1
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Li M, Ding W, Deng Y, Zhao Y, Liu Q, Zhou Z. The AAA-ATPase Ter94 regulates wing size in Drosophila by suppressing the Hippo pathway. Commun Biol 2024; 7:533. [PMID: 38710747 PMCID: PMC11074327 DOI: 10.1038/s42003-024-06246-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 04/25/2024] [Indexed: 05/08/2024] Open
Abstract
Insect wing development is a fascinating and intricate process that involves the regulation of wing size through cell proliferation and apoptosis. In this study, we find that Ter94, an AAA-ATPase, is essential for proper wing size dependently on its ATPase activity. Loss of Ter94 enables the suppression of Hippo target genes. When Ter94 is depleted, it results in reduced wing size and increased apoptosis, which can be rescued by inhibiting the Hippo pathway. Biochemical experiments reveal that Ter94 reciprocally binds to Mer, a critical upstream component of the Hippo pathway, and disrupts its interaction with Ex and Kib. This disruption prevents the formation of the Ex-Mer-Kib complex, ultimately leading to the inactivation of the Hippo pathway and promoting proper wing development. Finally, we show that hVCP, the human homolog of Ter94, is able to substitute for Ter94 in modulating Drosophila wing size, underscoring their functional conservation. In conclusion, Ter94 plays a positive role in regulating wing size by interfering with the Ex-Mer-Kib complex, which results in the suppression of the Hippo pathway.
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Affiliation(s)
- Mingming Li
- College of Life Sciences, Shandong Agricultural University, Tai'an, China
| | - Wenhao Ding
- College of Life Sciences, Shandong Agricultural University, Tai'an, China
| | - Yanran Deng
- Key Laboratory of Biodiversity Conservation and Bioresource Utilization of Jiangxi Province, College of Life Sciences, Jiangxi Normal University, Nanchang, China
| | - Yunhe Zhao
- College of Life Sciences, Shandong Agricultural University, Tai'an, China
| | - Qingxin Liu
- College of Life Sciences, Shandong Agricultural University, Tai'an, China.
| | - Zizhang Zhou
- College of Life Sciences, Shandong Agricultural University, Tai'an, China.
- Key Laboratory of Biodiversity Conservation and Bioresource Utilization of Jiangxi Province, College of Life Sciences, Jiangxi Normal University, Nanchang, China.
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2
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Zhai C, Wang Y, Qi S, Yang M, Wu S. Yki stability and activity are regulated by Ca 2+-calpains axis in Drosophila. J Genet Genomics 2024:S1673-8527(24)00082-1. [PMID: 38663479 DOI: 10.1016/j.jgg.2024.04.011] [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: 01/26/2024] [Revised: 04/14/2024] [Accepted: 04/15/2024] [Indexed: 06/01/2024]
Abstract
Yorkie (Yki) is a key effector of the Hippo pathway that activates the expression of targets by associating with the transcription factor Scalloped. Various upstream signals, such as cell polarity and mechanical cues, control transcriptional programs by regulating Yki activity. Searching for Yki regulatory factors has far-reaching significance for studying the Hippo pathway in animal development and human diseases. In this study, we identify Calpain-A (CalpA) and Calpain-B (CalpB), two calcium (Ca2+)-dependent modulatory proteases of the calpain family, as critical regulators of Yki in Drosophila that interact with Yki, respectively. Ca2+ induces Yki cleavage in a CalpA/CalpB-dependent manner, and the protease activity of CalpA/CalpB is pivotal for the cleavage. Furthermore, overexpression of CalpA or CalpB in Drosophila partially restores the large wing phenotype caused by Yki overexpression, and F98 of Yki is an important cleavage site by the Ca2+-calpains axis. Our study uncovers a unique mechanism whereby the Ca2+-calpain axis modulates Yki activity through protein cleavage.
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Affiliation(s)
- Chaojun Zhai
- The State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Yunfeng Wang
- The State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Shenao Qi
- The State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Muhan Yang
- The State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Shian Wu
- The State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin 300071, China.
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3
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Deng Y, Ding W, Ma K, Zhan M, Sun L, Zhou Z, Lu L. SPOP point mutations regulate substrate preference and affect its function. Cell Death Dis 2024; 15:172. [PMID: 38409107 PMCID: PMC10897488 DOI: 10.1038/s41419-024-06565-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 02/14/2024] [Accepted: 02/15/2024] [Indexed: 02/28/2024]
Abstract
The adaptor SPOP recruits substrates to CUL3 E3 ligase for ubiquitination and degradation. Structurally, SPOP harbors a MATH domain for substrate recognition, and a BTB domain responsible for binding CUL3. Reported point mutations always occur in SPOP's MATH domain and are through to disrupt affinities of SPOP to substrates, thereby leading to tumorigenesis. In this study, we identify the tumor suppressor IRF2BP2 as a novel substrate of SPOP. SPOP enables to attenuate IRF2BP2-inhibited cell proliferation and metastasis in HCC cells. However, overexpression of wild-type SPOP alone suppresses HCC cell proliferation and metastasis. In addition, a HCC-derived mutant, SPOP-M35L, shows an increased affinity to IRF2BP2 in comparison with wild-type SPOP. SPOP-M35L promotes HCC cell proliferation and metastasis, suggesting that M35L mutation possibly reprograms SPOP from a tumor suppressor to an oncoprotein. Taken together, this study uncovers mutations in SPOP's MATH lead to distinct functional consequences in context-dependent manners, rather than simply disrupting its interactions with substrates, raising a noteworthy concern that we should be prudent to select SPOP as therapeutic target for cancers.
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Affiliation(s)
- Yanran Deng
- Jiangsu Key laboratory of Drug Screening, China Pharmaceutical University, 210009, Nanjing, China
- Key Laboratory of Biodiversity Conservation and Bioresource Utilization of Jiangxi Province, College of Life Sciences, Jiangxi Normal University, 330022, Nanchang, China
| | - Wenhao Ding
- College of Life Sciences, Shandong Agricultural University, 271018, Tai'an, China
| | - Kaize Ma
- College of Life Sciences, Shandong Agricultural University, 271018, Tai'an, China
| | - Meixiao Zhan
- Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and Treatment, Zhuhai People's Hospital (Zhuhai Hospital Affiliated with Jinan University), 519000, Zhuhai, Guangdong, China
| | - Li Sun
- Jiangsu Key laboratory of Drug Screening, China Pharmaceutical University, 210009, Nanjing, China.
| | - Zizhang Zhou
- Key Laboratory of Biodiversity Conservation and Bioresource Utilization of Jiangxi Province, College of Life Sciences, Jiangxi Normal University, 330022, Nanchang, China.
- College of Life Sciences, Shandong Agricultural University, 271018, Tai'an, China.
| | - Ligong Lu
- Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and Treatment, Zhuhai People's Hospital (Zhuhai Hospital Affiliated with Jinan University), 519000, Zhuhai, Guangdong, China.
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4
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Nakamura F. The Role of Mechanotransduction in Contact Inhibition of Locomotion and Proliferation. Int J Mol Sci 2024; 25:2135. [PMID: 38396812 PMCID: PMC10889191 DOI: 10.3390/ijms25042135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/30/2024] [Accepted: 02/01/2024] [Indexed: 02/25/2024] Open
Abstract
Contact inhibition (CI) represents a crucial tumor-suppressive mechanism responsible for controlling the unbridled growth of cells, thus preventing the formation of cancerous tissues. CI can be further categorized into two distinct yet interrelated components: CI of locomotion (CIL) and CI of proliferation (CIP). These two components of CI have historically been viewed as separate processes, but emerging research suggests that they may be regulated by both distinct and shared pathways. Specifically, recent studies have indicated that both CIP and CIL utilize mechanotransduction pathways, a process that involves cells sensing and responding to mechanical forces. This review article describes the role of mechanotransduction in CI, shedding light on how mechanical forces regulate CIL and CIP. Emphasis is placed on filamin A (FLNA)-mediated mechanotransduction, elucidating how FLNA senses mechanical forces and translates them into crucial biochemical signals that regulate cell locomotion and proliferation. In addition to FLNA, trans-acting factors (TAFs), which are proteins or regulatory RNAs capable of directly or indirectly binding to specific DNA sequences in distant genes to regulate gene expression, emerge as sensitive players in both the mechanotransduction and signaling pathways of CI. This article presents methods for identifying these TAF proteins and profiling the associated changes in chromatin structure, offering valuable insights into CI and other biological functions mediated by mechanotransduction. Finally, it addresses unanswered research questions in these fields and delineates their possible future directions.
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Affiliation(s)
- Fumihiko Nakamura
- School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, China
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5
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Abstract
Ubiquitination is an essential regulator of most, if not all, signalling pathways, and defects in cellular signalling are central to cancer initiation, progression and, eventually, metastasis. The attachment of ubiquitin signals by E3 ubiquitin ligases is directly opposed by the action of approximately 100 deubiquitinating enzymes (DUBs) in humans. Together, DUBs and E3 ligases coordinate ubiquitin signalling by providing selectivity for different substrates and/or ubiquitin signals. The balance between ubiquitination and deubiquitination is exquisitely controlled to ensure properly coordinated proteostasis and response to cellular stimuli and stressors. Not surprisingly, then, DUBs have been associated with all hallmarks of cancer. These relationships are often complex and multifaceted, highlighted by the implication of multiple DUBs in certain hallmarks and by the impact of individual DUBs on multiple cancer-associated pathways, sometimes with contrasting cancer-promoting and cancer-inhibiting activities, depending on context and tumour type. Although it is still understudied, the ever-growing knowledge of DUB function in cancer physiology will eventually identify DUBs that warrant specific inhibition or activation, both of which are now feasible. An integrated appreciation of the physiological consequences of DUB modulation in relevant cancer models will eventually lead to the identification of patient populations that will most likely benefit from DUB-targeted therapies.
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Affiliation(s)
- Grant Dewson
- Ubiquitin Signalling Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia.
- Department of Medical Biology, University of Melbourne, Melbourne, Victoria, Australia.
| | - Pieter J A Eichhorn
- Curtin Medical School, Curtin University, Perth, Western Australia, Australia.
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore.
| | - David Komander
- Ubiquitin Signalling Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia.
- Department of Medical Biology, University of Melbourne, Melbourne, Victoria, Australia.
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6
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Wang L, Wang J, Ma X, Ju G, Shi C, Wang W, Wu J. USP35 promotes HCC development by stabilizing ABHD17C and activating the PI3K/AKT signaling pathway. Cell Death Discov 2023; 9:421. [PMID: 37993419 PMCID: PMC10665393 DOI: 10.1038/s41420-023-01714-5] [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: 08/07/2023] [Revised: 10/25/2023] [Accepted: 11/07/2023] [Indexed: 11/24/2023] Open
Abstract
S-palmitoylation is a reversible protein lipidation that controls the subcellular localization and function of targeted proteins, including oncogenes such as N-RAS. The depalmitoylation enzyme family ABHD17s can remove the S-palmitoylation from N-RAS to facilitate cancer development. We previously showed that ABHD17C has oncogenic roles in hepatocellular carcinoma (HCC) cells, and its mRNA stability is controlled by miR-145-5p. However, it is still unclear whether ABHD17C is regulated at the post-translational level. In the present study, we identified multiple ubiquitin-specific proteases (USPs) that can stabilize ABHD17C by inhibiting the ubiquitin-proteasome-mediated degradation. Among them, USP35 is the most potent stabilizer of ABHD17C. We found a positive correlation between the elevated expression levels of USP35 and ABHD17C, together with their association with increased PI3K/AKT pathway activity in HCCs. USP35 knockdown caused decreased ABHD17C protein level, impaired PI3K/AKT pathway, reduced proliferation, cell cycle arrest, increased apoptosis, and mitigated migration and invasion. USP35 can interact with and stabilize ABHD17C by inhibiting its ubiquitination. Overexpression of ABHD17C can rescue the defects caused by USP35 knockdown in HCC cells. In support of these in vitro observations, xenograft assay data also showed that USP35 deficiency repressed HCC development in vivo, characterized by reduced proliferation and disrupted PI3K/AKT signaling. Together, these findings demonstrate that USP35 may promote HCC development by stabilization of ABHD17C and activation of the PI3K/AKT pathway.
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Affiliation(s)
- Linpei Wang
- Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital of Fujian Medical University, 362000, Quanzhou, Fujian Province, China
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, 310003, Hangzhou, Zhejiang Province, China
| | - Jiawei Wang
- Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital of Fujian Medical University, 362000, Quanzhou, Fujian Province, China
| | - Xiaoqiu Ma
- Department of Health Medicine, The 910th Hospital of People's Liberation Army, 362000, Quanzhou, Fujian Province, China
| | - Guomin Ju
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, 310003, Hangzhou, Zhejiang Province, China
| | - Chunfeng Shi
- Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital of Fujian Medical University, 362000, Quanzhou, Fujian Province, China
| | - Wei Wang
- Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital of Fujian Medical University, 362000, Quanzhou, Fujian Province, China.
| | - Jian Wu
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, 310003, Hangzhou, Zhejiang Province, China.
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7
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Park HB, Baek KH. Current and future directions of USP7 interactome in cancer study. Biochim Biophys Acta Rev Cancer 2023; 1878:188992. [PMID: 37775071 DOI: 10.1016/j.bbcan.2023.188992] [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: 07/28/2023] [Revised: 09/14/2023] [Accepted: 09/23/2023] [Indexed: 10/01/2023]
Abstract
The ubiquitin-proteasome system (UPS) is an essential protein quality controller for regulating protein homeostasis and autophagy. Ubiquitination is a protein modification process that involves the binding of one or more ubiquitins to substrates through a series of enzymatic processes. These include ubiquitin-activating enzymes (E1), ubiquitin-conjugating enzymes (E2), and ubiquitin ligases (E3). Conversely, deubiquitination is a reverse process that removes ubiquitin from substrates via deubiquitinating enzymes (DUBs). Dysregulation of ubiquitination-related enzymes can lead to various human diseases, including cancer, through the modulation of protein ubiquitination. The most structurally and functionally studied DUB is the ubiquitin-specific protease 7 (USP7). Both the TRAF and UBL domains of USP7 are known to bind to the [P/A/E]-X-X-S or K-X-X-X-K motif of substrates. USP7 has been shown to be involved in cancer pathogenesis by binding with numerous substrates. Recently, a novel substrate of USP7 was discovered through a systemic analysis of its binding motif. This review summarizes the currently discovered substrates and cellular functions of USP7 in cancer and suggests putative substrates of USP7 through a comprehensive systemic analysis.
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Affiliation(s)
- Hong-Beom Park
- Department of Convergence, CHA University, Gyeonggi-Do 13488, Republic of Korea
| | - Kwang-Hyun Baek
- Department of Convergence, CHA University, Gyeonggi-Do 13488, Republic of Korea; International Ubiquitin Center(,) CHA University, Gyeonggi-Do 13488, Republic of Korea.
