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Wang H, Chen W, Wang Y, Gao Y, Zhang Z, Mi S, Wang L, Xue M. SUB1 promotes colorectal cancer metastasis by activating NF-κB signaling via UBR5-mediated ubiquitination of UBXN1. SCIENCE CHINA. LIFE SCIENCES 2024; 67:1199-1211. [PMID: 38240906 DOI: 10.1007/s11427-023-2429-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 07/19/2023] [Indexed: 06/07/2024]
Abstract
Metastasis accounts for the major cause of colorectal cancer (CRC) related mortality due to the lack of effective treatments. In this study, we integrated the single-cell RNA-seq (scRNA-seq) and bulk RNA-seq data and identified the transcriptional coactivator SUB1 homolog (Sac-Saccharomyces cerevisiae)/PC4 (positive cofactor 4) associated with CRC metastasis. Elevated SUB1 expression was correlated with advanced tumor stage and poor survival in CRC. In vivo and vitro assays showed that SUB1 depletion could inhibit the invasive and metastatic abilities of CRC cells. SUB1 activated NF-κB signaling and its transcriptional target genes CXCL1 and CXCL3 to drive CRC metastasis. Mechanistically, SUB1 integrated with the E3 ubiquitin-protein ligase UBR5 and increased its protein level in CRC cells. Subsequently, the increased UBR5 mainly mediated Lys11-linked polyubiquitination and degradation of NF-κB negative regulator UBXN1, thus to activate the NF-κB signaling. Overall, our study demonstrated that SUB1 promoted CRC progression by modulating UBR5/UBXN1 and activating NF-κB signaling, providing a new therapeutic strategy for treating metastatic CRC through targeting SUB1.
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Affiliation(s)
- Hao Wang
- Department of Gastroenterology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, 310009, China
- Institution of Gastroenterology, Zhejiang University, Hangzhou, 310058, China
| | - Wenwen Chen
- Department of Gastroenterology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, 310009, China
- Institution of Gastroenterology, Zhejiang University, Hangzhou, 310058, China
| | - Yanting Wang
- Department of Gastroenterology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, 310009, China
- Institution of Gastroenterology, Zhejiang University, Hangzhou, 310058, China
| | - Yuzhen Gao
- Department of Clinical Laboratory, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Zizhen Zhang
- Department of Gastrointestinal Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital and Institute, Beijing, 100142, China
| | - Shuyi Mi
- Department of Gastroenterology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, 310009, China
- Institution of Gastroenterology, Zhejiang University, Hangzhou, 310058, China
| | - Liangjing Wang
- Department of Gastroenterology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, 310009, China.
- Institution of Gastroenterology, Zhejiang University, Hangzhou, 310058, China.
| | - Meng Xue
- Department of Gastroenterology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, 310009, China.
- Institution of Gastroenterology, Zhejiang University, Hangzhou, 310058, China.
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Qin R, Fan X, Ding R, Qiu Y, Chen X, Liu Y, Lin M, Wang H. Research advancements on the involvement of E3 ubiquitin ligase UBR5 in gastrointestinal cancers. Heliyon 2024; 10:e30284. [PMID: 38707379 PMCID: PMC11066684 DOI: 10.1016/j.heliyon.2024.e30284] [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: 09/24/2023] [Revised: 04/18/2024] [Accepted: 04/23/2024] [Indexed: 05/07/2024] Open
Abstract
E3 ubiquitin ligases comprise a family of ubiquitination-catalyzing enzymes that have been extensively researched and are considered crucial components of the ubiquitin-proteasome system involved in various diseases. The ubiquitin-protein ligase E3 component n-recognition 5 (UBR5) is an E3 ubiquitin-protein ligase that has garnered considerable interest of late. Recent studies demonstrate that UBR5 undergoes high-frequency mutations, chromosomal amplification, and/or abnormalities during expression of various malignant tumors. These alterations correlate with the biological behaviors and prognoses of malignancies, such as tumor invasion, metastasis, and resistance to chemotherapeutic agents. This study aimed to comprehensively elucidate the biological functions of UBR5, and its role and relevance in the context of gastrointestinal cancers. Furthermore, this article expounds a scientific basis to explore the molecular mechanisms underlying gastrointestinal cancers and developing targeted therapeutic strategies for their remediation.
