1
|
Tang K, Yin T, Deng B, Wang M, Ren Z, Wang S, Liu X, Li H, Wang J, Du Y, Zhou J, Chen Y, Wang Y. USP7 deubiquitinates epigenetic reader ZMYND8 to promote breast cancer cell migration and invasion. J Biol Chem 2024; 300:107672. [PMID: 39128723 PMCID: PMC11403496 DOI: 10.1016/j.jbc.2024.107672] [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: 04/17/2024] [Revised: 07/23/2024] [Accepted: 08/02/2024] [Indexed: 08/13/2024] Open
Abstract
The ubiquitin-proteasome system (UPS), which involves E3 ligases and deubiquitinates (DUBs), is critical for protein homeostasis. The epigenetic reader ZMYND8 (zinc finger MYND-type containing 8) has emerged as an oncoprotein, and its protein levels are elevated in various types of cancer, including breast cancer. However, the mechanism by which ZMYND8 protein levels are increased in cancer remains elusive. Although ZMYND8 has been reported to be regulated by the E3 ligase FBXW7, it is still unknown whether ZMYND8 could be modulated by DUBs. Here, we identified USP7 (ubiquitin carboxyl-terminal hydrolase 7) as a bona fide DUB for ZMYND8. Mechanically, USP7 directly binds to the PBP (PHD-BRD-PWWP) domain of ZMYND8 via its TRAF (tumor necrosis factor receptor-associated factor) domain and UBL (ubiquitin-like) domain and removes F-box and WD repeat domain containing 7 (FBXW7)-catalyzed poly-ubiquitin chains on lysine residue 1034 (K1034) within ZMYND8, thereby stabilizing ZMYND8 and stimulating the transcription of ZMYND8 target genes ZEB1 (zinc finger E-box binding homeobox 1) and VEGFA (Vascular Endothelial Growth Factor A). Consequently, USP7 enhances the capacity of breast cancer cells for migration and invasion through antagonizing FBXW7-mediated ZMYND8 degradation. Importantly, the protein levels of USP7 positively correlates with those of ZMYND8 in breast cancer tissues. These findings delineate an important layer of migration and invasion regulation by the USP7-ZMYND8 axis in breast cancer cells.
Collapse
Affiliation(s)
- Kexin Tang
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, Center for Cell Structure and Function, Modem Industry Institute of Biomedicine, College of Life Sciences, Shandong Normal University, Jinan, Shandong, China
| | - Tingting Yin
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, Center for Cell Structure and Function, Modem Industry Institute of Biomedicine, College of Life Sciences, Shandong Normal University, Jinan, Shandong, China
| | - Bo Deng
- Department of General Surgery, The Affiliated Shunde Hospital of Jinan University, Foshan, Guangdong, China
| | - Min Wang
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, Center for Cell Structure and Function, Modem Industry Institute of Biomedicine, College of Life Sciences, Shandong Normal University, Jinan, Shandong, China
| | - Zixuan Ren
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, Center for Cell Structure and Function, Modem Industry Institute of Biomedicine, College of Life Sciences, Shandong Normal University, Jinan, Shandong, China
| | - Shuo Wang
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, Center for Cell Structure and Function, Modem Industry Institute of Biomedicine, College of Life Sciences, Shandong Normal University, Jinan, Shandong, China
| | - Xiong Liu
- School of Medicine, Jinan University, Guangzhou, Guangdong, China
| | - Huiyan Li
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, Center for Cell Structure and Function, Modem Industry Institute of Biomedicine, College of Life Sciences, Shandong Normal University, Jinan, Shandong, China
| | - Jingjing Wang
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, Center for Cell Structure and Function, Modem Industry Institute of Biomedicine, College of Life Sciences, Shandong Normal University, Jinan, Shandong, China
| | - Yating Du
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, Center for Cell Structure and Function, Modem Industry Institute of Biomedicine, College of Life Sciences, Shandong Normal University, Jinan, Shandong, China
| | - Jun Zhou
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, Center for Cell Structure and Function, Modem Industry Institute of Biomedicine, College of Life Sciences, Shandong Normal University, Jinan, Shandong, China
| | - Yan Chen
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, Center for Cell Structure and Function, Modem Industry Institute of Biomedicine, College of Life Sciences, Shandong Normal University, Jinan, Shandong, China; School of Medicine, Jinan University, Guangzhou, Guangdong, China.
