reviewing existing literature, we provide new insights on the potential of DEAD/H-box helicases to act as pharmacological drug targets in cancers.
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Affiliation(s)
- Wanpei Cai
- Affiliations of authors: Cancer Science Institute of Singapore, National University of Singapore, Singapore (WC, GR, SSS, CW, YY, TZT, HY, BCG, TB, APK); Departments of Pharmacology (WC, GR, SSS, CW, BCG, GS, APK), Physiology (ZXC, ZC, CTY), and Biochemistry (VT), Yong Loo Lin School of Medicine, National University of Singapore, Singapore; KK Women's and Children's Hospital, Singapore (ZXC); Stem Cell and Cancer Biology Laboratory (FA), School of Biomedical Sciences (GS, APK), Curtin Health Innovation Research Institute, Curtin Medical School (APK), Curtin University, Perth, WA, Australia; National University Cancer Institute, National University Health System, Singapore (CTY, BCG, APK); 2 Department of Pediatrics, Semmelweis University, Budapest, Hungary (LSP); MTA TTK Lendület Cancer Biomarker Research Group, Research Centre for Natural Sciences, Budapest, Hungary (LSP); Department of Renal Medicine (MBL) and Department of Haematology-Oncology (BCG), National University Health System, Singapore; Institute of Molecular and Cell Biology (IMCB), A*STAR (Agency for Science, Technology and Research), Singapore (VT); Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, Australia (VT); Department of Biological Sciences, University of North Texas, Denton, TX (APK)
| | - Zhi Xiong Chen
- Affiliations of authors: Cancer Science Institute of Singapore, National University of Singapore, Singapore (WC, GR, SSS, CW, YY, TZT, HY, BCG, TB, APK); Departments of Pharmacology (WC, GR, SSS, CW, BCG, GS, APK), Physiology (ZXC, ZC, CTY), and Biochemistry (VT), Yong Loo Lin School of Medicine, National University of Singapore, Singapore; KK Women's and Children's Hospital, Singapore (ZXC); Stem Cell and Cancer Biology Laboratory (FA), School of Biomedical Sciences (GS, APK), Curtin Health Innovation Research Institute, Curtin Medical School (APK), Curtin University, Perth, WA, Australia; National University Cancer Institute, National University Health System, Singapore (CTY, BCG, APK); 2 Department of Pediatrics, Semmelweis University, Budapest, Hungary (LSP); MTA TTK Lendület Cancer Biomarker Research Group, Research Centre for Natural Sciences, Budapest, Hungary (LSP); Department of Renal Medicine (MBL) and Department of Haematology-Oncology (BCG), National University Health System, Singapore; Institute of Molecular and Cell Biology (IMCB), A*STAR (Agency for Science, Technology and Research), Singapore (VT); Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, Australia (VT); Department of Biological Sciences, University of North Texas, Denton, TX (APK)
| | - Grishma Rane
- Affiliations of authors: Cancer Science Institute of Singapore, National University of Singapore, Singapore (WC, GR, SSS, CW, YY, TZT, HY, BCG, TB, APK); Departments of Pharmacology (WC, GR, SSS, CW, BCG, GS, APK), Physiology (ZXC, ZC, CTY), and Biochemistry (VT), Yong Loo Lin School of Medicine, National University of Singapore, Singapore; KK Women's and Children's Hospital, Singapore (ZXC); Stem Cell and Cancer Biology Laboratory (FA), School of Biomedical Sciences (GS, APK), Curtin Health Innovation Research Institute, Curtin Medical School (APK), Curtin University, Perth, WA, Australia; National University Cancer Institute, National University Health System, Singapore (CTY, BCG, APK); 2 Department of Pediatrics, Semmelweis University, Budapest, Hungary (LSP); MTA TTK Lendület Cancer Biomarker Research Group, Research Centre for Natural Sciences, Budapest, Hungary (LSP); Department of Renal Medicine (MBL) and Department of Haematology-Oncology (BCG), National University Health System, Singapore; Institute of Molecular and Cell Biology (IMCB), A*STAR (Agency for Science, Technology and Research), Singapore (VT); Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, Australia (VT); Department of Biological Sciences, University of North Texas, Denton, TX (APK)
| | - Shikha Satendra Singh