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Affiliation(s)
- Rong Qin
- Department of Gastroenterology, Yan'an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, 650051, China
- Key Laboratory of Tumor Immunological Prevention and Treatment of Yunnan Province, Kunming, 650051, China
| | - Xirui Fan
- Department of Gastroenterology, Yan'an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, 650051, China
- Key Laboratory of Tumor Immunological Prevention and Treatment of Yunnan Province, Kunming, 650051, China
| | - Rui Ding
- Department of Gastroenterology, Yan'an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, 650051, China
- Key Laboratory of Tumor Immunological Prevention and Treatment of Yunnan Province, Kunming, 650051, China
| | - Yadan Qiu
- Department of Gastroenterology, Yan'an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, 650051, China
- Key Laboratory of Tumor Immunological Prevention and Treatment of Yunnan Province, Kunming, 650051, China
| | - Xujia Chen
- Department of Gastroenterology, Yan'an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, 650051, China
- Key Laboratory of Tumor Immunological Prevention and Treatment of Yunnan Province, Kunming, 650051, China
| | - Yanting Liu
- Department of Gastroenterology, Yan'an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, 650051, China
- Key Laboratory of Tumor Immunological Prevention and Treatment of Yunnan Province, Kunming, 650051, China
| | - Minjuan Lin
- Department of Gastroenterology, Yan'an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, 650051, China
- Key Laboratory of Tumor Immunological Prevention and Treatment of Yunnan Province, Kunming, 650051, China
| | - Hui Wang
- Department of Gastroenterology, Yan'an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, 650051, China
- Key Laboratory of Tumor Immunological Prevention and Treatment of Yunnan Province, Kunming, 650051, China
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Hu B, Chen S. The role of UBR5 in tumor proliferation and oncotherapy. Gene 2024; 906:148258. [PMID: 38331119 DOI: 10.1016/j.gene.2024.148258] [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: 12/16/2023] [Revised: 01/29/2024] [Accepted: 02/05/2024] [Indexed: 02/10/2024]
Abstract
Ubiquitin (Ub) protein ligase E3 component n-recognin 5 (UBR5), as a crucial Ub ligase, plays a pivotal role in the field of cell biology, attracting significant attention for its functions in regulating protein degradation and signaling pathways. This review delves into the fundamental characteristics and structure of UBR5. UBR5, through ubiquitination, regulates various key proteins, directly or indirectly participating in cell cycle control, thereby exerting a direct impact on the proliferation of tumor cells. Meanwhile, we comprehensively review the expression levels of UBR5 in different types of tumors and its relationship with tumor development, providing key clues for the role of UBR5 in cancer. Furthermore, we summarize the current research status of UBR5 in cancer treatment. Through literature review, we find that UBR5 may play a crucial role in the sensitivity of tumor cells to radiotherapy chemotherapy, and other anti-tumor treatment, providing new insights for optimizing cancer treatment strategies. Finally, we discuss the challenges faced by UBR5 in cancer treatment, and looks forward to the future research directions. With the continuous breakthroughs in technology and in-depth research, we hope to further study the biological functions of UBR5 and lay the foundation for its anti-tumor treatment.
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Affiliation(s)
- Bin Hu
- Department of Geriatrics, Beilun District People's Hospital, Ningbo 315800, China
| | - Shiyuan Chen
- Department of Geriatrics, Beilun District People's Hospital, Ningbo 315800, China.
