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Sun X, Cao S, Mao C, Sun F, Zhang X, Song Y. Post-translational modifications of p65: state of the art. Front Cell Dev Biol 2024; 12:1417502. [PMID: 39050887 PMCID: PMC11266062 DOI: 10.3389/fcell.2024.1417502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Accepted: 06/14/2024] [Indexed: 07/27/2024] Open
Abstract
P65, a protein subunit of NF-κB, is a widely distributed transcription factor in eukaryotic cells and exerts diverse regulatory functions. Post-translational modifications such as phosphorylation, acetylation, methylation and ubiquitination modulate p65 transcriptional activity and function, impacting various physiological and pathological processes including inflammation, immune response, cell death, proliferation, differentiation and tumorigenesis. The intricate interplay between these modifications can be antagonistic or synergistic. Understanding p65 post-translational modifications not only elucidates NF-κB pathway regulation but also facilitates the identification of therapeutic targets and diagnostic markers for associated clinical conditions.
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Affiliation(s)
- Xutao Sun
- Department of Typhoid, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Shuo Cao
- Department of Pharmacology, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Caiyun Mao
- Department of Pharmacology, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Fengqi Sun
- Department of Pathology, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Xuanming Zhang
- Department of Orthopedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yunjia Song
- Department of Pharmacology, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin, China
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2
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Zhang J, Yu Y, Zou X, Du Y, Liang Q, Gong M, He Y, Luo J, Wu D, Jiang X, Sinclair M, Tajkhorshid E, Chen HZ, Hou Z, Zheng Y, Chen LF, Yang XD. WSB1/2 target chromatin-bound lysine-methylated RelA for proteasomal degradation and NF-κB termination. Nucleic Acids Res 2024; 52:4969-4984. [PMID: 38452206 PMCID: PMC11109945 DOI: 10.1093/nar/gkae161] [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: 06/06/2023] [Revised: 02/08/2024] [Accepted: 02/22/2024] [Indexed: 03/09/2024] Open
Abstract
Proteasome-mediated degradation of chromatin-bound NF-κB is critical in terminating the transcription of pro-inflammatory genes and can be triggered by Set9-mediated lysine methylation of the RelA subunit. However, the E3 ligase targeting methylated RelA remains unknown. Here, we find that two structurally similar substrate-recognizing components of Cullin-RING E3 ligases, WSB1 and WSB2, can recognize chromatin-bound methylated RelA for polyubiquitination and proteasomal degradation. We showed that WSB1/2 negatively regulated a subset of NF-κB target genes via associating with chromatin where they targeted methylated RelA for ubiquitination, facilitating the termination of NF-κB-dependent transcription. WSB1/2 specifically interacted with methylated lysines (K) 314 and 315 of RelA via their N-terminal WD-40 repeat (WDR) domains, thereby promoting ubiquitination of RelA. Computational modeling further revealed that a conserved aspartic acid (D) at position 158 within the WDR domain of WSB2 coordinates K314/K315 of RelA, with a higher affinity when either of the lysines is methylated. Mutation of D158 abolished WSB2's ability to bind to and promote ubiquitination of methylated RelA. Together, our study identifies a novel function and the underlying mechanism for WSB1/2 in degrading chromatin-bound methylated RelA and preventing sustained NF-κB activation, providing potential new targets for therapeutic intervention of NF-κB-mediated inflammatory diseases.
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Affiliation(s)
- Jie Zhang
- Hongqiao Institute of Medicine, Tongren Hospital/Faculty of Basic Medicine, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Yuanyuan Yu
- The Research Center for Traditional Chinese Medicine, Shanghai Institute of Infectious Diseases and Biosecurity, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
- Center for Traditional Chinese Medicine and Immunology Research, School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xiuqun Zou
- Hongqiao Institute of Medicine, Tongren Hospital/Faculty of Basic Medicine, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Yaning Du
- Hongqiao Institute of Medicine, Tongren Hospital/Faculty of Basic Medicine, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Qiankun Liang
- The Research Center for Traditional Chinese Medicine, Shanghai Institute of Infectious Diseases and Biosecurity, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
- Center for Traditional Chinese Medicine and Immunology Research, School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Mengyao Gong
- The Research Center for Traditional Chinese Medicine, Shanghai Institute of Infectious Diseases and Biosecurity, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
- Center for Traditional Chinese Medicine and Immunology Research, School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yurong He
- The Research Center for Traditional Chinese Medicine, Shanghai Institute of Infectious Diseases and Biosecurity, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
- Center for Traditional Chinese Medicine and Immunology Research, School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Junqi Luo
- The Research Center for Traditional Chinese Medicine, Shanghai Institute of Infectious Diseases and Biosecurity, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
- Center for Traditional Chinese Medicine and Immunology Research, School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Dandan Wu
- Shanghai Institute of Immunology, and Department of Immunology and Microbiology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Xiaoli Jiang
- Shanghai Institute of Immunology, and Department of Immunology and Microbiology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Matt Sinclair
- Theoretical and Computational Biophysics Group, NIH Center for Macromolecular Modeling and Visualization, Beckman Institute for Advanced Science and Technology, and Center for Biophysics and Quantitative Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Emad Tajkhorshid
- Theoretical and Computational Biophysics Group, NIH Center for Macromolecular Modeling and Visualization, Beckman Institute for Advanced Science and Technology, and Center for Biophysics and Quantitative Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Hong-Zhuan Chen
- The Research Center for Traditional Chinese Medicine, Shanghai Institute of Infectious Diseases and Biosecurity, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
- Shuguang lab of Future Health, Shanghai Frontiers Science Center of TCM Chemical Biology, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Zhaoyuan Hou
- Hongqiao Institute of Medicine, Tongren Hospital/Faculty of Basic Medicine, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
- Linyi University-Shanghai Jiaotong University Joint Institute of Translational Medicine, Linyi University, Shandong 276000, China
| | - Yuejuan Zheng
- The Research Center for Traditional Chinese Medicine, Shanghai Institute of Infectious Diseases and Biosecurity, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
- Center for Traditional Chinese Medicine and Immunology Research, School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Lin-Feng Chen
- Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Xiao-Dong Yang
- The Research Center for Traditional Chinese Medicine, Shanghai Institute of Infectious Diseases and Biosecurity, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
- Center for Traditional Chinese Medicine and Immunology Research, School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
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3
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Alganatay C, Balbasi E, Tuncbag N, Sezginmert D, Terzi Cizmecioglu N. SETD3 regulates endoderm differentiation of mouse embryonic stem cells through canonical Wnt signaling pathway. FASEB J 2024; 38:e23463. [PMID: 38334393 DOI: 10.1096/fj.202301883r] [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: 09/15/2023] [Revised: 12/19/2023] [Accepted: 01/22/2024] [Indexed: 02/10/2024]
Abstract
With self-renewal and pluripotency features, embryonic stem cells (ESCs) provide an invaluable tool to investigate early cell fate decisions. Pluripotency exit and lineage commitment depend on precise regulation of gene expression that requires coordination between transcription (TF) and chromatin factors in response to various signaling pathways. SET domain-containing 3 (SETD3) is a methyltransferase that can modify histones in the nucleus and actin in the cytoplasm. Through an shRNA screen, we previously identified SETD3 as an important factor in the meso/endodermal lineage commitment of mouse ESCs (mESC). In this study, we identified SETD3-dependent transcriptomic changes during endoderm differentiation of mESCs using time-course RNA-seq analysis. We found that SETD3 is involved in the timely activation of the endoderm-related gene network. The canonical Wnt signaling pathway was one of the markedly altered signaling pathways in the absence of SETD3. The assessment of Wnt transcriptional activity revealed a significant reduction in Setd3-deleted (setd3∆) mESCs coincident with a decrease in the nuclear pool of the key TF β-catenin level, though no change was observed in its mRNA or total protein level. Furthermore, a proximity ligation assay (PLA) found an interaction between SETD3 and β-catenin. We were able to rescue the differentiation defect by stably re-expressing SETD3 or activating the canonical Wnt signaling pathway by changing mESC culture conditions. Our results suggest that alterations in the canonical Wnt pathway activity and subcellular localization of β-catenin might contribute to the endoderm differentiation defect of setd3∆ mESCs.
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Affiliation(s)
- Ceren Alganatay
- Faculty of Arts and Sciences, Department of Biological Sciences, Middle East Technical University, Ankara, Turkey
| | - Emre Balbasi
- Faculty of Arts and Sciences, Department of Biological Sciences, Middle East Technical University, Ankara, Turkey
| | | | - Dersu Sezginmert
- Faculty of Arts and Sciences, Department of Biological Sciences, Middle East Technical University, Ankara, Turkey
| | - Nihal Terzi Cizmecioglu
- Faculty of Arts and Sciences, Department of Biological Sciences, Middle East Technical University, Ankara, Turkey
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4
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Sun H, Zhang H. Lysine Methylation-Dependent Proteolysis by the Malignant Brain Tumor (MBT) Domain Proteins. Int J Mol Sci 2024; 25:2248. [PMID: 38396925 PMCID: PMC10889763 DOI: 10.3390/ijms25042248] [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: 12/14/2023] [Revised: 02/07/2024] [Accepted: 02/08/2024] [Indexed: 02/25/2024] Open
Abstract
Lysine methylation is a major post-translational protein modification that occurs in both histones and non-histone proteins. Emerging studies show that the methylated lysine residues in non-histone proteins provide a proteolytic signal for ubiquitin-dependent proteolysis. The SET7 (SETD7) methyltransferase specifically transfers a methyl group from S-Adenosyl methionine to a specific lysine residue located in a methylation degron motif of a protein substrate to mark the methylated protein for ubiquitin-dependent proteolysis. LSD1 (Kdm1a) serves as a demethylase to dynamically remove the methyl group from the modified protein. The methylated lysine residue is specifically recognized by L3MBTL3, a methyl-lysine reader that contains the malignant brain tumor domain, to target the methylated proteins for proteolysis by the CRL4DCAF5 ubiquitin ligase complex. The methylated lysine residues are also recognized by PHF20L1 to protect the methylated proteins from proteolysis. The lysine methylation-mediated proteolysis regulates embryonic development, maintains pluripotency and self-renewal of embryonic stem cells and other stem cells such as neural stem cells and hematopoietic stem cells, and controls other biological processes. Dysregulation of the lysine methylation-dependent proteolysis is associated with various diseases, including cancers. Characterization of lysine methylation should reveal novel insights into how development and related diseases are regulated.
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Affiliation(s)
| | - Hui Zhang
- Department of Chemistry and Biochemistry, Nevada Institute of Personalized Medicine, University of Nevada, Las Vegas, 4505 South Maryland Parkway, P.O. Box 454003, Las Vegas, NV 89154-4003, USA;
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5
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Bo Z, Li X, Wang S, Zhang C, Guo M, Cao Y, Zhang X, Wu Y. Suppression of NF-κB signaling by Pseudorabies virus DNA polymerase processivity factor UL42 via recruiting SOCS1 to promote the ubiquitination degradation of p65. Vet Microbiol 2023; 287:109896. [PMID: 37931575 DOI: 10.1016/j.vetmic.2023.109896] [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: 09/06/2023] [Revised: 10/18/2023] [Accepted: 10/21/2023] [Indexed: 11/08/2023]
Abstract
The NF-κB pathway is a critical signaling involved in the regulation of the inflammatory and innate immune responses. Previous studies have shown that Pseudorabies Virus (PRV), a porcine alpha herpesvirus, could lead to the phosphorylation and nucleus translocation of p65 while inhibiting the expression of NF-κB-dependent inflammatory cytokines, which indicated that there may be unknown mechanisms downstream of p65 that downregulate the activation of NF-κB signaling. Here, we found that PRV DNA polymerase factor UL42 inhibited TNFα-, LPS-, IKKα-, IKKβ-, and p65-mediated transactivation of NF-κB signaling, which demonstrated UL42 worked either at or downstream of p65. In addition, it was found that the DNA-binding activity of UL42 was required for inhibition of NF-κB signaling. Importantly, it was revealed that UL42 could induce the ubiquitination degradation of p65 by upregulating the suppressor of cytokine signaling 1 (SOCS1). Additionally, it was found that UL42 could promote the K6/K29-linked ubiquitination of p65. Finally, knockdown of SOCS1 attenuated the replication of PRV and led to a significant increase of the inflammatory cytokines. Taken together, our findings uncovered a novel mechanism that PRV-UL42 could upregulated SOCS1 to promote the ubiquitination degradation of p65 to prevent excessive inflammatory response during PRV infection.
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Affiliation(s)
- Zongyi Bo
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, China; Jiangsu Co-Innovation Center for the Prevention and Control of Animal Infectious Disease and Zoonoses, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
| | - Xiaojuan Li
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, China; Jiangsu Co-Innovation Center for the Prevention and Control of Animal Infectious Disease and Zoonoses, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
| | - Shixu Wang
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, China; Jiangsu Co-Innovation Center for the Prevention and Control of Animal Infectious Disease and Zoonoses, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
| | - Chengcheng Zhang
- Jiangsu Co-Innovation Center for the Prevention and Control of Animal Infectious Disease and Zoonoses, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
| | - Mengjiao Guo
- Jiangsu Co-Innovation Center for the Prevention and Control of Animal Infectious Disease and Zoonoses, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
| | - Yongzhong Cao
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, China; Jiangsu Co-Innovation Center for the Prevention and Control of Animal Infectious Disease and Zoonoses, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
| | - Xiaorong Zhang
- Jiangsu Co-Innovation Center for the Prevention and Control of Animal Infectious Disease and Zoonoses, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
| | - Yantao Wu
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, China; Jiangsu Co-Innovation Center for the Prevention and Control of Animal Infectious Disease and Zoonoses, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China.
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6
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Dwivedi S, Chavan A, Paul AT. SET7, a lysine-specific methyl transferase: An intriguing epigenetic target to combat diabetic nephropathy. Drug Discov Today 2023; 28:103754. [PMID: 37648018 DOI: 10.1016/j.drudis.2023.103754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 07/14/2023] [Accepted: 08/24/2023] [Indexed: 09/01/2023]
Abstract
Diabetic nephropathy (DN) is a dreadful complication of diabetes that affects ∼50% of diabetics and is a leading cause of end-stage renal disease (ESRD). Studies have linked aberrant expression of lysine methyltransferases (KMTs) to the onset and progression of DN. SET7 is a KMT that methylates specific lysine residues of the histone and nonhistone proteins. It plays an important role in the transforming growth factor-β (TGF-β)-induced upregulation of extracellular matrix (ECM)-associated genes that are responsible for the inflammatory cascade observed in DN. Inhibiting SET7 has potential to attenuate renal disorders in animal studies. This review will focus on the role of SET7 in DN and its potential as a therapeutic target to combat DN.
