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Abusharkh KAN, Comert Onder F, Çınar V, Hamurcu Z, Ozpolat B, Ay M. A drug repurposing study identifies novel FOXM1 inhibitors with in vitro activity against breast cancer cells. Med Oncol 2024; 41:188. [PMID: 38918225 PMCID: PMC11199234 DOI: 10.1007/s12032-024-02427-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Accepted: 06/10/2024] [Indexed: 06/27/2024]
Abstract
FOXM1, a proto-oncogenic transcription factor, plays a critical role in cancer development and treatment resistance in cancers, particularly in breast cancer. Thus, this study aimed to identify potential FOXM1 inhibitors through computational screening of drug databases, followed by in vitro validation of their inhibitory activity against breast cancer cells. In silico studies involved pharmacophore modeling using the FOXM1 inhibitor, FDI-6, followed by virtual screening of DrugBank and Selleckchem databases. The selected drugs were prepared for molecular docking, and the crystal structure of FOXM1 was pre-processed for docking simulations. In vitro studies included MTT assays to assess cytotoxicity, and Western blot analysis to evaluate protein expression levels. Our study identified Pantoprazole and Rabeprazole as potential FOXM1 inhibitors through in silico screening and molecular docking. Molecular dynamics simulations confirmed stable interactions of these drugs with FOXM1. In vitro experiments showed both Pantoprazole and Rabeprazole exhibited strong FOXM1 inhibition at effective concentrations and that showed inhibition of cell proliferation. Rabeprazole showed the inhibitor activity at 10 µM in BT-20 and MCF-7 cell lines. Pantoprazole exhibited FOXM1 inhibition at 30 µM and in BT-20 cells and at 70 µM in MCF-7 cells, respectively. Our current study provides the first evidence that Rabeprazole and Pantoprazole can bind to FOXM1 and inhibit its activity and downstream signaling, including eEF2K and pEF2, in breast cancer cells. These findings indicate that rabeprazole and pantoprazole inhibit FOXM1 and breast cancer cell proliferation, and they can be used for FOXM1-targeted therapy in breast or other cancers driven by FOXM1.
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Affiliation(s)
- Khaled A N Abusharkh
- Department of Chemistry, School of Graduate Studies, Çanakkale Onsekiz Mart University, 17020, Çanakkale, Türkiye
- Department of Chemistry, Faculty of Science, Natural Products and Drug Research Laboratory, Çanakkale Onsekiz Mart University, 17020, Çanakkale, Türkiye
- Department of Chemistry and Chemical Technology, Faculty of Science and Technology, Al-Quds University, Jerusalem, 20002, Palestine
| | - Ferah Comert Onder
- Department of Medical Biology, Faculty of Medicine, Çanakkale Onsekiz Mart University, 17020, Çanakkale, Türkiye.
| | - Venhar Çınar
- Department of Medical Biology, Faculty of Medicine, Erciyes University, 38039, Kayseri, Türkiye
| | - Zuhal Hamurcu
- Department of Medical Biology, Faculty of Medicine, Erciyes University, 38039, Kayseri, Türkiye
| | - Bulent Ozpolat
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX, 77030, USA.
| | - Mehmet Ay
- Department of Chemistry, Faculty of Science, Natural Products and Drug Research Laboratory, Çanakkale Onsekiz Mart University, 17020, Çanakkale, Türkiye.
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2
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Huang XD, Du L, Cheng XC, Lu YX, Liu QW, Wang YW, Liao YJ, Lin DD, Xiao FJ. OTUB1/NDUFS2 axis promotes pancreatic tumorigenesis through protecting against mitochondrial cell death. Cell Death Discov 2024; 10:190. [PMID: 38653740 DOI: 10.1038/s41420-024-01948-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 03/29/2024] [Accepted: 04/05/2024] [Indexed: 04/25/2024] Open
Abstract
Pancreatic cancer is one of the most fatal cancers in the world. A growing number of studies have begun to demonstrate that mitochondria play a key role in tumorigenesis. Our previous study reveals that NDUFS2 (NADH: ubiquinone oxidoreductase core subunit S2), a core subunit of the mitochondrial respiratory chain complex I, is upregulated in Pancreatic adenocarcinoma (PAAD). However, its role in the development of PAAD remains unknown. Here, we showed that NDUFS2 played a critical role in the survival, proliferation and migration of pancreatic cancer cells by inhibiting mitochondrial cell death. Additionally, protein mass spectrometry indicated that the NDUFS2 was interacted with a deubiquitinase, OTUB1. Overexpression of OTUB1 increased NDUFS2 expression at the protein level, while knockdown of OTUB1 restored the effects in vitro. Accordingly, overexpression and knockdown of OTUB1 phenocopied those of NDUFS2 in pancreatic cancer cells, respectively. Mechanically, NDUFS2 was deubiquitinated by OTUB1 via K48-linked polyubiquitin chains, resulted in an elevated protein stability of NDUFS2. Moreover, the growth of OTUB1-overexpressed pancreatic cancer xenograft tumor was promoted in vivo, while the OTUB1-silenced pancreatic cancer xenograft tumor was inhibited in vivo. In conclusion, we revealed that OTUB1 increased the stability of NDUFS2 in PAAD by deubiquitylation and this axis plays a pivotal role in pancreatic cancer tumorigenesis and development.
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Affiliation(s)
- Xiao-Dong Huang
- Department of General Surgery, Xuanwu Hospital Capital Medical University, Beijing, 100053, PR China
| | - Li Du
- Department of Experimental Hematology and Biochemistry, Beijing Institute of Radiation Medicine, Beijing, 100850, PR China
| | - Xiao-Chen Cheng
- Department of Experimental Hematology and Biochemistry, Beijing Institute of Radiation Medicine, Beijing, 100850, PR China
| | - Yu-Xin Lu
- Department of Experimental Hematology and Biochemistry, Beijing Institute of Radiation Medicine, Beijing, 100850, PR China
| | - Qiao-Wei Liu
- Department of Oncology, Fifth Medical Center, Chinese PLA General Hospital, Beijing, 100039, PR China
| | - Yi-Wu Wang
- Department of Disease Control and Prevention, Chinese PLA The 96601 Military Hospital, Huangshan, 242700, Anhui, PR China
| | - Ya-Jin Liao
- Department of Neurology, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, 42100, Hunan, PR China.
| | - Dong-Dong Lin
- Department of General Surgery, Xuanwu Hospital Capital Medical University, Beijing, 100053, PR China.
| | - Feng-Jun Xiao
- Department of Experimental Hematology and Biochemistry, Beijing Institute of Radiation Medicine, Beijing, 100850, PR China.
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3
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Wu M, Sun L, Song T. OTUB1-mediated inhibition of ubiquitination: a growing list of effectors, multiplex mechanisms, and versatile functions. Front Mol Biosci 2024; 10:1261273. [PMID: 38264570 PMCID: PMC10803509 DOI: 10.3389/fmolb.2023.1261273] [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: 07/19/2023] [Accepted: 12/19/2023] [Indexed: 01/25/2024] Open
Abstract
Protein ubiquitination plays a pivotal role in protein homeostasis. Ubiquitination may regulate the stability, activity, protein-protein interaction, and localization of a protein. Ubiquitination is subject to regulation by two groups of counteracting enzymes, the E3 ubiquitin ligases and deubiquitinases. Consistently, deubiquitinases are involved in essentially all biological processes. OTUB1, an OTU-family deubiquitinase, is a critical regulator of development, cancer, DNA damage response, and immune response. OTUB1 antagonizes the ubiquitination of a wide-spectrum of proteins through at least two different mechanisms. Besides direct deubiquitination, OTUB1 can also inhibit ubiquitination by non-canonically blocking ubiquitin transfer from certain ubiquitin-conjugases (E2). In this review, we start with a general background of protein ubiquitination and deubiquitination. Next, we introduce the basic characteristics of OTUB1 and then elaborate on the updated biological functions of OTUB1. Afterwards, we discuss potential mechanisms underlying the versatility and specificity of OTUB1 functions. In the end, we discuss the perspective that OTUB1 can be a potential therapeutic target for cancer.
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Affiliation(s)
- Miaomiao Wu
- Deparment of Obstetrics and Gynecology, Shuyang Hospital of Traditional Chinese Medicine, Suqian, China
| | - Lidong Sun
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Cell Architecture Research Institute, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Tanjing Song
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Cell Architecture Research Institute, Huazhong University of Science and Technology, Wuhan, Hubei, China
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Jin S, Tsunematsu T, Horiguchi T, Mouri Y, Shao W, Miyoshi K, Hagita H, Sarubo M, Fujiwara N, Qi G, Ishimaru N, Kudo Y. Involvement of the OTUB1-YAP1 axis in driving malignant behaviors of head and neck squamous cell carcinoma. Cancer Med 2023; 12:22156-22169. [PMID: 37986681 PMCID: PMC10757095 DOI: 10.1002/cam4.6735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 10/24/2023] [Accepted: 11/07/2023] [Indexed: 11/22/2023] Open
Abstract
BACKGROUND Comprehending the molecular mechanisms underlying head and neck squamous cell carcinoma (HNSCC) is vital for the development of effective treatment strategies. Deubiquitinating enzymes (DUBs), which regulate ubiquitin-dependent pathways, are potential targets for cancer therapy because of their structural advantages. Here we aimed to identify a potential target for HNSCC treatment among DUBs. METHODS A screening process was conducted using RNA sequencing data and clinical information from HNSCC patients in the TCGA database. A panel of 88 DUBs was analyzed to identify those associated with poor prognosis. Subsequently, HNSCC cells were modified to overexpress specific DUBs, and their effects on cell proliferation and invasion were evaluated. In vivo experiments were performed to validate the findings. RESULTS In HNSCC patients, USP10, USP14, OTUB1, and STAMBP among the screened DUBs were associated with a poor prognosis. Among them, OTUB1 showed the most aggressive characteristics in both in vitro and in vivo experiments. Additionally, OTUB1 regulated the stability and nuclear localization of YAP1, a substrate involved in cell proliferation and invasion. Notably, OTUB1 expression exhibited a positive correlation with the HNSCC-YAP score in HNSCC cells. CONCLUSIONS This study highlights the critical role of OTUB1 in HNSCC progression via modulating YAP1. Targeting the OTUB1-YAP1 axis holds promise as a potential therapeutic strategy for HNSCC treatment.
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Affiliation(s)
- Shengjian Jin
- Department of Oral BioscienceTokushima University Graduate School of Biomedical SciencesTokushimaJapan
| | - Takaaki Tsunematsu
- Department of Oral Molecular PathologyTokushima University Graduate School of Biomedical SciencesTokushimaJapan
| | - Taigo Horiguchi
- Department of Oral BioscienceTokushima University Graduate School of Biomedical SciencesTokushimaJapan
| | - Yasuhiro Mouri
- Department of Oral BioscienceTokushima University Graduate School of Biomedical SciencesTokushimaJapan
| | - Wenhua Shao
- Department of Oral BioscienceTokushima University Graduate School of Biomedical SciencesTokushimaJapan
| | - Keiko Miyoshi
- Department of Oral BioscienceTokushima University Graduate School of Biomedical SciencesTokushimaJapan
| | - Hiroko Hagita
- Department of Oral BioscienceTokushima University Graduate School of Biomedical SciencesTokushimaJapan
| | - Motoharu Sarubo
- Department of Oral BioscienceTokushima University Graduate School of Biomedical SciencesTokushimaJapan
| | - Natsumi Fujiwara
- Department of Oral Healthcare ManagementTokushima University Graduate School of Biomedical SciencesTokushimaJapan
| | - Guangying Qi
- Guangxi Key Laboratory of Tumor Immunology and Microenvironmental RegulationGuilin Medical UniversityGuilinChina
| | - Naozumi Ishimaru
- Department of Oral Molecular PathologyTokushima University Graduate School of Biomedical SciencesTokushimaJapan
| | - Yasusei Kudo
- Department of Oral BioscienceTokushima University Graduate School of Biomedical SciencesTokushimaJapan
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Kelesoglu N, Kori M, Yilmaz BK, Duru OA, Arga KY. Differential co-expression network analysis elucidated genes associated with sensitivity to farnesyltransferase inhibitor and prognosis of acute myeloid leukemia. Cancer Med 2023; 12:22420-22436. [PMID: 38069522 PMCID: PMC10757125 DOI: 10.1002/cam4.6804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 11/13/2023] [Accepted: 11/27/2023] [Indexed: 12/31/2023] Open
Abstract
Acute myeloid leukemia (AML) is a heterogeneous disease and the most common form of acute leukemia with a poor prognosis. Due to its complexity, the disease requires the identification of biomarkers for reliable prognosis. To identify potential disease genes that regulate patient prognosis, we used differential co-expression network analysis and transcriptomics data from relapsed, refractory, and previously untreated AML patients based on their response to treatment in the present study. In addition, we combined functional genomics and transcriptomics data to identify novel and therapeutically potential systems biomarkers for patients who do or do not respond to treatment. As a result, we constructed co-expression networks for response and non-response cases and identified a highly interconnected group of genes consisting of SECISBP2L, MAN1A2, PRPF31, VASP, and SNAPC1 in the response network and a group consisting of PHTF2, SLC11A2, PDLIM5, OTUB1, and KLRD1 in the non-response network, both of which showed high prognostic performance with hazard ratios of 4.12 and 3.66, respectively. Remarkably, ETS1, GATA2, AR, YBX1, and FOXP3 were found to be important transcription factors in both networks. The prognostic indicators reported here could be considered as a resource for identifying tumorigenesis and chemoresistance to farnesyltransferase inhibitor. They could help identify important research directions for the development of new prognostic and therapeutic techniques for AML.
