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Wei H, Li X, Liu F, Li Y, Luo B, Huang X, Chen H, Wen B, Ma P. Curcumin inhibits the development of colorectal cancer via regulating the USP4/LAMP3 pathway. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024; 397:1749-1762. [PMID: 37728623 DOI: 10.1007/s00210-023-02721-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 09/13/2023] [Indexed: 09/21/2023]
Abstract
In this study, we aimed to explore the effects of curcumin on the progression of colorectal cancer and its underlying mechanisms involved. Cell proliferation, apoptosis and invasion were determined through CCK-8 assay, colony formation assay, EdU assay, flow cytometry, and transwell invasion assay, respectively. The protein expression of Bax, MMP2, USP4 and LAMP3 was measured using western blot. Pearson correlation coefficient was used to evaluate the relationship between USP4 and LAMP3. Co-IP was also conducted to determine the interaction between USP4 and LAMP3. Xenograft tumor model was established to explore the role of curcumin in colorectal cancer in vivo. IHC was utilized to measure the expression of Bax, MMP2, USP4 and LAMP3 in tumor tissues from mice. Curcumin significantly accelerated cell apoptosis, and inhibited cell proliferation and invasion in LoVo and HCT-116 cells. LAMP3 was augmented in colorectal cancer tissues and cells, and curcumin could reduce the expression of LAMP3. Curcumin decreased LAMP3 expression to exhibit the inhibition role in the progression of colorectal cancer. USP4 interacted with LAMP3, and positively regulated LAMP3 expression in colorectal cancer cells. LAMP3 overexpression could reverse the suppressive effects of USP4 knockdown on the development of colorectal cancer. Curcumin downregulated USP4 to impeded the progression of colorectal cancer via repressing LAMP3 expression. In addition, curcumin obviously restrained tumor growth in mice through downregulating USP4 and LAMP3 expression. These data indicated that curcumin exert the anti-tumor effects on the development of colorectal cancer through modulating the USP4/LAMP3 pathway.
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Affiliation(s)
- Hai Wei
- Department of Gastrointestinal Surgery, Nanyang First People's Hospital, Nanyang, 473000, China
| | - Xianzhe Li
- Department of General Surgery, Nanshi Hospital, Nanyang, 473065, China
| | - Fu Liu
- Department of Gastrointestinal Surgery, Nanyang First People's Hospital, Nanyang, 473000, China
| | - Yuan Li
- Department of Gastrointestinal Surgery, Nanyang First People's Hospital, Nanyang, 473000, China
| | - Bin Luo
- Department of Gastrointestinal Surgery, Nanyang First People's Hospital, Nanyang, 473000, China
| | - Xin Huang
- Department of Gastrointestinal Surgery, Nanyang First People's Hospital, Nanyang, 473000, China
| | - Hang Chen
- Department of Gastrointestinal Surgery, Nanyang First People's Hospital, Nanyang, 473000, China
| | - Bo Wen
- Department of Gastrointestinal Surgery, Nanyang First People's Hospital, Nanyang, 473000, China
| | - Pei Ma
- Department of Gastrointestinal Surgery, Nanyang First People's Hospital, Nanyang, 473000, China.
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Liu C, Zhou S, Tang W. USP14 promotes the cancer stem-like cell properties of OSCC via promoting SOX2 deubiquitination. Oral Dis 2024. [PMID: 38376172 DOI: 10.1111/odi.14896] [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: 11/27/2023] [Revised: 01/14/2024] [Accepted: 02/06/2024] [Indexed: 02/21/2024]
Abstract
OBJECTIVE USP14 (Ubiquitin-specific-processing protease 14) is a deubiquitinating enzyme with oncogenic effects in oral squamous cell carcinoma (OSCC). This study aims to identify new substrates of USP14 and elucidate their role in modulating cancer stem-like cells (CSCs) in OSCC. MATERIALS AND METHODS Bioinformatics prediction and docking were performed using UbiBrowser 2.0 and HDOCK, respectively. OSCC cell lines and patient-derived cells were used for experimental validation, employing co-immunoprecipitation, cycloheximide chase assays, and tumor sphere formation to evaluate the effects of USP14 on SOX2 stability, ubiquitination, and CSC phenotypes. RESULTS USP14 upregulation was associated with worse overall survival and progression-free interval in OSCC. USP14 interacted with SOX2 with its ubiquitin carboxyl-terminal hydrolase domain. USP14 knockdown impaired SOX2 stability by increasing its polyubiquitination. Ectopic overexpression of wild-type USP14, but not the hydrolase-deficient-mutant USP14C114A , enhanced SOX2 stability by reducing polyubiquitination. USP14 knockdown suppressed OSCC cell proliferation, colony formation, and tumor sphere formation in vitro and tumor growth in vivo. However, the reduction of CSC markers following USP14 knockdown was mitigated by overexpressing SOX2. These findings were verified in OSCC patient-derived CSC cells. CONCLUSION This study revealed a USP14-SOX2 axis regulating the CSC properties of OSCC.
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Affiliation(s)
- Chang Liu
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Shijie Zhou
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Wei Tang
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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Zhang H, Han Y, Xiao W, Gao Y, Sui Z, Ren P, Meng F, Tang P, Yu Z. USP4 promotes the proliferation, migration, and invasion of esophageal squamous cell carcinoma by targeting TAK1. Cell Death Dis 2023; 14:730. [PMID: 37949874 PMCID: PMC10638297 DOI: 10.1038/s41419-023-06259-0] [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: 02/13/2023] [Revised: 10/21/2023] [Accepted: 10/31/2023] [Indexed: 11/12/2023]
Abstract
Ubiquitin-specific protease 4 (USP4) represents a potential oncogene involved in various human cancers. Nevertheless, the biological roles and precise mechanism of USP4 in esophageal squamous cell carcinoma (ESCC) progression are not understood. Here, USP4 expression was found to be markedly upregulated in ESCC tumor tissues and cells. Loss- and gain-of-function assays suggested that USP4 silencing inhibited ESCC cell proliferation, migration, and invasion, while USP4 overexpression promoted these behaviors. Consistently, USP4 silencing repressed tumor growth and metastasis in an ESCC nude mouse model in vivo. As a target molecule of USP4, transforming growth factor-β-activated kinase 1 (TAK1) also showed high expression in ESCC. Moreover, we observed that USP4 specifically interacted with TAK1 and stabilized TAK1 protein levels via deubiquitination in ESCC cells. Importantly, USP4 promotes ESCC proliferation, migration, and invasion via the MEK/ERK signaling pathway and can be inhibited by U0126. Neutral red (NR), an inhibitor of USP4 can suppress ESCC progression in vitro and in vivo. Overall, this study revealed that USP4/TAK1 plays crucial roles in ESCC progression by modulating proliferation, migration, and invasion, and USP4 might be a potential therapeutic target in ESCC.
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Affiliation(s)
- Hongdian Zhang
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Digestive Cancer of Tianjin, Tianjin, 300060, China
| | - Youming Han
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Digestive Cancer of Tianjin, Tianjin, 300060, China
- Binhai Hospital of Tianjin Medical University General Hospital, Tianjin, 300456, China
| | - Wanyi Xiao
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Digestive Cancer of Tianjin, Tianjin, 300060, China
| | - Yongyin Gao
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Digestive Cancer of Tianjin, Tianjin, 300060, China
| | - Zhilin Sui
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Digestive Cancer of Tianjin, Tianjin, 300060, China
- National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and PeKing Union Medical College, Shenzhen, 518116, China
| | - Peng Ren
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Digestive Cancer of Tianjin, Tianjin, 300060, China
| | - Fanbiao Meng
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Digestive Cancer of Tianjin, Tianjin, 300060, China.
| | - Peng Tang
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Digestive Cancer of Tianjin, Tianjin, 300060, China.
| | - Zhentao Yu
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Digestive Cancer of Tianjin, Tianjin, 300060, China.
- National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and PeKing Union Medical College, Shenzhen, 518116, China.
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Scheiflinger A, Al-Gboore S, Jank BJ, Brkic F, Kadletz-Wanke L, Kenner L, Heiduschka G, Schnoell J. High USP4 mRNA is associated with an HPV-positive status in head and neck squamous cell carcinoma patients. J Cancer Res Clin Oncol 2023; 149:10675-10683. [PMID: 37308746 PMCID: PMC10423105 DOI: 10.1007/s00432-023-04872-2] [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: 04/27/2023] [Accepted: 05/19/2023] [Indexed: 06/14/2023]
Abstract
INTRODUCTION Head and neck squamous cell carcinoma (HNSCC) is among the most common cancers in the world with a low survival rate and common diagnosis at late stages. Deubiquitination of proteins is involved in tumor growth, metastasis, apoptosis, and immunosuppressive pathways. The impact of the ubiquitin-specific protease (USP4) on survival was only scarcely investigated so far. The goal of our research was to analyze the association of USP4 expression with prognosis and clinicopathological features in HNSCC. METHODS USP4 mRNA levels were derived from The Cancer Genome Atlas (TCGA) for a cohort of 510 patients. Protein expression of USP4 was analyzed by immunohistochemistry in a second cohort of 113 patients. Associations between USP4 levels and overall survival, disease-free survival and clinicopathological data were analyzed. RESULTS High levels of USP4 mRNA were associated with prolonged overall survival in univariable analysis. There was no more association with survival after correction for the confounders HPV, stage and smoker status. High USP4 mRNA levels were linked to a lower T-stage, the patient's age at diagnosis, and a positive HPV status. USP4 protein levels were not associated with prognosis or other features. CONCLUSION Since high USP4 mRNA was not an independent prognostic marker, we assume that the association is a result of the correlation of high USP4 mRNA with an HPV-positive status. Therefore, further investigation of USP4 mRNA and its association with the HPV status of HNSCC patients is warranted.
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Affiliation(s)
- Alexandra Scheiflinger
- Department of Otorhinolaryngology, Head and Neck Surgery, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
| | - Sega Al-Gboore
- Department of Otorhinolaryngology, Head and Neck Surgery, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
| | - Bernhard J Jank
- Department of Otorhinolaryngology, Head and Neck Surgery, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
| | - Faris Brkic
- Department of Otorhinolaryngology, Head and Neck Surgery, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
| | - Lorenz Kadletz-Wanke
- Department of Otorhinolaryngology, Head and Neck Surgery, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
| | - Lukas Kenner
- Department of Pathology, Medical University of Vienna, Vienna, Austria
- Christian Doppler Laboratory for Applied Metabolomics, Vienna, Austria
- Unit of Laboratory Animal Pathology, University of Veterinary Medicine, Vienna, Austria
- CBmed GmbH - Center for Biomarker Research in Medicine, Graz, Styria, Austria
| | - Gregor Heiduschka
- Department of Otorhinolaryngology, Head and Neck Surgery, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria.
| | - Julia Schnoell
- Department of Otorhinolaryngology, Head and Neck Surgery, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
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Chen Y, Guo Y, Yuan M, Guo S, Cui S, Chen D. USP4 promotes the proliferation and glucose metabolism of gastric cancer cells by upregulating PKM2. PLoS One 2023; 18:e0290688. [PMID: 37624791 PMCID: PMC10456134 DOI: 10.1371/journal.pone.0290688] [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: 07/02/2023] [Accepted: 08/14/2023] [Indexed: 08/27/2023] Open
Abstract
BACKGROUND The pyruvate kinase enzyme PKM2 catalyzes the final step in glycolysis and converts phosphoenolpyruvate (PEP) to pyruvate. PKM2 is often overexpressed in cancer and plays a role in the Warburg effect. The expression of PKM2 can be regulated at different levels. While it has been proven that PKM2 can be regulated by ubiquitination, little is known about its de-ubiquitination regulation. METHODS Immunoprecipitation was applied to identify the PKM2 interaction protein and to determine the interaction region between PKM2 and USP4. Immunofluorescence was performed to determine the cellular localization of USP4 and PKM2. The regulation of PKM2 by USP4 was examined by western blot and ubiquitination assay. MTT assays, glucose uptake, and lactate production were performed to analyze the biological effects of USP4 in gastric cancer cells. RESULTS USP4 interacts with PKM2 and catalyzes the de-ubiquitination of PKM2. Overexpression of USP4 promotes cell proliferation, glucose uptake, and lactate production in gastric cancer cells. Knockdown of USP4 reduces PKM2 levels and results in a reduction in cell proliferation and the glycolysis rate. CONCLUSIONS USP4 plays a tumor-promoting role in gastric cancer cells by regulating PKM2.