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Affiliation(s)
- Samarth Dwivedi
- Natural Product Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science (Pilani Campus), Pilani 333031, Rajasthan, India
| | - Atharva Chavan
- Natural Product Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science (Pilani Campus), Pilani 333031, Rajasthan, India
| | - Atish T Paul
- Natural Product Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science (Pilani Campus), Pilani 333031, Rajasthan, India.
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7
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Chiang CY, Fan S, Zheng H, Guo W, Zheng Z, Sun Y, Zhong C, Zeng J, Li S, Zhang M, Xiao T, Zheng D. Methylation of KRAS by SETD7 promotes KRAS degradation in non-small cell lung cancer. Cell Rep 2023; 42:113003. [PMID: 37682707 DOI: 10.1016/j.celrep.2023.113003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 06/18/2023] [Accepted: 08/02/2023] [Indexed: 09/10/2023] Open
Abstract
Oncogenic KRAS mutations are a key driver for initiation and progression in non-small cell lung cancer (NSCLC). However, how post-translational modifications (PTMs) of KRAS, especially methylation, modify KRAS activity remain largely unclear. Here, we show that SET domain containing histone lysine methyltransferase 7 (SETD7) interacts with KRAS and methylates KRAS at lysines 182 and 184. SETD7-mediated methylation of KRAS leads to degradation of KRAS and attenuation of the RAS/MEK/ERK signaling cascade, endowing SETD7 with a potent tumor-suppressive role in NSCLC, both in vitro and in vivo. Mechanistically, RABGEF1, a ubiquitin E3 ligase of KRAS, is recruited and promotes KRAS degradation in a K182/K184 methylation-dependent manner. Notably, SETD7 is inversely correlated with KRAS at the protein level in clinical NSCLC tissues. Low SETD7 or RABGEF1 expression is associated with poor prognosis in lung adenocarcinoma patients. Altogether, our results define a tumor-suppressive function of SETD7 that operates via modulating KRAS methylation and degradation.
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Affiliation(s)
- Cheng-Yao Chiang
- Guangdong Key Laboratory of Genome Instability and Human Disease Prevention, International Cancer Center, Department of Cell Biology and Genetics, Shenzhen University Medical School, Thoracic Surgery Department of the First Affiliated Hospital, Shenzhen University, Shenzhen 518055, China
| | - Songqing Fan
- Department of Pathology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Hongmei Zheng
- Department of Pathology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Wenjun Guo
- Guangdong Key Laboratory of Genome Instability and Human Disease Prevention, International Cancer Center, Department of Cell Biology and Genetics, Shenzhen University Medical School, Thoracic Surgery Department of the First Affiliated Hospital, Shenzhen University, Shenzhen 518055, China
| | - Zehan Zheng
- Guangdong Key Laboratory of Genome Instability and Human Disease Prevention, International Cancer Center, Department of Cell Biology and Genetics, Shenzhen University Medical School, Thoracic Surgery Department of the First Affiliated Hospital, Shenzhen University, Shenzhen 518055, China
| | - Yihua Sun
- Department of Thoracic Surgery, Fudan University Shanghai Cancer Center, Shanghai 200032, China
| | - Chuanqi Zhong
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Juan Zeng
- School of Biomedical Engineering, Guangdong Medical University, Dongguan, Guangdong 523808, China
| | - Shuaihu Li
- Guangdong Key Laboratory of Genome Instability and Human Disease Prevention, International Cancer Center, Department of Cell Biology and Genetics, Shenzhen University Medical School, Thoracic Surgery Department of the First Affiliated Hospital, Shenzhen University, Shenzhen 518055, China
| | - Min Zhang
- Guangdong Key Laboratory of Genome Instability and Human Disease Prevention, International Cancer Center, Department of Cell Biology and Genetics, Shenzhen University Medical School, Thoracic Surgery Department of the First Affiliated Hospital, Shenzhen University, Shenzhen 518055, China
| | - Tian Xiao
- Guangdong Key Laboratory of Genome Instability and Human Disease Prevention, International Cancer Center, Department of Cell Biology and Genetics, Shenzhen University Medical School, Thoracic Surgery Department of the First Affiliated Hospital, Shenzhen University, Shenzhen 518055, China.
| | - Duo Zheng
- Guangdong Key Laboratory of Genome Instability and Human Disease Prevention, International Cancer Center, Department of Cell Biology and Genetics, Shenzhen University Medical School, Thoracic Surgery Department of the First Affiliated Hospital, Shenzhen University, Shenzhen 518055, China.
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8
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Guo Z, Hu YH, Feng GS, Valenzuela Ripoll C, Li ZZ, Cai SD, Wang QQ, Luo WW, Li Q, Liang LY, Wu ZK, Zhang JG, Javaheri A, Wang L, Lu J, Liu PQ. JMJD6 protects against isoproterenol-induced cardiac hypertrophy via inhibition of NF-κB activation by demethylating R149 of the p65 subunit. Acta Pharmacol Sin 2023; 44:1777-1789. [PMID: 37186122 PMCID: PMC10462732 DOI: 10.1038/s41401-023-01086-7] [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: 05/02/2022] [Accepted: 04/02/2023] [Indexed: 05/17/2023] Open
Abstract
Histone modification plays an important role in pathological cardiac hypertrophy and heart failure. In this study we investigated the role of a histone arginine demethylase, Jumonji C domain-containing protein 6 (JMJD6) in pathological cardiac hypertrophy. Cardiac hypertrophy was induced in rats by subcutaneous injection of isoproterenol (ISO, 1.2 mg·kg-1·d-1) for a week. At the end of the experiment, the rats underwent echocardiography, followed by euthanasia and heart collection. We found that JMJD6 levels were compensatorily increased in ISO-induced hypertrophic cardiac tissues, but reduced in patients with heart failure with reduced ejection fraction (HFrEF). Furthermore, we demonstrated that JMJD6 overexpression significantly attenuated ISO-induced hypertrophy in neonatal rat cardiomyocytes (NRCMs) evidenced by the decreased cardiomyocyte surface area and hypertrophic genes expression. Cardiac-specific JMJD6 overexpression in rats protected the hearts against ISO-induced cardiac hypertrophy and fibrosis, and rescued cardiac function. Conversely, depletion of JMJD6 by single-guide RNA (sgRNA) exacerbated ISO-induced hypertrophic responses in NRCMs. We revealed that JMJD6 interacted with NF-κB p65 in cytoplasm and reduced nuclear levels of p65 under hypertrophic stimulation in vivo and in vitro. Mechanistically, JMJD6 bound to p65 and demethylated p65 at the R149 residue to inhibit the nuclear translocation of p65, thus inactivating NF-κB signaling and protecting against pathological cardiac hypertrophy. In addition, we found that JMJD6 demethylated histone H3R8, which might be a new histone substrate of JMJD6. These results suggest that JMJD6 may be a potential target for therapeutic interventions in cardiac hypertrophy and heart failure.
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Affiliation(s)
- Zhen Guo
- School of Pharmaceutical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, 271016, China
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences; National and Local United Engineering Lab of Druggability and New Drugs Evaluation; Guangdong Engineering Laboratory of Druggability and New Drug Evaluation; Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, Guangzhou, 510006, China
- Center for Cardiovascular Research, Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Yue-Huai Hu
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences; National and Local United Engineering Lab of Druggability and New Drugs Evaluation; Guangdong Engineering Laboratory of Druggability and New Drug Evaluation; Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, Guangzhou, 510006, China
| | - Guo-Shuai Feng
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences; National and Local United Engineering Lab of Druggability and New Drugs Evaluation; Guangdong Engineering Laboratory of Druggability and New Drug Evaluation; Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, Guangzhou, 510006, China
- Center for Cardiovascular Research, Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Carla Valenzuela Ripoll
- Center for Cardiovascular Research, Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Zhen-Zhen Li
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences; National and Local United Engineering Lab of Druggability and New Drugs Evaluation; Guangdong Engineering Laboratory of Druggability and New Drug Evaluation; Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, Guangzhou, 510006, China
| | - Si-Dong Cai
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences; National and Local United Engineering Lab of Druggability and New Drugs Evaluation; Guangdong Engineering Laboratory of Druggability and New Drug Evaluation; Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, Guangzhou, 510006, China
| | - Qian-Qian Wang
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences; National and Local United Engineering Lab of Druggability and New Drugs Evaluation; Guangdong Engineering Laboratory of Druggability and New Drug Evaluation; Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, Guangzhou, 510006, China
| | - Wen-Wei Luo
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences; National and Local United Engineering Lab of Druggability and New Drugs Evaluation; Guangdong Engineering Laboratory of Druggability and New Drug Evaluation; Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, Guangzhou, 510006, China
| | - Qian Li
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences; National and Local United Engineering Lab of Druggability and New Drugs Evaluation; Guangdong Engineering Laboratory of Druggability and New Drug Evaluation; Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, Guangzhou, 510006, China
| | - Li-Ying Liang
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences; National and Local United Engineering Lab of Druggability and New Drugs Evaluation; Guangdong Engineering Laboratory of Druggability and New Drug Evaluation; Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, Guangzhou, 510006, China
| | - Zhong-Kai Wu
- Department of Cardiac Surgery, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Ji-Guo Zhang
- School of Pharmaceutical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, 271016, China
| | - Ali Javaheri
- Center for Cardiovascular Research, Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Lei Wang
- School of Pharmaceutical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, 271016, China.
| | - Jing Lu
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences; National and Local United Engineering Lab of Druggability and New Drugs Evaluation; Guangdong Engineering Laboratory of Druggability and New Drug Evaluation; Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, Guangzhou, 510006, China.
| | - Pei-Qing Liu
- School of Pharmaceutical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, 271016, China.
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences; National and Local United Engineering Lab of Druggability and New Drugs Evaluation; Guangdong Engineering Laboratory of Druggability and New Drug Evaluation; Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, Guangzhou, 510006, China.
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9
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Doan PTB, Nio K, Shimakami T, Kuroki K, Li YY, Sugimoto S, Takayama H, Okada H, Kaneko S, Honda M, Yamashita T. Super-Resolution Microscopy Analysis of Hepatitis B Viral cccDNA and Host Factors. Viruses 2023; 15:v15051178. [PMID: 37243264 DOI: 10.3390/v15051178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 05/13/2023] [Accepted: 05/15/2023] [Indexed: 05/28/2023] Open
Abstract
Infection with hepatitis B virus (HBV) cannot be cured completely because of the persistence of covalently closed circular DNA (cccDNA). We previously found that the host gene dedicator of cytokinesis 11 (DOCK11) was required for HBV persistence. In this study, we further investigated the mechanism that links DOCK11 to other host genes in the regulation of cccDNA transcription. cccDNA levels were determined by quantitative real-time polymerase chain reaction (qPCR) and fluorescence in situ hybridization (FISH) in stable HBV-producing cell lines and HBV-infected PXB-cells®. Interactions between DOCK11 and other host genes were identified by super-resolution microscopy, immunoblotting, and chromatin immunoprecipitation. FISH facilitated the subcellular localization of key HBV nucleic acids. Interestingly, although DOCK11 partially colocalized with histone proteins, such as H3K4me3 and H3K27me3, and nonhistone proteins, such as RNA Pol II, it played limited roles in histone modification and RNA transcription. DOCK11 was functionally involved in regulating the subnuclear distribution of host factors and/or cccDNA, resulting in an increase in cccDNA closely located to H3K4me3 and RNA Pol II for activating cccDNA transcription. Thus, it was suggested that the association of cccDNA-bound Pol II and H3K4me3 required the assistance of DOCK11. DOCK11 facilitated the association of cccDNA with H3K4me3 and RNA Pol II.
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Affiliation(s)
- Phuong Thi Bich Doan
- Department of Gastroenterology, Graduate School of Medicine, Kanazawa University, 13-1 Takara-Machi, Kanazawa 920-8641, Japan
| | - Kouki Nio
- Department of Gastroenterology, Graduate School of Medicine, Kanazawa University, 13-1 Takara-Machi, Kanazawa 920-8641, Japan
| | - Tetsuro Shimakami
- Department of Gastroenterology, Graduate School of Medicine, Kanazawa University, 13-1 Takara-Machi, Kanazawa 920-8641, Japan
| | - Kazuyuki Kuroki
- Department of Gastroenterology, Graduate School of Medicine, Kanazawa University, 13-1 Takara-Machi, Kanazawa 920-8641, Japan
| | - Ying-Yi Li
- Department of Gastroenterology, Graduate School of Medicine, Kanazawa University, 13-1 Takara-Machi, Kanazawa 920-8641, Japan
| | - Saiho Sugimoto
- Department of Gastroenterology, Graduate School of Medicine, Kanazawa University, 13-1 Takara-Machi, Kanazawa 920-8641, Japan
| | - Hideo Takayama
- Department of Gastroenterology, Graduate School of Medicine, Kanazawa University, 13-1 Takara-Machi, Kanazawa 920-8641, Japan
| | - Hikari Okada
- Department of Gastroenterology, Graduate School of Medicine, Kanazawa University, 13-1 Takara-Machi, Kanazawa 920-8641, Japan
| | - Shuichi Kaneko
- Department of Gastroenterology, Graduate School of Medicine, Kanazawa University, 13-1 Takara-Machi, Kanazawa 920-8641, Japan
| | - Masao Honda
- Department of Gastroenterology, Graduate School of Medicine, Kanazawa University, 13-1 Takara-Machi, Kanazawa 920-8641, Japan
| | - Taro Yamashita
- Department of Gastroenterology, Graduate School of Medicine, Kanazawa University, 13-1 Takara-Machi, Kanazawa 920-8641, Japan
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10
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Wei D, Tian X, Zhai X, Sun C. Adipose Tissue Macrophage-Mediated Inflammation in Obesity: A Link to Posttranslational Modification. Immunol Invest 2023:1-25. [PMID: 37129471 DOI: 10.1080/08820139.2023.2205883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Adipose tissue macrophages (ATM) are an essential type of immune cells in adipose tissue. Obesity induces the inflammation of adipose tissues, as expressed by ATM accumulation, that is more likely to become a source of systemic metabolic diseases, including insulin resistance. The process is characterized by the transcriptional regulation of inflammatory pathways by virtue of signaling molecules such as cytokines and free fatty acids. Notably, posttranslational modification (PTM) is a key link for these signaling molecules to trigger the proinflammatory or anti-inflammatory phenotype of ATMs. This review focuses on summarizing the functions and molecular mechanisms of ATMs regulating inflammation in obese adipose tissue. Furthermore, the role of PTM is elaborated, hoping to identify new horizons of treatment and prevention for obesity-mediated metabolic disease.
