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Pu J, Wang B, Zhang D, Wang K, Yang Z, Zhu P, Song Q. UBE2T mediates SORBS3 ubiquitination to enhance IL-6/STAT3 signaling and promote lung adenocarcinoma progression. J Biochem Mol Toxicol 2024; 38:e23743. [PMID: 38816989 DOI: 10.1002/jbt.23743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 03/08/2024] [Accepted: 05/09/2024] [Indexed: 06/01/2024]
Abstract
UBE2T is an oncogene in varying tumors, including lung adenocarcinoma (LUAD). SORBS3 is an important signaling regulatory protein that plays a crucial role in many cancers. This study aimed to investigate whether UBE2T promoted LUAD development by mediating the ubiquitination of SORBS3 and further explore its mechanism. Bioinformatics analysis was conducted to examine the expression of SORBS3 in LUAD tissues. Cell Counting Kit-8, Transwell, and flow cytometry were employed to analyze the cellular functions of SORBS3. Co-immunoprecipitation and ubiquitination analysis were employed to observe the correlation between UBE2T and SORBS3. In vitro and in vivo experiments verified the role of UBE2T in mediating SORBS3 ubiquitination to enhance interleukin-6/signal transducer and activator of transcription 3 (IL-6/STAT3) signaling and promote LUAD development. We observed significant downregulation of SORBS3 in LUAD tissues and cells. Furthermore, SORBS3 inhibited the proliferation, migration, and invasion of LUAD cells, while facilitating apoptosis in vitro. UBE2T enhanced IL-6/STAT3 signaling by mediating ubiquitination and degradation of SORBS3, thereby promoting LUAD progression. Additionally, this mechanism was further validated in the xenograft animal model in vivo. This study confirmed that UBE2T-mediated SORBS3 ubiquitination enhanced IL-6/STAT3 signaling and promoted LUAD progression, providing a novel therapeutic target for LUAD.
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Affiliation(s)
- Jiangtao Pu
- Department of thoracic surgery, Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Biao Wang
- Department of thoracic surgery, Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Dengguo Zhang
- Department of thoracic surgery, Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Kaiqiang Wang
- Department of thoracic surgery, Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Ze Yang
- Department of thoracic surgery, Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Peiquan Zhu
- Department of thoracic surgery, Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Qi Song
- Department of thoracic surgery, Affiliated Hospital of Southwest Medical University, Luzhou, China
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Cai F, Xu H, Song S, Wang G, Zhang Y, Qian J, Xu L. Knockdown of Ubiquitin-Conjugating Enzyme E2 T Abolishes the Progression of Head and Neck Squamous Cell Carcinoma by Inhibiting NF-Κb Signaling and inducing Ferroptosis. Curr Protein Pept Sci 2024; 25:577-585. [PMID: 38584528 DOI: 10.2174/0113892037287640240322084946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 02/17/2024] [Accepted: 02/23/2024] [Indexed: 04/09/2024]
Abstract
BACKGROUND Ubiquitin-conjugating enzyme 2T (UBE2T) has been reported to be associated with uncontrolled cell growth and tumorigenesis in multiple cancer types. However, the understanding of its regulatory role in the carcinogenesis of Head And Neck Squamous Cell Carcinoma (HNSC) is limited. METHODS UBE2T expression in HNSC patient samples and the correlation between its expression and patients' survival rates were evaluated using The Cancer Genome Atlas (TCGA) database. Cell survival and proliferation were investigated in UM-SCC1 and UM-SCC15 cells infected with control and shUBE2T lentivirus. The xenograft mouse model was established using UM-SCC15 cells to examine HNSC tumorigenesis with or without UBE2T. Western blot, qRT-PCR, and ferroptosis assays were carried out to disclose the interaction between UBE2T and NF-κB signaling and ferroptosis. RESULTS The increased expression of UBE2T was noted in tumor tissues of patients with HNSC, correlating with a significantly reduced overall survival time in this patient cohort. Knockdown of UBE2T inhibited HNSC tumorigenesis and tumor growth. Mechanistically, inhibition of UBE2T suppressed NF-κB signaling and induced ferroptosis in HNSC. CONCLUSION Our study underscores the multifaceted role of UBE2T in HNSC, illuminating its potential as a biomarker and therapeutic target.
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Affiliation(s)
- Feng Cai
- Department of Radiation Oncology, the First Affiliated Hospital of Bengbu Medical College, Zhihuai Road, Bengbu, 233000, Anhui, China
| | - Hongbo Xu
- Department of Radiation Oncology, the First Affiliated Hospital of Bengbu Medical College, Zhihuai Road, Bengbu, 233000, Anhui, China
| | - Shilong Song
- Department of Radiation Oncology, the First Affiliated Hospital of Bengbu Medical College, Zhihuai Road, Bengbu, 233000, Anhui, China
| | - Gengming Wang
- Department of Radiation Oncology, the First Affiliated Hospital of Bengbu Medical College, Zhihuai Road, Bengbu, 233000, Anhui, China
| | - Yajun Zhang
- Department of Radiation Oncology, the First Affiliated Hospital of Bengbu Medical College, Zhihuai Road, Bengbu, 233000, Anhui, China
| | - Jing Qian
- Department of Radiation Oncology, the First Affiliated Hospital of Bengbu Medical College, Zhihuai Road, Bengbu, 233000, Anhui, China
| | - Lu Xu
- Department of Radiation Oncology, the First Affiliated Hospital of Bengbu Medical College, Zhihuai Road, Bengbu, 233000, Anhui, China
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Ujike-Hikichi M, Gon Y, Ooki T, Morisawa T, Mizumura K, Kozu Y, Hiranuma H, Nakagawa Y, Shimizu T, Maruoka S. Anti-UBE2T antibody: A novel biomarker of progressive-fibrosing interstitial lung disease. Respir Investig 2023; 61:579-587. [PMID: 37429071 DOI: 10.1016/j.resinv.2023.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 04/17/2023] [Accepted: 05/22/2023] [Indexed: 07/12/2023]
Abstract
BACKGROUND Anti-fibrotic therapy has demonstrated efficacy against progressive-fibrosing interstitial lung disease (PF-ILD); therefore, identifying disease behavior before progression has become a priority. As autoimmunity is implicated in the pathogenesis of various ILDs, this study explored circulating biomarkers that could predict the chronic progressive behavior of ILDs. METHODS A single-center retrospective cohort study was conducted. Circulating autoantibodies in patients with ILD were screened using microarray analysis to identify candidate biomarkers. An enzyme-linked immunosorbent assay was performed with a larger sample set for the quantification of antibodies. After 2 years of follow-up, ILDs were reclassified as PF or non-PF. The relationship between the participants' autoantibody levels measured at enrolment and final diagnosis of PF-ILD was determined. RESULTS In total, 61 healthy participants and 66 patients with ILDs were enrolled. Anti-ubiquitin-conjugating enzyme E2T (UBE2T) antibody was detected as a candidate biomarker. Anti-UBE2T antibody levels were elevated in patients with idiopathic pulmonary fibrosis (IPF). After following up on the study participants for 2 years, anti-UBE2T levels measured at enrolment significantly correlated with the new PF-ILD diagnosis. Immunohistochemical staining of normal lung tissues revealed sparsely located UBE2T in the bronchiole epithelium and macrophages, whereas IPF lung tissues showed robust expression in the epithelial lining of honeycomb structures. CONCLUSION To our knowledge, this is the first report to describe an anti-UBE2T antibody, a new biomarker that is significantly elevated in patients with ILD who present future disease progression.
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Affiliation(s)
- Mari Ujike-Hikichi
- Division of Respiratory Medicine, Department of Internal Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Yasuhiro Gon
- Division of Respiratory Medicine, Department of Internal Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Takashi Ooki
- Division of Respiratory Medicine, Department of Internal Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Tomoko Morisawa
- Division of Respiratory Medicine, Department of Internal Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Kenji Mizumura
- Division of Respiratory Medicine, Department of Internal Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Yutaka Kozu
- Division of Respiratory Medicine, Department of Internal Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Hisato Hiranuma
- Division of Respiratory Medicine, Department of Internal Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Yoshiko Nakagawa
- Division of Respiratory Medicine, Department of Internal Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Tetsuo Shimizu
- Division of Respiratory Medicine, Department of Internal Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Shuichiro Maruoka
- Division of Respiratory Medicine, Department of Internal Medicine, Nihon University School of Medicine, Tokyo, Japan.
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de Carvalho LGA, Komoto TT, Moreno DA, Goes JVC, de Oliveira RTG, de Lima Melo MM, Roa MEGV, Gonçalves PG, Montefusco-Pereira CV, Pinheiro RF, Ribeiro Junior HL. USP15-USP7 Axis and UBE2T Differential Expression May Predict Pathogenesis and Poor Prognosis in De Novo Myelodysplastic Neoplasm. Int J Mol Sci 2023; 24:10058. [PMID: 37373211 DOI: 10.3390/ijms241210058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 04/17/2023] [Accepted: 04/20/2023] [Indexed: 06/29/2023] Open
Abstract
The aim of this study was to evaluate the expression of USP7, USP15, UBE2O, and UBE2T genes in Myelodysplastic neoplasm (MDS) to identify possible targets of ubiquitination and deubiquitination in MDS pathobiology. To achieve this, eight datasets from the Gene Expression Omnibus (GEO) database were integrated, and the expression relationship of these genes was analyzed in 1092 MDS patients and healthy controls. Our results showed that UBE2O, UBE2T, and USP7 were upregulated in MDS patients compared with healthy individuals, but only in mononucleated cells collected from bone marrow samples (p < 0.001). In contrast, only the USP15 gene showed a downregulated expression compared with healthy individuals (p = 0.03). Additionally, the upregulation of UBE2T expression was identified in MDS patients with chromosomal abnormalities compared with patients with normal karyotypes (p = 0.0321), and the downregulation of UBE2T expression was associated with MDS hypoplastic patients (p = 0.033). Finally, the USP7 and USP15 genes were strongly correlated with MDS (r = 0.82; r2 = 0.67; p < 0.0001). These findings suggest that the differential expression of the USP15-USP7 axis and UBE2T may play an important role in controlling genomic instability and the chromosomal abnormalities that are a striking characteristic of MDS.
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Affiliation(s)
- Luiz Gustavo Almeida de Carvalho
- Center for Research and Drug Development (NPDM), Federal University of Ceara, Fortaleza 60020-181, CE, Brazil
- Post-Graduate Program in Translational Medicine, Federal University of Ceara, Fortaleza 60020-181, CE, Brazil
| | - Tatiana Takahasi Komoto
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos 14784-390, SP, Brazil
| | - Daniel Antunes Moreno
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos 14784-390, SP, Brazil
| | - João Vitor Caetano Goes
- Center for Research and Drug Development (NPDM), Federal University of Ceara, Fortaleza 60020-181, CE, Brazil
- Post-Graduate Program of Pathology, Federal University of Ceara, Fortaleza 60020-181, CE, Brazil
| | - Roberta Taiane Germano de Oliveira
- Center for Research and Drug Development (NPDM), Federal University of Ceara, Fortaleza 60020-181, CE, Brazil
- Post-Graduate Program in Medical Science, Federal University of Ceara, Fortaleza 60020-181, CE, Brazil
| | - Mayara Magna de Lima Melo
- Center for Research and Drug Development (NPDM), Federal University of Ceara, Fortaleza 60020-181, CE, Brazil
- Post-Graduate Program in Medical Science, Federal University of Ceara, Fortaleza 60020-181, CE, Brazil
| | | | - Paola Gyuliane Gonçalves
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos 14784-390, SP, Brazil
- Department of Pathology, School of Medicine, Universidade Estadual Paulista, Botucatu 18618-970, SP, Brazil
| | | | - Ronald Feitosa Pinheiro
- Center for Research and Drug Development (NPDM), Federal University of Ceara, Fortaleza 60020-181, CE, Brazil
- Post-Graduate Program in Translational Medicine, Federal University of Ceara, Fortaleza 60020-181, CE, Brazil
- Post-Graduate Program of Pathology, Federal University of Ceara, Fortaleza 60020-181, CE, Brazil
- Post-Graduate Program in Medical Science, Federal University of Ceara, Fortaleza 60020-181, CE, Brazil
| | - Howard Lopes Ribeiro Junior
- Center for Research and Drug Development (NPDM), Federal University of Ceara, Fortaleza 60020-181, CE, Brazil
- Post-Graduate Program in Translational Medicine, Federal University of Ceara, Fortaleza 60020-181, CE, Brazil
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos 14784-390, SP, Brazil
- Post-Graduate Program in Medical Science, Federal University of Ceara, Fortaleza 60020-181, CE, Brazil
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Ma N, Li Z, Yan J, Liu X, He L, Xie R, Lu X. Diverse roles of UBE2T in cancer (Review). Oncol Rep 2023; 49:69. [PMID: 36825587 PMCID: PMC9996685 DOI: 10.3892/or.2023.8506] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 02/10/2023] [Indexed: 02/25/2023] Open
Abstract
As a leading cause of mortalities worldwide, cancer results from accumulation of both genetic and epigenetic alterations. Disruption of epigenetic regulation in cancer, particularly aberrant ubiquitination, has drawn increasing interest in recent years. The present study aimed to review the roles of ubiquitin‑conjugating enzyme E2 T (UBE2T) and its associated pathways in the pathogenesis of pan‑cancer, and the development of small‑molecule modulators to regulate ubiquitination for treatment strategies. The current study comprehensively investigated the expression landscape and functional significance of UBE2T, as well as its correlation with cancer cell sensitivity to chemotherapy/radiotherapy. Multiple levels of evidence suggested that aberrant UBE2T played important roles in pan‑cancer. Information was collected from 16 clinical trials on ubiquitin enzymes, and it was found that these molecules had an important role in the ubiquitin‑proteasome system. Further studies are necessary to explore their feasibility and effectiveness as diagnostic and prognostic biomarkers, or as up/down‑stream and therapeutic targets for cancer treatment.