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Affiliation(s)
- Yuanyuan Chen
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo, China
| | - Yunfei Guo
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo, China
| | - Mei Yuan
- School of Life Sciences, Jiangsu Normal University, Xuzhou, China
| | - Song Guo
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo, China
| | - Shuaishuai Cui
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo, China
| | - Dahu Chen
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo, China
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Yang YC, Zhao CJ, Jin ZF, Zheng J, Ma LT. Targeted therapy based on ubiquitin-specific proteases, signalling pathways and E3 ligases in non-small-cell lung cancer. Front Oncol 2023; 13:1120828. [PMID: 36969062 PMCID: PMC10036052 DOI: 10.3389/fonc.2023.1120828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Accepted: 02/01/2023] [Indexed: 03/11/2023] Open
Abstract
Lung cancer is one of the most common malignant tumours worldwide, with the highest mortality rate. Approximately 1.6 million deaths owing to lung cancer are reported annually; of which, 85% of deaths occur owing to non-small-cell lung cancer (NSCLC). At present, the conventional treatment methods for NSCLC include radiotherapy, chemotherapy, targeted therapy and surgery. However, drug resistance and tumour invasion or metastasis often lead to treatment failure. The ubiquitin–proteasome pathway (UPP) plays an important role in the occurrence and development of tumours. Upregulation or inhibition of proteins or enzymes involved in UPP can promote or inhibit the occurrence and development of tumours, respectively. As regulators of UPP, ubiquitin-specific proteases (USPs) primarily inhibit the degradation of target proteins by proteasomes through deubiquitination and hence play a carcinogenic or anticancer role. This review focuses on the role of USPs in the occurrence and development of NSCLC and the potential of corresponding targeted drugs, PROTACs and small-molecule inhibitors in the treatment of NSCLC.
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Affiliation(s)
- Yu-Chen Yang
- Department of Traditional Chinese Medicine, Tangdu Hospital, Air Force Medical University, Xi’an, China
| | - Can-Jun Zhao
- Department of Traditional Chinese Medicine, Tangdu Hospital, Air Force Medical University, Xi’an, China
| | - Zhao-Feng Jin
- School of Psychology, Weifang Medical University, Weifang, China
| | - Jin Zheng
- Department of Traditional Chinese Medicine, Tangdu Hospital, Air Force Medical University, Xi’an, China
- *Correspondence: Li-Tian Ma, ; Jin Zheng,
| | - Li-Tian Ma
- Department of Traditional Chinese Medicine, Tangdu Hospital, Air Force Medical University, Xi’an, China
- Department of Gastroenterology, Tangdu Hospital, Air Force Medical University, Xi’an, China
- *Correspondence: Li-Tian Ma, ; Jin Zheng,
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Hartigan CR, Tong KP, Liu D, Laurie SJ, Ford ML. TIGIT agonism alleviates costimulation blockade-resistant rejection in a regulatory T cell-dependent manner. Am J Transplant 2023; 23:180-189. [PMID: 36695691 PMCID: PMC10062175 DOI: 10.1016/j.ajt.2022.12.011] [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: 06/05/2022] [Accepted: 10/16/2022] [Indexed: 01/15/2023]
Abstract
Belatacept-based immunosuppression in kidney transplantation confers fewer off-target toxicities than calcineurin inhibitors but comes at a cost of increased incidence and severity of acute rejection, potentially due to its deleterious effect on both the number and function of Foxp3+ regulatory T cells (Tregs). TIGIT is a CD28 family coinhibitory receptor expressed on several subsets of immune cells including Tregs. We hypothesized that coinhibition through TIGIT signaling could function to ameliorate costimulation blockade-resistant rejection. The results demonstrate that treatment with an agonistic anti-TIGIT antibody, when combined with costimulation blockade by CTLA-4Ig, can prolong allograft survival in a murine skin graft model compared with CTLA-4Ig alone. Further, this prolongation of graft survival is accompanied by an increase in the frequency and number of graft-infiltrating Tregs and a concomitant reduction in the number of CD8+ T cells in the graft. Through the use of Treg-specific TIGIT conditional knockout animals, we demonstrated that the TIGIT-mediated reduction in the graft-infiltrating CD8+ T cell response is dependent on signaling of TIGIT on Foxp3+ Tregs. Our results highlight both the key functional role of TIGIT on Foxp3+ Tregs under conditions in which CTLA-4 is blocked and the therapeutic potential of TIGIT agonism to optimize costimulation blockade-based immunosuppression.
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Affiliation(s)
- Christina R Hartigan
- Department of Surgery and Emory Transplant Center, Suite 5105, 101 Woodruff Circle, Atlanta, Georgia 30322
| | - Katherine P Tong
- Department of Surgery and Emory Transplant Center, Suite 5105, 101 Woodruff Circle, Atlanta, Georgia 30322
| | - Danya Liu
- Department of Surgery and Emory Transplant Center, Suite 5105, 101 Woodruff Circle, Atlanta, Georgia 30322
| | - Sonia J Laurie
- Department of Surgery and Emory Transplant Center, Suite 5105, 101 Woodruff Circle, Atlanta, Georgia 30322
| | - Mandy L Ford
- Department of Surgery and Emory Transplant Center, Suite 5105, 101 Woodruff Circle, Atlanta, Georgia 30322.
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Jin S, Kudo Y, Horiguchi T. The Role of Deubiquitinating Enzyme in Head and Neck Squamous Cell Carcinoma. Int J Mol Sci 2022; 24:ijms24010552. [PMID: 36613989 PMCID: PMC9820089 DOI: 10.3390/ijms24010552] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 12/20/2022] [Accepted: 12/24/2022] [Indexed: 12/30/2022] Open
Abstract
Ubiquitination and deubiquitination are two popular ways for the post-translational modification of proteins. These two modifications affect intracellular localization, stability, and function of target proteins. The process of deubiquitination is involved in histone modification, cell cycle regulation, cell differentiation, apoptosis, endocytosis, autophagy, and DNA repair after damage. Moreover, it is involved in the processes of carcinogenesis and cancer development. In this review, we discuss these issues in understanding deubiquitinating enzyme (DUB) function in head and neck squamous cell carcinoma (HNSCC), and their potential therapeutic strategies for HNSCC patients are also discussed.
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Song J, Yuan X, Piao L, Wang J, Wang P, Zhuang M, Liu J, Liu Z. Cellular functions and molecular mechanisms of ubiquitination in osteosarcoma. Front Oncol 2022; 12:1072701. [DOI: 10.3389/fonc.2022.1072701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 11/17/2022] [Indexed: 12/05/2022] Open
Abstract
Although some advances have been made in the treatment of osteosarcoma in recent years, surgical resection remains the mainstream treatment. Initial and early diagnosis of osteosarcoma could be very difficult to achieve due to the insufficient sensitivity for the means of examination. The distal metastasis of osteosarcoma also predicts the poor prognosis of osteosarcoma. In order to solve this series of problems, people begin to discover a new method of diagnosing and treating osteosarcoma. Ubiquitination, as an emerging posttranslational modification, has been shown to be closely related to osteosarcoma in studies over the past decades. In general, this review describes the cellular functions and molecular mechanisms of ubiquitination during the development of osteosarcoma.
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Role of K63-linked ubiquitination in cancer. Cell Death Dis 2022; 8:410. [PMID: 36202787 PMCID: PMC9537175 DOI: 10.1038/s41420-022-01204-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 09/16/2022] [Accepted: 09/26/2022] [Indexed: 11/08/2022]
Abstract
Ubiquitination is a critical type of post-translational modifications, of which K63-linked ubiquitination regulates interaction, translocation, and activation of proteins. In recent years, emerging evidence suggest involvement of K63-linked ubiquitination in multiple signaling pathways and various human diseases including cancer. Increasing number of studies indicated that K63-linked ubiquitination controls initiation, development, invasion, metastasis, and therapy of diverse cancers. Here, we summarized molecular mechanisms of K63-linked ubiquitination dictating different biological activities of tumor and highlighted novel opportunities for future therapy targeting certain regulation of K63-linked ubiquitination in tumor.
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Jin Z, Yang Z, Sheng Z, Teng J, Chen W, Chen F, Gong M. USP36 Facilitates the Progression of Hepatocellular Carcinoma by Upregulating Myc. J Biomed Nanotechnol 2022. [DOI: 10.1166/jbn.2022.3425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Objective: Our study will explore the function and regulatory mechanism of USP36 in hepatocellular carcinoma (HCC). Methods: USP36-overexpressed and USP36-knockdown cells were established. The USP36 and Myc level were checked by Western blotting and the cell viability
was checked by the MTT method. The apoptotic rate was checked by flow cytometry, while the migration was detected by the Transwell assay. A xenograft model was constructed in nude mice to explore the function of USP36 in HCC. USP36-overexpressed and USP-knockdown cells were constructed by
transfecting pcDNA3.1-USP36 and siRNA-USP36 (si-USP36), respectively. Myc-overexpressed cells were constructed by transfecting pcDNA3.1-Myc. Results: Significantly declined cell viability, increased apoptotic rate, elevated number of migrated cells, downregulated Myc, and repressed
tumor growth were observed in USP36-knockdown HepG2 and HUH7 cells, while opposite results were observed in USP36-overexpressed HepG2 and HUH7 cells. The expression level of Myc was positively regulated by USP36. However, the USP36 level was not regulated by Myc. Lastly, the declined cell
viability, increased apoptotic rate, and elevated number of migrated cells in USP36-knockdown HepG2 cells were dramatically abrogated by the overexpression of Myc. Conclusion: USP36 facilitated the progression of hepatocellular carcinoma by upregulating Myc.
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Affiliation(s)
- Zhaoqing Jin
- Department of General Surgery, First People’s Hospital of Hangzhou Lin’an District (Affiliated Lin’an People’s Hospital, Hangzhou, Medical College), Hangzhou, 310013, China
| | - Ziqiang Yang
- Department of General Surgery, First People’s Hospital of Hangzhou Lin’an District (Affiliated Lin’an People’s Hospital, Hangzhou, Medical College), Hangzhou, 310013, China
| | - Zhen Sheng
- Department of General Surgery, First People’s Hospital of Hangzhou Lin’an District (Affiliated Lin’an People’s Hospital, Hangzhou, Medical College), Hangzhou, 310013, China
| | - Jiao Teng
- Department of General Surgery, First People’s Hospital of Hangzhou Lin’an District (Affiliated Lin’an People’s Hospital, Hangzhou, Medical College), Hangzhou, 310013, China
| | - Weiqing Chen
- Department of General Surgery, First People’s Hospital of Hangzhou Lin’an District (Affiliated Lin’an People’s Hospital, Hangzhou, Medical College), Hangzhou, 310013, China
| | - Feihua Chen
- Department of General Surgery, First People’s Hospital of Hangzhou Lin’an District (Affiliated Lin’an People’s Hospital, Hangzhou, Medical College), Hangzhou, 310013, China
| | - Mouchun Gong
- Department of General Surgery, First People’s Hospital of Hangzhou Lin’an District (Affiliated Lin’an People’s Hospital, Hangzhou, Medical College), Hangzhou, 310013, China
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An T, Lu Y, Yan X, Hou J. Insights Into the Properties, Biological Functions, and Regulation of USP21. Front Pharmacol 2022; 13:944089. [PMID: 35846989 PMCID: PMC9279671 DOI: 10.3389/fphar.2022.944089] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Accepted: 06/14/2022] [Indexed: 11/20/2022] Open
Abstract
Deubiquitylating enzymes (DUBs) antagonize ubiquitination by removing ubiquitin from their substrates. The role of DUBs in controlling various physiological and pathological processes has been extensively studied, and some members of DUBs have been identified as potential therapeutic targets in diseases ranging from tumors to neurodegeneration. Ubiquitin-specific protease 21 (USP21) is a member of the ubiquitin-specific protease family, the largest subfamily of DUBs. Although USP21 was discovered late and early research progress was slow, numerous studies in the last decade have gradually revealed the importance of USP21 in a wide variety of biological processes. In particular, the pro-carcinogenic effect of USP21 has been well elucidated in the last 2 years. In the present review, we provide a comprehensive overview of the current knowledge on USP21, including its properties, biological functions, pathophysiological roles, and cellular regulation. Limited pharmacological interventions for USP21 have also been introduced, highlighting the importance of developing novel and specific inhibitors targeting USP21.