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8
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Wang X, Zou C, Hou C, Bian Z, Jiang W, Li M, Zhu L. Extracellular vesicles from bone marrow mesenchymal stem cells alleviate osteoporosis in mice through USP7-mediated YAP1 protein stability and the Wnt/β-catenin pathway. Biochem Pharmacol 2023; 217:115829. [PMID: 37748664 DOI: 10.1016/j.bcp.2023.115829] [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: 07/04/2023] [Revised: 09/14/2023] [Accepted: 09/22/2023] [Indexed: 09/27/2023]
Abstract
Mesenchymal stem cells (MSCs) and their derived extracellular vesicles (EVs) have emerged as promising tools for promoting bone regeneration. This study investigates the functions of EVs derived from bone marrow-derived MSCs (BMSCs) in osteoporosis (OP) and the molecular mechanism. EVs were isolated from primary BMSCs in mice. A mouse model with OP was induced by ovariectomy. Treatment with EVs restored bone mass and strength, attenuated trabecular bone loss and cartilage damage, and increased osteogenesis while suppressing osteoclastogenesis in ovariectomized mice. In vitro, the EVs treatment improved the osteogenic differentiation of MC-3T3 while inhibiting osteoclastic differentiation of RAW264.7 cells. Microarray analysis revealed a significant upregulation of ubiquitin specific peptidase 7 (USP7) expression in mouse bone tissues following EV treatment. USP7 was found to interact with Yes1 associated transcriptional regulator (YAP1) and stabilize YAP1 protein through deubiquitination modification. YAP1-related genes were enriched in the Wnt/β-catenin signaling, and overexpression of YAP1 promoted the nuclear translocation of β-catenin. Functional experiments underscored the critical role of maintaining USP7, YAP1, and β-catenin levels in the pro-osteogenic and anti-osteoclastogenic properties of the BMSC-EVs. In conclusion, this study demonstrates that USP7, delivered by BMSC-derived EVs, stabilizes YAP1 protein, thereby ameliorating bone formation in OP through the Wnt/β-catenin activation.
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Affiliation(s)
- Xuepeng Wang
- Department of Orthopedics Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, Zhejiang, PR China
| | - Chunchun Zou
- Department of Obstetrics and Gynecology, Hangzhou Third People's Hospital, Hangzhou 310009, Zhejiang, PR China
| | - Changju Hou
- Department of Orthopedics Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, Zhejiang, PR China
| | - Zhenyu Bian
- Department of Orthopedics Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, Zhejiang, PR China
| | - Wu Jiang
- Department of Orthopedics Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, Zhejiang, PR China
| | - Maoqiang Li
- Department of Orthopedics Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, Zhejiang, PR China.
| | - Liulong Zhu
- Department of Orthopedics Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, Zhejiang, PR China.
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9
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Weidle UH, Nopora A. Hepatocellular Carcinoma: Up-regulated Circular RNAs Which Mediate Efficacy in Preclinical In Vivo Models. Cancer Genomics Proteomics 2023; 20:500-521. [PMID: 37889063 PMCID: PMC10614070 DOI: 10.21873/cgp.20401] [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: 07/03/2023] [Revised: 08/22/2023] [Accepted: 08/30/2023] [Indexed: 10/28/2023] Open
Abstract
Hepatocellular carcinoma (HCC) ranges as number two with respect to the incidence of tumors and is associated with a dismal prognosis. The therapeutic efficacy of approved multi-tyrosine kinase inhibitors and checkpoint inhibitors is modest. Therefore, the identification of new therapeutic targets and entities is of paramount importance. We searched the literature for up-regulated circular RNAs (circRNAs) which mediate efficacy in preclinical in vivo models of HCC. Our search resulted in 14 circRNAs which up-regulate plasma membrane transmembrane receptors, while 5 circRNAs induced secreted proteins. Two circRNAs facilitated replication of Hepatitis B or C viruses. Three circRNAs up-regulated high mobility group proteins. Six circRNAs regulated components of the ubiquitin system. Seven circRNAs induced GTPases of the family of ras-associated binding proteins (RABs). Three circRNAs induced redox-related proteins, eight of them up-regulated metabolic enzymes and nine circRNAs induced signaling-related proteins. The identified circRNAs up-regulate the corresponding targets by sponging microRNAs. Identified circRNAs and their targets have to be validated by standard criteria of preclinical drug development. Identified targets can potentially be inhibited by small molecules or antibody-based moieties and circRNAs can be inhibited by small-interfering RNAs (siRNAs) or short hairpin RNAs (shRNAs) for therapeutic purposes.
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Affiliation(s)
- Ulrich H Weidle
- Roche Pharma Research and Early Development, Roche Innovation Center Munich, Penzberg, Germany
| | - Adam Nopora
- Roche Pharma Research and Early Development, Roche Innovation Center Munich, Penzberg, Germany
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10
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Shin SC, Park J, Kim KH, Yoon JM, Cho J, Ha BH, Oh Y, Choo H, Song EJ, Kim EE. Structural and functional characterization of USP47 reveals a hot spot for inhibitor design. Commun Biol 2023; 6:970. [PMID: 37740002 PMCID: PMC10516900 DOI: 10.1038/s42003-023-05345-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 09/12/2023] [Indexed: 09/24/2023] Open
Abstract
USP47 is widely involved in tumor development, metastasis, and other processes while performing a more regulatory role in inflammatory responses, myocardial infarction, and neuronal development. In this study, we investigate the functional and biochemical properties of USP47, whereby depleting USP47 inhibited cancer cell growth in a p53-dependent manner-a phenomenon that enhances during the simultaneous knockdown of USP7. Full-length USP47 shows higher deubiquitinase activity than the catalytic domain. The crystal structures of the catalytic domain, in its free and ubiquitin-bound states, reveal that the misaligned catalytic triads, ultimately, become aligned upon ubiquitin-binding, similar to USP7, thereby becoming ready for catalysis. Yet, the composition and lengths of BL1, BL2, and BL3 of USP47 differ from those for USP7, and they contribute to the observed selectivity. Our study provides molecular details of USP47 regulation, substrate recognition, and the hotspots for drug discovery by targeting USP47.
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Affiliation(s)
- Sang Chul Shin
- Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
- Research Resources Division, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Jinyoung Park
- Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
- Division of Bio‑Medical Science and Technology, KIST‑School, University of Science and Technology (UST), Seoul, 02792, Korea
| | - Kyung Hee Kim
- Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Jung Min Yoon
- Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Jinhong Cho
- Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Byung Hak Ha
- Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
- Dana-Farber Cancer Institute, Boston, MA, 02215, USA
| | - Yeonji Oh
- Brain Science Institute, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Hyunah Choo
- Division of Bio‑Medical Science and Technology, KIST‑School, University of Science and Technology (UST), Seoul, 02792, Korea
- Brain Science Institute, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Eun Joo Song
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, 03760, Republic of Korea.
| | - Eunice EunKyeong Kim
- Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea.
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11
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Wang S, Liu K, Han X, Cheng Y, Zhao E, Brat DJ, Sun Z, Fang D. ATXN3 deubiquitinates YAP1 to promote tumor growth. Am J Cancer Res 2023; 13:4222-4234. [PMID: 37818078 PMCID: PMC10560956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Accepted: 04/11/2023] [Indexed: 10/12/2023] Open
Abstract
The ubiquitin-specific peptidase Ataxin-3 (ATXN3) has emerged as a potential oncogene in a variety of human cancers. However, the molecular mechanisms underlying how ATXN3 achieves its tumorigenic functions remain largely undefined. Herein, we report that targeted deletion of the ATXN3 gene in cancer cells by the CRISPR-Cas9 system resulted in decreased protein expression of Yes-associated protein 1 (YAP1) without altering its mRNA transcription. Interestingly, genetic ATXN3 suppression selectively inhibited the expression levels of YAP1 target genes including the connective tissue growth factor (Ctgf) and cysteine-rich angiogenic inducer 61 (Cyr61), both of which have important functions in cell adhesion, migration, proliferation and angiogenesis. Consequently, ATXN3 suppression resulted in reduced cancer cell growth and migration, which can also be largely rescued by YAP1 reconstitution. At the molecular level, ATNX3 interacts with the WW domains of YAP1 to protect YAP1 from ubiquitination-mediated degradation. Immunohistology analysis revealed a strong positive correlation between ATXN3 and YAP1 protein expression in human breast and pancreatic cancers. Collectively, our study defines ATXN3 as a previously unknown YAP1 deubiquitinase in tumorigenesis and provides a rationale for ATXN3 targeting in antitumor chemotherapy.
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Affiliation(s)
- Shengnan Wang
- College of Basic Medical Sciences, Dalian Medical UniversityDalian 116044, Liaoning, China
- Department of Pathology, Northwestern University Feinberg School of MedicineChicago, IL 60611, USA
| | - Kun Liu
- Department of Pathology, Northwestern University Feinberg School of MedicineChicago, IL 60611, USA
| | - Xiaohua Han
- Department of Physiology, School of Basic Medicine, Qingdao UniversityNingxia Road 308, Qingdao 266071, Shandong, China
| | - Yang Cheng
- College of Basic Medical Sciences, Dalian Medical UniversityDalian 116044, Liaoning, China
- Department of Pathology, Northwestern University Feinberg School of MedicineChicago, IL 60611, USA
| | - Emily Zhao
- Weinberg College of Arts and Sciences, Northwestern UniversityEvanston, IL 60201, USA
| | - Daniel J Brat
- Department of Pathology, Northwestern University Feinberg School of MedicineChicago, IL 60611, USA
| | - Zhaolin Sun
- College of Basic Medical Sciences, Dalian Medical UniversityDalian 116044, Liaoning, China
| | - Deyu Fang
- Department of Pathology, Northwestern University Feinberg School of MedicineChicago, IL 60611, USA
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12
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Liu J, Zhou T, Dong X, Guo Q, Zheng L, Wang X, Zhang N, Li D, Ren L, Yi F, Zhang Y, Li Z, Wang X, Deng C, Li C, Xu H, Guan Y, Li X, Yu Y, Guo W, Wang Z, Jiang B, Wu X, Bai N, Feng Y, Ma M, Kong Q, Wei J, Wang Z, Li H, Lu S, Cao L, Xiao Y, Song X, Wang Z, Xing C, Cao L. De-ubiquitination of SAMHD1 by USP7 promotes DNA damage repair to overcome oncogenic stress and affect chemotherapy sensitivity. Oncogene 2023:10.1038/s41388-023-02667-w. [PMID: 37081042 DOI: 10.1038/s41388-023-02667-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 03/02/2023] [Accepted: 03/13/2023] [Indexed: 04/22/2023]
Abstract
Oncogenic stress induces DNA damage repair (DDR) that permits escape from mitotic catastrophe and allows early precursor lesions during the evolution of cancer. SAMHD1, a dNTPase protecting cells from viral infections, has been recently found to participate in DNA damage repair process. However, its role in tumorigenesis remains largely unknown. Here, we show that SAMHD1 is up-regulated in early-stage human carcinoma tissues and cell lines under oxidative stress or genotoxic insults. We further demonstrate that de-ubiquitinating enzyme USP7 interacts with SAMHD1 and de-ubiquitinates it at lysine 421, thus stabilizing SAMHD1 protein expression for further interaction with CtIP for DDR, which promotes tumor cell survival under genotoxic stress. Furthermore, SAMHD1 levels positively correlates with USP7 in various human carcinomas, and is associated with an unfavorable survival outcome in patients who underwent chemotherapy. Moreover, USP7 inhibitor sensitizes tumor cells to chemotherapeutic agents by decreasing SAMHD1 in vitro and in vivo. These findings suggest that de-ubiquitination of SAMHD1 by USP7 promotes DDR to overcome oncogenic stress and affect chemotherapy sensitivity.
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Affiliation(s)
- Jingwei Liu
- The College of Basic Medical Science, China Medical University, Shenyang, Liaoning Province, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province, China
| | - Tingting Zhou
- The College of Basic Medical Science, China Medical University, Shenyang, Liaoning Province, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province, China
| | - Xiang Dong
- The College of Basic Medical Science, China Medical University, Shenyang, Liaoning Province, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province, China
| | - Qiqiang Guo
- The College of Basic Medical Science, China Medical University, Shenyang, Liaoning Province, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province, China
| | - Lixia Zheng
- The College of Basic Medical Science, China Medical University, Shenyang, Liaoning Province, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province, China
| | - Xiaoxun Wang
- The College of Basic Medical Science, China Medical University, Shenyang, Liaoning Province, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province, China
| | - Naijin Zhang
- The College of Basic Medical Science, China Medical University, Shenyang, Liaoning Province, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province, China
| | - Danni Li
- The College of Basic Medical Science, China Medical University, Shenyang, Liaoning Province, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province, China
| | - Ling Ren
- The College of Basic Medical Science, China Medical University, Shenyang, Liaoning Province, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province, China
| | - Fei Yi
- The College of Basic Medical Science, China Medical University, Shenyang, Liaoning Province, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province, China
| | - Ying Zhang
- The College of Basic Medical Science, China Medical University, Shenyang, Liaoning Province, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province, China
| | - Ziwei Li
- The College of Basic Medical Science, China Medical University, Shenyang, Liaoning Province, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province, China
| | - Xiwen Wang
- The College of Basic Medical Science, China Medical University, Shenyang, Liaoning Province, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province, China
| | - Chengsi Deng
- The College of Basic Medical Science, China Medical University, Shenyang, Liaoning Province, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province, China
| | - Chunlu Li
- The College of Basic Medical Science, China Medical University, Shenyang, Liaoning Province, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province, China
| | - Hongde Xu
- The College of Basic Medical Science, China Medical University, Shenyang, Liaoning Province, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province, China
| | - Yi Guan
- The College of Basic Medical Science, China Medical University, Shenyang, Liaoning Province, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province, China
| | - Xiaoman Li
- The College of Basic Medical Science, China Medical University, Shenyang, Liaoning Province, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province, China
| | - Yang Yu
- The College of Basic Medical Science, China Medical University, Shenyang, Liaoning Province, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province, China
| | - Wendong Guo
- The College of Basic Medical Science, China Medical University, Shenyang, Liaoning Province, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province, China
| | - Zhuo Wang
- The College of Basic Medical Science, China Medical University, Shenyang, Liaoning Province, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province, China
| | - Bo Jiang
- The College of Basic Medical Science, China Medical University, Shenyang, Liaoning Province, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province, China
| | - Xuan Wu
- The College of Basic Medical Science, China Medical University, Shenyang, Liaoning Province, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province, China
| | - Ning Bai
- The College of Basic Medical Science, China Medical University, Shenyang, Liaoning Province, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province, China
| | - Yanling Feng
- The College of Basic Medical Science, China Medical University, Shenyang, Liaoning Province, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province, China
| | - Mengtao Ma
- The College of Basic Medical Science, China Medical University, Shenyang, Liaoning Province, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province, China
| | - Qingquan Kong
- The College of Basic Medical Science, China Medical University, Shenyang, Liaoning Province, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province, China
| | - Jiayi Wei
- Department of Developmental Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, Liaoning Province, China
| | - Zhenshuang Wang
- Department of Anus and Intestine Surgery, First Affiliated Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Hao Li
- Department of Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Songming Lu
- The College of Basic Medical Science, China Medical University, Shenyang, Liaoning Province, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province, China
| | - Liangzi Cao
- The College of Basic Medical Science, China Medical University, Shenyang, Liaoning Province, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province, China
| | - Yutong Xiao
- The College of Basic Medical Science, China Medical University, Shenyang, Liaoning Province, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province, China
| | - Xiaoyu Song
- The College of Basic Medical Science, China Medical University, Shenyang, Liaoning Province, China.
