1
|
Dong W, Chen J, Wang Y, Weng J, Du X, Fang X, Liu W, Long T, You J, Wang W, Peng X. miR-206 alleviates LPS-induced inflammatory injury in cardiomyocytes via directly targeting USP33 to inhibit the JAK2/STAT3 signaling pathway. Mol Cell Biochem 2024; 479:929-940. [PMID: 37256445 PMCID: PMC10230473 DOI: 10.1007/s11010-023-04754-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 04/28/2023] [Indexed: 06/01/2023]
Abstract
Previous reports have confirmed that miR-206 participates in inflammatory cardiomyopathy, but its definite mechanism remains elusive. This study aims to elucidate the potential mechanism of miR-206 in septic cardiomyopathy (SCM). The primary mouse cardiomyocytes were isolated and exposed to lipopolysaccharides (LPS) to construct a septic injury model in vitro. Then, the gene transcripts and protein levels were detected by RT-qPCR and/or Western blot assay. Cell proliferation, apoptosis, and inflammatory responses were evaluated by CCK-8/EdU, flow cytometry, and ELISA assays, respectively. Dual luciferase assay, Co-IP, and ubiquitination experiments were carried out to validate the molecular interactions among miR-206, USP33, and JAK2/STAT3 signaling. miR-206 was significantly downregulated, but USP33 was upregulated in LPS-induced cardiomyocytes. Gain-of-function of miR-206 elevated the proliferation but suppressed the inflammatory responses and apoptosis in LPS-induced cardiomyocytes. USP33, as a member of the USP protein family, was confirmed to be a direct target of miR-206 and could catalyze deubiquitination of JAK2 to activate JAK2/STAT3 signaling. Rescue experiments presented that neither upregulation of USP33 nor JAK2/STAT3 signaling activation considerably reversed the protective effects of miR-206 upregulation in LPS-induced cardiomyocytes. The above data showed that miR-206 protected cardiomyocytes from LPS-induced inflammatory injuries by targeting the USP33/JAK2/STAT3 signaling pathway, which might be a novel target for SCM treatment.
Collapse
Affiliation(s)
- Wei Dong
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17, Yong Waizheng Road, Donghu District, Nanchang, 330006, Jiangxi Province, People's Republic of China
| | - Jin Chen
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17, Yong Waizheng Road, Donghu District, Nanchang, 330006, Jiangxi Province, People's Republic of China
| | - Yadong Wang
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17, Yong Waizheng Road, Donghu District, Nanchang, 330006, Jiangxi Province, People's Republic of China
| | - Junfei Weng
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17, Yong Waizheng Road, Donghu District, Nanchang, 330006, Jiangxi Province, People's Republic of China
| | - Xingxiang Du
- Department of Emergency, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi Province, People's Republic of China
| | - Xu Fang
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17, Yong Waizheng Road, Donghu District, Nanchang, 330006, Jiangxi Province, People's Republic of China
| | - Wenyu Liu
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17, Yong Waizheng Road, Donghu District, Nanchang, 330006, Jiangxi Province, People's Republic of China
| | - Tao Long
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17, Yong Waizheng Road, Donghu District, Nanchang, 330006, Jiangxi Province, People's Republic of China
| | - Jiaxiang You
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17, Yong Waizheng Road, Donghu District, Nanchang, 330006, Jiangxi Province, People's Republic of China
| | - Wensheng Wang
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17, Yong Waizheng Road, Donghu District, Nanchang, 330006, Jiangxi Province, People's Republic of China
| | - Xiaoping Peng
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17, Yong Waizheng Road, Donghu District, Nanchang, 330006, Jiangxi Province, People's Republic of China.
| |
Collapse
|
2
|
Ke X, Hu H, Peng Q, Ying H, Chu X. USP33 promotes nonalcoholic fatty acid disease-associated fibrosis in gerbils via the c-myc signaling. Biochem Biophys Res Commun 2023; 669:68-76. [PMID: 37267862 DOI: 10.1016/j.bbrc.2023.05.100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 05/08/2023] [Accepted: 05/25/2023] [Indexed: 06/04/2023]
Abstract
Nonalcoholic fatty acid disease (NAFLD) is a common complication of obesity associated with liver fibrosis. The underlying molecular mechanisms involved in the progression from normal to fibrosis remain unclear. Liver tissues from the liver fibrosis model identified the USP33 gene as a key gene in NAFLD-associated fibrosis. USP33 knockdown inhibited hepatic stellate cell activation and glycolysis in gerbils with NAFLD-associated fibrosis. Conversely, overexpression of USP33 caused a contrast function on hepatic stellate cell activation and glycolysis activation, which was inhibited by c-Myc inhibitor 10058-F4. The copy number of short-chain fatty acids-producing bacterium Alistipes sp. AL-1, Mucispirillum schaedleri, Helicobacter hepaticus in the feces, and the total bile acid level in serum were higher in gerbils with NAFLD-associated fibrosis. Bile acid promoted USP33 expression and inhibiting its receptor reversed hepatic stellate cell activation in gerbils with NAFLD-associated fibrosis. These results suggest that the expression of USP33, an important deubiquitinating enzyme, is increased in NAFLD fibrosis. These data also point to hepatic stellate cells as a key cell type that may respond to liver fibrosis via USP33-induced cell activation and glycolysis.
Collapse
Affiliation(s)
- Xianfu Ke
- Hangzhou Medical College, Zhejiang, China.
| | - Huiying Hu
- Hangzhou Medical College, Zhejiang, China.