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Affiliation(s)
- Tao An
- School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Yanting Lu
- College of TCM, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Xu Yan
- School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Jingjing Hou
- Department of Gastrointestinal Surgery, School of Medicine, Institute of Gastrointestinal Oncology, Zhongshan Hospital of Xiamen University, Xiamen University, Xiamen, China
- *Correspondence: Jingjing Hou,
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Timani KA, Rezaei S, Whitmill A, Liu Y, He JJ. Tip110/SART3-Mediated Regulation of NF-κB Activity by Targeting IκBα Stability Through USP15. Front Oncol 2022; 12:843157. [PMID: 35530338 PMCID: PMC9070983 DOI: 10.3389/fonc.2022.843157] [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: 12/24/2021] [Accepted: 03/21/2022] [Indexed: 11/25/2022] Open
Abstract
To date, there are a small number of nuclear-restricted proteins that have been reported to play a role in NF-κB signaling. However, the exact molecular mechanisms are not fully understood. Tip110 is a nuclear protein that has been implicated in multiple biological processes. In a previous study, we have shown that Tip110 interacts with oncogenic ubiquitin specific peptidase 15 (USP15) and that ectopic expression of Tip110 leads to re-distribution of USP15 from the cytoplasm to the nucleus. USP15 is known to regulate NF-κB activity through several mechanisms including modulation of IκBα ubiquitination. These findings prompted us to investigate the role of Tip110 in the NF-κB signaling pathway. We showed that Tip110 regulates NF-κB activity. The expression of Tip110 potentiated TNF-α-induced NF-κB activity and deletion of the nuclear localization domain in Tip110 abrogated this potentiation activity. We then demonstrated that Tip110 altered IκBα phosphorylation and stability in the presence of TNF-α. Moreover, we found that Tip110 and USP15 opposingly regulated NF-κB activity by targeting IκBα protein stability. We further showed that Tip110 altered the expression of NF-κB-dependent proinflammatory cytokines. Lastly, by using whole-transcriptome analysis of Tip110 knockout mouse embryonic stem cells, we found several NF-κB and NF-κB-related pathways were dysregulated. Taken together, these findings add to the nuclear regulation of NF-κB activity by Tip110 through IκBα stabilization and provide new evidence to support the role of Tip110 in controlling cellular processes such as cancers that involve proinflammatory responses.
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Affiliation(s)
- Khalid Amine Timani
- Department of Microbiology and Immunology, Rosalind Franklin University, Chicago Medical School, North Chicago, IL, United States
- Center for Cancer Cell Biology, Immunology and Infection, Rosalind Franklin University, North Chicago, IL, United States
- School of Graduate and Postdoctoral Studies, Rosalind Franklin University, North Chicago, IL, United States
- *Correspondence: Khalid Amine Timani,
| | - Sahar Rezaei
- Department of Microbiology and Immunology, Rosalind Franklin University, Chicago Medical School, North Chicago, IL, United States
- Center for Cancer Cell Biology, Immunology and Infection, Rosalind Franklin University, North Chicago, IL, United States
- School of Graduate and Postdoctoral Studies, Rosalind Franklin University, North Chicago, IL, United States
| | - Amanda Whitmill
- Department of Microbiology, Immunology, and Genetics, University of North Texas Health Science Center, Fort Worth, TX, United States
| | - Ying Liu
- Department of Microbiology and Immunology, Rosalind Franklin University, Chicago Medical School, North Chicago, IL, United States
- Center for Cancer Cell Biology, Immunology and Infection, Rosalind Franklin University, North Chicago, IL, United States
- School of Graduate and Postdoctoral Studies, Rosalind Franklin University, North Chicago, IL, United States
| | - Johnny J. He
- Department of Microbiology and Immunology, Rosalind Franklin University, Chicago Medical School, North Chicago, IL, United States
- Center for Cancer Cell Biology, Immunology and Infection, Rosalind Franklin University, North Chicago, IL, United States
- School of Graduate and Postdoctoral Studies, Rosalind Franklin University, North Chicago, IL, United States
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14
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Choi HS, Baek KH. Pro-apoptotic and anti-apoptotic regulation mediated by deubiquitinating enzymes. Cell Mol Life Sci 2022; 79:117. [PMID: 35118522 PMCID: PMC11071826 DOI: 10.1007/s00018-022-04132-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 12/20/2021] [Accepted: 01/05/2022] [Indexed: 12/16/2022]
Abstract
Although damaged cells can be repaired, cells that are considered unlikely to be repaired are eliminated through apoptosis, a type of predicted cell death found in multicellular organisms. Apoptosis is a structured cell death involving alterations to the cell morphology and internal biochemical changes. This process involves the expansion and cracking of cells, changes in cell membranes, nuclear fragmentation, chromatin condensation, and chromosome cleavage, culminating in the damaged cells being eaten and processed by other cells. The ubiquitin-proteasome system (UPS) is a major cellular pathway that regulates the protein levels through proteasomal degradation. This review proposes that apoptotic proteins are regulated through the UPS and describes a unique direction for cancer treatment by controlling proteasomal degradation of apoptotic proteins, and small molecules targeted to enzymes associated with UPS.
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Affiliation(s)
- Hae-Seul Choi
- Department of Biomedical Science, CHA University, 335 Pangyo-Ro, Bundang-Gu, Seongnam-Si, Gyeonggi-Do, 13488, Republic of Korea
| | - Kwang-Hyun Baek
- Department of Biomedical Science, CHA University, 335 Pangyo-Ro, Bundang-Gu, Seongnam-Si, Gyeonggi-Do, 13488, Republic of Korea.
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15
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Budroni V, Versteeg GA. Negative Regulation of the Innate Immune Response through Proteasomal Degradation and Deubiquitination. Viruses 2021; 13:584. [PMID: 33808506 PMCID: PMC8066222 DOI: 10.3390/v13040584] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 03/26/2021] [Accepted: 03/27/2021] [Indexed: 12/25/2022] Open
Abstract
The rapid and dynamic activation of the innate immune system is achieved through complex signaling networks regulated by post-translational modifications modulating the subcellular localization, activity, and abundance of signaling molecules. Many constitutively expressed signaling molecules are present in the cell in inactive forms, and become functionally activated once they are modified with ubiquitin, and, in turn, inactivated by removal of the same post-translational mark. Moreover, upon infection resolution a rapid remodeling of the proteome needs to occur, ensuring the removal of induced response proteins to prevent hyperactivation. This review discusses the current knowledge on the negative regulation of innate immune signaling pathways by deubiquitinating enzymes, and through degradative ubiquitination. It focusses on spatiotemporal regulation of deubiquitinase and E3 ligase activities, mechanisms for re-establishing proteostasis, and degradation through immune-specific feedback mechanisms vs. general protein quality control pathways.
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Affiliation(s)
| | - Gijs A. Versteeg
- Max Perutz Labs, Department of Microbiology, Immunobiology, and Genetics, University of Vienna, Vienna Biocenter (VBC), 1030 Vienna, Austria;
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16
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Hu B, Zhang D, Zhao K, Wang Y, Pei L, Fu Q, Ma X. Spotlight on USP4: Structure, Function, and Regulation. Front Cell Dev Biol 2021; 9:595159. [PMID: 33681193 PMCID: PMC7935551 DOI: 10.3389/fcell.2021.595159] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Accepted: 01/15/2021] [Indexed: 02/05/2023] Open
Abstract
The deubiquitinating enzyme (DUB)–mediated cleavage of ubiquitin plays a critical role in balancing protein synthesis and degradation. Ubiquitin-specific protease 4 (USP4), a member of the largest subfamily of cysteine protease DUBs, removes monoubiquitinated and polyubiquitinated chains from its target proteins. USP4 contains a DUSP (domain in USP)–UBL (ubiquitin-like) domain and a UBL-insert catalytic domain, sharing a common domain organization with its paralogs USP11 and USP15. USP4 plays a critical role in multiple cellular and biological processes and is tightly regulated under normal physiological conditions. When its expression or activity is aberrant, USP4 is implicated in the progression of a wide range of pathologies, especially cancers. In this review, we comprehensively summarize the current knowledge of USP4 structure, biological functions, pathological roles, and cellular regulation, highlighting the importance of exploring effective therapeutic interventions to target USP4.
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Affiliation(s)
- Binbin Hu
- Department of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Dingyue Zhang
- Department of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Kejia Zhao
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Yang Wang
- Department of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Lijiao Pei
- Department of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Qianmei Fu
- Department of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Xuelei Ma
- Department of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
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17
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Ubiquitin-specific protease 4 predicts an unfavorable prognosis and promotes malignant behaviors in vitro in pancreatic cancer. Exp Cell Res 2020; 396:112317. [PMID: 33038351 DOI: 10.1016/j.yexcr.2020.112317] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 10/01/2020] [Accepted: 10/02/2020] [Indexed: 12/14/2022]
Abstract
Ubiquitin-specific protease 4 (USP4), has been reported to participate in the progression of various cancers due to its role in post-translational modulation. However, the prognostic significance and mechanism of USP4 in pancreatic cancer (PC) have not been well elucidated before. In the present study, we found that USP4 expression was higher in PC tissues than that in adjacent normal tissues and PC patients with high level of USP4 expression have a poor prognosis via immunohistochemistry and bioinformatics analyses. In vitro study showed that knockdown of USP4 inhibited PC cells proliferation, migration and invasion. Mechanistically, USP4 can activate nuclear factor kappa-B signaling pathway via stabilizing TNF receptor associated factor 6 at its protein level to promote the ability of proliferation, migration and invasion of PC cells. The results of this study revealed that USP4 plays a tumor-promoting role in PC and can be used as a prognostic indicator and therapeutic target for patients with resected PC.
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18
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Morgan EL, Chen Z, Van Waes C. Regulation of NFκB Signalling by Ubiquitination: A Potential Therapeutic Target in Head and Neck Squamous Cell Carcinoma? Cancers (Basel) 2020; 12:E2877. [PMID: 33036368 PMCID: PMC7601648 DOI: 10.3390/cancers12102877] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 09/22/2020] [Accepted: 09/29/2020] [Indexed: 02/08/2023] Open
Abstract
Head and neck squamous cell carcinoma (HNSCC) is the sixth most common cancer worldwide, with over 600,000 cases per year. The primary causes for HNSCC include smoking and alcohol consumption, with an increasing number of cases attributed to infection with Human Papillomavirus (HPV). The treatment options for HNSCC currently include surgery, radiotherapy, and/or platinum-based chemotherapeutics. Cetuximab (targeting EGFR) and Pembrolizumab (targeting PD-1) have been approved for advanced stage, recurrent, and/or metastatic HNSCC. Despite these advances, whilst HPV+ HNSCC has a 3-year overall survival (OS) rate of around 80%, the 3-year OS for HPV- HNSCC is still around 55%. Aberrant signal activation of transcription factor NFκB plays an important role in the pathogenesis and therapeutic resistance of HNSCC. As an important mediator of inflammatory signalling and the immune response to pathogens, the NFκB pathway is tightly regulated to prevent chronic inflammation, a key driver of tumorigenesis. Here, we discuss how NFκB signalling is regulated by the ubiquitin pathway and how this pathway is deregulated in HNSCC. Finally, we discuss the current strategies available to target the ubiquitin pathway and how this may offer a potential therapeutic benefit in HNSCC.
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Affiliation(s)
- Ethan L. Morgan
- Tumor Biology Section, Head and Neck Surgery Branch, National Institute of Deafness and Other Communication Disorders, NIH, Bethesda, MD 20892, USA;
| | - Zhong Chen
- Tumor Biology Section, Head and Neck Surgery Branch, National Institute of Deafness and Other Communication Disorders, NIH, Bethesda, MD 20892, USA;
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19
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Wang Y, Zhou L, Lu J, Jiang B, Liu C, Guo J. USP4 function and multifaceted roles in cancer: a possible and potential therapeutic target. Cancer Cell Int 2020; 20:298. [PMID: 32669974 PMCID: PMC7350758 DOI: 10.1186/s12935-020-01391-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 06/30/2020] [Indexed: 12/15/2022] Open
Abstract
Cancer remains one of the major culprits causing disease-related deaths and leads to a high morbidity and similar mortality. Insidious onset, difficult early detection and a lack of broad-spectrum and effective multi-cancer therapeutic targets have limited the prolongation of cancer patients’ survival for decades. Therefore, a versatile therapeutic target which is involved in various cancer-related signaling pathways and different cancers may be more effective for cancer targeted therapy. USP4, one of the DUBs members which participates in deubiquitination, an inverse process of ubiquitination, can regulate various classical cancer-related signaling pathways, and thereby plays a vital role in some pathological and physiological processes including tumor initiation and progression. Recently, USP4 has been found to exert versatile influences on cells proliferation, migration and invasion, also apoptosis of various tumors. Moreover, USP4 can also act as a prognostic biomarker in several cancers. This review will give a comprehensive introduction of USP4 about its regulatory mechanisms, related signaling pathways, pathophysiological functions and the roles in various cancers which may help us better understand its biological functions and improve future studies to construct suitable USP4-targeted cancer therapy system.