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province, China.
| | - Zhenning Wang
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province, China.
| | - Chengzhong Xing
- Department of Anus and Intestine Surgery, First Affiliated Hospital of China Medical University, Shenyang, Liaoning Province, China.
| | - Liu Cao
- The College of Basic Medical Science, China Medical University, Shenyang, Liaoning Province, China.
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning Province, China.
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13
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Park HB, Min Y, Hwang S, Baek KH. Suppression of USP7 negatively regulates the stability of ETS proto-oncogene 2 protein. Biomed Pharmacother 2023; 162:114700. [PMID: 37062218 DOI: 10.1016/j.biopha.2023.114700] [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: 02/20/2023] [Revised: 04/08/2023] [Accepted: 04/10/2023] [Indexed: 04/18/2023] Open
Abstract
Ubiquitin-specific protease 7 (USP7) is one of the deubiquitinating enzymes (DUBs) that remove mono or polyubiquitin chains from target proteins. Depending on cancer types, USP7 has two opposing roles: oncogene or tumor suppressor. Moreover, it also known that USP7 functions in the cell cycle, apoptosis, DNA repair, chromatin remodeling, and epigenetic regulation through deubiquitination of several substrates including p53, mouse double minute 2 homolog (MDM2), Myc, and phosphatase and tensin homolog (PTEN). The [P/A/E]-X-X-S and K-X-X-X-K motifs of target proteins are necessary elements for the binding of USP7. In a previous study, we identified a novel substrate of USP7 through bioinformatics analysis using the binding motifs for USP7, and suggested that it can be an effective tool for finding new substrates for USP7. In the current study, gene ontology (GO) analysis revealed that putative target proteins having the [P/A/E]-X-X-S and K-X-X-K motifs are involved in transcriptional regulation. Moreover, through protein-protein interaction (PPI) analysis, we discovered that USP7 binds to the AVMS motif of ETS proto-oncogene 2 (ETS2) and deubiquitinates M1-, K11-, K27-, and K29-linked polyubiquitination of ETS2. Furthermore, we determined that suppression of USP7 decreases the protein stability of ETS2 and inhibits the transcriptional activity of ETS2 by disrupting the binding between the GGAA/T core motif and ETS2. Therefore, we propose that USP7 can be a novel target in cancers related to the dysregulation of ETS2.
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Affiliation(s)
- Hong-Beom Park
- Department of Biomedical Science, CHA University, Gyeonggi-Do 13488, Republic of Korea
| | - Yosuk Min
- Department of Biomedical Science, CHA University, Gyeonggi-Do 13488, Republic of Korea
| | - Sohyun Hwang
- Department of Biomedical Science, CHA University, Gyeonggi-Do 13488, Republic of Korea; Department of Pathology, CHA Bundang Medical Center, CHA University School of Medicine, Gyeonggi-Do 13496, Republic of Korea
| | - Kwang-Hyun Baek
- Department of Biomedical Science, CHA University, Gyeonggi-Do 13488, Republic of Korea.
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14
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Liu D, Li Q, Zang Y, Li X, Li Z, Zhang P, Feng C, Yang P, Cui J, Sun Y, Wei T, Su P, Zhao X, Yang H, Ding Y. USP1 modulates hepatocellular carcinoma progression via the Hippo/TAZ axis. Cell Death Dis 2023; 14:264. [PMID: 37041150 PMCID: PMC10090121 DOI: 10.1038/s41419-023-05777-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 03/21/2023] [Accepted: 03/24/2023] [Indexed: 04/13/2023]
Abstract
Hepatocellular carcinoma (HCC) is one of the most lethal malignancies worldwide. The Hippo signaling pathway has emerged as a significant suppressive pathway for hepatocellular carcinogenesis. The core components of the Hippo pathway constitute a kinase cascade, which inhibits the functional activation of YAP/TAZ. Interestingly, the overactivation of YAP/TAZ is commonly observed in hepatocellular carcinoma, although the inhibitory kinase cascade of the Hippo pathway is still functional. Recent studies have indicated that the ubiquitin‒proteasome system also plays important roles in modulating Hippo signaling activity. Our DUB (deubiquitinase) siRNA screen showed that USP1 is a critical regulator of Hippo signaling activity. Analysis of TCGA data demonstrated that USP1 expression is elevated in HCC and associated with poor survival in HCC patients. RNA sequencing analysis revealed that USP1 depletion affects Hippo signaling activity in HCC cell lines. Mechanistic assays revealed that USP1 is required for Hippo/TAZ axis activity and HCC progression. USP1 interacted with the WW domain of TAZ, which subsequently enhanced TAZ stability by suppressing K11-linked polyubiquitination of TAZ. Our study identifies a novel mechanism linking USP1 and TAZ in regulating the Hippo pathway and one possible therapeutic target for HCC.
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Affiliation(s)
- Dongyi Liu
- Department of General Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province, P. R. China
- Department of Anaesthesiology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province, P. R. China
| | - Quanhui Li
- Department of General Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province, P. R. China
| | - Yifeng Zang
- Department of General Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province, P. R. China
| | - Xin Li
- Xinxiang Key Laboratory of Tumor Migration and Invasion Precision Medicine, School of Laboratory Medicine, Xinxiang Medical University, Xinxiang, 453003, Henan Province, P. R. China
| | - Zhongbo Li
- Xinxiang Key Laboratory of Tumor Migration and Invasion Precision Medicine, School of Laboratory Medicine, Xinxiang Medical University, Xinxiang, 453003, Henan Province, P. R. China
| | - Peng Zhang
- Department of General Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province, P. R. China
| | - Chang Feng
- Department of Anaesthesiology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province, P. R. China
| | - Penghe Yang
- Xinxiang Key Laboratory of Tumor Migration and Invasion Precision Medicine, School of Laboratory Medicine, Xinxiang Medical University, Xinxiang, 453003, Henan Province, P. R. China
| | - Jiayao Cui
- Xinxiang Key Laboratory of Tumor Migration and Invasion Precision Medicine, School of Laboratory Medicine, Xinxiang Medical University, Xinxiang, 453003, Henan Province, P. R. China
| | - Yanan Sun
- Department of General Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province, P. R. China
| | - Tian Wei
- Department of General Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province, P. R. China
| | - Peng Su
- Department of Pathology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province, P. R. China.
| | - Xin Zhao
- Department of Anaesthesiology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province, P. R. China.
| | - Huijie Yang
- Xinxiang Key Laboratory of Tumor Migration and Invasion Precision Medicine, School of Laboratory Medicine, Xinxiang Medical University, Xinxiang, 453003, Henan Province, P. R. China.
| | - Yinlu Ding
- Department of General Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province, P. R. China.
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15
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Hou J, Li W, Zhang S, Tan D, Lv K, Zhu Y, Hou Y, Guo H, Jiang L. UHRF1 plays an oncogenic role in small cell lung cancer. Mol Carcinog 2023; 62:385-397. [PMID: 36537722 DOI: 10.1002/mc.23493] [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: 07/21/2022] [Revised: 11/17/2022] [Accepted: 11/29/2022] [Indexed: 12/24/2022]
Abstract
Small cell lung cancer (SCLC) is a malignant tumor characterized by aggressiveness and dismal prognosis. The specific role of ubiquitin-like PHD and RING finger domain (UHRF1), a frequently overexpressed cancer-promoting gene in various tumors, is poorly understood in SCLC. Herein, we explored the potential carcinogenic role of UHRF1 in SCLC. First, public databases were used to analyze the expression of UHRF1 in SCLC, and tissue specimens in our center were examined to confirm the results while clinical outcomes were collected to analyze its relationship with UHRF1. Then, UHRF1 knockdown and overexpression cell lines were established to evaluate the carcinogenic function of UHRF1 in vitro and in vivo. The mechanism of the biological consequences was determined by co-inmunoprecipitation. Moreover, we also analyzed the influence of UHRF1 on cisplatin (DDP) sensitivity of SCLC. The expression of UHRF1 was significantly higher in SCLC tissues than in normal tissues, and high levels of UHRF1 suggested a poor prognosis for SCLC. Mechanistically, UHRF1 promoted SCLC growth through yes-associated protein 1 (YAP1). Specifically, UHRF1 bound to YAP1 and inhibited YAP1 ubiquitin degradation, thus stabilizing the YAP1 protein in SCLC cells. UHRF1 downregulation enhanced DDP sensitivity in SCLC cells and was correlated with a favorable prognosis in patients with SCLC treated with platinum-based chemotherapy. UHRF1 plays an oncogenic role in SCLC by modulating YAP1. Therefore, UHRF1 could be used as a biomarker to predict the prognosis of SCLC patients and serve as a potential therapeutic target for SCLC patients.
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Affiliation(s)
- Jia Hou
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Wenyuan Li
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Shirong Zhang
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Deli Tan
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Kejia Lv
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Yue Zhu
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Yuzhu Hou
- Department of Pathogenic Microbiology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, ShaanXi, China
| | - Hui Guo
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China.,Cancer Center, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China.,Key Laboratory for Environment and Disease-related Genes of the Education Ministry, Xi'an Jiaotong University, Xi'an, Shaanxi, China.,Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Lili Jiang
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
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16
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Deng Y, Peng D, Xiao J, Zhao Y, Ding W, Yuan S, Sun L, Ding J, Zhou Z, Zhan M. Inhibition of the transcription factor ZNF281 by SUFU to suppress tumor cell migration. Cell Death Differ 2023; 30:702-715. [PMID: 36220888 PMCID: PMC9984498 DOI: 10.1038/s41418-022-01073-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 09/28/2022] [Accepted: 09/29/2022] [Indexed: 03/05/2023] Open
Abstract
Although the Hedgehog (Hh) pathway plays an evolutionarily conserved role from Drosophila to mammals, some divergences also exist. Loss of Sufu, an important component of the Hh pathway, does not lead to an obvious developmental defect in Drosophila. However, in mammals, loss of SUFU results in serious disorder, even various cancers. This divergence suggests that SUFU plays additional roles in mammalian cells, besides regulating the Hh pathway. Here, we identify that the transcription factor ZNF281 is a novel binding partner of SUFU. Intriguingly, the Drosophila genome does not encode any homologs of ZNF281. SUFU is able to suppress ZNF281-induced tumor cell migration and DNA damage repair by inhibiting ZNF281 activity. Mechanistically, SUFU binds ZNF281 to mask the nuclear localization signal of ZNF281, culminating in ZNF281 cytoplasmic retention. In addition, SUFU also hampers the interactions between ZNF281 and promoters of target genes. Finally, we show that SUFU is able to inhibit ZNF281-induced tumor cell migration using an in vivo model. Taken together, these results uncover a Hh-independent mechanism of SUFU exerting the anti-tumor role, in which SUFU suppresses tumor cell migration through antagonizing ZNF281. Therefore, this study provides a possible explanation for the functional divergence of SUFU in mammals and Drosophila.
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Affiliation(s)
- Yanran Deng
- Jiangsu Key Laboratory of Drug Screening, China Pharmaceutical University, 210009, Nanjing, China
| | - Dezhen Peng
- Jiangsu Key Laboratory of Drug Screening, China Pharmaceutical University, 210009, Nanjing, China
| | - Jing Xiao
- Center of Intervention radiology, Zhuhai Precision Medicine Center, Zhuhai People's Hospital, 519000, Zhuhai, China
| | - Yunhe Zhao
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, 271018, Tai'an, China
| | - Wenhao Ding
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, 271018, Tai'an, China
| | - Shengtao Yuan
- Jiangsu Key Laboratory of Drug Screening, China Pharmaceutical University, 210009, Nanjing, China
| | - Li Sun
- Jiangsu Key Laboratory of Drug Screening, China Pharmaceutical University, 210009, Nanjing, China
| | - Jian Ding
- Jiangsu Key Laboratory of Drug Screening, China Pharmaceutical University, 210009, Nanjing, China.
- Division of Antitumor Pharmacology, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 201203, Shanghai, China.
| | - Zizhang Zhou
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, 271018, Tai'an, China.
| | - Meixiao Zhan
- Center of Intervention radiology, Zhuhai Precision Medicine Center, Zhuhai People's Hospital, 519000, Zhuhai, China.
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17
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Yang H, Xue M, Su P, Zhou Y, Li X, Li Z, Xia Y, Zhang C, Fu M, Zheng X, Luo G, Wei T, Wang X, Ding Y, Zhu J, Zhuang T. RNF31 represses cell progression and immune evasion via YAP/PD-L1 suppression in triple negative breast Cancer. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2022; 41:364. [PMID: 36581998 PMCID: PMC9801641 DOI: 10.1186/s13046-022-02576-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 12/19/2022] [Indexed: 12/31/2022]
Abstract
BACKGROUND Recently genome-based studies revealed that the abnormality of Hippo signaling is pervasive in TNBC and played important role in cancer progression. RING finger protein 31 (RNF31) comes to RING family E3 ubiquitin ligase. Our previously published studies have revealed RNF31 is elevated in ER positive breast cancer via activating estrogen signaling and suppressing P53 pathway. METHODS We used several TNBC cell lines and xenograft models and performed immuno-blots, QPCR, in vivo studies to investigate the function of RNF31 in TNBC progression. RESULT Here, we demonstrate that RNF31 plays tumor suppressive function in triple negative breast cancer (TNBC). RNF31 depletion increased TNBC cell proliferation and migration in vitro and in vitro. RNF31 depletion in TNBC coupled with global genomic expression profiling indicated Hippo signaling could be the potential target for RNF31 to exert its function. Further data showed that RNF31 depletion could increase the level of YAP protein, and Hippo signaling target genes expression in several TNBC cell lines, while clinical data illustrated that RNF31 expression correlated with longer relapse-free survival in TNBC patients and reversely correlated with YAP protein level. The molecular biology assays implicated that RNF31 could associate with YAP protein, facilitate YAP poly-ubiquitination and degradation at YAP K76 sites. Interestingly, RNF31 could also repress PDL1 expression and sensitive TNBC immunotherapy via inhibiting Hippo/YAP/PDL1 axis. CONCLUSIONS Our study revealed the multi-faced function of RNF31 in different subtypes of breast malignancies, while activation RNF31 could be a plausible strategy for TNBC therapeutics.