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Affiliation(s)
- Dongqin Wei
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shanxi, China
| | - Xin Tian
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shanxi, China
| | - Xiangyun Zhai
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shanxi, China
| | - Chao Sun
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shanxi, China
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11
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F S, MR R, S T, M JG, S E, A M, D M. Resveratrol improves episodic-like memory and motor coordination through modulating neuroinflammation in old rats. J Funct Foods 2023. [DOI: 10.1016/j.jff.2023.105533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023] Open
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12
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Jeremiah N, Ferran H, Antoniadou K, De Azevedo K, Nikolic J, Maurin M, Benaroch P, Manel N. RELA tunes innate-like interferon I/III responses in human T cells. J Exp Med 2023; 220:e20220666. [PMID: 36820829 PMCID: PMC9998965 DOI: 10.1084/jem.20220666] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 11/11/2022] [Accepted: 01/10/2023] [Indexed: 02/24/2023] Open
Abstract
In innate immune cells, intracellular sensors such as cGAS-STING stimulate type I/III interferon (IFN) expression, which promotes antiviral defense and immune activation. However, how IFN-I/III expression is controlled in adaptive cells is poorly understood. Here, we identify a transcriptional rheostat orchestrated by RELA that confers human T cells with innate-like abilities to produce IFN-I/III. Despite intact cGAS-STING signaling, IFN-I/III responses are stunted in CD4+ T cells compared with dendritic cells or macrophages. We find that lysine residues in RELA tune the IFN-I/III response at baseline and in response to STING stimulation in CD4+ T cells. This response requires positive feedback driven by cGAS and IRF7 expression. By combining RELA with IRF3 and DNA demethylation, IFN-I/III production in CD4+ T cells reaches levels observed in dendritic cells. IFN-I/III production provides self-protection of CD4+ T cells against HIV infection and enhances the elimination of tumor cells by CAR T cells. Therefore, innate-like functions can be tuned and leveraged in human T cells.
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Affiliation(s)
- Nadia Jeremiah
- Institut Curie, Paris Sciences et Lettres Research University, INSERM U932, Paris, France
| | - Hermine Ferran
- Institut Curie, Paris Sciences et Lettres Research University, INSERM U932, Paris, France
| | - Konstantina Antoniadou
- Institut Curie, Paris Sciences et Lettres Research University, INSERM U932, Paris, France
| | - Kevin De Azevedo
- Institut Curie, Paris Sciences et Lettres Research University, INSERM U932, Paris, France
| | - Jovan Nikolic
- Institut Curie, Paris Sciences et Lettres Research University, INSERM U932, Paris, France
| | - Mathieu Maurin
- Institut Curie, Paris Sciences et Lettres Research University, INSERM U932, Paris, France
| | - Philippe Benaroch
- Institut Curie, Paris Sciences et Lettres Research University, INSERM U932, Paris, France
| | - Nicolas Manel
- Institut Curie, Paris Sciences et Lettres Research University, INSERM U932, Paris, France
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13
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Daks A, Shuvalov O, Fedorova O, Parfenyev S, Simon HU, Barlev NA. Methyltransferase Set7/9 as a Multifaceted Regulator of ROS Response. Int J Biol Sci 2023; 19:2304-2318. [PMID: 37215983 PMCID: PMC10197882 DOI: 10.7150/ijbs.83158] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 04/13/2023] [Indexed: 05/24/2023] Open
Abstract
Reactive oxygen species (ROS) induce multiple signaling cascades in the cell and hence play an important role in the regulation of the cell's fate. ROS can cause irreversible damage to DNA and proteins resulting in cell death. Therefore, finely tuned regulatory mechanisms exist in evolutionarily diverse organisms that are aimed at the neutralization of ROS and its consequences with respect to cellular damage. The SET domain-containing lysine methyltransferase Set7/9 (KMT7, SETD7, SET7, SET9) post-translationally modifies several histones and non-histone proteins via monomethylation of the target lysines in a sequence-specific manner. In cellulo, the Set7/9-directed covalent modification of its substrates affects gene expression, cell cycle, energy metabolism, apoptosis, ROS, and DNA damage response. However, the in vivo role of Set7/9 remains enigmatic. In this review, we summarize the currently available information regarding the role of methyltransferase Set7/9 in the regulation of ROS-inducible molecular cascades in response to oxidative stress. We also highlight the in vivo importance of Set7/9 in ROS-related diseases.
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Affiliation(s)
- Alexandra Daks
- Institute of Cytology, Russian Academy of Sciences, 194064, St Petersburg, Russian Federation
| | - Oleg Shuvalov
- Institute of Cytology, Russian Academy of Sciences, 194064, St Petersburg, Russian Federation
| | - Olga Fedorova
- Institute of Cytology, Russian Academy of Sciences, 194064, St Petersburg, Russian Federation
| | - Sergey Parfenyev
- Institute of Cytology, Russian Academy of Sciences, 194064, St Petersburg, Russian Federation
| | - Hans-Uwe Simon
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008, Kazan, Russian Federation
- Institute of Pharmacology, University of Bern, 3010, Bern, Switzerland
| | - Nickolai A. Barlev
- Institute of Cytology, Russian Academy of Sciences, 194064, St Petersburg, Russian Federation
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008, Kazan, Russian Federation
- School of Medicine, Nazarbayev University, 010000, Astana, Kazakhstan
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14
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Sarubbo F, Moranta D, Tejada S, Jiménez M, Esteban S. Impact of Gut Microbiota in Brain Ageing: Polyphenols as Beneficial Modulators. Antioxidants (Basel) 2023; 12:antiox12040812. [PMID: 37107187 PMCID: PMC10134998 DOI: 10.3390/antiox12040812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 03/10/2023] [Accepted: 03/24/2023] [Indexed: 03/29/2023] Open
Abstract
Brain ageing is a complex physiological process that includes several mechanisms. It is characterized by neuronal/glial dysfunction, alterations in brain vasculature and barriers, and the decline in brain repair systems. These disorders are triggered by an increase in oxidative stress and a proinflammatory state, without adequate antioxidant and anti-inflammatory systems, as it occurs in young life stages. This state is known as inflammaging. Gut microbiota and the gut–brain axis (GBA) have been associated with brain function, in a bidirectional communication that can cause loss or gain of the brain’s functionality. There are also intrinsic and extrinsic factors with the ability to modulate this connection. Among the extrinsic factors, the components of diet, principally natural components such as polyphenols, are the most reported. The beneficial effects of polyphenols in brain ageing have been described, mainly due to their antioxidants and anti-inflammatory properties, including the modulation of gut microbiota and the GBA. The aim of this review was, by following the canonical methodology for a state-of-the-art review, to compose the existing evidenced picture of the impact of the gut microbiota on ageing and their modulation by polyphenols as beneficial molecules against brain ageing.
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Affiliation(s)
- Fiorella Sarubbo
- Neurophysiology Lab, Biology Department, Science Faculty, University of the Balearic Islands (UIB), Crta. Valldemossa km 7.5, 07122 Palma, Spain
- Research Unit, Son Llàtzer University Hospital (HUSLL), Crta. Manacor km 4, 07198 Palma, Spain
- Group of Neurophysiology, Behavioral Studies and Biomarkers, Health Research Institute of the Balearic Islands (IdISBa), 07198 Palma, Spain
- Correspondence: ; Tel.: +34-871202022
| | - David Moranta
- Neurophysiology Lab, Biology Department, Science Faculty, University of the Balearic Islands (UIB), Crta. Valldemossa km 7.5, 07122 Palma, Spain
- Group of Neurophysiology, Behavioral Studies and Biomarkers, Health Research Institute of the Balearic Islands (IdISBa), 07198 Palma, Spain
| | - Silvia Tejada
- Neurophysiology Lab, Biology Department, Science Faculty, University of the Balearic Islands (UIB), Crta. Valldemossa km 7.5, 07122 Palma, Spain
- Group of Neurophysiology, Behavioral Studies and Biomarkers, Health Research Institute of the Balearic Islands (IdISBa), 07198 Palma, Spain
- CIBERON (Physiopathology of Obesity and Nutrition), 28029 Madrid, Spain
| | - Manuel Jiménez
- Neurophysiology Lab, Biology Department, Science Faculty, University of the Balearic Islands (UIB), Crta. Valldemossa km 7.5, 07122 Palma, Spain
- Group of Neurophysiology, Behavioral Studies and Biomarkers, Health Research Institute of the Balearic Islands (IdISBa), 07198 Palma, Spain
| | - Susana Esteban
- Neurophysiology Lab, Biology Department, Science Faculty, University of the Balearic Islands (UIB), Crta. Valldemossa km 7.5, 07122 Palma, Spain
- Group of Neurophysiology, Behavioral Studies and Biomarkers, Health Research Institute of the Balearic Islands (IdISBa), 07198 Palma, Spain
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15
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Deng H, Jia S, Tang J, Rong F, Xu C, Chen X, Wang Z, Zhu C, Sun X, Liao Q, Liu W, Li W, Xiao W, Liu X. SET7 methylates the deubiquitinase OTUB1 at Lys 122 to impair its binding to E2 enzyme UBC13 and relieve its suppressive role on ferroptosis. J Biol Chem 2023; 299:103054. [PMID: 36822329 PMCID: PMC10040876 DOI: 10.1016/j.jbc.2023.103054] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 02/11/2023] [Accepted: 02/13/2023] [Indexed: 02/23/2023] Open
Abstract
The deubiquitinating enzyme OTUB1 possesses canonical deubiquitinase (DUB) activity and noncanonical, catalytic-independent activity, which has been identified as an essential regulator of diverse physiological processes. Posttranslational modifications of OTUB1 affect both its DUB activity and its noncanonical activity of binding to the E2 ubiquitin-conjugation enzyme UBC13, but further investigation is needed to characterize the full inventory of modifications to OTUB1. Here, we demonstrate that SET7, a lysine monomethylase, directly interacts with OTUB1 to catalyze OTUB1 methylation at lysine 122. This modification does not affect DUB activity of OTUB1 but impairs its noncanonical activity, binding to UBC13. Moreover, we found using cell viability analysis and intracellular reactive oxygen species assay that SET7-mediated methylation of OTUB1 relieves its suppressive role on ferroptosis. Notably, the methylation-mimic mutant of OTUB1 not only loses the ability to bind to UBC13 but also relieves its suppressive role on Tert-Butyl hydroperoxide-induced cell death and Cystine starvation/Erastin-induced cellular reactive oxygen species. Collectively, our data identify a novel modification of OTUB1 that is critical for inhibiting its noncanonical activity.
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Affiliation(s)
- Hongyan Deng
- College of Life Science, Wuhan University, Wuhan, P. R. China; State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, P. R. China
| | - Shuke Jia
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, P. R. China; University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Jinhua Tang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, P. R. China; University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Fangjing Rong
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, P. R. China; University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Chenxi Xu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, P. R. China; University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Xiaoyun Chen
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, P. R. China; University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Zixuan Wang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, P. R. China; University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Chunchun Zhu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, P. R. China; University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Xueyi Sun
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, P. R. China; University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Qian Liao
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, P. R. China; University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Wen Liu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, P. R. China; University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Wenhua Li
- College of Life Science, Wuhan University, Wuhan, P. R. China.
| | - Wuhan Xiao
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, P. R. China; University of Chinese Academy of Sciences, Beijing, P. R. China; Hubei Hongshan Laboratory, Wuhan, P. R. China; The Innovation of Seed Design, Chinese Academy of Sciences, Wuhan, P. R. China.
| | - Xing Liu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, P. R. China; University of Chinese Academy of Sciences, Beijing, P. R. China; Hubei Hongshan Laboratory, Wuhan, P. R. China.
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16
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Cao L, Wang M, Xu K. [Research Progress of Role and Mechanism of SETD7 in Tumor Occurrence
and Progression]. ZHONGGUO FEI AI ZA ZHI = CHINESE JOURNAL OF LUNG CANCER 2023; 26:38-45. [PMID: 36792079 PMCID: PMC9987127 DOI: 10.3779/j.issn.1009-3419.2023.106.02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
The occurence and development of tumors is a complicated process, which not only depends on the mutation or deletion of genes, but also is affected by epigenetic regulation. Accumulating evidences have shown that epigenetic modifications play fundamental roles in transcriptional regulation, heterochromatin formation, X chromosome inactivation, DNA damage response and tumor development. SET domain containing lysine methyltransferase 7 (SETD7) was initially identified as an important lysine methyltransferase, which methylated histone and non-histone proteins. These modifications play fundamental roles. Once this modification disorders, it can directly lead to cell abnormalities and cause many diseases. Studies have shown that SETD7 is related to the occurence and development of various tumors, but the methylation sites of SETD7 and its regulatory mechanism have not been fully elucidated. This article summarizes the research progress of the role of SETD7 on histone and non-histone methylation modification in tumors and the molecular mechanism, in order to provide new therapeutic targets for tumor pathogenesis and diagnosis.