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Affiliation(s)
- Nengqian Ma
- Department of Hepatobiliary Surgery, Affiliated Nanhua Hospital, Hengyang Medical College, University of South China, Zhuhui, Hengyang, Hunan 421002, P.R. China
| | - Zhangzhan Li
- Radiotherapy Center, Department of Oncology, Affiliated Nanhua Hospital, Hengyang Medical College, University of South China, Zhuhui, Hengyang, Hunan 421002, P.R. China
| | - Jingting Yan
- Department of Ultrasound Medicine, Hengyang Central Hospital, Zhuhui, Hengyang, Hunan 421002, P.R. China
| | - Xianrong Liu
- Department of Hepatobiliary Surgery, Affiliated Nanhua Hospital, Hengyang Medical College, University of South China, Zhuhui, Hengyang, Hunan 421002, P.R. China
| | - Liyan He
- Department of Pain Rehabilitation, Affiliated Nanhua Hospital, Hengyang Medical College, University of South China, Zhuhui, Hengyang, Hunan 421002, P.R. China
| | - Ruijie Xie
- Department of Hand and Microsurgery, Affiliated Nanhua Hospital, Hengyang Medical College, University of South China, Zhuhui, Hengyang, Hunan 421002, P.R. China
| | - Xianzhou Lu
- Department of Hepatobiliary Surgery, Affiliated Nanhua Hospital, Hengyang Medical College, University of South China, Zhuhui, Hengyang, Hunan 421002, P.R. China
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Lei X, Hu X, Lu Q, Fu W, Sun W, Ma Q, Huang D, Xu Q. Ubiquitin‑conjugating enzymes as potential biomarkers and therapeutic targets for digestive system cancers (Review). Oncol Rep 2023; 49:63. [PMID: 36799184 PMCID: PMC9944987 DOI: 10.3892/or.2023.8500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 01/16/2023] [Indexed: 02/15/2023] Open
Abstract
Digestive system cancers are the leading cause of cancer‑related death worldwide due to their high morbidity and mortality rates. The current treatment methods include surgical treatment, chemotherapy, radiotherapy and endoscopic treatment, and the precisely targeted therapy of digestive system cancers requires to be further studied. The ubiquitin‑proteasome system is the main pathway for protein degradation in cells and the ubiquitin‑conjugating enzymes (E2s) have a decisive role in the specific selection of target proteins for degradation. The E2s have an important physiological role in digestive system cancers, which is related to the clinical tumor stage, differentiation degree and poor prognosis. Furthermore, they are involved in the physiological processes of digestive system tumor cell proliferation, migration, invasion, stemness, drug resistance and autophagy. In the present article, the progress and achievements of the E2s in gastric cancer, hepatocellular carcinoma, pancreatic cancer, colorectal cancer, intrahepatic cholangiocarcinoma, gallbladder cancer and esophageal squamous cell carcinoma were reviewed, which may provide early screening indicators and reliable therapeutic targets for digestive system cancers.
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Affiliation(s)
- Xiangxiang Lei
- Institute of Basic Medical Sciences and Forensic Medicine, Hangzhou Medical College, Hangzhou, Zhejiang 310053, P.R. China
| | - Xiaoge Hu
- The Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
| | - Qiliang Lu
- Qingdao Medical College, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Wen Fu
- Qingdao Medical College, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Wen Sun
- Second Clinical Medical Institute, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, P.R. China
| | - Qiancheng Ma
- Institute of Bioengineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P.R. China
| | - Dongsheng Huang
- The Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China,Correspondence to: Dr Dongsheng Huang or Dr Qiuran Xu, The Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, 158 Shangtang Road, Gongshu, Hangzhou, Zhejiang 310014, P.R. China, E-mail:
| | - Qiuran Xu
- The Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China,Correspondence to: Dr Dongsheng Huang or Dr Qiuran Xu, The Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, 158 Shangtang Road, Gongshu, Hangzhou, Zhejiang 310014, P.R. China, E-mail:
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Cui P, Li H, Wang C, Liu Y, Zhang M, Yin Y, Sun Z, Wang Y, Chen X. UBE2T regulates epithelial–mesenchymal transition through the PI3K-AKT pathway and plays a carcinogenic role in ovarian cancer. J Ovarian Res 2022; 15:103. [PMID: 36088429 PMCID: PMC9464398 DOI: 10.1186/s13048-022-01034-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Accepted: 08/24/2022] [Indexed: 11/16/2022] Open
Abstract
Background Ubiquitin-binding enzyme E2T (UBE2T), a member of the E2 family of the ubiquitin–proteasome pathway, is associated with tumorigenesis of varioustumours; however, its role and mechanism in ovarian cancer remain unclear. Results Our study revealed that UBE2T is highly expressed in ovarian cancer; this high expression was closely related to poor prognosis. Immunohistochemistry was used to validate the high expression of UBE2T in ovarian cancer. This is the first study to demonstrate that UBE2T expression is higher in ovarian cancer with BRCA mutation. Moreover, we demonstrated that UBE2T gene silencing significantly inhibited ovarian cancer cell proliferation and invasion. The epithelial–mesenchymal transition (EMT) of ovarian cancer cells and phosphatidylinositol 3 kinase/protein kinase B (PI3K-AKT) pathway were significantly inhibited. Adding the mechanistic target of rapamycin activator MHY1485 activated the PI3K-AKT pathway and significantly restored the proliferative and invasive ability of ovarian cancer cells. Furthermore, a tumorigenesis experiment in nude mice revealed that tumour growth on mice body surface and tumour tissue EMT were significantly inhibited after UBE2T gene silencing. Conclusions This study demonstrated that UBE2T regulates EMT via the PI3K-AKT pathway and plays a carcinogenic role in ovarian cancer. Moreover, UBE2T may interact with BRCA to affect ovarian cancer occurrence and development. Hence, UBE2T may be a valuable novel biomarker for the early diagnosis and prognosis and treatment of ovarian cancer. Further, UBE2T inhibition may be effective for treating ovarian cancer. Supplementary Information The online version contains supplementary material available at 10.1186/s13048-022-01034-9.
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Li L, Liu J, Huang W. E2F5 promotes proliferation and invasion of gastric cancer through directly upregulating UBE2T transcription. Dig Liver Dis 2022; 54:937-945. [PMID: 34583905 DOI: 10.1016/j.dld.2021.09.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 09/03/2021] [Accepted: 09/07/2021] [Indexed: 12/12/2022]
Abstract
The underlying mechanisms of E2F5 upregulation and its pro-tumor functions have not been elucidated in gastric cancer (GC). Here, the expression, prognostic value, mutation status, and promoter methylation of E2F5 were evaluated. The effects of E2F5 depletion on cell proliferation and invasion in GC, were also assessed through in vitro experiments. Additionally, gene set enrichment analysis (GSEA) was applied to analyze the potential downstream regulator of E2F5. The study also assessed the correlation and transcription regulation between E2F5 and UBE2T. Finally, the roles of UBE2T in E2F5-related pro-tumor functions were examined. The findings revealed that E2F5 was upregulated and showed remarkable association with pathological variables and prognosis. Hypomethylation of the E2F5 promoter predicted poor prognosis and partially caused E2F5 upregulation in GC. E2F5 knockdown significantly inhibited the proliferation and invasion of GC cells. E2F5 had a significant positive correlation with UBE2T in GC. Mechanistically, E2F5 promoted UBE2T transcription and UBE2T overexpression reversed the effects of E2F5 depletion on the proliferation and invasion of cells in GC. Taken together, this study originally confirmed the upregulation of E2F5 in GC, revealed that E2F5 can directly upregulate UBE2T transcription, and subsequently promote the malignant progression, which highlights that the E2F5/UBE2T axis can potentially be used in the diagnosis and treatment of GC.
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Affiliation(s)
- Lina Li
- Department of pathology, Heping hospital, Changzhi Medical College, Changzhi 046000, China
| | - Jie Liu
- Department of pathology, Changsha Central Hospital, Changsha 410004, China
| | - Wei Huang
- Department of Oncology, Xiangya Hospital, Central South University (CSU), Changsha 410008, China; Research Center of Carcinogenesis and Targeted Therapy (RCCT), Xiangya Hospital, Central South University, Changsha 410008, China.
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Zhang CY, Yang M. Functions of three ubiquitin-conjugating enzyme 2 genes in hepatocellular carcinoma diagnosis and prognosis. World J Hepatol 2022; 14:956-971. [PMID: 35721293 PMCID: PMC9157709 DOI: 10.4254/wjh.v14.i5.956] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 03/01/2022] [Accepted: 05/07/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Liver cancer ranks the third cause of cancer-related death worldwide. The most common type of liver cancer is hepatocellular carcinoma (HCC). The survival time for HCC patients is very limited by years due to the lack of efficient treatment, failure of early diagnosis, and poor prognosis. Ubiquitination plays an essential role in the biochemical processes of a variety of cellular functions.
AIM To investigate three ubiquitination-associated genes in HCC.
METHODS Herein, the expression levels of ubiquitin-conjugating enzymes 2 (UBE2) including UBE2C, UBE2T, and UBE2S in tumor samples of HCC patients and non-tumor controls at the Cancer Genome Atlas (TCGA) database, was comprehensively analyzed. The relationship of UBE2 gene expression level with cancer stage, prognostic outcome, and TP53 mutant status was studied.
RESULTS Our results showed that UBE2C, UBE2T, and UBE2S genes were overexpressed in HCC samples compared to non-tumor tissues. Dependent on the cancer progression stage, three UBE2 genes showed higher expression in tumor tissues at all four stages compared to non-tumor control samples. Furthermore, a significantly higher expression of these genes was found in stage 2 and stage 3 cancers compared to stage 1 cancer. Additionally, overexpression of those genes was negatively associated with prognostic outcome and overall survival time. Patients with TP53 mutation showed a higher expression level of three UBE2 genes, indicating an association between UBE2 expression with p53 function.
CONCLUSION In summary, this study shed light on the potential roles of UBE2C, UBE2T, UBE2S on diagnostic and prognostic biomarkers for HCC. Moreover, based on our findings, it is appealing to further explore the correlation of those genes with TP53 mutation in HCC and the related mechanisms.
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Affiliation(s)
- Chun-Ye Zhang
- Department of Veterinary Pathobiology, University of Missouri, Columbia, MO 65211, United States
| | - Ming Yang
- Department of Surgery, University of Missouri, Columbia, MO 65211, United States
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10
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Functions of three ubiquitin-conjugating enzyme 2 genes in hepatocellular carcinoma diagnosis and prognosis. World J Hepatol 2022. [DOI: 10.4254/wjh.v14.i5.957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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11
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Huang W, Huang H, Xiao Y, Wang L, Zhang T, Fang X, Xia X. UBE2T is upregulated, predicts poor prognosis, and promotes cell proliferation and invasion by promoting epithelial-mesenchymal transition via inhibiting autophagy in an AKT/mTOR dependent manner in ovarian cancer. Cell Cycle 2022; 21:780-791. [PMID: 35130130 PMCID: PMC8973388 DOI: 10.1080/15384101.2022.2031426] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023] Open
Abstract
Aberrant upregulation and oncogenic roles of UBE2T are revealed in several cancers. However, the expression, clinical significance, and functions of UBE2T have not been explored in ovarian cancer (OC). In this study, the expression of UBE2T and its relation with clinicopathological features and prognosis of OC patients were explored by analyzing online data and experimental data. Besides, the functions of UBE2T in OC cells were investigated by in vitro experiments, including CCK-8, plate clone formation, and Transwell assays. Finally, the underlying mechanism of UBE2T associated functions in OC was analyzed. The results indicated that UBE2T was significantly upregulated in OC tissues. UBE2T expression was notably correlated with clinical features, such as primary T stage and FIGO stage in OC patients. UBE2T, acting as an independent prognostic indicator, was inversely associated with the prognosis of OC patients. The UBE2T knockdown remarkably suppressed the growth, proliferation, and invasion of OC cells, indicated by impaired cell viability, fewer cell clones, and invasive cells. Mechanistically, UBE2T depletion suppressed epithelial-mesenchymal transition (EMT), which was caused by autophagy activation due to inactivation of AKT/mTOR in OC cells with UBE2T knockdown. Collectively, our findings confirm that UBE2T upregulation predicts poor prognosis and promotes malignant progression in OC. UBE2T upregulation suppresses autophagy and subsequently boosts EMT via activating the AKT/mTOR axis, which accounts for the underlying mechanism of oncogenic roles of UBE2T in OC.
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Affiliation(s)
- Wei Huang
- Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha, China,Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital, Central South University, Changsha, P.R. China,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, P.R. China
| | - Hongyan Huang
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital, Central South University, Changsha, P.R. China
| | - Yuzhen Xiao
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital, Central South University, Changsha, P.R. China
| | - Lei Wang
- Nhc Key Laboratory of Carcinogenesis, Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha, China
| | - Tingting Zhang
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital, Central South University, Changsha, P.R. China
| | - Xiaoling Fang
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital, Central South University, Changsha, P.R. China
| | - Xiaomeng Xia
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital, Central South University, Changsha, P.R. China,CONTACT Xiaomeng Xia Department of Gynecology and Obstetrics, The Second Xiangya Hospital, Central South University, Changsha, Hunan410011, P.R. China
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12
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Chang SC, Zhang BX, Ding JL. E2-E3 ubiquitin enzyme pairing - partnership in provoking or mitigating cancers. Biochim Biophys Acta Rev Cancer 2022; 1877:188679. [DOI: 10.1016/j.bbcan.2022.188679] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 12/31/2021] [Accepted: 01/11/2022] [Indexed: 02/08/2023]
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13
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Lioulia E, Mokos P, Panteris E, Dafou D. UBE2T promotes β-catenin nuclear translocation in hepatocellular carcinoma through MAPK/ERK-dependent activation. Mol Oncol 2021; 16:1694-1713. [PMID: 34614271 PMCID: PMC9019890 DOI: 10.1002/1878-0261.13111] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 06/25/2021] [Accepted: 10/05/2021] [Indexed: 11/11/2022] Open
Abstract
Ubiquitin‐conjugating enzyme E2T (UBE2T) has been implicated in many types of cancer including hepatocellular carcinoma (HCC). Epithelial–mesenchymal transition (EMT) process plays a fundamental role during tumor metastasis and progression. However, the molecular mechanisms underlying EMT in HCC in accordance with UBE2T still remain unknown. In this study, we showed that UBE2T overexpression augmented the oncogenic properties and specifically EMT in HCC cell lines, while its silencing attenuated them. UBE2T affected the activation of EMT‐associated signaling pathways: MAPK/ERK, AKT/mTOR, and Wnt/β‐catenin. In addition, we revealed that the epithelial protein complex of E‐cadherin/β‐catenin, a vital regulator of signal transduction in tumor initiation and progression, was totally disrupted at the cell membrane. In particular, we observed that UBE2T overexpression led to E‐cadherin loss accompanied by a simultaneous elevation of both cytoplasmic and nuclear β‐catenin, while its silencing resulted in a strong E‐cadherin turnover at the cell membrane. Interestingly, chemical inhibition of the MAPK/ERK, AKT/mTOR, and Wnt/β‐catenin signaling pathways demonstrated that the nuclear translocation of β‐catenin and subsequent EMT was enhanced mainly by MAPK/ERK. Collectively, our findings demonstrate the UBE2T/MAPK‐ERK/β‐catenin axis as a critical regulator of cell state transition and EMT in HCC.
