1
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Li Z, Gu J, Huang X, Lu Z, Feng Y, Xu X, Yang J. Transcriptome-based network analysis reveals hub immune genes and pathways of hepatopancreas against LPS in Amphioctopus fangsiao. FISH & SHELLFISH IMMUNOLOGY 2024; 151:109696. [PMID: 38871144 DOI: 10.1016/j.fsi.2024.109696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 05/13/2024] [Accepted: 06/11/2024] [Indexed: 06/15/2024]
Abstract
The hepatopancreas is the biggest digestive organ in Amphioctopus fangsiao (A. fangsiao), but also undertakes critical functions like detoxification and immune defense. Generally, pathogenic bacteria or endotoxin from the gut microbiota would be arrested and detoxified in the hepatopancreas, which could be accompanied by the inevitable immune responses. In recent years, studies related to cephalopods immune have been increasing, but the molecular mechanisms associated with the hepatopancreatic immunity are still unclear. In this study, lipopolysaccharide (LPS), a major component of the cell wall of Gram-negative bacteria, was used for imitating bacteria infection to stimulate the hepatopancreas of A. fangsiao. To investigate the immune process happened in A. fangsiao hepatopancreas, we performed transcriptome analysis of hepatopancreas tissue after LPS injection, and identified 2615 and 1943 differentially expressed genes (DEGs) at 6 and 24 h post-injection, respectively. GO and KEGG enrichment analysis showed that these DEGs were mainly involved in immune-related biological processes and signaling pathways, including ECM-receptor interaction signaling pathway, Phagosome signaling pathway, Lysosome signaling pathway, and JAK-STAT signaling pathways. The function relationships between these DEGs were further analyzed through protein-protein interaction (PPI) networks. It was found that Mtor, Mapk14 and Atm were the three top interacting DEGs under LPS stimulation. Finally, 15 hub genes involving multiple KEGG signaling pathways and PPI relationships were selected for qRT-PCR validation. In this study, for the first time we explored the molecular mechanisms associated with hepatopancreatic immunity in A. fangsiao using a PPI networks approach, and provided new insights for understanding hepatopancreatic immunity in A. fangsiao.
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Affiliation(s)
- Zan Li
- School of Agriculture, Ludong University, Yantai, 264025, China
| | - Jingjing Gu
- Binzhou Testing Center, Binzhou 256600, China
| | - Xiaolan Huang
- School of Agriculture, Ludong University, Yantai, 264025, China
| | - Zhengcai Lu
- School of Agriculture, Ludong University, Yantai, 264025, China
| | - Yanwei Feng
- School of Agriculture, Ludong University, Yantai, 264025, China
| | - Xiaohui Xu
- School of Agriculture, Ludong University, Yantai, 264025, China.
| | - Jianmin Yang
- School of Agriculture, Ludong University, Yantai, 264025, China
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2
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Kulkarni H, Dagar N, Gaikwad AB. Targeting polo-like kinase 1 to treat kidney diseases. Cell Biochem Funct 2024; 42:e4099. [PMID: 39016459 DOI: 10.1002/cbf.4099] [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: 05/27/2024] [Revised: 06/20/2024] [Accepted: 07/10/2024] [Indexed: 07/18/2024]
Abstract
Globally, ∼850 million individuals suffer from some form of kidney disease. This staggering figure underscores the importance of continued research and innovation in the field of nephrology to develop effective treatments and improve overall global kidney health. In current research, the polo-like kinase (Plk) family has emerged as a group of highly conserved enzyme kinases vital for proper cell cycle regulation. Plks are defined by their N-terminal kinase domain and C-terminal polo-box domain, which regulate their catalytic activity, subcellular localization, and substrate recognition. Among the Plk family members, Plk1 has garnered significant attention due to its pivotal role in regulating multiple mitotic processes, particularly in the kidneys. It is a crucial serine-threonine (Ser-Thr) kinase involved in cell division and genomic stability. In this review, we delve into the types and functions of Plks, focusing on Plk1's significance in processes such as cell proliferation, spindle assembly, and DNA damage repair. The review also underscores Plk1's vital contributions to maintaining kidney homeostasis, elucidating its involvement in nuclear envelope breakdown, anaphase-promoting complex/cyclosome activation, and the regulation of mRNA translation machinery. Furthermore, the review discusses how Plk1 contributes to the development and progression of kidney diseases, emphasizing its overexpression in conditions such as acute kidney injury, chronic kidney disease, and so forth. It also highlights the importance of exploring Plk1 modulators as targeted therapies for kidney diseases in future. This review will help in understanding the role of Plk1 in kidney disease development, paving the way for the discovery and development of novel therapeutic approaches to manage kidney diseases effectively.
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Affiliation(s)
- Hrushikesh Kulkarni
- Department of Pharmacy, Birla Institute of Technology and Science, Pilani, Rajasthan, India
| | - Neha Dagar
- Department of Pharmacy, Birla Institute of Technology and Science, Pilani, Rajasthan, India
| | - Anil Bhanudas Gaikwad
- Department of Pharmacy, Birla Institute of Technology and Science, Pilani, Rajasthan, India
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3
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Wang H, Liang Y, Zhao L, Deng J, Li Y, Zhao H, Zhang X, Zou F. miR-653-3p promotes genomic instability of colorectal cancer cells via targeting SIRT1/TWIST1 signaling pathway. Biochim Biophys Acta Mol Basis Dis 2023; 1869:166821. [PMID: 37516255 DOI: 10.1016/j.bbadis.2023.166821] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 07/19/2023] [Accepted: 07/23/2023] [Indexed: 07/31/2023]
Abstract
Development of colorectal cancer (CRC) accompanied with genomic instability. Genomic instability was promoted by microRNAs (miRNAs) inhibiting key genes in DNA damage repair and spindle assembly processes. Whether miR-653-3p affects genomic instability is unknown. The aim of this study is to explore the effect of miR-653-3p on genomic instability in CRC cells. Based on RT-qPCR analysis, miR-653-3p was highly expressed in CRC cells. Through single-cell electrophoresis assay and chromosome karyotype analysis, we determined ectopic expression of miR-653-3p induced increased DNA damage but inhibited apoptosis by promoting chromosomal instability. Mechanistically, luciferase assay identified the direct interaction of miR-653-3p with the 3' UTR of SIRT1, and western blot analysis indicated miR-653-3p inhibited SIRT1 and then promoted STAT3 phosphorylation and TWIST1 expression. The results of karyotype analysis showed that the upregulation of SIRT1 and the downregulation of TWIST1 caused by the downregulation of miR-653-3p suppressed chromosomal instability. Additionally, our evidence showed that miR-653-3p promoted CRC cell proliferation, migration, and 5-FU resistance, and miR-653-3p induced the development of CRC in the xenograft mice model. Altogether, our evidence suggests that miR-653-3p regulates SIRT1/TWIST1 signaling pathway and plays an important role in promoting genomic instability, proliferation, migration, and chemoresistance of CRC cells, which may serve as a promising therapeutic target for CRC therapy.
