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Gerasimova T, Poberezhniy D, Nenasheva V, Stepanenko E, Arsenyeva E, Novosadova L, Grivennikov I, Illarioshkin S, Lagarkova M, Tarantul V, Novosadova E. Inflammatory Intracellular Signaling in Neurons Is Influenced by Glial Soluble Factors in iPSC-Based Cell Model of PARK2-Associated Parkinson's Disease. Int J Mol Sci 2024; 25:9621. [PMID: 39273568 PMCID: PMC11395490 DOI: 10.3390/ijms25179621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2024] [Revised: 08/20/2024] [Accepted: 09/02/2024] [Indexed: 09/15/2024] Open
Abstract
Neuroinflammation is considered to be one of the driving factors in Parkinson's disease (PD). This study was conducted using neuronal and glial cell cultures differentiated from induced pluripotent stem cells (iPSC) of healthy donors (HD) and PD patients with different PARK2 mutations (PD). Based on the results of RNA sequencing, qPCR and ELISA, we revealed transcriptional and post-transcriptional changes in HD and PD neurons cultivated in HD and PD glial-conditioned medium. We demonstrated that if one or both of the components of the system, neurons or glia, is Parkin-deficient, the interaction resulted in the down-regulation of a number of key genes related to inflammatory intracellular pathways and negative regulation of apoptosis in neurons, which might be neuroprotective. In PD neurons, the stress-induced up-regulation of APLNR was significantly stronger compared to HD neurons and was diminished by glial soluble factors, both HD and PD. PD neurons in PD glial conditioned medium increased APLN expression and also up-regulated apelin synthesis and release into intracellular fluid, which represented another compensatory action. Overall, the reported results indicate that neuronal self-defense mechanisms contribute to cell survival, which might be characteristic of PD patients with Parkin-deficiency.
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Affiliation(s)
- Tatiana Gerasimova
- Laboratory of Translative Biomedicine, Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, 119435 Moscow, Russia
| | - Daniil Poberezhniy
- Laboratory of Molecular Neurogenetics and Innate Immunity, National Research Centre "Kurchatov Institute", 123182 Moscow, Russia
| | - Valentina Nenasheva
- Laboratory of Molecular Neurogenetics and Innate Immunity, National Research Centre "Kurchatov Institute", 123182 Moscow, Russia
| | - Ekaterina Stepanenko
- Laboratory of Molecular Neurogenetics and Innate Immunity, National Research Centre "Kurchatov Institute", 123182 Moscow, Russia
| | - Elena Arsenyeva
- Laboratory of Molecular Neurogenetics and Innate Immunity, National Research Centre "Kurchatov Institute", 123182 Moscow, Russia
| | - Lyudmila Novosadova
- Laboratory of Molecular Neurogenetics and Innate Immunity, National Research Centre "Kurchatov Institute", 123182 Moscow, Russia
| | - Igor Grivennikov
- Laboratory of Molecular Neurogenetics and Innate Immunity, National Research Centre "Kurchatov Institute", 123182 Moscow, Russia
| | | | - Maria Lagarkova
- Laboratory of Translative Biomedicine, Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, 119435 Moscow, Russia
| | - Vyacheslav Tarantul
- Laboratory of Molecular Neurogenetics and Innate Immunity, National Research Centre "Kurchatov Institute", 123182 Moscow, Russia
| | - Ekaterina Novosadova
- Laboratory of Molecular Neurogenetics and Innate Immunity, National Research Centre "Kurchatov Institute", 123182 Moscow, Russia
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2
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Hong Y, Abudukeremu X, She F, Chen Y. SOAT1 in gallbladder cancer: Clinicopathological significance and avasimibe therapeutics. J Biochem Mol Toxicol 2024; 38:e23733. [PMID: 38770938 DOI: 10.1002/jbt.23733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 04/10/2024] [Accepted: 05/09/2024] [Indexed: 05/22/2024]
Abstract
The aim of this investigation was to evaluate the differential expression of the sterol O-acyltransferase 1 (SOAT1) protein in gallbladder cancer tissues and cells, investigate the impact of Avastin on the proliferation, migration, invasion capabilities of gallbladder cancer cells, and its potential to induce cell apoptosis. Immunohistochemical analysis of samples from 145 gallbladder cancer patients was conducted, along with analysis of SOAT1 protein, mRNA expression levels, and cholesterol content in gallbladder cancer cell lines SGC-996, NOZ, and gallbladder cancer (GBC)-SD using Western blot and q-PCR techniques. Furthermore, the effects of Avastin on the proliferation, migration, and invasion capabilities of these gallbladder cancer cell lines were studied, and its ability to induce cell apoptosis was evaluated using flow cytometry, Western blot, and immunohistochemical methods. Additionally, gene expression and pathway analysis were performed, and the synergistic therapeutic effects of Avastin combined with gemcitabine were tested in a gallbladder cancer xenograft model. The study found that SOAT1 expression was significantly upregulated in GBC tissues and positively correlated with lymph node metastasis and TNM staging. In vitro experiments demonstrated that Avastin significantly inhibited the proliferation, migration, and invasion capabilities of SGC-996 and GBC-SD cell lines and induced apoptosis. RNA sequencing analysis revealed multiple differentially expressed genes in cells treated with Avastin, primarily enriched in biological pathways such as signaling transduction, malignant tumors, and the immune system. In vivo, experiments confirmed that Avastin could effectively suppress tumor growth in a gallbladder cancer xenograft model and enhanced the treatment efficacy when used in combination with gemcitabine. Overall, these findings provide new insights and strategies for targeted therapy in gallbladder cancer.
