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Walter MN, Montoya-Durango D, Rodriguez W, Wang Y, Zhang J, Chariker JH, Rouchka EC, Maldonado C, Bennett A, McClain CJ, Barve S, Gobejishvili L. Hepatocyte-specific mitogen-activated protein kinase phosphatase 1 in sexual dimorphism and susceptibility to alcohol induced liver injury. Front Immunol 2024; 15:1316228. [PMID: 38370409 PMCID: PMC10871047 DOI: 10.3389/fimmu.2024.1316228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 01/03/2024] [Indexed: 02/20/2024] Open
Abstract
Background It is well established that females are more susceptible to the toxic effects of alcohol, although the exact mechanisms are still poorly understood. Previous studies noted that alcohol reduces the expression of mitogen-activated protein kinase phosphatase 1 (MKP1), a negative regulator of mitogen-activated protein kinases (MAPK) in the liver. However, the role of hepatocyte- specific MKP1 in the pathogenesis of alcohol-associated liver disease (ALD) remains uncharacterized. This study aimed to evaluate the role of hepatocyte-specific MKP1 in the susceptibility and sexual dimorphism in alcohol-induced liver injury. Methods C57Bl/6 mice were used in an intragastric ethanol feeding model of alcohol-associated steatohepatitis (ASH). Hepatocyte-specific Mkp1-/- knockout and (Mkp1+/+ "f/f" male and female mice were subjected to the NIAAA chronic plus binge model. Primary mouse hepatocytes were used for in vitro studies. Liver RNA sequencing was performed on an Illumina NextSeq 500. Liver injury was evaluated by plasma alanine transaminase (ALT), hepatic ER stress and inflammation markers. Statistical analysis was carried out using ANOVA and the unpaired Student's t-test. Results ASH was associated with the severe injury accompanied by increased endoplasmic reticulum (ER) stress and significant downregulation of Dusp1 mRNA expression. In vitro, ethanol treatment resulted in a time-dependent decrease in Dusp1 mRNA and protein expression in primary hepatocytes in both males and females; however, this effect was significantly more pronounced in hepatocytes from females. In vivo, female mice developed more liver injury in a chronic plus binge model which was accompanied by a significant decrease in liver Dusp1 mRNA expression. In comparison, liver Dusp1 was not changed in male mice, while they developed milder injury to alcohol. Mkp1 deletion in hepatocytes led to increased alcohol induced liver injury, ER stress and inflammation in both sexes. Conclusion Hepatocyte Mkp1 plays a significant role in alcohol induced liver injury. Alcohol downregulates Mkp1 expression in hepatocytes in a sex dependent manner and could play a role in sexual dimorphism in increased female susceptibility to alcohol.
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Affiliation(s)
- Mary Nancy Walter
- Department of Physiology, School of Medicine, University of Louisville, Louisville, KY, United States
| | - Diego Montoya-Durango
- Department of Physiology, School of Medicine, University of Louisville, Louisville, KY, United States
| | - Walter Rodriguez
- Department of Physiology, School of Medicine, University of Louisville, Louisville, KY, United States
| | - Yali Wang
- Department of Physiology, School of Medicine, University of Louisville, Louisville, KY, United States
| | - JingWen Zhang
- Department of Medicine, School of Medicine, University of Louisville, Louisville, KY, United States
| | - Julia H. Chariker
- Department of Neuroscience Training, University of Louisville, Louisville, KY, United States
- Kentucky IDeA Networks of Biomedical Research Excellence, (KY INBRE) Bioinformatics Core, University of Louisville, Louisville, KY, United States
| | - Eric C. Rouchka
- Kentucky IDeA Networks of Biomedical Research Excellence, (KY INBRE) Bioinformatics Core, University of Louisville, Louisville, KY, United States
- Department of Biochemistry and Molecular Genetics, University of Louisville, Louisville, KY, United States
| | - Claudio Maldonado
- Department of Physiology, School of Medicine, University of Louisville, Louisville, KY, United States
| | - Anton Bennett
- Department of Pharmacology, Yale University School of Medicine, New Haven, CT, United States
| | - Craig James McClain
- Department of Medicine, School of Medicine, University of Louisville, Louisville, KY, United States
- Robley Rex Veterans Affairs (VA) Medical Center, Louisville, KY, United States
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY, United States
- Alcohol Research Center, University of Louisville, Louisville, KY, United States
- Hepatobiology and Toxicology Center, University of Louisville, Louisville, KY, United States
| | - Shirish Barve
- Department of Medicine, School of Medicine, University of Louisville, Louisville, KY, United States
- Alcohol Research Center, University of Louisville, Louisville, KY, United States
- Hepatobiology and Toxicology Center, University of Louisville, Louisville, KY, United States
| | - Leila Gobejishvili
- Department of Physiology, School of Medicine, University of Louisville, Louisville, KY, United States
- Department of Medicine, School of Medicine, University of Louisville, Louisville, KY, United States
- Alcohol Research Center, University of Louisville, Louisville, KY, United States
- Hepatobiology and Toxicology Center, University of Louisville, Louisville, KY, United States
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Zhang X, Li Y, Chen Y. Development of a Comprehensive Gene Signature Linking Hypoxia, Glycolysis, Lactylation, and Metabolomic Insights in Gastric Cancer through the Integration of Bulk and Single-Cell RNA-Seq Data. Biomedicines 2023; 11:2948. [PMID: 38001949 PMCID: PMC10669360 DOI: 10.3390/biomedicines11112948] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 10/17/2023] [Accepted: 10/27/2023] [Indexed: 11/26/2023] Open
Abstract
BACKGROUND Hypoxia and anaerobic glycolysis are cancer hallmarks and sources of the metabolite lactate. Intriguingly, lactate-induced protein lactylation is considered a novel epigenetic mechanism that predisposes cells toward a malignant state. However, the significance of comprehensive hypoxia-glycolysis-lactylation-related genes (HGLRGs) in cancer is unclear. We aimed to construct a model centered around HGLRGs for predicting survival, metabolic features, drug responsiveness, and immune response in gastric cancer. METHODS The integration of bulk and single-cell RNA-Seq data was achieved using data obtained from the TCGA and GEO databases to analyze HGLRG expression patterns. A HGLRG risk-score model was developed based on univariate Cox regression and a LASSO-Cox regression model and subsequently validated. Additionally, the relationships between the identified HGLRG signature and multiple metabolites, drug sensitivity and various cell clusters were explored. RESULTS Thirteen genes were identified as constituting the HGLRG signature. Using this signature, we established predictive models, including HGLRG risk scores and nomogram and Cox regression models. The stratification of patients into high- and low-risk groups based on HGLRG risk scores showed a better prognosis in the latter. The high-risk group displayed increased sensitivity to cytotoxic drugs and targeted inhibitors. The expression of the HGLRG BGN displayed a strong correlation with amino acids and lipid metabolites. Notably, a significant difference in immune infiltration, such as that of M1 macrophages and CD8 T cells, was correlated with the HGLRG signature. The abundant DUSP1 within the mesenchymal components was highlighted by single-cell transcriptomics. CONCLUSION The innovative HGLRG signature demonstrates efficacy in predicting survival and providing a practical clinical model for gastric cancer. The HGLRG signature reflects the internal metabolism, drug responsiveness, and immune microenvironment components of gastric cancer and is expected to boost patients' response to targeted therapy and immunotherapy.
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Affiliation(s)
- Xiangqian Zhang
- NHC Key Laboratory of Cancer Proteomics & State Local Joint Engineering Laboratroy for Anticancer Drugs, Department of Oncology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Yun Li
- NHC Key Laboratory of Cancer Proteomics & State Local Joint Engineering Laboratroy for Anticancer Drugs, Department of Oncology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Yongheng Chen
- NHC Key Laboratory of Cancer Proteomics & State Local Joint Engineering Laboratroy for Anticancer Drugs, Department of Oncology, Xiangya Hospital, Central South University, Changsha 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
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Xu K, Wang H, Wu Z. Genkwanin suppresses mitochondrial dysfunction to alleviate IL-1β-elicited inflammation, apoptosis, and degradation of extracellular matrix in chondrocytes through upregulating DUSP1. CHINESE J PHYSIOL 2023; 66:284-293. [PMID: 37635488 DOI: 10.4103/cjop.cjop-d-23-00031] [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] [Indexed: 08/29/2023] Open
Abstract
Osteoarthritis (OA) is a form of chronic degenerative disease contributing to elevated disability rate among the elderly. Genkwanin is an active component extracted from Daphne genkwa possessing pharmacologic effects. Here, this study is designed to expound the specific role of genkwanin in OA and elaborate the probable downstream mechanism. First, the viability of chondrocytes in the presence or absence of interleukin-1 beta (IL-1β) treatment was detected by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. Terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling assay was used to assess cell apoptosis. Inflammatory response was estimated through enzyme-linked immunosorbent assay and Western blot. In addition, immunofluorescence staining and Western blot were utilized to measure the expression of extracellular matrix (ECM)-associated proteins. Dual-specificity protein phosphatase-1 (DUSP1) expression was tested by reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and Western blot. Following DUSP1 elevation in genkwanin-treated chondrocytes exposed to IL-1β, inflammatory response and ECM-associated factors were evaluated as forementioned. In addition, 5,5',6,6'-tetrachloro-1,1',3,3'-tetraethylbenzimidazolocarbocyanine iodide staining was to assess the mitochondrial membrane potential. Adenosine triphosphate (ATP) level was examined with ATP assay kit, and RT-qPCR was used to test mitochondrial DNA expression. Results indicated that genkwanin administration enhanced the viability while ameliorated the apoptosis, inflammatory response, and ECM degradation in IL-1β-induced chondrocytes. Besides, genkwanin treatment fortified DUSP1 expression in IL-1β-exposed chondrocytes. DUSP1 interference further offsets the impacts of genkwanin on the inflammation, ECM degradation, and mitochondrial dysfunction in IL-1β-challenged chondrocytes. In short, genkwanin enhanced DUSP1 expression to mitigate mitochondrial dysfunction, thus ameliorating IL-1β-elicited inflammation, apoptosis, and degradation of ECM in chondrocytes.
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Affiliation(s)
- Kanna Xu
- Emergency Department, The First People's Hospital of Huzhou, Huzhou, Zhejiang, China
| | - Haoran Wang
- Department of Orthopedics, Hangzhou Children's Hospital, Hangzhou, Zhejiang, China
| | - Zhongqing Wu
- Department of Orthopedics, The First People's Hospital of Huzhou, Huzhou, Zhejiang, China
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Guo M, Wei J, Zhou Y, Qin Q. Antiviral immunity of grouper MAP kinase phosphatase 1 to Singapore grouper iridovirus infection. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2023; 143:104674. [PMID: 36889370 DOI: 10.1016/j.dci.2023.104674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 02/23/2023] [Accepted: 02/26/2023] [Indexed: 06/18/2023]
Abstract
Singapore grouper iridovirus (SGIV), with various mechanisms for evading and modulating host, has inflicted heavy economic losses in the grouper aquaculture. MAP kinase phosphatase 1 (MKP-1) regulates mitogen-activated protein kinases (MAPKs) to mediate the innate immune response. Here, we cloned EcMKP-1, an MKP-1 homolog from the orange-spotted grouper Epinephelus coioides, and investigated its role in the infection of SGIV. In juvenile grouper, EcMKP-1 was highly upregulated and peaked at different times after injection with lipopolysaccharide, polyriboinosinic polyribocytidylic acid and SGIV. EcMKP-1 expression in heterologous fathead minnow cells was able to suppress SGIV infection and replication. Furthermore, EcMKP-1 was a negative regulator of c-Jun N-terminal kinase (JNK) phosphorylation early in SGIV infection. EcMKP-1 decreased the apoptotic percentage and caspase-3 activity during the late stage of SGIV replication. Our results demonstrate critical functions of EcMKP-1 in antiviral immunity, JNK dephosphorylation and anti-apoptosis during SGIV infection.
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Affiliation(s)
- Minglan Guo
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, PR China; CAS-HKUST Sanya Joint Laboratory of Marine Science Research, Key Laboratory of Tropical Marine Biotechnology of Hainan Province, Sanya Institute of Ocean Eco-Environmental Engineering, SCSIO, Sanya, 572000, PR China
| | - Jingguang Wei
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, PR China; Department of Biological Sciences, National University of Singapore, Singapore, 117543, Singapore
| | - Yongcan Zhou
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, 570228, PR China
| | - Qiwei Qin
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, PR China; Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266000, PR China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), 528478, PR China.
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Gao Q, Jia F, Li X, Kong Y, Tian Z, Bi L, Li L. Biophysical cues to improve the immunomodulatory capacity of mesenchymal stem cells: The progress and mechanisms. Biomed Pharmacother 2023; 162:114655. [PMID: 37031489 DOI: 10.1016/j.biopha.2023.114655] [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: 02/25/2023] [Revised: 03/27/2023] [Accepted: 03/31/2023] [Indexed: 04/11/2023] Open
Abstract
Mesenchymal stem cells (MSCs) can maintain immune homeostasis and many preclinical trials with MSCs have been carried out around the world. In vitro culture of MSCs has been found to result in the decline of immunomodulatory capacity, migration and proliferation. To address these problems, simulating the extracellular environment for preconditioning of MSCs is a promising and inexpensive method. Biophysical cues in the external environment that MSCs are exposed to have been shown to affect MSC migration, residency, differentiation, secretion, etc. We review the main ways in which MSCs exert their immunomodulatory ability, and summarize recent advances in mechanical preconditioning of MSCs to enhance immunomodulatory capacity and related mechanical signal sensing and transduction mechanisms.
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Affiliation(s)
- Qingyuan Gao
- Department of Hematology and Oncology, China-Japan Union Hospital of Jilin University, Changchun 130021, China
| | - Fangru Jia
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun 130021, Jilin Province, China
| | - Xiangpan Li
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun 130021, Jilin Province, China
| | - Yanan Kong
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun 130021, Jilin Province, China
| | - Zhenya Tian
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun 130021, Jilin Province, China
| | - Lintao Bi
- Department of Hematology and Oncology, China-Japan Union Hospital of Jilin University, Changchun 130021, China.
| | - Lisha Li
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun 130021, Jilin Province, China.