- Affiliations of authors: Cancer Science Institute of Singapore, National University of Singapore, Singapore (WC, GR, SSS, CW, YY, TZT, HY, BCG, TB, APK); Departments of Pharmacology (WC, GR, SSS, CW, BCG, GS, APK), Physiology (ZXC, ZC, CTY), and Biochemistry (VT), Yong Loo Lin School of Medicine, National University of Singapore, Singapore; KK Women's and Children's Hospital, Singapore (ZXC); Stem Cell and Cancer Biology Laboratory (FA), School of Biomedical Sciences (GS, APK), Curtin Health Innovation Research Institute, Curtin Medical School (APK), Curtin University, Perth, WA, Australia; National University Cancer Institute, National University Health System, Singapore (CTY, BCG, APK); 2 Department of Pediatrics, Semmelweis University, Budapest, Hungary (LSP); MTA TTK Lendület Cancer Biomarker Research Group, Research Centre for Natural Sciences, Budapest, Hungary (LSP); Department of Renal Medicine (MBL) and Department of Haematology-Oncology (BCG), National University Health System, Singapore; Institute of Molecular and Cell Biology (IMCB), A*STAR (Agency for Science, Technology and Research), Singapore (VT); Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, Australia (VT); Department of Biological Sciences, University of North Texas, Denton, TX (APK)
| | - Zhang'e Choo
- Affiliations of authors: Cancer Science Institute of Singapore, National University of Singapore, Singapore (WC, GR, SSS, CW, YY, TZT, HY, BCG, TB, APK); Departments of Pharmacology (WC, GR, SSS, CW, BCG, GS, APK), Physiology (ZXC, ZC, CTY), and Biochemistry (VT), Yong Loo Lin School of Medicine, National University of Singapore, Singapore; KK Women's and Children's Hospital, Singapore (ZXC); Stem Cell and Cancer Biology Laboratory (FA), School of Biomedical Sciences (GS, APK), Curtin Health Innovation Research Institute, Curtin Medical School (APK), Curtin University, Perth, WA, Australia; National University Cancer Institute, National University Health System, Singapore (CTY, BCG, APK); 2 Department of Pediatrics, Semmelweis University, Budapest, Hungary (LSP); MTA TTK Lendület Cancer Biomarker Research Group, Research Centre for Natural Sciences, Budapest, Hungary (LSP); Department of Renal Medicine (MBL) and Department of Haematology-Oncology (BCG), National University Health System, Singapore; Institute of Molecular and Cell Biology (IMCB), A*STAR (Agency for Science, Technology and Research), Singapore (VT); Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, Australia (VT); Department of Biological Sciences, University of North Texas, Denton, TX (APK)
| | - Chao Wang
- Affiliations of authors: Cancer Science Institute of Singapore, National University of Singapore, Singapore (WC, GR, SSS, CW, YY, TZT, HY, BCG, TB, APK); Departments of Pharmacology (WC, GR, SSS, CW, BCG, GS, APK), Physiology (ZXC, ZC, CTY), and Biochemistry (VT), Yong Loo Lin School of Medicine, National University of Singapore, Singapore; KK Women's and Children's Hospital, Singapore (ZXC); Stem Cell and Cancer Biology Laboratory (FA), School of Biomedical Sciences (GS, APK), Curtin Health Innovation Research Institute, Curtin Medical School (APK), Curtin University, Perth, WA, Australia; National University Cancer Institute, National University Health System, Singapore (CTY, BCG, APK); 2 Department of Pediatrics, Semmelweis University, Budapest, Hungary (LSP); MTA TTK Lendület Cancer Biomarker Research Group, Research Centre for Natural Sciences, Budapest, Hungary (LSP); Department of Renal Medicine (MBL) and Department of Haematology-Oncology (BCG), National University Health System, Singapore; Institute of Molecular and Cell Biology (IMCB), A*STAR (Agency for Science, Technology and Research), Singapore (VT); Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, Australia (VT); Department of Biological Sciences, University of North Texas, Denton, TX (APK)
| | - Yi Yuan
- Affiliations of authors: Cancer Science Institute of Singapore, National University of Singapore, Singapore (WC, GR, SSS, CW, YY, TZT, HY, BCG, TB, APK); Departments of Pharmacology (WC, GR, SSS, CW, BCG, GS, APK), Physiology (ZXC, ZC, CTY), and Biochemistry (VT), Yong Loo Lin School of Medicine, National University of Singapore, Singapore; KK Women's and Children's Hospital, Singapore (ZXC); Stem Cell and Cancer Biology Laboratory (FA), School of Biomedical Sciences (GS, APK), Curtin Health Innovation Research Institute, Curtin Medical School (APK), Curtin University, Perth, WA, Australia; National University Cancer Institute, National University Health System, Singapore (CTY, BCG, APK); 2 Department of Pediatrics, Semmelweis University, Budapest, Hungary (LSP); MTA TTK Lendület Cancer Biomarker Research Group, Research Centre for Natural Sciences, Budapest, Hungary (LSP); Department of Renal Medicine (MBL) and Department of Haematology-Oncology (BCG), National University Health System, Singapore; Institute of Molecular and Cell Biology (IMCB), A*STAR (Agency for Science, Technology and Research), Singapore (VT); Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, Australia (VT); Department of Biological Sciences, University of North Texas, Denton, TX (APK)
