1
|
Roozitalab G, Abedi B, Imani S, Farghadani R, Jabbarzadeh Kaboli P. Comprehensive assessment of TECENTRIQ® and OPDIVO®: analyzing immunotherapy indications withdrawn in triple-negative breast cancer and hepatocellular carcinoma. Cancer Metastasis Rev 2024; 43:889-918. [PMID: 38409546 DOI: 10.1007/s10555-024-10174-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 02/05/2024] [Indexed: 02/28/2024]
Abstract
Atezolizumab (TECENTRIQ®) and nivolumab (OPDIVO®) are both immunotherapeutic indications targeting programmed cell death 1 ligand 1 (PD-L1) and programmed cell death 1 (PD-1), respectively. These inhibitors hold promise as therapies for triple-negative breast cancer (TNBC) and hepatocellular carcinoma (HCC) and have demonstrated encouraging results in reducing the progression and spread of tumors. However, due to their adverse effects and low response rates, the US Food and Drug Administration (FDA) has withdrawn the approval of atezolizumab in TNBC and nivolumab in HCC treatment. The withdrawals of atezolizumab and nivolumab have raised concerns regarding their effectiveness and the ability to predict treatment responses. Therefore, the current study aims to investigate the immunotherapy withdrawal of PD-1/PD-L1 inhibitors, specifically atezolizumab for TNBC and nivolumab for HCC. This study will examine both the structural and clinical aspects. This review provides detailed insights into the structure of the PD-1 receptor and its ligands, the interactions between PD-1 and PD-L1, and their interactions with the withdrawn antibodies (atezolizumab and nivolumab) as well as PD-1 and PD-L1 modifications. In addition, this review further assesses these antibodies in the context of TNBC and HCC. It seeks to elucidate the factors that contribute to diverse responses to PD-1/PD-L1 therapy in different types of cancer and propose approaches for predicting responses, mitigating the potential risks linked to therapy withdrawals, and optimizing patient outcomes. By better understanding the mechanisms underlying responses to PD-1/PD-L1 therapy and developing strategies to predict these responses, it is possible to create more efficient treatments for TNBC and HCC.
Collapse
Affiliation(s)
- Ghazaal Roozitalab
- Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran
| | - Behnaz Abedi
- Department of Basic Sciences, Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran
| | - Saber Imani
- Shulan International Medical College, Zhejiang Shuren University, Hangzhou, Zhejiang, People's Republic of China
| | - Reyhaneh Farghadani
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500, Subang Jaya, Selangor Darul Ehsan, Malaysia.
| | - Parham Jabbarzadeh Kaboli
- Graduate Institute of Biomedical Sciences, Institute of Biochemistry and Molecular Biology, Research Center for Cancer Biology, Cancer Biology and Precision Therapeutics Center, and Center for Molecular Medicine, China Medical University, Taichung, 406, Taiwan.
| |
Collapse
|
2
|
Tang J, Liu H, Li J, Zhang Y, Yao S, Yang K, You Z, Qiao X, Song Y. Regulation of post-translational modification of PD-L1 and associated opportunities for novel small-molecule therapeutics. Future Med Chem 2024; 16:1583-1599. [PMID: 38949857 DOI: 10.1080/17568919.2024.2366146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 06/03/2024] [Indexed: 07/02/2024] Open
Abstract
PD-L1 is overexpressed on the surface of tumor cells and binds to PD-1, resulting in tumor immune escape. Therapeutic strategies to target the PD-1/PD-L1 pathway involve blocking the binding. Immune checkpoint inhibitors have limited efficacy against tumors because PD-L1 is also present in the cytoplasm. PD-L1 of post-translational modifications (PTMs) have uncovered numerous mechanisms contributing to carcinogenesis and have identified potential therapeutic targets. Therefore, small molecule inhibitors can block crucial carcinogenic signaling pathways, making them a potential therapeutic option. To better develop small molecule inhibitors, we have summarized the PTMs of PD-L1. This review discusses the regulatory mechanisms of small molecule inhibitors in carcinogenesis and explore their potential applications, proposing a novel approach for tumor immunotherapy based on PD-L1 PTM.
Collapse
Affiliation(s)
- Jinglin Tang
- Key Laboratory of Pharmaceutical Quality Control of Hebei Province, College of Pharmaceutical Sciences, Hebei University, Baoding, Hebei 071002, China
| | - Han Liu
- Key Laboratory of Pharmaceutical Quality Control of Hebei Province, College of Pharmaceutical Sciences, Hebei University, Baoding, Hebei 071002, China
| | - Jinze Li
- Key Laboratory of Pharmaceutical Quality Control of Hebei Province, College of Pharmaceutical Sciences, Hebei University, Baoding, Hebei 071002, China
| | - Yibo Zhang
- Key Laboratory of Pharmaceutical Quality Control of Hebei Province, College of Pharmaceutical Sciences, Hebei University, Baoding, Hebei 071002, China
| | - Suyang Yao
- Key Laboratory of Pharmaceutical Quality Control of Hebei Province, College of Pharmaceutical Sciences, Hebei University, Baoding, Hebei 071002, China
| | - Kan Yang
- Key Laboratory of Pharmaceutical Quality Control of Hebei Province, College of Pharmaceutical Sciences, Hebei University, Baoding, Hebei 071002, China
- Key Laboratory of Medicinal Chemistry & Molecular Diagnosis, Ministry of Education, Hebei University, Baoding, Hebei 071002, China
| | - Zhihao You
- Key Laboratory of Pharmaceutical Quality Control of Hebei Province, College of Pharmaceutical Sciences, Hebei University, Baoding, Hebei 071002, China
| | - Xiaoqiang Qiao
- Key Laboratory of Pharmaceutical Quality Control of Hebei Province, College of Pharmaceutical Sciences, Hebei University, Baoding, Hebei 071002, China
- Key Laboratory of Medicinal Chemistry & Molecular Diagnosis, Ministry of Education, Hebei University, Baoding, Hebei 071002, China
| | - Yali Song
- Key Laboratory of Pharmaceutical Quality Control of Hebei Province, College of Pharmaceutical Sciences, Hebei University, Baoding, Hebei 071002, China
- State Key Laboratory of New Pharmaceutical Preparations & Excipients, Hebei University, Baoding, Hebei 071002, China
| |
Collapse
|
3
|
Zhang C, Sun N, Fei Q, Peng L, Wei C, Liu X, Miao S, Chai M, Wang F, Wang D, Hong J, Huang S, Zhang S, Qiu H. MEN1 deficiency stabilizes PD-L1 and promotes tumor immune evasion of lung cancer. Cancer Sci 2024; 115:2515-2527. [PMID: 38685894 PMCID: PMC11309931 DOI: 10.1111/cas.16196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 04/09/2024] [Accepted: 04/12/2024] [Indexed: 05/02/2024] Open
Abstract
Multiple Endocrine Neoplasia 1 gene (MEN1), which is known to be a tumor suppressor gene in lung tissues, encodes a 610 amino acid protein menin. Previous research has proven that MEN1 deficiency promotes the malignant progression of lung cancer. However, the biological role of this gene in the immune microenvironment of lung cancer remains unclear. In this study, we found that programmed cell death-ligand 1 (PD-L1) is upregulated in lung-specific KrasG12D mutation-induced lung adenocarcinoma in mice, after Men1 deficiency. Simultaneously, CD8+ and CD3+ T cells are depleted, and their cytotoxic effects are suppressed. In vitro, PD-L1 is inhibited by the overexpression of menin. Mechanistically, we found that MEN1 inactivation promotes the deubiquitinating activity of COP9 signalosome subunit 5 (CSN5) and subsequently increases the level of PD-L1.
Collapse
Affiliation(s)
- Cuncun Zhang
- School of NursingAnhui Medical UniversityHefeiChina
| | - Ningning Sun
- School of NursingAnhui Medical UniversityHefeiChina
| | - Qingze Fei
- School of NursingAnhui Medical UniversityHefeiChina
| | - Linlin Peng
- School of NursingAnhui Medical UniversityHefeiChina
| | - Chengyu Wei
- School of NursingAnhui Medical UniversityHefeiChina
| | - Xiangyu Liu
- School of NursingAnhui Medical UniversityHefeiChina
| | - Sainan Miao
- School of NursingAnhui Medical UniversityHefeiChina
| | - Mengqi Chai
- School of NursingAnhui Medical UniversityHefeiChina
| | - Fang Wang
- Department of PathologyZhejiang HospitalHangzhouChina
| | - Di Wang
- School of NursingAnhui Medical UniversityHefeiChina
| | | | - Shenghai Huang
- Department of Microbiology, The Institute of Clinical Virology, School of Basic Medical Sciences, Anhui Medical UniversityHefeiChina
| | - Shihao Zhang
- Institute of Clinical Pharmacology, Anhui Medical University; Key Laboratory of Anti‐Inflammatory and Immune Medicine, Ministry of EducationAnhui Collaborative Innovation Centre of Anti‐Inflammatory and Immune MedicineHefeiChina
| | - Huan Qiu
- School of NursingAnhui Medical UniversityHefeiChina
| |
Collapse
|
4
|
Cui L, Yang L, Lai B, Luo L, Deng H, Chen Z, Wang Z. Integrative and comprehensive pan-cancer analysis of ubiquitin specific peptidase 11 ( USP11) as a prognostic and immunological biomarker. Heliyon 2024; 10:e34523. [PMID: 39114046 PMCID: PMC11305246 DOI: 10.1016/j.heliyon.2024.e34523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Revised: 07/02/2024] [Accepted: 07/10/2024] [Indexed: 08/10/2024] Open
Abstract
The significance of USP11 as a critical regulator in cancer has garnered substantial attention, primarily due to its catalytic activity as a deubiquitinating enzyme. Nonetheless, a thorough evaluation of USP11 across various cancer types in pan-cancer studies remains absent. Our analysis integrates data from a variety of sources, including five immunotherapy cohorts, thirty-three cohorts from The Cancer Genome Atlas (TCGA), and sixteen cohorts from the Gene Expression Omnibus (GEO), two of which involve single-cell transcriptomic data. Our findings indicate that aberrant USP11 expression is predictive of survival outcomes across various cancer types. The highest frequency of genomic alterations was observed in uterine corpus endometrial carcinoma (UCEC), with single-cell transcriptome analysis revealing significantly higher USP11 expression in plasmacytoid dendritic cells and mast cells. Notably, USP11 expression was associated with the infiltration levels of CD8+ T cells and natural killer (NK) activated cells. Additionally, in the skin cutaneous melanoma (SKCM) phs000452 cohort, patients with higher USP11 mRNA levels during immunotherapy experienced a significantly shorter median progression-free survival. USP11 emerges as a promising molecular biomarker with significant potential for predicting patient prognosis and immunoreactivity across various cancer types.
Collapse
Affiliation(s)
- Lijuan Cui
- Pathology Department, Suining Central Hospital, Suining, Sichuan, 629000, China
| | - Ling Yang
- Pathology Department, Suining Central Hospital, Suining, Sichuan, 629000, China
| | - Boan Lai
- Pathology Department, Suining Central Hospital, Suining, Sichuan, 629000, China
| | - Lingzhi Luo
- Pathology Department, Suining Central Hospital, Suining, Sichuan, 629000, China
| | - Haoyue Deng
- Pathology Department, Suining Central Hospital, Suining, Sichuan, 629000, China
| | - Zhongyi Chen
- Pathology Department, Suining Central Hospital, Suining, Sichuan, 629000, China
| | - Zixing Wang
- Pathology Department, Suining Central Hospital, Suining, Sichuan, 629000, China
| |
Collapse
|
5
|
Liu F, Chen J, Li K, Li H, Zhu Y, Zhai Y, Lu B, Fan Y, Liu Z, Chen X, Jia X, Dong Z, Liu K. Ubiquitination and deubiquitination in cancer: from mechanisms to novel therapeutic approaches. Mol Cancer 2024; 23:148. [PMID: 39048965 PMCID: PMC11270804 DOI: 10.1186/s12943-024-02046-3] [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: 04/17/2024] [Accepted: 06/15/2024] [Indexed: 07/27/2024] Open
Abstract
Ubiquitination, a pivotal posttranslational modification of proteins, plays a fundamental role in regulating protein stability. The dysregulation of ubiquitinating and deubiquitinating enzymes is a common feature in various cancers, underscoring the imperative to investigate ubiquitin ligases and deubiquitinases (DUBs) for insights into oncogenic processes and the development of therapeutic interventions. In this review, we discuss the contributions of the ubiquitin-proteasome system (UPS) in all hallmarks of cancer and progress in drug discovery. We delve into the multiple functions of the UPS in oncology, including its regulation of multiple cancer-associated pathways, its role in metabolic reprogramming, its engagement with tumor immune responses, its function in phenotypic plasticity and polymorphic microbiomes, and other essential cellular functions. Furthermore, we provide a comprehensive overview of novel anticancer strategies that leverage the UPS, including the development and application of proteolysis targeting chimeras (PROTACs) and molecular glues.
Collapse
Affiliation(s)
- Fangfang Liu
- Tianjian Laboratory of Advanced Biomedical Sciences, Academy of Medical Sciences, College of Medicine, Zhengzhou University, Zhengzhou, Henan, 450001, China
- China-US (Henan) Hormel Cancer Institute, Zhengzhou, Henan, 450000, China
| | - Jingyu Chen
- Department of Pediatric Medicine, School of Third Clinical Medical Sciences, Zhengzhou University, Zhengzhou, 450000, China
| | - Kai Li
- Department of Clinical Medicine, School of First Clinical Medical Sciences, Zhengzhou University, Zhengzhou, 450000, China
| | - Haochen Li
- Department of Clinical Medicine, School of First Clinical Medical Sciences, Zhengzhou University, Zhengzhou, 450000, China
| | - Yiyi Zhu
- Department of Clinical Medicine, School of First Clinical Medical Sciences, Zhengzhou University, Zhengzhou, 450000, China
| | - Yubo Zhai
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450000, China
| | - Bingbing Lu
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450000, China
| | - Yanle Fan
- China-US (Henan) Hormel Cancer Institute, Zhengzhou, Henan, 450000, China
| | - Ziyue Liu
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450000, China
| | - Xiaojie Chen
- School of Basic Medicine, Henan University of Science and Technology, Luoyang, China
| | - Xuechao Jia
- Henan International Joint Laboratory of TCM Syndrome and Prescription in Signaling, Traditional Chinese Medicine (Zhong Jing) School, Henan University of Chinese Medicine, Zhengzhou, Henan, China.
| | - Zigang Dong
- Tianjian Laboratory of Advanced Biomedical Sciences, Academy of Medical Sciences, College of Medicine, Zhengzhou University, Zhengzhou, Henan, 450001, China.
- China-US (Henan) Hormel Cancer Institute, Zhengzhou, Henan, 450000, China.
