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Chen DD, Shi Q, Liu X, Liang DL, Wu YZ, Fan Q, Xiao K, Chen C, Dong XP. Aberrant SENP1-SUMO-Sirt3 Signaling Causes the Disturbances of Mitochondrial Deacetylation and Oxidative Phosphorylation in Prion-Infected Animal and Cell Models. ACS Chem Neurosci 2023; 14:1610-1621. [PMID: 37092685 DOI: 10.1021/acschemneuro.2c00786] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2023] Open
Abstract
Post-translational modifications of proteins, such as acetylation and SUMOylation, play important roles in regulation of protein functions and pathophysiology of different diseases including neurodegenerative diseases. Our previous studies have identified aberrant acetylation profiles and reduced deacetylases Sirt3 and Sirt1 in the brains of prion-infected mouse models. In this study, we have found that the levels of acetylated forms of AceCS2 and LCAD, the key enzymes regulating lipid metabolism, CS and IHD2, the key enzymes regulating complete oxidative metabolism, GDH, the key enzyme regulating the oxidative decomposition of glutamate into the tricarboxylic acid (TCA) cycle, and NDUFA9, the essential component in the complex I of respiratory chain activity, were significantly upregulated in the prion-infected animal and cell models, along with the decrease of Sirt3 activity and mitochondrial cytochrome c oxidase activity. Meanwhile, the increases of SUMO1 modifications and SUMO1-Sirt3 and decrease of SENP1 were identified in the brains and the cultured cells with prion infections. Removal of prion propagation in the cultured cells partially, but significantly, reversed the aberrant situations. Moreover, similar abnormal phenomena were also observed in the cultured 293 T cells transiently expressing cytosolic form PrP (Cyto-PrP), including decreased SENP1, increased SUMO1, decreased Sirt3 activity, increased acetylated forms of the key enzymes, and decreased cytochrome c oxidase activity. Attenuation of the accumulation of Cyto-PrP by co-expression of the p62 protein sufficiently diminished those abnormalities. The data here strongly indicate that deposits of prions in brains or accumulations of Cyto-PrP in cells trigger dysregulation of the SENP1-SUMO1-Sirt pathway and subsequently induce aberrant mitochondrial deacetylation and the mitochondrial respiratory chain.
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Affiliation(s)
- Dong-Dong Chen
- State Key Laboratory for Infectious Disease Prevention and Control, NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Fujian Agriculture and Forestry University, Beijing 102206, China
| | - Qi Shi
- State Key Laboratory for Infectious Disease Prevention and Control, NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Fujian Agriculture and Forestry University, Beijing 102206, China
- China Academy of Chinese Medical Sciences, Beijing 100091, China
| | - Xin Liu
- State Key Laboratory for Infectious Disease Prevention and Control, NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Fujian Agriculture and Forestry University, Beijing 102206, China
| | - Dong-Lin Liang
- State Key Laboratory for Infectious Disease Prevention and Control, NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Fujian Agriculture and Forestry University, Beijing 102206, China
| | - Yue-Zhang Wu
- State Key Laboratory for Infectious Disease Prevention and Control, NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Fujian Agriculture and Forestry University, Beijing 102206, China
| | - Qin Fan
- State Key Laboratory for Infectious Disease Prevention and Control, NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Fujian Agriculture and Forestry University, Beijing 102206, China
| | - Kang Xiao
- State Key Laboratory for Infectious Disease Prevention and Control, NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Fujian Agriculture and Forestry University, Beijing 102206, China
| | - Cao Chen
- State Key Laboratory for Infectious Disease Prevention and Control, NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Fujian Agriculture and Forestry University, Beijing 102206, China
- Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan 430071, China
| | - Xiao-Ping Dong
- State Key Laboratory for Infectious Disease Prevention and Control, NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Fujian Agriculture and Forestry University, Beijing 102206, China
- Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan 430071, China
- China Academy of Chinese Medical Sciences, Beijing 100091, China
- Shanghai Institute of Infectious Disease and Biosafety, Shanghai 201517, China
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Xia Y, Chen C, Chen J, Hu C, Yang W, Wang L, Liu L, Gao LP, Wu YZ, Chen DD, Shi Q, Chen ZB, Dong XP. Enhanced M-CSF/CSF1R Signaling Closely Associates with PrP Sc Accumulation in the Scrapie-Infected Cell Line and the Brains of Scrapie-Infected Experimental Rodents. Mol Neurobiol 2022; 59:6534-6551. [PMID: 35970974 DOI: 10.1007/s12035-022-02989-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 08/06/2022] [Indexed: 12/17/2022]
Abstract
