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Li H, Sun Y, Yao Y, Ke S, Zhang N, Xiong W, Shi J, He C, Xiao X, Yu H, Dai P, Xiang B, Xing X, Xu G, Song W, Song J, Zhang J. USP8-governed GPX4 homeostasis orchestrates ferroptosis and cancer immunotherapy. Proc Natl Acad Sci U S A 2024; 121:e2315541121. [PMID: 38598341 PMCID: PMC11032464 DOI: 10.1073/pnas.2315541121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 03/18/2024] [Indexed: 04/12/2024] Open
Abstract
Ferroptosis is an iron-dependent type of regulated cell death resulting from extensive lipid peroxidation and plays a critical role in various physiological and pathological processes. However, the regulatory mechanisms for ferroptosis sensitivity remain incompletely understood. Here, we report that homozygous deletion of Usp8 (ubiquitin-specific protease 8) in intestinal epithelial cells (IECs) leads to architectural changes in the colonic epithelium and shortens mouse lifespan accompanied by increased IEC death and signs of lipid peroxidation. However, mice with heterozygous deletion of Usp8 in IECs display normal phenotype and become resistant to azoxymethane/dextran sodium sulfate-induced colorectal tumorigenesis. Mechanistically, USP8 interacts with and deubiquitinates glutathione peroxidase 4 (GPX4), leading to GPX4 stabilization. Thus, USP8 inhibition destabilizes GPX4 and sensitizes cancer cells to ferroptosis in vitro. Notably, USP8 inhibition in combination with ferroptosis inducers retards tumor growth and enhances CD8+ T cell infiltration, which potentiates tumor response to anti-PD-1 immunotherapy in vivo. These findings uncover that USP8 counteracts ferroptosis by stabilizing GPX4 and highlight targeting USP8 as a potential therapeutic strategy to boost ferroptosis for enhancing cancer immunotherapy.
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Affiliation(s)
- Haiou Li
- Department of Dermatology, Medical Research Institute, Frontier Science Center of Immunology and Metabolism, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan430071, China
| | - Yishuang Sun
- Department of Dermatology, Medical Research Institute, Frontier Science Center of Immunology and Metabolism, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan430071, China
- Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan430071, China
| | - Yingmeng Yao
- Department of Dermatology, Medical Research Institute, Frontier Science Center of Immunology and Metabolism, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan430071, China
- Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan430071, China
| | - Shanwen Ke
- Department of Dermatology, Medical Research Institute, Frontier Science Center of Immunology and Metabolism, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan430071, China
- Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan430071, China
| | - Nannan Zhang
- Department of Radiation Oncology, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou450008, China
| | - Wenjun Xiong
- Department of Dermatology, Medical Research Institute, Frontier Science Center of Immunology and Metabolism, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan430071, China
- Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan430071, China
| | - Jie Shi
- Department of Dermatology, Medical Research Institute, Frontier Science Center of Immunology and Metabolism, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan430071, China
- Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan430071, China
| | - Chuan He
- Department of Dermatology, Medical Research Institute, Frontier Science Center of Immunology and Metabolism, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan430071, China
- Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan430071, China
| | - Xiangling Xiao
- Department of Dermatology, Medical Research Institute, Frontier Science Center of Immunology and Metabolism, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan430071, China
- Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan430071, China
| | - Haisheng Yu
- Department of Dermatology, Medical Research Institute, Frontier Science Center of Immunology and Metabolism, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan430071, China
- Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan430071, China
| | - Panpan Dai
- Department of Radiation and Medical Oncology, Hubei Key Laboratory of Tumor Biological Behaviors, Hubei Cancer Clinical Study Center, Zhongnan Hospital of Wuhan University, Wuhan430071, China
| | - Bolin Xiang
- Department of Dermatology, Medical Research Institute, Frontier Science Center of Immunology and Metabolism, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan430071, China
- Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan430071, China
| | - Xixin Xing
- Department of Dermatology, Medical Research Institute, Frontier Science Center of Immunology and Metabolism, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan430071, China
- Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan430071, China
| | - Gaoshan Xu
- Department of Dermatology, Medical Research Institute, Frontier Science Center of Immunology and Metabolism, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan430071, China
- Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan430071, China
| | - Wenjing Song
- Department of Hepatobiliary and Pancreatic Surgery, Zhongnan Hospital of Wuhan University, Wuhan430071, China
| | - Jiquan Song
- Department of Dermatology, Medical Research Institute, Frontier Science Center of Immunology and Metabolism, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan430071, China
| | - Jinfang Zhang
- Department of Dermatology, Medical Research Institute, Frontier Science Center of Immunology and Metabolism, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan430071, China
- Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan430071, China
- Department of Radiation and Medical Oncology, Hubei Key Laboratory of Tumor Biological Behaviors, Hubei Cancer Clinical Study Center, Zhongnan Hospital of Wuhan University, Wuhan430071, China
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2
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He T, Wang Y, Lv W, Wang Y, Li X, Zhang Q, Shen HM, Hu J. FBP1 inhibits NSCLC stemness by promoting ubiquitination of Notch1 intracellular domain and accelerating degradation. Cell Mol Life Sci 2024; 81:87. [PMID: 38349431 PMCID: PMC10864425 DOI: 10.1007/s00018-024-05138-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 01/06/2024] [Accepted: 01/22/2024] [Indexed: 02/15/2024]
Abstract
The existence of cancer stem cells is widely acknowledged as the underlying cause for the challenging curability and high relapse rates observed in various tumor types, including non-small cell lung cancer (NSCLC). Despite extensive research on numerous therapeutic targets for NSCLC treatment, the strategies to effectively combat NSCLC stemness and achieve a definitive cure are still not well defined. The primary objective of this study was to examine the underlying mechanism through which Fructose-1,6-bisphosphatase 1 (FBP1), a gluconeogenic enzyme, functions as a tumor suppressor to regulate the stemness of NSCLC. Herein, we showed that overexpression of FBP1 led to a decrease in the proportion of CD133-positive cells, weakened tumorigenicity, and decreased expression of stemness factors. FBP1 inhibited the activation of Notch signaling, while it had no impact on the transcription level of Notch 1 intracellular domain (NICD1). Instead, FBP1 interacted with NICD1 and the E3 ubiquitin ligase FBXW7 to facilitate the degradation of NICD1 through the ubiquitin-proteasome pathway, which is independent of the metabolic enzymatic activity of FBP1. The aforementioned studies suggest that targeting the FBP1-FBXW7-NICD1 axis holds promise as a therapeutic approach for addressing the challenges of NSCLC recurrence and drug resistance.
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Affiliation(s)
- Tianyu He
- Department of Thoracic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yanye Wang
- Department of Thoracic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Wang Lv
- Department of Thoracic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yiqing Wang
- Department of Thoracic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xinye Li
- Department of Thoracic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Qingyi Zhang
- Department of Thoracic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Han-Ming Shen
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
- Faculty of Health Sciences, University of Macau, Macau, China.
| | - Jian Hu
- Department of Thoracic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
- Key Laboratory of Clinical Evaluation Technology for Medical Device of Zhejiang Province, Hangzhou, China.
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3
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Torres HM, Fang F, May DG, Bosshardt P, Hinojosa L, Roux KJ, Tao J. Comprehensive analysis of the proximity-dependent nuclear interactome for the oncoprotein NOTCH1 in live cells. J Biol Chem 2024; 300:105522. [PMID: 38043798 PMCID: PMC10788534 DOI: 10.1016/j.jbc.2023.105522] [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: 05/31/2023] [Revised: 10/25/2023] [Accepted: 11/21/2023] [Indexed: 12/05/2023] Open
Abstract
Notch signaling plays a critical role in cell fate decisions in all cell types. Furthermore, gain-of-function mutations in NOTCH1 have been uncovered in many human cancers. Disruption of Notch signaling has recently emerged as an attractive disease treatment strategy. However, the nuclear interaction landscape of the oncoprotein NOTCH1 remains largely unexplored. We therefore employed here a proximity-dependent biotin identification approach to identify in vivo protein associations with the nuclear Notch1 intracellular domain in live cells. We identified a large set of previously reported and unreported proteins that associate with NOTCH1, including general transcription and elongation factors, DNA repair and replication factors, coactivators, corepressors, and components of the NuRD and SWI/SNF chromatin remodeling complexes. We also found that Notch1 intracellular domain associates with protein modifiers and components of other signaling pathways that may influence Notch signal transduction and protein stability such as USP7. We further validated the interaction of NOTCH1 with histone deacetylase 1 or GATAD2B using protein network analysis, proximity-based ligation, in vivo cross-linking and coimmunoprecipitation assays in several Notch-addicted cancer cell lines. Through data mining, we also revealed potential drug targets for the inhibition of Notch signaling. Collectively, these results provide a valuable resource to uncover the mechanisms that fine-tune Notch signaling in tumorigenesis and inform therapeutic targets for Notch-addicted tumors.
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Affiliation(s)
- Haydee M Torres
- Cancer Biology & Immunotherapies Group, Sanford Research, Sioux Falls, South Dakota, USA; Department of Chemistry and Biochemistry, South Dakota State University, Brookings, South Dakota, USA
| | - Fang Fang
- Cancer Biology & Immunotherapies Group, Sanford Research, Sioux Falls, South Dakota, USA
| | - Danielle G May
- Enabling Technologies Group, Sanford Research, Sioux Falls, South Dakota, USA
| | - Paige Bosshardt
- Cancer Biology & Immunotherapies Group, Sanford Research, Sioux Falls, South Dakota, USA
| | - Leetoria Hinojosa
- Cancer Biology & Immunotherapies Group, Sanford Research, Sioux Falls, South Dakota, USA
| | - Kyle J Roux
- Enabling Technologies Group, Sanford Research, Sioux Falls, South Dakota, USA; Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls, South Dakota, USA
| | - Jianning Tao
- Cancer Biology & Immunotherapies Group, Sanford Research, Sioux Falls, South Dakota, USA; Department of Chemistry and Biochemistry, South Dakota State University, Brookings, South Dakota, USA; Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls, South Dakota, USA.
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Rebollar-Vega RG, Zuarth-Vázquez JM, Hernández-Ramírez LC. Clinical Spectrum of USP8 Pathogenic Variants in Cushing's Disease. Arch Med Res 2023; 54:102899. [PMID: 37925320 DOI: 10.1016/j.arcmed.2023.102899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 10/16/2023] [Accepted: 10/19/2023] [Indexed: 11/06/2023]
Abstract
Cushing's disease (CD) is a life-threatening condition with a challenging diagnostic process and scarce treatment options. CD is caused by usually benign adrenocorticotrophic hormone (ACTH)-secreting pituitary neuroendocrine tumors (PitNETs), known as corticotropinomas. These tumors are predominantly of sporadic origin, and usually derive from the monoclonal expansion of a mutated cell. Somatic activating variants located within a hotspot of the USP8 gene are present in 11-62% of corticotropinomas, making USP8 the most frequent genetic driver of corticotroph neoplasia. In contrast, other somatic defects such as those affecting the glucocorticoid receptor gene (NR3C1), the BRAF oncogene, the deubiquitinase-encoding gene USP48, and TP53 are infrequent. Moreover, patients with familial tumor syndromes, such as multiple endocrine neoplasia, familial isolated pituitary adenoma, and DICER1 rarely develop corticotropinomas. One of the main molecular alterations in USP8-driven tumors is an overactivation of the epidermal growth factor receptor (EGFR) signaling pathway, which induces ACTH production. Hotspot USP8 variants lead to persistent EGFR overexpression, thereby perpetuating the hyper-synthesis of ACTH. More importantly, they condition a characteristic transcriptomic signature that might be useful for the clinical prognosis of patients with CD. Nevertheless, the clinical phenotype associated with USP8 variants is less well defined. Hereby we discuss the current knowledge on the molecular pathogenesis and clinical picture associated with USP8 hotspot variants. We focus on the potential significance of the USP8 mutational status for the design of tailored clinical strategies in CD.
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Affiliation(s)
- Rosa G Rebollar-Vega
- Red de Apoyo a la Investigación, Coordinación de la Investigación Científica, Universidad Nacional Autónoma de México e Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Julia M Zuarth-Vázquez
- Department of Endocrinology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Laura C Hernández-Ramírez
- Red de Apoyo a la Investigación, Coordinación de la Investigación Científica, Universidad Nacional Autónoma de México e Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico.