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450000, China.
| | - Kangdong Liu
- Tianjian Laboratory of Advanced Biomedical Sciences, Academy of Medical Sciences, College of Medicine, Zhengzhou University, Zhengzhou, Henan, 450001, China.
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450000, China.
| |
Collapse
|
6
|
Cai M, Xu M, Yu D, Wang Q, Liu S. Posttranslational regulatory mechanism of PD-L1 in cancers and associated opportunities for novel small-molecule therapeutics. Acta Biochim Biophys Sin (Shanghai) 2024. [PMID: 38826132 DOI: 10.3724/abbs.2024085] [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: 06/04/2024] Open
Abstract
Despite the tremendous progress in cancer research over the past few decades, effective therapeutic strategies are still urgently needed. Accumulating evidence suggests that immune checkpoints are the cause of tumor immune escape. PD-1/PD-L1 are among them. Posttranslational modification is the most critical step for protein function, and the regulation of PD-L1 by small molecules through posttranslational modification is highly valuable. In this review, we discuss the mechanisms of tumor cell immune escape and several posttranslational modifications associated with PD-L1 and describe examples in which small molecules can regulate PD-L1 through posttranslational modifications. Herein, we propose that the use of small molecule compounds that act by inhibiting PD-L1 through posttranslational modifications is a promising therapeutic approach with the potential to improve clinical outcomes for cancer patients.
Collapse
|
7
|
Hsu SK, Chou CK, Lin IL, Chang WT, Kuo IY, Chiu CC. Deubiquitinating enzymes: potential regulators of the tumor microenvironment and implications for immune evasion. Cell Commun Signal 2024; 22:259. [PMID: 38715050 PMCID: PMC11075295 DOI: 10.1186/s12964-024-01633-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 04/24/2024] [Indexed: 05/12/2024] Open
Abstract
Ubiquitination and deubiquitination are important forms of posttranslational modification that govern protein homeostasis. Deubiquitinating enzymes (DUBs), a protein superfamily consisting of more than 100 members, deconjugate ubiquitin chains from client proteins to regulate cellular homeostasis. However, the dysregulation of DUBs is reportedly associated with several diseases, including cancer. The tumor microenvironment (TME) is a highly complex entity comprising diverse noncancerous cells (e.g., immune cells and stromal cells) and the extracellular matrix (ECM). Since TME heterogeneity is closely related to tumorigenesis and immune evasion, targeting TME components has recently been considered an attractive therapeutic strategy for restoring antitumor immunity. Emerging studies have revealed the involvement of DUBs in immune modulation within the TME, including the regulation of immune checkpoints and immunocyte infiltration and function, which renders DUBs promising for potent cancer immunotherapy. Nevertheless, the roles of DUBs in the crosstalk between tumors and their surrounding components have not been comprehensively reviewed. In this review, we discuss the involvement of DUBs in the dynamic interplay between tumors, immune cells, and stromal cells and illustrate how dysregulated DUBs facilitate immune evasion and promote tumor progression. We also summarize potential small molecules that target DUBs to alleviate immunosuppression and suppress tumorigenesis. Finally, we discuss the prospects and challenges regarding the targeting of DUBs in cancer immunotherapeutics and several urgent problems that warrant further investigation.
Collapse
Affiliation(s)
- Sheng-Kai Hsu
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Chon-Kit Chou
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Science, University of Macau, Macau SAR, 999078, P.R. China
| | - I-Ling Lin
- Department of Medical Laboratory Science and Biotechnology, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Wen-Tsan Chang
- Division of General and Digestive Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung, 807, Taiwan
- Department of Surgery, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
- Center for Cancer Research, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - I-Ying Kuo
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung, 807, Taiwan.
| | - Chien-Chih Chiu
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung, 807, Taiwan.
- Center for Cancer Research, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, 807, Taiwan.
- Department of Biological Sciences, National Sun Yat-Sen University, Kaohsiung, 804, Taiwan.
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, 807, Taiwan.
| |
Collapse
|
8
|
Gao H, Chen Z, Zhao L, Ji C, Xing F. Cellular functions, molecular signalings and therapeutic applications: Translational potential of deubiquitylating enzyme USP9X as a drug target in cancer treatment. Biochim Biophys Acta Rev Cancer 2024; 1879:189099. [PMID: 38582329 DOI: 10.1016/j.bbcan.2024.189099] [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: 08/29/2023] [Revised: 11/13/2023] [Accepted: 03/31/2024] [Indexed: 04/08/2024]
Abstract
Protein ubiquitination, one of the most significant post-translational modifications, plays an important role in controlling the proteins activity in diverse cellular processes. The reversible process of protein ubiquitination, known as deubiquitination, has emerged as a critical mechanism for maintaining cellular homeostasis. The deubiquitinases (DUBs), which participate in deubiquitination process are increasingly recognized as potential candidates for drug discovery. Among these DUBs, ubiquitin-specific protease 9× (USP9X), a highly conserved member of the USP family, exhibits versatile functions in various cellular processes, including the regulation of cell cycle, protein endocytosis, apoptosis, cell polarity, immunological microenvironment, and stem cell characteristics. The dysregulation and abnormal activities of USP9X are influenced by intricate cellular signaling pathway crosstalk and upstream non-coding RNAs. The complex expression patterns and controversial clinical significance of USP9X in cancers suggest its potential as a prognostic biomarker. Furthermore, USP9X inhibitors has shown promising antitumor activity and holds the potential to overcome therapeutic resistance in preclinical models. However, a comprehensive summary of the role and molecular functions of USP9X in cancer progression is currently lacking. In this review, we provide a comprehensive delineation of USP9X participation in numerous critical cellular processes, complicated signaling pathways within the tumor microenvironment, and its potential translational applications to combat therapeutic resistance. By systematically summarizing the updated molecular mechanisms of USP9X in cancer biology, this review aims to contribute to the advancement of cancer therapeutics and provide essential insights for specialists and clinicians in the development of improved cancer treatment strategies.
Collapse
Affiliation(s)
- Hongli Gao
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Zhiguang Chen
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Liang Zhao
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Ce Ji
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang 110004, China.
| | - Fei Xing
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang 110004, China.
| |
Collapse
|
9
|
Wang R, He S, Long J, Wang Y, Jiang X, Chen M, Wang J. Emerging therapeutic frontiers in cancer: insights into posttranslational modifications of PD-1/PD-L1 and regulatory pathways. Exp Hematol Oncol 2024; 13:46. [PMID: 38654302 DOI: 10.1186/s40164-024-00515-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 04/16/2024] [Indexed: 04/25/2024] Open
Abstract
The interaction between programmed cell death ligand 1 (PD-L1), which is expressed on the surface of tumor cells, and programmed cell death 1 (PD-1), which is expressed on T cells, impedes the effective activation of tumor antigen-specific T cells, resulting in the evasion of tumor cells from immune-mediated killing. Blocking the PD-1/PD-L1 signaling pathway has been shown to be effective in preventing tumor immune evasion. PD-1/PD-L1 blocking antibodies have garnered significant attention in recent years within the field of tumor treatments, given the aforementioned mechanism. Furthermore, clinical research has substantiated the efficacy and safety of this immunotherapy across various tumors, offering renewed optimism for patients. However, challenges persist in anti-PD-1/PD-L1 therapies, marked by limited indications and the emergence of drug resistance. Consequently, identifying additional regulatory pathways and molecules associated with PD-1/PD-L1 and implementing judicious combined treatments are imperative for addressing the intricacies of tumor immune mechanisms. This review briefly outlines the structure of the PD-1/PD-L1 molecule, emphasizing the posttranslational modification regulatory mechanisms and related targets. Additionally, a comprehensive overview on the clinical research landscape concerning PD-1/PD-L1 post-translational modifications combined with PD-1/PD-L1 blocking antibodies to enhance outcomes for a broader spectrum of patients is presented based on foundational research.
Collapse
Affiliation(s)
- Rong Wang
- Department of Pathology, Institute of Oncology, The School of Basic Medical Sciences & Diagnostic Pathology Center, Fujian Medical University, Fuzhou, Fujian, China
| | - Shiwei He
- School of Basic Medical Sciences, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Jun Long
- Shenzhen Geim Graphene Center, Tsinghua-Berkeley Shenzhen Institute & Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, Guangdong, China.
| | - Yian Wang
- The Key Laboratory of Model Animals and Stem Cell Biology in Hunan Province, School of Medicine, The Engineering Research Center of Reproduction and Translational Medicine of Hunan Province, Hunan Normal University, Changsha, Hunan, China
| | - Xianjie Jiang
- Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Mingfen Chen
- Department of Radiation Oncology, The Second Affiliated Hospital of Fujian Medical University, Fujian Medical University, Quanzhou, Fujian, China
| | - Jie Wang
- Department of Pathology, Institute of Oncology, The School of Basic Medical Sciences & Diagnostic Pathology Center, Fujian Medical University, Fuzhou, Fujian, China.
| |
Collapse
|
10
|
Chai F, Li P, Liu X, Zhou Z, Ren H. Targeting the PD-L1 cytoplasmic domain and its regulatory pathways to enhance cancer immunotherapy. J Mol Cell Biol 2024; 15:mjad070. [PMID: 37993416 PMCID: PMC11193063 DOI: 10.1093/jmcb/mjad070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 05/09/2023] [Accepted: 11/21/2023] [Indexed: 11/24/2023] Open
Abstract
As a significant member of the immune checkpoint, programmed cell death 1 ligand 1 (PD-L1) plays a critical role in cancer immune escape and has become an important target for cancer immunotherapy. Clinically approved drugs mainly target the extracellular domain of PD-L1. Recently, the small cytoplasmic domain of PD-L1 has been reported to regulate PD-L1 stability and function through multiple pathways. Therefore, the intracellular domain of PD-L1 and its regulatory pathways could be promising targets for cancer therapy, expanding available strategies for combined immunotherapy. Here, we summarize the emerging roles of the PD-L1 cytoplasmic domain and its regulatory pathways. The conserved motifs, homodimerization, and posttranslational modifications of the PD-L1 cytoplasmic domain have been reported to regulate the membrane anchoring, degradation, nuclear translocation, and glycosylation of PD-L1. This summary provides a comprehensive understanding of the functions of the PD-L1 cytoplasmic domain and evaluates the broad prospects for targeted therapy.
Collapse
Affiliation(s)
- Fangni Chai
- Division of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Pan Li
- Division of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Xin Liu
- Division of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Zhihui Zhou
- Division of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Haiyan Ren
- Division of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University, Chengdu 610041, China
- Collaborative Innovation Center of Biotherapy, Chengdu 610041, China
| |
Collapse
|
11
|
Feng Y, Li Y, Ma F, Wu E, Cheng Z, Zhou S, Wang Z, Yang L, Sun X, Zhang J. Notoginsenoside Ft1 inhibits colorectal cancer growth by increasing CD8 + T cell proportion in tumor-bearing mice through the USP9X signaling pathway. Chin J Nat Med 2024; 22:329-340. [PMID: 38658096 DOI: 10.1016/s1875-5364(24)60623-0] [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: 08/10/2023] [Indexed: 04/26/2024]
Abstract
The management of colorectal cancer (CRC) poses a significant challenge, necessitating the development of innovative and effective therapeutics. Our research has shown that notoginsenoside Ft1 (Ng-Ft1), a small molecule, markedly inhibits subcutaneous tumor formation in CRC and enhances the proportion of CD8+ T cells in tumor-bearing mice, thus restraining tumor growth. Investigation into the mechanism revealed that Ng-Ft1 selectively targets the deubiquitination enzyme USP9X, undermining its role in shielding β-catenin. This leads to a reduction in the expression of downstream effectors in the Wnt signaling pathway. These findings indicate that Ng-Ft1 could be a promising small-molecule treatment for CRC, working by blocking tumor progression via the Wnt signaling pathway and augmenting CD8+ T cell prevalence within the tumor environment.
Collapse
Affiliation(s)
- Yutao Feng
- Shanghai Key Laboratory of Compound Chinese Medicines, The MOE Key Laboratory for Standardization of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yuan Li
- Shanghai Key Laboratory of Compound Chinese Medicines, The MOE Key Laboratory for Standardization of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Fen Ma
- Shanghai Key Laboratory of Compound Chinese Medicines, The MOE Key Laboratory for Standardization of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Enjiang Wu
- Shanghai Key Laboratory of Compound Chinese Medicines, The MOE Key Laboratory for Standardization of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Zewei Cheng
- Shanghai Key Laboratory of Compound Chinese Medicines, The MOE Key Laboratory for Standardization of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Shiling Zhou
- Shanghai Key Laboratory of Compound Chinese Medicines, The MOE Key Laboratory for Standardization of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Zhengtao Wang
- Shanghai Key Laboratory of Compound Chinese Medicines, The MOE Key Laboratory for Standardization of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Li Yang
- Shanghai Key Laboratory of Compound Chinese Medicines, The MOE Key Laboratory for Standardization of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Xun Sun
- Gastrointestinal surgery, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China.
| | - Jiwei Zhang
- Shanghai Key Laboratory of Compound Chinese Medicines, The MOE Key Laboratory for Standardization of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| |
Collapse
|
12
|
Kim SB, Hwang S, Cha JY, Lee HJ. Programmed Death Ligand 1 Regulatory Crosstalk with Ubiquitination and Deubiquitination: Implications in Cancer Immunotherapy. Int J Mol Sci 2024; 25:2939. [PMID: 38474186 DOI: 10.3390/ijms25052939] [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: 02/05/2024] [Revised: 02/27/2024] [Accepted: 02/28/2024] [Indexed: 03/14/2024] Open
Abstract
Programmed death ligand 1 (PD-L1) plays a pivotal role in cancer immune evasion and is a critical target for cancer immunotherapy. This review focuses on the regulation of PD-L1 through the dynamic processes of ubiquitination and deubiquitination, which are crucial for its stability and function. Here, we explored the intricate mechanisms involving various E3 ubiquitin ligases and deubiquitinating enzymes (DUBs) that modulate PD-L1 expression in cancer cells. Specific ligases are discussed in detail, highlighting their roles in tagging PD-L1 for degradation. Furthermore, we discuss the actions of DUBs that stabilize PD-L1 by removing ubiquitin chains. The interplay of these enzymes not only dictates PD-L1 levels but also influences cancer progression and patient response to immunotherapies. Furthermore, we discuss the therapeutic implications of targeting these regulatory pathways and propose novel strategies to enhance the efficacy of PD-L1/PD-1-based therapies. Our review underscores the complexity of PD-L1 regulation and its significant impact on the tumor microenvironment and immunotherapy outcomes.