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Affiliation(s)
- Limin Cao
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute,
Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Min Wang
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute,
Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Ke Xu
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute,
Tianjin Medical University General Hospital, Tianjin 300052, China
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17
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Monteiro FL, Stepanauskaite L, Williams C, Helguero LA. SETD7 Expression Is Associated with Breast Cancer Survival Outcomes for Specific Molecular Subtypes: A Systematic Analysis of Publicly Available Datasets. Cancers (Basel) 2022; 14:cancers14246029. [PMID: 36551516 PMCID: PMC9775934 DOI: 10.3390/cancers14246029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 12/02/2022] [Indexed: 12/13/2022] Open
Abstract
SETD7 is a lysine N-methyltransferase that targets many proteins important in breast cancer (BC). However, its role and clinical significance remain unclear. Here, we used online tools and multiple public datasets to explore the predictive potential of SETD7 expression (high or low quartile) considering BC subtype, grade, stage, and therapy. We also investigated overrepresented biological processes associated with its expression using TCGA-BRCA data. SETD7 expression was highest in the Her2 (ERBB2)-enriched molecular subtype and lowest in the basal-like subtype. For the basal-like subtype specifically, higher SETD7 was consistently correlated with worse recurrence-free survival (p < 0.009). High SETD7-expressing tumours further exhibited a higher rate of ERBB2 mutation (20% vs. 5%) along with a poorer response to anti-Her2 therapy. Overall, high SETD7-expressing tumours showed higher stromal and lower immune scores. This was specifically related to higher counts of cancer-associated fibroblasts and endothelial cells, but lower B and T cell signatures, especially in the luminal A subtype. Genes significantly associated with SETD7 expression were accordingly overrepresented in immune response processes, with distinct subtype characteristics. We conclude that the prognostic value of SETD7 depends on the BC subtype and that SETD7 may be further explored as a potential treatment-predictive marker for immune checkpoint inhibitors.
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Affiliation(s)
- Fátima Liliana Monteiro
- Department of Medical Sciences, Institute of Biomedicine—iBiMED, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Lina Stepanauskaite
- SciLifeLab, Department of Protein Science, KTH Royal Institute of Technology, 114 28 Stockholm, Sweden
- Department of Biosciences and Nutrition, Karolinska Institute, 141 83 Stockholm, Sweden
| | - Cecilia Williams
- SciLifeLab, Department of Protein Science, KTH Royal Institute of Technology, 114 28 Stockholm, Sweden
- Department of Biosciences and Nutrition, Karolinska Institute, 141 83 Stockholm, Sweden
| | - Luisa A. Helguero
- SciLifeLab, Department of Protein Science, KTH Royal Institute of Technology, 114 28 Stockholm, Sweden
- Correspondence:
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18
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The assembly of mammalian SWI/SNF chromatin remodeling complexes is regulated by lysine-methylation dependent proteolysis. Nat Commun 2022; 13:6696. [PMID: 36335117 PMCID: PMC9637158 DOI: 10.1038/s41467-022-34348-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 10/24/2022] [Indexed: 11/08/2022] Open
Abstract
The assembly of mammalian SWI/SNF chromatin remodeling complexes is developmentally programed, and loss/mutations of SWI/SNF subunits alter the levels of other components through proteolysis, causing cancers. Here, we show that mouse Lsd1/Kdm1a deletion causes dramatic dissolution of SWI/SNF complexes and that LSD1 demethylates the methylated lysine residues in SMARCC1 and SMARCC2 to preserve the structural integrity of SWI/SNF complexes. The methylated SMARCC1/SMARCC2 are targeted for proteolysis by L3MBTL3 and the CRL4DCAF5 ubiquitin ligase complex. We identify SMARCC1 as the critical target of LSD1 and L3MBTL3 to maintain the pluripotency and self-renewal of embryonic stem cells. L3MBTL3 also regulates SMARCC1/SMARCC2 proteolysis induced by the loss of SWI/SNF subunits. Consistently, mouse L3mbtl3 deletion causes striking accumulation of SWI/SNF components, associated with embryonic lethality. Our studies reveal that the assembly/disassembly of SWI/SNF complexes is dynamically controlled by a lysine-methylation dependent proteolytic mechanism to maintain the integrity of the SWI/SNF complexes.
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19
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Chiang C, Yang H, Zhu L, Chen C, Chen C, Zuo Y, Zheng D. The Epigenetic Regulation of Nonhistone Proteins by SETD7: New Targets in Cancer. Front Genet 2022; 13:918509. [PMID: 35812730 PMCID: PMC9256981 DOI: 10.3389/fgene.2022.918509] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 05/27/2022] [Indexed: 11/23/2022] Open
Abstract
Epigenetic modifications are essential mechanism by which to ensure cell homeostasis. One such modification is lysine methylation of nonhistone proteins by SETD7, a mono-methyltransferase containing SET domains. SETD7 methylates over 30 proteins and is thus involved in various classical pathways. As such, SETD7 has been implicated in both the basic functions of normal tissues but also in several pathologies, such as cancers. In this review, we summarize the current knowledge of SETD7 substrates, especially transcriptional-related proteins and enzymes, and their putative roles upon SETD7-mediated methylation. We focus on the role of SETD7 in cancers, and speculate on the possible points of intervention and areas for future research.
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Affiliation(s)
- Chengyao Chiang
- Southern University of Science and Technology, Yantian Hospital, Shenzhen, China
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Department of Cell Biology and Genetics, Department of Pharmacy, Shenzhen University International Cancer Center, School of Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People’s Hospital (Shenzhen Institute of Translational Medicine), Shenzhen University, Shenzhen, China
| | - Heng Yang
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Department of Cell Biology and Genetics, Department of Pharmacy, Shenzhen University International Cancer Center, School of Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People’s Hospital (Shenzhen Institute of Translational Medicine), Shenzhen University, Shenzhen, China
| | - Lizhi Zhu
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Department of Cell Biology and Genetics, Department of Pharmacy, Shenzhen University International Cancer Center, School of Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People’s Hospital (Shenzhen Institute of Translational Medicine), Shenzhen University, Shenzhen, China
| | - Chunlan Chen
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Department of Cell Biology and Genetics, Department of Pharmacy, Shenzhen University International Cancer Center, School of Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People’s Hospital (Shenzhen Institute of Translational Medicine), Shenzhen University, Shenzhen, China
| | - Cheng Chen
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Department of Cell Biology and Genetics, Department of Pharmacy, Shenzhen University International Cancer Center, School of Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People’s Hospital (Shenzhen Institute of Translational Medicine), Shenzhen University, Shenzhen, China
| | - You Zuo
- Southern University of Science and Technology, Yantian Hospital, Shenzhen, China
- *Correspondence: You Zuo, ; Duo Zheng,
| | - Duo Zheng
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Department of Cell Biology and Genetics, Department of Pharmacy, Shenzhen University International Cancer Center, School of Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People’s Hospital (Shenzhen Institute of Translational Medicine), Shenzhen University, Shenzhen, China
- *Correspondence: You Zuo, ; Duo Zheng,
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20
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Cao YC, Shan SK, Guo B, Li CC, Li FXZ, Zheng MH, Xu QS, Wang Y, Lei LM, Tang KX, Ou-Yang WL, Duan JY, Wu YY, Ullah MHE, Zhou ZA, Xu F, Lin X, Wu F, Liao XB, Yuan LQ. Histone Lysine Methylation Modification and Its Role in Vascular Calcification. Front Endocrinol (Lausanne) 2022; 13:863708. [PMID: 35784574 PMCID: PMC9243330 DOI: 10.3389/fendo.2022.863708] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 05/06/2022] [Indexed: 01/10/2023] Open
Abstract
Histone methylation is an epigenetic change mediated by histone methyltransferase, and has been connected to the beginning and progression of several diseases. The most common ailments that affect the elderly are cardiovascular and cerebrovascular disorders. They are the leading causes of death, and their incidence is linked to vascular calcification (VC). The key mechanism of VC is the transformation of vascular smooth muscle cells (VSMCs) into osteoblast-like phenotypes, which is a highly adjustable process involving a variety of complex pathophysiological processes, such as metabolic abnormalities, apoptosis, oxidative stress and signalling pathways. Many researchers have investigated the mechanism of VC and related targets for the prevention and treatment of cardiovascular and cerebrovascular diseases. Their findings revealed that histone lysine methylation modification may play a key role in the various stages of VC. As a result, a thorough examination of the role and mechanism of lysine methylation modification in physiological and pathological states is critical, not only for identifying specific molecular markers of VC and new therapeutic targets, but also for directing the development of new related drugs. Finally, we provide this review to discover the association between histone methylation modification and VC, as well as diverse approaches with which to investigate the pathophysiology of VC and prospective treatment possibilities.
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Affiliation(s)
- Ye-Chi Cao
- National Clinical Research Center for Metabolic Diseases, Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Su-Kang Shan
- National Clinical Research Center for Metabolic Diseases, Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Bei Guo
- National Clinical Research Center for Metabolic Diseases, Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Chang-Chun Li
- National Clinical Research Center for Metabolic Diseases, Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Fu-Xing-Zi Li
- National Clinical Research Center for Metabolic Diseases, Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Ming-Hui Zheng
- National Clinical Research Center for Metabolic Diseases, Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Qiu-Shuang Xu
- National Clinical Research Center for Metabolic Diseases, Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Yi Wang
- National Clinical Research Center for Metabolic Diseases, Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Li-Min Lei
- National Clinical Research Center for Metabolic Diseases, Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Ke-Xin Tang
- National Clinical Research Center for Metabolic Diseases, Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Wen-Lu Ou-Yang
- National Clinical Research Center for Metabolic Diseases, Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Jia-Yue Duan
- National Clinical Research Center for Metabolic Diseases, Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Yun-Yun Wu
- National Clinical Research Center for Metabolic Diseases, Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Muhammad Hasnain Ehsan Ullah
- National Clinical Research Center for Metabolic Diseases, Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Zhi-Ang Zhou
- Department of Cardiovascular Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Feng Xu
- National Clinical Research Center for Metabolic Diseases, Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Xiao Lin
- Department of Radiology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Feng Wu
- Department of Pathology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Xiao-Bo Liao
- Department of Cardiovascular Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Ling-Qing Yuan
- National Clinical Research Center for Metabolic Diseases, Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, China
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21
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Mobeen A, Puniya BL, Ramachandran S. A computational approach to investigate constitutive activation of
NF‐κB. Proteins 2022; 90:1944-1964. [DOI: 10.1002/prot.26388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 05/12/2022] [Accepted: 05/23/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Ahmed Mobeen
- CSIR – Institute of Genomics & Integrative Biology, Sukhdev Vihar New Delhi India
- Academy of Scientific & Innovative Research (AcSIR) Ghaziabad Uttar Pradesh India
| | - Bhanwar Lal Puniya
- Department of Biochemistry University of Nebraska‐Lincoln Lincoln Nebraska USA
| | - Srinivasan Ramachandran
- CSIR – Institute of Genomics & Integrative Biology, Sukhdev Vihar New Delhi India
- Academy of Scientific & Innovative Research (AcSIR) Ghaziabad Uttar Pradesh India
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22
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Tang J, Deng H, Wang Z, Zha H, Liao Q, Zhu C, Chen X, Sun X, Jia S, Ouyang G, Liu X, Xiao W. EGLN1 prolyl hydroxylation of hypoxia-induced transcription factor HIF1α is repressed by SET7-catalyzed lysine methylation. J Biol Chem 2022; 298:101961. [PMID: 35452683 PMCID: PMC9123262 DOI: 10.1016/j.jbc.2022.101961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 04/13/2022] [Accepted: 04/15/2022] [Indexed: 11/30/2022] Open
Abstract
Egg laying defective nine 1 (EGLN1) functions as an oxygen sensor to catalyze prolyl hydroxylation of the transcription factor hypoxia-inducible factor-1 α (HIF1α) under normoxia conditions, leading to its proteasomal degradation. Thus, EGLN1 plays a central role in the HIF-mediated hypoxia signaling pathway; however, the post-translational modifications that control EGLN1 function remain largely unknown. Here, we identified that a lysine monomethylase, SET7, catalyzes EGLN1 methylation on lysine 297, resulting in the repression of EGLN1 activity in catalyzing prolyl hydroxylation of HIF1α. Notably, we demonstrate that the methylation mimic mutant of EGLN1 loses the capability to suppress the hypoxia signaling pathway, leading to the enhancement of cell proliferation and the oxygen consumption rate. Collectively, our data identify a novel modification of EGLN1 that is critical for inhibiting its enzymatic activity, and which may benefit cellular adaptation to conditions of hypoxia.
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Affiliation(s)
- Jinhua Tang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences; University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Hongyan Deng
- College of Life Science, Wuhan University, Wuhan, 430072, P. R. China
| | - Zixuan Wang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences; University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Huangyuan Zha
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences
| | - Qian Liao
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences; University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Chunchun Zhu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences; University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xiaoyun Chen
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences; University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xueyi Sun
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences; University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Shuke Jia
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences; University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Gang Ouyang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences; University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xing Liu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences; University of Chinese Academy of Sciences, Beijing, 100049, P. R. China; The Innovation of Seed Design, Chinese Academy of Sciences, Wuhan, 430072, P. R. China.
| | - Wuhan Xiao
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences; University of Chinese Academy of Sciences, Beijing, 100049, P. R. China; The Innovation of Seed Design, Chinese Academy of Sciences, Wuhan, 430072, P. R. China; Hubei Hongshan Laboratory, Wuhan, 430070, P. R. China.
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23
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Keating ST, El-Osta A. Metaboloepigenetics in cancer, immunity and cardiovascular disease. Cardiovasc Res 2022; 119:357-370. [PMID: 35389425 PMCID: PMC10064843 DOI: 10.1093/cvr/cvac058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 01/12/2022] [Accepted: 02/02/2022] [Indexed: 11/14/2022] Open
Abstract
The influence of cellular metabolism on epigenetic pathways are well documented but misunderstood. Scientists have long known of the metabolic impact on epigenetic determinants. More often than not, that title role for DNA methylation was portrayed by the metabolite SAM or S-adenosylmethionine. Technically speaking there are many other metabolites that drive epigenetic processes that instruct seemingly distant - yet highly connect pathways - and none more so than our understanding of the cancer epigenome. Recent studies have shown that available energy link the extracellular environment to influence cellular responses. This focused review examines the recent interest in epigenomics and casts cancer, metabolism and immunity in unfamiliar roles - cooperating. There are not only language lessons from cancer research, we have come round to appreciate that reaching into areas previously thought of as too distinct are also object lessons in understanding health and disease. The Warburg effect is one such signature of how glycolysis influences metabolic shift during oncogenesis. That shift in metabolism - now recognised as central to proliferation in cancer biology - influence core enzymes that not only control gene expression but are also central to replication, condensation and the repair of nucleic acid. These nuclear processes rely on metabolism and with glucose at center stage the role of respiration and oxidative metabolism are now synonymous with the mitochondria as the powerhouses of metaboloepigenetics. The emerging evidence for metaboloepigenetics in trained innate immunity has revealed recognisable signalling pathways with antecedent extracellular stimulation. With due consideration to immunometabolism we discuss the striking signalling similarities influencing these core pathways. The immunometabolic-epigenetic axis in cardiovascular disease has deeply etched connections with inflammation and we examine the chromatin template as a carrier of epigenetic indices that determine the expression of genes influencing atherosclerosis and vascular complications of diabetes.