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Liu Y, Edrisi M, Yan Z, A Ogilvie H, Nakhleh L. NestedBD: Bayesian inference of phylogenetic trees from single-cell copy number profiles under a birth-death model. Algorithms Mol Biol 2024; 19:18. [PMID: 38685065 PMCID: PMC11059640 DOI: 10.1186/s13015-024-00264-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Accepted: 03/27/2024] [Indexed: 05/02/2024] Open
Abstract
Copy number aberrations (CNAs) are ubiquitous in many types of cancer. Inferring CNAs from cancer genomic data could help shed light on the initiation, progression, and potential treatment of cancer. While such data have traditionally been available via "bulk sequencing," the more recently introduced techniques for single-cell DNA sequencing (scDNAseq) provide the type of data that makes CNA inference possible at the single-cell resolution. We introduce a new birth-death evolutionary model of CNAs and a Bayesian method, NestedBD, for the inference of evolutionary trees (topologies and branch lengths with relative mutation rates) from single-cell data. We evaluated NestedBD's performance using simulated data sets, benchmarking its accuracy against traditional phylogenetic tools as well as state-of-the-art methods. The results show that NestedBD infers more accurate topologies and branch lengths, and that the birth-death model can improve the accuracy of copy number estimation. And when applied to biological data sets, NestedBD infers plausible evolutionary histories of two colorectal cancer samples. NestedBD is available at https://github.com/Androstane/NestedBD .
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Affiliation(s)
- Yushu Liu
- Department of Computer Science, Rice University, 6100 Main St, Houston, 77005, TX, USA.
| | - Mohammadamin Edrisi
- Department of Computer Science, Rice University, 6100 Main St, Houston, 77005, TX, USA
| | - Zhi Yan
- Department of Computer Science, Rice University, 6100 Main St, Houston, 77005, TX, USA
| | - Huw A Ogilvie
- Department of Genetics, University of Texas MD Anderson Cancer Center, TX, 77030, Houston, USA
| | - Luay Nakhleh
- Department of Computer Science, Rice University, 6100 Main St, Houston, 77005, TX, USA
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Qin R, Huang Y, Yao Y, Wang L, Zhang Z, Huang W, Su Y, Zhang Y, Guan A, Wang H. The role and molecular mechanism of metabolic reprogramming of colorectal cancer by UBR5 through PYK2 regulation of OXPHOS expression study. J Biochem Mol Toxicol 2023; 37:e23376. [PMID: 37098808 DOI: 10.1002/jbt.23376] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 02/21/2023] [Accepted: 04/14/2023] [Indexed: 04/27/2023]
Abstract
Colorectal carcinoma (CRC) is the third most malignant tumor in the world, but the key mechanisms of CRC progression have not been confirmed. UBR5 and PYK2 expression levels were detected by RT-qPCR. The levels of UBR5, PYK2, and mitochondrial oxidative phosphorylation (OXPHOS) complexes were detected by western blot analysis. Flow cytometry was used to detect ROS activity. The CCK-8 assay was used to assess cell proliferation and viability. The interaction between UBR5 and PYK2 was detected by immunoprecipitation. A clone formation assay was used to determine the cell clone formation rate. The ATP level and lactate production of each group of cells were detected by the kit. EdU staining was performed for cell proliferation.Transwell assay was performed for cell migration ability. For the CRC nude mouse model, we also observed and recorded the volume and mass of tumor-forming tumors. The expression of UBR5 and PYK2 was elevated in both CRC and human colonic mucosal epithelial cell lines, and knockdown of UBR5 had inhibitory effects on cancer cell proliferation and cloning and other behaviors in the CRC process by knockdown of UBR5 to downregulate the expression of PYK2, thus inhibiting the OXPHOS process in CRC; rotenone (OXPHOS inhibitor) treatment enhanced all these inhibitory effects. Knockdown of UBR5 can reduce the expression level of PYK2, thus downregulating the OXPHOS process in CRC cell lines and inhibiting the CRC metabolic reprogramming process.