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Affiliation(s)
- Yuqun Hong
- Department of Hepatobiliary Surgery and Fujian Institute of Hepatobiliary Surgery, Fujian Medical University Union Hospital, Fujian Medical University, Fuzhou, China
- Fujian Medical University Cancer Center, Fuzhou, China
- Key Laboratory of Gastrointestinal Cancer (Fujian Medical University), Ministry of Education, Fuzhou, China
- Fujian Key Laboratory of Tumor Microbiology, Department of Medical Microbiology, Fujian Medical University, Fuzhou, China
| | - Xiahenazi Abudukeremu
- Department of Hepatobiliary Surgery and Fujian Institute of Hepatobiliary Surgery, Fujian Medical University Union Hospital, Fujian Medical University, Fuzhou, China
- Fujian Medical University Cancer Center, Fuzhou, China
- Key Laboratory of Gastrointestinal Cancer (Fujian Medical University), Ministry of Education, Fuzhou, China
- Fujian Key Laboratory of Tumor Microbiology, Department of Medical Microbiology, Fujian Medical University, Fuzhou, China
| | - Feifei She
- Fujian Medical University Cancer Center, Fuzhou, China
- Key Laboratory of Gastrointestinal Cancer (Fujian Medical University), Ministry of Education, Fuzhou, China
- Fujian Key Laboratory of Tumor Microbiology, Department of Medical Microbiology, Fujian Medical University, Fuzhou, China
| | - Yanling Chen
- Department of Hepatobiliary Surgery and Fujian Institute of Hepatobiliary Surgery, Fujian Medical University Union Hospital, Fujian Medical University, Fuzhou, China
- Fujian Medical University Cancer Center, Fuzhou, China
- Key Laboratory of Gastrointestinal Cancer (Fujian Medical University), Ministry of Education, Fuzhou, China
- Fujian Key Laboratory of Tumor Microbiology, Department of Medical Microbiology, Fujian Medical University, Fuzhou, China
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3
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Sarmasti Emami S, Ge A, Zhang D, Hao Y, Ling M, Rubino R, Nicol CJB, Wang W, Yang X. Identification of PTPN12 Phosphatase as a Novel Negative Regulator of Hippo Pathway Effectors YAP/TAZ in Breast Cancer. Int J Mol Sci 2024; 25:4064. [PMID: 38612874 PMCID: PMC11012486 DOI: 10.3390/ijms25074064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 04/04/2024] [Accepted: 04/04/2024] [Indexed: 04/14/2024] Open
Abstract
The Hippo pathway plays crucial roles in governing various biological processes during tumorigenesis and metastasis. Within this pathway, upstream signaling stimuli activate a core kinase cascade, involving MST1/2 and LATS1/2, that subsequently phosphorylates and inhibits the transcriptional co-activators YAP and its paralog TAZ. This inhibition modulates the transcriptional regulation of downstream target genes, impacting cell proliferation, migration, and death. Despite the acknowledged significance of protein kinases in the Hippo pathway, the regulatory influence of protein phosphatases remains largely unexplored. In this study, we conducted the first gain-of-functional screen for protein tyrosine phosphatases (PTPs) regulating the Hippo pathway. Utilizing a LATS kinase biosensor (LATS-BS), a YAP/TAZ activity reporter (STBS-Luc), and a comprehensive PTP library, we identified numerous novel PTPs that play regulatory roles in the Hippo pathway. Subsequent experiments validated PTPN12, a master regulator of oncogenic receptor tyrosine kinases (RTKs), as a previously unrecognized negative regulator of the Hippo pathway effectors, oncogenic YAP/TAZ, influencing breast cancer cell proliferation and migration. In summary, our findings offer valuable insights into the roles of PTPs in the Hippo signaling pathway, significantly contributing to our understanding of breast cancer biology and potential therapeutic strategies.
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Affiliation(s)
- Sahar Sarmasti Emami
- Department of Pathology and Molecular Medicine, Queen’s University, Kingston, ON K7L 3N6, Canada; (S.S.E.); (A.G.); (D.Z.); (Y.H.); (M.L.); (R.R.); (C.J.B.N.)
| | - Anni Ge
- Department of Pathology and Molecular Medicine, Queen’s University, Kingston, ON K7L 3N6, Canada; (S.S.E.); (A.G.); (D.Z.); (Y.H.); (M.L.); (R.R.); (C.J.B.N.)
| | - Derek Zhang
- Department of Pathology and Molecular Medicine, Queen’s University, Kingston, ON K7L 3N6, Canada; (S.S.E.); (A.G.); (D.Z.); (Y.H.); (M.L.); (R.R.); (C.J.B.N.)
| | - Yawei Hao
- Department of Pathology and Molecular Medicine, Queen’s University, Kingston, ON K7L 3N6, Canada; (S.S.E.); (A.G.); (D.Z.); (Y.H.); (M.L.); (R.R.); (C.J.B.N.)
| | - Min Ling
- Department of Pathology and Molecular Medicine, Queen’s University, Kingston, ON K7L 3N6, Canada; (S.S.E.); (A.G.); (D.Z.); (Y.H.); (M.L.); (R.R.); (C.J.B.N.)
| | - Rachel Rubino
- Department of Pathology and Molecular Medicine, Queen’s University, Kingston, ON K7L 3N6, Canada; (S.S.E.); (A.G.); (D.Z.); (Y.H.); (M.L.); (R.R.); (C.J.B.N.)
| | - Christopher J. B. Nicol
- Department of Pathology and Molecular Medicine, Queen’s University, Kingston, ON K7L 3N6, Canada; (S.S.E.); (A.G.); (D.Z.); (Y.H.); (M.L.); (R.R.); (C.J.B.N.)
| | - Wenqi Wang
- Department of Developmental and Cell Biology, University of California at Irvine, Irvine, CA 92617, USA;
| | - Xiaolong Yang
- Department of Pathology and Molecular Medicine, Queen’s University, Kingston, ON K7L 3N6, Canada; (S.S.E.); (A.G.); (D.Z.); (Y.H.); (M.L.); (R.R.); (C.J.B.N.)
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4
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Zhang S, Meng Y, Zhou L, Qiu L, Wang H, Su D, Zhang B, Chan K, Han J. Targeting epigenetic regulators for inflammation: Mechanisms and intervention therapy. MedComm (Beijing) 2022; 3:e173. [PMID: 36176733 PMCID: PMC9477794 DOI: 10.1002/mco2.173] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/28/2022] [Accepted: 08/05/2022] [Indexed: 11/11/2022] Open
Abstract
Emerging evidence indicates that resolution of inflammation is a critical and dynamic endogenous process for host tissues defending against external invasive pathogens or internal tissue injury. It has long been known that autoimmune diseases and chronic inflammatory disorders are characterized by dysregulated immune responses, leading to excessive and uncontrol tissue inflammation. The dysregulation of epigenetic alterations including DNA methylation, posttranslational modifications to histone proteins, and noncoding RNA expression has been implicated in a host of inflammatory disorders and the immune system. The inflammatory response is considered as a critical trigger of epigenetic alterations that in turn intercede inflammatory actions. Thus, understanding the molecular mechanism that dictates the outcome of targeting epigenetic regulators for inflammatory disease is required for inflammation resolution. In this article, we elucidate the critical role of the nuclear factor-κB signaling pathway, JAK/STAT signaling pathway, and the NLRP3 inflammasome in chronic inflammatory diseases. And we formulate the relationship between inflammation, coronavirus disease 2019, and human cancers. Additionally, we review the mechanism of epigenetic modifications involved in inflammation and innate immune cells. All that matters is that we propose and discuss the rejuvenation potential of interventions that target epigenetic regulators and regulatory mechanisms for chronic inflammation-associated diseases to improve therapeutic outcomes.