Activation and proliferation of microglia are one of the hallmarks of prion disease and is usually accompanied by increased levels of various cytokines and chemokines. Our previous study demonstrated that the level of brain macrophage colony-stimulating factor (M-CSF) was abnormally elevated during prion infection, but its association with PrPSc is not completely clear. In this study, colocalization of the increased M-CSF with accumulated PrPSc was observed by IHC with serial brain sections. Reliable molecular interaction between total PrP and M-CSF was observed in the brain of 263 K-infected hamsters and in cultured prion-infected cell line. Immunofluorescent assays showed that morphological colocalization of M-CSF with neurons and microglia, but not with astrocytes in brains of scrapie-infected animals. The transcriptional and expressing levels of CSF1R were also significantly increased in prion-infected cell line and mice, and colocalization of CSF1R with neurons and microglia was observed in the brains of prion-infected mouse models. Removal of PrPSc replication by resveratrol in SMB-S15 cells induced limited reductions of cellular levels of M-CSF and CSF1R. In addition, we found that the level of IL-34, another ligand of CSF1R, did not change significantly after prion infection, but its distribution on the cell types in the brains shifted from neurons in healthy mice to the proliferated astrocytes and microglia in scrapie-infected mice. Our data demonstrate activation of M-CSF/IL-34/CSF1R signaling in the microenvironment of prion infection, strongly indicating its vital role in the pathophysiology of prions. It provides solid scientific evidence for the therapeutic potential of inhibiting M-CSF/CSF1R signaling in prion diseases.
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Affiliation(s)
- Ying Xia
- State Key Laboratory for Infectious Disease Prevention and Control, NHC Key Laboratory of Medical Virology and Viral Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), Chinese Center for Disease Control and Prevention, National Institute for Viral Disease Control and Prevention, Beijing, China
| | - Cao Chen
- State Key Laboratory for Infectious Disease Prevention and Control, NHC Key Laboratory of Medical Virology and Viral Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), Chinese Center for Disease Control and Prevention, National Institute for Viral Disease Control and Prevention, Beijing, China.
- Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, China.
| | - Jia Chen
- State Key Laboratory for Infectious Disease Prevention and Control, NHC Key Laboratory of Medical Virology and Viral Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), Chinese Center for Disease Control and Prevention, National Institute for Viral Disease Control and Prevention, Beijing, China
| | - Chao Hu
- State Key Laboratory for Infectious Disease Prevention and Control, NHC Key Laboratory of Medical Virology and Viral Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), Chinese Center for Disease Control and Prevention, National Institute for Viral Disease Control and Prevention, Beijing, China
| | - Wei Yang
- State Key Laboratory for Infectious Disease Prevention and Control, NHC Key Laboratory of Medical Virology and Viral Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), Chinese Center for Disease Control and Prevention, National Institute for Viral Disease Control and Prevention, Beijing, China
| | - Lin Wang
- State Key Laboratory for Infectious Disease Prevention and Control, NHC Key Laboratory of Medical Virology and Viral Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), Chinese Center for Disease Control and Prevention, National Institute for Viral Disease Control and Prevention, Beijing, China
- College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Lian Liu
- State Key Laboratory for Infectious Disease Prevention and Control, NHC Key Laboratory of Medical Virology and Viral Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), Chinese Center for Disease Control and Prevention, National Institute for Viral Disease Control and Prevention, Beijing, China
| | - Li-Ping Gao
- State Key Laboratory for Infectious Disease Prevention and Control, NHC Key Laboratory of Medical Virology and Viral Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), Chinese Center for Disease Control and Prevention, National Institute for Viral Disease Control and Prevention, Beijing, China
| | - Yue-Zhang Wu
- State Key Laboratory for Infectious Disease Prevention and Control, NHC Key Laboratory of Medical Virology and Viral Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), Chinese Center for Disease Control and Prevention, National Institute for Viral Disease Control and Prevention, Beijing, China
| | - Dong-Dong Chen
- State Key Laboratory for Infectious Disease Prevention and Control, NHC Key Laboratory of Medical Virology and Viral Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), Chinese Center for Disease Control and Prevention, National Institute for Viral Disease Control and Prevention, Beijing, China
| | - Qi Shi
- State Key Laboratory for Infectious Disease Prevention and Control, NHC Key Laboratory of Medical Virology and Viral Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), Chinese Center for Disease Control and Prevention, National Institute for Viral Disease Control and Prevention, Beijing, China
- China Academy of Chinese Medical Sciences, Beijing, China
| | - Zhi-Bao Chen
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China.