| | - Tuan Zea Tan
- Affiliations of authors: Cancer Science Institute of Singapore, National University of Singapore, Singapore (WC, GR, SSS, CW, YY, TZT, HY, BCG, TB, APK); Departments of Pharmacology (WC, GR, SSS, CW, BCG, GS, APK), Physiology (ZXC, ZC, CTY), and Biochemistry (VT), Yong Loo Lin School of Medicine, National University of Singapore, Singapore; KK Women's and Children's Hospital, Singapore (ZXC); Stem Cell and Cancer Biology Laboratory (FA), School of Biomedical Sciences (GS, APK), Curtin Health Innovation Research Institute, Curtin Medical School (APK), Curtin University, Perth, WA, Australia; National University Cancer Institute, National University Health System, Singapore (CTY, BCG, APK); 2 Department of Pediatrics, Semmelweis University, Budapest, Hungary (LSP); MTA TTK Lendület Cancer Biomarker Research Group, Research Centre for Natural Sciences, Budapest, Hungary (LSP); Department of Renal Medicine (MBL) and Department of Haematology-Oncology (BCG), National University Health System, Singapore; Institute of Molecular and Cell Biology (IMCB), A*STAR (Agency for Science, Technology and Research), Singapore (VT); Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, Australia (VT); Department of Biological Sciences, University of North Texas, Denton, TX (APK)
| | - Frank Arfuso
- Affiliations of authors: Cancer Science Institute of Singapore, National University of Singapore, Singapore (WC, GR, SSS, CW, YY, TZT, HY, BCG, TB, APK); Departments of Pharmacology (WC, GR, SSS, CW, BCG, GS, APK), Physiology (ZXC, ZC, CTY), and Biochemistry (VT), Yong Loo Lin School of Medicine, National University of Singapore, Singapore; KK Women's and Children's Hospital, Singapore (ZXC); Stem Cell and Cancer Biology Laboratory (FA), School of Biomedical Sciences (GS, APK), Curtin Health Innovation Research Institute, Curtin Medical School (APK), Curtin University, Perth, WA, Australia; National University Cancer Institute, National University Health System, Singapore (CTY, BCG, APK); 2 Department of Pediatrics, Semmelweis University, Budapest, Hungary (LSP); MTA TTK Lendület Cancer Biomarker Research Group, Research Centre for Natural Sciences, Budapest, Hungary (LSP); Department of Renal Medicine (MBL) and Department of Haematology-Oncology (BCG), National University Health System, Singapore; Institute of Molecular and Cell Biology (IMCB), A*STAR (Agency for Science, Technology and Research), Singapore (VT); Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, Australia (VT); Department of Biological Sciences, University of North Texas, Denton, TX (APK)
| | - Celestial T Yap
- Affiliations of authors: Cancer Science Institute of Singapore, National University of Singapore, Singapore (WC, GR, SSS, CW, YY, TZT, HY, BCG, TB, APK); Departments of Pharmacology (WC, GR, SSS, CW, BCG, GS, APK), Physiology (ZXC, ZC, CTY), and Biochemistry (VT), Yong Loo Lin School of Medicine, National University of Singapore, Singapore; KK Women's and Children's Hospital, Singapore (ZXC); Stem Cell and Cancer Biology Laboratory (FA), School of Biomedical Sciences (GS, APK), Curtin Health Innovation Research Institute, Curtin Medical School (APK), Curtin University, Perth, WA, Australia; National University Cancer Institute, National University Health System, Singapore (CTY, BCG, APK); 2 Department of Pediatrics, Semmelweis University, Budapest, Hungary (LSP); MTA TTK Lendület Cancer Biomarker Research Group, Research Centre for Natural Sciences, Budapest, Hungary (LSP); Department of Renal Medicine (MBL) and Department of Haematology-Oncology (BCG), National University Health System, Singapore; Institute of Molecular and Cell Biology (IMCB), A*STAR (Agency for Science, Technology and Research), Singapore (VT); Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, Australia (VT); Department of Biological Sciences, University of North Texas, Denton, TX (APK)