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Affiliation(s)
| | - Medi Kori
- Department of BioengineeringMarmara UniversityIstanbulTürkiye
| | - Betul Karademir Yilmaz
- Genetic and Metabolic Diseases Research and Investigation CenterMarmara UniversityIstanbulTürkiye
- Department of Biochemistry, Faculty of MedicineMarmara UniversityIstanbulTürkiye
| | - Ozlem Ates Duru
- Department of Nutrition and Dietetics, School of Health SciencesNişantaşı UniversityIstanbulTürkiye
- Department of Chemical Engineering, Faculty of EngineeringBolu Abant İzzet Baysal UniversityBoluTürkiye
| | - Kazim Yalcin Arga
- Department of BioengineeringMarmara UniversityIstanbulTürkiye
- Genetic and Metabolic Diseases Research and Investigation CenterMarmara UniversityIstanbulTürkiye
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Sheryazdanova A, Amoedo ND, Dufour S, Impens F, Rossignol R, Sablina A. The deubiquitinase OTUB1 governs lung cancer cell fitness by modulating proteostasis of OXPHOS proteins. Biochim Biophys Acta Mol Basis Dis 2023:166767. [PMID: 37245529 DOI: 10.1016/j.bbadis.2023.166767] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 05/04/2023] [Accepted: 05/23/2023] [Indexed: 05/30/2023]
Abstract
Aerobic glycolysis is a hallmark of cancer development, but this dogma has been challenged by reports showing a key role of oxidative phosphorylation (OXPHOS) in cancer cell survival. It has been proposed that increased levels of intramitochondrial proteins in cancer cells are associated with high OXPHOS activity and increased sensitivity to OXPHOS inhibitors. However, the molecular mechanisms leading to the high expression of OXPHOS proteins in cancer cells remain unknown. Multiple proteomics studies have detected the ubiquitination of intramitochondrial proteins, suggesting the contribution of the ubiquitin system to the proteostatic regulation of OXPHOS proteins. Here, we identified the ubiquitin hydrolase OTUB1 as a regulator of the mitochondrial metabolic machinery essential for lung cancer cell survival. Mitochondria-localized OTUB1 modulates respiration by inhibiting K48-linked ubiquitination and turnover of OXPHOS proteins. An increase in OTUB1 expression is commonly observed in one-third of non-small-cell lung carcinomas and is associated with high OXPHOS signatures. Moreover, OTUB1 expression highly correlates with the sensitivity of lung cancer cells to mitochondrial inhibitors.
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Affiliation(s)
- Aidana Sheryazdanova
- VIB-KU Leuven Center for Cancer Biology, VIB, Leuven, Belgium; Department of Oncology, KULeuven, Leuven, Belgium
| | - Nivea Dias Amoedo
- INSERM U1211 Rare Diseases, Genetics and Metabolism, University of Bordeaux, Bordeaux, France
| | - Sara Dufour
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium; VIB Center for Medical Biotechnology, Ghent, Belgium; VIB Proteomics Core, Ghent, Belgium
| | - Francis Impens
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium; VIB Center for Medical Biotechnology, Ghent, Belgium; VIB Proteomics Core, Ghent, Belgium
| | - Rodrigue Rossignol
- INSERM U1211 Rare Diseases, Genetics and Metabolism, University of Bordeaux, Bordeaux, France
| | - Anna Sablina
- VIB-KU Leuven Center for Cancer Biology, VIB, Leuven, Belgium; Department of Oncology, KULeuven, Leuven, Belgium.
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7
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Min Y, Park HB, Baek KH, Hwang S. Cellular Functions of Deubiquitinating Enzymes in Ovarian Adenocarcinoma. Genes (Basel) 2023; 14:genes14040886. [PMID: 37107644 PMCID: PMC10137459 DOI: 10.3390/genes14040886] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 04/02/2023] [Accepted: 04/07/2023] [Indexed: 04/29/2023] Open
Abstract
In ovarian cancer patients, the 5-year survival rate is 90% for stages I and II, but only 30% for stages III and IV. Unfortunately, as 75% of the patients are diagnosed at stages III and IV, many experience a recurrence. To ameliorate this, it is necessary to develop new biomarkers for early diagnosis and treatment. The ubiquitin-proteasome system is a post-translational modification that plays an important role in regulating protein stability through ubiquitination. In particular, deubiquitinating enzymes (DUBs) regulate protein stability through deubiquitinating substrate proteins. In this review, DUBs and substrates regulated by these enzymes are summarized based on their functions in ovarian cancer cells. This would be useful for the discovery of biomarkers for ovarian cancer and developing new therapeutic candidates.
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Affiliation(s)
- Yosuk Min
- Department of Biomedical Science, CHA University, Seongnam 13488, Gyeonggi-do, Republic of Korea
| | - Hong-Beom Park
- Department of Biomedical Science, CHA University, Seongnam 13488, Gyeonggi-do, Republic of Korea
| | - Kwang-Hyun Baek
- Department of Biomedical Science, CHA University, Seongnam 13488, Gyeonggi-do, Republic of Korea
| | - Sohyun Hwang
- Department of Pathology, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam 13496, Gyeonggi-do, Republic of Korea
- CHA Future Medicine Research Institute, CHA Bundang Medical Center, Seongnam 13496, Gyeonggi-do, Republic of Korea
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8
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Basu B, Ghosh MK. Ubiquitination and deubiquitination in the regulation of epithelial-mesenchymal transition in cancer: Shifting gears at the molecular level. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2022; 1869:119261. [PMID: 35307468 DOI: 10.1016/j.bbamcr.2022.119261] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 03/03/2022] [Accepted: 03/14/2022] [Indexed: 06/14/2023]
Abstract
The process of conversion of non-motile epithelial cells to their motile mesenchymal counterparts is known as epithelial-mesenchymal transition (EMT), which is a fundamental event during embryonic development, tissue repair, and for the maintenance of stemness. However, this crucial process is hijacked in cancer and becomes the means by which cancer cells acquire further malignant properties such as increased invasiveness, acquisition of stem cell-like properties, increased chemoresistance, and immune evasion ability. The switch from epithelial to mesenchymal phenotype is mediated by a wide variety of effector molecules such as transcription factors, epigenetic modifiers, post-transcriptional and post-translational modifiers. Ubiquitination and de-ubiquitination are two post-translational processes that are fundamental to the ubiquitin-proteasome system (UPS) of the cell, and the shift in equilibrium between these two processes during cancer dictates the suppression or activation of different intracellular processes, including EMT. Here, we discuss the complex and dynamic relationship between components of the UPS and EMT in cancer.
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Affiliation(s)
- Bhaskar Basu
- Cancer Biology and Inflammatory Disorder Division, Council of Scientific and Industrial Research-Indian Institute of Chemical Biology (CSIR-IICB), TRUE Campus, CN-6, Sector-V, Salt Lake, Kolkata- 700091 & 4, Raja S.C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Mrinal K Ghosh
- Cancer Biology and Inflammatory Disorder Division, Council of Scientific and Industrial Research-Indian Institute of Chemical Biology (CSIR-IICB), TRUE Campus, CN-6, Sector-V, Salt Lake, Kolkata- 700091 & 4, Raja S.C. Mullick Road, Jadavpur, Kolkata 700032, India.
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9
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Liao Y, Yang M, Wang K, Wang Y, Zhong B, Jiang N. Deubiquitinating enzyme OTUB1 in immunity and cancer: Good player or bad actor? Cancer Lett 2022; 526:248-258. [PMID: 34875341 DOI: 10.1016/j.canlet.2021.12.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 12/01/2021] [Accepted: 12/02/2021] [Indexed: 12/21/2022]
Abstract
OTU domain-containing ubiquitin aldehyde-binding proteins 1 (OTUB1) is the most important element of the deubiquitinase OTU superfamily, which has been identified as an essential regulator of diverse physiological processes, such as DNA damage repair and cytokines secretion. Recently, we found that the pro-carcinogenesis role of OTUB1 and the relationship between OTUB1 and immune response have gradually become the research hot-spot. OTUB1 regulates NK/CD8 T cell activation, autoimmune diseases, PD-L1 mediated immune evasion, viral or bacterial infection related immune response and the occurrence and progression of various cancers via deubiquitinating and stabilizing related proteins. This review provides a comprehensive description about the role and regulatory axis of OTUB1. We can explore the balance between immune response and defense via regulating the level of OTUB1, and targeting OTUB1 might restrain the progression of cancers. This review highlights the experimental evidence that OTUB1 is a feasible and potential therapeutic target against various cancers progression and immune diseases or disorder.
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Affiliation(s)
- Yihao Liao
- Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, 300211, China
| | - Mengyue Yang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, 150000, China
| | - Keke Wang
- Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, 300211, China
| | - Youzhi Wang
- Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, 300211, China
| | - Boqiang Zhong
- Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, 300211, China
| | - Ning Jiang
- Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, 300211, China.
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10
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Lee BS, Kang SU, Huang M, Kim YS, Lee YS, Park JY, Kim CH. OTUB1 knockdown promotes apoptosis in melanoma cells by upregulating TRAIL expression. BMB Rep 2021. [PMID: 34488924 PMCID: PMC8728537 DOI: 10.5483/bmbrep.2021.54.12.033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Bok-Soon Lee
- Department of Otolaryngology, School of Medicine, Ajou University, Suwon 16499, Korea
| | - Sung Un Kang
- Department of Otolaryngology, School of Medicine, Ajou University, Suwon 16499, Korea
| | - Mei Huang
- Department of Otolaryngology, School of Medicine, Ajou University, Suwon 16499, Korea
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon 16499, Korea
| | - Yeon Soo Kim
- Department of Otorhinolaryngology, College of Medicine, Konyang University Hospital, Konyang University Myunggok Medical Research Institute, Daejeon 35365, Korea
| | - Young-Sun Lee
- School of Biosystem and Biomedical Science, College of Health Science, Korea University, Seoul 02841, 5Department of Molecular Science and Technology, Ajou University, Suwon 16499, Korea
| | - Jae-Yong Park
- School of Biosystem and Biomedical Science, College of Health Science, Korea University, Seoul 02841, 5Department of Molecular Science and Technology, Ajou University, Suwon 16499, Korea
| | - Chul-Ho Kim
- Department of Otolaryngology, School of Medicine, Ajou University, Suwon 16499, Korea
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11
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Kim S, Park K, Oh JM, Kim H. RNF126 is a positive regulator of TRAF3 ubiquitination. Biosci Biotechnol Biochem 2021; 85:2420-2428. [PMID: 34643674 DOI: 10.1093/bbb/zbab177] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 10/06/2021] [Indexed: 11/14/2022]
Abstract
Ubiquitination and deubiquitination of signaling molecules are critical regulatory mechanisms in various biological contexts such as inflammatory signaling and the DNA damage response. Thus, finely tuned regulation of protein ubiquitination is essential for maintaining cellular homeostasis. Here, we showed that the RING finger protein RNF126 interacts with TRAF3 and promotes its K63-linked polyubiquitination, which is a crucial step in the TRAF3-dependent antiviral response. We found that RNF126 also interacts with OTUB1, a deubiquitinating enzyme that negatively regulates K63-linked ubiquitination of TRAF3. RNF126 promotes ubiquitination of OTUB1, leading to reduced deubiquitinating activity toward TRAF3. Moreover, RNF126 promotes ubiquitination of OTUB1 on cysteine 91, which is reportedly required for its catalytic activity. Taken together, our results suggest that RNF126 positively regulates the antiviral response by directly promoting K63-linked polyubiquitination of TRAF3 and by reducing OTUB1 activity.