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Affiliation(s)
- Huani Wang
- College of Life Sciences, Sichuan University, Chengdu 610065, China
| | - Yutong Liang
- College of Life Sciences, Sichuan University, Chengdu 610065, China
| | - Lili Zhao
- College of Life Sciences, Sichuan University, Chengdu 610065, China
| | - Jiaqiang Deng
- College of Life Sciences, Sichuan University, Chengdu 610065, China
| | - Yan Li
- College of Life Sciences, Sichuan University, Chengdu 610065, China
| | - Hong Zhao
- College of Life Sciences, Sichuan University, Chengdu 610065, China
| | - Xiao Zhang
- College of Life Sciences, Sichuan University, Chengdu 610065, China
| | - Fangdong Zou
- College of Life Sciences, Sichuan University, Chengdu 610065, China.
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4
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Chen H, Xing R, Yin X, Huang H. Activation of SIRT1 by hyperbaric oxygenation promotes recovery of motor dysfunction in spinal cord injury rats. Int J Neurosci 2023:1-11. [PMID: 37982284 DOI: 10.1080/00207454.2023.2285707] [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: 10/03/2023] [Accepted: 11/15/2023] [Indexed: 11/21/2023]
Abstract
BACKGROUND Hyperbaric oxygenation (HBO) therapy can improve locomotor dysfunction following spinal cord injury (SCI). Emerging evidence has demonstrated that sirtuin1 (SIRT1) exerts protective effects on neurons. However, whether HBO alleviates locomotor dysfunction by regulating SIRT1 is unclear. METHODS The traumatic SCI animal model was performed on the adult Sprague-Dawley rats. The Basso, Beattie Bresnahan (BBB) locomotor rating scale was used to evaluate the open-field locomotor function. Western blot, real-time quantitative reverse transcription polymerase chain reaction, SIRT1 activity assay, and enzyme-linked immunosorbent assays were performed to explore the molecular mechanisms. RESULTS We found that series HBO therapy significantly improved locomotor dysfunction and ameliorated the decreased mRNA, protein, and activity of spinal cord SIRT1 induced by traumatic SCI injury in rats. In addition, intraperitoneal injection of SIRT1 inhibitor EX-527 abolished the beneficial effects of series HBO treatment on locomotor deficits. Importantly, series HBO treatment following the traumatic SCI injury inhibited the inflammatory cascade and apoptosis-related protein, which was retained by EX-527 and enhanced by SRT1720. Furthermore, EX-527 blocked the enhanced induction of autophagy series with the HBO application. CONCLUSION These findings demonstrated a new mechanism for series HBO therapy involving activation of SIRT1 and subsequent modulation of the inflammatory cascade, apoptosis, and autophagy, which contributed to the recovery of motor dysfunction.
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Affiliation(s)
- Huiqiang Chen
- Department of Orthopedics, General Hospital of Southern Theater Command, Guangzhou, China
| | - Ranran Xing
- Department of Neurological Rehabilitation, Division II, Neurology Specialty Hospital, General Hospital of Southern Theater Command, Guangzhou, China
| | - Xinwei Yin
- Department of Neurological Rehabilitation, Division II, Neurology Specialty Hospital, General Hospital of Southern Theater Command, Guangzhou, China
| | - Huai Huang
- Department of Neurological Rehabilitation, Division II, Neurology Specialty Hospital, General Hospital of Southern Theater Command, Guangzhou, China
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5
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Białopiotrowicz-Data E, Noyszewska-Kania M, Jabłońska E, Sewastianik T, Komar D, Dębek S, Garbicz F, Wojtas M, Szydłowski M, Polak A, Górniak P, Juszczyński P. SIRT1 and HSP90α feed-forward circuit safeguards chromosome segregation integrity in diffuse large B cell lymphomas. Cell Death Dis 2023; 14:667. [PMID: 37816710 PMCID: PMC10564908 DOI: 10.1038/s41419-023-06186-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 09/18/2023] [Accepted: 09/28/2023] [Indexed: 10/12/2023]
Abstract
Diffuse large B-cell lymphoma (DLBCL) is the most common aggressive non-Hodgkin lymphoma in adults, exhibiting highly heterogenous clinical behavior and complex molecular background. In addition to the genetic complexity, different DLBCL subsets exhibit phenotypic features independent of the genetic background. For example, a subset of DLBCLs is distinguished by increased oxidative phosphorylation and unique transcriptional features, including overexpression of certain mitochondrial genes and a molecular chaperone, heat shock protein HSP90α (termed "OxPhos" DLBCLs). In this study, we identified a feed-forward pathogenetic circuit linking HSP90α and SIRT1 in OxPhos DLBCLs. The expression of the inducible HSP90α isoform remains under SIRT1-mediated regulation. SIRT1 knockdown or chemical inhibition reduced HSP90α expression in a mechanism involving HSF1 transcription factor, whereas HSP90 inhibition reduced SIRT1 protein stability, indicating that HSP90 chaperones SIRT1. SIRT1-HSP90α interaction in DLBCL cells was confirmed by co-immunoprecipitation and proximity ligation assay (PLA). The number of SIRT1-HSP90α complexes in PLA was significantly higher in OxPhos- dependent than -independent cells. Importantly, SIRT1-HSP90α interactions in OxPhos DLBCLs markedly increased in mitosis, suggesting a specific role of the complex during this cell cycle phase. RNAi-mediated and chemical inhibition of SIRT1 and/or HSP90 significantly increased the number of cells with chromosome segregation errors (multipolar spindle formation, anaphase bridges and lagging chromosomes). Finally, chemical SIRT1 inhibitors induced dose-dependent cytotoxicity in OxPhos-dependent DLBCL cell lines and synergized with the HSP90 inhibitor. Taken together, our findings define a new OxPhos-DLBCL-specific pathogenetic loop involving SIRT1 and HSP90α that regulates chromosome dynamics during mitosis and may be exploited therapeutically.
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Affiliation(s)
| | - Monika Noyszewska-Kania
- Department of Experimental Hematology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Ewa Jabłońska
- Department of Experimental Hematology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Tomasz Sewastianik
- Department of Experimental Hematology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Dorota Komar
- Department of Experimental Hematology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Sonia Dębek
- Department of Experimental Hematology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Filip Garbicz
- Department of Experimental Hematology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Magdalena Wojtas
- Department of Diagnostic Hematology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Maciej Szydłowski
- Department of Experimental Hematology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Anna Polak
- Department of Experimental Hematology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Patryk Górniak
- Department of Experimental Hematology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Przemysław Juszczyński
- Department of Experimental Hematology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland.