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Affiliation(s)
- Elisavet Lioulia
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
| | - Panagiotis Mokos
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
| | - Emmanuel Panteris
- Department of Botany, School of Biology, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
| | - Dimitra Dafou
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
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14
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Luo M, Zhou Y. Comprehensive analysis of differentially expressed genes reveals the promotive effects of UBE2T on colorectal cancer cell proliferation. Oncol Lett 2021; 22:714. [PMID: 34457069 PMCID: PMC8358588 DOI: 10.3892/ol.2021.12975] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Accepted: 04/01/2021] [Indexed: 12/13/2022] Open
Abstract
Colorectal cancer (CRC) is one of the most common malignancies worldwide. Via analysis using The Cancer Genome Atlas database, the present study identified 1,835 genes that were differentially expressed in CRC, including 811 upregulated and 1,024 downregulated genes. Enrichment analyses using the Database for Annotation, Visualization and Integrated Discovery tool revealed that these differentially expressed genes were associated with the regulation of CRC progression by modulating multiple pathways, such as ‘Cell Cycle, Mitotic’, ‘DNA Replication’, ‘Mitotic M-M/G1 phases’ and ‘ATM pathway’. To identify the key genes in CRC, protein-protein interaction (PPI) network analysis was performed and the hub modules in upregulated and downregulated PPI networks were identified. Ubiquitin-conjugating enzyme E2 T (UBE2T), a member of the E2 family, was identified to be a key regulator in CRC. To the best of our knowledge, the present study was the first to demonstrate that UBE2T expression was upregulated in CRC samples compared with normal tissues. Kaplan-Meier analysis revealed that higher expression levels of UBE2T were associated with worse prognosis compared with lower UBE2T expression levels in CRC. Additionally, the present study demonstrated that knockdown of UBE2T inhibited CRC cell proliferation. Flow cytometry assays revealed that UBE2T knockdown induced cell cycle arrest at G1 phase and apoptosis in vitro. These results suggested that UBE2T may be a novel potential biomarker for CRC.
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Affiliation(s)
- Min Luo
- Department of Gastroenterology, The Second Xiangya Hospital, Changsha, Hunan 410011, P.R. China.,Research Center of Digestive Disease, Central South University, Changsha, Hunan 410011, P.R. China
| | - Yuqian Zhou
- Department of Gastroenterology, The Second Xiangya Hospital, Changsha, Hunan 410011, P.R. China.,Research Center of Digestive Disease, Central South University, Changsha, Hunan 410011, P.R. China
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15
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Zhu J, Ao H, Liu M, Cao K, Ma J. UBE2T promotes autophagy via the p53/AMPK/mTOR signaling pathway in lung adenocarcinoma. J Transl Med 2021; 19:374. [PMID: 34461934 PMCID: PMC8407090 DOI: 10.1186/s12967-021-03056-1] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Accepted: 08/24/2021] [Indexed: 12/25/2022] Open
Abstract
Background Ubiquitin-conjugating enzyme E2T (UBE2T) acts as an oncogene in various types of cancer. However, the mechanisms behind its oncogenic role remain unclear in lung cancer. This study aims to explore the function and clinical relevance of UBE2T in lung cancer. Methods Lentiviral vectors were used to mediate UBE2T depletion or overexpress UBE2T in lung cancer cells. CCK8 analysis and western blotting were performed to investigate the effects of UBE2T on proliferation, autophagy, and relevant signaling pathways. To exploit the clinical significance of UBE2T, we performed immunohistochemistry staining with an anti-UBE2T antibody on 131 NSCLC samples. Moreover, we downloaded the human lung adenocarcinoma (LUAD) dataset from The Cancer Atlas Project (TCGA). Lasso Cox regression model was adopted to establish a prognostic model with UBE2T-correlated autophagy genes. Results We found that UBE2T stimulated proliferation and autophagy, and silencing this gene abolished autophagy in lung cancer cells. As suggested by Gene set enrichment analysis, we observed that UBE2T downregulated p53 levels in A549 cells and vice versa. Blockade of p53 counteracted the inhibitory effects of UBE2T depletion on autophagy. Meanwhile, the AMPK/mTOR signaling pathway was activated during UBE2T-mediated autophagy, suggesting that UBE2T promotes autophagy via the p53/AMPK/mTOR pathway. Interestingly, UBE2T overexpression increased cisplatin-trigged autophagy and led to cisplatin resistance of A549 cells, whereas inhibiting autophagy reversed drug resistance. However, no association was observed between UEB2T and overall survival in a population of 131 resectable NSCLC patients. Therefore, we developed and validated a multiple gene signature by considering UBE2T and its relevance in autophagy in lung cancer. The risk score derived from the prognostic signature significantly stratified LUAD patients into low- and high-risk groups with different overall survival. The risk score might independently predict prognosis. Interestingly, nomogram and decision curve analysis demonstrated that the signature’s prognostic accuracy culminated while combined with clinical features. Finally, the risk score showed great potential in predicting clinical chemosensitivity. Conclusions We found that UBE2T upregulates autophagy in NSCLC cells by activating the p53/AMPK/mTOR signaling pathway. The clinical predicting ability of UBE2T in LUAD can be improved by considering the autophagy-regulatory role of UBE2T. Supplementary Information The online version contains supplementary material available at 10.1186/s12967-021-03056-1.
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Affiliation(s)
- Jinhong Zhu
- Department of Clinical Laboratory, Biobank, Harbin Medical University Cancer Hospital, 150 Haping Road, Harbin, 150040, Heilongjiang, China
| | - Haijiao Ao
- Department of Clinical Oncology, Harbin Medical University Cancer Hospital, 150 Haping Road, Harbin, 150040, Heilongjiang, China
| | - Mingdong Liu
- Department of Clinical Oncology, Harbin Medical University Cancer Hospital, 150 Haping Road, Harbin, 150040, Heilongjiang, China
| | - Kui Cao
- Department of Clinical Oncology, Harbin Medical University Cancer Hospital, 150 Haping Road, Harbin, 150040, Heilongjiang, China
| | - Jianqun Ma
- Department of Thoracic Surgery, Harbin Medical University Cancer Hospital, 150 Haping Road, Harbin, 150040, Heilongjiang, China.
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Ubiquitin-conjugating enzyme E2T regulates cell proliferation and migration in cholangiocarcinoma. Anticancer Drugs 2021; 31:836-846. [PMID: 32796405 DOI: 10.1097/cad.0000000000000955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Ubiquitin-conjugating enzyme E2T (UBE2T) is overexpressed in several human cancer cells, but a role in cholangiocarcinoma (CAA) progression has not been investigated. We analyzed the expression of UBE2T in CAA tissues. Then, we generated UBE2T deregulation models in which it was overexpressed or silenced, and examined the effects on CAA malignant progression by flow cytometry, western blot, MTT assay, wound healing assay and transwell assay. We report the involvement of UBE2T in CAA malignant progression. UBE2T was found to be highly expressed in human CAA cells both in vitro and in vivo. Overexpression of UBE2T significantly enhanced epithelial-to-mesenchymal transition, proliferation, migration and invasion of CAA cells in vitro, while silencing UBE2T had opposing effects. Furthermore, UBE2T appears to exert its effects via the mammalian target of rapamycin (mTOR) pathway as the cellular effects caused by UBE2T overexpression are inhibited by the mTOR inhibitor rapamycin. Our findings suggest that UBE2T may have potential as a new therapeutic target for the prevention or treatment of CAA.
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17
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Ubiquitin-Conjugating Enzymes in Cancer. Cells 2021; 10:cells10061383. [PMID: 34199813 PMCID: PMC8227520 DOI: 10.3390/cells10061383] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 05/28/2021] [Accepted: 05/30/2021] [Indexed: 12/22/2022] Open
Abstract
The ubiquitin-mediated degradation system is responsible for controlling various tumor-promoting processes, including DNA repair, cell cycle arrest, cell proliferation, apoptosis, angiogenesis, migration and invasion, metastasis, and drug resistance. The conjugation of ubiquitin to a target protein is mediated sequentially by the E1 (activating)‒E2 (conjugating)‒E3 (ligating) enzyme cascade. Thus, E2 enzymes act as the central players in the ubiquitination system, modulating various pathophysiological processes in the tumor microenvironment. In this review, we summarize the types and functions of E2s in various types of cancer and discuss the possibility of E2s as targets of anticancer therapeutic strategies.
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18
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Li K, Han F, Wu Y, Wang X. miR-340 Promotes Retinoblastoma Cell Proliferation, Migration and Invasion Through Targeting WIF1. Onco Targets Ther 2021; 14:3635-3648. [PMID: 34113129 PMCID: PMC8187089 DOI: 10.2147/ott.s302800] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 05/07/2021] [Indexed: 11/23/2022] Open
Abstract
Background MicroRNAs (miRNAs) function as important regulators of gene expression involved in tumor pathogenesis, including retinoblastoma. However, the expression profiles and potential roles in retinoblastoma are still largely unclear. Material and Methods Differentially expressed miRNAs (DEmiRs) and genes (DEGs) in retinoblastoma were extracted from Gene Expression Omnibus (GEO) repository. Expression levels of miR-340 and WIF1 were detected in retinoblastoma tissues and cell lines by qRT-PCR. Both gain-of-function and loss-of-function experiments were performed to explore the effects of miR-340 on cell proliferation, migration and invasion. Bioinformatics analysis and luciferase reporter assay were used to explore the interaction between miR-340 and WIF1. Results A total of 11 DEmiRs were identified in retinoblastoma tissue and blood samples. Among them, we validated that miR-340 was the most highly expressed miRNA and correlated with tumor size, ICRB stage and optic nerve invasion. miR-340 was observed to enhance the proliferation, migration and invasion capacity of retinoblastoma cells. We then identified 26 DEGs from 3 retinoblastoma GEO datasets and subsequently constructed a miRNA–mRNA regulatory network. Further analysis revealed that WIF1 was a direct target of miR-340. Moreover, overexpression of WIF1 could repress retinoblastoma progression induced by miR-340 in vitro and in vivo. Conclusion Collectively, miR-340 functioned as an oncomiRNA to promote retinoblastoma cell proliferation, migration and invasion via regulating WIF1. Our data also provided multiple miRNAs and genes that may contribute to a better understanding of retinoblastoma pathogenesis.
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Affiliation(s)
- Kun Li
- Department of Pediatric Ophthalmology, Cangzhou Central Hospital, Cangzhou, 061001, People's Republic of China
| | - Fengmei Han
- Department of Pediatric Ophthalmology, Cangzhou Central Hospital, Cangzhou, 061001, People's Republic of China
| | - Yanping Wu
- Department of Pediatric Ophthalmology, Cangzhou Central Hospital, Cangzhou, 061001, People's Republic of China
| | - Xue Wang
- Department of Pediatric Ophthalmology, Cangzhou Central Hospital, Cangzhou, 061001, People's Republic of China
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Vriend J, Nachtigal MW. Ubiquitin Proteasome Pathway Transcriptome in Epithelial Ovarian Cancer. Cancers (Basel) 2021; 13:cancers13112659. [PMID: 34071321 PMCID: PMC8198060 DOI: 10.3390/cancers13112659] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 05/22/2021] [Accepted: 05/24/2021] [Indexed: 12/26/2022] Open
Abstract
In this article, we reviewed the transcription of genes coding for components of the ubiquitin proteasome pathway in publicly available datasets of epithelial ovarian cancer (EOC). KEGG analysis was used to identify the major pathways distinguishing EOC of low malignant potential (LMP) from invasive high-grade serous ovarian carcinomas (HGSOC), and to identify the components of the ubiquitin proteasome system that contributed to these pathways. We identified elevated transcription of several genes encoding ubiquitin conjugases associated with HGSOC. Fifty-eight genes coding for ubiquitin ligases and more than 100 genes encoding ubiquitin ligase adaptors that were differentially expressed between LMP and HGSOC were also identified. Many differentially expressed genes encoding E3 ligase adaptors were Cullin Ring Ligase (CRL) adaptors, and 64 of them belonged to the Cullin 4 DCX/DWD family of CRLs. The data suggest that CRLs play a role in HGSOC and that some of these proteins may be novel therapeutic targets. Differential expression of genes encoding deubiquitinases and proteasome subunits was also noted.
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Affiliation(s)
- Jerry Vriend
- Department of Human Anatomy and Cell Science, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB R3E 0J9, Canada
- Correspondence: ; Tel.: +1-204-789-3732
| | - Mark W. Nachtigal
- Department of Biochemistry and Medical Genetics, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB R3E 0J9, Canada;
- Department of Obstetrics, Gynecology & Reproductive Sciences, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB R3E 0J9, Canada
- CancerCare Manitoba Research Institute, Winnipeg, MB R3E 0V9, Canada
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20
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Wang X, Liu Y, Leng X, Cao K, Sun W, Zhu J, Ma J. UBE2T Contributes to the Prognosis of Esophageal Squamous Cell Carcinoma. Pathol Oncol Res 2021; 27:632531. [PMID: 34257599 PMCID: PMC8262217 DOI: 10.3389/pore.2021.632531] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 03/01/2021] [Indexed: 12/14/2022]
Abstract
Background: The ubiquitin-conjugating enzyme E2 T (UBE2T) has been shown to contribute to several types of cancer. However, no publication has reported its implication in esophageal squamous cell cancer (ESCC). Methods: We explored several public databases, including The Cancer Genome Atlas (TCGA), Oncomine, and gene expression Omnibus (GEO). Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis, and gene set enrichment analysis (GSEA) were adopted to explore involved signaling pathways. We used R software to develop prognostic gene signatures with the LASSO and stepwise Cox regression analysis, separately. Immunohistochemistry staining was performed to detect UBE2T in 90 ESCC patients, followed by survival analysis. We also used an R package pRRophetic to evaluate chemotherapy sensitivity for the TCGA–ESCC cohort. Results: We found significantly increased UBE2T transcript levels and DNA copy numbers in ESCC tissues. UBE2T was associated with the p53 signaling pathway, cell cycle, Fanconi anemia pathway, and DNA replication, as indicated by Go, KEGG pathway enrichment analysis. These pathways were also upregulated in ESCC. The prognostic signatures with UBE2T-associated genes could stratify ESCC patients into low- and high-risk groups with significantly different overall survival in the TCGA–ESCC cohort. We also validated the association of UBE2T with unfavorable survival in 90 ESCC patients recruited for this study. Moreover, we found that the low-risk group was significantly more sensitive to chemotherapy than the high-risk group. Conclusions: UBE2T is involved in the development of ESCC, and gene signatures derived from UBE2T-associated genes are predictive of prognosis in ESCC.
