1
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Launonen KM, Varis V, Aaltonen N, Niskanen EA, Varjosalo M, Paakinaho V, Palvimo JJ. Central role of SUMOylation in the regulation of chromatin interactions and transcriptional outputs of the androgen receptor in prostate cancer cells. Nucleic Acids Res 2024; 52:9519-9535. [PMID: 39106160 PMCID: PMC11381344 DOI: 10.1093/nar/gkae653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 06/17/2024] [Accepted: 07/17/2024] [Indexed: 08/09/2024] Open
Abstract
The androgen receptor (AR) is pivotal in prostate cancer (PCa) progression and represents a critical therapeutic target. AR-mediated gene regulation involves intricate interactions with nuclear proteins, with many mediating and undergoing post-translational modifications that present alternative therapeutic avenues. Through chromatin proteomics in PCa cells, we identified SUMO ligases together with nuclear receptor coregulators and pioneer transcription factors within the AR's protein network. Intriguingly, this network displayed a significant association with SUMO2/3. To elucidate the influence of SUMOylation on AR chromatin interactions and subsequent gene regulation, we inhibited SUMOylation using ML-792 (SUMOi). While androgens generally facilitated the co-occupancy of SUMO2/3 and AR on chromatin, SUMOi induced divergent effects dependent on the type of AR-binding site (ARB). SUMOi augmented AR's pioneer-like binding on inaccessible chromatin regions abundant in androgen response elements (AREs) and diminished its interaction with accessible chromatin regions sparse in AREs yet rich in pioneer transcription factor motifs. The SUMOi-impacted ARBs divergently influenced AR-regulated genes; those associated with AR-mediated activation played roles in negative regulation of cell proliferation, while those with AR-mediated repression were involved in pattern formation. In conclusion, our findings underscore the pervasive influence of SUMOylation in shaping AR's role in PCa cells, potentially unveiling new therapeutic strategies.
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Affiliation(s)
- Kaisa-Mari Launonen
- Institute of Biomedicine, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
| | - Vera Varis
- Institute of Biomedicine, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
| | - Niina Aaltonen
- Institute of Biomedicine, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
| | - Einari A Niskanen
- Institute of Biomedicine, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
| | - Markku Varjosalo
- Institute of Biotechnology, HiLIFE, University of Helsinki, Helsinki, Finland
- HiLIFE-Proteomics Unit, University of Helsinki, Helsinki, Finland
| | - Ville Paakinaho
- Institute of Biomedicine, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
| | - Jorma J Palvimo
- Institute of Biomedicine, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
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2
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Montoya-Novoa I, Gardeazábal-Torbado JL, Alegre-Martí A, Fuentes-Prior P, Estébanez-Perpiñá E. Androgen receptor post-translational modifications and their implications for pathology. Biochem Soc Trans 2024; 52:1673-1694. [PMID: 38958586 DOI: 10.1042/bst20231082] [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: 03/27/2024] [Revised: 06/10/2024] [Accepted: 06/13/2024] [Indexed: 07/04/2024]
Abstract
A major mechanism to modulate the biological activities of the androgen receptor (AR) involves a growing number of post-translational modifications (PTMs). In this review we summarise the current knowledge on the structural and functional impact of PTMs that affect this major transcription factor. Next, we discuss the cross-talk between these different PTMs and the presence of clusters of modified residues in the AR protein. Finally, we discuss the implications of these covalent modifications for the aetiology of diseases such as spinal and bulbar muscular atrophy (Kennedy's disease) and prostate cancer, and the perspectives for pharmacological intervention.
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Affiliation(s)
- Inés Montoya-Novoa
- Structural Biology of Nuclear Receptors, Department of Biochemistry and Molecular Biomedicine, Faculty of Biology, University of Barcelona (UB), 08028 Barcelona, Spain
- Institute of Biomedicine of the University of Barcelona (IBUB), University of Barcelona (UB), 08028 Barcelona, Spain
| | - José Luis Gardeazábal-Torbado
- Structural Biology of Nuclear Receptors, Department of Biochemistry and Molecular Biomedicine, Faculty of Biology, University of Barcelona (UB), 08028 Barcelona, Spain
- Institute of Biomedicine of the University of Barcelona (IBUB), University of Barcelona (UB), 08028 Barcelona, Spain
| | - Andrea Alegre-Martí
- Structural Biology of Nuclear Receptors, Department of Biochemistry and Molecular Biomedicine, Faculty of Biology, University of Barcelona (UB), 08028 Barcelona, Spain
- Institute of Biomedicine of the University of Barcelona (IBUB), University of Barcelona (UB), 08028 Barcelona, Spain
| | - Pablo Fuentes-Prior
- Structural Biology of Nuclear Receptors, Department of Biochemistry and Molecular Biomedicine, Faculty of Biology, University of Barcelona (UB), 08028 Barcelona, Spain
- Institute of Biomedicine of the University of Barcelona (IBUB), University of Barcelona (UB), 08028 Barcelona, Spain
| | - Eva Estébanez-Perpiñá
- Structural Biology of Nuclear Receptors, Department of Biochemistry and Molecular Biomedicine, Faculty of Biology, University of Barcelona (UB), 08028 Barcelona, Spain
- Institute of Biomedicine of the University of Barcelona (IBUB), University of Barcelona (UB), 08028 Barcelona, Spain
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3
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Lumahan LEV, Arif M, Whitener AE, Yi P. Regulating Androgen Receptor Function in Prostate Cancer: Exploring the Diversity of Post-Translational Modifications. Cells 2024; 13:191. [PMID: 38275816 PMCID: PMC10814774 DOI: 10.3390/cells13020191] [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: 12/01/2023] [Revised: 01/05/2024] [Accepted: 01/09/2024] [Indexed: 01/27/2024] Open
Abstract
Androgen receptor (AR) transcriptional activity significantly influences prostate cancer (PCa) progression. In addition to ligand stimulation, AR transcriptional activity is also influenced by a variety of post-translational modifications (PTMs). A number of oncogenes and tumor suppressors have been observed leveraging PTMs to influence AR activity. Subjectively targeting these post-translational modifiers based on their impact on PCa cell proliferation is a rapidly developing area of research. This review elucidates the modifiers, contextualizes the effects of these PTMs on AR activity, and connects these cellular interactions to the progression of PCa.
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Affiliation(s)
- Lance Edward V. Lumahan
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77204, USA
| | - Mazia Arif
- Center for Nuclear Receptors and Cell Signaling, Department of Biology and Biochemistry, University of Houston, Houston, TX 77205, USA
| | - Amy E. Whitener
- Center for Nuclear Receptors and Cell Signaling, Department of Biology and Biochemistry, University of Houston, Houston, TX 77205, USA
| | - Ping Yi
- Center for Nuclear Receptors and Cell Signaling, Department of Biology and Biochemistry, University of Houston, Houston, TX 77205, USA
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Shi Y, Yasen M, Wang Z, Du T, Ding Y, Li X, Chai Z, Jie C, Ju G, Ji M. The allosteric effect of the upper half of SENP1 contributes to its substrate selectivity for SUMO1 over SUMO2. J Biomol Struct Dyn 2023; 41:12372-12386. [PMID: 36656084 DOI: 10.1080/07391102.2023.2166997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 01/03/2023] [Indexed: 01/20/2023]
Abstract
SUMOylation regulates various cellular process and SENP1 (SUMO-specific protease 1) serves as a SUMO (small ubiquitin-related modifier) specific protease that participates in the SUMO cycle. Given its extensive influences on metabolic activities, SENP1 has gained more and more attentions in clinical treatments. However, there remains a question on why does the SENP1 prefer to process SUMO1 rather than SUMO2. Here, we performed molecular dynamics simulations of SENP1-SUMO1, SENP1-SUMO2, and apo SENP1 systems and observed distinct conformational dynamics in the upper half of the clamp and the three loops in the catalytic center of the SENP1. Principal component analysis revealed that the most prominent canonical variable represented the spatial distribution of the upper half of the clamp, while the openness of the cleft was closely related to the catalytic ability of SENP1. Further analysis of the SENP1-SUMO interactions revealed that the extensive and strong interactions between the SENP1 and SUMO1 were both in the interface of the upper half region and the catalytic center. Dynamic cross-correlation matrix analysis demonstrated that the inter-residue correlations in the SUMO1 system was much stronger, especially in the two essential regions belonging to the upper and lower half of cleft. Based on these observations, we proposed an allosteric propagation model and further testified it using the community analysis. These results revealed the propagation pathway of allosteric communication that contributed to the substrate discrimination of SENP1 upon SUMO1 and SUMO2.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Yuxin Shi
- Department of Medicinal Chemistry and Bioinformatics Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Miersalijiang Yasen
- Department of Orthopedic Surgery, Zhongshan Hospital Xiamen Branch, Fudan University, Xiamen, Fujian, China
| | - Zhijun Wang
- Department of Urology, The Second Affiliated Hospital of Navy Medical University, Shanghai, China
| | - Tingting Du
- Department of VIP Clinic, Changhai Hospital, Navy Medical University, Shanghai, China
| | - Yelei Ding
- Department of Urology, The Second Affiliated Hospital of Navy Medical University, Shanghai, China
| | - Xuefei Li
- Department of Urology, Guixi People's Hospital, Guixi City, China
| | - Zongtao Chai
- Department of Liver Surgery and Transplantation, Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Liver Cancer Institute and Zhongshan Hospital, Fudan University, Shanghai, China
- Department of Hepatic Surgery, Shanghai Geriatric Cancer, Shanghai, China
| | - Chen Jie
- Department of Urology, The Second Affiliated Hospital of Navy Medical University, Shanghai, China
| | - Guanqun Ju
- Department of Urology, The Second Affiliated Hospital of Navy Medical University, Shanghai, China
| | - Mingfei Ji
- Department of Urology, The Second Affiliated Hospital of Navy Medical University, Shanghai, China
- Department of Urology, The First Affiliated Hospital of Soochow University, Suzhou, China
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Wei J, Wang H, Zheng Q, Zhang J, Chen Z, Wang J, Ouyang L, Wang Y. Recent research and development of inhibitors targeting sentrin-specific protease 1 for the treatment of cancers. Eur J Med Chem 2022; 241:114650. [PMID: 35939992 DOI: 10.1016/j.ejmech.2022.114650] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 07/28/2022] [Accepted: 07/30/2022] [Indexed: 12/13/2022]
Abstract
Small ubiquitin-like modifier (SUMO)/sentrin-specific protease 1 (SENP1), is a cysteine protease that promotes SUMO maturation and deSUMOylation of target proteins and regulates transcription factors or co-regulatory factors to mediate gene transcription. Many studies have shown that SENP1 is the driving factor for a multitude of cancers including prostate cancer, liver cancer, and breast cancer. Inhibition of SENP1 activity has been proved to inhibit the survival, proliferation, invasion, and migration of cancer cells, and increase their chemical and radiation sensitivity. Therefore, SENP1 is a promising anti-tumor target. At present, peptide inhibitors of SENP1 have entered clinical trials. Recently, many small molecule compounds and natural products were synthesized and identified as SENP1 inhibitors, and showed good tumor inhibitory activity in vitro and in vivo. This review summarizes the structure, physiological function, and role of SENP1 in tumorigenesis and development, focusing on the design and discovery of small molecule inhibitors of SENP1 from the perspective of medicinal chemistry, providing ideas for the development and research of small molecule inhibitors of SENP1 in the future.
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Affiliation(s)
- Junxia Wei
- Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China; Tianfu Jincheng Laboratory, Chengdu, 610041, Sichuan, China
| | - Huijing Wang
- Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Qinwen Zheng
- Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China; Precision Medicine Key Laboratory of Sichuan Province & Precision Medicine Research Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Jifa Zhang
- Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China; Tianfu Jincheng Laboratory, Chengdu, 610041, Sichuan, China
| | - Zhichao Chen
- Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Jiaxing Wang
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, 38163, Tennessee, United States
| | - Liang Ouyang
- Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China; Tianfu Jincheng Laboratory, Chengdu, 610041, Sichuan, China
| | - Yuxi Wang
- Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China; Precision Medicine Key Laboratory of Sichuan Province & Precision Medicine Research Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China; Tianfu Jincheng Laboratory, Chengdu, 610041, Sichuan, China.
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Baltodano-Calle MJ, Onton-Díaz M, Gonzales GF. Androgens, brain and androgen deprivation therapy in paraphilic disorders: A narrative review. Andrologia 2022; 54:e14561. [PMID: 35995581 DOI: 10.1111/and.14561] [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: 05/24/2022] [Revised: 07/26/2022] [Accepted: 08/04/2022] [Indexed: 11/27/2022] Open
Abstract
Sexual delinquency is a global problem where those with paraphilic disorders, such as paedophiles, are more likely to commit and reoffend. Androgen deprivation therapy (ADT) has been suggested as a solution. The objective of this narrative review is to present current information on its risks, benefits and limitations as a treatment for paraphilias. The importance of testosterone in sexual function, the effect of its deficiency by age or by pharmacological treatment (anti-androgens, GnRH agonists and GnRH antagonists) and the effect of testosterone replacement therapy will be reviewed. The relationship between androgens, brain, sexual behaviour and pathophysiology of paraphilic disorders will also be explored. ADT reduces sexual urges, but has adverse effects and, because its reversible nature, it does not ensure less recidivism. Likewise, the research quality of ADT drugs is limited and not enough to support their use. Child sex offenders, and not paraphilic subjects who have not committed assaults, show signs of elevated prenatal exposure to androgens and a higher methylation state of the androgen receptor gene. Sexual behaviour is regulated by subcortical (hypothalamus, brainstem and spinal cord) and cortical structures of the brain, in addition to brain circuits (dopaminergic, serotonergic). Those with paraphilic disorders show abnormalities at these levels that could relate to the risk of sexual offences. In conclusion, androgens represent a significant part of the pathophysiology of paraphilias and therefore, ADT seems promising. Nonetheless, more studies are needed to make definite conclusions about the efficacy of long-term ADT in paraphilic patients.