| | | | | | | |
Collapse
|
3
|
Zhong B, Zhu Q, Wang L, Wang F, Zheng Y, Lin S, Cheng X. USP33 enhances cell survival and stemness by deubiquitinating CTNNB1 in BXPC-3 and SW1990 cells. Cell Biol Int 2023. [PMID: 37076992 DOI: 10.1002/cbin.12024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 02/02/2023] [Accepted: 03/27/2023] [Indexed: 04/21/2023]
Abstract
Ubiquitin-specific protease 33 (USP33) has been implicated in various cancers, but its biological function and mechanism of action remain unknown in pancreatic cancer (PCa) as a deubiquitinating enzyme. Herein, we report that USP33 silencing inhibits PCa cell survival and self-renewal. USPs highly expressed in spherical PCa cells were screened by comparing the levels of ubiquitin-specific proteases in spherical PCa cells and adherent PCa cells. After silencing USP, the effect of USP on the proliferation of PCa cells was detected by CCK-8 and colony formation assay, and the effect of USP on cell stemness was detected by tumor sphere formation assay, flow analysis, and western blot analysis. The interaction of USP with CTNNB1 and the effect of USP on the ubiquitination of CTNNB1 were verified by coimmunoprecipitation assay. After replenishing CTNNB1, cell proliferation and cell stemness were examined. USP33 is upregulated in spheric BXPC-3, PCNA-1, and SW1990, compared with adherent BXPC-3, PCNA-1, and SW1990. USP33 interacts with CTNNB1, and stabilizes CTNNB1 by suppressing its degradation. Furthermore, cell proliferation, colony-forming, and self-renewal abilities of PCa cells in vitro, and the expression of stem cell markers EpCAM and CD44, C-myc, Nanog, and SOX2, were suppressed when USP33 was knocked down, which was reversed when CTNNB1 was ectopically expressed in PCa cells. Thus, USP33 promotes PCa cell proliferation and self-renewal by inhibiting the degradation of CTNNB1. USP33 inhibition may be a new treatment option for PCa patients.
Collapse
Affiliation(s)
- Bo Zhong
- Department of Hepatobiliary and Pancreatic Surgery, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen, China
| | - Qiaozhen Zhu
- Department of Respiratory and Critical Care Medicine, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen, China
| | - Linpei Wang
- Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China
| | - Fuyu Wang
- Department of Hepatobiliary and Pancreatic Surgery, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen, China
| | - Yongbin Zheng
- Department of Hepatobiliary and Pancreatic Surgery, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen, China
| | - Shujun Lin
- Department of Hepatobiliary and Pancreatic Surgery, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen, China
| | - Xinsheng Cheng
- Department of Hepatobiliary and Pancreatic Surgery, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen, China
| |
Collapse
|
4
|
Min X, Sun N, Wang S, Zhang X, Kim KM. Sequestration of Gβγ by deubiquitinated arrestins into the nucleus as a novel desensitization mechanism of G protein-coupled receptors. Cell Commun Signal 2023; 21:11. [PMID: 36658650 PMCID: PMC9854190 DOI: 10.1186/s12964-022-01013-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 12/10/2022] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Desensitization of G protein-coupled receptors (GPCRs) refers to a rapid attenuation of responsiveness that occurs with repeated or continuous exposure to agonists. GRK-mediated phosphorylation and subsequent binding with arrestins in the activated receptor cytoplasmic cavity in competition with G proteins has been suggested as the conventional mechanism of desensitization. Along with widely accepted conventional mechanism of desensitization, studies of various GPCRs including dopamine D2-like receptors (D2R, D3R, D4R) have suggested the existence of another desensitization mechanism. In this study, loss-of-function approaches and D2-like receptor mutants that display different desensitization properties were used to elucidate the molecular mechanisms responsible for desensitization. RESULTS Desensitization development entailed the signaling cascade composed of Src, PDK1, and Akt, the latter of which in turn interacted with USP33, an arrestin deubiquitinase, to promote arrestin deubiquitination. The deubiquitinated arrestin subsequently formed a complex with Gβγ and translocated to the nucleus via an importin complex, wherein it sequestered Gβγ from the receptor and Gα, thereby attenuating receptor signaling. As in D2-like receptors, both USP33 and importin β1 were involved in the desensitization of the β2 adrenoceptor. CONCLUSIONS In addition to the conventional mechanism of desensitization, which occurs on the plasma membrane and in the cytosol, this study provides a new insight that another desensitization pathway in which nuclear trafficking plays a critical role is operating. It is plausible that multiple, complementary desensitization measures are in place to properly induce desensitization depending on receptor characteristics or the surrounding environment. Video Abstract.
Collapse
Affiliation(s)
- Xiao Min
- grid.14005.300000 0001 0356 9399Department of Pharmacology, College of Pharmacy, Chonnam National University, Gwangju, 61186 Republic of Korea
| | - Ningning Sun
- grid.14005.300000 0001 0356 9399Department of Pharmacology, College of Pharmacy, Chonnam National University, Gwangju, 61186 Republic of Korea
| | - Shujie Wang
- grid.14005.300000 0001 0356 9399Department of Pharmacology, College of Pharmacy, Chonnam National University, Gwangju, 61186 Republic of Korea
| | - Xiaohan Zhang
- grid.14005.300000 0001 0356 9399Department of Pharmacology, College of Pharmacy, Chonnam National University, Gwangju, 61186 Republic of Korea ,grid.443382.a0000 0004 1804 268XCollege of Pharmaceutical Sciences, Guizhou University, Guiyang, 550025 Guizhou China
| | - Kyeong-Man Kim
- grid.14005.300000 0001 0356 9399Department of Pharmacology, College of Pharmacy, Chonnam National University, Gwangju, 61186 Republic of Korea
| |
Collapse
|
5
|
Zhou B, Wang N, Chen Q, Ren J, Fu X, Cheng X. Deubiquitinase USP33 promotes the glycolysis and growth of osteosarcoma by modifying PFKFB3 ubiquitination and degradation. Am J Cancer Res 2023; 13:922-935. [PMID: 37034227 PMCID: PMC10077048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 02/27/2023] [Indexed: 04/11/2023] Open
Abstract
Osteosarcoma (OS) is the most common malignant tumor of the bone tissue with the lowest survival rate among all pediatric cancers. OS cells grow vigorously under malnutrition; however, the mechanism by which they adapt to metabolic stress via metabolic reprogramming remains undefined. Here, we demonstrated that USP33, a member of the DUBs family, was significantly upregulated in the tissues of patients with OS compared to normal tissues. Moreover, high USP33 expression was significantly associated with poor survival. Functional assays suggested that USP33 promoted OS cell growth through the induction of aerobic glycolysis. Additionally, we confirmed that 6-phosphofructo-2-kinase/fructose-2, 6-biphosphatase 3 (PFKFB3) was critical for USP33-induced proliferation and aerobic glycolysis in OS cells, and the protein expression levels of PFKFB3 and USP33 were positively correlated in the OS tissues. Mechanistically, USP33 stabilized the expression of PFKFB3 by suppressing the ubiquitin mediated PFKFB3 degradation. Collectively, these findings reveal a mechanism by which OS cells survive in a dystrophic tumor microenvironment, with the USP33-PFKFB3 axis as a critical driver of aerobic glycolysis and OS proliferation. Furthermore, these findings reveal novel insights into the adaptation of cancer cells to metabolic stress in OS.