| | - Yijie Wang
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, Center for Cell Structure and Function, Modem Industry Institute of Biomedicine, College of Life Sciences, Shandong Normal University, Jinan, Shandong, China.
| |
Collapse
|
2
|
Luo M, Bao L, Xue Y, Zhu M, Kumar A, Xing C, Wang JE, Wang Y, Luo W. ZMYND8 protects breast cancer stem cells against oxidative stress and ferroptosis through activation of NRF2. J Clin Invest 2024; 134:e171166. [PMID: 38488001 PMCID: PMC10940091 DOI: 10.1172/jci171166] [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: 04/03/2023] [Accepted: 01/17/2024] [Indexed: 03/18/2024] Open
Abstract
Breast cancer stem cells (BCSCs) mitigate oxidative stress to maintain their viability and plasticity. However, the regulatory mechanism of oxidative stress in BCSCs remains unclear. We recently found that the histone reader ZMYND8 was upregulated in BCSCs. Here, we showed that ZMYND8 reduced ROS and iron to inhibit ferroptosis in aldehyde dehydrogenase-high (ALDHhi) BCSCs, leading to BCSC expansion and tumor initiation in mice. The underlying mechanism involved a two-fold posttranslational regulation of nuclear factor erythroid 2-related factor 2 (NRF2). ZMYND8 increased stability of NRF2 protein through KEAP1 silencing. On the other hand, ZMYND8 interacted with and recruited NRF2 to the promoters of antioxidant genes to enhance gene transcription in mammospheres. NRF2 phenocopied ZMYND8 to enhance BCSC stemness and tumor initiation by inhibiting ROS and ferroptosis. Loss of NRF2 counteracted ZMYND8's effects on antioxidant genes and ROS in mammospheres. Interestingly, ZMYND8 expression was directly controlled by NRF2 in mammospheres. Collectively, these findings uncover a positive feedback loop that amplifies the antioxidant defense mechanism sustaining BCSC survival and stemness.
Collapse
Affiliation(s)
| | | | | | | | - Ashwani Kumar
- Eugene McDermott Center for Human Growth and Development
| | - Chao Xing
- Eugene McDermott Center for Human Growth and Development
- Lyda Hill Department of Bioinformatics
| | | | - Yingfei Wang
- Department of Pathology
- Department of Neurology
- Peter O’Donnell Jr. Brain Institute
- Cecil H. and Ida Green Center for Reproductive Biology Sciences, and
| | - Weibo Luo
- Department of Pathology
- Department of Pharmacology, UT Southwestern Medical Center, Dallas, Texas, USA
| |
Collapse
|
3
|
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
|
4
|
Wang X, Zhang Y, Wu Y, Cheng H, Wang X. The role of E3 ubiquitin ligases and deubiquitinases in bladder cancer development and immunotherapy. Front Immunol 2023; 14:1202633. [PMID: 37215134 PMCID: PMC10196180 DOI: 10.3389/fimmu.2023.1202633] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Accepted: 04/21/2023] [Indexed: 05/24/2023] Open
Abstract
Bladder cancer is one of the common malignant urothelial tumors. Post-translational modification (PTMs), including ubiquitination, acetylation, methylation, and phosphorylation, have been revealed to participate in bladder cancer initiation and progression. Ubiquitination is the common PTM, which is conducted by E1 ubiquitin-activating enzyme, E2 ubiquitin-conjugating enzyme and E3 ubiquitin-protein ligase. E3 ubiquitin ligases play a key role in bladder oncogenesis and progression and drug resistance in bladder cancer. Therefore, in this review, we summarize current knowledge regarding the functions of E3 ubiquitin ligases in bladder cancer development. Moreover, we provide the evidence of E3 ubiquitin ligases in regulation of immunotherapy in bladder cancer. Furthermore, we mention the multiple compounds that target E3 ubiquitin ligases to improve the therapy efficacy of bladder cancer. We hope our review can stimulate researchers and clinicians to investigate whether and how targeting E3 ubiquitin ligases acts a novel strategy for bladder cancer therapy.