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5
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Tang J, Long G, Hu K, Xiao D, Liu S, Xiao L, Zhou L, Tao Y. Targeting USP8 Inhibits O-GlcNAcylation of SLC7A11 to Promote Ferroptosis of Hepatocellular Carcinoma via Stabilization of OGT. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2302953. [PMID: 37867237 PMCID: PMC10667802 DOI: 10.1002/advs.202302953] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 09/10/2023] [Indexed: 10/24/2023]
Abstract
Hepatocellular carcinoma (HCC) is a lethal and aggressive human malignancy. The present study examins the anti-tumor effects of deubiquitylating enzymes (DUB) inhibitors in HCC. It is found that the inhibitor of ubiquitin specific peptidase 8 (USP8) and DUB-IN-3 shows the most effective anti-cancer responses. Targeting USP8 inhibits the proliferation of HCC and induces cell ferroptosis. In vivo xenograft and metastasis experiments indicate that inhibition of USP8 suppresses tumor growth and lung metastasis. DUB-IN-3 treatment or USP8 depletion decrease intracellular cystine levels and glutathione biosynthesis while increasing the accumulation of reactive oxygen species (ROS). Mechanistical studies reveal that USP8 stabilizes O-GlcNAc transferase (OGT) via inhibiting K48-specific poly-ubiquitination process on OGT protein at K117 site, and STE20-like kinase (SLK)-mediated S716 phosphorylation of USP8 is required for the interaction with OGT. Most importantly, OGT O-GlcNAcylates solute carrier family 7, member 11 (SLC7A11) at Ser26 in HCC cells, which is essential for SLC7A11 to import the cystine from the extracellular environment. Collectively, this study demonstrates that pharmacological inhibition or knockout of USP8 can inhibit the progression of HCC and induce ferroptosis via decreasing the stability of OGT, which imposes a great challenge that targeting of USP8 is a potential approach for HCC treatment.
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Affiliation(s)
- Jianing Tang
- Department of Liver SurgeryXiangya HospitalCentral South University110 Xiangya RoadChangshaHunan410078China
- National Clinical Research Center for Geriatric DisordersXiangya HospitalCentral South UniversityChangshaHunan410008China
| | - Guo Long
- Department of Liver SurgeryXiangya HospitalCentral South University110 Xiangya RoadChangshaHunan410078China
| | - Kuan Hu
- Department of Liver SurgeryXiangya HospitalCentral South University110 Xiangya RoadChangshaHunan410078China
| | - Desheng Xiao
- Department of PathologyXiangya HospitalCentral South UniversityChangshaHunan410078China
| | - Shuang Liu
- Department of OncologyInstitute of Medical SciencesNational Clinical Research Center for Geriatric DisordersXiangya HospitalCentral South UniversityChangshaHunan410078China
| | - Liang Xiao
- Department of Liver SurgeryXiangya HospitalCentral South University110 Xiangya RoadChangshaHunan410078China
| | - Ledu Zhou
- Department of Liver SurgeryXiangya HospitalCentral South University110 Xiangya RoadChangshaHunan410078China
| | - Yongguang Tao
- Department of PathologyKey Laboratory of Carcinogenesis and Cancer Invasion (Ministry of Education)Xiangya HospitalCentral South University110 Xiangya RoadChangshaHunan410078China
- NHC Key Laboratory of Carcinogenesis (Central South University)Cancer Research Institute and School of Basic MedicineCentral South University110 Xiangya RoadChangshaHunan410078China
- Department of Thoracic SurgeryHunan Key Laboratory of Early Diagnosis and Precision Therapy in Lung Cancer and Hunan Key Laboratory of Tumor Models and Individualized MedicineSecond Xiangya HospitalCentral South University110 Xiangya RoadChangshaHunan410011China
- Hunan Key Laboratory of Cancer MetabolismHunan Cancer Hospital and Affiliated Cancer Hospital of Xiangya School of MedicineCentral South University110 Xiangya RoadChangshaHunan410078China
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6
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Chen P, Dong Z, Zhu W, Chen J, Zhou Y, Ye Q, Liao X, Tan Y, Li C, Wang Y, Pang H, Wen C, Jiang Y, Li X, Li B, Aimaier A, Lin L, Sun J, Hou J, Tang L, Hou J, Li Y. Noncanonical regulation of HOIL-1 on cancer stemness and sorafenib resistance identifies pixantrone as a novel therapeutic agent for HCC. Hepatology 2023:01515467-990000000-00598. [PMID: 37820061 DOI: 10.1097/hep.0000000000000623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 08/16/2023] [Indexed: 10/13/2023]
Abstract
BACKGROUND AND AIMS Cancer stem cells (CSCs) contribute to therapy resistance in HCC. Linear ubiquitin chain assembly complex (LUBAC) has been reported to accelerate the progression of cancers, yet its role in the sorafenib response of HCC is poorly defined. Herein, we investigated the impact of LUBAC on sorafenib resistance and the CSC properties of HCC, and explored the potential targeted drugs. APPROACH AND RESULTS We found that HOIL-1, but not the other components of LUBAC, played a contributing role in LUBAC-mediated HCC sorafenib resistance, independent of its ubiquitin ligase activity. Both in vitro and in vivo assays revealed that the upregulated HOIL-1 expression enhanced the CSC properties of HCC. Mechanistically, HOIL-1 promoted sorafenib resistance and the CSC properties of HCC through Notch1 signaling. Mass spectrometry, co-immunoprecipitation, western blot, and immunofluorescence were used to determine that the A64/Q65 residues of HOIL-1 bound with the K78 residue of Numb, resulting in impaired Numb-mediated Notch1 lysosomal degradation. Notably, pixantrone was screened out by Autodock Vina, which was validated to disrupt HOIL-1/Numb interaction to inhibit Notch1 signaling and CSC properties by targeting the Q65 residue of HOIL-1. Moreover, pixantrone exerted synergistic effects with sorafenib for the treatment of HCC in different HCC mouse models. CONCLUSIONS HOIL-1 is critical in promoting sorafenib resistance and CSC properties of HCC through Notch1 signaling. Pixantrone targeting HOIL-1 restrains the sorafenib resistance and provides a potential therapeutic intervention for HCC.
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Affiliation(s)
- Peng Chen
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zheyu Dong
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Wei Zhu
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Junling Chen
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yuxin Zhou
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Qiuyue Ye
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xinxin Liao
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yongfa Tan
- Department of Hepatobiliary Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Chuanjiang Li
- Department of Hepatobiliary Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yuhao Wang
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Huajin Pang
- Department of General Surgery, Division of Vascular and Interventional Radiology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Chunhua Wen
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yuchuan Jiang
- Department of General Surgery, The First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Xiaoqing Li
- Department of Pathology, Nanfang Hospital and School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Bo Li
- Department of Hepatobiliary Surgery, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
| | - Aihetaimu Aimaier
- Department of Pathology, Nanfang Hospital and School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Li Lin
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jian Sun
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jiajie Hou
- Cancer Centre, Faculty of Health Sciences, University of Macau, Macau SAR, China
- MOE Frontier Science Centre for Precision Oncology, University of Macau, Macau SAR, China
| | - Libo Tang
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jinlin Hou
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yongyin Li
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
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7
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Sha B, Sun Y, Zhao S, Li M, Huang W, Li Z, Shi J, Han X, Li P, Hu T, Chen P. USP8 inhibitor-induced DNA damage activates cell cycle arrest, apoptosis, and autophagy in esophageal squamous cell carcinoma. Cell Biol Toxicol 2023; 39:2011-2032. [PMID: 35022897 DOI: 10.1007/s10565-021-09686-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Accepted: 11/29/2021] [Indexed: 12/16/2022]
Abstract
Increasing evidence suggests that targeting ubiquitin-specific peptidase 8 (USP8) serves as an attractive anti-cancer strategy. However, the role of USP8 inhibitor, DUB-IN-1, in esophageal squamous cell carcinoma (ESCC) cells still needs to be explored. Here, immunohistochemistry was employed to examine the expression of USP8 in ESCC tissues. Cell Counting Kit-8 (CCK-8) was used to evaluate cell proliferation ability, and propidium iodide (PI) was selected to test the effect of DUB-IN-1 on cell cycle. AnnexinV-FITC/PI staining and the activity of caspase 3 were detedcted to evaluate apoptosis. Transmission electron microscope, microtubule-associated protein 1 light-chain 3 (LC3) expression, and acridine orange (AO) staining were selected to check if there was autophagy. Comet assay and γ-H2AX immunofluorescence was used to monitor DNA damage. Rescue experiment was used to determine the key role of of p53 in cell cycle, apoptosis, and autophagy. Results revealed that the leve of USP8 was higher in ESCC tissues than that in tissues adjacent to carcinoma. DUB-IN-1, an USP8 inhibitor, caused DNA damage, led to G2/M phase block by p53-p21 axis, and triggered apoptosis by regulating the p53 target proteins including Bax, Noxa, and Puma. Besides, DUB-IN-1 could stimulate autophagy through p53-dependent adenosine 5'-monophosphate (AMP)-activated protein kinase (AMPK) activation. Taken together, this study revealed the cytotoxic effects and the mechanism of DUB-IN-1, which indicated that DUB-IN-1 may be a novel inhibitor targeting USP8 that can kill ESCC cells. USP8 inhibitor, DUB-IN-1, treatment could inhibit esophageal squamous cell carcinoma cell growth and induce G2/M cell cycle arrest, apoptosis, and autophagy by DNA damage-induced p53 activation. DUB-IN-1 treatment led to G2/M cell cycle arrest by upregulating the protein level of p21 and triggered apoptosis by modulating the p53 target proteins including Bax, Noxa, and Puma. Meanwhile, DUB-IN-1 treatment stimulated protective autophagy through p53-dependent AMPK activation. Collectively, these findings suggested that DNA damage-triggered p53 activation, p53-Puma/Noxa/Bax, p53-p21, and p53-AMPK pathways were all involved in the effect of DUB-IN-1.
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Affiliation(s)
- Beibei Sha
- Academy of Medical Sciences, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Yaxin Sun
- Academy of Medical Sciences, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Shan Zhao
- Academy of Medical Sciences, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Miaomiao Li
- Academy of Medical Sciences, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Wenjing Huang
- Academy of Medical Sciences, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Zheng Li
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, 450052, China
| | - Jianxiang Shi
- Precision Medicine Center, Henan Institute of Medical and Pharmaceutical Sciences & BGI College, Zhengzhou University, Zhengzhou, 450052, China
| | - Xuefei Han
- Academy of Medical Sciences, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Pei Li
- Academy of Medical Sciences, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Tao Hu
- Academy of Medical Sciences, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450001, China.
| | - Ping Chen
- Academy of Medical Sciences, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450001, China.
- Henan Key Laboratory of Precision Clinical Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
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8
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Cui J, Guo Y, Yin T, Gou S, Xiong J, Liang X, Lu C, Peng T. USP8 promotes gemcitabine resistance of pancreatic cancer via deubiquitinating and stabilizing Nrf2. Biomed Pharmacother 2023; 166:115359. [PMID: 37639742 DOI: 10.1016/j.biopha.2023.115359] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 08/21/2023] [Accepted: 08/22/2023] [Indexed: 08/31/2023] Open
Abstract
Gemcitabine (Gem) is the first-line chemotherapy drug for pancreatic cancer, but the acquired chemoresistance also hinders its application. Therefore, research about Gem resistance plays a crucial role in enhancing the therapeutic effect of Gem. As a deubiquitinating enzyme, ubiquitin-specific protease 8 (USP8) was shown to play vital roles in the tumorigenesis processes of several cancers; however, the effect of USP8 on Gem resistance of pancreatic cancer still remains largely unknown. In the current study, we observed that the expression of USP8 was increased in pancreatic cancer patients, it is related to the recurrence of Gem chemotherapy, and USP8 expression could be induced by Gem application. Furthermore, USP8 was found to promote Gem resistance both in vivo and in vitro via regulating cell viability and apoptosis. Moreover, USP8 enhanced the activation of Nrf2 signaling which is dependent on its deubiquitinase ability. At last, we illustrated that USP8 interacted with Nrf2 directly and deubiquitinated K48-linked polyubiquitin chains from Nrf2, stabilizing the expression of Nrf2. In summary, the manuscript revealed the role of USP8 in Gem chemoresistance and suggested USP8 as a potential therapeutic target for pancreatic cancer.