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Affiliation(s)
- Huijie Yang
- grid.412990.70000 0004 1808 322XXinxiang Key Laboratory of Tumor Migration and Invasion Precision Medicine, School of Laboratory Medicine, Xinxiang Medical University, Xinxiang, 453003 Henan Province People’s Republic of China
| | - Min Xue
- grid.440265.10000 0004 6761 3768Molecular Biology Laboratory, First People’s Hospital of Shangqiu, Shangqiu, City, 476000 Henan Province People’s Republic of China
| | - Peng Su
- Department of Pathology, Shandong University Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan City, Shandong Province People’s Republic of China
| | - Yan Zhou
- grid.27255.370000 0004 1761 1174Department of General Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province 250033 People’s Republic of China
| | - Xin Li
- grid.412990.70000 0004 1808 322XXinxiang Key Laboratory of Tumor Migration and Invasion Precision Medicine, School of Laboratory Medicine, Xinxiang Medical University, Xinxiang, 453003 Henan Province People’s Republic of China
| | - Zhongbo Li
- grid.412990.70000 0004 1808 322XXinxiang Key Laboratory of Tumor Migration and Invasion Precision Medicine, School of Laboratory Medicine, Xinxiang Medical University, Xinxiang, 453003 Henan Province People’s Republic of China
| | - Yan Xia
- grid.412990.70000 0004 1808 322XXinxiang Key Laboratory of Tumor Migration and Invasion Precision Medicine, School of Laboratory Medicine, Xinxiang Medical University, Xinxiang, 453003 Henan Province People’s Republic of China
| | - Chenmiao Zhang
- grid.412990.70000 0004 1808 322XXinxiang Key Laboratory of Tumor Migration and Invasion Precision Medicine, School of Laboratory Medicine, Xinxiang Medical University, Xinxiang, 453003 Henan Province People’s Republic of China
| | - Mingxi Fu
- grid.412990.70000 0004 1808 322XXinxiang Key Laboratory of Tumor Migration and Invasion Precision Medicine, School of Laboratory Medicine, Xinxiang Medical University, Xinxiang, 453003 Henan Province People’s Republic of China
| | - Xiuxia Zheng
- grid.440265.10000 0004 6761 3768Molecular Biology Laboratory, First People’s Hospital of Shangqiu, Shangqiu, City, 476000 Henan Province People’s Republic of China
| | - Guosheng Luo
- grid.412990.70000 0004 1808 322XThe Affiliated people’s Hospital of Xinxiang Medical University, Xinxiang, 453003 Henan Province People’s Republic of China
| | - Tian Wei
- grid.27255.370000 0004 1761 1174Department of General Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province 250033 People’s Republic of China
| | - Xinxing Wang
- grid.412633.10000 0004 1799 0733Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province 450052 People’s Republic of China
| | - Yinlu Ding
- grid.27255.370000 0004 1761 1174Department of General Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province 250033 People’s Republic of China
| | - Jian Zhu
- grid.27255.370000 0004 1761 1174Department of General Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province 250033 People’s Republic of China
| | - Ting Zhuang
- grid.412990.70000 0004 1808 322XXinxiang Key Laboratory of Tumor Migration and Invasion Precision Medicine, School of Laboratory Medicine, Xinxiang Medical University, Xinxiang, 453003 Henan Province People’s Republic of China ,grid.412990.70000 0004 1808 322XThe Affiliated people’s Hospital of Xinxiang Medical University, Xinxiang, 453003 Henan Province People’s Republic of China
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18
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Mranda GM, Xiang ZP, Liu JJ, Wei T, Ding Y. Advances in prognostic and therapeutic targets for hepatocellular carcinoma and intrahepatic cholangiocarcinoma: The hippo signaling pathway. Front Oncol 2022; 12:937957. [PMID: 36033517 PMCID: PMC9411807 DOI: 10.3389/fonc.2022.937957] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 07/13/2022] [Indexed: 01/07/2023] Open
Abstract
Primary liver cancer is the sixth most frequently diagnosed cancer worldwide and the third leading cause of cancer-related death. The majority of the primary liver cancer cases are hepatocellular carcinoma and intrahepatic cholangiocarcinoma. Worldwide, there is an increasing incidence of primary liver cancer cases due to multiple risk factors ranging from parasites and viruses to metabolic diseases and lifestyles. Often, patients are diagnosed at advanced stages, depriving them of surgical curability benefits. Moreover, the efficacy of the available chemotherapeutics is limited in advanced stages. Furthermore, tumor metastases and recurrence make primary liver cancer management exceptionally challenging. Thus, exploring the molecular mechanisms for the development and progression of primary liver cancer is critical in improving diagnostic, treatment, prognostication, and surveillance modalities. These mechanisms facilitate the discovery of specific targets that are critical for novel and more efficient treatments. Consequently, the Hippo signaling pathway executing a pivotal role in organogenesis, hemostasis, and regeneration of tissues, regulates liver cells proliferation, and apoptosis. Cell polarity or adhesion molecules and cellular metabolic status are some of the biological activators of the pathway. Thus, understanding the mechanisms exhibited by the Hippo pathway is critical to the development of novel targeted therapies. This study reviews the advances in identifying therapeutic targets and prognostic markers of the Hippo pathway for primary liver cancer in the past six years.
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19
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USP7 regulates the ERK1/2 signaling pathway through deubiquitinating Raf-1 in lung adenocarcinoma. Cell Death Dis 2022; 13:698. [PMID: 35948545 PMCID: PMC9365811 DOI: 10.1038/s41419-022-05136-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 07/25/2022] [Accepted: 07/26/2022] [Indexed: 01/21/2023]
Abstract
Ubiquitin-specific protease 7 (USP7) is one of the deubiquitinating enzymes (DUBs) in the ubiquitin-specific protease (USP) family. It is a key regulator of numerous cellular functions including immune response, cell cycle, DNA damage and repair, epigenetics, and several signaling pathways. USP7 acts by removing ubiquitin from the substrate proteins. USP7 also binds to a specific binding motif of substrate proteins having the [P/A/E]-X-X-S or K-X-X-X-K protein sequences. To date, numerous substrate proteins of USP7 have been identified, but no studies have been conducted using the binding motif that USP7 binds. In the current study, we analyzed putative substrate proteins of USP7 through the [P/A/E]-X-X-S and K-X-X-X-K binding motifs using bioinformatics tools, and confirmed that Raf-1 is one of the substrates for USP7. USP7 binds to the Pro-Val-Asp-Ser (PVDS) motif of the conserved region 2 (CR2) which contains phosphorylation sites of Raf-1 and decreased M1-, K6-, K11-, K27-, K33-, and K48-linked polyubiquitination of Raf-1. We further identified that the DUB activity of USP7 decreases the threonine phosphorylation level of Raf-1 and inhibits signaling transduction through Raf activation. This regulatory mechanism inhibits the activation of the ERK1/2 signaling pathway, thereby inhibiting the G2/M transition and the cell proliferation of lung adenocarcinoma cells. In summary, our results indicate that USP7 deubiquitinates Raf-1 and is a new regulator of the ERK1/2 signaling pathway in lung adenocarcinoma.
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20
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The deubiquitinase USP7 promotes HNSCC progression via deubiquitinating and stabilizing TAZ. Cell Death Dis 2022; 13:677. [PMID: 35931679 PMCID: PMC9356134 DOI: 10.1038/s41419-022-05113-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 07/13/2022] [Accepted: 07/18/2022] [Indexed: 01/21/2023]
Abstract
Dysregulated abundance, location and transcriptional output of Hippo signaling effector TAZ have been increasingly linked to human cancers including head neck squamous cell carcinoma (HNSCC). TAZ is subjected to ubiquitination and degradation mediated by E3 ligase β-TRCP. However, the deubiquitinating enzymes and mechanisms responsible for its protein stability remain underexplored. Here, we exploited customized deubiquitinases siRNA and cDNA library screen strategies and identified USP7 as a bona fide TAZ deubiquitinase in HNSCC. USP7 promoted cell proliferation, migration, invasion in vitro and tumor growth by stabilizing TAZ. Mechanistically, USP7 interacted with, deubiquitinated and stabilized TAZ by selectively removing its K48-linked ubiquitination chain independent of canonical Hippo kinase cascade. USP7 potently antagonized β-TRCP-mediated ubiquitin-proteasomal degradation of TAZ and enhanced its nuclear retention and transcriptional output. Importantly, overexpression of USP7 correlated with TAZ upregulation, tumor aggressiveness and unfavorable prognosis in HNSCC patients. Pharmacological inhibition of USP7 significantly suppressed tumor growth in both xenograft and PDX models. Collectively, these findings identify USP7 as an essential regulator of TAZ and define USP7-TAZ signaling axis as a novel biomarker and potential therapeutic target for HNSCC.
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21
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Yin X, Liu Q, Liu F, Tian X, Yan T, Han J, Jiang S. Emerging Roles of Non-proteolytic Ubiquitination in Tumorigenesis. Front Cell Dev Biol 2022; 10:944460. [PMID: 35874839 PMCID: PMC9298949 DOI: 10.3389/fcell.2022.944460] [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: 05/15/2022] [Accepted: 06/15/2022] [Indexed: 12/13/2022] Open
Abstract
Ubiquitination is a critical type of protein post-translational modification playing an essential role in many cellular processes. To date, more than eight types of ubiquitination exist, all of which are involved in distinct cellular processes based on their structural differences. Studies have indicated that activation of the ubiquitination pathway is tightly connected with inflammation-related diseases as well as cancer, especially in the non-proteolytic canonical pathway, highlighting the vital roles of ubiquitination in metabolic programming. Studies relating degradable ubiquitination through lys48 or lys11-linked pathways to cellular signaling have been well-characterized. However, emerging evidence shows that non-degradable ubiquitination (linked to lys6, lys27, lys29, lys33, lys63, and Met1) remains to be defined. In this review, we summarize the non-proteolytic ubiquitination involved in tumorigenesis and related signaling pathways, with the aim of providing a reference for future exploration of ubiquitination and the potential targets for cancer therapies.
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Affiliation(s)
- Xiu Yin
- Clinical Medical Laboratory Center, Jining First People's Hospital, Jining Medical University, Jining, China
| | - Qingbin Liu
- Clinical Medical Laboratory Center, Jining First People's Hospital, Jining Medical University, Jining, China
| | - Fen Liu
- Clinical Medical Laboratory Center, Jining First People's Hospital, Jining Medical University, Jining, China
| | - Xinchen Tian
- Clinical Medical Laboratory Center, Jining First People's Hospital, Jining Medical University, Jining, China.,Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Tinghao Yan
- Clinical Medical Laboratory Center, Jining First People's Hospital, Jining Medical University, Jining, China.,Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Jie Han
- Department of Thyroid and Breast Surgery, Jining First People's Hospital, Jining Medical University, Jining, China
| | - Shulong Jiang
- Clinical Medical Laboratory Center, Jining First People's Hospital, Jining Medical University, Jining, China
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22
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Wu H, Wei M, Li Y, Ma Q, Zhang H. Research Progress on the Regulation Mechanism of Key Signal Pathways Affecting the Prognosis of Glioma. Front Mol Neurosci 2022; 15. [DOI: https:/doi.org/10.3389/fnmol.2022.910543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2023] Open
Abstract
As is known to all, glioma, a global difficult problem, has a high malignant degree, high recurrence rate and poor prognosis. We analyzed and summarized signal pathway of the Hippo/YAP, PI3K/AKT/mTOR, miRNA, WNT/β-catenin, Notch, Hedgehog, TGF-β, TCS/mTORC1 signal pathway, JAK/STAT signal pathway, MAPK signaling pathway, the relationship between BBB and signal pathways and the mechanism of key enzymes in glioma. It is concluded that Yap1 inhibitor may become an effective target for the treatment of glioma in the near future through efforts of generation after generation. Inhibiting PI3K/Akt/mTOR, Shh, Wnt/β-Catenin, and HIF-1α can reduce the migration ability and drug resistance of tumor cells to improve the prognosis of glioma. The analysis shows that Notch1 and Sox2 have a positive feedback regulation mechanism, and Notch4 predicts the malignant degree of glioma. In this way, notch cannot only be treated for glioma stem cells in clinic, but also be used as an evaluation index to evaluate the prognosis, and provide an exploratory attempt for the direction of glioma treatment. MiRNA plays an important role in diagnosis, and in the treatment of glioma, VPS25, KCNQ1OT1, KB-1460A1.5, and CKAP4 are promising prognostic indicators and a potential therapeutic targets for glioma, meanwhile, Rheb is also a potent activator of Signaling cross-talk etc. It is believed that these studies will help us to have a deeper understanding of glioma, so that we will find new and better treatment schemes to gradually conquer the problem of glioma.
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23
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Wu H, Wei M, Li Y, Ma Q, Zhang H. Research Progress on the Regulation Mechanism of Key Signal Pathways Affecting the Prognosis of Glioma. Front Mol Neurosci 2022; 15:910543. [PMID: 35935338 PMCID: PMC9354928 DOI: 10.3389/fnmol.2022.910543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 05/30/2022] [Indexed: 11/17/2022] Open
Abstract
As is known to all, glioma, a global difficult problem, has a high malignant degree, high recurrence rate and poor prognosis. We analyzed and summarized signal pathway of the Hippo/YAP, PI3K/AKT/mTOR, miRNA, WNT/β-catenin, Notch, Hedgehog, TGF-β, TCS/mTORC1 signal pathway, JAK/STAT signal pathway, MAPK signaling pathway, the relationship between BBB and signal pathways and the mechanism of key enzymes in glioma. It is concluded that Yap1 inhibitor may become an effective target for the treatment of glioma in the near future through efforts of generation after generation. Inhibiting PI3K/Akt/mTOR, Shh, Wnt/β-Catenin, and HIF-1α can reduce the migration ability and drug resistance of tumor cells to improve the prognosis of glioma. The analysis shows that Notch1 and Sox2 have a positive feedback regulation mechanism, and Notch4 predicts the malignant degree of glioma. In this way, notch cannot only be treated for glioma stem cells in clinic, but also be used as an evaluation index to evaluate the prognosis, and provide an exploratory attempt for the direction of glioma treatment. MiRNA plays an important role in diagnosis, and in the treatment of glioma, VPS25, KCNQ1OT1, KB-1460A1.5, and CKAP4 are promising prognostic indicators and a potential therapeutic targets for glioma, meanwhile, Rheb is also a potent activator of Signaling cross-talk etc. It is believed that these studies will help us to have a deeper understanding of glioma, so that we will find new and better treatment schemes to gradually conquer the problem of glioma.
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Affiliation(s)
- Hao Wu
- Graduate School of Dalian Medical University, Dalian, China
- Department of Neurosurgery, The Yangzhou School of Clinical Medicine of Dalian Medical University, Dalian, China
| | - Min Wei
- Graduate School of Dalian Medical University, Dalian, China
- Department of Neurosurgery, The Yangzhou School of Clinical Medicine of Dalian Medical University, Dalian, China
| | - Yuping Li
- Department of Neurosurgery, The Yangzhou School of Clinical Medicine of Dalian Medical University, Dalian, China
| | - Qiang Ma
- Department of Neurosurgery, The Yangzhou School of Clinical Medicine of Dalian Medical University, Dalian, China
| | - Hengzhu Zhang
- Graduate School of Dalian Medical University, Dalian, China
- Department of Neurosurgery, The Yangzhou School of Clinical Medicine of Dalian Medical University, Dalian, China
- *Correspondence: Hengzhu Zhang,
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24
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Zhao J, Guo J, Wang Y, Ma Q, Shi Y, Cheng F, Lu Q, Fu W, Ouyang G, Zhang J, Xu Q, Hu X. Research Progress of DUB Enzyme in Hepatocellular Carcinoma. Front Oncol 2022; 12:920287. [PMID: 35875077 PMCID: PMC9303014 DOI: 10.3389/fonc.2022.920287] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 05/24/2022] [Indexed: 11/13/2022] Open
Abstract
According to GLOBOCAN 2021 cancer incidence and mortality statistics compiled by the International Agency for Research on Cancer, hepatocellular carcinoma (HCC) is the most common malignancy in the human liver and one of the leading causes of cancer death worldwide. Although there have been great advances in the treatment of HCC, such as regofenib, sorafenib, and lomvatinib, which have been developed and approved for the clinical treatment of advanced or metastatic HCC. However, they only prolong survival by a few months, and patients with advanced liver cancer are susceptible to tumor invasion metastasis and drug resistance. Ubiquitination modification is a type of post-translational modification of proteins. It can affect the physiological activity of cells by regulating the localization, stability and activity of proteins, such as: gene transcription, DNA damage signaling and other pathways. The reversible process of ubiquitination is called de-ubiquitination: it is the process of re-releasing ubiquitinated substrates with the participation of de-ubiquitinases (DUBs) and other active substances. There is growing evidence that many dysregulations of DUBs are associated with tumorigenesis. Although dysregulation of deuquitinase function is often found in HCC and other cancers, The mechanisms of action of many DUBs in HCC have not been elucidated. In this review, we focused on several deubiquitinases (DUBs) associated with hepatocellular carcinoma, including their structure, function, and relationship to hepatocellular carcinoma. hepatocellular carcinoma was highlighted, as well as the latest research reports. Among them, we focus on the USP family and OTU family which are more studied in the HCC. In addition, we discussed the prospects and significance of targeting DUBs as a new strategy for the treatment of hepatocellular carcinoma. It also briefly summarizes the research progress of some DUB-related small molecule inhibitors and their clinical application significance as a treatment for HCC in the future.