Collapse
Affiliation(s)
- Bin Zhou
- Department of Orthopaedics, The Second Affiliated Hospital of Nanchang UniversityNanchang 330000, Jiangxi, China
| | - Nanye Wang
- Department of Ophthalmology, The Second Affiliated Hospital of Nanchang UniversityNanchang 330000, Jiangxi, China
| | - Qirui Chen
- Department of Orthopaedics, The Second Affiliated Hospital of Nanchang UniversityNanchang 330000, Jiangxi, China
| | - Juntao Ren
- Department of Orthopaedics, Xiangyang Hospital of Traditional Chinese MedicineXiangyang 441000, Hubei, China
| | - Xiaoling Fu
- Department of Orthopaedics, The Second Affiliated Hospital of Nanchang UniversityNanchang 330000, Jiangxi, China
| | - Xigao Cheng
- Department of Orthopaedics, The Second Affiliated Hospital of Nanchang UniversityNanchang 330000, Jiangxi, China
| |
Collapse
|
6
|
Zhang A, Huang Z, Tao W, Zhai K, Wu Q, Rich JN, Zhou W, Bao S. USP33 deubiquitinates and stabilizes HIF-2alpha to promote hypoxia response in glioma stem cells. EMBO J 2022; 41:e109187. [PMID: 35191554 PMCID: PMC8982626 DOI: 10.15252/embj.2021109187] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 01/13/2022] [Accepted: 01/17/2022] [Indexed: 12/17/2022] Open
Abstract
Hypoxia regulates tumor angiogenesis, metabolism, and therapeutic response in malignant cancers including glioblastoma, the most lethal primary brain tumor. The regulation of HIF transcriptional factors by the ubiquitin-proteasome system is critical in the hypoxia response, but hypoxia-inducible deubiquitinases that counteract the ubiquitination remain poorly defined. While the activation of ERK1/2 also plays an important role in hypoxia response, the relationship between ERK1/2 activation and HIF regulation remains elusive. Here, we identified USP33 as essential deubiquitinase that stabilizes HIF-2alpha protein in an ERK1/2-dependent manner to promote hypoxia response in cancer cells. USP33 is preferentially induced in glioma stem cells by hypoxia and interacts with HIF-2alpha, leading to its stabilization through deubiquitination. The activation of ERK1/2 upon hypoxia promoted HIF-2alpha phosphorylation, enhancing its interaction with USP33. Silencing of USP33 disrupted glioma stem cells maintenance, reduced tumor vascularization, and inhibited glioblastoma growth. Our findings highlight USP33 as an essential regulator of hypoxia response in cancer stem cells, indicating a novel potential therapeutic target for brain tumor treatment.
Collapse
Affiliation(s)
- Aili Zhang
- Department of Cancer BiologyLerner Research InstituteCleveland ClinicClevelandOHUSA
| | - Zhi Huang
- Department of Cancer BiologyLerner Research InstituteCleveland ClinicClevelandOHUSA
| | - Weiwei Tao
- Department of Cancer BiologyLerner Research InstituteCleveland ClinicClevelandOHUSA
| | - Kui Zhai
- Department of Cancer BiologyLerner Research InstituteCleveland ClinicClevelandOHUSA
| | - Qiulian Wu
- Hillman Cancer CenterUniversity of Pittsburgh Medical CenterPittsburghPAUSA
| | - Jeremy N Rich
- Hillman Cancer CenterUniversity of Pittsburgh Medical CenterPittsburghPAUSA
| | - Wenchao Zhou
- Department of Cancer BiologyLerner Research InstituteCleveland ClinicClevelandOHUSA
| | - Shideng Bao
- Department of Cancer BiologyLerner Research InstituteCleveland ClinicClevelandOHUSA,Case Comprehensive Cancer CenterCase Western Reserve University School of MedicineClevelandOHUSA,Center for Cancer Stem Cell ResearchLerner Research InstituteCleveland ClinicClevelandOHUSA
| |
Collapse
|
7
|
Yuan Y, Miao Y, Ren T, Huang F, Qian L, Chen X, Zuo Y, Zhang H, He J, Qiao C, Du Q, Wu Q, Zhang W, Zhu C, Xu Y, Wu D, Shi W, Jiang J, Xu G, Zheng H. High salt activates p97 to reduce host antiviral immunity by restricting Viperin induction. EMBO Rep 2022; 23:e53466. [PMID: 34779558 PMCID: PMC8728598 DOI: 10.15252/embr.202153466] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 10/15/2021] [Accepted: 10/21/2021] [Indexed: 01/07/2023] Open
Abstract
High-salt diets have recently been implicated in hypertension, cardiovascular disease, and autoimmune disease. However, whether and how dietary salt affects host antiviral response remain elusive. Here, we report that high salt induces an instant reduction in host antiviral immunity, although this effect is compromised during a long-term high-salt diet. Further studies reveal that high salt stimulates the acetylation at Lys663 of p97, which promotes the recruitment of ubiquitinated proteins for proteasome-dependent degradation. p97-mediated degradation of the deubiquitinase USP33 results in a deficiency of Viperin protein expression during viral infection, which substantially attenuates host antiviral ability. Importantly, switching to a low-salt diet during viral infection significantly enhances Viperin expression and improves host antiviral ability. These findings uncover dietary salt-induced regulation of ubiquitinated cellular proteins and host antiviral immunity, and could offer insight into the daily consumption of salt-containing diets during virus epidemics.