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Affiliation(s)
- Jing Cui
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yao Guo
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Tao Yin
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Shanmiao Gou
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jiongxin Xiong
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xueyi Liang
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Chong Lu
- Department of Thyroid and Breast Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| | - Tao Peng
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
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9
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Kim K, Ylaya K, Perry C, Lee MY, Kim JW, Chung JY, Hewitt SM. Quality Assessment of Proteins and RNA Following Storage in Archival Formalin-Fixed Paraffin-Embedded Human Breast Cancer Tissue Microarray Sections. Biopreserv Biobank 2023; 21:493-503. [PMID: 36264172 PMCID: PMC10623072 DOI: 10.1089/bio.2022.0090] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Although the immunogenicity of formalin-fixed paraffin-embedded tissue sections can decrease during storage and transport, the exact mechanism of antigenic loss and how to prevent it are not clear. Herein, we investigated changes in the expression of estrogen receptor (ER), progesterone receptor (PR), human epidermal growth factor receptor 2 (HER-2), E-cadherin, and Ki-67 in human breast tissue microarray (TMA) tissue sections stored for up to 3 months in dry and wet conditions. The positive rates of ER and PR expression were minimally changed after 3 months of storage, but the Allred scores of ER and PR stored in humid conditions decreased remarkably in comparison to fresh-cut tissue. The HER-2 antigenicity and RNA integrity of breast TMA sections stored in dry conditions diminished gradually with storage time, whereas the immunoreactivity and RNA quality of HER-2 in humid conditions decreased sharply as storage length increased. The area and intensity of E-cadherin staining in tissue sections stored in dry conditions did not change significantly and were minimally changed after 3 months, respectively. In contrast, the area and intensity of E-cadherin staining in tissue sections stored in humid conditions decreased significantly as storage length increased. Finally, the Ki-67 labeling index of tissue sections stored for 3 months in dry (9% decrease) and wet (31.9% decrease) conditions was decreased in comparison to fresh sections. In conclusion, these results indicate that water is a crucial factor for protein and RNA degradation in stored tissue sections, and detailed guidelines are required in the clinic.
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Affiliation(s)
- Kyungeun Kim
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
- Department of Pathology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Kris Ylaya
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Candice Perry
- Antibody Characterization Laboratory, Leidos Biomedical Research, Inc., Frederick, Maryland, USA
| | - Mi-Yeon Lee
- Division of Biostatistics, Department of R&D Management, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Jeong Won Kim
- Department of Pathology, Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Republic of Korea
| | - Joon-Yong Chung
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Stephen M Hewitt
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
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10
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Tang J, Long G, Xiao L, Zhou L. USP8 positively regulates hepatocellular carcinoma tumorigenesis and confers ferroptosis resistance through β-catenin stabilization. Cell Death Dis 2023; 14:360. [PMID: 37311739 DOI: 10.1038/s41419-023-05747-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 03/14/2023] [Accepted: 03/16/2023] [Indexed: 06/15/2023]
Abstract
Hepatocellular carcinoma (HCC) is the most common type of primary hepatic carcinoma, which is a growing public health problem worldwide. One of the main genetic alterations in HCC is the deregulated Wnt/β-catenin signaling, activation of β-catenin is associated with the progression of HCC. In the present study, we aimed to identify novel modulators in controlling β-catenin ubiquitination and stability. USP8 was overexpressed in HCC tissues and correlated with β-catenin protein level. High expression of USP8 indicated poor prognosis of HCC patients. USP8 depletion significantly decreased β-catenin protein level, β-catenin target genes expression and TOP-luciferase activity in HCC cells. Further mechanistic study revealed that the USP domain of USP8 interacted with the ARM domain of β-catenin. USP8 stabilized β-catenin protein via inhibiting K48-specific poly-ubiquitination process on β-catenin protein. In addition, USP8 depletion inhibited the proliferation, invasion and stemness of HCC cells and conferred ferroptosis resistance, which effects could be further rescued by β-catenin overexpression. In addition, the USP8 inhibitor DUB-IN-3 inhibited the aggressive phenotype and promoted ferroptosis of HCC cells through degradation of β-catenin. Thus, our study demonstrated that USP8 activated the Wnt/beta-catenin signaling through a post-translational mechanism of β-catenin. High expression of USP8 promoted the progression and inhibited ferroptosis of HCC. Targeting the USP8 may serve as a promising strategy for patients with HCC.
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Affiliation(s)
- Jianing Tang
- Department of Liver Surgery, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Guo Long
- Department of Liver Surgery, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Liang Xiao
- Department of Liver Surgery, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China.
| | - Ledu Zhou
- Department of Liver Surgery, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China.
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11
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Wang J, Gu Y, Yan X, Zhang J, Wang J, Ding Y. USP38 inhibits colorectal cancer cell proliferation and migration via downregulating HMX3 ubiquitylation. Cell Cycle 2023; 22:1169-1181. [PMID: 36204976 PMCID: PMC10193867 DOI: 10.1080/15384101.2022.2042776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 12/10/2021] [Accepted: 01/04/2022] [Indexed: 11/03/2022] Open
Abstract
Accumulating evidence has shown that H6 Family Homeobox 3 (HMX3) plays a crucial role in nervous system regulation. However, the regulatory mechanism of HMX3 in colorectal cancer (CRC) has seldom been studied. Herein, HMX3 was significantly downregulated in CRC, as demonstrated by qRT-PCR and WB analysis on clinical samples and a panel of cell lines. Besides, it was found that the expression of HMX3 was negatively correlated with survival of CRC patients. The functional analyses (EdU staining, CCK-8, colony formation, Transwell, and wound scratch assays) showed that CRC cell proliferation, migration, and invasion were significantly suppressed by HMX3 overexpression, while enhanced by HMX3 knockdown. Moreover, in vivo experiment revealed HMX3 overexpression could also suppress tumor growth. Combining bioinformatics and WB analysis, we preliminarily uncovered that HMX3 was involved in apoptosis and KRAS signaling pathways. Mechanistically, Ubiquitin-specific protease 38 (USP38) was identified as a novel post-translational regulator of HMX3, which could directly interact with HMX3 to stabilize its protein expression via deubiquitination. Furthermore, the role of USP38 silencing in promoting cell proliferation, migration, and invasion of CRC cells was blocked by HMX3 overexpression. In conclusion, our findings suggested that USP38/HMX3 axis is a novel promising therapeutic candidate for CRC.
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Affiliation(s)
- Jun Wang
- Department of General Surgery, Huai’an People’s Hospital of Hongze District, Huai ‘An City, Jiangsu Province, China
| | - Yongxing Gu
- Department of General Surgery, Huai’an People’s Hospital of Hongze District, Huai ‘An City, Jiangsu Province, China
| | - Xueqin Yan
- Department of General Surgery, Huai’an People’s Hospital of Hongze District, Huai ‘An City, Jiangsu Province, China
| | - Jie Zhang
- Department of General Surgery, Huai’an People’s Hospital of Hongze District, Huai ‘An City, Jiangsu Province, China
| | - Jun Wang
- Department of General Surgery, Huai’an People’s Hospital of Hongze District, Huai ‘An City, Jiangsu Province, China
| | - Yong Ding
- Department of General Surgery, Huai’an People’s Hospital of Hongze District, Huai ‘An City, Jiangsu Province, China
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12
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Mauri S, Bernardo G, Martinez A, Favaro M, Trevisan M, Cobraiville G, Fillet M, Caicci F, Whitworth AJ, Ziviani E. USP8 Down-Regulation Promotes Parkin-Independent Mitophagy in the Drosophila Brain and in Human Neurons. Cells 2023; 12:cells12081143. [PMID: 37190052 DOI: 10.3390/cells12081143] [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: 01/19/2023] [Revised: 03/28/2023] [Accepted: 03/30/2023] [Indexed: 05/17/2023] Open
Abstract
Stress-induced mitophagy, a tightly regulated process that targets dysfunctional mitochondria for autophagy-dependent degradation, mainly relies on two proteins, PINK1 and Parkin, which genes are mutated in some forms of familiar Parkinson's Disease (PD). Upon mitochondrial damage, the protein kinase PINK1 accumulates on the organelle surface where it controls the recruitment of the E3-ubiquitin ligase Parkin. On mitochondria, Parkin ubiquitinates a subset of mitochondrial-resident proteins located on the outer mitochondrial membrane, leading to the recruitment of downstream cytosolic autophagic adaptors and subsequent autophagosome formation. Importantly, PINK1/Parkin-independent mitophagy pathways also exist that can be counteracted by specific deubiquitinating enzymes (DUBs). Down-regulation of these specific DUBs can presumably enhance basal mitophagy and be beneficial in models in which the accumulation of defective mitochondria is implicated. Among these DUBs, USP8 is an interesting target because of its role in the endosomal pathway and autophagy and its beneficial effects, when inhibited, in models of neurodegeneration. Based on this, we evaluated autophagy and mitophagy levels when USP8 activity is altered. We used genetic approaches in D. melanogaster to measure autophagy and mitophagy in vivo and complementary in vitro approaches to investigate the molecular pathway that regulates mitophagy via USP8. We found an inverse correlation between basal mitophagy and USP8 levels, in that down-regulation of USP8 correlates with increased Parkin-independent mitophagy. These results suggest the existence of a yet uncharacterized mitophagic pathway that is inhibited by USP8.
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Affiliation(s)
- Sofia Mauri
- Department of Biology, University of Padova, 35121 Padova, Italy
| | - Greta Bernardo
- Department of Biology, University of Padova, 35121 Padova, Italy
| | - Aitor Martinez
- MRC Mitochondrial Biology Unit, Cambridge Biomedical Campus, University of Cambridge, Cambridge CB2 0XY, UK
| | | | - Marta Trevisan
- Department of Molecular Medicine (DMM), University of Padova, 35121 Padova, Italy
| | - Gael Cobraiville
- Laboratory for the Analysis of Medicines, Center for Interdisciplinary Research on Medicines (CIRM), Quartier Hopital, University of Liege, Avenue Hippocrate 15, 4000 Liege, Belgium
| | - Marianne Fillet
- Laboratory for the Analysis of Medicines, Center for Interdisciplinary Research on Medicines (CIRM), Quartier Hopital, University of Liege, Avenue Hippocrate 15, 4000 Liege, Belgium
| | - Federico Caicci
- Department of Biology, University of Padova, 35121 Padova, Italy
| | - Alexander J Whitworth
- MRC Mitochondrial Biology Unit, Cambridge Biomedical Campus, University of Cambridge, Cambridge CB2 0XY, UK
| | - Elena Ziviani
- Department of Biology, University of Padova, 35121 Padova, Italy
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13
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Zhang Z, Lu YX, Liu F, Sang L, Shi C, Xie S, Bian W, Yang JC, Yang Z, Qu L, Chen SY, Li J, Yang L, Yan Q, Wang W, Fu P, Shao J, Li X, Lin A. lncRNA BREA2 promotes metastasis by disrupting the WWP2-mediated ubiquitination of Notch1. Proc Natl Acad Sci U S A 2023; 120:e2206694120. [PMID: 36795754 PMCID: PMC9974429 DOI: 10.1073/pnas.2206694120] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 01/12/2023] [Indexed: 02/17/2023] Open
Abstract
Notch has been implicated in human cancers and is a putative therapeutic target. However, the regulation of Notch activation in the nucleus remains largely uncharacterized. Therefore, characterizing the detailed mechanisms governing Notch degradation will identify attractive strategies for treating Notch-activated cancers. Here, we report that the long noncoding RNA (lncRNA) BREA2 drives breast cancer metastasis by stabilizing the Notch1 intracellular domain (NICD1). Moreover, we reveal WW domain containing E3 ubiquitin protein ligase 2 (WWP2) as an E3 ligase for NICD1 at K1821 and a suppressor of breast cancer metastasis. Mechanistically, BREA2 impairs WWP2-NICD1 complex formation and in turn stabilizes NICD1, leading to Notch signaling activation and lung metastasis. BREA2 loss sensitizes breast cancer cells to inhibition of Notch signaling and suppresses the growth of breast cancer patient-derived xenograft tumors, highlighting its therapeutic potential in breast cancer. Taken together, these results reveal the lncRNA BREA2 as a putative regulator of Notch signaling and an oncogenic player driving breast cancer metastasis.