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Affiliation(s)
- Su Zhang
- Laboratory of Cancer Epigenetics and GenomicsFrontiers Science Center for Disease‐Related Molecular NetworkState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengduChina
| | - Yang Meng
- Laboratory of Cancer Epigenetics and GenomicsFrontiers Science Center for Disease‐Related Molecular NetworkState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengduChina
| | - Lian Zhou
- Laboratory of Cancer Epigenetics and GenomicsFrontiers Science Center for Disease‐Related Molecular NetworkState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengduChina
| | - Lei Qiu
- Laboratory of Cancer Epigenetics and GenomicsFrontiers Science Center for Disease‐Related Molecular NetworkState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengduChina
| | - Heping Wang
- Department of NeurosurgeryTongji Hospital of Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Dan Su
- Laboratory of Cancer Epigenetics and GenomicsFrontiers Science Center for Disease‐Related Molecular NetworkState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengduChina
| | - Bo Zhang
- Laboratory of Cancer Epigenetics and GenomicsDepartment of Gastrointestinal SurgeryFrontiers Science Center for Disease‐Related Molecular NetworkWest China HospitalSichuan UniversityChengduChina
| | - Kui‐Ming Chan
- Department of Biomedical SciencesCity University of Hong KongHong KongChina
| | - Junhong Han
- Laboratory of Cancer Epigenetics and GenomicsFrontiers Science Center for Disease‐Related Molecular NetworkState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengduChina
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5
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Liu D, Zhang Y, Fang H, Yuan J, Ji L. The progress of research into pseudophosphatases. Front Public Health 2022; 10:965631. [PMID: 36106167 PMCID: PMC9464862 DOI: 10.3389/fpubh.2022.965631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 08/09/2022] [Indexed: 01/24/2023] Open
Abstract
Pseudophosphatases are a class of phosphatases that mutate at the catalytically active site. They play important parts in many life processes and disorders, e.g., cell apoptosis, stress reaction, tumorigenesis, axon differentiation, Charcot-Marie-Tooth, and metabolic dysfunction. The present review considers the structures and action types of pseudophosphatases in four families, protein tyrosine phosphatases (PTPs), myotube protein phosphatases (MTMs), phosphatases and tensin homologues (PTENs) and dual specificity phosphatases (DUSPs), as well as their mechanisms in signaling and disease. We aimed to provide reference material for the research and treatment of related diseases.
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Affiliation(s)
- Deqiang Liu
- College of Life Sciences, Shandong Normal University, Jinan, China
| | - Yiming Zhang
- College of Life Sciences, Shandong Normal University, Jinan, China
| | - Hui Fang
- College of Life Sciences, Shandong Normal University, Jinan, China
| | - Jinxiang Yuan
- College of Life Sciences, Shandong Normal University, Jinan, China,The Collaborative Innovation Center, Jining Medical University, Jining, China,*Correspondence: Jinxiang Yuan
| | - Lizhen Ji
- College of Life Sciences, Shandong Normal University, Jinan, China,Lizhen Ji
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6
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Zhu B, Li H, Zhang L, Chandra SS, Zhao H. A Markov random field model-based approach for differentially expressed gene detection from single-cell RNA-seq data. Brief Bioinform 2022; 23:6581434. [PMID: 35514182 PMCID: PMC9487630 DOI: 10.1093/bib/bbac166] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 04/02/2022] [Accepted: 04/13/2022] [Indexed: 11/13/2022] Open
Abstract
The development of single-cell RNA-sequencing (scRNA-seq) technologies has offered insights into complex biological systems at the single-cell resolution. In particular, these techniques facilitate the identifications of genes showing cell-type-specific differential expressions (DE). In this paper, we introduce MARBLES, a novel statistical model for cross-condition DE gene detection from scRNA-seq data. MARBLES employs a Markov Random Field model to borrow information across similar cell types and utilizes cell-type-specific pseudobulk count to account for sample-level variability. Our simulation results showed that MARBLES is more powerful than existing methods to detect DE genes with an appropriate control of false positive rate. Applications of MARBLES to real data identified novel disease-related DE genes and biological pathways from both a single-cell lipopolysaccharide mouse dataset with 24 381 cells and 11 076 genes and a Parkinson's disease human data set with 76 212 cells and 15 891 genes. Overall, MARBLES is a powerful tool to identify cell-type-specific DE genes across conditions from scRNA-seq data.
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Affiliation(s)
- Biqing Zhu
- Program of Computational Biology and Bioinformatics, Yale University, New Haven, CT, 06511, USA
| | - Hongyu Li
- Department of Biostatistics, School of Public Health, Yale University, New Haven, CT, 06511, USA
| | - Le Zhang
- Department of Neurology, School of Medicine, Yale University, New Haven, CT, 06511, USA
| | - Sreeganga S Chandra
- Department of Neurology, School of Medicine, Yale University, New Haven, CT, 06511, USA,Department of Neuroscience, School of Medicine, Yale University, New Haven, CT, 06511, USA
| | - Hongyu Zhao
- Program of Computational Biology and Bioinformatics, Yale University, New Haven, CT, 06511, USA,Department of Biostatistics, School of Public Health, Yale University, New Haven, CT, 06511, USA,Corresponding author. Hongyu Zhao, 300 George Street, Ste 503, New Haven, CT 06511. E-mail:
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7
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Inhibition of DUSP6 Activates Autophagy and Rescues the Retinal Pigment Epithelium in Sodium Iodate-Induced Retinal Degeneration Models In Vivo and In Vitro. Biomedicines 2022; 10:biomedicines10010159. [PMID: 35052838 PMCID: PMC8773272 DOI: 10.3390/biomedicines10010159] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/07/2022] [Accepted: 01/10/2022] [Indexed: 01/27/2023] Open
Abstract
Autophagy plays a protective role in the retinal pigment epithelium (RPE) by eliminating damaged organelles in response to reactive oxygen species (ROS). Dual-specificity protein phosphatase 6 (DUSP6), which belongs to the DUSP subfamily, works as a negative-feedback regulator of the extracellular signal-regulated kinase (ERK) pathway. However, the complex interplay between DUSP6 and autophagy induced by ROS in RPE is yet to be investigated. To investigate the relationship between DUSP6 and autophagy, we exposed the ARPE-19 cell line and C57BL/6N mice to sodium iodate (NaIO3) as an oxidative stress inducer. Our data showed that the inhibition of DUSP6 activity promotes autophagy flux through the ERK pathway via the upregulation of immunoblotting expression in ARPE-19 cells. Live imaging showed a significant increase in autophagic flux activities, which suggested the restoration autophagy after treatment with the DUSP6 inhibitor. Furthermore, the mouse RPE layer exhibited an irregular structure and abnormal deposits following NaIO3 injection. The retina layer was recovered after being treated with DUSP6 inhibitor; this suggests that DUSP6 inhibitor can rescue retinal damage by restoring the mouse retina’s autophagy flux. This study suggests that the upregulation of DUSP6 can cause autophagy flux malfunctions in the RPE. The DUSP6 inhibitor can restore autophagy induction, which may serve as a potential therapeutic approach for retinal degeneration disease.