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Lin QS, Wang Y, Lin MH, Li YX, Chen P. WITHDRAWN: The cerebrospinal fluid-contacting nucleus contributes to depression- like behaviors via MKP-1 in rats. J Affect Disord 2022:S0165-0327(22)01378-7. [PMID: 36521668 DOI: 10.1016/j.jad.2022.12.018] [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: 05/07/2022] [Revised: 12/03/2022] [Accepted: 12/06/2022] [Indexed: 12/14/2022]
Abstract
This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/our-business/policies/article-withdrawal
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Affiliation(s)
- Qing-Song Lin
- Department of Neurosurgery, Neurosurgery Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou 350005, Fujian, China; Department of Neurosurgery, Binhai Branch of National Regional Medical Center, The First Affiliated Hospital, Fujian Medical University, Fuzhou 350209, Fujian, China; Fujian Provincial Institutes of Brain Disorders and Brain Sciences, First Affiliated Hospital, Fujian Medical University, Fuzhou 350005, Fujian, China; Fujian Provincial Clinical Research Center for Neurological Diseases, First Affiliated Hospital, Fujian Medical University, Fuzhou 350005, Fujian, China; Fujian Provincial Key Laboratory of Precision Medicine for Cancer, First Affiliated Hospital, Fujian Medical University, Fuzhou 350005, Fujian, China
| | - Ying Wang
- Department of Anesthesiology, Anesthesiology Research Institute, the First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian, China
| | | | - Yu-Xi Li
- Fujian Medical University, China
| | - Ping Chen
- Department of Anesthesiology, Anesthesiology Research Institute, the First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian, China.
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Sui X, Mao X, Wu G, Meng Q. DUSP1 promotes muscle atrophy by inhibiting myocyte differentiation in cachectic patients. Front Oncol 2022; 12:1040112. [PMID: 36387242 PMCID: PMC9663480 DOI: 10.3389/fonc.2022.1040112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 10/03/2022] [Indexed: 01/07/2024] Open
Abstract
BACKGROUND Skeletal muscle atrophy is the major hallmark of cancer cachexia. The mechanisms underlying muscle wasting remain elusive in cachectic patients. Our research seeks to identify differentially expressed genes (DEGs) between non-cachectic and cachectic cancer patients and elucidate their functions. METHODS We screened the DEGs of skeletal muscle between patients with and without cachexia from microarray data. Biological function of DEGs is analyzed through gene enrichment analysis, while an interaction network is constructed to visualize how genes are related. A Spearman's correlation analysis demonstrated the clinical significance of DUSP1 related to cancer cachexia. Skeletal muscle samples were collected and histomorphology studies were conducted. Function of DUSP1 on myogenesis was clarified by qPCR, western blotting, and immunofluorescence. RESULTS We screened 324 DEGs in skeletal muscle from patients with and without cachexia. The results of the gene enrichment analysis indicated that inflammatory cytokines and immune responses contribute significantly to the pathological condition of cachexia. DUSP1 was one of the key genes in the regulating network. DUSP1 protein and mRNA levels were increased significantly in skeletal muscle tissues from patients with cancer cachexia. DUSP1 expression in cachectic group was found to have negative correlation with SMA, prealbumin and BMI and positive correlation with TNFα, IL6 and weight loss. Significant changes of myogenesis related genes were observed in myocyte after DUSP1 was overexpressed and knocked down. CONCLUSION In skeletal muscle of cachectic patients, DUSP1 expression was observed to be higher and thus DUSP1 promote muscle atrophy by inhibiting myogenesis. DUSP1 is expected to be a specific target in cancer cachexia for preventing and treating muscle atrophy.
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Affiliation(s)
| | - Xiangyu Mao
- Department of General Surgery, Zhongshan Hospital of Fudan University, Shanghai, China
| | - Guohao Wu
- Department of General Surgery, Zhongshan Hospital of Fudan University, Shanghai, China
| | - Qingyang Meng
- Department of General Surgery, Zhongshan Hospital of Fudan University, Shanghai, China
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Liu JX, Huang T, Xie D, Yu Q. Bves maintains vascular smooth muscle cell contractile phenotype and protects against transplant vasculopathy via Dusp1-dependent p38MAPK and ERK1/2 signaling. Atherosclerosis 2022; 357:20-32. [PMID: 36037759 DOI: 10.1016/j.atherosclerosis.2022.08.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 07/26/2022] [Accepted: 08/10/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND AIMS Vascular smooth muscle cell (VSMC) plasticity is tightly associated with the pathological process of vasculopathy. Blood vessel epicardial substance (Bves) has emerged as an important regulator of intracardiac vasculogenesis and organ homeostasis. However, the involvement and role of Bves in VSMC plasticity and neointimal lesion development remain unclear. METHODS We used an in vivo rat model of graft arteriosclerosis and in vitro PDGF-treated VSMCs and identified the novel VSMC contractile phenotype-related gene Bves using a transcriptomic analysis and literature search. In vitro knockdown and overexpression approaches were used to investigate the mechanisms underlying VSMC phenotypic plasticity. In vivo, VSMC-specific Bves overexpression in rat aortic grafts was generated to assess the physiological function of Bves in neointimal lesion development. RESULTS Here, we found that Bves expression was negatively regulated in aortic allografts in vivo and PDGF-treated VSMCs in vitro. The genetic knockdown of Bves dramatically inhibited, whereas Bves overexpression markedly promoted, the VSMC contractile phenotype. Furthermore, RNA sequencing unraveled a positive correlation between Bves and dual-specificity protein phosphatase 1 (Dusp1) expression in VSMCs. We found that Bves knockdown restrained Dusp1 expression, but enhanced p38MAPK and ERK1/2 activation, resulting in the loss of the VSMC contractile phenotype. In vivo, an analysis of a rat graft model confirmed that VSMC-specific Bves and Dusp1 overexpression in aortic allografts significantly attenuated neointimal lesion formation. CONCLUSIONS Bves maintains the VSMC contractile phenotype through Dusp1-dependent p38MAPK and ERK1/2 signaling, and protects against neointimal formation, underscoring the important role of Bves in preventing transplant vasculopathy.
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Affiliation(s)
- Jin-Xin Liu
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tong Huang
- The Eight Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Dawei Xie
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Qihong Yu
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Clinical Medical Research Center of Hepatic Surgery at Hubei Province, Wuhan, China.
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A Risk Model of Eight Immune-Related Genes Predicting Prognostic Response to Immune Therapies for Gastric Cancer. Genes (Basel) 2022; 13:genes13050720. [PMID: 35627105 PMCID: PMC9141964 DOI: 10.3390/genes13050720] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 04/17/2022] [Accepted: 04/18/2022] [Indexed: 12/11/2022] Open
Abstract
Immune checkpoint inhibitor (ICI) treatment is considered as an innovative approach for cancers. Since not every patient responded well to ICI therapy, it is imperative to screen out novel signatures to predict prognosis. Based on 407 gastric cancer (GC) samples retrieved from The Cancer Genome Atlas (TCGA), 36 immune-related hub genes were identified by weighted gene co-expression network analysis (WGCNA), and eight of them (RNASE2, CGB5, INHBE, DUSP1, APOA1, CD36, PTGER3, CTLA4) were used to formulate the Cox regression model. The obtained risk score was proven to be significantly correlated with overall survival (OS), consistent with the consequence of the Gene Expression Omnibus (GEO) cohort (n = 433). Then, the relationship between the risk score and clinical, molecular and immune characteristics was further investigated. Results showed that the low-risk subgroup exhibited higher mutation rate, more M1 macrophages, CD8+ and CD4+ T cells infiltrating, more active MHC-I, and bias to “IFN-γ Dominant” immune type, which is consistent with our current understanding of tumor prognostic risk. Furthermore, it is suggested that our model can accurately predict 1-, 2-, and 3-year OS of GC patients, and that it was superior to other canonical models, such as TIDE and TIS. Thus, these eight genes are probably considered as potential signatures to predict prognosis and to distinguish patient benefit from ICI, serving as a guiding individualized immunotherapy.
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DUSP-1 Induced by PGE 2 and PGE 1 Attenuates IL-1β-Activated MAPK Signaling, Leading to Suppression of NGF Expression in Human Intervertebral Disc Cells. Int J Mol Sci 2021; 23:ijms23010371. [PMID: 35008797 PMCID: PMC8745672 DOI: 10.3390/ijms23010371] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 12/25/2021] [Accepted: 12/28/2021] [Indexed: 12/20/2022] Open
Abstract
The molecular mechanism of discogenic low back pain (LBP) involves nonphysiological nerve invasion into a degenerated intervertebral disc (IVD), induced by nerve growth factor (NGF). Selective cyclooxygenase (COX)-2 inhibitors are mainly used in the treatment of LBP, and act by suppressing the inflammatory mediator prostaglandin E2 (PGE2), which is induced by inflammatory stimuli, such as interleukin-1β (IL-1β). However, in our previous in vitro study using cultured human IVD cells, we demonstrated that the induction of NGF by IL-1β is augmented by a selective COX-2 inhibitor, and that PGE2 and PGE1 suppress NGF expression. Therefore, in this study, to elucidate the mechanism of NGF suppression by PGE2 and PGE1, we focused on mitogen-activated protein kinases (MAPKs) and its phosphatase, dual-specificity phosphatase (DUSP)-1. IL-1β-induced NGF expression was altered in human IVD cells by MAPK pathway inhibitors. PGE2 and PGE1 enhanced IL-1β-induced DUSP-1 expression, and suppressed the phosphorylation of MAPKs in human IVD cells. In DUSP-1 knockdown cells established using small interfering RNA, IL-1β-induced phosphorylation of MAPKs was enhanced and prolonged, and NGF expression was significantly enhanced. These results suggest that PGE2 and PGE1 suppress IL-1β-induced NGF expression by suppression of the MAPK signaling pathway, accompanied by increased DUSP-1 expression.
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Sellers J, Brooks A, Fernando S, Westenberger G, Junkins S, Smith S, Min K, Lawan A. Fasting-Induced Upregulation of MKP-1 Modulates the Hepatic Response to Feeding. Nutrients 2021; 13:nu13113941. [PMID: 34836195 PMCID: PMC8619756 DOI: 10.3390/nu13113941] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 10/27/2021] [Accepted: 11/02/2021] [Indexed: 12/14/2022] Open
Abstract
The liver plays a key role in whole-body, glucose and lipid homeostasis. Nutritional signals in response to fasting and refeeding regulate hepatic lipid synthesis. It is established that activation of mitogen-activated protein kinase (MAPK) phosphatase-1 (MKP-1) in response to overnutrition regulates MAPK-dependent pathways that control lipid metabolism in the liver. However, the regulatory mechanisms and the impact of the actions of MKP-1 in hepatic response to fasting remains unclear. We investigated the effect of fasting on the expression of MKP-1 and the impact on hepatic response to feeding. In this study, we demonstrate that fasting stress induced upregulation of hepatic MKP-1 protein levels with a corresponding downregulation of p38 MAPK and JNK phosphorylation in mouse livers. We found that MKP-1-deficient livers are resistant to fasting-induced hepatic steatosis. Hepatic MKP-1 deficiency impaired fasting-induced changes in the levels of key transcription factors involved in the regulation of fatty acid and cholesterol metabolism including Srebf2 and Srebf1c. Mechanistically, MKP-1 negatively regulates Srebf2 expression by attenuating p38 MAPK pathway, suggesting its contribution to the metabolic effects of MKP-1 deficiency in the fasting liver. These findings support the hypothesis that upregulation of MKP-1 is a physiological relevant response and might be beneficial in hepatic lipid utilization during fasting in the liver. Collectively, these data unravel some of the complexity and tissue specific interaction of MKP-1 action in response to changes in nutritional cues, including fasting and excess nutrients
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Affiliation(s)
- Jacob Sellers
- Department of Biological Sciences, University of Alabama in Huntsville, Huntsville, AL 35899, USA; (J.S.); (A.B.); (S.F.); (G.W.); (S.J.); (S.S.)
| | - Abigail Brooks
- Department of Biological Sciences, University of Alabama in Huntsville, Huntsville, AL 35899, USA; (J.S.); (A.B.); (S.F.); (G.W.); (S.J.); (S.S.)
| | - Savanie Fernando
- Department of Biological Sciences, University of Alabama in Huntsville, Huntsville, AL 35899, USA; (J.S.); (A.B.); (S.F.); (G.W.); (S.J.); (S.S.)
| | - Gabrielle Westenberger
- Department of Biological Sciences, University of Alabama in Huntsville, Huntsville, AL 35899, USA; (J.S.); (A.B.); (S.F.); (G.W.); (S.J.); (S.S.)
| | - Sadie Junkins
- Department of Biological Sciences, University of Alabama in Huntsville, Huntsville, AL 35899, USA; (J.S.); (A.B.); (S.F.); (G.W.); (S.J.); (S.S.)
| | - Shauri Smith
- Department of Biological Sciences, University of Alabama in Huntsville, Huntsville, AL 35899, USA; (J.S.); (A.B.); (S.F.); (G.W.); (S.J.); (S.S.)
| | - Kisuk Min
- Department of Kinesiology, University of Texas at El Paso, El Paso, TX 79968, USA;
| | - Ahmed Lawan
- Department of Biological Sciences, University of Alabama in Huntsville, Huntsville, AL 35899, USA; (J.S.); (A.B.); (S.F.); (G.W.); (S.J.); (S.S.)
- Correspondence: ; Tel.: +1-256-824-6264
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12
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Kumar GS, Page R, Peti W. 1H, 15N and 13C sequence specific backbone assignment of the MAP kinase binding domain of the dual specificity phosphatase 1 and its interaction with the MAPK p38. BIOMOLECULAR NMR ASSIGNMENTS 2021; 15:243-248. [PMID: 34101142 DOI: 10.1007/s12104-021-10012-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 02/24/2021] [Indexed: 06/12/2023]
Abstract
The sequence-specific backbone assignment of the mitogen-activated protein kinase (MAPK) binding domain of the dual-specificity phosphatase 1 (DUSP1) has been accomplished using a uniformly [13C, 15N]-labeled protein. These assignments will facilitate further studies of DUSP1 in the presence of inhibitors/ligands to target MAPK associated diseases and provide further insights into the function of dual-specificity phosphatase 1 in MAPK regulation.
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Affiliation(s)
- Ganesan Senthil Kumar
- Department of Molecular Biology and Biophysics, University of Connecticut Health Center, Farmington, CT, USA.
- Integrative Structural Biology Laboratory, National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi, 110067, India.
| | - Rebecca Page
- Department of Cell Biology, University of Connecticut Health Center, Farmington, CT, USA
| | - Wolfgang Peti
- Department of Molecular Biology and Biophysics, University of Connecticut Health Center, Farmington, CT, USA
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13
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Bermúdez-Muñoz JM, Celaya AM, García-Mato Á, Muñoz-Espín D, Rodríguez-de la Rosa L, Serrano M, Varela-Nieto I. Dual-Specificity Phosphatase 1 (DUSP1) Has a Central Role in Redox Homeostasis and Inflammation in the Mouse Cochlea. Antioxidants (Basel) 2021; 10:1351. [PMID: 34572983 PMCID: PMC8467085 DOI: 10.3390/antiox10091351] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 08/16/2021] [Accepted: 08/23/2021] [Indexed: 12/13/2022] Open
Abstract
Stress-activated protein kinases (SAPK) are associated with sensorineural hearing loss (SNHL) of multiple etiologies. Their activity is tightly regulated by dual-specificity phosphatase 1 (DUSP1), whose loss of function leads to sustained SAPK activation. Dusp1 gene knockout in mice accelerates SNHL progression and triggers inflammation, redox imbalance and hair cell (HC) death. To better understand the link between inflammation and redox imbalance, we analyzed the cochlear transcriptome in Dusp1-/- mice. RNA sequencing analysis (GSE176114) indicated that Dusp1-/- cochleae can be defined by a distinct profile of key cellular expression programs, including genes of the inflammatory response and glutathione (GSH) metabolism. To dissociate the two components, we treated Dusp1-/- mice with N-acetylcysteine, and hearing was followed-up longitudinally by auditory brainstem response recordings. A combination of immunofluorescence, Western blotting, enzymatic activity, GSH levels measurements and RT-qPCR techniques were used. N-acetylcysteine treatment delayed the onset of SNHL and mitigated cochlear damage, with fewer TUNEL+ HC and lower numbers of spiral ganglion neurons with p-H2AX foci. N-acetylcysteine not only improved the redox balance in Dusp1-/- mice but also inhibited cytokine production and reduced macrophage recruitment. Our data point to a critical role for DUSP1 in controlling the cross-talk between oxidative stress and inflammation.