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Affiliation(s)
- Zhen Zhang
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang310058, China
- Cancer Center, Zhejiang University, Hangzhou, Zhejiang310058, China
- Key Laboratory for Cell and Gene Engineering of Zhejiang Province, Zhejiang310058, China
| | - Yun-xin Lu
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong510060, China
| | - Fangzhou Liu
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang310058, China
- Cancer Center, Zhejiang University, Hangzhou, Zhejiang310058, China
- Key Laboratory for Cell and Gene Engineering of Zhejiang Province, Zhejiang310058, China
| | - Lingjie Sang
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang310058, China
| | - Chengyu Shi
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang310058, China
| | - Shaofang Xie
- Key Laboratory of Structural Biology of Zhejiang Province, Westlake Laboratory of Life Sciences and Biomedicine, Westlake University, Hangzhou, Zhejiang310024, China
| | - Weixiang Bian
- Key Laboratory of Structural Biology of Zhejiang Province, Westlake Laboratory of Life Sciences and Biomedicine, Westlake University, Hangzhou, Zhejiang310024, China
| | - Jie-cheng Yang
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang310058, China
| | - Zuozhen Yang
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang310058, China
| | - Lei Qu
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang310058, China
| | - Shi-yi Chen
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang310058, China
| | - Jun Li
- Department of Pathology School of Medicine, The First Affiliated Hospital Zhejiang University, Hangzhou, Zhejiang310003, China
| | - Lu Yang
- Department of Radiotherapy, Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences, School of Medicine South China University of Technology, Guangzhou510080, China
| | - Qingfeng Yan
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang310058, China
| | - Wenqi Wang
- Department of Developmental and Cell Biology, University of California, Irvine, CA92697
| | - Peifen Fu
- Department of Breast Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang310003, China
| | - Jianzhong Shao
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang310058, China
| | - Xu Li
- Key Laboratory of Structural Biology of Zhejiang Province, Westlake Laboratory of Life Sciences and Biomedicine, Westlake University, Hangzhou, Zhejiang310024, China
| | - Aifu Lin
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang310058, China
- Cancer Center, Zhejiang University, Hangzhou, Zhejiang310058, China
- Key Laboratory for Cell and Gene Engineering of Zhejiang Province, Zhejiang310058, China
- Breast Center of the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang310003, China
- International School of Medicine, International Institutes of Medicine, The 4th Affiliated Hospital of Zhejiang University School of Medicine, Yiwu, Zhejiang322000, China
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14
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Long Y, Hu Z, Yang D, Wang F, Zhao C, Zhang Y, Zhang Y, Ma H, Lv H. Pharmacological inhibition of the ubiquitin-specific protease 8 effectively suppresses glioblastoma cell growth. Open Life Sci 2023; 18:20220562. [PMID: 36816802 PMCID: PMC9922063 DOI: 10.1515/biol-2022-0562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/08/2022] [Accepted: 01/04/2023] [Indexed: 02/11/2023] Open
Abstract
Glioblastoma (GBM) is a malignant brain tumor. The purpose of this study is to estimate the potential effects and underlying mechanisms of a ubiquitin-specific protease 8 (USP8) small-molecule inhibitor on the phenotypic characteristics of GBM cells. The growth, migration, invasion, and stemness of GBM LN229 and T98G cells were evaluated by conducting cell proliferation, colony formation, wound healing, transwell, Ki-67 staining, spheroid formation, and ionizing radiation assays, and the results collectively showed the suppressive effects of USP8 inhibition on GBM cells. Furthermore, transcriptomic profiling of GBM cells treated with the USP8 inhibitor deubiquitinase (DUB)-IN-1 revealed significantly altered mRNA expression induced by pharmacological USP8 inhibition, from which we confirmed downregulated Aurora kinase A (AURKA) protein levels using immunoblotting assays. Our findings indicated that the proliferation, invasion, and stemness of LN229 and T98G cells were markedly suppressed by USP8 inhibition. Pharmacological USP8 suppression elicits multiple tumor-inhibitory effects, likely through dysregulating various mRNA expression events, including that of the key cell cycle regulator and oncogenic protein AURKA. Therefore, our observations corroborate the GBM-supportive roles of USP8 and suggest pharmacological USP8 inhibition is a viable therapeutic approach to target GBM. The purpose of this study was to investigate the effect and mechanism of action of the USP8 inhibitor DUB-IN-1 on GBM.
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Affiliation(s)
- Yu Long
- Department of Pharmacy, The Second Affiliated Hospital, Dalian Medical University, No. 467 Zhongshan Road, Dalian 116000, China
| | - Zengchun Hu
- Department of Neurosurgery, The Second Affiliated Hospital, Dalian Medical University, Dalian 116000, China
| | - Dian Yang
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian 116000, China
| | - Fuqiang Wang
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian 116000, China
| | - Chen’ge Zhao
- Department of Pharmacy, The Second Affiliated Hospital, Dalian Medical University, No. 467 Zhongshan Road, Dalian 116000, China
| | - Yang Zhang
- Department of Pharmacy, The Second Affiliated Hospital, Dalian Medical University, No. 467 Zhongshan Road, Dalian 116000, China
| | - Yingqiu Zhang
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian 116000, China
| | - Hui Ma
- Department of Pharmacy, The Second Affiliated Hospital, Dalian Medical University, No. 467 Zhongshan Road, Dalian 116000, China
| | - Huiyi Lv
- Department of Pharmacy, The Second Affiliated Hospital, Dalian Medical University, No. 467 Zhongshan Road, Dalian 116000, China,Dalian Kexiang Technology Development Co., LTD, No. 467 Zhongshan Road, Dalian 116000, China
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15
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Yang H, Zhang X, Lao M, Sun K, He L, Xu J, Duan Y, Chen Y, Ying H, Li M, Guo C, Lu Q, Wang S, Su W, Liang T, Bai X. Targeting ubiquitin-specific protease 8 sensitizes anti-programmed death-ligand 1 immunotherapy of pancreatic cancer. Cell Death Differ 2023; 30:560-575. [PMID: 36539510 PMCID: PMC9950432 DOI: 10.1038/s41418-022-01102-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 11/14/2022] [Accepted: 11/29/2022] [Indexed: 12/24/2022] Open
Abstract
Programmed death-1 (PD-1) and its ligand programmed death-ligand 1 (PD-L1) help tumor cells evade immune surveillance, and are regarded as important targets of anti-tumor immunotherapy. Post-translational modification of PD-L1 has potential value in immunosuppression. Here, we identified that ubiquitin-specific protease 8 (USP8) deubiquitinates PD-L1. Pancreatic cancer tissues exhibited significantly increased USP8 levels compared with those in normal tissues. Clinically, the expression of USP8 showed a significant association with the tumor-node-metastasis stage in multiple patient-derived cohorts of pancreatic cancer. Meanwhile, USP8 deficiency could reduce tumor invasion and migration and tumor size in an immunity-dependent manner, and improve anti-tumor immunogenicity. USP8 inhibitor pretreatment led to reduced tumorigenesis and immunocompetent mice with Usp8 knockdown tumors exhibited extended survival. Moreover, USP8 interacted positively with PD-L1 and upregulated its expression by inhibiting the ubiquitination-regulated proteasome degradation pathway in pancreatic cancer. Combination therapy with a USP8 inhibitor and anti-PD-L1 effectively suppressed pancreatic tumor growth by activation of cytotoxic T-cells and the anti-tumor immunity was mainly dependent on the PD-L1 pathway and CD8 + T cells. Our findings highlight the importance of targeting USP8, which can sensitize PD-L1-targeted pancreatic cancer to immunotherapy and might represent a novel therapeutic strategy to treat patients with pancreatic tumors in the future.
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Affiliation(s)
- Hanshen Yang
- Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Innovation Center for the Study of Pancreatic Diseases, Hangzhou, Zhejiang, China
- Zhejiang Clinical Research Center of Hepatobiliary and Pancreatic Disease, Hangzhou, Zhejiang, China
- Zhejiang University Cancer Center, Hangzhou, Zhejiang, China
- Research Center for Healthcare Data Science, Zhejiang Lab, Hangzhou, Zhejiang, China
| | - Xiaozhen Zhang
- Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Innovation Center for the Study of Pancreatic Diseases, Hangzhou, Zhejiang, China
- Zhejiang Clinical Research Center of Hepatobiliary and Pancreatic Disease, Hangzhou, Zhejiang, China
- Zhejiang University Cancer Center, Hangzhou, Zhejiang, China
- Research Center for Healthcare Data Science, Zhejiang Lab, Hangzhou, Zhejiang, China
| | - Mengyi Lao
- Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Innovation Center for the Study of Pancreatic Diseases, Hangzhou, Zhejiang, China
- Zhejiang Clinical Research Center of Hepatobiliary and Pancreatic Disease, Hangzhou, Zhejiang, China
- Zhejiang University Cancer Center, Hangzhou, Zhejiang, China
- Research Center for Healthcare Data Science, Zhejiang Lab, Hangzhou, Zhejiang, China
| | - Kang Sun
- Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Innovation Center for the Study of Pancreatic Diseases, Hangzhou, Zhejiang, China
- Zhejiang Clinical Research Center of Hepatobiliary and Pancreatic Disease, Hangzhou, Zhejiang, China
- Zhejiang University Cancer Center, Hangzhou, Zhejiang, China
- Research Center for Healthcare Data Science, Zhejiang Lab, Hangzhou, Zhejiang, China
| | - Lihong He
- Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Innovation Center for the Study of Pancreatic Diseases, Hangzhou, Zhejiang, China
- Zhejiang Clinical Research Center of Hepatobiliary and Pancreatic Disease, Hangzhou, Zhejiang, China
- Zhejiang University Cancer Center, Hangzhou, Zhejiang, China
- Research Center for Healthcare Data Science, Zhejiang Lab, Hangzhou, Zhejiang, China
| | - Jian Xu
- Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Innovation Center for the Study of Pancreatic Diseases, Hangzhou, Zhejiang, China
- Zhejiang Clinical Research Center of Hepatobiliary and Pancreatic Disease, Hangzhou, Zhejiang, China
- Zhejiang University Cancer Center, Hangzhou, Zhejiang, China
- Research Center for Healthcare Data Science, Zhejiang Lab, Hangzhou, Zhejiang, China
| | - Yi Duan
- Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Innovation Center for the Study of Pancreatic Diseases, Hangzhou, Zhejiang, China
- Zhejiang Clinical Research Center of Hepatobiliary and Pancreatic Disease, Hangzhou, Zhejiang, China
- Zhejiang University Cancer Center, Hangzhou, Zhejiang, China
- Research Center for Healthcare Data Science, Zhejiang Lab, Hangzhou, Zhejiang, China
| | - Yan Chen
- Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Innovation Center for the Study of Pancreatic Diseases, Hangzhou, Zhejiang, China
- Zhejiang Clinical Research Center of Hepatobiliary and Pancreatic Disease, Hangzhou, Zhejiang, China
- Zhejiang University Cancer Center, Hangzhou, Zhejiang, China
- Research Center for Healthcare Data Science, Zhejiang Lab, Hangzhou, Zhejiang, China
| | - Honggang Ying
- Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Innovation Center for the Study of Pancreatic Diseases, Hangzhou, Zhejiang, China
- Zhejiang Clinical Research Center of Hepatobiliary and Pancreatic Disease, Hangzhou, Zhejiang, China
- Zhejiang University Cancer Center, Hangzhou, Zhejiang, China
- Research Center for Healthcare Data Science, Zhejiang Lab, Hangzhou, Zhejiang, China
| | - Muchun Li
- Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Innovation Center for the Study of Pancreatic Diseases, Hangzhou, Zhejiang, China
- Zhejiang Clinical Research Center of Hepatobiliary and Pancreatic Disease, Hangzhou, Zhejiang, China
- Zhejiang University Cancer Center, Hangzhou, Zhejiang, China
- Research Center for Healthcare Data Science, Zhejiang Lab, Hangzhou, Zhejiang, China
| | - Chengxiang Guo
- Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Innovation Center for the Study of Pancreatic Diseases, Hangzhou, Zhejiang, China
- Zhejiang Clinical Research Center of Hepatobiliary and Pancreatic Disease, Hangzhou, Zhejiang, China
- Zhejiang University Cancer Center, Hangzhou, Zhejiang, China
- Research Center for Healthcare Data Science, Zhejiang Lab, Hangzhou, Zhejiang, China
| | - Qingsong Lu
- Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Innovation Center for the Study of Pancreatic Diseases, Hangzhou, Zhejiang, China
- Zhejiang Clinical Research Center of Hepatobiliary and Pancreatic Disease, Hangzhou, Zhejiang, China
- Zhejiang University Cancer Center, Hangzhou, Zhejiang, China
- Research Center for Healthcare Data Science, Zhejiang Lab, Hangzhou, Zhejiang, China
| | - Sicheng Wang
- Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Innovation Center for the Study of Pancreatic Diseases, Hangzhou, Zhejiang, China
- Zhejiang Clinical Research Center of Hepatobiliary and Pancreatic Disease, Hangzhou, Zhejiang, China
- Zhejiang University Cancer Center, Hangzhou, Zhejiang, China
- Research Center for Healthcare Data Science, Zhejiang Lab, Hangzhou, Zhejiang, China
| | - Wei Su
- Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Innovation Center for the Study of Pancreatic Diseases, Hangzhou, Zhejiang, China
- Zhejiang Clinical Research Center of Hepatobiliary and Pancreatic Disease, Hangzhou, Zhejiang, China
- Zhejiang University Cancer Center, Hangzhou, Zhejiang, China
- Research Center for Healthcare Data Science, Zhejiang Lab, Hangzhou, Zhejiang, China
| | - Tingbo Liang
- Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.