Collapse
Affiliation(s)
- Yukang Yuan
- International Institute of Infection and ImmunityInstitutes of Biology and Medical SciencesSuzhouChina
- Jiangsu Key Laboratory of Infection and ImmunitySoochow UniversitySuzhouChina
| | - Ying Miao
- International Institute of Infection and ImmunityInstitutes of Biology and Medical SciencesSuzhouChina
- Jiangsu Key Laboratory of Infection and ImmunitySoochow UniversitySuzhouChina
| | - Tengfei Ren
- International Institute of Infection and ImmunityInstitutes of Biology and Medical SciencesSuzhouChina
- Jiangsu Key Laboratory of Infection and ImmunitySoochow UniversitySuzhouChina
| | - Fan Huang
- International Institute of Infection and ImmunityInstitutes of Biology and Medical SciencesSuzhouChina
- Jiangsu Key Laboratory of Infection and ImmunitySoochow UniversitySuzhouChina
| | - Liping Qian
- International Institute of Infection and ImmunityInstitutes of Biology and Medical SciencesSuzhouChina
- Jiangsu Key Laboratory of Infection and ImmunitySoochow UniversitySuzhouChina
| | - Xiangjie Chen
- International Institute of Infection and ImmunityInstitutes of Biology and Medical SciencesSuzhouChina
- Jiangsu Key Laboratory of Infection and ImmunitySoochow UniversitySuzhouChina
| | - Yibo Zuo
- International Institute of Infection and ImmunityInstitutes of Biology and Medical SciencesSuzhouChina
- Jiangsu Key Laboratory of Infection and ImmunitySoochow UniversitySuzhouChina
| | - Hong‐Guang Zhang
- International Institute of Infection and ImmunityInstitutes of Biology and Medical SciencesSuzhouChina
- Jiangsu Key Laboratory of Infection and ImmunitySoochow UniversitySuzhouChina
| | - Jiuyi He
- International Institute of Infection and ImmunityInstitutes of Biology and Medical SciencesSuzhouChina
- Jiangsu Key Laboratory of Infection and ImmunitySoochow UniversitySuzhouChina
| | - Caixia Qiao
- International Institute of Infection and ImmunityInstitutes of Biology and Medical SciencesSuzhouChina
- Jiangsu Key Laboratory of Infection and ImmunitySoochow UniversitySuzhouChina
| | - Qian Du
- International Institute of Infection and ImmunityInstitutes of Biology and Medical SciencesSuzhouChina
- Jiangsu Key Laboratory of Infection and ImmunitySoochow UniversitySuzhouChina
| | - Qiuyu Wu
- International Institute of Infection and ImmunityInstitutes of Biology and Medical SciencesSuzhouChina
- Jiangsu Key Laboratory of Infection and ImmunitySoochow UniversitySuzhouChina
| | - Wei Zhang
- Department of Molecular and Cellular BiologyCollege of Biological ScienceUniversity of GuelphGuelphONCanada
| | - Chuanwu Zhu
- The Affiliated Infectious Diseases Hospital of Soochow UniversitySuzhouChina
| | - Yang Xu
- National Clinical Research Center for Hematologic DiseasesJiangsu Institute of Hematologythe First Affiliated Hospital of Soochow UniversityInstitute of Blood and Marrow TransplantationCollaborative Innovation Center of HematologySoochow UniversitySuzhouChina
| | - Depei Wu
- National Clinical Research Center for Hematologic DiseasesJiangsu Institute of Hematologythe First Affiliated Hospital of Soochow UniversityInstitute of Blood and Marrow TransplantationCollaborative Innovation Center of HematologySoochow UniversitySuzhouChina
| | - Weifeng Shi
- The Third Affiliated Hospital of Soochow UniversityChangzhouChina
| | - Jingting Jiang
- The Third Affiliated Hospital of Soochow UniversityChangzhouChina
| | - Guoqiang Xu
- College of Pharmaceutical SciencesSoochow UniversitySuzhouChina
| | - Hui Zheng
- International Institute of Infection and ImmunityInstitutes of Biology and Medical SciencesSuzhouChina
- Jiangsu Key Laboratory of Infection and ImmunitySoochow UniversitySuzhouChina
| |
Collapse
|
8
|
Wang H, Liu Z, Sun Z, Zhou D, Mao H, Deng G. Ubiquitin specific peptidase 33 promotes cell proliferation and reduces apoptosis through regulation of the SP1/PI3K/AKT pathway in retinoblastoma. Cell Cycle 2021; 20:2066-2076. [PMID: 34470581 DOI: 10.1080/15384101.2021.1970305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
Ubiquitin-specific protease 33 (USP33), a deubiquitinating enzyme (DUB), has been identified to serve as a tumor suppressor or an oncogene in different cancers. However, its role in retinoblastoma (RB) remains unknown. Here, we aimed to uncover USP33 expression profile and function in RB, and disclose the underlying mechanism. USP33 levels in RB tissues and cells were determined using RT-qPCR and western blotting assays. USP33 effects on cell growth, cycle, apoptosis and tumorigenesis were studied using MTT, Edu, cycle and western blotting and in vivo assays. The results showed that USP33 expression levels were elevated in RB tissues and cells as compared with normal retinal tissues and cells. Downregulation of USP33 in RB Y79 and WERI-RB1 cells leaded to significant increases in cell apoptosis, G1 phase arrest and tumorigenesis, and reductions in cell growth and G2 and S phase arrest, as well as inhibited the activation of the PI3K/AKT signaling. SP1 overexpression abolished the roles of USP33 downregulation in modulating the activation of PI3K/AKT signaling, cell growth, apoptosis, and cell cycle. This study uncovered that USP33 promoted the progression of RB through regulation of the SP1/PI3K/AKT pathway.
Collapse
Affiliation(s)
- Hao Wang
- Department of Ophthalmology, The Third People's Hospital of Changzhou, Changzhou City, Jiangsu Province, China
| | - Zhinan Liu
- Department of Ophthalmology, The Third People's Hospital of Changzhou, Changzhou City, Jiangsu Province, China
| | - Zhuo Sun
- Department of Ophthalmology, The Third People's Hospital of Changzhou, Changzhou City, Jiangsu Province, China
| | - Dong Zhou
- Department of Ophthalmology, The Third People's Hospital of Changzhou, Changzhou City, Jiangsu Province, China
| | - Hanyan Mao
- Department of Ophthalmology, The Third People's Hospital of Changzhou, Changzhou City, Jiangsu Province, China
| | - Guohua Deng
- Department of Ophthalmology, The Third People's Hospital of Changzhou, Changzhou City, Jiangsu Province, China
| |
Collapse
|
9
|
Gan Q, Shao J, Cao Y, Lei J, Xie P, Ge J, Hu G. USP33 regulates c-Met expression by deubiquitinating SP1 to facilitate metastasis in hepatocellular carcinoma. Life Sci 2020; 261:118316. [PMID: 32835698 DOI: 10.1016/j.lfs.2020.118316] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 08/05/2020] [Accepted: 08/19/2020] [Indexed: 12/21/2022]
Abstract
AIMS Deubiquitinase ubiquitin-specific protease 33 (USP33) is abnormally expressed in various tumors and participates in tumor progression. However, the expression and biological role of USP33 in hepatocellular carcinoma (HCC) are still unclear. MAIN METHODS We performed immunohistochemistry, western blotting, and qRT-PCR analysis to determine the expression of USP33 in HCC. We then analyzed the effects of USP33 expression on the prognosis of HCC. The roles of USP33 in regulating HCC cell migration and invasion were further explored in vitro. Animal studies were performed to investigate the effects of USP33 on tumor metastasis. RNA sequencing and luciferase reporter and immunofluorescence assays were used to identify the activation of the specificity protein 1 (SP1)/c-Met axis. KEY FINDINGS Here, for the first time, we reported an abnormal increase in the expression of USP33 in HCC tissues and that USP33 may act as a prognostic biomarker for HCC patients. We found that USP33 knockdown inhibited the invasion and metastasis in HCC cells both in vitro and in vivo, which was partly dependent on c-Met. Further investigations revealed that USP33 regulated c-Met expression by enhancing the protein stability of the transcription factor SP1 in HCC cells. Mechanistically, USP33 directly bound SP1 and decreased its ubiquitination, thereby upregulating c-Met expression. SIGNIFICANCE Our results reveal that USP33 acts as the deubiquitinating enzyme of SP1 and contributes to HCC invasion and metastasis through activation of the SP1/c-Met axis. These data indicate a previously unknown function of USP33, which may provide potential targets for the treatment of HCC patients.
