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Enomoto A, Fukasawa T, Terunuma H, Nakagawa K, Yoshizaki A, Sato S, Hosoya N, Miyagawa K. Deregulated JNK signaling enhances apoptosis during hyperthermia. Int J Hyperthermia 2024; 41:2335199. [PMID: 38565204 DOI: 10.1080/02656736.2024.2335199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 03/22/2024] [Indexed: 04/04/2024] Open
Abstract
PURPOSE c-Jun N-terminal kinases (JNKs) comprise a subfamily of mitogen-activated protein kinases (MAPKs). The JNK group is known to be activated by a variety of stimuli. However, the molecular mechanism underlying heat-induced JNK activation is largely unknown. The aim of this study was to clarify how JNK activity is stimulated by heat. METHODS AND MATERIALS The expression levels of various MAPK members in HeLa cells, with or without hyperthermia treatment, were evaluated via western blotting. The kinase activity of MAPK members was assessed through in vitro kinase assays. Cell death was assessed in the absence or presence of siRNAs targeting MAPK-related members. RESULTS Hyperthermia decreased the levels of MAP3Ks, such as ASK1 and MLK3 which are JNK kinase kinase members, but not those of the downstream MAP2K/SEK1 and MAPK/JNK. Despite the reduced or transient phosphorylation of ASK1, MLK3, or SEK1, downstream JNK was phosphorylated in a temperature-dependent manner. In vitro kinase assays demonstrated that heat did not directly stimulate SEK1 or JNK. However, the expression levels of DUSP16, a JNK phosphatase, were decreased upon hyperthermia treatment. DUSP16 knockdown enhanced the heat-induced activation of ASK1-SEK1-JNK pathway and apoptosis. CONCLUSION JNK was activated in a temperature-dependent manner despite reduced or transient phosphorylation of the upstream MAP3K and MAP2K. Hyperthermia-induced degradation of DUSP16 may induce activation of the ASK1-SEK1-JNK pathway and subsequent apoptosis.
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Affiliation(s)
- Atsushi Enomoto
- Laboratory of Molecular Radiology, Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Takemichi Fukasawa
- Department of Dermatology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Department of Clinical Cannabinoid Research, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | | | - Keiichi Nakagawa
- Comprehensive Radiation Oncology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Ayumi Yoshizaki
- Department of Dermatology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Department of Clinical Cannabinoid Research, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Shinichi Sato
- Department of Dermatology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Noriko Hosoya
- Laboratory of Molecular Radiology, Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kiyoshi Miyagawa
- Laboratory of Molecular Radiology, Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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2
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Varma M, Bhandari R, Kuhad A. Repurposing Niclosamide as a plausible neurotherapeutic in autism spectrum disorders, targeting mitochondrial dysfunction: a strong hypothesis. Metab Brain Dis 2024; 39:387-401. [PMID: 37284987 PMCID: PMC10957696 DOI: 10.1007/s11011-023-01247-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 05/31/2023] [Indexed: 06/08/2023]
Abstract
Autism Spectrum Disorders (ASD) are a complex set of neurodevelopmental manifestations which present in the form of social and communication deficits. Affecting a growing proportion of children worldwide, the exact pathogenesis of this disorder is not very well understood, and multiple signaling pathways have been implicated. Among them, the ERK/MAPK pathway is critical in a number of cellular processes, and the normal functioning of neuronal cells also depends on this cascade. As such, recent studies have increasingly focused on the impact this pathway has on the development of autistic symptoms. Improper ERK signaling is suspected to be involved in neurotoxicity, and the same might be implicated in autism spectrum disorders (ASD), through a variety of effects including mitochondrial dysfunction and oxidative stress. Niclosamide, an antihelminthic and anti-inflammatory agent, has shown potential in inhibiting this pathway, and countering the effects shown by its overactivity in inflammation. While it has previously been evaluated in other neurological disorders like Alzheimer's Disease and Parkinson's Disease, as well as various cancers by targeting ERK/MAPK, it's efficacy in autism has not yet been evaluated. In this article, we attempt to discuss the potential role of the ERK/MAPK pathway in the pathogenesis of ASD, specifically through mitochondrial damage, before moving to the therapeutic potential of niclosamide in the disorder, mediated by the inhibition of this pathway and its detrimental effects of neuronal development.
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Affiliation(s)
- Manasi Varma
- Pharmacology Research Laboratory, UGC- Centre of Advanced Study, University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, 160 014, India
| | - Ranjana Bhandari
- Pharmacology Research Laboratory, UGC- Centre of Advanced Study, University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, 160 014, India.
| | - Anurag Kuhad
- Pharmacology Research Laboratory, UGC- Centre of Advanced Study, University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, 160 014, India.
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3
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Hurtado-Navarro L, Cuenca-Zamora EJ, Zamora L, Bellosillo B, Such E, Soler-Espejo E, Martínez-Banaclocha H, Hernández-Rivas JM, Marco-Ayala J, Martínez-Alarcón L, Linares-Latorre L, García-Ávila S, Amat-Martínez P, González T, Arnan M, Pomares-Marín H, Carreño-Tarragona G, Chen-Liang TH, Herranz MT, García-Palenciano C, Morales ML, Jerez A, Lozano ML, Teruel-Montoya R, Pelegrín P, Ferrer-Marín F. NLRP3 inflammasome activation and symptom burden in KRAS-mutated CMML patients is reverted by IL-1 blocking therapy. Cell Rep Med 2023; 4:101329. [PMID: 38118408 PMCID: PMC10772462 DOI: 10.1016/j.xcrm.2023.101329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 09/21/2023] [Accepted: 11/17/2023] [Indexed: 12/22/2023]
Abstract
Chronic myelomonocytic leukemia (CMML) is frequently associated with mutations in the rat sarcoma gene (RAS), leading to worse prognosis. RAS mutations result in active RAS-GTP proteins, favoring myeloid cell proliferation and survival and inducing the NLRP3 inflammasome together with the apoptosis-associated speck-like protein containing a caspase recruitment domain (ASC), which promote caspase-1 activation and interleukin (IL)-1β release. Here, we report, in a cohort of CMML patients with mutations in KRAS, a constitutive activation of the NLRP3 inflammasome in monocytes, evidenced by ASC oligomerization and IL-1β release, as well as a specific inflammatory cytokine signature. Treatment of a CMML patient with a KRASG12D mutation using the IL-1 receptor blocker anakinra inhibits NLRP3 inflammasome activation, reduces monocyte count, and improves the patient's clinical status, enabling a stem cell transplant. This reveals a basal inflammasome activation in RAS-mutated CMML patients and suggests potential therapeutic applications of NLRP3 and IL-1 blockers.
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Affiliation(s)
| | - Ernesto José Cuenca-Zamora
- Biomedical Research Institute of Murcia (IMIB-Pascual Parrilla), Murcia, Spain; Hematology Department, Hospital Universitario Morales-Meseguer, Centro Regional de Hemodonación, Murcia, Spain; CIBERER CB15/00055 (U765), Murcia, Spain
| | - Lurdes Zamora
- Myeloid Neoplasms Group, Josep Carreras Leukaemia Research Institute, ICO-Hospital Germans Trias I Pujol, Universitat Autònoma de Barcelona, Badalona, Spain
| | - Beatriz Bellosillo
- Molecular Biology Laboratory, Pathology Department, Hospital Del Mar, Hospital Del Mar Medical Research Institute, IMIM, Barcelona, Spain
| | - Esperanza Such
- Hematology Department, La Fe University Hospital, Valencia, Spain
| | - Eva Soler-Espejo
- Hematology Department, Hospital Universitario Morales-Meseguer, Centro Regional de Hemodonación, Murcia, Spain
| | - Helios Martínez-Banaclocha
- Biomedical Research Institute of Murcia (IMIB-Pascual Parrilla), Murcia, Spain; Immunology Service, Hospital Universitario Virgen de La Arrixaca, Murcia, Spain
| | - Jesús M Hernández-Rivas
- Department of Medicine, Universidad de Salamanca, Servicio de Hematología, Hospital Universitario de Salamanca, IBSAL, Salamanca, Spain
| | - Javier Marco-Ayala
- Hematology Department, Hospital Universitario Morales-Meseguer, Centro Regional de Hemodonación, Murcia, Spain
| | | | - Lola Linares-Latorre
- Service of Clinical Analysis and Microbiology, Fundación Instituto Valenciano de Oncología, Valencia, Spain
| | - Sara García-Ávila
- Department of Hematology, Hospital Del Mar, Barcelona, Spain; IMIM (Hospital Del Mar Medical Research Institute), Barcelona, Spain
| | - Paula Amat-Martínez
- Hematology Service, Clinic University Hospital, INCLIVA Health Research Institute, Valencia, Spain
| | - Teresa González
- Department of Medicine, Universidad de Salamanca, Servicio de Hematología, Hospital Universitario de Salamanca, IBSAL, Salamanca, Spain
| | - Montserrat Arnan
- Hematology Department, Institut Català D'Oncologia (ICO)-Hospital Duran I Reynals, IDIBELL, Barcelona, Spain
| | - Helena Pomares-Marín
- Hematology Department, Institut Català D'Oncologia (ICO)-Hospital Duran I Reynals, IDIBELL, Barcelona, Spain
| | | | - Tzu Hua Chen-Liang
- Hematology Department, Hospital Universitario Morales-Meseguer, Centro Regional de Hemodonación, Murcia, Spain
| | - María T Herranz
- Internal Medicine Service, Hospital Universitario Morales Meseguer, Murcia, Spain
| | - Carlos García-Palenciano
- Biomedical Research Institute of Murcia (IMIB-Pascual Parrilla), Murcia, Spain; Servicio de Anestesiología y Reanimación, Hospital Clínico Universitario Virgen de La Arrixaca, Murcia, Spain
| | - María Luz Morales
- Biomedical Research Institute of Murcia (IMIB-Pascual Parrilla), Murcia, Spain; Hematology Department, Hospital Universitario Morales-Meseguer, Centro Regional de Hemodonación, Murcia, Spain
| | - Andrés Jerez
- Biomedical Research Institute of Murcia (IMIB-Pascual Parrilla), Murcia, Spain; Hematology Department, Hospital Universitario Morales-Meseguer, Centro Regional de Hemodonación, Murcia, Spain; CIBERER CB15/00055 (U765), Murcia, Spain
| | - María L Lozano
- Biomedical Research Institute of Murcia (IMIB-Pascual Parrilla), Murcia, Spain; Hematology Department, Hospital Universitario Morales-Meseguer, Centro Regional de Hemodonación, Murcia, Spain; CIBERER CB15/00055 (U765), Murcia, Spain
| | - Raúl Teruel-Montoya
- Biomedical Research Institute of Murcia (IMIB-Pascual Parrilla), Murcia, Spain; Hematology Department, Hospital Universitario Morales-Meseguer, Centro Regional de Hemodonación, Murcia, Spain; CIBERER CB15/00055 (U765), Murcia, Spain; Universidad Católica San Antonio (UCAM), Murcia, Spain
| | - Pablo Pelegrín
- Biomedical Research Institute of Murcia (IMIB-Pascual Parrilla), Murcia, Spain; Department of Biochemistry and Molecular Biology B and Immunology, University of Murcia, Murcia, Spain.
| | - Francisca Ferrer-Marín
- Biomedical Research Institute of Murcia (IMIB-Pascual Parrilla), Murcia, Spain; Hematology Department, Hospital Universitario Morales-Meseguer, Centro Regional de Hemodonación, Murcia, Spain; CIBERER CB15/00055 (U765), Murcia, Spain; Universidad Católica San Antonio (UCAM), Murcia, Spain.