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6
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Branch MR, Hsu CL, Ohnishi K, Shen WC, Lee E, Meisenhelder J, Winborn B, Sopher BL, Taylor JP, Hunter T, La Spada AR. MAP4K3 inhibits Sirtuin-1 to repress the LKB1-AMPK pathway to promote amino acid-dependent activation of the mTORC1 complex. Life Sci Alliance 2023; 6:e202201525. [PMID: 37221017 PMCID: PMC10205607 DOI: 10.26508/lsa.202201525] [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: 05/13/2022] [Revised: 05/03/2023] [Accepted: 05/04/2023] [Indexed: 05/25/2023] Open
Abstract
mTORC1 is the key rheostat controlling the cellular metabolic state. Of the various inputs to mTORC1, the most potent effector of intracellular nutrient status is amino acid supply. Despite an established role for MAP4K3 in promoting mTORC1 activation in the presence of amino acids, the signaling pathway by which MAP4K3 controls mTORC1 activation remains unknown. Here, we examined the process of MAP4K3 regulation of mTORC1 and found that MAP4K3 represses the LKB1-AMPK pathway to achieve robust mTORC1 activation. When we sought the regulatory link between MAP4K3 and LKB1 inhibition, we discovered that MAP4K3 physically interacts with the master nutrient regulatory factor sirtuin-1 (SIRT1) and phosphorylates SIRT1 to repress LKB1 activation. Our results reveal the existence of a novel signaling pathway linking amino acid satiety with MAP4K3-dependent suppression of SIRT1 to inactivate the repressive LKB1-AMPK pathway and thereby potently activate the mTORC1 complex to dictate the metabolic disposition of the cell.
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Affiliation(s)
- Mary Rose Branch
- Departments of Pathology & Laboratory Medicine, Neurology, and Biological Chemistry, University of California, Irvine, CA, USA
- Department of Neurology, Duke University School of Medicine, Durham, NC, USA
| | - Cynthia L Hsu
- Department of Pediatrics, University of California, San Diego; La Jolla, CA, USA
| | - Kohta Ohnishi
- Department of Pediatrics, University of California, San Diego; La Jolla, CA, USA
| | - Wen-Chuan Shen
- Departments of Pathology & Laboratory Medicine, Neurology, and Biological Chemistry, University of California, Irvine, CA, USA
| | - Elian Lee
- Department of Pediatrics, University of California, San Diego; La Jolla, CA, USA
| | - Jill Meisenhelder
- Molecular and Cellular Biology Laboratory, Salk Institute, La Jolla, CA, USA
| | - Brett Winborn
- Department of Cell and Molecular Biology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Bryce L Sopher
- Department of Pathology, University of Washington Medical Center, Seattle, WA, USA
| | - J Paul Taylor
- Department of Cell and Molecular Biology, St. Jude Children's Research Hospital, Memphis, TN, USA
- Howard Hughes Medical Institute, Chevy Chase, MD, USA
| | - Tony Hunter
- Molecular and Cellular Biology Laboratory, Salk Institute, La Jolla, CA, USA
| | - Albert R La Spada
- Departments of Pathology & Laboratory Medicine, Neurology, and Biological Chemistry, University of California, Irvine, CA, USA
- Department of Neurology, Duke University School of Medicine, Durham, NC, USA
- Department of Pediatrics, University of California, San Diego; La Jolla, CA, USA
- UCI Institute for Neurotherapeutics, University of California, Irvine, CA, USA
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7
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Lee SH, Yang JH, Park UH, Choi H, Kim YS, Yoon BE, Han HJ, Kim HT, Um SJ, Kim EJ. SIRT1 ubiquitination is regulated by opposing activities of APC/C-Cdh1 and AROS during stress-induced premature senescence. Exp Mol Med 2023; 55:1232-1246. [PMID: 37258580 PMCID: PMC10318011 DOI: 10.1038/s12276-023-01012-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 02/28/2023] [Accepted: 03/16/2023] [Indexed: 06/02/2023] Open
Abstract
SIRT1, a member of the mammalian sirtuin family, is a nicotinamide adenosine dinucleotide (NAD)-dependent deacetylase with key roles in aging-related diseases and cellular senescence. However, the mechanism by which SIRT1 protein homeostasis is controlled under senescent conditions remains elusive. Here, we revealed that SIRT1 protein is significantly downregulated due to ubiquitin-mediated proteasomal degradation during stress-induced premature senescence (SIPS) and that SIRT1 physically associates with anaphase-promoting complex/cyclosome (APC/C), a multisubunit E3 ubiquitin ligase. Ubiquitin-dependent SIRT1 degradation is stimulated by the APC/C coactivator Cdh1 and not by the coactivator Cdc20. We found that Cdh1 depletion impaired the SIPS-promoted downregulation of SIRT1 expression and reduced cellular senescence, likely through SIRT1-driven p53 inactivation. In contrast, AROS, a SIRT1 activator, reversed the SIRT1 degradation induced by diverse stressors and antagonized Cdh1 function through competitive interactions with SIRT1. Furthermore, our data indicate opposite roles for Cdh1 and AROS in the epigenetic regulation of the senescence-associated secretory phenotype genes IL-6 and IL-8. Finally, we demonstrated that pinosylvin restores downregulated AROS (and SIRT1) expression levels in bleomycin-induced mouse pulmonary senescent tissue while repressing bleomycin-promoted Cdh1 expression. Overall, our study provides the first evidence of the reciprocal regulation of SIRT1 stability by APC/C-Cdh1 and AROS during stress-induced premature senescence, and our findings suggest pinosylvin as a potential senolytic agent for pulmonary fibrosis.
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Affiliation(s)
- Sang Hyup Lee
- Department of Molecular Biology, Dankook University, Cheonan, 31116, Korea
| | - Ji-Hye Yang
- Department of Molecular Biology, Dankook University, Cheonan, 31116, Korea
| | - Ui-Hyun Park
- Department of Integrative Bioscience and Biotechnology/Institute of Bioscience, Sejong University, Seoul, 143-747, Korea
| | - Hanbyeul Choi
- Department of Molecular Biology, Dankook University, Cheonan, 31116, Korea
| | - Yoo Sung Kim
- Department of Molecular Biology, Dankook University, Cheonan, 31116, Korea
| | - Bo-Eun Yoon
- Department of Molecular Biology, Dankook University, Cheonan, 31116, Korea
| | - Hye-Jeong Han
- Soonchunhyang Institute of Medi-bio Science (SIMS), Soonchunhyang University, 31151, Cheonan-si, Republic of Korea
- Department of Integrated Biomedical Science, Soonchunhyang University, 31151, Cheonan-si, Republic of Korea
| | - Hyun-Taek Kim
- Soonchunhyang Institute of Medi-bio Science (SIMS), Soonchunhyang University, 31151, Cheonan-si, Republic of Korea
- Department of Integrated Biomedical Science, Soonchunhyang University, 31151, Cheonan-si, Republic of Korea
| | - Soo-Jong Um
- Department of Integrative Bioscience and Biotechnology/Institute of Bioscience, Sejong University, Seoul, 143-747, Korea.
| | - Eun-Joo Kim
- Department of Molecular Biology, Dankook University, Cheonan, 31116, Korea.