Collapse
|
5
|
Czerwinska P, Mackiewicz AA. Bromodomain (BrD) Family Members as Regulators of Cancer Stemness-A Comprehensive Review. Int J Mol Sci 2023; 24:995. [PMID: 36674511 PMCID: PMC9861003 DOI: 10.3390/ijms24020995] [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: 11/29/2022] [Revised: 12/30/2022] [Accepted: 12/31/2022] [Indexed: 01/06/2023] Open
Abstract
Epigenetic mechanisms involving DNA methylation and chromatin modifications have emerged as critical facilitators of cancer heterogeneity, substantially affecting cancer development and progression, modulating cell phenotypes, and enhancing or inhibiting cancer cell malignant properties. Not surprisingly, considering the importance of epigenetic regulators in normal stem cell maintenance, many chromatin-related proteins are essential to maintaining the cancer stem cell (CSC)-like state. With increased tumor-initiating capacities and self-renewal potential, CSCs promote tumor growth, provide therapy resistance, spread tumors, and facilitate tumor relapse after treatment. In this review, we characterized the epigenetic mechanisms that regulate the acquisition and maintenance of cancer stemness concerning selected epigenetic factors belonging to the Bromodomain (BrD) family of proteins. An increasing number of BrD proteins reinforce cancer stemness, supporting the maintenance of the cancer stem cell population in vitro and in vivo via the utilization of distinct mechanisms. As bromodomain possesses high druggable potential, specific BrD proteins might become novel therapeutic targets in cancers exhibiting de-differentiated tumor characteristics.
Collapse
Affiliation(s)
- Patrycja Czerwinska
- Department of Cancer Immunology, Poznan University of Medical Sciences, 61-866 Poznan, Poland
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, 61-866 Poznan, Poland
| | - Andrzej Adam Mackiewicz
- Department of Cancer Immunology, Poznan University of Medical Sciences, 61-866 Poznan, Poland
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, 61-866 Poznan, Poland
| |
Collapse
|
6
|
Shen L, Zhang J, Zheng Z, Yang F, Liu S, Wu Y, Chen Y, Xu T, Mao S, Yan Y, Li W, Zhang W, Yao X. PHGDH Inhibits Ferroptosis and Promotes Malignant Progression by Upregulating SLC7A11 in Bladder Cancer. Int J Biol Sci 2022; 18:5459-5474. [PMID: 36147463 PMCID: PMC9461664 DOI: 10.7150/ijbs.74546] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 08/04/2022] [Indexed: 11/16/2022] Open
Abstract
Background: Bladder cancer (BCa) is a prevalent urologic malignancy that shows a poor prognosis. Abnormal metabolism and its key genes play a critical role in BCa progression. In this study, the role played by PhosphoGlycerol Dehydrogenase (PHGDH), an important molecule of serine metabolism, was investigated with regard to the regulation of ferroptosis in BCa. Methods: The BCa tissues of 90 patients were analyzed by RNA-sequencing for differential pathways and genes. Western blot, qPCR, and IHC were used to determine PHGDH expression in the cell lines (in vitro) and patient tissues (in vivo). R software was used to analyze PHGDH expression, prognosis, and PHGDH+SLC7A11 score. The biological functions of PHGDH were examined through organoids, and in vitro and in vivo experiments. C11 probes, electron microscopy, and ferroptosis inhibitors/ inducers were used to detect cellular ferroptosis levels. Protein profiling, co-IP, and RIP assays were used to screen proteins that might bind to PHGDH. PHGDH-targeted inhibitor NCT-502 was used to evaluate its effect on BCa cells. Results: PHGDH was highly expressed in patients with BCa. Knock-down of PHGDH promoted ferroptosis, while the decreased proliferation of BCa cells. Additionally, PHGDH knock-down downregulated the expression of SLC7A11. Co-IP and mass spectrometry experiments indicate that PHGDH binds to PCBP2, an RNA-binding protein, and inhibits its ubiquitination degradation. PCBP2 in turn stabilizes SLC7A11 mRNA and increases its expression. NCT-502, a PHGDH inhibitor, promotes ferroptosis and inhibits tumor progression in BCa. The PHGDH+ SLC7A11 score was significantly correlated with patient prognosis. Conclusions: To conclude, the PHGDH, via interaction with PCBP2, upregulates SLC7A11 expression. This inhibits ferroptosis and promotes the malignant progression of BCA. The results of this study indicated that NCT-502 could serve as a therapeutic strategy for BCa.