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4
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Zhai F, Wang J, Luo X, Ye M, Jin X. Roles of NOLC1 in cancers and viral infection. J Cancer Res Clin Oncol 2023; 149:10593-10608. [PMID: 37296317 DOI: 10.1007/s00432-023-04934-5] [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: 04/15/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023]
Abstract
BACKGROUND The nucleolus is considered the center of metabolic control and an important organelle for the biogenesis of ribosomal RNA (rRNA). Nucleolar and coiled-body phosphoprotein 1(NOLC1), which was originally identified as a nuclear localization signal-binding protein is a nucleolar protein responsible for nucleolus construction and rRNA synthesis, as well as chaperone shuttling between the nucleolus and cytoplasm. NOLC1 plays an important role in a variety of cellular life activities, including ribosome biosynthesis, DNA replication, transcription regulation, RNA processing, cell cycle regulation, apoptosis, and cell regeneration. PURPOSE In this review, we introduce the structure and function of NOLC1. Then we elaborate its upstream post-translational modification and downstream regulation. Meanwhile, we describe its role in cancer development and viral infection which provide a direction for future clinical applications. METHODS The relevant literatures from PubMed have been reviewed for this article. CONCLUSION NOLC1 plays an important role in the progression of multiple cancers and viral infection. In-depth study of NOLC1 provides a new perspective for accurate diagnosis of patients and selection of therapeutic targets.
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Affiliation(s)
- Fengguang Zhai
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Health Science Center, Ningbo University, Ningbo, 315211, China
- The Affiliated First Hospital, Ningbo University, Ningbo, 315020, China
| | - Jie Wang
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Health Science Center, Ningbo University, Ningbo, 315211, China
- The Affiliated First Hospital, Ningbo University, Ningbo, 315020, China
| | - Xia Luo
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Health Science Center, Ningbo University, Ningbo, 315211, China
| | - Meng Ye
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Health Science Center, Ningbo University, Ningbo, 315211, China.
- The Affiliated First Hospital, Ningbo University, Ningbo, 315020, China.
| | - Xiaofeng Jin
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Health Science Center, Ningbo University, Ningbo, 315211, China.
- The Affiliated First Hospital, Ningbo University, Ningbo, 315020, China.
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5
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Bardwell L, Thorner J. Mitogen-activated protein kinase (MAPK) cascades-A yeast perspective. Enzymes 2023; 54:137-170. [PMID: 37945169 DOI: 10.1016/bs.enz.2023.07.001] [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: 11/12/2023]
Abstract
Discovery of the class of protein kinase now dubbed a mitogen (or messenger)-activated protein kinase (MAPK) is an illustrative example of how disparate lines of investigation can converge and reveal an enzyme family universally conserved among eukaryotes, from single-celled microbes to humans. Moreover, elucidation of the circuitry controlling MAPK function defined a now overarching principle in enzyme regulation-the concept of an activation cascade mediated by sequential phosphorylation events. Particularly ground-breaking for this field of exploration were the contributions of genetic approaches conducted using several model organisms, but especially the budding yeast Saccharomyces cerevisiae. Notably, examination of how haploid yeast cells respond to their secreted peptide mating pheromones was crucial in pinpointing genes encoding MAPKs and their upstream activators. Fully contemporaneous biochemical analysis of the activities elicited upon stimulation of mammalian cells by insulin and other growth- and differentiation-inducing factors lead eventually to the demonstration that components homologous to those in yeast were involved. Continued studies of these pathways in yeast were integral to other foundational discoveries in MAPK signaling, including the roles of tethering, scaffolding and docking interactions.
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Affiliation(s)
- Lee Bardwell
- Department of Developmental and Cell Biology, School of Biological Sciences, University of California, Irvine, Irvine, CA, United States
| | - Jeremy Thorner
- Division of Biochemistry, Biophysics and Structural Biology, Department of Molecular and Cell Biology, College of Letters and Science, University of California, Berkeley, Berkeley, CA, United States.
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6
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Liu J, Yin Y, Ni J, Zhang P, Li WM, Liu Z. Dual Specific Phosphatase 7 Exacerbates Dilated Cardiomyopathy, Heart Failure, and Cardiac Death by Inactivating the ERK1/2 Signaling Pathway. J Cardiovasc Transl Res 2022; 15:1219-1238. [PMID: 35596107 DOI: 10.1007/s12265-022-10268-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Accepted: 04/25/2022] [Indexed: 12/16/2022]
Abstract
Heart failure is one of the most common but complicated end-stage syndromes in clinical practice. Dilated cardiomyopathy is a myocardial structural abnormality that is associated with heart failure. Dual-specificity phosphatases (DUSPs) are a group of protein phosphatases that regulate signaling pathways in numerous diseases; however, their physiological and pathological impact on cardiovascular disease remains unknown. In the present study, we generated two transgenic mouse models, a DUSP7 knockout and a cardiac-specific DUSP7 overexpressor. Mice overexpressing DUSP7 showed an exacerbated disease phenotype, including severe dilated cardiomyopathy, heart failure, and cardiac death. We further demonstrated that high levels of DUSP7 inhibited ERK1/2 phosphorylation and influenced downstream c-MYC, c-FOS, and c-JUN gene expression but did not affect upstream activators. Taken together, our study reveals a novel molecular mechanism for DUSP7 and provides a new therapeutic target and clinical path to alleviate dilated cardiomyopathy and improve cardiac function.
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Affiliation(s)
- Jing Liu
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yihen Yin
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
- Heart, Lung, and Blood Center, Pan-Vascular Research Institute, Tongji University School of Medicine, Shanghai, China
| | - Jing Ni
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Peiyu Zhang
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Wei-Ming Li
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.
- Heart, Lung, and Blood Center, Pan-Vascular Research Institute, Tongji University School of Medicine, Shanghai, China.
| | - Zheng Liu
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.
- Heart, Lung, and Blood Center, Pan-Vascular Research Institute, Tongji University School of Medicine, Shanghai, China.
- Cryo-electron Microscopy Center, Southern University of Science and Technology, Guangdong Province, Shenzhen, China.
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7
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O’Shaughnessy WJ, Dewangan PS, Paiz EA, Reese ML. Not your Mother's MAPKs: Apicomplexan MAPK function in daughter cell budding. PLoS Pathog 2022; 18:e1010849. [PMID: 36227859 PMCID: PMC9560070 DOI: 10.1371/journal.ppat.1010849] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Reversible phosphorylation by protein kinases is one of the core mechanisms by which biological signals are propagated and processed. Mitogen-activated protein kinases, or MAPKs, are conserved throughout eukaryotes where they regulate cell cycle, development, and stress response. Here, we review advances in our understanding of the function and biochemistry of MAPK signaling in apicomplexan parasites. As expected for well-conserved signaling modules, MAPKs have been found to have multiple essential roles regulating both Toxoplasma tachyzoite replication and sexual differentiation in Plasmodium. However, apicomplexan MAPK signaling is notable for the lack of the canonical kinase cascade that normally regulates the networks, and therefore must be regulated by a distinct mechanism. We highlight what few regulatory relationships have been established to date, and discuss the challenges to the field in elucidating the complete MAPK signaling networks in these parasites.
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Affiliation(s)
- William J. O’Shaughnessy
- Department of Pharmacology, University of Texas, Southwestern Medical Center, Dallas, Texas, United States of America
| | - Pravin S. Dewangan
- Department of Pharmacology, University of Texas, Southwestern Medical Center, Dallas, Texas, United States of America
| | - E. Ariana Paiz
- Department of Pharmacology, University of Texas, Southwestern Medical Center, Dallas, Texas, United States of America
| | - Michael L. Reese
- Department of Pharmacology, University of Texas, Southwestern Medical Center, Dallas, Texas, United States of America,Department of Biochemistry, University of Texas, Southwestern Medical Center, Dallas, Texas, United States of America,* E-mail:
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8
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Oldach L. A Bona Fide MAP Kinase. J Biol Chem 2022; 298:102432. [PMID: 36037971 PMCID: PMC9513259 DOI: 10.1016/j.jbc.2022.102432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/25/2022] [Indexed: 11/21/2022] Open
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9
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Qu F, Zeng X, Liu Z, Guo M, Zhang X, Cao S, Zhou Y, He Z, Tang J, Mao Z, Yang Y, Zhou Z, Liu Z. Functional characterization of MEKK3 in the intestinal immune response to bacterial challenges in grass carp (Ctenopharyngodon idella). Front Immunol 2022; 13:981995. [PMID: 35990669 PMCID: PMC9388831 DOI: 10.3389/fimmu.2022.981995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 07/18/2022] [Indexed: 11/13/2022] Open
Abstract
Mitogen-activated protein kinase kinase kinase 3 (MEKK3) is an evolutionarily conserved Ser/Thr protein kinase of the MEKK family that is essential for the host immune response to pathogen challenges in mammals. However, the immune function of MEKK3s in lower vertebrate species, especially in bony fish, remains largely unknown. In this study, a fish MEKK3 (designated CiMEKK3) gene was cloned and identified from grass carp (Ctenopharyngodon idella). The present CiMEKK3 cDNA encoded a 620 amino acid polypeptide containing a conserved S-TKc domain and a typical PB1 domain. Several potential immune-related transcription factor-binding sites, including activating protein 1 (AP-1), nuclear factor kappa B (NF-κB) and signal transducer and activator of downstream transcription 3 (STAT3), were observed in the 5’ upstream DNA sequence of CiMEKK3. A phylogenetic tree showed that CiMEKK3 exhibits a close evolutionary relationship with MEKK3s from Cyprinus carpio and Carassius auratus. Quantitative real-time PCR analysis revealed that CiMEKK3 transcripts were widely distributed in all selected tissues of healthy grass carp, with a relatively high levels observed in the gill, head kidney and intestine. Upon in vitro challenge with bacterial pathogens (Aeromonas hydrophila and Aeromonas veronii) and pathogen-associated molecular patterns (PAMPs) (lipopolysaccharide (LPS), peptidoglycan (PGN), L-Ala-γ-D-Glu-mDAP (Tri-DAP) and muramyl dipeptide (MDP)), the expression levels of CiMEKK3 in the intestinal cells of grass carp were shown to be significantly upregulated in a time-dependent manner. In vivo injection experiments revealed that CiMEKK3 transcripts were significantly induced by MDP challenge in the intestine; however, these effects could be inhibited by the nutritional dipeptides carnosine and Ala-Gln. Moreover, subcellular localization analysis and luciferase reporter assays indicated that CiMEKK3 could act as a cytoplasmic signal-transducing activator involved in the regulation of NF-κB and MAPK/AP-1 signaling cascades in HEK293T cells. Taken together, these findings strongly suggest that CiMEKK3 plays vital roles in the intestinal immune response to bacterial challenges, which will aid in understanding the pathogenesis of inflammatory bowel disease in bony fish.