Collapse
Affiliation(s)
- Soon-Bin Kim
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon 21999, Republic of Korea
| | - Soonjae Hwang
- Department of Biochemistry, Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon University, Incheon 21999, Republic of Korea
| | - Ji-Young Cha
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon 21999, Republic of Korea
- Department of Biochemistry, Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon University, Incheon 21999, Republic of Korea
| | - Ho-Jae Lee
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon 21999, Republic of Korea
- Department of Biochemistry, Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon University, Incheon 21999, Republic of Korea
| |
Collapse
|
13
|
Ren W, Xu Z, Chang Y, Ju F, Wu H, Liang Z, Zhao M, Wang N, Lin Y, Xu C, Chen S, Rao Y, Lin C, Yang J, Liu P, Zhang J, Huang C, Xia N. Pharmaceutical targeting of OTUB2 sensitizes tumors to cytotoxic T cells via degradation of PD-L1. Nat Commun 2024; 15:9. [PMID: 38167274 PMCID: PMC10761827 DOI: 10.1038/s41467-023-44466-7] [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: 01/25/2023] [Accepted: 12/14/2023] [Indexed: 01/05/2024] Open
Abstract
PD-1 is a co-inhibitory receptor expressed by CD8+ T cells which limits their cytotoxicity. PD-L1 expression on cancer cells contributes to immune evasion by cancers, thus, understanding the mechanisms that regulate PD-L1 protein levels in cancers is important. Here we identify tumor-cell-expressed otubain-2 (OTUB2) as a negative regulator of antitumor immunity, acting through the PD-1/PD-L1 axis in various human cancers. Mechanistically, OTUB2 directly interacts with PD-L1 to disrupt the ubiquitination and degradation of PD-L1 in the endoplasmic reticulum. Genetic deletion of OTUB2 markedly decreases the expression of PD-L1 proteins on the tumor cell surface, resulting in increased tumor cell sensitivity to CD8+ T-cell-mediated cytotoxicity. To underscore relevance in human patients, we observe a significant correlation between OTUB2 expression and PD-L1 abundance in human non-small cell lung cancer. An inhibitor of OTUB2, interfering with its deubiquitinase activity without disrupting the OTUB2-PD-L1 interaction, successfully reduces PD-L1 expression in tumor cells and suppressed tumor growth. Together, these results reveal the roles of OTUB2 in PD-L1 regulation and tumor evasion and lays down the proof of principle for OTUB2 targeting as therapeutic strategy for cancer treatment.
Collapse
Affiliation(s)
- Wenfeng Ren
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen, Fujian, 361102, China
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, Fujian, 361102, China
| | - Zilong Xu
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen, Fujian, 361102, China
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, Fujian, 361102, China
| | - Yating Chang
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen, Fujian, 361102, China
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, Fujian, 361102, China
- School of Life Sciences, Xiamen University, Xiamen, Fujian, 361102, China
| | - Fei Ju
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen, Fujian, 361102, China
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, Fujian, 361102, China
| | - Hongning Wu
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen, Fujian, 361102, China
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, Fujian, 361102, China
- School of Life Sciences, Xiamen University, Xiamen, Fujian, 361102, China
| | - Zhiqi Liang
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen, Fujian, 361102, China
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, Fujian, 361102, China
- School of Life Sciences, Xiamen University, Xiamen, Fujian, 361102, China
| | - Min Zhao
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen, Fujian, 361102, China
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, Fujian, 361102, China
| | - Naizhen Wang
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen, Fujian, 361102, China
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, Fujian, 361102, China
| | - Yanhua Lin
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen, Fujian, 361102, China
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, Fujian, 361102, China
| | - Chenhang Xu
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen, Fujian, 361102, China
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, Fujian, 361102, China
- School of Life Sciences, Xiamen University, Xiamen, Fujian, 361102, China
| | - Shengming Chen
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen, Fujian, 361102, China
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, Fujian, 361102, China
| | - Yipeng Rao
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen, Fujian, 361102, China
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, Fujian, 361102, China
| | - Chaolong Lin
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen, Fujian, 361102, China
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, Fujian, 361102, China
| | - Jianxin Yang
- Department of Hepatobiliary & Pancreatic Surgery, The National Key Clinical Specialty, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, 361004, China
- Fujian Provincial Key Laboratory and Chronic Liver Disease and Hepatocellular Carcinoma, Xiamen, Fujian, 361004, China
| | - Pingguo Liu
- Department of Hepatobiliary & Pancreatic Surgery, The National Key Clinical Specialty, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, 361004, China.
- Fujian Provincial Key Laboratory and Chronic Liver Disease and Hepatocellular Carcinoma, Xiamen, Fujian, 361004, China.
| | - Jun Zhang
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen, Fujian, 361102, China.
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, Fujian, 361102, China.
| | - Chenghao Huang
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen, Fujian, 361102, China.
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, Fujian, 361102, China.
| | - Ningshao Xia
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen, Fujian, 361102, China.
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, Fujian, 361102, China.
- School of Life Sciences, Xiamen University, Xiamen, Fujian, 361102, China.
| |
Collapse
|
14
|
Abstract
Ubiquitination is an essential regulator of most, if not all, signalling pathways, and defects in cellular signalling are central to cancer initiation, progression and, eventually, metastasis. The attachment of ubiquitin signals by E3 ubiquitin ligases is directly opposed by the action of approximately 100 deubiquitinating enzymes (DUBs) in humans. Together, DUBs and E3 ligases coordinate ubiquitin signalling by providing selectivity for different substrates and/or ubiquitin signals. The balance between ubiquitination and deubiquitination is exquisitely controlled to ensure properly coordinated proteostasis and response to cellular stimuli and stressors. Not surprisingly, then, DUBs have been associated with all hallmarks of cancer. These relationships are often complex and multifaceted, highlighted by the implication of multiple DUBs in certain hallmarks and by the impact of individual DUBs on multiple cancer-associated pathways, sometimes with contrasting cancer-promoting and cancer-inhibiting activities, depending on context and tumour type. Although it is still understudied, the ever-growing knowledge of DUB function in cancer physiology will eventually identify DUBs that warrant specific inhibition or activation, both of which are now feasible. An integrated appreciation of the physiological consequences of DUB modulation in relevant cancer models will eventually lead to the identification of patient populations that will most likely benefit from DUB-targeted therapies.
Collapse
Affiliation(s)
- Grant Dewson
- Ubiquitin Signalling Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia.
- Department of Medical Biology, University of Melbourne, Melbourne, Victoria, Australia.
| | - Pieter J A Eichhorn
- Curtin Medical School, Curtin University, Perth, Western Australia, Australia.
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore.
| | - David Komander
- Ubiquitin Signalling Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia.
- Department of Medical Biology, University of Melbourne, Melbourne, Victoria, Australia.
| |
Collapse
|
15
|
Gao H, Yin J, Ji C, Yu X, Xue J, Guan X, Zhang S, Liu X, Xing F. Targeting ubiquitin specific proteases (USPs) in cancer immunotherapy: from basic research to preclinical application. J Exp Clin Cancer Res 2023; 42:225. [PMID: 37658402 PMCID: PMC10472646 DOI: 10.1186/s13046-023-02805-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 08/21/2023] [Indexed: 09/03/2023] Open
Abstract
Tumors have evolved in various mechanisms to evade the immune system, hindering the antitumor immune response and facilitating tumor progression. Immunotherapy has become a potential treatment strategy specific to different cancer types by utilizing multifarious molecular mechanisms to enhance the immune response against tumors. Among these mechanisms, the ubiquitin-proteasome system (UPS) is a significant non-lysosomal pathway specific to protein degradation, regulated by deubiquitinating enzymes (DUBs) that counterbalance ubiquitin signaling. Ubiquitin-specific proteases (USPs), the largest DUB family with the strongest variety, play critical roles in modulating immune cell function, regulating immune response, and participating in antigen processing and presentation during tumor progression. According to recent studies, the expressions of some USP family members in tumor cells are involved in tumor immune escape and immune microenvironment. This review explores the potential of targeting USPs as a new approach for cancer immunotherapy, highlighting recent basic and preclinical studies investigating the applications of USP inhibitors. By providing insights into the structure and function of USPs in cancer immunity, this review aims at assisting in developing new therapeutic approaches for enhancing the immunotherapy efficacy.
Collapse
Affiliation(s)
- Hongli Gao
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Jianqiao Yin
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Ce Ji
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Xiaopeng Yu
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Jinqi Xue
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Xin Guan
- Department of Gastroenterology, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Shuang Zhang
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Xun Liu
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, 110004, China.
| | - Fei Xing
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, 110004, China.
| |
Collapse
|
16
|
Feng C, Zhang L, Chang X, Qin D, Zhang T. Regulation of post-translational modification of PD-L1 and advances in tumor immunotherapy. Front Immunol 2023; 14:1230135. [PMID: 37554324 PMCID: PMC10405826 DOI: 10.3389/fimmu.2023.1230135] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 07/10/2023] [Indexed: 08/10/2023] Open
Abstract
The immune checkpoint molecules programmed cell death receptor 1 (PD-1) and programmed death ligand 1 (PD-L1) are one of the most promising targets for tumor immunotherapy. PD-L1 is overexpressed on the surface of tumor cells and inhibits T cell activation upon binding to PD⁃1 on the surface of T cells, resulting in tumor immune escape. The therapeutic strategy of targeting PD-1/PD-L1 involves blocking this binding and restoring the tumor-killing effect of immune cells. However, in clinical settings, a relatively low proportion of cancer patients have responded well to PD-1/PD-L1 blockade, and clinical outcomes have reached a bottleneck and no substantial progress has been made. In recent years, PD-L1 post-translation modifications (PTMs) have gradually become a hot topic in the field of PD-L1 research, which will provide new insights to improve the efficacy of current anti-PD-1/PD-L1 therapies. Here, we summarized and discussed multiple PTMs of PD-L1, including glycosylation, ubiquitination, phosphorylation, acetylation and palmitoylation, with a major emphasis on mechanism-based therapeutic strategies (including relevant enzymes and targets that are already in clinical use and that may become drugs in the future). We also summarized the latest research progress of PTMs of PD-L1/PD-1 in regulating immunotherapy. The review provided novel strategies and directions for tumor immunotherapy research based on the PTMs of PD-L1/PD-1.
Collapse
Affiliation(s)
- Chong Feng
- Thoracic Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Lening Zhang
- Thoracic Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Xin Chang
- Ophthalmology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Dongliang Qin
- Thoracic Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Tao Zhang
- Gastrointestinal and Colorectal Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| |
Collapse
|
17
|
Wang M, Zhang Z, Li Z, Zhu Y, Xu C. E3 ubiquitin ligases and deubiquitinases in bladder cancer tumorigenesis and implications for immunotherapies. Front Immunol 2023; 14:1226057. [PMID: 37497216 PMCID: PMC10366618 DOI: 10.3389/fimmu.2023.1226057] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Accepted: 06/23/2023] [Indexed: 07/28/2023] Open
Abstract
With the rapidly increasing incidence of bladder cancer in China and worldwide, great efforts have been made to understand the detailed mechanism of bladder cancer tumorigenesis. Recently, the introduction of immune checkpoint inhibitor-based immunotherapy has changed the treatment strategy for bladder cancer, especially for advanced bladder cancer, and has improved the survival of patients. The ubiquitin-proteasome system, which affects many biological processes, plays an important role in bladder cancer. Several E3 ubiquitin ligases and deubiquitinases target immune checkpoints, either directly or indirectly. In this review, we summarize the recent progress in E3 ubiquitin ligases and deubiquitinases in bladder cancer tumorigenesis and further highlight the implications for bladder cancer immunotherapies.
Collapse
Affiliation(s)
- Maoyu Wang
- Department of Urology, Shanghai Changhai Hospital, Naval Medical University, Shanghai, China
| | - Zhensheng Zhang
- Department of Urology, Shanghai Changhai Hospital, Naval Medical University, Shanghai, China
| | - Zhizhou Li
- Department of Urology, Shanghai Changhai Hospital, Naval Medical University, Shanghai, China
| | - Yasheng Zhu
- Department of Urology, Shanghai Changhai Hospital, Naval Medical University, Shanghai, China
- Department of Urology, Shanghai Changzheng Hospital, Naval Medical University, Shanghai, China
| | - Chuanliang Xu
- Department of Urology, Shanghai Changhai Hospital, Naval Medical University, Shanghai, China
| |
Collapse
|
18
|
Jiang Y, Hong K, Zhao Y, Xu K. Emerging role of deubiquitination modifications of programmed death-ligand 1 in cancer immunotherapy. Front Immunol 2023; 14:1228200. [PMID: 37415977 PMCID: PMC10321661 DOI: 10.3389/fimmu.2023.1228200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 06/09/2023] [Indexed: 07/08/2023] Open
Abstract
Immune evasion is essential for carcinogenesis and cancer progression. Programmed death-ligand 1 (PD-L1), a critical immune checkpoint molecule, interacts with programmed death receptor-1 (PD-1) on immune cells to suppress anti-tumor immune responses. In the past decade, antibodies targeting PD-1/PD-L1 have tremendously altered cancer treatment paradigms. Post-translational modifications have been reported as key regulators of PD-L1 expression. Among these modifications, ubiquitination and deubiquitination are reversible processes that dynamically control protein degradation and stabilization. Deubiquitinating enzymes (DUBs) are responsible for deubiquitination and have emerged as crucial players in tumor growth, progression, and immune evasion. Recently, studies have highlighted the participation of DUBs in deubiquitinating PD-L1 and modulating its expression. Here, we review the recent developments in deubiquitination modifications of PD-L1 and focus on the underlying mechanisms and effects on anti-tumor immunity.
Collapse
Affiliation(s)
- Yao Jiang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Radiation Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kai Hong
- Department of Medical Ultrasound, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yingchao Zhao
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Radiation Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kai Xu
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| |
Collapse
|
19
|
Zheng Z, Wang X, Chen D. Proteasome inhibitor MG132 enhances the sensitivity of human OSCC cells to cisplatin via a ROS/DNA damage/p53 axis. Exp Ther Med 2023; 25:224. [PMID: 37123203 PMCID: PMC10133788 DOI: 10.3892/etm.2023.11924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Accepted: 02/27/2023] [Indexed: 05/02/2023] Open
Abstract
Cis-diamine-dichloroplatinum II (cisplatin, CDDP) is a key chemotherapeutic regimen in the treatment of oral squamous cell carcinoma (OSCC). However, the therapeutic efficacy of cisplatin in OSCC may be hampered by chemoresistance. Therefore, the development of novel combination therapy strategies to overcome the limitations of CDDP is of great importance. The proteasome inhibitor MG132 exhibits anti-cancer properties against various types of cancer. However, our knowledge of its anti-cancer effects in combination with CDDP in OSCC cells remains limited. In the current study, the synergetic effects of MG132 and CDDP were evaluated in the human CAL27 OSCC cell line. CAL27 cells were treated with CDDP alone or in combination with MG132. The results showed that MG132 significantly reduced cell viability in a dose-dependent manner. Additionally, cell viability was significantly reduced in CAL27 cells treated with 0.2 µM MG132 and 2 µM CDDP compared with cells treated with MG132 or CDDP alone. In addition, MG132 significantly enhanced the CDDP-induced generation of intracellular reactive oxygen species and DNA damage in OSCC cells. Furthermore, treatment with CDDP or MG132 alone notably inhibited colony formation and proliferation of OSCC cells. However, co-treatment of OSCC cells with MG132 and CDDP further hampered colony formation and proliferation compared with cells treated with either MG132 or CDDP alone. Finally, in cells co-treated with MG132 and CDDP, the expression of p53 was markedly elevated and the p53-mediated apoptotic pathway was further activated compared with cells treated with MG132 or CDDP alone, as shown by the enhanced cell apoptosis, Bax upregulation, and Bcl-2 downregulation. Overall, the results of the current study support the synergistic anti-cancer effects of a combination of MG132 and CDDP against OSCC, thus suggesting that the combination of MG132 and CDDP may be a promising therapeutic strategy for the management of OSCC.