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8
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Hao S, Wang Y, Zhao Y, Gao W, Cui W, Li Y, Cui J, Liu Y, Lin L, Xu X, Wang H. Dynamic switching of crotonylation to ubiquitination of H2A at lysine 119 attenuates transcription-replication conflicts caused by replication stress. Nucleic Acids Res 2022; 50:9873-9892. [PMID: 36062559 PMCID: PMC9508856 DOI: 10.1093/nar/gkac734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 07/20/2022] [Accepted: 08/18/2022] [Indexed: 11/21/2022] Open
Abstract
The reversible post-translational modification (PTM) of proteins plays an important role in many cellular processes. Lysine crotonylation (Kcr) is a newly identified PTM, but its functional significance remains unclear. Here, we found that Kcr is involved in the replication stress response. We show that crotonylation of histone H2A at lysine 119 (H2AK119) and ubiquitination of H2AK119 are reversibly regulated by replication stress. Decrotonylation of H2AK119 by SIRT1 is a prerequisite for subsequent ubiquitination of H2AK119 by BMI1. Accumulation of ubiquitinated H2AK119 at reversed replication forks leads to the release of RNA Polymerase II and transcription repression in the vicinity of stalled replication forks. These effects attenuate transcription–replication conflicts (TRCs) and TRC-associated R-loop formation and DNA double-strand breaks. These findings suggest that decrotonylation and ubiquitination of H2A at lysine 119 act together to resolve replication stress-induced TRCs and protect genome stability.
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Affiliation(s)
- Shuailin Hao
- Beijing Key Laboratory of DNA Damage Response and College of Life Sciences, Capital Normal University, Beijing 100048, China
| | - Ya Wang
- Beijing Key Laboratory of DNA Damage Response and College of Life Sciences, Capital Normal University, Beijing 100048, China
| | - Yuqin Zhao
- Beijing Key Laboratory of DNA Damage Response and College of Life Sciences, Capital Normal University, Beijing 100048, China
| | - Wen Gao
- Beijing Key Laboratory of DNA Damage Response and College of Life Sciences, Capital Normal University, Beijing 100048, China
| | - Wei Cui
- Beijing Key Laboratory of DNA Damage Response and College of Life Sciences, Capital Normal University, Beijing 100048, China
| | - Youhang Li
- Beijing Key Laboratory of DNA Damage Response and College of Life Sciences, Capital Normal University, Beijing 100048, China
| | - Jian Cui
- Beijing Key Laboratory of DNA Damage Response and College of Life Sciences, Capital Normal University, Beijing 100048, China
| | - Yu Liu
- Beijing Key Laboratory of DNA Damage Response and College of Life Sciences, Capital Normal University, Beijing 100048, China
| | - Lixiu Lin
- Beijing Key Laboratory of DNA Damage Response and College of Life Sciences, Capital Normal University, Beijing 100048, China
| | - Xingzhi Xu
- Guangdong Key Laboratory for Genome Stability and Disease Prevention and Carson International Cancer Center, Marshall Laboratory of Biomedical Engineering, China Shenzhen University School of Medicine, Shenzhen, Guangdong 518060, China
| | - Hailong Wang
- Beijing Key Laboratory of DNA Damage Response and College of Life Sciences, Capital Normal University, Beijing 100048, China
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9
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Zhang C, Ni C, Lu H. Polo-Like Kinase 2: From Principle to Practice. Front Oncol 2022; 12:956225. [PMID: 35898867 PMCID: PMC9309260 DOI: 10.3389/fonc.2022.956225] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 06/14/2022] [Indexed: 11/21/2022] Open
Abstract
Polo-like kinase (PLK) 2 is an evolutionarily conserved serine/threonine kinase that shares the n-terminal kinase catalytic domain and the C-terminal Polo Box Domain (PBD) with other members of the PLKs family. In the last two decades, mounting studies have focused on this and tried to clarify its role in many aspects. PLK2 is essential for mitotic centriole replication and meiotic chromatin pairing, synapsis, and crossing-over in the cell cycle; Loss of PLK2 function results in cell cycle disorders and developmental retardation. PLK2 is also involved in regulating cell differentiation and maintaining neural homeostasis. In the process of various stimuli-induced stress, including oxidative and endoplasmic reticulum, PLK2 may promote survival or apoptosis depending on the intensity of stimulation and the degree of cell damage. However, the role of PLK2 in immunity to viral infection has been studied far less than that of other family members. Because PLK2 is extensively and deeply involved in normal physiological functions and pathophysiological mechanisms of cells, its role in diseases is increasingly being paid attention to. The effect of PLK2 in inhibiting hematological tumors and fibrotic diseases, as well as participating in neurodegenerative diseases, has been gradually recognized. However, the research results in solid organ tumors show contradictory results. In addition, preliminary studies using PLK2 as a disease predictor and therapeutic target have yielded some exciting and promising results. More research will help people better understand PLK2 from principle to practice.
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Affiliation(s)
- Chuanyong Zhang
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
- Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, Nanjing, China
| | - Chuangye Ni
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
- Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, Nanjing, China
| | - Hao Lu
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
- Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, Nanjing, China
- *Correspondence: Hao Lu,
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10
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Korns J, Liu X, Takiar V. A review of Plks: Thinking outside the (polo) box. Mol Carcinog 2022; 61:254-263. [PMID: 35049091 DOI: 10.1002/mc.23388] [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: 11/01/2021] [Revised: 12/07/2021] [Accepted: 12/07/2021] [Indexed: 12/19/2022]
Abstract
The polo-like kinase (Plk) family is comprised of five different members (Plk1-5), each with their own distinct functions. Plk family members participate in pivotal cell division processes as well as in non-mitotic roles. Importantly, Plk expression has been correlated with various disease states, including cancer. Multiples therapies, which primarily target Plk1, are currently being investigated alone or in combination with other agents for clinical use in different cancers. As the role of Plks in disease progression becomes more prominent, it is important to outline their functions as cell cycle regulators and more. This review summarizes the structure and both mitotic and non-mitotic functions of each of the five Plk family members, sequentially. Additionally, the proposed mechanisms for how Plks contribute to tumorigenesis and the therapeutics currently under investigation are outlined.