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Affiliation(s)
- Fufa Qu
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, China
| | - Xuan Zeng
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, China
| | - Zhenzhen Liu
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, China
| | - Meixing Guo
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, China
| | - Xia Zhang
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, China
| | - Shenping Cao
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, China
| | - Yonghua Zhou
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, China
| | - Zhimin He
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, China
| | - Jianzhou Tang
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, China
| | - Zhuangwen Mao
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, China
| | - Yalin Yang
- Key Laboratory for Feed Biotechnology of the Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zhigang Zhou
- Key Laboratory for Feed Biotechnology of the Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zhen Liu
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, China
- *Correspondence: Zhen Liu,
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Gao H, Jiang L, Du B, Ning B, Ding X, Zhang C, Song B, Liu S, Zhao M, Zhao Y, Rong T, Liu D, Wu J, Xu P, Zhang S. GmMKK4-activated GmMPK6 stimulates GmERF113 to trigger resistance to Phytophthora sojae in soybean. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2022; 111:473-495. [PMID: 35562858 DOI: 10.1111/tpj.15809] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 05/09/2022] [Accepted: 05/10/2022] [Indexed: 06/15/2023]
Abstract
Phytophthora root and stem rot is a worldwide soybean (Glycine max) disease caused by the soil-borne pathogen Phytophthora sojae. This disease is devastating to soybean production, so improvement of resistance to P. sojae is a major target in soybean breeding. Mitogen-activated protein kinase (MAPK) cascades are important signaling modules that convert environmental stimuli into cellular responses. Compared with extensive studies in Arabidopsis, the molecular mechanism of MAPK cascades in soybean disease resistance is barely elucidated. In this work, we found that the gene expression of mitogen-activated protein kinase 6 (GmMPK6) was potently induced by P. sojae infection in the disease-resistant soybean cultivar 'Suinong 10'. Overexpression of GmMPK6 in soybean resulted in enhanced resistance to P. sojae and silencing of GmMPK6 led to the opposite phenotype. In our attempt to dissect the role of GmMPK6 in soybean resistance to phytophthora disease, we found that MAPK kinase 4 (GmMKK4) and the ERF transcription factor GmERF113 physically interact with GmMPK6, and we determined that GmMKK4 could phosphorylate and activate GmMPK6, which could subsequently phosphorylate GmERF113 upon P. sojae infection, suggesting that P. sojae can stimulate the GmMKK4-GmMPK6-GmERF113 signaling pathway in soybean. Moreover, phosphorylation of GmERF113 by the GmMKK4-GmMPK6 module promoted GmERF113 stability, nuclear localization and transcriptional activity, which significantly enhanced expression of the defense-related genes GmPR1 and GmPR10-1 and hence improved disease resistance of the transgenic soybean seedlings. In all, our data reveal that the GmMKK4-GmMPK6-GmERF113 cascade triggers resistance to P. sojae in soybean and shed light on functions of MAPK kinases in plant disease resistance.
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Affiliation(s)
- Hong Gao
- Soybean Research Institute, Northeast Agricultural University/Key Laboratory of Soybean Biology of Chinese Education Ministry, Harbin, 150030, China
| | - Liangyu Jiang
- Soybean Research Institute, Northeast Agricultural University/Key Laboratory of Soybean Biology of Chinese Education Ministry, Harbin, 150030, China
- Jilin Agricultural University, Changchun, 130118, China
| | - Banghan Du
- Soybean Research Institute, Northeast Agricultural University/Key Laboratory of Soybean Biology of Chinese Education Ministry, Harbin, 150030, China
| | - Bin Ning
- Soybean Research Institute, Northeast Agricultural University/Key Laboratory of Soybean Biology of Chinese Education Ministry, Harbin, 150030, China
| | - Xiaodong Ding
- Soybean Research Institute, Northeast Agricultural University/Key Laboratory of Soybean Biology of Chinese Education Ministry, Harbin, 150030, China
| | - Chuanzhong Zhang
- Soybean Research Institute, Northeast Agricultural University/Key Laboratory of Soybean Biology of Chinese Education Ministry, Harbin, 150030, China
| | - Bo Song
- Soybean Research Institute, Northeast Agricultural University/Key Laboratory of Soybean Biology of Chinese Education Ministry, Harbin, 150030, China
| | - Shanshan Liu
- Soybean Research Institute, Northeast Agricultural University/Key Laboratory of Soybean Biology of Chinese Education Ministry, Harbin, 150030, China
| | - Ming Zhao
- Soybean Research Institute, Northeast Agricultural University/Key Laboratory of Soybean Biology of Chinese Education Ministry, Harbin, 150030, China
| | - Yuxin Zhao
- Soybean Research Institute, Northeast Agricultural University/Key Laboratory of Soybean Biology of Chinese Education Ministry, Harbin, 150030, China
| | - Tianyu Rong
- Soybean Research Institute, Northeast Agricultural University/Key Laboratory of Soybean Biology of Chinese Education Ministry, Harbin, 150030, China
| | - Dongxue Liu
- Soybean Research Institute, Northeast Agricultural University/Key Laboratory of Soybean Biology of Chinese Education Ministry, Harbin, 150030, China
| | - Junjiang Wu
- Soybean Research Institute of Heilongjiang Academy of Agricultural Sciences/Key Laboratory of Soybean Cultivation of Ministry of Agriculture P. R. China, Harbin, 150086, China
| | - Pengfei Xu
- Soybean Research Institute, Northeast Agricultural University/Key Laboratory of Soybean Biology of Chinese Education Ministry, Harbin, 150030, China
| | - Shuzhen Zhang
- Soybean Research Institute, Northeast Agricultural University/Key Laboratory of Soybean Biology of Chinese Education Ministry, Harbin, 150030, China
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11
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Sorafenib inhibits LPS-induced inflammation by regulating Lyn-MAPK-NF-kB/AP-1 pathway and TLR4 expression. Cell Death Dis 2022; 8:281. [PMID: 35680841 PMCID: PMC9184561 DOI: 10.1038/s41420-022-01073-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 05/07/2022] [Accepted: 05/27/2022] [Indexed: 11/30/2022]
Abstract
Sorafenib is an anti-tumor drug widely used in clinical treatment, which can inhibit tyrosine kinase receptor on cell surface and serine/threonine kinase in downstream Ras/MAPK cascade signaling pathway of cells. Tyrosine kinase phosphorylation plays an important role in inflammatory mechanism, such as TLR4 tyrosine phosphorylation, MAPK pathway protein activation, and activation of downstream NF-кB. However, the effects of sorafenib on LPS-induced inflammatory reaction and its specific mechanism have still remained unknown. We found that sorafenib inhibited the phosphorylation of tyrosine kinase Lyn induced by LPS, thereby reducing the phosphorylation level of p38 and JNK, inhibiting the activation of c-Jun and NF-κB, and then inhibiting the expression of inflammatory factors IL-6, IL-1β, and TNF-α. Furthermore, sorafenib also decreased the expression of TLR4 on the macrophage membrane to inhibit the expression of inflammatory factors latterly, which may be related to the inactivation of Lyn. These results provide a new perspective and direction for the clinical treatment of sepsis.
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12
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Qu F, Li J, She Q, Zeng X, Li Z, Lin Q, Tang J, Yan Y, Lu J, Li Y, Li X. Identification and characterization of MKK6 and AP-1 in Anodonta woodiana reveal their potential roles in the host defense response against bacterial challenge. FISH & SHELLFISH IMMUNOLOGY 2022; 124:261-272. [PMID: 35427776 DOI: 10.1016/j.fsi.2022.04.002] [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: 02/15/2022] [Revised: 03/30/2022] [Accepted: 04/02/2022] [Indexed: 06/14/2023]
Abstract
Mitogen-activated protein kinase kinase 6 (MKK6) and activator protein-1 (AP-1) are two of the essential regulatory proteins in the p38 mitogen-activated protein kinase (MAPK) pathway, which participates in the innate immune response to bacterial infections. In this study, molluscan MKK6 (AwMKK6) and AP-1 (AwAP-1) genes were cloned and identified from Anodonta woodiana. The open reading frame (ORF) of AwMKK6 encodes for a putative polypeptide sequence of 345 amino acids containing a conserved serine/threonine protein kinase (S_TKc) domain, a SVAKT motif and a DVD domain. AwAP-1 consists of 294 amino acids including a typical nuclear localization signal (NLS), a Jun domain and a basic region leucine zipper (BRLZ) domain. Quantitative real-time PCR analysis showed that both AwMKK6 and AwAP-1 were widely expressed in all selected tissues of A. woodiana and their transcript levels in hemocytes were significantly upregulated when challenged with Aeromonas hydrophila and lipopolysaccharide (LPS). Additionally, the signaling molecules of the AwMKK6/AwAP-1 pathway including AwTLR4, AwMyD88, AwTRAF6, AwMEKK1, AwMEKK4, AwASK1, AwTAK1 and Awp38 mRNA expression showed a stronger responsiveness to LPS challenge in hemocytes of A. woodiana. RNA interference (RNAi) experiments indicated that the silencing of AwMKK6 or AwAP-1 could decrease the mRNA expression levels of immune effectors (AwTNF, AwLYZ and AwDefense). Subcellular localization studies suggested that AwMKK6 and AwAP-1 were distributed throughout the cells and nucleus, respectively, and their overexpression could significantly enhance the transcriptional activities of AP-1-Luc in HEK293T cells. These findings suggest that MKK6 and AP-1 play a major role in the host defense response to bacterial injection, which may make contributions to a better understanding of the immune function of the p38 MAPK pathway in mollusks.
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Affiliation(s)
- Fufa Qu
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, 410022, China.
| | - Jialing Li
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, 410022, China
| | - Qing She
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, 410022, China
| | - Xuan Zeng
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, 410022, China
| | - Zhenpeng Li
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, 410022, China
| | - Qiang Lin
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, 410022, China
| | - Jie Tang
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, 410022, China
| | - Yuye Yan
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, 410022, China
| | - Jieming Lu
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, 410022, China
| | - Yumiao Li
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, 410022, China
| | - Xiaojie Li
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, 410022, China.
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Seong Choi K, Shin TS, Chun J, Ahn G, Jeong Han E, Kim MJ, Kim JB, Kim SH, Kho KH, Heon Kim D, Shim SY. Sargahydroquinoic acid isolated from Sargassum serratifolium as inhibitor of cellular basophils activation and passive cutaneous anaphylaxis in mice. Int Immunopharmacol 2022; 105:108567. [PMID: 35114442 DOI: 10.1016/j.intimp.2022.108567] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 01/10/2022] [Accepted: 01/20/2022] [Indexed: 11/19/2022]
Abstract
Basophils and mast cells are characteristic effector cells in allergic reactions. Sargahydorquinoic acid (SHQA), a compound isolated from Sargassum serratifolium (marine alga), possesses various biochemical properties, including potent antioxidant activities. The objective of the present study was to investigate inhibitory effects of SHQA on the activation of human basophilic KU812F cells induced by phorbol myristate acetate and A23187 (PMACI), a calcium ionophore. Furthermore, we confirmed the inhibitory effects of SHQA on the activation of rat basophilic leukemia (RBL)-2H3 cells induced by compound 48/80 (com 48/80), bone marrow-derived mast cells (BMCMCs) induced by anti-dinitrophenyl(DNP)-immunoglobulin E (IgE)/DNP-bovine serum albumin (BSA), DNP/IgE and on the reaction of passive cutaneous anaphylaxis (PCA) mediated by IgE. SHQA reduced PMACI-induced intracellular reactive oxygen species (ROS) and calcium levels. Western blot analysis revealed that SHQA downregulated the activation of ERK, p38, and NF-κB in a dose-dependent manner. Moreover, SHQA suppressed the production and gene expression of various cytokines, including interleukin (IL)-1 β, IL-4, IL-6, and IL-8 in PMACI-induced KU812F cells and IL-4 and tumor necrosis factor (TNF)- α in com 48/80-induced RBL-2H3 cells. It also determined the inhibition of PMACI, com 48/80- and IgE/DNP-induced degranulation by reducing the release of β -hexosaminidase. Furthermore, it attenuated the IgE/DNP-induced PCA reaction in the ears of BALB/c mice. These results suggest that SHQA isolated from S. serratifolium is a potential therapeutic functional food material for inhibiting effector cell activation in allergic reactions and anaphylaxis in animal model.
