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Kim H, Jung SY, Yun HH, Yoo K, Lee JS, Lee JH. UBE4B regulates p27 expression in A549 NSCLC cells through regulating the interaction of HuR and the p27 5' UTR. Biochem Biophys Res Commun 2024; 695:149484. [PMID: 38211530 DOI: 10.1016/j.bbrc.2024.149484] [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: 12/25/2023] [Accepted: 01/04/2024] [Indexed: 01/13/2024]
Abstract
Ubiquitination factor E4B (UBE4B) has a tumor-promoting effect, demonstrated by its aberrant expression in various types of cancers, and in vitro studies have shown that the retardation of cancer cell proliferation can be induced by targeting UBE4B. However, the molecular pathways through which UBE4B exerts its oncogenic activities have not yet been clearly identified and existing knowledge is limited to p53 and its subsequent downstream targets. In this study, we demonstrated that UBE4B regulates p27 expression in A549 cells via the cap-independent translation pathway following treatment with rapamycin and cycloheximide (CHX). Subsequently, we identified that UBE4B regulates p27 translation by regulating the interaction between human antigen R (HuR) and the p27 internal ribosomal entry site (IRES). First, UBE4B interacts with HuR, which inhibits p27 translation through the IRES. Secondly, the interaction between HuR and the p27 IRES was diminished by UBE4B depletion and enhanced by UBE4B overexpression. Finally, HuR depletion-induced growth retardation, accompanied by p27 accumulation, was restored by UBE4B overexpression. Collectively, these results suggest that the oncogenic properties of UBE4B in A549 cells are mediated by HuR, suggesting the potential of targeting the UBE4B-HuR-p27 axis as a therapeutic strategy for lung cancer.
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Affiliation(s)
- Hyungmin Kim
- Department of Biochemistry, College of Medicine, The Catholic University of Korea, Seoul, 06591, South Korea; Institute for Aging and Metabolic Diseases, College of Medicine, The Catholic University of Korea, Seoul, 06591, South Korea
| | - Soon-Young Jung
- Department of Biochemistry, College of Medicine, The Catholic University of Korea, Seoul, 06591, South Korea; Institute for Aging and Metabolic Diseases, College of Medicine, The Catholic University of Korea, Seoul, 06591, South Korea
| | - Hye Hyeon Yun
- Department of Biochemistry, College of Medicine, The Catholic University of Korea, Seoul, 06591, South Korea; Institute for Aging and Metabolic Diseases, College of Medicine, The Catholic University of Korea, Seoul, 06591, South Korea
| | - Kyunghyun Yoo
- Department of Biochemistry, College of Medicine, The Catholic University of Korea, Seoul, 06591, South Korea; Institute for Aging and Metabolic Diseases, College of Medicine, The Catholic University of Korea, Seoul, 06591, South Korea
| | - Jae-Seon Lee
- Research Center for Controlling Intercellular Communication (RCIC), College of Medicine, Inha University, Incheon, 22212, South Korea; Program in Biomedical Science & Engineering, Inha University, Incheon, 22212, South Korea
| | - Jeong-Hwa Lee
- Department of Biochemistry, College of Medicine, The Catholic University of Korea, Seoul, 06591, South Korea; Institute for Aging and Metabolic Diseases, College of Medicine, The Catholic University of Korea, Seoul, 06591, South Korea.