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Affiliation(s)
- Rong Qin
- Department of Gastroenterology, Yan'an Hospital Affiliated to Kunming Medical University, Kunming City, Yunnan, China
| | - Yun Huang
- Department of Gastroenterology, Yan'an Hospital Affiliated to Kunming Medical University, Kunming City, Yunnan, China
- Key Laboratory of Tumor Immunological Prevention and Treatment of Yunnan Province, Kunming City, Yunnan, China
| | - Ying Yao
- Department of Gastroenterology, Yan'an Hospital Affiliated to Kunming Medical University, Kunming City, Yunnan, China
| | - Likun Wang
- Department of Gastroenterology, Yan'an Hospital Affiliated to Kunming Medical University, Kunming City, Yunnan, China
| | - Zhibo Zhang
- Department of Gastroenterology, Yan'an Hospital Affiliated to Kunming Medical University, Kunming City, Yunnan, China
| | - Weikang Huang
- Department of Gastroenterology, Yan'an Hospital Affiliated to Kunming Medical University, Kunming City, Yunnan, China
| | - Yu Su
- Department of Gastroenterology, Yan'an Hospital Affiliated to Kunming Medical University, Kunming City, Yunnan, China
| | - Yulu Zhang
- Department of Gastroenterology, Yan'an Hospital Affiliated to Kunming Medical University, Kunming City, Yunnan, China
| | - Aoran Guan
- Department of Gastroenterology, Yan'an Hospital Affiliated to Kunming Medical University, Kunming City, Yunnan, China
| | - Hui Wang
- Department of Gastroenterology, Yan'an Hospital Affiliated to Kunming Medical University, Kunming City, Yunnan, China
- Key Laboratory of Tumor Immunological Prevention and Treatment of Yunnan Province, Kunming City, Yunnan, China
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6
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Sun A, Chen Y, Tian X, Lin Q. The Role of HECT E3 Ubiquitin Ligases in Colorectal Cancer. Biomedicines 2023; 11:biomedicines11020478. [PMID: 36831013 PMCID: PMC9953483 DOI: 10.3390/biomedicines11020478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/31/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023] Open
Abstract
Colorectal cancer (CRC) is estimated to rank as the second reason for cancer-related deaths, and the prognosis of CRC patients remains unsatisfactory. Numerous studies on gastrointestinal cell biology have shown that the E3 ligase-mediated ubiquitination exerts key functions in the pathogenesis of CRC. The homologous to E6-associated protein C-terminus (HECT) family E3 ligases are a major group of E3 enzymes, featured with the presence of a catalytic HECT domain, which participate in multiple cellular processes; thus, alterations in HECT E3 ligases in function or expression are closely related to the occurrence and development of many human malignancies, including-but not limited to-CRC. In this review, we summarize the potential role of HECT E3 ligases in colorectal carcinogenesis and the related underlying molecular mechanism to expand our understanding of their pathological functions. Exploiting specific inhibitors targeting HECT E3 ligases could be a potential therapeutic strategy for CRC therapy in the future.
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7
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Wu Q, Liu L, Feng Y, Wang L, Liu X, Li Y. UBR5 promotes migration and invasion of glioma cells by regulating the ECRG4/NF-κB pathway. J Biosci 2022. [DOI: 10.1007/s12038-022-00280-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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8
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Deepak Singh D, Han I, Choi EH, Yadav DK. CRISPR/Cas9 based genome editing for targeted transcriptional control in triple-negative breast cancer. Comput Struct Biotechnol J 2021; 19:2384-2397. [PMID: 34025931 PMCID: PMC8120801 DOI: 10.1016/j.csbj.2021.04.036] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 04/13/2021] [Accepted: 04/16/2021] [Indexed: 02/07/2023] Open
Abstract
Breast cancer (BC) is the most common type of cancer in women at the global level and the highest mortality rate has been observed with triple-negative breast cancer (TNBC). Accumulation of genetic lesions an aberrant gene expression and protein degradation are considered to underlie the onset of tumorigenesis and metastasis. Therefore, the challenge to identify the genes and molecules that could be potentially used as potent biomarkers for personalized medicine against TNBC with minimal or no associated side effects. Discovery of the clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR associated protein 9 (Cas9) arrangement and an increasing repertoire of its new variants has provided a much-needed fillip towards editing TNBC genomes. In this review, we discuss the CRISPR/Cas9 genome editing, CRISPR Technology for diagnosis of (Triple-negative breast cancer) TNBC, Drug Resistance, and potential applications of CRISPR/Cas9 and its variants in deciphering or engineering intricate molecular and epigenetic mechanisms associated with TNBC. Furthermore, we have also explored the TNBC and CRISPR/Cas9 genome editing potential for repairing, genetic modifications in TNBC.