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Comparative Transcriptome Analysis in Monocyte-Derived Macrophages of Asymptomatic GBA Mutation Carriers and Patients with GBA-Associated Parkinson's Disease. Genes (Basel) 2021; 12:genes12101545. [PMID: 34680941 PMCID: PMC8535749 DOI: 10.3390/genes12101545] [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: 09/09/2021] [Revised: 09/27/2021] [Accepted: 09/28/2021] [Indexed: 12/31/2022] Open
Abstract
Mutations of the GBA gene, encoding for lysosomal enzyme glucocerebrosidase (GCase), are the greatest genetic risk factor for Parkinson’s disease (PD) with frequency between 5% and 20% across the world. N370S and L444P are the two most common mutations in the GBA gene. PD carriers of severe mutation L444P in the GBA gene is characterized by the earlier age at onset compared to N370S. Not every carrier of GBA mutations develop PD during one’s lifetime. In the current study we aimed to find common gene expression signatures in PD associated with mutation in the GBA gene (GBA-PD) using RNA-seq. We compared transcriptome of monocyte-derived macrophages of 5 patients with GBA-PD (4 L444P/N, 1 N370S/N) and 4 asymptomatic GBA mutation carriers (GBA-carriers) (3 L444P/N, 1 N370S/N) and 4 controls. We also conducted comparative transcriptome analysis for L444P/N only GBA-PD patients and GBA-carriers. Revealed deregulated genes in GBA-PD independently of GBA mutations (L444P or N370S) were involved in immune response, neuronal function. We found upregulated pathway associated with zinc metabolism in L444P/N GBA-PD patients. The potential important role of DUSP1 in the pathogenesis of GBA-PD was suggested.
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Gao PP, Qi XW, Sun N, Sun YY, Zhang Y, Tan XN, Ding J, Han F, Zhang Y. The emerging roles of dual-specificity phosphatases and their specific characteristics in human cancer. Biochim Biophys Acta Rev Cancer 2021; 1876:188562. [PMID: 33964330 DOI: 10.1016/j.bbcan.2021.188562] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 04/15/2021] [Accepted: 05/02/2021] [Indexed: 12/15/2022]
Abstract
Reversible phosphorylation of proteins, controlled by kinases and phosphatases, is involved in various cellular processes. Dual-specificity phosphatases (DUSPs) can dephosphorylate phosphorylated serine, threonine and tyrosine residues. This family consists of 61 members, 44 of which have been identified in human, and these 44 members are classified into six subgroups, the phosphatase and tensin homolog (PTEN) protein phosphatases (PTENs), mitogen-activated protein kinase phosphatases (MKPs), atypical DUSPs, cell division cycle 14 (CDC14) phosphatases (CDC14s), slingshot protein phosphatases (SSHs), and phosphatases of the regenerating liver (PRLs). Growing evidence has revealed dysregulation of DUSPs as one of the common phenomenons and highlighted their key roles in human cancers. Furthermore, their differential expression may be a potential biomarker for tumor prognosis. Despite this, there are still many unstudied members of DUSPs need to further explore their precise roles and mechanism in cancers. Most importantly, the systematic review is very limited on the functional/mechanistic characteristics and clinical application of DUSPs at present. In this review, the structures, functions and underlying mechanisms of DUSPs are systematically reviewed, and the molecular and functional characteristics of DUSPs in different tumor types according to the current researches are summarized. In addition, the potential roles of the unstudied members and the possible different mechanisms of DUSPs in cancer are discussed and classified based on homology alignment and structural domain analyses. Moreover, the specific characteristics of their expression and prognosis are further determined in more than 30 types of human cancers by using the online databases. Finally, their potential application in precise diagnosis, prognosis and treatment of different types of cancers, and the main possible problems for the clinical application at present are prospected.
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Affiliation(s)
- Ping-Ping Gao
- Breast and Thyroid Surgery, Southwest Hospital, Army Medical University, Chongqing 400038, China
| | - Xiao-Wei Qi
- Breast and Thyroid Surgery, Southwest Hospital, Army Medical University, Chongqing 400038, China
| | - Na Sun
- Breast and Thyroid Surgery, Southwest Hospital, Army Medical University, Chongqing 400038, China
| | - Yuan-Yuan Sun
- Institute of Toxicology, College of Preventive Medicine, Army Medical University, Chongqing 400038, China; Department of Clinical Pharmacy, Jilin University School of Pharmaceutical Sciences, Changchun, Jilin 130023, China
| | - Ye Zhang
- Breast and Thyroid Surgery, Southwest Hospital, Army Medical University, Chongqing 400038, China
| | - Xuan-Ni Tan
- Breast and Thyroid Surgery, Southwest Hospital, Army Medical University, Chongqing 400038, China
| | - Jun Ding
- Department of Hepatobiliary Surgery, Third Affiliated Hospital of Chongqing Medical University, Chongqing 401120, China
| | - Fei Han
- Institute of Toxicology, College of Preventive Medicine, Army Medical University, Chongqing 400038, China.
| | - Yi Zhang
- Breast and Thyroid Surgery, Southwest Hospital, Army Medical University, Chongqing 400038, China.
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10
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Bhattacharyya T, Sowdhamini R. Genome-wide survey of tyrosine phosphatases in thirty mammalian genomes. Cell Signal 2021; 84:110009. [PMID: 33848580 DOI: 10.1016/j.cellsig.2021.110009] [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: 12/30/2020] [Revised: 04/08/2021] [Accepted: 04/09/2021] [Indexed: 11/25/2022]
Abstract
The age of genomics has given us a wealth of information and the tools to study whole genomes. This, in turn, has facilitated genome-wide studies among organisms that were relatively less studied in the pre-genomic era or are non-model organisms. This paves the way to the discovery of interesting evolutionary patterns, which are brought to light by genome-wide surveys of protein superfamilies. Phosphorylation is a post-translational modification that is utilised across all clades of life, and acts as an important signalling switch, regulating several cellular processes. Tyrosine phosphatases, which are found predominantly in eukaryotes, act on phosphorylated tyrosine residues and sometimes on other substrates. Extending on our previous effort to look for tyrosine phosphatases in the human genome, we have looked for sequences of the cysteine-based tyrosine phosphatase superfamily in thirty mammalian genomes from all across Mammalia and validated the sequences with the presence of the signature catalytic motif. Domain architecture annotation, followed by in-depth analysis, revealed interesting taxon-specific patterns such as subtle differences between the protein families in marsupials and early mammals versus placental mammals. Finally, we discuss an interesting case of loss of the tyrosine phosphatase domain from a gene product in the course of eutherian evolution.