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Affiliation(s)
- Jie Zhao
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, China
- Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, China
| | - Jinhui Guo
- Qingdao Medical College, Qingdao University, Qingdao, China
| | - Yanan Wang
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, China
| | - Qiancheng Ma
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, China
| | - Yu Shi
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, China
| | - Feng Cheng
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, China
| | - Qiliang Lu
- Qingdao Medical College, Qingdao University, Qingdao, China
| | - Wen Fu
- Qingdao Medical College, Qingdao University, Qingdao, China
| | | | - Ji Zhang
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, China
| | - Qiuran Xu
- Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, China
- *Correspondence: Xiaoge Hu, ; Qiuran Xu,
| | - Xiaoge Hu
- Department of Hepatobiliary and Pancreatic Surgery, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical CollegeHangzhou, China
- 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, China
- *Correspondence: Xiaoge Hu, ; Qiuran Xu,
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25
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USP53 plays an antitumor role in hepatocellular carcinoma through deubiquitination of cytochrome c. Oncogenesis 2022; 11:31. [PMID: 35654790 PMCID: PMC9163188 DOI: 10.1038/s41389-022-00404-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 05/06/2022] [Accepted: 05/10/2022] [Indexed: 11/08/2022] Open
Abstract
Despite of advances in treatment options, hepatocellular carcinoma (HCC) remains nearly incurable and has been recognized as the third leading cause of cancer-related deaths worldwide. As a deubiquitinating enzyme, the antitumor effect of ubiquitin-specific peptidase 53 (USP53) has been demonstrated on few malignancies. In this study, we investigated the potential antitumor role of USP53 in HCC. The results showed that USP53 was downregulated in HCC tissues as well as in HCC cell lines using both in silico data as well as patient samples. Furthermore, the ectopic expression of USP53 inhibited the proliferation, migration and invasion, and induced the apoptosis of HCC cells. Co-immunoprecipitation (CO-IP) assay and mass spectrometry (MS) combined with the gene set enrichment analysis (GSEA) identified cytochrome c (CYCS) as an interacting partner of USP53. USP53 overexpression increased the stability of CYCS in HCC cells following cycloheximide treatment. Finally, the overexpression of CYCS compensated for the decreased apoptotic rates in cells with USP53 knocked down, suggesting that USP53 induced the apoptosis in HCC cells through the deubiquitination of CYCS. To summarize, we identified USP53 as a tumor suppressor as well as a therapeutic target in HCC, providing novel insights into its pivotal role in cell apoptosis.
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26
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Chen Z, Ma Y, Guo Z, Song D, Chen Z, Sun M. Ubiquitin-specific protease 1 acts as an oncogene and promotes lenvatinib efficacy in hepatocellular carcinoma by stabilizing c-kit. Ann Hepatol 2022; 27:100669. [PMID: 35045360 DOI: 10.1016/j.aohep.2022.100669] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 01/12/2022] [Accepted: 01/12/2022] [Indexed: 02/04/2023]
Abstract
INTRODUCTION AND OBJECTIVES Ubiquitin-specific proteases (USPs) act as proto-oncogenes or tumor suppressors in a wide variety of cancers. In this study, we intended to explore the role of USP1 in hepatocellular carcinoma (HCC). MATERIALS AND METHODS The clinical significance of USP1 in HCC was analyzed based on The Cancer Genome Atlas (TCGA) data and immunohistochemical staining. siRNAs and lentivirus were used to knock down and overexpress indicated genes, respectively. qRT-PCR and immunoblotting were performed to examine mRNA and protein expression, respectively. CCK8, colony formation and PI/Annexin V-APC staining were performed to examine cellular function. Immunoprecipitation, coomassie blue staining, mass spectrum and immunoblotting were conducted to evaluate the interaction between USP1 and c-kit. RESULTS USP1 was over-expressed in HCC patients. Patients with high expression of USP1 had shorter overall and disease free survival than those with low expression of USP1. Functional results showed that USP1 was critical for HCC cell growth and proliferation. Immunoprecipitation and immunoblotting results suggested that USP1 interacted with c-kit and promoted the stability of c-kit, which is an important target of lenvatinib in HCC. Knockdown of c-kit reversed the oncogenic function of USP1 on HCC cell growth. Lastly, USP1 upregulation conferred higher sensitivity of HCC cells to lenvatinib treatment. CONCLUSIONS Our study demonstrated that USP1 acted as an oncogene in HCC. It also promoted lenvatinib efficacy by stabilizing c-kit.
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Affiliation(s)
- Zhangbin Chen
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Kunming Medical University, Kunming City, Yunnan Province, China
| | - Yifei Ma
- Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
| | - Zhitang Guo
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Kunming Medical University, Kunming City, Yunnan Province, China
| | | | - Zili Chen
- Department of Hepatobiliary Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China.
| | - Min Sun
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Kunming Medical University, Kunming City, Yunnan Province, China.
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27
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Zeng M, Zhang X, Xing W, Wang Q, Liang G, He Z. Cigarette smoke extract mediates cell premature senescence in chronic obstructive pulmonary disease patients by up-regulating USP7 to activate p300-p53/p21 pathway. Toxicol Lett 2022; 359:31-45. [PMID: 35114313 DOI: 10.1016/j.toxlet.2022.01.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 01/28/2022] [Accepted: 01/29/2022] [Indexed: 01/10/2023]
Abstract
OBJECTIVES Tobacco hazard is one of the most severe public health issues in the world. It is believed that smoking is the most important factor leading to chronic obstructive pulmonary disease (COPD). Endothelial progenitor cells (EPCs) originate from the bone marrow and can effectively repair vascular endothelial damage and improve vascular endothelial function. Current studies suggest that EPCs senescence and EPCs depletion exist in smoking-related COPD, but the molecular mechanism remains unclear. METHODS Co-immunoprecipitation was used to detect the interaction between USP7 and p300. EPCs from smoking COPD patients were isolated, and the expressions of USP7 and p300 were detected by RT-PCR and Western Blot. Different concentrations of cigarette smoke extract (CSE) and USP7 or p300 inhibitors were used to treat EPCs, then the expression of p53, p53 target genes and aging-related genes were detected. Cell Counting Kit - 8 (CCK8) was used to detect cell proliferation, flow cytometry was used to detect cell cycle distribution, β-galactosidase (β-gal) staining and Lamp1 immunofluorescence was used to detect the proportion of aging cells. COPD mouse models were used to confirm the molecular mechanism. RESULTS USP7 and p300 interacted with each other, and USP7 affected the protein stability of p300 by regulating the ubiquitination of p300. There existed high expressions of USP7 and p300 proteins in EPCs of smoking COPD patients and COPD mouse model. CSE promoted the high expressions of USP7 and p300 in EPCs. Further studies showed that CSE mediated the USP7/p300-dependent high expression of p53 and activated the expression of p53 target genes especially p21. Activation of p53 - p21 pathway finally inhibited cell activity, led to cell cycle arrest and premature senescence of EPCs. CONCLUSION CSE mediated up-regulation of USP7 and p300 activated p53 - p21 pathway was a molecular mechanism that might lead to COPD.
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Affiliation(s)
- Menghao Zeng
- Department of Critical Care Medicine, the Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xuefeng Zhang
- Department of Critical Care Medicine, the Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Wei Xing
- Department of Critical Care Medicine, the Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qianlu Wang
- Department of Critical Care Medicine, the Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Guibin Liang
- Department of Critical Care Medicine, the Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zhihui He
- Department of Critical Care Medicine, the Third Xiangya Hospital, Central South University, Changsha, Hunan, China.
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Ding X, Li Z, Peng K, Zou R, Wu C, Lin G, Li W, Xue L. Snail regulates Hippo signalling-mediated cell proliferation and tissue growth in Drosophila. Open Biol 2022; 12:210357. [PMID: 35259952 PMCID: PMC8905163 DOI: 10.1098/rsob.210357] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Snail (Sna) plays a pivotal role in epithelia-mesenchymal transition and cancer metastasis, yet its functions in normal tissue development remain elusive. Here, using Drosophila as a model organism, we identified Sna as an essential regulator of Hippo signalling-mediated cell proliferation and tissue growth. First, Sna is necessary and sufficient for impaired Hippo signalling-induced cell proliferation and tissue overgrowth. Second, Sna is necessary and sufficient for the expression of Hippo pathway target genes. Third, genetic epistasis data indicate Sna acts downstream of Yki in the Hippo signalling. Finally, Sna is physiologically required for tissue growth in normal development. Mechanistically, Yki activates the transcription of sna, whose protein product binds to Scalloped (Sd) and promotes Sd-dependent cell proliferation. Thus, this study uncovered a previously unknown physiological function of Sna in normal tissue development and revealed the underlying mechanism by which Sna modulates Hippo signalling-mediated cell proliferation and tissue growth.
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Affiliation(s)
- Xiang Ding
- Institute of Intervention Vessel, Shanghai 10th People's Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Science and Technology, Tongji University, Shanghai, People's Republic of China
| | - Zhuojie Li
- Institute of Intervention Vessel, Shanghai 10th People's Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Science and Technology, Tongji University, Shanghai, People's Republic of China
| | - Kai Peng
- Institute of Intervention Vessel, Shanghai 10th People's Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Science and Technology, Tongji University, Shanghai, People's Republic of China
| | - Rui Zou
- Institute of Intervention Vessel, Shanghai 10th People's Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Science and Technology, Tongji University, Shanghai, People's Republic of China
| | - Chenxi Wu
- Institute of Intervention Vessel, Shanghai 10th People's Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Science and Technology, Tongji University, Shanghai, People's Republic of China,College of Traditional Chinese Medicine, North China University of Science and Technology, Tangshan, Hebei, People's Republic of China
| | - Gufa Lin
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of Ministry of Education, Orthopaedic Department of Tongji Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, People's Republic of China
| | - Wenzhe Li
- Institute of Intervention Vessel, Shanghai 10th People's Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Science and Technology, Tongji University, Shanghai, People's Republic of China
| | - Lei Xue
- Institute of Intervention Vessel, Shanghai 10th People's Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Science and Technology, Tongji University, Shanghai, People's Republic of China,Zhuhai Precision Medical Center, Zhuhai People's Hospital, Zhuhai Hospital Affiliated with Jinan University, Zhuhai, Guangdong, People's Republic of China,National Clinical Research Center for Interventional Medicine, Shanghai 10th People's Hospital, Tongji University, Shanghai, People's Republic of China
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29
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Zhao Y, Peng D, Liu Y, Zhang Q, Liu B, Deng Y, Ding W, Zhou Z, Liu Q. Usp8 promotes tumor cell migration through activating the JNK pathway. Cell Death Dis 2022; 13:286. [PMID: 35361778 PMCID: PMC8971431 DOI: 10.1038/s41419-022-04749-1] [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: 08/26/2021] [Revised: 03/07/2022] [Accepted: 03/18/2022] [Indexed: 11/23/2022]
Abstract
Tumor metastasis is the most cause of high mortality for cancer patients. Identification of novel factors that modulate tumor cell migration is of great significance for therapeutic strategies. Here, we find that the ubiquitin-specific protease 8 (Usp8) promotes tumor cell migration through activating the c-Jun N-terminal kinase (JNK) pathway. Genetic epistasis analyses uncover Usp8 acts upstream of Tak1 to control the JNK pathway. Consistently, biochemical results reveal that Usp8 binds Tak1 to remove ubiquitin modification from Tak1, leading to its stabilization. In addition, human USP8 also triggers tumor cell migration and activates the JNK pathway. Finally, we show that knockdown of USP8 in human breast cancer cells suppresses cell migration. Taken together, our findings demonstrate that a conserved Usp8-Tak1-JNK axis promotes tumor cell migration, and providing USP8 as a potential therapeutic target for cancer treatment.
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30
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Ouyang S, Zeng Z, Liu Z, Zhang Z, Sun J, Wang X, Ma M, Ye X, Yu J, Kang W. OTUB2 regulates KRT80 stability via deubiquitination and promotes tumour proliferation in gastric cancer. Cell Death Discov 2022; 8:45. [PMID: 35110531 PMCID: PMC8810928 DOI: 10.1038/s41420-022-00839-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 12/30/2021] [Accepted: 01/13/2022] [Indexed: 12/09/2022] Open
Abstract
OTUB2 is a deubiquitinating enzyme that contributes to tumor progression. However, the expression of OTUB2 and its prognostic importance in gastric cancer remain unclear. The expression of OTUB2 and KRT80 in GC tissues was investigated using western blotting, qRT-PCR, multiple immunofluorescence staining, and immunohistochemistry. For survival studies, Kaplan-Meier analysis with the log-rank test was used. The role of OTUB2 during GC proliferation was investigated using in vivo and in vitro assays. OTUB2 was found to be overexpressed in GC tissues and to act as an oncogene, which was linked to patients' poor prognosis. Knockdown of OTUB2 inhibited the proliferative capacity of GC cells in vitro and in vivo, although the proliferative capacity was restored upon re-supplementation with KRT80. OTUB2 mechanically stabilized KRT80 by deubiquitinating and shielding it from proteasome-mediated degradation through Lys-48 and Lys-63. Furthermore, by activating the Akt signaling pathway, OTUB2 and KRT80 facilitated GC proliferation. In summary, OTUB2 regulates KRT80 stability via deubiquitination promoting proliferation in GC via activation of the Akt signaling pathway, implying that OTUB2 could be a novel prognostic marker.
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Affiliation(s)
- Siwen Ouyang
- Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Department of General Surgery, Peking Union Medical College Hospital, Beijing, China
| | - Ziyang Zeng
- Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Department of General Surgery, Peking Union Medical College Hospital, Beijing, China
| | - Zhen Liu
- Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Department of General Surgery, Peking Union Medical College Hospital, Beijing, China
| | - Zimu Zhang
- Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Department of General Surgery, Peking Union Medical College Hospital, Beijing, China
| | - Juan Sun
- Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Department of General Surgery, Peking Union Medical College Hospital, Beijing, China
| | - Xianze Wang
- Department of General Surgery, Peking Union Medical College Hospital, Beijing, China
| | - Mingwei Ma
- Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Department of General Surgery, Peking Union Medical College Hospital, Beijing, China
| | - Xin Ye
- Department of General Surgery, Peking Union Medical College Hospital, Beijing, China
| | - Jianchun Yu
- Department of General Surgery, Peking Union Medical College Hospital, Beijing, China
| | - Weiming Kang
- Department of General Surgery, Peking Union Medical College Hospital, Beijing, China.