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Affiliation(s)
- Kap Seong Choi
- Department of Food Science and Biotechnology, Sunchon National University, Suncheon 57922, Republic of Korea
| | - Tai-Sun Shin
- Division of Food and Nutrition, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Jiyeon Chun
- Department of Food Science and Biotechnology, Sunchon National University, Suncheon 57922, Republic of Korea
| | - Ginnae Ahn
- Department of Marine Bio-Food Sciences, Chonnam National University, Yeosu 59626, Republic of Korea
| | - Eui Jeong Han
- Research Center for Healthcare and Biomedical Engineering, Chonnam National University, Yeosu 59626, Korea; Department of Food Technology and Nutrition, Chonnam National University, Yeosu 59626, Republic of Korea
| | - Min-Jong Kim
- Cell & Matrix Research Institute, Department of Pharmacology, Kyungpook National University School of Medicine, Daegu, Republic of Korea
| | - Jung-Beom Kim
- Department of Food Science and Biotechnology, Sunchon National University, Suncheon 57922, Republic of Korea
| | - Sang-Hyun Kim
- Cell & Matrix Research Institute, Department of Pharmacology, Kyungpook National University School of Medicine, Daegu, Republic of Korea
| | - Kang-Hee Kho
- Department of Fisheries Science, College of Fisheries and Ocean Sciences, Chonnam National University, Yeosu 59626, Republic of Korea
| | - Dae Heon Kim
- Department of Biology, Sunchon National University, Suncheon 57922, Republic of Korea
| | - Sun-Yup Shim
- Department of Food Science and Biotechnology, Sunchon National University, Suncheon 57922, Republic of Korea.
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14
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Mao W, Han Y, Chen Y, Sun M, Feng Q, Li L, Liu L, Zhang K, Wei L, Han Z, Li B. Low temperature inhibits anthocyanin accumulation in strawberry fruit by activating FvMAPK3-induced phosphorylation of FvMYB10 and degradation of Chalcone Synthase 1. THE PLANT CELL 2022; 34:1226-1249. [PMID: 35018459 PMCID: PMC8972286 DOI: 10.1093/plcell/koac006] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 01/05/2022] [Indexed: 05/07/2023]
Abstract
Low temperature causes poor coloration of strawberry (Fragaria sp.) fruits, thus greatly reducing their commercial value. Strawberry fruits accumulate anthocyanins during ripening, but how low temperature modulates anthocyanin accumulation in plants remains largely unknown. We identified MITOGEN-ACTIVATED PROTEIN KINASE3 (FvMAPK3) as an important negative regulator of anthocyanin accumulation that mediates the poor coloration of strawberry fruits in response to low temperature. FvMAPK3 activity was itself induced by low temperature, leading to the repression of anthocyanin accumulation via two mechanisms. Activated FvMAPK3 acted as the downstream target of MAPK KINASE4 (FvMKK4) and SUCROSE NONFERMENTING1-RELATED KINASE2.6 (FvSnRK2.6) to phosphorylate the transcription factor FvMYB10 and reduce its transcriptional activity. In parallel, FvMAPK3 phosphorylated CHALCONE SYNTHASE1 (FvCHS1) to enhance its proteasome-mediated degradation. These results not only provide an important reference to elucidate the molecular mechanisms underlying low-temperature-mediated repression of anthocyanin accumulation in plants, but also offer valuable candidate genes for generating strawberry varieties with high tolerance to low temperature and good fruit quality.
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Affiliation(s)
- Wenwen Mao
- Department of Pomology, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Yu Han
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding, National Engineering Research Center for Floriculture, Beijing Laboratory of Urban and Rural Ecological Environment, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, School of Landscape Architecture, Beijing Forestry University, Beijing, 100083, China
| | - Yating Chen
- Department of Pomology, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Mingzhu Sun
- Department of Pomology, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Qianqian Feng
- Department of Pomology, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Li Li
- Department of Pomology, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Liping Liu
- Department of Pomology, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Kaikai Zhang
- Department of Pomology, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Lingzhi Wei
- Department of Pomology, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Zhenhai Han
- Department of Pomology, College of Horticulture, China Agricultural University, Beijing, 100193, China
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing, China
| | - Bingbing Li
- Department of Pomology, College of Horticulture, China Agricultural University, Beijing, 100193, China
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing, China
- Author for correspondence:
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15
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Enomoto A, Fukasawa T, Terunuma H, Nakagawa K, Yoshizaki A, Sato S, Miyagawa K. Decrease in MAP3Ks expression enhances the cell death caused by hyperthermia. Int J Hyperthermia 2022; 39:200-208. [PMID: 35042442 DOI: 10.1080/02656736.2021.2024281] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
PURPOSE Hyperthermia is a promising anticancer treatment modality. However, the molecular mechanism underlying the thermal sensitivity of tumor cells is largely unknown. The aim of this study was to clarify how biochemical changes triggered by heat stimulate antitumor activity. METHODS AND MATERIALS The expression levels of various MAPK members in HeLa cells with or without hyperthermia were evaluated by western blotting and RT-PCR. The intracellular Ca2+ concentration [Ca2+]i was monitored by digital imaging using CaTM-2 AM. An in vitro cleavage assay was used to determine whether calcium-dependent protease calpain cleaves MAPK components. Cell proliferation and clonogenicity were assessed in the absence or presence of siRNAs targeting MAPK members. RESULTS Hyperthermia decreased the levels of MAP3K TAK1, RAF1 and MEKK2 but not of the downstream MAP2K and MAPK members. The hyperthermia-induced degradation of TAK1 and MEKK2 was rescued by either the proteasome inhibitor MG132 or the calpain inhibitor ALLN; however, RAF1 was not affected by the inhibitors. Heat induced down regulation of RAF1. Hyperthermia increased [Ca2+]i and calpain I expression. The calcium ionophore A23187 decreased TAK1 and MEKK2 levels. An in vitro cleavage assay demonstrated that TAK1 and MEKK2 are calpain I substrates. Knockdown of TAK1, RAF1 and MEKK2 suppressed cell proliferation and clonogenicity. CONCLUSIONS Hyperthermia decreased the levels of MAP3K TAK1, RAF1 and MEKK2, without reduction of the downstream components in the MAP3K-MAP2K-MAPK cascade, by a calpain-dependent degradation pathway or transcriptional regulation. TAK1, RAF1 and/or MEKK2 play crucial roles in cell proliferation and clonogenicity and are potential molecular targets for hyperthermia.
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Affiliation(s)
- Atsushi Enomoto
- Laboratory of Molecular Radiology, Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Takemichi Fukasawa
- Laboratory of Molecular Radiology, Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,Department of Dermatology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | | | - Keiichi Nakagawa
- Comprehensive Radiation Oncology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Ayumi Yoshizaki
- Department of Dermatology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Shinichi Sato
- Department of Dermatology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kiyoshi Miyagawa
- Laboratory of Molecular Radiology, Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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16
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Qiao Y, Yan W, He J, Liu X, Zhang Q, Wang X. Identification, evolution and expression analyses of mapk gene family in Japanese flounder (Paralichthys olivaceus) provide insight into its divergent functions on biotic and abiotic stresses response. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2021; 241:106005. [PMID: 34731643 DOI: 10.1016/j.aquatox.2021.106005] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 10/10/2021] [Accepted: 10/13/2021] [Indexed: 06/13/2023]
Abstract
Mitogen-activated protein kinase (MAPK) are a series of serine/threonine protein kinases showing evolutionary conservation, which can be activated by many stimulus signals and then transfer them from cell membrane to nucleus. MAPKs regulate a variety of biological processes, such as apoptosis, hormone signaling and immune response. In this study, 14 putative mapk genes in Japanese flounder were identified, and their basic physical and chemical properties were characterized. Phylogenetic analysis showed that mapk genes were divided into three main subfamilies, including ERK, JNK and the p38 MAPK. Selection pressure analysis revealed they were evolutionarily-constrained and undergone strong purifying selection. Gene structure and conserved protein motif comparison suggested high levels of conservation in members of mapk gene family. The expression patterns were further investigated in each embryonic and larval development stages and different tissues. In addition, RNA-seq analyses after bacteria and temperature stresses suggested mapk genes had different expression patterns. Three mapk genes showed significant differences in response to E. tarda challenge and five were induced significantly after temperature stress, indicating their potential functions. This systematic analysis provided valuable information for further understanding of the regulation mechanism of mapk gene family under different stresses in Japanese flounder.
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Affiliation(s)
- Yingjie Qiao
- Key Laboratory of Marine Genetics and Breeding, Ministry of Education, Ocean University of China, Qingdao, Shandong, China
| | - Weijie Yan
- Key Laboratory of Marine Genetics and Breeding, Ministry of Education, Ocean University of China, Qingdao, Shandong, China
| | - Jiayi He
- Key Laboratory of Marine Genetics and Breeding, Ministry of Education, Ocean University of China, Qingdao, Shandong, China
| | - Xiumei Liu
- College of Life Sciences, Yantai University, Yantai 264005, China
| | - Quanqi Zhang
- Key Laboratory of Marine Genetics and Breeding, Ministry of Education, Ocean University of China, Qingdao, Shandong, China
| | - Xubo Wang
- Key Laboratory of Marine Genetics and Breeding, Ministry of Education, Ocean University of China, Qingdao, Shandong, China.
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17
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Pseudophosphatases as Regulators of MAPK Signaling. Int J Mol Sci 2021; 22:ijms222212595. [PMID: 34830476 PMCID: PMC8622459 DOI: 10.3390/ijms222212595] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 11/17/2021] [Accepted: 11/18/2021] [Indexed: 01/03/2023] Open
Abstract
Mitogen-activated protein kinase (MAPK) signaling pathways are highly conserved regulators of eukaryotic cell function. These enzymes regulate many biological processes, including the cell cycle, apoptosis, differentiation, protein biosynthesis, and oncogenesis; therefore, tight control of the activity of MAPK is critical. Kinases and phosphatases are well established as MAPK activators and inhibitors, respectively. Kinases phosphorylate MAPKs, initiating and controlling the amplitude of the activation. In contrast, MAPK phosphatases (MKPs) dephosphorylate MAPKs, downregulating and controlling the duration of the signal. In addition, within the past decade, pseudoenzymes of these two families, pseudokinases and pseudophosphatases, have emerged as bona fide signaling regulators. This review discusses the role of pseudophosphatases in MAPK signaling, highlighting the function of phosphoserine/threonine/tyrosine-interacting protein (STYX) and TAK1-binding protein (TAB 1) in regulating MAPKs. Finally, a new paradigm is considered for this well-studied cellular pathway, and signal transduction pathways in general.
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18
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Xia Y, Cheng M, Hu Y, Li M, Shen L, Ji X, Cui X, Liu X, Wang W, Gao H. Combined transcriptomic and lipidomic analysis of D-4F ameliorating bleomycin-induced pulmonary fibrosis. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:1424. [PMID: 34733976 PMCID: PMC8506780 DOI: 10.21037/atm-21-3777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 08/26/2021] [Indexed: 11/06/2022]
Abstract
Background Idiopathic pulmonary fibrosis (IPF) is a progressive lung disease that leads to respiratory failure, and for which there is no effective treatment. Apolipoprotein A-1 (ApoA-1) has been reported to ameliorate the bleomycin (BLM)-induced IPF model. Methods To examine the function of D-4F, an ApoA-1 mimetic polypeptide, in IPF, we used an in-vivo BLM-induced model. We assigned mice into the following 3 groups: the Blank Group (BLK Group), the Bleomycin Treatment Group (Model Group), and the D-4F Interference Group (Inter Group). The BLM-induced fibrosis was examined by hematoxylin and eosin, Masson’s trichrome (M-T) staining and immunohistochemical staining. An untargeted lipidomic and transcriptomic analysis were used to examine the function of D-4F. Results There were 35 differentially altered lipids (DALs) in the BLK, Model and Inter Groups. A Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis showed that glycerophospholipid metabolism was the most highly enriched of the 35 DALs. There were 99 differentially expressed genes (DEGs) in the BLK, Model and Inter Groups. The enriched KEGG pathway analysis showed that the mitogen-activated protein kinase (MAPK) pathway was 1 of the top 10 pathways. The results of the untargeted lipidomic and transcriptomic analysis showed that phospholipase A2 group 4c (Pla2g4c) was a crucial gene in both the MAPK pathway and glycerophospholipid metabolism. Pla2g4c was increased in the Model Group but decreased in the Inter Group. Conclusions It may be that D-4F prevented the BLM-induced pulmonary fibrosis model by inhibiting the expression of pla2g4c. Our findings suggest that D-4F may be a potential treatment of IPF.