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Affiliation(s)
- Teerna Bhattacharyya
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bellary Road, Bangalore, Karnataka, 560 065, India
| | - Ramanathan Sowdhamini
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bellary Road, Bangalore, Karnataka, 560 065, India.
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11
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Distinct Transcriptomic Profiles in the Dorsal Hippocampus and Prelimbic Cortex Are Transiently Regulated following Episodic Learning. J Neurosci 2021; 41:2601-2614. [PMID: 33536202 DOI: 10.1523/jneurosci.1557-20.2021] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 11/25/2020] [Accepted: 01/06/2021] [Indexed: 01/07/2023] Open
Abstract
A fundamental, evolutionarily conserved biological mechanism required for long-term memory formation is rapid induction of gene transcription upon learning in relevant brain areas. For episodic types of memories, two regions undergoing this transcription are the dorsal hippocampus (dHC) and prelimbic (PL) cortex. Whether and to what extent these regions regulate similar or distinct transcriptomic profiles upon learning remain to be understood. Here, we used RNA sequencing in the dHC and PL cortex of male rats to profile their transcriptomes in untrained conditions (baseline) and at 1 h and 6 d after inhibitory avoidance learning. We found that, of 33,713 transcripts, >14,000 were significantly expressed at baseline in both regions and ∼3000 were selectively enriched in each region. Gene Ontology biological pathway analyses indicated that commonly expressed pathways included synapse organization, regulation of membrane potential, and vesicle localization. The enriched pathways in the dHC were gliogenesis, axon development, and lipid modification, while in the PL cortex included vesicle localization and synaptic vesicle cycle. At 1 h after learning, 135 transcripts changed significantly in the dHC and 478 in the PL cortex; of these, only 34 were shared. Biological pathways most significantly regulated by learning in the dHC were protein dephosphorylation, glycogen and glucan metabolism, while in the PL cortex were axon development and axonogenesis. The transcriptome profiles returned to baseline by 6 d after training. Thus, a significant portion of dHC and PL cortex transcriptomic profiles is divergent, and their regulation upon learning is largely distinct and transient.SIGNIFICANCE STATEMENT Long-term episodic memory formation requires gene transcription in several brain regions, including the hippocampus and PFC. The comprehensive profiles of the dynamic mRNA changes that occur in these regions following learning are not well understood. Here, we performed RNA sequencing in the dorsal hippocampus and prelimbic cortex, a PFC subregion, at baseline, 1 h, and 6 d after episodic learning in rats. We found that, at baseline, dorsal hippocampus and prelimbic cortex differentially express a significant portion of mRNAs. Moreover, learning produces a transient regulation of region-specific profiles of mRNA, indicating that unique biological programs in different brain regions underlie memory formation.
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Bhore N, Wang BJ, Wu PF, Lee YL, Chen YW, Hsu WM, Lee H, Huang YS, Yang DI, Liao YF. Dual-Specificity Phosphatase 15 (DUSP15) Modulates Notch Signaling by Enhancing the Stability of Notch Protein. Mol Neurobiol 2021; 58:2204-2214. [PMID: 33417224 DOI: 10.1007/s12035-020-02254-0] [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: 03/24/2020] [Accepted: 12/08/2020] [Indexed: 11/27/2022]
Abstract
Dual-specificity phosphatases (DUSPs) comprise a unique group of enzymes that dephosphorylate signaling proteins at both phospho-serine/threonine and phospho-tyrosine residues. Since Notch signaling is an essential pathway for neuronal cell fate determination and development that is also upregulated in Alzheimer's disease tissues, we sought to explore whether and how DUSPs may impact Notch processing. Our results show that overexpression of DUSP15 concomitantly and dose-dependently increased the steady-state levels of recombinant Notch (extracellular domain-truncated Notch, NotchΔE) protein and its cleaved product, Notch intracellular domain (NICD). The overall ratio of NotchΔE to NICD was unchanged by overexpression of DUSP15, suggesting that the effect is independent of γ-secretase. Interestingly, overexpression of DUSP15 also dose-dependently increased phosphorylated ERK1/2. Phosphorylated ERK1/2 is known to be positively correlated with Notch protein level, and we found that DUSP15-mediated regulation of Notch was dependent on ERK1/2 activity. Together, our findings reveal the existence of a previously unidentified DUSP15-ERK1/2-Notch signaling axis, which could potentially play a role in neuronal differentiation and neurological disease.
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Affiliation(s)
- Noopur Bhore
- Laboratory of Molecular Neurobiology, Institute of Cellular and Organismic Biology, Academia Sinica, ICOB 238, 128 Sec. 2 Academia Rd, Taipei, 11529, Taiwan.,Taiwan International Graduate Program in Interdisciplinary Neuroscience, National Yang-Ming University, Academia Sinica, Taipei, Taiwan
| | - Bo-Jeng Wang
- Laboratory of Molecular Neurobiology, Institute of Cellular and Organismic Biology, Academia Sinica, ICOB 238, 128 Sec. 2 Academia Rd, Taipei, 11529, Taiwan
| | - Po-Fan Wu
- Laboratory of Molecular Neurobiology, Institute of Cellular and Organismic Biology, Academia Sinica, ICOB 238, 128 Sec. 2 Academia Rd, Taipei, 11529, Taiwan.,Taiwan International Graduate Program in Interdisciplinary Neuroscience, National Cheng Kung University, Academia Sinica, Taipei, Taiwan
| | - Yen-Lurk Lee
- TIGP in Molecular Medicine, National Yang-Ming University, Academia Sinica, Taipei, Taiwan.,Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Yun-Wen Chen
- Laboratory of Molecular Neurobiology, Institute of Cellular and Organismic Biology, Academia Sinica, ICOB 238, 128 Sec. 2 Academia Rd, Taipei, 11529, Taiwan
| | - Wen-Ming Hsu
- Department of Surgery, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Hsinyu Lee
- Department of Life Science, National Taiwan University, Taipei, Taiwan
| | - Yi-Shuian Huang
- Taiwan International Graduate Program in Interdisciplinary Neuroscience, National Yang-Ming University, Academia Sinica, Taipei, Taiwan.,Taiwan International Graduate Program in Interdisciplinary Neuroscience, National Cheng Kung University, Academia Sinica, Taipei, Taiwan.,TIGP in Molecular Medicine, National Yang-Ming University, Academia Sinica, Taipei, Taiwan.,Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Ding-I Yang
- Taiwan International Graduate Program in Interdisciplinary Neuroscience, National Yang-Ming University, Academia Sinica, Taipei, Taiwan.,Institute of Brain Science, National Yang-Ming University, Taipei, Taiwan
| | - Yung-Feng Liao
- Laboratory of Molecular Neurobiology, Institute of Cellular and Organismic Biology, Academia Sinica, ICOB 238, 128 Sec. 2 Academia Rd, Taipei, 11529, Taiwan. .,Taiwan International Graduate Program in Interdisciplinary Neuroscience, National Yang-Ming University, Academia Sinica, Taipei, Taiwan. .,Taiwan International Graduate Program in Interdisciplinary Neuroscience, National Cheng Kung University, Academia Sinica, Taipei, Taiwan.