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Affiliation(s)
- Xiaoyuan Wang
- Department of Thoracic Surgery, Harbin Medical University Cancer Hospital, Harbin, China
| | - Yang Liu
- Department of Oncology, Harbin Medical University Cancer Hospital, Harbin, China
| | - Xue Leng
- Department of Thoracic Surgery, Harbin Medical University Cancer Hospital, Harbin, China
| | - Kui Cao
- Department of Oncology, Harbin Medical University Cancer Hospital, Harbin, China
| | - Wentao Sun
- Department of Radiology, Harbin Medical University Cancer Hospital, Harbin, China
| | - Jinhong Zhu
- Department of Clinical Laboratory, Biobank, Harbin Medical University Cancer Hospital, Harbin, China
| | - Jianqun Ma
- Department of Thoracic Surgery, Harbin Medical University Cancer Hospital, Harbin, China
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21
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Du X, Song H, Shen N, Hua R, Yang G. The Molecular Basis of Ubiquitin-Conjugating Enzymes (E2s) as a Potential Target for Cancer Therapy. Int J Mol Sci 2021; 22:ijms22073440. [PMID: 33810518 PMCID: PMC8037234 DOI: 10.3390/ijms22073440] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 03/18/2021] [Accepted: 03/23/2021] [Indexed: 01/06/2023] Open
Abstract
Ubiquitin-conjugating enzymes (E2s) are one of the three enzymes required by the ubiquitin-proteasome pathway to connect activated ubiquitin to target proteins via ubiquitin ligases. E2s determine the connection type of the ubiquitin chains, and different types of ubiquitin chains regulate the stability and activity of substrate proteins. Thus, E2s participate in the regulation of a variety of biological processes. In recent years, the importance of E2s in human health and diseases has been particularly emphasized. Studies have shown that E2s are dysregulated in variety of cancers, thus it might be a potential therapeutic target. However, the molecular basis of E2s as a therapeutic target has not been described systematically. We reviewed this issue from the perspective of the special position and role of E2s in the ubiquitin-proteasome pathway, the structure of E2s and biological processes they are involved in. In addition, the inhibitors and microRNAs targeting E2s are also summarized. This article not only provides a direction for the development of effective drugs but also lays a foundation for further study on this enzyme in the future.
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22
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Wu M, Li X, Huang W, Chen Y, Wang B, Liu X. Ubiquitin-conjugating enzyme E2T(UBE2T) promotes colorectal cancer progression by facilitating ubiquitination and degradation of p53. Clin Res Hepatol Gastroenterol 2021; 45:101493. [PMID: 32736946 DOI: 10.1016/j.clinre.2020.06.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 06/16/2020] [Accepted: 06/23/2020] [Indexed: 02/04/2023]
Abstract
OBJECTIVES The expression level of Ubiquitin-conjugating enzyme E2T (UBE2T) is upregulated in various types of human tumors. We explored the correlation and regulatory mechanism of UBE2T in the development of colorectal cancer (CRC). METHODS Quantitative reverse transcription-polymerase chain reaction (qRT-PCR) was used to examine the expression of UBE2T in the CRC tissues and cell lines. Immunohistochemical staining, spearman correlation analysis, and Kaplan Meier-survival analysis were used to demonstrate the correlation between UBE2T high expression level and the clinical characteristics of malignant patients and the overall survival. The proliferation, apoptosis, migration and invasion of CRC cells were analyzed by cell transfection, MTT, colony formation, scratch assay, transwell, and flow cytometry. Furthermore, the expression of cell proliferation and apoptosis related proteins and ubiquitination of p53 were detected by western blot. RESULTS UBE2T was up-regulated in CRC tissues and cell lines, and high expression level of UBE2T was correlated with the clinical characteristics of malignant of CRC patients (P<0.05), and patients with high expression level of UBE2T had lower overall survival (P=0.0455). In addition, UBE2T could promote the growth, proliferation, invasion and metastasis of CRC cells and inhibit the apoptosis. At the same time, knockdown of UBE2T inhibited the growth of transplanted tumor in mice of subcutaneous CRC model. Moreover, our experimental results proved that UBE2T regulated the expression of downstream related proteins through ubiquitination of p53 protein to promote the occurrence and development of CRC. CONCLUSION Our study elucidated that high expression of UBE2T would enhance the development of CRC, and then further explored its molecular mechanism both in vitro and in vivo. The results indicated that UBE2T facilitated ubiquitination and degradation of p53, which predicts the possibility of UBE2T as one of molecular diagnosis markers, prognostic indicators and therapeutic drug targets of CRC patients.
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Affiliation(s)
- Mengqiong Wu
- Department of Gynecology, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou City, Hainan Province, 570311, China
| | - Xianglu Li
- Department of Oncology, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou City, Hainan Province, 570311, China
| | - Weiwei Huang
- Department of General Surgery, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, No.19 Xiu Hua Road, Xiuying District, Haikou City, 570311, Hainan Province, China
| | - Yiming Chen
- Department of General Surgery, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, No.19 Xiu Hua Road, Xiuying District, Haikou City, 570311, Hainan Province, China
| | - Baochun Wang
- Department of General Surgery, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, No.19 Xiu Hua Road, Xiuying District, Haikou City, 570311, Hainan Province, China
| | - Xin Liu
- Department of General Surgery, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, No.19 Xiu Hua Road, Xiuying District, Haikou City, 570311, Hainan Province, China.
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TMEM106C contributes to the malignant characteristics and poor prognosis of hepatocellular carcinoma. Aging (Albany NY) 2021; 13:5585-5606. [PMID: 33591950 PMCID: PMC7950261 DOI: 10.18632/aging.202487] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 09/03/2020] [Indexed: 02/07/2023]
Abstract
Transmembrane protein (TMEM) is a kind of integral membrane protein that spans biological membranes. The functions of most members of the TMEM family are unknown. Here, we conducted bioinformatic analysis and biological validation to investigate the role of TMEM106C in HCC. First, GEPIA and OncomineTM were used to analyze TMEM106C expression, which was verified by real-time PCR and western blot analyses. Then, the biological functions of TMEM106C were explored by CCK8 and transwell assays. The prognostic value of TMEM106C was analyzed by UALCAN. LinkedOmics was used to analyze TMEM106C pathways generated by Gene Ontology. A protein-protein interaction network (PPI) was constructed by GeneMANIA. We demonstrated that TMEM106C was overexpressed in HCC and that inhibition of TMEM106C significantly suppressed the proliferation and metastasis of HCC through targeting CENPM and DLC-1. Upregulation of TMEM106C was closely correlated with sex, tumor stage, tumor grade and prognosis. Overexpression of TMEM106C was linked to functional networks involving organelle fission and cell cycle signaling pathways through the regulation of CDK kinases, E2F1 transcription factors and miRNAs. Our data demonstrated that TMEM106C contributes to malignant characteristics and poor prognosis in HCC, which may serve as a prognostic biomarker and potential therapeutic target.
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Zhuang J, Dai S, Zhang L, Gao P, Han Y, Tian G, Yan N, Tang M, Kui L. Identifying Breast Cancer-induced Gene Perturbations and its Application in Guiding Drug Repurposing. Curr Bioinform 2021. [DOI: 10.2174/1574893615666200203104214] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Breast cancer is a complex disease with high prevalence in women, the
molecular mechanisms of which are still unclear at present. Most transcriptomic studies on breast
cancer focus on differential expression of each gene between tumor and the adjacent normal tissues,
while the other perturbations induced by breast cancer including the gene regulation variations, the
changes of gene modules and the pathways, which might be critical to the diagnosis, treatment and
prognosis of breast cancer are more or less ignored.
Objective:
We presented a complete process to study breast cancer from multiple perspectives,
including differential expression analysis, constructing gene co-expression networks, modular
differential connectivity analysis, differential gene connectivity analysis, gene function enrichment
analysis key driver analysis. In addition, we prioritized the related anti-cancer drugs based on
enrichment analysis between differential expression genes and drug perturbation signatures.
Methods:
The RNA expression profiles of 1109 breast cancer tissue and 113 non-tumor tissues were
downloaded from The Cancer Genome Atlas (TCGA) database. Differential expression of RNAs
was identified using the “DESeq2” bioconductor package in R, and gene co-expression networks
were constructed using the weighted gene co-expression network analysis (WGCNA). To compare
the module changes and gene co-expression variations between tumor and the adjacent normal
tissues, modular differential connectivity (MDC) analysis and differential gene connectivity analysis
(DGCA) were performed.
Results:
Top differential genes like MMP11 and COL10A1 were known to be associated with breast
cancer. And we found 23 modules in the tumor network had significantly different co-expression
patterns. The top differential modules were enriched in Goterms related to breast cancer like MHC
protein complex, leukocyte activation, regulation of defense response and so on. In addition, key
genes like UBE2T driving the top differential modules were significantly correlated with the
patients’ survival. Finally, we predicted some potential breast cancer drugs, such as Eribulin,
Taxane, Cisplatin and Oxaliplatin.
Conclusion:
As an indication, this framework might be useful in understanding the molecular
pathogenesis of diseases like breast cancer and inferring useful drugs for personalized medication.
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Affiliation(s)
- Jujuan Zhuang
- School of Science, Dalian Maritime University, Dalian, Liaoning, 116026, China
| | - Shuang Dai
- School of Science, Dalian Maritime University, Dalian, Liaoning, 116026, China
| | - Lijun Zhang
- School of Science, Dalian Maritime University, Dalian, Liaoning, 116026, China
| | - Pan Gao
- School of Science, Dalian Maritime University, Dalian, Liaoning, 116026, China
| | - Yingmin Han
- Geneis Beijing Co., Ltd., Beijing, 100102, China
| | - Geng Tian
- Geneis Beijing Co., Ltd., Beijing, 100102, China
| | - Na Yan
- Geneis Beijing Co., Ltd., Beijing, 100102, China
| | - Min Tang
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Ling Kui
- Dana- Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, United States
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25
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Ho NPY, Leung CON, Wong TL, Lau EYT, Lei MML, Mok EHK, Leung HW, Tong M, Ng IOL, Yun JP, Ma S, Lee TKW. The interplay of UBE2T and Mule in regulating Wnt/β-catenin activation to promote hepatocellular carcinoma progression. Cell Death Dis 2021; 12:148. [PMID: 33542213 PMCID: PMC7862307 DOI: 10.1038/s41419-021-03403-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 01/01/2021] [Accepted: 01/05/2021] [Indexed: 12/24/2022]
Abstract
Emerging evidence indicates the role of cancer stem cells (CSCs) in tumor relapse and therapeutic resistance in patients with hepatocellular carcinoma (HCC). To identify novel targets against liver CSCs, an integrative analysis of publicly available datasets involving HCC clinical and stemness-related data was employed to select genes that play crucial roles in HCC via regulation of liver CSCs. We revealed an enrichment of an interstrand cross-link repair pathway, in which ubiquitin-conjugating enzyme E2 T (UBE2T) was the most significantly upregulated. Consistently, our data showed that UBE2T was upregulated in enriched liver CSC populations. Clinically, UBE2T overexpression in HCC was further confirmed at mRNA and protein levels and was correlated with advanced tumor stage and poor patient survival. UBE2T was found to be critically involved in the regulation of liver CSCs, as evidenced by increases in self-renewal, drug resistance, tumorigenicity, and metastasis abilities. Mule, an E3 ubiquitin ligase, was identified to be the direct protein binding partner of UBE2T. Rather than the canonical role of acting as a mediator to transfer ubiquitin to E3 ligases, UBE2T is surprisingly able to physically bind and regulate the protein expression of Mule via ubiquitination. Mule was found to directly degrade β-catenin protein, and UBE2T was found to mediate liver CSC functions through direct regulation of Mule-mediated β-catenin degradation; this effect was abolished when the E2 activity of UBE2T was impaired. In conclusion, we revealed a novel UBE2T/Mule/β-catenin signaling cascade that is involved in the regulation of liver CSCs, which provides an attractive potential therapeutic target for HCC.
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Affiliation(s)
- Nicole Pui Yu Ho
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, Hong Kong
| | - Carmen Oi Ning Leung
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, Hong Kong
| | - Tin Lok Wong
- School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong
| | | | - Martina Mang Leng Lei
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, Hong Kong
| | - Etienne Ho Kit Mok
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, Hong Kong
| | - Hoi Wing Leung
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, Hong Kong
| | - Man Tong
- School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong
| | - Irene Oi Lin Ng
- Department of Pathology, Queen Mary Hospital, The University of Hong Kong, Hong Kong, Hong Kong.,State Key Laboratory of Liver Research, The University of Hong Kong, Hong Kong, Hong Kong
| | - Jing Ping Yun
- Department of Pathology, Sun Yat Sen University Cancer Center, Guangzhou, China
| | - Stephanie Ma
- School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong.,State Key Laboratory of Liver Research, The University of Hong Kong, Hong Kong, Hong Kong
| | - Terence Kin Wah Lee
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, Hong Kong. .,State Key Laboratory of Chemical Biology and Drug Discovery, The Hong Kong Polytechnic University, Hong Kong, Hong Kong.
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26
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Yu Z, Jiang X, Qin L, Deng H, Wang J, Ren W, Li H, Zhao L, Liu H, Yan H, Shi W, Wang Q, Luo C, Long B, Zhou H, Sun H, Jiao Z. A novel UBE2T inhibitor suppresses Wnt/β-catenin signaling hyperactivation and gastric cancer progression by blocking RACK1 ubiquitination. Oncogene 2021; 40:1027-1042. [PMID: 33323973 PMCID: PMC7862066 DOI: 10.1038/s41388-020-01572-w] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 10/20/2020] [Accepted: 11/17/2020] [Indexed: 12/24/2022]
Abstract
Dysregulation of the Wnt/β-catenin signaling pathway is critically involved in gastric cancer (GC) progression. However, current Wnt pathway inhibitors being studied in preclinical or clinical settings for other cancers such as colorectal and pancreatic cancers are either too cytotoxic or insufficiently efficacious for GC. Thus, we screened new potent targets from β-catenin destruction complex associated with GC progression from clinical samples, and found that scaffolding protein RACK1 deficiency plays a significant role in GC progression, but not APC, AXIN, and GSK3β. Then, we identified its upstream regulator UBE2T which promotes GC progression via hyperactivating the Wnt/β-catenin signaling pathway through the ubiquitination and degradation of RACK1 at the lysine K172, K225, and K257 residues independent of an E3 ligase. Indeed, UBE2T protein level is negatively associated with prognosis in GC patients, suggesting that UBE2T is a promising target for GC therapy. Furthermore, we identified a novel UBE2T inhibitor, M435-1279, and suggested that M435-1279 acts inhibit the Wnt/β-catenin signaling pathway hyperactivation through blocking UBE2T-mediated degradation of RACK1, resulting in suppression of GC progression with lower cytotoxicity in the meantime. Overall, we found that increased UBE2T levels promote GC progression via the ubiquitination of RACK1 and identified a novel potent inhibitor providing a balance between growth inhibition and cytotoxicity as well, which offer a new opportunity for the specific GC patients with aberrant Wnt/β-catenin signaling.