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Affiliation(s)
| | - Melisa Onton-Díaz
- Faculty of Medicine, Cayetano Heredia Peruvian University., Lima, Peru
| | - Gustavo F Gonzales
- Laboratorio de Endocrinología y Reproducción, Laboratorios de Investigación y Desarrollo (LID), Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima, Peru.,Departamento de Ciencias Biológicas y Fisiológicas, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima, Peru.,Instituto de Investigaciones de la Altura, Universidad Peruana Cayetano Heredia, Lima, Peru
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Ji M, Chai Z, Chen J, Li G, Li Q, Li M, Ding Y, Lu S, Ju G, Hou J. Insights into the Allosteric Effect of SENP1 Q597A Mutation on the Hydrolytic Reaction of SUMO1 via an Integrated Computational Study. Molecules 2022; 27:4149. [PMID: 35807394 PMCID: PMC9268427 DOI: 10.3390/molecules27134149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 06/23/2022] [Accepted: 06/25/2022] [Indexed: 11/26/2022] Open
Abstract
Small ubiquitin-related modifier (SUMO)-specific protease 1 (SENP1) is a cysteine protease that catalyzes the cleavage of the C-terminus of SUMO1 for the processing of SUMO precursors and deSUMOylation of target proteins. SENP1 is considered to be a promising target for the treatment of hepatocellular carcinoma (HCC) and prostate cancer. SENP1 Gln597 is located at the unstructured loop connecting the helices α4 to α5. The Q597A mutation of SENP1 allosterically disrupts the hydrolytic reaction of SUMO1 through an unknown mechanism. Here, extensive multiple replicates of microsecond molecular dynamics (MD) simulations, coupled with principal component analysis, dynamic cross-correlation analysis, community network analysis, and binding free energy calculations, were performed to elucidate the detailed mechanism. Our MD simulations showed that the Q597A mutation induced marked dynamic conformational changes in SENP1, especially in the unstructured loop connecting the helices α4 to α5 which the mutation site occupies. Moreover, the Q597A mutation caused conformational changes to catalytic Cys603 and His533 at the active site, which might impair the catalytic activity of SENP1 in processing SUMO1. Moreover, binding free energy calculations revealed that the Q597A mutation had a minor effect on the binding affinity of SUMO1 to SENP1. Together, these results may broaden our understanding of the allosteric modulation of the SENP1-SUMO1 complex.
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Affiliation(s)
- Mingfei Ji
- Department of Urology, The First Affiliated Hospital of Soochow University, Suzhou 215006, China; (M.J.); (G.L.); (Q.L.); (M.L.)
- Department of Urology, Second Affiliated Hospital of Navy Medical University, Shanghai 200433, China; (J.C.); (Y.D.)
| | - Zongtao Chai
- Department of Hepatic Surgery VI, Eastern Hepatobiliary Surgery Hospital, Navy Medical University, Shanghai 200433, China;
| | - Jie Chen
- Department of Urology, Second Affiliated Hospital of Navy Medical University, Shanghai 200433, China; (J.C.); (Y.D.)
| | - Gang Li
- Department of Urology, The First Affiliated Hospital of Soochow University, Suzhou 215006, China; (M.J.); (G.L.); (Q.L.); (M.L.)
| | - Qiang Li
- Department of Urology, The First Affiliated Hospital of Soochow University, Suzhou 215006, China; (M.J.); (G.L.); (Q.L.); (M.L.)
| | - Miao Li
- Department of Urology, The First Affiliated Hospital of Soochow University, Suzhou 215006, China; (M.J.); (G.L.); (Q.L.); (M.L.)
| | - Yelei Ding
- Department of Urology, Second Affiliated Hospital of Navy Medical University, Shanghai 200433, China; (J.C.); (Y.D.)
| | - Shaoyong Lu
- Department of Bioinformatics and Medicinal Chemistry Center, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, China
| | - Guanqun Ju
- Department of Urology, Second Affiliated Hospital of Navy Medical University, Shanghai 200433, China; (J.C.); (Y.D.)
| | - Jianquan Hou
- Department of Urology, The First Affiliated Hospital of Soochow University, Suzhou 215006, China; (M.J.); (G.L.); (Q.L.); (M.L.)
- Department of Urology, Dushuhu Public Hospital Affiliated to Soochow University, Suzhou 215000, China
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Iwabuchi E, Miki Y, Suzuki T, Sasano H. Visualization of the protein-protein interactions of hormone receptors in hormone-dependent cancer research. ENDOCRINE ONCOLOGY (BRISTOL, ENGLAND) 2022; 2:R132-R142. [PMID: 37435453 PMCID: PMC10259353 DOI: 10.1530/eo-22-0059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 10/03/2022] [Indexed: 07/13/2023]
Abstract
In hormone-dependent cancers, the activation of hormone receptors promotes the progression of cancer cells. Many proteins exert their functions through protein-protein interactions (PPIs). Moreover, in such cancers, hormone-hormone receptor binding, receptor dimerization, and cofactor mobilization PPIs occur primarily in hormone receptors, including estrogen, progesterone, glucocorticoid, androgen, and mineralocorticoid receptors. The visualization of hormone signaling has been primarily reported by immunohistochemistry using specific antibodies; however, the visualization of PPIs is expected to improve our understanding of hormone signaling and disease pathogenesis. Visualization techniques for PPIs include Förster resonance energy transfer (FRET) and bimolecular fluorescence complementation analysis; however, these techniques require the insertion of probes in the cells for PPI detection. Proximity ligation assay (PLA) is a method that could be used for both formalin-fixed paraffin-embedded (FFPE) tissue as well as immunostaining. It can also visualize hormone receptor localization and post-translational modifications of hormone receptors. This review summarizes the results of recent studies on visualization techniques for PPIs with hormone receptors; these techniques include FRET and PLA. In addition, super-resolution microscopy has been recently reported to be applicable to their visualization in both FFPE tissues and living cells. Super-resolution microscopy in conjunction with PLA and FRET could also contribute to the visualization of PPIs and subsequently provide a better understanding of the pathogenesis of hormone-dependent cancers in the future.
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Affiliation(s)
- Erina Iwabuchi
- Department of Pathology, Tohoku University Graduate School of Medicine, Sendai, Japan
- Department of Pathology and Histotechnology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yasuhiro Miki
- Department of Disaster Obstetrics and Gynecology, International Research Institute of Disaster Science (IRIDes), Tohoku University, Sendai, Japan
| | - Takashi Suzuki
- Department of Pathology, Tohoku University Graduate School of Medicine, Sendai, Japan
- Department of Pathology and Histotechnology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hironobu Sasano
- Department of Pathology, Tohoku University Graduate School of Medicine, Sendai, Japan
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Kukkula A, Ojala VK, Mendez LM, Sistonen L, Elenius K, Sundvall M. Therapeutic Potential of Targeting the SUMO Pathway in Cancer. Cancers (Basel) 2021; 13:4402. [PMID: 34503213 PMCID: PMC8431684 DOI: 10.3390/cancers13174402] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 08/23/2021] [Accepted: 08/26/2021] [Indexed: 02/07/2023] Open
Abstract
SUMOylation is a dynamic and reversible post-translational modification, characterized more than 20 years ago, that regulates protein function at multiple levels. Key oncoproteins and tumor suppressors are SUMO substrates. In addition to alterations in SUMO pathway activity due to conditions typically present in cancer, such as hypoxia, the SUMO machinery components are deregulated at the genomic level in cancer. The delicate balance between SUMOylation and deSUMOylation is regulated by SENP enzymes possessing SUMO-deconjugation activity. Dysregulation of SUMO machinery components can disrupt the balance of SUMOylation, contributing to the tumorigenesis and drug resistance of various cancers in a context-dependent manner. Many molecular mechanisms relevant to the pathogenesis of specific cancers involve SUMO, highlighting the potential relevance of SUMO machinery components as therapeutic targets. Recent advances in the development of inhibitors targeting SUMOylation and deSUMOylation permit evaluation of the therapeutic potential of targeting the SUMO pathway in cancer. Finally, the first drug inhibiting SUMO pathway, TAK-981, is currently also being evaluated in clinical trials in cancer patients. Intriguingly, the inhibition of SUMOylation may also have the potential to activate the anti-tumor immune response. Here, we comprehensively and systematically review the recent developments in understanding the role of SUMOylation in cancer and specifically focus on elaborating the scientific rationale of targeting the SUMO pathway in different cancers.
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Affiliation(s)
- Antti Kukkula
- Cancer Research Unit, FICAN West Cancer Center Laboratory, Institute of Biomedicine, Turku University Hospital, University of Turku, FI-20520 Turku, Finland; (A.K.); (V.K.O.); (K.E.)
| | - Veera K. Ojala
- Cancer Research Unit, FICAN West Cancer Center Laboratory, Institute of Biomedicine, Turku University Hospital, University of Turku, FI-20520 Turku, Finland; (A.K.); (V.K.O.); (K.E.)
- Turku Doctoral Programme of Molecular Medicine, University of Turku, FI-20520 Turku, Finland
- Medicity Research Laboratories, University of Turku, FI-20520 Turku, Finland
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, FI-20520 Turku, Finland;
| | - Lourdes M. Mendez
- Beth Israel Deaconess Cancer Center, Beth Israel Deaconess Medical Center, Department of Medicine and Pathology, Cancer Research Institute, Harvard Medical School, Boston, MA 02115, USA;
| | - Lea Sistonen
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, FI-20520 Turku, Finland;
- Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, FI-20520 Turku, Finland
| | - Klaus Elenius
- Cancer Research Unit, FICAN West Cancer Center Laboratory, Institute of Biomedicine, Turku University Hospital, University of Turku, FI-20520 Turku, Finland; (A.K.); (V.K.O.); (K.E.)
- Medicity Research Laboratories, University of Turku, FI-20520 Turku, Finland
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, FI-20520 Turku, Finland;
- Department of Oncology, Turku University Hospital, FI-20521 Turku, Finland
| | - Maria Sundvall
- Cancer Research Unit, FICAN West Cancer Center Laboratory, Institute of Biomedicine, Turku University Hospital, University of Turku, FI-20520 Turku, Finland; (A.K.); (V.K.O.); (K.E.)
- Department of Oncology, Turku University Hospital, FI-20521 Turku, Finland
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10
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Wang Y, Yu J. Dissecting multiple roles of SUMOylation in prostate cancer. Cancer Lett 2021; 521:88-97. [PMID: 34464672 DOI: 10.1016/j.canlet.2021.08.034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 08/25/2021] [Accepted: 08/26/2021] [Indexed: 12/27/2022]
Abstract
Protein modification with small ubiquitin-like modifiers (SUMOs) plays dual roles in prostate cancer (PCa) tumorigenesis and development. Any intermediary of the SUMO conjugation cycle going awry may forfeit the balance between tumorigenic potential and anticancer effects. Deregulated SUMOylation on the androgen receptor and oncoproteins also takes part in this pathological process, as exemplified by STAT3/NF-κB and tumor suppressors such as PTEN and p53. Here, we outline recent developments and discoveries of SUMOylation in PCa and present an overview of its multiple roles in PCa tumorigenesis/promotion and suppression, while elucidating its potential as a therapeutic target for PCa.
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Affiliation(s)
- Yishu Wang
- Department of Biochemistry and Molecular Cell Biology, State Key Laboratory of Oncogenes and Related Genes, Shanghai Key Laboratory of Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China; International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, 200030, China
| | - Jianxiu Yu
- Department of Biochemistry and Molecular Cell Biology, State Key Laboratory of Oncogenes and Related Genes, Shanghai Key Laboratory of Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
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11
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Imbert F, Langford D. Viruses, SUMO, and immunity: the interplay between viruses and the host SUMOylation system. J Neurovirol 2021; 27:531-541. [PMID: 34342851 PMCID: PMC8330205 DOI: 10.1007/s13365-021-00995-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 06/19/2021] [Accepted: 06/29/2021] [Indexed: 12/14/2022]
Abstract
The conjugation of small ubiquitin-like modifier (SUMO) proteins to substrates is a well-described post-translational modification that regulates protein activity, subcellular localization, and protein-protein interactions for a variety of downstream cellular activities. Several studies describe SUMOylation as an essential post-translational modification for successful viral infection across a broad range of viruses, including RNA and DNA viruses, both enveloped and un-enveloped. These viruses include but are not limited to herpes viruses, human immunodeficiency virus-1, and coronaviruses. In addition to the SUMOylation of viral proteins during infection, evidence shows that viruses manipulate the SUMO pathway for host protein SUMOylation. SUMOylation of host and viral proteins greatly impacts host innate immunity through viral manipulation of the host SUMOylation machinery to promote viral replication and pathogenesis. Other post-translational modifications like phosphorylation can also modulate SUMO function. For example, phosphorylation of COUP-TF interacting protein 2 (CTIP2) leads to its SUMOylation and subsequent proteasomal degradation. The SUMOylation of CTIP2 and subsequent degradation prevents CTIP2-mediated recruitment of a multi-enzymatic complex to the HIV-1 promoter that usually prevents the transcription of integrated viral DNA. Thus, the "SUMO switch" could have implications for CTIP2-mediated transcriptional repression of HIV-1 in latency and viral persistence. In this review, we describe the consequences of SUMO in innate immunity and then focus on the various ways that viral pathogens have evolved to hijack the conserved SUMO machinery. Increased understanding of the many roles of SUMOylation in viral infections can lead to novel insight into the regulation of viral pathogenesis with the potential to uncover new targets for antiviral therapies.
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Affiliation(s)
- Fergan Imbert
- Department of Neuroscience, Lewis Katz School of Medicine, Temple University, PA, 19140, Philadelphia, USA
| | - Dianne Langford
- Department of Neuroscience, Lewis Katz School of Medicine, Temple University, PA, 19140, Philadelphia, USA.
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12
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Oh S, Shin S, Janknecht R. Sumoylation of transcription factor ETV1 modulates its oncogenic potential in prostate cancer. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2021; 14:795-810. [PMID: 34367411 PMCID: PMC8339722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Accepted: 06/21/2021] [Indexed: 06/13/2023]
Abstract
The transcription factor ETS variant 1 (ETV1) is capable of promoting prostate tumorigenesis. We demonstrate that ETV1 can be posttranslationally modified by covalent attachment of small ubiquitin-like modifier 1 (SUMO1) onto four different lysine residues. In human embryonic kidney 293T cells, mutation of these sumoylation sites stimulated the transactivation potential of ETV1 at the matrix metalloproteinase 1 (MMP1), but not Yes-associated protein 1 gene promoter, while ETV1 protein stability and intracellular localization remained unchanged. In stark contrast, sumoylation-deficient ETV1 was repressed in its ability to stimulate the MMP1 promoter and to cooperate with a histone demethylase, JmjC domain-containing 2A (JMJD2A), in LNCaP prostate cancer cells. Mutation of sumoylation sites enhanced the ability of ETV1 to interact with the histone deacetylase (HDAC) 1, but had basically no impact on complex formation with HDAC3 or JMJD2A. Further, compared to non-sumoylated ETV1, its sumoylated forms were less able to bind to the transcription factor, SMAD family member 4. Lastly, in contrast to wild-type ETV1, sumoylation-deficient ETV1 repressed LNCaP cell growth. Altogether, these data suggest that sumoylation modulates ETV1 function in a cell type-specific manner, possibly by altering the spectrum of transcriptional cofactors being recruited. Notably, SUMO pathway components SUMO1, ubiquitin-like modifier activating enzyme 2 and ubiquitin conjugating enzyme 9 were upregulated in prostate tumors, implying that enhanced sumoylation indeed promotes ETV1's oncogenic activity during prostate cancer formation.