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Affiliation(s)
- Jose M. Bermúdez-Muñoz
- Institute for Biomedical Research “Alberto Sols”, Spanish National Research Council-Autonomous University of Madrid (CSIC-UAM), 28029 Madrid, Spain; (A.M.C.); (Á.G.-M.); (L.R.-d.l.R.)
- Rare Diseases Networking Biomedical Research Centre (CIBERER), CIBER, Carlos III Institute of Health, 28029 Madrid, Spain
| | - Adelaida M. Celaya
- Institute for Biomedical Research “Alberto Sols”, Spanish National Research Council-Autonomous University of Madrid (CSIC-UAM), 28029 Madrid, Spain; (A.M.C.); (Á.G.-M.); (L.R.-d.l.R.)
- Rare Diseases Networking Biomedical Research Centre (CIBERER), CIBER, Carlos III Institute of Health, 28029 Madrid, Spain
| | - Ángela García-Mato
- Institute for Biomedical Research “Alberto Sols”, Spanish National Research Council-Autonomous University of Madrid (CSIC-UAM), 28029 Madrid, Spain; (A.M.C.); (Á.G.-M.); (L.R.-d.l.R.)
- Rare Diseases Networking Biomedical Research Centre (CIBERER), CIBER, Carlos III Institute of Health, 28029 Madrid, Spain
| | - Daniel Muñoz-Espín
- CRUK Cambridge Centre Early Detection Programme, Department of Oncology, University of Cambridge, Hutchison/MRC Research Centre, Cambridge CB2 0XZ, UK;
| | - Lourdes Rodríguez-de la Rosa
- Institute for Biomedical Research “Alberto Sols”, Spanish National Research Council-Autonomous University of Madrid (CSIC-UAM), 28029 Madrid, Spain; (A.M.C.); (Á.G.-M.); (L.R.-d.l.R.)
- Rare Diseases Networking Biomedical Research Centre (CIBERER), CIBER, Carlos III Institute of Health, 28029 Madrid, Spain
- Hospital La Paz Institute for Health Research (IdiPAZ), 28029 Madrid, Spain
| | - Manuel Serrano
- Institute for Research in Biomedicine, Barcelona Institute of Science and Technology (BIST), 08028 Barcelona, Spain;
- Catalan Institution for Research and Advanced Studies (ICREA), 08010 Barcelona, Spain
| | - Isabel Varela-Nieto
- Institute for Biomedical Research “Alberto Sols”, Spanish National Research Council-Autonomous University of Madrid (CSIC-UAM), 28029 Madrid, Spain; (A.M.C.); (Á.G.-M.); (L.R.-d.l.R.)
- Rare Diseases Networking Biomedical Research Centre (CIBERER), CIBER, Carlos III Institute of Health, 28029 Madrid, Spain
- Hospital La Paz Institute for Health Research (IdiPAZ), 28029 Madrid, Spain
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14
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The Rab5-Rab11 Endosomal Pathway is Required for BDNF-Induced CREB Transcriptional Regulation in Hippocampal Neurons. J Neurosci 2020; 40:8042-8054. [PMID: 32928890 DOI: 10.1523/jneurosci.2063-19.2020] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Revised: 09/02/2020] [Accepted: 09/08/2020] [Indexed: 12/20/2022] Open
Abstract
Brain-derived neurotrophic factor (BDNF) is a key regulator of the morphology and connectivity of central neurons. We have previously shown that BDNF/TrkB signaling regulates the activity and mobility of the GTPases Rab5 and Rab11, which in turn determine the postendocytic sorting of signaling TrkB receptors. Moreover, decreased Rab5 or Rab11 activity inhibits BDNF-induced dendritic branching. Whether Rab5 or Rab11 activity is important for local events only or for regulating nuclear signaling and gene expression is unknown. Here, we investigated, in rat hippocampal neuronal cultures derived from embryos of unknown sex, whether BDNF-induced signaling cascades are altered when early and recycling endosomes are disrupted by the expression of dominant-negative mutants of Rab5 and Rab11. The activity of both Rab5 and Rab11 was required for sustained activity of Erk1/2 and nuclear CREB phosphorylation, and increased transcription of a BDNF-dependent program of gene expression containing CRE binding sites, which includes activity-regulated genes such as Arc, Dusp1, c-fos, Egr1, and Egr2, and growth and survival genes such as Atf3 and Gem Based on our results, we propose that early and recycling endosomes provide a platform for the integration of neurotrophic signaling from the plasma membrane to the nucleus in neurons, and that this mechanism is likely to regulate neuronal plasticity and survival.SIGNIFICANCE STATEMENT BDNF is a neurotrophic factor that regulates plastic changes in the brain, including dendritic growth. The cellular and molecular mechanisms underlying this process are not completely understood. Our results uncover the cellular requirements that central neurons possess to integrate the plasma membrane into nuclear signaling in neurons. Our results indicate that the endosomal pathway is required for the signaling cascade initiated by BDNF and its receptors at the plasma membrane to modulate BDNF-dependent gene expression and neuronal dendritic growth mediated by the CREB transcription factor. CREB is a key transcription factor regulating circuit development and learning and memory.
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15
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Wu H, Ming W, Tan J, Lu Q, Mulmi Shrestha S, Li N, Wu G, Zhang Z, Shi R. Role of MKP-5-p38/MAPK pathway in Clopidogrel-induced gastric mucosal epithelial cells apoptosis and tight junction dysfunction. Am J Transl Res 2020; 12:1741-1753. [PMID: 32509173 PMCID: PMC7269986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 04/21/2020] [Indexed: 06/11/2023]
Abstract
Bleeding and delayed healing of gastric ulcer are well-recognized in patients following Clopidorgrel treatment. Our previous studies have shown that endoplasmic reticulum stress (ER) is involved in Clopidogrel-induced gastric mucosal damage through activating p38 mitogen-activated protein kinases (MAPK) pathway. This present study aims to further investigate the role of MAP kinase phosphatase 5 (MKP-5), a MKP known to dephosphorylate and inactivate p38/MAPK, in Clopidogrel-induced gastric mucosal injury and the underlying mechanisms. It shows that MKP-5 is down-regulated at both mRNA and protein levels in the gastric mucosa from bleeding patients who took Clopidogrel over one year. In vitro study using human gastric epithelial cell line GES-1 demonstrates that exposure to Clopidorgrel (1.0-2.0 mM) increases phosphorylation of p38/MAPK and decreases MKP-5 expression simultaneously. Overexpression of MKP-5 promotes GES-1 cell proliferation and reduces apoptosis following Clopidogrel exposure. Interestingly, overexpression of MKP-5 also attenuates Clopidorgrel-induced tight junction (TJ) destruction by down-regulating expression of ER stress-related protein C/EBP homologous protein (CHOP) and tribbles pseudokinase 3 (TRIB3). These three effects, increased proliferation, reduced apoptosis and attenuated TJ destruction, are regulated through inhibited phosphorylation of p38/MAPK signaling pathway. We conclude that MKP-5 is down-regulated in Clopidogrel-induced gastric mucosa injury in vivo and in vitro via phosphorylation and activation of p38/MAPK signaling pathway. Overexpression of MKP-5 reverses Clopidogrel-induced gastric mucosal injury. These findings imply that MKP-5 may be a potential therapeutic target in Clopidogrel-induced gastric mucosal injury and bleeding.
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Affiliation(s)
- Hailu Wu
- Medical School of Southeast UniversityNanjing 210009, People’s Republic of China
- Department of Gastroenterology, Zhongda Hospital Affiliated to Southeast UniversityNanjing 210009, People’s Republic of China
| | - Wei Ming
- Medical School of Southeast UniversityNanjing 210009, People’s Republic of China
- Department of Gastroenterology, Zhongda Hospital Affiliated to Southeast UniversityNanjing 210009, People’s Republic of China
| | - Jiacheng Tan
- Department of Gastroenterology, Zhongda Hospital Affiliated to Southeast UniversityNanjing 210009, People’s Republic of China
| | - Qin Lu
- Department of Gastroenterology, Zhongda Hospital Affiliated to Southeast UniversityNanjing 210009, People’s Republic of China
| | | | - Nan Li
- Department of Gastroenterology, Zhongda Hospital Affiliated to Southeast UniversityNanjing 210009, People’s Republic of China
| | - Guoqiu Wu
- Center of Clinical Laboratory Medicine, Zhongda Hospital, Southeast UniversityNanjing 210009, People’s Republic of China
| | - Zhenyu Zhang
- Division of Gastroenterology, Department of Medicine, Nanjing Medical University Nanjing First HospitalNanjing 210009, People’s Republic of China
| | - Ruihua Shi
- Department of Gastroenterology, Zhongda Hospital Affiliated to Southeast UniversityNanjing 210009, People’s Republic of China
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16
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Choudhary E, Bullen CK, Goel R, Singh AK, Praharaj M, Thakur P, Dhiman R, Bishai WR, Agarwal N. Relative and Quantitative Phosphoproteome Analysis of Macrophages in Response to Infection by Virulent and Avirulent Mycobacteria Reveals a Distinct Role of the Cytosolic RNA Sensor RIG-I in Mycobacterium tuberculosis Pathogenesis. J Proteome Res 2020; 19:2316-2336. [PMID: 32407090 DOI: 10.1021/acs.jproteome.9b00895] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Comparative phosphoproteomics of Mycobacterium tuberculosis (Mtb)- and Mycobacterium bovis BCG (BCG)-infected macrophages could be instrumental in understanding the characteristic post-translational modifications of host proteins and their subsequent involvement in determining Mtb pathogenesis. To identify proteins acquiring a distinct phosphorylation status, herein, we compared the phosphorylation profile of macrophages upon exposure to Mtb and BCG. We observed a significant dephosphorylation of proteins following Mtb infection relative to those with uninfected or BCG-infected cells. A comprehensive tandem mass tag mass spectrometry (MS) approach detected ∼10% phosphosites on a variety of host proteins that are modulated in response to infection. Interestingly, the innate immune-enhancing interferon (IFN)-stimulated genes were identified as a class of proteins differentially phosphorylated during infection, including the cytosolic RNA sensor RIG-I, which has been implicated in the immune response to bacterial infection. We show that Mtb infection results in the activation of RIG-I in primary human macrophages. Studies using RIG-I knockout macrophages reveal that the Mtb-mediated activation of RIG-I promotes IFN-β, IL-1α, and IL-1β levels, dampens autophagy, and facilitates intracellular Mtb survival. To our knowledge, this is the first study providing exhaustive information on relative and quantitative changes in the global phosphoproteome profile of host macrophages that can be further explored in designing novel anti-TB drug targets. The peptide identification and MS/MS spectra have been deposited to the ProteomeXchange Consortium via the PRIDE partner repository with the dataset identifier PXD013171.
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Affiliation(s)
- Eira Choudhary
- Laboratory of Mycobacterial Genetics, Translational Health Science and Technology Institute, NCR Biotech Science Cluster, Faridabad 121001, Haryana, India.,Symbiosis School of Biomedical Sciences, Symbiosis International (Deemed University), Pune 412115, Maharashtra, India
| | - C Korin Bullen
- Center for Tuberculosis Research, Johns Hopkins University, Baltimore, Maryland 21287, United States
| | - Renu Goel
- Laboratory of Mycobacterial Genetics, Translational Health Science and Technology Institute, NCR Biotech Science Cluster, Faridabad 121001, Haryana, India
| | - Alok Kumar Singh
- Center for Tuberculosis Research, Johns Hopkins University, Baltimore, Maryland 21287, United States
| | - Monali Praharaj
- Center for Tuberculosis Research, Johns Hopkins University, Baltimore, Maryland 21287, United States
| | - Preeti Thakur
- Center for Tuberculosis Research, Johns Hopkins University, Baltimore, Maryland 21287, United States
| | - Rohan Dhiman
- Laboratory of Mycobacterial Immunology, Department of Life Science, National Institute of Technology, Rourkela 769008, Odisha, India
| | - William R Bishai
- Center for Tuberculosis Research, Johns Hopkins University, Baltimore, Maryland 21287, United States
| | - Nisheeth Agarwal
- Laboratory of Mycobacterial Genetics, Translational Health Science and Technology Institute, NCR Biotech Science Cluster, Faridabad 121001, Haryana, India
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17
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Bennett AM, Lawan A. Improving Obesity and Insulin Resistance by Targeting Skeletal Muscle MKP-1. JOURNAL OF CELLULAR SIGNALING 2020; 1:160-168. [PMID: 33179019 PMCID: PMC7654974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Obesity has reached a global epidemic and it predisposes to the development of insulin resistance, type 2 diabetes and related metabolic diseases. Current interventions against obesity and/or type 2 diabetes such as calorie restriction, exercise, genetic manipulations or established pharmacological treatments have not been successful for many patients with obesity and/or type 2 diabetes. There is an urgent need for new strategies to treat insulin resistance, T2D and obesity. Increased activity of stress-responsive pathways has been linked to the pathogenesis of insulin resistance in obesity. In this commentary, we argue that chronic upregulation of MKP-1 in skeletal muscle is part of a stress response that contributes to the development of insulin resistance, T2D and obesity. Therefore, inhibition of MKP-1 in skeletal muscle is a potential strategy for the treatment of T2D and obesity. We highlight therapeutic strategies for potential targeting of MKP-1 in skeletal muscle for the treatment of metabolic diseases as well as other diseases of skeletal muscle.