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Affiliation(s)
- Yizhi Wang
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730 China
| | - Li Zhou
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730 China
| | - Jun Lu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730 China
| | - Bolun Jiang
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730 China
| | - Chengxi Liu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730 China
| | - Junchao Guo
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730 China
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20
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Antao AM, Tyagi A, Kim KS, Ramakrishna S. Advances in Deubiquitinating Enzyme Inhibition and Applications in Cancer Therapeutics. Cancers (Basel) 2020; 12:E1579. [PMID: 32549302 PMCID: PMC7352412 DOI: 10.3390/cancers12061579] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 06/07/2020] [Accepted: 06/11/2020] [Indexed: 12/11/2022] Open
Abstract
Since the discovery of the ubiquitin proteasome system (UPS), the roles of ubiquitinating and deubiquitinating enzymes (DUBs) have been widely elucidated. The ubiquitination of proteins regulates many aspects of cellular functions such as protein degradation and localization, and also modifies protein-protein interactions. DUBs cleave the attached ubiquitin moieties from substrates and thereby reverse the process of ubiquitination. The dysregulation of these two paramount pathways has been implicated in numerous diseases, including cancer. Attempts are being made to identify inhibitors of ubiquitin E3 ligases and DUBs that potentially have clinical implications in cancer, making them an important target in the pharmaceutical industry. Therefore, studies in medicine are currently focused on the pharmacological disruption of DUB activity as a rationale to specifically target cancer-causing protein aberrations. Here, we briefly discuss the pathophysiological and physiological roles of DUBs in key cancer-related pathways. We also discuss the clinical applications of promising DUB inhibitors that may contribute to the development of DUBs as key therapeutic targets in the future.
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Affiliation(s)
- Ainsley Mike Antao
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul 04763, Korea; (A.M.A.); (A.T.)
| | - Apoorvi Tyagi
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul 04763, Korea; (A.M.A.); (A.T.)
| | - Kye-Seong Kim
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul 04763, Korea; (A.M.A.); (A.T.)
- College of Medicine, Hanyang University, Seoul 04763, Korea
| | - Suresh Ramakrishna
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul 04763, Korea; (A.M.A.); (A.T.)
- College of Medicine, Hanyang University, Seoul 04763, Korea
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21
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Yin XH, Yu LP, Zhao XH, Li QM, Liu XP, He L. Development and validation of a 4-gene combination for the prognostication in lung adenocarcinoma patients. J Cancer 2020; 11:1940-1948. [PMID: 32194805 PMCID: PMC7052877 DOI: 10.7150/jca.37003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 12/07/2019] [Indexed: 02/06/2023] Open
Abstract
Objective: To identify a multi-gene prognostic factor in patients with lung adenocarcinoma (LUAD). Materials and methods Prognosis-related genes were screened in the TCGA-LUAD cohort. Then, patients in this cohort were randomly separated into training set and test set. Least absolute shrinkage and selection operator (LASSO) regression was performed to the penalized the Cox proportional hazards regression (CPH) model on the training set, and a prognostication combination based on the result of LASSO analysis was developed. By performing Kaplan-Meier curve analysis, univariate and multivariable CPH model on the overall survival (OS) as well as recurrence free survival (RFS), the prognostication performance of the multigene combination were evaluated. Moreover, we constructed a nomogram and performed decision curve analysis to evaluate the clinical application of the multigene combination. Results We obtained 99 prognosis-related genes and screened out a 4-gene combination (including CIDEC, ZFP3, DKK1, and USP4) according to the LASSO analysis. The results of survival analyses suggested that patients in the 4-gene combination low-risk group had better OS and RFS than those in the 4-gene combination high-risk group. The 4-gene mentioned was demonstrated to be independent prognostic factor of patients with LUAD in the training set(OS, HR=11.962, P<0.001; RFS, HR=9.281, P<0.001) and test set (OS, HR=5.377, P=0.003; RFS, HR=2.949, P=0.104). More importantly, its prognosis performance was well in the validation set (OS, HR=0.955, P=0.002; RFS, HR=1.042, P<0.001). Conclusions We introduced a 4-gene combination which could predict the survival of LUAD patients and might be an independent prognostic factor in LUAD.
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Affiliation(s)
- Xiao-Hong Yin
- Department of Hematology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei province, China.,Wuhan University School of Health Sciences, Wuhan, Hubei province, China
| | - Li-Ping Yu
- Wuhan University School of Health Sciences, Wuhan, Hubei province, China
| | - Xiao-Hong Zhao
- Wuhan University School of Health Sciences, Wuhan, Hubei province, China
| | - Qin-Mei Li
- Department of Epidemiology, Department of Epidemiology, School of Health Sciences, Wuhan University, Wuhan, Hubei, China
| | - Xiao-Ping Liu
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei province, China
| | - Li He
- Department of Hematology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei province, China
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22
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Functional analysis of deubiquitylating enzymes in tumorigenesis and development. Biochim Biophys Acta Rev Cancer 2019; 1872:188312. [DOI: 10.1016/j.bbcan.2019.188312] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 08/16/2019] [Accepted: 08/16/2019] [Indexed: 02/06/2023]
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23
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Qiu C, Liu Y, Mei Y, Zou M, Zhao Z, Ye M, Wu X. Ubiquitin-specific protease 4 promotes metastasis of hepatocellular carcinoma by increasing TGF-β signaling-induced epithelial-mesenchymal transition. Aging (Albany NY) 2019; 10:2783-2799. [PMID: 30335615 PMCID: PMC6224254 DOI: 10.18632/aging.101587] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 10/04/2018] [Indexed: 12/21/2022]
Abstract
Invasion and metastasis are the main cause of recurrence and death in advanced hepatocellular carcinoma (HCC). Revealing the mechanisms of HCC metastasis is important for developing new therapeutic approaches and reducing patient mortality. Ubiquitin specific protease 4 (USP4), is involved in tumorigenesis by deubiquitinating some important oncogenic proteins and impacting their degradation. In the present study, we found that USP4 was significantly upregulated in HCC tumor tissues and the high expression of USP4 was associated with distant metastasis and poor survival in patients. Using gene interference, we demonstrated that USP4 knockdown significantly inhibited HCC cell migration and invasion in vitro, and USP4 overexpression had the opposite results. In vivo, we also found that USP4 knockdown obviously blocked HCC cell metastasis. Mechanistically, we revealed that USP4 interacted directly with and deubiquitinated TGF-β receptor type I (TGFR-1) to activate the TGF-β signaling pathway, and subsequently induced the Epithelial-Mesenchymal Transition (EMT) in HCC cells. Taken together, our results elucidate that USP4 is highly expressed in HCC and promotes the tumor invasion and metastasis, the underlying mechanism is that USP4 directly interacts with and deubiquitinates TGFR-1 to increase TGF-β signaling-Induced EMT. These results could provide a new therapeutic target for the treatment of HCC.
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Affiliation(s)
- Chan Qiu
- Department of Gastroenterology, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, P.R. China
| | - Yan Liu
- Department of Gastroenterology, the Fifth People's Hospital of Chengdu, Chengdu, Sichuan, 611130, P.R. China
| | - Ying Mei
- Department of Hepatobiliary Surgery, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, P.R. China
| | - Min Zou
- Department of Gastroenterology, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, P.R. China
| | - Zhibo Zhao
- Department of Hepatobiliary Surgery, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, P.R. China
| | - Mingxin Ye
- Department of Hepatobiliary Surgery, the Affiliated Hospital of Southwest Medical University, Lu zhou, Sichuan, 646000, P.R. China
| | - Xiaoling Wu
- Department of Gastroenterology, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, P.R. China
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Parkin facilitates proteasome inhibitor-induced apoptosis via suppression of NF-κB activity in hepatocellular carcinoma. Cell Death Dis 2019; 10:719. [PMID: 31558697 PMCID: PMC6763437 DOI: 10.1038/s41419-019-1881-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Revised: 07/17/2019] [Accepted: 07/30/2019] [Indexed: 12/30/2022]
Abstract
The ubiquitin–proteasome system (UPS) is a tight homeostatic control mechanism of intracellular protein degradation and turnover involved in many human diseases. Proteasome inhibitors were initially developed as anticancer agents with potential benefits in the suppression of tumor growth. However, clinical trials of patients with solid tumors fail to demonstrate the same efficacy of these proteasome inhibitors. Here, we show that Parkin, an E3 ubiquitin ligase, is implicated in tumorigenesis and therapy resistance of hepatocellular carcinoma (HCC), the most common type of primary liver cancer in adults. Lower Parkin expression correlates with poor survival in patients with HCC. Ectopic Parkin expression enhances proteasome inhibitor-induced apoptosis and tumor suppression in HCC cells in vitro and in vivo. In contrast, knockdown of Parkin expression promotes apoptosis resistance and tumor growth. Mechanistically, Parkin promotes TNF receptor-associated factor (TRAF) 2 and TRAF6 degradation and thus facilitates nuclear factor-kappa-B (NF-κB) inhibition, which finally results in apoptosis. These findings reveal a direct molecular link between Parkin and protein degradation in the control of the NF-κB pathway and may provide a novel UPS-dependent strategy for the treatment of HCC by induction of apoptosis.
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25
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Jean-Charles PY, Wu JH, Zhang L, Kaur S, Nepliouev I, Stiber JA, Brian L, Qi R, Wertman V, Shenoy SK, Freedman NJ. USP20 (Ubiquitin-Specific Protease 20) Inhibits TNF (Tumor Necrosis Factor)-Triggered Smooth Muscle Cell Inflammation and Attenuates Atherosclerosis. Arterioscler Thromb Vasc Biol 2019; 38:2295-2305. [PMID: 30354204 DOI: 10.1161/atvbaha.118.311071] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Objective- Signaling that activates NFκB (nuclear factor κB) in smooth muscle cells (SMCs) is integral to atherosclerosis and involves reversible ubiquitination that activates proteins downstream of proatherogenic receptors. Deubiquitination of these proteins is mediated by USP20 (ubiquitin-specific protease 20), among other deubiquitinases. We sought to determine whether USP20 activity in SMCs decreases atherosclerosis. Approach and Results- To address this question, we used male Ldlr-/- mice without (control) or with SMC-specific expression of murine USP20 (SMC-USP20-transgenic) or its dominant-negative (DN; C154S/H643Q) mutant (SMC-DN-USP20-transgenic). Before the appearance of intimal macrophages, NFκB activation in aortic medial SMCs was greater in SMC-DN-USP20-transgenic than in control mice. After 16 weeks on a Western diet, SMC-DN-USP20-transgenic mice had 46% greater brachiocephalic artery atheroma area than control mice. Congruently, aortic atherosclerosis assessed en face was 21% greater than control in SMC-DN-USP20-transgenic mice and 13% less than control in SMC-USP20-transgenic mice. In response to TNF (tumor necrosis factor), SMCs from SMC-DN-USP20-transgenic mice showed ≈3-fold greater NFκB activation than control SMCs. Silencing USP20 in SMCs with siRNA (small interfering RNA) augmented NFκB activation by ≈50% in response to either TNF or IL-1β (interleukin-1β). Coimmunoprecipitation experiments revealed that USP20 associates with several components of the TNFR1 (TNF receptor-1) signaling pathway, including RIPK1 (receptor-interacting protein kinase 1), a critical checkpoint in TNF-induced NFκB activation and inflammation. TNF evoked ≈2-fold more RIPK1 ubiquitination in SMC-DN-USP20-transgenic than in control SMCs, and RIPK1 was deubiquitinated by purified USP20 in vitro. Conclusions- USP20 attenuates TNF- and IL-1β-evoked atherogenic signaling in SMCs, by deubiquitinating RIPK1, among other signaling intermediates.