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Affiliation(s)
- Samuel T Keating
- Department of Biology, University of Copenhagen, Copenhagen DK-2200, Denmark
| | - Assam El-Osta
- Department of Diabetes, Central Clinical School, Monash University, Melbourne, Victoria 3004, Australia.,Epigenetics in Human Health and Disease Laboratory, Central Clinical School, Monash University, Melbourne, Victoria 3004, Australia.,Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR.,Hong Kong Institute of Diabetes and Obesity, Prince of Wales Hospital, The Chinese University of Hong Kong, 3/F Lui Che Woo Clinical Sciences Building, 30-32 Ngan Shing Street, Sha Tin, Hong Kong SAR.,Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR.,University College Copenhagen, Faculty of Health, Department of Technology, Biomedical Laboratory Science, Copenhagen, Denmark
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24
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Florio TJ, Lokareddy RK, Yeggoni DP, Sankhala RS, Ott CA, Gillilan RE, Cingolani G. Differential recognition of canonical NF-κB dimers by Importin α3. Nat Commun 2022; 13:1207. [PMID: 35260573 PMCID: PMC8904830 DOI: 10.1038/s41467-022-28846-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 02/11/2022] [Indexed: 11/09/2022] Open
Abstract
Nuclear translocation of the p50/p65 heterodimer is essential for NF-κB signaling. In unstimulated cells, p50/p65 is retained by the inhibitor IκBα in the cytoplasm that masks the p65-nuclear localization sequence (NLS). Upon activation, p50/p65 is translocated into the nucleus by the adapter importin α3 and the receptor importin β. Here, we describe a bipartite NLS in p50/p65, analogous to nucleoplasmin NLS but exposed in trans. Importin α3 accommodates the p50- and p65-NLSs at the major and minor NLS-binding pockets, respectively. The p50-NLS is the predominant binding determinant, while the p65-NLS induces a conformational change in the Armadillo 7 of importin α3 that stabilizes a helical conformation of the p65-NLS. Neither conformational change was observed for importin α1, which makes fewer bonds with the p50/p65 NLSs, explaining the preference for α3. We propose that importin α3 discriminates between the transcriptionally active p50/p65 heterodimer and p50/p50 and p65/65 homodimers, ensuring fidelity in NF-κB signaling. Nuclear translocation of the p50/p65 heterodimer is essential for NF-κB signaling. Here, the authors identify a bipartite Nuclear Localization Signal in the NF-κB p50/p65 heterodimer that is recognized with high affinity by importin α3.
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Affiliation(s)
- Tyler J Florio
- Department of Biochemistry and Molecular Biology, Thomas Jefferson University, 1020 Locust Street, Philadelphia, PA, 19107, USA
| | - Ravi K Lokareddy
- Department of Biochemistry and Molecular Biology, Thomas Jefferson University, 1020 Locust Street, Philadelphia, PA, 19107, USA
| | - Daniel P Yeggoni
- Department of Biochemistry and Molecular Biology, Thomas Jefferson University, 1020 Locust Street, Philadelphia, PA, 19107, USA
| | - Rajeshwer S Sankhala
- Center of Infectious Disease Research, Walter Reed Army Institute of Research, Silver Spring, MD, USA
| | - Connor A Ott
- Department of Biochemistry and Molecular Biology, Thomas Jefferson University, 1020 Locust Street, Philadelphia, PA, 19107, USA
| | - Richard E Gillilan
- Macromolecular Diffraction Facility, Cornell High Energy Synchrotron Source (MacCHESS), Cornell University, 161 Synchrotron Drive, Ithaca, NY, 14853, USA
| | - Gino Cingolani
- Department of Biochemistry and Molecular Biology, Thomas Jefferson University, 1020 Locust Street, Philadelphia, PA, 19107, USA.
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25
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Daks A, Vasileva E, Fedorova O, Shuvalov O, Barlev NA. The Role of Lysine Methyltransferase SET7/9 in Proliferation and Cell Stress Response. Life (Basel) 2022; 12:life12030362. [PMID: 35330113 PMCID: PMC8949485 DOI: 10.3390/life12030362] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 02/25/2022] [Accepted: 02/26/2022] [Indexed: 12/14/2022] Open
Abstract
Lysine-specific methyltransferase 7 (KMT7) SET7/9, aka Set7, Set9, or SetD7, or KMT5 was discovered 20 years ago, yet its biological role remains rather enigmatic. In this review, we analyze the particularities of SET7/9 enzymatic activity and substrate specificity with respect to its biological importance, mostly focusing on its two well-characterized biological functions: cellular proliferation and stress response.
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Affiliation(s)
- Alexandra Daks
- Institute of Cytology RAS, 194064 St. Petersburg, Russia; (A.D.); (E.V.); (O.F.); (O.S.)
| | - Elena Vasileva
- Institute of Cytology RAS, 194064 St. Petersburg, Russia; (A.D.); (E.V.); (O.F.); (O.S.)
- Children’s Hospital Los Angeles, University of Southern California, Los Angeles, CA 90027, USA
| | - Olga Fedorova
- Institute of Cytology RAS, 194064 St. Petersburg, Russia; (A.D.); (E.V.); (O.F.); (O.S.)
| | - Oleg Shuvalov
- Institute of Cytology RAS, 194064 St. Petersburg, Russia; (A.D.); (E.V.); (O.F.); (O.S.)
| | - Nickolai A. Barlev
- Institute of Cytology RAS, 194064 St. Petersburg, Russia; (A.D.); (E.V.); (O.F.); (O.S.)
- Correspondence:
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26
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Malbeteau L, Pham HT, Eve L, Stallcup MR, Poulard C, Le Romancer M. How Protein Methylation Regulates Steroid Receptor Function. Endocr Rev 2022; 43:160-197. [PMID: 33955470 PMCID: PMC8755998 DOI: 10.1210/endrev/bnab014] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Indexed: 02/06/2023]
Abstract
Steroid receptors (SRs) are members of the nuclear hormonal receptor family, many of which are transcription factors regulated by ligand binding. SRs regulate various human physiological functions essential for maintenance of vital biological pathways, including development, reproduction, and metabolic homeostasis. In addition, aberrant expression of SRs or dysregulation of their signaling has been observed in a wide variety of pathologies. SR activity is tightly and finely controlled by post-translational modifications (PTMs) targeting the receptors and/or their coregulators. Whereas major attention has been focused on phosphorylation, growing evidence shows that methylation is also an important regulator of SRs. Interestingly, the protein methyltransferases depositing methyl marks are involved in many functions, from development to adult life. They have also been associated with pathologies such as inflammation, as well as cardiovascular and neuronal disorders, and cancer. This article provides an overview of SR methylation/demethylation events, along with their functional effects and biological consequences. An in-depth understanding of the landscape of these methylation events could provide new information on SR regulation in physiology, as well as promising perspectives for the development of new therapeutic strategies, illustrated by the specific inhibitors of protein methyltransferases that are currently available.
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Affiliation(s)
- Lucie Malbeteau
- Université de Lyon, F-69000 Lyon, France.,Inserm U1052, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France.,CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France
| | - Ha Thuy Pham
- Université de Lyon, F-69000 Lyon, France.,Inserm U1052, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France.,CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France
| | - Louisane Eve
- Université de Lyon, F-69000 Lyon, France.,Inserm U1052, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France.,CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France
| | - Michael R Stallcup
- Department of Biochemistry and Molecular Medicine, Norris Comprehensive Center, University of Southern California, Los Angeles, CA 90089, USA
| | - Coralie Poulard
- Université de Lyon, F-69000 Lyon, France.,Inserm U1052, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France.,CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France
| | - Muriel Le Romancer
- Université de Lyon, F-69000 Lyon, France.,Inserm U1052, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France.,CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France
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27
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Abstract
Protein degradation is a fundamental feature of cellular life, and malfunction of this process is implicated in human disease. Ubiquitin tagging is the best characterized mechanism of targeting a protein for degradation; however, there are a growing number of distinct mechanisms which have also been identified that carry out this essential function. For example, covalent tagging of proteins with sequestosome-1 targets them for selective autophagy. Degradation signals are not exclusively polypeptides such as ubiquitin, NEDD8, and sequestosome-1. Phosphorylation, acetylation, and methylation are small covalent additions that can also direct protein degradation. The diversity of substrate sequences and overlap with other pleotrophic functions for these smaller signaling moieties has made their characterization more challenging. However, these small signals might be responsible for orchestrating a large portion of the protein degradation activity in the cell. As such, there has been increasing interest in lysine methylation and associated lysine methyltransferases (KMTs), beyond canonical histone protein modification, in mediating protein degradation in a variety of contexts. This review focuses on the current evidence for lysine methylation as a protein degradation signal with a detailed discussion of the class of enzymes responsible for this phenomenon.
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28
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Gao L, Yu W, Song P, Li Q. Non-histone methylation of SET7/9 and its biological functions. Recent Pat Anticancer Drug Discov 2021; 17:231-243. [PMID: 34856916 DOI: 10.2174/1574892816666211202160041] [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: 09/02/2021] [Revised: 10/01/2021] [Accepted: 10/02/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND (su(var)-3-9,enhancer-of-zeste,trithorax) domain-containing protein 7/9 (SET7/9) is a member of the protein lysine methyltransferases (PLMTs or PKMTs) family. It contains a SET domain. Recent studies demonstrate that SET7/9 methylates both lysine 4 of histone 3 (H3-K4) and lysine(s) of non-histone proteins, including transcription factors, tumor suppressors, and membrane-associated receptors. OBJECTIVE This article mainly reviews the non-histone methylation effects of SET7/9 and its functions in tumorigenesis and development. METHODS PubMed was screened for this information. RESULTS SET7/9 plays a key regulatory role in various biological processes such as cell proliferation, transcription regulation, cell cycle, protein stability, cardiac morphogenesis, and development. In addition, SET7/9 is involved in the pathogenesis of hair loss, breast cancer progression, human carotid plaque atherosclerosis, chronic kidney disease, diabetes, obesity, ovarian cancer, prostate cancer, hepatocellular carcinoma, and pulmonary fibrosis. CONCLUSION SET7/9 is an important methyltransferase, which can catalyze the methylation of a variety of proteins. Its substrates are closely related to the occurrence and development of tumors.
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Affiliation(s)
- Lili Gao
- Department of Pathology, Pudong New Area People's Hospital, Shanghai 201299. China
| | - Weiping Yu
- Department of Pathophysiology, Medical school of Southeast University, Nanjing 210009, Jiangsu. China
| | - Peng Song
- Department of Pathology, Pudong New Area People's Hospital, Shanghai 201299. China
| | - Qing Li
- Department of Pathology, Pudong New Area People's Hospital, Shanghai 201299. China
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29
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Silke J, O’Reilly LA. NF-κB and Pancreatic Cancer; Chapter and Verse. Cancers (Basel) 2021; 13:4510. [PMID: 34572737 PMCID: PMC8469693 DOI: 10.3390/cancers13184510] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 08/29/2021] [Accepted: 08/30/2021] [Indexed: 02/07/2023] Open
Abstract
Pancreatic Ductal Adenocarcinoma (PDAC) is one of the world's most lethal cancers. An increase in occurrence, coupled with, presently limited treatment options, necessitates the pursuit of new therapeutic approaches. Many human cancers, including PDAC are initiated by unresolved inflammation. The transcription factor NF-κB coordinates many signals that drive cellular activation and proliferation during immunity but also those involved in inflammation and autophagy which may instigate tumorigenesis. It is not surprising therefore, that activation of canonical and non-canonical NF-κB pathways is increasingly recognized as an important driver of pancreatic injury, progression to tumorigenesis and drug resistance. Paradoxically, NF-κB dysregulation has also been shown to inhibit pancreatic inflammation and pancreatic cancer, depending on the context. A pro-oncogenic or pro-suppressive role for individual components of the NF-κB pathway appears to be cell type, microenvironment and even stage dependent. This review provides an outline of NF-κB signaling, focusing on the role of the various NF-κB family members in the evolving inflammatory PDAC microenvironment. Finally, we discuss pharmacological control of NF-κB to curb inflammation, focussing on novel anti-cancer agents which reinstate the process of cancer cell death, the Smac mimetics and their pre-clinical and early clinical trials.
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Affiliation(s)
- John Silke
- Inflammation Division, Walter and Eliza Hall Institute of Medical Research (WEHI), Parkville, VIC 3052, Australia;
- Department of Medical Biology, University of Melbourne, Parkville, VIC 3010, Australia
| | - Lorraine Ann O’Reilly
- Inflammation Division, Walter and Eliza Hall Institute of Medical Research (WEHI), Parkville, VIC 3052, Australia;
- Department of Medical Biology, University of Melbourne, Parkville, VIC 3010, Australia
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30
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Measuring NF-κB Phosphorylation and Acetylation. Methods Mol Biol 2021. [PMID: 34236629 DOI: 10.1007/978-1-0716-1669-7_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/16/2023]
Abstract
Posttranslational modifications of NF-κB, including phosphorylation, acetylation, and methylation, have emerged as important regulatory mechanisms to control the transcriptional outcomes of this important transcription factor. These modifications work independently, sequentially or in combination to modulate the diverse biological functions of NF-κB in cancer and inflammatory response. Here, we describe some experimental methods to detect the in vitro and in vivo phosphorylation and acetylation of NF-κB, specifically focusing on the RelA subunit of NF-κB. These methods include labeling the phospho- or acetyl- groups with radioisotopes in vitro and immunoblotting with site-specific anti-phospho-serine or acetyl-lysine antibodies in culture cells and tissue samples.