- Innovation Center for the Study of Pancreatic Diseases, Hangzhou, Zhejiang, China.
- Zhejiang Clinical Research Center of Hepatobiliary and Pancreatic Disease, Hangzhou, Zhejiang, China.
- Zhejiang University Cancer Center, Hangzhou, Zhejiang, China.
- Research Center for Healthcare Data Science, Zhejiang Lab, Hangzhou, Zhejiang, China.
| | - Xueli Bai
- Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.
- Innovation Center for the Study of Pancreatic Diseases, Hangzhou, Zhejiang, China.
- Zhejiang Clinical Research Center of Hepatobiliary and Pancreatic Disease, Hangzhou, Zhejiang, China.
- Zhejiang University Cancer Center, Hangzhou, Zhejiang, China.
- Research Center for Healthcare Data Science, Zhejiang Lab, Hangzhou, Zhejiang, China.
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16
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Tu X, Li C, Sun W, Tian X, Li Q, Wang S, Ding X, Huang Z. Suppression of Cancer Cell Stemness and Drug Resistance via MYC Destabilization by Deubiquitinase USP45 Inhibition with a Natural Small Molecule. Cancers (Basel) 2023; 15:cancers15030930. [PMID: 36765885 PMCID: PMC9913288 DOI: 10.3390/cancers15030930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/23/2023] [Accepted: 01/29/2023] [Indexed: 02/05/2023] Open
Abstract
Cancer stem cells (CSCs) play significant roles in cancer development, drug resistance and cancer recurrence. In cancer treatments based on the CSC characteristics and inducing factors, MYC is a promising target for therapeutic molecules. Although it has been regarded as an undrugable target, its stability tightly regulated by the ubiquitin-proteasome system offers a new direction for molecule targeting and cancer treatment. Herein we report our discoveries in this research area, and we have found that deubiquitinase USP45 can directly bind with MYC, resulting in its deubiquitination and stabilization. Further, USP45 overexpressing can upregulate MYC, and this overexpressing can significantly enhance cancer development, cancer cell stemness and drug resistance. Interestingly, without enhancing cancer development, MYC silencing with shRNA can only suppress USP45-induced stemness and drug resistance. Moreover, we have identified that USP45 can be specifically bound and inhibited by a natural small molecule (α-mangostin), in turn significantly suppressing USP45-induced stemness and drug resistance. Since USP45 is significantly expressed in cervical tumors, we have discovered that the combination of α-mangostin and doxorubicin can significantly inhibit USP45-induced cervical tumorigenesis in an animal model. In general, on the basis of our USP45 discoveries on its MYC deubiquitination and α-mangostin inhibition, suppressing USP45 has opened a new window for suppressing cancer development, stemness and drug resistance.
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Affiliation(s)
- Xiao Tu
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Science, Sichuan University, Chengdu 610000, China
| | - Chuncheng Li
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Science, Sichuan University, Chengdu 610000, China
| | - Wen Sun
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Science, Sichuan University, Chengdu 610000, China
| | - Xi Tian
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Science, Sichuan University, Chengdu 610000, China
| | - Qiufu Li
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Science, Sichuan University, Chengdu 610000, China
| | - Shaoxin Wang
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Science, Sichuan University, Chengdu 610000, China
| | - Xiaoling Ding
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Science, Sichuan University, Chengdu 610000, China
| | - Zhen Huang
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Science, Sichuan University, Chengdu 610000, China
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 610000, China
- SeNA Research Institute and Szostak-CDHT Large Nucleic Acids Institute, Chengdu 610000, China
- Correspondence: ; Fax: +86-028-8550-2629
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17
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Zhang X, Zeng J, Wang J, Yang Z, Gao S, Liu H, Li G, Zhang X, Gu Y, Pang D. Revealing the Potential Markers of N(4)-Acetylcytidine through acRIP-seq in Triple-Negative Breast Cancer. Genes (Basel) 2022; 13:genes13122400. [PMID: 36553667 PMCID: PMC9777589 DOI: 10.3390/genes13122400] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 12/09/2022] [Accepted: 12/13/2022] [Indexed: 12/24/2022] Open
Abstract
Understanding the causes of tumorigenesis and progression in triple-receptor negative breast cancer (TNBC) can help the design of novel and personalized therapies and prognostic assessments. Abnormal RNA modification is a recently discovered process in TNBC development. TNBC samples from The Cancer Genome Atlas database were categorized according to the expression level of NAT10, which drives acetylation of cytidine in RNA to N(4)-acetylcytidine (ac4C) and affects mRNA stability. A total of 703 differentially expressed long non-coding RNAs (lncRNAs) were found between high- and low-expressed NAT10 groups in TNBC. Twenty of these lncRNAs were significantly associated with prognosis. Two breast cancer tissues and their paired normal tissues were sequenced at the whole genome level using acetylated RNA immunoprecipitation sequencing (acRIP-seq) technology to identify acetylation features in TNBC, and 180 genes were significantly differentially ac4c acetylated in patients. We also analyzed the genome-wide lncRNA expression profile and constructed a co-expression network, containing 116 ac4C genes and 1080 lncRNAs. Three of these lncRNAs were prognostic risk lncRNAs affected by NAT10 and contained in the network. The corresponding reciprocal pairs were "LINC01614-COL3A1", "OIP5-AS1-USP8", and "RP5-908M14.9-TRIR". These results indicate that RNA ac4c acetylation involves lncRNAs and affects the tumor process and prognosis of TNBC. This will aid the prediction of drug targets and drug sensitivity.
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Affiliation(s)
- Xingda Zhang
- Department of Breast Surgery, Harbin Medical University Cancer Hospital,150 Haping Road, Harbin 150081, China
| | - Jiaqi Zeng
- School of Life Science and Technology, Computational Biology Research Center, Harbin Institute of Technology, Harbin 150001, China
| | - Jianyu Wang
- Department of Breast Surgery, Harbin Medical University Cancer Hospital,150 Haping Road, Harbin 150081, China
| | - Zihan Yang
- Department of Breast Surgery, Harbin Medical University Cancer Hospital,150 Haping Road, Harbin 150081, China
| | - Song Gao
- Department of Breast Surgery, Harbin Medical University Cancer Hospital,150 Haping Road, Harbin 150081, China
| | - Honghao Liu
- School of Life Science and Technology, Computational Biology Research Center, Harbin Institute of Technology, Harbin 150001, China
| | - Guozheng Li
- Department of Breast Surgery, Harbin Medical University Cancer Hospital,150 Haping Road, Harbin 150081, China
| | - Xin Zhang
- Department of Breast Surgery, Harbin Medical University Cancer Hospital,150 Haping Road, Harbin 150081, China
| | - Yue Gu
- School of Life Science and Technology, Computational Biology Research Center, Harbin Institute of Technology, Harbin 150001, China
- Correspondence: (Y.G.); (D.P.)
| | - Da Pang
- Department of Breast Surgery, Harbin Medical University Cancer Hospital,150 Haping Road, Harbin 150081, China
- Correspondence: (Y.G.); (D.P.)
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18
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Islam MT, Chen FZ, Chen HC, Wahid A. Knockdown of USP8 inhibits prostate cancer cell growth, proliferation, and metastasis and promotes docetaxel’s activity by suppressing the NF-kB signaling pathway. Front Oncol 2022; 12:923270. [PMID: 36338727 PMCID: PMC9632420 DOI: 10.3389/fonc.2022.923270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 09/26/2022] [Indexed: 11/13/2022] Open
Abstract
Ubiquitin-specific protease 8 (USP8) has been recently reported to be involved in tumorigenesis. Prostate cancer (PCa) is the most diagnosed malignancy among men, but USP8’s role in PCa is not yet investigated comprehensively. Therefore, the PCa cell lines DU145 and PC3 were transfected with USP8 siRNA or overexpressing vector together with or without docetaxel. The silencing USP8 and docetaxel treatment reduced cell viability and migration and promoted apoptosis. In contrast, USP8 knockdown was found to enhance docetaxel antitumor activity. In contrast, increased cell viability and migration were noticed upon USP8 overexpression, thereby decreasing apoptosis and suppressing docetaxel antitumor activity. Notably, although EGFR, PI3K, and NF-kB were found to be increased in both USP8 overexpression and docetaxel treatment, it significantly attenuated the effects in USP8 silencing followed by with or without docetaxel. Although EGFR silencing decreased PI3K and NF-kB activation, overexpression of USP8 was shown to counteract SiEGFR’s effects on NF-kB signaling by increasing PI3K expression. Our findings revealed that USP8 plays an oncogenic role in PCa and can suppress docetaxel activity. Additionally, as EGFR/PI3K/NF-kB was previously reported to develop docetaxel resistance, the combination treatment of USP8 knockdown with docetaxel might be a potential PCa therapeutic.
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Affiliation(s)
- Md. Tariqul Islam
- Department of Biochemistry and Molecular Biology, School of Life Sciences, Central South University, Changsha, China
| | - Fang-Zhi Chen
- Department of Urology, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Han-Chun Chen
- Department of Biochemistry and Molecular Biology, School of Life Sciences, Central South University, Changsha, China
- *Correspondence: Han-Chun Chen,
| | - Abdul Wahid
- Department of Cardiology of the Third Xiangya Hospital, Central South University, Changsha, Hunan, China
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Wu Y, Chang J, Ge J, Xu K, Zhou Q, Zhang X, Zhu N, Hu M. Isobavachalcone's Alleviation of Pyroptosis Contributes to Enhanced Apoptosis in Glioblastoma: Possible Involvement of NLRP3. Mol Neurobiol 2022; 59:6934-6955. [PMID: 36053436 DOI: 10.1007/s12035-022-03010-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 08/18/2022] [Indexed: 10/14/2022]
Abstract
Glioblastoma multiforme (GBM) is the most malignant intracranial tumor with high mortality rates and invariably poor prognosis due to its limited clinical treatments. There is an urgent need to develop new therapeutic drugs for GBM treatment. As a natural prenylated chalcone compound, Isobavachalcone (IBC)'s favorable pharmacological activities have been widely revealed. However, potential inhibitory effects of IBC on GBM have not been explored. In the present study, we aimed to detect the effects of IBC on GBM and clarify its anti-GBM mechanisms for the first time. It was observed that IBC could inhibit GBM cell proliferation, migration, and invasion in vitro and prevent tumor growth without any significant drug toxicity in both subcutaneous and orthotopic GBM xenograft tumor models in vivo. Mechanistically, IBC may target NOD-like receptor family pyrin domain-containing 3 (NLRP3) transcription factor estrogen receptor α (ESR1 gene) by network pharmacology and molecular docking analysis. Experimentally, IBC alleviated NLRP3 inflammasome-related pyroptosis and inflammation, arrested cell cycle at G1 phase, and induced mitochondria-dependent apoptosis in GBM cells. IBC's inhibition on NLRP3 could be rescued by the NLRP3 antagonist CY-09 both in vitro and in vivo. These results indicate that IBC is a potential therapeutic drug against GBM and provide a new insight into GBM treatment.