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13
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Bogari NM, Al-Allaf FA, Aljohani A, Taher MM, Qutub NA, Alhelfawi S, Alobaidi A, Alqudah DM, Banni H, Dairi G, Amin AA. The Co-existence of ADHD With Autism in Saudi Children: An Analysis Using Next-Generation DNA Sequencing. Front Genet 2020; 11:548559. [PMID: 33384710 PMCID: PMC7770135 DOI: 10.3389/fgene.2020.548559] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 11/17/2020] [Indexed: 01/01/2023] Open
Abstract
Attention-deficit/hyperactivity disorder (ADHD) is one of the most common neurodevelopmental disorders. Several studies have confirmed the co-existence of other neuropsychiatric disorders with ADHD. Out of 106 individuals suspected to have ADHD, eight Saudi Arabian pediatric patients were diagnosed with ADHD using a dual assessment procedure based on highly significant scores from the international criteria for diagnosis; (full form DMS) DSM-5. Then, these patients were examined for the co-existence of autism and ADHD using different international diagnostic protocols. Four patients with combined ADHD and autism and four ADHD patients without autism were examined for the presence of genetic variants. Six variants (chr1:98165091, chr6:32029183, chr6:32035603, chr6:32064098, chr8:2909992, chr16:84213434) were identified in 75% of the patients with ADHD and autism, indicating that these genes may have a possible role in causing autism. Five variants (The chr2:116525960, chr15:68624396, chr15:91452595, chr15:92647645, and chr16:82673047) may increase to the severity of ADHD. This study recommends screening these eleven variants in ADHD cases and their relevant controls to confirm the prevalence in the Saudi population. It is recommended that future studies examine the 11 variants in detail.
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Affiliation(s)
- Neda M. Bogari
- Department of Medical Genetics, Faculty of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Faisal A. Al-Allaf
- Department of Medical Genetics, Faculty of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Ashwag Aljohani
- Department of Medical Genetics, Faculty of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Mohiuddin M. Taher
- Department of Medical Genetics, Faculty of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
- Science and Technology Unit, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Nermeen A. Qutub
- Special Need Department, School of Education, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Suhair Alhelfawi
- Special Need Department, School of Education, Umm Al-Qura University, Makkah, Saudi Arabia
- Institute of Education, University of Reading, Reading, United Kingdom
| | - Amal Alobaidi
- Sinad City for Special Education, Jeddah, Saudi Arabia
| | - Derar M. Alqudah
- Special Need Department, School of Education, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Hussain Banni
- Department of Medical Genetics, Faculty of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Ghida Dairi
- Medicine and Medical Sciences Research Center, Deanship of Scientific Research, Umm Al-Qura University, Makkah, Saudi Arabia
- Department of Physiology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Amr A. Amin
- Department of Biochemistry, Faculty of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
- Faculty of Medicine, Ain Shams University, Cairo, Egypt
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14
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Kumar A, Rana D, Rana R, Bhatia R. Protein Tyrosine Phosphatase (PTP1B): A promising Drug Target Against Life-threatening Ailments. Curr Mol Pharmacol 2020; 13:17-30. [DOI: 10.2174/1874467212666190724150723] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 06/26/2019] [Accepted: 07/11/2019] [Indexed: 12/14/2022]
Abstract
Background:Protein tyrosine phosphatases are enzymes which help in the signal transduction in diabetes, obesity, cancer, liver diseases and neurodegenerative diseases. PTP1B is the main member of this enzyme from the protein extract of human placenta. In phosphate inhibitors development, significant progress has been made over the last 10 years. In early-stage clinical trials, few compounds have reached whereas in the later stage trials or registration, yet none have progressed. Many researchers investigate different ways to improve the pharmacological properties of PTP1B inhibitors.Objective:In the present review, authors have summarized various aspects related to the involvement of PTP1B in various types of signal transduction mechanisms and its prominent role in various diseases like cancer, liver diseases and diabetes mellitus.Conclusion:There are still certain challenges for the selection of PTP1B as a drug target. Therefore, continuous future efforts are required to explore this target for the development of PTP inhibitors to treat the prevailing diseases associated with it.
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Affiliation(s)
- Ajay Kumar
- Department of Pharmaceutical Analysis, Indo-Soviet Friendship College of Pharmacy (ISFCP), Moga-142001, India
| | - Divya Rana
- Department of Pharmaceutical Analysis, Indo-Soviet Friendship College of Pharmacy (ISFCP), Moga-142001, India
| | - Rajat Rana
- Department of Pharmaceutical Analysis, Indo-Soviet Friendship College of Pharmacy (ISFCP), Moga-142001, India
| | - Rohit Bhatia
- Department of Pharmaceutical Analysis, Indo-Soviet Friendship College of Pharmacy (ISFCP), Moga-142001, India
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15
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Subbannayya Y, Pinto SM, Bösl K, Prasad TSK, Kandasamy RK. Dynamics of Dual Specificity Phosphatases and Their Interplay with Protein Kinases in Immune Signaling. Int J Mol Sci 2019; 20:ijms20092086. [PMID: 31035605 PMCID: PMC6539644 DOI: 10.3390/ijms20092086] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 04/23/2019] [Accepted: 04/25/2019] [Indexed: 12/12/2022] Open
Abstract
Dual specificity phosphatases (DUSPs) have a well-known role as regulators of the immune response through the modulation of mitogen-activated protein kinases (MAPKs). Yet the precise interplay between the various members of the DUSP family with protein kinases is not well understood. Recent multi-omics studies characterizing the transcriptomes and proteomes of immune cells have provided snapshots of molecular mechanisms underlying innate immune response in unprecedented detail. In this study, we focus on deciphering the interplay between members of the DUSP family with protein kinases in immune cells using publicly available omics datasets. Our analysis resulted in the identification of potential DUSP-mediated hub proteins including MAPK7, MAPK8, AURKA, and IGF1R. Furthermore, we analyzed the association of DUSP expression with TLR4 signaling and identified VEGF, FGFR, and SCF-KIT pathway modules to be regulated by the activation of TLR4 signaling. Finally, we identified several important kinases including LRRK2, MAPK8, and cyclin-dependent kinases as potential DUSP-mediated hubs in TLR4 signaling. The findings from this study have the potential to aid in the understanding of DUSP signaling in the context of innate immunity. Further, this will promote the development of therapeutic modalities for disorders with aberrant DUSP signaling.