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Affiliation(s)
- Sangphil Oh
- Department of Cell Biology, University of Oklahoma Health Sciences CenterOklahoma City, Oklahoma, USA
- Stephenson Cancer Center, University of Oklahoma Health Sciences CenterOklahoma City, Oklahoma, USA
| | - Sook Shin
- Department of Cell Biology, University of Oklahoma Health Sciences CenterOklahoma City, Oklahoma, USA
- Stephenson Cancer Center, University of Oklahoma Health Sciences CenterOklahoma City, Oklahoma, USA
| | - Ralf Janknecht
- Department of Cell Biology, University of Oklahoma Health Sciences CenterOklahoma City, Oklahoma, USA
- Stephenson Cancer Center, University of Oklahoma Health Sciences CenterOklahoma City, Oklahoma, USA
- Department of Pathology, University of Oklahoma Health Sciences CenterOklahoma City, Oklahoma, USA
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13
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Tokarz P, Woźniak K. SENP Proteases as Potential Targets for Cancer Therapy. Cancers (Basel) 2021; 13:cancers13092059. [PMID: 33923236 PMCID: PMC8123143 DOI: 10.3390/cancers13092059] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 04/20/2021] [Accepted: 04/21/2021] [Indexed: 12/27/2022] Open
Abstract
Simple Summary Post-translational modification—the biochemical addition of functional groups or proteins—occurs following protein biosynthesis and contributes to an increase in the functional diversity of the proteome. Post-translational modifications include SUMOylation—the covalent attachment of small ubiquitin-related modifier (SUMO) proteins to substrate proteins. SUMOylation is a reversible modification, which is erased by SUMO-specific proteases (SENPs). Deregulation of SENPs leads to cellular dysfunction and is associated with various diseases, including cancer. The role of SENPs in cancer pathogenesis is expected, and thus these proteins are considered promising targets for drug design and development. In this review, we will discuss the role of SENPs, focusing on DNA repair and the cell cycle—cellular pathways malfunctioning in most cancer cells—and provide an update on advances in the development of SENP-oriented inhibitors. Abstract SUMOylation is a reversible post-translational modification (PTM) involving a covalent attachment of small ubiquitin-related modifier (SUMO) proteins to substrate proteins. SUMO-specific proteases (SENPs) are cysteine proteases with isopeptidase activity facilitating the de-conjugation of SUMO proteins and thus participating in maintaining the balance between the pools of SUMOylated and unSUMOylated proteins and in SUMO recycling. Several studies have reported that SENPs’ aberrant expression is associated with the development and progression of cancer. In this review, we will discuss the role of SENPs in the pathogenesis of cancer, focusing on DNA repair and the cell cycle—cellular pathways malfunctioning in most cancer cells. The plausible role of SENPs in carcinogenesis resulted in the design and development of their inhibitors, including synthetic protein-based, peptide-based, and small molecular weight inhibitors, as well as naturally occurring compounds. Computational methods including virtual screening have been implemented to identify a number of lead structures in recent years. Some inhibitors suppressed the proliferation of prostate cancer cells in vitro and in vivo, confirming that SENPs are suitable targets for anti-cancer treatment. Further advances in the development of SENP-oriented inhibitors are anticipated toward SENP isoform-specific molecules with therapeutic potential.
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Affiliation(s)
- Paulina Tokarz
- Correspondence: ; Tel.: +48-42-635-48-15; Fax: +48-42-635-44-84
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14
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Li J, Wu R, Yung MMH, Sun J, Li Z, Yang H, Zhang Y, Liu SS, Cheung ANY, Ngan HYS, Braisted JC, Zheng W, Wei H, Gao Y, Nemes P, Pei H, Chan DW, Li Y, Zhu W. SENP1-mediated deSUMOylation of JAK2 regulates its kinase activity and platinum drug resistance. Cell Death Dis 2021; 12:341. [PMID: 33795649 PMCID: PMC8016909 DOI: 10.1038/s41419-021-03635-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 03/09/2021] [Indexed: 02/07/2023]
Abstract
The JAK2/STAT pathway is hyperactivated in many cancers, and such hyperactivation is associated with a poor clinical prognosis and drug resistance. The mechanism regulating JAK2 activity is complex. Although translocation of JAK2 between nucleus and cytoplasm is an important regulatory mechanism, how JAK2 translocation is regulated and what is the physiological function of this translocation remain largely unknown. Here, we found that protease SENP1 directly interacts with and deSUMOylates JAK2, and the deSUMOylation of JAK2 leads to its accumulation at cytoplasm, where JAK2 is activated. Significantly, this novel SENP1/JAK2 axis is activated in platinum-resistant ovarian cancer in a manner dependent on a transcription factor RUNX2 and activated RUNX2/SENP1/JAK2 is critical for platinum-resistance in ovarian cancer. To explore the application of anti-SENP1/JAK2 for treatment of platinum-resistant ovarian cancer, we found SENP1 deficiency or treatment by SENP1 inhibitor Momordin Ic significantly overcomes platinum-resistance of ovarian cancer. Thus, this study not only identifies a novel mechanism regulating JAK2 activity, but also provides with a potential approach to treat platinum-resistant ovarian cancer by targeting SENP1/JAK2 pathway.
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Affiliation(s)
- Jing Li
- Department of Biochemistry and Molecular Medicine, The George Washington University School of Medicine and Health Sciences, Washington, DC, 20037, USA
- GW Cancer Center, The George Washington University, Washington, DC, 20052, USA
| | - Ruiqin Wu
- Department of Biochemistry and Molecular Medicine, The George Washington University School of Medicine and Health Sciences, Washington, DC, 20037, USA
- GW Cancer Center, The George Washington University, Washington, DC, 20052, USA
| | - Mingo M H Yung
- Department of Obstetrics and Gynecology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Jing Sun
- Department of Biochemistry and Molecular Medicine, The George Washington University School of Medicine and Health Sciences, Washington, DC, 20037, USA
- GW Cancer Center, The George Washington University, Washington, DC, 20052, USA
| | - Zhuqing Li
- Department of Biochemistry and Molecular Medicine, The George Washington University School of Medicine and Health Sciences, Washington, DC, 20037, USA
- GW Cancer Center, The George Washington University, Washington, DC, 20052, USA
| | - Hai Yang
- Department of Biochemistry and Molecular Medicine, The George Washington University School of Medicine and Health Sciences, Washington, DC, 20037, USA
- GW Cancer Center, The George Washington University, Washington, DC, 20052, USA
| | - Yi Zhang
- Department of Biochemistry and Molecular Medicine, The George Washington University School of Medicine and Health Sciences, Washington, DC, 20037, USA
- GW Cancer Center, The George Washington University, Washington, DC, 20052, USA
| | - Stephanie S Liu
- Department of Obstetrics and Gynecology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Annie N Y Cheung
- Department of Obstetrics and Gynecology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Hextan Y S Ngan
- Department of Obstetrics and Gynecology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - John C Braisted
- National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Wei Zheng
- National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Huiqiang Wei
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Peking Union Medical College & Chinese Academy of Medical Sciences, Tianjin, 300192, China
| | - Yingtang Gao
- Key Laboratory of Artificial Cell, Institute for Hepatobiliary Disease, Tianjin Third Central Hospital, Tianjin, 300170, China
| | - Peter Nemes
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD, 20742, USA
| | - Huadong Pei
- Department of Biochemistry and Molecular Medicine, The George Washington University School of Medicine and Health Sciences, Washington, DC, 20037, USA
- GW Cancer Center, The George Washington University, Washington, DC, 20052, USA
| | - David W Chan
- Department of Obstetrics and Gynecology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China.
| | - Yiliang Li
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Peking Union Medical College & Chinese Academy of Medical Sciences, Tianjin, 300192, China.
| | - Wenge Zhu
- Department of Biochemistry and Molecular Medicine, The George Washington University School of Medicine and Health Sciences, Washington, DC, 20037, USA.
- GW Cancer Center, The George Washington University, Washington, DC, 20052, USA.
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15
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Samaržija I. Post-Translational Modifications That Drive Prostate Cancer Progression. Biomolecules 2021; 11:247. [PMID: 33572160 PMCID: PMC7915076 DOI: 10.3390/biom11020247] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 02/04/2021] [Accepted: 02/06/2021] [Indexed: 02/07/2023] Open
Abstract
While a protein primary structure is determined by genetic code, its specific functional form is mostly achieved in a dynamic interplay that includes actions of many enzymes involved in post-translational modifications. This versatile repertoire is widely used by cells to direct their response to external stimuli, regulate transcription and protein localization and to keep proteostasis. Herein, post-translational modifications with evident potency to drive prostate cancer are explored. A comprehensive list of proteome-wide and single protein post-translational modifications and their involvement in phenotypic outcomes is presented. Specifically, the data on phosphorylation, glycosylation, ubiquitination, SUMOylation, acetylation, and lipidation in prostate cancer and the enzymes involved are collected. This type of knowledge is especially valuable in cases when cancer cells do not differ in the expression or mutational status of a protein, but its differential activity is regulated on the level of post-translational modifications. Since their driving roles in prostate cancer, post-translational modifications are widely studied in attempts to advance prostate cancer treatment. Current strategies that exploit the potential of post-translational modifications in prostate cancer therapy are presented.
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Affiliation(s)
- Ivana Samaržija
- Laboratory for Epigenomics, Division of Molecular Medicine, Ruđer Bošković Institute, 10000 Zagreb, Croatia
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16
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Bahnassy S, Thangavel H, Quttina M, Khan AF, Dhanyalayam D, Ritho J, Karami S, Ren J, Bawa-Khalfe T. Constitutively active androgen receptor supports the metastatic phenotype of endocrine-resistant hormone receptor-positive breast cancer. Cell Commun Signal 2020; 18:154. [PMID: 32948192 PMCID: PMC7501670 DOI: 10.1186/s12964-020-00649-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 08/24/2020] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Hormone receptor positive (HR+) breast cancer (BCa) is the most frequently diagnosed subtype. Acquired and intrinsic resistance to conventional endocrine therapy (ET) commonly occurs and prompts incurable metastatic disease. Hence, ET-resistant (ET-R) HR+ BCa presents a therapeutic challenge. Previous studies show elevated androgen receptor (AR) that supports resistance to ET tamoxifen and correlates with HR+ BCa metastasis. Yet surprisingly, studies with AR-blocker enzalutamide (Enz) in ET-R HR+ BCa present conflicting results. We now report that a constitutively active, unique from canonical Enz-targeted, AR accumulates in endocrine resistant HR+ BCa cells. METHODS AR protein profiles in acquired and intrinsic ET-R HR + -BCa were defined with cell-free modification tests, in-house in-vivo SUMOylation assays, and PLA imaging. Genomic activity of native AR and modified-AR mimetic was tested with reporter assays and limited transcriptome analysis. Spheroid growth and migration studies were used to evaluate inhibitory actions of Enz and combinatorial therapy. RESULTS Sustained higher molecular weight SUMO-modified AR (SUMO-AR) persists in acquired and intrinsic ET-R BCa cell lines. Concurrently, SUMO isoforms and global SUMO-modified proteome also accumulates in the same cell lines. We identified AR as a novel substrate for the SUMO-E3 ligase HSPB1/Hsp27. Independent of ligand, SUMO-AR is resilient to ubiquitin-mediated proteasomal degradation, enriched in the nucleus, readily chromatin-bound, and transcriptionally active. Constitutive SUMO-AR initiates a gene-expression profile that favors epithelial-mesenchymal transition. Enz combined with a SUMO inhibitor attenuates migration and metastatic phenotype of ET-R HR+ BCa. CONCLUSION Targeting both unmodified and SUMO-modified AR prevents the metastatic progression of HR+ BCa with ET-R. Video abstract.
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Affiliation(s)
- Shaymaa Bahnassy
- Center for Nuclear Receptors & Cell Signaling, Department of Biology & Biochemistry, University of Houston, 3517 Cullen Blvd, SERC Bldg, Rm 3010, Houston, TX 77204-5056 USA
| | - Hariprasad Thangavel
- Department of Pharmacy Practice and Translational Research, College of Pharmacy, University of Houston, Houston, TX 77204 USA
| | - Maram Quttina
- Center for Nuclear Receptors & Cell Signaling, Department of Biology & Biochemistry, University of Houston, 3517 Cullen Blvd, SERC Bldg, Rm 3010, Houston, TX 77204-5056 USA
| | - Ashfia Fatima Khan
- Center for Nuclear Receptors & Cell Signaling, Department of Biology & Biochemistry, University of Houston, 3517 Cullen Blvd, SERC Bldg, Rm 3010, Houston, TX 77204-5056 USA
| | - Dhanya Dhanyalayam
- Center for Nuclear Receptors & Cell Signaling, Department of Biology & Biochemistry, University of Houston, 3517 Cullen Blvd, SERC Bldg, Rm 3010, Houston, TX 77204-5056 USA
| | - Joan Ritho
- Department of Biology, Stanford University, Stanford, CA 94305 USA
| | - Samaneh Karami
- Center for Nuclear Receptors & Cell Signaling, Department of Biology & Biochemistry, University of Houston, 3517 Cullen Blvd, SERC Bldg, Rm 3010, Houston, TX 77204-5056 USA
| | - Jing Ren
- Center for Precision Medicine, Department of Medicine, University of Missouri, Columbia, MO 65212 USA
| | - Tasneem Bawa-Khalfe
- Center for Nuclear Receptors & Cell Signaling, Department of Biology & Biochemistry, University of Houston, 3517 Cullen Blvd, SERC Bldg, Rm 3010, Houston, TX 77204-5056 USA
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17
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Tao Y, Li R, Shen C, Li J, Zhang Q, Ma Z, Wang F, Wang Z. SENP1 is a crucial promotor for hepatocellular carcinoma through deSUMOylation of UBE2T. Aging (Albany NY) 2020; 12:1563-1576. [PMID: 31969492 PMCID: PMC7053586 DOI: 10.18632/aging.102700] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 12/27/2019] [Indexed: 12/12/2022]
Abstract
The cooperative roles of SENP1 and UBE2T in development and progression of hepatocellular carcinoma (HCC) are still unknown. The expression levels of SENP1 and UBE2T were evaluated in clinical specimens and HCC cells. The relationship between clinicopathological features and SENP1 were analyzed. We constructed the HepG2-SENP1 knockout cell model and explored the functions of SENP1 and UBE2T in HCC development. UBE2T was confirmed as a novel deSUMOylation target of SENP1. Upregulation of SENP1 and UBE2T were observed in HCC tissues and most hepatoma cell lines, and their expression levels were proved to be positively related. Knockout of SENP1 resulted in impaired growth, migration and invasion, and enhanced apoptosis in vitro, as well as inhibition of tumor growth in vivo. Furthermore, we demonstrated that SENP1 could directly deSUMOylate UBE2T thereby increasing its expression and activating Akt pathway. Functional studies showed that UBE2T overexpression or K8R mutation promoted cell growth, migration and invasion. In conclusion, our study demonstrated that SENP1 and UBE2T were positively related and functioned as tumor promoters. The carcinogenesis of SENP1 is mediated by deSUMOylation of UBE2T and the UBE2T/Akt pathway. Notably, UBE2T was identified as a novel deSUMOylation target of SENP1 in this study for the first time.