Collapse
Affiliation(s)
- Qin Gan
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Jiujiang Hospital of Nanchang University, Jiujiang 332000, China; Department of Hepatobiliary and Pancreatic Surgery, Jiujiang NO.1 People's Hospital, Jiujiang 332000, China
| | - Jia Shao
- Centre for Assisted Reproduction, The First Affiliated Hospital of Nanchang University, Jiangxi, Nanchang 330006, China
| | - Yan Cao
- Department of Gastroenterology, The Fourth Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Jun Lei
- Department of General Surgery, Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Peiyi Xie
- Department of General Surgery, Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Jin Ge
- Department of General Surgery, Second Affiliated Hospital of Nanchang University, Nanchang 330006, China.
| | - Guohui Hu
- Department of General Practice, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China.
| |
Collapse
|
10
|
Xia Y, Wang L, Xu Z, Kong R, Wang F, Yin K, Xu J, Li B, He Z, Wang L, Xu H, Zhang D, Yang L, Wu JY, Xu Z. Reduced USP33 expression in gastric cancer decreases inhibitory effects of Slit2-Robo1 signalling on cell migration and EMT. Cell Prolif 2019; 52:e12606. [PMID: 30896071 PMCID: PMC6536419 DOI: 10.1111/cpr.12606] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 01/26/2019] [Accepted: 02/26/2019] [Indexed: 01/05/2023] Open
Abstract
OBJECTIVES Gastric cancer (GC) is one of the most common cancers in the world, causing a large number of deaths every year. The Slit-Robo signalling pathway, initially discovered for its critical role in neuronal guidance, has recently been shown to modulate tumour invasion and metastasis in several human cancers. However, the role of Slit-Robo signalling and the molecular mechanisms underlying its role in the pathogenesis of gastric cancer remains to be elucidated. MATERIALS AND METHODS Slit2, Robo1 and USP33 expressions were analysed in datasets obtained from the Oncomine database and measured in human gastric cancer specimens. The function of Slit2-Robo1-USP33 signalling on gastric cancer cells migration and epithelial-mesenchymal transition (EMT) was studied both in vitro and in vivo. The mechanism of the interaction between Robo1 and USP33 was explored by co-IP and ubiquitination protein analysis. RESULTS The mRNA and protein levels of Slit2 and Robo1 are lower in GC tissues relative to those in adjacent healthy tissues. Importantly, Slit2 inhibits GC cell migration and suppresses EMT process in a Robo-dependent manner. The inhibitory function of Slit2-Robo1 is mediated by ubiquitin-specific protease 33 (USP33) via deubiquitinating and stabilizing Robo1. USP33 expression is decreased in GC tissues, and reduced USP33 level is correlated with poor patient survival. CONCLUSIONS Our study reveals the inhibitory function of Slit-Robo signalling in GC and uncovers a role of USP33 in suppressing cancer cell migration and EMT by enhancing Slit2-Robo1 signalling. USP33 represents a feasible choice as a prognostic biomarker for GC.
Collapse
MESH Headings
- Aged
- Animals
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/metabolism
- Cell Line, Tumor
- Cell Movement
- Down-Regulation
- Epithelial-Mesenchymal Transition
- Female
- Gene Expression Regulation, Neoplastic
- Heterografts
- Humans
- Intercellular Signaling Peptides and Proteins/genetics
- Intercellular Signaling Peptides and Proteins/metabolism
- Male
- Mice
- Mice, Inbred BALB C
- Mice, Nude
- Middle Aged
- Models, Biological
- Neoplasm Transplantation
- Nerve Tissue Proteins/genetics
- Nerve Tissue Proteins/metabolism
- Prognosis
- Protein Stability
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- RNA, Small Interfering/genetics
- Receptors, Immunologic/genetics
- Receptors, Immunologic/metabolism
- Signal Transduction
- Stomach Neoplasms/genetics
- Stomach Neoplasms/metabolism
- Stomach Neoplasms/pathology
- Ubiquitin Thiolesterase/antagonists & inhibitors
- Ubiquitin Thiolesterase/genetics
- Ubiquitin Thiolesterase/metabolism
- Ubiquitination
- Roundabout Proteins
Collapse
Affiliation(s)
- Yiwen Xia
- Department of Gastric SurgeryThe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Linjun Wang
- Department of Gastric SurgeryThe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Zhipeng Xu
- Department of Gastric SurgeryThe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Ruirui Kong
- State Key Laboratory of Brain and Cognitive Science, Institute of BiophysicsChinese Academy of SciencesBeijingChina
| | - Fei Wang
- State Key Laboratory of Brain and Cognitive Science, Institute of BiophysicsChinese Academy of SciencesBeijingChina
| | - Kai Yin
- Department of General SurgeryAffiliated Hospital of Jiangsu UniversityZhenjiangChina
| | - Jianghao Xu
- Department of Gastric SurgeryThe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Bowen Li
- Department of Gastric SurgeryThe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Zhongyuan He
- Department of Gastric SurgeryThe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Lu Wang
- Department of Gastric SurgeryThe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Hao Xu