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Affiliation(s)
- Yong Xia
- Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China.,Shandong provincial Key Laboratory of Cardiovascular Proteomics, Shandong University, Jinan, China
| | - Mei Cheng
- Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China.,Shandong provincial Key Laboratory of Cardiovascular Proteomics, Shandong University, Jinan, China
| | - Yanyan Hu
- Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China.,Shandong provincial Key Laboratory of Cardiovascular Proteomics, Shandong University, Jinan, China
| | - Man Li
- Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China.,Shandong provincial Key Laboratory of Cardiovascular Proteomics, Shandong University, Jinan, China
| | - Lin Shen
- Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China.,Shandong provincial Key Laboratory of Cardiovascular Proteomics, Shandong University, Jinan, China
| | - Xiang Ji
- Department of Respiratory, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Institute of Respiratory Diseases, Jinan, China
| | - Xiaopei Cui
- Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China.,Shandong provincial Key Laboratory of Cardiovascular Proteomics, Shandong University, Jinan, China
| | - Xiangju Liu
- Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China.,Shandong provincial Key Laboratory of Cardiovascular Proteomics, Shandong University, Jinan, China
| | - Weiling Wang
- Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China.,Shandong provincial Key Laboratory of Cardiovascular Proteomics, Shandong University, Jinan, China
| | - Haiqing Gao
- Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China.,Shandong provincial Key Laboratory of Cardiovascular Proteomics, Shandong University, Jinan, China
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19
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Pyrimidine Biosynthetic Enzyme CAD: Its Function, Regulation, and Diagnostic Potential. Int J Mol Sci 2021; 22:ijms221910253. [PMID: 34638594 PMCID: PMC8508918 DOI: 10.3390/ijms221910253] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 09/18/2021] [Accepted: 09/19/2021] [Indexed: 01/10/2023] Open
Abstract
CAD (Carbamoyl-phosphate synthetase 2, Aspartate transcarbamoylase, and Dihydroorotase) is a multifunctional protein that participates in the initial three speed-limiting steps of pyrimidine nucleotide synthesis. Over the past two decades, extensive investigations have been conducted to unmask CAD as a central player for the synthesis of nucleic acids, active intermediates, and cell membranes. Meanwhile, the important role of CAD in various physiopathological processes has also been emphasized. Deregulation of CAD-related pathways or CAD mutations cause cancer, neurological disorders, and inherited metabolic diseases. Here, we review the structure, function, and regulation of CAD in mammalian physiology as well as human diseases, and provide insights into the potential to target CAD in future clinical applications.
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20
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Yamamoto M, Nagasawa Y, Fujimori K. Glycyrrhizic acid suppresses early stage of adipogenesis through repression of MEK/ERK-mediated C/EBPβ and C/EBPδ expression in 3T3-L1 cells. Chem Biol Interact 2021; 346:109595. [PMID: 34302803 DOI: 10.1016/j.cbi.2021.109595] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/12/2021] [Accepted: 07/20/2021] [Indexed: 12/15/2022]
Abstract
Glycyrrhizic acid (GA), a major constituent of the root of licorice (Glycyrrhiza glabra), and has various biological activities, including anti-obesity property. However, the molecular mechanism of anti-adipogenic effect of GA is still unclear. In this study, we investigated the anti-adipogenic effects of GA in mouse adipocytic 3T3-L1 cells and elucidated its underlying molecular mechanism. GA decreased the intracellular triglyceride level. The expression levels of the adipogenic and lipogenic genes were lowered by treatment with GA in a concertation-dependent manner. In contrast, GA did not affect the lipolytic gene expression and the released glycerol level. GA suppressed the early stage of adipogenesis when it was added for 0-3 h after initiation of adipogenesis. Moreover, GA reduced the mRNA levels of CCAAT/enhancer binding protein (C/EBP) β and C/EBPδ, both of which activate the early stage of adipogenesis. Furthermore, GA decreased phosphorylation of extracellular signal-regulated kinase [ERK: p44/42 mitogen-activated protein kinase (MAPK)] in the early stage of adipogenesis. In addition, a MAPK kinase (MEK) inhibitor, PD98059 reduced the C/EBPβ and C/EBPδ gene expression. These results indicate that GA suppressed the early stage of adipogenesis through repressing the MEK/ERK-mediated C/EBPβ and C/EBPδ expression in 3T3-L1 cells. Thus, GA has an anti-adipogenic ability and a possible agent for treatment of obesity.
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Affiliation(s)
- Masayuki Yamamoto
- Department of Pathobiochemistry, Faculty of Pharmacy, Osaka Medical and Pharmaceutical University, 4-20-1 Nasahara, Takatsuki, Osaka, 569-1094, Japan
| | - Yasuna Nagasawa
- Department of Pathobiochemistry, Faculty of Pharmacy, Osaka Medical and Pharmaceutical University, 4-20-1 Nasahara, Takatsuki, Osaka, 569-1094, Japan
| | - Ko Fujimori
- Department of Pathobiochemistry, Faculty of Pharmacy, Osaka Medical and Pharmaceutical University, 4-20-1 Nasahara, Takatsuki, Osaka, 569-1094, Japan.
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21
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Matsumoto N, Nemoto-Sasaki Y, Oka S, Arai S, Wada I, Yamashita A. Phosphorylation of human phospholipase A1 DDHD1 at newly identified phosphosites affects its subcellular localization. J Biol Chem 2021; 297:100851. [PMID: 34089703 PMCID: PMC8234217 DOI: 10.1016/j.jbc.2021.100851] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 05/17/2021] [Accepted: 06/01/2021] [Indexed: 02/06/2023] Open
Abstract
Phospholipase A1 (PLA1) hydrolyzes the fatty acids of glycerophospholipids, which are structural components of the cellular membrane. Genetic mutations in DDHD1, an intracellular PLA1, result in hereditary spastic paraplegia (HSP) in humans. However, the regulation of DDHD1 activity has not yet been elucidated in detail. In the present study, we examined the phosphorylation of DDHD1 and identified the responsible protein kinases. We performed MALDI-TOF MS/MS analysis and Phos-tag SDS-PAGE in alanine-substitution mutants in HEK293 cells and revealed multiple phosphorylation sites in human DDHD1, primarily Ser8, Ser11, Ser723, and Ser727. The treatment of cells with a protein phosphatase inhibitor induced the hyperphosphorylation of DDHD1, suggesting that multisite phosphorylation occurred not only at these major, but also at minor sites. Site-specific kinase-substrate prediction algorithms and in vitro kinase analyses indicated that cyclin-dependent kinase CDK1/cyclin A2 phosphorylated Ser8, Ser11, and Ser727 in DDHD1 with a preference for Ser11 and that CDK5/p35 also phosphorylated Ser11 and Ser727 with a preference for Ser11. In addition, casein kinase CK2α1 was found to phosphorylate Ser104, although this was not a major phosphorylation site in cultivated HEK293 cells. The evaluation of the effects of phosphorylation revealed that the phosphorylation mimic mutants S11/727E exhibit only 20% reduction in PLA1 activity. However, the phosphorylation mimics were mainly localized to focal adhesions, whereas the phosphorylation-resistant mutants S11/727A were not. This suggested that phosphorylation alters the subcellular localization of DDHD1 without greatly affecting its PLA1 activity.
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Affiliation(s)
- Naoki Matsumoto
- Faculty of Pharma-Science, Teikyo University, Itabashi-Ku, Tokyo, Japan
| | | | - Saori Oka
- Faculty of Pharma-Science, Teikyo University, Itabashi-Ku, Tokyo, Japan
| | - Seisuke Arai
- Department of Cell Science, Institute of Biomedical Sciences, Fukushima Medical University School of Medicine, Fukushima City, Fukushima, Japan
| | - Ikuo Wada
- Department of Cell Science, Institute of Biomedical Sciences, Fukushima Medical University School of Medicine, Fukushima City, Fukushima, Japan
| | - Atsushi Yamashita
- Faculty of Pharma-Science, Teikyo University, Itabashi-Ku, Tokyo, Japan.
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22
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Luo W, Li L, Xu W, Zhang J, Xu J. Toxic Effects of Docosahexaenoic Acid Treatment in the Rat Liver BRL-3A Cell. TOXICS 2021; 9:toxics9050112. [PMID: 34065295 PMCID: PMC8160770 DOI: 10.3390/toxics9050112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 05/12/2021] [Accepted: 05/18/2021] [Indexed: 11/16/2022]
Abstract
The cytotoxicity of docosahexaenoic acid (DHA) on normal cells is still unclear. This study investigated the effects of DHA on the cytotoxicity and possible mechanism in the BRL-3A cell. The cultured rat liver BRL-3A cell line was treated with 50, 100 and 200 μM DHA for 24 h. The cell viability was increased in the 50 and 100 μM DHA treatments, but decreased in the 200 μM DHA treatment. The 50, 100 and 200 μM DHA treatments increased the proportion of the apoptotic cells, the levels of lactate dehydrogenase (LDH), alkaline phosphatase (AKP) and IL-6 in the supernatant, and the ratio of the phosphonated p38MAPK to the p38MAPK (p-p38/p38) protein in the cells. The expression of TGF beta-activated kinase 1 (TAK1), nuclear transcription factor-κB p65 (NF-κB p65) and the inhibitor of NF-κB alpha (IκBα) mRNA, and the ratio of the phosphonated IκBα (p-IκBα) to IκBα protein were increased in the 200 μM DHA treatment, while the ratio of phosphonated extracellular regulated protein kinases (p-ERK) to ERK protein was decreased in the 200 μM DHA treatment. These results indicate that DHA-treated (50, 100 and 200 μM) BRL-3A cells for 24 h promotes cell apoptosis and inflammatory response, and the p38 MAPK, ERK and NF-κB signal pathways were involved in mediating the apoptosis and inflammatory response.
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23
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Brüggemann Y, Karajannis LS, Stanoev A, Stallaert W, Bastiaens PIH. Growth factor-dependent ErbB vesicular dynamics couple receptor signaling to spatially and functionally distinct Erk pools. Sci Signal 2021; 14:14/683/eabd9943. [PMID: 34006609 DOI: 10.1126/scisignal.abd9943] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Growth factor-dependent vesicular dynamics allow cells to regulate the spatial distribution of growth factor receptors and thereby their coupling to downstream signaling effectors that guide cellular responses. We found that the ErbB ligands epidermal growth factor (EGF) and heregulin (HRG) generated distinct spatiotemporal patterns of cognate receptor activities to activate distinct subcellular pools of the extracellular signal-regulated kinase (Erk). Sustained plasma membrane activity of the receptor tyrosine kinases ErbB2/ErbB3 signaled to Erk complexed with the scaffold protein KSR to promote promigratory EphA2 phosphorylation and cellular motility upon HRG stimulation. In contrast, receptor-saturating EGF stimuli caused proliferation-inducing transient activation of cytoplasmic Erk due to the rapid internalization of EGF receptors (EGFR or ErbB1) toward endosomes. Paradoxically, promigratory signaling mediated by Erk complexed to KSR was sustained at low EGF concentrations by vesicular recycling that maintained steady-state amounts of active, phosphorylated EGFR at the plasma membrane. Thus, the effect of ligand identity and concentration on determining ErbB vesicular dynamics constitutes a mechanism by which cells can transduce growth factor composition through spatially distinct Erk pools to enable functionally diverse cellular responses.