Collapse
Affiliation(s)
- Zheng Zheng
- Department of Stomatology, The First People's Hospital of Nantong, Affiliated Hospital 2 of Nantong University, Nantong, Jiangsu 226000, P.R. China
| | - Xiang Wang
- Department of Stomatology, The First People's Hospital of Nantong, Affiliated Hospital 2 of Nantong University, Nantong, Jiangsu 226000, P.R. China
- Correspondence to: Dr Donglei Chen or Dr Xiang Wang, Department of Stomatology, The First People's Hospital of Nantong, Affiliated Hospital 2 of Nantong University, 6 Haierxiang Road, Nantong, Jiangsu 226000, P.R. China
| | - Donglei Chen
- Department of Stomatology, The First People's Hospital of Nantong, Affiliated Hospital 2 of Nantong University, Nantong, Jiangsu 226000, P.R. China
- Correspondence to: Dr Donglei Chen or Dr Xiang Wang, Department of Stomatology, The First People's Hospital of Nantong, Affiliated Hospital 2 of Nantong University, 6 Haierxiang Road, Nantong, Jiangsu 226000, P.R. China
| |
Collapse
|
20
|
Li XM, Zhao ZY, Yu X, Xia QD, Zhou P, Wang SG, Wu HL, Hu J. Exploiting E3 ubiquitin ligases to reeducate the tumor microenvironment for cancer therapy. Exp Hematol Oncol 2023; 12:34. [PMID: 36998063 DOI: 10.1186/s40164-023-00394-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 03/07/2023] [Indexed: 03/31/2023] Open
Abstract
AbstractTumor development relies on a complex and aberrant tissue environment in which cancer cells receive the necessary nutrients for growth, survive through immune escape, and acquire mesenchymal properties that mediate invasion and metastasis. Stromal cells and soluble mediators in the tumor microenvironment (TME) exhibit characteristic anti-inflammatory and protumorigenic activities. Ubiquitination, which is an essential and reversible posttranscriptional modification, plays a vital role in modulating the stability, activity and localization of modified proteins through an enzymatic cascade. This review was motivated by accumulating evidence that a series of E3 ligases and deubiquitinases (DUBs) finely target multiple signaling pathways, transcription factors and key enzymes to govern the functions of almost all components of the TME. In this review, we systematically summarize the key substrate proteins involved in the formation of the TME and the E3 ligases and DUBs that recognize these proteins. In addition, several promising techniques for targeted protein degradation by hijacking the intracellular E3 ubiquitin-ligase machinery are introduced.
Collapse
|
21
|
Zhou X, Fu C, Chen X. The role of ubiquitin pathway-mediated regulation of immune checkpoints in cancer immunotherapy. Cancer 2023; 129:1649-1661. [PMID: 36857206 DOI: 10.1002/cncr.34729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 02/09/2023] [Accepted: 02/14/2023] [Indexed: 03/02/2023]
Abstract
With the continuous cognition of the relationship between tumor cells and tumor immune microenvironment, immunotherapy based on the immune checkpoint blockade has achieved great breakthroughs, led to improved clinical outcomes, and prolonged survival for cancer patients in recent years. Nevertheless, the de novo or acquired resistance to immunotherapy has greatly counteracted the efficacy, leading to a 20%-40% overall response rate. Thus, further in-depth understanding of the regulation of the tumor microenvironment and antitumor immunity is urgently warranted. Ubiquitination-mediated protein degradation plays vital roles in protein stabilization, activation, and dynamics as well as in cellular homeostasis modulation. The dysregulated ubiquitination and deubiquitination are closely related to the changes in physiological and pathological processes, which subsequently result in a variety of diseases including cancer. In this review, the authors first summarize the current knowledge about the involvement of the ubiquitin-proteasome system in tumor development with the ubiquitin conjugation-regulated stability of p53, phosphatase and tensin homolog, and Myc protein as examples, then dissect the potential implications of ubiquitination-mediated immune checkpoints degradation in tumor microenvironment and immune responses, and finally discuss the effects of therapeutically targeting the ubiquitin-proteasome pathway on immunotherapy, with the goal of providing deep insights into the exploitation of more precise and effective combinational therapy against cancer.
Collapse
Affiliation(s)
- Xiaoming Zhou
- Cancer Research Institute, the First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China.,Department of Pharmacy, School of Medicine, Hunan Normal University, Changsha, Hunan, China
| | - Chengxiao Fu
- Cancer Research Institute, the First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China.,Department of Pharmacy, the First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Xisha Chen
- Cancer Research Institute, the First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China.,Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| |
Collapse
|
22
|
Yu ZZ, Liu YY, Zhu W, Xiao D, Huang W, Lu SS, Yi H, Zeng T, Feng XP, Yuan L, Qiu JY, Wu D, Wen Q, Zhou JH, Zhuang W, Xiao ZQ. ANXA1-derived peptide for targeting PD-L1 degradation inhibits tumor immune evasion in multiple cancers. J Immunother Cancer 2023; 11:jitc-2022-006345. [PMID: 37001908 PMCID: PMC10069584 DOI: 10.1136/jitc-2022-006345] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/14/2023] [Indexed: 04/03/2023] Open
Abstract
BackgroundImmune checkpoint inhibitors (ICIs) therapy targeting programmed cell death 1 (PD-1)/programmed cell death ligand 1 (PD-L1) shows promising clinical benefits. However, the relatively low response rate highlights the need to develop an alternative strategy to target PD-1/PD-L1 immune checkpoint. Our study focuses on the role and mechanism of annexin A1 (ANXA1)-derived peptide A11 degrading PD-L1 and the effect of A11 on tumor immune evasion in multiple cancers.MethodsBinding of A11 to PD-L1 was identified by biotin pull-down coupled with mass spectrometry analysis. USP7 as PD-L1’s deubiquitinase was found by screening a human deubiquitinase cDNA library. The role and mechanism of A11 competing with USP7 to degrade PD-L1 were analyzed. The capability to enhance the T cell-mediated tumor cell killing activity and antitumor effect of A11 via suppressing tumor immune evasion were investigated. The synergistic antitumor effect of A11 and PD-L1 mAb (monoclonal antibody) via suppressing tumor immune evasion were also studied in mice. The expression and clinical significance of USP7 and PD-L1 in cancer tissues were evaluated by immunohistochemistry.ResultsA11 decreases PD-L1 protein stability and levels by ubiquitin proteasome pathway in breast cancer, lung cancer and melanoma cells. Mechanistically, A11 competes with PD-L1’s deubiquitinase USP7 for binding PD-L1, and then degrades PD-L1 by inhibiting USP7-mediated PD-L1 deubiquitination. Functionally, A11 promotes T cell ability of killing cancer cells in vitro, inhibits tumor immune evasion in mice via increasing the population and activation of CD8+T cells in tumor microenvironment, and A11 and PD-1 mAb possess synergistic antitumor effect in mice. Moreover, expression levels of both USP7 and PD-L1 are significantly higher in breast cancer, non-small cell lung cancer and skin melanoma tissues than those in their corresponding normal tissues and are positively correlated in cancer tissues, and both proteins for predicting efficacy of PD-1 mAb immunotherapy and patient prognosis are superior to individual protein.ConclusionOur results reveal that A11 competes with USP7 to bind and degrade PD-L1 in cancer cells, A11 exhibits obvious antitumor effects and synergistic antitumor activity with PD-1 mAb via inhibiting tumor immune evasion and A11 can serve as an alternative strategy for ICIs therapy in multiple cancers.
Collapse
Affiliation(s)
- Zheng-Zheng Yu
- Department of Pathology, Xiangya Hospital of Central South University, Changsha, Hunan, China
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital of Central South University, Changsha, Hunan, China
- The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital of Central South University, Changsha, Hunan, China
- National Clinical Research Center of Geriatric Disorders, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Yun-Ya Liu
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital of Central South University, Changsha, Hunan, China
- The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital of Central South University, Changsha, Hunan, China
- National Clinical Research Center of Geriatric Disorders, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Wei Zhu
- Department of Pathology, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Ding Xiao
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital of Central South University, Changsha, Hunan, China
- The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Wei Huang
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital of Central South University, Changsha, Hunan, China
- The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Shan-Shan Lu
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital of Central South University, Changsha, Hunan, China
- The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Hong Yi
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital of Central South University, Changsha, Hunan, China
- The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Ting Zeng
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital of Central South University, Changsha, Hunan, China
- The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Xue-Ping Feng
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital of Central South University, Changsha, Hunan, China
- The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Li Yuan
- Department of Nuclear Medicine, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Jie-Ya Qiu
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital of Central South University, Changsha, Hunan, China
- The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Di Wu
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital of Central South University, Changsha, Hunan, China
- The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Qi Wen
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital of Central South University, Changsha, Hunan, China
- The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Jian-Hua Zhou
- Department of Pathology, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Wei Zhuang
- Department of Thoracic Surgery, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Zhi-Qiang Xiao
- Department of Pathology, Xiangya Hospital of Central South University, Changsha, Hunan, China
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital of Central South University, Changsha, Hunan, China
- The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital of Central South University, Changsha, Hunan, China
- National Clinical Research Center of Geriatric Disorders, Xiangya Hospital of Central South University, Changsha, Hunan, China
| |
Collapse
|
23
|
Yu X, Li W, Liu H, Wang X, Coarfa C, Cheng C, Yu X, Zeng Z, Cao Y, Young KH, Li Y. PD-L1 translocation to the plasma membrane enables tumor immune evasion through MIB2 ubiquitination. J Clin Invest 2023; 133:e160456. [PMID: 36719382 PMCID: PMC9888393 DOI: 10.1172/jci160456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 11/30/2022] [Indexed: 02/01/2023] Open
Abstract
Programmed death-ligand 1 (PD-L1), a critical immune checkpoint ligand, is a transmembrane protein synthesized in the endoplasmic reticulum of tumor cells and transported to the plasma membrane to interact with programmed death 1 (PD-1) expressed on T cell surface. This interaction delivers coinhibitory signals to T cells, thereby suppressing their function and allowing evasion of antitumor immunity. Most companion or complementary diagnostic devices for assessing PD-L1 expression levels in tumor cells used in the clinic or in clinical trials require membranous staining. However, the mechanism driving PD-L1 translocation to the plasma membrane after de novo synthesis is poorly understood. Herein, we showed that mind bomb homolog 2 (MIB2) is required for PD-L1 transportation from the trans-Golgi network (TGN) to the plasma membrane of cancer cells. MIB2 deficiency led to fewer PD-L1 proteins on the tumor cell surface and promoted antitumor immunity in mice. Mechanistically, MIB2 catalyzed nonproteolytic K63-linked ubiquitination of PD-L1, facilitating PD-L1 trafficking through Ras-associated binding 8-mediated (RAB8-mediated) exocytosis from the TGN to the plasma membrane, where it bound PD-1 extrinsically to prevent tumor cell killing by T cells. Our findings demonstrate that nonproteolytic ubiquitination of PD-L1 by MIB2 is required for its transportation to the plasma membrane and tumor cell immune evasion.
Collapse
Affiliation(s)
- Xinfang Yu
- Department of Medicine, Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, Texas, USA
| | - Wei Li
- Department of Medicine, Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, Texas, USA
- Department of Radiology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Haidan Liu
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
- Clinical Center for Gene Diagnosis and Therapy, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Xu Wang
- Department of Medicine, Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, Texas, USA
| | - Cristian Coarfa
- Department of Molecular Cell Biology, Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, Texas, USA
| | - Chao Cheng
- Department of Medicine, Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, Texas, USA
| | - Xinlian Yu
- School of Transportation, Southeast University, Nanjing, Jiangsu, China
| | - Zhaoyang Zeng
- Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ya Cao
- Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ken H. Young
- Department of Pathology, Division of Hematopathology, Duke University Medical Center, Durham, North Carolina, USA
| | - Yong Li
- Department of Medicine, Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, Texas, USA
| |
Collapse
|
24
|
Jin S, Kudo Y, Horiguchi T. The Role of Deubiquitinating Enzyme in Head and Neck Squamous Cell Carcinoma. Int J Mol Sci 2022; 24:ijms24010552. [PMID: 36613989 PMCID: PMC9820089 DOI: 10.3390/ijms24010552] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 12/20/2022] [Accepted: 12/24/2022] [Indexed: 12/30/2022] Open
Abstract
Ubiquitination and deubiquitination are two popular ways for the post-translational modification of proteins. These two modifications affect intracellular localization, stability, and function of target proteins. The process of deubiquitination is involved in histone modification, cell cycle regulation, cell differentiation, apoptosis, endocytosis, autophagy, and DNA repair after damage. Moreover, it is involved in the processes of carcinogenesis and cancer development. In this review, we discuss these issues in understanding deubiquitinating enzyme (DUB) function in head and neck squamous cell carcinoma (HNSCC), and their potential therapeutic strategies for HNSCC patients are also discussed.
Collapse
|
25
|
Dai X, Gao Y, Wei W. Post-translational regulations of PD-L1 and PD-1: Mechanisms and opportunities for combined immunotherapy. Semin Cancer Biol 2022; 85:246-252. [PMID: 33831533 PMCID: PMC8490479 DOI: 10.1016/j.semcancer.2021.04.002] [Citation(s) in RCA: 45] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 02/22/2021] [Accepted: 04/01/2021] [Indexed: 12/15/2022]
Abstract
Antibodies targeting programmed cell death protein 1 (PD-1) or its ligand programmed death-ligand 1 (PD-L1) are profoundly changing the methods to treat cancers with long-term clinical benefits. Unlike conventional methods that directly target tumor cells, PD-1/PD-L1 blockade exerts anti-tumor effects largely through reactivating or normalizing cytotoxic T lymphocyte in the tumor microenvironment to combat cancer cells. However, only a small fraction of cancer patients responds well to PD-1/PD-L1 blockade and clinical outcomes have reached a bottleneck without substantial advances. Therefore, better understanding the molecular mechanisms underlying how PD-1/PD-L1 expression is regulated will provide new insights to improve the efficacy of current anti-PD-1/PD-L1 therapy. Here, we provide an update of current progress of PD-L1 and PD-1 post-translational regulations and highlight the mechanism-based combination therapy strategies for a better treatment of human cancer.