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Affiliation(s)
- Yueshan Wu
- Research Center of Basic Medical Sciences, School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, 88 Xianning Avenue, Xianning, 437100, Hubei, People's Republic of China
| | - Jing Chang
- Research Center of Basic Medical Sciences, School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, 88 Xianning Avenue, Xianning, 437100, Hubei, People's Republic of China
| | - Juanjuan Ge
- Research Center of Basic Medical Sciences, School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, 88 Xianning Avenue, Xianning, 437100, Hubei, People's Republic of China
| | - Kangyan Xu
- Research Center of Basic Medical Sciences, School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, 88 Xianning Avenue, Xianning, 437100, Hubei, People's Republic of China
| | - Quan Zhou
- Research Center of Basic Medical Sciences, School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, 88 Xianning Avenue, Xianning, 437100, Hubei, People's Republic of China
| | - Xiaowen Zhang
- Research Center of Basic Medical Sciences, School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, 88 Xianning Avenue, Xianning, 437100, Hubei, People's Republic of China
| | - Ni Zhu
- Research Center of Basic Medical Sciences, School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, 88 Xianning Avenue, Xianning, 437100, Hubei, People's Republic of China.
| | - Meichun Hu
- Research Center of Basic Medical Sciences, School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, 88 Xianning Avenue, Xianning, 437100, Hubei, People's Republic of China.
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20
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Tian Y, Liu K, Liu R, Qiu Z, Xu Y, Wei W, Xu X, Wang J, Ding H, Li Z, Bian J. Discovery of Potent Small-Molecule USP8 Inhibitors for the Treatment of Breast Cancer through Regulating ERα Expression. J Med Chem 2022; 65:8914-8932. [PMID: 35786929 DOI: 10.1021/acs.jmedchem.2c00013] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ubiquitin-specific protease 8 (USP8), belonging to the deubiquitinase family, has been implicated to be closely related to the occurrence of many malignant tumors, but only a few USP8-targeting inhibitors have been reported to date. In this study, we present virtual screening to discover novel hit candidates that inhibit the catalytic activity of USP8. Exploration of the structure-activity relationship led to the identification of compound DC-U4106, which binds to USP8 with a KD value of 4.7 μM and is selective over USP2 and USP7. Western blotting and immunoprecipitation showed that DC-U4106 could target the ubiquitin pathway and facilitate the degradation of ERα. In a xenograft tumor model, DC-U4106 also significantly inhibited tumor growth with minimal toxicity. Overall, our findings suggest that DC-U4106 is a promising drug candidate and targeting the USP8-ERα complex could be a new approach to treat ER-positive or drug-resistant breast cancer.
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Affiliation(s)
- Yucheng Tian
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing210009, China
| | - Kang Liu
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing210009, China
| | - Ruoyi Liu
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing210009, China
| | - Zhixia Qiu
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing210009, China
| | - Yifan Xu
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing210009, China
| | - Wei Wei
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing210009, China
| | - Xi Xu
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing210009, China
| | - Jubo Wang
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing210009, China
| | - Hong Ding
- State Key Laboratory of Drug Research, Shanghai Institute of Material Medical, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai201203, China
| | - Zhiyu Li
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing210009, China
| | - Jinlei Bian
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing210009, China
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21
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Yang C, Pan J, Luo X, Li J, Jiang Z. Hypoxia-induced mesenchymal stem cells inhibit corneal fibroblast proliferation by regulating the WWP2/Notch1 axis. Regen Med 2022; 17:375-388. [PMID: 35545948 DOI: 10.2217/rme-2021-0173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: This study aimed to explore the role of hypoxic mesenchymal stem cells (MSCs) in corneal alkali burns and the underlying mechanism. Materials & methods: Rat corneal fibroblasts were incubated with IL-6, followed by treatment with hypoxic MSC supernatant. A rat corneal alkali burn model was implemented and processed with hypoxic MSCs. The associated factors were detected by corresponding methods. Results: Hypoxic MSCs reduced the Notch1 level and the proliferation of rat corneal fibroblasts. Hypoxic MSCs or WWP2 overexpression in MSCs enhanced ubiquitination of Notch1. WWP2 interacted with Notch1, and WWP2 silencing reversed the effects of the hypoxic MSCs. Hypoxic MSC treatment in vivo decreased the corneal neovascularization scores and opacity scores. Conclusion: Hypoxic MSCs inhibited inflammation and alleviated corneal injury in alkali burns via the WWP2/Notch1 axis.
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Affiliation(s)
- Chongmeng Yang
- Department of Ophthalmology, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Ouhai District, Wenzhou, Zhejiang, 325000, China
| | - Jian Pan
- Department of Ophthalmology, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Ouhai District, Wenzhou, Zhejiang, 325000, China
| | - Xu Luo
- Burn & Wound Healing Centre, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China.,Wound Repair Department, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou, Zhejiang, 324000, China
| | - Jianmin Li
- Department of Pathology, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Ouhai District, Wenzhou, Zhejiang, 325000, China
| | - Zipei Jiang
- Department of Ophthalmology, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Ouhai District, Wenzhou, Zhejiang, 325000, China
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22
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Li L, Liu Y, Zhao Y, Feng R, Li Y, Yu X, Liu Z, Wang L. Deubiquitinase USP8 increases ID1 stability and promotes esophageal squamous cell carcinoma tumorigenesis. Cancer Lett 2022; 542:215760. [DOI: 10.1016/j.canlet.2022.215760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 05/23/2022] [Accepted: 05/23/2022] [Indexed: 11/02/2022]
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23
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USP8 inhibition reshapes an inflamed tumor microenvironment that potentiates the immunotherapy. Nat Commun 2022; 13:1700. [PMID: 35361799 PMCID: PMC8971425 DOI: 10.1038/s41467-022-29401-6] [Citation(s) in RCA: 48] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 03/15/2022] [Indexed: 01/20/2023] Open
Abstract
Anti-PD-1/PD-L1 immunotherapy has achieved impressive therapeutic outcomes in patients with multiple cancer types. However, the underlined molecular mechanism(s) for moderate response rate (15–25%) or resistance to PD-1/PD-L1 blockade remains not completely understood. Here, we report that inhibiting the deubiquitinase, USP8, significantly enhances the efficacy of anti-PD-1/PD-L1 immunotherapy through reshaping an inflamed tumor microenvironment (TME). Mechanistically, USP8 inhibition increases PD-L1 protein abundance through elevating the TRAF6-mediated K63-linked ubiquitination of PD-L1 to antagonize K48-linked ubiquitination and degradation of PD-L1. In addition, USP8 inhibition also triggers innate immune response and MHC-I expression largely through activating the NF-κB signaling. Based on these mechanisms, USP8 inhibitor combination with PD-1/PD-L1 blockade significantly activates the infiltrated CD8+ T cells to suppress tumor growth and improves the survival benefit in several murine tumor models. Thus, our study reveals a potential combined therapeutic strategy to utilize a USP8 inhibitor and PD-1/PD-L1 blockade for enhancing anti-tumor efficacy. The regulatory mechanisms of PD-L1 posttranslational modifications are not completely understood. Here the authors show that USP8 negatively regulates PD-L1 protein abundance by removing the K63-linked ubiquitination of PD-L1; while USP8 inhibition increases MHC-I expression and triggers anti-tumour immune responses through activating NF-κB signalling.
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Zhao Y, Peng D, Liu Y, Zhang Q, Liu B, Deng Y, Ding W, Zhou Z, Liu Q. Usp8 promotes tumor cell migration through activating the JNK pathway. Cell Death Dis 2022; 13:286. [PMID: 35361778 PMCID: PMC8971431 DOI: 10.1038/s41419-022-04749-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 03/07/2022] [Accepted: 03/18/2022] [Indexed: 11/23/2022]
Abstract
Tumor metastasis is the most cause of high mortality for cancer patients. Identification of novel factors that modulate tumor cell migration is of great significance for therapeutic strategies. Here, we find that the ubiquitin-specific protease 8 (Usp8) promotes tumor cell migration through activating the c-Jun N-terminal kinase (JNK) pathway. Genetic epistasis analyses uncover Usp8 acts upstream of Tak1 to control the JNK pathway. Consistently, biochemical results reveal that Usp8 binds Tak1 to remove ubiquitin modification from Tak1, leading to its stabilization. In addition, human USP8 also triggers tumor cell migration and activates the JNK pathway. Finally, we show that knockdown of USP8 in human breast cancer cells suppresses cell migration. Taken together, our findings demonstrate that a conserved Usp8-Tak1-JNK axis promotes tumor cell migration, and providing USP8 as a potential therapeutic target for cancer treatment.
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25
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Prouteau A, Mottier S, Primot A, Cadieu E, Bachelot L, Botherel N, Cabillic F, Houel A, Cornevin L, Kergal C, Corre S, Abadie J, Hitte C, Gilot D, Lindblad-Toh K, André C, Derrien T, Hedan B. Canine Oral Melanoma Genomic and Transcriptomic Study Defines Two Molecular Subgroups with Different Therapeutical Targets. Cancers (Basel) 2022; 14:cancers14020276. [PMID: 35053440 PMCID: PMC8774001 DOI: 10.3390/cancers14020276] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 12/23/2021] [Accepted: 12/27/2021] [Indexed: 02/05/2023] Open
Abstract
Simple Summary In humans, mucosal melanoma (MM) is a rare and aggressive cancer. The canine model is frequently and spontaneously affected by MM, thus facilitating the collection of samples and the study of its genetic bases. Thanks to an integrative genomic and transcriptomic analysis of 32 canine MM samples, we identified two molecular subgroups of MM with a different microenvironment and structural variant (SV) content. We demonstrated that SVs are associated with recurrently amplified regions, and identified new candidate oncogenes (TRPM7, GABPB1, and SPPL2A) for MM. Our findings suggest the existence of two MM molecular subgroups that could benefit from dedicated therapies, such as immune checkpoint inhibitors or targeted therapies, for both human and veterinary medicine. Abstract Mucosal melanoma (MM) is a rare, aggressive clinical cancer. Despite recent advances in genetics and treatment, the prognosis of MM remains poor. Canine MM offers a relevant spontaneous and immunocompetent model to decipher the genetic bases and explore treatments for MM. We performed an integrative genomic and transcriptomic analysis of 32 canine MM samples, which identified two molecular subgroups with a different microenvironment and structural variant (SV) content. The overexpression of genes related to the microenvironment and T-cell response was associated with tumors harboring a lower content of SVs, whereas the overexpression of pigmentation-related pathways and oncogenes, such as TERT, was associated with a high SV burden. Using whole-genome sequencing, we showed that focal amplifications characterized complex chromosomal rearrangements targeting oncogenes, such as MDM2 or CDK4, and a recurrently amplified region on canine chromosome 30. We also demonstrated that the genes TRPM7, GABPB1, and SPPL2A, located in this CFA30 region, play a role in cell proliferation, and thus, may be considered as new candidate oncogenes for human MM. Our findings suggest the existence of two MM molecular subgroups that may benefit from dedicated therapies, such as immune checkpoint inhibitors or targeted therapies, for both human and veterinary medicine.