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Affiliation(s)
- Yifeng Tao
- Department of General Surgery and Liver Transplant Center, Huashan Hospital, Fudan University, Shanghai 200040, China.,Institute of Organ Transplantation, Fudan University, Shanghai 200040, China
| | - Ruidong Li
- Department of General Surgery and Liver Transplant Center, Huashan Hospital, Fudan University, Shanghai 200040, China.,Institute of Organ Transplantation, Fudan University, Shanghai 200040, China
| | - Conghuan Shen
- Department of General Surgery and Liver Transplant Center, Huashan Hospital, Fudan University, Shanghai 200040, China.,Institute of Organ Transplantation, Fudan University, Shanghai 200040, China
| | - Jianhua Li
- Department of General Surgery and Liver Transplant Center, Huashan Hospital, Fudan University, Shanghai 200040, China.,Institute of Organ Transplantation, Fudan University, Shanghai 200040, China
| | - Quanbao Zhang
- Department of General Surgery and Liver Transplant Center, Huashan Hospital, Fudan University, Shanghai 200040, China.,Institute of Organ Transplantation, Fudan University, Shanghai 200040, China
| | - Zhenyu Ma
- Department of General Surgery and Liver Transplant Center, Huashan Hospital, Fudan University, Shanghai 200040, China.,Institute of Organ Transplantation, Fudan University, Shanghai 200040, China
| | - Feifei Wang
- Bioscience Research Center, Shanghai 200120, China
| | - Zhengxin Wang
- Department of General Surgery and Liver Transplant Center, Huashan Hospital, Fudan University, Shanghai 200040, China.,Institute of Organ Transplantation, Fudan University, Shanghai 200040, China
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18
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Ballar Kirmizibayrak P, Erbaykent-Tepedelen B, Gozen O, Erzurumlu Y. Divergent Modulation of Proteostasis in Prostate Cancer. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1233:117-151. [PMID: 32274755 DOI: 10.1007/978-3-030-38266-7_5] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Proteostasis regulates key cellular processes such as cell proliferation, differentiation, transcription, and apoptosis. The mechanisms by which proteostasis is regulated are crucial and the deterioration of cellular proteostasis has been significantly associated with tumorigenesis since it specifically targets key oncoproteins and tumor suppressors. Prostate cancer (PCa) is the second most common cause of cancer death in men worldwide. Androgens mediate one of the most central signaling pathways in all stages of PCa via the androgen receptor (AR). In addition to their regulation by hormones, PCa cells are also known to be highly secretory and are particularly prone to ER stress as proper ER function is essential. Alterations in various complex signaling pathways and cellular processes including cell cycle control, transcription, DNA repair, apoptosis, cell adhesion, epithelial-mesenchymal transition (EMT), and angiogenesis are critical factors influencing PCa development through key molecular changes mainly by posttranslational modifications in PCa-related proteins, including AR, NKX3.1, PTEN, p53, cyclin D1, and p27. Several ubiquitin ligases like MDM2, Siah2, RNF6, CHIP, and substrate-binding adaptor SPOP; deubiquitinases such as USP7, USP10, USP26, and USP12 are just some of the modifiers involved in the regulation of these key proteins via ubiquitin-proteasome system (UPS). Some ubiquitin-like modifiers, especially SUMOs, have been also closely associated with PCa. On the other hand, the proteotoxicity resulting from misfolded proteins and failure of ER adaptive capacity induce unfolded protein response (UPR) that is an indispensable signaling mechanism for PCa development. Lastly, ER-associated degradation (ERAD) also plays a crucial role in prostate tumorigenesis. In this section, the relationship between prostate cancer and proteostasis will be discussed in terms of UPS, UPR, SUMOylation, ERAD, and autophagy.
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Affiliation(s)
| | | | - Oguz Gozen
- Faculty of Medicine, Department of Physiology, Ege University, Izmir, Turkey
| | - Yalcin Erzurumlu
- Faculty of Pharmacy, Department of Biochemistry, Suleyman Demirel University, Isparta, Turkey
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19
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Wen S, Niu Y, Huang H. Posttranslational regulation of androgen dependent and independent androgen receptor activities in prostate cancer. Asian J Urol 2019; 7:203-218. [PMID: 33024699 PMCID: PMC7525085 DOI: 10.1016/j.ajur.2019.11.001] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 08/21/2019] [Accepted: 10/11/2019] [Indexed: 12/12/2022] Open
Abstract
Prostate cancer (PCa) is the most commonly diagnosed cancer among men in western countries. Androgen receptor (AR) signaling plays key roles in the development of PCa. Androgen deprivation therapy (ADT) remains the standard therapy for advanced PCa. In addition to its ligand androgen, accumulating evidence indicates that posttranscriptional modification is another important mechanism to regulate AR activities during the progression of PCa, especially in castration resistant prostate cancer (CRPC). To date, a number of posttranscriptional modifications of AR have been identified, including phosphorylation (e.g. by CDK1), acetylation (e.g. by p300 and recognized by BRD4), methylation (e.g. by EZH2), ubiquitination (e.g. by SPOP), and SUMOylation (e.g. by PIAS1). These modifications are essential for the maintenance of protein stability, nuclear localization and transcriptional activity of AR. This review summarizes posttranslational modifications that influence androgen-dependent and -independent activities of AR, PCa progression and therapy resistance. We further emphasize that in addition to androgen, posttranslational modification is another important way to regulate AR activity, suggesting that targeting AR posttranslational modifications, such as proteolysis targeting chimeras (PROTACs) of AR, represents a potential and promising alternate for effective treatment of CRPC. Potential areas to be investigated in the future in the field of AR posttranslational modifications are also discussed.
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Affiliation(s)
- Simeng Wen
- Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin Medical University, Tianjin, China.,Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine and Science, Rochester, USA
| | - Yuanjie Niu
- Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin Medical University, Tianjin, China
| | - Haojie Huang
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine and Science, Rochester, USA.,Department of Urology, Mayo Clinic College of Medicine and Science, Rochester, USA.,Mayo Clinic Cancer Center, Mayo Clinic College of Medicine and Science, Rochester, USA
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20
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Jia Y, Claessens LA, Vertegaal ACO, Ovaa H. Chemical Tools and Biochemical Assays for SUMO Specific Proteases (SENPs). ACS Chem Biol 2019; 14:2389-2395. [PMID: 31361113 PMCID: PMC6862319 DOI: 10.1021/acschembio.9b00402] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
SUMOylation is a reversible and highly dynamic post-translational modification of target proteins by small ubiquitin-like modifiers (SUMO). It is orchestrated by SUMO-activating, -conjugating, and -ligating enzymes in a sequential manner and is important in regulating a myriad of predominantly nuclear processes. DeSUMOylation is achieved by SUMO-specific proteases (SENPs). Deregulation of SUMOylation and deSUMOylation results in cellular dysfunction and is linked to various diseases, including cancer. In recent years, SENPs have emerged as potential therapeutic targets. In this review, we will describe the inhibitors and activity-based probes of SENPs. Furthermore, we will summarize the biochemical assays available for evaluating the activity of SENPs to identify inhibitors.
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Affiliation(s)
- Yuqing Jia
- Department of Cell and Chemical Biology, Oncode Institute, Leiden University Medical Center, Leiden, The Netherlands
| | - Laura A. Claessens
- Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, The Netherlands
| | - Alfred C. O. Vertegaal
- Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, The Netherlands
| | - Huib Ovaa
- Department of Cell and Chemical Biology, Oncode Institute, Leiden University Medical Center, Leiden, The Netherlands
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21
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Ambaye ND. Noncovalent structure of SENP1 in complex with SUMO2. Acta Crystallogr F Struct Biol Commun 2019; 75:332-339. [PMID: 31045562 PMCID: PMC6497105 DOI: 10.1107/s2053230x19004266] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 03/28/2019] [Indexed: 02/02/2023] Open
Abstract
SUMOylation is a post-translational modification in which a small ubiquitin-like molecule (SUMO) is appended to substrate proteins and is known to influence myriads of biological processes. A delicate interplay between several families of SUMOylation proteins and their substrates ensures the proper level of SUMOylation required for normal cell function. Among the SUMO proteins, SUMO2 is known to form mono-SUMOylated proteins and engage in poly-SUMO chain formation, while sentrin-specific protease 1 (SENP1) is a key enzyme in regulating both events. Determination of the SENP1-SUMO2 interaction is therefore necessary to better understand SUMOylation. In this regard, the current paper reports the noncovalent structure of SENP1 in complex with SUMO2, which was refined to a resolution of 2.62 Å with R and Rfree values of 22.92% and 27.66%, respectively. The structure shows that SENP1-SUMO2 complex formation is driven largely by polar interactions and limited hydrophobic contacts. The essential C-terminal motif (QQTGG) of SUMO2 is stabilized by a number of specific bonding interactions that enable it to protrude into the catalytic triad of SENP1 and provide the arrangement necessary for maturation of SUMO and deSUMOylation activity. Overall, the structure shows a number of structural details that pinpoint the basis of SENP1-SUMO2 complex formation.
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Affiliation(s)
- Nigus D. Ambaye
- Department of Immune-Oncology, Beckman Research Institute, City of Hope National Medical Center, 1500 East Duarte Road, Duarte, CA 91010, USA
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Lack of androgen receptor SUMOylation results in male infertility due to epididymal dysfunction. Nat Commun 2019; 10:777. [PMID: 30770815 PMCID: PMC6377611 DOI: 10.1038/s41467-019-08730-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 01/25/2019] [Indexed: 12/21/2022] Open
Abstract
Androgen receptor (AR) is regulated by SUMOylation at its transactivation domain. In vitro, the SUMOylation is linked to transcriptional repression and/or target gene-selective regulation. Here, we generated a mouse model (ArKI) in which the conserved SUMO acceptor lysines of AR are permanently abolished (ArK381R, K500R). ArKI males develop normally, without apparent defects in their systemic androgen action in reproductive tissues. However, the ArKI males are infertile. Their spermatogenesis appears unaffected, but their epididymal sperm maturation is defective, shown by severely compromised motility and fertilization capacity of the sperm. Fittingly, their epididymal AR chromatin-binding and gene expression associated with sperm maturation and function are misregulated. AR is SUMOylated in the wild-type epididymis but not in the testis, which could explain the tissue-specific response to the lack of AR SUMOylation. Our studies thus indicate that epididymal AR SUMOylation is essential for the post-testicular sperm maturation and normal reproductive capability of male mice. SUMOylation is known to regulate androgen receptor (AR) activity in cultured cells. Here, using SUMOylation-deficient AR knock-in mice, the authors demonstrate that SUMOylation is required for AR-related gene expression specifically in the epididymal tissues, but not the testis.
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Wu J, Movérare-Skrtic S, Zhang FP, Koskela A, Tuukkanen J, Palvimo JJ, Sipilä P, Poutanen M, Ohlsson C. Androgen receptor SUMOylation regulates bone mass in male mice. Mol Cell Endocrinol 2019; 479:117-122. [PMID: 30261210 DOI: 10.1016/j.mce.2018.09.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 09/22/2018] [Accepted: 09/22/2018] [Indexed: 12/18/2022]
Abstract
The crucial effects of androgens on the male skeleton are at least partly mediated via the androgen receptor (AR). In addition to hormone binding, the AR activity is regulated by post-translational modifications, including SUMOylation. SUMOylation is a reversible modification in which Small Ubiquitin-related MOdifier proteins (SUMOs) are attached to the AR and thereby regulate the activity of the AR and change its interactions with other proteins. To elucidate the importance of SUMOylation of AR for male bone metabolism, we used a mouse model devoid of the two AR SUMOylation sites (ARSUM-; K381R and K500R are substituted). Six-month-old male ARSUM- mice displayed significantly reduced trabecular bone volume fraction in the distal metaphyseal region of femur compared with wild type (WT) mice (BV/TV, -19.1 ± 4.9%, P < 0.05). The number of osteoblasts per bone perimeter was substantially reduced (-60.5 ± 7.2%, P < 0.001) while no significant effect was observed on the number of osteoclasts in the trabecular bone of male ARSUM- mice. Dynamic histomorphometric analysis of trabecular bone revealed a reduced bone formation rate (-32.6 ± 7.4%, P < 0.05) as a result of reduced mineralizing surface per bone surface in ARSUM- mice compared with WT mice (-24.3 ± 3.6%, P < 0.001). Furthermore, cortical bone thickness in the diaphyseal region of femur was reduced in male ARSUM- mice compared with WT mice (-7.3 ± 2.0%, P < 0.05). In conclusion, mice devoid of AR SUMOylation have reduced trabecular bone mass as a result of reduced bone formation. We propose that therapies enhancing AR SUMOylation might result in bone-specific anabolic effects with minimal adverse effects in other tissues.