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Affiliation(s)
- Soomi Kim
- Department of Life Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea
| | - Kibeom Park
- Department of Life Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea
| | - Jung-Min Oh
- Department of Oral Biochemistry, Dental and Life Science Institute, School of Dentistry, Pusan National University, Yangsan, Republic of Korea
| | - Hongtae Kim
- Department of Life Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea
- Center for Genomic Integrity Institute for Basic Science (IBS), UNIST, Ulsan, Republic of Korea
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12
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Iskandar A, Zulkifli NW, Ahmad MK, Theva Das K, Zulkifle N. OTUB1 expression and interaction network analyses in MCF-7 breast cancer cells. GENE REPORTS 2021. [DOI: 10.1016/j.genrep.2021.101273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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13
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Liu C, Barger CJ, Karpf AR. FOXM1: A Multifunctional Oncoprotein and Emerging Therapeutic Target in Ovarian Cancer. Cancers (Basel) 2021; 13:3065. [PMID: 34205406 PMCID: PMC8235333 DOI: 10.3390/cancers13123065] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/11/2021] [Accepted: 06/16/2021] [Indexed: 02/08/2023] Open
Abstract
Forkhead box M1 (FOXM1) is a member of the conserved forkhead box (FOX) transcription factor family. Over the last two decades, FOXM1 has emerged as a multifunctional oncoprotein and a robust biomarker of poor prognosis in many human malignancies. In this review article, we address the current knowledge regarding the mechanisms of regulation and oncogenic functions of FOXM1, particularly in the context of ovarian cancer. FOXM1 and its associated oncogenic transcriptional signature are enriched in >85% of ovarian cancer cases and FOXM1 expression and activity can be enhanced by a plethora of genomic, transcriptional, post-transcriptional, and post-translational mechanisms. As a master transcriptional regulator, FOXM1 promotes critical oncogenic phenotypes in ovarian cancer, including: (1) cell proliferation, (2) invasion and metastasis, (3) chemotherapy resistance, (4) cancer stem cell (CSC) properties, (5) genomic instability, and (6) altered cellular metabolism. We additionally discuss the evidence for FOXM1 as a cancer biomarker, describe the rationale for FOXM1 as a cancer therapeutic target, and provide an overview of therapeutic strategies used to target FOXM1 for cancer treatment.
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Affiliation(s)
| | | | - Adam R. Karpf
- Eppley Institute and Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68918-6805, USA; (C.L.); (C.J.B.)
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Liu S, Wu M, Wang F. Research Progress in Prognostic Factors and Biomarkers of Ovarian Cancer. J Cancer 2021; 12:3976-3996. [PMID: 34093804 PMCID: PMC8176232 DOI: 10.7150/jca.47695] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Accepted: 04/22/2021] [Indexed: 12/14/2022] Open
Abstract
Ovarian cancer is a serious threat to women's health; its early diagnosis rate is low and prone to metastasis and recurrence. The current conventional treatment for ovarian cancer is a combination of platinum and paclitaxel chemotherapy based on surgery. The recurrence and progression of ovarian cancer with poor prognosis is a major challenge in treatment. With rapid advances in technology, understanding of the molecular pathways involved in ovarian cancer recurrence and progression has increased, biomarker-guided treatment options can greatly improve the prognosis of patients. This review systematically discusses and summarizes existing and new information on prognostic factors and biomarkers of ovarian cancer, which is expected to improve the clinical management of patients and lead to effective personalized treatment.
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Affiliation(s)
- Shuna Liu
- Department of Laboratory Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China, 210029
- National Key Clinical Department of Laboratory Medicine, Nanjing, China, 210029
| | - Ming Wu
- Department of Laboratory Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China, 210029
- National Key Clinical Department of Laboratory Medicine, Nanjing, China, 210029
| | - Fang Wang
- Department of Laboratory Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China, 210029
- National Key Clinical Department of Laboratory Medicine, Nanjing, China, 210029
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15
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Zhu Q, Fu Y, Li L, Liu CH, Zhang L. The functions and regulation of Otubains in protein homeostasis and diseases. Ageing Res Rev 2021; 67:101303. [PMID: 33609777 DOI: 10.1016/j.arr.2021.101303] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 02/08/2021] [Accepted: 02/15/2021] [Indexed: 12/18/2022]
Abstract
OTU domain-containing ubiquitin aldehyde-binding proteins Otubain1 (OTUB1) and Otubain2 (OTUB2) were initially identified as OTU deubiquitinases (DUBs). Recently, Otubains have emerged as essential regulators of diverse physiological processes, such as immune signaling and DNA damage response. Dysregulation of those processes is likely to increase the risk in multiple aspects of aging-related diseases, including cancers, neurodegenerative disorders, chronic kidney diseases, bone dysplasia and pulmonary fibrosis. Consistently, Otubains are aberrantly expressed in cancers and have been identified to be both tumor suppressors and tumor promoters in different types of cancers. Therefore, the regulatory mechanism of the activity and expression of Otubains is very important for better understanding of Otubains-associated biological networks and human diseases. This review provides a comprehensive description of functions and regulatory axis of Otubains, highlighting experimental evidences indicating Otubains as potential therapeutic targets against aging-related disorders.
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Affiliation(s)
- Qiong Zhu
- State Key Laboratory of Proteomics, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing 100850, China
| | - Yesheng Fu
- State Key Laboratory of Proteomics, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing 100850, China
| | - Lei Li
- State Key Laboratory of Proteomics, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing 100850, China
| | - Cui Hua Liu
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology (Chinese Academy of Sciences), Savaid Medical School, University of Chinese Academy of Sciences, Beijing 100101, China.
| | - Lingqiang Zhang
- State Key Laboratory of Proteomics, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing 100850, China.
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16
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Kalathil D, John S, Nair AS. FOXM1 and Cancer: Faulty Cellular Signaling Derails Homeostasis. Front Oncol 2021; 10:626836. [PMID: 33680951 PMCID: PMC7927600 DOI: 10.3389/fonc.2020.626836] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 12/30/2020] [Indexed: 12/13/2022] Open
Abstract
Forkhead box transcription factor, FOXM1 is implicated in several cellular processes such as proliferation, cell cycle progression, cell differentiation, DNA damage repair, tissue homeostasis, angiogenesis, apoptosis, and redox signaling. In addition to being a boon for the normal functioning of a cell, FOXM1 turns out to be a bane by manifesting in several disease scenarios including cancer. It has been given an oncogenic status based on several evidences indicating its role in tumor development and progression. FOXM1 is highly expressed in several cancers and has also been implicated in poor prognosis. A comprehensive understanding of various aspects of this molecule has revealed its role in angiogenesis, invasion, migration, self- renewal and drug resistance. In this review, we attempt to understand various mechanisms underlying FOXM1 gene and protein regulation in cancer including the different signaling pathways, post-transcriptional and post-translational modifications. Identifying crucial molecules associated with these processes can aid in the development of potential pharmacological approaches to curb FOXM1 mediated tumorigenesis.
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Affiliation(s)
- Dhanya Kalathil
- Cancer Research Program-4, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, India
| | - Samu John
- Cancer Research Program-4, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, India.,Research Centre, University of Kerala, Thiruvananthapuram, India
| | - Asha S Nair
- Cancer Research Program-4, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, India.,Research Centre, University of Kerala, Thiruvananthapuram, India
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Liao Y, Wu N, Wang K, Wang M, Wang Y, Gao J, Zhong B, Ma F, Wu Y, Jiang N. OTUB1 Promotes Progression and Proliferation of Prostate Cancer via Deubiquitinating and Stabling Cyclin E1. Front Cell Dev Biol 2021; 8:617758. [PMID: 33537306 PMCID: PMC7848094 DOI: 10.3389/fcell.2020.617758] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 12/15/2020] [Indexed: 11/13/2022] Open
Abstract
Background: Prostate cancer (PCa) is currently the most common cancer among males worldwide. It has been reported that OTUB1 plays a critical role in a variety of tumors and is strongly related to tumor proliferation, migration, and clinical prognosis. The aim of this research is to investigate the regulatory effect of OTUB1 on PCa proliferation and the underlying mechanism. Methods: Using the TCGA database, we identified that OTUB1 was up-regulated in PCa, and observed severe functional changes in PC3 and C4-2 cells through overexpression or knock down OTUB1. Heterotopic tumors were implanted subcutaneously in nude mice and IHC staining was performed on tumor tissues. The relationship between OTUB1 and cyclin E1 was identified via Western blotting and immunoprecipitations assays. Results: We found that the expression of OTUB1 in PCa was significantly higher than that in Benign Prostatic Hyperplasia (BPH). Overexpression OTUB1 obviously promoted the proliferation and migration of PC3 and C4-2 cells via mediating the deubiquitinated Cyclin E1, while OTUB1 knockout has the opposite effect. The nude mice experiment further explained the above conclusions. We finally determined that OTUB1 promotes the proliferation and progression of PCa via deubiquitinating and stabling Cyclin E1. Conclusions: Our findings reveal the critical role of OTUB1 in PCa, and OTUB1 promotes the proliferation and progression of PCa via deubiquitinating and stabilizing Cyclin E1. Blocking OTUB1/Cyclin E1 axis or applying RO-3306 could significantly repress the occurrence and development of PCa. OTUB1/Cyclin E1 axis might provide a new and potential therapeutic target for PCa.
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Affiliation(s)
- Yihao Liao
- Tianjin Institute of Urology. The Second Hospital of Tianjin Medical University, Tianjin Medical University, Tianjin, China
| | - Ning Wu
- Key Laboratory of Breast Cancer Prevention and Therapy, State Ministry of Education, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Hospital and Institute, Tianjin, China
- Key Laboratory of Cancer Prevention and Therapy, Tianjin Clinical Research Center for Cancer, Tianjin Medical University Cancer Hospital and Institute, Tianjin, China
| | - Keke Wang
- Tianjin Institute of Urology. The Second Hospital of Tianjin Medical University, Tianjin Medical University, Tianjin, China
| | - Miaomiao Wang
- Tianjin Institute of Urology. The Second Hospital of Tianjin Medical University, Tianjin Medical University, Tianjin, China
| | - Youzhi Wang
- Tianjin Institute of Urology. The Second Hospital of Tianjin Medical University, Tianjin Medical University, Tianjin, China
| | - Jie Gao
- Tianjin Institute of Urology. The Second Hospital of Tianjin Medical University, Tianjin Medical University, Tianjin, China
| | - Boqiang Zhong
- Tianjin Institute of Urology. The Second Hospital of Tianjin Medical University, Tianjin Medical University, Tianjin, China
| | - Fuling Ma
- Tianjin Institute of Urology. The Second Hospital of Tianjin Medical University, Tianjin Medical University, Tianjin, China
| | - Yudong Wu
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Ning Jiang
- Tianjin Institute of Urology. The Second Hospital of Tianjin Medical University, Tianjin Medical University, Tianjin, China
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18
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Zhang W, Qiu W. OTUB1 Recruits Tumor Infiltrating Lymphocytes and Is a Prognostic Marker in Digestive Cancers. Front Mol Biosci 2020; 7:212. [PMID: 33240928 PMCID: PMC7677501 DOI: 10.3389/fmolb.2020.00212] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 08/03/2020] [Indexed: 12/22/2022] Open
Abstract
Background The deubiquitinating enzyme (DUB) OTUB1 can regulate the process of ubiquitination, but the influence of OTUB1 on immunity, apoptosis, autophagy, and the prognosis of digestive cancers requires further exploration. Methods OTUB1 expression was analyzed with the Oncomine and TIMER database. Kaplan-Meier plotter was used to calculate the association between OTUB1 and clinical prognosis. The regulation of OTUB1 on cancer immunocyte infiltration was determined by the TIMER database. The interaction between OTUB1 and immune genes, gene expression profiling (GEP), key genes of apoptosis and autophagy were analyzed via GEPIA. Protein-protein interaction (PPI), gene expression profiling (GEP), and functional pathway enrichment were also performed with the STRING and Pathway Common databases, respectively. Results High OTUB1 expression was found in CHOL, LIHC, READ, ESCA, and COAD, which was significantly associated with the poorer OS of LIHC (HR = 2.07, 95% CI = 1.30-3.30, P = 0.002), with modifications by sex, stage, grade, and mutant burden. OTUB1 can promote the recruitment of B cells, CD8 + T cells, macrophages in ESCA, B cells, and neutrophils in LIHC. We determined a significant interaction between OTUB1 and USP8, RNF128, LRIG1, UBB, UBC, STAM2, RNF41, EGFR, RPS27A, and HGS by PPI. This functional pathway indicates the regulatory role of OTUB1on immune, apoptosis, and autophagy through its interaction with TP53 and ATG. Conclusions OTUB1 performed as a molecular indicator of poor prognosis in digestive cancers, regulated the infiltration of tumor immunocytes, and exerted a significant influence on apoptosis and autophagy. OTUB1 is a potential antitumor target for digestive tumors.