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Shao X, Zhu J, Shi Y, Fang H, Chen J, Zhang Y, Wang J, Jian H, Lan S, Jiang F, Zhong F, Zhang Y, Cao C. Upregulated UBE4B expression correlates with poor prognosis and tumor immune infiltration in hepatocellular carcinoma. Aging (Albany NY) 2022; 14:9632-9646. [PMID: 36470669 PMCID: PMC9792214 DOI: 10.18632/aging.204414] [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: 10/17/2022] [Accepted: 11/23/2022] [Indexed: 12/11/2022]
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is a major human health concern. Increasing evidence has demonstrated that ubiquitin ligase E4B (UBE4B) may be involved in the occurrence and development of various human cancers and may affect prognosis. However, the specific role and mechanism of UBE4B in HCC is unclear. METHODS A pan-cancer analysis of UBE4B expression, clinicopathological features, and prognosis was performed using bioinformatics techniques. Subsequently, the expression, prognosis, and correlation of UBE4B and its upstream miRNAs and lncRNAs were analyzed. We investigated the relationship between UBE4B expression and immune cell infiltration, immunomodulatory factors, and chemokines in HCC. The expression levels of UBE4B and its upstream lncRNAs (FGD5-AS1, LINC00858, and SNHG16) and miRNAs (hsa-miR-22-3p) were evaluated in HCC cell lines using qRT-PCR. RESULTS UBE4B expression increased in HCC and was correlated with a poor survival rate in patients with HCC. A ceRNA network was established to identify the UBE4B-hsa-miR-22-3p-FGD5-AS1/LINC00858/SNHG16 regulatory axis in HCC. UBE4B expression was significantly associated with immune cell infiltration, immunomodulators, chemokines, and their receptors in HCC. The mRNA expression of FGD5-AS1, LINC00858, SNHG16, and UBE4B was higher in the HCC cell lines (7721 and HepG2) than in the normal hepatocyte line (LO2), and the expression of hsa-miR-22-3p mRNA showed a decreasing trend. CONCLUSIONS Our findings showed that upregulation of UBE4B was associated with poor prognosis and tumor immune infiltration in HCC. These findings will aid in understanding the relevant functions of UBE4B and provide new strategies for drug development and exploration of prognosis-related biomarkers.
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Affiliation(s)
- Xuyang Shao
- Graduate School of Bengbu Medical College, Bengbu 233000, Anhui Province, China,Department of General Surgery, The Second Affiliated Hospital of Jiaxing University, Jiaxing 314000, Zhejiang Province, China
| | - Jun Zhu
- Department of Oncology, Fuyang Hospital of Anhui Medical University, Fuyang 236000, Anhui Province, China
| | - Yanlong Shi
- Hepatopancreatobiliary Center, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210003, Jiangsu Province, China
| | - Hanlu Fang
- Institute of Medical and Health Science of HeBMU, Hebei Medical University, Shijiazhuang 050017, Hebei Province, China
| | - Jingsi Chen
- Department of Intensive Care Unit, Fuyang Women and Children’s Hospital, Fuyang 236000, Anhui Province, China
| | - Yixiao Zhang
- The First Clinical College of Zhejiang Chinese Medical University, Hangzhou 310053, Zhejiang Province, China
| | - Jingyan Wang
- Department of Anesthesia, Shaoxing People’s Hospital, Shaoxing 312000, Zhejiang Province, China
| | - Haokun Jian
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, Henan Province, China
| | - Sheng Lan
- The Second Clinical College of Guangzhou Medical University, Guangzhou 510030, Guangdong Province, China
| | - Fei Jiang
- Department of General Surgery, Fuyang Hospital of Anhui Medical University, Fuyang 236000, Anhui Province, China
| | - Fei Zhong
- Department of Oncology, Fuyang Hospital of Anhui Medical University, Fuyang 236000, Anhui Province, China,Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei 230000, Anhui Province, China
| | - Yewei Zhang
- Hepatopancreatobiliary Center, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210003, Jiangsu Province, China
| | - Chenxi Cao
- Graduate School of Bengbu Medical College, Bengbu 233000, Anhui Province, China,Department of General Surgery, The Second Affiliated Hospital of Jiaxing University, Jiaxing 314000, Zhejiang Province, China
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Kim H, Lee J, Jung SY, Yun HH, Ko JH, Lee JH. SF3B4 Depletion Retards the Growth of A549 Non-Small Cell Lung Cancer Cells via UBE4B-Mediated Regulation of p53/p21 and p27 Expression. Mol Cells 2022; 45:718-728. [PMID: 35996826 PMCID: PMC9589371 DOI: 10.14348/molcells.2022.0037] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 06/07/2022] [Accepted: 06/07/2022] [Indexed: 11/27/2022] Open
Abstract
Splicing factor B subunit 4 (SF3B4), a component of the U2-pre-mRNA spliceosomal complex, contributes to tumorigenesis in several types of tumors. However, the oncogenic potential of SF3B4 in lung cancer has not yet been determined. The in vivo expression profiles of SF3B4 in non-small cell lung cancer (NSCLC) from publicly available data revealed a significant increase in SF3B4 expression in tumor tissues compared to that in normal tissues. The impact of SF3B4 deletion on the growth of NSCLC cells was determined using a siRNA strategy in A549 lung adenocarcinoma cells. SF3B4 silencing resulted in marked retardation of the A549 cell proliferation, accompanied by the accumulation of cells at the G0/G1 phase and increased expression of p27, p21, and p53. Double knockdown of SF3B4 and p53 resulted in the restoration of p21 expression and partial recovery of cell proliferation, indicating that the p53/p21 axis is involved, at least in part, in the SF3B4-mediated regulation of A549 cell proliferation. We also provided ubiquitination factor E4B (UBE4B) is essential for p53 accumulation after SF3B4 depletion based on followings. First, co-immunoprecipitation showed that SF3B4 interacts with UBE4B. Furthermore, UBE4B levels were decreased by SF3B4 depletion. UBE4B depletion, in turn, reproduced the outcome of SF3B4 depletion, including reduction of polyubiquitinated p53 levels, subsequent induction of p53/p21 and p27, and proliferation retardation. Collectively, our findings indicate the important role of SF3B4 in the regulation of A549 cell proliferation through the UBE4B/p53/p21 axis and p27, implicating the therapeutic strategies for NSCLC targeting SF3B4 and UBE4B.