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Affiliation(s)
- Jianyao Wu
- Centre for Bone and Arthritis Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Sofia Movérare-Skrtic
- Centre for Bone and Arthritis Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Fu-Ping Zhang
- Institute of Biomedicine and Turku Center for Disease Modeling, University of Turku, Turku, Finland
| | - Antti Koskela
- Department of Anatomy and Cell Biology, Medical Research Center, University of Oulu, Oulu, Finland
| | - Juha Tuukkanen
- Department of Anatomy and Cell Biology, Medical Research Center, University of Oulu, Oulu, Finland
| | - Jorma J Palvimo
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
| | - Petra Sipilä
- Institute of Biomedicine and Turku Center for Disease Modeling, University of Turku, Turku, Finland
| | - Matti Poutanen
- Centre for Bone and Arthritis Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden; Institute of Biomedicine and Turku Center for Disease Modeling, University of Turku, Turku, Finland
| | - Claes Ohlsson
- Centre for Bone and Arthritis Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
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24
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Wedge DC, Gundem G, Mitchell T, Woodcock DJ, Martincorena I, Ghori M, Zamora J, Butler A, Whitaker H, Kote-Jarai Z, Alexandrov LB, Van Loo P, Massie CE, Dentro S, Warren AY, Verrill C, Berney DM, Dennis N, Merson S, Hawkins S, Howat W, Lu YJ, Lambert A, Kay J, Kremeyer B, Karaszi K, Luxton H, Camacho N, Marsden L, Edwards S, Matthews L, Bo V, Leongamornlert D, McLaren S, Ng A, Yu Y, Zhang H, Dadaev T, Thomas S, Easton DF, Ahmed M, Bancroft E, Fisher C, Livni N, Nicol D, Tavaré S, Gill P, Greenman C, Khoo V, Van As N, Kumar P, Ogden C, Cahill D, Thompson A, Mayer E, Rowe E, Dudderidge T, Gnanapragasam V, Shah NC, Raine K, Jones D, Menzies A, Stebbings L, Teague J, Hazell S, Corbishley C, de Bono J, Attard G, Isaacs W, Visakorpi T, Fraser M, Boutros PC, Bristow RG, Workman P, Sander C, Hamdy FC, Futreal A, McDermott U, Al-Lazikani B, Lynch AG, Bova GS, Foster CS, Brewer DS, Neal DE, Cooper CS, Eeles RA. Sequencing of prostate cancers identifies new cancer genes, routes of progression and drug targets. Nat Genet 2018; 50:682-692. [PMID: 29662167 PMCID: PMC6372064 DOI: 10.1038/s41588-018-0086-z] [Citation(s) in RCA: 155] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 02/22/2018] [Indexed: 12/18/2022]
Abstract
Prostate cancer represents a substantial clinical challenge because it is difficult to predict outcome and advanced disease is often fatal. We sequenced the whole genomes of 112 primary and metastatic prostate cancer samples. From joint analysis of these cancers with those from previous studies (930 cancers in total), we found evidence for 22 previously unidentified putative driver genes harboring coding mutations, as well as evidence for NEAT1 and FOXA1 acting as drivers through noncoding mutations. Through the temporal dissection of aberrations, we identified driver mutations specifically associated with steps in the progression of prostate cancer, establishing, for example, loss of CHD1 and BRCA2 as early events in cancer development of ETS fusion-negative cancers. Computational chemogenomic (canSAR) analysis of prostate cancer mutations identified 11 targets of approved drugs, 7 targets of investigational drugs, and 62 targets of compounds that may be active and should be considered candidates for future clinical trials.
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Affiliation(s)
- David C Wedge
- Oxford Big Data Institute, University of Oxford, Oxford, UK.
- Cancer Genome Project, Wellcome Trust Sanger Institute, Hinxton, UK.
- Oxford NIHR Biomedical Research Centre, Oxford, UK.
| | - Gunes Gundem
- Cancer Genome Project, Wellcome Trust Sanger Institute, Hinxton, UK
- Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - Thomas Mitchell
- Cancer Genome Project, Wellcome Trust Sanger Institute, Hinxton, UK
- Department of Urology, Addenbrooke's Hospital, Cambridge, UK
- Uro-Oncology Research Group, Cancer Research UK, Cambridge Institute, Cambridge, UK
| | - Dan J Woodcock
- Oxford Big Data Institute, University of Oxford, Oxford, UK
| | | | - Mohammed Ghori
- Cancer Genome Project, Wellcome Trust Sanger Institute, Hinxton, UK
| | - Jorge Zamora
- Cancer Genome Project, Wellcome Trust Sanger Institute, Hinxton, UK
| | - Adam Butler
- Cancer Genome Project, Wellcome Trust Sanger Institute, Hinxton, UK
| | - Hayley Whitaker
- Molecular Diagnostics and Therapeutics Group, University College London, London, UK
| | | | | | - Peter Van Loo
- Cancer Genome Project, Wellcome Trust Sanger Institute, Hinxton, UK
- Cancer Genomics, The Francis Crick Institute, London, UK
| | - Charlie E Massie
- Uro-Oncology Research Group, Cancer Research UK, Cambridge Institute, Cambridge, UK
- Early Detection Programme, Cancer Research UK Cambridge Centre, Department of Oncology, University of Cambridge, Cambridge, UK
| | - Stefan Dentro
- Oxford Big Data Institute, University of Oxford, Oxford, UK
- Cancer Genome Project, Wellcome Trust Sanger Institute, Hinxton, UK
- Cancer Genomics, The Francis Crick Institute, London, UK
| | - Anne Y Warren
- Department of Histopathology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Clare Verrill
- Oxford NIHR Biomedical Research Centre, Oxford, UK
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Dan M Berney
- Centre for Molecular Oncology, Barts Cancer Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Nening Dennis
- Royal Marsden NHS Foundation Trust, London and Sutton, UK
| | - Sue Merson
- The Institute of Cancer Research, London, UK
| | - Steve Hawkins
- Uro-Oncology Research Group, Cancer Research UK, Cambridge Institute, Cambridge, UK
| | - William Howat
- Department of Histopathology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Yong-Jie Lu
- Centre for Molecular Oncology, Barts Cancer Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Adam Lambert
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Jonathan Kay
- Molecular Diagnostics and Therapeutics Group, University College London, London, UK
| | - Barbara Kremeyer
- Cancer Genome Project, Wellcome Trust Sanger Institute, Hinxton, UK
| | - Katalin Karaszi
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Hayley Luxton
- Molecular Diagnostics and Therapeutics Group, University College London, London, UK
| | - Niedzica Camacho
- Memorial Sloan-Kettering Cancer Center, New York, NY, USA
- The Institute of Cancer Research, London, UK
| | - Luke Marsden
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | | | - Lucy Matthews
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Valeria Bo
- Statistics and Computational Biology Laboratory, Cancer Research UK Cambridge Institute, Cambridge, UK
| | - Daniel Leongamornlert
- Cancer Genome Project, Wellcome Trust Sanger Institute, Hinxton, UK
- The Institute of Cancer Research, London, UK
| | - Stuart McLaren
- Cancer Genome Project, Wellcome Trust Sanger Institute, Hinxton, UK
| | - Anthony Ng
- The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Yongwei Yu
- Second Military Medical University, Shanghai, China
| | | | | | - Sarah Thomas
- Royal Marsden NHS Foundation Trust, London and Sutton, UK
| | - Douglas F Easton
- Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, Cambridge, UK
| | | | - Elizabeth Bancroft
- The Institute of Cancer Research, London, UK
- Royal Marsden NHS Foundation Trust, London and Sutton, UK
| | - Cyril Fisher
- Royal Marsden NHS Foundation Trust, London and Sutton, UK
| | - Naomi Livni
- Royal Marsden NHS Foundation Trust, London and Sutton, UK
| | - David Nicol
- Royal Marsden NHS Foundation Trust, London and Sutton, UK
| | - Simon Tavaré
- Statistics and Computational Biology Laboratory, Cancer Research UK Cambridge Institute, Cambridge, UK
| | - Pelvender Gill
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | | | - Vincent Khoo
- Royal Marsden NHS Foundation Trust, London and Sutton, UK
| | | | - Pardeep Kumar
- Royal Marsden NHS Foundation Trust, London and Sutton, UK
| | | | - Declan Cahill
- Royal Marsden NHS Foundation Trust, London and Sutton, UK
| | - Alan Thompson
- Royal Marsden NHS Foundation Trust, London and Sutton, UK
| | - Erik Mayer
- Royal Marsden NHS Foundation Trust, London and Sutton, UK
| | - Edward Rowe
- Royal Marsden NHS Foundation Trust, London and Sutton, UK
| | - Tim Dudderidge
- Royal Marsden NHS Foundation Trust, London and Sutton, UK
| | - Vincent Gnanapragasam
- Department of Urology, Addenbrooke's Hospital, Cambridge, UK
- Department of Surgical Oncology, University of Cambridge, Addenbrooke's Hospital, Cambridge, UK
| | - Nimish C Shah
- Department of Urology, Addenbrooke's Hospital, Cambridge, UK
| | - Keiran Raine
- Cancer Genome Project, Wellcome Trust Sanger Institute, Hinxton, UK
| | - David Jones
- Cancer Genome Project, Wellcome Trust Sanger Institute, Hinxton, UK
| | - Andrew Menzies
- Cancer Genome Project, Wellcome Trust Sanger Institute, Hinxton, UK
| | - Lucy Stebbings
- Cancer Genome Project, Wellcome Trust Sanger Institute, Hinxton, UK
| | - Jon Teague
- Cancer Genome Project, Wellcome Trust Sanger Institute, Hinxton, UK
| | - Steven Hazell
- Royal Marsden NHS Foundation Trust, London and Sutton, UK
| | | | | | | | | | - Tapio Visakorpi
- Institute of Biosciences and Medical Technology, BioMediTech, University of Tampere and Fimlab Laboratories, Tampere University Hospital, Tampere, Finland
| | - Michael Fraser
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Paul C Boutros
- Ontario Institute for Cancer Research, Toronto, ON, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - Robert G Bristow
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada
- Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada
| | | | - Chris Sander
- cBio Center, Dana-Farber Cancer Institute & Harvard Medical School, Boston, MA, USA
| | - Freddie C Hamdy
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Andrew Futreal
- Cancer Genome Project, Wellcome Trust Sanger Institute, Hinxton, UK
| | - Ultan McDermott
- Cancer Genome Project, Wellcome Trust Sanger Institute, Hinxton, UK
| | | | - Andrew G Lynch
- Statistics and Computational Biology Laboratory, Cancer Research UK Cambridge Institute, Cambridge, UK
- School of Mathematics and Statistics/School of Medicine, University of St. Andrews, Fife, UK
| | - G Steven Bova
- Johns Hopkins School of Medicine, Baltimore, MD, USA
- Institute of Biosciences and Medical Technology, BioMediTech, University of Tampere and Fimlab Laboratories, Tampere University Hospital, Tampere, Finland
| | | | - Daniel S Brewer
- The Institute of Cancer Research, London, UK
- Norwich Medical School, University of East Anglia, Norwich, UK
- Earlham Institute, Norwich, UK
| | - David E Neal
- Uro-Oncology Research Group, Cancer Research UK, Cambridge Institute, Cambridge, UK
- Department of Surgical Oncology, University of Cambridge, Addenbrooke's Hospital, Cambridge, UK
| | - Colin S Cooper
- The Institute of Cancer Research, London, UK
- Norwich Medical School, University of East Anglia, Norwich, UK
| | - Rosalind A Eeles
- The Institute of Cancer Research, London, UK.
- Royal Marsden NHS Foundation Trust, London and Sutton, UK.
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25
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X-Linked Spinal and Bulbar Muscular Atrophy: From Clinical Genetic Features and Molecular Pathology to Mechanisms Underlying Disease Toxicity. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1049:103-133. [PMID: 29427100 DOI: 10.1007/978-3-319-71779-1_5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Spinal and Bulbar Muscular Atrophy (SBMA) is an inherited neuromuscular disorder caused by a CAG-polyglutamine (polyQ) repeat expansion in the androgen receptor (AR) gene. Unlike other polyQ diseases, where the function of the native causative protein is unknown, the biology of AR is well understood, and this knowledge has informed our understanding of how native AR function interfaces with polyQ-AR dysfunction. Furthermore, ligand-dependent activation of AR has been linked to SBMA disease pathogenesis, and has led to a thorough study of androgen-mediated effects on polyQ-AR stability, degradation, and post-translational modifications, as well as their roles in the disease process. Transcriptional dysregulation, proteostasis dysfunction, and mitochondrial abnormalities are central to polyQ-AR neurotoxicity, most likely via a 'change-of-function' mechanism. Intriguingly, recent work has demonstrated a principal role for skeletal muscle in SBMA disease pathogenesis, indicating that polyQ-AR toxicity initiates in skeletal muscle and results in secondary motor neuron demise. The existence of robust animal models for SBMA has permitted a variety of preclinical trials, driven by recent discoveries of altered cellular processes, and some of this preclinical work has led to human clinical trials. In this chapter, we review SBMA clinical features and disease biology, discuss our current understanding of the cellular and molecular basis of SBMA pathogenesis, and highlight ongoing efforts toward therapy development.
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Choi BH, Chen C, Philips M, Dai W. RAS GTPases are modified by SUMOylation. Oncotarget 2017; 9:4440-4450. [PMID: 29435114 PMCID: PMC5796985 DOI: 10.18632/oncotarget.23269] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2017] [Accepted: 11/19/2017] [Indexed: 01/31/2023] Open
Abstract
RAS proteins are GTPases that participate in multiple signal cascades, regulating crucial cellular processes including cell survival, proliferation, differentiation, and autophagy. Mutations or deregulated activities of RAS are frequently the driving force for oncogenic transformation and tumorigenesis. Given the important roles of the small ubiquitin-related modifier (SUMO) pathway in controlling the stability, activity, or subcellular localization of key cellular regulators, we investigated here whether RAS proteins are posttranslationally modified (i.e. SUMOylated) by the SUMO pathway. We observed that all three RAS protein isoforms (HRAS, KRAS, and NRAS) were modified by the SUMO3 protein. SUMOylation of KRAS protein, either endogenous or ectopically expressed, was observed in multiple cell lines. The SUMO3 modification of KRAS proteins could be removed by SUMO1/sentrin-specific peptidase 1 (SENP1) and SENP2, but not by SENP6, indicating that RAS SUMOylation is a reversible process. A conserved residue in RAS, Lys-42, was a site that mediates SUMOylation. Results from biochemical and molecular studies indicated that the SUMO-E3 ligase PIASγ specifically interacts with RAS and promotes its SUMOylation. Moreover, SUMOylation of RAS appeared to be associated with its activation. In summary, our study reveals a new posttranslational modification for RAS proteins. Since we found that HRAS, KRAS, and NRAS can all be SUMOylated, we propose that SUMOylation might represent a mechanism by which RAS activities are controlled.