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Affiliation(s)
- Yannick Brüggemann
- Department of Systemic Cell Biology, Max Planck Institute of Molecular Physiology, Otto-Hahn-Str.11, 44227 Dortmund, Germany.,Faculty of Chemistry and Chemical Biology, TU Dortmund, Otto-Hahn-Str. 6, 44227 Dortmund, Germany
| | - Lisa S Karajannis
- Department of Systemic Cell Biology, Max Planck Institute of Molecular Physiology, Otto-Hahn-Str.11, 44227 Dortmund, Germany
| | - Angel Stanoev
- Department of Systemic Cell Biology, Max Planck Institute of Molecular Physiology, Otto-Hahn-Str.11, 44227 Dortmund, Germany
| | - Wayne Stallaert
- Department of Systemic Cell Biology, Max Planck Institute of Molecular Physiology, Otto-Hahn-Str.11, 44227 Dortmund, Germany
| | - Philippe I H Bastiaens
- Department of Systemic Cell Biology, Max Planck Institute of Molecular Physiology, Otto-Hahn-Str.11, 44227 Dortmund, Germany. .,Faculty of Chemistry and Chemical Biology, TU Dortmund, Otto-Hahn-Str. 6, 44227 Dortmund, Germany
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24
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Xin J, Li C, Ning K, Qin Y, Shang JX, Sun Y. AtPFA-DSP3, an atypical dual-specificity protein tyrosine phosphatase, affects salt stress response by modulating MPK3 and MPK6 activity. PLANT, CELL & ENVIRONMENT 2021; 44:1534-1548. [PMID: 33464564 DOI: 10.1111/pce.14002] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 01/03/2021] [Accepted: 01/05/2021] [Indexed: 06/12/2023]
Abstract
Protein phosphorylation, especially serine/threonine and tyrosine phosphorylation, plays significant roles in signalling during plant growth and development as well as plant responses to biotic or abiotic stresses. Dual-specificity protein tyrosine phosphatases dephosphorylate components of these signalling pathways. Here, we report that an atypical dual-specificity protein tyrosine phosphatase, AtPFA-DSP3 (DSP3), negatively affects the response of plants to high-salt conditions. A DSP3 loss-of-function mutant showed reduced sensitivity to salt treatment. DSP3 was primarily localized in nuclei and was degraded during salt treatment. Compared to wild type, the level of ROS was lower in the dsp3 mutant and higher in plants ectopically expressing DSP3, indicating that higher DSP3 level was associated with increased ROS production. DSP3 interacted with and dephosphorylated MPK3 and MPK6. Genetic analyses of a dsp3mpk3 double mutant revealed that DSP3's effect on salt stress depends on MPK3. Moreover, the phosphatase activity of DSP3 was required for its role in salt signalling. These results indicate that DSP3 is a negative regulator of salt responses in Arabidopsis by directly modulating the accumulation of phosphorylated MPK3 and MPK6.
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Affiliation(s)
- Jing Xin
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Collaboration Innovation Center for Cell Signaling, Hebei Key Laboratory of Molecular and Cellular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, China
| | - Chuanling Li
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Collaboration Innovation Center for Cell Signaling, Hebei Key Laboratory of Molecular and Cellular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, China
| | - Kexin Ning
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Collaboration Innovation Center for Cell Signaling, Hebei Key Laboratory of Molecular and Cellular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, China
| | - Yuan Qin
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Collaboration Innovation Center for Cell Signaling, Hebei Key Laboratory of Molecular and Cellular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, China
| | - Jian-Xiu Shang
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Collaboration Innovation Center for Cell Signaling, Hebei Key Laboratory of Molecular and Cellular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, China
| | - Yu Sun
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Collaboration Innovation Center for Cell Signaling, Hebei Key Laboratory of Molecular and Cellular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, China
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25
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Liu J, Chen L, Huang J, Guo S, Zhu D, Gao P. Transient Receptor Potential Melastatin 7 Promotes Vascular Adventitial Fibroblasts Phenotypic Transformation and Inflammatory Reaction Induced by Mechanical Stretching Stress via p38 MAPK/JNK Pathway. J Vasc Res 2021; 58:108-120. [PMID: 33494094 DOI: 10.1159/000512595] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 10/23/2020] [Indexed: 11/19/2022] Open
Abstract
Remodeling of the arteries is one of the pathological bases of hypertension. We have previously shown that transient receptor potential melastatin 7 (TRPM7) aggravates the vascular adventitial remodeling caused by pressure overload in the transverse aortic constriction (TAC) model. In this study, we sought to explore the functional expression and downstream signaling of TRPM7 in vascular adventitial fibroblasts (AFs) stimulated by mechanical stretching stress (MSS). The expression of TRPM7 was upregulated with a concomitant translocation to the cytoplasm in the AFs stimulated with 20% MSS. Meanwhile, the expression of α-smooth muscle actin (α-SMA), a marker of transformation from AFs to myofibroblasts (MFs) was also increased. Moreover, AF-conditioned medium caused a significant migration of macrophages after treatment with MSS and contained high levels of monocyte chemotactic protein-1 (MCP-1), interleukin-6 (IL-6), interleukin-8 (IL-8), and tumor necrosis factor-α (TNF-α). Pharmacological and RNA interference approaches using the TRPM7 inhibitor 2-aminoethoxydiphenyl borate (2-APB) and specific anti-TRPM7 small interfering RNA (si-RNA-TRPM7) abrogated these changes significantly. Further exploration uncloaked that inhibition of TRPM7 reduced the phosphorylation of p38 MAP kinase (p38MAPK) and c-Jun N-terminal kinase (JNK) in the AFs stimulated with MSS. Furthermore, inhibition of the phosphorylation of p38MAPK or JNK could also alleviate the MSS-induced expression of α-SMA and secretion of inflammatory factors. These observations indicate that activated TRPM7 participates in the phenotypic transformation and inflammatory action of AFs in response to MSS through the p38MAPK/JNK pathway and suggest that TRPM7 may be a potential therapeutic target for vascular remodeling caused by hemodynamic changes in hypertension.
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Affiliation(s)
- Jiachen Liu
- Department of Cardiovascular Medicine, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Laijiang Chen
- Department of Cardiology, Ningbo Medical Center Lihuili Hospital, Zhejiang, Ningbo, China
| | - Jun Huang
- Department of Cardiovascular Medicine, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shujie Guo
- Department of Cardiovascular Medicine, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China,
| | - Dingliang Zhu
- Department of Cardiovascular Medicine, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Pingjin Gao
- Department of Cardiovascular Medicine, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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26
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Lee TH, Liu PS, Tsai MM, Chen JL, Wang SJ, Hsieh HL. The COX-2-derived PGE 2 autocrine contributes to bradykinin-induced matrix metalloproteinase-9 expression and astrocytic migration via STAT3 signaling. Cell Commun Signal 2020; 18:185. [PMID: 33228717 PMCID: PMC7685582 DOI: 10.1186/s12964-020-00680-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Accepted: 11/02/2020] [Indexed: 12/14/2022] Open
Abstract
Background The matrix metalloproteinase-9 (MMP-9) is up-regulated by several proinflammatory mediators in the central nervous system (CNS) diseases. Increasing reports show that MMP-9 expression is an inflammatory biomarker of several CNS disorders, including the CNS inflammation and neurodegeneration. Bradykinin (BK) is a common proinflammatory mediator and elevated in several brain injury and inflammatory disorders. The raised BK may be detrimental effects on the CNS that may aggravate brain inflammation through MMP-9 up-regulation or cyclooxygenase-2 (COX-2)-derived prostaglandin E2 (PGE2) production in brain astrocytes. However, the relationship between BK-induced MMP-9 expression and COX-2-derived PGE2 release in brain astrocytes remains unclear. Methods Herein we used rat brain astrocytes (RBA) to investigate the role of the COX-2/PGE2 system in BK-induced MMP-9 expression. We used zymographic, RT-PCR, EIA, and Western blotting analyses to confirm that BK induces MMP-9 expression via a COX-2/PGE2-dependent pathway. Results Our results show activation of native COX-2 by BK led to PGE2 production and release. Subsequently, PGE2 induced MMP-9 expression via PGE2 receptor (EP)-mediated c-Src, Jak2, ERK1/2, and then activated signal transducer and activator of transcription 3 (STAT3) signaling pathway. Finally, up-regulation of MMP-9 by BK via the pathway may promote astrocytic migration. Conclusion These results demonstrated that a novel autocrine pathway for BK-induced MMP-9 protein expression is mediated through activation of STAT3 by native COX-2/PGE2-mediated c-Src/Jak2/ERK cascades in brain astrocytes. Video Abstract
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Affiliation(s)
- Tsong-Hai Lee
- Stroke Center and Stroke Section, Department of Neurology, Chang Gung Memorial Hospital, Linkou Medical Center, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Pei-Shan Liu
- Department of Microbiology, Soochow University, Taipei, Taiwan
| | - Ming-Ming Tsai
- Department of Nursing, Division of Basic Medical Sciences, Research Center for Chinese Herbal Medicine, Graduate Institute of Health Industry Technology, Chang Gung University of Science and Technology, 261 Wenhua 1st Road, Guishan, Taoyuan, Taiwan.,Department of General Surgery, Chang Gung Memorial Hospital, Chiayi, Taiwan
| | - Jiun-Liang Chen
- Division of Chinese Internal Medicine, Center for Traditional Chinese Medicine, Chang Gung Memorial Hospital, School of Traditional Chinese Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Su-Jane Wang
- School of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan
| | - Hsi-Lung Hsieh
- Department of Nursing, Division of Basic Medical Sciences, Research Center for Chinese Herbal Medicine, Graduate Institute of Health Industry Technology, Chang Gung University of Science and Technology, 261 Wenhua 1st Road, Guishan, Taoyuan, Taiwan. .,Department of Neurology, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
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27
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Vahedi-Shahandashti R, Lass-Flörl C. Novel Antifungal Agents and Their Activity against Aspergillus Species. J Fungi (Basel) 2020; 6:E213. [PMID: 33050302 PMCID: PMC7711508 DOI: 10.3390/jof6040213] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 09/30/2020] [Accepted: 10/07/2020] [Indexed: 12/11/2022] Open
Abstract
There is a need for new antifungal agents, mainly due to increased incidence of invasive fungal infections (IFI), high frequency of associated morbidity and mortality and limitations of the current antifungal agents (e.g., toxicity, drug-drug interactions, and resistance). The clinically available antifungals for IFI are restricted to four main classes: polyenes, flucytosine, triazoles, and echinocandins. Several antifungals are hampered by multiple resistance mechanisms being present in fungi. Consequently, novel antifungal agents with new targets and modified chemical structures are required to combat fungal infections. This review will describe novel antifungals, with a focus on the Aspergillus species.
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Affiliation(s)
| | - Cornelia Lass-Flörl
- Institute of Hygiene and Medical Microbiology, Medical University Innsbruck, 6020 Innsbruck, Austria;
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28
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MAPK cascade gene family in Camellia sinensis: In-silico identification, expression profiles and regulatory network analysis. BMC Genomics 2020; 21:613. [PMID: 32894062 PMCID: PMC7487466 DOI: 10.1186/s12864-020-07030-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 08/27/2020] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND Mitogen Activated Protein Kinase (MAPK) cascade is a fundamental pathway in organisms for signal transduction. Though it is well characterized in various plants, there is no systematic study of this cascade in tea. RESULT In this study, 5 genes of Mitogen Activated Protein Kinase Kinase (MKK) and 16 genes of Mitogen Activated Protein Kinase (MPK) in Camellia sinensis were found through a genome-wide search taking Arabidopsis thaliana as the reference genome. Also, phylogenetic relationships along with structural analysis which includes gene structure, location as well as protein conserved motifs and domains, were systematically examined and further, predictions were validated by the results. The plant species taken for comparative study clearly displayed segmental duplication, which was a significant candidate for MAPK cascade expansion. Also, functional interaction was carried out in C. sinensis based on the orthologous genes in Arabidopsis. The expression profiles linked to various stress treatments revealed wide involvement of MAPK and MAPKK genes from Tea in response to various abiotic factors. In addition, the expression of these genes was analysed in various tissues. CONCLUSION This study provides the targets for further comprehensive identification, functional study, and also contributed for a better understanding of the MAPK cascade regulatory network in C. sinensis.