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Affiliation(s)
- Zeyuan Yu
- Department of General Surgery, Lanzhou University Second Hospital, 730000, Lanzhou, Gansu, China
| | - Xiangyan Jiang
- Department of General Surgery, Lanzhou University Second Hospital, 730000, Lanzhou, Gansu, China
| | - Long Qin
- Cui-ying Experimental Center, Lanzhou University Second Hospital, 730000, Lanzhou, Gansu, China
| | - Haixiao Deng
- Department of General Surgery, Lanzhou University Second Hospital, 730000, Lanzhou, Gansu, China
| | - Jianli Wang
- Cui-ying Experimental Center, Lanzhou University Second Hospital, 730000, Lanzhou, Gansu, China
| | - Wen Ren
- Cui-ying Experimental Center, Lanzhou University Second Hospital, 730000, Lanzhou, Gansu, China
| | - Hongbin Li
- Cui-ying Experimental Center, Lanzhou University Second Hospital, 730000, Lanzhou, Gansu, China
| | - Lei Zhao
- Cui-ying Experimental Center, Lanzhou University Second Hospital, 730000, Lanzhou, Gansu, China
| | - Huanxiang Liu
- School of pharmacy, Lanzhou University, 730000, Lanzhou, Gansu, China
| | - Hong Yan
- Department of Pathology, Lanzhou University Second Hospital, 730000, Lanzhou, Gansu, China
| | - Wengui Shi
- Cui-ying Experimental Center, Lanzhou University Second Hospital, 730000, Lanzhou, Gansu, China
| | - Qi Wang
- Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, 02215, USA
| | - Changjiang Luo
- Department of General Surgery, Lanzhou University Second Hospital, 730000, Lanzhou, Gansu, China
| | - Bo Long
- Department of General Surgery, Lanzhou University Second Hospital, 730000, Lanzhou, Gansu, China
| | - Huinian Zhou
- Department of General Surgery, Lanzhou University Second Hospital, 730000, Lanzhou, Gansu, China
| | - Hui Sun
- Cui-ying Experimental Center, Lanzhou University Second Hospital, 730000, Lanzhou, Gansu, China.
| | - Zuoyi Jiao
- Department of General Surgery, Lanzhou University Second Hospital, 730000, Lanzhou, Gansu, China.
- Cui-ying Experimental Center, Lanzhou University Second Hospital, 730000, Lanzhou, Gansu, China.
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27
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Qiao L, Dong C, Ma B. UBE2T promotes proliferation, invasion and glycolysis of breast cancer cells by regualting the PI3K/AKT signaling pathway. J Recept Signal Transduct Res 2021; 42:151-159. [PMID: 33435787 DOI: 10.1080/10799893.2020.1870495] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
PURPOSE Breast cancer (BCa) is one of the most common gynecological malignancies. Ubiquitin-coupled enzyme E2T (UBE2T) has been demonstrated to play crucial roles in various tumors. METHODS UBE2T levels were detected using quantitative real time PCR and western blot. CCK-8 and colony formation assays were used to evaluate cell proliferation. A xenograft model was used to evaluate the effects of UBE2T on tumor growth in mice, and immunohistochemistry (IHC) assay was performed to detect the expression of UBE2T and Ki-67. Transwell assay was performed to determine cell migration and invasion. The ATP level, glucose consumption and lactate production were measured using the corresponding commercial kits. Western blot assay was used to detect the levels of epithelial-mesenchymal transformation (EMT), glycolytic and the PI3K/AKT pathway related proteins regulated by UBE2T. RESULTS Upregulation of UBE2T expression in human BCa tissues was found in human clinical BCa tissues and The Cancer Genome Atlas (TCGA) dataset. The expression of UBE2T was confirmed to be up-regulated in BCa cells compared to normal breast epithelial cell line (MCF-10A). Overexpression of UBE2T promoted proliferation, migration, invasion and glycolysis in BCa cells, while UBE2T knockdown showed the opposite results. Moreover, UBE2T knockdown suppressed tumor growth in mice. Further mechanism analysis shows that UBE2T participated in the regulation of BCa progression through affecting the PI3K/AKT signaling pathway. CONCLUSION UBE2T promoted proliferation, invasion and glycolysis through modulating PI3K/AKT signaling pathway in BCa, implying that UBE2T may provide a promising therapeutic target for the therapy of BCa.
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Affiliation(s)
- Lei Qiao
- Department of Breast, Head and Neck Surgery, Xinjiang Medical University affiliated Tumor Hospital, Urumqi, China
| | - Chao Dong
- Department of Breast, Head and Neck Surgery, Xinjiang Medical University affiliated Tumor Hospital, Urumqi, China
| | - Binlin Ma
- Department of Breast, Head and Neck Surgery, Xinjiang Medical University affiliated Tumor Hospital, Urumqi, China
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28
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Identifying breast cancer subtypes associated modules and biomarkers by integrated bioinformatics analysis. Biosci Rep 2021; 41:227295. [PMID: 33313822 PMCID: PMC7796196 DOI: 10.1042/bsr20203200] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 12/07/2020] [Accepted: 12/09/2020] [Indexed: 12/13/2022] Open
Abstract
Breast cancer is the most common form of cancer afflicting women worldwide. Patients with breast cancer of different molecular classifications need varied treatments. Since it is known that the development of breast cancer involves multiple genes and functions, identification of functional gene modules (clusters of the functionally related genes) is indispensable as opposed to isolated genes, in order to investigate their relationship derived from the gene co-expression analysis. In total, 6315 differentially expressed genes (DEGs) were recognized and subjected to the co-expression analysis. Seven modules were screened out. The blue and turquoise modules have been selected from the module trait association analysis since the genes in these two modules are significantly correlated with the breast cancer subtypes. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment show that the blue module genes engaged in cell cycle, DNA replication, p53 signaling pathway, and pathway in cancer. According to the connectivity analysis and survival analysis, 8 out of 96 hub genes were filtered and have shown the highest expression in basal-like breast cancer. Furthermore, the hub genes were validated by the external datasets and quantitative real-time PCR (qRT-PCR). In summary, hub genes of Cyclin E1 (CCNE1), Centromere Protein N (CENPN), Checkpoint kinase 1 (CHEK1), Polo-like kinase 1 (PLK1), DNA replication and sister chromatid cohesion 1 (DSCC1), Family with sequence similarity 64, member A (FAM64A), Ubiquitin Conjugating Enzyme E2 C (UBE2C) and Ubiquitin Conjugating Enzyme E2 T (UBE2T) may serve as the prognostic markers for different subtypes of breast cancer.
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29
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Heitor da Silva Maués J, Ferreira Ribeiro H, de Maria Maués Sacramento R, Maia de Sousa R, Pereira de Tommaso R, Dourado Kovacs Machado Costa B, Cardoso Soares P, Pimentel Assumpção P, de Fátima Aquino Moreira-Nunes C, Mário Rodriguez Burbano R. Downregulated genes by silencing MYC pathway identified with RNA-SEQ analysis as potential prognostic biomarkers in gastric adenocarcinoma. Aging (Albany NY) 2020; 12:24651-24670. [PMID: 33351778 PMCID: PMC7803532 DOI: 10.18632/aging.202260] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Accepted: 10/31/2020] [Indexed: 12/24/2022]
Abstract
MYC overexpression is a common phenomenon in gastric carcinogenesis. In this study, we identified genes differentially expressed with a downregulated profile in gastric cancer (GC) cell lines with silenced MYC. The TTLL12, CDKN3, CDC16, PTPRA, MZT2B, UBE2T genes were validated using qRT-PCR, western blot and immunohistochemistry in tissues of 213 patients with diffuse and intestinal GC. We identified high levels of TTLL12, MZT2B, CDC16, UBE2T, associated with early and advanced stages, lymph nodes, distant metastases and risk factors such as H. pylori. Our results show that in the diffuse GC the overexpression of CDC16 and UBE2T indicate markers of poor prognosis higher than TTLL12. That is, patients with overexpression of these two genes live less than patients with overexpression of TTLL12. In the intestinal GC, patients who overexpressed CDC16 had a significantly lower survival rate than patients who overexpressed MZT2B and UBE2T, indicating in our data a worse prognostic value of CDC16 compared to the other two genes. PTPRA and CDKN3 proved to be important for assessing tumor progression in the early and advanced stages. In summary, in this study, we identified diagnostic and prognostic biomarkers of GC under the control of MYC, related to the cell cycle and the neoplastic process.
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Affiliation(s)
- Jersey Heitor da Silva Maués
- Laboratory of Human Cytogenetics, Institute of Biological Sciences, Federal University of Pará, Belém 66075-110, PA, Brazil
- Laboratory of Molecular Biology, Ophir Loyola Hospital, Belém, Belém 66063-240, PA, Brazil
| | - Helem Ferreira Ribeiro
- Laboratory of Human Cytogenetics, Institute of Biological Sciences, Federal University of Pará, Belém 66075-110, PA, Brazil
- Center of Biological and Health Sciences, Department of Biomedicine, University of Amazon, Belém 66060-000, PA, Brazil
| | | | - Rafael Maia de Sousa
- Laboratory of Molecular Biology, Ophir Loyola Hospital, Belém, Belém 66063-240, PA, Brazil
| | | | | | - Paulo Cardoso Soares
- Laboratory of Molecular Biology, Ophir Loyola Hospital, Belém, Belém 66063-240, PA, Brazil
| | - Paulo Pimentel Assumpção
- Oncology Research Nucleus, University Hospital João de Barros Barreto, Federal University of Pará, Belém 66073-000, PA, Brazil
| | | | - Rommel Mário Rodriguez Burbano
- Laboratory of Human Cytogenetics, Institute of Biological Sciences, Federal University of Pará, Belém 66075-110, PA, Brazil
- Laboratory of Molecular Biology, Ophir Loyola Hospital, Belém, Belém 66063-240, PA, Brazil
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30
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Zou R, Xu H, Li F, Wang S, Zhu L. Increased Expression of UBE2T Predicting Poor Survival of Epithelial Ovarian Cancer: Based on Comprehensive Analysis of UBE2s, Clinical Samples, and the GEO Database. DNA Cell Biol 2020; 40:36-60. [PMID: 33180631 DOI: 10.1089/dna.2020.5823] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Ubiquitin-conjugating enzymes E2 (UBE2) have been reported in the microenvironment of various malignant tumors, but their correlation with ovarian cancer (OC) remains elusive. This study aimed to systematically analyze the expression patterns, prognostic value, genetic variation, and biological functions of 12 members of the UBE2 gene family in OC through the Oncomine, Gene Expression Profiling Interactive Analysis (GEPIA), Kaplan-Meier plotter, cBioPortal, and Search Tool for the Retrieval of Interacting Genes/Proteins (STRING) databases, respectively. We found that the mRNA levels of UBE2C, UBE2N, UBE2S, and UBE2T were significantly upregulated in OC compared with those in normal ovarian tissue. In patients with serous ovarian cancer (SOC), UBE2A, UBE2B, UBE2C, UBE2G, UBE2R2, and UBE2T upregulation were associated with poor overall survival. Moreover, UBE2A, UBE2N, UBE2R2, and UBE2T upregulation and UBE2G downregulation were associated with poor progression-free survival. UBE2T exhibited a strong correlation with OC and was thus further examined. We found that UBE2T has a high diagnostic accuracy (area under the receiver operating characteristic curve = 0.969) in epithelial ovarian cancer (EOC). Immunohistochemical assays and the Gene Expression Omnibus (GEO) database revealed that UBE2T was significantly upregulated in EOC compared with that in borderline tumors, benign tumors, and normal ovarian tissues, and its high expression was associated with poor prognosis. The Cox model showed that UBE2T upregulation was an independent risk factor affecting the prognosis of EOC and SOC. Furthermore, UBE2T was associated with specific immune cells and was mainly involved in cell cycle-related events. Genomic analysis showed that TP53 and TTN mutations were associated with UBE2T expression. Gene copy number amplification and hypomethylation may be responsible for UBE2T upregulation in OC. In conclusion, UBE2 family members may play a role in the development of OC. Specifically, UBE2T could serve as a new prognostic marker and therapeutic target for this disease. (IRB Approval No. 2020PS533K).
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Affiliation(s)
- Ruoyao Zou
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China.,Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Shenyang, Liaoning, China
| | - Haoya Xu
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China.,Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Shenyang, Liaoning, China
| | - Feifei Li
- Department of Gynecology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Shengke Wang
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Liancheng Zhu
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China.,Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Shenyang, Liaoning, China
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31
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Farley-Barnes KI, Deniz E, Overton MM, Khokha MK, Baserga SJ. Paired Box 9 (PAX9), the RNA polymerase II transcription factor, regulates human ribosome biogenesis and craniofacial development. PLoS Genet 2020; 16:e1008967. [PMID: 32813698 PMCID: PMC7437866 DOI: 10.1371/journal.pgen.1008967] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 06/30/2020] [Indexed: 12/30/2022] Open
Abstract
Dysregulation of ribosome production can lead to a number of developmental disorders called ribosomopathies. Despite the ubiquitous requirement for these cellular machines used in protein synthesis, ribosomopathies manifest in a tissue-specific manner, with many affecting the development of the face. Here we reveal yet another connection between craniofacial development and making ribosomes through the protein Paired Box 9 (PAX9). PAX9 functions as an RNA Polymerase II transcription factor to regulate the expression of proteins required for craniofacial and tooth development in humans. We now expand this function of PAX9 by demonstrating that PAX9 acts outside of the cell nucleolus to regulate the levels of proteins critical for building the small subunit of the ribosome. This function of PAX9 is conserved to the organism Xenopus tropicalis, an established model for human ribosomopathies. Depletion of pax9 leads to craniofacial defects due to abnormalities in neural crest development, a result consistent with that found for depletion of other ribosome biogenesis factors. This work highlights an unexpected layer of how the making of ribosomes is regulated in human cells and during embryonic development.