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Affiliation(s)
- Julianna Korns
- Department of Radiation Oncology, University of Cincinnati College of Medicine, Cincinnat, Ohio, USA
| | - Xiaoqi Liu
- Department of Toxicology and Cancer Biology, University of Kentucky, Lexington, Kentucky, USA
| | - Vinita Takiar
- Department of Radiation Oncology, University of Cincinnati College of Medicine, Cincinnat, Ohio, USA.,Cincinnati VA Medical Center, Cincinnati, Ohio, USA
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11
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Junker N, Gossmann TI. Adaptation-Driven Evolution of Sirtuin 1 (SIRT1), a Key Regulator of Metabolism and Aging, in Marmot Species. Front Ecol Evol 2021. [DOI: 10.3389/fevo.2021.666564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The sirtuin protein family plays a role in the lifespan of various species and is involved in numerous key metabolic processes. To understand the evolutionary role of sirtuins in marmots, a long-living rodent species group with remarkable metabolic shutdown during hibernation, we conducted a phylogeny-based substitution rate analysis of coding genes based on genetic information of seven marmot species. We show that sirtuin 1 (SIRT1) has evolved under positive selection in the marmot lineage. We pinpoint three amino acid changes in four different marmot species that underlie the signal of positive selection and that may favor increased longevity in marmots. Based on a computational structural analysis we can show that all three substitutions affect the secondary structure of the same region in human SIRT1. We propose that the identified region is close to the catalytic domain and that the potential structural changes may impact the catalytic activity of the enzyme and therefore might be playing a functional role in marmot's extended lifespan and metabolic shutdown.
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Bahl S, Ling H, Acharige NPN, Santos-Barriopedro I, Pflum MKH, Seto E. EGFR phosphorylates HDAC1 to regulate its expression and anti-apoptotic function. Cell Death Dis 2021; 12:469. [PMID: 33976119 PMCID: PMC8113371 DOI: 10.1038/s41419-021-03697-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 04/07/2021] [Accepted: 04/08/2021] [Indexed: 02/03/2023]
Abstract
HDAC1 is the prototypical human histone deacetylase (HDAC) enzyme responsible for catalyzing the removal of acetyl group from lysine residues on many substrate proteins. By deacetylating histones and non-histone proteins, HDAC1 has a profound effect on the regulation of gene transcription and many processes related to cell growth and cell death, including cell cycle progression, DNA repair, and apoptosis. Early studies reveal that, like most eukaryotic proteins, the functions and activities of HDAC1 are regulated by post-translational modifications. For example, serine phosphorylation of HDAC1 by protein kinase CK2 promotes HDAC1 deacetylase enzymatic activity and alters its interactions with proteins in corepressor complexes. Here, we describe an alternative signaling pathway by which HDAC1 activities are regulated. Specifically, we discover that EGFR activity promotes the tyrosine phosphorylation of HDAC1, which is necessary for its protein stability. A key EGFR phosphorylation site on HDAC1, Tyr72, mediates HDAC1's anti-apoptotic function. Given that HDAC1 overexpression and EGFR activity are strongly related with tumor progression and cancer cell survival, HDAC1 tyrosine phosphorylation may present a possible target to manipulate HDAC1 protein levels in future potential cancer treatment strategies.
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Affiliation(s)
- Sonali Bahl
- Department of Biochemistry & Molecular Medicine, The George Washington University School of Medicine & Health Sciences, Washington, DC, USA
- GW Cancer Center, The George Washington University School of Medicine & Health Sciences, Washington, DC, USA
| | - Hongbo Ling
- Department of Biochemistry & Molecular Medicine, The George Washington University School of Medicine & Health Sciences, Washington, DC, USA
- GW Cancer Center, The George Washington University School of Medicine & Health Sciences, Washington, DC, USA
| | | | - Irene Santos-Barriopedro
- Department of Biochemistry & Molecular Medicine, The George Washington University School of Medicine & Health Sciences, Washington, DC, USA
- GW Cancer Center, The George Washington University School of Medicine & Health Sciences, Washington, DC, USA
| | - Mary Kay H Pflum
- Department of Chemistry, Wayne State University, Detroit, MI, USA
| | - Edward Seto
- Department of Biochemistry & Molecular Medicine, The George Washington University School of Medicine & Health Sciences, Washington, DC, USA.
- GW Cancer Center, The George Washington University School of Medicine & Health Sciences, Washington, DC, USA.
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Zhang Z, Xing X, Guan P, Song S, You G, Xia C, Liu T. Recent progress in agents targeting polo-like kinases: Promising therapeutic strategies. Eur J Med Chem 2021; 217:113314. [PMID: 33765606 DOI: 10.1016/j.ejmech.2021.113314] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 02/13/2021] [Accepted: 02/15/2021] [Indexed: 12/12/2022]
Abstract
Polo-like kinases (PLKs) play important roles in regulating multiple aspects of cell cycle and cell proliferation. In many cancer types, PLK family members are often dysregulated, which can lead to uncontrolled cell proliferation and aberrant cell division and has been shown to associate with poor prognosis of cancers. The key roles of PLK kinases in cancers lead to an enhanced interest in them as promising targets for anticancer drug development. In consideration of PLK inhibitors and some other anticancer agents, such as BRD4, EEF2K and Aurora inhibitors, exert synergy effects in cancer cells, dual-targeting of PLK and other cancer-related targets is regarded as an rational and potent strategy to enhance the effectiveness of single-targeting therapy for cancer treatment. This review introduces the PLK family members at first and then focuses on the recent advances of single-target PLK inhibitors and summarizes the corresponding SARs of them. Moreover, we discuss the synergisms between PLK and other anti-tumor targets, and sum up the current dual-target agents based on them.
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Affiliation(s)
- Zheng Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, Shandong, 271016, PR China
| | - Xiaolan Xing
- Yangtze River Pharmaceutical Group Shanghai Haini Pharmaceutical Co., Ltd. Pudong, Shanghai, 201100, PR China
| | - Peng Guan
- Department of Pharmacy, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, PR China
| | - Shubin Song
- Department of Breast Surgery, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, 250117, PR China
| | - Guirong You
- Department of Medicinal Chemistry, School of Pharmacy, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, Shandong, 271016, PR China
| | - Chengcai Xia
- Department of Medicinal Chemistry, School of Pharmacy, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, Shandong, 271016, PR China
| | - Tingting Liu
- Department of Medicinal Chemistry, School of Pharmacy, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, Shandong, 271016, PR China.