Collapse
Affiliation(s)
- Liliang Shen
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, 200072,Shanghai, China.,Urologic Cancer Institute, School of Medicine, Tongji University, Shanghai, China.,Department of Urology, People's Hospital affiliated to Ningbo University, Ningbo University, Ningbo, China
| | - Junfeng Zhang
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, 200072,Shanghai, China.,Urologic Cancer Institute, School of Medicine, Tongji University, Shanghai, China
| | - Zongtai Zheng
- Urologic Cancer Institute, School of Medicine, Tongji University, Shanghai, China.,Department of Urology, Guangdong Second Provincial General Hospital, Guangzhou, 510317, Guangdong Province, China
| | - Fuhan Yang
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, 200072,Shanghai, China.,Urologic Cancer Institute, School of Medicine, Tongji University, Shanghai, China
| | - Shenghua Liu
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, 200072,Shanghai, China.,Urologic Cancer Institute, School of Medicine, Tongji University, Shanghai, China
| | - Yuan Wu
- Department of Urology, Hefei Cancer Hospital, Chinese Academy of Science, Hefei, China
| | - Yifan Chen
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, 200072,Shanghai, China.,Urologic Cancer Institute, School of Medicine, Tongji University, Shanghai, China
| | - Tianyuan Xu
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, 200072,Shanghai, China.,Urologic Cancer Institute, School of Medicine, Tongji University, Shanghai, China
| | - Shiyu Mao
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, 200072,Shanghai, China.,Urologic Cancer Institute, School of Medicine, Tongji University, Shanghai, China
| | - Yang Yan
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, 200072,Shanghai, China.,Urologic Cancer Institute, School of Medicine, Tongji University, Shanghai, China
| | - Wei Li
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, 200072,Shanghai, China.,Urologic Cancer Institute, School of Medicine, Tongji University, Shanghai, China
| | - Wentao Zhang
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, 200072,Shanghai, China.,Urologic Cancer Institute, School of Medicine, Tongji University, Shanghai, China
| | - Xudong Yao
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, 200072,Shanghai, China.,Urologic Cancer Institute, School of Medicine, Tongji University, Shanghai, China
| |
Collapse
|
7
|
Luo M, Bao L, Chen Y, Xue Y, Wang Y, Zhang B, Wang C, Corley CD, McDonald JG, Kumar A, Xing C, Fang Y, Nelson ER, Wang JE, Wang Y, Luo W. ZMYND8 is a master regulator of 27-hydroxycholesterol that promotes tumorigenicity of breast cancer stem cells. SCIENCE ADVANCES 2022; 8:eabn5295. [PMID: 35857506 PMCID: PMC9286501 DOI: 10.1126/sciadv.abn5295] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 06/02/2022] [Indexed: 06/15/2023]
Abstract
27-Hydroxycholesterol (27-HC) is the most abundant oxysterol that increases the risk of breast cancer progression. However, little is known about epigenetic regulation of 27-HC metabolism and its role in breast tumor initiation. Using genetic mouse mammary tumor and human breast cancer models, we showed here that the histone reader ZMYND8 was selectively expressed in breast cancer stem cells (BCSCs) and promoted epithelial-mesenchymal transition (EMT), BCSC maintenance and self-renewal, and oncogenic transformation through its epigenetic functions, leading to breast tumor initiation. Mechanistically, ZMYND8 was a master transcriptional regulator of 27-HC metabolism. It increased cholesterol biosynthesis and oxidation but blocked cholesterol efflux and 27-HC catabolism, leading to accumulation of 27-HC in BCSCs. Consequently, 27-HC promoted EMT, oncogenic transformation, and tumor initiation through activation of liver X receptor. These findings reveal that ZMYND8 is an epigenetic booster that drives breast tumor initiation through metabolic reprogramming.