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Affiliation(s)
- Anais Prouteau
- IGDR—UMR 6290, CNRS, University of Rennes 1, 35000 Rennes, France; (A.P.); (S.M.); (A.P.); (E.C.); (L.B.); (N.B.); (A.H.); (C.K.); (S.C.); (C.H.); (D.G.); (C.A.)
| | - Stephanie Mottier
- IGDR—UMR 6290, CNRS, University of Rennes 1, 35000 Rennes, France; (A.P.); (S.M.); (A.P.); (E.C.); (L.B.); (N.B.); (A.H.); (C.K.); (S.C.); (C.H.); (D.G.); (C.A.)
| | - Aline Primot
- IGDR—UMR 6290, CNRS, University of Rennes 1, 35000 Rennes, France; (A.P.); (S.M.); (A.P.); (E.C.); (L.B.); (N.B.); (A.H.); (C.K.); (S.C.); (C.H.); (D.G.); (C.A.)
| | - Edouard Cadieu
- IGDR—UMR 6290, CNRS, University of Rennes 1, 35000 Rennes, France; (A.P.); (S.M.); (A.P.); (E.C.); (L.B.); (N.B.); (A.H.); (C.K.); (S.C.); (C.H.); (D.G.); (C.A.)
| | - Laura Bachelot
- IGDR—UMR 6290, CNRS, University of Rennes 1, 35000 Rennes, France; (A.P.); (S.M.); (A.P.); (E.C.); (L.B.); (N.B.); (A.H.); (C.K.); (S.C.); (C.H.); (D.G.); (C.A.)
| | - Nadine Botherel
- IGDR—UMR 6290, CNRS, University of Rennes 1, 35000 Rennes, France; (A.P.); (S.M.); (A.P.); (E.C.); (L.B.); (N.B.); (A.H.); (C.K.); (S.C.); (C.H.); (D.G.); (C.A.)
| | - Florian Cabillic
- Laboratoire de Cytogénétique et Biologie Cellulaire, CHU de Rennes, INSERM, INRA, University of Rennes 1, Nutrition Metabolisms and Cancer, 35000 Rennes, France; (F.C.); (L.C.)
| | - Armel Houel
- IGDR—UMR 6290, CNRS, University of Rennes 1, 35000 Rennes, France; (A.P.); (S.M.); (A.P.); (E.C.); (L.B.); (N.B.); (A.H.); (C.K.); (S.C.); (C.H.); (D.G.); (C.A.)
| | - Laurence Cornevin
- Laboratoire de Cytogénétique et Biologie Cellulaire, CHU de Rennes, INSERM, INRA, University of Rennes 1, Nutrition Metabolisms and Cancer, 35000 Rennes, France; (F.C.); (L.C.)
| | - Camille Kergal
- IGDR—UMR 6290, CNRS, University of Rennes 1, 35000 Rennes, France; (A.P.); (S.M.); (A.P.); (E.C.); (L.B.); (N.B.); (A.H.); (C.K.); (S.C.); (C.H.); (D.G.); (C.A.)
| | - Sébastien Corre
- IGDR—UMR 6290, CNRS, University of Rennes 1, 35000 Rennes, France; (A.P.); (S.M.); (A.P.); (E.C.); (L.B.); (N.B.); (A.H.); (C.K.); (S.C.); (C.H.); (D.G.); (C.A.)
| | - Jérôme Abadie
- Laboniris, Department of Biology, Pathology and Food Sciences, Oniris, 44300 Nantes, France;
| | - Christophe Hitte
- IGDR—UMR 6290, CNRS, University of Rennes 1, 35000 Rennes, France; (A.P.); (S.M.); (A.P.); (E.C.); (L.B.); (N.B.); (A.H.); (C.K.); (S.C.); (C.H.); (D.G.); (C.A.)
| | - David Gilot
- IGDR—UMR 6290, CNRS, University of Rennes 1, 35000 Rennes, France; (A.P.); (S.M.); (A.P.); (E.C.); (L.B.); (N.B.); (A.H.); (C.K.); (S.C.); (C.H.); (D.G.); (C.A.)
| | - Kerstin Lindblad-Toh
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA;
- Science for Life Laboratory, Department of Medical Biochemistry and Microbiology, Uppsala University, SE-751 24 Uppsala, Sweden
| | - Catherine André
- IGDR—UMR 6290, CNRS, University of Rennes 1, 35000 Rennes, France; (A.P.); (S.M.); (A.P.); (E.C.); (L.B.); (N.B.); (A.H.); (C.K.); (S.C.); (C.H.); (D.G.); (C.A.)
| | - Thomas Derrien
- IGDR—UMR 6290, CNRS, University of Rennes 1, 35000 Rennes, France; (A.P.); (S.M.); (A.P.); (E.C.); (L.B.); (N.B.); (A.H.); (C.K.); (S.C.); (C.H.); (D.G.); (C.A.)
- Correspondence: (T.D.); (B.H.); Tel.: +33-2-23-23-43-19 (B.H.)
| | - Benoit Hedan
- IGDR—UMR 6290, CNRS, University of Rennes 1, 35000 Rennes, France; (A.P.); (S.M.); (A.P.); (E.C.); (L.B.); (N.B.); (A.H.); (C.K.); (S.C.); (C.H.); (D.G.); (C.A.)
- Correspondence: (T.D.); (B.H.); Tel.: +33-2-23-23-43-19 (B.H.)
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Moldovan GE, Miele L, Fazleabas AT. Notch signaling in reproduction. Trends Endocrinol Metab 2021; 32:1044-1057. [PMID: 34479767 PMCID: PMC8585702 DOI: 10.1016/j.tem.2021.08.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 07/27/2021] [Accepted: 08/06/2021] [Indexed: 12/22/2022]
Abstract
The Notch signaling pathway is conserved among mammalian species and controls proliferation, differentiation, and cell death in many organs throughout the body including the reproductive tract. Notch signaling plays critical roles in the development and function of both the male and female reproductive systems. Specifically, within the female reproductive tract, Notch signaling is hormone regulated and mediates key reproductive events important for ovarian and uterine function. In this review, we highlight the tissues that express Notch receptors, ligands, and downstream effectors and distinguish how these molecules regulate reproductive function in male and female mice, non-human primates, and humans. Finally, we describe some of the aberrations in Notch signaling in female reproductive pathologies and identify opportunities for future investigation.
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Affiliation(s)
- Genna E Moldovan
- Department of Obstetrics, Gynecology, and Reproductive Biology, Michigan State University, Grand Rapids, MI 49503, USA
| | - Lucio Miele
- Department of Genetics, Louisiana State University Health Sciences Center and Stanley S. Scott Cancer Center, New Orleans, LA 70112, USA
| | - Asgerally T Fazleabas
- Department of Obstetrics, Gynecology, and Reproductive Biology, Michigan State University, Grand Rapids, MI 49503, USA.
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Ubiquitin-Specific Protease 29 Exacerbates Cerebral Ischemia-Reperfusion Injury in Mice. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:6955628. [PMID: 34824671 PMCID: PMC8610700 DOI: 10.1155/2021/6955628] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 10/02/2021] [Accepted: 10/18/2021] [Indexed: 11/17/2022]
Abstract
Oxidative stress and apoptosis contribute to the progression of cerebral ischemia/reperfusion (I/R) injury. Ubiquitin-specific protease 29 (USP29) is abundantly expressed in the brain and plays critical roles in regulating oxidative stress and cell apoptosis. The purpose of the present study is to investigate the role and underlying mechanisms of USP29 in cerebral I/R injury. Neuron-specific USP29 knockout mice were generated and subjected to cerebral I/R surgery. For USP29 overexpression, mice were stereotactically injected with the adenoassociated virus serotype 9 vectors carrying USP29 for 4 weeks before cerebral I/R. And primary cortical neurons were isolated and exposed to oxygen glucose deprivation/reperfusion (OGD/R) stimulation to imitate cerebral I/R injury in vitro. USP29 expression was elevated in the brain and primary cortical neurons upon I/R injury. Neuron-specific USP29 knockout significantly diminished, whereas USP29 overexpression aggravated cerebral I/R-induced oxidative stress, apoptosis, and neurological dysfunction in mice. In addition, OGD/R-induced oxidative stress and neuronal apoptosis were also attenuated by USP29 silence but exacerbated by USP29 overexpression in vitro. Mechanistically, neuronal USP29 enhanced p53/miR-34a-mediated silent information regulator 1 downregulation and then promoted the acetylation and suppression of brain and muscle ARNT-like protein, thereby aggravating oxidative stress and apoptosis upon cerebral I/R injury. Our findings for the first time identify that USP29 upregulation during cerebral I/R may contribute to oxidative stress, neuronal apoptosis, and the progression of cerebral I/R injury and that inhibition of USP29 may help to develop novel therapeutic strategies to treat cerebral I/R injury.
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Huang M, Xiao J, Yan C, Wang T, Ling R. USP41 promotes breast cancer via regulating RACK1. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:1566. [PMID: 34790772 PMCID: PMC8576695 DOI: 10.21037/atm-21-4921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 10/19/2021] [Indexed: 11/10/2022]
Abstract
Background Breast cancer (BC) is the most common cancer diagnosed among women and is the second leading cause of cancer death. It is of great significance to explore potential candidate targets for BC. Methods The expression of ubiquitin-specific protease 41 (USP41) and its prognosis prediction function was firstly evaluated by TCGA database analysis. Using BC cell lines and specimens from 10 patients with primary BC, the upregulation of USP41 in BC was ensured. By USP41 overexpression or knockdown, its function was studied by cell function assays, small interfering RNA (siRNA), western blot, mass spectrometry, and flow cytometry. The potential mechanism of USP41 was explored via Co-Immunoprecipitation mass spectrometry, and western blot. Results TCGA database analysis revealed that in metastatic BC, USP41 expression was upregulated and negatively correlated with BC prognosis. In BC cancer cells and cancer specimens, USP41 was also upregulated. Overexpression of USP41 greatly enhanced BC colony-forming ability, proliferation, and migration. In contrast, USP41 knockdown significantly inhibited BC colony-forming ability, proliferation, and migration. Moreover, Co-Immunoprecipitation mass spectrometry results indicated that USP41 could interact with RACK1. USP41 promoted the protein expression of RACK1. The expression of RACK1 in BC tissues was upregulated. Knockdown of RACK1 inhibited cell growth and migration, and reversed the oncogenic function of USP41 in BC cells. Conclusions USP41 can be a potential therapeutic target against BC via RACK1.
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Affiliation(s)
- Meiling Huang
- Department of Thyroid, Breast, and Vascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Jingjing Xiao
- Department of Thyroid, Breast, and Vascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Changjiao Yan
- Department of Thyroid, Breast, and Vascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Ting Wang
- Department of Thyroid, Breast, and Vascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Rui Ling
- Department of Thyroid, Breast, and Vascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
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Li Y, Zhou J. USP5 Promotes Uterine Corpus Endometrial Carcinoma Cell Growth and Migration via mTOR/4EBP1 Activation. Cancer Manag Res 2021; 13:3913-3924. [PMID: 34012297 PMCID: PMC8128349 DOI: 10.2147/cmar.s290467] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 04/15/2021] [Indexed: 12/30/2022] Open
Abstract
Background Uterine corpus endometrial carcinoma (UCEC) is a common malignancy worldwide developed in the female reproductive system, which can be life-threatening due to metastasis and poor prognosis. Deubiquitinating enzymes (DUBs) play key roles in ubiquitin–proteasome system. As a member of DUBs, the ubiquitin-specific protease 5 (USP5) has been found to be an oncogene in several cancers. This study aims to explore the function of USP5 in UCEC. Materials and Methods Clinical significance of USP5 was assessed from The Cancer Genome Atlas (TCGA) UCEC dataset. Knockdown and overexpression were performed by transfecting the cells with siRNAs and pCDNA3.1 vectors, respectively. CCK8, colony formation, wound healing, transwell, PI, and PI/annexin V staining were conducted to check the effect of USP5 on cellular biology function. Western blot assay was used to detect protein expression. Results USP5 was upregulated in UCEC patients. Its downregulation led to decreased migration and proliferation of UCEC cells, and meanwhile, cell cycle arrest and apoptosis were induced. By contrast, USP5 overexpression significantly promoted cell migration and cell mitosis. Further study revealed that USP5 could cause hyperactivation of mTOR/4EBP1 pathway and rapamycin treatment could totally reverse the effects of UPS5 overexpression. Conclusion Our data demonstrated that USP5 functioned as an oncogene in UCEC, which provided new insights into the pathogenesis of UCEC and a promising molecular target for UCEC diagnosis and therapy.
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Affiliation(s)
- Yinghua Li
- The Third Departments of Gynecological Oncology, Hunan Cancer Hospital, Changsha, 410013, Hunan, People's Republic of China
| | - Jian Zhou
- The Third Departments of Gynecological Oncology, Hunan Cancer Hospital, Changsha, 410013, Hunan, People's Republic of China
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The oncogenic role of ubiquitin specific peptidase (USP8) and its signaling pathways targeting for cancer therapeutics. Arch Biochem Biophys 2021; 701:108811. [PMID: 33600786 DOI: 10.1016/j.abb.2021.108811] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 01/08/2021] [Accepted: 02/11/2021] [Indexed: 01/06/2023]
Abstract
USP8 is a deubiquitinating enzyme in the family of ubiquitin-specific proteases (USPs) which can remove ubiquitin from the substrate and protect the substrate from degradation. The upregulated or mutated USP8 becomes hyperactivated and stabilizes numerous oncogenes or proto-oncogenes leading to cancer progression and survival by activating multiple signaling pathways. Moreover, USP8 inhibition is also important to overcome anticancer drug-resistant. This review is the first study to find, combine, analyze, and represent the multiple oncogenic signaling pathways with their downstream and upstream regulation activated or enhanced by USP8, which will help the researchers to find any therapeutic strategy for drug discovery by inhibiting or suppressing the multi-targeted USP8.