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Affiliation(s)
- Desh Deepak Singh
- Amity Institute of Biotechnology, Amity University Rajasthan, Jaipur, India
| | - Ihn Han
- Plasma Bioscience Research Center, Applied Plasma Medicine Center, Department of Electrical & Biological Physics, Kwangwoon University, Seoul, Republic of Korea
| | - Eun-Ha Choi
- Plasma Bioscience Research Center, Applied Plasma Medicine Center, Department of Electrical & Biological Physics, Kwangwoon University, Seoul, Republic of Korea
| | - Dharmendra Kumar Yadav
- College of Pharmacy, Gachon University of Medicine and Science, Hambakmoeiro 191, Yeonsu-gu, Incheon City, Republic of Korea
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Wang C, Hong T, Wang Y, Peng G, Yu Y, Zhang J, Zhuo D, Zheng J, Ma X, Cui X. Combining UBR5 and CD163 + tumor-associated macrophages better predicts prognosis of clear cell renal cell carcinoma patients. Cancer Immunol Immunother 2021; 70:2925-2935. [PMID: 33710368 DOI: 10.1007/s00262-021-02885-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 02/03/2021] [Indexed: 01/23/2023]
Abstract
PURPOSE Identification of reliable postoperative indicators for accurately evaluating prognosis of clear cell renal cell carcinoma (ccRCC) patients remains an important clinical issue. This study determined the prognostic value of UBR5 expression in ccRCC patients by combining with CD163+ tumor-associated macrophages (TAMs) and the established clinical parameters. METHODS The expression of UBR5 was analyzed in ccRCC patients from TCGA databases. A total of 310 ccRCC patients were randomly divided into the training and validation cohorts at a 3:2 or 1:1 ratio, and immunohistochemistry (IHC) and statistical analyses were performed to examine the prognostic value of UBR5 and CD163+ TAMs. RESULTS UBR5 expression was commonly downregulated in human ccRCC specimens, which was associated with TNM stage, SSIGN, WHO/ISUP Grading and poor prognosis of ccRCC patients. In addition, UBR5 expression was negatively correlated with CD163 expression (a TAM marker) in ccRCC tissues, and combining expressions of UBR5 and CD163 better predicted worse overall survival and progression-free survival of ccRCC patients. Even after multivariable adjustment, UBR5, CD163, TNM stage and SSIGN appeared to be independent risk factors. By time-dependent c-index analysis, the integration of intratumoral UBR5 and CD163 achieved higher c-index value than UBR5, CD163, TNM stage or SSIGN alone in predicting ccRCC patients' prognosis. Moreover, the incorporation of both UBR5 and CD163 into the clinical indicators TNM stage or SSIGN exhibited highest c-index value. CONCLUSIONS Integrating intratumoral UBR5 and CD163+ TAMs with the current clinical parameters achieves better accuracy in predicting ccRCC patients' postoperative prognosis.
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Affiliation(s)
- Chao Wang
- Department of Urinary Surgery, Gongli Hospital, The Second Military Medical University (Naval Medical University), 219 Miaopu Road, Shanghai, 200135, China
- Shanghai Heath Commission Key Lab of Artificial Intelligence (AI)-Based Management of Inflammation and Chronic Diseases, Gongli Hospital, The Second Military Medical University (Naval Medical University), 219 Miaopu Road, Shanghai, 200135, China
- Department of Urology, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, 29 Xinglong Road, Changzhou, 213000, Jiangsu, China
| | - TianYu Hong
- Department of Urinary Surgery, Gongli Hospital, The Second Military Medical University (Naval Medical University), 219 Miaopu Road, Shanghai, 200135, China
| | - Yuning Wang
- Department of Urinary Surgery, Gongli Hospital, The Second Military Medical University (Naval Medical University), 219 Miaopu Road, Shanghai, 200135, China
| | - Guang Peng
- Department of Urinary Surgery, The Third Affiliated Hospital of Second Military Medical University (Eastern Hepatobiliary Surgery Hospital), 700 North Moyu Road, Shanghai, 201805, China
- Department of Urology, Joint Logistic Support Force No. 925 Hospital of PLA, 67 Yellow River Road, Guiyang, 550009, Guizhou, China
- Department of Orthopedic, Joint Logistic Support Force No. 925 Hospital of PLA, 67 Yellow River Road, Guiyang, 550009, Guizhou, China
| | - Yongwei Yu
- Department of Pathology, Changhai Hospital, Second Military Medical University (Naval Medical University), 168 Changhai Road, Shanghai, 200438, China
| | - Jing Zhang
- Department of Urinary Surgery, Gongli Hospital, The Second Military Medical University (Naval Medical University), 219 Miaopu Road, Shanghai, 200135, China
| | - Dong Zhuo
- Department of Microbiology and Immunology, Weill Medical College of Cornell University, 1300 York Avenue, New York, NY, 10065-4805, USA.