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31
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Wu HT, Lin YT, Chew SH, Wu KJ. Organ defects of the Usp7 mutant mouse strain indicate the essential role of K63-polyubiquitinated Usp7 in organ formation. Biomed J 2022; 46:122-133. [PMID: 35183794 PMCID: PMC10104958 DOI: 10.1016/j.bj.2022.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 01/12/2022] [Accepted: 02/09/2022] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND K63-linked polyubiquitination of proteins have nonproteolytic functions and regulate the activity of many signal transduction pathways. USP7, a HIF1α deubiquitinase, undergoes K63-linked polyubiquitination under hypoxia. K63-polyubiquitinated USP7 serves as a scaffold to anchor HIF1α, CREBBP, the mediator complex, and the super elongation complex to enhance HIF1α-induced gene transcription. However, the physiological role of K63-polyubiquitinated USP7 remains unknown. METHODS Using a Usp7K444R point mutation knock-in mouse strain, we performed immunohistochemistry and standard molecular biological methods to examine the organ defects of liver and kidney in this knock-in mouse strain. Mechanistic studies were performed by using deubiquitination, immunoprecipitation, and quantitative immunoprecipitations (qChIP) assays. RESULTS We observed multiple organ defects, including decreased liver and muscle weight, decreased tibia/fibula length, liver glycogen storage defect, and polycystic kidneys. The underlying mechanisms include the regulation of protein stability and/or modulation of transcriptional activation of several key factors, leading to decreased protein levels of Prr5l, Hnf4α, Cebpα, and Hnf1β. Repression of these crucial factors leads to the organ defects described above. CONCLUSIONS K63-polyubiquitinated Usp7 plays an essential role in the development of multiple organs and illustrates the importance of the process of K63-linked polyubiquitination in regulating critical protein functions.
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Affiliation(s)
- Han-Tsang Wu
- Department of Cell and Tissue Engineering, Changhua Christian Hospital, Changhua, Taiwan
| | - Yueh-Te Lin
- Cancer Genome Research Center, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | - Shan Hwu Chew
- Cancer Research Malaysia, Outpatient Centre, Sime Darby Medical Centre, Subang Jaya, Selangor, Malaysia
| | - Kou-Juey Wu
- Cancer Genome Research Center, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan; Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan; Inst. of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan.
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32
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Zhou L, Ouyang T, Li M, Hong T, Mhs A, Meng W, Zhang N. Ubiquitin-Specific Peptidase 7: A Novel Deubiquitinase That Regulates Protein Homeostasis and Cancers. Front Oncol 2021; 11:784672. [PMID: 34869041 PMCID: PMC8640129 DOI: 10.3389/fonc.2021.784672] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 10/26/2021] [Indexed: 12/23/2022] Open
Abstract
Ubiquitin-Specific Peptidase 7 (USP7), or herpes virus-associated protease (HAUSP), is the largest family of the deubiquitinating enzymes (DUBs). Recent studies have shown that USP7 plays a vital role in regulating various physiological and pathological processes. Dysregulation of these processes mediated by USP7 may contribute to many diseases, such as cancers. Moreover, USP7 with aberrant expression levels and abnormal activity are found in cancers. Therefore, given the association between USP7 and cancers, targeting USP7 could be considered as an attractive and potential therapeutic approach in cancer treatment. This review describes the functions of USP7 and the regulatory mechanisms of its expression and activity, aiming to emphasize the necessity of research on USP7, and provide a better understanding of USP7-related biological processes and cancer.
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Affiliation(s)
- Lin Zhou
- First Clinical Medical College, Nanchang University, Nanchang, China
| | - Taohui Ouyang
- Department of Neurosurgery, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Meihua Li
- Department of Neurosurgery, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Tao Hong
- Department of Neurosurgery, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Alriashy Mhs
- Department of Neurosurgery, Huashan Hospital of Fudan University, Shanghai, China
| | - Wei Meng
- Department of Neurosurgery, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Na Zhang
- Department of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, China
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Ding Y, Wang G, Zhan M, Sun X, Deng Y, Zhao Y, Liu B, Liu Q, Wu S, Zhou Z. Hippo signaling suppresses tumor cell metastasis via a Yki-Src42A positive feedback loop. Cell Death Dis 2021; 12:1126. [PMID: 34862372 PMCID: PMC8642408 DOI: 10.1038/s41419-021-04423-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 11/11/2021] [Accepted: 11/23/2021] [Indexed: 12/22/2022]
Abstract
Metastasis is an important cause of death from malignant tumors. It is of great significance to explore the molecular mechanism of metastasis for the development of anti-cancer drugs. Here, we find that the Hippo pathway hampers tumor cell metastasis in vivo. Silence of hpo or its downstream wts promotes tumor cell migration in a Yki-dependent manner. Furthermore, we identify that inhibition of the Hippo pathway promotes tumor cell migration through transcriptional activating src42A, a Drosophila homolog of the SRC oncogene. Yki activates src42A transcription through direct binding its intron region. Intriguingly, Src42A further increases Yki transcriptional activity to form a positive feedback loop. Finally, we show that SRC is also a target of YAP and important for YAP to promote the migration of human hepatocellular carcinoma cells. Together, our findings uncover a conserved Yki/YAP-Src42A/SRC positive feedback loop promoting tumor cell migration and provide SRC as a potential therapeutic target for YAP-driven metastatic tumors.
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Affiliation(s)
- Yan Ding
- grid.440622.60000 0000 9482 4676State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, 271018 Tai’an, China
| | - Guiping Wang
- grid.216938.70000 0000 9878 7032Tianjin Key Laboratory of Protein Sciences, State Key Laboratory of Medical Chemical Biology, College of Life Sciences, Nankai University, 300071 Tianjin, China
| | - Meixiao Zhan
- grid.452930.90000 0004 1757 8087Center of Intervention radiology, Zhuhai Precision Medicine Center, Zhuhai People’s Hospital, 519000 Zhuhai, China
| | - Xiaohan Sun
- grid.440622.60000 0000 9482 4676State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, 271018 Tai’an, China
| | - Yanran Deng
- grid.254147.10000 0000 9776 7793Jiangsu Key laboratory of Drug Screening, China Pharmaceutical University, 210009 Nanjing, China
| | - Yunhe Zhao
- grid.440622.60000 0000 9482 4676State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, 271018 Tai’an, China
| | - Bin Liu
- grid.440622.60000 0000 9482 4676State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, 271018 Tai’an, China
| | - Qingxin Liu
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, 271018, Tai'an, China.
| | - Shian Wu
- Tianjin Key Laboratory of Protein Sciences, State Key Laboratory of Medical Chemical Biology, College of Life Sciences, Nankai University, 300071, Tianjin, China.
| | - Zizhang Zhou
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, 271018, Tai'an, China.
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Abstract
Hepatocellular carcinoma (HCC) is a very deadly disease. HCC initiation and progression involve multiple genetic events, including the activation of proto-oncogenes and disruption of the function of specific tumor suppressor genes. Activation of oncogenes stimulates cell growth and survival, while loss-of-function mutations of tumor suppressor genes result in unrestrained cell growth. In this review, we summarize the new findings that identified novel proto-oncogenes and tumor suppressors in HCC over the past five years. These findings may inspire the development of novel therapeutic strategies to improve the outcome of HCC patients.
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35
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Liu B, Ding Y, Sun B, Liu Q, Zhou Z, Zhan M. The Hh pathway promotes cell apoptosis through Ci-Rdx-Diap1 axis. Cell Death Discov 2021; 7:263. [PMID: 34561426 PMCID: PMC8463586 DOI: 10.1038/s41420-021-00653-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 08/22/2021] [Accepted: 09/09/2021] [Indexed: 11/28/2022] Open
Abstract
Apoptosis is a strictly coordinated process to eliminate superfluous or damaged cells, and its deregulation leads to birth defects and various human diseases. The regulatory mechanism underlying apoptosis still remains incompletely understood. To identify novel components in apoptosis, we carry out a modifier screen and find that the Hh pathway aggravates Hid-induced apoptosis. In addition, we reveal that the Hh pathway triggers apoptosis through its transcriptional target gene rdx, which encodes an E3 ubiquitin ligase. Rdx physically binds Diap1 to promote its K63-linked polyubiquitination, culminating in attenuating Diap1-Dronc interaction without affecting Diap1 stability. Taken together, our findings unexpectedly uncover the oncogenic Hh pathway is able to promote apoptosis through Ci-Rdx-Diap1 module, raising a concern to choose Hh pathway inhibitors as anti-tumor drugs.
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Affiliation(s)
- Bin Liu
- College of Life Sciences, Shandong Agricultural University, Tai'an, China
| | - Yan Ding
- College of Life Sciences, Shandong Agricultural University, Tai'an, China
| | - Bing Sun
- Department of Anorectum, the First affiliated Hospital of Shandong First Medical University, Ji'nan, China
| | - Qingxin Liu
- College of Life Sciences, Shandong Agricultural University, Tai'an, China
| | - Zizhang Zhou
- College of Life Sciences, Shandong Agricultural University, Tai'an, China.
| | - Meixiao Zhan
- Zhuhai Interventional Medical Center, Zhuhai Precision Medical Center, Zhuhai People's Hospital, Zhuhai Hospital Affiliated with Jinan University, Zhuhai, China.
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Ye M, He J, Zhang J, Liu B, Liu X, Xie L, Wei M, Dong R, Li K, Ma D, Dong K. USP7 promotes hepatoblastoma progression through activation of PI3K/AKT signaling pathway. Cancer Biomark 2021; 31:107-117. [PMID: 33780361 DOI: 10.3233/cbm-200052] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Hepatoblastoma (HB) is an embryonic solid tumor and the most common primary malignant liver tumor in children. HB usually occurs in infants and children. Although treatment diversity is increasing, some patients still have very poor prognosis. Many studies have investigated USP7 inhibitors for tumors. Using database information, we found that USP7 is highly expressed in HB. METHODS Lentivirus-mediated USP7 knockdown and overexpression was performed in HB cell lines HepG2 and Huh6. CCK8 and transwell assays were used to determine cell viability and metastasis. Flow cytometry was used to study cell cycle and apoptosis. Levels of proteins were detected using western blots. RESULTS Downregulation of USP7 resulted in significant decrease in cell proliferation, clonal formation, and cell migration and invasion. With overexpression of USP7, cellular malignant behavior increased. Cell cycle assays showed that USP7 knockdown inhibited G1 to S phase transition in the cell cycle. Upregulation of USP7 promoted the transition. Animal experiments showed USP7 facilitated tumor growth in vivo. Western blots indicated that USP7 may affect HB tumorigenesis through the PI3K/AKT signaling pathway. Furthermore, USP7 inhibitor P5091 inhibited HB development and PI3K/AKT pathway. CONCLUSION USP7 upregulation contributed to HB genesis and development through the PI3K/AKT signaling pathway. USP7 could be a potential target for future HB treatment.
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Affiliation(s)
- Mujie Ye
- Department of Pediatric Surgery, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China.,Key Laboratory of Neonatal Disease, Ministry of Health, Shanghai, China.,Department of Pediatric Surgery, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Jiajun He
- Department of Pediatric Surgery, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China.,Key Laboratory of Neonatal Disease, Ministry of Health, Shanghai, China.,Department of Pediatric Surgery, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Jingjing Zhang
- Department of Medical Imaging, Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, China.,Department of Pediatric Surgery, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Baihui Liu
- Department of Pediatric Surgery, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China.,Key Laboratory of Neonatal Disease, Ministry of Health, Shanghai, China
| | - Xiangqi Liu
- Department of Pediatric Surgery, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China.,Key Laboratory of Neonatal Disease, Ministry of Health, Shanghai, China
| | - Lulu Xie
- Department of Pediatric Surgery, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China.,Key Laboratory of Neonatal Disease, Ministry of Health, Shanghai, China
| | - Meng Wei
- Department of Pediatric Surgery, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China.,Key Laboratory of Neonatal Disease, Ministry of Health, Shanghai, China
| | - Rui Dong
- Department of Pediatric Surgery, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China.,Key Laboratory of Neonatal Disease, Ministry of Health, Shanghai, China
| | - Kai Li
- Department of Pediatric Surgery, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China.,Key Laboratory of Neonatal Disease, Ministry of Health, Shanghai, China
| | - Duan Ma
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Department of Biochemistry and Molecular Biology, Institute of Biomedical Sciences, Collaborative Innovation Center of Genetics and Development, School of Basic Medical Sciences, Fudan University, Shanghai, China.,Shanghai Key Lab of Birth Defect, Children's Hospital of Fudan University, Shanghai, China
| | - Kuiran Dong
- Department of Pediatric Surgery, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China.,Key Laboratory of Neonatal Disease, Ministry of Health, Shanghai, China
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Zhao X, Fu J, Hu B, Chen L, Wang J, Fang J, Ge C, Lin H, Pan K, Fu L, Wang L, Du J, Xu W. Serine Metabolism Regulates YAP Activity Through USP7 in Colon Cancer. Front Cell Dev Biol 2021; 9:639111. [PMID: 34055773 PMCID: PMC8152669 DOI: 10.3389/fcell.2021.639111] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 03/17/2021] [Indexed: 12/22/2022] Open
Abstract
Metabolic reprogramming is a vital factor in the development of many types of cancer, including colon cancer. Serine metabolic reprogramming is a major feature of tumor metabolism. Yes-associated protein (YAP) participates in organ size control and tumorigenesis. However, the relationship between YAP and serine metabolism in colon cancer is unclear. In this study, RNA sequencing and metabolomics analyses indicated significant enrichment of the glycine, serine, and threonine metabolism pathways in serine starvation-resistant cells. Short-term serine deficiency inhibited YAP activation, whereas a prolonged response dephosphorylated YAP and promoted its activity. Mechanistically, USP7 increases YAP stability under increased serine conditions by regulating deubiquitination. Verteporfin (VP) effectively inhibited the proliferation of colon cancer cells and organoids and could even modulate serine metabolism by inhibiting USP7 expression. Clinically, YAP was significantly activated in colon tumor tissues and positively correlated with the expression of phosphoglycerate dehydrogenase (PHGDH) and USP7. Generally, our study uncovered the mechanism by which serine metabolism regulates YAP via USP7 and identified the crucial role of YAP in the regulation of cell proliferation and tumor growth; thus, VP may be a new treatment for colon cancer.