| | - Xiao-Ping Dong
- State Key Laboratory for Infectious Disease Prevention and Control, NHC Key Laboratory of Medical Virology and Viral Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), Chinese Center for Disease Control and Prevention, National Institute for Viral Disease Control and Prevention, Beijing, China.
- Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, China.
- College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, China.
- Shanghai Institute of Infectious Disease and Biosafety, Shanghai, China.
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Shi Q, Chen C, Xiao K, Zhou W, Gao C, Gao L, Han J, Wang J, Dong X. Extensive Disturbances of Intracellular Components and Dysfunctions of Biological Pathways in the Brain Tissues During Prion Infection - China's Studies. China CDC Wkly 2022; 4:741-747. [PMID: 36285114 PMCID: PMC9547740 DOI: 10.46234/ccdcw2022.154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 08/08/2022] [Indexed: 11/14/2022] Open
Abstract
The study describes some of the major findings of changes in intracellular components and biological pathways in the brain during prion infection and hypothesizes some important physiological and pathological approaches mainly based on our studies. Omics techniques analysis of messenger RNA (mRNA) and proteins were carried out in the study. Meanwhile, Western blot, immunohistochemistry, and immunofluorescence were used for protein analysis in different signaling pathways. Statistical analyses were used to describe the protein differences in signaling pathways of infected and normal samples. This report reviewed and summarized our studies on the aberrant changes in intracellular components and biological functions in the brains of prion disease (PrD). Omics analyses proposed extensive abnormal alterations of brain mRNAs transcriptions, protein expressions, and post-translational modifications. The molecular disturbances for microtubule instability and depolymerization, the dysregulations of different signals related with neuron loss and synaptic plasticity, the abnormalities of mitochondrial and endoplasmic reticulum stress, and disturbance of intracellular reactive oxygen species homeostasis during prion infection were precisely analyzed and reviewed. Aberrant disturbances of numerous biological molecules and signals in brain tissues were found during prion infection.
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Affiliation(s)
- Qi Shi
- State Key Laboratory for Infectious Disease Prevention and Control, NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China,China Academy of Chinese Medical Sciences, Beijing, China
| | - Cao Chen
- State Key Laboratory for Infectious Disease Prevention and Control, NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China,Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan City, Hubei Province, China
| | - Kang Xiao
- State Key Laboratory for Infectious Disease Prevention and Control, NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Wei Zhou
- State Key Laboratory for Infectious Disease Prevention and Control, NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Chen Gao
- State Key Laboratory for Infectious Disease Prevention and Control, NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Liping Gao
- State Key Laboratory for Infectious Disease Prevention and Control, NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Jun Han
- State Key Laboratory for Infectious Disease Prevention and Control, NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Jichun Wang
- State Key Laboratory for Infectious Disease Prevention and Control, NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China,Division of Science and Technology, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xiaoping Dong
- State Key Laboratory for Infectious Disease Prevention and Control, NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China,China Academy of Chinese Medical Sciences, Beijing, China,Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan City, Hubei Province, China,Shanghai Institute of Infectious Disease and Biosafety, Shanghai, China,Xiaoping Dong,
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PrP Sc Inhibition and Cellular Protection of DBL on a Prion-Infected Cultured Cell via Multiple Pathways. Mol Neurobiol 2022; 59:3310-3321. [PMID: 35303279 DOI: 10.1007/s12035-022-02729-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 01/01/2022] [Indexed: 10/18/2022]
Abstract