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Affiliation(s)
- Katherine I. Farley-Barnes
- Department of Molecular Biophysics & Biochemistry, Yale University School of Medicine, New Haven, Connecticut, United States of America
| | - Engin Deniz
- Pediatric Genomics Discovery Program, Department of Pediatrics, Yale University School of Medicine, New Haven, Connecticut, United States of America
| | - Maya M. Overton
- Department of Molecular Biophysics & Biochemistry, Yale University School of Medicine, New Haven, Connecticut, United States of America
| | - Mustafa K. Khokha
- Pediatric Genomics Discovery Program, Department of Pediatrics, Yale University School of Medicine, New Haven, Connecticut, United States of America
- Department of Genetics, Yale University School of Medicine, New Haven, Connecticut, United States of America
| | - Susan J. Baserga
- Department of Molecular Biophysics & Biochemistry, Yale University School of Medicine, New Haven, Connecticut, United States of America
- Department of Genetics, Yale University School of Medicine, New Haven, Connecticut, United States of America
- Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, Connecticut, United States of America
- * E-mail:
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32
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Chen X, Zhang S, Liu C, Li G, Lu S, Wang Y, Zhang X, Huang D, Qiu Y, Liu Y. UBE2O Promotes Progression and Epithelial-Mesenchymal Transition in Head and Neck Squamous Cell Carcinoma. Onco Targets Ther 2020; 13:6191-6202. [PMID: 32636643 PMCID: PMC7334014 DOI: 10.2147/ott.s253861] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Accepted: 06/10/2020] [Indexed: 12/12/2022] Open
Abstract
Background UBE2O, as a member of the ubiquitin-conjugating enzyme family, is abnormally expressed and exhibits abnormal functions in human malignancies. However, the function of UBE2O in head and neck squamous cell carcinoma (HNSCC) remains unknown. Therefore, our study aims to investigate the role of UBE2O in HNSCC progression and the underlying mechanisms. Methods The expression of UBE2O in HNSCC patients was investigated with data from the Cancer Genome Atlas (TCGA) and from a separate primary tumor cohort. The function of UBE2O in HNSCC cells was studied by cell viability assay, colony formation assay, wound healing assay, and cell migration and invasion chamber assay. The effect of UBE2O on tumor growth in vivo was determined in a subcutaneous xenograft model of HNSCC. Results TCGA data showed that UBE2O mRNA expression was dramatically increased in HNSCC tissues and that patients with high expression of UBE2O transcripts had a worse survival prognosis than patients with low expression of UBE2O transcripts. Gain-of-function and loss-of-function analyses revealed that oncogenic UBE2O enhanced the proliferation, migration and invasion of HNSCC cells in vitro. Further, mechanistic analysis revealed that UBE2O induced the epithelial-mesenchymal transition (EMT) phenotype and also potentiated TGF-β1-induced EMT, and thus leading to an enhanced capacity of migration and invasion in HNSCC. Finally, xenograft models showed that UBE2O knockout obviously inhibited the occurrence of EMT, angiogenesis and tumor growth in HNSCC in vivo. Conclusion Our study indicates that UBE2O acts as an oncogene to promote the malignant progression and EMT of HNSCC.
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Affiliation(s)
- Xiyu Chen
- Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China.,Otolaryngology Major Disease Research Key Laboratory of Hunan Province, Changsha, Hunan 410008, People's Republic of China.,Clinical Research Center for Pharyngolaryngeal Diseases and Voice Disorders in Hunan Province, Changsha, Hunan 410008, People's Republic of China
| | - Shuiting Zhang
- Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China.,Otolaryngology Major Disease Research Key Laboratory of Hunan Province, Changsha, Hunan 410008, People's Republic of China.,Clinical Research Center for Pharyngolaryngeal Diseases and Voice Disorders in Hunan Province, Changsha, Hunan 410008, People's Republic of China
| | - Chao Liu
- Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China.,Otolaryngology Major Disease Research Key Laboratory of Hunan Province, Changsha, Hunan 410008, People's Republic of China.,Clinical Research Center for Pharyngolaryngeal Diseases and Voice Disorders in Hunan Province, Changsha, Hunan 410008, People's Republic of China
| | - Guo Li
- Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China.,Otolaryngology Major Disease Research Key Laboratory of Hunan Province, Changsha, Hunan 410008, People's Republic of China.,Clinical Research Center for Pharyngolaryngeal Diseases and Voice Disorders in Hunan Province, Changsha, Hunan 410008, People's Republic of China
| | - Shanhong Lu
- Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China.,Otolaryngology Major Disease Research Key Laboratory of Hunan Province, Changsha, Hunan 410008, People's Republic of China.,Clinical Research Center for Pharyngolaryngeal Diseases and Voice Disorders in Hunan Province, Changsha, Hunan 410008, People's Republic of China
| | - Yunyun Wang
- Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China.,Otolaryngology Major Disease Research Key Laboratory of Hunan Province, Changsha, Hunan 410008, People's Republic of China.,Clinical Research Center for Pharyngolaryngeal Diseases and Voice Disorders in Hunan Province, Changsha, Hunan 410008, People's Republic of China
| | - Xin Zhang
- Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China.,Otolaryngology Major Disease Research Key Laboratory of Hunan Province, Changsha, Hunan 410008, People's Republic of China.,Clinical Research Center for Pharyngolaryngeal Diseases and Voice Disorders in Hunan Province, Changsha, Hunan 410008, People's Republic of China
| | - Donghai Huang
- Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China.,Otolaryngology Major Disease Research Key Laboratory of Hunan Province, Changsha, Hunan 410008, People's Republic of China.,Clinical Research Center for Pharyngolaryngeal Diseases and Voice Disorders in Hunan Province, Changsha, Hunan 410008, People's Republic of China
| | - Yuanzheng Qiu
- Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China.,Otolaryngology Major Disease Research Key Laboratory of Hunan Province, Changsha, Hunan 410008, People's Republic of China.,Clinical Research Center for Pharyngolaryngeal Diseases and Voice Disorders in Hunan Province, Changsha, Hunan 410008, People's Republic of China.,National Clinical Research Center for Geriatric Disorders (Xiangya Hospital), Changsha, Hunan 410008, People's Republic of China
| | - Yong Liu
- Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China.,Otolaryngology Major Disease Research Key Laboratory of Hunan Province, Changsha, Hunan 410008, People's Republic of China.,Clinical Research Center for Pharyngolaryngeal Diseases and Voice Disorders in Hunan Province, Changsha, Hunan 410008, People's Republic of China.,National Clinical Research Center for Geriatric Disorders (Xiangya Hospital), Changsha, Hunan 410008, People's Republic of China
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Yin H, Wang X, Zhang X, Zeng Y, Xu Q, Wang W, Zhou F, Zhou Y. UBE2T promotes radiation resistance in non-small cell lung cancer via inducing epithelial-mesenchymal transition and the ubiquitination-mediated FOXO1 degradation. Cancer Lett 2020; 494:121-131. [PMID: 32590022 DOI: 10.1016/j.canlet.2020.06.005] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 06/01/2020] [Accepted: 06/03/2020] [Indexed: 12/18/2022]
Abstract
Radiation resistance affects survival in non-small-cell lung cancer (NSCLC) patients. Further exploration of mechanisms and targets is urgently needed. Using bioinformatic analyses, we found that UBE2T is associated with survival, tumor size, lymph node metastasis and distant metastasis. Then, real-time PCR and immunohistochemistry were performed to explore the differentially expressed genes between normal and NSCLC tissues. Furthermore, we used colony formation, EdU incorporation, scratch, transwell assays, flow cytometry, immunofluorescence and western blot to assess the role of UBE2T in vitro and in vivo. RNA-Seq and coimmunoprecipitation were used to explore the mechanism. The results showed that UBE2T promotes proliferation, migration, invasion, and radiation resistance in vitro and in vivo by accelerating the G2/M transition and inhibiting apoptosis. Mechanistically, UBE2T promotes epithelial-mesenchymal transition (EMT) via ubiquitination-mediated FOXO1 degradation and Wnt/β-catenin signaling pathway activation. Moreover, FOXO1 reversed radiation resistance and EMT. Therefore, UBE2T may be a potential target for enhancing radiotherapy sensitivity and serve as a biomarker to predict prognosis.
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Affiliation(s)
- Hang Yin
- Hubei Key Laboratory of Tumor Biological Behaviors, Zhongnan Hospital of Wuhan University, Wuhan, China; Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan, China; Hubei Cancer Clinical Study Center, Zhongnan Hospital of Wuhan University, Wuchang, Wuhan, China; Department of Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang Province, China
| | - Xiaoyuan Wang
- Department of Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang Province, China
| | - Xue Zhang
- Hubei Key Laboratory of Tumor Biological Behaviors, Zhongnan Hospital of Wuhan University, Wuhan, China; Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan, China; Hubei Cancer Clinical Study Center, Zhongnan Hospital of Wuhan University, Wuchang, Wuhan, China
| | - Yangyang Zeng
- Hubei Key Laboratory of Tumor Biological Behaviors, Zhongnan Hospital of Wuhan University, Wuhan, China; Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan, China; Hubei Cancer Clinical Study Center, Zhongnan Hospital of Wuhan University, Wuchang, Wuhan, China
| | - Qingyong Xu
- Department of Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang Province, China
| | - Wenbo Wang
- Hubei Key Laboratory of Tumor Biological Behaviors, Zhongnan Hospital of Wuhan University, Wuhan, China; Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan, China; Hubei Cancer Clinical Study Center, Zhongnan Hospital of Wuhan University, Wuchang, Wuhan, China.
| | - Fuxiang Zhou
- Hubei Key Laboratory of Tumor Biological Behaviors, Zhongnan Hospital of Wuhan University, Wuhan, China; Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan, China; Hubei Cancer Clinical Study Center, Zhongnan Hospital of Wuhan University, Wuchang, Wuhan, China
| | - Yunfeng Zhou
- Hubei Key Laboratory of Tumor Biological Behaviors, Zhongnan Hospital of Wuhan University, Wuhan, China; Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan, China; Hubei Cancer Clinical Study Center, Zhongnan Hospital of Wuhan University, Wuchang, Wuhan, China.
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Wu ZH, Zhang YJ, Sun HY. High ubiquitin conjugating enzyme E2 T mRNA expression and its prognostic significance in lung adenocarcinoma: A study based on the TCGA database. Medicine (Baltimore) 2020; 99:e18543. [PMID: 31977847 PMCID: PMC7004642 DOI: 10.1097/md.0000000000018543] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Lung adenocarcinoma (LUAD) is the most common subtype of lung cancer with a high mortality disease which has been positioned the first and second cancer morbidity of men and women in China, separately. Our study was to assess the prognostic meaningful of ubiquitin conjugating enzyme E2 T (UBE2T) expression in LUAD dependent on data acquired from The Cancer Genome Atlas (TCGA) and so as to increase further knowledge into the biological pathways involved in LUAD pathogenesis related to UBE2T.Information on gene expression and comparing clinical data were recognized and downloaded from TCGA. Gene set enrichment analysis (GSEA) created an arranged list of all genes s indicated by their connection with UBE2T expression.Our study cohort included 265 (54.5%) female and 221 (36.0%) male patients. The scatter plot and paired plot showed the difference of UBE2T expression between normal and tumor samples (P < .01). Overall survival (OS) analysis demonstrated that LUAD with UBE2T-high had a more terrible prognosis than that with UBE2T-low (P < .01). Multivariate analysis with the cox proportional hazards model indicated that the expression of UBE2T (hazard ratio [HR]: 1.28; 95% Confidence Interval (CI): 1.06-1.56; P = .011) and stage (HR: 2.02; 95% CI: 1.27-3.21; P = .003) were independent prognostic factors for patients with LUAD. The GSEA results showed that cell cycle, DNA replication, RNA degradation, oxidative phosphorylation, pathogenic Escherichia coli infection, citrate cycle tricarboxylic acid cycle, Alzheimer's disease, P53 signaling pathway, and purine metabolism are differentially enriched in UBE2T high expression phenotype.Our study found that the expression of UBE2T was significantly increased in LUAD patients and associated with several clinical features. UBE2T may be a potentially useful prognostic molecular biomarker of bad survival in LUAD, while further experimental ought to be performed to demonstrate the biologic effect of UBE2T.
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Affiliation(s)
- Zeng-Hong Wu
- Department of Otorhinolaryngology, Union Hospital, Tongji Medica College
| | - You-jing Zhang
- School of Public Health, Tongji Medical College, Huazhong University of Science and technology, Wuhan, China
| | - Hai-Ying Sun
- Department of Otorhinolaryngology, Union Hospital, Tongji Medica College
- Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Stanford, CA
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Gâtel P, Piechaczyk M, Bossis G. Ubiquitin, SUMO, and Nedd8 as Therapeutic Targets in Cancer. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1233:29-54. [PMID: 32274752 DOI: 10.1007/978-3-030-38266-7_2] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Ubiquitin defines a family of approximately 20 peptidic posttranslational modifiers collectively called the Ubiquitin-like (UbLs). They are conjugated to thousands of proteins, modifying their function and fate in many ways. Dysregulation of these modifications has been implicated in a variety of pathologies, in particular cancer. Ubiquitin, SUMO (-1 to -3), and Nedd8 are the best-characterized UbLs. They have been involved in the regulation of the activity and/or the stability of diverse components of various oncogenic or tumor suppressor pathways. Moreover, the dysregulation of enzymes responsible for their conjugation/deconjugation has also been associated with tumorigenesis and cancer resistance to therapies. The UbL system therefore constitutes an attractive target for developing novel anticancer therapeutic strategies. Here, we review the roles and dysregulations of Ubiquitin, SUMO, and Nedd8 pathways in tumorigenesis, as well as recent advances in the identification of small molecules targeting their conjugating machineries for potential application in the fight against cancer.
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Affiliation(s)
- Pierre Gâtel
- Equipe Labellisée Ligue Contre le Cancer, IGMM, Univ Montpellier, CNRS, Montpellier, France
| | - Marc Piechaczyk
- Equipe Labellisée Ligue Contre le Cancer, IGMM, Univ Montpellier, CNRS, Montpellier, France
| | - Guillaume Bossis
- Equipe Labellisée Ligue Contre le Cancer, IGMM, Univ Montpellier, CNRS, Montpellier, France.