- Department of Gastric SurgeryThe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Diancai Zhang
- Department of Gastric SurgeryThe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Li Yang
- Department of Gastric SurgeryThe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Jane Y. Wu
- State Key Laboratory of Brain and Cognitive Science, Institute of BiophysicsChinese Academy of SciencesBeijingChina
- Department of Neurology, Center for Genetic MedicineNorthwestern University Feinberg School of MedicineChicagoIllinois
- Department of NeurologyCenter for Genetic MedicineLurie Cancer CenterChicagoIllinois
| | - Zekuan Xu
- Department of Gastric SurgeryThe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and TreatmentJiangsu Collaborative Innovation Center for Cancer Personalized MedicineSchool of Publich HealthNanjing Medical UniversityNanjingChina
| |
Collapse
|
11
|
王 玉, 张 淑, 穆 淑, 张 柏, 马 树. [ USP33 suppresses lung adenocarcinoma lung cell invasion and metastasis by down-regulating SLIT2/ROBO1 signaling pathway]. Nan Fang Yi Ke Da Xue Xue Bao 2018; 38:956-961. [PMID: 30187867 PMCID: PMC6744049 DOI: 10.3969/j.issn.1673-4254.2018.08.09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 02/03/2018] [Indexed: 11/18/2022]
Abstract
OBJECTIVE To investigate the role of USP33 as an independent prognostic marker in the regulation of SLIT2/ROBO1 signaling pathway to inhibit lung adenocarcinoma invasion and metastasis. METHODS The expression of USP33 in 20 lung adenocarcinoma specimens was detected by qPCR and immunohistochemistry. A549 and SPC-A-1 cells with small interfering RNA (siRNA)-mediated USP33 silencing were examined for changes in invasion and metastasis abilities using scratch assay and Matrigel assay. Western blotting was used to detect the expression of SLIT2 and ROBO1 in the cells after USP33 silencing and the expression of USP33 after interleukin-6 (IL-6) stimulation. RESULTS qPCR and immunohistochemistry showed that USP33 was significantly decreased in lung adenocarcinoma tissues as compared with the adjacent tissues. USP33 silencing in A549 and SPC-A-1 cells significantly promoted the cell migration, invasion and metastasis and obviously down-regulated the expressions of SLIT2 and ROBO1. IL-6 stimulation of the cells obviously enhanced the expression of USP33. CONCLUSIONS USP33 silencing can promote the migration, invasion and metastasis of lung adenocarcinoma cells in vitro, and the mechanism may involve IL-6 and SLIT2/ROBO1 signaling pathways.
Collapse
Affiliation(s)
- 玉环 王
- 南方医科大学南方医院肿瘤科,广东 广州 510515Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - 淑华 张
- 南方医科大学南方医院肿瘤科,广东 广州 510515Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - 淑坤 穆
- 南方医科大学南方医院肿瘤科,广东 广州 510515Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - 柏深 张
- 南方医科大学南方医院肿瘤科,广东 广州 510515Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - 树东 马
- 南方医科大学南方医院肿瘤科,广东 广州 510515Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
- 新疆喀什地区第一人民医院肿瘤中心,新疆 喀什 844000Cancer Center of the First People's Hospital of Kashi, Kashi 844000, China
| |
Collapse
|
12
|
Jia M, Guo Y, Lu X. USP33 is a Biomarker of Disease Recurrence in Papillary Thyroid Carcinoma. Cell Physiol Biochem 2018; 45:2044-2053. [PMID: 29533940 DOI: 10.1159/000488041] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Accepted: 12/10/2017] [Indexed: 12/17/2023] Open
Abstract
BACKGROUND/AIMS To investigate the clinical significance and functional mechanisms of deubiquitinase USP33 in papillary thyroid carcinoma (PTC). METHODS Immunohistochemistry staining was conducted to explore the expression of USP33 in PTC tissues and adjacent normal thyroid tissues. Patients' prognosis was evaluated by disease-free survival. The prognostic role of USP33 was tested by univariate and multivariate analyses. To confirm the effect of USP33 in cell proliferation and invasion, overexpression and knockdown of USP33 were performed in two PTC cell lines. Besides, cell cycle, immunoprecipitation, and apoptosis experiments were conducted to further explore the signaling pathways. RESULTS By analyzing series of 158 PTC tissues, we found that USP33 was down-regulated in tumor tissue compared with normal thyroid tissues, which was closely associated with lymph node metastasis (P<0.001). In particular, univariate and multivariate analyses indicated that USP33 was an independent prognostic biomarker for PTC, low USP33 expression indicated high recurrence risk. Cellular studies with TPC-1 and BCPAP cells demonstrated that USP33 can attenuate the cell capacities of proliferation, migration and invasion. Fluorescence-activated cell sorting experiment found no significant effect of USP33 on cell cycle, whereas the apoptotic caspase proteins were activated by USP33-overexpression. Moreover, the interaction between USP33 and Robo1 protein was identified, and knockdown of Robo1 enhancing the oncogenic effect upon USP33-knockdown, suggesting that USP33 may inhibit tumor progression through Robo1 signaling. CONCLUSIONS Our data demonstrated that USP33 downregulation in PTC tissues was correlated with poor clinical outcome, which may serve as a novel biomarker and potential therapeutic target.