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Affiliation(s)
- Pierre-Yves Jean-Charles
- From the Departments of Medicine (Cardiology) (P.-Y.J.-C., J.-H.W., L.Z., S.K., I.N., J.A.S., L.B., R.Q., V.W., S.K.S., N.J.F.), Duke University Medical Center, Durham, NC
| | - Jiao-Hui Wu
- From the Departments of Medicine (Cardiology) (P.-Y.J.-C., J.-H.W., L.Z., S.K., I.N., J.A.S., L.B., R.Q., V.W., S.K.S., N.J.F.), Duke University Medical Center, Durham, NC
| | - Lisheng Zhang
- From the Departments of Medicine (Cardiology) (P.-Y.J.-C., J.-H.W., L.Z., S.K., I.N., J.A.S., L.B., R.Q., V.W., S.K.S., N.J.F.), Duke University Medical Center, Durham, NC
| | - Suneet Kaur
- From the Departments of Medicine (Cardiology) (P.-Y.J.-C., J.-H.W., L.Z., S.K., I.N., J.A.S., L.B., R.Q., V.W., S.K.S., N.J.F.), Duke University Medical Center, Durham, NC
| | - Igor Nepliouev
- From the Departments of Medicine (Cardiology) (P.-Y.J.-C., J.-H.W., L.Z., S.K., I.N., J.A.S., L.B., R.Q., V.W., S.K.S., N.J.F.), Duke University Medical Center, Durham, NC
| | - Jonathan A Stiber
- From the Departments of Medicine (Cardiology) (P.-Y.J.-C., J.-H.W., L.Z., S.K., I.N., J.A.S., L.B., R.Q., V.W., S.K.S., N.J.F.), Duke University Medical Center, Durham, NC
| | - Leigh Brian
- From the Departments of Medicine (Cardiology) (P.-Y.J.-C., J.-H.W., L.Z., S.K., I.N., J.A.S., L.B., R.Q., V.W., S.K.S., N.J.F.), Duke University Medical Center, Durham, NC
| | - Rui Qi
- From the Departments of Medicine (Cardiology) (P.-Y.J.-C., J.-H.W., L.Z., S.K., I.N., J.A.S., L.B., R.Q., V.W., S.K.S., N.J.F.), Duke University Medical Center, Durham, NC
| | - Virginia Wertman
- From the Departments of Medicine (Cardiology) (P.-Y.J.-C., J.-H.W., L.Z., S.K., I.N., J.A.S., L.B., R.Q., V.W., S.K.S., N.J.F.), Duke University Medical Center, Durham, NC
| | - Sudha K Shenoy
- From the Departments of Medicine (Cardiology) (P.-Y.J.-C., J.-H.W., L.Z., S.K., I.N., J.A.S., L.B., R.Q., V.W., S.K.S., N.J.F.), Duke University Medical Center, Durham, NC.,Cell Biology (S.K.S., N.J.F.), Duke University Medical Center, Durham, NC
| | - Neil J Freedman
- From the Departments of Medicine (Cardiology) (P.-Y.J.-C., J.-H.W., L.Z., S.K., I.N., J.A.S., L.B., R.Q., V.W., S.K.S., N.J.F.), Duke University Medical Center, Durham, NC.,Cell Biology (S.K.S., N.J.F.), Duke University Medical Center, Durham, NC
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Geng N, Li Y, Zhang W, Wang F, Wang X, Jin Z, Xing Y, Li D, Zhang H, Li Y, Li X, Cheng M, Jin F, Li F. A PAK5-DNPEP-USP4 axis dictates breast cancer growth and metastasis. Int J Cancer 2019; 146:1139-1151. [PMID: 31219614 DOI: 10.1002/ijc.32523] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 05/20/2019] [Accepted: 06/13/2019] [Indexed: 12/30/2022]
Abstract
Although clinically associated with the progression of multiple cancers, the biological function of p21-activated kinase 5 (PAK5) in breast cancer remains largely unknown. Here, we reveal that the PAK5-aspartyl aminopeptidase (DNPEP)-ubiquitin-specific protease 4 (USP4) axis is involved in breast cancer progression. We show that PAK5 interacts with and phosphorylates DNPEP at serine 119. Functionally, we demonstrate that DNPEP overexpression suppresses breast cancer cell proliferation and invasion and restricts breast cancer growth and metastasis in mice. Furthermore, we identify USP4 as a downstream target of the PAK5-DNPEP pathway; DNPEP mediates USP4 downregulation. Importantly, we verify that DNPEP expression is frequently downregulated in breast cancer tissues and is negatively correlated with PAK5 and USP4 expression. PAK5 decreases DNPEP abundance via the ubiquitin-proteasome pathway. Consistently, analyses of clinical breast cancer specimens revealed significantly increased PAK5 and USP4 levels and an association between higher PAK5 and USP4 expression and worse breast cancer patient survival. These findings suggest a pivotal role for PAK5-elicited signaling in breast cancer progression.
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Affiliation(s)
- Nanxi Geng
- Department of Cell Biology, Key Laboratory of Cell Biology of Ministry of Public Health, and Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning, China
| | - Yang Li
- Department of Cell Biology, Key Laboratory of Cell Biology of Ministry of Public Health, and Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning, China
| | - Wenyu Zhang
- Department of Cell Biology, Key Laboratory of Cell Biology of Ministry of Public Health, and Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning, China
| | - Fei Wang
- Department of Cell Biology, Key Laboratory of Cell Biology of Ministry of Public Health, and Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning, China
| | - Xu Wang
- Department of Breast Surgery, Department of Surgical Oncology, Research Unit of General Surgery, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - Zining Jin
- Department of Breast Surgery, Department of Surgical Oncology, Research Unit of General Surgery, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - Yao Xing
- Department of Cell Biology, Key Laboratory of Cell Biology of Ministry of Public Health, and Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning, China
| | - Danni Li
- Department of Medical Oncology, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Hongyan Zhang
- Department of Cell Biology, Key Laboratory of Cell Biology of Ministry of Public Health, and Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning, China
| | - Yanshu Li
- Department of Cell Biology, Key Laboratory of Cell Biology of Ministry of Public Health, and Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning, China
| | - Xiaodong Li
- Department of Cell Biology, Key Laboratory of Cell Biology of Ministry of Public Health, and Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning, China
| | - Maosheng Cheng
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, Liaoning, China
| | - Feng Jin
- Department of Breast Surgery, Department of Surgical Oncology, Research Unit of General Surgery, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - Feng Li
- Department of Cell Biology, Key Laboratory of Cell Biology of Ministry of Public Health, and Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning, China
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27
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Zhou Y, Liang P, Ji W, Yu Z, Chen H, Jiang L. Ubiquitin-specific protease 4 promotes glioblastoma multiforme via activating ERK pathway. Onco Targets Ther 2019; 12:1825-1839. [PMID: 30881035 PMCID: PMC6407510 DOI: 10.2147/ott.s176582] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Background Glioblastoma multiforme (GBM) is one of the most common brain tumors in adults. Current treatments cannot increase survival to a large extent, as the glioblastoma development mechanisms remain unknown. It has been well documented that ubiquitination contributes to tumor initiation and/or progression in many kinds of cancer. Ubiquitin-specific protease 4 (USP4), a member of deubiquitinating enzymes (DUBs) family, can remove ubiquitin residues and play a role in cancer development. Methods In the current study, lentiviruses were used to manipulate the expression of USP4. Real-time PCR and Western blot were used to measure the expression level of USP4. Then, CCK-8 and annexin-V staining were used to detect cell proliferation and cell apoptosis, respectively. Results First, we found that USP4 was highly upregulated in GBM tissues in comparison with that in normal tissues and high level of USP4 correlated with poor prognosis. Moreover, knockdown of USP4 could significantly inhibit cell proliferation and increase cell apoptosis in U87 and T98G cells. Cells with stable USP4 reduction exhibited slower tumor growth rate and smaller tumor size than the control group cells in a xenograft mouse model. Inhibition of USP4 downregulated the expression of PCNA, Bcl-2 and p-ERK1/2, but upregulated the expression of Bax both in vitro and in vivo. Inversely, USP4 overexpression could attenuate the effects contributed by ERK inhibitor. TGF-βR inhibition reduced level of TGF-βR1, p-smad2 and p-ERK1/2 which can partially be rescued by USP4 overexpression. Conclusion USP4, as a potential novel oncogene, promotes GBM by activation of ERK pathway through regulating TGF-β.
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Affiliation(s)
- Yudong Zhou
- Department of Neurosurgery, Children's Hospital of Chongqing Medical University, Chongqing 400014, People's Republic of China,
| | - Ping Liang
- Department of Neurosurgery, Children's Hospital of Chongqing Medical University, Chongqing 400014, People's Republic of China,
| | - Wenyuan Ji
- Department of Neurosurgery, Children's Hospital of Chongqing Medical University, Chongqing 400014, People's Republic of China,
| | - Zengpeng Yu
- Department of Neurosurgery, Children's Hospital of Chongqing Medical University, Chongqing 400014, People's Republic of China,
| | - Hui Chen
- Department of Neurosurgery, Children's Hospital of Chongqing Medical University, Chongqing 400014, People's Republic of China,
| | - Li Jiang
- Department of Neurosurgery, Children's Hospital of Chongqing Medical University, Chongqing 400014, People's Republic of China, .,Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing 400014, People's Republic of China, .,China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, People's Republic of China, .,Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Chongqing 400014, People's Republic of China,
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28
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Kim SY, Baek KH. TGF-β signaling pathway mediated by deubiquitinating enzymes. Cell Mol Life Sci 2019; 76:653-665. [PMID: 30349992 PMCID: PMC11105597 DOI: 10.1007/s00018-018-2949-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 09/27/2018] [Accepted: 10/15/2018] [Indexed: 12/18/2022]
Abstract
Ubiquitination is a reversible cellular process mediated by ubiquitin-conjugating enzymes, whereas deubiquitinating enzymes (DUBs) detach the covalently conjugated ubiquitin from target substrates to counter ubiquitination. DUBs play a crucial role in regulating various signal transduction pathways and biological processes including apoptosis, cell proliferation, DNA damage repair, metastasis, differentiation, etc. Since the transforming growth factor-β (TGF-β) signaling pathway participates in various cellular functions such as inflammation, metastasis and embryogenesis, aberrant regulation of TGF-β signaling induces abnormal cellular functions resulting in numerous diseases. This review focuses on DUBs regulating the TGF-β signaling pathway. We discuss the molecular mechanisms of DUBs involved in TGF-β signaling pathway, and biological and therapeutic implications for various diseases.
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Affiliation(s)
- Soo-Yeon Kim
- Department of Biomedical Science, CHA University, 335 Pangyo-Ro, Bundang-Gu, Seongnam, Gyeonggi, 13488, Republic of Korea
| | - Kwang-Hyun Baek
- Department of Biomedical Science, CHA University, 335 Pangyo-Ro, Bundang-Gu, Seongnam, Gyeonggi, 13488, Republic of Korea.
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29
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USP4 deficiency exacerbates hepatic ischaemia/reperfusion injury via TAK1 signalling. Clin Sci (Lond) 2019; 133:335-349. [PMID: 30622220 DOI: 10.1042/cs20180959] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Revised: 01/06/2019] [Accepted: 01/07/2019] [Indexed: 02/06/2023]
Abstract
Ubiquitin-specific peptidase 4 (USP4) protein is a type of deubiquitination enzyme that is correlated with many important biological processes. However, the function of USP4 in hepatic ischaemia/reperfusion (I/R) injury remains unknown. The aim of the present study was to explore the role of USP4 in hepatic I/R injury. USP4 gene knockout mice and primary hepatocytes were used to construct hepatic I/R models. The effect of USP4 on hepatic I/R injury was examined via pathological and molecular analyses. Our results indicated that USP4 was significantly up-regulated in liver of mice subjected to hepatic I/R injury. USP4 knockout mice exhibited exacerbated hepatic I/R injury, as evidenced by enhanced liver inflammation via the nuclear factor κB (NF-κB) signalling pathway and increased hepatocyte apoptosis. Additionally, USP4 overexpression inhibited hepatocyte inflammation and apoptosis on hepatic I/R stimulation. Mechanistically, our study demonstrates that USP4 deficiency exerts its detrimental effects on hepatic I/R injury by inducing activation of the transforming growth factor β-activated kinase 1 (TAK1)/JNK signalling pathways. TAK1 was required for USP4 function in hepatic I/R injury as TAK1 inhibition abolished USP4 function in vitro In conclusion, our study demonstrates that USP4 deficiency plays a detrimental role in hepatic I/R injury by promoting activation of the TAK1/JNK signalling pathways. Modulation of this axis may be a novel strategy to alleviate the pathological process of hepatic I/R injury.
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30
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Yao R, Pu J, Fan R, Zhu W, Ding X, Shen X, Zhang T. Ubiquitin-specific protease 4 improves the prognosis of the patients in esophageal cancer. Cancer Biomark 2018; 20:317-323. [PMID: 28946564 DOI: 10.3233/cbm-170308] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Our study mainly investigated ubiquitin-specific protease 4 (USP4) expression in pathogenesis of esophageal cancer. The data showed significantly increased expression of USP4 in cancer tissues compared to that in para-carcinoma tissues (68.38% ± 25.60% vs 13.04% ± 9.95%, P= 0.000) and positive correlation between USP4 and pathology grade (r= 0.249, P= 0.014), although survival analysis revealed that USP4 expression was positively associated with the prognosis (32.4% vs 10.9%, P= 0.043). Grouped analysis revealed that the prognosis of patients with high USP4 expression were significantly better only in the small tumor subgroup (diameter ⩽ 5 cm) (52.6% VS 8.6%, P= 0.001) and the early stage subgroup (stages 1 and 2) (60.0% VS 16.7%, P= 0.006). Moreover, in the subgroup of clinical stages 1 and 2 with tumor diameter ⩽ 5 cm, high USP4 expression prolonged the survival time of esophageal cancer patients more significantly (75.5% VS 5.9%, P= 0.000). Based on these results, we speculated that it was possible to significantly improve the prognosis of patients with low USP4 expression by targeted therapy in early esophageal cancer. Taken together, our study uncovered a previously unknown function of USP4 in esophageal cancer and more investigations would be carried out to further study its regulation gene network and molecular biological mechanism in esophageal cancer.