| | - Lorinc S Pongor
- Affiliations of authors: Cancer Science Institute of Singapore, National University of Singapore, Singapore (WC, GR, SSS, CW, YY, TZT, HY, BCG, TB, APK); Departments of Pharmacology (WC, GR, SSS, CW, BCG, GS, APK), Physiology (ZXC, ZC, CTY), and Biochemistry (VT), Yong Loo Lin School of Medicine, National University of Singapore, Singapore; KK Women's and Children's Hospital, Singapore (ZXC); Stem Cell and Cancer Biology Laboratory (FA), School of Biomedical Sciences (GS, APK), Curtin Health Innovation Research Institute, Curtin Medical School (APK), Curtin University, Perth, WA, Australia; National University Cancer Institute, National University Health System, Singapore (CTY, BCG, APK); 2 Department of Pediatrics, Semmelweis University, Budapest, Hungary (LSP); MTA TTK Lendület Cancer Biomarker Research Group, Research Centre for Natural Sciences, Budapest, Hungary (LSP); Department of Renal Medicine (MBL) and Department of Haematology-Oncology (BCG), National University Health System, Singapore; Institute of Molecular and Cell Biology (IMCB), A*STAR (Agency for Science, Technology and Research), Singapore (VT); Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, Australia (VT); Department of Biological Sciences, University of North Texas, Denton, TX (APK)
| | - Henry Yang
- Affiliations of authors: Cancer Science Institute of Singapore, National University of Singapore, Singapore (WC, GR, SSS, CW, YY, TZT, HY, BCG, TB, APK); Departments of Pharmacology (WC, GR, SSS, CW, BCG, GS, APK), Physiology (ZXC, ZC, CTY), and Biochemistry (VT), Yong Loo Lin School of Medicine, National University of Singapore, Singapore; KK Women's and Children's Hospital, Singapore (ZXC); Stem Cell and Cancer Biology Laboratory (FA), School of Biomedical Sciences (GS, APK), Curtin Health Innovation Research Institute, Curtin Medical School (APK), Curtin University, Perth, WA, Australia; National University Cancer Institute, National University Health System, Singapore (CTY, BCG, APK); 2 Department of Pediatrics, Semmelweis University, Budapest, Hungary (LSP); MTA TTK Lendület Cancer Biomarker Research Group, Research Centre for Natural Sciences, Budapest, Hungary (LSP); Department of Renal Medicine (MBL) and Department of Haematology-Oncology (BCG), National University Health System, Singapore; Institute of Molecular and Cell Biology (IMCB), A*STAR (Agency for Science, Technology and Research), Singapore (VT); Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, Australia (VT); Department of Biological Sciences, University of North Texas, Denton, TX (APK)
| | - Martin B Lee
- Affiliations of authors: Cancer Science Institute of Singapore, National University of Singapore, Singapore (WC, GR, SSS, CW, YY, TZT, HY, BCG, TB, APK); Departments of Pharmacology (WC, GR, SSS, CW, BCG, GS, APK), Physiology (ZXC, ZC, CTY), and Biochemistry (VT), Yong Loo Lin School of Medicine, National University of Singapore, Singapore; KK Women's and Children's Hospital, Singapore (ZXC); Stem Cell and Cancer Biology Laboratory (FA), School of Biomedical Sciences (GS, APK), Curtin Health Innovation Research Institute, Curtin Medical School (APK), Curtin University, Perth, WA, Australia; National University Cancer Institute, National University Health System, Singapore (CTY, BCG, APK); 2 Department of Pediatrics, Semmelweis University, Budapest, Hungary (LSP); MTA TTK Lendület Cancer Biomarker Research Group, Research Centre for Natural Sciences, Budapest, Hungary (LSP); Department of Renal Medicine (MBL) and Department of Haematology-Oncology (BCG), National University Health System, Singapore; Institute of Molecular and Cell Biology (IMCB), A*STAR (Agency for Science, Technology and Research), Singapore (VT); Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, Australia (VT); Department of Biological Sciences, University of North Texas, Denton, TX (APK)
| | - Boon Cher Goh