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Affiliation(s)
- Anton M. Bennett
- Department of Pharmacology, Yale University School of Medicine, New Haven, Connecticut 06520, USA,Comparative Medicine, Yale University School of Medicine, New Haven, Connecticut 06520, USA,Program in Integrative Cell Signaling and Neurobiology of Metabolism, Yale University School of Medicine, New Haven, Connecticut 06520, USA
| | - Ahmed Lawan
- Department of Biological Sciences, University of Alabama in Huntsville, Huntsville, Alabama 35899, USA,Correspondence should be addressed to Ahmed Lawan;
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18
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Jiao F, Wang Y, Zhang W, Zhang H, Chen Q, Wang L, Shi C, Gong Z. AGK2 Alleviates Lipopolysaccharide Induced Neuroinflammation through Regulation of Mitogen-Activated Protein Kinase Phosphatase-1. J Neuroimmune Pharmacol 2019; 15:196-208. [PMID: 31786712 DOI: 10.1007/s11481-019-09890-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 10/21/2019] [Indexed: 01/31/2023]
Abstract
Neuroinflammation is associated with the progression of multiple neurological diseases. Many studies show that SIRT2 involves in multiple inflammatory processes. While, the mechanisms remain unclear. The purpose of this study was to explore the effect of SIRT2 inhibitor AGK2 on inflammatory responses and MAPK signaling pathways in LPS activated microglia in vitro and in vivo. The effect of AGK2 on cell viability of BV2 microglial cells was detected by CCK-8 assay. The expression of inflammatory cytokine iNOS was analyzed by western blotting and immunofluorescence. The mRNA expressions of iNOS, TNF-α, and IL-1β were detected by real-time polymerase chain reaction (RT-PCR). The SIRT2, phospho-P38, P38, phospho-JNK, JNK, phospho-ERK, ERK, α-tubulin, and acetyl-α-tubulin were analyzed by western blotting respectively. The interaction between SIRT2 and MKP-1 was measured by Co-immunoprecipitation (Co-IP) assay. Double immunofluorescent staining was performed to detect the expressions of CD11b and iNOS or SIRT2 in brain tissues. We found that AGK2 could suppress LPS-induced inflammatory cytokines (iNOS, TNF-α, and IL-1β) expression levels in BV2 microglial cells. Moreover, it could effectively reduce the expression of SIRT2 and increase the acetylation of α-tubulin in LPS activated BV2 microglial cells and LPS induced mice neuroinflammation. In addition, our results showed that AGK2 could reduce the increase of phosphorylation p38, JNK, and ERK after LPS challenge. Co-IP results showed that there was no direct interaction between MKP-1 and SIRT2. However, AGK2 by inhibition of SIRT2 could increase the expression of MKP-1. Furthermore, AGK2 could inhibit the activation of BV2 microglia and expression of iNOS and SIRT2 in LPS treated mice brain tissue. Taken together, our results suggested that AGK2 might alleviate lipopolysaccharide induced neuroinflammation through regulation of mitogen-activated protein kinase phosphatase-1. Graphical abstract.
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Affiliation(s)
- Fangzhou Jiao
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Yao Wang
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Wenbin Zhang
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Haiyue Zhang
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Qian Chen
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Luwen Wang
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Chunxia Shi
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Zuojiong Gong
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China.
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19
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Han B, Yuan Y, Shi L, Li Y, Liu L, Sun D. Identification of single nucleotide polymorphisms of PIK3R1 and DUSP1 genes and their genetic associations with milk production traits in dairy cows. J Anim Sci Biotechnol 2019; 10:81. [PMID: 31709048 PMCID: PMC6833155 DOI: 10.1186/s40104-019-0392-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 09/06/2019] [Indexed: 01/15/2023] Open
Abstract
Background Previously, phosphoinositide-3-kinase regulatory subunit 1 (PIK3R1) and dual specificity phosphatase 1 (DUSP1) were identified as promising candidate genes for milk production traits due to their being differentially expressed between the dry period and the peak of lactation in livers of dairy cows. Hence, in this study, the single nucleotide polymorphisms (SNPs) of PIK3R1 and DUSP1 genes were identified and their genetic associations with milk yield, fat yield, fat percentage, protein yield, and protein percentage, were investigated using 1067 Chinese Holstein cows from 40 sire families. Results By re-sequencing the entire coding region and 2000 bp of the 5′ and 3′ flanking regions of the two genes, one SNP in the 5′ untranslated region (UTR), three in the 3′ UTR, and two in the 3′ flanking region of PIK3R1 were identified, and one in the 5′ flanking region, one in the 3′ UTR, and two in the 3′ flanking region of DUSP1 were found. Subsequent single-locus association analyses showed that five SNPs in PIK3R1, rs42590258, rs210389799, rs208819656, rs41255622, rs133655926, and rs211408208, and four SNPs in DUSP1, rs207593520, rs208460068, rs209154772, and rs210000760, were significantly associated with milk, fat and protein yields in the first or second lactation (P values ≤ 0.0001 and 0.0461). In addition, by the Haploview 4.2 software, the six and four SNPs in PIK3R1 and DUSP1 respectively formed one haplotype block, and the haplotype-based association analyses showed significant associations between their haplotype combinations and the milk traits in both two lactations (P values ≤ 0.0001 and 0.0364). One SNP, rs207593520(T/G), was predicted to alter the transcription factor binding sites (TFBSs) in the 5′ flanking region of DUSP1. Further, the dual-luciferase assay showed that the transcription activity of allele T in rs207593520 was significantly higher than that of allele G, suggesting the activation of transcriptional activity of DUSP1 gene by allele T of rs207593520. Thus, the rs207593520 SNP was highlighted as a potential causal mutation that should be further verified. Conclusions We demonstrated novel and significant genetic effects of the PIK3R1 and DUSP1 genes on milk production traits in dairy cows, and our findings provide information for use in dairy cattle breeding.
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Affiliation(s)
- Bo Han
- 1Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian District, Beijing, 100193 China
| | - Yuwei Yuan
- 1Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian District, Beijing, 100193 China
| | - Lijun Shi
- 1Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian District, Beijing, 100193 China
| | - Yanhua Li
- 1Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian District, Beijing, 100193 China.,Beijing Dairy Cattle Center, Beijing, 100192 China
| | - Lin Liu
- Beijing Dairy Cattle Center, Beijing, 100192 China
| | - Dongxiao Sun
- 1Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian District, Beijing, 100193 China
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20
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Ding T, Zhou Y, Long R, Chen C, Zhao J, Cui P, Guo M, Liang G, Xu L. DUSP8 phosphatase: structure, functions, expression regulation and the role in human diseases. Cell Biosci 2019; 9:70. [PMID: 31467668 PMCID: PMC6712826 DOI: 10.1186/s13578-019-0329-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 08/12/2019] [Indexed: 12/28/2022] Open
Abstract
Dual-specificity phosphatases (DUSPs) are a subset of protein tyrosine phosphatases (PTPs), many of which dephosphorylate the residues of phosphor-serine/threonine and phosphor-tyrosine on mitogen-activated protein kinases (MAPKs), and hence are also referred to as MAPK phosphatases (MKPs). Homologue of Vaccinia virus H1 phosphatase gene clone 5 (HVH-5), also known as DUSP8, is a unique member of the DUSPs family of phosphatases. Accumulating evidence has shown that DUSP8 plays an important role in phosphorylation-mediated signal transduction of MAPK signaling ranging from cell oxidative stress response, cell apoptosis and various human diseases. It is generally believed that DUSP8 exhibits significant dephosphorylation activity against JNK, however, with the deepening of research, plenty of new literature reports that DUSP8 also has effective dephosphorylation activity on p38 MAPK and ERKs, successfully affects the transduction of MAPKs pathway, indicating that DUSP8 presents a unknown diversity of DUSPs family on distinct corresponding dephosphorylated substrates in different biological events. Therefore, the in-depth study of DUSP8 not only throws a new light on the multi-biological function of DUSPs, but also is much valuable for the reveal of complex pathobiology of clinical diseases. In this review, we provide a detail overview of DUSP8 phosphatase structure, biological function and expression regulation, as well as its role in related clinical human diseases, which might be help for the understanding of biological function of DUSP8 and the development of prevention, diagnosis and therapeutics in related human diseases.
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Affiliation(s)
- Tao Ding
- Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, Zunyi, 563000 Guizhou China.,2Department of Immunology, Zunyi Medical University, Zunyi, 563000 Guizhou China
| | - Ya Zhou
- 3Department of Medical Physics, Zunyi Medical University, Zunyi, 563000 Guizhou China
| | - Runying Long
- Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, Zunyi, 563000 Guizhou China.,2Department of Immunology, Zunyi Medical University, Zunyi, 563000 Guizhou China
| | - Chao Chen
- Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, Zunyi, 563000 Guizhou China
| | - Juanjuan Zhao
- Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, Zunyi, 563000 Guizhou China
| | - Panpan Cui
- Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, Zunyi, 563000 Guizhou China
| | - Mengmeng Guo
- Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, Zunyi, 563000 Guizhou China
| | - Guiyou Liang
- 4Department of Cardiovascular Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, 550004 Guizhou China.,5Department of Cardiovascular Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000 Guizhou China
| | - Lin Xu
- Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, Zunyi, 563000 Guizhou China.,2Department of Immunology, Zunyi Medical University, Zunyi, 563000 Guizhou China
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Nunes-Xavier CE, Zaldumbide L, Aurtenetxe O, López-Almaraz R, López JI, Pulido R. Dual-Specificity Phosphatases in Neuroblastoma Cell Growth and Differentiation. Int J Mol Sci 2019; 20:ijms20051170. [PMID: 30866462 PMCID: PMC6429076 DOI: 10.3390/ijms20051170] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 03/01/2019] [Accepted: 03/01/2019] [Indexed: 12/19/2022] Open
Abstract
Dual-specificity phosphatases (DUSPs) are important regulators of neuronal cell growth and differentiation by targeting proteins essential to neuronal survival in signaling pathways, among which the MAP kinases (MAPKs) stand out. DUSPs include the MAPK phosphatases (MKPs), a family of enzymes that directly dephosphorylate MAPKs, as well as the small-size atypical DUSPs, a group of low molecular-weight enzymes which display more heterogeneous substrate specificity. Neuroblastoma (NB) is a malignancy intimately associated with the course of neuronal and neuroendocrine cell differentiation, and constitutes the source of more common extracranial solid pediatric tumors. Here, we review the current knowledge on the involvement of MKPs and small-size atypical DUSPs in NB cell growth and differentiation, and discuss the potential of DUSPs as predictive biomarkers and therapeutic targets in human NB.
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Affiliation(s)
- Caroline E Nunes-Xavier
- Biomarkers in Cancer Unit, Biocruces-Bizkaia Health Research Institute, Barakaldo, Bizkaia 48903, Spain.
- Department of Tumor Biology, Institute for Cancer Research, Oslo University Hospital HF Radiumhospitalet, Oslo 0424, Norway.
| | - Laura Zaldumbide
- Department of Pathology, Cruces University Hospital, University of the Basque Country (UPV/EHU), Barakaldo, Bizkaia 48903, Spain.
| | - Olaia Aurtenetxe
- Biomarkers in Cancer Unit, Biocruces-Bizkaia Health Research Institute, Barakaldo, Bizkaia 48903, Spain.
| | - Ricardo López-Almaraz
- Pediatric Oncology and Hematology, Cruces University Hospital, Barakaldo, Bizkaia 48903, Spain.
| | - José I López
- Biomarkers in Cancer Unit, Biocruces-Bizkaia Health Research Institute, Barakaldo, Bizkaia 48903, Spain.
- Department of Pathology, Cruces University Hospital, University of the Basque Country (UPV/EHU), Barakaldo, Bizkaia 48903, Spain.
| | - Rafael Pulido
- Biomarkers in Cancer Unit, Biocruces-Bizkaia Health Research Institute, Barakaldo, Bizkaia 48903, Spain.
- IKERBASQUE, Basque Foundation for Science, Bilbao 48011, Spain.
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22
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DUSP1 Is a Potential Marker of Chronic Inflammation in Arabs with Cardiovascular Diseases. DISEASE MARKERS 2019; 2018:9529621. [PMID: 30647800 PMCID: PMC6311887 DOI: 10.1155/2018/9529621] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 12/03/2018] [Indexed: 11/17/2022]
Abstract
Background Cardiovascular disease (CVD) risks persist in patients despite the use of conventional treatments. This might be due to chronic inflammation as reflected in epidemiological studies associating circulating low-grade inflammatory markers with CVD recurrent events. Here, we explored this potential link by assessing plasma dual-specificity phosphatase 1 (DUSP1) levels and comparing them to high-sensitivity CRP (hsCRP) and oxidized low-density lipoprotein (oxLDL) levels and their associations to conventional CVD risk factors in confirmed CVD patients. Methods Human adults with reported CVD (n = 207) and controls (n = 70) living in Kuwait were used in this study. Anthropometric and classical biochemical parameters were determined. Plasma levels of DUSP1, oxLDL, and hsCRP were measured using human enzyme-linked immunosorbent assay kits. Results DUSP1 and hsCRP plasma levels and their least square means were higher in CVD cases, while oxLDL plasma levels were lower (p < 0.05). Multivariate logistic regression analysis showed that DUSP1 and hsCRP are independently associated with CVD in the studied population, as reflected by 2-fold and 1.5-fold increased risks with increased levels of DUSP1 and hsCRP, respectively. In our study, DUSP1 levels were found to be associated with CVD despite statin treatment and diabetes status (p < 0.05), whereas hsCRP mainly correlated with obesity markers. Conclusions Circulating DUSP1 might be a predictor of chronic subclinical inflammation and residual risk in CVD patients, whereas our data suggest that the association between hsCRP and CVD is largely accounted for adiposity risk factors.
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Li J, Wang X, Ackerman WE, Batty AJ, Kirk SG, White WM, Wang X, Anastasakis D, Samavati L, Buhimschi I, Nelin LD, Hafner M, Liu Y. Dysregulation of Lipid Metabolism in Mkp-1 Deficient Mice during Gram-Negative Sepsis. Int J Mol Sci 2018; 19:ijms19123904. [PMID: 30563203 PMCID: PMC6321205 DOI: 10.3390/ijms19123904] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 11/27/2018] [Accepted: 11/30/2018] [Indexed: 02/07/2023] Open
Abstract
Mitogen-activated protein kinase phosphatase (Mkp)-1 exerts its anti-inflammatory activities during Gram-negative sepsis by deactivating p38 and c-Jun N-terminal kinase (JNK). We have previously shown that Mkp-1+/+ mice, but not Mkp-1-/- mice, exhibit hypertriglyceridemia during severe sepsis. However, the regulation of hepatic lipid stores and the underlying mechanism of lipid dysregulation during sepsis remains an enigma. To understand the molecular mechanism underlying the sepsis-associated metabolic changes and the role of Mkp-1 in the process, we infected Mkp-1+/+ and Mkp-1-/- mice with Escherichia coli i.v., and assessed the effects of Mkp-1 deficiency on tissue lipid contents. We also examined the global gene expression profile in the livers via RNA-seq. We found that in the absence of E. coli infection, Mkp-1 deficiency decreased liver triglyceride levels. Upon E. coli infection, Mkp-1+/+ mice, but not Mkp-1-/- mice, developed hepatocyte ballooning and increased lipid deposition in the livers. E. coli infection caused profound changes in the gene expression profile of a large number of proteins that regulate lipid metabolism in wildtype mice, while these changes were substantially disrupted in Mkp-1-/- mice. Interestingly, in Mkp-1+/+ mice E. coli infection resulted in downregulation of genes that facilitate fatty acid synthesis but upregulation of Cd36 and Dgat2, whose protein products mediate fatty acid uptake and triglyceride synthesis, respectively. Taken together, our studies indicate that sepsis leads to a substantial change in triglyceride metabolic gene expression programs and Mkp-1 plays an important role in this process.