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14
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Raab CA, Raab M, Becker S, Strebhardt K. Non-mitotic functions of polo-like kinases in cancer cells. Biochim Biophys Acta Rev Cancer 2021; 1875:188467. [PMID: 33171265 DOI: 10.1016/j.bbcan.2020.188467] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 11/03/2020] [Accepted: 11/03/2020] [Indexed: 12/12/2022]
Abstract
Inhibitors of mitotic protein kinases are currently being developed as non-neurotoxic alternatives of microtubule-targeting agents (taxanes, vinca alkaloids) which provide a substantial survival benefit for patients afflicted with different types of solid tumors. Among the mitotic kinases, the cyclin-dependent kinases, the Aurora kinases, the kinesin spindle protein and Polo-like kinases (PLKs) have emerged as attractive targets of cancer therapeutics. The functions of mammalian PLK1-5 are traditionally linked to the regulation of the cell cycle and to the stress response. Especially the key role of PLK1 and PLK4 in cellular growth and proliferation, their overexpression in multiple types of human cancer and their druggability, make them appealing targets for cancer therapy. Inhibitors for PLK1 and PLK4 are currently being tested in multiple cancer trials. The clinical success of microtubule-targeting agents is attributed not solely to the induction of a mitotic arrest in cancer cells, but also to non-mitotic effects like targeting intracellular trafficking on microtubules. This raises the question whether new cancer targets like PLK1 and PLK4 regulate critical non-mitotic functions in tumor cells. In this article we summarize the important roles of PLK1-5 for the regulation of non-mitotic signaling. Due to these functions it is conceivable that inhibitors for PLK1 or PLK4 can target interphase cells, which underscores their attractive potential as cancer drug targets. Moreover, we also describe the contribution of the tumor-suppressors PLK2, PLK3 and PLK5 to cancer cell signaling outside of mitosis. These observations highlight the urgent need to develop highly specific ATP-competitive inhibitors for PLK4 and for PLK1 like the 3rd generation PLK-inhibitor Onvansertib to prevent the inhibition of tumor-suppressor PLKs in- and outside of mitosis. The remarkable feature of PLKs to encompass a unique druggable domain, the polo-box-domain (PBD) that can be found only in PLKs offers the opportunity for the development of inhibitors that target PLKs exclusively. Beyond the development of mono-specific ATP-competitive PLK inhibitors, the PBD as drug target will support the design of new drugs that eradicate cancer cells based on the mitotic and non-mitotic function of PLK1 and PLK4.
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Affiliation(s)
| | - Monika Raab
- Department of Gynecology, Goethe-University, Frankfurt, Germany
| | - Sven Becker
- Department of Gynecology, Goethe-University, Frankfurt, Germany
| | - Klaus Strebhardt
- Department of Gynecology, Goethe-University, Frankfurt, Germany; German Cancer Consortium (DKTK), German Cancer Research Center, Partner Site Frankfurt am Main, Frankfurt, Germany.
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15
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Wang T, Zou Y, Huang N, Teng J, Chen J. CCDC84 Acetylation Oscillation Regulates Centrosome Duplication by Modulating HsSAS-6 Degradation. Cell Rep 2020; 29:2078-2091.e5. [PMID: 31722219 DOI: 10.1016/j.celrep.2019.10.028] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 09/16/2019] [Accepted: 10/07/2019] [Indexed: 01/14/2023] Open
Abstract
In animal cells, centriole number is strictly controlled in order to guarantee faithful cell division and genetic stability, but the mechanism by which the accuracy of centrosome duplication is maintained is not fully understood. Here, we show that CCDC84 constrains centriole number by modulating APC/CCdh1-mediated HsSAS-6 degradation. More importantly, CCDC84 acetylation oscillates throughout the cell cycle, and the acetylation state of CCDC84 at lysine 31 is regulated by the deacetylase SIRT1 and the acetyltransferase NAT10. Deacetylated CCDC84 is responsible for its centrosome targeting, and acetylated CCDC84 promotes HsSAS-6 ubiquitination by enhancing the binding affinity of HsSAS-6 for Cdh1. Our findings shed new light on the function of (de)acetylation in centriole number regulation as well as refine the established centrosome duplication model.
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Affiliation(s)
- Tianning Wang
- Key Laboratory of Cell Proliferation and Differentiation of the Ministry of Education and State Key Laboratory of Membrane Biology, College of Life Sciences, Peking University, Beijing 100871, China
| | - Yuhong Zou
- Key Laboratory of Cell Proliferation and Differentiation of the Ministry of Education and State Key Laboratory of Membrane Biology, College of Life Sciences, Peking University, Beijing 100871, China
| | - Ning Huang
- Key Laboratory of Cell Proliferation and Differentiation of the Ministry of Education and State Key Laboratory of Membrane Biology, College of Life Sciences, Peking University, Beijing 100871, China
| | - Junlin Teng
- Key Laboratory of Cell Proliferation and Differentiation of the Ministry of Education and State Key Laboratory of Membrane Biology, College of Life Sciences, Peking University, Beijing 100871, China.
| | - Jianguo Chen
- Key Laboratory of Cell Proliferation and Differentiation of the Ministry of Education and State Key Laboratory of Membrane Biology, College of Life Sciences, Peking University, Beijing 100871, China; Center for Quantitative Biology, Peking University, Beijing 100871, China.
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16
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Lin X, Xiang X, Hao L, Wang T, Lai Y, Abudoureyimu M, Zhou H, Feng B, Chu X, Wang R. The role of Aurora-A in human cancers and future therapeutics. Am J Cancer Res 2020; 10:2705-2729. [PMID: 33042612 PMCID: PMC7539775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 08/05/2020] [Indexed: 06/11/2023] Open
Abstract
Aurora-A is a mitotic serine/threonine-protein kinase and an oncogene. In normal cells, Aurora-A appears from G2 phase and localizes at the centrosome, where it participates in centrosome replication, isolation and maturation. Aurora-A also maintains Golgi apparatus structure and spindle assembly. Aurora-A undergoes ubiquitination-mediated degradation after the cell division phase. Aurora-A is abnormally expressed in tumor cells and promotes cell proliferation by regulating mitotic substrates, such as PP1, PLK1, TPX2, and LAST2, and affects other molecules through a non-mitotic pathway to promote cell invasion and metastasis. Some molecules in tumor cells also indirectly act on Aurora-A to regulate tumor cells. Aurora-A also mediates resistance to chemotherapy and radiotherapy and is involved in tumor immunotherapy. Clinical trials of Aurora-A molecular inhibitors are currently underway, and clinical transformation is just around the corner.