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Shi X, Wang B, Chen X, Zheng Y, Ding Y, Wang C. Upregulation of ubiquitin-conjugating enzyme E2Z is associated with human hepatocellular carcinoma. Biochem Biophys Res Commun 2019; 523:25-32. [PMID: 31831168 DOI: 10.1016/j.bbrc.2019.11.170] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Accepted: 11/25/2019] [Indexed: 12/24/2022]
Abstract
UBE2Z, a member of ubiquitin-conjugating enzymes, has been reported to participate in multiple biological processes. However, its roles in hepatocellular carcinoma (HCC) remain undiscovered. This study aimed at investigating the functions of UBE2Z in HCC. Firstly, we evaluated UBE2Z expression in HCC and identified associations among UBE2Z expression, clinicopathological features, copy number alterations, DNA methylation, and survival of patients using data from the Cancer Genome Atlas (TCGA). As a result, UBE2Z was remarkably overexpressed in HCC tissues relative to normal liver tissues (P < 0.05). High UBE2Z expression was significantly correlated with age, advanced TNM stage, histological grade, vascular invasion, elevated serum alpha-fetoprotein expression (AFP), worse overall survival (OS) and disease-free survival (DFS) of HCC patients (all P < 0.05). Besides, data mining in UCSC Xena Browser showed that UBE2Z DNA amplification which was significantly associated with its expression was common (108 out of 364) in HCC, and that the level of UBE2Z DNA methylation was negatively associated with its expression (Pearson's correlation = -0.4, P < 0.0001). After analyzing the datasets from TCGA, we further confirmed the up-regulation of UBE2Z in 60 HCC tissues and several HCC cell lines. Finally, functional assays were performed and showed that knockdown UBE2Z using small interfering RNA (siRNA) could significantly restrain tumor cell proliferation and suppress cell migration and cell invasion through repressing the expression of MMP2 and MMP9. Meanwhile, UBE2Z knockdown could effectively reduce the expression of p-ERK, p-p38, p-JNK, p-Stat3 and p-JAK2, suggesting that UBE2Z might promote HCC progression by targeting ERK and stat3 signaling pathway. These findings implied that UBE2Z might be considered as a prognostic biomarker in HCC and provided a potential therapeutic tumor-associated antigen for HCC.
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Affiliation(s)
- Xiaokang Shi
- Department of Hepatobiliary Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China; Department of Pathology and Pathophysiology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, China
| | - Bin Wang
- Department of Hepatobiliary Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Xiaoyan Chen
- Department of Hepatobiliary Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Yuyang Zheng
- Department of Pathology and Pathophysiology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, China
| | - Youming Ding
- Department of Hepatobiliary Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
| | - Changhua Wang
- Department of Pathology and Pathophysiology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, China.
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Guo J, Wang M, Wang JP, Wu CX. Ubiquitin-conjugating enzyme E2T knockdown suppresses hepatocellular tumorigenesis via inducing cell cycle arrest and apoptosis. World J Gastroenterol 2019; 25:6386-6403. [PMID: 31798276 PMCID: PMC6881511 DOI: 10.3748/wjg.v25.i43.6386] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 09/10/2019] [Accepted: 09/13/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is now the most common primary liver malignancy worldwide, and multiple risk factors attribute to the occurrence and development of HCC. Recently, increasing studies suggest that ubiquitin-conjugating enzyme E2T (UBE2T) serves as a promising prognostic factor in human cancers, although the molecular mechanism of UBE2T in HCC remains unclear.
AIM To investigate the clinical relevance and role of UBE2T in HCC development.
METHODS UBE2T expression in HCC tissues from the TCGA database and its association with patient survival were analyzed. A lentivirus-mediated strategy was used to knock down UBE2T in HCC cells. qRT-PCR and Western blot assays were performed to check the effect of UBE2T silencing in HCC cells. Cell growth in vitro and in vivo was analyzed by multiparametric high-content screening and the xenograft tumorigenicity assay, respectively. Cell cycle distribution and apoptosis were determined by flow cytometry. The genes regulated by UBE2T were profiled by microarray assay.
RESULTS UBE2T was overexpressed in HCC tissues compared with paired and non-paired normal tissues. High expression of UBE2T predicted a poor overall survival in HCC patients. In vitro, lentivirus-mediated UBE2T knockdown significantly reduced the viability of both SMMC-7721 and BEL-7404 cells. In vivo, the xenograft tumorigenesis of SMMC-7721 cells was largely attenuated by UBE2T silencing. The cell cycle was arrested at G1/S phase in SMMC-7721 and BEL-7404 cells with UBE2T knockdown. Furthermore, apoptosis was increased by UBE2T knockdown. At the molecular level, numerous genes were dysregulated after UBE2T silencing, including IL-1B, FOSL1, PTGS2, and BMP6.
CONCLUSION UBE2T plays an important role in cell cycle progression, apoptosis, and HCC development.
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Affiliation(s)
- Jian Guo
- Institute of Biotechnology, Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Institute of Biotechnology, Shanxi University, Taiyuan 030006, Shanxi Province, China
- Department of General Surgery, Shanxi Provincial People’s Hospital, the Affiliated People’s Hospital of Shanxi Medical University, Taiyuan 030012, Shanxi Province, China
| | - Mu Wang
- Department of Neurology, Shanxi Provincial People’s Hospital, the Affiliated People’s Hospital of Shanxi Medical University, Taiyuan 030012, Shanxi Province, China
| | - Jun-Ping Wang
- Department of Gastroenterology, Shanxi Provincial People’s Hospital, the Affiliated People’s Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi Province, China
| | - Chang-Xin Wu
- The Institutes of Biomedical Sciences, Shanxi University, Taiyuan 03006, Shanxi Province, China
- Key Laboratory of Molecular Biology and Biochemistry of Ministry of Education, Shanxi University, Taiyuan 030006, Shanxi Province, China
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Liu LL, Zhu JM, Yu XN, Zhu HR, Shi X, Bilegsaikhan E, Guo HY, Wu J, Shen XZ. UBE2T promotes proliferation via G2/M checkpoint in hepatocellular carcinoma. Cancer Manag Res 2019; 11:8359-8370. [PMID: 31571992 PMCID: PMC6750879 DOI: 10.2147/cmar.s202631] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 08/19/2019] [Indexed: 12/15/2022] Open
Abstract
Background Growing evidence suggests that the ubiquitin-proteasome system is involved in the pathogenesis and recurrence of hepatocellular carcinoma (HCC); yet, little is known about the role of ubiquitin-conjugating enzyme E2T (UBE2T) in HCC. Materials and methods UBE2T levels were detected in HCC tissues and hepatoma cell lines using quantitative reserve transcriptase-polymerase chain reaction and Western blot analysis. Next, the changes of phenotypes after UBE2T knockdown or overexpression were evaluated using in vitro methods. Finally, the mechanism of UBE2T in HCC was tested using ex vivo and in vivo methods. Results In the present study, we reported that UBE2T mRNA and protein levels were significantly upregulated in HCC tissues compared to adjacent non-tumor tissues. Additionally, suppression of UBE2T expression inhibited proliferation, colony formation, tumorigenesis, migration, and invasion of hepatoma cells, whereas UBE2T overexpression led to the opposite outcomes. Moreover, suppression of UBE2T expression resulted in an increase in G2/M phase and a decrease in the percentage of cells in G1 phase, which indicated a cell cycle arrest at the G2/M phase. In contrast, the percentage of cells in G2/M phase decreased following UBE2T overexpression. Further study indicated that UBE2T regulated the G2/M transition by modulating cyclin B1 and cyclin-dependent kinase 1. Conclusion Taken together, the findings of the present study uncover biological functions of UBE2T in hepatoma cells, and delineate preliminary molecular mechanisms of UBE2T in modulating HCC development and progression.
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Affiliation(s)
- Li-Li Liu
- Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai 200032, People's Republic of China.,Shanghai Institute of Liver Diseases, Zhongshan Hospital, Shanghai Medical College, Fudan University, Shanghai 200032, People's Republic of China
| | - Ji-Min Zhu
- Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai 200032, People's Republic of China.,Shanghai Institute of Liver Diseases, Zhongshan Hospital, Shanghai Medical College, Fudan University, Shanghai 200032, People's Republic of China
| | - Xiang-Nan Yu
- Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai 200032, People's Republic of China.,Shanghai Institute of Liver Diseases, Zhongshan Hospital, Shanghai Medical College, Fudan University, Shanghai 200032, People's Republic of China
| | - Hai-Rong Zhu
- Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai 200032, People's Republic of China.,Shanghai Institute of Liver Diseases, Zhongshan Hospital, Shanghai Medical College, Fudan University, Shanghai 200032, People's Republic of China
| | - Xuan Shi
- Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai 200032, People's Republic of China.,Shanghai Institute of Liver Diseases, Zhongshan Hospital, Shanghai Medical College, Fudan University, Shanghai 200032, People's Republic of China
| | - Enkhnaran Bilegsaikhan
- Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai 200032, People's Republic of China.,Shanghai Institute of Liver Diseases, Zhongshan Hospital, Shanghai Medical College, Fudan University, Shanghai 200032, People's Republic of China
| | - Hong-Ying Guo
- Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai 200032, People's Republic of China.,Shanghai Institute of Liver Diseases, Zhongshan Hospital, Shanghai Medical College, Fudan University, Shanghai 200032, People's Republic of China
| | - Jian Wu
- Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai 200032, People's Republic of China.,Shanghai Institute of Liver Diseases, Zhongshan Hospital, Shanghai Medical College, Fudan University, Shanghai 200032, People's Republic of China.,Department of Medical Microbiology and Parasitology, Ministry of Education/National Health Commission/Chinese Academy of Medical Sciences, Key Laboratory of Medical Molecular Virology, School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, People's Republic of China
| | - Xi-Zhong Shen
- Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai 200032, People's Republic of China.,Shanghai Institute of Liver Diseases, Zhongshan Hospital, Shanghai Medical College, Fudan University, Shanghai 200032, People's Republic of China.,Department of Medical Microbiology and Parasitology, Ministry of Education/National Health Commission/Chinese Academy of Medical Sciences, Key Laboratory of Medical Molecular Virology, School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, People's Republic of China
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E2 ubiquitin-conjugating enzymes in cancer: Implications for immunotherapeutic interventions. Clin Chim Acta 2019; 498:126-134. [PMID: 31445029 DOI: 10.1016/j.cca.2019.08.020] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 08/18/2019] [Accepted: 08/20/2019] [Indexed: 12/16/2022]
Abstract
Despite the medical advances of the 21st century, the incidence of cancer continues to increase and the search for a universal cure remains a major health challenge. Our lack of understanding the complex pathophysiology of the tumor microenvironment has hindered the development and efficiency of anti-cancer therapeutic strategies. The tumor microenvironment, composed of multiple cellular and non-cellular components, enables tumor-promoting processes such as proliferation, angiogenesis, migration and invasion, metastasis, and drug resistance. The ubiquitin-mediated degradation system is involved in several physiologic processes including cell cycling, signal transduction, receptor downregulation, endocytosis and transcriptional regulation. Ubiquitination includes attachment of ubiquitin to target proteins via E1 (activating), E2 (conjugating) and E3 (ligating) enzymes. Several studies have shown that E2 enzymes are dysregulated in variety of cancers. Multiple investigations have demonstrated the involvement of E2s in various tumor-promoting processes including DNA repair, cell cycle progression, apoptosis and oncogenic signaling. E2 enzymes consist of 40 members that facilitate ubiquitin-substrate conjugation thereby modulating the stability and interaction of various proteins. As such, E2s are potential biomarkers as diagnostic, prognostic and therapeutic tools. In this review, we discuss the role of E2s in modulating various types of cancer.
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40
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Bao Y, Wang L, Shi L, Yun F, Liu X, Chen Y, Chen C, Ren Y, Jia Y. Transcriptome profiling revealed multiple genes and ECM-receptor interaction pathways that may be associated with breast cancer. Cell Mol Biol Lett 2019; 24:38. [PMID: 31182966 PMCID: PMC6554968 DOI: 10.1186/s11658-019-0162-0] [Citation(s) in RCA: 175] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 05/21/2019] [Indexed: 12/13/2022] Open
Abstract
Background Exploration of the genes with abnormal expression during the development of breast cancer is essential to provide a deeper understanding of the mechanisms involved. Transcriptome sequencing and bioinformatics analysis of invasive ductal carcinoma and paracancerous tissues from the same patient were performed to identify the key genes and signaling pathways related to breast cancer development. Methods Samples of breast tumor tissue and paracancerous breast tissue were obtained from 6 patients. Sequencing used the Illumina HiSeq platform. All. Only perfectly matched clean reads were mapped to the reference genome database, further analyzed and annotated based on the reference genome information. Differentially expressed genes (DEGs) were identified using the DESeq R package (1.10.1) and DEGSeq R package (1.12.0). Using KOBAS software to execute the KEGG bioinformatics analyses, enriched signaling pathways of DEGs involved in the occurrence of breast cancer were determined. Subsequently, quantitative real time PCR was used to verify the accuracy of the expression profile of key DEGs from the RNA-seq result and to explore the expression patterns of novel cancer-related genes on 8 different clinical individuals. Results The transcriptomic sequencing results showed 937 DEGs, including 487 upregulated and 450 downregulated genes in the breast cancer specimens. Further quantitative gene expression analysis was performed and captured 252 DEGs (201 downregulated and 51 upregulated) that showed the same differential expression pattern in all libraries. Finally, 6 upregulated DEGs (CST2, DRP2, CLEC5A, SCD, KIAA1211, DTL) and 6 downregulated DEGs (STAC2, BTNL9, CA4, CD300LG, GPIHBP1 and PIGR), were confirmed in a quantitative real time PCR comparison of breast cancer and paracancerous breast tissues from 8 clinical specimens. KEGG analysis revealed various pathway changes, including 20 upregulated and 21 downregulated gene enrichment pathways. The extracellular matrix–receptor (ECM-receptor) interaction pathway was the most enriched pathway: all genes in this pathway were DEGs, including the THBS family, collagen and fibronectin. These DEGs and the ECM-receptor interaction pathway may perform important roles in breast cancer. Conclusion Several potential breast cancer-related genes and pathways were captured, including 7 novel upregulated genes and 76 novel downregulated genes that were not found in other studies. These genes are related to cell proliferation, movement and adhesion. They may be important for research into breast cancer mechanisms, particularly CST2 and CA4. A key signaling pathway, the ECM-receptor interaction signal pathway, was also identified as possibly involved in the development of breast cancer. Electronic supplementary material The online version of this article (10.1186/s11658-019-0162-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yulong Bao
- 1College of Basic Medicine, Inner Mongolia Medical University, Hohhot, Inner Mongolia China.,Tumor Molecular Diagnostic Laboratory, The Inner Mongolia Cancer Hospital, Hohhot, Inner Mongolia China
| | - Li Wang
- 1College of Basic Medicine, Inner Mongolia Medical University, Hohhot, Inner Mongolia China
| | - Lin Shi
- 2Department of Pathology, Inner Mongolia Medical University, Hohhot, Inner Mongolia China
| | - Fen Yun
- 2Department of Pathology, Inner Mongolia Medical University, Hohhot, Inner Mongolia China
| | - Xia Liu
- 2Department of Pathology, Inner Mongolia Medical University, Hohhot, Inner Mongolia China
| | - Yongxia Chen
- Tumor Molecular Diagnostic Laboratory, The Inner Mongolia Cancer Hospital, Hohhot, Inner Mongolia China
| | - Chen Chen
- 2Department of Pathology, Inner Mongolia Medical University, Hohhot, Inner Mongolia China
| | - Yanni Ren
- 2Department of Pathology, Inner Mongolia Medical University, Hohhot, Inner Mongolia China
| | - Yongfeng Jia
- 1College of Basic Medicine, Inner Mongolia Medical University, Hohhot, Inner Mongolia China.,Tumor Molecular Diagnostic Laboratory, The Inner Mongolia Cancer Hospital, Hohhot, Inner Mongolia China
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41
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Hao P, Kang B, Li Y, Hao W, Ma F. UBE2T promotes proliferation and regulates PI3K/Akt signaling in renal cell carcinoma. Mol Med Rep 2019; 20:1212-1220. [PMID: 31173226 PMCID: PMC6625406 DOI: 10.3892/mmr.2019.10322] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 03/25/2019] [Indexed: 02/07/2023] Open
Abstract
Renal cell carcinoma (RCC) is a common malignant tumor globally. The overall survival of patients with RCC is poor; one important factor is tumor heterogeneity. Ubiquitin-conjugating enzyme E2T (UBE2T) has been reported to act as an oncogene in various types of cancer; however, its role in RCC has yet to be investigated. In the present study, UBE2T was demonstrated via reverse transcription-quantitative PCR analysis to be significantly upregulated in RCC samples and cell lines compared with in normal tissue and cells. Additionally, UBE2T expression was significantly associated with late tumor stage and high grade in patients with RCC, and patients with high UBE2T expression exhibited poor prognosis compared with patients with low expression. Following knockdown of UBE2T in 786-O cells using RNA interference technology, the proliferation and colony formation of cells were inhibited as determined by an MTT assay and crystal violet staining, respectively; however, the migration and invasion of 786-O cells were not affected, as determined by wound-healing assay and Transwell assays, respectively. Xenograft RCC tumor growth in vivo was also significantly suppressed. The expression levels of two mesenchymal cell markers, N-cadherin and vimentin, were reduced following UBE2T knockdown, whereas E-cadherin and fibronectin levels were increased as determined by western blotting, indicating that epithelial-mesenchymal transition was suppressed. In addition, the phosphorylation levels of PI3K, Akt and mTOR were notably decreased following UBE2T knockdown, but were increased when UBE2T was overexpressed. Wortmannin, an Akt inhibitor, reversed the UBE2T overexpression-induced increase in the phosphorylation of PI3K, Akt and mTOR. Similarly, the UBE2T overexpression-induced promotion of 786-O cell proliferation was also attenuated by wortmannin. In conclusion, UBE2T promoted the proliferation of RCC cells by regulating PI3K/Akt signaling, suggesting it may be a novel target for the treatment of patients with RCC.