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Affiliation(s)
- Jinhui Li
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, Columbus, OH 43215, USA.
| | - Xiantao Wang
- Laboratory of Muscle Stem Cells and Gene Regulation, National Institute of Arthritis and Musculoskeletal and Skin Disease, National Institutes of Health, Bethesda, MD 20892, USA.
| | - William E Ackerman
- Department of Obstetrics and Gynecology, The Ohio State University College of Medicine, Columbus, OH 43210, USA.
| | - Abel J Batty
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, Columbus, OH 43215, USA.
| | - Sean G Kirk
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, Columbus, OH 43215, USA.
| | - William M White
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, Columbus, OH 43215, USA.
| | - Xianxi Wang
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, Columbus, OH 43215, USA.
| | - Dimitrios Anastasakis
- Laboratory of Muscle Stem Cells and Gene Regulation, National Institute of Arthritis and Musculoskeletal and Skin Disease, National Institutes of Health, Bethesda, MD 20892, USA.
| | - Lobelia Samavati
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Detroit, MI 48201, USA.
| | - Irina Buhimschi
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, Columbus, OH 43215, USA.
- Department of Pediatrics, The Ohio State University College of Medicine, Columbus, Ohio 43205, USA.
| | - Leif D Nelin
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, Columbus, OH 43215, USA.
- Department of Pediatrics, The Ohio State University College of Medicine, Columbus, Ohio 43205, USA.
| | - Markus Hafner
- Laboratory of Muscle Stem Cells and Gene Regulation, National Institute of Arthritis and Musculoskeletal and Skin Disease, National Institutes of Health, Bethesda, MD 20892, USA.
| | - Yusen Liu
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, Columbus, OH 43215, USA.
- Department of Pediatrics, The Ohio State University College of Medicine, Columbus, Ohio 43205, USA.
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24
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Ishida K, Tomita H, Nakashima T, Hirata A, Tanaka T, Shibata T, Hara A. Current mouse models of oral squamous cell carcinoma: Genetic and chemically induced models. Oral Oncol 2018; 73:16-20. [PMID: 28939069 DOI: 10.1016/j.oraloncology.2017.07.028] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 07/11/2017] [Accepted: 07/28/2017] [Indexed: 01/11/2023]
Abstract
Oral squamous cell carcinoma (OSCC) patients have a low 5-year survival rate and poor prognosis. To improve survival and prognosis, the causes and processes involved in lesion development should be evaluated. For this purpose, the use of OSCC mouse models, such as chemically induced mouse models, genetically modified mouse models, and transplanted (xenograft) models, is crucial. These OSCC models exhibit both advantages and disadvantages when studying OSCC development and progression. Until a model resembling human OSCC is developed, both the advantages and disadvantages of each model should be carefully considered. In this review, we discuss OSCC mouse models and their use in cancer research worldwide.
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Affiliation(s)
- Kazuhisa Ishida
- Department of Tumor Pathology, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu 501-1194, Japan; Department of Oral Maxillofacial Surgery, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu 501-1194, Japan
| | - Hiroyuki Tomita
- Department of Tumor Pathology, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu 501-1194, Japan.
| | - Takayuki Nakashima
- Department of Tumor Pathology, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu 501-1194, Japan; Department of Oral Maxillofacial Surgery, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu 501-1194, Japan
| | - Akihiro Hirata
- Division of Animal Experiment, Life Science Research Center, Gifu University, 1-1 Yanagido, Gifu 501-1194, Japan
| | - Takauji Tanaka
- Department of Diagnostic Pathology (DDP) and Research Center of Diagnostic Pathology (RC-DiP), Gifu Municipal Hospital, 7-1 Kashima-cho, Gifu City, Gifu 500-8513, Japan
| | - Toshiyuki Shibata
- Department of Oral Maxillofacial Surgery, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu 501-1194, Japan
| | - Akira Hara
- Department of Tumor Pathology, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu 501-1194, Japan
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Kashima Y, Suzuki A, Liu Y, Hosokawa M, Matsunaga H, Shirai M, Arikawa K, Sugano S, Kohno T, Takeyama H, Tsuchihara K, Suzuki Y. Combinatory use of distinct single-cell RNA-seq analytical platforms reveals the heterogeneous transcriptome response. Sci Rep 2018; 8:3482. [PMID: 29472726 PMCID: PMC5823859 DOI: 10.1038/s41598-018-21161-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 01/25/2018] [Indexed: 12/11/2022] Open
Abstract
Single-cell RNA-seq is a powerful tool for revealing heterogeneity in cancer cells. However, each of the current single-cell RNA-seq platforms has inherent advantages and disadvantages. Here, we show that combining the different single-cell RNA-seq platforms can be an effective approach to obtaining complete information about expression differences and a sufficient cellular population to understand transcriptional heterogeneity in cancers. We demonstrate that it is possible to estimate missing expression information. We further demonstrate that even in the cases where precise information for an individual gene cannot be inferred, the activity of given transcriptional modules can be analyzed. Interestingly, we found that two distinct transcriptional modules, one associated with the Aurora kinase gene and the other with the DUSP gene, are aberrantly regulated in a minor population of cells and may thus contribute to the possible emergence of dormancy or eventual drug resistance within the population.
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Affiliation(s)
- Yukie Kashima
- Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba, 277-8562, Japan
| | - Ayako Suzuki
- Division of Translational Genomics, The Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Chiba, 277-8577, Japan
| | - Ying Liu
- Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba, 277-8562, Japan
| | - Masahito Hosokawa
- Department of Life Science and Medical Bioscience, Waseda University, Shinjuku-ku, Tokyo, 162-8480, Japan
| | - Hiroko Matsunaga
- Hitachi Ltd., Research & Development Group, Kokubunji-shi, Tokyo, 185-8601, Japan
| | - Masataka Shirai
- Hitachi Ltd., Research & Development Group, Kokubunji-shi, Tokyo, 185-8601, Japan
| | - Kohji Arikawa
- Hitachi Ltd., Research & Development Group, Kokubunji-shi, Tokyo, 185-8601, Japan
| | - Sumio Sugano
- Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba, 277-8562, Japan
| | - Takashi Kohno
- Division of Genome Biology, National Cancer Center Research Institute, Chuo-ku, Tokyo, 104-0045, Japan
| | - Haruko Takeyama
- Department of Life Science and Medical Bioscience, Waseda University, Shinjuku-ku, Tokyo, 162-8480, Japan
| | - Katsuya Tsuchihara
- Division of Translational Genomics, The Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Chiba, 277-8577, Japan
| | - Yutaka Suzuki
- Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba, 277-8562, Japan.
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Gu Y, Ma LJ, Bai XX, Jie J, Zhang XF, Chen D, Li XP. Mitogen-activated protein kinase phosphatase 1 protects PC12 cells from amyloid beta-induced neurotoxicity. Neural Regen Res 2018; 13:1842-1850. [PMID: 30136701 PMCID: PMC6128043 DOI: 10.4103/1673-5374.238621] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The mitogen-activated protein kinase (MAPK) signaling pathway plays an important role in the regulation of cell growth, proliferation, differentiation, transformation and death. Mitogen-activated protein kinase phosphatase 1 (MKP1) has an inhibitory effect on the p38MAPK and JNK pathways, but it is unknown whether it plays a role in Aβ-induced oxidative stress and neuronal inflammation. In this study, PC12 cells were infected with MKP1 shRNA, MKP1 lentivirus or control lentivirus for 12 hours, and then treated with 0.1, 1, 10 or 100 μM amyloid beta 42 (Aβ42). The cell survival rate was measured using the cell counting kit-8 assay. MKP1, tumor necrosis factor-alpha (TNF-α) and interleukin-1β (IL-1β) mRNA expression levels were analyzed using quantitative real time-polymerase chain reaction. MKP1 and phospho-c-Jun N-terminal kinase (JNK) expression levels were assessed using western blot assay. Reactive oxygen species (ROS) levels were detected using 2′,7′-dichlorofluorescein diacetate. Mitochondrial membrane potential was measured using flow cytometry. Superoxide dismutase activity and malondialdehyde levels were evaluated using the colorimetric method. Lactate dehydrogenase activity was measured using a microplate reader. Caspase-3 expression levels were assessed by enzyme-linked immunosorbent assay. Apoptosis was evaluated using the terminal deoxynucleotidyl transferase dUTP nick end labeling method. MKP1 overexpression inhibited Aβ-induced JNK phosphorylation and the increase in ROS levels. It also suppressed the Aβ-induced increase in TNF-α and IL-1β levels as well as apoptosis in PC12 cells. In contrast, MKP1 knockdown by RNA interference aggravated Aβ-induced oxidative stress, inflammation and cell damage in PC12 cells. Furthermore, the JNK-specific inhibitor SP600125 abolished this effect of MKP1 knockdown on Aβ-induced neurotoxicity. Collectively, these results show that MKP1 mitigates Aβ-induced apoptosis, oxidative stress and neuroinflammation by inhibiting the JNK signaling pathway, thereby playing a neuroprotective role.
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Affiliation(s)
- Yue Gu
- Department of Respiratory Medicine, the First Hospital of Jilin University, Changchun, Jilin Province, China
| | - Lian-Jun Ma
- Endoscopy Center, the China-Japan Hospital of Jilin University, Changchun, Jilin Province, China
| | - Xiao-Xue Bai
- Cadre's Wards, the First Hospital of Jilin University, Changchun, Jilin Province, China
| | - Jing Jie
- Department of Respiratory Medicine, the First Hospital of Jilin University, Changchun, Jilin Province, China
| | - Xiu-Fang Zhang
- Department of Respiratory Medicine, the First Hospital of Jilin University, Changchun, Jilin Province, China
| | - Dong Chen
- Department of Respiratory Medicine, the First Hospital of Jilin University, Changchun, Jilin Province, China
| | - Xiao-Ping Li
- Department of Pediatrics, the First Hospital of Jilin University, Changchun, Jilin Province, China
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27
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Min K, Lawan A, Bennett AM. Loss of MKP-5 promotes myofiber survival by activating STAT3/Bcl-2 signaling during regenerative myogenesis. Skelet Muscle 2017; 7:21. [PMID: 29047406 PMCID: PMC5648478 DOI: 10.1186/s13395-017-0137-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 09/25/2017] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND The mitogen-activated protein kinases (MAPKs) have been shown to be involved in regulating myofiber survival. In skeletal muscle, p38 MAPK and JNK are negatively regulated by MAPK phosphatase-5 (MKP-5). During muscle regeneration, MKP-5 is downregulated, thereby promoting p38 MAPK/JNK signaling, and subsequent repair of damaged muscle. Mice lacking MKP-5 expression exhibit enhanced regenerative myogenesis. However, the effect of MKP-5 on myofiber survival during regeneration is unclear. METHODS To investigate whether MKP-5 is involved in myofiber survival, skeletal muscle injury was induced by cardiotoxin injection, and the effects on apoptosis were assessed by TUNEL assay in wild type and MKP-5-deficient mice. The contribution of MKP-5 to apoptotic signaling and its link to this pathway through mitochondrial function were determined in regenerating skeletal muscle of MKP-5-deficient mice. RESULTS We found that loss of MKP-5 in skeletal muscle resulted in improved myofiber survival. In response to skeletal muscle injury, loss of MKP-5 decreased activation of the mitochondrial apoptotic pathway involving the signal transducer and activator of transcription 3 (STAT3) and increased expression of the anti-apoptotic transcription factor Bcl-2. Skeletal muscle of MKP-5-deficient mice also exhibited an improved anti-oxidant capacity as a result of increased expression of catalase further contributing to myofiber survival by attenuating oxidative damage. CONCLUSIONS Taken together, these findings suggest that MKP-5 coordinates skeletal muscle regeneration by regulating mitochondria-mediated apoptosis. MKP-5 negatively regulates apoptotic signaling, and during regeneration, MKP-5 downregulation contributes to the restoration of myofiber survival. Finally, these results suggest that MKP-5 inhibition may serve as an important therapeutic target for the preservation of skeletal muscle survival in degenerative muscle diseases.
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Affiliation(s)
- Kisuk Min
- Department of Pharmacology, Yale University, New Haven, CT, 06520, USA
| | - Ahmed Lawan
- Department of Pharmacology, Yale University, New Haven, CT, 06520, USA
| | - Anton M Bennett
- Department of Pharmacology, Yale University, New Haven, CT, 06520, USA. .,Program in Integrative Cell Signaling and Neurobiology of Metabolism, Yale University, New Haven, CT, 06520, USA.
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28
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Peng HZ, Yun Z, Wang W, Ma BA. Dual specificity phosphatase 1 has a protective role in osteoarthritis fibroblast‑like synoviocytes via inhibition of the MAPK signaling pathway. Mol Med Rep 2017; 16:8441-8447. [PMID: 28983624 DOI: 10.3892/mmr.2017.7617] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 08/10/2017] [Indexed: 11/06/2022] Open
Abstract
Increasing evidence indicates the important role of inflammation in the pathogenesis and progression of osteoarthritis (OA). Dual specificity phosphatase 1 (DUSP1), a negative regulator of the mitogen‑activated protein kinase (MAPK) signaling pathway, has anti‑inflammatory properties. In the present study, the expression of DUSP1 was investigated in human OA fibroblast‑like synoviocytes (FLSs), human normal FLSs and OA FLSs pretreated with dexamethasone at the mRNA and protein levels. Then, the activation of MAPK pathway proteins and the expression of matrix metalloproteinase‑13 (MMP‑13) and cyclooxygenase‑2 (COX‑2) were measured by western blot analysis in the three groups of cells. Dexamethasone induced the expression of DUSP1 and inhibited the activation of the MAPK pathway and reduced the expression of MMP‑13 and COX‑2 in OA FLSs. However, the role of DUSP1 remained unclear. To clarify this, the effects of overexpression of DUSP1 in OA FLSs were determined using a DUSP1‑overexpressing lentivirus. The results demonstrated that overexpression of DUSP1 in OA FLSs inhibited the activation of the MAPK pathway and expression of OA‑associated mediators. The findings of the present study indicate that DUSP1 has a protective role in OA FLSs and may be a potential target in the treatment of OA.