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Affiliation(s)
- Wenhao Zhang
- Savaid Medical School, University of Chinese Academy of Sciences, Beijing, China
| | - Wenlong Qiu
- Qilu Hospital, Shandong University, Jinan, China
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Zhang Z, Tu K, Liu F, Liang M, Yu K, Wang Y, Luo Y, Yang B, Qin Y, He D, Jiang G, Huang O, Zou Y. FoxM1 promotes the migration of ovarian cancer cell through KRT5 and KRT7. Gene 2020; 757:144947. [PMID: 32659254 DOI: 10.1016/j.gene.2020.144947] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 06/30/2020] [Accepted: 07/06/2020] [Indexed: 12/28/2022]
Abstract
Forkhead box M1(FoxM1) played an important role in the pathogenesis of ovarian cancer, but its downstream molecular network is mysterious. Here, we combined ChIP-seq with RNA-seq analysis and identified 687 FoxM1-binding regions and 182 genes regulated by FoxM1. The above data pointed out that KRT5 and KRT7 were downstream target genes of FoxM1. Next, we used qPCR and Western blot to verify that FoxM1 knockdown inhibited the expression levels of KRT5 and KRT7. We also demonstrated that FoxM1 regulated KRT5 and KRT7 genes expression through binding a consensus AP-2 cis element, and showed that KRT5 and KRT7 deficiency could prevent the migration but not proliferation of SK-OV-3 cells. Finally, tissue microarray results indicated that KRT5 and KRT7 were highly expressed in ovarian cancer and positively correlated with FoxM1 expression. TCGA database showed that high expression of KRT5 and KRT7 could significantly reduce the survival rate of patients with ovarian cancer. The above results clarify the specific downstream molecular network of FoxM1 to promote the pathogenesis of ovarian cancer, and provide a basis experiment for the judgment of ovarian cancer prognosis and the design of drug targets.
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Affiliation(s)
- Ziyu Zhang
- Key Laboratory of Women's Reproductive Health of Jiangxi, Jiangxi Maternal and Child Health Hospital, Nanchang, Jiangxi 330006, PR China; Central Laboratory, Jiangxi Maternal and Child Health Hospital, Nanchang, Jiangxi 330006, PR China
| | - Kaijia Tu
- Department of Oncology, Jiangxi Maternal and Child Health Hospital, Nanchang, Jiangxi 330006, PR China
| | - Faying Liu
- Key Laboratory of Women's Reproductive Health of Jiangxi, Jiangxi Maternal and Child Health Hospital, Nanchang, Jiangxi 330006, PR China; Central Laboratory, Jiangxi Maternal and Child Health Hospital, Nanchang, Jiangxi 330006, PR China
| | - Meirong Liang
- Department of Oncology, Jiangxi Maternal and Child Health Hospital, Nanchang, Jiangxi 330006, PR China
| | - Kaihui Yu
- The College of Medicine, Nanchang University, Nanchang, Jiangxi 330006, PR China
| | - Yaoqing Wang
- The College of Medicine, Nanchang University, Nanchang, Jiangxi 330006, PR China
| | - Yong Luo
- Key Laboratory of Women's Reproductive Health of Jiangxi, Jiangxi Maternal and Child Health Hospital, Nanchang, Jiangxi 330006, PR China; Central Laboratory, Jiangxi Maternal and Child Health Hospital, Nanchang, Jiangxi 330006, PR China
| | - Bicheng Yang
- Key Laboratory of Women's Reproductive Health of Jiangxi, Jiangxi Maternal and Child Health Hospital, Nanchang, Jiangxi 330006, PR China; Central Laboratory, Jiangxi Maternal and Child Health Hospital, Nanchang, Jiangxi 330006, PR China
| | - Yunna Qin
- Department of Pathology, Jiangxi Maternal and Child Health Hospital, Nanchang, Jiangxi 330006, PR China
| | - Deming He
- Department of Pathology, Jiangxi Maternal and Child Health Hospital, Nanchang, Jiangxi 330006, PR China
| | - Guoyi Jiang
- Department of Obstetrics, Jiangxi Maternal and Child Health Hospital, Nanchang, Jiangxi, 330006, PR China
| | - Ouping Huang
- Key Laboratory of Women's Reproductive Health of Jiangxi, Jiangxi Maternal and Child Health Hospital, Nanchang, Jiangxi 330006, PR China; Central Laboratory, Jiangxi Maternal and Child Health Hospital, Nanchang, Jiangxi 330006, PR China.
| | - Yang Zou
- Key Laboratory of Women's Reproductive Health of Jiangxi, Jiangxi Maternal and Child Health Hospital, Nanchang, Jiangxi 330006, PR China; Central Laboratory, Jiangxi Maternal and Child Health Hospital, Nanchang, Jiangxi 330006, PR China.
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20
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Zhou K, Mai H, Zheng S, Cai W, Yang X, Chen Z, Zhan B. OTUB1-mediated deubiquitination of FOXM1 up-regulates ECT-2 to promote tumor progression in renal cell carcinoma. Cell Biosci 2020; 10:50. [PMID: 32257108 PMCID: PMC7106863 DOI: 10.1186/s13578-020-00408-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 03/13/2020] [Indexed: 12/19/2022] Open
Abstract
Background OTUB1 (ovarian tumor domain protease domain-containing ubiquitin aldehyde-binding proteins)-mediated deubiquitination of FOXM1 (Forkhead box M1) participates in carcinogenesis of various tumors. We aim to investigate the effect and mechanism of OTUB1/FOXM1 on RCC (renal cell carcinoma) progression. Expression levels of OTUB1 in RCC tissues and cell lines were examined by qRT-PCR (quantitative real-time polymerase chain reaction) and immunohistochemistry. Cell proliferation was measured with CCK8 (Cell Counting Kit-8) and colony formation assays. Wound healing and transwell assays were used to determine cell migration and invasion, respectively. The effect of OTUB1 on FOXM1 ubiquitination was examined by Immunoprecipitation. Western blot was used to uncover the underlying mechanism. In vivo subcutaneous xenotransplanted tumor model combined with immunohistochemistry and western blot were used to examine the tumorigenic function of OTUB1. Results OTUB1 was up-regulated in RCC tissues and cell lines, and was associated with poor prognosis of RCC patients. Knockdown of OTUB1 inhibited cell viability and proliferation, as well as migration and invasion of RCC cells. Mechanistically, knockdown of OTUB1 down-regulated FOXM1 expression by promoting its ubiquitination. Down-regulation of FOXM1 inhibited ECT2 (epithelial cell transforming 2)-mediated Rho signaling. Moreover, the inhibition of RCC progression caused by OTUB1 knockdown was reversed by FOXM1 over-expression. In vivo subcutaneous xenotransplanted tumor model also revealed that knockdown of OTUB1 could suppress in vivo RCC growth via down-regulation of FOXM1-mediated ECT2 expression. Conclusions OTUB1-mediated deubiquitination of FOXM1 up-regulates ECT-2 to promote tumor progression in RCC, providing a new potential therapeutic target for RCC treatment.
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Affiliation(s)
- Kai Zhou
- 1Department of Urology, Fujian Medical University Union Hospital, 29 Xinquan Road, Fuzhou, 350001 Fujian China
| | - Haixing Mai
- 2Department of Urology, Chinese PLA General Hospital, Beijing, 100853 China
| | - Song Zheng
- 1Department of Urology, Fujian Medical University Union Hospital, 29 Xinquan Road, Fuzhou, 350001 Fujian China
| | - Weizhong Cai
- 1Department of Urology, Fujian Medical University Union Hospital, 29 Xinquan Road, Fuzhou, 350001 Fujian China
| | - Xu Yang
- 1Department of Urology, Fujian Medical University Union Hospital, 29 Xinquan Road, Fuzhou, 350001 Fujian China
| | - Zhenlin Chen
- 1Department of Urology, Fujian Medical University Union Hospital, 29 Xinquan Road, Fuzhou, 350001 Fujian China
| | - Bin Zhan
- 1Department of Urology, Fujian Medical University Union Hospital, 29 Xinquan Road, Fuzhou, 350001 Fujian China
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Abstract
OTUB1 is a highly expressed cysteine protease that specifically cleaves K48-linked polyubiquitin chains. This unique deubiquitinating enzyme (DUB) can bind to a subset of E2 ubiquitin conjugating enzymes, forming complexes in which the two enzymes can regulate one another's activity. OTUB1 can noncatalytically suppress the ubiquitin conjugating activity of its E2 partners by sequestering the charged E2∼Ub thioester and preventing ubiquitin transfer. The same E2 enzymes, when uncharged, can stimulate the DUB activity of OTUB1 in vitro, although the importance of OTUB1 stimulation in vivo remains unclear. To assess the potential balance between these activities that might occur in cells, we characterized the kinetics and thermodynamics governing the formation and activity of OTUB1:E2 complexes. We show that both stimulation of OTUB1 by E2 enzymes and noncatalytic inhibition of E2 enzymes by OTUB1 occur at physiologically relevant concentrations of both partners. Whereas E2 partners differ in their ability to stimulate OTUB1 activity, we find that this variability is not correlated with the affinity of each E2 for OTUB1. In addition to UBE2N and the UBE2D isoforms, we find that OTUB1 inhibits the polyubiquitination activity of all three UBE2E enzymes, UBE2E1, UBE2E2, and UBE2E3. Interestingly, although OTUB1 also inhibits the auto-monoubiquitination and autopolyubiquitination activity of UBE2E1 and UBE2E2, it is unable to suppress autoubiquitination by UBE2E3. Our quantitative analysis provides a basis for further exploring the biological roles of OTUB1:E2 complexes in cells.
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Affiliation(s)
- Lauren T. Que
- Department of Biophysics and Biophysical Chemistry, Johns Hopkins University School of Medicine, 725 North Wolfe Street, Baltimore, MD 21210-2185 USA
| | - Marie E. Morrow
- Department of Biophysics and Biophysical Chemistry, Johns Hopkins University School of Medicine, 725 North Wolfe Street, Baltimore, MD 21210-2185 USA
| | - Cynthia Wolberger
- Department of Biophysics and Biophysical Chemistry, Johns Hopkins University School of Medicine, 725 North Wolfe Street, Baltimore, MD 21210-2185 USA
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Higurashi M, Maruyama T, Nogami Y, Ishikawa F, Yoshida Y, Mori K, Fujita KI, Shibanuma M. High expression of FOXM1 critical for sustaining cell proliferation in mitochondrial DNA-less liver cancer cells. Exp Cell Res 2020; 389:111889. [PMID: 32032602 DOI: 10.1016/j.yexcr.2020.111889] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 01/06/2020] [Accepted: 02/03/2020] [Indexed: 12/16/2022]
Abstract
The copy number of mitochondrial DNA (mtDNA) is decreased in most cancer types, including hepatocellular carcinoma (HCC), compared to normal counterparts. However, a decrease in mtDNA usually leads to defects in cell proliferation, which contradicts the robustness of cancer cell proliferation. In this study, we found that four out of seven HCC cell lines were of the mtDNA-less type. Interestingly, FOXM1, a member of the FOX transcription factor family, was highly expressed in a subset of them with proliferative potential maintained. B-MYB, a partner of FOXM1, was also expressed in the same cell lines. RNAi-mediated experiments demonstrated that when FOXM1/B-MYB was silenced in the cell lines, cell cycle-related genes were downregulated, while p21Cip1 was induced with senescence-associated β-galactosidase, resulting in G1/S cell cycle arrest. These results suggest that high expression of FOXM1/B-MYB is critical for sustaining cell proliferation in mtDNA-less cells. In addition, we found that high expression of FOXM1 was mediated by the deubiquitinating enzyme, OTUB1, in one cell line. Thus, interference with FOXM1/B-MYB expression, such as through OTUB1 inhibition, may induce a dormant state of senescence-like proliferation arrest in mtDNA-less cancer cells. This finding may be utilized for the development of precision medicine for relevant cancers.