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Affiliation(s)
- Yashwanth Subbannayya
- Centre of Molecular Inflammation Research (CEMIR), Department of Clinical and Molecular Medicine (IKOM), Norwegian University of Science and Technology, N-7491 Trondheim, Norway.
- Center for Systems Biology and Molecular Medicine, Yenepoya (Deemed to be University), Mangalore 575018, India.
| | - Sneha M Pinto
- Centre of Molecular Inflammation Research (CEMIR), Department of Clinical and Molecular Medicine (IKOM), Norwegian University of Science and Technology, N-7491 Trondheim, Norway.
- Center for Systems Biology and Molecular Medicine, Yenepoya (Deemed to be University), Mangalore 575018, India.
| | - Korbinian Bösl
- Centre of Molecular Inflammation Research (CEMIR), Department of Clinical and Molecular Medicine (IKOM), Norwegian University of Science and Technology, N-7491 Trondheim, Norway.
| | - T S Keshava Prasad
- Center for Systems Biology and Molecular Medicine, Yenepoya (Deemed to be University), Mangalore 575018, India.
| | - Richard K Kandasamy
- Centre of Molecular Inflammation Research (CEMIR), Department of Clinical and Molecular Medicine (IKOM), Norwegian University of Science and Technology, N-7491 Trondheim, Norway.
- Centre for Molecular Medicine Norway (NCMM), Nordic EMBL Partnership, University of Oslo and Oslo University Hospital, N-0349 Oslo, Norway.
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16
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Pérez-Sen R, Queipo MJ, Gil-Redondo JC, Ortega F, Gómez-Villafuertes R, Miras-Portugal MT, Delicado EG. Dual-Specificity Phosphatase Regulation in Neurons and Glial Cells. Int J Mol Sci 2019; 20:ijms20081999. [PMID: 31018603 PMCID: PMC6514851 DOI: 10.3390/ijms20081999] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 04/19/2019] [Accepted: 04/19/2019] [Indexed: 01/03/2023] Open
Abstract
Dual-specificity protein phosphatases comprise a protein phosphatase subfamily with selectivity towards mitogen-activated protein (MAP) kinases, also named MKPs, or mitogen-activated protein kinase (MAPK) phosphatases. As powerful regulators of the intensity and duration of MAPK signaling, a relevant role is envisioned for dual-specificity protein phosphatases (DUSPs) in the regulation of biological processes in the nervous system, such as differentiation, synaptic plasticity, and survival. Important neural mediators include nerve growth factor (NGF) and brain-derived neurotrophic factor (BDNF) that contribute to DUSP transcriptional induction and post-translational mechanisms of DUSP protein stabilization to maintain neuronal survival and differentiation. Potent DUSP gene inducers also include cannabinoids, which preserve DUSP activity in inflammatory conditions. Additionally, nucleotides activating P2X7 and P2Y13 nucleotide receptors behave as novel players in the regulation of DUSP function. They increase cell survival in stressful conditions, regulating DUSP protein turnover and inducing DUSP gene expression. In general terms, in the context of neural cells exposed to damaging conditions, the recovery of DUSP activity is neuroprotective and counteracts pro-apoptotic over-activation of p38 and JNK. In addition, remarkable changes in DUSP function take place during the onset of neuropathologies. The restoration of proper DUSP levels and recovery of MAPK homeostasis underlie the therapeutic effect, indicating that DUSPs can be relevant targets for brain diseases.
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Affiliation(s)
- Raquel Pérez-Sen
- Departamento de Bioquímica y Biología Molecular, Facultad de Veterinaria, Instituto Universitario de Investigación en Neuroquímica (IUIN), Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdiSSC), Universidad Complutense Madrid, 28040 Madrid, Spain.
| | - María José Queipo
- Departamento de Bioquímica y Biología Molecular, Facultad de Veterinaria, Instituto Universitario de Investigación en Neuroquímica (IUIN), Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdiSSC), Universidad Complutense Madrid, 28040 Madrid, Spain.
| | - Juan Carlos Gil-Redondo
- Departamento de Bioquímica y Biología Molecular, Facultad de Veterinaria, Instituto Universitario de Investigación en Neuroquímica (IUIN), Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdiSSC), Universidad Complutense Madrid, 28040 Madrid, Spain.
| | - Felipe Ortega
- Departamento de Bioquímica y Biología Molecular, Facultad de Veterinaria, Instituto Universitario de Investigación en Neuroquímica (IUIN), Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdiSSC), Universidad Complutense Madrid, 28040 Madrid, Spain.
| | - Rosa Gómez-Villafuertes
- Departamento de Bioquímica y Biología Molecular, Facultad de Veterinaria, Instituto Universitario de Investigación en Neuroquímica (IUIN), Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdiSSC), Universidad Complutense Madrid, 28040 Madrid, Spain.
| | - María Teresa Miras-Portugal
- Departamento de Bioquímica y Biología Molecular, Facultad de Veterinaria, Instituto Universitario de Investigación en Neuroquímica (IUIN), Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdiSSC), Universidad Complutense Madrid, 28040 Madrid, Spain.
| | - Esmerilda G Delicado
- Departamento de Bioquímica y Biología Molecular, Facultad de Veterinaria, Instituto Universitario de Investigación en Neuroquímica (IUIN), Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdiSSC), Universidad Complutense Madrid, 28040 Madrid, Spain.