| | - Jingcun Zheng
- Department of Urinary Surgery, Gongli Hospital, The Second Military Medical University (Naval Medical University), 219 Miaopu Road, Shanghai, 200135, China.
| | - Xiaojing Ma
- Department of Urology, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College), No. 2 West Zheshan RD, Wuhu, Anhui, 241000, China.
| | - Xingang Cui
- Department of Urinary Surgery, Gongli Hospital, The Second Military Medical University (Naval Medical University), 219 Miaopu Road, Shanghai, 200135, China.
- Department of Urinary Surgery, The Third Affiliated Hospital of Second Military Medical University (Eastern Hepatobiliary Surgery Hospital), 700 North Moyu Road, Shanghai, 201805, China.
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10
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The E3 ubiquitin ligase UBR5 interacts with TTC7A and may be associated with very early onset inflammatory bowel disease. Sci Rep 2020; 10:18648. [PMID: 33122718 PMCID: PMC7596066 DOI: 10.1038/s41598-020-73482-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 09/17/2020] [Indexed: 11/17/2022] Open
Abstract
Very early onset inflammatory bowel disease (VEOIBD) denotes children with onset of IBD before six years of age. A number of monogenic disorders are associated with VEOIBD including tetratricopeptide repeat domain 7A (TTC7A) deficiency. TTC7A-deficiency is characterized by apoptotic colitis in milder cases with severe intestinal atresia and immunodeficiency in cases with complete loss of protein. We used whole exome sequencing in a VEOIBD patient presenting with colitis characterized by colonic apoptosis and no identified known VEOIBD variants, to identify compound heterozygous deleterious variants in the Ubiquitin protein ligase E3 component N-recognin 5 (UBR5) gene. Functional studies demonstrated that UBR5 co-immunoprecipitates with the TTC7A and the UBR5 variants had reduced interaction between UBR5 and TTC7A. Together this implicates UBR5 in regulating TTC7A signaling in VEOIBD patients with apoptotic colitis.
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11
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Wang K, Tang J, Liu X, Wang Y, Chen W, Zheng R. UBR5 regulates proliferation and radiosensitivity in human laryngeal carcinoma via the p38/MAPK signaling pathway. Oncol Rep 2020; 44:685-697. [PMID: 32468011 PMCID: PMC7336417 DOI: 10.3892/or.2020.7620] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 04/22/2020] [Indexed: 12/30/2022] Open
Abstract
Laryngeal carcinoma (LCC) is a common malignant tumor with low radiosensitivity and generally poor response rates. The ubiquitin protein ligase E3 component n-recognin 5 (UBR5) has prognostic implications in several neoplasms; however, its role in LCC and radiotherapy sensitivity remains unknown. Immunohistochemistry and bioinformatics analyses were performed to measure UBR5 protein and mRNA expression in LCC and adjacent non-tumor tissues. The gene and protein expression of UBR5 in LCC and HuLa-PC cell lines were measured using quantitative PCR and western blot analyses. Following transfection with small interfering RNA or UBR5 overexpression plasmid in LCC cells, the proliferation, cell cycle distribution, invasion, migration and radiosensitivity of LCC cells were analyzed. UBR5-related lncRNA, targeted miRNA and protein-protein interaction networks were analyzed using bioinformatics. Finally, the expression of the p38/mitogen-activated protein kinase (MAPK) pathway was evaluated following UBR5 silencing in M2E cells treated with radiation. Increased UBR5 expression was observed in LCC tissues compared with adjacent non-tumor tissues, and it was correlated with poor overall survival of LCC patients. After overexpression or silencing of UBR5 in M2E and M4E LCC cells, cell proliferation and radiosensitivity were significantly increased or decreased, respectively, compared with the control groups. The percentage of S phase cells decreased in the UBR5 si-RNA group compared with that in the control group, while overexpression of UBR5 exerted no effect on the cell cycle. In addition, the expression of Bcl-2 and p38 was decreased in the si-UBR5 combined with radiation groups. The level of phosphorylated p38 expression was increased after combination of si-UBR5 with radiation. The small molecule inhibitor of p38/MAPK signaling, SB203580, decreased the viability of UBR5-overexpressing cells and the survival fraction when cells were exposed to radiation. These findings demonstrated that UBR5 may be involved in regulating cell proliferation and sensitivity to radiotherapy in LCC via the p38/MAPK pathway, thereby highlighting its possible value for the development of new therapeutic strategies and targets for the treatment of this disease.