- Affiliations of authors: Cancer Science Institute of Singapore, National University of Singapore, Singapore (WC, GR, SSS, CW, YY, TZT, HY, BCG, TB, APK); Departments of Pharmacology (WC, GR, SSS, CW, BCG, GS, APK), Physiology (ZXC, ZC, CTY), and Biochemistry (VT), Yong Loo Lin School of Medicine, National University of Singapore, Singapore; KK Women's and Children's Hospital, Singapore (ZXC); Stem Cell and Cancer Biology Laboratory (FA), School of Biomedical Sciences (GS, APK), Curtin Health Innovation Research Institute, Curtin Medical School (APK), Curtin University, Perth, WA, Australia; National University Cancer Institute, National University Health System, Singapore (CTY, BCG, APK); 2 Department of Pediatrics, Semmelweis University, Budapest, Hungary (LSP); MTA TTK Lendület Cancer Biomarker Research Group, Research Centre for Natural Sciences, Budapest, Hungary (LSP); Department of Renal Medicine (MBL) and Department of Haematology-Oncology (BCG), National University Health System, Singapore; Institute of Molecular and Cell Biology (IMCB), A*STAR (Agency for Science, Technology and Research), Singapore (VT); Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, Australia (VT); Department of Biological Sciences, University of North Texas, Denton, TX (APK)
| | - Gautam Sethi
- Affiliations of authors: Cancer Science Institute of Singapore, National University of Singapore, Singapore (WC, GR, SSS, CW, YY, TZT, HY, BCG, TB, APK); Departments of Pharmacology (WC, GR, SSS, CW, BCG, GS, APK), Physiology (ZXC, ZC, CTY), and Biochemistry (VT), Yong Loo Lin School of Medicine, National University of Singapore, Singapore; KK Women's and Children's Hospital, Singapore (ZXC); Stem Cell and Cancer Biology Laboratory (FA), School of Biomedical Sciences (GS, APK), Curtin Health Innovation Research Institute, Curtin Medical School (APK), Curtin University, Perth, WA, Australia; National University Cancer Institute, National University Health System, Singapore (CTY, BCG, APK); 2 Department of Pediatrics, Semmelweis University, Budapest, Hungary (LSP); MTA TTK Lendület Cancer Biomarker Research Group, Research Centre for Natural Sciences, Budapest, Hungary (LSP); Department of Renal Medicine (MBL) and Department of Haematology-Oncology (BCG), National University Health System, Singapore; Institute of Molecular and Cell Biology (IMCB), A*STAR (Agency for Science, Technology and Research), Singapore (VT); Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, Australia (VT); Department of Biological Sciences, University of North Texas, Denton, TX (APK)
| | - Touati Benoukraf
- Affiliations of authors: Cancer Science Institute of Singapore, National University of Singapore, Singapore (WC, GR, SSS, CW, YY, TZT, HY, BCG, TB, APK); Departments of Pharmacology (WC, GR, SSS, CW, BCG, GS, APK), Physiology (ZXC, ZC, CTY), and Biochemistry (VT), Yong Loo Lin School of Medicine, National University of Singapore, Singapore; KK Women's and Children's Hospital, Singapore (ZXC); Stem Cell and Cancer Biology Laboratory (FA), School of Biomedical Sciences (GS, APK), Curtin Health Innovation Research Institute, Curtin Medical School (APK), Curtin University, Perth, WA, Australia; National University Cancer Institute, National University Health System, Singapore (CTY, BCG, APK); 2 Department of Pediatrics, Semmelweis University, Budapest, Hungary (LSP); MTA TTK Lendület Cancer Biomarker Research Group, Research Centre for Natural Sciences, Budapest, Hungary (LSP); Department of Renal Medicine (MBL) and Department of Haematology-Oncology (BCG), National University Health System, Singapore; Institute of Molecular and Cell Biology (IMCB), A*STAR (Agency for Science, Technology and Research), Singapore (VT); Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, Australia (VT); Department of Biological Sciences, University of North Texas, Denton, TX (APK)
| | - Vinay Tergaonkar
- Affiliations of authors: Cancer Science Institute of Singapore, National University of Singapore, Singapore (WC, GR, SSS, CW, YY, TZT, HY, BCG, TB, APK); Departments of Pharmacology (WC, GR, SSS, CW, BCG, GS, APK), Physiology (ZXC, ZC, CTY), and Biochemistry (VT), Yong Loo Lin School of Medicine, National University of Singapore, Singapore; KK Women's and Children's Hospital, Singapore (ZXC); Stem Cell and Cancer Biology Laboratory (FA), School of Biomedical Sciences (GS, APK), Curtin Health Innovation Research Institute, Curtin Medical School (APK), Curtin University, Perth, WA, Australia; National University Cancer Institute, National University Health System, Singapore (CTY, BCG, APK); 2 Department of Pediatrics, Semmelweis University, Budapest, Hungary (LSP); MTA TTK Lendület Cancer Biomarker Research Group, Research Centre for Natural Sciences, Budapest, Hungary (LSP); Department of Renal Medicine (MBL) and Department of Haematology-Oncology (BCG), National University Health System, Singapore; Institute of Molecular and Cell Biology (IMCB), A*STAR (Agency for Science, Technology and Research), Singapore (VT); Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, Australia (VT); Department of Biological Sciences, University of North Texas, Denton, TX (APK)