Collapse
Affiliation(s)
- Maowu Luo
- Department of Pathology, UT Southwestern Medical Center, Dallas, TX, USA
| | - Lei Bao
- Department of Pathology, UT Southwestern Medical Center, Dallas, TX, USA
| | - Yan Chen
- Department of Pathology, UT Southwestern Medical Center, Dallas, TX, USA
| | - Yuanyuan Xue
- Children’s Medical Center Research Institute, UT Southwestern Medical Center, Dallas, TX, USA
| | - Yong Wang
- Department of Pathology, UT Southwestern Medical Center, Dallas, TX, USA
| | - Bo Zhang
- Department of Pathology, UT Southwestern Medical Center, Dallas, TX, USA
| | - Chenliang Wang
- Department of Pathology, UT Southwestern Medical Center, Dallas, TX, USA
| | - Chase D. Corley
- Center for Human Nutrition, UT Southwestern Medical Center, Dallas, TX, USA
| | - Jeffrey G. McDonald
- Center for Human Nutrition, UT Southwestern Medical Center, Dallas, TX, USA
- Department of Molecular Genetics, UT Southwestern Medical Center, Dallas, TX, USA
| | - Ashwani Kumar
- Eugene McDermott Center for Human Growth and Development, UT Southwestern Medical Center, Dallas, TX, USA
| | - Chao Xing
- Eugene McDermott Center for Human Growth and Development, UT Southwestern Medical Center, Dallas, TX, USA
- Lyda Hill Department of Bioinformatics, UT Southwestern Medical Center, Dallas, TX, USA
- Department of Population and Data Sciences, UT Southwestern Medical Center, Dallas, TX, USA
| | - Yisheng Fang
- Department of Pathology, UT Southwestern Medical Center, Dallas, TX, USA
| | - Erik R. Nelson
- Department of Molecular and Integrative Physiology, University of Illinois Urbana-Champaign, Urbana, IL, USA
- Cancer Center at Illinois, University of Illinois Urbana-Champaign, Urbana, IL, USA
- Carl R. Woese Institute for Genomic Biology, University of Illinois Urbana-Champaign, Urbana, IL, USA
| | - Jennifer E. Wang
- Department of Pathology, UT Southwestern Medical Center, Dallas, TX, USA
| | - Yingfei Wang
- Department of Pathology, UT Southwestern Medical Center, Dallas, TX, USA
- Department of Neurology, UT Southwestern Medical Center, Dallas, TX, USA
- Peter O’Donnell Jr. Brain Institute, UT Southwestern Medical Center, Dallas, TX, USA
| | - Weibo Luo
- Department of Pathology, UT Southwestern Medical Center, Dallas, TX, USA
- Department of Pharmacology, UT Southwestern Medical Center, Dallas, TX, USA
| |
Collapse
|
8
|
Quiroga M, Rodríguez-Alonso A, Alfonsín G, Rodríguez JJE, Breijo SM, Chantada V, Figueroa A. Protein Degradation by E3 Ubiquitin Ligases in Cancer Stem Cells. Cancers (Basel) 2022; 14:cancers14040990. [PMID: 35205738 PMCID: PMC8870109 DOI: 10.3390/cancers14040990] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/09/2022] [Accepted: 02/11/2022] [Indexed: 02/05/2023] Open
Abstract
Simple Summary The aim of this review was to discuss the fundamental role of E3 ubiquitin ligases in controlling cancer stem cells. It will be surmised that protein degradation controlled by the E3 ubiquitin ligases plays a fundamental role in the self-renewal, maintenance and differentiation of cancer stem cells, highlighting its potential as an effective therapeutic target for anticancer drug development. Abstract Cancer stem cells are a small subpopulation within the tumor with high capacity for self-renewal, differentiation and reconstitution of tumor heterogeneity. Cancer stem cells are major contributors of tumor initiation, metastasis and therapy resistance in cancer. Emerging evidence indicates that ubiquitination-mediated post-translational modification plays a fundamental role in the maintenance of cancer stem cell characteristics. In this review, we will discuss how protein degradation controlled by the E3 ubiquitin ligases plays a fundamental role in the self-renewal, maintenance and differentiation of cancer stem cells, highlighting the possibility to develop novel therapeutic strategies against E3 ubiquitin ligases targeting CSCs to fight cancer.
Collapse
|