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31
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Modulation of Bovine Endometrial Cell Receptors and Signaling Pathways as a Nanotherapeutic Exploration against Dairy Cow Postpartum Endometritis. Animals (Basel) 2021; 11:ani11061516. [PMID: 34071093 PMCID: PMC8224678 DOI: 10.3390/ani11061516] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 05/19/2021] [Accepted: 05/20/2021] [Indexed: 12/16/2022] Open
Abstract
Simple Summary The provision of updated information on the molecular pathogenesis of bovine endometritis with host-pathogen interactions and the possibility of exploring the cellular sensors mechanism in a nanotechnology-based drug delivery system against persistent endometritis were reported in this review. The mechanism of Gram-negative bacteria and their ligands has been vividly explored, with the paucity of research detail on Gram-positive bacteria in bovine endometritis. The function of cell receptors, biomolecules proteins, and sensors were reportedly essential in transferring signals into cell signaling pathways to induce immuno-inflammatory responses by elevating pro-inflammatory cytokines. Therefore, understanding endometrial cellular components and signaling mechanisms across pathogenesis are essential for nanotherapeutic exploration against bovine endometritis. The nanotherapeutic discovery that could inhibit infectious signals at the various cell receptors and signal transduction levels, interfering with transcription factors activation and pro-inflammatory cytokines and gene expression, significantly halts endometritis. Abstract In order to control and prevent bovine endometritis, there is a need to understand the molecular pathogenesis of the infectious disease. Bovine endometrium is usually invaded by a massive mobilization of microorganisms, especially bacteria, during postpartum dairy cows. Several reports have implicated the Gram-negative bacteria in the pathogenesis of bovine endometritis, with information dearth on the potentials of Gram-positive bacteria and their endotoxins. The invasive bacteria and their ligands pass through cellular receptors such as TLRs, NLRs, and biomolecular proteins of cells activate the specific receptors, which spontaneously stimulates cellular signaling pathways like MAPK, NF-kB and sequentially triggers upregulation of pro-inflammatory cytokines. The cascade of inflammatory induction involves a dual signaling pathway; the transcription factor NF-κB is released from its inhibitory molecule and can bind to various inflammatory genes promoter. The MAPK pathways are concomitantly activated, leading to specific phosphorylation of the NF-κB. The provision of detailed information on the molecular pathomechanism of bovine endometritis with the interaction between host endometrial cells and invasive bacteria in this review would widen the gap of exploring the potential of receptors and signal transduction pathways in nanotechnology-based drug delivery system. The nanotherapeutic discovery of endometrial cell receptors, signal transduction pathway, and cell biomolecules inhibitors could be developed for strategic inhibition of infectious signals at the various cell receptors and signal transduction levels, interfering on transcription factors activation and pro-inflammatory cytokines and genes expression, which may significantly protect endometrium against postpartum microbial invasion.
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Liu B, Nie J, Liang H, Liang Z, Huang J, Yu W, Wen S. Pharmacological inhibition of SETD7 by PFI-2 attenuates renal fibrosis following folic acid and obstruction injury. Eur J Pharmacol 2021; 901:174097. [PMID: 33848540 DOI: 10.1016/j.ejphar.2021.174097] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 04/01/2021] [Accepted: 04/07/2021] [Indexed: 01/19/2023]
Abstract
Renal fibrosis is the common pathological hallmark of chronic kidney disease, and SET domain containing lysine methyltransferase 7 (SETD7) promote considerably renal fibrosis. However, the signaling mechanisms underlying SETD7 driving renal fibrosis are not fully understood. Here, we investigated the role of SETD7 in M2 macrophages-myofibroblasts transition and the myeloid fibroblasts activation in folic acid and obstruction-induced renal fibrosis. Mice treated with PFI-2, an inhibitor of SETD7, presented less bone marrow-derived myofibroblasts, fewer CD206+/α-smooth muscle actin + cells and developed less renal fibrosis (P<0.01). Furthermore, SETD7 inhibition reduced the infiltration of inflammatory cells and decreased the production of pro-inflammatory cytokines and chemokines in the kidneys after folic acid treatment (P<0.01). Finally, SETD7 inhibition suppressed the accumulation of NF-κB p65+ cells in folic acid nephropathy (P<0.01). Taken together, SETD7 mediates M2 macrophages-myofibroblasts transition, bone marrow-derived myofibroblasts activation, and inflammation response in the development of renal fibrosis.
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Affiliation(s)
- Benquan Liu
- Department of Anesthesiology, The First People's Hospital of Foshan, Foshan, 528000, China
| | - Jiayi Nie
- Department of Anesthesiology, The First People's Hospital of Foshan, Foshan, 528000, China
| | - Hua Liang
- Department of Anesthesiology, The First People's Hospital of Foshan, Foshan, 528000, China; Translational Medicine Institute of Anesthesiology and Perioperative Medicine, The First People's Hospital of Foshan, Foshan, 528000, China.
| | - Zijie Liang
- Department of Nephrology, The First People's Hospital of Foshan, Foshan, 528000, China
| | - Jiangju Huang
- Department of Anesthesiology, The First People's Hospital of Foshan, Foshan, 528000, China
| | - Wenqiang Yu
- Department of Anesthesiology, The First People's Hospital of Foshan, Foshan, 528000, China
| | - Shihong Wen
- Department of Anesthesiology, The First Affiliated Hospital of SUN YAT-SEN University, Guangzhou, 510080, China
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Lukinović V, Casanova AG, Roth GS, Chuffart F, Reynoird N. Lysine Methyltransferases Signaling: Histones are Just the Tip of the Iceberg. Curr Protein Pept Sci 2021; 21:655-674. [PMID: 31894745 DOI: 10.2174/1871527319666200102101608] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 11/15/2019] [Accepted: 11/27/2019] [Indexed: 12/28/2022]
Abstract
Protein lysine methylation is a functionally diverse post-translational modification involved in various major cellular processes. Lysine methylation can modulate proteins activity, stability, localization, and/or interaction, resulting in specific downstream signaling and biological outcomes. Lysine methylation is a dynamic and fine-tuned process, deregulation of which often leads to human pathologies. In particular, the lysine methylome and its associated signaling network can be linked to carcinogenesis and cancer progression. Histone modifications and chromatin regulation is a major aspect of lysine methylation importance, but increasing evidence suggests that a high relevance and impact of non-histone lysine methylation signaling has emerged in recent years. In this review, we draw an updated picture of the current scientific knowledge regarding non-histone lysine methylation signaling and its implication in physiological and pathological processes. We aim to demonstrate the significance of lysine methylation as a major and yet underestimated posttranslational modification, and to raise the importance of this modification in both epigenetic and cellular signaling by focusing on the observed activities of SET- and 7β-strandcontaining human lysine methyltransferases. Recent evidence suggests that what has been observed so far regarding lysine methylation's implication in human pathologies is only the tip of the iceberg. Therefore, the exploration of the "methylome network" raises the possibility to use these enzymes and their substrates as promising new therapeutic targets for the development of future epigenetic and methyllysine signaling cancer treatments.
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Affiliation(s)
- Valentina Lukinović
- Institute for Advanced Biosciences, INSERM U1209 - CNRS UMR5309 - Universite Grenoble Alpes, Grenoble Cedex, France
| | - Alexandre G Casanova
- Institute for Advanced Biosciences, INSERM U1209 - CNRS UMR5309 - Universite Grenoble Alpes, Grenoble Cedex, France
| | - Gael S Roth
- Institute for Advanced Biosciences, INSERM U1209 - CNRS UMR5309 - Universite Grenoble Alpes, Grenoble Cedex, France
| | - Florent Chuffart
- Institute for Advanced Biosciences, INSERM U1209 - CNRS UMR5309 - Universite Grenoble Alpes, Grenoble Cedex, France
| | - Nicolas Reynoird
- Institute for Advanced Biosciences, INSERM U1209 - CNRS UMR5309 - Universite Grenoble Alpes, Grenoble Cedex, France
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Zarate MA, Nguyen LM, De Dios RK, Zheng L, Wright CJ. Maturation of the Acute Hepatic TLR4/NF-κB Mediated Innate Immune Response Is p65 Dependent in Mice. Front Immunol 2020; 11:1892. [PMID: 32973783 PMCID: PMC7472845 DOI: 10.3389/fimmu.2020.01892] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 07/14/2020] [Indexed: 12/27/2022] Open
Abstract
Compared to adults, neonates are at increased risk of infection. There is a growing recognition that dynamic qualitative and quantitative differences in immunity over development contribute to these observations. The liver plays a key role as an immunologic organ, but whether its contribution to the acute innate immune response changes over lifetime is unknown. We hypothesized that the liver would activate a developmentally-regulated acute innate immune response to intraperitoneal lipopolysaccharide (LPS). We first assessed the hepatic expression and activity of the NF-κB, a key regulator of the innate immune response, at different developmental ages (p0, p3, p7, p35, and adult). Ontogeny of the NF-κB subunits (p65/p50) revealed a reduction in Rela (p65) and Nfkb1 (p105, precursor to p50) gene expression (p0) and p65 subunit protein levels (p0 and p3) vs. older ages. The acute hepatic innate immune response to LPS was associated by the degradation of the NF-κB inhibitory proteins (IκBα and IκBβ), and nuclear translocation of the NF-κB subunit p50 in all ages, whereas nuclear translocation of the NF-κB subunit p65 was only observed in the p35 and adult mouse. Consistent with these findings, we detected NF-κB subunit p65 nuclear staining exclusively in the LPS-exposed adult liver compared with p7 mouse. We next interrogated the LPS-induced hepatic expression of pro-inflammatory genes (Tnf, Icam1, Ccl3, and Traf1), and observed a gradually increase in gene expression starting from p0. Confirming our results, hepatic NF-κB subunit p65 nuclear translocation was associated with up-regulation of the Icam1 gene in the adult, and was not detected in the p7 mouse. Thus, an inflammatory challenge induces an NF-κB-mediated hepatic innate immune response activation across all developmental ages, but nuclear translocation of the NF-κB subunit p65 and associated induction of pro-inflammatory genes occurred only after the first month of life. Our results demonstrate that the LPS-induced hepatic innate immune response is developmentally regulated by the NF-κB subunit p65 in the mouse.
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Affiliation(s)
- Miguel A Zarate
- Section of Neonatology, Department of Pediatrics, Children's Hospital Colorado, University of Colorado School of Medicine, Aurora, CO, United States
| | - Leanna M Nguyen
- Section of Neonatology, Department of Pediatrics, Children's Hospital Colorado, University of Colorado School of Medicine, Aurora, CO, United States
| | - Robyn K De Dios
- Section of Neonatology, Department of Pediatrics, Children's Hospital Colorado, University of Colorado School of Medicine, Aurora, CO, United States
| | - Lijun Zheng
- Section of Neonatology, Department of Pediatrics, Children's Hospital Colorado, University of Colorado School of Medicine, Aurora, CO, United States
| | - Clyde J Wright
- Section of Neonatology, Department of Pediatrics, Children's Hospital Colorado, University of Colorado School of Medicine, Aurora, CO, United States
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Janna A, Davarinejad H, Joshi M, Couture JF. Structural Paradigms in the Recognition of the Nucleosome Core Particle by Histone Lysine Methyltransferases. Front Cell Dev Biol 2020; 8:600. [PMID: 32850785 PMCID: PMC7412744 DOI: 10.3389/fcell.2020.00600] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 06/19/2020] [Indexed: 12/18/2022] Open
Abstract
Post-translational modifications (PTMs) of histone proteins play essential functions in shaping chromatin environment. Alone or in combination, these PTMs create templates recognized by dedicated proteins or change the chemistry of chromatin, enabling a myriad of nuclear processes to occur. Referred to as cross-talk, the positive or negative impact of a PTM on another PTM has rapidly emerged as a mechanism controlling nuclear transactions. One of those includes the stimulatory functions of histone H2B ubiquitylation on the methylation of histone H3 on K79 and K4 by Dot1L and COMPASS, respectively. While these findings were established early on, the structural determinants underlying the positive impact of H2B ubiquitylation on H3K79 and H3K4 methylation were resolved only recently. We will also review the molecular features controlling these cross-talks and the impact of H3K27 tri-methylation on EZH2 activity when embedded in the PRC2 complex.
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Affiliation(s)
- Ashley Janna
- Ottawa Institute of Systems Biology, Shanghai Institute of Materia Medica-University of Ottawa Research Center in Systems and Personalized Pharmacology, Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada
| | - Hossein Davarinejad
- Ottawa Institute of Systems Biology, Shanghai Institute of Materia Medica-University of Ottawa Research Center in Systems and Personalized Pharmacology, Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada
| | - Monika Joshi
- Ottawa Institute of Systems Biology, Shanghai Institute of Materia Medica-University of Ottawa Research Center in Systems and Personalized Pharmacology, Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada
| | - Jean-Francois Couture
- Ottawa Institute of Systems Biology, Shanghai Institute of Materia Medica-University of Ottawa Research Center in Systems and Personalized Pharmacology, Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada
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Mossel DM, Moganti K, Riabov V, Weiss C, Kopf S, Cordero J, Dobreva G, Rots MG, Klüter H, Harmsen MC, Kzhyshkowska J. Epigenetic Regulation of S100A9 and S100A12 Expression in Monocyte-Macrophage System in Hyperglycemic Conditions. Front Immunol 2020; 11:1071. [PMID: 32582175 PMCID: PMC7280556 DOI: 10.3389/fimmu.2020.01071] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 05/04/2020] [Indexed: 12/13/2022] Open
Abstract
The number of diabetic patients in Europe and world-wide is growing. Diabetes confers a 2-fold higher risk for vascular disease. Lack of insulin production (Type 1 diabetes, T1D) or lack of insulin responsiveness (Type 2 diabetes, T2D) causes systemic metabolic changes such as hyperglycemia (HG) which contribute to the pathology of diabetes. Monocytes and macrophages are key innate immune cells that control inflammatory reactions associated with diabetic vascular complications. Inflammatory programming of macrophages is regulated and maintained by epigenetic mechanisms, in particular histone modifications. The aim of our study was to identify the epigenetic mechanisms involved in the hyperglycemia-mediated macrophage activation. Using Affymetrix microarray profiling and RT-qPCR we identified that hyperglycemia increased the expression of S100A9 and S100A12 in primary human macrophages. Expression of S100A12 was sustained after glucose levels were normalized. Glucose augmented the response of macrophages to Toll-like receptor (TLR)-ligands Palmatic acid (PA) and Lipopolysaccharide (LPS) i.e., pro-inflammatory stimulation. The abundance of activating histone Histone 3 Lysine 4 methylation marks (H3K4me1, H3K4me3) and general acetylation on histone 3 (AceH3) with the promoters of these genes was analyzed by chromatin immunoprecipitation. Hyperglycemia increased acetylation of histones bound to the promoters of S100A9 and S100A12 in M1 macrophages. In contrast, hyperglycemia caused a reduction in total H3 which correlated with the increased expression of both S100 genes. The inhibition of histone methyltransferases SET domain-containing protein (SET)7/9 and SET and MYND domain-containing protein (SMYD)3 showed that these specifically regulated S100A12 expression. We conclude that hyperglycemia upregulates expression of S100A9, S100A12 via epigenetic regulation and induces an activating histone code on the respective gene promoters in M1 macrophages. Mechanistically, this regulation relies on action of histone methyltransferases SMYD3 and SET7/9. The results define an important role for epigenetic regulation in macrophage mediated inflammation in diabetic conditions.