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Affiliation(s)
- Rong Yao
- Departments of Oncology, Huaian First People's Hospital, Nanjing Medical University, Huaian 223300, Jiangsu, China.,Departments of Oncology, Huaian First People's Hospital, Nanjing Medical University, Huaian 223300, Jiangsu, China
| | - Juan Pu
- Department of Radiation Oncology, Lianshui People's Hospital, Huaian 223300, Jiangsu, China.,Departments of Oncology, Huaian First People's Hospital, Nanjing Medical University, Huaian 223300, Jiangsu, China
| | - Ruihua Fan
- Departments of Oncology, Huaian First People's Hospital, Nanjing Medical University, Huaian 223300, Jiangsu, China
| | - Weiguo Zhu
- Departments of Radiation Oncology, Huaian First People's Hospital, Nanjing Medical University, Huaian 223300, Jiangsu, China
| | - Xiaorong Ding
- Departments of Oncology, Huaian First People's Hospital, Nanjing Medical University, Huaian 223300, Jiangsu, China
| | - Xiaoying Shen
- Shanghai Outdo Biotech Co., Ltd., Shanghai 201399, China
| | - Tiecheng Zhang
- Departments of Oncology, Huaian First People's Hospital, Nanjing Medical University, Huaian 223300, Jiangsu, China
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31
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Guo W, Ma J, Pei T, Zhao T, Guo S, Yi X, Liu Y, Wang S, Zhu G, Jian Z, Gao T, Li C, Liao W, Shi Q. Up-regulated deubiquitinase USP4 plays an oncogenic role in melanoma. J Cell Mol Med 2018; 22:2944-2954. [PMID: 29542252 PMCID: PMC5908120 DOI: 10.1111/jcmm.13603] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 02/13/2018] [Indexed: 02/06/2023] Open
Abstract
Melanoma is the most malignant skin cancer with increasing incidence worldwide. Although innovative therapies such as BRAF inhibitor and immune checkpoint inhibitor have gained remarkable advances, metastatic melanoma remains an incurable disease for its notorious aggressiveness. Therefore, further clarification of the underlying mechanism of melanoma pathogenesis is critical for the improvement of melanoma therapy. Ubiquitination is an important regulatory event for cancer hallmarks and melanoma development, and the deubiquitinating enzymes including ubiquitin-specific peptidase (USP) families are greatly implicated in modulating cancer biology. Herein, we first found that the expression of the deubiquitinase USP4 was significantly up-regulated in melanoma tissues and cell lines. Furthermore, although USP4 knockdown had little impact on melanoma cell proliferation, it could increase the sensitivity to DNA damage agent cisplatin. We subsequently showed that USP4 regulated cisplatin-induced cell apoptosis via p53 signalling. More importantly, USP4 could accentuate the invasive and migratory capacity of melanoma cells by promoting epithelial-mesenchymal transition. Altogether, our results demonstrate that the up-regulated USP4 plays an oncogenic role in melanoma by simultaneously suppressing stress-induced cell apoptosis and facilitating tumour metastasis.
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Affiliation(s)
- Weinan Guo
- Department of Dermatology, Xijing hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Jinyuan Ma
- Department of Dermatology, Xijing hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Tianli Pei
- Department of Dermatology, Xijing hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Tao Zhao
- Department of Dermatology, Xijing hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Sen Guo
- Department of Dermatology, Xijing hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Xiuli Yi
- Department of Dermatology, Xijing hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Yu Liu
- Department of Dermatology, Xijing hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Shiyu Wang
- Department of Dermatology, Xijing hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Guannan Zhu
- Department of Dermatology, Xijing hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Zhe Jian
- Department of Dermatology, Xijing hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Tianwen Gao
- Department of Dermatology, Xijing hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Chunying Li
- Department of Dermatology, Xijing hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Wenjun Liao
- Department of Dermatology, Xijing hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Qiong Shi
- Department of Dermatology, Xijing hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
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32
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Zhong M, Jiang Q, Jin R. USP4 expression independently predicts favorable survival in lung adenocarcinoma. IUBMB Life 2018; 70:670-677. [PMID: 29667299 DOI: 10.1002/iub.1755] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 03/29/2018] [Indexed: 01/29/2023]
Abstract
Ubiquitin specific protease 4 (USP4) is a member of the USPs family, which catalyzes the cleavage of ubiquitin from a series of protein substrates, thereby modulating a number of cellular signaling pathways. In this study, we aimed to explore the expression profile of USP4 in lung adenocarcinoma (LUAD) using large patient cohorts in the Cancer Genome Atlas and the International Cancer Genome Consortium and to investigate its prognostic value and the possible mechanisms of its dysregulation. Results showed that USP4 was significantly downregulated in LUAD tissues (N = 514) compared with the normal controls (N = 59). The high USP4 expression group had significantly better overall survival (OS) and recurrence-free survival (RFS). Multivariate analysis showed that preserved USP4 expression was an independent prognostic factor of favorable OS (HR: 0.574, 95%CI: 0.427-0.771, P < 0.001) and RFS (HR: 0.625, 95%CI: 0.444-0.880, P = 0.007) in LUAD. In comparison, although USP4 was downregulated in lung squamous cell carcinoma, its expression had no prognostic value in term of OS and RFS. By examining USP4 DNA copy number alterations (CNAs) (N = 511) and DNA methylation (N = 453) in LUAD, we found that DNA shallow deletion was frequent (-1, N = 239, 46.8%) and was associated with significantly decreased USP4 expression compared with the copy-neutral (0) cases. The methylation status of some CpG sites in USP4 DNA was negatively correlated with USP4 expression. Based on these findings, we infer that USP4 expression might be a favorable biomarker in terms of OS and RFS in LUAD patients. DNA shallow deletion and hypermethylation might be two important mechanisms of decreased USP4 in these patients. © 2018 IUBMB Life, 70(7):670-677, 2018.
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Affiliation(s)
- Ming Zhong
- Department of Respiration, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Qi Jiang
- Department of Nephrology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Ronghui Jin
- Department of Respiration, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
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33
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Courtois G, Fauvarque MO. The Many Roles of Ubiquitin in NF-κB Signaling. Biomedicines 2018; 6:E43. [PMID: 29642643 PMCID: PMC6027159 DOI: 10.3390/biomedicines6020043] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 03/31/2018] [Accepted: 04/02/2018] [Indexed: 12/24/2022] Open
Abstract
The nuclear factor κB (NF-κB) signaling pathway ubiquitously controls cell growth and survival in basic conditions as well as rapid resetting of cellular functions following environment changes or pathogenic insults. Moreover, its deregulation is frequently observed during cell transformation, chronic inflammation or autoimmunity. Understanding how it is properly regulated therefore is a prerequisite to managing these adverse situations. Over the last years evidence has accumulated showing that ubiquitination is a key process in NF-κB activation and its resolution. Here, we examine the various functions of ubiquitin in NF-κB signaling and more specifically, how it controls signal transduction at the molecular level and impacts in vivo on NF-κB regulated cellular processes.
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34
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Li T, Yan B, Ma Y, Weng J, Yang S, Zhao N, Wang X, Sun X. Ubiquitin-specific protease 4 promotes hepatocellular carcinoma progression via cyclophilin A stabilization and deubiquitination. Cell Death Dis 2018; 9:148. [PMID: 29396555 PMCID: PMC5833721 DOI: 10.1038/s41419-017-0182-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 11/21/2017] [Accepted: 11/22/2017] [Indexed: 12/19/2022]
Abstract
Ubiquitin-specific protease 4 (USP4) is a member of the deubiquitinating enzyme family, which plays an important role in human tumor diseases. However, the mechanisms by which USP4 facilitates tumor development, especially in hepatocellular carcinoma (HCC), remain unclear. Clinically, we found that USP4 is overexpressed in human HCC tissues compared with adjacent non-tumoral tissues and is significantly correlated with malignant phenotype characteristics, including tumor size, tumor number, differentiation, serum alpha-fetoprotein level, and vascular invasion. Moreover, Kaplan-Meier survival analysis showed a poor overall survival rate in patients with USP4-overexpressing tumors. Analyses of univariate and multivariate Cox proportional hazard models indicated that USP4 is a prognostic biomarker for poor outcome. Using in vitro and in vivo assays, we demonstrated that USP4 overexpression enhanced HCC cell growth, migration, and invasion. Mechanistically, cyclophilin A (CypA) was identified as an important molecule for USP4-mediated oncogenic activity in HCC. We observed that USP4 interacted with CypA and inhibited CypA degradation via deubiquitination in HCC cells. Subsequently, the USP4/CypA complex activated the MAPK signaling pathway and prevented CrkII phosphorylation. These data suggest that USP4 acts as a novel prognostic marker, offering potential therapeutic opportunities for HCC.
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Affiliation(s)
- Tianyi Li
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Bin Yan
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Yang Ma
- Department of General Surgery, Ruijin Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Junyong Weng
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Shouwen Yang
- Department of Gynaecology, International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Nan Zhao
- Department of General Surgery, Shanghai General Hospital, Nanjing Medical University, Shanghai, China
| | - Xiaoliang Wang
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China.
| | - Xing Sun
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China.
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35
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Mothersill C, Smith R, Wang J, Rusin A, Fernandez-Palomo C, Fazzari J, Seymour C. Biological Entanglement-Like Effect After Communication of Fish Prior to X-Ray Exposure. Dose Response 2018; 16:1559325817750067. [PMID: 29479295 PMCID: PMC5818098 DOI: 10.1177/1559325817750067] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 08/31/2017] [Accepted: 09/26/2017] [Indexed: 12/24/2022] Open
Abstract
The phenomenon by which irradiated organisms including cells in vitro communicate with unirradiated neighbors is well established in biology as the radiation-induced bystander effect (RIBE). Generally, the purpose of this communication is thought to be protective and adaptive, reflecting a highly conserved evolutionary mechanism enabling rapid adjustment to stressors in the environment. Stressors known to induce the effect were recently shown to include chemicals and even pathological agents. The mechanism is unknown but our group has evidence that physical signals such as biophotons acting on cellular photoreceptors may be implicated. This raises the question of whether quantum biological processes may occur as have been demonstrated in plant photosynthesis. To test this hypothesis, we decided to see whether any form of entanglement was operational in the system. Fish from 2 completely separate locations were allowed to meet for 2 hours either before or after which fish from 1 location only (group A fish) were irradiated. The results confirm RIBE signal production in both skin and gill of fish, meeting both before and after irradiation of group A fish. The proteomic analysis revealed that direct irradiation resulted in pro-tumorigenic proteomic responses in rainbow trout. However, communication from these irradiated fish, both before and after they had been exposed to a 0.5 Gy X-ray dose, resulted in largely beneficial proteomic responses in completely nonirradiated trout. The results suggest that some form of anticipation of a stressor may occur leading to a preconditioning effect or temporally displaced awareness after the fish become entangled.
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Affiliation(s)
| | | | - Jiaxi Wang
- Department of Chemistry, Mass Spectrometry Facility, Queen’s University, Kingston, Ontario, Canada
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He M, Zhou Z, Wu G, Chen Q, Wan Y. Emerging role of DUBs in tumor metastasis and apoptosis: Therapeutic implication. Pharmacol Ther 2017; 177:96-107. [PMID: 28279784 PMCID: PMC5565705 DOI: 10.1016/j.pharmthera.2017.03.001] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Malfunction of ubiquitin-proteasome system is tightly linked to tumor formation and tumor metastasis. Targeting the ubiquitin-pathway provides a new strategy for anti-cancer therapy. Despite the parts played by ubiquitin modifiers, removal of ubiquitin from the functional proteins by the deubiquitinating enzymes (DUBs) plays an important role in governing the multiple steps of the metastatic cascade, including local invasion, dissemination, and eventual colonization of the tumor to distant organs. Both deregulated ubiquitination and deubiquitination could lead to dysregulation of various critical events and pathways such as apoptosis and epithelial-mesenchymal transition (EMT). Recent TCGA study has further revealed the connection between mutations of DUBs and various types of tumors. In addition, emerging drug design targeting DUBs provides a new strategy for anti-cancer therapy. In this review, we will summarize the role of deubiquitination and highlight the recent discoveries of DUBs with regards to multiple metastatic events including anti-apoptosis pathway and EMT. We will further discuss the regulation of deubiquitination as a novel strategy for anti-cancer therapy.