| | - Alan Prem Kumar
- Affiliations of authors: Cancer Science Institute of Singapore, National University of Singapore, Singapore (WC, GR, SSS, CW, YY, TZT, HY, BCG, TB, APK); Departments of Pharmacology (WC, GR, SSS, CW, BCG, GS, APK), Physiology (ZXC, ZC, CTY), and Biochemistry (VT), Yong Loo Lin School of Medicine, National University of Singapore, Singapore; KK Women's and Children's Hospital, Singapore (ZXC); Stem Cell and Cancer Biology Laboratory (FA), School of Biomedical Sciences (GS, APK), Curtin Health Innovation Research Institute, Curtin Medical School (APK), Curtin University, Perth, WA, Australia; National University Cancer Institute, National University Health System, Singapore (CTY, BCG, APK); 2 Department of Pediatrics, Semmelweis University, Budapest, Hungary (LSP); MTA TTK Lendület Cancer Biomarker Research Group, Research Centre for Natural Sciences, Budapest, Hungary (LSP); Department of Renal Medicine (MBL) and Department of Haematology-Oncology (BCG), National University Health System, Singapore; Institute of Molecular and Cell Biology (IMCB), A*STAR (Agency for Science, Technology and Research), Singapore (VT); Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, Australia (VT); Department of Biological Sciences, University of North Texas, Denton, TX (APK)
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Zhao L, Mao Y, Zhao Y, He Y. DDX3X promotes the biogenesis of a subset of miRNAs and the potential roles they played in cancer development. Sci Rep 2016; 6:32739. [PMID: 27586307 PMCID: PMC5009351 DOI: 10.1038/srep32739] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Accepted: 08/15/2016] [Indexed: 12/22/2022] Open
Abstract
DDX3X, located on the X-chromosome, belongs to the DEAD-box RNA helicase family and acts as a key RNA-binding protein to exert its regulatory functions in various biological processes. In this paper, knock-down the expression of DDX3X can affect a subset of miRNA expression levels, especially for miR-1, miR-141, miR-145, miR-19b, miR-20a and miR-34a. Through adopting the immunoprecipitation (IP), RNA immunoprecipitation (RIP), dual luciferase reporter assays, we illustrate that DDX3X could interact with Drosha/DGCR8 complex, elevate the processing activity of Drosha/DGCR8 complex on pri-miRNAs, and increase mature miRNA expression levels. For the studies of potential roles and biological functions of DDX3X-dependent miRNAs and their downstream target genes in multiple cancers, we use the primary data from The Cancer Genome Atlas (TCGA), Ingenuity Pathway Analysis (IPA) and several miRNA target prediction databases, to systematically analyze the expression levels of DDX3X-dependent miRNAs in almost 14 kinds of cancers versus normal tissues, and the essential biological functions for their putative downstream target genes. All these findings will provide us novel insights and directions for thoroughly exploring the regulatory mechanisms of miRNA biogenesis, and shed light on effectively searching the clinical significances and biological roles of DDX3X-dependent miRNAs and their target genes in cancer development.
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Affiliation(s)
- Luqing Zhao
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China.,Department of Pathology, School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, China.,Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Yitao Mao
- Department of Radiology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Yuelong Zhao
- School of Computer Science and Engineering, South China University of Technology, Guangzhou, Guangdong 510640, China
| | - Yanong He
- School of Computer Science and Engineering, South China University of Technology, Guangzhou, Guangdong 510640, China
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