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Affiliation(s)
- Dieuwertje M Mossel
- Medical Faculty Mannheim, Institute of Transfusion Medicine and Immunology, Heidelberg University, Mannheim, Germany
| | - Kondaiah Moganti
- Medical Faculty Mannheim, Institute of Transfusion Medicine and Immunology, Heidelberg University, Mannheim, Germany.,Department of Dermatology, University of Münster, Münster, Germany
| | - Vladimir Riabov
- Medical Faculty Mannheim, Institute of Transfusion Medicine and Immunology, Heidelberg University, Mannheim, Germany
| | - Christel Weiss
- Department of Medical Statistics, Biomathematics and Information Processing, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Stefan Kopf
- Department of Medicine I: Endocrinology and Clinical Chemistry, University Hospital Heidelberg, Heidelberg, Germany
| | - Julio Cordero
- Anatomy and Developmental Biology, CBTM, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Gergana Dobreva
- Anatomy and Developmental Biology, CBTM, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Marianne G Rots
- Department Pathology and Medical Biology, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
| | - Harald Klüter
- Medical Faculty Mannheim, Institute of Transfusion Medicine and Immunology, Heidelberg University, Mannheim, Germany.,German Red Cross Blood Service Baden-Württemberg - Hessen, Mannheim, Germany
| | - Martin C Harmsen
- Department Pathology and Medical Biology, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
| | - Julia Kzhyshkowska
- Medical Faculty Mannheim, Institute of Transfusion Medicine and Immunology, Heidelberg University, Mannheim, Germany.,German Red Cross Blood Service Baden-Württemberg - Hessen, Mannheim, Germany
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Hou Z, Min W, Zhang R, Niu A, Li Y, Cao L, Han J, Luo C, Yang P, Ding H. Lead discovery, chemical optimization, and biological evaluation studies of novel histone methyltransferase SET7 small-molecule inhibitors. Bioorg Med Chem Lett 2020; 30:127061. [PMID: 32173197 DOI: 10.1016/j.bmcl.2020.127061] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 02/14/2020] [Accepted: 02/22/2020] [Indexed: 10/24/2022]
Abstract
The post-translational modifications of histones, including histone methylation and demethylation, control the expression switch of multiple genes. SET domain-containing lysine methyltransferase 7 (SET7) is the only methyltransferase, which can specifically monomethylate lysine-4 of histone H3 (H3K4me1) and play critical roles in various diseases, including breast cancer, hepatitis C virus (HCV), atherosclerotic vascular disease, diabetes, prostate cancer, hepatocellular carcinoma, and obesity. However, several known SET7 inhibitors exhibit weak activity or poor selectivity. Therefore, the development of novel SET7 inhibitors is highly desirable and of great clinical value. In this study, we identified 2-79 as a new hit compound by structure-based virtual screening and further AlphaLISA-based biochemical evaluation. Via chemical optimization, the synthesized compound DC21 was confirmed as a potent SET7 inhibitor with an IC50 value of 15.93 μM. The interaction between DC21 and SET7 was also validated through SPR experiment. Especially, DC21 retarded proliferation of MCF7 cells with an IC50 value of 25.84 μM in cellular level. In addition, DC21 has good selectivity for several other epigenetic targets, such as SUV39H1, G9a, NSD1, DOT1L and MOF. DC21 can serve as a lead compound to develop more potential SET7 inhibitors and as a chemical probe for SET7 biological function studies.
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Affiliation(s)
- Zeng Hou
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China; University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
| | - Wenjian Min
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China; Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Rukang Zhang
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA 30322, USA; Winship Cancer Institute, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Ao Niu
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
| | - Yuanqing Li
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China; University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
| | - Liyuan Cao
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Jie Han
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China; University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
| | - Cheng Luo
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China; University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
| | - Peng Yang
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China; Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China.
| | - Hong Ding
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China; State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China.
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Effects of Mycoplasmas on the Host Cell Signaling Pathways. Pathogens 2020; 9:pathogens9040308. [PMID: 32331465 PMCID: PMC7238135 DOI: 10.3390/pathogens9040308] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 04/18/2020] [Accepted: 04/19/2020] [Indexed: 12/22/2022] Open
Abstract
Mycoplasmas are the smallest free-living organisms. Reduced sizes of their genomes put constraints on the ability of these bacteria to live autonomously and make them highly dependent on the nutrients produced by host cells. Importantly, at the organism level, mycoplasmal infections may cause pathological changes to the host, including cancer and severe immunological reactions. At the molecular level, mycoplasmas often activate the NF-κB (nuclear factor kappa-light-chain-enhancer of activated B cells) inflammatory response and concomitantly inhibit the p53-mediated response, which normally triggers the cell cycle and apoptosis. Thus, mycoplasmal infections may be considered as cancer-associated factors. At the same time, mycoplasmas through their membrane lipoproteins (LAMPs) along with lipoprotein derivatives (lipopeptide MALP-2, macrophage-activating lipopeptide-2) are able to modulate anti-inflammatory responses via nuclear translocation and activation of Nrf2 (the nuclear factor-E2-related anti-inflammatory transcription factor 2). Thus, interactions between mycoplasmas and host cells are multifaceted and depend on the cellular context. In this review, we summarize the current information on the role of mycoplasmas in affecting the host’s intracellular signaling mediated by the interactions between transcriptional factors p53, Nrf2, and NF-κB. A better understanding of the mechanisms underlying pathologic processes associated with reprogramming eukaryotic cells that arise during the mycoplasma-host cell interaction should facilitate the development of new therapeutic approaches to treat oncogenic and inflammatory processes.
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Khaleel EF, Badi RM, Satti HH, Mostafa DG. Exendin-4 exhibits a tumour suppressor effect in SKOVR-3 and OVACR-3 ovarian cancer cells lines by the activation of SIRT1 and inhibition of NF-κB. Clin Exp Pharmacol Physiol 2020; 47:1092-1102. [PMID: 32072679 DOI: 10.1111/1440-1681.13288] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 02/16/2020] [Accepted: 02/17/2020] [Indexed: 01/25/2023]
Abstract
This study investigated if EX-527 has an anti-tumour effect in SKOV-3 and OVCAR-3 ovarian cancer (OC) cell lines and if this effect involves the SIRT1/NF-κB axis. Cells were cultured in the presence or absence of EX-527, a selective SIRT-1 inhibitor. Exendin-4 significantly induced cell death in both cell lines and inhibited cell migration and invasion. Also, it decreased protein levels of Bcl-2, MMP-9, and ICAM-1 and increased those of Bax, cyclin D1 and cleaved caspase-3. Mechanistically, Exendin-4 increased the activity and nuclear accumulation of SIRT1 and decreased nuclear levels of NF-κB p65; acetylated levels of NF-κB p65, and cytoplasmic levels of p-IKKα and p-IκBα. EX-527 partially ameliorated the effect of Exendin-4 on cell death, migration, and invasion, as well as on the expression of Bcl-2, MMP-9, Bax, cleaved caspase-3 and ICAM-1. In addition, EX-527 did not affect the levels of nuclear p65 and p-p65 (Ser536); p-IκBα (Ser32) and p-IKKαβ. In conclusion, Exendin-4 can suppress OC by inhibiting NF-kB through SIRT1 dependent and independent mechanisms.
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Affiliation(s)
- Eman F Khaleel
- Department of Medical Physiology, College of Medicine, King Khalid University, Abha, Saudi Arabia.,Faculty of Medicine, Department of Medical Physiology, Cairo University, Cairo, Egypt
| | - Rehab M Badi
- Department of Medical Physiology, College of Medicine, King Khalid University, Abha, Saudi Arabia.,Faculty of Medicine, Department of Physiology, University of Khartoum, Khartoum, Sudan
| | - Huda H Satti
- Department of Pathology, College of Medicine, King Khalid University, Abha, Saudi Arabia.,Faculty of Medicine, Department of Pathology, University of Khartoum, Khartoum, Sudan
| | - Dalia G Mostafa
- Department of Medical Physiology, College of Medicine, King Khalid University, Abha, Saudi Arabia.,Faculty of Medicine, Department of Medical Physiology, Assiut University, Assiut, Egypt
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Mahesh A, Khan MIK, Govindaraju G, Verma M, Awasthi S, Chavali PL, Chavali S, Rajavelu A, Dhayalan A. SET7/9 interacts and methylates the ribosomal protein, eL42 and regulates protein synthesis. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2020; 1867:118611. [DOI: 10.1016/j.bbamcr.2019.118611] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 10/21/2019] [Accepted: 11/13/2019] [Indexed: 12/14/2022]
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SETD7 promotes TNF-α-induced proliferation and migration of airway smooth muscle cells in vitro through enhancing NF-κB/CD38 signaling. Int Immunopharmacol 2020; 72:459-466. [PMID: 31035088 DOI: 10.1016/j.intimp.2019.04.043] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 03/27/2019] [Accepted: 04/19/2019] [Indexed: 11/21/2022]
Abstract
The inflammation-induced the excessive proliferation and migration of airway smooth muscle (ASM) cells in the airway wall contribute to airway remodeling in asthma pathogenesis. SET domain-containing lysine methyltransferase 7 (SETD7) has emerged as one of the key regulators of inflammation. Yet, the function of SETD7 in regulating inflammation-induced ASM cell proliferation and invasion remains unclear. In the present study, we aimed to investigate the function of SETD7 in regulating ASM cell proliferation and invasion induced by tumor necrosis factor (TNF)-α in vitro. Our results showed that SETD7 expression was upregulated in ASM cells stimulated with TNF-α. Silencing SETD7 significantly decreased TNF-α-induced ASM cell proliferation and migration, while SETD7 overexpression exhibited the opposite effect. Notably, silencing SETD7 decreased the activation of nuclear factor (NF)-κB and reduced the expression of CD38 induced by TNF-α. Blocking NF-κB activation significantly abrogated the promotional effect of SETD7 overexpression on CD38 expression. Moreover, overexpression of CD38 partially reversed the inhibitory effect of SETD7 silencing on TNF-α-induced ASM cell proliferation and migration. Overall, these results demonstrate that SETD7 regulates TNF-α-induced ASM cell proliferation and migration through modulation of NF-κB/CD38 signaling, suggesting a potential role of SETD7 in asthma airway remodeling.
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The inflammatory effect of epigenetic factors and modifications in type 2 diabetes. Inflammopharmacology 2019; 28:345-362. [PMID: 31707555 DOI: 10.1007/s10787-019-00663-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 10/30/2019] [Indexed: 02/06/2023]
Abstract
Inflammation has a central role in the etiology of type 2 diabetes (T2D) and its complications. Both genetic and epigenetic factors have been implicated in the development of T2D-associated inflammation. Epigenetic mechanisms regulate the function of several components of the immune system. Diabetic conditions trigger aberrant epigenetic alterations that contribute to the progression of insulin resistance and β-cell dysfunction by induction of inflammatory responses. Thus, targeting epigenetic factors and modifications, as one of the underlying causes of inflammation, could lead to the development of novel immune-based strategies for the treatment of T2D. The aim of this review is to provide an overview of the epigenetic mechanisms involved in the propagation and perpetuation of chronic inflammation in T2D. We also discuss the possible anti-inflammatory approaches that target epigenetic factors for the treatment of T2D.
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Modulation of NF-κB and Nrf2 pathways by lycopene supplementation in heat-stressed poultry. WORLD POULTRY SCI J 2019. [DOI: 10.1017/s0043933915000288] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Jeong YJ, Oh HK, Choi HR. Methylation of the RELA Gene is Associated with Expression of NF-κB1 in Response to TNF-α in Breast Cancer. Molecules 2019; 24:E2834. [PMID: 31382678 PMCID: PMC6696039 DOI: 10.3390/molecules24152834] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 07/28/2019] [Accepted: 08/01/2019] [Indexed: 11/16/2022] Open
Abstract
The nuclear factor (NF)-κB family of transcriptional factors plays a critical role in inflammation, immunoregulation, cell differentiation, and tumorigenesis. This study aims to investigate the role of methylation of genes encoding for the NF-κB family in breast cancer. We analyze the DNA methylation status of the NFKB1 gene and the RELA gene in breast cancer using pyrosequencing. The expression of NF-κB1 and RELA proteins is assessed and the level of RNA transcripts in frozen tissue is determined using RT-PCR. There is no statistically significant difference in the methylation status of the NFKB1 and the RELA genes between tumors and normal tissues. The methylation status of the NFKB1 gene and the RELA gene is not significantly associated with the levels of NF-κB1 transcripts in tumor tissues. However, the methylation level of the RELA gene is significantly associated with the level of tumor necrosis factor (TNF)-α. In addition, the level of NF-κB1 transcripts was associated with the levels of TNF-α and IL-4. In tumors with positive TNF-α, the increased methylation level of the RELA gene is significantly associated with the positive expression of NF-κB1 transcripts. These results demonstrate that the level of the RELA gene methylation is related to the levels of NF-κB1 transcripts under the influence of TNF-α. Further study is needed to determine how TNF-α is involved in the methylation of the RELA gene and the subsequent expression of NF-κB1.