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Affiliation(s)
- Kai Wang
- Department of Otorhinolaryngology‑Head and Neck Surgery, First People's Hospital of Foshan, Foshan, Guangdong 528000, P.R. China
| | - Jun Tang
- Department of Otorhinolaryngology‑Head and Neck Surgery, First People's Hospital of Foshan, Foshan, Guangdong 528000, P.R. China
| | - Xiaolei Liu
- Department of Radiation Oncology, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, P.R. China
| | - Yuejian Wang
- Department of Otorhinolaryngology‑Head and Neck Surgery, First People's Hospital of Foshan, Foshan, Guangdong 528000, P.R. China
| | - Weixiong Chen
- Department of Otorhinolaryngology‑Head and Neck Surgery, First People's Hospital of Foshan, Foshan, Guangdong 528000, P.R. China
| | - Rui Zheng
- Department of Otorhinolaryngology‑Head and Neck Surgery, The Third Affiliated Hospital, Sun Yat‑sen University, Guangzhou, Guangdong 510630, P.R. China
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12
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Wang Y, Argiles-Castillo D, Kane EI, Zhou A, Spratt DE. HECT E3 ubiquitin ligases - emerging insights into their biological roles and disease relevance. J Cell Sci 2020; 133:133/7/jcs228072. [PMID: 32265230 DOI: 10.1242/jcs.228072] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Homologous to E6AP C-terminus (HECT) E3 ubiquitin ligases play a critical role in various cellular pathways, including but not limited to protein trafficking, subcellular localization, innate immune response, viral infections, DNA damage responses and apoptosis. To date, 28 HECT E3 ubiquitin ligases have been identified in humans, and recent studies have begun to reveal how these enzymes control various cellular pathways by catalyzing the post-translational attachment of ubiquitin to their respective substrates. New studies have identified substrates and/or interactors with different members of the HECT E3 ubiquitin ligase family, particularly for E6AP and members of the neuronal precursor cell-expressed developmentally downregulated 4 (NEDD4) family. However, there still remains many unanswered questions about the specific roles that each of the HECT E3 ubiquitin ligases have in maintaining cellular homeostasis. The present Review discusses our current understanding on the biological roles of the HECT E3 ubiquitin ligases in the cell and how they contribute to disease development. Expanded investigations on the molecular basis for how and why the HECT E3 ubiquitin ligases recognize and regulate their intracellular substrates will help to clarify the biochemical mechanisms employed by these important enzymes in ubiquitin biology.
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Affiliation(s)
- Yaya Wang
- College of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an, Shanxi, China 710054.,Gustaf H. Carlson School of Chemistry and Biochemistry, Clark University, 950 Main St., Worcester, MA 01610, USA
| | - Diana Argiles-Castillo
- Gustaf H. Carlson School of Chemistry and Biochemistry, Clark University, 950 Main St., Worcester, MA 01610, USA
| | - Emma I Kane
- Gustaf H. Carlson School of Chemistry and Biochemistry, Clark University, 950 Main St., Worcester, MA 01610, USA
| | - Anning Zhou
- College of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an, Shanxi, China 710054
| | - Donald E Spratt
- Gustaf H. Carlson School of Chemistry and Biochemistry, Clark University, 950 Main St., Worcester, MA 01610, USA
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