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Choo WT, Teoh ML, Phang SM, Convey P, Yap WH, Goh BH, Beardall J. Microalgae as Potential Anti-Inflammatory Natural Product Against Human Inflammatory Skin Diseases. Front Pharmacol 2020; 11:1086. [PMID: 32848730 PMCID: PMC7411303 DOI: 10.3389/fphar.2020.01086] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Accepted: 07/03/2020] [Indexed: 01/06/2023] Open
Abstract
The skin is the first line of defense against pathogen and other environmental pollutant. The body is constantly exposed to reactive oxygen species (ROS) that stimulates inflammatory process in the skin. Many studies have linked ROS to various inflammatory skin diseases. Patients with skin diseases face various challenges with inefficient and inappropriate treatment in managing skin diseases. Overproduction of ROS in the body will result in oxidative stress which will lead to various cellular damage and alter normal cell function. Multiple signaling pathways are seen to have significant effects during ROS-mediated oxidative stress. In this review, microalgae have been selected as a source of natural-derived antioxidant to combat inflammatory skin diseases that are prominent in today’s society. Several studies have demonstrated that bioactive compounds isolated from microalgae have anti-inflammation and anti-oxidative properties that can help remedy various skin diseases. These compounds are able to inhibit production of pro-inflammatory cytokines and reduce the expression of inflammatory genes. Bioactive compounds from microalgae work in action by altering enzyme activities, regulating cellular activities, targeting major signaling pathways related to inflammation.
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Affiliation(s)
- Wu-Thong Choo
- School of Biosciences, Taylor's University, Lakeside Campus, Subang Jaya, Malaysia
| | - Ming-Li Teoh
- School of Biosciences, Taylor's University, Lakeside Campus, Subang Jaya, Malaysia.,Institute of Ocean and Earth Sciences, University of Malaya, Kuala Lumpur, Malaysia.,National Antarctic Research Centre, Institute of Graduate Studies, University of Malaya, Kuala Lumpur, Malaysia
| | - Siew-Moi Phang
- Institute of Ocean and Earth Sciences, University of Malaya, Kuala Lumpur, Malaysia.,Faculty of Applied Sciences, UCSI University, Kuala Lumpur, Malaysia
| | - Peter Convey
- British Antarctic Survey, NERC, Cambridge, United Kingdom
| | - Wei-Hsum Yap
- School of Biosciences, Taylor's University, Lakeside Campus, Subang Jaya, Malaysia
| | - Bey-Hing Goh
- Biofunctional Molecule Exploratory Research Group (BMEX), School of Pharmacy, Monash University Malaysia, Bandar Sunway, Malaysia.,College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - John Beardall
- School of Biological Sciences, Monash University, Clayton, VIC, Australia
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30
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Semba T, Sammons R, Wang X, Xie X, Dalby KN, Ueno NT. JNK Signaling in Stem Cell Self-Renewal and Differentiation. Int J Mol Sci 2020; 21:E2613. [PMID: 32283767 PMCID: PMC7177258 DOI: 10.3390/ijms21072613] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 04/07/2020] [Accepted: 04/07/2020] [Indexed: 12/13/2022] Open
Abstract
C-JUN N-terminal kinases (JNKs), which belong to the mitogen-activated protein kinase (MAPK) family, are evolutionarily conserved kinases that mediate cell responses to various types of extracellular stress insults. They regulate physiological processes such as embryonic development and tissue regeneration, playing roles in cell proliferation and programmed cell death. JNK signaling is also involved in tumorigenesis and progression of several types of malignancies. Recent studies have shown that JNK signaling has crucial roles in regulating the traits of cancer stem cells (CSCs). Here we describe the functions of the JNK signaling pathway in self-renewal and differentiation, which are essential features of various types of stem cells, such as embryonic, induced pluripotent, and adult tissue-specific stem cells. We also review current knowledge of JNK signaling in CSCs and discuss its role in maintaining the CSC phenotype. A better understanding of JNK signaling as an essential regulator of stemness may provide a basis for the development of regenerative medicine and new therapeutic strategies against malignant tumors.
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Affiliation(s)
- Takashi Semba
- Section of Translational Breast Cancer Research, Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (T.S.); (X.W.); (X.X.)
- Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Rachel Sammons
- Division of Chemical Biology and Medicinal Chemistry, College of Pharmacy, The University of Texas at Austin, Austin, TX 78712, USA; (R.S.); (K.N.D.)
| | - Xiaoping Wang
- Section of Translational Breast Cancer Research, Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (T.S.); (X.W.); (X.X.)
- Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Xuemei Xie
- Section of Translational Breast Cancer Research, Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (T.S.); (X.W.); (X.X.)
- Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Kevin N. Dalby
- Division of Chemical Biology and Medicinal Chemistry, College of Pharmacy, The University of Texas at Austin, Austin, TX 78712, USA; (R.S.); (K.N.D.)
- Department of Oncology, Dell Medical School, The University of Texas at Austin, Austin, TX 78712, USA
| | - Naoto T. Ueno
- Section of Translational Breast Cancer Research, Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (T.S.); (X.W.); (X.X.)
- Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
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Hamarsheh S, Osswald L, Saller BS, Unger S, De Feo D, Vinnakota JM, Konantz M, Uhl FM, Becker H, Lübbert M, Shoumariyeh K, Schürch C, Andrieux G, Venhoff N, Schmitt-Graeff A, Duquesne S, Pfeifer D, Cooper MA, Lengerke C, Boerries M, Duyster J, Niemeyer CM, Erlacher M, Blazar BR, Becher B, Groß O, Brummer T, Zeiser R. Oncogenic Kras G12D causes myeloproliferation via NLRP3 inflammasome activation. Nat Commun 2020; 11:1659. [PMID: 32246016 PMCID: PMC7125138 DOI: 10.1038/s41467-020-15497-1] [Citation(s) in RCA: 87] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Accepted: 03/11/2020] [Indexed: 12/03/2022] Open
Abstract
Oncogenic Ras mutations occur in various leukemias. It was unclear if, besides the direct transforming effect via constant RAS/MEK/ERK signaling, an inflammation-related effect of KRAS contributes to the disease. Here, we identify a functional link between oncogenic KrasG12D and NLRP3 inflammasome activation in murine and human cells. Mice expressing active KrasG12D in the hematopoietic system developed myeloproliferation and cytopenia, which is reversed in KrasG12D mice lacking NLRP3 in the hematopoietic system. Therapeutic IL-1-receptor blockade or NLRP3-inhibition reduces myeloproliferation and improves hematopoiesis. Mechanistically, KrasG12D-RAC1 activation induces reactive oxygen species (ROS) production causing NLRP3 inflammasome-activation. In agreement with our observations in mice, patient-derived myeloid leukemia cells exhibit KRAS/RAC1/ROS/NLRP3/IL-1β axis activity. Our findings indicate that oncogenic KRAS not only act via its canonical oncogenic driver function, but also enhances the activation of the pro-inflammatory RAC1/ROS/NLRP3/IL-1β axis. This paves the way for a therapeutic approach based on immune modulation via NLRP3 blockade in KRAS-mutant myeloid malignancies.
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Affiliation(s)
- Shaima'a Hamarsheh
- Department of Medicine I, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- Faculty of Biology, University of Freiburg, Freiburg, Germany
| | - Lena Osswald
- Department of Medicine I, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Benedikt S Saller
- Faculty of Biology, University of Freiburg, Freiburg, Germany
- Institute of Neuropathology, University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Susanne Unger
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Donatella De Feo
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Janaki Manoja Vinnakota
- Department of Medicine I, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- Faculty of Biology, University of Freiburg, Freiburg, Germany
| | - Martina Konantz
- Department of Biomedicine, University of Basel and University Hospital Basel, Basel, Switzerland
| | - Franziska M Uhl
- Department of Medicine I, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- Faculty of Biology, University of Freiburg, Freiburg, Germany
| | - Heiko Becker
- Department of Medicine I, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Michael Lübbert
- Department of Medicine I, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Khalid Shoumariyeh
- Department of Medicine I, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Christoph Schürch
- Department of Biomedicine, University of Basel and University Hospital Basel, Basel, Switzerland
| | - Geoffroy Andrieux
- Institute of Medical Bioinformatics and Systems Medicine, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Nils Venhoff
- Clinic for Rheumatology and Clinical Immunology, University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | | | - Sandra Duquesne
- Department of Medicine I, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Dietmar Pfeifer
- Department of Medicine I, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Matthew A Cooper
- Institute for Molecular Bioscience, University of Queensland, Brisbane, Australia
| | - Claudia Lengerke
- Department of Biomedicine, University of Basel and University Hospital Basel, Basel, Switzerland
| | - Melanie Boerries
- Institute of Medical Bioinformatics and Systems Medicine, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- German Cancer Consortium (DKTK) Partner Site Freiburg, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Comprehensive Cancer Centre Freiburg (CCCF), University of Freiburg, Freiburg, Germany
| | - Justus Duyster
- Department of Medicine I, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- German Cancer Consortium (DKTK) Partner Site Freiburg, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Comprehensive Cancer Centre Freiburg (CCCF), University of Freiburg, Freiburg, Germany
| | - Charlotte M Niemeyer
- German Cancer Consortium (DKTK) Partner Site Freiburg, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Comprehensive Cancer Centre Freiburg (CCCF), University of Freiburg, Freiburg, Germany
- Division of Pediatric Hematology and Oncology, Department of Pediatrics and Adolescent Medicine, University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Miriam Erlacher
- German Cancer Consortium (DKTK) Partner Site Freiburg, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Comprehensive Cancer Centre Freiburg (CCCF), University of Freiburg, Freiburg, Germany
- Division of Pediatric Hematology and Oncology, Department of Pediatrics and Adolescent Medicine, University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Bruce R Blazar
- Division of Blood and Marrow Transplantation, Department of Pediatrics, Masonic Cancer Center, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Burkard Becher
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Olaf Groß
- Institute of Neuropathology, University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- Centre for Biological Signalling Studies (BIOSS) and Centre for Integrative Biological Signalling Studies (CIBSS), University of Freiburg, Freiburg, Germany
| | - Tilman Brummer
- German Cancer Consortium (DKTK) Partner Site Freiburg, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Comprehensive Cancer Centre Freiburg (CCCF), University of Freiburg, Freiburg, Germany
- Institute of Molecular Medicine and Cell Research (IMMZ), Faculty of Medicine, University of Freiburg, Freiburg, Germany
- Centre for Biological Signalling Studies (BIOSS), University of Freiburg, Freiburg, Germany
| | - Robert Zeiser
- Department of Medicine I, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
- German Cancer Consortium (DKTK) Partner Site Freiburg, German Cancer Research Center (DKFZ), Heidelberg, Germany.
- Comprehensive Cancer Centre Freiburg (CCCF), University of Freiburg, Freiburg, Germany.
- Centre for Biological Signalling Studies (BIOSS) and Centre for Integrative Biological Signalling Studies (CIBSS), University of Freiburg, Freiburg, Germany.