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17
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Liao W, Zheng Y, Fang W, Liao S, Xiong Y, Li Y, Xiao S, Zhang X, Liu J. Dual Specificity Phosphatase 6 Protects Neural Stem Cells from β-Amyloid-Induced Cytotoxicity through ERK1/2 Inactivation. Biomolecules 2018; 8:E181. [PMID: 30572643 PMCID: PMC6315916 DOI: 10.3390/biom8040181] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 12/09/2018] [Accepted: 12/11/2018] [Indexed: 12/11/2022] Open
Abstract
Alzheimer's disease (AD) is a devastating neurodegenerative disease with limited treatment options and no cure. Beta-amyloid (Aβ) is a hallmark of AD that has potent neurotoxicity in neural stem cells (NSCs). Dual specificity phosphatase 6 (DUSP6) is a member of the mitogen-activated protein kinases (MAPKs), which is involved in regulating various physiological and pathological processes. Whether DUSP6 has a protective effect on Aβ-induced NSC injury remains to be explored. C17.2 neural stem cells were transfected with DUSP6-overexpressed plasmid. NSCs with or without DUSP6 overexpression were administrated with Aβ25⁻35 at various concentrations (i.e., 0, 2.5, 5 μM). DUSP6 expression after Aβ treatment was detected by Real-Time Polymerase Chain Reaction (RT-PCR) and Western blot and cell vitality was examined by the CCK8 assay. The oxidative stress (intracellular reactive oxygen species (ROS) and malondialdehyde (MDA)), endoplasmic reticulum stress (ER calcium level) and mitochondrial dysfunction (cytochrome c homeostasis) were tested. The expression of p-ERK1/2 and ERK1/2 were assayed by Western blot. Our results showed that Aβ decreased the expression of DUSP6 in a dose-dependent manner. The overexpression of DUSP6 increased the cell vitality of NSCs after Aβ treatment. Oxidative stress, ER stress, and mitochondrial dysfunction induced by Aβ could be restored by DUSP6 overexpression. Additionally, the Aβ-induced ERK1/2 activation was reversed. In summary, DUSP6 might have a neuroprotective effect on Aβ-induced cytotoxicity, probably via ERK1/2 activation.
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Affiliation(s)
- Wang Liao
- Department of Psychiatry, McLean Hospital, Harvard Medical School, Belmont, MA 02478, USA.
- Guangdong Province Key Laboratory of Brain Function and Disease, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510120, China.
| | - Yuqiu Zheng
- Guangdong Province Key Laboratory of Brain Function and Disease, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510120, China.
| | - Wenli Fang
- Guangdong Province Key Laboratory of Brain Function and Disease, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510120, China.
| | - Shaowei Liao
- Guangdong Province Key Laboratory of Brain Function and Disease, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510120, China.
| | - Ying Xiong
- Guangdong Province Key Laboratory of Brain Function and Disease, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510120, China.
| | - Yi Li
- Guangdong Province Key Laboratory of Brain Function and Disease, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510120, China.
| | - Songhua Xiao
- Guangdong Province Key Laboratory of Brain Function and Disease, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510120, China.
| | - Xingcai Zhang
- John A Paulson School of Engineering and Applied Science, Harvard University, Cambridge, MA 02138, USA.
| | - Jun Liu
- Guangdong Province Key Laboratory of Brain Function and Disease, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510120, China.
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Ryu J, Lee DH. Dual-specificity phosphatase 18 modulates the SUMOylation and aggregation of Ataxin-1. Biochem Biophys Res Commun 2018; 502:389-396. [PMID: 29852174 DOI: 10.1016/j.bbrc.2018.05.178] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Accepted: 05/26/2018] [Indexed: 12/31/2022]
Abstract
We previously reported that SUMOylation promotes the aggregation of ataxin-1 and JNK is involved in the process. Here we show that dual-specificity phosphatase 18 (DUSP18), a member of protein tyrosine phosphatases, exerts the opposite effects on ataxin-1. DUSP18 associated with ataxin-1 and suppressed JNK activated by ataxin-1. Interestingly DUSP18, but not the other DUSPs interacting with ataxin-1, caused the mobility shift of ataxin-1. De-phosphorylation by DUSP18 was initially suspected as a cause for such an effect; however, the phosphorylation of ataxin-1 was unchanged. Instead DUSP18 inhibited SUMOylation and reduced ataxin-1 aggregation. The catalytic mutant of DUSP18 failed to reduce the SUMOylation and aggregation of ataxin-1 indicating that the phosphatase activity is indispensable for the effects. Moreover, DUSP18 disrupted the co-localization of ataxin-1 with the PML component Sp100. These results together implicate that JNK and DUSP18 reciprocally modulate the SUMOylation, which plays a regulatory role in the aggregation of ataxin-1.
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Affiliation(s)
- Joohyun Ryu
- Department of Cellular and Molecular Biology, The Hormel Institute, University of Minnesota, Austin, MN, USA
| | - Do Hee Lee
- Department of Biotechnology, Seoul Women's University, Seoul, South Korea.
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Abdal Dayem A, Lee SB, Choi HY, Cho SG. Silver Nanoparticles: Two-Faced Neuronal Differentiation-Inducing Material in Neuroblastoma (SH-SY5Y) Cells. Int J Mol Sci 2018; 19:E1470. [PMID: 29762523 PMCID: PMC5983825 DOI: 10.3390/ijms19051470] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 05/08/2018] [Accepted: 05/11/2018] [Indexed: 12/31/2022] Open
Abstract
We have previously demonstrated the potential of biologically synthesized silver nanoparticles (AgNP) in the induction of neuronal differentiation of human neuroblastoma, SH-SY5Y cells; we aimed herein to unveil its molecular mechanism in comparison to the well-known neuronal differentiation-inducing agent, all-trans-retinoic acid (RA). AgNP-treated SH-SY5Y cells showed significantly higher reactive oxygen species (ROS) generation, stronger mitochondrial membrane depolarization, lower dual-specificity phosphatase expression, higher extracellular-signal-regulated kinase (ERK) phosphorylation, lower AKT phosphorylation, and lower expression of the genes encoding the antioxidant enzymes than RA-treated cells. Notably, pretreatment with N-acetyl-l-cysteine significantly abolished AgNP-induced neuronal differentiation, but not in that induced by RA. ERK inhibition, but not AKT inhibition, suppresses neurite growth that is induced by AgNP. Taken together, our results uncover the pivotal contribution of ROS in the AgNP-induced neuronal differentiation mechanism, which is different from that of RA. However, the negative consequence of AgNP-induced neurite growth may be high ROS generation and the downregulation of the expression of the genes encoding the antioxidant enzymes, which prompts the future consideration and an in-depth study of the application of AgNP-differentiated cells in neurodegenerative disease therapy.
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Affiliation(s)
- Ahmed Abdal Dayem
- Department of Stem Cell and Regenerative Biotechnology, Incurable Disease Animal Model & Stem Cell Institute (IDASI), Konkuk University, Seoul 05029, Korea.
| | - Soo Bin Lee
- Department of Stem Cell and Regenerative Biotechnology, Incurable Disease Animal Model & Stem Cell Institute (IDASI), Konkuk University, Seoul 05029, Korea.
| | - Hye Yeon Choi
- Department of Stem Cell and Regenerative Biotechnology, Incurable Disease Animal Model & Stem Cell Institute (IDASI), Konkuk University, Seoul 05029, Korea.
| | - Ssang-Goo Cho
- Department of Stem Cell and Regenerative Biotechnology, Incurable Disease Animal Model & Stem Cell Institute (IDASI), Konkuk University, Seoul 05029, Korea.
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