Collapse
Affiliation(s)
- Xiaoming Dai
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, 02115, USA
| | - Yang Gao
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, 02115, USA; Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
| | - Wenyi Wei
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, 02115, USA.
| |
Collapse
|
26
|
Zhou S, Zhu J, Xu J, Gu B, Zhao Q, Luo C, Gao Z, Chin YE, Cheng X. Antitumor potential of PD-L1/PD-1 post-translational modifications. Immunol Suppl 2022; 167:471-481. [PMID: 36065492 DOI: 10.1111/imm.13573] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Accepted: 08/31/2022] [Indexed: 11/29/2022]
Abstract
The immune checkpoint programmed death receptor 1 (PD-1) and programmed death ligand 1 (PD-L1) are biologically important immunosuppressive molecules, and the PD-L1/PD-1-mediated signaling pathway is currently considered one of the main mechanisms of tumor escape immune surveillance. PD-L1 is highly expressed on the cytomembrane of tumor cell and binds to PD-1 receptor of activated T cells. This interaction activates PD-L1/PD-1 downstream signal transduction, inhibiting T cells anti-tumor activity. Therefore, inhibitors of PD-L1/PD-1 activation, showing significant efficacy in some types of tumors, have been widely approved in clinical tumor therapy. Recent research on PD-L1/PD-1 signaling pathway regulation has shown post-translational modifications (PTMs) form of PD-L1 or PD-1, including glycosylation, ubiquitination, phosphorylation, and acetylation, which may play an important role in PD-L1/PD-1 signaling pathway regulation and anti-tumor function of T cells. In this review, we focused on PTMs of PD-L1/PD-1 research and potential applications in tumor immunotherapy. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Shimeng Zhou
- Jiangsu Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou, P. R. China
| | - Jinfeng Zhu
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X) and Collaborative Innovation Centre of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, 199 Renai Road, Suzhou, China
| | - Jingwei Xu
- Department of Cardiothoralic Surgery, Suzhou Municipal Hospital Institution, Suzhou, P. R. China
| | - Bingzi Gu
- Jiangsu Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou, P. R. China
| | - Qiao Zhao
- Jiangsu Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou, P. R. China
| | - Congzhou Luo
- Jiangsu Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou, P. R. China
| | - Zhoufeng Gao
- Jiangsu Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou, P. R. China
| | - Y Eugene Chin
- Jiangsu Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou, P. R. China
| | - Xiaju Cheng
- Jiangsu Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou, P. R. China.,State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X) and Collaborative Innovation Centre of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, 199 Renai Road, Suzhou, China
| |
Collapse
|
27
|
Zhang Z, Liu W, Bao X, Sun T, Wang J, Li M, Liu C. USP39 facilitates breast cancer cell proliferation through stabilization of FOXM1. Am J Cancer Res 2022; 12:3644-3661. [PMID: 36119839 PMCID: PMC9442023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 07/09/2022] [Indexed: 06/15/2023] Open
Abstract
Deubiquitinating enzyme dysregulation has been linked to the development of a variety of human malignancies, including breast cancer. However, the exact involvement of the deubiquitinating enzyme USP39 in the progression of breast cancer is yet unknown. Cell viability and colony formation analysis was used to assess the effects of USP39 knockdown on breast cancer cells in this study. The interaction between USP39 and FOXM1 was investigated using co-immunoprecipitation (co-IP) and in vitro deubiquitination analysis. The expression of USP39 and FOXM1 in breast cancer tissues was studied using the TCGA database. According to our findings, USP39 deubiquitinates and stabilizes FOXM1, promoting breast cancer cell proliferation, colony formation, and tumor growth in vivo. Furthermore, elevated USP39 expression lowers FOXM1 ubiquitination, resulting in increased transcriptional activity. In addition, the high expression of USP39 reduces the ubiquitination of FOXM1, thereby enhancing the transcriptional activity of FOXM1 and regulating the expression of downstream genes Cdc25b and Plk1. USP39 is positively correlated with the expression level of FOXM1 in breast cancer cells. In general, our research revealed the USP39-FOXM1 axis as a critical driver of breast cancer cell proliferation and provided a theoretical foundation for targeting the USP39-FOXM1 axis for pancreatic cancer treatment.
Collapse
Affiliation(s)
- Zhenwang Zhang
- Medicine Research Institute/Hubei Key Laboratory of Diabetes and Angiopathy, Xianning Medical College, Hubei University of Science and TechnologyXianning 437000, Hubei, China
- Hubei University of Science and Technology of Medicine, Xianning Medical CollegeXianning 437000, Hubei, China
| | - Wu Liu
- Medicine Research Institute/Hubei Key Laboratory of Diabetes and Angiopathy, Xianning Medical College, Hubei University of Science and TechnologyXianning 437000, Hubei, China
- Hubei University of Science and Technology of Medicine, Xianning Medical CollegeXianning 437000, Hubei, China
| | - Xiajun Bao
- Medicine Research Institute/Hubei Key Laboratory of Diabetes and Angiopathy, Xianning Medical College, Hubei University of Science and TechnologyXianning 437000, Hubei, China
- Hubei University of Science and Technology of Medicine, Xianning Medical CollegeXianning 437000, Hubei, China
| | - Tian Sun
- Medicine Research Institute/Hubei Key Laboratory of Diabetes and Angiopathy, Xianning Medical College, Hubei University of Science and TechnologyXianning 437000, Hubei, China
- Hubei University of Science and Technology of Medicine, Xianning Medical CollegeXianning 437000, Hubei, China
| | - Jiawei Wang
- Medicine Research Institute/Hubei Key Laboratory of Diabetes and Angiopathy, Xianning Medical College, Hubei University of Science and TechnologyXianning 437000, Hubei, China
- Hubei University of Science and Technology of Medicine, Xianning Medical CollegeXianning 437000, Hubei, China
| | - Mengxi Li
- Science and Technology Industry Management Office, Hubei University of Science and TechnologyXianning 437000, Hubei, China
| | - Chao Liu
- Medicine Research Institute/Hubei Key Laboratory of Diabetes and Angiopathy, Xianning Medical College, Hubei University of Science and TechnologyXianning 437000, Hubei, China
- Hubei University of Science and Technology of Medicine, Xianning Medical CollegeXianning 437000, Hubei, China
| |
Collapse
|
28
|
Shen DD, Bi YP, Pang JR, Zhao LJ, Zhao LF, Gao Y, Wang B, Liu HM, Liu Y, Wang N, Zheng YC, Liu HM. Generation, secretion and degradation of cancer immunotherapy target PD-L1. Cell Mol Life Sci 2022; 79:413. [PMID: 35819633 PMCID: PMC11073444 DOI: 10.1007/s00018-022-04431-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 06/06/2022] [Accepted: 06/14/2022] [Indexed: 02/06/2023]
Abstract
Cancer immunotherapy is a rapidly developing and effective method for the treatment of a variety of malignancies in recent years. As a significant immune checkpoint, programmed cell death 1 ligand 1 (PD-L1) and its receptor programmed cell death protein 1 (PD-1) play the most significant role in cancer immune escape and cancer immunotherapy. Though PD-L1 have become an important target for drug development and there have been various approved drugs and clinic trials targeting it, and various clinical response rate and adverse reactions prevent many patients from benefiting from it. In recent years, combination trials have become the main direction of PD-1/PD-L1 antibodies development. Here, we summarized PD-L1 biofunctions and key roles in various cancers along with the development of PD-L1 inhibitors. The regulators that are involved in controlling PD-L1 expression including post-translational modification, mRNA level regulation as well as degradation and exosome secretory pathway of PD-L1 were focused. This systematic summary may provide comprehensive understanding of different regulations on PD-L1 as well as a broad prospect for the search of the important regulator of PD-L1. The regulatory factors of PD-L1 can be potential targets for immunotherapy and increase strategies of immunotherapy in combination.
Collapse
Affiliation(s)
- Dan-Dan Shen
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou Key Laboratory of Endometrial Disease Prevention and Treatment Zhengzhou China, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China; Key Laboratory of Henan Province for Drug Quality and Evaluation; Institute of Drug Discovery and Development; School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, 450052, Henan, China
| | - Ya-Ping Bi
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China; Key Laboratory of Henan Province for Drug Quality and Evaluation; Institute of Drug Discovery and Development; School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, 450052, Henan, China
| | - Jing-Ru Pang
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China; Key Laboratory of Henan Province for Drug Quality and Evaluation; Institute of Drug Discovery and Development; School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, 450052, Henan, China
| | - Li-Juan Zhao
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China; Key Laboratory of Henan Province for Drug Quality and Evaluation; Institute of Drug Discovery and Development; School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, 450052, Henan, China
- State Key Laboratory of Esophageal Cancer Prevention & Treatment; Academy of Medical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, 450052, Henan, China
| | - Long-Fei Zhao
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China; Key Laboratory of Henan Province for Drug Quality and Evaluation; Institute of Drug Discovery and Development; School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, 450052, Henan, China
| | - Ya Gao
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China; Key Laboratory of Henan Province for Drug Quality and Evaluation; Institute of Drug Discovery and Development; School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, 450052, Henan, China
| | - Bo Wang
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China; Key Laboratory of Henan Province for Drug Quality and Evaluation; Institute of Drug Discovery and Development; School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, 450052, Henan, China
| | - Hui-Min Liu
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China; Key Laboratory of Henan Province for Drug Quality and Evaluation; Institute of Drug Discovery and Development; School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, 450052, Henan, China
| | - Ying Liu
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Ning Wang
- The School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China
| | - Yi-Chao Zheng
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou Key Laboratory of Endometrial Disease Prevention and Treatment Zhengzhou China, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China.
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China; Key Laboratory of Henan Province for Drug Quality and Evaluation; Institute of Drug Discovery and Development; School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, 450052, Henan, China.
- State Key Laboratory of Esophageal Cancer Prevention & Treatment; Academy of Medical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, 450052, Henan, China.
| | - Hong-Min Liu
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China; Key Laboratory of Henan Province for Drug Quality and Evaluation; Institute of Drug Discovery and Development; School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, 450052, Henan, China.
- State Key Laboratory of Esophageal Cancer Prevention & Treatment; Academy of Medical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, 450052, Henan, China.
| |
Collapse
|
29
|
Li K, Wang Q, Bian H, Chen Z, He H, Zhao X, Gong P. Comprehensive Analysis Reveals USP45 as a Novel Putative Oncogene in Pan-Cancer. Front Mol Biosci 2022; 9:886904. [PMID: 35836933 PMCID: PMC9273912 DOI: 10.3389/fmolb.2022.886904] [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: 04/04/2022] [Accepted: 06/06/2022] [Indexed: 11/17/2022] Open
Abstract
Background: Deubiquitinating enzymes specifically removes ubiquitin molecules from ubiquitin-tagged target proteins, thereby inhibiting the degradation of target proteins and playing an important role in tumor. However, the mechanism of deubiquitinating enzyme USP45 in tumors remains unclear. Methods: Based on the RNA-seq data of tissues and cell lines in The Cancer Genome Atlas (TCGA) database, GTEx and CCLE database, the pan-cancer analysis of USP45 expression and survival outcome were performed using R software and Kaplan-Meier Plotter. The structural variants, gene mutations and gene copy number alteration of USP45 were analyzed using the TCGA Pan-Cancer Atlas Studies dataset in the cBioPortal database. The relationships between USP45 and mRNA methylation, tumor heterogeneity, tumor stemness, and tumor immunity were performed by Sangerbox platform and TIMER2.0 using Pearson correlation analysis. Through the ENCORI database and string database, we constructed the ceRNA regulatory mechanism and protein-protein interaction network for USP45. Based on the RNA-seq data in TCGA and GTEx databases, we also constructed the downstream regulatory network for USP45 using the Limma and ClusterProfiler packages of R software. At last, the protein expression levels of USP45 were detected by immunohistochemistry in tumor tissue microarrays. Results: USP45 is upregulated in most types of tumors and negatively correlated with the overall survival and recurrence-free survival of patient. Furthermore, the structural variation, gene mutations and gene copy number variation of USP45 were identified in different types of tumors. The pan-cancer analysis showed that USP45 was closely related to mRNA methylation, tumor heterogeneity and tumor stemness. In most types of tumors, the expression of USP45 was positively correlated with many immune checkpoint molecules and immune regulators such as PD-L1, while negatively correlated with the infiltration levels of NK cells, Th1 cells, macrophages, and dendritic cells in the tumor microenvironment. Finally, we constructed the ceRNA regulatory network, protein-protein interaction network and downstream regulatory network for USP45 in different types of tumors. Conclusion: Our study firstly explored the putative oncogenic role of USP45 in pan-cancer, and provided insights for further investigation of USP45.
Collapse
Affiliation(s)
- Kai Li
- Zhang Zhongjing College of Chinese Medicine, Nanyang Institute of Technology, Nanyang, China
- Henan Key Laboratory of Zhang Zhongjing Formulae and Herbs for Immunoregulation, Nanyang Institute of Technology, Nanyang, China
| | - Qian Wang
- Zhang Zhongjing College of Chinese Medicine, Nanyang Institute of Technology, Nanyang, China
- Henan Key Laboratory of Zhang Zhongjing Formulae and Herbs for Immunoregulation, Nanyang Institute of Technology, Nanyang, China
| | - Hua Bian
- Zhang Zhongjing College of Chinese Medicine, Nanyang Institute of Technology, Nanyang, China
- Henan Key Laboratory of Zhang Zhongjing Formulae and Herbs for Immunoregulation, Nanyang Institute of Technology, Nanyang, China
| | - Zhiguo Chen
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China
| | - Haifa He
- Department of Pathology, Central Hospital of Nanyang City, Nanyang, China
| | - Xulin Zhao
- Department of Oncology, The First People’s Hospital of Nanyang, Nanyang, China
| | - Pengju Gong
- The University of Texas MD Anderson Cancer Center UThealth Graduate School of Biomedical Sciences, Houston, TX, United States
- *Correspondence: Pengju Gong,
| |
Collapse
|
30
|
Zhang X, Meng T, Cui S, Liu D, Pang Q, Wang P. Roles of ubiquitination in the crosstalk between tumors and the tumor microenvironment (Review). Int J Oncol 2022; 61:84. [PMID: 35616129 PMCID: PMC9170352 DOI: 10.3892/ijo.2022.5374] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 04/27/2022] [Indexed: 11/06/2022] Open
Abstract
The interaction between a tumor and the tumor microenvironment (TME) plays a key role in tumorigenesis and tumor progression. Ubiquitination, a crucial post-translational modification for regulating protein degradation and turnover, plays a role in regulating the crosstalk between a tumor and the TME. Thus, identifying the roles of ubiquitination in the process may assist researchers to investigate the mechanisms underlying tumorigenesis and tumor progression. In the present review article, new insights into the substrates for ubiquitination that are involved in the regulation of hypoxic environments, angiogenesis, chronic inflammation-mediated tumor formation, and the function of cancer-associated fibroblasts and infiltrating immune cells (tumor-associated macrophages, T-cells, myeloid-derived suppressor cells, dendritic cells, and natural killer cells) are summarized. In addition, the potential targets of the ubiquitination proteasome system within the TME for cancer therapy and their therapeutic effects are reviewed and discussed.