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Affiliation(s)
- Xinrong Lin
- Department of Medical Oncology, Affiliated Jinling Hospital, Medical School of Nanjing UniversityNanjing, China
| | - Xiaosong Xiang
- Affiliated Jinling Hospital Research Institution of General Surgery, Medical School of Nanjing UniversityNanjing, China
| | - Liping Hao
- Department of Medical Oncology, Affiliated Jinling Hospital, Medical School of Nanjing UniversityNanjing, China
| | - Ting Wang
- Department of Medical Oncology, Affiliated Jinling Hospital, Medical School of Nanjing UniversityNanjing, China
| | - Yongting Lai
- Department of Medical Oncology, Affiliated Jinling Hospital, Medical School of Nanjing University, First School of Clinical Medicine, Southern Medical UniversityNanjing, China
| | - Mubalake Abudoureyimu
- Department of Medical Oncology, Affiliated Jinling Hospital, Medical School of Nanjing UniversityNanjing, China
| | - Hao Zhou
- Department of Medical Oncology, Affiliated Jinling Hospital, Medical School of Nanjing UniversityNanjing, China
| | - Bing Feng
- Department of Medical Oncology, Affiliated Jinling Hospital, Medical School of Nanjing UniversityNanjing, China
| | - Xiaoyuan Chu
- Department of Medical Oncology, Affiliated Jinling Hospital, Medical School of Nanjing UniversityNanjing, China
| | - Rui Wang
- Department of Medical Oncology, Affiliated Jinling Hospital, Medical School of Nanjing UniversityNanjing, China
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17
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Bergmann L, Lang A, Bross C, Altinoluk-Hambüchen S, Fey I, Overbeck N, Stefanski A, Wiek C, Kefalas A, Verhülsdonk P, Mielke C, Sohn D, Stühler K, Hanenberg H, Jänicke RU, Scheller J, Reichert AS, Ahmadian MR, Piekorz RP. Subcellular Localization and Mitotic Interactome Analyses Identify SIRT4 as a Centrosomally Localized and Microtubule Associated Protein. Cells 2020; 9:E1950. [PMID: 32846968 PMCID: PMC7564595 DOI: 10.3390/cells9091950] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 08/14/2020] [Accepted: 08/21/2020] [Indexed: 02/07/2023] Open
Abstract
The stress-inducible and senescence-associated tumor suppressor SIRT4, a member of the family of mitochondrial sirtuins (SIRT3, SIRT4, and SIRT5), regulates bioenergetics and metabolism via NAD+-dependent enzymatic activities. Next to the known mitochondrial location, we found that a fraction of endogenous or ectopically expressed SIRT4, but not SIRT3, is present in the cytosol and predominantly localizes to centrosomes. Confocal spinning disk microscopy revealed that SIRT4 is found during the cell cycle dynamically at centrosomes with an intensity peak in G2 and early mitosis. Moreover, SIRT4 precipitates with microtubules and interacts with structural (α,β-tubulin, γ-tubulin, TUBGCP2, TUBGCP3) and regulatory (HDAC6) microtubule components as detected by co-immunoprecipitation and mass spectrometric analyses of the mitotic SIRT4 interactome. Overexpression of SIRT4 resulted in a pronounced decrease of acetylated α-tubulin (K40) associated with altered microtubule dynamics in mitotic cells. SIRT4 or the N-terminally truncated variant SIRT4(ΔN28), which is unable to translocate into mitochondria, delayed mitotic progression and reduced cell proliferation. This study extends the functional roles of SIRT4 beyond mitochondrial metabolism and provides the first evidence that SIRT4 acts as a novel centrosomal/microtubule-associated protein in the regulation of cell cycle progression. Thus, stress-induced SIRT4 may exert its role as tumor suppressor through mitochondrial as well as extramitochondrial functions, the latter associated with its localization at the mitotic spindle apparatus.
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Affiliation(s)
- Laura Bergmann
- Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Alexander Lang
- Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Christoph Bross
- Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Simone Altinoluk-Hambüchen
- Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Iris Fey
- Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Nina Overbeck
- Molecular Proteomics Laboratory, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Anja Stefanski
- Molecular Proteomics Laboratory, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Constanze Wiek
- Department of Otolaryngology and Head/Neck Surgery, Medical Faculty, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Andreas Kefalas
- Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Patrick Verhülsdonk
- Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Christian Mielke
- Institute of Clinical Chemistry and Laboratory Diagnostics, Medical Faculty, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Dennis Sohn
- Laboratory of Molecular Radiooncology, Clinic and Policlinic for Radiation Therapy and Radiooncology, Medical Faculty, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Kai Stühler
- Molecular Proteomics Laboratory, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
- Institute for Molecular Medicine I, Medical Faculty, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Helmut Hanenberg
- Department of Otolaryngology and Head/Neck Surgery, Medical Faculty, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
- Department of Pediatrics III, University Hospital Essen, University Duisburg-Essen, 45112 Essen, Germany
| | - Reiner U Jänicke
- Laboratory of Molecular Radiooncology, Clinic and Policlinic for Radiation Therapy and Radiooncology, Medical Faculty, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Jürgen Scheller
- Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Andreas S Reichert
- Institute of Biochemistry and Molecular Biology I, Medical Faculty, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Mohammad Reza Ahmadian
- Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Roland P Piekorz
- Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
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18
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Regulation of histone deacetylase activities and functions by phosphorylation and its physiological relevance. Cell Mol Life Sci 2020; 78:427-445. [PMID: 32683534 DOI: 10.1007/s00018-020-03599-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 07/02/2020] [Accepted: 07/09/2020] [Indexed: 12/31/2022]
Abstract
Histone deacetylases (HDACs) are conserved enzymes that regulate many cellular processes by catalyzing the removal of acetyl groups from lysine residues on histones and non-histone proteins. As appropriate for proteins that occupy such an essential biological role, HDAC activities and functions are in turn highly regulated. Overwhelming evidence suggests that the dysregulation of HDACs plays a major role in many human diseases. The regulation of HDACs is achieved by multiple different mechanisms, including posttranslational modifications. One of the most common posttranslational modifications on HDACs is reversible phosphorylation. Many HDAC phosphorylations are context-dependent, occurring in specific tissues or as a consequence of certain stimuli. Additionally, whereas phosphorylation can regulate some HDACs in a non-specific manner, many HDAC phosphorylations result in specific consequences. Although some of these modifications support normal HDAC function, aberrations can contribute to disease development. Here we review and critically evaluate how reversible phosphorylation activates or deactivates HDACs and, thereby, regulates their many functions under various cellular and physiological contexts.
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19
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Dejene EA, Li Y, Showkatian Z, Ling H, Seto E. Regulation of poly(a)-specific ribonuclease activity by reversible lysine acetylation. J Biol Chem 2020; 295:10255-10270. [PMID: 32457045 DOI: 10.1074/jbc.ra120.012552] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 05/20/2020] [Indexed: 12/26/2022] Open
Abstract
Poly(A)-specific ribonuclease (PARN) is a 3'-exoribonuclease that plays an important role in regulating the stability and maturation of RNAs. Recently, PARN has been found to regulate the maturation of the human telomerase RNA component (hTR), a noncoding RNA required for telomere elongation. Specifically, PARN cleaves the 3'-end of immature, polyadenylated hTR to form the mature, nonpolyadenylated template. Despite PARN's critical role in mediating telomere maintenance, little is known about how PARN's function is regulated by post-translational modifications. In this study, using shRNA- and CRISPR/Cas9-mediated gene silencing and knockout approaches, along with 3'-exoribonuclease activity assays and additional biochemical methods, we examined whether PARN is post-translationally modified by acetylation and what effect acetylation has on PARN's activity. We found PARN is primarily acetylated by the acetyltransferase p300 at Lys-566 and deacetylated by sirtuin1 (SIRT1). We also revealed how acetylation of PARN can decrease its enzymatic activity both in vitro, using a synthetic RNA probe, and in vivo, by quantifying endogenous levels of adenylated hTR. Furthermore, we also found that SIRT1 can regulate levels of adenylated hTR through PARN. The findings of our study uncover a mechanism by which PARN acetylation and deacetylation regulate its enzymatic activity as well as levels of mature hTR. Thus, PARN's acetylation status may play a role in regulating telomere length.