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Affiliation(s)
- Hua-Zhi Peng
- Department of Orthopaedics, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shanxi 710038, P.R. China
| | - Zhe Yun
- Department of Orthopaedics, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shanxi 710038, P.R. China
| | - Wei Wang
- Department of Orthopaedics, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shanxi 710038, P.R. China
| | - Bao-An Ma
- Department of Orthopaedics, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shanxi 710038, P.R. China
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Barthas F, Humo M, Gilsbach R, Waltisperger E, Karatas M, Leman S, Hein L, Belzung C, Boutillier AL, Barrot M, Yalcin I. Cingulate Overexpression of Mitogen-Activated Protein Kinase Phosphatase-1 as a Key Factor for Depression. Biol Psychiatry 2017; 82:370-379. [PMID: 28359564 DOI: 10.1016/j.biopsych.2017.01.019] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 01/11/2017] [Accepted: 01/31/2017] [Indexed: 12/30/2022]
Abstract
BACKGROUND Depression is frequently associated with chronic pain or chronic stress. Among cortical areas, the anterior cingulate cortex (ACC, areas 24a and 24b) appears to be important for mood disorders and constitutes a neuroanatomical substrate for investigating the underlying molecular mechanisms. The current work aimed at identifying ACC molecular factors subserving depression. METHODS Anxiodepressive-like behaviors in C57BL/6J male mice were induced by neuropathic pain, unpredictable chronic mild stress, and optogenetic ACC stimulation and were evaluated using novelty suppressed feeding, splash, and forced swim tests. ACC molecular changes in chronic pain-induced depression were uncovered through whole-genome expression analysis. Further mechanistic insights were provided by chromatin immunoprecipitation, Western blot, and immunostaining. The causal link between molecular changes and depression was studied using knockout, pharmacological antagonism, and local viral-mediated gene knockdown. RESULTS Under chronic pain-induced depression, gene expression changes in the ACC highlighted the overexpression of a regulator of the mitogen-activated protein kinase pathway, mitogen-activated protein kinase phosphatase-1 (MKP-1). This upregulation is associated with the presence of transcriptionally active chromatin marks (acetylation) at its proximal promoter region as well as increased cyclic adenosine monophosphate response element-mediated transcriptional activity and phosphorylation of cyclic adenosine monophosphate response element binding protein and activating transcription factor. MKP-1 overexpression is also observed with unpredictable chronic mild stress and repeated ACC optogenetic stimulation and is reversed by fluoxetine. A knockout, an antagonist, or a local silencing of MKP-1 attenuates depressive-like behaviors, pointing to an important role of this phosphatase in depression. CONCLUSIONS These data point to ACC MKP-1 as a key factor in the pathophysiology of depression and a potential target for treatment development.
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Affiliation(s)
- Florent Barthas
- Institute of Cellular and Integrative Neuroscience, National Centre for Scientific Research, Strasbourg; University of Strasbourg, Strasbourg
| | - Muris Humo
- Institute of Cellular and Integrative Neuroscience, National Centre for Scientific Research, Strasbourg; University of Strasbourg, Strasbourg
| | - Ralf Gilsbach
- Institute of Pharmacology and Toxicology, University of Freiburg, and BIOSS Centre for Biological Signalling Studies, Freiburg, Germany
| | - Elisabeth Waltisperger
- Institute of Cellular and Integrative Neuroscience, National Centre for Scientific Research, Strasbourg
| | - Meltem Karatas
- Institute of Cellular and Integrative Neuroscience, National Centre for Scientific Research, Strasbourg; University of Strasbourg, Strasbourg
| | - Samuel Leman
- University François Rabelais, French Institute of Health and Medical Research, Tours, France
| | - Lutz Hein
- Institute of Pharmacology and Toxicology, University of Freiburg, and BIOSS Centre for Biological Signalling Studies, Freiburg, Germany
| | - Catherine Belzung
- University François Rabelais, French Institute of Health and Medical Research, Tours, France
| | - Anne-Laurence Boutillier
- Laboratory of Cognitive and Adaptive Neuroscience, National Centre for Scientific Research, Strasbourg
| | - Michel Barrot
- Institute of Cellular and Integrative Neuroscience, National Centre for Scientific Research, Strasbourg
| | - Ipek Yalcin
- Institute of Cellular and Integrative Neuroscience, National Centre for Scientific Research, Strasbourg.
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30
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Datta T, Przyklenk K, Datta NS. Parathyroid Hormone-Related Peptide: A Novel Endocrine Cardioprotective "Conditioning Mimetic". J Cardiovasc Pharmacol Ther 2017; 22:529-537. [PMID: 28403647 DOI: 10.1177/1074248417702976] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
An as-yet limited body of evidence suggests that calcium-regulating endocrine hormones-in particular, parathyroid hormone-related peptide (PTHrP)-may have unappreciated cardioprotective effects. The current review focuses on the concept that PTHrP may, via modulation of classic cardioprotective signaling pathways, provide a novel strategy to attenuate myocardial ischemia-reperfusion injury.
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Affiliation(s)
- Tanuka Datta
- 1 Department of Internal Medicine, George Washington University, Washington, DC, USA
| | - Karin Przyklenk
- 2 Cardiovascular Research Institute, Wayne State University School of Medicine, Detroit, MI, USA.,3 Department of Physiology, Wayne State University School of Medicine, Detroit, MI, USA.,4 Department of Emergency Medicine, Wayne State University School of Medicine, Detroit, MI, USA
| | - Nabanita S Datta
- 2 Cardiovascular Research Institute, Wayne State University School of Medicine, Detroit, MI, USA.,5 Department of Internal Medicine, Wayne State University School of Medicine, Detroit, MI, USA
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31
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Kesarwani M, Kincaid Z, Gomaa A, Huber E, Rohrabaugh S, Siddiqui Z, Bouso MF, Latif T, Xu M, Komurov K, Mulloy JC, Cancelas JA, Grimes HL, Azam M. Targeting c-FOS and DUSP1 abrogates intrinsic resistance to tyrosine-kinase inhibitor therapy in BCR-ABL-induced leukemia. Nat Med 2017; 23:472-482. [PMID: 28319094 PMCID: PMC5424814 DOI: 10.1038/nm.4310] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Accepted: 02/21/2017] [Indexed: 12/26/2022]
Abstract
Tyrosine kinase inhibitor (TKI) therapy for human cancers is not curative, with relapse due to the continuing presence of tumor cells, referred to as minimal residual disease (MRD) cells. MRD stem or progenitor cells survival in the absence of oncogenic kinase signaling, a phenomenon referred to as intrinsic resistance, depends on diverse growth factors. Here, we report that oncogenic kinase and growth factor signaling converge to induce the expression of the signaling proteins c-Fos and Dusp1. Genetic deletion of c-Fos and Dusp1 suppressed tumor growth in a BCR-ABL-induced mouse model of chronic myeloid leukemia (CML). Pharmacological inhibition of c-Fos, Dusp1 and BCR-ABL eradicated MRD in multiple in vivo models, as well as in primary CML patient xenotransplanted mice. Growth factor signaling also conferred TKI resistance and induced c-FOS and DUSP1 expression in tumor cells modeling other types of kinase-driven leukemias. Our data demonstrate that c-Fos and Dusp1 expression levels determine the threshold of TKI efficacy, such that growth factor-induced expression of c-Fos and Dusp1 confers intrinsic resistance to TKI therapy in a wide-ranging set of leukemias, and may represent a unifying Achilles heel of kinase-driven cancers.
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Affiliation(s)
- Meenu Kesarwani
- Division of Experimental Hematology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Zachary Kincaid
- Division of Experimental Hematology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Ahmed Gomaa
- Division of Experimental Hematology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Erika Huber
- Division of Experimental Hematology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Sara Rohrabaugh
- Division of Experimental Hematology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Zain Siddiqui
- Division of Experimental Hematology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Muhammad F Bouso
- Division of Experimental Hematology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Tahir Latif
- Department of Medicine, University of Cincinnati, Cincinnati, Ohio, USA
| | - Ming Xu
- Department of Anesthesia and Critical Care, University of Chicago, Chicago, Illinois, USA
| | - Kakajan Komurov
- Division of Experimental Hematology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - James C Mulloy
- Division of Experimental Hematology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Jose A Cancelas
- Division of Experimental Hematology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - H Leighton Grimes
- Division of Experimental Hematology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Mohammad Azam
- Division of Experimental Hematology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Division of Pathology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
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Lopes LJS, Tesser-Gamba F, Petrilli AS, de Seixas Alves MT, Garcia-Filho RJ, Toledo SRC. MAPK pathways regulation by DUSP1 in the development of osteosarcoma: Potential markers and therapeutic targets. Mol Carcinog 2017; 56:1630-1641. [DOI: 10.1002/mc.22619] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Accepted: 01/20/2017] [Indexed: 01/28/2023]
Affiliation(s)
- Luana Joyce Silva Lopes
- Genetics Laboratory, Department of Pediatrics; Pediatric Oncology Institute (IOP/GRAACC/UNIFESP); Federal University of São Paulo; São Paulo Brazil
- Department of Clinical and Experimental Oncology; Federal University of São Paulo; São Paulo Brazil
| | - Francine Tesser-Gamba
- Genetics Laboratory, Department of Pediatrics; Pediatric Oncology Institute (IOP/GRAACC/UNIFESP); Federal University of São Paulo; São Paulo Brazil
| | - Antônio Sérgio Petrilli
- Department of Pediatrics; Pediatric Oncology Institute (IOP/GRAACC/UNIFESP); Federal University of São Paulo; São Paulo Brazil
| | - Maria Teresa de Seixas Alves
- Department of Pathology; Pediatric Oncology Institute (IOP/GRAACC/UNIFESP); Federal University of São Paulo; São Paulo Brazil
| | - Reynaldo Jesus Garcia-Filho
- Department of Orthopedic Surgery and Traumatology; Pediatric Oncology Institute (IOP/GRAACC/UNIFESP); Federal University of São Paulo; São Paulo Brazil
| | - Silvia Regina Caminada Toledo
- Genetics Laboratory, Department of Pediatrics; Pediatric Oncology Institute (IOP/GRAACC/UNIFESP); Federal University of São Paulo; São Paulo Brazil
- Department of Clinical and Experimental Oncology; Federal University of São Paulo; São Paulo Brazil
- Department of Morphology and Genetics; Federal University of São Paulo; São Paulo Brazil
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He W, Wu Y, Tang X, Xia Y, He G, Min Z, Li C, Xiong S, Shi Z, Lu Y, Yuan Z. HDAC inhibitors suppress c-Jun/Fra-1-mediated proliferation through transcriptionally downregulating MKK7 and Raf1 in neuroblastoma cells. Oncotarget 2017; 7:6727-47. [PMID: 26734995 PMCID: PMC4872745 DOI: 10.18632/oncotarget.6797] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2015] [Accepted: 12/23/2015] [Indexed: 12/19/2022] Open
Abstract
Activator protein 1 (AP-1) is a transcriptional factor composed of the dimeric members of bZIP proteins, which are frequently deregulated in human cancer cells. In this study, we aimed to identify an oncogenic AP-1 dimer critical for the proliferation of neuroblastoma cells and to investigate whether histone deacetylase inhibitors (HDACIs), a new generation of anticancer agents, could target the AP-1 dimer. We report here that HDACIs including trichostatin A, suberoylanilidehydroxamic acid, valproic acid and M344 can transcriptionally suppress both c-Jun and Fra-1, preceding their inhibition of cell growth. c-Jun preferentially interacting with Fra-1 as a heterodimer is responsible for AP-1 activity and critical for cell growth. Mechanistically, HDACIs suppress Fra-1 expression through transcriptionally downregulating Raf1 and subsequently decreasing MEK1/2-ERK1/2 activity. Unexpectedly, HDACI treatment caused MKK7 downregulation at both the protein and mRNA levels. Deletion analysis of the 5′-flanking sequence of the MKK7 gene revealed that a major element responsible for the downregulation by HDACI is located at −149 to −3 relative to the transcriptional start site. Knockdown of MKK7 but not MKK4 remarkably decreased JNK/c-Jun activity and proliferation, whereas ectopic MKK7-JNK1 reversed HDACI-induced c-Jun suppression. Furthermore, suppression of both MKK-7/c-Jun and Raf-1/Fra-1 activities was involved in the tumor growth inhibitory effects induced by SAHA in SH-SY5Y xenograft mice. Collectively, these findings demonstrated that c-Jun/Fra-1 dimer is critical for neuroblastoma cell growth and that HDACIs act as effective suppressors of the two oncogenes through transcriptionally downregulating MKK7 and Raf1.
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Affiliation(s)
- Weiwen He
- Department of Neurosurgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Institute of Neuroscience, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and Ministry of Education of China, Guangzhou Medical University, Guangzhou, China
| | - Yanna Wu
- Department of Neurosurgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Institute of Neuroscience, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and Ministry of Education of China, Guangzhou Medical University, Guangzhou, China
| | - Xiaomei Tang
- Department of Neurosurgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Institute of Neuroscience, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and Ministry of Education of China, Guangzhou Medical University, Guangzhou, China
| | - Yong Xia
- Institute of Neuroscience, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and Ministry of Education of China, Guangzhou Medical University, Guangzhou, China
| | - Guozhen He
- Department of Neurosurgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Institute of Neuroscience, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and Ministry of Education of China, Guangzhou Medical University, Guangzhou, China
| | - Zhiqun Min
- Clinical Laboratory Center of Molecular Medicine, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Chun Li
- Department of Neurosurgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Institute of Neuroscience, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and Ministry of Education of China, Guangzhou Medical University, Guangzhou, China
| | - Shiqiu Xiong
- Department of Biochemistry, University of Leicester, Leicester, UK
| | - Zhi Shi
- Department of Cell Biology and Institute of Biomedicine, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Yongjian Lu
- Department of Neurosurgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Institute of Neuroscience, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and Ministry of Education of China, Guangzhou Medical University, Guangzhou, China
| | - Zhongmin Yuan
- Department of Neurosurgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Institute of Neuroscience, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and Ministry of Education of China, Guangzhou Medical University, Guangzhou, China
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Liu R, Molkentin JD. Regulation of cardiac hypertrophy and remodeling through the dual-specificity MAPK phosphatases (DUSPs). J Mol Cell Cardiol 2016; 101:44-49. [PMID: 27575022 PMCID: PMC5154921 DOI: 10.1016/j.yjmcc.2016.08.018] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 08/24/2016] [Accepted: 08/25/2016] [Indexed: 01/19/2023]
Abstract
Mitogen-activated protein kinases (MAPKs) play a critical role in regulating cardiac hypertrophy and remodeling in response to increased workload or pathological insults. The spatiotemporal activities and inactivation of MAPKs are tightly controlled by a family of dual-specificity MAPK phosphatases (DUSPs). Over the past 2 decades, we and others have determined the critical role for selected DUSP family members in controlling MAPK activity in the heart and the ensuing effects on ventricular growth and remodeling. More specifically, studies from mice deficient for individual Dusp genes as well as heart-specific inducible transgene-mediated overexpression have implicated select DUSPs as essential signaling effectors in the heart that function by dynamically regulating the level, subcellular and temporal activities of the extracellular signal-regulated kinases (ERKs), c-Jun N-terminal kinases (JNKs) and p38 MAPKs. This review summarizes recent literature on the physiological and pathological roles of MAPK-specific DUSPs in regulating MAPK signaling in the heart and the effect on cardiac growth and remodeling.