Collapse
Affiliation(s)
- Xiuzhen Zhang
- Anti‑aging and Regenerative Medicine Research Institution, School of Life Sciences and Medicine, Shandong University of Technology, Zibo, Shandong 255000, P.R. China
| | - Tong Meng
- Tongji University Cancer Center, Shanghai Tenth People's Hospital of Tongji University, School of Medicine, Tongji University, Shanghai 200092, P.R. China
| | - Shuaishuai Cui
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo, Shandong 255000, P.R. China
| | - Dongwu Liu
- Anti‑aging and Regenerative Medicine Research Institution, School of Life Sciences and Medicine, Shandong University of Technology, Zibo, Shandong 255000, P.R. China
| | - Qiuxiang Pang
- Anti‑aging and Regenerative Medicine Research Institution, School of Life Sciences and Medicine, Shandong University of Technology, Zibo, Shandong 255000, P.R. China
| | - Ping Wang
- Tongji University Cancer Center, Shanghai Tenth People's Hospital of Tongji University, School of Medicine, Tongji University, Shanghai 200092, P.R. China
| |
Collapse
|
31
|
Fan Z, Wu C, Chen M, Jiang Y, Wu Y, Mao R, Fan Y. The generation of PD-L1 and PD-L2 in cancer cells: From nuclear chromatin reorganization to extracellular presentation. Acta Pharm Sin B 2022; 12:1041-1053. [PMID: 35530130 PMCID: PMC9069407 DOI: 10.1016/j.apsb.2021.09.010] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/27/2021] [Accepted: 08/25/2021] [Indexed: 12/16/2022] Open
Abstract
The immune checkpoint blockade (ICB) targeting on PD-1/PD-L1 has shown remarkable promise in treating cancers. However, the low response rate and frequently observed severe side effects limit its broad benefits. It is partially due to less understanding of the biological regulation of PD-L1. Here, we systematically and comprehensively summarized the regulation of PD-L1 from nuclear chromatin reorganization to extracellular presentation. In PD-L1 and PD-L2 highly expressed cancer cells, a new TAD (topologically associating domain) (chr9: 5,400,000-5,600,000) around CD274 and CD273 was discovered, which includes a reported super-enhancer to drive synchronous transcription of PD-L1 and PD-L2. The re-shaped TAD allows transcription factors such as STAT3 and IRF1 recruit to PD-L1 locus in order to guide the expression of PD-L1. After transcription, the PD-L1 is tightly regulated by miRNAs and RNA-binding proteins via the long 3'UTR. At translational level, PD-L1 protein and its membrane presentation are tightly regulated by post-translational modification such as glycosylation and ubiquitination. In addition, PD-L1 can be secreted via exosome to systematically inhibit immune response. Therefore, fully dissecting the regulation of PD-L1/PD-L2 and thoroughly detecting PD-L1/PD-L2 as well as their regulatory networks will bring more insights in ICB and ICB-based combinational therapy.
Collapse
Key Words
- 3′-UTR, 3′-untranslated region
- ADAM17, a disintegrin and metalloprotease 17
- APCs, antigen-presenting cells
- AREs, adenylate and uridylate (AU)-rich elements
- ATF3, activating transcription factor 3
- CD273/274, cluster of differentiation 273/274
- CDK4, cyclin-dependent kinase 4
- CMTM6, CKLF like MARVEL transmembrane domain containing 6
- CSN5, COP9 signalosome subunit 5
- CTLs, cytotoxic T lymphocytes
- EMT, epithelial to mesenchymal transition
- EpCAM, epithelial cell adhesion molecule
- Exosome
- FACS, fluorescence-activated cell sorting
- GSDMC, Gasdermin C
- GSK3β, glycogen synthase kinase 3 beta
- HSF1, heat shock transcription factor 1
- Hi-C, high throughput chromosome conformation capture
- ICB, immune checkpoint blockade
- IFN, interferon
- IL-6, interleukin 6
- IRF1, interferon regulatory factor 1
- Immune checkpoint blockade
- JAK, Janus kinase 1
- NFκB, nuclear factor kappa B
- NSCLC, non-small cell lung cancer
- OTUB1, OTU deubiquitinase, ubiquitin aldehyde binding 1
- PARP1, poly(ADP-ribose) polymerase 1
- PD-1, programmed cell death-1
- PD-L1
- PD-L1, programmed death-ligand 1
- PD-L2
- PD-L2, programmed death ligand 2
- Post-transcriptional regulation
- Post-translational regulation
- SP1, specificity protein 1
- SPOP, speckle-type POZ protein
- STAG2, stromal antigen 2
- STAT3, signal transducer and activator of transcription 3
- T2D, type 2 diabetes
- TADs, topologically associating domains
- TFEB, transcription factor EB
- TFs, transcription factors
- TNFα, tumor necrosis factor-alpha
- TTP, tristetraprolin
- Topologically associating domain
- Transcription
- UCHL1, ubiquitin carboxy-terminal hydrolase L1
- USP22, ubiquitin specific peptidase 22
- dMMR, deficient DNA mismatch repair
- irAEs, immune related adverse events
Collapse
Affiliation(s)
- Zhiwei Fan
- Department of Pathogenic Biology, School of Medicine, Nantong University, Nantong 226001, China
- Laboratory of Medical Science, School of Medicine, Nantong University, Nantong 226001, China
| | - Changyue Wu
- Laboratory of Medical Science, School of Medicine, Nantong University, Nantong 226001, China
- Department of Dermatology, Affiliated Hospital of Nantong University, Nantong University, Nantong 226001, China
| | - Miaomiao Chen
- Laboratory of Medical Science, School of Medicine, Nantong University, Nantong 226001, China
| | - Yongying Jiang
- Department of Pathophysiology, School of Medicine, Nantong University, Nantong 226001, China
| | - Yuanyuan Wu
- Laboratory of Medical Science, School of Medicine, Nantong University, Nantong 226001, China
| | - Renfang Mao
- Department of Pathophysiology, School of Medicine, Nantong University, Nantong 226001, China
| | - Yihui Fan
- Department of Pathogenic Biology, School of Medicine, Nantong University, Nantong 226001, China
- Laboratory of Medical Science, School of Medicine, Nantong University, Nantong 226001, China
| |
Collapse
|
32
|
Yamaguchi H, Hsu JM, Yang WH, Hung MC. Mechanisms regulating PD-L1 expression in cancers and associated opportunities for novel small-molecule therapeutics. Nat Rev Clin Oncol 2022; 19:287-305. [DOI: 10.1038/s41571-022-00601-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/06/2022] [Indexed: 02/06/2023]
|
33
|
Ding P, Ma Z, Fan Y, Feng Y, Shao C, Pan M, Zhang Y, Huang D, Han J, Hu Y, Yan X. Emerging role of ubiquitination/deubiquitination modification of PD-1/PD-L1 in cancer immunotherapy. Genes Dis 2022. [DOI: 10.1016/j.gendis.2022.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
|
34
|
Kyrodimos E, Chrysovergis A, Mastronikolis N, Tsiambas E, Manaios L, Roukas D, Pantos P, Ragos V, Peschos D, Papanikolaou V. Impact of Ubiquitination Signaling Pathway Modifications on Oral Carcinoma. CANCER DIAGNOSIS & PROGNOSIS 2022; 2:1-6. [PMID: 35399999 DOI: 10.21873/cdp.10069] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 11/19/2021] [Indexed: 12/12/2022]
Abstract
Among intra-cellular homeostasis mechanisms, ubiquitination plays a critical role in protein metabolism regulation by degrading proteins via activating a broad spectrum of ubiquitin chains. In fact, ubiquitination and sumoylation signaling pathways are characterized by increased complexity regarding the molecules and their interactions. The Ubiquitin-Proteasome System (Ub-PS) recognizes and targets a broad spectrum of protein substrates. Ubiquitin conjugation modifies each substrate protein determining its biochemical fate (degradation). A major functional activity of Ub-PS is autophagy mechanism regulation. Interestingly, Ub-PS promotes all stages of bulk autophagy (initiation, execution, and termination). Autophagy is a crucial catabolic process that provides protein degradation and for this reason the interaction with Ub-PS is crucial. Furthermore, ubiquitination controls and regulates specific types of protein targets. Ub-PS is also involved in oxidative cellular stress and DNA damage response. Additionally, the functional role of Ub-PS in ribosome machinery regulation seems to be crucial. Concerning carcinogenesis, Ub-PS is involved in malignant disease development and progression by negatively affecting the corresponding TGF-B-, MEEK/MAPK/ERK-JNK- dependent signaling pathways. In the current review article, we describe the role of Ub-PS biochemical modifications and alterations in oral squamous cell carcinoma (OSCC).
Collapse
Affiliation(s)
- Efthimios Kyrodimos
- 1st ENT Department, Hippocration Hospital, National and Kapodistrian University, Athens, Greece
| | - Aristeidis Chrysovergis
- 1st ENT Department, Hippocration Hospital, National and Kapodistrian University, Athens, Greece
| | | | - Evangelos Tsiambas
- Department of Cytology, Molecular Unit, 417 Veterans Army Hospital (NIMTS), Athens, Greece.,Department of Maxillofacial, Medical School, University of Ioannina, Ioannina, Greece
| | | | - Dimitrios Roukas
- Department of Psychiatry, 417 Veterans Army Hospital (NIMTS), Athens, Greece
| | - Pavlos Pantos
- 1st ENT Department, Hippocration Hospital, National and Kapodistrian University, Athens, Greece
| | - Vasileios Ragos
- Department of Maxillofacial, Medical School, University of Ioannina, Ioannina, Greece
| | - Dimitrios Peschos
- Department of Physiology, Medical School, University of Ioannina, Ioannina, Greece
| | - Vasileios Papanikolaou
- 1st ENT Department, Hippocration Hospital, National and Kapodistrian University, Athens, Greece
| |
Collapse
|
35
|
Tyagi A, Haq S, Ramakrishna S. Redox regulation of DUBs and its therapeutic implications in cancer. Redox Biol 2021; 48:102194. [PMID: 34814083 PMCID: PMC8608616 DOI: 10.1016/j.redox.2021.102194] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 11/19/2021] [Indexed: 02/06/2023] Open
Abstract
Reactive oxygen species (ROS) act as a double-edged sword in cancer, where low levels of ROS are beneficial but excessive accumulation leads to cancer progression. Elevated levels of ROS in cancer are counteracted by the antioxidant defense system. An imbalance between ROS generation and the antioxidant system alters gene expression and cellular signaling, leading to cancer progression or death. Post-translational modifications, such as ubiquitination, phosphorylation, and SUMOylation, play a critical role in the maintenance of ROS homeostasis by controlling ROS production and clearance. Recent evidence suggests that deubiquitinating enzymes (DUBs)-mediated ubiquitin removal from substrates is regulated by ROS. ROS-mediated oxidation of the catalytic cysteine (Cys) of DUBs, leading to their reversible inactivation, has emerged as a key mechanism regulating DUB-controlled cellular events. A better understanding of the mechanism by which DUBs are susceptible to ROS and exploring the ways to utilize ROS to pharmacologically modulate DUB-mediated signaling pathways might provide new insight for anticancer therapeutics. This review assesses the recent findings regarding ROS-mediated signaling in cancers, emphasizes DUB regulation by oxidation, highlights the relevant recent findings, and proposes directions of future research based on the ROS-induced modifications of DUB activity.
Collapse
Affiliation(s)
- Apoorvi Tyagi
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, 04763, South Korea
| | - Saba Haq
- Department of Life Science, College of Natural Sciences, Hanyang University, Seoul, 04763, South Korea
| | - Suresh Ramakrishna
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, 04763, South Korea; College of Medicine, Hanyang University, Seoul, 04763, South Korea.
| |
Collapse
|
36
|
Yu X, Li W, Young KH, Li Y. Posttranslational Modifications in PD-L1 Turnover and Function: From Cradle to Grave. Biomedicines 2021; 9:1702. [PMID: 34829931 PMCID: PMC8615371 DOI: 10.3390/biomedicines9111702] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Revised: 11/09/2021] [Accepted: 11/11/2021] [Indexed: 12/14/2022] Open
Abstract
Programmed death-ligand 1 (PD-L1) is one of the most classic immune checkpoint molecules. Cancer cells express PD-L1 to inhibit the activity of effector T cells' cytotoxicity through programmed death 1 (PD-1) engagement in exposure to inflammatory cytokines. PD-L1 expression levels on cancer cells might affect the clinical response to anti-PD-1/PD-L1 therapies. Hence, understanding molecular mechanisms for regulating PD-L1 expression is essential for improving the clinical response rate and efficacy of PD-1/PD-L1 blockade. Posttranslational modifications (PTMs), including phosphorylation, glycosylation, ubiquitination, and acetylation, regulate PD-L1 stability, cellular translocation, and interaction with its receptor. A coordinated positive and negative regulation via PTMs is required to ensure the balance and function of the PD-L1 protein. In this review, we primarily focus on the roles of PTMs in PD-L1 expression, trafficking, and antitumor immune response. We also discuss the implication of PTMs in anti-PD-1/PD-L1 therapies.