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Affiliation(s)
- Peng Hao
- Department of Urology Surgery, First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang 154003, P.R. China
| | - Bo Kang
- Department of Central Sterile Supply, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Yapeng Li
- Department of Medical Record, First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang 154003, P.R. China
| | - Wenqi Hao
- Distinguished Physician Class, First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang 154003, P.R. China
| | - Feihong Ma
- Department of Interventional Radiology, First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang 154003, P.R. China
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Zhang W, Zhang Y, Yang Z, Liu X, Yang P, Wang J, Hu K, He X, Zhang X, Jing H. High expression of UBE2T predicts poor prognosis and survival in multiple myeloma. Cancer Gene Ther 2019; 26:347-355. [PMID: 30622320 PMCID: PMC6892417 DOI: 10.1038/s41417-018-0070-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Revised: 11/13/2018] [Accepted: 11/24/2018] [Indexed: 12/21/2022]
Abstract
Multiple myeloma (MM) is one of hematological malignancies, characterized by malignant proliferation of plasma cells. Biomarkers play an important role in evaluating the development and prognosis of MM. Ubiquitin-conjugating enzyme E2T (UBE2T) is served to connect with particular E3 ubiquitin ligase to degraded-related substrates, contributing to DNA repair in the Fanconi anemia pathway. Also, numerous evidences reported that UBE2T is closely related to cell proliferation and carcinogenesis. However, the relationship between MM and UBE2T has not been studied. Here, we integrated eight datasets and analyzed the relationship of expression of UBE2T and ISS, 1q21, relapse and survival in MM 2684 patients (totally 2893 samples). We found that the expression of UBE2T increased with the deterioration of MM (P = 1.4e-07), especially in the early stage. UBE2T is closely related to IgG serotype MM (P = 6.9e-05). High expression of UBE2T is associated with poor survival and prognosis (EFS: P = 1.43e-03, OS: P = 5.47e-05). UBE2T is likely to play a part in the cell division pathway, affecting the survival and prognosis of MM. Therefore, UBE2T could be considered as an early alternative biomarker for the prognosis of MM.
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Affiliation(s)
- Weilong Zhang
- Department of Hematology, Lymphoma Research Center, Peking University Third Hospital, 100191, Beijing, China
| | - Ye Zhang
- Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Zuozhen Yang
- Department of Hematology, Lymphoma Research Center, Peking University Third Hospital, 100191, Beijing, China
| | - Xiaoni Liu
- Department of Respiratory Medicine, The First Affiliated Hospital of Gannan Medical University, 341000, Ganzhou, China
| | - Ping Yang
- Department of Hematology, Lymphoma Research Center, Peking University Third Hospital, 100191, Beijing, China
| | - Jing Wang
- Department of Hematology, Lymphoma Research Center, Peking University Third Hospital, 100191, Beijing, China
| | - Kai Hu
- Department of Hematology, Lymphoma Research Center, Peking University Third Hospital, 100191, Beijing, China
| | - Xue He
- Department of Pathology, Beijing Tiantan Hospital Affiliated with Capital Medical University, No. 6 Tiantan Xili, 100050, Beijing, China.
| | - Xiuru Zhang
- Department of Pathology, Beijing Tiantan Hospital Affiliated with Capital Medical University, No. 6 Tiantan Xili, 100050, Beijing, China.
| | - Hongmei Jing
- Department of Hematology, Lymphoma Research Center, Peking University Third Hospital, 100191, Beijing, China.
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43
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Pan YH, Yang M, Liu LP, Wu DC, Li MY, Su SG. UBE2S enhances the ubiquitination of p53 and exerts oncogenic activities in hepatocellular carcinoma. Biochem Biophys Res Commun 2018; 503:895-902. [PMID: 29928880 DOI: 10.1016/j.bbrc.2018.06.093] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2018] [Accepted: 06/18/2018] [Indexed: 12/18/2022]
Abstract
Ubiquitin-conjugating enzyme E2S (UBE2S) plays pivotal roles in the progression of human cancers. However, its clinical significance and role in hepatocellular carcinoma (HCC) remain unknown. Here, we show that UBE2S is upregulated in HCC and exhibits oncogenic activities via enhancing the ubiquitination of p53. Increased expression of UBE2S was significantly correlated with higher serum AFP level, higher pathological grade, advanced TNM stage, larger tumor size, vascular invasion and unfavorable patient survivals in two independent cohorts containing a total of 845 patients with HCC. Multivariate analyses by cox regression model suggested UBE2S as an independent factor for overall survival. In vitro experiments demonstrated that UBE2S overexpression promoted, whereas UBE2S knockdown suppressed cell proliferation and migration via modulation of p53 signaling pathway. Ectopic expression of UBE2S upregulated the expression of p53 and its downstream effectors, such as p21 and Cyclin D1. Mechanistically, UBE2S enhanced the ubiquitination of p53 protein to facilitate its degradation in HCC cells. Re-expression of p53 partially attenuated the UBE2S-promoted malignant phenotypes. Collectively, our study provides compelling evidence that UBE2S is a potential prognostic factor and functions as an oncogene in HCC.
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Affiliation(s)
- Ying-Hua Pan
- Department of Rheumatology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Mei Yang
- Department of Gastroenterology, Dongguan Third People's Hospital, Dongguan, China
| | - Li-Ping Liu
- Department of Hepatobiliary and Pancreatic Surgery, Shenzhen People's Hospital, Second Clinical Medical College of Jinan University, Shenzhen, Guangdong Province, China
| | - Dan-Chun Wu
- Department of Rheumatology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Ming-Yue Li
- Department of Hepatobiliary and Pancreatic Surgery, Shenzhen People's Hospital, Second Clinical Medical College of Jinan University, Shenzhen, Guangdong Province, China
| | - Shu-Guang Su
- Department of Pathology, The Affiliated Hexian Memorial Hospital of Southern Medical University, Guangzhou, China.
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Juarez-Flores A, José MV. Multivariate Entropy Characterizes the Gene Expression and Protein-Protein Networks in Four Types of Cancer. ENTROPY 2018; 20:e20030154. [PMID: 33265245 PMCID: PMC7844632 DOI: 10.3390/e20030154] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 01/31/2018] [Accepted: 02/23/2018] [Indexed: 12/12/2022]
Abstract
There is an important urgency to detect cancer at early stages to treat it, to improve the patients’ lifespans, and even to cure it. In this work, we determined the entropic contributions of genes in cancer networks. We detected sudden changes in entropy values in melanoma, hepatocellular carcinoma, pancreatic cancer, and squamous lung cell carcinoma associated to transitions from healthy controls to cancer. We also identified the most relevant genes involved in carcinogenic process of the four types of cancer with the help of entropic changes in local networks. Their corresponding proteins could be used as potential targets for treatments and as biomarkers of cancer.
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Affiliation(s)
- Angel Juarez-Flores
- Posgrado en Ciencias Biológicas, Unidad de Posgrado, Circuito de Posgrados, Ciudad Universitaria, Universidad Nacional Autónoma de México, CP 04510, Mexico City, Mexico
- Theoretical Biology Group, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, CP 04510, Mexico City, Mexico
| | - Marco V. José
- Theoretical Biology Group, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, CP 04510, Mexico City, Mexico
- Correspondence:
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Ubiquitin-conjugating enzyme E2T (UBE2T) and denticleless protein homolog (DTL) are linked to poor outcome in breast and lung cancers. Sci Rep 2017; 7:17530. [PMID: 29235520 PMCID: PMC5727519 DOI: 10.1038/s41598-017-17836-7] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 11/27/2017] [Indexed: 12/13/2022] Open
Abstract
Protein ubiquitination and degradation represent druggable vulnerabilities of cancer cells. We used gene expression and functional annotation analyses to identify genes in the ubiquitin pathway which are differentially expressed between normal breast and basal-like tumors. With this approach we identified 16 ubiquitin related genes overexpressed in basal-like breast cancers compared with normal breast. We then explored the association between these genes and outcomes using the KMPlotter online tool. Two genes, the ubiquitin-conjugating enzyme E2T (UBE2T) and the denticleless protein homolog (DTL) were overexpressed and linked with detrimental outcome in basal-like and luminal breast cancer patients. Furthermore, we found that UBE2T and DTL were amplified in around 12% of breast tumors based on data contained at cBioportal. In non-small cell lung adenocarcinomas, UBE2T and DTL were also amplified in around 7% of cases and linked with disease recurrence after surgical resection. No significant molecular alterations or a clear trend for clinical outcome was observed for these genes in ovarian serous cystadenocarcinoma, esophagus-stomach cancer or non-small squamous cell carcinoma. Our data suggest that UBE2T and DTL may have a role in the pathophysiology of breast and lung tumors, opening avenues for future clinical evaluation of agents targeting those proteins or their pathways.
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Liu LP, Yang M, Peng QZ, Li MY, Zhang YS, Guo YH, Chen Y, Bao SY. UBE2T promotes hepatocellular carcinoma cell growth via ubiquitination of p53. Biochem Biophys Res Commun 2017; 493:20-27. [PMID: 28935368 DOI: 10.1016/j.bbrc.2017.09.091] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Accepted: 09/16/2017] [Indexed: 12/13/2022]
Abstract
Deregulation of Ubiquitin-conjugating enzyme E2T (UBE2T) contributes to the progression of human cancers. However, its clinical significance and role in hepatocellular carcinoma (HCC) remain unclear. Here, we show that UBE2T is up-regulated in HCC and exerts oncogenic activities via ubiquitination of p53. High UBE2T expression was correlated with higher pathological grade, advanced TNM stage, tumor vascular invasion, and poor overall and disease-free survivals in two independent cohorts containing 827 patients with HCC. UBE2T was further identified as an independent factor for overall survival by multivariate analyses. Luciferase reporter assays confirmed that UBE2T was directly targeted by miR-543 which was down-regulated in HCC. In vitro experiments demonstrated that UBE2T overexpression promoted, whereas UBE2T knockdown inhibited HCC cell growth. Ectopic expression of UBE2T resulted in the decreases of p53, p21 and Noxa. Further studies revealed that UBE2T facilitated the degradation of p53 protein via enhancing its ubiquitination. Collectively, our findings suggest UBE2T serves as a promising prognostic factor for HCC and functions as an oncogene. The newly identified miR-543/UBE2T/p53 axis may represent a new potential therapeutic target for HCC intervention.
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Affiliation(s)
- Li-Ping Liu
- Department of Hepatobiliary and Pancreas Surgery, Second Clinical Medical College of Jinan University, Shenzhen People's Hospital, Shenzhen, Guangdong Province, China
| | - Mei Yang
- Department of Gastroenterology, Dongguan Third People's Hospital, Dongguan, China
| | - Quan-Zhou Peng
- Department of Pathology, Second Clinical Medical College of Jinan University, Shenzhen People's Hospital, Shenzhen, Guangdong Province, China
| | - Ming-Yue Li
- Department of Hepatobiliary and Pancreas Surgery, Second Clinical Medical College of Jinan University, Shenzhen People's Hospital, Shenzhen, Guangdong Province, China
| | - Yu-Sen Zhang
- Department of Hepatobiliary and Pancreas Surgery, Second Clinical Medical College of Jinan University, Shenzhen People's Hospital, Shenzhen, Guangdong Province, China
| | - Yue-Hua Guo
- Department of Hepatobiliary and Pancreas Surgery, Second Clinical Medical College of Jinan University, Shenzhen People's Hospital, Shenzhen, Guangdong Province, China
| | - Yang Chen
- Department of Hepatobiliary and Pancreas Surgery, Second Clinical Medical College of Jinan University, Shenzhen People's Hospital, Shenzhen, Guangdong Province, China
| | - Shi-Yun Bao
- Department of Hepatobiliary and Pancreas Surgery, Second Clinical Medical College of Jinan University, Shenzhen People's Hospital, Shenzhen, Guangdong Province, China.
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