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Affiliation(s)
- Hyungmin Kim
- Department of Biochemistry, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
- Institute for Aging and Metabolic Diseases, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
- Department of Biomedicine & Health Sciences, Graduate School, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
| | - Jeehan Lee
- Department of Biochemistry, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
- Institute for Aging and Metabolic Diseases, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
| | - Soon-Young Jung
- Department of Biochemistry, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
- Institute for Aging and Metabolic Diseases, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
| | - Hye Hyeon Yun
- Department of Biochemistry, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
- Institute for Aging and Metabolic Diseases, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
| | - Jeong-Heon Ko
- Genome Editing Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea
| | - Jeong-Hwa Lee
- Department of Biochemistry, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
- Institute for Aging and Metabolic Diseases, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
- Department of Biomedicine & Health Sciences, Graduate School, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
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Liu K, Liu X, Sun Q, Tang Z, Wang G, Xu Z. Construction of an individualized clinical prognostic index based on ubiquitination-associated lncRNA in clear cell renal cell carcinoma patients. World J Surg Oncol 2022; 20:148. [PMID: 35538487 PMCID: PMC9087998 DOI: 10.1186/s12957-022-02618-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 04/29/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND ccRCC is considered as the main subtype of RCC, which accounted for sixth deadliest cancer worldwide. Recently, ubiquitination has been reported to be closely involved in the progression of tumore. The purpose of this study was to identify the ubiquitination-associated genes and co-expressed lncRNAs on the prognosis of clear cell renal cell carcinoma (ccRCC) patients. METHODS AND PATIENTS We downloaded 530 cases and the corresponding transcriptome profiling from The Cancer Genome Atlas (TCGA) database. We distinguished mRNA and lncRNA expression data from the transcriptome profiling and then extracted the expression of mRNAs that regulate protein ubiquitination. We obtained lncRNAs associated with protein ubiquitination regulation from the lncRNA data by gene co-expression analysis. Cox regression analysis of survival time, survival status, and lncRNA expression level was carried out, and a prognostic index (PI) was constructed. RESULTS The PI was established based on 8 prognostic lncRNAs that regulate protein ubiquitination and distinguish the high-risk group patients from all patients. Multivariate analysis indicated that this PI was an individualized clinical prognostic factor for patients with ccRCC. Regarding clinical characteristics, a ubiquitination-associated clinical-prognostic index (UCPI), containing 8 ubiquitination-related lncRNAs and age, was established and tested with AUC of 0.80. CONCLUSION We established a UCPI containing 8 lncRNAs related to protein ubiquitination. This UCPI may become an appropriate model to predict the prognosis in ccRCC patients and guide clinicians to adjust the follow-up regimen.
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Affiliation(s)
- Kun Liu
- Department of Urology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, 223300, China
| | - Xuzhong Liu
- Department of Urology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, 223300, China
| | - Qing Sun
- Department of Urology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, 223300, China
| | - Zhiwang Tang
- Department of Urology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, 223300, China
| | - Gongcheng Wang
- Department of Urology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, 223300, China
| | - Zongyuan Xu
- Department of Urology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, 223300, China.
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Wu S, Xie L, Cheng S, Fan Z, Sang H, Li Q. UBE4B promotes the development of lung adenocarcinoma by enhancing proliferation, migration and glycolysis via PP2A/AKT signaling. Pathol Res Pract 2022; 232:153762. [DOI: 10.1016/j.prp.2022.153762] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 01/03/2022] [Accepted: 01/06/2022] [Indexed: 02/03/2023]
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