Collapse
MESH Headings
- Adult
- Biomarkers, Tumor/metabolism
- Carcinoma, Papillary/metabolism
- Carcinoma, Papillary/mortality
- Carcinoma, Papillary/pathology
- Caspases/metabolism
- Cell Line, Tumor
- Cell Movement
- Cell Proliferation
- Cell Survival
- Disease-Free Survival
- Down-Regulation
- Female
- Humans
- Kaplan-Meier Estimate
- Male
- Middle Aged
- Neoplasm Recurrence, Local
- Neoplasm Staging
- Nerve Tissue Proteins/antagonists & inhibitors
- Nerve Tissue Proteins/genetics
- Nerve Tissue Proteins/metabolism
- Prognosis
- RNA Interference
- RNA, Small Interfering/metabolism
- Receptors, Immunologic/antagonists & inhibitors
- Receptors, Immunologic/genetics
- Receptors, Immunologic/metabolism
- Signal Transduction
- Thyroid Cancer, Papillary
- Thyroid Neoplasms/metabolism
- Thyroid Neoplasms/mortality
- Thyroid Neoplasms/pathology
- Ubiquitin Thiolesterase/antagonists & inhibitors
- Ubiquitin Thiolesterase/genetics
- Ubiquitin Thiolesterase/metabolism
- Roundabout Proteins
Collapse
Affiliation(s)
- Meng Jia
- Department of Thyroid Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yaman Guo
- Department of Endocrinology, Henan Provincial People's Hospital, Zhengzhou, China
| | - Xiubo Lu
- Department of Thyroid Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| |
Collapse
|
13
|
Liu H, Zhang Q, Li K, Gong Z, Liu Z, Xu Y, Swaney MH, Xiao K, Chen Y. Prognostic significance of USP33 in advanced colorectal cancer patients: new insights into β-arrestin-dependent ERK signaling. Oncotarget 2018; 7:81223-81240. [PMID: 27835898 PMCID: PMC5348388 DOI: 10.18632/oncotarget.13219] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Accepted: 10/14/2016] [Indexed: 01/05/2023] Open
Abstract
Patients with liver metastases of colorectal cancer (CRCLM) have a poorer prognosis compared to colorectal cancer (CRC) patients in local stage. Evaluating the recurrence and overall survival of advanced patients is critical in improving disease treatment and clinical outcome. Here we investigated the expression pattern of USP33, a deubiquitinating enzyme, in both primary CRC tissues and liver metastases tissues. Univariate and multivariate analyses identified that low expression of USP33 in CRCLM tissues indicated high recurrence risk and poor overall prognosis. Overexpression of USP33 can significantly inhibit cell proliferation, migration, and invasion. On the other hand, USP33 knock-down promoted cell proliferation and invasion under SDF-1 stimulation; whereas dynasore (an internalization inhibitor) pretreatment in USP33 silencing cells showed a distinct antipromoting effect, revealing the participation of CXCR4 internalization in regulating tumor progress. Further results verified that USP33 can deubiquitinate β-arrestin2, subsequently block the internalization of SDF-1-stimulated CXCR4, and disrupt β-arrestin-dependent ERK activation. The existence and functions of β-arrestin-dependent signaling have been previously determined in several Gs-coupled receptors, such as β2-adrenergic receptor and angiotensin receptor subtype 1a; however, little is known about this in Gi-coupled receptors. Our study not only established USP33 as a novel prognosis biomarker in advanced CRCLM patients, but also highlighted the significance of β-arrestin-dependent ERK signaling in cancer development.
Collapse
Affiliation(s)
- Hongda Liu
- Department of General Surgery, Qilu Hospital Affiliated to Shandong University, Jinan, Shandong 250012, China.,Department of Biochemistry and Molecular Biology, School of Medicine, Shandong University, Jinan, Shandong 250012, China.,Department of Pharmacology and Chemical Biology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, USA
| | - Qun Zhang
- Department of Respiratory Medicine, Jinling Hospital, Nanjing University School of Medicine, Nanjing 210002, China
| | - Kangshuai Li
- Department of General Surgery, Qilu Hospital Affiliated to Shandong University, Jinan, Shandong 250012, China
| | - Zheng Gong
- Department of Biochemistry and Molecular Biology, School of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Zhaochen Liu
- Department of General Surgery, Qilu Hospital Affiliated to Shandong University, Jinan, Shandong 250012, China
| | - Yunfei Xu
- Department of General Surgery, Qilu Hospital Affiliated to Shandong University, Jinan, Shandong 250012, China
| | - Mary Hannah Swaney
- Pennsylvania State University, University Park, Pennsylvania, 16802, USA
| | - Kunhong Xiao
- Department of Pharmacology and Chemical Biology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, USA
| | - Yuxin Chen
- Department of General Surgery, Qilu Hospital Affiliated to Shandong University, Jinan, Shandong 250012, China
| |
Collapse
|
14
|
Cheng Q, Yuan Y, Li L, Guo T, Miao Y, Ren Y, Liu J, Feng Q, Wang X, Zhao P, Zuo Y, Qian L, Zhang L, Zheng H. Deubiquitinase USP33 is negatively regulated by β-TrCP through ubiquitin-dependent proteolysis. Exp Cell Res 2017; 356:1-7. [PMID: 28506875 DOI: 10.1016/j.yexcr.2017.05.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 05/03/2017] [Accepted: 05/12/2017] [Indexed: 10/19/2022]
Abstract
Ubiquitin-mediated proteolysis regulates cellular levels of various proteins, and therefore plays important roles in controlling cell signaling and disease progression. The Skp1-Cul1-F-box ubiquitin ligase β-TrCP is recognized as an important negative regulator for numerous key signaling proteins. Recently, the deubiquitinases (DUBs) have turned out to be essential to regulate signaling pathways related to human diseases. However, whether β-TrCP is able to regulate the deubiquitinase family members remains largely unexplored. Here, we found that β-TrCP downregulated cellular levels of endogenous USP33. We also revealed that β-TrCP interacted with USP33 independently of the classic binding motif for β-TrCP, and mediated USP33 degradation via the ubiquitin proteasome pathway. Furthermore, we found that the WD40 motif of β-TrCP and 201-400 amino acid motif of USP33 are required for the interaction between β-TrCP and USP33. Consequently, β-TrCP attenuated USP33-mediated inhibition of cell proliferation and cell invasion. Taken together, our study clarified that the E3 ligase β-TrCP regulates cellular USP33 levels by the ubiquitin-proteasomal proteolysis.
Collapse
Affiliation(s)
- Qiao Cheng
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, Jiangsu Province 215123, China; Jiangsu Key Laboratory of Infection and Immunity, Soochow University, Suzhou, Jiangsu Province 215123, China
| | - Yukang Yuan
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, Jiangsu Province 215123, China; Jiangsu Key Laboratory of Infection and Immunity, Soochow University, Suzhou, Jiangsu Province 215123, China
| | - Lemin Li
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, Jiangsu Province 215123, China; Jiangsu Key Laboratory of Infection and Immunity, Soochow University, Suzhou, Jiangsu Province 215123, China
| | - Tingting Guo
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, Jiangsu Province 215123, China; Jiangsu Key Laboratory of Infection and Immunity, Soochow University, Suzhou, Jiangsu Province 215123, China
| | - Ying Miao
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, Jiangsu Province 215123, China; Jiangsu Key Laboratory of Infection and Immunity, Soochow University, Suzhou, Jiangsu Province 215123, China
| | - Ying Ren
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, Jiangsu Province 215123, China; Jiangsu Key Laboratory of Infection and Immunity, Soochow University, Suzhou, Jiangsu Province 215123, China
| | - Jin Liu
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, Jiangsu Province 215123, China; Jiangsu Key Laboratory of Infection and Immunity, Soochow University, Suzhou, Jiangsu Province 215123, China
| | - Qian Feng
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, Jiangsu Province 215123, China; Jiangsu Key Laboratory of Infection and Immunity, Soochow University, Suzhou, Jiangsu Province 215123, China
| | - Xiaofang Wang
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, Jiangsu Province 215123, China; Jiangsu Key Laboratory of Infection and Immunity, Soochow University, Suzhou, Jiangsu Province 215123, China
| | - Peng Zhao
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, Jiangsu Province 215123, China; Jiangsu Key Laboratory of Infection and Immunity, Soochow University, Suzhou, Jiangsu Province 215123, China
| | - Yibo Zuo
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, Jiangsu Province 215123, China; Jiangsu Key Laboratory of Infection and Immunity, Soochow University, Suzhou, Jiangsu Province 215123, China
| | - Liping Qian
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, Jiangsu Province 215123, China; Jiangsu Key Laboratory of Infection and Immunity, Soochow University, Suzhou, Jiangsu Province 215123, China
| | - Liting Zhang
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, Jiangsu Province 215123, China; Jiangsu Key Laboratory of Infection and Immunity, Soochow University, Suzhou, Jiangsu Province 215123, China
| | - Hui Zheng
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, Jiangsu Province 215123, China; Jiangsu Key Laboratory of Infection and Immunity, Soochow University, Suzhou, Jiangsu Province 215123, China.