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Affiliation(s)
- Eden A Dejene
- Department of Biochemistry and Molecular Medicine, George Washington University School of Medicine and Health Sciences, Washington, D.C., USA.,George Washington University Cancer Center, Washington, D.C., USA
| | - Yixuan Li
- Department of Biochemistry and Molecular Medicine, George Washington University School of Medicine and Health Sciences, Washington, D.C., USA.,George Washington University Cancer Center, Washington, D.C., USA
| | - Zahra Showkatian
- Department of Biochemistry and Molecular Medicine, George Washington University School of Medicine and Health Sciences, Washington, D.C., USA.,George Washington University Cancer Center, Washington, D.C., USA
| | - Hongbo Ling
- Department of Biochemistry and Molecular Medicine, George Washington University School of Medicine and Health Sciences, Washington, D.C., USA.,George Washington University Cancer Center, Washington, D.C., USA
| | - Edward Seto
- Department of Biochemistry and Molecular Medicine, George Washington University School of Medicine and Health Sciences, Washington, D.C., USA .,George Washington University Cancer Center, Washington, D.C., USA
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20
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Zhang GZ, Deng YJ, Xie QQ, Ren EH, Ma ZJ, He XG, Gao YC, Kang XW. Sirtuins and intervertebral disc degeneration: Roles in inflammation, oxidative stress, and mitochondrial function. Clin Chim Acta 2020; 508:33-42. [PMID: 32348785 DOI: 10.1016/j.cca.2020.04.016] [Citation(s) in RCA: 95] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 04/14/2020] [Accepted: 04/14/2020] [Indexed: 12/16/2022]
Abstract
Intervertebral disc degeneration (IDD) is one of the main causes of low back pain, which seriously reduces the quality of life of patients and places a heavy economic burden on their families. Cellular senescence is considered to be an important factor leading to IDD, and inflammatory response, oxidative stress, and mitochondrial dysfunction are closely related to intervertebral disc (IVD) senescence. Therefore, inhibition of the inflammatory response and oxidative stress, along with maintaining mitochondrial function, may be useful in treating IDD. The sirtuins are a family of evolutionarily conserved nicotinamide adenine dinucleotide (NAD+)-dependent histone deacetylases, which are the major molecules mediating life extension or delay of aging-related diseases. The sirtuin protein family consist of seven members (SIRT1 - 7), which are mainly involved in various aging-related diseases by regulating inflammation, oxidative stress, and mitochondrial function. Among them, SIRT1, SIRT2, SIRT3, and SIRT6 are closely related to IDD. In addition, some activators of sirtuin proteins, such as resveratrol, melatonin, magnolol, 1,4-dihydropyridine (DHP), SRT1720, and nicotinamide mononucleotide (NMN), have been evaluated in preclinical studies for their effects in preventing IDD. This review described the biological functions of sirtuins and the important roles of SIRT1, SIRT2, SIRT3, and SIRT6 in IDD by regulating oxidative stress, inflammatory response, and mitochondrial function. In addition, we introduce the status of some sirtuin activators in IDD preclinical studies. This review will provide a background for further clarification of the molecular mechanism underlying IDD and the development of potential therapeutic drugs.
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Affiliation(s)
- Guang-Zhi Zhang
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu 730000, PR China
| | - Ya-Jun Deng
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu 730000, PR China
| | - Qi-Qi Xie
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu 730000, PR China
| | - En-Hui Ren
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu 730000, PR China
| | - Zhan-Jun Ma
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu 730000, PR China
| | - Xue-Gang He
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu 730000, PR China
| | - Yi-Cheng Gao
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu 730000, PR China
| | - Xue-Wen Kang
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu 730000, PR China; Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou, Gansu 730000, PR China; The International Cooperation Base of Gansu Province for The Pain Research in Spinal Disorders, Gansu 730000, PR China.
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21
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Zeng Y, Shi Y, Zhan H, Liu W, Cai G, Zhong H, Wang Y, Chen S, Huang S, Wu W. Reduction of Silent Information Regulator 1 Activates Interleukin-33/ST2 Signaling and Contributes to Neuropathic Pain Induced by Spared Nerve Injury in Rats. Front Mol Neurosci 2020; 13:17. [PMID: 32116550 PMCID: PMC7028692 DOI: 10.3389/fnmol.2020.00017] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 01/20/2020] [Indexed: 12/12/2022] Open
Abstract
Emerging studies have demonstrated that interleukin (IL)-33 and its receptor ST2 act as key factors in inflammatory diseases. Moreover, accumulating evidence has suggested that cytokines, including tumor necrosis factor (TNF)-α and IL-1β, trigger an inflammatory cascade. SIRT1 has been shown to suppress the expression of inflammatory cytokines. However, the effects of SIRT1 on IL-33/ST2 signaling and initiation of the inflammatory cascade via modulation of TNF-α and IL-1β by IL-33 remain unclear. In the present study, we found that the dorsal root ganglion (DRG) IL-33 and ST2 were upregulated in a rat model of spared nerve injury (SNI) and intrathecal injection of either IL-33 or ST2 antibodies alleviated mechanical allodynia and downregulated TNF-α and IL-1β induced by SNI. In addition, activation of SIRT1 decreased enhanced DRG IL-33/ST2 signaling in SNI rats. Artificial inactivation of SIRT1 via intrathecal injection of an SIRT1 antagonist could induce mechanical allodynia and upregulate IL-33 and ST2. These results demonstrated that reduction in SIRT1 could induce upregulation of DRG IL-33 and ST2 and contribute to mechanical allodynia induced by SNI in rats.
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Affiliation(s)
- Yanyan Zeng
- Department of Rehabilitation, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Yu Shi
- Department of Rehabilitation, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Hongrui Zhan
- Department of Rehabilitation, Zhujiang Hospital, Southern Medical University, Guangzhou, China.,Department of Rehabilitation, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China
| | - Wei Liu
- Department of Rehabilitation, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Guiyuan Cai
- Department of Rehabilitation, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Haili Zhong
- Department of Rehabilitation, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Yaping Wang
- Department of Rehabilitation, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Shangjie Chen
- Department of Rehabilitation, Baoan Hospital, Southern Medical University, Shenzhen, China
| | - Shimin Huang
- Department of Rehabilitation, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Wen Wu
- Department of Rehabilitation, Zhujiang Hospital, Southern Medical University, Guangzhou, China
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