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Affiliation(s)
- Mingjing He
- Department of Cell Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA; State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, PR China.
| | - Zhuan Zhou
- Department of Cell Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA.
| | - George Wu
- Department of Cell Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA.
| | - Qianming Chen
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, PR China.
| | - Yong Wan
- Department of Cell Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA.
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37
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Witt A, Vucic D. Diverse ubiquitin linkages regulate RIP kinases-mediated inflammatory and cell death signaling. Cell Death Differ 2017; 24:1160-1171. [PMID: 28475174 PMCID: PMC5520166 DOI: 10.1038/cdd.2017.33] [Citation(s) in RCA: 95] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Revised: 02/10/2017] [Accepted: 02/15/2017] [Indexed: 12/25/2022] Open
Abstract
Members of the RIP kinase family are key regulators of inflammation and cell death signaling implicated in maintaining immune responses and proper tissue homeostasis. Increasing evidence points to post-translational modifications of RIP1, RIP2 and RIP3 as being critical for regulating their function. Ubiquitination and the E3 ligases, such as inhibitors of apoptosis (IAP) proteins and LUBAC, that direct substrate selectivity as well as the deubiquitinating enzymes, such as A20 and OTULIN, that reverse these modifications dictate the outcome of RIP kinase signaling. Perturbation of the tightly regulated RIP1, RIP2 and RIP3 ubiquitination can lead to signaling disbalance in TNF, TLR and NOD1/2-controlled pathways and result in severe human pathologies. In this review, we focus on the biological function of ubiquitin-modifying enzymes in the context of RIP1, RIP2 and RIP3 signaling. We also discuss the impact of deregulated ubiquitin networks in RIP1, RIP2 and RIP3 signaling pathways on human health.
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Affiliation(s)
- Axel Witt
- Department of Early Discovery Biochemistry, Genentech, 1 DNA Way, South San Francisco, CA 94080, USA
| | - Domagoj Vucic
- Department of Early Discovery Biochemistry, Genentech, 1 DNA Way, South San Francisco, CA 94080, USA
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38
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EXPRESSION OF UBIQUITIN SPECIFIC PEPTIDASE GENES IN IRE1 KNOCKDOWN U87 GLIOMA CELLS UPON GLUCOSE DEPRIVATION. BIOTECHNOLOGIA ACTA 2016. [DOI: 10.15407/biotech9.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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39
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Li Y, Jiang D, Zhang Q, Liu X, Cai Z. Ubiquitin-specific protease 4 inhibits breast cancer cell growth through the upregulation of PDCD4. Int J Mol Med 2016; 38:803-11. [PMID: 27430936 PMCID: PMC4990282 DOI: 10.3892/ijmm.2016.2685] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2015] [Accepted: 07/04/2016] [Indexed: 01/23/2023] Open
Abstract
Breast cancer is a common malignant tumor affecting women. The study of the association between breast cancer and molecular aberrations may lead to the development of novel diagnostic and therapeutic strategies for the disease. In the present study, we examined the role of ubiquitin-specific protease 4 (USP4) in breast cancer. We found that USP4 expression was significantly decreased in breast cancer tissue samples compared with paired normal breast tissue samples (P<0.001). USP4 was identified as a tumor suppressor. In addition, by inducing USP4 overexpression (using a USP4 overexpression plasmid) or the knockdown of USP4 (by transfection with a USP4 shRNA plasmid), we found that USP4 inhibited cell proliferation in vitro. We also found that USP4 suppressed tumor growth by using a mouse tumor xenograft model. Moreover, programmed cell death 4 (PCD4) was identified to be a target of USP4, which plays a role as a tumor suppressor. As a whole, our findings sugggest that USP4 acts as a tumor suppressor in breast cancer and that it may be an effective target for the treatment of breast cancer.
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Affiliation(s)
- Yang Li
- Department of Breast Surgery, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning 110042
| | - Daqing Jiang
- Department of Breast Surgery, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning 110042
| | - Qi Zhang
- Department of Breast Surgery, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning 110042
| | - Xiaoli Liu
- Department of Interventional Radiology, The Second Affiliated Hospital of Dalian Medical University
| | - Zhengang Cai
- Department of Breast Surgery, The First Affiliated Hospital, Dalian Medical University, Dalian, Liaoning 116023, P.R. China
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40
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Liu X, Shi F, Li Y, Yu X, Peng S, Li W, Luo X, Cao Y. Post-translational modifications as key regulators of TNF-induced necroptosis. Cell Death Dis 2016; 7:e2293. [PMID: 27383048 PMCID: PMC4973344 DOI: 10.1038/cddis.2016.197] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2016] [Revised: 05/20/2016] [Accepted: 06/07/2016] [Indexed: 12/17/2022]
Abstract
Necroptosis is a novel form of programmed cell death that is independent of caspase activity. Different stimuli can trigger necroptosis. At present, the most informative studies about necroptosis derive from the tumor necrosis factor (TNF)-triggered system. The initiation of TNF-induced necroptosis requires the kinase activity of receptor-interacting protein 1 and 3 (RIP1 and RIP3). Evidence now reveals that the ability of RIP1 and RIP3 to modulate this key cellular event is tightly controlled by post-translational modifications, including ubiquitination, phosphorylation, caspase 8-mediated cleavage and GlcNAcylation. These regulatory events coordinately determine whether a cell will survive or die by apoptosis or necroptosis. In this review, we highlight recent advances in the study of post-translational modifications during TNF-induced necroptosis and discuss how these modifications regulate the complex and delicate control of programmed necrosis.
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Affiliation(s)
- X Liu
- Cancer Research Institute, Xiangya School of Medicine, Central South University, Hunan, China.,Key Laboratory of Chinese Ministry of Education, Central South University, Hunan, China.,Key Laboratory of Carcinogenesis of Chinese Ministry of Public Health, Central South University, Hunan, China
| | - F Shi
- Cancer Research Institute, Xiangya School of Medicine, Central South University, Hunan, China.,Key Laboratory of Chinese Ministry of Education, Central South University, Hunan, China.,Key Laboratory of Carcinogenesis of Chinese Ministry of Public Health, Central South University, Hunan, China
| | - Y Li
- Cancer Research Institute, Xiangya School of Medicine, Central South University, Hunan, China.,Key Laboratory of Chinese Ministry of Education, Central South University, Hunan, China.,Key Laboratory of Carcinogenesis of Chinese Ministry of Public Health, Central South University, Hunan, China
| | - X Yu
- Cancer Research Institute, Xiangya School of Medicine, Central South University, Hunan, China.,Key Laboratory of Chinese Ministry of Education, Central South University, Hunan, China.,Key Laboratory of Carcinogenesis of Chinese Ministry of Public Health, Central South University, Hunan, China.,The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Hunan, China
| | - S Peng
- Cancer Research Institute, Xiangya School of Medicine, Central South University, Hunan, China.,Key Laboratory of Chinese Ministry of Education, Central South University, Hunan, China.,Key Laboratory of Carcinogenesis of Chinese Ministry of Public Health, Central South University, Hunan, China
| | - W Li
- Cancer Research Institute, Xiangya School of Medicine, Central South University, Hunan, China.,Key Laboratory of Chinese Ministry of Education, Central South University, Hunan, China.,Key Laboratory of Carcinogenesis of Chinese Ministry of Public Health, Central South University, Hunan, China.,The Third Xiangya Hospital, Central South University, Hunan, China
| | - X Luo
- Cancer Research Institute, Xiangya School of Medicine, Central South University, Hunan, China.,Key Laboratory of Chinese Ministry of Education, Central South University, Hunan, China.,Key Laboratory of Carcinogenesis of Chinese Ministry of Public Health, Central South University, Hunan, China
| | - Y Cao
- Cancer Research Institute, Xiangya School of Medicine, Central South University, Hunan, China.,Key Laboratory of Chinese Ministry of Education, Central South University, Hunan, China.,Key Laboratory of Carcinogenesis of Chinese Ministry of Public Health, Central South University, Hunan, China
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41
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Liu C, Liu C, Liu H, Gong L, Tao T, Shen Y, Zhu S, Shen A. Increased Expression of Ubiquitin-Specific Protease 4 Participates in Neuronal Apoptosis After Intracerebral Hemorrhage in Adult Rats. Cell Mol Neurobiol 2016; 37:427-435. [PMID: 27114249 DOI: 10.1007/s10571-016-0375-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 04/15/2016] [Indexed: 02/07/2023]
Abstract
Ubiquitinating enzymes catalyze protein ubiquitination, a reversible process countered by deubiquitinating enzyme (DUB) action. Ubiquitin-specific protease 4 (USP4) is a member of the ubiquitin-specific protease (USP) family of DUBs that has a role in spliceosome regulation. In the present study, we demonstrated that USP4 may be involved in neuronal apoptosis in the processes of intracerebral hemorrhage (ICH). We obtained a significant up-regulation of USP4 in neurons adjacent to the hematoma following ICH by the results of Western blot, immunohistochemistry, and immunofluorescence. Increasing USP4 level was found to be accompanied by the up-regulation of active caspase-3, γH2AX, Bax, and decreased expression of Bcl-2. In addition, USP4 co-localized well with γH2AX in the nucleus in the ICH model and hemin-induced apoptosis model. Moreover, in vitro study, knocking down USP4 by USP4-specific siRNA in PC12 cells reduced active caspase-3 expression. All these results above suggested that USP4 may be involved in neuronal apoptosis after ICH.
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Affiliation(s)
- Chao Liu
- Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu, China.,Co-innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu, China
| | - Chun Liu
- Laboratory Animal Center, Nantong University, Nantong, 226001, Jiangsu, China
| | - Hanzhang Liu
- Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu, China.,Co-innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu, China
| | - Leilei Gong
- Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu, China.,Co-innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu, China
| | - Tao Tao
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College of Nantong University, Nantong, 226001, Jiangsu, China
| | - Yifen Shen
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College of Nantong University, Nantong, 226001, Jiangsu, China
| | - Shunxing Zhu
- Laboratory Animal Center, Nantong University, Nantong, 226001, Jiangsu, China.
| | - Aiguo Shen
- Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu, China. .,Co-innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu, China.
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42
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Hwang SJ, Lee HW, Kim HR, Lee H, Shin CH, Yun SI, Lee DH, Kim DH, Kim KK, Joo KM, Kim HH. Ubiquitin-specific protease 4 controls metastatic potential through β-catenin stabilization in brain metastatic lung adenocarcinoma. Sci Rep 2016; 6:21596. [PMID: 26883469 PMCID: PMC4756316 DOI: 10.1038/srep21596] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 01/27/2016] [Indexed: 01/01/2023] Open
Abstract
Brain metastasis is the most common type of intracranial cancer and is the main cause of cancer-associated mortality. Brain metastasis mainly originates from lung cancer. Using a previously established in vitro brain metastatic model, we found that brain metastatic PC14PE6/LvBr4 cells exhibited higher expression of β-catenin and increased migratory activity than parental PC14PE6 cells. Knockdown of β-catenin dramatically suppressed the motility and invasiveness of PC14PE6/LvBr4 cells, indicating β-catenin is involved in controlling metastatic potential. Since β-catenin protein was increased without a significant change in its mRNA levels, the mechanism underlying increased β-catenin stability was investigated. We found that ubiquitin-specific protease 4 (USP4), recently identified as a β-catenin-specific deubiquitinylating enzyme, was highly expressed in PC14PE6/LvBr4 cells and involved in the increased stability of β-catenin protein. Similar to β-catenin knockdown, USP4-silenced PC14PE6/LvBr4 cells showed decreased migratory and invasive abilities. Moreover, knockdown of both USP4 and β-catenin inhibited clonogenicity and induced mesenchymal-epithelial transition by downregulating ZEB1 in PC14PE6/LvBr4 cells. Using bioluminescence imaging, we found that knockdown of USP4 suppressed brain metastasis in vivo and significantly increased overall survival and brain metastasis-free survival. Taken together, our results indicate that USP4 is a promising therapeutic target for brain metastasis in patients with lung adenocarcinoma.