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Affiliation(s)
- Ruijie Liu
- Department of Biomedical Sciences, Grand Valley State University, Allendale, MI 49401, USA; Division of Molecular Cardiovascular Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Jeffery D Molkentin
- Division of Molecular Cardiovascular Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA; Howard Hughes Medical Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA.
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35
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Kang YS, Seok HJ, Jeong EJ, Kim Y, Yun SJ, Min JK, Kim SJ, Kim JS. DUSP1 induces paclitaxel resistance through the regulation of p-glycoprotein expression in human ovarian cancer cells. Biochem Biophys Res Commun 2016; 478:403-409. [DOI: 10.1016/j.bbrc.2016.07.035] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Accepted: 07/07/2016] [Indexed: 12/13/2022]
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36
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Broome DT, Datta NS. Mitogen-activated protein kinase phosphatase-1: function and regulation in bone and related tissues. Connect Tissue Res 2016; 57:175-89. [PMID: 27031422 DOI: 10.3109/03008207.2015.1125480] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
In this review, we have highlighted work that has clearly demonstrated that mitogen-activated protein kinase (MAPK) phosphatase-1 (MKP-1), a negative regulator of MAPKs, is an important signaling mediator in bone, muscle, and fat tissue homeostasis and differentiation. Further, we examined recent studies with particular focus on MKP-1 overexpression or deletion and its impact on tissues connected to bone. We also summarized regulation of MKP-1 by known skeletal regulators like parathyroid hormone (PTH)/PTH-related peptide (PTHrP) and bone morphogenic proteins. MKP-1's integration into the pathophysiological state of osteoporosis, osteoarthritis, rheumatoid arthritis, obesity, and muscular dystrophy are examined to emphasize possible involvement of MKP-1 both at the molecular level and in disease complications such as sarcopenia- or diabetes-related osteoporosis. We predict that understanding the mechanism of MKP-1-mediated signaling in bone-muscle-fat crosstalk will be a key in coordinating their activities and developing therapeutics to improve clinical outcomes for diseases associated with advanced age.
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Affiliation(s)
- David T Broome
- a Division of Endocrinology, Department of Internal Medicine , Wayne State University School of Medicine , Detroit , MI , USA
| | - Nabanita S Datta
- a Division of Endocrinology, Department of Internal Medicine , Wayne State University School of Medicine , Detroit , MI , USA
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37
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Almeida-Pereira G, Coletti R, Mecawi AS, Reis LC, Elias LLK, Antunes-Rodrigues J. Estradiol and angiotensin II crosstalk in hydromineral balance: Role of the ERK1/2 and JNK signaling pathways. Neuroscience 2016; 322:525-38. [PMID: 26951941 DOI: 10.1016/j.neuroscience.2016.02.067] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 02/17/2016] [Accepted: 02/28/2016] [Indexed: 10/22/2022]
Abstract
The angiotensin II (ANGII) receptor AT1 plays an important role in the control of hydromineral balance, mediating the dipsogenic and natriorexigenic effects and neuroendocrine responses of ANGII. While estradiol (E2) is known to modulate several actions of ANGII in the brain, the molecular and cellular mechanisms of the interaction between E2 and ANGII and its physiological role in the control of body fluids remain unclear. We investigated the influence of E2 (40 μg/kg) pretreatment and extracellular-signal-regulated kinase (ERK1/2) and c-Jun N-terminal kinase (JNK) cell signaling on the dipsogenic and natriorexigenic effects, as well as the neuroendocrine responses to angiotensinergic central stimulation in ovariectomized rats (OVX). We showed that the inhibitory effect of E2 on ANGII-induced water and sodium intake requires the ERK1/2 and JNK signaling pathways. On the other hand, E2 pretreatment prevents the ANGII-induced phosphorylation of ERK and JNK in the lamina terminalis. E2 therapy decreased oxytocin (OT) and vasopressin (AVP) secretion and decreased ERK1/2 phosphorylation in the supraoptic and paraventricular nuclei (SON and PVN, respectively). We found that the AVP secretion induced by ANGII required ERK1/2 signaling, but OT secretion did not involve ERK1/2 signaling. Taken together, these results demonstrate that E2 modulates ANGII-induced water and sodium intake and AVP secretion by affecting the ERK1/2 and JNK pathways in the lamina terminalis and ERK1/2 signaling in the hypothalamic nuclei (PVN and SON) in OVX rats.
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Affiliation(s)
- G Almeida-Pereira
- Department of Physiology, School of Medicine of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto 14049-900, Brazil.
| | - R Coletti
- Department of Physiology, School of Medicine of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto 14049-900, Brazil
| | - A S Mecawi
- Department of Physiological Sciences, Institute of Biology, Federal Rural University of Rio de Janeiro, Seropedica 23890-000, Brazil
| | - L C Reis
- Department of Physiological Sciences, Institute of Biology, Federal Rural University of Rio de Janeiro, Seropedica 23890-000, Brazil
| | - L L K Elias
- Department of Physiology, School of Medicine of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto 14049-900, Brazil
| | - J Antunes-Rodrigues
- Department of Physiology, School of Medicine of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto 14049-900, Brazil
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38
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Toulouse A, Nolan YM. A role for mitogen-activated protein kinase phosphatase 1 (MKP1) in neural cell development and survival. Neural Regen Res 2016; 10:1748-9. [PMID: 26807102 PMCID: PMC4705779 DOI: 10.4103/1673-5374.169606] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- André Toulouse
- Department of Anatomy and Neuroscience, University College Cork, Western Gateway Building, Cork, Ireland
| | - Yvonne M Nolan
- Department of Anatomy and Neuroscience, University College Cork, Western Gateway Building, Cork, Ireland
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Datta NS, Chukkapalli S, Vengalil N, Zhan E, Przyklenk K, Lasley R. Parathyroid hormone-related peptide protects cardiomyocytes from oxidative stress-induced cell death: First evidence of a novel endocrine-cardiovascular interaction. Biochem Biophys Res Commun 2015; 468:202-7. [PMID: 26518653 DOI: 10.1016/j.bbrc.2015.10.130] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Accepted: 10/24/2015] [Indexed: 11/27/2022]
Abstract
Although there is a growing interest in the molecular cross-talk between the endocrine and cardiovascular systems, the cardiac effects of calcium-regulating hormones (i.e., parathyroid hormone-related peptide (PTHrP)) have not been explored. In this study, we examined the effect of PTHrP on the viability of isolated adult mouse cardiomyocytes subjected to oxidative stress. Myocytes from 19 to 22 week old male 129J/C57BL6 mice were exposed to oxidative insult in the form of H2O2 which led to more than 70% loss of cell viability. Herein we demonstrate, for the first time, that pretreatment with 100 nM PTHrP prior to 100 μM H2O2 incubation prevents H2O2 -induced cell death by more than 50%. Immunoblot analysis revealed H2O2 induction of MKP-1 protein expression while PTHrP decreased MKP-1 expression. Moreover, myocytes derived from MKP1 KO mice were resistant to oxidative injury. No added benefit of PTHrP treatment was noted in MKP-1 null cardiomyocytes. Using specific pharmacological inhibitors we demonstrated that P-p38, P-ERK and P-AKT mediated PTHrP's cardioprotective action. These data provide novel evidence that: i) down-regulation of MKP1 affords profound protection against oxidative stress; and ii) PTHrP is cardioprotective, possibly via down-regulation of MKP-1 and activation of MAPK and PI3K/AKT signaling.
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Affiliation(s)
- Nabanita S Datta
- Department of Internal Medicine/Endocrinology, Wayne State University School of Medicine, Detroit, MI 48201, USA; Department of Cardiovascular Research Institute, Wayne State University School of Medicine, Detroit, MI 48201, USA; Department of Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI 48201, USA.
| | - Sahiti Chukkapalli
- Department of Internal Medicine/Endocrinology, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Nathan Vengalil
- Department of Internal Medicine/Endocrinology, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Enbo Zhan
- Department of Cardiovascular Research Institute, Wayne State University School of Medicine, Detroit, MI 48201, USA; Department of Physiology, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Karin Przyklenk
- Department of Cardiovascular Research Institute, Wayne State University School of Medicine, Detroit, MI 48201, USA; Department of Physiology, Wayne State University School of Medicine, Detroit, MI 48201, USA; Department of Emergency Medicine, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Robert Lasley
- Department of Cardiovascular Research Institute, Wayne State University School of Medicine, Detroit, MI 48201, USA; Department of Physiology, Wayne State University School of Medicine, Detroit, MI 48201, USA
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40
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Lee SG, Jung JY, Shin JS, Shin KS, Cho CW, Rhee YK, Hong HD, Lee KT. Immunostimulatory polysaccharide isolated from the leaves of Diospyros kaki Thumb modulate macrophage via TLR2. Int J Biol Macromol 2015; 79:971-82. [DOI: 10.1016/j.ijbiomac.2015.06.023] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Revised: 05/28/2015] [Accepted: 06/14/2015] [Indexed: 01/22/2023]
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41
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Bjarnadottir O, Kimbung S, Johansson I, Veerla S, Jönsson M, Bendahl PO, Grabau D, Hedenfalk I, Borgquist S. Global Transcriptional Changes Following Statin Treatment in Breast Cancer. Clin Cancer Res 2015; 21:3402-11. [PMID: 25840970 DOI: 10.1158/1078-0432.ccr-14-1403] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2014] [Accepted: 03/29/2015] [Indexed: 11/16/2022]
Abstract
BACKGROUND Statins purportedly exert antitumoral effects, but the underlying mechanisms are currently not fully elucidated. The aim of this study was to explore potential statin-induced effects on global gene expression profiles in primary breast cancer. EXPERIMENTAL DESIGN This window-of-opportunity phase II trial enrolled 50 newly diagnosed breast cancer patients prescribed atorvastatin (80 mg/day) for 2 weeks presurgically. Pre- and posttreatment tumor samples were analyzed using Significance Analysis of Microarrays (SAM) to identify differentially expressed genes. Similarly, SAM and gene ontology analyses were applied to gene expression data derived from atorvastatin-treated breast cancer cell lines (MCF7, BT474, SKBR3, and MDAMB231) comparing treated and untreated cells. The Systematic Motif Analysis Retrieval Tool (SMART) was used to identify enriched transcription factor-binding sites. Literature Vector Analysis (LitVAn) identified gene module functionality, and pathway analysis was performed using GeneGo Pathways Software (MetaCore; https://portal.genego.com/). RESULTS Comparative analysis of gene expression profiles in paired clinical samples revealed 407 significantly differentially expressed genes (FDR = 0); 32 upregulated and 375 downregulated genes. Restricted filtration (fold change ≥1.49) resulted in 21 upregulated and 46 downregulated genes. Significantly upregulated genes included DUSP1, RHOB1, GADD45B, and RGS1. Pooled results from gene ontology, LitVAn and SMART analyses identified statin-induced effects on the apoptotic and MAPK pathways among others. Comparative analyses of gene expression profiles in breast cancer cell lines showed significant upregulation of the mevalonate and proapoptotic pathways following atorvastatin treatment. CONCLUSIONS We report potential statin-induced changes in global tumor gene expression profiles, indicating MAPK pathway inhibition and proapoptotic events.
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Affiliation(s)
- Olöf Bjarnadottir
- Division of Oncology and Pathology, Department of Clinical Sciences, Lund University, Lund, Sweden. Department of Oncology, Skåne University Hospital, Lund, Sweden
| | - Siker Kimbung
- Division of Oncology and Pathology, Department of Clinical Sciences, Lund University, Lund, Sweden
| | - Ida Johansson
- Division of Oncology and Pathology, Department of Clinical Sciences, Lund University, Lund, Sweden
| | - Srinivas Veerla
- Division of Oncology and Pathology, Department of Clinical Sciences, Lund University, Lund, Sweden. SciBlu genomics, Lund University, Sweden
| | - Mats Jönsson
- Division of Oncology and Pathology, Department of Clinical Sciences, Lund University, Lund, Sweden
| | - Pär-Ola Bendahl
- Division of Oncology and Pathology, Department of Clinical Sciences, Lund University, Lund, Sweden
| | - Dorthe Grabau
- Division of Oncology and Pathology, Department of Clinical Sciences, Lund University, Lund, Sweden
| | - Ingrid Hedenfalk
- Division of Oncology and Pathology, Department of Clinical Sciences, Lund University, Lund, Sweden
| | - Signe Borgquist
- Division of Oncology and Pathology, Department of Clinical Sciences, Lund University, Lund, Sweden. Department of Oncology, Skåne University Hospital, Lund, Sweden.
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Khadir A, Tiss A, Abubaker J, Abu-Farha M, Al-Khairi I, Cherian P, John J, Kavalakatt S, Warsame S, Al-Madhoun A, Al-Ghimlas F, Elkum N, Behbehani K, Dermime S, Dehbi M. MAP kinase phosphatase DUSP1 is overexpressed in obese humans and modulated by physical exercise. Am J Physiol Endocrinol Metab 2015; 308:E71-83. [PMID: 25370852 DOI: 10.1152/ajpendo.00577.2013] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Chronic low-grade inflammation and dysregulation of the stress defense system are cardinal features of obesity, a major risk factor for the development of insulin resistance and diabetes. Dual-specificity protein phosphatase 1 (DUSP1), known also as MAP kinase phosphatase 1 (MKP1), is implicated in metabolism and energy expenditure. Mice lacking DUSP1 are resistant to high-fat diet-induced obesity. However, the expression of DUSP1 has not been investigated in human obesity. In the current study, we compared the expression pattern of DUSP1 between lean and obese nondiabetic human subjects using subcutaneous adipose tissue (SAT) and peripheral blood mononuclear cells (PBMCs). The levels of DUSP1 mRNA and protein were significantly increased in obese subjects with concomitant decrease in the phosphorylation of p38 MAPK (p-p38 MAPK) and PGC-1α and an increase in the levels of phospho-JNK (p-JNK) and phospho-ERK (p-ERK). Moreover, obese subjects had higher levels of circulating DUSP1 protein that correlated positively with various obesity indicators, triglycerides, glucagon, insulin, leptin, and PAI-1 (P < 0.05) but negatively with V̇O(2max) and high-density lipoprotein (P < 0.05). The observation that DUSP1 was overexpressed in obese subjects prompted us to investigate whether physical exercise could reduce its expression. In this study, we report for the first time that physical exercise significantly attenuated the expression of DUSP1 in both the SAT and PBMCs, with a parallel increase in the expression of PGC-1α and a reduction in the levels of p-JNK and p-ERK along with attenuated inflammatory response. Collectively, our data suggest that DUSP1 upregulation is strongly linked to adiposity and that physical exercise modulates its expression. This gives further evidence that exercise might be useful as a strategy for managing obesity and preventing its associated complications.