Collapse
Affiliation(s)
- Xinfang Yu
- Section of Epidemiology and Population Science, Department of Medicine, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA; (X.Y.); (W.L.)
| | - Wei Li
- Section of Epidemiology and Population Science, Department of Medicine, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA; (X.Y.); (W.L.)
| | - Ken H. Young
- Hematopathology Division, Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA;
| | - Yong Li
- Section of Epidemiology and Population Science, Department of Medicine, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA; (X.Y.); (W.L.)
| |
Collapse
|
37
|
Gavali S, Liu J, Li X, Paolino M. Ubiquitination in T-Cell Activation and Checkpoint Inhibition: New Avenues for Targeted Cancer Immunotherapy. Int J Mol Sci 2021; 22:10800. [PMID: 34639141 PMCID: PMC8509743 DOI: 10.3390/ijms221910800] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 09/27/2021] [Accepted: 09/28/2021] [Indexed: 12/15/2022] Open
Abstract
The advent of T-cell-based immunotherapy has remarkably transformed cancer patient treatment. Despite their success, the currently approved immunotherapeutic protocols still encounter limitations, cause toxicity, and give disparate patient outcomes. Thus, a deeper understanding of the molecular mechanisms of T-cell activation and inhibition is much needed to rationally expand targets and possibilities to improve immunotherapies. Protein ubiquitination downstream of immune signaling pathways is essential to fine-tune virtually all immune responses, in particular, the positive and negative regulation of T-cell activation. Numerous studies have demonstrated that deregulation of ubiquitin-dependent pathways can significantly alter T-cell activation and enhance antitumor responses. Consequently, researchers in academia and industry are actively developing technologies to selectively exploit ubiquitin-related enzymes for cancer therapeutics. In this review, we discuss the molecular and functional roles of ubiquitination in key T-cell activation and checkpoint inhibitory pathways to highlight the vast possibilities that targeting ubiquitination offers for advancing T-cell-based immunotherapies.
Collapse
Affiliation(s)
| | | | | | - Magdalena Paolino
- Center for Molecular Medicine, Department of Medicine Solna, Karolinska Institutet, Karolinska University Hospital Solna, 17176 Solna, Sweden; (S.G.); (J.L.); (X.L.)
| |
Collapse
|
38
|
Wudtiwai B, Makeudom A, Krisanaprakornkit S, Pothacharoen P, Kongtawelert P. Anticancer Activities of Hesperidin via Suppression of Up-Regulated Programmed Death-Ligand 1 Expression in Oral Cancer Cells. Molecules 2021; 26:molecules26175345. [PMID: 34500779 PMCID: PMC8434411 DOI: 10.3390/molecules26175345] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 08/22/2021] [Accepted: 08/24/2021] [Indexed: 01/22/2023] Open
Abstract
Up-regulated expression of programmed death-ligand 1 (PD-L1) by interferon-gamma (IFN-γ) has been associated with promotion of cancer cell survival and tumor cell escape from anti-tumor immunity. Therefore, a blockade of PD-L1 expression can potentially be used as a molecular target for cancer therapy. The aim of this study was to investigate whether suppression of IFN-γ induced PD-L1 expression in two oral cancer cell lines, HN6 and HN15, by hesperidin effectively decreased cell proliferation and migration. Further, our objective was to elucidate the involvement of the signal transducer and activator of transcription 1 (STAT1) and STAT3 in the inhibition of induced PD-L1 expression by hesperidin. Our findings indicate that IFN-γ induced expression of PD-L1 protein in HN6 and HN15 via phosphorylation of STAT1 and STAT3 and that hesperidin significantly reduced that induction through suppression of phosphorylated STAT1 and STAT3 in both cell lines. Moreover, hesperidin also significantly decreased the viability, proliferation, migration, and invasion of both cell lines. In conclusion, hesperidin exerted anticancer effects against oral cancer cells through the suppression of PD-L1 expression via inactivation of the STAT1 and STAT3 signaling molecules. The findings of this study support the use of hesperidin as a potential adjunctive treatment for oral cancer.
Collapse
Affiliation(s)
- Benjawan Wudtiwai
- Thailand Excellence Center for Tissue Engineering and Stem Cells, Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (B.W.); (P.P.)
| | - Anupong Makeudom
- Center of Excellence in Oral and Maxillofacial Biology, Department of Oral Biology and Diagnostic Sciences, Faculty of Dentistry, Chiang Mai University, Chiang Mai 50200, Thailand; (A.M.); (S.K.)
- School of Dentistry, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Suttichai Krisanaprakornkit
- Center of Excellence in Oral and Maxillofacial Biology, Department of Oral Biology and Diagnostic Sciences, Faculty of Dentistry, Chiang Mai University, Chiang Mai 50200, Thailand; (A.M.); (S.K.)
| | - Peraphan Pothacharoen
- Thailand Excellence Center for Tissue Engineering and Stem Cells, Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (B.W.); (P.P.)
| | - Prachya Kongtawelert
- Thailand Excellence Center for Tissue Engineering and Stem Cells, Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (B.W.); (P.P.)
- Correspondence:
| |
Collapse
|
39
|
Hu X, Lin Z, Wang Z, Zhou Q. Emerging role of PD-L1 modification in cancer immunotherapy. Am J Cancer Res 2021; 11:3832-3840. [PMID: 34522452 PMCID: PMC8414388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 06/07/2021] [Indexed: 06/13/2023] Open
Abstract
Accumulating evidence demonstrates that the expression levels of programmed cell death protein 1 (PD-1) and programmed death ligand 1 (PD-L1) are regulated at the various levels, including transcription, post-transcriptional modification and post-translational modifications (PTMs). The PTMs of PD-1/PD-L1 contain phosphorylation, ubiquitination, methylation, glycosylation and palmitoylation. Recently, PD-L1 was reported to be acetylated at Lys263 site by p300 and was deacetylated by histone deacetylase 2 (HDAC2). Acetylation of PD-L1 prevented its translocation to the nucleus and led to a reduction of the nuclear portion of PD-L1, resulting in evading immune surveillance of tumor cells. In this review article, we briefly describe the PTMs of PD-1/PD-L1 and mainly summarize the novel findings of PD-L1 acetylation in tumor cells. Moreover, we discuss the associations of PD-L1 acetylation and ubiquitination, phosphorylation and methylation. Furthermore, we highlight that targeting acetylation of PD-L1 by HDAC inhibitors might be useful for enhancing tumor immunotherapy.
Collapse
Affiliation(s)
- Xiaoli Hu
- Department of Gynecology, The First Affiliated Hospital of Wenzhou Medical UniversityWenzhou 325027, Zhejiang, China
| | - Zixia Lin
- Department of Gynecology, The First Affiliated Hospital of Wenzhou Medical UniversityWenzhou 325027, Zhejiang, China
| | - Zhiwei Wang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical UniversityWenzhou 325027, Zhejiang, China
| | - Qiangyong Zhou
- Department of Gynecology, The First Affiliated Hospital of Wenzhou Medical UniversityWenzhou 325027, Zhejiang, China
| |
Collapse
|
40
|
Zhang H, Dai Z, Wu W, Wang Z, Zhang N, Zhang L, Zeng WJ, Liu Z, Cheng Q. Regulatory mechanisms of immune checkpoints PD-L1 and CTLA-4 in cancer. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2021; 40:184. [PMID: 34088360 PMCID: PMC8178863 DOI: 10.1186/s13046-021-01987-7] [Citation(s) in RCA: 221] [Impact Index Per Article: 73.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 05/17/2021] [Indexed: 02/01/2023]
Abstract
The cytotoxic T-lymphocyte-associated antigen 4 (CTLA-4)/B7 and programmed death 1 (PD-1)/ programmed cell death-ligand 1 (PD-L1) are two most representative immune checkpoint pathways, which negatively regulate T cell immune function during different phases of T-cell activation. Inhibitors targeting CTLA-4/B7 and PD1/PD-L1 pathways have revolutionized immunotherapies for numerous cancer types. Although the combined anti-CTLA-4/B7 and anti-PD1/PD-L1 therapy has demonstrated promising clinical efficacy, only a small percentage of patients receiving anti-CTLA-4/B7 or anti-PD1/PD-L1 therapy experienced prolonged survival. Regulation of the expression of PD-L1 and CTLA-4 significantly impacts the treatment effect. Understanding the in-depth mechanisms and interplays of PD-L1 and CTLA-4 could help identify patients with better immunotherapy responses and promote their clinical care. In this review, regulation of PD-L1 and CTLA-4 is discussed at the levels of DNA, RNA, and proteins, as well as indirect regulation of biomarkers, localization within the cell, and drugs. Specifically, some potential drugs have been developed to regulate PD-L1 and CTLA-4 expressions with high efficiency.
Collapse
Affiliation(s)
- Hao Zhang
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
| | - Ziyu Dai
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
| | - Wantao Wu
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, China
| | - Zeyu Wang
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
| | - Nan Zhang
- One-third Lab, College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China
| | - Liyang Zhang
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
| | - Wen-Jing Zeng
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, China
| | - Zhixiong Liu
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China. .,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China.
| | - Quan Cheng
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China. .,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China.
| |
Collapse
|
41
|
Ubiquitination and Deubiquitination in Oral Disease. Int J Mol Sci 2021; 22:ijms22115488. [PMID: 34070986 PMCID: PMC8197098 DOI: 10.3390/ijms22115488] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 05/15/2021] [Accepted: 05/18/2021] [Indexed: 01/07/2023] Open
Abstract
Oral health is an integral part of the general health and well-being of individuals. The presence of oral disease is potentially indicative of a number of systemic diseases and may contribute to their early diagnosis and treatment. The ubiquitin (Ub) system has been shown to play a role in cellular immune response, cellular development, and programmed cell death. Ubiquitination is a post-translational modification that occurs in eukaryotes. Its mechanism involves a number of factors, including Ub-activating enzymes, Ub-conjugating enzymes, and Ub protein ligases. Deubiquitinating enzymes, which are proteases that reversely modify proteins by removing Ub or Ub-like molecules or remodeling Ub chains on target proteins, have recently been regarded as crucial regulators of ubiquitination-mediated degradation and are known to significantly affect cellular pathways, a number of biological processes, DNA damage response, and DNA repair pathways. Research has increasingly shown evidence of the relationship between ubiquitination, deubiquitination, and oral disease. This review investigates recent progress in discoveries in diseased oral sites and discusses the roles of ubiquitination and deubiquitination in oral disease.
Collapse
|
42
|
Wang Z, Kang W, Li O, Qi F, Wang J, You Y, He P, Suo Z, Zheng Y, Liu HM. Abrogation of USP7 is an alternative strategy to downregulate PD-L1 and sensitize gastric cancer cells to T cells killing. Acta Pharm Sin B 2021; 11:694-707. [PMID: 33777676 PMCID: PMC7982505 DOI: 10.1016/j.apsb.2020.11.005] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Revised: 09/01/2020] [Accepted: 09/07/2020] [Indexed: 12/13/2022] Open
Abstract
Targeting immune checkpoints such as programmed cell death protein 1 (PD-1) and programmed death ligand-1 (PD-L1) have been approved for treating melanoma, gastric cancer (GC) and bladder cancer with clinical benefit. Nevertheless, many patients failed to respond to anti-PD-1/PD-L1 treatment, so it is necessary to seek an alternative strategy for traditional PD-1/PD-L1 targeting immunotherapy. Here with the data from The Cancer Genome Atlas (TCGA) and our in-house tissue library, PD-L1 expression was found to be positively correlated with the expression of ubiquitin-specific processing protease 7 (USP7) in GC. Furthermore, USP7 directly interacted with PD-L1 in order to stabilize it, while abrogation of USP7 attenuated PD-L1/PD-1 interaction and sensitized cancer cells to T cell killing in vitro and in vivo. Besides, USP7 inhibitor suppressed GC cells proliferation by stabilizing P53 in vitro and in vivo. Collectively, our findings indicate that in addition to inhibiting cancer cells proliferation, USP7 inhibitor can also downregulate PD-L1 expression to enhance anti-tumor immune response simultaneously. Hence, these data posit USP7 inhibitor as an anti-proliferation agent as well as a novel therapeutic agent in PD-L1/PD-1 blockade strategy that can promote the immune response of the tumor.
Collapse
Key Words
- BCA, bicinchoninic acid
- CHX, cycloheximide
- CSN5, COP9 signalosome 5
- Cancer biology
- DUB, deubiquitinating enzymes
- EBNA1, Epstein–Barr nuclear antigen 1
- Epigenetics
- FDA, U.S. Food and Drug Administration
- FOXO4, forkhead box O4
- GC, gastric cancer
- GEPIA, Gene-Expression Profiling Interactive Analysis
- Gastric cancer
- H2O2, hydrogen peroxidase
- HAUSP, herpes virus-associated ubiquitin-specific protease
- HDN, well differentiated matched adjacent normal tissues
- HDT, well differentiated tumor tissues
- ICP0, infected cell protein 0
- IL-2, interleukin 2
- Immunosuppression
- Immunotherapy
- MDM2, murine double minute-2
- PBMC, peripheral blood mononuclear cells
- PBS, phosphate buffer saline
- PD-1, programmed cell death protein 1
- PD-L1
- PD-L1, programmed death ligand-1
- PDN, poor differentiated matched adjacent normal tissues
- PDT, poor differentiated tumor tissues
- PTMs, post-translational modifications
- RIPA, radioimmunoprecipitation
- TCGA, the Cancer Genome Atlas
- TCR, T cell receptor
- TILs, tumor-infiltrating T cells
- USP18, ubiquitin specific peptidase 18
- USP22, ubiquitin specific peptidase 22
- USP38, ubiquitin specific peptidase 38
- USP7
- USP7, ubiquitin-specific processing protease 7
- USP9X, ubiquitin specific peptidase 9 X-linked
- Ubiquitination
- WB, Western blotting
- irAEs, immune-related adverse effects
- qRT-PCR, quantitative real time polymerase chain reaction
Collapse
|
43
|
Liu J, Cheng Y, Zheng M, Yuan B, Wang Z, Li X, Yin J, Ye M, Song Y. Targeting the ubiquitination/deubiquitination process to regulate immune checkpoint pathways. Signal Transduct Target Ther 2021; 6:28. [PMID: 33479196 PMCID: PMC7819986 DOI: 10.1038/s41392-020-00418-x] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 10/13/2020] [Accepted: 10/27/2020] [Indexed: 12/20/2022] Open
Abstract
The immune system initiates robust immune responses to defend against invading pathogens or tumor cells and protect the body from damage, thus acting as a fortress of the body. However, excessive responses cause detrimental effects, such as inflammation and autoimmune diseases. To balance the immune responses and maintain immune homeostasis, there are immune checkpoints to terminate overwhelmed immune responses. Pathogens and tumor cells can also exploit immune checkpoint pathways to suppress immune responses, thus escaping immune surveillance. As a consequence, therapeutic antibodies that target immune checkpoints have made great breakthroughs, in particular for cancer treatment. While the overall efficacy of immune checkpoint blockade (ICB) is unsatisfactory since only a small group of patients benefited from ICB treatment. Hence, there is a strong need to search for other targets that improve the efficacy of ICB. Ubiquitination is a highly conserved process which participates in numerous biological activities, including innate and adaptive immunity. A growing body of evidence emphasizes the importance of ubiquitination and its reverse process, deubiquitination, on the regulation of immune responses, providing the rational of simultaneous targeting of immune checkpoints and ubiquitination/deubiquitination pathways to enhance the therapeutic efficacy. Our review will summarize the latest findings of ubiquitination/deubiquitination pathways for anti-tumor immunity, and discuss therapeutic significance of targeting ubiquitination/deubiquitination pathways in the future of immunotherapy.