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Affiliation(s)
- Masato Higurashi
- Division of Cancer Cell Biology, Department of Pharmaceutical Sciences, Showa University School of Pharmacy, Tokyo, 142-8555, Japan
| | - Tsuyoshi Maruyama
- Division of Cancer Cell Biology, Department of Pharmaceutical Sciences, Showa University School of Pharmacy, Tokyo, 142-8555, Japan
| | - Yusuke Nogami
- Division of Cancer Cell Biology, Department of Pharmaceutical Sciences, Showa University School of Pharmacy, Tokyo, 142-8555, Japan
| | - Fumihiro Ishikawa
- Division of Cancer Cell Biology, Department of Pharmaceutical Sciences, Showa University School of Pharmacy, Tokyo, 142-8555, Japan
| | - Yukiko Yoshida
- Department of Advanced Science for Biomolecules, Tokyo Metropolitan Institute of Medical Science, Tokyo, 156-8506, Japan
| | - Kazunori Mori
- Division of Cancer Cell Biology, Department of Pharmaceutical Sciences, Showa University School of Pharmacy, Tokyo, 142-8555, Japan
| | - Ken-Ichi Fujita
- Division of Cancer Cell Biology, Department of Pharmaceutical Sciences, Showa University School of Pharmacy, Tokyo, 142-8555, Japan
| | - Motoko Shibanuma
- Division of Cancer Cell Biology, Department of Pharmaceutical Sciences, Showa University School of Pharmacy, Tokyo, 142-8555, Japan.
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Functional analysis of deubiquitylating enzymes in tumorigenesis and development. Biochim Biophys Acta Rev Cancer 2019; 1872:188312. [DOI: 10.1016/j.bbcan.2019.188312] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 08/16/2019] [Accepted: 08/16/2019] [Indexed: 02/06/2023]
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Sun J, Deng Y, Shi J, Yang W. MicroRNA‑542‑3p represses OTUB1 expression to inhibit migration and invasion of esophageal cancer cells. Mol Med Rep 2019; 21:35-42. [PMID: 31939620 PMCID: PMC6896300 DOI: 10.3892/mmr.2019.10836] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 04/24/2019] [Indexed: 12/22/2022] Open
Abstract
Dysregulation of microRNAs (miRNAs) is involved in the pathogenesis of esophageal cancer. miRNA (miR)‑542‑3p is a tumor suppressor in multiple types of cancer. However, whether and how miR‑542‑3p contributes to the progression of esophageal cancer remains unknown, and this is the aim of the present study. In the current study, decreased expression of miR‑542‑3p was detected in tumor tissues compared with normal tissues from patients with esophageal cancer, and miR‑542‑3p expression was negatively correlated with mRNA expression levels of ovarian tumor domain‑containing ubiquitin aldehyde‑binding protein 1 (OTUB1) in tumor tissues from patients with esophageal cancer. In KYSE150 human esophageal squamous cell carcinoma cells, overexpression of miR‑542‑3p significantly decreased OTUB1 at mRNA and protein levels, whereas downregulation of miR‑542‑3p significantly increased OTUB1 expression. Using a dual‑luciferase assay, OTUB1 was validated to be a target gene of miR‑542‑3p in KYSE150 cells. Functionally, miR‑542‑3p significantly inhibited the migration and invasion of KYSE150 cells by repression of OTUB1 expression. These results demonstrated that miR‑542‑3p may promote the metastasis of esophageal cancer cells, and indicated that miR‑542‑3p may be a treatment target for esophageal cancer.
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Affiliation(s)
- Jun Sun
- Oncology Department, Jianhu Hospital Affiliated to Nantong University, Jianhu, Jiangsu 224700, P.R. China
| | - Yong Deng
- Thoracic Surgery Department, Sheyang People's Hospital, Sheyang, Jiangsu 224300, P.R. China
| | - Jin Shi
- Thoracic Surgery Department, Sheyang People's Hospital, Sheyang, Jiangsu 224300, P.R. China
| | - Wengang Yang
- Thoracic Surgery Department, Sheyang People's Hospital, Sheyang, Jiangsu 224300, P.R. China
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Zhou Y, Jia Q, Meng X, Chen D, Zhu B. ERRα Regulates OTUB1 Expression to Promote Colorectal Cancer Cell Migration. J Cancer 2019; 10:5812-5819. [PMID: 31737118 PMCID: PMC6843886 DOI: 10.7150/jca.30720] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Accepted: 08/20/2019] [Indexed: 02/06/2023] Open
Abstract
Ovarian tumor domain-containing ubiquitin aldehyde binding protein 1 (OTUB1) is overexpressed in many cancers and plays an important role in tumor progression and metastasis. However, the molecular mechanisms underlying OTUB1 overexpression are not clear. In this study, we found that estrogen-related receptor alpha (ERRα, also called NR3B1) binds to OTUB1 promoter and regulates its expression in colorectal cancer. Furthermore, ERRα promoted the migration of CRC cells by inducing vimentin expression via OTUB1. Our data show that OTUB1 is a novel target of ERRα and indicate that ERRα-OTUB1 signaling may play a significant role in CRC metastasis.
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Affiliation(s)
- Yi Zhou
- Institute of Cancer, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Qingzhu Jia
- Institute of Cancer, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Xiaoqing Meng
- Department of Hematology, the Third Affiliated Hospital of Chongqing Medical University (Gener Hospital), Chongqing, China
| | - Diangang Chen
- Institute of Cancer, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Bo Zhu
- Institute of Cancer, Xinqiao Hospital, Third Military Medical University, Chongqing, China
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Song Z, Li J, Zhang L, Deng J, Fang Z, Xiang X, Xiong J. UCHL3 promotes pancreatic cancer progression and chemo-resistance through FOXM1 stabilization. Am J Cancer Res 2019; 9:1970-1981. [PMID: 31598398 PMCID: PMC6780670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Accepted: 01/19/2019] [Indexed: 06/10/2023] Open
Abstract
The dysregulation of deubiquitinating enzymes has been reported to be important in the development of many human cancers, including pancreatic cancer. However, the precise role and potential mechanism of action of the deubiquitinating enzyme UCHL3 in pancreatic cancer progression and chemo-resistance, are poorly elucidated. In the current study, the consequences of UCHL3 knockdown in pancreatic cancer cells were evaluated via cell viability and colony formation assays. In vivo experiments were also conducted to confirm the effect of UCHL3 and FOXM1 depletion on tumor growth in nude mouse xenograft models. Cell migration and invasion were assessed by wound-healing and transwell assays, respectively. Co-immunoprecipitation (co-IP) and in vitro deubiquitination assays were performed to investigate the interactions between UCHL3 and FOXM1. Immunohistochemical (IHC) staining was utilized to examine the expression of UCHL3 and FOXM1 in pancreatic cancer tissues. Our results demonstrate that UCHL3 deubiquitinated and stabilized FOXM1, thereby potentiating proliferation, migration, and invasion of pancreatic cancer cells. Furthermore, knockdown of UCHL3 increased FOXM1 ubiquitination, which enhanced FOXM1 turnover and promoted pancreatic cancer cells' sensitivity to gemcitabine. High UCHL3 expression was positively associated with FOXM1 expression level in pancreatic cancer patient samples. Collectively, our study established the UCHL3-FOXM1 axis as a pivotal driver of pancreatic cancer progression and gemcitabine resistance and provided evidence for the potential therapeutic benefit of targeting the UCHL3-FOXM1 axis for pancreatic cancer treatment.
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Affiliation(s)
- Zhiwang Song
- Department of Oncology, The First Affiliated Hospital of Nanchang University Nanchang, Jiangxi, People's Republic of China
| | - Junhe Li
- Department of Oncology, The First Affiliated Hospital of Nanchang University Nanchang, Jiangxi, People's Republic of China
| | - Ling Zhang
- Department of Oncology, The First Affiliated Hospital of Nanchang University Nanchang, Jiangxi, People's Republic of China
| | - Jun Deng
- Department of Oncology, The First Affiliated Hospital of Nanchang University Nanchang, Jiangxi, People's Republic of China
| | - Ziling Fang
- Department of Oncology, The First Affiliated Hospital of Nanchang University Nanchang, Jiangxi, People's Republic of China
| | - Xiaojun Xiang
- Department of Oncology, The First Affiliated Hospital of Nanchang University Nanchang, Jiangxi, People's Republic of China
| | - Jianping Xiong
- Department of Oncology, The First Affiliated Hospital of Nanchang University Nanchang, Jiangxi, People's Republic of China
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27
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Wang X, Mulas F, Yi W, Brunn A, Nishanth G, Just S, Waisman A, Brück W, Deckert M, Schlüter D. OTUB1 inhibits CNS autoimmunity by preventing IFN-γ-induced hyperactivation of astrocytes. EMBO J 2019; 38:embj.2018100947. [PMID: 30944096 DOI: 10.15252/embj.2018100947] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 02/20/2019] [Accepted: 02/28/2019] [Indexed: 01/31/2023] Open
Abstract
Astrocytes are critical regulators of neuroinflammation in multiple sclerosis (MS) and its animal model experimental autoimmune encephalomyelitis (EAE). Growing evidence indicates that ubiquitination of signaling molecules is an important cell-intrinsic mechanism governing astrocyte function during MS and EAE Here, we identified an upregulation of the deubiquitinase OTU domain, ubiquitin aldehyde binding 1 (OTUB1) in astrocytes during MS and EAE Mice with astrocyte-specific OTUB1 ablation developed more severe EAE due to increased leukocyte accumulation, proinflammatory gene transcription, and demyelination in the spinal cord as compared to control mice. OTUB1-deficient astrocytes were hyperactivated in response to IFN-γ, a fingerprint cytokine of encephalitogenic T cells, and produced more proinflammatory cytokines and chemokines than control astrocytes. Mechanistically, OTUB1 inhibited IFN-γ-induced Janus kinase (JAK)/signal transducer and activator of transcription (STAT) signaling by K48 deubiquitination and stabilization of the JAK2 inhibitor suppressor of cytokine signaling 1 (SOCS1). Thus, astrocyte-specific OTUB1 is a critical inhibitor of neuroinflammation in CNS autoimmunity.