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Majumdar U, Manivannan S, Basu M, Ueyama Y, Blaser MC, Cameron E, McDermott MR, Lincoln J, Cole SE, Wood S, Aikawa E, Lilly B, Garg V. Nitric oxide prevents aortic valve calcification by S-nitrosylation of USP9X to activate NOTCH signaling. SCIENCE ADVANCES 2021; 7:7/6/eabe3706. [PMID: 33547080 PMCID: PMC7864581 DOI: 10.1126/sciadv.abe3706] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 12/18/2020] [Indexed: 05/22/2023]
Abstract
Calcific aortic valve disease (CAVD) is an increasingly prevalent condition, and endothelial dysfunction is implicated in its etiology. We previously identified nitric oxide (NO) as a calcification inhibitor by its activation of NOTCH1, which is genetically linked to human CAVD. Here, we show NO rescues calcification by an S-nitrosylation-mediated mechanism in porcine aortic valve interstitial cells and single-cell RNA-seq demonstrated NO regulates the NOTCH pathway. An unbiased proteomic approach to identify S-nitrosylated proteins in valve cells found enrichment of the ubiquitin-proteasome pathway and implicated S-nitrosylation of USP9X (ubiquitin specific peptidase 9, X-linked) in NOTCH regulation during calcification. Furthermore, S-nitrosylated USP9X was shown to deubiquitinate and stabilize MIB1 for NOTCH1 activation. Consistent with this, genetic deletion of Usp9x in mice demonstrated CAVD and human calcified aortic valves displayed reduced S-nitrosylation of USP9X. These results demonstrate a previously unidentified mechanism by which S-nitrosylation-dependent regulation of a ubiquitin-associated pathway prevents CAVD.
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Affiliation(s)
- Uddalak Majumdar
- Center for Cardiovascular Research, Nationwide Children's Hospital, Columbus, OH, USA
- The Heart Center, Nationwide Children's Hospital, Columbus, OH, USA
| | - Sathiyanarayanan Manivannan
- Center for Cardiovascular Research, Nationwide Children's Hospital, Columbus, OH, USA
- The Heart Center, Nationwide Children's Hospital, Columbus, OH, USA
| | - Madhumita Basu
- Center for Cardiovascular Research, Nationwide Children's Hospital, Columbus, OH, USA
- The Heart Center, Nationwide Children's Hospital, Columbus, OH, USA
- Department of Pediatrics, The Ohio State University, Columbus, OH, USA
| | - Yukie Ueyama
- Center for Cardiovascular Research, Nationwide Children's Hospital, Columbus, OH, USA
- The Heart Center, Nationwide Children's Hospital, Columbus, OH, USA
| | - Mark C Blaser
- Division of Cardiovascular Medicine, Department of Medicine, Center for Interdisciplinary Cardiovascular Sciences, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Emily Cameron
- Center for Cardiovascular Research, Nationwide Children's Hospital, Columbus, OH, USA
- The Heart Center, Nationwide Children's Hospital, Columbus, OH, USA
| | - Michael R McDermott
- Center for Cardiovascular Research, Nationwide Children's Hospital, Columbus, OH, USA
- The Heart Center, Nationwide Children's Hospital, Columbus, OH, USA
| | - Joy Lincoln
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI, USA
- Herma Heart Institute, Division of Pediatric Cardiology, Children's Wisconsin, Milwaukee, WI, USA
| | - Susan E Cole
- Department of Molecular Genetics, The Ohio State University, Columbus, OH, USA
| | - Stephen Wood
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, Queensland, Australia
| | - Elena Aikawa
- Division of Cardiovascular Medicine, Department of Medicine, Center for Interdisciplinary Cardiovascular Sciences, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Division of Cardiovascular Medicine, Department of Medicine, Center of Excellence in Vascular Biology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Brenda Lilly
- Center for Cardiovascular Research, Nationwide Children's Hospital, Columbus, OH, USA
- The Heart Center, Nationwide Children's Hospital, Columbus, OH, USA
- Department of Pediatrics, The Ohio State University, Columbus, OH, USA
| | - Vidu Garg
- Center for Cardiovascular Research, Nationwide Children's Hospital, Columbus, OH, USA.
- The Heart Center, Nationwide Children's Hospital, Columbus, OH, USA
- Department of Pediatrics, The Ohio State University, Columbus, OH, USA
- Department of Molecular Genetics, The Ohio State University, Columbus, OH, USA
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Rong Z, Zhu Z, Cai S, Zhang B. Knockdown of USP8 Inhibits the Growth of Lung Cancer Cells. Cancer Manag Res 2020; 12:12415-12422. [PMID: 33293867 PMCID: PMC7719325 DOI: 10.2147/ijn.s259191] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 10/15/2020] [Indexed: 01/17/2023] Open
Abstract
Purpose Lung cancer is the deadliest tumor in the world. This study aimed to investigate the effection of USP8 on the proliferation and growth of NSCLC cells. Methods The proliferation, migration, invasion, cell cycle progression, and apoptosis of A549 and H1299 cells were evaluated with CCK8, colony formation, scratch, transwell, and flow cytometry experiments. Furthermore, the expression of cell cycle- and apoptosis-related proteins was detected by western blot. Results Knockdown of USP8 inhibited the proliferation, migration, invasion, and cell cycle progression of A549 and H1299 cells, and promoted the apoptosis. The results of western blot indicated that knockdown of USP8 down-regulated the expression of Cyclin D1, CDK4, CDK6, p-AKT, and Bcl2, and up-regulated the expression of Bax. Conclusion Knockdown of USP8 inhibited the proliferation of human lung cancer cells by regulating cell cycle- and apoptosis-related proteins. USP8 may be a therapeutic target for lung cancer.
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Affiliation(s)
- Zhenhua Rong
- Minimally Invasive Surgery Oncology, The People's Hospital of Caoxian, Heze, Shandong, People's Republic of China
| | - Zongmin Zhu
- Department of Pharmacology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250011, People's Republic of China
| | - Shihua Cai
- Department of Outpatient, Heze Municipal Hospital, Heze 274000, Shandong, People's Republic of China
| | - Bingqing Zhang
- Department of Respiratory Medicine, Heze Municipal Hospital, Heze 274000, Shandong, People's Republic of China
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Rong Z, Zhu Z, Cai S, Zhang B. Knockdown of USP8 Inhibits the Growth of Lung Cancer Cells . Cancer Manag Res 2020. [DOI: 10.2147/cmar.s259191] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
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Sun J, Shen D, Zheng Y, Ren H, Liu H, Chen X, Gao Y. USP8 Inhibitor Suppresses HER-2 Positive Gastric Cancer Cell Proliferation and Metastasis via the PI3K/AKT Signaling Pathway. Onco Targets Ther 2020; 13:9941-9952. [PMID: 33116578 PMCID: PMC7547803 DOI: 10.2147/ott.s271496] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 09/02/2020] [Indexed: 12/25/2022] Open
Abstract
Purpose Referring to global cancer statistics, the incidence of gastric cancer (GC) was ranked sixth; however, detailed mechanisms underlying its development were not thoroughly investigated. Previous studies have reported that inhibition of ubiquitin-specific peptidase 8 (USP8) induced degradation of several receptor tyrosine kinases, such as epidermal growth factor receptor (EGFR), embryonic stem cells (ESCs), etc. Nevertheless, the regulation of HER-2 by USP8 and the molecular mechanisms controlling their role in the pathogenesis of GC remain unknown. Patients and Methods A total of 69 patients with histologically confirmed GC were recruited to satisfy the purpose of this study. Initially, tumor samples and GC cell lines were used to detect USP8 and HER-2 levels. Next, MTT and colony formation assays were applied to analyze cell proliferation capability. Cell migration and invasion ability were examined by transwell assays. To examine related mRNA and protein expressions, Western blot assays and quantitative real-time PCR (qRT-PCR) were performed. Immunofluorescence was used to detect the effect of USP8 inhibitor on GC cells. Finally, in vivo experiments were used to examine the effect of USP8 inhibitor. Results Patients with USP8 high-expression tumors have shown worse overall survival while opposite results found in patients with low USP8 expressions. Regarding disease prognosis, patients with low expression of USP8 and HER-2 were performed better prognosis, whereas those with overexpression of USP8 and HER-2 shown poor prognosis. USP8 inhibitor significantly inhibited HER-2 positive cell NCI-N87 proliferation and metastasis. In addition, USP8 stabilizes HER-2, preventing it from ubiquitin proteasome-mediated degradation. In vivo studies confirmed that the USP8 inhibitor inhibited HER-2 positive cell NCI-N87 tumor growth. However, it did not affect the HER2-negative cell MGC-803. Careful investigation unraveled that the USP8 inhibitor significantly inhibited NCI-N87 cell proliferation and metastasis via phosphatidylinositol-3-kinases/protein-serine-threonine kinase (PI3K/AKT) pathway. Conclusion The USP8 inhibited HER-2 positive GC cell proliferation and migration in vivo and in vitro and probably served as a novel potential therapeutic biomarker for HER-2 positive GC.
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Affiliation(s)
- Jiangang Sun
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Dandan Shen
- Key Laboratory of Advanced Pharmaceutical Technology, Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Yichao Zheng
- Key Laboratory of Advanced Pharmaceutical Technology, Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Hongmei Ren
- Key Laboratory of Advanced Pharmaceutical Technology, Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Hongmin Liu
- Key Laboratory of Advanced Pharmaceutical Technology, Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Xiaoping Chen
- Department of Hepatic Surgery of Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Yongshun Gao
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
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Sun J, Shen D, Gao Y, Zheng Y, Zhao L, Maa M, Liu H, Chen X. Down-Regulation of USP8 Suppresses HER-3 Positive Gastric Cancer Cells Proliferation. Onco Targets Ther 2020; 13:7973-7984. [PMID: 32848421 PMCID: PMC7429216 DOI: 10.2147/ott.s264108] [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: 06/03/2020] [Accepted: 07/27/2020] [Indexed: 12/22/2022] Open
Abstract
Background Ubiquitin specific peptidase 8 (USP8) has been reported to induce the degradation of several receptor tyrosine kinases such as epidermal growth factor receptor (EGFR), among which human epidermal growth factor receptor-3 (HER-3) is one of them. However, the role and functional mechanisms of USP8 and HER-3 in gastric cancer (GC) remain unknown. Objective To explore the function and mechanism of USP8 and HER-3 in the progression of GC. Materials and Methods Eighty-eight patients with histologically confirmed GC were recruited for this study. Tumor samples and GC cell lines were used to detect USP8 and HER-3 levels. MGC803 (HER-3 negative GC cell) was selected as the control group and NCI-N87, MKN-45 and AGS (HER-3 positive GC cells) as the experimental group. USP8i and si-RNA were then used to down-regulate USP8 in each group. Apoptosis and cell-cycle experiments were performed to detect the effects of USP8 on GC cells. Cytotoxicity Assay Kit (MTT) and colony formation assays were used to analyze cell proliferation. Cell migration and invasion ability were examined by wound healing. The expression of related mRNA and protein was detected by Western blot and quantitative real-time PCR (qRT-PCR). In vivo experiments were used to examine the effect of USP8 and HER-3. Results Patients with high expression of USP8 or HER-3 tumors alone died earlier than those with low expression and the patients with both USP8 and HER-3 high expression had a shorter overall survival than those with the opposite pattern (both USP8 and HER-3 low expression). Down-regulation of USP8 inhibited cell proliferation and cell metastasis and also reduced the HER-3 expression. We also observed that down-regulation of USP8 inhibited the proliferation of GC cells which highly expressed HER-3. Moreover, down-regulation of USP8 could promote the apoptosis of HER3-positive GC cells and inhibit the proliferation of them by affecting the cell-cycle. In vivo studies demonstrated that down-regulation of USP8 inhibited HER-3 positive tumors growth. Conclusion Down-regulation of USP8 inhibits HER-3 positive GC cells proliferation in vivo and in vitro, which indicate that USP8 represents a feasible choice as a therapeutic target for HER-3 positive GC cells.
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Affiliation(s)
- Jiangang Sun
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Dandan Shen
- Key Laboratory of Advanced Pharmaceutical Technology, Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Yongshun Gao
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Yichao Zheng
- Key Laboratory of Advanced Pharmaceutical Technology, Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Lijuan Zhao
- Key Laboratory of Advanced Pharmaceutical Technology, Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Mamum Maa
- Key Laboratory of Advanced Pharmaceutical Technology, Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Hongmin Liu
- Key Laboratory of Advanced Pharmaceutical Technology, Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Xiaoping Chen
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China.,Department of Hepatic Surgery of Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
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