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Affiliation(s)
- Byeong Hyeok Choi
- Department of Environmental Medicine, New York University Langone Medical Center, New York, NY, USA
| | - Changyan Chen
- Center for Drug Discovery, Northeastern University, Boston, MA, USA
| | - Mark Philips
- Department of Pathology, New York University Langone Medical Center, New York, NY, USA
| | - Wei Dai
- Department of Environmental Medicine, New York University Langone Medical Center, New York, NY, USA.,Department of Biochemistry and Molecular Pharmacology, New York University Langone Medical Center, New York, NY, USA
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27
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Zhou GQ, Han F, Shi ZL, Yu L, Li XF, Yu C, Shen CL, Wan DW, Zhu XG, Li R, He SB. miR-133a-3p Targets SUMO-Specific Protease 1 to Inhibit Cell Proliferation and Cell Cycle Progress in Colorectal Cancer. Oncol Res 2017; 26:795-800. [PMID: 28748780 PMCID: PMC7844762 DOI: 10.3727/096504017x15004613574679] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Dysregulation of SUMO-specific protease 1 (SENP1) expression has been reported in several kinds of cancer, including human colorectal and prostate cancers, proposing SENP1 as an oncogene with a critical role in cancer progression. miR-133a-3p has been reported as a tumor suppressor in several malignant neoplasias. However, the precise molecular mechanisms underlying its role in colorectal cancer remain largely unknown. The aim of this work was to investigate the relationship between miR-133a-3p and SENP1 in colorectal cancer cells. We found that miR-133a-3p expression was downregulated in colorectal cancer tissues. In silico analyses indicated that SENP1 is one of the target genes of miR-133a-3p. Overexpression of miR-133a-3p mimics was able to inhibit cell growth with G1 arrest of colorectal cancer cells. Overexpression of miR-133a-3p antisense promoted cell growth of colorectal cancer cells. The luciferase reporter experiments showed that miR-133a-3p regulated the expression of SENP1 by combining with its 3′-UTR and resulted in downregulation of SENP1 and upregulation of CDK inhibitors such as p16, p19, p21, and p27. These results suggest that the miR-133a-3p–SENP1 axis might play a role in cell proliferation and cell cycle regulation of colorectal cancer cells.
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Affiliation(s)
- Guo-Qiang Zhou
- Department of Gastrointestinal Surgery, Changshu No. 2 Hospital, Suzhou, P.R. China
| | - Fu Han
- Department of Gastrointestinal Surgery, Changshu No. 2 Hospital, Suzhou, P.R. China
| | - Zhi-Liang Shi
- Department of Gastrointestinal Surgery, Changshu No. 2 Hospital, Suzhou, P.R. China
| | - Liang Yu
- Department of Gastrointestinal Surgery, Changshu No. 2 Hospital, Suzhou, P.R. China
| | - Xue-Feng Li
- Department of Gastrointestinal Surgery, Changshu No. 2 Hospital, Suzhou, P.R. China
| | - Cheng Yu
- Department of Gastrointestinal Surgery, Changshu No. 2 Hospital, Suzhou, P.R. China
| | - Cheng-Long Shen
- Department of Gastrointestinal Surgery, Changshu No. 2 Hospital, Suzhou, P.R. China
| | - Dai-Wei Wan
- Department of General Surgery, The First Affiliated Hospital of Soochow University, Suzhou, P.R. China
| | - Xin-Guo Zhu
- Department of General Surgery, The First Affiliated Hospital of Soochow University, Suzhou, P.R. China
| | - Rui Li
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, P.R. China
| | - Song-Bing He
- Department of General Surgery, The First Affiliated Hospital of Soochow University, Suzhou, P.R. China
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28
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SUMO-Specific Cysteine Protease 1 Promotes Epithelial Mesenchymal Transition of Prostate Cancer Cells via Regulating SMAD4 deSUMOylation. Int J Mol Sci 2017; 18:ijms18040808. [PMID: 28417919 PMCID: PMC5412392 DOI: 10.3390/ijms18040808] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 04/02/2017] [Accepted: 04/07/2017] [Indexed: 01/02/2023] Open
Abstract
In advanced prostate cancer, small ubiquitin-like modifier (SUMO)-specific cysteine protease 1 (SENP1) is up-regulated. However, the role of SENP1 in regulating deSUMOylation of TGF-β/SMADs signaling is unknown. In this study, we developed a lentiviral vector, PLKO.1-shSENP1, to silence SENP1 in prostate cancer cells with high metastatic characteristics (PC3M). Likewise, we also created an adenovirus vector, Ad5/F11p-SENP1 to over-express SENP1 in prostate cancer cells with low metastatic potential (LNCaP). We showed that silencing of SENP1 promoted cellular apoptosis, and inhibited proliferation and migration of PC3M cells. Moreover, SENP1 silencing increased the SMAD4 expression at protein level, up-regulated E-cadherin and down-regulated Vimentin expression, indicating the inhibition of epithelial mesenchymal transition (EMT). Furthermore, SMAD4 interference abolished SENP1-mediated up-regulation of E-cadherin, suggesting that SENP1 regulated E-cadherin expression via SMAD4. SENP1 over-expression in LNCaP cells reduced SMAD4 protein, and promoted EMT via decreasing E-cadherin and increasing Vimentin. Moreover, down-regulation of SMAD4 and E-cadherin were blocked, after transfection with two SUMOylation sites mutated SMAD4, suggesting that SENP1 might reduce SMAD4 levels to regulate E-cadherin expression via deSUMOylation of SMAD4. In conclusion, SENP1 deSUMOylated SMAD4 to promote EMT via up-regulating E-cadherin in prostate cancer cells. Therefore, SENP1 is a potential target for treatment of advanced prostate cancer.
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30
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Wang Z, Jin J, Zhang J, Wang L, Cao J. Depletion of SENP1 suppresses the proliferation and invasion of triple-negative breast cancer cells. Oncol Rep 2016; 36:2071-8. [DOI: 10.3892/or.2016.5036] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Accepted: 08/05/2016] [Indexed: 11/05/2022] Open
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31
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Vishwamitra D, Curry CV, Shi P, Alkan S, Amin HM. SUMOylation Confers Posttranslational Stability on NPM-ALK Oncogenic Protein. Neoplasia 2016; 17:742-754. [PMID: 26476082 PMCID: PMC4611074 DOI: 10.1016/j.neo.2015.09.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 09/07/2015] [Accepted: 09/15/2015] [Indexed: 01/09/2023] Open
Abstract
Nucleophosmin-anaplastic lymphoma kinase–expressing (NPM-ALK+) T-cell lymphoma is an aggressive form of cancer that commonly affects children and adolescents. The expression of NPM-ALK chimeric oncogene results from the chromosomal translocation t(2;5)(p23;q35) that causes the fusion of the ALK and NPM genes. This translocation generates the NPM-ALK protein tyrosine kinase that forms the constitutively activated NPM-ALK/NPM-ALK homodimers. In addition, NPM-ALK is structurally associated with wild-type NPM to form NPM/NPM-ALK heterodimers, which can translocate to the nucleus. The mechanisms that sustain the stability of NPM-ALK are not fully understood. SUMOylation is a posttranslational modification that is characterized by the reversible conjugation of small ubiquitin-like modifiers (SUMOs) with target proteins. SUMO competes with ubiquitin for substrate binding and therefore, SUMOylation is believed to protect target proteins from proteasomal degradation. Moreover, SUMOylation contributes to the subcellular distribution of target proteins. Herein, we found that the SUMOylation pathway is deregulated in NPM-ALK+ T-cell lymphoma cell lines and primary lymphoma tumors from patients. We also identified Lys24 and Lys32 within the NPM domain as the sites where NPM-ALK conjugates with SUMO-1 and SUMO-3. Importantly, antagonizing SUMOylation by the SENP1 protease decreased the accumulation of NPM-ALK and suppressed lymphoma cell viability, proliferation, and anchorage-independent colony formation. One possible mechanism for the SENP1-mediated decrease in NPM-ALK levels was the increase in NPM-ALK association with ubiquitin, which facilitates its degradation. Our findings propose a model in which aberrancies in SUMOylation contribute to the pathogenesis of NPM-ALK+ T-cell lymphoma. Unraveling such pathogenic mechanisms may lead to devising novel strategies to eliminate this aggressive neoplasm.
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Affiliation(s)
- Deeksha Vishwamitra
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX.
| | - Choladda V Curry
- Department of Pathology and Immunology, Baylor College of Medicine and Texas Children's Hospital, Houston, TX
| | - Ping Shi
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China
| | - Serhan Alkan
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, CA
| | - Hesham M Amin
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX; The University of Texas Graduate School of Biomedical Sciences, Houston, TX.
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Zhang QS, Zhang M, Huang XJ, Liu XJ, Li WP. Downregulation of SENP1 inhibits cell proliferation, migration and promotes apoptosis in human glioma cells. Oncol Lett 2016; 12:217-221. [PMID: 27347128 DOI: 10.3892/ol.2016.4558] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Accepted: 04/01/2016] [Indexed: 12/18/2022] Open
Abstract
Small ubiquitin-related modifier protein (SUMO) is an evolutionarily conserved protein in a broad range of eukaryotic organisms. De-SUMOylation, the reverse reaction of SUMOylation, is regulated by a family of SUMO-specific proteases (SENPs). SENP1 is a member of the de-SUMOylation protease family involved in the de-SUMOylation of a variety of SUMOylated proteins. The present study demonstrates that small hairpin RNA (shRNA)-mediated downregulation of SENP1 inhibits cell proliferation and migration, and promotes apoptosis in human glioma cells. Firstly, LN-299 cells were transfected with a plasmid expressing SENP1 shRNA (pGenesil-1-SENP1). The messenger RNA and protein expression of SENP1 was detected by reverse transcription-quantitative polymerase chain reaction and western blot analysis, respectively. Cell proliferation in vitro was assessed using a methyl thiazolyl tetrazolium assay. Flow cytometry (FCM) was used to detect the apoptosis of LN-299 cells. The effect of the downregulation of SENP1 on cell migration was detected by a Transwell migration system. The present results showed that, compared with the control shRNA group, the expression of SENP1 was significantly reduced in the SENP1 shRNA group. The proliferation was markedly inhibited in the SENP1 shRNA group. FCM findings revealed that apoptosis increased significantly in the SENP1 shRNA group. In addition, it was found that downregulation of SENP1 evidently suppressed tumor cell migration. Downregulation of SENP1 expression inhibited the proliferation and migration and promoted apoptosis in LN-299 cells. These results indirectly demonstrate that SENP1 is likely to play a critical role in human glioma cells.
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Affiliation(s)
- Qiu-Sheng Zhang
- Department of Neurosurgery, Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong 518035, P.R. China
| | - Meng Zhang
- Department of Neurosurgery, Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong 518035, P.R. China
| | - Xian-Jian Huang
- Department of Neurosurgery, Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong 518035, P.R. China
| | - Xiao-Jia Liu
- Department of Neurosurgery, Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong 518035, P.R. China
| | - Wei-Ping Li
- Department of Neurosurgery, Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong 518035, P.R. China
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Xiang-Ming Y, Zhi-Qiang X, Ting Z, Jian W, Jian P, Li-Qun Y, Ming-Cui F, Hong-Liang X, Xu C, Yun Z. SENP1 regulates cell migration and invasion in neuroblastoma. Biotechnol Appl Biochem 2015; 63:435-40. [PMID: 25816890 DOI: 10.1002/bab.1375] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Accepted: 03/20/2015] [Indexed: 12/20/2022]
Affiliation(s)
- Yan Xiang-Ming
- Department of Surgery, Childrens' Hospital Affiliated to Soochow University, Soochow University, Suzhou, People's Republic of China
| | - Xu Zhi-Qiang
- Department of Pediatric, Shanghai Tongren Hospital, Shanghai, People's Republic of China
| | - Zhang Ting
- Department of Surgery, Childrens' Hospital Affiliated to Soochow University, Soochow University, Suzhou, People's Republic of China
| | - Wang Jian
- Department of Surgery, Childrens' Hospital Affiliated to Soochow University, Soochow University, Suzhou, People's Republic of China
| | - Pan Jian
- Department of Surgery, Childrens' Hospital Affiliated to Soochow University, Soochow University, Suzhou, People's Republic of China
| | - Yuan Li-Qun
- Department of Neurosurgery, The Second Affiliated Hospital of Soochow University, Soochow University, Suzhou, People's Republic of China
| | - Fu Ming-Cui
- Department of Surgery, Childrens' Hospital Affiliated to Soochow University, Soochow University, Suzhou, People's Republic of China
| | - Xia Hong-Liang
- Department of Surgery, Childrens' Hospital Affiliated to Soochow University, Soochow University, Suzhou, People's Republic of China
| | - Cao Xu
- Department of Surgery, Childrens' Hospital Affiliated to Soochow University, Soochow University, Suzhou, People's Republic of China
| | - Zhou Yun
- Department of Surgery, Childrens' Hospital Affiliated to Soochow University, Soochow University, Suzhou, People's Republic of China
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Burdelski C, Menan D, Tsourlakis MC, Kluth M, Hube-Magg C, Melling N, Minner S, Koop C, Graefen M, Heinzer H, Wittmer C, Sauter G, Simon R, Schlomm T, Steurer S, Krech T. The prognostic value of SUMO1/Sentrin specific peptidase 1 (SENP1) in prostate cancer is limited to ERG-fusion positive tumors lacking PTEN deletion. BMC Cancer 2015. [PMID: 26202067 PMCID: PMC4512145 DOI: 10.1186/s12885-015-1555-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Background Posttranscriptional protein modification by SUMOylation plays an important role in tumor development and progression. In the current study we analyzed prevalence and prognostic impact of the de-SUMOylation enzyme SENP1 in prostate cancer. Methods SENP1 expression was analyzed by immunohistochemistry on a tissue microarray containing more than 12,400 prostate cancer specimens. Results were compared to tumor phenotype, ERG status, genomic deletions of 3p, 5q, 6q and PTEN, and biochemical recurrence. Results SENP1 immunostaining was detectable in 34.5 % of 9,516 interpretable cancers and considered strong in 7.3 %, moderate in 14.9 % and weak in 12.3 % of cases. Strong SENP1 expression was linked to advanced pT stage (p < 0.0001), high Gleason grade (p < 0.0001), positive lymph node status (p = 0.0019), high pre-operative PSA levels (p = 0.0037), and PSA recurrence (p < 0.0001). SENP1 expression was strongly associated with positive ERG fusion status as determined by both in situ hybridization (FISH) and immunohistochemistry as well as with PTEN deletions. Detectable SENP1 immunostaining was found in 41 % of ERG positive and in 47 % of PTEN deleted cancers but in only 30 % of ERG negative and 30 % of PTEN non-deleted cancers (p < 0.0001 each). Deletions of 3p, 5q, and 6q were unrelated to SENP1 expression. Subset analyses revealed that the prognostic impact of SENP1 expression was solely driven by the subgroup of ERG positive, PTEN undeleted cancers. In this subgroup, the prognostic role of SENP1 expression was independent of the preoperative PSA level, tumor stage, Gleason grade, and the status of the resection margin. Conclusions SENP1 expression has strong prognostic impact in a molecularly defined subset of cancers. This is per se not surprising as the biologic impact of each individual molecular event is likely to be dependent on its cellular environment. However, such findings challenge the concept of finding clinically relevant molecular signatures that are equally applicable to all prostate cancers. Electronic supplementary material The online version of this article (doi:10.1186/s12885-015-1555-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Christoph Burdelski
- General, Visceral and Thoracic Surgery Department and Clinic, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - Devi Menan
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | | | - Martina Kluth
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - Claudia Hube-Magg
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - Nathaniel Melling
- General, Visceral and Thoracic Surgery Department and Clinic, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - Sarah Minner
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - Christina Koop
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - Markus Graefen
- Martini-Clinic, Prostate Cancer Center, University Medical Center Hamburg- Eppendorf, Martinistr. 25, 20246, Hamburg, Germany.