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Affiliation(s)
- Xiaoya Zhao
- Central Laboratory, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, China.,Department of Medical Oncology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jianfei Fu
- Department of Medical Oncology, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, China
| | - Bin Hu
- Department of Pathology, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, China
| | - Lin Chen
- Central Laboratory, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, China
| | - Jing Wang
- Central Laboratory, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, China
| | - Jinyong Fang
- Department of Science and Education, Jinhua Guangfu Oncology Hospital, Huancheng, Jinhua, China
| | - Chenyang Ge
- Department of Colorectal Surgery, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, China
| | - Haiping Lin
- Central Laboratory, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, China
| | - Kailing Pan
- Central Laboratory, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, China
| | - Liang Fu
- Central Laboratory, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, China.,Department of Nursing, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, China
| | - Lude Wang
- Central Laboratory, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, China
| | - Jinlin Du
- Department of Colorectal Surgery, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, China
| | - Wenxia Xu
- Central Laboratory, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, China
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An L, Nie P, Chen M, Tang Y, Zhang H, Guan J, Cao Z, Hou C, Wang W, Zhao Y, Xu H, Jiao S, Zhou Z. MST4 kinase suppresses gastric tumorigenesis by limiting YAP activation via a non-canonical pathway. J Exp Med 2021; 217:151647. [PMID: 32271880 PMCID: PMC7971137 DOI: 10.1084/jem.20191817] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 01/08/2020] [Accepted: 02/18/2020] [Indexed: 12/11/2022] Open
Abstract
Hyperactivation of YAP has been commonly associated with tumorigenesis, and emerging evidence hints at multilayered Hippo-independent regulations of YAP. In this study, we identified a new MST4-YAP axis, which acts as a noncanonical Hippo signaling pathway that limits stress-induced YAP activation. MST4 kinase directly phosphorylated YAP at Thr83 to block its binding with importin α, therefore leading to YAP cytoplasmic retention and inactivation. Due to a consequential interplay between MST4-mediated YAP phospho-Thr83 signaling and the classical YAP phospho-Ser127 signaling, the phosphorylation level of YAP at Thr83 was correlated to that at Ser127. Mutation of T83E mimicking MST4-mediated alternative signaling restrained the activity of both wild-type YAP and its S127A mutant mimicking loss of classical Hippo signal. Depletion of MST4 in mice promoted gastric tumorigenesis with diminished Thr83 phosphorylation and hyperactivation of YAP. Moreover, loss of MST4-YAP signaling was associated with poor prognosis of human gastric cancer. Collectively, our study uncovered a noncanonical MST4-YAP signaling axis essential for suppressing gastric tumorigenesis.
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Affiliation(s)
- Liwei An
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Ultrasound Research and Education Institute, Tongji University Cancer Center, Shanghai Engineering Research Center of Ultrasound Diagnosis and Treatment, Tongji University School of Medicine, Tongji University, Shanghai, People's Republic of China
| | - Pingping Nie
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, People's Republic of China
| | - Min Chen
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Ultrasound Research and Education Institute, Tongji University Cancer Center, Shanghai Engineering Research Center of Ultrasound Diagnosis and Treatment, Tongji University School of Medicine, Tongji University, Shanghai, People's Republic of China
| | - Yang Tang
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Ultrasound Research and Education Institute, Tongji University Cancer Center, Shanghai Engineering Research Center of Ultrasound Diagnosis and Treatment, Tongji University School of Medicine, Tongji University, Shanghai, People's Republic of China
| | - Hui Zhang
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, People's Republic of China
| | - Jingmin Guan
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, People's Republic of China
| | - Zhifa Cao
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, People's Republic of China
| | - Chun Hou
- The School of Life Science and Technology, ShanghaiTech University, Shanghai, People's Republic of China
| | - Wenjia Wang
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, People's Republic of China
| | - Yun Zhao
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, People's Republic of China
| | - Huixiong Xu
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Ultrasound Research and Education Institute, Tongji University Cancer Center, Shanghai Engineering Research Center of Ultrasound Diagnosis and Treatment, Tongji University School of Medicine, Tongji University, Shanghai, People's Republic of China
| | - Shi Jiao
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, People's Republic of China
| | - Zhaocai Zhou
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, People's Republic of China.,The School of Life Science and Technology, ShanghaiTech University, Shanghai, People's Republic of China
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Zhao CX, Zeng CM, Wang K, He QJ, Yang B, Zhou FF, Zhu H. Ubiquitin-proteasome system-targeted therapy for uveal melanoma: what is the evidence? Acta Pharmacol Sin 2021; 42:179-188. [PMID: 32601365 DOI: 10.1038/s41401-020-0441-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Revised: 05/07/2020] [Accepted: 05/12/2020] [Indexed: 12/22/2022] Open
Abstract
Uveal melanoma (UM) is a rare ocular tumor. The loss of BRCA1-associated protein 1 (BAP1) and the aberrant activation of G protein subunit alpha q (GNAQ)/G protein subunit alpha 11 (GNA11) contribute to the frequent metastasis of UM. Thus far, limited molecular-targeted therapies have been developed for the clinical treatment of UM. However, an increasing number of studies have revealed the close relationship between the ubiquitin proteasome system (UPS) and the malignancy of UM. UPS consists of a three-enzyme cascade, i.e. ubiquitin-activating enzymes (E1s); ubiquitin-conjugating enzymes (E2s); and ubiquitin-protein ligases (E3s), as well as 26S proteasome and deubiquitinases (DUBs), which work coordinately to dictate the fate of intracellular proteins through regulating ubiquitination, thus influencing cell viability. Due to the critical role of UPS in tumors, we here provide an overview of the crosstalk between UPS and the malignancy of UM, discuss the current UPS-targeted therapies in UM and highlight its potential in developing novel regimens for UM.
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Cui L, Song W, Zeng Y, Wu Q, Fan Z, Huang T, Zeng B, Zhang M, Ni Q, Li Y, Wang T, Li D, Mao X, Lian T, Yang D, Yang M, Fan X. Deubiquitinase USP7 regulates Drosophila aging through ubiquitination and autophagy. Aging (Albany NY) 2020; 12:23082-23095. [PMID: 33221768 PMCID: PMC7746378 DOI: 10.18632/aging.104067] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 08/14/2020] [Indexed: 02/04/2023]
Abstract
Ubiquitination-mediated protein degradation is the selective degradation of diverse forms of damaged proteins that are tagged with ubiquitin, while deubiquitinating enzymes reverse ubiquitination-mediated protein degradation by removing the ubiquitin chain from the target protein. The interactions of ubiquitinating and deubiquitinating enzymes are required to maintain protein homeostasis. The ubiquitin-specific protease USP7 is a deubiquitinating enzyme that indirectly plays a role in repairing DNA damage and development. However, the mechanism of its participation in aging has not been fully explored. Regarding this issue, we found that USP7 was necessary to maintain the normal lifespan of Drosophila melanogaster, and knockdown of dusp7 shortened the lifespan and reduced the ability of Drosophila to cope with starvation, oxidative stress and heat stress. Furthermore, we showed that the ability of USP7 to regulate aging depends on the autophagy and ubiquitin signaling pathways. Furthermore, 2,5-dimethyl-celecoxib (DMC), a derivative of celecoxib, can partially restore the shortened lifespan and aberrant phenotypes caused by dusp7 knockdown. Our results suggest that USP7 is an important factor involved in the regulation of aging, and related components in this regulatory pathway may become new targets for anti-aging treatments.
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Affiliation(s)
- Lang Cui
- Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Wenhao Song
- Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Yao Zeng
- Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Qi Wu
- Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Ziqiang Fan
- Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Tiantian Huang
- Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Bo Zeng
- Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China.,Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Mingwang Zhang
- Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China.,Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Qingyong Ni
- Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China.,Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Yan Li
- Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China.,Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Tao Wang
- Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China.,Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Diyan Li
- Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China.,Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Xueping Mao
- Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China.,Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Ting Lian
- Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China.,Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Deying Yang
- Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China.,Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Mingyao Yang
- Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China.,Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Xiaolan Fan
- Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China.,Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China
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Abstract
The Hippo pathway is an evolutionarily conserved regulator of organ growth and tumorigenesis. In Drosophila, oncogenic RasV12 cooperates with loss-of-cell polarity to promote Hippo pathway-dependent tumor growth. To identify additional factors that modulate this signaling, we performed a genetic screen utilizing the Drosophila Ras V12 /lgl -/- in vivo tumor model and identified Rox8, a RNA-binding protein (RBP), as a positive regulator of the Hippo pathway. We found that Rox8 overexpression suppresses whereas Rox8 depletion potentiates Hippo-dependent tissue overgrowth, accompanied by altered Yki protein level and target gene expression. Mechanistically, Rox8 directly binds to a target site located in the yki 3' UTR, recruits and stabilizes the targeting of miR-8-loaded RISC, which accelerates the decay of yki messenger RNA (mRNA). Moreover, TIAR, the human ortholog of Rox8, is able to promote the degradation of yki mRNA when introduced into Drosophila and destabilizes YAP mRNA in human cells. Thus, our study provides in vivo evidence that the Hippo pathway is posttranscriptionally regulated by the collaborative action of RBP and microRNA (miRNA), which may provide an approach for modulating Hippo pathway-mediated tumorigenesis.
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42
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Zhao W, Wang M, Cai M, Zhang C, Qiu Y, Wang X, Zhang T, Zhou H, Wang J, Zhao W, Shao R. Transcriptional co-activators YAP/TAZ: Potential therapeutic targets for metastatic breast cancer. Biomed Pharmacother 2020; 133:110956. [PMID: 33189066 DOI: 10.1016/j.biopha.2020.110956] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 10/19/2020] [Accepted: 10/27/2020] [Indexed: 02/07/2023] Open
Abstract
Breast cancer is the most commonly diagnosed cancer among women. Although routine and targeted therapies have improved the survival rate, there are still considerable challenges in the treatment of breast cancer. Metastasis is the leading cause of death in patients diagnosed with breast cancer. Yes-associated protein (YAP) and/or PDZ binding motif (TAZ) are usually abnormally activated in breast cancer leading to a variety of effects on tumour promotion, such as epithelial-mesenchymal transition, cancer stem cell production and drug-resistance. The abnormal activation of YAP/TAZ can affect metastasis-related processes and promote cancer progression and metastasis by interacting with some metastasis-related factors and pathways. In this article, we summarise the evidence that YAP/TAZ regulates breast cancer metastasis, its post-translational modification mechanisms, and the latest advances in the treatment of YAP/TAZ-related breast cancer metastasis, besides providing a new strategy of YAP/TAZ-based treatment of human breast cancer.
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Affiliation(s)
- Wenxia Zhao
- NHC Key Laboratory of Antibiotic Bioengineering, Laboratory of Oncology, Institute of Medicinal Biotechnology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100050, China.
| | - Mengyan Wang
- NHC Key Laboratory of Antibiotic Bioengineering, Laboratory of Oncology, Institute of Medicinal Biotechnology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100050, China.
| | - Meilian Cai
- NHC Key Laboratory of Antibiotic Bioengineering, Laboratory of Oncology, Institute of Medicinal Biotechnology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100050, China.
| | - Conghui Zhang
- NHC Key Laboratory of Antibiotic Bioengineering, Laboratory of Oncology, Institute of Medicinal Biotechnology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100050, China.
| | - Yuhan Qiu
- NHC Key Laboratory of Antibiotic Bioengineering, Laboratory of Oncology, Institute of Medicinal Biotechnology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100050, China.
| | - Xiaowei Wang
- NHC Key Laboratory of Antibiotic Bioengineering, Laboratory of Oncology, Institute of Medicinal Biotechnology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100050, China.
| | - Tianshu Zhang
- NHC Key Laboratory of Antibiotic Bioengineering, Laboratory of Oncology, Institute of Medicinal Biotechnology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100050, China.
| | - Huimin Zhou
- NHC Key Laboratory of Antibiotic Bioengineering, Laboratory of Oncology, Institute of Medicinal Biotechnology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100050, China.
| | - Junxia Wang
- NHC Key Laboratory of Antibiotic Bioengineering, Laboratory of Oncology, Institute of Medicinal Biotechnology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100050, China.
| | - Wuli Zhao
- NHC Key Laboratory of Antibiotic Bioengineering, Laboratory of Oncology, Institute of Medicinal Biotechnology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100050, China.
| | - Rongguang Shao
- NHC Key Laboratory of Antibiotic Bioengineering, Laboratory of Oncology, Institute of Medicinal Biotechnology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100050, China.
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Gu Y, Wang Y, Wang Y, Luo J, Wang X, Ma M, Hua W, Liu Y, Yu FX. Hypermethylation of LATS2 Promoter and Its Prognostic Value in IDH-Mutated Low-Grade Gliomas. Front Cell Dev Biol 2020; 8:586581. [PMID: 33195240 PMCID: PMC7642219 DOI: 10.3389/fcell.2020.586581] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 09/30/2020] [Indexed: 12/12/2022] Open
Abstract
Mutations in the enzyme isocitrate dehydrogenase 1/2 (IDH1/2) are the most common somatic mutations in low-grade glioma (LGG). The Hippo signaling pathway is known to play a key role in organ size control, and its dysregulation is involved in the development of diverse cancers. Large tumor suppressor 1/2 (LATS1/2) are core Hippo pathway components that phosphorylate and inactivate Yes-associated protein (YAP), a transcriptional co-activator that regulates expression of genes involved in tumorigenesis. A recent report from The Cancer Genome Atlas (TCGA) has highlighted a frequent hypermethylation of LATS2 in IDH-mutant LGG. However, it is unclear if LATS2 hypermethylation is associated with YAP activation and prognosis of LGG patients. Here, we performed a network analysis of the status of the Hippo pathway in IDH-mutant LGG samples and determined its association with cancer prognosis. Combining TCGA data with our biochemical assays, we found hypermethylation of LATS2 promoter in IDH-mutant LGG. LATS2 hypermethylation, however, did not translate into YAP activation but highly correlated with IDH mutation. LATS2 hypermethylation may thus serve as an alternative for IDH mutation in diagnosis and a favorable prognostic factor for LGG patients.
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Affiliation(s)
- Yuan Gu
- Institute of Pediatrics, Children's Hospital of Fudan University and the Shanghai Key Laboratory of Medical Epigenetics, The International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yu Wang
- Institute of Pediatrics, Children's Hospital of Fudan University and the Shanghai Key Laboratory of Medical Epigenetics, The International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yebin Wang
- Institute of Pediatrics, Children's Hospital of Fudan University and the Shanghai Key Laboratory of Medical Epigenetics, The International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jiaqian Luo
- Institute of Pediatrics, Children's Hospital of Fudan University and the Shanghai Key Laboratory of Medical Epigenetics, The International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Xin Wang
- Institute of Pediatrics, Children's Hospital of Fudan University and the Shanghai Key Laboratory of Medical Epigenetics, The International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Mingyue Ma
- Institute of Pediatrics, Children's Hospital of Fudan University and the Shanghai Key Laboratory of Medical Epigenetics, The International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Wei Hua
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China
| | - Ying Liu
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Fa-Xing Yu
- Institute of Pediatrics, Children's Hospital of Fudan University and the Shanghai Key Laboratory of Medical Epigenetics, The International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
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USP7 mediates pathological hepatic de novo lipogenesis through promoting stabilization and transcription of ZNF638. Cell Death Dis 2020; 11:843. [PMID: 33040080 PMCID: PMC7548010 DOI: 10.1038/s41419-020-03075-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 09/27/2020] [Accepted: 09/30/2020] [Indexed: 02/08/2023]
Abstract
Aberrant de novo lipogenesis (DNL) results in excessive hepatic lipid accumulation and liver steatosis, the causative factors of many liver diseases, such as non-alcoholic fatty liver disease (NAFLD), non-alcoholic steatohepatitis (NASH), and hepatocellular carcinoma (HCC). However, the underlying mechanism of DNL dysregulation remains largely unknown. Ubiquitination of proteins in hepatocytes has been shown to be widely involved in lipid metabolism of liver. Here, we revealed that Ubiquitin-specific peptidase 7 (USP7), a deubiquitinase (DUB), played key roles in DNL through regulation of zinc finger protein 638 (ZNF638) in hepatocytes. USP7 has been shown not only to interact with and deubiquitylate ZNF638, but also to facilitate the transcription of ZNF638 via the stabilization of cAMP responsive element binding protein (CREB). USP7/ZNF638 axis selectively increased the cleavage of sterol regulatory element binding protein (SREBP1C) through AKT/mTORC1/S6K signaling, and formed USP7/ZNF638/SREBP1C nuclear complex to regulate lipogenesis-associated enzymes, including acetyl-CoA carboxylase (ACACA), fatty acid synthase (FASN), and Stearoyl-CoA desaturase (SCD). In the mice liver steatosis model induced by fructose, USP7 or ZNF638 abrogation significantly ameliorated disease progression. Furthermore, USP7/ZNF638 axis participated in the progression of lipogenesis-associated HCC. Our results have uncovered a novel mechanism of hepatic DNL, which might be beneficial to the development of new therapeutic targets for hepatic lipogenesis-associated diseases.