Collapse
Affiliation(s)
- Jiaxin Liu
- Department of Respiratory and Critical Care Medicine, Affiliated Jinling Hospital, Medical School of Nanjing University, 210002, Nanjing, Jiangsu, China
- Department of Respiratory and Critical Care Medicine, Jinling Hospital, Nanjing University School of Medicine, 210002, Nanjing, China
| | - Yicheng Cheng
- Department of Stomatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, China
| | - Ming Zheng
- Department of Respiratory and Critical Care Medicine, Jinling Hospital, Nanjing Medical University, 210002, Nanjing, Jiangsu, China
| | - Bingxiao Yuan
- Department of Respiratory and Critical Care Medicine, Jinling Hospital, Nanjing Medical University, 210002, Nanjing, Jiangsu, China
| | - Zimu Wang
- Department of Respiratory and Critical Care Medicine, Affiliated Jinling Hospital, Medical School of Nanjing University, 210002, Nanjing, Jiangsu, China
- Department of Respiratory and Critical Care Medicine, Jinling Hospital, Nanjing University School of Medicine, 210002, Nanjing, China
| | - Xinying Li
- Department of Respiratory and Critical Care Medicine, Affiliated Jinling Hospital, Medical School of Nanjing University, 210002, Nanjing, Jiangsu, China
- Department of Respiratory and Critical Care Medicine, Jinling Hospital, Nanjing University School of Medicine, 210002, Nanjing, China
| | - Jie Yin
- Department of Respiratory and Critical Care Medicine, Jinling Hospital, Nanjing University School of Medicine, 210002, Nanjing, China.
| | - Mingxiang Ye
- Department of Respiratory and Critical Care Medicine, Jinling Hospital, Nanjing University School of Medicine, 210002, Nanjing, China.
| | - Yong Song
- Department of Respiratory and Critical Care Medicine, Jinling Hospital, Nanjing University School of Medicine, 210002, Nanjing, China.
| |
Collapse
|
44
|
Hu X, Wang J, Chu M, Liu Y, Wang ZW, Zhu X. Emerging Role of Ubiquitination in the Regulation of PD-1/PD-L1 in Cancer Immunotherapy. Mol Ther 2021; 29:908-919. [PMID: 33388422 DOI: 10.1016/j.ymthe.2020.12.032] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 12/09/2020] [Accepted: 12/22/2020] [Indexed: 12/11/2022] Open
Abstract
A growing amount of evidence suggests that ubiquitination and deubiquitination of programmed death 1 (PD-1)/programmed death-ligand 1 (PD-L1) play crucial roles in the regulation of PD-1 and PD-L1 protein stabilization and dynamics. PD-1/PD-L1 is a major coinhibitory checkpoint pathway that modulates immune escape in cancer patients, and its engagement and inhibition has significantly reshaped the landscape of tumor clearance. The abnormal ubiquitination and deubiquitination of PD-1/PD-L1 influence PD-1/PD-L1-mediated immunosuppression. In this review, we describe the ubiquitination- and deubiquitination-mediated modulation of PD-1/PD-L1 signaling through a variety of E3 ligases and deubiquitinating enzymes (DUBs). Moreover, we briefly expound on the anticancer potential of some agents that target related E3 ligases, which further modulate the ubiquitination of PD-1/PD-L1 in cancers. Therefore, this review reveals the development of a highly promising therapeutic approach for cancer immunotherapy by targeting PD-1/PD-L1 ubiquitination.
Collapse
Affiliation(s)
- Xiaoli Hu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Jing Wang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Man Chu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Yi Liu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Zhi-Wei Wang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China.
| | - Xueqiong Zhu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China.
| |
Collapse
|
45
|
Deubiquitinating enzyme OTUB1 promotes cancer cell immunosuppression via preventing ER-associated degradation of immune checkpoint protein PD-L1. Cell Death Differ 2020; 28:1773-1789. [PMID: 33328570 DOI: 10.1038/s41418-020-00700-z] [Citation(s) in RCA: 87] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 11/24/2020] [Accepted: 11/27/2020] [Indexed: 12/12/2022] Open
Abstract
Upregulation of programmed death ligand 1 (PD-L1) helps tumor cells escape from immune surveillance, and therapeutic antibodies targeting PD-1/PD-L1 have shown better patient outcomes only in several types of malignancies. Recent studies suggest that the clinical efficacy of anti-PD-1/PD-L1 treatments is associated with PD-L1 levels; however, the underlying mechanism of high PD-L1 protein levels in cancers is not well defined. Here, we report that the deubiquitinase OTUB1 positively regulates PD-L1 stability and mediates cancer immune responses through the PD-1/PD-L1 axis. Mechanistically, we demonstrate that OTUB1 interacts with and removes K48-linked ubiquitin chains from the PD-L1 intracellular domain in a manner dependent on its deubiquitinase activity to hinder the degradation of PD-L1 through the ERAD pathway. Functionally, depletion of OTUB1 markedly decreases PD-L1 abundance, reduces PD-1 protein binding to the tumor cell surface, and causes increased tumor cell sensitivity to human peripheral blood mononuclear cells (PBMCs)-mediated cytotoxicity. Meanwhile, OTUB1 ablation-induced PD-L1 destabilization facilitates more CD8+ T cells infiltration and increases the level of IFN-γ in serum to enhance antitumor immunity in mice, and the tumor growth suppression by OTUB1 silencing could be reversed by PD-L1 overexpression. Furthermore, we observe a significant correlation between PD-L1 abundance and OTUB1 expression in human breast carcinoma. Our study reveals OTUB1 as a deubiquitinating enzyme that influences cancer immunosuppression via regulation of PD-L1 stability and may be a potential therapeutic target for cancer immunotherapy.
Collapse
|
46
|
Targeted degradation of immune checkpoint proteins: emerging strategies for cancer immunotherapy. Oncogene 2020; 39:7106-7113. [PMID: 33024277 DOI: 10.1038/s41388-020-01491-w] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 09/19/2020] [Accepted: 09/24/2020] [Indexed: 02/06/2023]
Abstract
Cancer immunotherapy using immune-checkpoint blockade has displayed promising clinical effects, but prevalent antibody-based inhibitors face multiple challenges such as low response rate, acquired resistance, and adverse effects. The intracellular expression of PD-1/PD-L1 in recycling endosomes and their active trafficking to membrane highlight the importance of depleting rather than interfering with checkpoint proteins. Preclinical investigations on the therapeutic effects of lead compounds that function by degrading immune checkpoint ligands and receptors have reported highly promising results. By harnessing the degradation capabilities of the lysosome, proteasome and autophagosomes, different small molecules and peptides potently induced degradation of checkpoint proteins and enhanced anti-tumor immunity. Both in vitro and in vivo experiments support the therapeutic efficacy of these molecules. Thus, targeted degradation through endo-lysosomal, autophagic, proteasomal, or endoplasmic reticulum-related pathways may provide promising strategies for tackling the challenges in cancer immunotherapy.
Collapse
|
47
|
Bailly C, Vergoten G. N-glycosylation and ubiquitinylation of PD-L1 do not restrict interaction with BMS-202: A molecular modeling study. Comput Biol Chem 2020; 88:107362. [PMID: 32871472 DOI: 10.1016/j.compbiolchem.2020.107362] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 08/07/2020] [Accepted: 08/17/2020] [Indexed: 12/13/2022]
Abstract
The Programmed cell Death protein-1/Ligand 1 (PD-1/L1) checkpoint is a major target in oncology. Monoclonal antibodies targeting PD-1 or PD-L1 are used to treat different types of solid tumors and lymphoma. PD-L1-binding small molecules are also actively searched. The lead compound is the biphenyl drug BMS-202 which stabilizes PD-L1 protein dimers and displays a potent antitumor activity in experimental models. Here we have investigated the effect of N-glycosylation (at N35, N192, N200 and N219) and mono-ubiquitination (at K178) of PD-L1 on the interaction with BMS-202 by molecular modeling. Two complementary tridimensional models of PD-L1, based on available crystallographic structures, were constructed with BMS-202 bound. The structures were glycosylated, with a fucosylated bi-antennary N-glycan and ubiquitinated. Model 1 refers to glycoPD-L1 bearing 16 N-glycans, with or without 4 ubiquitin residues. Model 2 presents 8 N-glycans and 2 ubiquitin residues. In both cases, BMS-202 was bound to the protein interface, stabilizing a PD-L1 dimer. The incorporation of the N-glycans or the ubiquitins did not significantly alter the drug-protein recognition. The interface of the drug-stabilized protein dimer is unaffected by the glycosylation or ubiquitination. Calculations of the binding energies indicated that the glycosylation slightly reduces the stability of the drug-protein complexes but does not prevent the drug binding process. Our modeling study suggests that the drug can target efficiently the different forms of PD-L1 in cells, glycosylated, ubiquitinated or not. These models of N-glycosylated and ubiquitinated PD-L1 will be useful to study other PD-L1 protein complexes.
Collapse
Affiliation(s)
| | - Gérard Vergoten
- University of Lille, Inserm, INFINITE - U1286, Institut de Chimie Pharmaceutique Albert Lespagnol (ICPAL), Faculté de Pharmacie, 3 rue du Professeur Laguesse, BP-83, F-59006, Lille, France
| |
Collapse
|
48
|
Huang X, Zhang X, Xu J, Wang X, Zhang G, Tang T, Shen X, Liang T, Bai X. Deubiquitinating Enzyme: A Potential Secondary Checkpoint of Cancer Immunity. Front Oncol 2020; 10:1289. [PMID: 32850399 PMCID: PMC7426525 DOI: 10.3389/fonc.2020.01289] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 06/22/2020] [Indexed: 12/11/2022] Open
Abstract
The efficacy of cancer immunotherapy depends on the fine interplay between tumoral immune checkpoints and host immune system. However, the up-to-date clinical performance of checkpoint blockers in cancer therapy revealed that higher-level regulation should be further investigated for better therapeutic outcomes. It is becoming increasingly evident that the expression of immune checkpoints is largely associated to the immunotherapeutic response and consequent prognosis. Deubiquitinating enzymes (DUBs) with their role of cleaving ubiquitin from proteins and other molecules, thus reversing ubiquitination-mediated protein degradation, modulate multiple cellular processes, including, but not limited to, transcriptional regulation, cell cycle progression, tissue development, and antiviral response. Accumulating evidence indicates that DUBs also have the critical influence on anticancer immunity, simply by stabilizing pivotal checkpoints or key regulators of T-cell functions. Therefore, this review summarizes the current knowledge about DUBs, highlights the secondary checkpoint-like role of DUBs in cancer immunity, in particular their direct effects on the stability control of pivotal checkpoints and key regulators of T-cell functions, and suggests the therapeutic potential of DUBs-based strategy in targeted immunotherapy for cancer.
Collapse
Affiliation(s)
- Xing Huang
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Innovation Center for the Study of Pancreatic Diseases, Hangzhou, China
| | - Xiaozhen Zhang
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Innovation Center for the Study of Pancreatic Diseases, Hangzhou, China
| | - Jian Xu
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Innovation Center for the Study of Pancreatic Diseases, Hangzhou, China
| | - Xun Wang
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Innovation Center for the Study of Pancreatic Diseases, Hangzhou, China
| | - Gang Zhang
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Innovation Center for the Study of Pancreatic Diseases, Hangzhou, China
| | - Tianyu Tang
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Innovation Center for the Study of Pancreatic Diseases, Hangzhou, China
| | - Xiaochao Shen
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Innovation Center for the Study of Pancreatic Diseases, Hangzhou, China
| | - Tingbo Liang
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Innovation Center for the Study of Pancreatic Diseases, Hangzhou, China
| | - Xueli Bai
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Innovation Center for the Study of Pancreatic Diseases, Hangzhou, China
| |
Collapse
|
49
|
Chen MY, Li ZP, Sun ZN, Ma M. USP9X promotes the progression of hepatocellular carcinoma by regulating beta-catenin. Ir J Med Sci 2020; 189:865-871. [PMID: 32065347 DOI: 10.1007/s11845-020-02199-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 02/05/2020] [Indexed: 01/11/2023]
Abstract
Hepatocellular carcinoma (HCC) is among the malignant tumors with highest mortality. The role of USP9X in the carcinogenesis of HCC has not yet been determined. In this study, USP9X was found significantly highly expressed in the intratumor tissues. Expression of intratumor USP9X was associated with tumor size and microvascular invasion while USP9X is independent risk factor of HCC disease-free survival and overall survival. In vitro studies revealed that knockdown of USP9X significantly inhibited the proliferation of HCC cells. Mechanically, USP9X promotes HCC cell proliferation by regulating the expression of beta-catenin. The results of the present study demonstrated that high expression of USP9X in intratumoral cells is associated with poor HCC prognosis, which may serve as a potential target for an adjuvant therapy.
Collapse
Affiliation(s)
- Mei-Yuan Chen
- Department of General Surgery, Weifang Yidu Central Hospital, Weifang, 262500, Shandong, China
| | - Zi-Ping Li
- Department of Neurology, Weifang Yidu Central Hospital, Weifang, 262500, Shandong, China
| | - Zhao-Na Sun
- Department of Cardiology, Weifang Yidu Central Hospital, Weifang, 262500, Shandong, China
| | - Ming Ma
- Department of Oncology, Linyi People's Hospital, Linyi, 276000, Shandong, China.
| |
Collapse
|
50
|
Recent Findings in the Posttranslational Modifications of PD-L1. JOURNAL OF ONCOLOGY 2020; 2020:5497015. [PMID: 32377193 PMCID: PMC7199566 DOI: 10.1155/2020/5497015] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 11/06/2019] [Accepted: 11/20/2019] [Indexed: 01/31/2023]
Abstract
Immune checkpoint therapy, such as the reactivation of T-cell activity by targeting programmed cell death 1 (PD-1) and its ligand PD-L1 (also called B7-H1 and CD274) has been found pivotal in changing the historically dim prognoses of malignant tumors by causing durable objective responses. However, the response rate of immune checkpoint therapy required huge improvements. It has been shown that the expression of PD-L1 on cancer cells and immune cell membranes is correlated with a more durable objective response rate to PD-L1 antibodies, which highlights the importance of deeply understanding how this protein is regulated. Posttranslational modifications such as phosphorylation, N-glycosylation, and ubiquitination of PD-L1 have emerged as important regulatory mechanisms that modulate immunosuppression in patients with cancer. In this review, we summarized the latest findings of PD-L1 protein modification and their clinical applications.
Collapse
|