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Affiliation(s)
- Xu Wang
- Institute of Medical Microbiology and Hospital Hygiene, Otto-von-Guericke University Magdeburg, Magdeburg, Germany .,Institute of Medical Microbiology and Hospital Epidemiology, Hannover Medical School, Hannover, Germany
| | - Floriana Mulas
- Institute of Medical Microbiology and Hospital Hygiene, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.,Institute of Medical Microbiology and Hospital Epidemiology, Hannover Medical School, Hannover, Germany
| | - Wenjing Yi
- Institute of Medical Microbiology and Hospital Hygiene, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.,Institute of Medical Microbiology and Hospital Epidemiology, Hannover Medical School, Hannover, Germany
| | - Anna Brunn
- Department of Neuropathology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Gopala Nishanth
- Institute of Medical Microbiology and Hospital Hygiene, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.,Institute of Medical Microbiology and Hospital Epidemiology, Hannover Medical School, Hannover, Germany
| | - Sissy Just
- Institute of Medical Microbiology and Hospital Hygiene, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.,Institute of Medical Microbiology and Hospital Epidemiology, Hannover Medical School, Hannover, Germany
| | - Ari Waisman
- Institute for Molecular Medicine, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Wolfgang Brück
- Institute of Neuropathology, University Medical Center Göttingen, Göttingen, Germany
| | - Martina Deckert
- Department of Neuropathology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Dirk Schlüter
- Institute of Medical Microbiology and Hospital Hygiene, Otto-von-Guericke University Magdeburg, Magdeburg, Germany .,Institute of Medical Microbiology and Hospital Epidemiology, Hannover Medical School, Hannover, Germany.,Organ-specific Immune Regulation, Helmholtz-Center for Infection Research, Braunschweig, Germany
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28
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Pei HZ, Huang B, Chang HW, Baek SH. Ovarian tumor domain-containing ubiquitin aldehyde binding protein 1 inhibits inflammation by regulating Nur77 stability. Cell Signal 2019; 59:85-95. [PMID: 30905540 DOI: 10.1016/j.cellsig.2019.03.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 03/20/2019] [Accepted: 03/20/2019] [Indexed: 11/15/2022]
Abstract
Nur77 (NR4A1) plays an important role in various inflammatory responses. Nur77 is rapidly degraded in cells and its protein level is critically controlled. Although few E3 ligases regulating the Nur77 protein have been defined, the deubiquitinase (DUB) responsible for Nur77 stability has not been reported to date. We identified ovarian tumor domain-containing ubiquitin aldehyde binding protein 1 (OTUB1) as a DUB that stabilizes Nur77 by preventing its proteasomal degradation. We found that OTUB1 interacted with Nur77 to deubiquitinate it, thereby stabilizing Nur77 in an Asp88-dependent manner. This suggests that OTUB1 targets Nur77 for deubiquitination via a non-canonical mechanism. Functionally, OTUB1 inhibited TNFα-induced IL-6 production by promoting Nur77 protein stability. OTUB1 modulated the stability of Nur77 as a counterpart of tripartite motif 13 (Trim13). That is, OTUB1 reduced the ubiquitination and degradation of Nur77 potentiated by Trim13. In addition, this DUB also inhibited IL-6 production, which was further amplified by Trim13 in TNFα-induced responses. These findings suggest that OTUB1 is an important regulator of Nur77 stability and plays a role in controlling the inflammatory response.
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Affiliation(s)
- Han Zhong Pei
- Department of Biochemistry and Molecular Biology, College of Medicine, Yeungnam University, Daegu, South Korea
| | - Bin Huang
- School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Hyeun-Wook Chang
- College of Pharmacy, Yeungnam University, Gyeongsan-si, South Korea
| | - Suk-Hwan Baek
- Department of Biochemistry and Molecular Biology, College of Medicine, Yeungnam University, Daegu, South Korea.
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29
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Ohshima Y, Kono N, Yokota Y, Watanabe S, Sasaki I, Ishioka NS, Sakashita T, Arakawa K. Anti-tumor effects and potential therapeutic response biomarkers in α-emitting meta- 211At-astato-benzylguanidine therapy for malignant pheochromocytoma explored by RNA-sequencing. Theranostics 2019; 9:1538-1549. [PMID: 31037122 PMCID: PMC6485192 DOI: 10.7150/thno.30353] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 01/04/2019] [Indexed: 12/13/2022] Open
Abstract
Targeted α-particle therapy is a promising option for patients with malignant pheochromocytoma. Recent observations regarding meta-211At-astato-benzylguanidine (211At-MABG) in a pheochromocytoma mouse model showed a strong anti-tumor effect, though the molecular mechanism remains elusive. Here, we present the first comprehensive RNA-sequencing (RNA-seq) data for pheochromocytoma cells based on in vitro211At-MABG administration experiments. Key genes and pathways in the tumor α-particle radiation response are also examined to obtain potential response biomarkers. Methods: We evaluated genome-wide transcriptional alterations in the rat pheochromocytoma cell line PC12 at 3, 6, and 12 h after 211At-MABG treatment; a control experiment using 60Co γ-ray irradiation was carried out to highlight 211At-MABG-specific gene expression. For comparisons, 10% and 80% iso-survival doses (0.8 and 0.1 kBq/mL for 211At-MABG and 10 and 1 Gy for 60Co γ-rays) were used. Results: Enrichment analysis of differentially expressed genes (DEGs) and analysis of the gene expression profiles of cell cycle checkpoints revealed similar modes of cell death via the p53-p21 signaling pathway after 211At-MABG treatment and γ-ray irradiation. The top list of ranked DEGs demonstrated the expression of key genes on the decrease in the survival following 211At-MABG exposure, and four potential genes (Mien1, Otub1, Vdac1 and Vegfa genes) of 211At-MABG therapy. Western blot analysis indicated increased expression of TSPO in 211At-MABG-treated cells, suggesting its potential as a PET imaging probe. Conclusion: Comprehensive RNA-seq revealed contrasting cellular responses to γ-ray and α-particle therapy, leading to the identification of four potential candidate genes that may serve as molecular imaging and 211At-MABG therapy targets.
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Kim SY, Baek KH. TGF-β signaling pathway mediated by deubiquitinating enzymes. Cell Mol Life Sci 2019; 76:653-665. [PMID: 30349992 PMCID: PMC11105597 DOI: 10.1007/s00018-018-2949-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 09/27/2018] [Accepted: 10/15/2018] [Indexed: 12/18/2022]
Abstract
Ubiquitination is a reversible cellular process mediated by ubiquitin-conjugating enzymes, whereas deubiquitinating enzymes (DUBs) detach the covalently conjugated ubiquitin from target substrates to counter ubiquitination. DUBs play a crucial role in regulating various signal transduction pathways and biological processes including apoptosis, cell proliferation, DNA damage repair, metastasis, differentiation, etc. Since the transforming growth factor-β (TGF-β) signaling pathway participates in various cellular functions such as inflammation, metastasis and embryogenesis, aberrant regulation of TGF-β signaling induces abnormal cellular functions resulting in numerous diseases. This review focuses on DUBs regulating the TGF-β signaling pathway. We discuss the molecular mechanisms of DUBs involved in TGF-β signaling pathway, and biological and therapeutic implications for various diseases.
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Affiliation(s)
- Soo-Yeon Kim
- Department of Biomedical Science, CHA University, 335 Pangyo-Ro, Bundang-Gu, Seongnam, Gyeonggi, 13488, Republic of Korea
| | - Kwang-Hyun Baek
- Department of Biomedical Science, CHA University, 335 Pangyo-Ro, Bundang-Gu, Seongnam, Gyeonggi, 13488, Republic of Korea.
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31
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Saldana M, VanderVorst K, Berg AL, Lee H, Carraway KL. Otubain 1: a non-canonical deubiquitinase with an emerging role in cancer. Endocr Relat Cancer 2019; 26:R1-R14. [PMID: 30400005 PMCID: PMC6226034 DOI: 10.1530/erc-18-0264] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 09/03/2018] [Indexed: 12/12/2022]
Abstract
The ubiquitin system regulates diverse biological processes, many involved in cancer pathogenesis, by altering the ubiquitination state of protein substrates. This is accomplished by ubiquitin ligases and deubiquitinases (DUBs), which respectively add or remove ubiquitin from substrates to alter their stability, activity, localization and interactions. While lack of catalytic activity makes therapeutic targeting of ubiquitin ligases difficult, DUB inhibitors represent an active area of research and the identification of cancer-associated DUBs may lead to the development of novel therapeutics. A growing body of literature demonstrates that the DUB Otubain 1 (OTUB1) regulates many cancer-associated signaling pathways including MAPK, ERa, epithelial-mesenchymal transition (EMT), RHOa, mTORC1, FOXM1 and P53 to promote tumor cell survival, proliferation, invasiveness and therapeutic resistance. In addition, clinical studies have associated elevated OTUB1 expression with high grade, invasiveness and metastasis in several tumor types including lung, breast, ovarian, glioma, colon and gastric. Interestingly, in addition to catalytic DUB activity, OTUB1 displays a catalytic-independent, non-canonical activity where it inhibits the transfer of ubiquitin onto protein substrates by sequestration of E2 ubiquitin-conjugating enzymes. The aim of this review is to describe the canonical and non-canonical activities of OTUB1, summarize roles for OTUB1 in cancer-associated pathways and discuss its potential therapeutic targeting.
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Affiliation(s)
- Matthew Saldana
- Department of Biochemistry and Molecular Medicine, UC Davis School of Medicine, UC Davis Comprehensive Cancer Center, Sacramento, California, USA
| | - Kacey VanderVorst
- Department of Biochemistry and Molecular Medicine, UC Davis School of Medicine, UC Davis Comprehensive Cancer Center, Sacramento, California, USA
| | - Anastasia L Berg
- Department of Biochemistry and Molecular Medicine, UC Davis School of Medicine, UC Davis Comprehensive Cancer Center, Sacramento, California, USA
| | - Hyun Lee
- Department of Biochemistry and Molecular Medicine, UC Davis School of Medicine, UC Davis Comprehensive Cancer Center, Sacramento, California, USA
| | - Kermit L Carraway
- Department of Biochemistry and Molecular Medicine, UC Davis School of Medicine, UC Davis Comprehensive Cancer Center, Sacramento, California, USA
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32
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Liao GB, Li XZ, Zeng S, Liu C, Yang SM, Yang L, Hu CJ, Bai JY. Regulation of the master regulator FOXM1 in cancer. Cell Commun Signal 2018; 16:57. [PMID: 30208972 PMCID: PMC6134757 DOI: 10.1186/s12964-018-0266-6] [Citation(s) in RCA: 225] [Impact Index Per Article: 37.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 08/21/2018] [Indexed: 02/07/2023] Open
Abstract
FOXM1 (forkhead box protein M1) is a critical proliferation-associated transcription factor that is widely spatiotemporally expressed during the cell cycle. It is closely involved with the processes of cell proliferation, self-renewal, and tumorigenesis. In most human cancers, FOXM1 is overexpressed, and this indicates a poor prognosis for cancer patients. FOXM1 maintains cancer hallmarks by regulating the expression of target genes at the transcriptional level. Due to its potential role as molecular target in cancer therapy, FOXM1 was named the Molecule of the Year in 2010. However, the mechanism of FOXM1 dysregulation remains indistinct. A comprehensive understanding of FOXM1 regulation will provide novel insight for cancer and other diseases in which FOXM1 plays a major role. Here, we summarize the transcriptional regulation, post-transcriptional regulation and post-translational modifications of FOXM1, which will provide extremely important implications for novel strategies targeting FOXM1.
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Affiliation(s)
- Guo-Bin Liao
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing, 400037 China
| | - Xin-Zhe Li
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing, 400037 China
| | - Shuo Zeng
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing, 400037 China
| | - Cheng Liu
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing, 400037 China
| | - Shi-Ming Yang
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing, 400037 China
| | - Li Yang
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing, 400037 China
| | - Chang-Jiang Hu
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing, 400037 China
| | - Jian-Ying Bai
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing, 400037 China
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Wang S, Ning Y, Wei P, Cai D, Lu L, Li J, Wang Y. The non-coding RNA OTUB1-isoform2 promotes ovarian tumour progression and predicts poor prognosis. J Cell Mol Med 2018; 22:4794-4806. [PMID: 30044532 PMCID: PMC6156285 DOI: 10.1111/jcmm.13733] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 05/18/2018] [Indexed: 02/07/2023] Open
Abstract
Ovarian cancer is the leading malignancy of the female reproductive system and is associated with inconspicuous early invasion and metastasis. We have previously reported that the oncogene OTUB1 plays a crucial role in ovarian cancer progression, but the role of its isoform, the non‐coding RNA OTUB1‐isoform2, in ovarian cancer is still elusive. Here, we reported that OTUB1‐isoform2 expression in ovarian cancer tissues was significantly higher than that in the paired paratumorous tissues (P < .01). The patients with high expression of OTUB1‐isoform2 had larger tumours than those with low expression (P < .05). The high expression of OTUB1‐isoform2 was correlated with the involvement of bilateral ovaries (P < .05), lymph node metastasis (P < .05), vascular invasion (P < .05), greater omentum involvement (P < .01), fallopian tube involvement (P < .05), advanced FIGO stages (P < .01) and recurrence (P < .01). Moreover, OTUB1‐isoform2 served as an independent negative prognostic predictor for disease‐free survival (DFS) and disease‐specific survival (DSS). Overexpression of OTUB1‐isoform2 in the ovarian cancer cells stimulated cell proliferation, migration and invasion both in vitro and in vivo. In summary, our study suggested that OTUB1‐isoform2 is a novel prognostic biomarker with independent oncogenic functions for ovarian cancer.