| | - Hans Heinzer
- Martini-Clinic, Prostate Cancer Center, University Medical Center Hamburg- Eppendorf, Martinistr. 25, 20246, Hamburg, Germany.
| | - Corinna Wittmer
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - Guido Sauter
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - Ronald Simon
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - Thorsten Schlomm
- Martini-Clinic, Prostate Cancer Center, University Medical Center Hamburg- Eppendorf, Martinistr. 25, 20246, Hamburg, Germany. .,Department of Urology, Section for translational Prostate Cancer Research, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - Stefan Steurer
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - Till Krech
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
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35
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Kumar A, Zhang KYJ. Advances in the development of SUMO specific protease (SENP) inhibitors. Comput Struct Biotechnol J 2015; 13:204-11. [PMID: 25893082 PMCID: PMC4397505 DOI: 10.1016/j.csbj.2015.03.001] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2015] [Revised: 03/06/2015] [Accepted: 03/16/2015] [Indexed: 12/12/2022] Open
Abstract
Sumoylation is a reversible post-translational modification that involves the covalent attachment of small ubiquitin-like modifier (SUMO) proteins to their substrate proteins. Prior to their conjugation, SUMO proteins need to be proteolytically processed from its precursor form to mature or active form. SUMO specific proteases (SENPs) are cysteine proteases that cleave the pro or inactive form of SUMO at C-terminus using its hydrolase activity to expose two glycine residues. SENPs also catalyze the de-conjugation of SUMO proteins using their isopeptidase activity, which is crucial for recycling of SUMO from substrate proteins. SENPs are important for maintaining the balance between sumoylated and unsumoylated proteins required for normal cellular physiology. Several studies reported the overexpression of SENPs in disease conditions and highlighted their role in the development of various diseases, especially cancer. In this review, we will address the current biological understanding of various SENP isoforms and their role in the pathogenesis of different cancers and other diseases. We will then discuss the advances in the development of protein-based, peptidyl and small molecule inhibitors of various SENP isoforms. Finally, we will summarize successful examples of computational screening that allowed the identification of SENP inhibitors with therapeutic potential.
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Affiliation(s)
- Ashutosh Kumar
- Structural Bioinformatics Team, Division of Structural and Synthetic Biology, Center for Life Science Technologies, RIKEN, 1-7-22 Suehiro, Yokohama, Kanagawa 230-0045, Japan
| | - Kam Y J Zhang
- Structural Bioinformatics Team, Division of Structural and Synthetic Biology, Center for Life Science Technologies, RIKEN, 1-7-22 Suehiro, Yokohama, Kanagawa 230-0045, Japan
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36
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Roles of ubiquitination and SUMOylation on prostate cancer: mechanisms and clinical implications. Int J Mol Sci 2015; 16:4560-80. [PMID: 25734985 PMCID: PMC4394435 DOI: 10.3390/ijms16034560] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Revised: 02/09/2015] [Accepted: 02/12/2015] [Indexed: 12/30/2022] Open
Abstract
The initiation and progression of human prostate cancer are highly associated with aberrant dysregulations of tumor suppressors and proto-oncogenes. Despite that deletions and mutations of tumor suppressors and aberrant elevations of oncogenes at the genetic level are reported to cause cancers, emerging evidence has revealed that cancer progression is largely regulated by posttranslational modifications (PTMs) and epigenetic alterations. PTMs play critical roles in gene regulation, cellular functions, tissue development, diseases, malignant progression and drug resistance. Recent discoveries demonstrate that ubiquitination and SUMOylation are complicated but highly-regulated PTMs, and make essential contributions to diseases and cancers by regulation of key factors and signaling pathways. Ubiquitination and SUMOylation pathways can be differentially modulated under various stimuli or stresses in order to produce the sustained oncogenic potentials. In this review, we discuss some new insights about molecular mechanisms on ubiquitination and SUMOylation, their associations with diseases, oncogenic impact on prostate cancer (PCa) and clinical implications for PCa treatment.
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37
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Chua JP, Reddy SL, Yu Z, Giorgetti E, Montie HL, Mukherjee S, Higgins J, McEachin RC, Robins DM, Merry DE, Iñiguez-Lluhí JA, Lieberman AP. Disrupting SUMOylation enhances transcriptional function and ameliorates polyglutamine androgen receptor-mediated disease. J Clin Invest 2015; 125:831-45. [PMID: 25607844 DOI: 10.1172/jci73214] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2013] [Accepted: 11/25/2014] [Indexed: 12/20/2022] Open
Abstract
Expansion of the polyglutamine (polyQ) tract within the androgen receptor (AR) causes neuromuscular degeneration in individuals with spinobulbar muscular atrophy (SBMA). PolyQ AR has diminished transcriptional function and exhibits ligand-dependent proteotoxicity, features that have both been implicated in SBMA; however, the extent to which altered AR transcriptional function contributes to pathogenesis remains controversial. Here, we sought to dissociate effects of diminished AR function from polyQ-mediated proteotoxicity by enhancing the transcriptional activity of polyQ AR. To accomplish this, we bypassed the inhibitory effect of AR SUMOylation (where SUMO indicates small ubiquitin-like modifier) by mutating conserved lysines in the polyQ AR that are sites of SUMOylation. We determined that replacement of these residues by arginine enhances polyQ AR activity as a hormone-dependent transcriptional regulator. In a murine model, disruption of polyQ AR SUMOylation rescued exercise endurance and type I muscle fiber atrophy; it also prolonged survival. These changes occurred without overt alterations in polyQ AR expression or aggregation, revealing the favorable trophic support exerted by the ligand-activated receptor. Our findings demonstrate beneficial effects of enhancing the transcriptional function of the ligand-activated polyQ AR and indicate that the SUMOylation pathway may be a potential target for therapeutic intervention in SBMA.
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38
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Gonzales GF, Chaupis D. Higher androgen bioactivity is associated with excessive erythrocytosis and chronic mountain sickness in Andean Highlanders: a review. Andrologia 2014; 47:729-43. [PMID: 25277225 DOI: 10.1111/and.12359] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/12/2014] [Indexed: 01/12/2023] Open
Abstract
Populations living at high altitudes (HA), particularly in the Peruvian Central Andes, are characterised by presenting subjects with erythrocytosis and others with excessive erythrocytosis (EE)(Hb>21 g dl(-1) ). EE is associated with chronic mountain sickness (CMS), or lack of adaptation to HA. Testosterone is an erythropoietic hormone and it may play a role on EE at HA. The objective of the present review was to summarise findings on role of serum T levels on adaptation at HA and genes acting on this process. Men at HA without EE have higher androstenedione levels and low ratio androstenedione/testosterone than men with EE, suggesting low activity of 17beta-hydroxysteroid dehydrogenase (17beta-HSD), and this could be a mechanism of adaptation to HA. Higher conversion of dehydroepiandrosterone to testosterone in men with EE suggests nigher 17beta-HSD activity. Men with CMS at Peruvian Central Andes have two genes SENP1, and ANP32D with higher transcriptional response to hypoxia relative to those without. SUMO-specific protease 1 (SENP1) is an erythropoiesis regulator, which is essential for the stability and activity of hypoxia-inducible factor 1 (HIF-1α) under hypoxia. SENP1 reverses the hormone-augmented SUMOylation of androgen receptor (AR) increasing the transcription activity of AR.In conclusion, increased androgen activity is related with CMS.
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Affiliation(s)
- G F Gonzales
- Laboratory of Endocrinology and Reproduction, High Altitude Research Institute and Department of Biological and Physiological Sciences, Faculty of Sciences and Philosophy, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - D Chaupis
- Laboratory of Endocrinology and Reproduction, High Altitude Research Institute and Department of Biological and Physiological Sciences, Faculty of Sciences and Philosophy, Universidad Peruana Cayetano Heredia, Lima, Peru
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Chen CH, Namanja AT, Chen Y. Conformational flexibility and changes underlying activation of the SUMO-specific protease SENP1 by remote substrate binding. Nat Commun 2014; 5:4968. [PMID: 25263960 PMCID: PMC4285349 DOI: 10.1038/ncomms5968] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Accepted: 08/12/2014] [Indexed: 12/04/2022] Open
Affiliation(s)
- Chih-Hong Chen
- Department of Molecular Medicine, Beckman Research Institute of the City of Hope, 1500 East Duarte Road, Duarte, California 91010, USA
| | - Andrew T Namanja
- Department of Molecular Medicine, Beckman Research Institute of the City of Hope, 1500 East Duarte Road, Duarte, California 91010, USA
| | - Yuan Chen
- Department of Molecular Medicine, Beckman Research Institute of the City of Hope, 1500 East Duarte Road, Duarte, California 91010, USA
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40
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SUMO-specific protease 1 regulates pancreatic cancer cell proliferation and invasion by targeting MMP-9. Tumour Biol 2014; 35:12729-35. [PMID: 25217324 DOI: 10.1007/s13277-014-2598-1] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Accepted: 09/03/2014] [Indexed: 01/23/2023] Open
Abstract
SUMOylation is a dynamic process which can be reversed by a family of sentrin/SUMO-specific protease (SENPs). Recently, SENP1, a member of SENPs family was shown to have a pro-oncogenic role in many types of cancer. Here, we showed that SENP1 was upregulated in pancreatic ductal adenocarcinoma (PDAC) tissues compared with adjacent normal tissues. Moreover, clinical data showed that SENP1 was positively associated with lymph node metastasis and TNM stage. Furthermore, knockdown of SENP1 by SENP1-siRNA inhibited pancreatic cancer cell proliferation, migration, and invasion, suggesting that SENP1 played an important role in PDAC progression and metastasis. Mechanistically, silencing of SENP1 results in downregulation of MMP-9, which is pivotal for PDAC cell growth and migration. Taken together, these results suggest that SENP1 may serve as a potential novel diagnostic and therapeutic target of PDAC.
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SUMO-specific protease 1 modulates cadmium-augmented transcriptional activity of androgen receptor (AR) by reversing AR SUMOylation. Toxicol Lett 2014; 229:405-13. [DOI: 10.1016/j.toxlet.2014.07.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Revised: 07/01/2014] [Accepted: 07/06/2014] [Indexed: 12/13/2022]
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Sutinen P, Rahkama V, Rytinki M, Palvimo JJ. Nuclear mobility and activity of FOXA1 with androgen receptor are regulated by SUMOylation. Mol Endocrinol 2014; 28:1719-28. [PMID: 25127374 DOI: 10.1210/me.2014-1035] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Forkhead box (FOX) protein A1 has been dubbed a pioneer transcription factor because it binds target sites in DNA, thereby displacing nucleosomes to loosen chromatin and facilitating steroid receptor DNA binding nearby. FOXA1 is an important regulator of prostate development, collaborating with androgen receptor (AR). Post-translational modifications regulating FOXA1 are thus far poorly understood. SUMOylation, post-translational modification of proteins by small ubiquitin-like modifier (SUMO) proteins, has emerged as an important regulatory mechanism in transcriptional regulation. In this work, we show by SUMOylation assays in COS-1 cells that the FOXA1 is modified at least in two of its three lysines embedded in SUMOylation consensus, K6 and K389, in proximity to its transactivation domains and K267 proximal to its DNA-binding domain. We also provide evidence for SUMO-2/3 modification of endogenous FOXA1 in LNCaP prostate cancer cells. Based on fluorescence recovery after photobleaching assays with mCherry-fused FOXA1 and EGFP-fused AR in HEK293 cells, the presence of FOXA1 retards the nuclear mobility of agonist-bound AR. Interestingly, mutation of the FOXA1 SUMOylation sites slows down the mobility of the pioneer factor, further retarding the nuclear mobility of the AR. Chromatin immunoprecipitation and gene expression assays suggest that the mutation enhances FOXA1's chromatin occupancy as well as its activity on AR-regulated prostate-specific antigen (PSA) locus in LNCaP cells. Moreover, the mutation altered the ability of FOXA1 to influence proliferation of LNCaP cells. Taken together, these results strongly suggest that the SUMOylation can regulate the transcriptional activity of FOXA1 with the AR.