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Affiliation(s)
- Young Ju Jeong
- Department of Surgery, School of Medicine, Catholic University of Daegu, Daegu 42472, Korea.
| | - Hoon Kyu Oh
- Department of Pathology, School of Medicine, Catholic University of Daegu, Daegu 42472, Korea
| | - Hye Ryeon Choi
- Department of Surgery, School of Medicine, Catholic University of Daegu, Daegu 42472, Korea
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Levy D. Lysine methylation signaling of non-histone proteins in the nucleus. Cell Mol Life Sci 2019; 76:2873-2883. [PMID: 31123776 PMCID: PMC11105312 DOI: 10.1007/s00018-019-03142-0] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 05/10/2019] [Indexed: 12/18/2022]
Abstract
Lysine methylation, catalyzed by protein lysine methyltransferases (PKMTs), is a central post-translational modification regulating many signaling pathways. It has direct and indirect effects on chromatin structure and transcription. Accumulating evidence suggests that dysregulation of PKMT activity has a fundamental impact on the development of many pathologies. While most of these works involve in-depth analysis of methylation events in the context of histones, in recent years, it has become evident that methylation of non-histone proteins also plays a pivotal role in cell processes. This review highlights the importance of non-histone methylation, with focus on methylation events taking place in the nucleus. Known experimental platforms which were developed to identify new methylation events, as well as examples of specific lysine methylation signaling events which regulate key transcription factors, are presented. In addition, the role of these methylation events in normal and disease states is emphasized.
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Affiliation(s)
- Dan Levy
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Ben-Gurion University of the Negev, 84105, Beersheba, Israel.
- The National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, P.O.B. 653, 84105, Beersheba, Israel.
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46
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Lei A, Chen L, Zhang M, Yang X, Xu L, Cao N, Zhang Z, Cao Y. EZH2 Regulates Protein Stability via Recruiting USP7 to Mediate Neuronal Gene Expression in Cancer Cells. Front Genet 2019; 10:422. [PMID: 31130994 PMCID: PMC6510286 DOI: 10.3389/fgene.2019.00422] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 04/17/2019] [Indexed: 01/01/2023] Open
Abstract
Misexpression of chromatin modification factors and changed epigenetic modifications play crucial roles for tumorigenesis. Our previous studies demonstrated that inhibition of epigenetic modification enzymes EZH2, LSD1, DNMTs, and HDACs caused post-mitotic neuron-like differentiation in different cancer cells. However, how they regulate neuronal differentiation in cancer cells was unknown. Here, we show that EZH2, LSD1, DNMT1, and HDAC1 form interactions themselves, meanwhile, they also interact with SMAD proteins and β-CATENIN in cancer cells. Chemical inhibition of these enzymes leads to reduced level of proteins except HDAC1. The change in protein level and/or enzymatic activities further result in changed chromatin modifications on neuronal gene promoters, and activation of neuronal genes. Inhibition of these enzymes in neural progenitor cells (NPCs) also caused neuronal differentiation, similar to cancer cells. Particularly, EZH2 interacts with and required for the stability of LSD1, HDAC1, DNMT1, β-CATENIN, or SMAD2/4, via recruitment of deubiquitinase USP7. Reduced EZH2 leads to enhanced ubiquitination and degradation of these proteins, and decreased binding of LSD1, HDAC1, and DNMT1 to neuronal gene promoters, and lessened Wnt and TGFβ target gene activation. Hence, EZH2 sustains a series of proteins that promote tumorigenesis, in addition to its original function of histone methylation. Considering together with other studies, we conclude that these chromatin modification factors function in the same way in cancer cells as in neural progenitor/stem cells. The similarity between cancer cells and neural progenitor/stem cells provides an insight into the essence and unified framework for cancer initiation and progression, and are suggestive for novel strategies of cancer therapy.
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Affiliation(s)
- Anhua Lei
- China's Ministry of Education, Key Laboratory of Model Animals for Disease Study, Model Animal Research Center of Nanjing University, Nanjing, China
| | - Lu Chen
- China's Ministry of Education, Key Laboratory of Model Animals for Disease Study, Model Animal Research Center of Nanjing University, Nanjing, China
| | - Min Zhang
- China's Ministry of Education, Key Laboratory of Model Animals for Disease Study, Model Animal Research Center of Nanjing University, Nanjing, China
| | - Xiaoli Yang
- China's Ministry of Education, Key Laboratory of Model Animals for Disease Study, Model Animal Research Center of Nanjing University, Nanjing, China
| | - Liyang Xu
- China's Ministry of Education, Key Laboratory of Model Animals for Disease Study, Model Animal Research Center of Nanjing University, Nanjing, China
| | - Ning Cao
- China's Ministry of Education, Key Laboratory of Model Animals for Disease Study, Model Animal Research Center of Nanjing University, Nanjing, China
| | - Zan Zhang
- China's Ministry of Education, Key Laboratory of Model Animals for Disease Study, Model Animal Research Center of Nanjing University, Nanjing, China
| | - Ying Cao
- China's Ministry of Education, Key Laboratory of Model Animals for Disease Study, Model Animal Research Center of Nanjing University, Nanjing, China
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47
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Han D, Huang M, Wang T, Li Z, Chen Y, Liu C, Lei Z, Chu X. Lysine methylation of transcription factors in cancer. Cell Death Dis 2019; 10:290. [PMID: 30926778 PMCID: PMC6441099 DOI: 10.1038/s41419-019-1524-2] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 03/09/2019] [Accepted: 03/11/2019] [Indexed: 12/28/2022]
Abstract
Protein lysine methylation is a critical and dynamic post-translational modification that can regulate protein stability and function. This post-translational modification is regulated by lysine methyltransferases and lysine demethylases. Recent studies using mass-spectrometric techniques have revealed that in addition to histones, a great number of transcription factors are also methylated, often at multiple sites and to different degrees (mono-, di-, trimethyl lysine). The biomedical significance of transcription factor methylation in human diseases, including cancer, has been explored recently. Some studies have demonstrated that interfering with transcription factor lysine methylation both in vitro and in vivo can inhibit cancer cell proliferation, thereby reversing tumor progression. The inhibitors targeting lysine methyltransferases and lysine demethylases have been under development for the past two decades, and may be used as potential anticancer agents in the clinic. In this review, we focus on the current findings of transcription factor lysine methylation, and the effects on both transcriptional activity and target gene expression. We outlined the biological significance of transcription factor lysine methylation on tumor progression and highlighted its clinical value in cancer therapy.
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Affiliation(s)
- Dong Han
- Department of Medical Oncology, Jinling Hospital, Nanjing Clinical School of Southern Medical University, Nanjing, Jiangsu Province, China
| | - Mengxi Huang
- Department of Medical Oncology, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu Province, China
| | - Ting Wang
- Department of Medical Oncology, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu Province, China
| | - Zhiping Li
- Department of Medical Oncology, Jinling Hospital, Nanjing Clinical School of Southern Medical University, Nanjing, Jiangsu Province, China
| | - Yanyan Chen
- Department of Medical Oncology, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu Province, China
| | - Chao Liu
- Department of Medical Oncology, Jinling Hospital, Nanjing Clinical School of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Zengjie Lei
- Department of Medical Oncology, Jinling Hospital, Nanjing Clinical School of Southern Medical University, Nanjing, Jiangsu Province, China. .,Department of Medical Oncology, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu Province, China.
| | - Xiaoyuan Chu
- Department of Medical Oncology, Jinling Hospital, Nanjing Clinical School of Southern Medical University, Nanjing, Jiangsu Province, China. .,Department of Medical Oncology, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu Province, China.
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Rex J, Lutz A, Faletti LE, Albrecht U, Thomas M, Bode JG, Borner C, Sawodny O, Merfort I. IL-1β and TNFα Differentially Influence NF-κB Activity and FasL-Induced Apoptosis in Primary Murine Hepatocytes During LPS-Induced Inflammation. Front Physiol 2019; 10:117. [PMID: 30842741 PMCID: PMC6391654 DOI: 10.3389/fphys.2019.00117] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Accepted: 01/30/2019] [Indexed: 12/12/2022] Open
Abstract
Macrophage-derived cytokines largely influence the behavior of hepatocytes during an inflammatory response. We previously reported that both TNFα and IL-1β, which are released by macrophages upon LPS stimulation, affect Fas ligand (FasL)-induced apoptotic signaling. Whereas TNFα preincubation leads to elevated levels of caspase-3 activity and cell death, pretreatment with IL-1β induces increased caspase-3 activity but keeps cells alive. We now report that IL-1β and TNFα differentially influence NF-κB activity resulting in a differential upregulation of target genes, which may contribute to the distinct effects on cell viability. A reduced NF-κB activation model was established to further investigate the molecular mechanisms which determine the distinct cell fate decisions after IL-1β and TNFα stimulation. To study this aspect in a more physiological setting, we used supernatants from LPS-stimulated bone marrow-derived macrophages (BMDMs). The treatment of hepatocytes with the BMDM supernatant, which contains both IL-1β and TNFα, sensitized to FasL-induced caspase-3 activation and cell death. However, when TNFα action was blocked by neutralizing antibodies, cell viability after stimulation with the BMDM supernatant and FasL increased as compared to single FasL stimulation. This indicates the important role of TNFα in the sensitization of apoptosis in hepatocytes. These results give first insights into the complex interplay between macrophages and hepatocytes which may influence life/death decisions of hepatocytes during an inflammatory reaction of the liver in response to a bacterial infection.
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Affiliation(s)
- Julia Rex
- Institute for System Dynamics, University of Stuttgart, Stuttgart, Germany
| | - Anna Lutz
- Department of Pharmaceutical Biology and Biotechnology, Albert Ludwigs University Freiburg, Freiburg, Germany
| | - Laura E Faletti
- Institute of Molecular Medicine and Cell Research, Albert Ludwigs University Freiburg, Freiburg, Germany
| | - Ute Albrecht
- Clinic of Gastroenterology, Hepatology and Infection Diseases, Heinrich-Heine-University, Duesseldorf, Germany
| | - Maria Thomas
- Dr. Margarete Fischer-Bosch Institute of Clinical Pharmacology, Stuttgart and University of Tuebingen, Tuebingen, Germany
| | - Johannes G Bode
- Clinic of Gastroenterology, Hepatology and Infection Diseases, Heinrich-Heine-University, Duesseldorf, Germany
| | - Christoph Borner
- Department of Pharmaceutical Biology and Biotechnology, Albert Ludwigs University Freiburg, Freiburg, Germany.,Spemann Graduate School of Biology and Medicine, Albert Ludwigs University Freiburg, Freiburg, Germany.,BIOSS Centre for Biological Signaling Studies, Albert Ludwigs University Freiburg, Freiburg, Germany
| | - Oliver Sawodny
- Institute for System Dynamics, University of Stuttgart, Stuttgart, Germany
| | - Irmgard Merfort
- Department of Pharmaceutical Biology and Biotechnology, Albert Ludwigs University Freiburg, Freiburg, Germany.,Spemann Graduate School of Biology and Medicine, Albert Ludwigs University Freiburg, Freiburg, Germany
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49
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Abstract
The transcription factor NF-κB is a critical regulator of immune and inflammatory responses. In mammals, the NF-κB/Rel family comprises five members: p50, p52, p65 (Rel-A), c-Rel, and Rel-B proteins, which form homo- or heterodimers and remain as an inactive complex with the inhibitory molecules called IκB proteins in resting cells. Two distinct NF-κB signaling pathways have been described: 1) the canonical pathway primarily activated by pathogens and inflammatory mediators, and 2) the noncanonical pathway mostly activated by developmental cues. The most abundant form of NF-κB activated by pathologic stimuli via the canonical pathway is the p65:p50 heterodimer. Disproportionate increase in activated p65 and subsequent transactivation of effector molecules is integral to the pathogenesis of many chronic diseases such as the rheumatoid arthritis, inflammatory bowel disease, multiple sclerosis, and even neurodegenerative pathologies. Hence, the NF-κB p65 signaling pathway has been a pivotal point for intense drug discovery and development. This review begins with an overview of p65-mediated signaling followed by discussion of strategies that directly target NF-κB p65 in the context of chronic inflammation.
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Affiliation(s)
- Sivagami Giridharan
- Department of Oral Medicine, Madha Dental College, Kundrathur, Chennai, TN, India
| | - Mythily Srinivasan
- Department of Oral Pathology, Medicine and Radiology, Indiana University School of Dentistry, Indiana University Purdue University at Indianapolis, Indianapolis, IN, USA,
- Provaidya LLC, Indianapolis, IN, USA,
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50
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van der Heijden CDCC, Noz MP, Joosten LAB, Netea MG, Riksen NP, Keating ST. Epigenetics and Trained Immunity. Antioxid Redox Signal 2018; 29:1023-1040. [PMID: 28978221 PMCID: PMC6121175 DOI: 10.1089/ars.2017.7310] [Citation(s) in RCA: 152] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
SIGNIFICANCE A growing body of clinical and experimental evidence has challenged the traditional understanding that only the adaptive immune system can mount immunological memory. Recent findings describe the adaptive characteristics of the innate immune system, underscored by its ability to remember antecedent foreign encounters and respond in a nonspecific sensitized manner to reinfection. This has been termed trained innate immunity. Although beneficial in the context of recurrent infections, this might actually contribute to chronic immune-mediated diseases, such as atherosclerosis. Recent Advances: In line with its proposed role in sustaining cellular memories, epigenetic reprogramming has emerged as a critical determinant of trained immunity. Recent technological and computational advances that improve unbiased acquisition of epigenomic profiles have significantly enhanced our appreciation for the complexities of chromatin architecture in the contexts of diverse immunological challenges. CRITICAL ISSUES Key to resolving the distinct chromatin signatures of innate immune memory is a comprehensive understanding of the precise physiological targets of regulatory proteins that recognize, deposit, and remove chemical modifications from chromatin as well as other gene-regulating factors. Drawing from a rapidly expanding compendium of experimental and clinical studies, this review details a current perspective of the epigenetic pathways that support the adapted phenotypes of monocytes and macrophages. FUTURE DIRECTIONS We explore future strategies that are aimed at exploiting the mechanism of trained immunity to improve the prevention and treatment of infections and immune-mediated chronic disorders.
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Affiliation(s)
| | - Marlies P Noz
- 1 Department of Internal Medicine, Radboud University Medical Center , Nijmegen, The Netherlands
| | - Leo A B Joosten
- 1 Department of Internal Medicine, Radboud University Medical Center , Nijmegen, The Netherlands
| | - Mihai G Netea
- 1 Department of Internal Medicine, Radboud University Medical Center , Nijmegen, The Netherlands .,2 Department for Genomics & Immunoregulation, Life and Medical Sciences Institute (LIMES), University of Bonn , Bonn, Germany
| | - Niels P Riksen
- 1 Department of Internal Medicine, Radboud University Medical Center , Nijmegen, The Netherlands
| | - Samuel T Keating
- 1 Department of Internal Medicine, Radboud University Medical Center , Nijmegen, The Netherlands
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