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Affiliation(s)
- Shunni Wang
- Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Yan Ning
- Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Ping Wei
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Dongliag Cai
- State Key Laboratory of Genetic Engineering, MOE Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China
| | - Linghui Lu
- Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Jing Li
- Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Yiqin Wang
- Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
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OTUB1 promotes esophageal squamous cell carcinoma metastasis through modulating Snail stability. Oncogene 2018; 37:3356-3368. [PMID: 29559747 DOI: 10.1038/s41388-018-0224-1] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 01/31/2018] [Accepted: 02/23/2018] [Indexed: 01/08/2023]
Abstract
Snail is a key regulator of epithelial-mesenchymal transition (EMT) and plays an important role in tumor progression and metastasis. Snail is rapidly degraded in the cells and its protein level is critically controlled. Although several E3 ligases regulating Snail degradation have been defined, the deubiquitinases (DUBs) responsible for Snail deubiquitination are less studied. We identified ovarian tumor domain-containing ubiquitin aldehyde binding protein 1 (OTUB1) as a DUB that stabilizes Snail through preventing its ubiquitination and proteasomal degradation. Functionally, OTUB1 facilitates metastasis of esophageal squamous cell carcinoma (ESCC) through promoting Snail protein stability. Moreover, OTUB1 is highly expressed in ESCC and higher expression of OTUB1 predicts poor prognosis. These findings suggest that OTUB1 is an essential regulator of Snail and plays a critical role in facilitating esophageal cancer progression.
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35
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Lee J, Lee Y, Park B, Won S, Han JS, Heo NJ. Genome-wide association analysis identifies multiple loci associated with kidney disease-related traits in Korean populations. PLoS One 2018; 13:e0194044. [PMID: 29558500 PMCID: PMC5860731 DOI: 10.1371/journal.pone.0194044] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 02/25/2018] [Indexed: 12/19/2022] Open
Abstract
Chronic kidney disease (CKD) is an important social health problem characterized by a decrease in the kidney glomerular filtration rate (GFR). In this study, we analyzed genome-wide association studies for kidney disease-related traits using data from a Korean adult health screening cohort comprising 7,064 participants. Kidney disease-related traits analyzed include blood urea nitrogen (BUN), serum creatinine, estimated GFR, and uric acid levels. We detected two genetic loci (SLC14A2 and an intergenic region) and 8 single nucleotide polymorphisms (SNPs) associated with BUN, 3 genetic loci (BCAS3, C17orf82, ALDH2) and 6 SNPs associated with serum creatinine, 3 genetic loci (BCAS3, C17orf82/TBX2, LRP2) and 7 SNPs associated with GFR, and 14 genetic loci (3 in ABCG2/PKD2, 2 in SLC2A9, 3 in intergenic regions on chromosome 4; OTUB1, NRXN2/SLC22A12, CDC42BPG, RPS6KA4, SLC22A9, and MAP4K2 on chromosome 11) and 84 SNPs associated with uric acid levels. By comparing significant genetic loci associated with serum creatinine levels and GFR, rs9895661 in BCAS3 and rs757608 in C17orf82 were simultaneously associated with both traits. The SNPs rs11710227 in intergenic regions on chromosome 3 showing significant association with BUN is newly discovered. Genetic variations of multiple gene loci are associated with kidney disease-related traits, and differences in associations between kidney disease-related traits and genetic variation are dependent on the population. The meanings of the mutations identified in this study will need to be reaffirmed in other population groups in the future.
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Affiliation(s)
- Jeonghwan Lee
- Department of Internal Medicine, Hallym University Hangang Sacred Heart Hospital, Seoul, Korea
| | - Young Lee
- Veterans Medical Research Institute, Veterans Health Service Medical Center, Seoul, Korea
| | - Boram Park
- Department of Public Health Science, Seoul National University, Seoul, Korea
| | - Sungho Won
- Department of Public Health Science, Seoul National University, Seoul, Korea
- Interdisciplinary Program of Bioinformatics, Seoul National University, Seoul, Korea
- Institute of Health and Environment, Seoul National University, Seoul, Korea
| | - Jin Suk Han
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Nam Ju Heo
- Division of Nephrology, Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
- * E-mail:
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Tabatabaei-Dakhili SA, Aguayo-Ortiz R, Domínguez L, Velázquez-Martínez CA. Untying the knot of transcription factor druggability: Molecular modeling study of FOXM1 inhibitors. J Mol Graph Model 2018; 80:197-210. [PMID: 29414039 DOI: 10.1016/j.jmgm.2018.01.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 12/15/2017] [Accepted: 01/15/2018] [Indexed: 12/27/2022]
Abstract
The FOXM1 protein is a relevant transcription factor involved in cancer cell proliferation. The direct or indirect inhibition of this protein's transcriptional activity by small molecule drugs correlates well with a potentially significant anti-cancer profile, making this macro molecule a promising drug target. There are a few drug molecules reported to interact with (and inhibit) the FOXM1 DNA binding domain (FOXM1-BD), causing downregulation of protein expression and cancer cell proliferation inhibition. Among these drug molecules are the proteasome inhibitor thiostrepton, the former antidiabetic drug troglitazone, and the new FDI-6 molecule. Despite their structural differences, these drugs exert a similar inhibitory profile, and this observation prompted us to study a possible similar mechanism of action. Using a series of molecular dynamics simulations and docking protocols, we identified essential binding interactions exerted by all three classes of drugs, among which, a π-sulfur interaction (between a His287 and a sulfur-containing heterocycle) was the most important. In this report, we describe the preliminary evidence suggesting the presence of a drug-binding pocket within FOXM1 DNA binding domain, in which inhibitors fit to dissociate the protein-DNA complex. This finding suggests a common mechanism of action and a basic framework to design new FOXM1 inhibitors.
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Affiliation(s)
| | - Rodrigo Aguayo-Ortiz
- Facultad de Química, Departamento de Fisicoquímica, Universidad Nacional Autónoma de México, CDMX 04510, Mexico
| | - Laura Domínguez
- Facultad de Química, Departamento de Fisicoquímica, Universidad Nacional Autónoma de México, CDMX 04510, Mexico
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Zhao L, Wang X, Yu Y, Deng L, Chen L, Peng X, Jiao C, Gao G, Tan X, Pan W, Ge X, Wang P. OTUB1 protein suppresses mTOR complex 1 (mTORC1) activity by deubiquitinating the mTORC1 inhibitor DEPTOR. J Biol Chem 2018; 293:4883-4892. [PMID: 29382726 DOI: 10.1074/jbc.m117.809533] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 01/22/2018] [Indexed: 01/05/2023] Open
Abstract
Mechanistic target of rapamycin (mTOR) complex 1 (mTORC1) integrates various environmental signals to regulate cell growth and metabolism. DEPTOR, also termed DEPDC6, is an endogenous inhibitor of mTORC1 and mTORC2 activities. The abundance of DEPTOR centrally orchestrates the mTOR signaling network. However, the mechanisms by which DEPTOR stability is regulated are still elusive. Here, we report that OTU domain-containing ubiquitin aldehyde-binding protein 1 (OTUB1) specifically deubiquitinates DEPTOR in a deubiquitination assay. We found that OTUB1 directly interacted with DEPTOR via its N-terminal domain, deubiquitinated DEPTOR, and thereby stabilized DEPTOR in a Cys-91-independent but Asp-88-dependent manner, suggesting that OTUB1 targets DEPTOR for deubiquitination via a deubiquitinase activity-independent non-canonical mechanism. The interaction between OTUB1 and DEPTOR was enhanced when the cells were treated with amino acids. Moreover, OTUB1 suppressed amino acid-induced activation of mTORC1 in a DEPTOR-dependent manner and thereby ultimately controlled cellular autophagy, cell proliferation, and size. Our findings reveal a mechanism that stabilizes the mTORC1 inhibitor DEPTOR via OTUB1's deubiquitinase activity. Our insights may inform research into various mTOR activity-related diseases, such as cancer, and may contribute to the identification of new diagnostic markers and therapeutic strategies for cancer treatments.
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Affiliation(s)
- Linlin Zhao
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Xinbo Wang
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Yue Yu
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Lu Deng
- Department of Central Laboratory, Shanghai Tenth People's Hospital of Tongji University, School of Medicine, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Lei Chen
- Department of Central Laboratory, Shanghai Tenth People's Hospital of Tongji University, School of Medicine, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Xiaoping Peng
- Department of Central Laboratory, Shanghai Tenth People's Hospital of Tongji University, School of Medicine, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Chenchen Jiao
- Department of Central Laboratory, Shanghai Tenth People's Hospital of Tongji University, School of Medicine, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Guoli Gao
- School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Xiao Tan
- Department of Central Laboratory, Shanghai Tenth People's Hospital of Tongji University, School of Medicine, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Weijuan Pan
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Xin Ge
- Department of Clinical Laboratory Medicine, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China.
| | - Ping Wang
- Department of Central Laboratory, Shanghai Tenth People's Hospital of Tongji University, School of Medicine, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China.
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FIH Is an Oxygen Sensor in Ovarian Cancer for G9a/GLP-Driven Epigenetic Regulation of Metastasis-Related Genes. Cancer Res 2017; 78:1184-1199. [DOI: 10.1158/0008-5472.can-17-2506] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Revised: 11/01/2017] [Accepted: 12/15/2017] [Indexed: 11/16/2022]
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39
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Suppressor of fused (Sufu) promotes epithelial-mesenchymal transition (EMT) in cervical squamous cell carcinoma. Oncotarget 2017; 8:114226-114238. [PMID: 29371981 PMCID: PMC5768398 DOI: 10.18632/oncotarget.23176] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 11/13/2017] [Indexed: 12/01/2022] Open
Abstract
Suppressor of fused is essential for the maximal activation of Sonic Hedgehog signaling in development and tumorigenesis. However, the role of Sufu in cervical carcinoma remains unknown. Here, we report new findings of Sufu in regulating the epithelial-to-mesenchymal transition through the FoxM1 transcriptional modulation by 14-3-3ζ protein in cervical carcinoma. Sufu is overexpressed in cervical squamous cell carcinoma and its level in clinical tumor tissues is positively correlated with 14-3-3ζ. Functionanlly, siSufu remarkably prevents the cancer cell migration and invasion. We further demonstrate that the transcriptional activity of Sufu is increased by FoxM1, of which stability is promoted by 14-3-3ζ. Knockdown FoxM1 decreases the invasion of SiHa cells and reconstitution of Sufu rescues the invasion of these cells.Finally, overexpression of Sufu is significantly associated with differentiation grade, FIGO stage, Depth of stromal invasion and vascular cancer embolus. Our findings highlight a novel role for Sufu in cervical carcinogenesis.
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40
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Cheng Q, Li X, Acharya CR, Hyslop T, Sosa JA. A novel integrative risk index of papillary thyroid cancer progression combining genomic alterations and clinical factors. Oncotarget 2017; 8:16690-16703. [PMID: 28187428 PMCID: PMC5369994 DOI: 10.18632/oncotarget.15128] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 01/24/2017] [Indexed: 12/14/2022] Open
Abstract
Although the majority of papillary thyroid cancer (PTC) is indolent, a subset of PTC behaves aggressively despite the best available treatment. A major clinical challenge is to reliably distinguish early on between those patients who need aggressive treatment from those who do not. Using a large cohort of PTC samples obtained from The Cancer Genome Atlas (TCGA), we analyzed the association between disease progression and multiple forms of genomic data, such as transcriptome, somatic mutations, and somatic copy number alterations, and found that genes related to FOXM1 signaling pathway were significantly associated with PTC progression. Integrative genomic modeling was performed, controlling for demographic and clinical characteristics, which included patient age, gender, TNM stages, histological subtypes, and history of other malignancy, using a leave-one-out elastic net model and 10-fold cross validation. For each subject, the model from the remaining subjects was used to determine the risk index, defined as a linear combination of the clinical and genomic variables from the elastic net model, and the stability of the risk index distribution was assessed through 2,000 bootstrap resampling. We developed a novel approach to combine genomic alterations and patient-related clinical factors that delineates the subset of patients who have more aggressive disease from those whose tumors are indolent and likely will require less aggressive treatment and surveillance (p = 4.62 × 10-10, log-rank test). Our results suggest that risk index modeling that combines genomic alterations with current staging systems provides an opportunity for more effective anticipation of disease prognosis and therefore enhanced precision management of PTC.