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Affiliation(s)
- Päivi Sutinen
- Institute of Biomedicine (P.S.,V.R., M.R., J.J.P.), University of Eastern Finland, 70210 Kuopio; and Department of Pathology (J.J.P.), Kuopio University of Hospital, 70029 Kuopio, Finland
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43
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Sutinen P, Malinen M, Heikkinen S, Palvimo JJ. SUMOylation modulates the transcriptional activity of androgen receptor in a target gene and pathway selective manner. Nucleic Acids Res 2014; 42:8310-9. [PMID: 24981513 PMCID: PMC4117771 DOI: 10.1093/nar/gku543] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Androgen receptor (AR) plays an important regulatory role in prostate cancer. AR's transcriptional activity is regulated by androgenic ligands, but also by post-translational modifications, such as SUMOylation. To study the role of AR SUMOylation in genuine chromatin environment, we compared androgen-regulated gene expression and AR chromatin occupancy in PC-3 prostate cancer cell lines stably expressing wild-type (wt) or doubly SUMOylation site-mutated AR (AR-K386R,K520R). Our genome-wide gene expression analyses reveal that the SUMOylation modulates the AR function in a target gene and pathway selective manner. The transcripts that are differentially regulated by androgen and SUMOylation are linked to cellular movement, cell death, cellular proliferation, cellular development and cell cycle. Fittingly, SUMOylation mutant AR cells proliferate faster and are more sensitive to apoptosis. Moreover, ChIP-seq analyses show that the SUMOylation can modulate the chromatin occupancy of AR on many loci in a fashion that parallels their differential androgen-regulated expression. De novo motif analyses reveal that FOXA1, C/EBP and AP-1 motifs are differentially enriched at the wtAR- and the AR-K386R,K520R-preferred genomic binding positions. Taken together, our data indicate that SUMOylation does not simply repress the AR activity, but it regulates AR's interaction with the chromatin and the receptor's target gene selection.
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Affiliation(s)
- Päivi Sutinen
- Institute of Biomedicine, University of Eastern Finland, Kuopio, PO Box 1627, FI-70211 Kuopio, Finland
| | - Marjo Malinen
- Institute of Biomedicine, University of Eastern Finland, Kuopio, PO Box 1627, FI-70211 Kuopio, Finland
| | - Sami Heikkinen
- Institute of Biomedicine, University of Eastern Finland, Kuopio, PO Box 1627, FI-70211 Kuopio, Finland
| | - Jorma J Palvimo
- Institute of Biomedicine, University of Eastern Finland, Kuopio, PO Box 1627, FI-70211 Kuopio, Finland Department of Pathology, Kuopio University Hospital, Kuopio, Finland
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Foran E, Rosenblum L, Bogush A, Pasinelli P, Trotti D. Sumoylation of the astroglial glutamate transporter EAAT2 governs its intracellular compartmentalization. Glia 2014; 62:1241-53. [PMID: 24753081 DOI: 10.1002/glia.22677] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2014] [Revised: 03/24/2014] [Accepted: 04/02/2014] [Indexed: 12/13/2022]
Abstract
EAAT2 is a predominantly astroglial glutamate transporter responsible for the majority of synaptic glutamate clearance in the mammalian central nervous system (CNS). Its dysfunction has been linked with many neurological disorders, including amyotrophic lateral sclerosis (ALS). Decreases in EAAT2 expression and function have been implicated in causing motor neuron excitotoxic death in ALS. Nevertheless, increasing EAAT2 expression does not significantly improve ALS phenotype in mouse models or in clinical trials. In the SOD1-G93A mouse model of inherited ALS, the cytosolic carboxy-terminal domain is cleaved from EAAT2, conjugated to SUMO1, and accumulated in astrocytes where it triggers astrocyte-mediated neurotoxic effects as disease progresses. However, it is not known whether this fragment is sumoylated after cleavage or if full-length EAAT2 is already sumoylated prior to cleavage as part of physiological regulation. In this study, we show that a fraction of full-length EAAT2 is constitutively sumoylated in primary cultures of astrocytes in vitro and in the CNS in vivo. Furthermore, the extent of sumoylation of EAAT2 does not change during the course of ALS in the SOD1-G93A mouse and is not affected by the expression of ALS-causative mutant SOD1 proteins in astrocytes in vitro, indicating that EAAT2 sumoylation is not driven by pathogenic mechanisms. Most interestingly, sumoylated EAAT2 localizes to intracellular compartments, whereas non-sumoylated EAAT2 resides on the plasma membrane. In agreement, promoting desumoylation in primary astrocytes causes increased EAAT2-mediated glutamate uptake. These findings could have implications for optimizing therapeutic approaches aimed at increasing EAAT2 activity in the dysfunctional or diseased CNS.
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Affiliation(s)
- E Foran
- Frances and Joseph Weinberg Unit for ALS Research, Farber Institute for Neuroscience, Department of Neuroscience, Thomas Jefferson University, Philadelphia, Pennsylvania
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45
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Abdel-Hafiz HA, Horwitz KB. Post-translational modifications of the progesterone receptors. J Steroid Biochem Mol Biol 2014; 140:80-9. [PMID: 24333793 PMCID: PMC3923415 DOI: 10.1016/j.jsbmb.2013.12.008] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Revised: 11/30/2013] [Accepted: 12/02/2013] [Indexed: 01/21/2023]
Abstract
Progesterone plays a key role in the development, differentiation and maintenance of female reproductive tissues and has multiple non-reproductive neural functions. Depending on the cell and tissue, the hormonal environment, growth conditions and the developmental stage, progesterone can either stimulate cell growth or inhibit it while promoting differentiation. Progesterone receptors (PRs) belong to the steroid hormone receptor superfamily of ligand-dependent transcription factors. PR proteins are subject to extensive post-translational modifications that include phosphorylation, acetylation, ubiquitination and SUMOylation. The interplay among these modifications is complex with alteration of the receptors by one factor influencing the impact of another. Control over these modifications is species-, tissue- and cell-specific. They in turn regulate multiple functions including PR stability, their subcellular localization, protein-protein interactions and transcriptional activity. These complexities may explain how tissue- and gene-specific differences in regulation are achieved in the same organism, by the same receptor protein and hormone. Here we review current knowledge of PR post-translational modifications and discuss how these may influence receptor function focusing on human breast cancer cells. There is much left to be learned. However, our understanding of this may help to identify therapeutic agents that target PR activity in tissue-specific, even gene-specific ways.
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Affiliation(s)
- Hany A Abdel-Hafiz
- Division of Endocrinology, Department of Medicine, Anschutz Medical Campus, University of Colorado Denver, Aurora, CO 80045, USA.
| | - Kathryn B Horwitz
- Division of Endocrinology, Department of Medicine, Anschutz Medical Campus, University of Colorado Denver, Aurora, CO 80045, USA; Department of Pathology, Anschutz Medical Campus, University of Colorado Denver, Aurora, CO 80045, USA
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46
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Chua JP, Lieberman AP. Pathogenic mechanisms and therapeutic strategies in spinobulbar muscular atrophy. CNS & NEUROLOGICAL DISORDERS DRUG TARGETS 2013; 12:1146-1156. [PMID: 24040817 PMCID: PMC4003563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 05/10/2012] [Revised: 07/10/2012] [Accepted: 07/10/2012] [Indexed: 06/02/2023]
Abstract
We review the genetic and clinical features of spinobulbar muscular atrophy (SBMA), a progressive neuromuscular disorder caused by a CAG/glutamine tract expansion in the androgen receptor. SBMA was the first polyglutamine disease to be discovered, and we compare and contrast it with related degenerative disorders of the nervous system caused by expanded glutamine tracts. We review the cellular and animals models that have been most widely used to study this disorder, and highlight insights into disease pathogenesis derived from this work. These model systems have revealed critical aspects of the disease, including its hormone dependence, a feature that underlies disease occurrence only in men with the mutant allele. We discuss how this and other findings have been translated to clinical trials for SBMA patients, and examine emerging therapeutic targets that have been identified by recent work.
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Affiliation(s)
| | - Andrew P Lieberman
- Department of Pathology, University of Michigan Medical School, 3510 MSRB1, 1150 W. Medical Center Dr., Ann Arbor, Michigan 48109-0605, USA.
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Paakinaho V, Kaikkonen S, Makkonen H, Benes V, Palvimo JJ. SUMOylation regulates the chromatin occupancy and anti-proliferative gene programs of glucocorticoid receptor. Nucleic Acids Res 2013; 42:1575-92. [PMID: 24194604 PMCID: PMC3919585 DOI: 10.1093/nar/gkt1033] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
In addition to the glucocorticoids, the glucocorticoid receptor (GR) is regulated by post-translational modifications, including SUMOylation. We have analyzed how SUMOylation influences the activity of endogenous GR target genes and the receptor chromatin binding by using isogenic HEK293 cells expressing wild-type GR (wtGR) or SUMOylation-defective GR (GR3KR). Gene expression profiling revealed that both dexamethasone up- and downregulated genes are affected by the GR SUMOylation and that the affected genes are significantly associated with pathways of cellular proliferation and survival. The GR3KR-expressing cells proliferated more rapidly, and their anti-proliferative response to dexamethasone was less pronounced than in the wtGR-expressing cells. ChIP-seq analyses indicated that the SUMOylation modulates the chromatin occupancy of GR on several loci associated with cellular growth in a fashion that parallels with their differential dexamethasone-regulated expression between the two cell lines. Moreover, chromatin SUMO-2/3 marks, which were associated with active GR-binding sites, showed markedly higher overlap with the wtGR cistrome than with the GR3KR cistrome. In sum, our results indicate that the SUMOylation does not simply repress the GR activity, but regulates the activity of the receptor in a target locus selective fashion, playing an important role in controlling the GR activity on genes influencing cell growth.
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Affiliation(s)
- Ville Paakinaho
- Institute of Biomedicine, University of Eastern Finland, Kuopio, PO Box 1627, FI-70211 Kuopio, Finland, European Molecular Biology Laboratory (EMBL), Core Facilities and Services, Meyerhofstrasse 1, 69117 Heidelberg, Germany and Department of Pathology, Kuopio University Hospital, Kuopio, Finland
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48
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Sumoylation of critical proteins in amyotrophic lateral sclerosis: emerging pathways of pathogenesis. Neuromolecular Med 2013; 15:760-70. [PMID: 24062161 DOI: 10.1007/s12017-013-8262-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Accepted: 08/22/2013] [Indexed: 12/11/2022]
Abstract
Emerging lines of evidence suggest a relationship between amyotrophic lateral sclerosis (ALS) and protein sumoylation. Multiple studies have demonstrated that several of the proteins involved in the pathogenesis of ALS, including superoxide dismutase 1, fused in liposarcoma, and TAR DNA-binding protein 43 (TDP-43), are substrates for sumoylation. Additionally, recent studies in cellular and animal models of ALS revealed that sumoylation of these proteins impact their localization, longevity, and how they functionally perform in disease, providing novel areas for mechanistic investigations and therapeutics. In this article, we summarize the current literature examining the impact of sumoylation of critical proteins involved in ALS and discuss the potential impact for the pathogenesis of the disease. In addition, we report and discuss the implications of new evidence demonstrating that sumoylation of a fragment derived from the proteolytic cleavage of the astroglial glutamate transporter, EAAT2, plays a direct role in downregulating the expression levels of full-length EAAT2 by binding to a regulatory region of its promoter.
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Abstract
Prostate cancer (PCa) is the most commonly diagnosed noncutaneous malignancy and second leading cause of cancer-related deaths in US males. Clinically, locally confined disease is treated surgically and/or with radiation therapy. Invasive disease, however, must be treated with pharmacological inhibitors of androgen receptor (AR) activity, since disease progression is fundamentally reliant on AR activation. However, despite initially effective treatment options, recurrent castration-resistant PCa (CRPC) often occurs due to aberrant reactivation of AR. Additionally, it is appreciated that many other signaling molecules, such as transcription factors, oncogenes, and tumor suppressors, are often perturbed and significantly contribute to PCa initiation and progression to incurable disease. Understanding the interplay between AR signaling and other signaling networks altered in PCa will advance therapeutic approaches. Overall, comprehension of the molecular composition promoting neoplastic growth and formation of CRPC is paramount for developing durable treatment options.
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Affiliation(s)
- Randy Schrecengost
- Department of Cancer Biology, Thomas Jefferson University, Philadelphia, PA 19107, USA
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Madu IG, Namanja AT, Su Y, Wong S, Li YJ, Chen Y. Identification and characterization of a new chemotype of noncovalent SENP inhibitors. ACS Chem Biol 2013; 8:1435-41. [PMID: 23614497 DOI: 10.1021/cb400177q] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Enzymes called SENPs catalyze both the maturation of small ubiquitin-like modifier (SUMO) precursors and removal of SUMO modifications, which regulate essential cellular functions such as cell cycle progression, DNA damage response, and intracellular trafficking. Some members, such as SENP1, are potential targets for developing cancer therapeutics. We searched for small molecule inhibitors of SENPs using in silico screening in conjunction with biochemical assays and identified a new chemotype of small molecule inhibitors that noncovalently inhibit SENPs. The inhibitors confer the noncompetitive inhibitory mechanism, as shown by nuclear magnetic resonance (NMR) and quantitative enzyme kinetic analysis. The NMR data also provided evidence for substrate-assisted inhibitor binding, which indicates the need for caution in using artificial substrates for compound screening, as the inhibitory effects could be significantly different from using the physiological substrates. This finding also suggests the possibility of designing inhibitors for this class of enzymes that are tuned for substrate-specificity.
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Affiliation(s)
- Ikenna G. Madu
- Department of Molecular Medicine, Beckman Research Institute of the City of Hope, 1500 East Duarte
Road, Duarte, California 91010, United States
| | - Andrew T. Namanja
- Department of Molecular Medicine, Beckman Research Institute of the City of Hope, 1500 East Duarte
Road, Duarte, California 91010, United States
| | - Yang Su
- Department of Molecular Medicine, Beckman Research Institute of the City of Hope, 1500 East Duarte
Road, Duarte, California 91010, United States
| | - Steven Wong
- Department of Molecular Medicine, Beckman Research Institute of the City of Hope, 1500 East Duarte
Road, Duarte, California 91010, United States
| | - Yi-Jia Li
- Department of Molecular Medicine, Beckman Research Institute of the City of Hope, 1500 East Duarte
Road, Duarte, California 91010, United States
| | - Yuan Chen
- Department of Molecular Medicine, Beckman Research Institute of the City of Hope, 1500 East Duarte
Road, Duarte, California 91010, United States
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