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Zhao Y, Xue C, Xie Z, Ouyang X, Li L. Comprehensive analysis of ubiquitin-specific protease 1 reveals its importance in hepatocellular carcinoma. Cell Prolif 2020; 53:e12908. [PMID: 32951278 PMCID: PMC7574869 DOI: 10.1111/cpr.12908] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 08/19/2020] [Accepted: 08/31/2020] [Indexed: 12/17/2022] Open
Abstract
Objectives In this study, we comprehensively analysed the role of ubiquitin‐specific protease 1(USP1) in hepatocellular carcinoma (HCC) using data from a set of public databases. Materials and Methods We analysed the mRNA expression of USP1 in HCC and subgroups of HCC using Oncomine and UALCAN. Survival analysis of USP1 in HCC was conducted with the Kaplan‐Meier Plotter database. The mutations of USP1 in HCC were analysed using cBioPortal and the Catalogue of Somatic Mutations in Cancer database. Differential genes correlated with USP1 and WD repeat domain 48 (WDR48) were obtained using LinkedOmics. USP1 was knocked down with small interfering RNA (siRNA) or pharmacologically inhibited by ML‐323 in MHCC97H or SK‐Hep‐1 cell lines for function analysis. Results High USP1 expression predicted unfavourable overall survival in HCC patients. USP1 showed positive correlations with the abundances of macrophages and neutrophils. We identified 98 differential genes that were positively correlated with both USP1 and WDR48. These genes were mainly involved in the cell cycle, aldosterone synthesis and secretion and oestrogen signalling pathways. Interactions between USP1 and WDR 48 were confirmed using co‐immunoprecipitation. USP1 knockdown or ML‐323 treatment reduced the expression of proliferating cell nuclear antigen (PCNA), cyclin D1 and cyclin E1. Conclusions Overall, USP1 is a promising target for HCC treatment with good prognostic value. USP1 and WDR48 function together in regulating cancer cell proliferation via the cell cycle.
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Affiliation(s)
- Yalei Zhao
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Chen Xue
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Zhongyang Xie
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Xiaoxi Ouyang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Lanjuan Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
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46
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Yu X, Li M, Cui M, Sun B, Zhou Z. Silence of yki by miR-7 regulates the Hippo pathway. Biochem Biophys Res Commun 2020; 532:446-452. [PMID: 32888651 DOI: 10.1016/j.bbrc.2020.08.069] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 08/21/2020] [Indexed: 12/25/2022]
Abstract
The Hippo signaling pathway governs organ size via coordinating cell proliferation and apoptosis, and its dysregulation causes congenital diseases and cancers. The homeostasis of Hippo pathway is achieved through multiple post translational modifications. Through Drosophila genetic screening, we found that miRNAs were also involved in Hippo pathway regulation. Here, we showed that overexpression of miR-7 resulted in small wings, which were neutralized by miR-7-sponge (miR-7-sp) co-expression. Mechanistically, miR-7 inhibited the expression of Hippo pathway target genes. Epistatic analyses revealed that miR-7 modulated Hippo pathway through the transcriptional cofactor Yorkie (Yki). Consistently, overexpression of miR-7 decreased Yki protein. We further found a seed sequence of miR-7 in the yki 3'-UTR region. In addition, we discovered that miR-7 was a transcriptional target of Yki. Thus, a negative feedback loop existed for fine tuning Hippo pathway activity. Taken together, our findings uncovered a novel mechanism by which Yki was silenced by miR-7 for Hippo pathway regulation.
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Affiliation(s)
- Xuan Yu
- College of Life Science, Shandong Agricultural University, Tai'an, Shandong, China
| | - Mingming Li
- College of Life Science, Shandong Agricultural University, Tai'an, Shandong, China
| | - Meng Cui
- Department of Anorectum, The First Affiliated Hospital of Shandong First Medical University, Ji'nan, Shandong, China
| | - Bing Sun
- Department of Anorectum, The First Affiliated Hospital of Shandong First Medical University, Ji'nan, Shandong, China. http://sunbing_163.com
| | - Zizhang Zhou
- College of Life Science, Shandong Agricultural University, Tai'an, Shandong, China.
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Xin Y, Yang X, Xiao J, Zhao W, Li Y, Lu L, He X, Zhan M. MiR-135b promotes HCC tumorigenesis through a positive-feedback loop. Biochem Biophys Res Commun 2020; 530:259-265. [PMID: 32828296 DOI: 10.1016/j.bbrc.2020.07.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 07/03/2020] [Indexed: 12/11/2022]
Abstract
Hippo pathway plays critical roles in cell proliferation and apoptosis and its dysregulation leads to various types of cancers, including hepatocellular carcinoma (HCC). However, the mechanism maintaining Hippo pathway homeostasis still remains unclear. In this study, we discovered that the expression of miR-135b is apparently upregulated in HCC tissues and HCC cell lines. The level of miR-135b was positively correlated with HCC stages and negatively correlated with the survival of HCC patients, suggesting an oncogenic role of miR-135b in HCC progression. Similarly, miR-135b mimic promoted HCC cell proliferation and migration, whereas its inhibitor played an opposite role. Mechanistically, we identified a seed sequence of miR-135b in the MST1 3'-UTR region. MiR-135b inhibited the Hippo pathway by silencing MST1 expression. Additionally, we revealed that miR-135b was a transcriptional target of the Hippo pathway. Based on these data, we propose that a positive-feedback axis of MST1-YAP-miR-135b exists for HCC aggravation. Our study not only deepens the insight into the Hippo pathway homeostasis, but also suggests miR-135b as a potential prognosis biomarker and therapeutic target for HCC.
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Affiliation(s)
- Yongjie Xin
- Zhuhai Interventional Medical Center, Zhuhai Precision Medical Center, Zhuhai People's Hospital, Zhuhai Hospital Affiliated with Jinan University, Zhuhai, Guangdong, 519000, PR China
| | - Xiangyu Yang
- Zhuhai Interventional Medical Center, Zhuhai Precision Medical Center, Zhuhai People's Hospital, Zhuhai Hospital Affiliated with Jinan University, Zhuhai, Guangdong, 519000, PR China
| | - Jing Xiao
- Zhuhai Interventional Medical Center, Zhuhai Precision Medical Center, Zhuhai People's Hospital, Zhuhai Hospital Affiliated with Jinan University, Zhuhai, Guangdong, 519000, PR China
| | - Wei Zhao
- Zhuhai Interventional Medical Center, Zhuhai Precision Medical Center, Zhuhai People's Hospital, Zhuhai Hospital Affiliated with Jinan University, Zhuhai, Guangdong, 519000, PR China
| | - Yong Li
- Zhuhai Interventional Medical Center, Zhuhai Precision Medical Center, Zhuhai People's Hospital, Zhuhai Hospital Affiliated with Jinan University, Zhuhai, Guangdong, 519000, PR China
| | - Ligong Lu
- Zhuhai Interventional Medical Center, Zhuhai Precision Medical Center, Zhuhai People's Hospital, Zhuhai Hospital Affiliated with Jinan University, Zhuhai, Guangdong, 519000, PR China
| | - Xu He
- Zhuhai Interventional Medical Center, Zhuhai Precision Medical Center, Zhuhai People's Hospital, Zhuhai Hospital Affiliated with Jinan University, Zhuhai, Guangdong, 519000, PR China
| | - Meixiao Zhan
- Zhuhai Interventional Medical Center, Zhuhai Precision Medical Center, Zhuhai People's Hospital, Zhuhai Hospital Affiliated with Jinan University, Zhuhai, Guangdong, 519000, PR China.
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48
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WD repeat-containing protein 1 maintains β-Catenin activity to promote pancreatic cancer aggressiveness. Br J Cancer 2020; 123:1012-1023. [PMID: 32601462 PMCID: PMC7492282 DOI: 10.1038/s41416-020-0929-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 04/27/2020] [Accepted: 05/21/2020] [Indexed: 12/14/2022] Open
Abstract
Background The molecular signature underlying pancreatic ductal adenocarcinoma (PDAC) progression may include key proteins affecting the malignant phenotypes. Here, we aimed to identify the proteins implicated in PDAC with different tumour-node-metastasis (TNM) stages. Methods Eight-plex isobaric tags coupled with two-dimensional liquid chromatography–tandem mass spectrometry were used to analyse the proteome of PDAC tissues with different TNM stages. A loss-of-function study was performed to evaluate the oncogenic roles of WD repeat-containing protein 1 (WDR1) in PDAC. The molecular mechanism by which WDR1 promotes PDAC progression was studied by real-time qPCR, Western blotting, proximity ligation assay and co-immunoprecipitation. Results A total of 5036 proteins were identified, and 4708 proteins were quantified with high confidence. Compared with normal pancreatic tissues, 37 proteins were changed significantly in PDAC tissues of different stages. Moreover, 64 proteins were upregulated or downregulated in a stepwise manner as the TNM stages of PDAC increased, and 10 proteins were related to tumorigenesis. The functionally uncharacterised protein, WDR1, was highly expressed in PDAC and predicted a poor prognosis. WDR1 knockdown suppressed PDAC tumour growth and metastasis in vitro and in vivo. Moreover, WDR1 knockdown repressed the activity of the Wnt/β-Catenin pathway; ectopic expression of a stabilised form of β-Catenin restored the suppressive effects of WDR1 knockdown. Mechanistically, WDR1 interacted with USP7 to prevent ubiquitination-mediated degradation of β-Catenin. Conclusion Our study identifies several previous functional unknown proteins implicated in the progression of PDAC, and provides new insight into the oncogenic roles of WDR1 in PDAC development.
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Song C, Kong Y, Huang L, Luo H, Zhu X. Big data-driven precision medicine: Starting the custom-made era of iatrology. Biomed Pharmacother 2020; 129:110445. [PMID: 32593132 DOI: 10.1016/j.biopha.2020.110445] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 06/14/2020] [Accepted: 06/17/2020] [Indexed: 12/12/2022] Open
Abstract
Precision medicine is a new therapeutic concept and method emerging in recent years. The rapid development of precision medicine is driven by the development of omics related technology, biological information and big data science. Precision medicine is provided to implement precise and personalized treatment for diseases and specific patients. Precision medicine is commonly used in the diagnosis, treatment and prevention of various diseases. This review introduces the application of precision medicine in eight systematic diseases of the human body, and systematically presenting the current situation of precision medicine. At the same time, the shortcomings and limitations of precision medicine are pointed out. Finally, we prospect the development of precision medicine.
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Affiliation(s)
- Chang Song
- Marine Medical Research Institute of Guangdong Zhanjiang (GDZJMMRI), Southern Marine Science and Engineering Guangdong Laboratory Zhanjiang, Guangdong Medical University, Zhanjiang 524023, China
| | - Ying Kong
- Department of Clinical Laboratory, Hubei No. 3 People's Hospital of Jianghan University, Wuhan 430033, China
| | - Lianfang Huang
- Marine Medical Research Institute of Guangdong Zhanjiang (GDZJMMRI), Southern Marine Science and Engineering Guangdong Laboratory Zhanjiang, Guangdong Medical University, Zhanjiang 524023, China.
| | - Hui Luo
- Marine Medical Research Institute of Guangdong Zhanjiang (GDZJMMRI), Southern Marine Science and Engineering Guangdong Laboratory Zhanjiang, Guangdong Medical University, Zhanjiang 524023, China.
| | - Xiao Zhu
- Marine Medical Research Institute of Guangdong Zhanjiang (GDZJMMRI), Southern Marine Science and Engineering Guangdong Laboratory Zhanjiang, Guangdong Medical University, Zhanjiang 524023, China.
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50
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Li Y, Sun X, Gao D, Ding Y, Liu J, Chen J, Luo J, Zhang J, Liu Q, Zhou Z. Dual functions of Rack1 in regulating Hedgehog pathway. Cell Death Differ 2020; 27:3082-3096. [PMID: 32467643 PMCID: PMC7560836 DOI: 10.1038/s41418-020-0563-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2019] [Revised: 05/12/2020] [Accepted: 05/13/2020] [Indexed: 01/20/2023] Open
Abstract
Hedgehog (Hh) pathway plays multiple roles in many physiological processes and its dysregulation leads to congenital disorders and cancers. Hh regulates the cellular localization of Smoothened (Smo) and the stability of Cubitus interruptus (Ci) to fine-tune the signal outputs. However, the underlying mechanisms are still unclear. Here, we show that the scaffold protein Rack1 plays dual roles in Hh signaling. In the absence of Hh, Rack1 promotes Ci and Cos2 to form a Ci–Rack1–Cos2 complex, culminating in Slimb-mediated Ci proteolysis. In the presence of Hh, Rack1 dissociates from Ci–Rack1–Cos2 complex and forms a trimeric complex with Smo and Usp8, leading to Smo deubiquitination and cell surface accumulation. Furthermore, we find the regulation of Rack1 on Hh pathway is conserved from Drosophila to mammalian cells. Our findings demonstrate that Rack1 plays dual roles during Hh signal transduction and provide Rack1 as a potential drug target for Hh-related diseases.
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Affiliation(s)
- Yan Li
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, 271018, Tai'an, China
| | - Xiaohan Sun
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, 271018, Tai'an, China
| | - Dongqing Gao
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, 271018, Tai'an, China
| | - Yan Ding
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, 271018, Tai'an, China
| | - Jinxiao Liu
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, 271018, Tai'an, China
| | - Jiong Chen
- State Key Laboratory of Pharmaceutical Biotechnology and MOE Key Laboratory of Model Animals for Disease Study, Model Animal Research Center, Nanjing University, 210061, Nanjing, China
| | - Jun Luo
- State Key Laboratory of Pharmaceutical Biotechnology and MOE Key Laboratory of Model Animals for Disease Study, Model Animal Research Center, Nanjing University, 210061, Nanjing, China
| | - Junzheng Zhang
- Department of Entomology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, 100094, Beijing, China
| | - Qingxin Liu
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, 271018, Tai'an, China.
| | - Zizhang Zhou
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, 271018, Tai'an, China.
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