Prion diseases are kinds of fatal neurodegenerative diseases without effective therapeutic and prophylactic tools currently. In this study, the inhibition of PrPSc propagation and cellular protectivity of 3,4-dihydroxybenzalacetone (DBL), a small catechol-containing compound isolated and purified from the ethanol extract of Inonotus obliquus, upon a prion-infected cell line SMB-S15 were evaluated. Western blots showed that after incubation with 10 μM of DBL for 14 days, the level of PrPSc in SMB-S15 cells was significantly decreased. Meanwhile, the levels of ROS and hydrogen peroxide were decreased with a dose-dependent manner, whereas the levels of some antioxidant factors, such as HO-1, GCLC and GCLM, were significantly increased. The activities of total glutathione and SOD were up-regulated. DBL-treated SMB-S15 cells also showed the up-regulation of UPR-related proteins, including PERK, IRE1α, ATF6 and GRP78, and activation of autophagy system. Furthermore, the SIRT3 abnormalities caused by prion infection were relieved by DBL treatment. On the contrary, these comprehensive changes were not significantly noticed in the normal partner cell line SMB-PS under the same experimental condition. Those data indicate that treatment of DBL on prion-infected cells can reduce PrPSc level, activate UPR and autophagy system and meanwhile relieve intracellular oxidative stress, endoplasmic reticulum stress and mitochondrial dysfunction by raising the levels of multiple antioxidant factors. The PrPSc inhibition and protective effectiveness of DBL upon the prion-infected cells in vitro make it worthy of further study.
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Li L, Zeng H, He X, Chen JX. Sirtuin 3 Alleviates Diabetic Cardiomyopathy by Regulating TIGAR and Cardiomyocyte Metabolism. J Am Heart Assoc 2021; 10:e018913. [PMID: 33586458 PMCID: PMC8174281 DOI: 10.1161/jaha.120.018913] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Background Impairment of glycolytic metabolism is suggested to contribute to diabetic cardiomyopathy. In this study, we explored the roles of SIRT3 (Sirtuin 3) on cardiomyocyte glucose metabolism and cardiac function. Methods and Results Exposure of H9c2 cardiomyocyte cell lines to high glucose (HG) (30 mmol/L) resulted in a gradual decrease in SIRT3 and 6‐phosphofructo‐2‐kinase/fructose‐2,6‐bisphosphatase isoform 3 (PFKFB3) expression together with increases in p53 acetylation and TP53‐induced glycolysis and apoptosis regulator (TIGAR) expression. Glycolysis was significantly reduced in the cardiomyocyte exposed to HG. Transfection with adenovirus‐SIRT3 significantly increased PFKFB3 expression and reduced HG‐induced p53 acetylation and TIGAR expression. Overexpression of SIRT3 rescued impaired glycolysis and attenuated HG–induced reactive oxygen species formation and apoptosis. Knockdown of TIGAR in cardiomyocytes by using siRNA significantly increased PFKFB3 expression and glycolysis under hyperglycemic conditions. This was accompanied by a significant suppression of HG–induced reactive oxygen species formation and apoptosis. In vivo, overexpression of SIRT3 by an intravenous jugular vein injection of adenovirus‐SIRT3 resulted in a significant reduction of p53 acetylation and TIGAR expression together with upregulation of PFKFB3 expression in the heart of diabetic db/db mice at day 14. Overexpression of SIRT3 further reduced reactive oxygen species formation and blunted microvascular rarefaction in the diabetic db/db mouse hearts. Overexpression of SIRT3 significantly blunted cardiac fibrosis and hypertrophy and improved cardiac function at day 14. Conclusions Our study demonstrated that SIRT3 attenuated diabetic cardiomyopathy via regulating p53 acetylation and TIGAR expression. Therefore, SIRT3 may be a novel target for abnormal energy metabolism in diabetes mellitus.
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Affiliation(s)
- Lanfang Li
- From the Department of Pharmacology and Toxicology School of Medicine University of Mississippi Medical Center Jackson MS
| | - Heng Zeng
- From the Department of Pharmacology and Toxicology School of Medicine University of Mississippi Medical Center Jackson MS
| | - Xiaochen He
- From the Department of Pharmacology and Toxicology School of Medicine University of Mississippi Medical Center Jackson MS
| | - Jian-Xiong Chen
- From the Department of Pharmacology and Toxicology School of Medicine University of Mississippi Medical Center Jackson MS
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