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Affiliation(s)
| | - Ali Tiss
- Deptartment of Biomedical Research
| | | | | | | | | | | | | | | | | | | | - Naser Elkum
- Department of Biostatistics and Epidemiology, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Kazem Behbehani
- Deptartment of Biomedical Research, Fitness and Rehabilitation Center, and Department of Biostatistics and Epidemiology, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Said Dermime
- King Fahad Specialist Hospital, Dammam, Saudi Arabia; and
| | - Mohammed Dehbi
- Diabetes Research Centre, Qatar Biomedical Research Institute, Qatar Foundation, Doha, Qatar
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Shi H, Gatzke F, Molle JM, Lee HB, Helm ET, Oldham JJ, Zhang L, Gerrard DE, Bennett AM. Mice lacking MKP-1 and MKP-5 Reveal Hierarchical Regulation of Regenerative Myogenesis. ACTA ACUST UNITED AC 2015; 1:1-7. [PMID: 27064463 DOI: 10.15436/2741-0598.15.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The relative contribution of the MAP kinase phosphatases (MKPs) in the integration of MAP kinase-dependent signaling during regenerative myogenesis has yet to be fully investigated. MKP-1 and MKP-5 maintain skeletal muscle homeostasis by providing positive and negative effects on regenerative myogenesis, respectively. In order to define the hierarchical contributions of MKP-1 and MKP-5 in the regulation of regenerative myogenesis we genetically ablated both MKPs in mice. MKP-1/MKP 5-deficient double-knockout (MKP1/5- DKO) mice were viable, and upon skeletal muscle injury, were severely impaired in their capacity to regenerate skeletal muscle. Satellite cells were fewer in number in MKP1/5-DKO mice and displayed a reduced proliferative capacity as compared with those derived from wild-type mice. MKP1/5-DKO mice exhibited increased inflammation and the macrophage M1 to M2 transition during the resolution of inflammation was impaired following injury. These results demonstrate that the actions of MKP-1 to positively regulate myogenesis predominate over those of MKP-5, which negatively regulates myogenesis. Hence, MKP-1 and MKP-5 function to maintain skeletal muscle homeostasis through non-overlapping and opposing signaling pathways.
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Affiliation(s)
- Hao Shi
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA
| | | | - Julia M Molle
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA
| | - Han Bin Lee
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA
| | - Emma T Helm
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA
| | - Jessie J Oldham
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA
| | | | - David E Gerrard
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA
| | - Anton M Bennett
- Department of Pharmacology; Program in Integrative Cell Signaling and Neurobiology of Metabolism, Yale University School of Medicine, New Haven, Connecticut, USA
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David KA, Unger FT, Uhlig P, Juhl H, Moore HM, Compton C, Nashan B, Dörner A, de Weerth A, Zornig C. Surgical procedures and postsurgical tissue processing significantly affect expression of genes and EGFR-pathway proteins in colorectal cancer tissue. Oncotarget 2014; 5:11017-28. [PMID: 25526028 PMCID: PMC4294341 DOI: 10.18632/oncotarget.2669] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Accepted: 11/03/2014] [Indexed: 12/02/2022] Open
Abstract
An understanding of tissue data variability in relation to processing techniques during and postsurgery would be desirable when testing surgical specimens for clinical diagnostics, drug development, or identification of predictive biomarkers. Specimens of normal and colorectal cancer (CRC) tissues removed during colon and liver resection surgery were obtained at the beginning of surgery and postsurgically, tissue was fixed at 10, 20, and 45 minutes. Specimens were analyzed from 50 patients with primary CRC and 43 with intrahepatic metastasis of CRC using a whole genome gene expression array. Additionally, we focused on the epidermal growth factor receptor pathway and quantified proteins and their phosphorylation status in relation to tissue processing timepoints. Gene and protein expression data obtained from colorectal and liver specimens were influenced by tissue handling during surgery and by postsurgical processing time. To obtain reliable expression data, tissue processing for research and diagnostic purposes needs to be highly standardized.
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Affiliation(s)
| | | | | | | | - Helen M. Moore
- Biorepositories and Biospecimen Research Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | | | - Björn Nashan
- Clinic for Hepatobiliary Surgery and Transplantation Surgery, University Hospital Hamburg Eppendorf, Hamburg, Germany
| | - Arnulf Dörner
- Clinic for General and Visceral Surgery and Clinic for Gastroenterology, Agaplesion Diakonieklinikum Hamburg, Hamburg, Germany
| | - Andreas de Weerth
- Clinic for General and Visceral Surgery and Clinic for Gastroenterology, Agaplesion Diakonieklinikum Hamburg, Hamburg, Germany
| | - Carsten Zornig
- Surgical Clinic, Israelitisches Krankenhaus in Hamburg, Hamburg, Germany
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Hepatic mitogen-activated protein kinase phosphatase 1 selectively regulates glucose metabolism and energy homeostasis. Mol Cell Biol 2014; 35:26-40. [PMID: 25312648 DOI: 10.1128/mcb.00503-14] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The liver plays a critical role in glucose metabolism and communicates with peripheral tissues to maintain energy homeostasis. Obesity and insulin resistance are highly associated with nonalcoholic fatty liver disease (NAFLD). However, the precise molecular details of NAFLD remain incomplete. The p38 mitogen-activated protein kinase (MAPK) and c-Jun NH2-terminal kinase (JNK) regulate liver metabolism. However, the physiological contribution of MAPK phosphatase 1 (MKP-1) as a nuclear antagonist of both p38 MAPK and JNK in the liver is unknown. Here we show that hepatic MKP-1 becomes overexpressed following high-fat feeding. Liver-specific deletion of MKP-1 enhances gluconeogenesis and causes hepatic insulin resistance in chow-fed mice while selectively conferring protection from hepatosteatosis upon high-fat feeding. Further, hepatic MKP-1 regulates both interleukin-6 (IL-6) and fibroblast growth factor 21 (FGF21). Mice lacking hepatic MKP-1 exhibit reduced circulating IL-6 and FGF21 levels that were associated with impaired skeletal muscle mitochondrial oxidation and susceptibility to diet-induced obesity. Hence, hepatic MKP-1 serves as a selective regulator of MAPK-dependent signals that contributes to the maintenance of glucose homeostasis and peripheral tissue energy balance. These results also demonstrate that hepatic MKP-1 overexpression in obesity is causally linked to the promotion of hepatosteatosis.
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Zhang X, Hyer JM, Yu H, D'Silva NJ, Kirkwood KL. DUSP1 phosphatase regulates the proinflammatory milieu in head and neck squamous cell carcinoma. Cancer Res 2014; 74:7191-7. [PMID: 25312268 DOI: 10.1158/0008-5472.can-14-1379] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
DUSP1 is a dual-specificity phosphatase that regulates mitogen-activated protein (MAP) kinase activity. Studies have associated loss of DUSP1 expression with certain cancers, but there has been no report of a mechanism by which this supports tumor progression. In this study, we found DUSP1 mRNA and protein decreased in human head and neck squamous cell carcinoma tissues compared with adjacent nontumor controls. To evaluate the impact of this difference, we compared the susceptibility of Dusp1-deficient mice with oral squamous carcinogenesis induced by 4-nitroquinoline 1-oxide. Dusp1-deficient mice displayed enhanced disease progression, characterized by advanced onset, histologic stage, and tumor burden. In a syngeneic model of tumor progression, subcutaneous injection of EO771 cells formed faster-growing tumors in Dusp1-deficient mice, an effect abrogated by inhibition of p38 MAP kinase with SB203580. Histologic and quantitative assessments demonstrated increased inflammation and deregulated chemokine and cytokine expression in Dusp1-deficient tumor tissues. Specifically, proinflammatory cytokine IL1β was elevated. IL1β production was recapitulated ex vivo in primary bone marrow-derived macrophages from Dusp1-deficient mice. Together, our results clearly establish the role of Dusp1 as a tumor suppressor gene that regulates cancer-associated inflammation.
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Affiliation(s)
- Xiaoyi Zhang
- Department of Oral Health Sciences and Center for Oral Health Research, Medical University of South Carolina (MUSC), Charleston, South Carolina
| | - J Madison Hyer
- Department of Public Health Sciences, MUSC, Charleston, South Carolina
| | - Hong Yu
- Department of Oral Health Sciences and Center for Oral Health Research, Medical University of South Carolina (MUSC), Charleston, South Carolina
| | - Nisha J D'Silva
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, Michigan
| | - Keith L Kirkwood
- Department of Oral Health Sciences and Center for Oral Health Research, Medical University of South Carolina (MUSC), Charleston, South Carolina.
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He RJ, Yu ZH, Zhang RY, Zhang ZY. Protein tyrosine phosphatases as potential therapeutic targets. Acta Pharmacol Sin 2014; 35:1227-46. [PMID: 25220640 DOI: 10.1038/aps.2014.80] [Citation(s) in RCA: 246] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Accepted: 07/31/2014] [Indexed: 12/17/2022] Open
Abstract
Protein tyrosine phosphorylation is a key regulatory process in virtually all aspects of cellular functions. Dysregulation of protein tyrosine phosphorylation is a major cause of human diseases, such as cancers, diabetes, autoimmune disorders, and neurological diseases. Indeed, protein tyrosine phosphorylation-mediated signaling events offer ample therapeutic targets, and drug discovery efforts to date have brought over two dozen kinase inhibitors to the clinic. Accordingly, protein tyrosine phosphatases (PTPs) are considered next-generation drug targets. For instance, PTP1B is a well-known targets of type 2 diabetes and obesity, and recent studies indicate that it is also a promising target for breast cancer. SHP2 is a bona-fide oncoprotein, mutations of which cause juvenile myelomonocytic leukemia, acute myeloid leukemia, and solid tumors. In addition, LYP is strongly associated with type 1 diabetes and many other autoimmune diseases. This review summarizes recent findings on several highly recognized PTP family drug targets, including PTP1B, Src homology phosphotyrosyl phosphatase 2(SHP2), lymphoid-specific tyrosine phosphatase (LYP), CD45, Fas associated phosphatase-1 (FAP-1), striatal enriched tyrosine phosphatases (STEP), mitogen-activated protein kinase/dual-specificity phosphatase 1 (MKP-1), phosphatases of regenerating liver-1 (PRL), low molecular weight PTPs (LMWPTP), and CDC25. Given that there are over 100 family members, we hope this review will serve as a road map for innovative drug discovery targeting PTPs.
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Lee H, Yi JS, Lawan A, Min K, Bennett AM. Mining the function of protein tyrosine phosphatases in health and disease. Semin Cell Dev Biol 2014; 37:66-72. [PMID: 25263013 DOI: 10.1016/j.semcdb.2014.09.021] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Accepted: 09/21/2014] [Indexed: 12/31/2022]
Abstract
Protein tyrosine phosphatases (PTPs) play a crucial role in the regulation of human health and it is now clear that PTP dysfunction is causal to a variety of human diseases. Research in the PTP field has accelerated dramatically over the last decade fueled by cutting-edge technologies in genomic and proteomic techniques. This system-wide non-biased approach when applied to the discovery of PTP function has led to the elucidation of new and unanticipated roles for the PTPs. These discoveries, driven by genomic and proteomic approaches, have uncovered novel PTP findings that range from those that describe fundamental cell signaling mechanisms to implications for PTPs as novel therapeutic targets for the treatment of human disease. This review will discuss how new PTP functions have been uncovered through studies that have utilized genomic and proteomic technologies and strategies.
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Affiliation(s)
- Hojin Lee
- Department of Pharmacology, Yale University School of Medicine, New Haven, CT, USA
| | - Jae-Sung Yi
- Department of Pharmacology, Yale University School of Medicine, New Haven, CT, USA
| | - Ahmed Lawan
- Department of Pharmacology, Yale University School of Medicine, New Haven, CT, USA
| | - Kisuk Min
- Department of Pharmacology, Yale University School of Medicine, New Haven, CT, USA
| | - Anton M Bennett
- Department of Pharmacology, Yale University School of Medicine, New Haven, CT, USA; Program in Integrative Cell Signaling and Neurobiology of Metabolism, Yale University School of Medicine, New Haven, CT, USA.
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Mariga A, Zavadil J, Ginsberg SD, Chao MV. Withdrawal of BDNF from hippocampal cultures leads to changes in genes involved in synaptic function. Dev Neurobiol 2014; 75:173-92. [PMID: 25059794 DOI: 10.1002/dneu.22216] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Revised: 06/26/2014] [Accepted: 07/23/2014] [Indexed: 11/07/2022]
Abstract
Neurotrophins play a crucial role in mediating neuronal survival and synaptic plasticity. A lack of trophic factor support in the peripheral nervous system (PNS) is associated with a transcription-dependent programmed cell death process in developing sympathetic neurons. While most of the attention has been on events culminating in cell death in the PNS, the earliest events that occur after trophic factor withdrawal in the central nervous system (CNS) have not been investigated. In the CNS, brain-derived neurotrophic factor (BDNF) is widely expressed and is released in an activity-dependent manner to shape the structure and function of neuronal populations. Reduced neurotrophic factor support has been proposed as a mechanism to account for changes in synaptic plasticity during neurodevelopment to aging and neurodegenerative disorders. To this end, we performed transcriptional profiling in cultured rat hippocampal neurons. We used a TrkB ligand scavenger (TrkB-FC ) to sequester endogenous neurotrophic factor activity from hippocampal neurons in culture. Using a high-density microarray platform, we identified a significant decrease in genes that are associated with vesicular trafficking and synaptic function, as well as selective increases in MAP kinase phosphatases. A comparison of these changes with recent studies of Alzheimer's disease and cognitive impairment in postmortem brain tissue revealed striking similarities in gene expression changes for genes involved in synaptic function. These changes are relevant to a wide number of conditions in which levels of BDNF are compromised.
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Affiliation(s)
- Abigail Mariga
- Cell and Molecular Biology Program, New York University Langone Medical Center, New York, New York, 10016
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Collins LM, Downer EJ, Toulouse A, Nolan YM. Mitogen-Activated Protein Kinase Phosphatase (MKP)-1 in Nervous System Development and Disease. Mol Neurobiol 2014; 51:1158-67. [PMID: 24957007 DOI: 10.1007/s12035-014-8786-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Accepted: 06/09/2014] [Indexed: 12/24/2022]
Abstract
Mitogen-activated protein kinase phosphatase (MKP)-1 provides a negative feedback mechanism for regulating mitogen-activated protein kinase (MAPK) activity and thus a variety of cellular processes such as proliferation, differentiation, growth and apoptosis. MKP-1 is established as a central regulator of a variety of functions in the immune, metabolic and cardiovascular systems, and it is now increasingly acknowledged as having a role to play in the nervous system. It has been implicated in regulating processes of neuronal cell development and death as well as in glial cell function. Reduced MKP-1 levels have been observed in models of neurological conditions including Huntington's disease, multiple sclerosis, ischemia and cerebral hypoxia. It has also been suggested to have a role to play in psychiatric disorders such as major depressive disorder. Here, we discuss the role of MKP-1 in nervous system development and disease and examine current evidence providing insight into MKP-1 as a potential therapeutic target for various diseases of the central nervous system.
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Affiliation(s)
- Louise M Collins
- Department of Anatomy and Neuroscience, University College Cork, Western Gate Building, Cork, Ireland
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