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Affiliation(s)
- Qing Cheng
- Department of Surgery, Duke University Medical Center, Durham, NC 27710 USA.,Duke Cancer Institute, Duke University Medical Center, Durham, NC 27710 USA
| | - Xuechan Li
- Duke Cancer Institute, Duke University Medical Center, Durham, NC 27710 USA
| | | | - Terry Hyslop
- Department of Biostatistics and Bioinformatics, Duke University Medical Center, Durham, NC 27710 USA.,Duke Cancer Institute, Duke University Medical Center, Durham, NC 27710 USA
| | - Julie Ann Sosa
- Department of Surgery, Duke University Medical Center, Durham, NC 27710 USA.,Department of Medicine, Duke University Medical Center, Durham, NC 27710 USA.,Duke Cancer Institute, Duke University Medical Center, Durham, NC 27710 USA
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41
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Ni Q, Chen J, Li X, Xu X, Zhang N, Zhou A, Zhou B, Lu Q, Chen Z. Expression of OTUB1 in hepatocellular carcinoma and its effects on HCC cell migration and invasion. Acta Biochim Biophys Sin (Shanghai) 2017; 49:680-688. [PMID: 28575188 DOI: 10.1093/abbs/gmx056] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Indexed: 12/17/2022] Open
Abstract
OTUB1 (OTU domain-containing ubiquitin aldehyde binding protein 1) is a deubiquitinating enzyme (DUB) that belongs to the ovarian tumor (OTU) domain protease superfamily. Although it has been demonstrated to play important roles in the development of many kinds of cancer, the mechanism of OTUB1 in hepatocellular carcinoma (HCC) is not clear. The aim of this study was to explore the roles of OTUB1 in HCC progression using cell lines and 115 archived HCC samples. In addition, the clinical outcomes were also analyzed with a special focus on OTUB1 expression in HCC samples. In the immunohistochemical study, OTUB1 showed high expression in 60 of the 115 cases (52.2%). The OTUB1 expression level was significantly correlated with many clinicopathological parameters, including TNM stage (P = 0.002), histology stage (P = 0.002), and metastasis/recurrence (P = 0.016). Survival analysis showed that the group with OTUB1 overexpression had significantly shorter overall survival time than the group with OTUB1 downregulation (hazard ratio [HR] = 0.482; confidence interval [CI]: 0.311-0.748; P = 0.001). Multivariate analysis indicated that OTUB1 expression was a significant and independent prognostic parameter (HR = 0.214; CI: 0.126-0.364; P < 0.001) for HCC patients. The ability of HCC cells to undergo proliferation, migration, and invasion was suppressed by disruption of endogenous OTUB1 using short hairpin RNA (shRNA). OTUB1 expression appears to be a new and independent predictor for the prognosis of HCC patients. Overexpression of OTUB1 in HCC could be a novel, effective, and supplementary biomarker for HCC because it plays a vital role in the progression of HCC.
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Affiliation(s)
- Qinggan Ni
- Department of Hepatobiliary Surgery, Affiliated Hospital, Nantong University, Research Institute of Hepatobiliary Surgery of Nantong University, Nantong 226001, China
| | - Jiahui Chen
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Xia Li
- Department of Respiratory Medicine, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Xiaodong Xu
- Department of Hepatobiliary Surgery, Affiliated Hospital, Nantong University, Research Institute of Hepatobiliary Surgery of Nantong University, Nantong 226001, China
| | - Nannan Zhang
- Department of Hepatobiliary Surgery, Affiliated Hospital, Nantong University, Research Institute of Hepatobiliary Surgery of Nantong University, Nantong 226001, China
| | - Ang Zhou
- Department of Hepatobiliary Surgery, Affiliated Hospital, Nantong University, Research Institute of Hepatobiliary Surgery of Nantong University, Nantong 226001, China
| | - Bin Zhou
- Department of Hepatobiliary Surgery, Affiliated Hospital, Nantong University, Research Institute of Hepatobiliary Surgery of Nantong University, Nantong 226001, China
| | - Qian Lu
- Department of Hepatobiliary Surgery, Affiliated Hospital, Nantong University, Research Institute of Hepatobiliary Surgery of Nantong University, Nantong 226001, China
| | - Zhong Chen
- Department of Hepatobiliary Surgery, Affiliated Hospital, Nantong University, Research Institute of Hepatobiliary Surgery of Nantong University, Nantong 226001, China
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42
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Yuan L, Yuan P, Yuan H, Wang Z, Run Z, Chen G, Zhao P, Xu B. miR-542-3p inhibits colorectal cancer cell proliferation, migration and invasion by targeting OTUB1. Am J Cancer Res 2017; 7:159-172. [PMID: 28123857 PMCID: PMC5250690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Accepted: 12/05/2016] [Indexed: 06/06/2023] Open
Abstract
Although miR-542-3p has been found to be aberrantly downregulated in variety of human tumors, little is known about its role in colorectal cancer (CRC). This study was designed to assess the prognostic value of miR-542-3p in CRC by examining the expression profile of miR-542-3p in patients with CRC and investigate the possible molecular mechanism underlying the function of miR-542-3p. Our results showed that low levels of miR-542-3p were significantly associated with advanced tumor stage and lymph node metastasis and miR-542-3p can serve as an independent prognostic marker for CRC. Furthermore, ectopic induced expression of miR-542-3p significantly suppressed cell proliferation, induced apoptosis, inhibited migration and invasion in vitro and in vivo. Mechanistically, we identified OTUB1 as a direct and functional target for miR-542-3p, at least partly responsible for the anti-tumor effect of miR-542-3p in CRC. Our study demonstrates the importance of miR-524-3p/OTUB1 signaling in CRC development and suggests that targeting this signaling may highlight a new therapeutic approach for treatment of CRC.
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Affiliation(s)
- Long Yuan
- Department of Surgery, The Affiliated Cancer Hospital of Zhengzhou UniversityZhengzhou, Henan, P. R. China
| | - Peng Yuan
- Department of Surgery, The Affiliated Cancer Hospital of Zhengzhou UniversityZhengzhou, Henan, P. R. China
| | - Huijuan Yuan
- Department of Endocrinology, Henan Provincial People’s HospitalZhengzhou, Henan, P. R. China
| | - Zhenlei Wang
- Department of Surgery, The Affiliated Cancer Hospital of Zhengzhou UniversityZhengzhou, Henan, P. R. China
| | - Zengci Run
- Department of Surgery, The Affiliated Cancer Hospital of Zhengzhou UniversityZhengzhou, Henan, P. R. China
| | - Guanglong Chen
- Department of Surgery, The Affiliated Cancer Hospital of Zhengzhou UniversityZhengzhou, Henan, P. R. China
| | - Peng Zhao
- Department of Surgery, The Affiliated Cancer Hospital of Zhengzhou UniversityZhengzhou, Henan, P. R. China
| | - Benling Xu
- Department of Cancer Biotherapy, The Affiliated Cancer Hospital of Zhengzhou UniversityZhengzhou, Henan, P. R. China
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43
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Xu MD, Wang Y, Weng W, Wei P, Qi P, Zhang Q, Tan C, Ni SJ, Dong L, Yang Y, Lin W, Xu Q, Huang D, Huang Z, Ma Y, Zhang W, Sheng W, Du X. A Positive Feedback Loop of lncRNA- PVT1 and FOXM1 Facilitates Gastric Cancer Growth and Invasion. Clin Cancer Res 2016; 23:2071-2080. [PMID: 27756785 DOI: 10.1158/1078-0432.ccr-16-0742] [Citation(s) in RCA: 197] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 09/16/2016] [Accepted: 09/20/2016] [Indexed: 02/07/2023]
Abstract
Purpose: The long, noncoding RNA (lncRNA) PVT1 is an important epigenetic regulator with a critical role in human tumors. Here, we aimed to investigate the clinical application and the potential molecular mechanisms of PVT1 in gastric cancer tumorigenesis and progression.Experimental Design: The expression level of PVT1 was determined by RT-qPCR analysis in 190 pairs of gastric cancer tissues and adjacent normal gastric mucosa tissues (ANT). The biologic functions of PVT1 were assessed by in vitro and in vivo functional experiments. RNA protein pull-down assays and LS/MS mass spectrometry analysis were performed to detect and identify the PVT1- interacting protein FOXM1. Protein-RNA immunoprecipitation assays were conducted to examine the interaction of FOXM1 and PVT1 Chromatin immunoprecipitation (ChIP) and luciferase analyses were utilized to identify the binding site of FOXM1 on the PVT1 promoter.Results: The lncRNA PVT1 was significantly upregulated in gastric cancer tissues compared with ANTs. High expression of PVT1 predicted poor prognosis in patients with gastric cancer. PVT1 enhanced gastric cancer cell proliferation and invasion in vitro and in vivoPVT1 directly bound FOXM1 protein and increased FOXM1 posttranslationally. Moreover, PVT1 is also a FOXM1-responsive lncRNA, and FOXM1 directly binds to the PVT1 promoter to activate its transcription. Finally, PVT1 fulfilled its oncogenic functions in a FOXM1-mediated manner.Conclusions: Our study suggests that PVT1 promotes tumor progression by interacting with FOXM1. PVT1 may be a valuable prognostic predictor for gastric cancer, and the positive feedback loop of PVT1-FOXM1 could be a therapeutic target in pharmacologic strategies. Clin Cancer Res; 23(8); 2071-80. ©2016 AACR.
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Affiliation(s)
- Mi-Die Xu
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Pathology, Fudan University, Shanghai, China
| | - Yiqin Wang
- Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Weiwei Weng
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Pathology, Fudan University, Shanghai, China
| | - Ping Wei
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Pathology, Fudan University, Shanghai, China
| | - Peng Qi
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Pathology, Fudan University, Shanghai, China
| | - Qiongyan Zhang
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Pathology, Fudan University, Shanghai, China
| | - Cong Tan
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Pathology, Fudan University, Shanghai, China
| | - Shu-Juan Ni
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Pathology, Fudan University, Shanghai, China
| | - Lei Dong
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Pathology, Fudan University, Shanghai, China
| | - Yusi Yang
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Pathology, Fudan University, Shanghai, China
| | - Wanrun Lin
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Pathology, Fudan University, Shanghai, China
| | - Qinghua Xu
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China.,Hangzhou Canhelp Genomics Company Limited, Hangzhou, Zhejiang, China
| | - Dan Huang
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Pathology, Fudan University, Shanghai, China
| | - Zhaohui Huang
- Wuxi Oncology Institute, the Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Yuqing Ma
- Department of Pathology, First Hospital Affiliated to Xinjiang Medical University, Urumqi, China
| | - Wei Zhang
- Department of Pathology, First Hospital Affiliated to Xinjiang Medical University, Urumqi, China
| | - Weiqi Sheng
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China. .,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Pathology, Fudan University, Shanghai, China
| | - Xiang Du
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China. .,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Pathology, Fudan University, Shanghai, China.,Institutes of Biomedical Sciences, Fudan University, Shanghai, China
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44
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Pinto-Fernandez A, Kessler BM. DUBbing Cancer: Deubiquitylating Enzymes Involved in Epigenetics, DNA Damage and the Cell Cycle As Therapeutic Targets. Front Genet 2016; 7:133. [PMID: 27516771 PMCID: PMC4963401 DOI: 10.3389/fgene.2016.00133] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Accepted: 07/12/2016] [Indexed: 12/21/2022] Open
Abstract
Controlling cell proliferation is one of the hallmarks of cancer. A number of critical checkpoints ascertain progression through the different stages of the cell cycle, which can be aborted when perturbed, for instance by errors in DNA replication and repair. These molecular checkpoints are regulated by a number of proteins that need to be present at the right time and quantity. The ubiquitin system has emerged as a central player controlling the fate and function of such molecules such as cyclins, oncogenes and components of the DNA repair machinery. In particular, proteases that cleave ubiquitin chains, referred to as deubiquitylating enzymes (DUBs), have attracted recent attention due to their accessibility to modulation by small molecules. In this review, we describe recent evidence of the critical role of DUBs in aspects of cell cycle checkpoint control, associated DNA repair mechanisms and regulation of transcription, representing pathways altered in cancer. Therefore, DUBs involved in these processes emerge as potentially critical targets for the treatment of not only hematological, but potentially also solid tumors.
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Affiliation(s)
- Adan Pinto-Fernandez
- Target Discovery Institute, Nuffield Department of Medicine, University of Oxford Oxford, UK
| | - Benedikt M Kessler
- Target Discovery Institute, Nuffield Department of Medicine, University of Oxford Oxford, UK
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