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Affiliation(s)
- Su Jin Hwang
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul, Korea
| | - Hye Won Lee
- Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Hye Ree Kim
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul, Korea
| | - Hong Lee
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul, Korea
| | - Chang Hoon Shin
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul, Korea
| | - Sun-Il Yun
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon, Korea
| | - Dong Heon Lee
- Department of Neurosurgery, Institute for Refractory Cancer Research, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Duk-Hwan Kim
- Department of Anatomy and Cell Biology, Sungkyunkwan University School of Medicine, Suwon, Korea.,Center for Genome Research, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Kyeong Kyu Kim
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul, Korea.,Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon, Korea.,Samsung Biomedical Research Institute, Samsung Medical Center, Seoul, Korea
| | - Kyeung Min Joo
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul, Korea.,Department of Anatomy and Cell Biology, Sungkyunkwan University School of Medicine, Suwon, Korea
| | - Hyeon Ho Kim
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul, Korea.,Samsung Biomedical Research Institute, Samsung Medical Center, Seoul, Korea
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43
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Xing C, Lu XX, Guo PD, Shen T, Zhang S, He XS, Gan WJ, Li XM, Wang JR, Zhao YY, Wu H, Li JM. Ubiquitin-Specific Protease 4-Mediated Deubiquitination and Stabilization of PRL-3 Is Required for Potentiating Colorectal Oncogenesis. Cancer Res 2015; 76:83-95. [PMID: 26669864 DOI: 10.1158/0008-5472.can-14-3595] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Accepted: 10/04/2015] [Indexed: 11/16/2022]
Abstract
Ubiquitin specific protease 4 (USP4) is a deubiquitinating enzyme with key roles in the regulation of p53 and TGFβ signaling, suggesting its importance in tumorigenesis. However, the mechanisms and regulatory roles of USP4 in cancer, including colorectal cancer, remain largely elusive. Here, we present the first evidence that USP4 regulates the growth, invasion, and metastasis of colorectal cancer. USP4 expression was significantly elevated in colorectal cancer tissues and was significantly associated with tumor size, differentiation, distant metastasis, and poor survival. Knockdown of USP4 diminished colorectal cancer cell growth, colony formation, migration, and invasion in vitro and metastasis in vivo. Importantly, we found that phosphatase of regenerating liver-3 (PRL-3) is indispensable for USP4-mediated oncogenic activity in colorectal cancer. Mechanistically, we observed that USP4 interacted with and stabilized PRL-3 via deubiquitination. This resulted in activation of Akt and reduction of E-cadherin, critical regulators of cancer cell growth and metastasis. Examination of clinical samples confirmed that USP4 expression positively correlates with PRL-3 protein expression, but not mRNA transcript levels. Taken together, our results demonstrate that aberrant expression of USP4 contributes to the development and progression of colorectal cancer and reveal a critical mechanism underlying USP4-mediated oncogenic activity. These observations suggest that the potential of harnessing proteolytic degradation processes for therapeutic manipulation may offer a much-needed new approach for improving colorectal cancer treatment strategies.
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Affiliation(s)
- Cheng Xing
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xing-Xing Lu
- Pathology Center and Department of Pathology, Soochow University, Suzhou, China
| | - Peng-Da Guo
- Pathology Center and Department of Pathology, Soochow University, Suzhou, China
| | - Tong Shen
- Pathology Center and Department of Pathology, Soochow University, Suzhou, China
| | - Shen Zhang
- Pathology Center and Department of Pathology, Soochow University, Suzhou, China
| | - Xiao-Shun He
- Pathology Center and Department of Pathology, Soochow University, Suzhou, China
| | - Wen-Juan Gan
- Pathology Center and Department of Pathology, Soochow University, Suzhou, China
| | - Xiu-Ming Li
- Pathology Center and Department of Pathology, Soochow University, Suzhou, China
| | - Jing-Ru Wang
- Pathology Center and Department of Pathology, Soochow University, Suzhou, China
| | - Yuan-Yuan Zhao
- Pathology Center and Department of Pathology, Soochow University, Suzhou, China
| | - Hua Wu
- Pathology Center and Department of Pathology, Soochow University, Suzhou, China.
| | - Jian-Ming Li
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China. Pathology Center and Department of Pathology, Soochow University, Suzhou, China.
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44
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Vlasschaert C, Xia X, Coulombe J, Gray DA. Evolution of the highly networked deubiquitinating enzymes USP4, USP15, and USP11. BMC Evol Biol 2015; 15:230. [PMID: 26503449 PMCID: PMC4624187 DOI: 10.1186/s12862-015-0511-1] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Accepted: 10/17/2015] [Indexed: 12/19/2022] Open
Abstract
Background USP4, USP15 and USP11 are paralogous deubiquitinating enzymes as evidenced by structural organization and sequence similarity. Based on known interactions and substrates it would appear that they have partially redundant roles in pathways vital to cell proliferation, development and innate immunity, and elevated expression of all three has been reported in various human malignancies. The nature and order of duplication events that gave rise to these extant genes has not been determined, nor has their functional redundancy been established experimentally at the organismal level. Methods We have employed phylogenetic and syntenic reconstruction methods to determine the chronology of the duplication events that generated the three paralogs and have performed genetic crosses to evaluate redundancy in mice. Results Our analyses indicate that USP4 and USP15 arose from whole genome duplication prior to the emergence of jawed vertebrates. Despite having lower sequence identity USP11 was generated later in vertebrate evolution by small-scale duplication of the USP4-encoding region. While USP11 was subsequently lost in many vertebrate species, all available genomes retain a functional copy of either USP4 or USP15, and through genetic crosses of mice with inactivating mutations we have confirmed that viability is contingent on a functional copy of USP4 or USP15. Loss of ubiquitin-exchange regulation, constitutive skipping of the seventh exon and neural-specific expression patterns are derived states of USP11. Post-translational modification sites differ between USP4, USP15 and USP11 throughout evolution. Conclusions In isolation sequence alignments can generate erroneous USP gene phylogenies. Through a combination of methodologies the gene duplication events that gave rise to USP4, USP15, and USP11 have been established. Although it operates in the same molecular pathways as the other USPs, the rapid divergence of the more recently generated USP11 enzyme precludes its functional interchangeability with USP4 and USP15. Given their multiplicity of substrates the emergence (and in some cases subsequent loss) of these USP paralogs would be expected to alter the dynamics of the networks in which they are embedded. Electronic supplementary material The online version of this article (doi:10.1186/s12862-015-0511-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Caitlyn Vlasschaert
- Department of Biology, University of Ottawa, Ottawa, Canada. .,Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, Canada. .,The Ottawa Hospital Research Institute, Ottawa, Canada.
| | - Xuhua Xia
- Department of Biology, University of Ottawa, Ottawa, Canada. .,Ottawa Institute of Systems Biology, Ottawa, Canada.
| | | | - Douglas A Gray
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, Canada. .,The Ottawa Hospital Research Institute, Ottawa, Canada. .,Centre for Cancer Therapeutics, Ottawa Hospital Research Institute, 501 Smyth Road, Ottawa, ON, K1H 8L6, Canada.
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45
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Yun SI, Kim HH, Yoon JH, Park WS, Hahn MJ, Kim HC, Chung CH, Kim KK. Ubiquitin specific protease 4 positively regulates the WNT/β-catenin signaling in colorectal cancer. Mol Oncol 2015; 9:1834-51. [PMID: 26189775 DOI: 10.1016/j.molonc.2015.06.006] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Revised: 06/24/2015] [Accepted: 06/25/2015] [Indexed: 12/12/2022] Open
Abstract
β-catenin is a key signal transducer in the canonical WNT pathway and is negatively regulated by ubiquitin-dependent proteolysis. Through screening of various deubiquitinating enzymes (DUBs), we identified ubiquitin specific protease 4 (USP4) as a candidate for β-catenin-specific DUB. The effects of USP4 overexpression or knockdown suggested that USP4 positively controls the stability of β-catenin and enhances β-catenin-regulated transcription. Domain mapping results revealed that the C-terminal catalytic domain is responsible for β-catenin binding and nuclear transport. Examination of colon cancer tissues from patients revealed a correlation between elevated expression levels of USP4 and β-catenin. Consistent with this correlation, USP4 knockdown in HCT116, a colon cancer cell line, reduced invasion and migration activity. These observations indicate that USP4 acts as a positive regulator of the WNT/β-catenin pathway by deubiquitination and facilitates nuclear localization of β-catenin. Therefore, we propose that USP4 is a potential target for anti-cancer therapeutics.
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Affiliation(s)
- Sun-Il Yun
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon 440-746, South Korea
| | - Hyeon Ho Kim
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Seoul 135-710, South Korea; Samsung Biomedical Research Institute, Samsung Medical Center, Seoul 135-710, South Korea
| | - Jung Hwan Yoon
- Department of Pathology, College of Medicine, The Catholic University of Korea, 505 Banpo-dong, Seocho-gu, Seoul 137-701, South Korea
| | - Won Sang Park
- Department of Pathology, College of Medicine, The Catholic University of Korea, 505 Banpo-dong, Seocho-gu, Seoul 137-701, South Korea
| | - Myong-Joon Hahn
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon 440-746, South Korea
| | - Hee Cheol Kim
- Department of Internal Medicine, Sungkyunkwan University School of Medicine, Seoul 135-710, South Korea
| | - Chin Ha Chung
- School of Biological Sciences, Seoul National University, Seoul 151-742, South Korea
| | - Kyeong Kyu Kim
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon 440-746, South Korea; Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Seoul 135-710, South Korea; Samsung Biomedical Research Institute, Samsung Medical Center, Seoul 135-710, South Korea.
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46
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Asaoka T, Ikeda F. New Insights into the Role of Ubiquitin Networks in the Regulation of Antiapoptosis Pathways. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2015; 318:121-58. [PMID: 26315885 DOI: 10.1016/bs.ircmb.2015.05.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Ubiquitin is a small modifier protein that conjugates on lysine (Lys) residues of substrates, and it can be targeted by another ubiquitin molecule to form chains through conjugation on the intrinsic Lys residues and methionine (Met) 1 residue. Ubiquitination of substrates by such chains determines the fate of substrates, thereby influencing various biological processes. In this chapter, we focus on apoptosis with an emphasis on the regulation by ubiquitination. The signal transduction of apoptosis is governed not only by the classical function of ubiquitin, which is proteasome-dependent degradation of substrates, but also by the apoptosis signaling complex formation guided by different types of ubiquitin chains. Ubiquitinations of pro- and antiapoptotic proteins are tightly regulated by particular sets of enzymes, such as ubiquitin E3 ligases and deubiquitinases (DUBs). We further discuss ubiquitination in the tumor necrosis factor (TNF) signaling pathway as an example for the ubiquitin-dependent regulation of apoptosis and cell survival.
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Affiliation(s)
- Tomoko Asaoka
- Institute of Molecular Biotechnology (IMBA), Vienna, Austria
| | - Fumiyo Ikeda
- Institute of Molecular Biotechnology (IMBA), Vienna, Austria
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47
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Pal A, Young MA, Donato NJ. Emerging potential of therapeutic targeting of ubiquitin-specific proteases in the treatment of cancer. Cancer Res 2014; 74:4955-66. [PMID: 25172841 DOI: 10.1158/0008-5472.can-14-1211] [Citation(s) in RCA: 156] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The ubiquitin-proteasome system (UPS) has emerged as a therapeutic focus and target for the treatment of cancer. The most clinically successful UPS-active agents (bortezomib and lenalidomide) are limited in application to hematologic malignancies, with only marginal efficacy in solid tumors. Inhibition of specific ubiquitin E3 ligases has also emerged as a valid therapeutic strategy, and many targets are currently being investigated. Another emerging and promising approach in regulation of the UPS involves targeting deubiquitinases (DUB). The DUBs comprise a relatively small group of proteins, most with cysteine protease activity that target several key proteins involved in regulation of tumorigenesis, apoptosis, senescence, and autophagy. Through their multiple contacts with ubiquitinated protein substrates involved in these pathways, DUBs provide an untapped means of modulating many important regulatory proteins that support oncogenic transformation and progression. Ubiquitin-specific proteases (USP) are one class of DUBs that have drawn special attention as cancer targets, as many are differentially expressed or activated in tumors or their microenvironment, making them ideal candidates for drug development. This review attempts to summarize the USPs implicated in different cancers, the current status of USP inhibitor-mediated pharmacologic intervention, and future prospects for USP inhibitors to treat diverse cancers.
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Affiliation(s)
- Anupama Pal
- Department of Microbiology and Immunology, University of Michigan School of Medicine, Ann Arbor, Michigan
| | - Matthew A Young
- Department of Pharmacology, University of Michigan School of Medicine, Ann Arbor, Michigan
| | - Nicholas J Donato
- Division of Hematology/Oncology, Department of Internal Medicine, University of Michigan School of Medicine and Comprehensive Cancer Center, Ann Arbor, Michigan.
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