| |
Collapse
|
15
|
Huang Z, Wen P, Kong R, Cheng H, Zhang B, Quan C, Bian Z, Chen M, Zhang Z, Chen X, Du X, Liu J, Zhu L, Fushimi K, Hua D, Wu JY. USP33 mediates Slit-Robo signaling in inhibiting colorectal cancer cell migration. Int J Cancer 2015; 136:1792-802. [PMID: 25242263 PMCID: PMC4323690 DOI: 10.1002/ijc.29226] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Revised: 08/16/2014] [Accepted: 09/16/2014] [Indexed: 12/22/2022]
Abstract
Originally discovered in neuronal guidance, the Slit-Robo pathway is emerging as an important player in human cancers. However, its involvement and mechanism in colorectal cancer (CRC) remains to be elucidated. Here, we report that Slit2 expression is reduced in CRC tissues compared with adjacent noncancerous tissues. Extensive promoter hypermethylation of the Slit2 gene has been observed in CRC cells, which provides a mechanistic explanation for the Slit2 downregulation in CRC. Functional studies showed that Slit2 inhibits CRC cell migration in a Robo-dependent manner. Robo-interacting ubiquitin-specific protease 33 (USP33) is required for the inhibitory function of Slit2 on CRC cell migration by deubiquitinating and stabilizing Robo1. USP33 expression is downregulated in CRC samples, and reduced USP33 mRNA levels are correlated with increased tumor grade, lymph node metastasis and poor patient survival. Taken together, our data reveal USP33 as a previously unknown tumor-suppressing gene for CRC by mediating the inhibitory function of Slit-Robo signaling on CRC cell migration. Our work suggests the potential value of USP33 as an independent prognostic marker of CRC.
Collapse
Affiliation(s)
- Zhaohui Huang
- Wuxi Oncology Institute, the Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, 214062, China
- Department of Neurology, Center for Genetic Medicine, Lurie Cancer Center, Northwestern University Feinberg School of Medicine, 303 E. Chicago Ave., Chicago, IL 60611, USA
| | - Pushuai Wen
- State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Ruirui Kong
- State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Haipeng Cheng
- Department of Neurology, Center for Genetic Medicine, Lurie Cancer Center, Northwestern University Feinberg School of Medicine, 303 E. Chicago Ave., Chicago, IL 60611, USA
| | - Binbin Zhang
- Wuxi Oncology Institute, the Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, 214062, China
| | - Cao Quan
- Wuxi Oncology Institute, the Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, 214062, China
| | - Zehua Bian
- Wuxi Oncology Institute, the Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, 214062, China
| | - Mengmeng Chen
- State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Zhenfeng Zhang
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaoping Chen
- Department of Neurology, Center for Genetic Medicine, Lurie Cancer Center, Northwestern University Feinberg School of Medicine, 303 E. Chicago Ave., Chicago, IL 60611, USA
| | - Xiang Du
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Jianghong Liu
- State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Li Zhu
- State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Kazuo Fushimi
- Department of Neurology, Center for Genetic Medicine, Lurie Cancer Center, Northwestern University Feinberg School of Medicine, 303 E. Chicago Ave., Chicago, IL 60611, USA
| | - Dong Hua
- Wuxi Oncology Institute, the Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, 214062, China
| | - Jane Y. Wu
- Department of Neurology, Center for Genetic Medicine, Lurie Cancer Center, Northwestern University Feinberg School of Medicine, 303 E. Chicago Ave., Chicago, IL 60611, USA
- State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| |
Collapse
|
16
|
Chan NC, den Besten W, Sweredoski MJ, Hess S, Deshaies RJ, Chan DC. Degradation of the deubiquitinating enzyme USP33 is mediated by p97 and the ubiquitin ligase HERC2. J Biol Chem 2014; 289:19789-98. [PMID: 24855649 DOI: 10.1074/jbc.m114.569392] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Because the deubiquitinating enzyme USP33 is involved in several important cellular processes (β-adrenergic receptor recycling, centrosome amplification, RalB signaling, and cancer cell migration), its levels must be carefully regulated. Using quantitative mass spectrometry, we found that the intracellular level of USP33 is highly sensitive to the activity of p97. Knockdown or chemical inhibition of p97 causes robust accumulation of USP33 due to inhibition of its degradation. The p97 adaptor complex involved in this function is the Ufd1-Npl4 heterodimer. Furthermore, we identified HERC2, a HECT domain-containing E3 ligase, as being responsible for polyubiquitination of USP33. Inhibition of p97 causes accumulation of polyubiquitinated USP33, suggesting that p97 is required for postubiquitination processing. Thus, our study has identified several key molecules that control USP33 degradation within the ubiquitin-proteasome system.
Collapse
Affiliation(s)
- Nickie C Chan
- From the Division of Biology and Biological Engineering, the Howard Hughes Medical Institute, and
| | | | - Michael J Sweredoski
- From the Division of Biology and Biological Engineering, the Proteome Exploration Laboratory/Beckman Institute, California Institute of Technology, Pasadena, California 91125
| | - Sonja Hess
- From the Division of Biology and Biological Engineering, the Proteome Exploration Laboratory/Beckman Institute, California Institute of Technology, Pasadena, California 91125
| | - Raymond J Deshaies
- From the Division of Biology and Biological Engineering, the Howard Hughes Medical Institute, and
| | - David C Chan
- From the Division of Biology and Biological Engineering, the Howard Hughes Medical Institute, and
| |
Collapse
|