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Goda C, Balli D, Black M, Milewski D, Le T, Ustiyan V, Ren X, Kalinichenko VV, Kalin TV. Loss of FOXM1 in macrophages promotes pulmonary fibrosis by activating p38 MAPK signaling pathway. PLoS Genet 2020; 16:e1008692. [PMID: 32271749 PMCID: PMC7173935 DOI: 10.1371/journal.pgen.1008692] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 04/21/2020] [Accepted: 02/22/2020] [Indexed: 02/06/2023] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a chronic disease with high mortality and is refractory to treatment. Pulmonary macrophages can both promote and repress fibrosis, however molecular mechanisms regulating macrophage functions during fibrosis remain poorly understood. FOXM1 is a transcription factor and is not expressed in quiescent lungs. Herein, we show that FOXM1 is highly expressed in pulmonary macrophages within fibrotic lungs of IPF patients and mouse fibrotic lungs. Macrophage-specific deletion of Foxm1 in mice (myFoxm1-/-) exacerbated pulmonary fibrosis. Inactivation of FOXM1 in vivo and in vitro increased p38 MAPK signaling in macrophages and decreased DUSP1, a negative regulator of p38 MAPK pathway. FOXM1 directly activated Dusp1 promoter. Overexpression of DUSP1 in FOXM1-deficient macrophages prevented activation of p38 MAPK pathway. Adoptive transfer of wild-type monocytes to myFoxm1-/- mice alleviated bleomycin-induced fibrosis. Altogether, contrary to known pro-fibrotic activities in lung epithelium and fibroblasts, FOXM1 has anti-fibrotic function in macrophages by regulating p38 MAPK.
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Affiliation(s)
- Chinmayee Goda
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children’s Hospital Research Foundation, Cincinnati, Ohio, United States of America
| | - David Balli
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children’s Hospital Research Foundation, Cincinnati, Ohio, United States of America
| | - Markaisa Black
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children’s Hospital Research Foundation, Cincinnati, Ohio, United States of America
| | - David Milewski
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children’s Hospital Research Foundation, Cincinnati, Ohio, United States of America
| | - Tien Le
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children’s Hospital Research Foundation, Cincinnati, Ohio, United States of America
| | - Vladimir Ustiyan
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children’s Hospital Research Foundation, Cincinnati, Ohio, United States of America
- Center for Lung Regenerative Medicine, the Perinatal Institute of Cincinnati Children’s Hospital Research Foundation, Cincinnati, Ohio, United States of America
| | - Xiaomeng Ren
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children’s Hospital Research Foundation, Cincinnati, Ohio, United States of America
- Center for Lung Regenerative Medicine, the Perinatal Institute of Cincinnati Children’s Hospital Research Foundation, Cincinnati, Ohio, United States of America
| | - Vladimir V. Kalinichenko
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children’s Hospital Research Foundation, Cincinnati, Ohio, United States of America
- Center for Lung Regenerative Medicine, the Perinatal Institute of Cincinnati Children’s Hospital Research Foundation, Cincinnati, Ohio, United States of America
| | - Tanya V. Kalin
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children’s Hospital Research Foundation, Cincinnati, Ohio, United States of America
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Uddin MS, Kabir MT, Niaz K, Jeandet P, Clément C, Mathew B, Rauf A, Rengasamy KR, Sobarzo-Sánchez E, Ashraf GM, Aleya L. Molecular Insight into the Therapeutic Promise of Flavonoids against Alzheimer's Disease. Molecules 2020; 25:molecules25061267. [PMID: 32168835 PMCID: PMC7143946 DOI: 10.3390/molecules25061267] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 03/05/2020] [Accepted: 03/10/2020] [Indexed: 12/12/2022] Open
Abstract
Alzheimer’s disease (AD) is one of the utmost chronic neurodegenerative disorders, which is characterized from a neuropathological point of view by the aggregates of amyloid beta (Aβ) peptides that are deposited as senile plaques and tau proteins which form neurofibrillary tangles (NFTs). Even though advancement has been observed in order to understand AD pathogenesis, currently available therapeutic methods can only deliver modest symptomatic relief. Interestingly, naturally occurring dietary flavonoids have gained substantial attention due to their antioxidative, anti-inflammatory, and anti-amyloidogenic properties as alternative candidates for AD therapy. Experimental proof provides support to the idea that some flavonoids might protect AD by interfering with the production and aggregation of Aβ peptides and/or decreasing the aggregation of tau. Flavonoids have the ability to promote clearance of Aβ peptides and inhibit tau phosphorylation by the mTOR/autophagy signaling pathway. Moreover, due to their cholinesterase inhibitory potential, flavonoids can represent promising symptomatic anti-Alzheimer agents. Several processes have been suggested for the aptitude of flavonoids to slow down the advancement or to avert the onset of Alzheimer’s pathogenesis. To enhance cognitive performance and to prevent the onset and progress of AD, the interaction of flavonoids with various signaling pathways is proposed to exert their therapeutic potential. Therefore, this review elaborates on the probable therapeutic approaches of flavonoids aimed at averting or slowing the progression of the AD pathogenesis.
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Affiliation(s)
- Md. Sahab Uddin
- Department of Pharmacy, Southeast University, Dhaka 1213, Bangladesh
- Pharmakon Neuroscience Research Network, Dhaka 1207, Bangladesh
- Correspondence: or (M.S.U.); (P.J.); Tel.: +880-1710220110 (M.S.U.); +33-3-26913-341 (P.J.)
| | | | - Kamal Niaz
- Department of Pharmacology and Toxicology, Faculty of Bio-Sciences, Cholistan University of Veterinary and Animal Sciences (CUVAS), Bahawalpur 63100, Pakistan
| | - Philippe Jeandet
- Research Unit, Induced Resistance and Plant Bioprotection, EA 4707, SFR Condorcet FR CNRS 3417, Faculty of Sciences, University of Reims Champagne-Ardenne, PO Box 1039, 51687 Reims CEDEX 2, France
- Correspondence: or (M.S.U.); (P.J.); Tel.: +880-1710220110 (M.S.U.); +33-3-26913-341 (P.J.)
| | - Christophe Clément
- Research Unit, Induced Resistance and Plant Bioprotection, EA 4707, SFR Condorcet FR CNRS 3417, Faculty of Sciences, University of Reims Champagne-Ardenne, PO Box 1039, 51687 Reims CEDEX 2, France
| | - Bijo Mathew
- Division of Drug Design and Medicinal Chemistry Research Lab, Department of Pharmaceutical Chemistry, Ahalia School of Pharmacy, Palakkad, Kerala 678557, India
| | - Abdur Rauf
- Department of Chemistry, University of Swabi, Anbar 23561, Khyber Pakhtunkhwa, Pakistan
| | | | - Eduardo Sobarzo-Sánchez
- Instituto de Investigación e Innovación en Salud, Facultad de Ciencias de la Salud, Universidad Central de Chile, Santiago 8330507, Chile
- Department of Organic Chemistry, Faculty of Pharmacy, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Ghulam Md Ashraf
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Lotfi Aleya
- Chrono-Environnement Laboratory, UMR CNRS 6249, Bourgogne Franche-Comté University, F-25030 Besançon, France
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Anselmo F, Tatomir A, Boodhoo D, Mekala AP, Nguyen V, Rus V, Rus H. JNK and phosphorylated Bcl-2 predict multiple sclerosis clinical activity and glatiramer acetate therapeutic response. Clin Immunol 2019; 210:108297. [PMID: 31698073 DOI: 10.1016/j.clim.2019.108297] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 10/15/2019] [Accepted: 11/03/2019] [Indexed: 01/04/2023]
Abstract
In this study, we investigated the role of JNK and phospho-Bcl-2 as possible biomarkers of multiple sclerosis (MS) relapse and of glatiramer acetate (GA) therapeutic response in relapsing-remitting MS patients. We enrolled a cohort of 15 GA-treated patients and measured the expression of JNK1, JNK2, phospho-JNK and phospho-Bcl-2 through Western blotting of lysates from peripheral blood mononuclear cells collected at 0, 3, 6, and 12 months after initiating GA therapy. We found significantly higher levels of JNK1 p54 and JNK2 p54 and significantly lower levels of p-Bcl-2 in relapse patients and in GA non-responders. By using receiver operating characteristic analysis, we found that the probability of accurately detecting relapse and response to GA was: 92% and 75.5%, respectively, for JNK1 p54 and 86% and 94.6%, respectively, for p-Bcl-2. Our data suggest that JNK1 and p-Bcl-2 could serve as potential biomarkers for MS relapse and the therapeutic response to GA.
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Affiliation(s)
- Freidrich Anselmo
- Department of Neurology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Alexandru Tatomir
- Department of Neurology, University of Maryland School of Medicine, Baltimore, MD, USA; Department of Neurosciences, "Iuliu Hatieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Dallas Boodhoo
- Department of Neurology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Armugam P Mekala
- Department of Neurology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Vinh Nguyen
- Department of Medicine, Division of Rheumatology and Immunology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Violeta Rus
- Department of Medicine, Division of Rheumatology and Immunology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Horea Rus
- Department of Neurology, University of Maryland School of Medicine, Baltimore, MD, USA; Research Service, Veterans Administration Maryland Health Care System, Baltimore, MD, USA.
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Prevention of calpain-dependent degradation of STK38 by MEKK2-mediated phosphorylation. Sci Rep 2019; 9:16010. [PMID: 31690749 PMCID: PMC6831656 DOI: 10.1038/s41598-019-52435-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 10/17/2019] [Indexed: 12/24/2022] Open
Abstract
Serine-threonine kinase 38 (STK38) is a member of the protein kinase A (PKA)/PKG/PKC-family implicated in the regulation of cell division and morphogenesis. However, the molecular mechanisms underlying STK38 stability remain largely unknown. Here, we show that treatment of cells with either heat or the calcium ionophore A23187 induced STK38 degradation. The calpain inhibitor calpeptin suppressed hyperthermia-induced degradation or the appearance of A23187-induced cleaved form of STK38. An in vitro cleavage assay was then used to demonstrate that calpain I directly cleaves STK38 at the proximal N-terminal region. Deletion of the N-terminal region of STK38 increased its stability against hyperthermia. We further demonstrated that the MAPKK kinase (MAP3K) MEKK2 prevented both heat- and calpain-induced cleavage of STK38. MEKK2 knockdown enhanced hyperthermia-induced degradation of STK38. We performed an in vitro MEKK2 assay and identified the key regulatory site in STK38 phosphorylated by MEKK2. Experiments with a phosphorylation-defective mutant demonstrated that phosphorylation of Ser 91 is important for STK38 stability, as the enzyme is susceptible to degradation by the calpain pathway unless this residue is phosphorylated. In summary, we demonstrated that STK38 is a calpain substrate and revealed a novel role of MEKK2 in the process of STK38 degradation by calpain.
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Mohammad J, Singh RR, Riggle C, Haugrud B, Abdalla MY, Reindl KM. JNK inhibition blocks piperlongumine-induced cell death and transcriptional activation of heme oxygenase-1 in pancreatic cancer cells. Apoptosis 2019; 24:730-744. [PMID: 31243599 PMCID: PMC6713602 DOI: 10.1007/s10495-019-01553-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Piperlongumine (PL) is an alkaloid that inhibits glutathione S-transferase pi 1 (GSTP1) activity, resulting in elevated reactive oxygen species (ROS) levels and cancer-selective cell death. We aimed to identify stress-associated molecular responses to PL treatment in pancreatic ductal adenocarcinoma (PDAC) cells. GSTP1 directly interacts with JNK, which is activated by oxidative stress and can lead to decreased cancer cell proliferation and cell death. Therefore, we hypothesized that JNK pathways are activated in response to PL treatment. Our results show PL causes dissociation of GSTP1 from JNK; robust JNK, c-Jun, and early ERK activation followed by suppression; increased expression of cleaved caspase-3 and cleaved PARP; and nuclear translocation of Nrf2 and c-Myc in PDAC cells. Gene expression analysis revealed PL caused a > 20-fold induction of heme oxygenase-1 (HO-1), which we hypothesized was a survival mechanism for PDAC cells under enhanced oxidative stress. HO-1 knockout resulted in enhanced PL-induced PDAC cell death under hypoxic conditions. Similarly, high concentrations of the HO-1 inhibitor, ZnPP (10 µM), sensitized PDAC cells to PL; however, lower concentrations ZnPP (10 nM) and high or low concentrations of SnPP both protected PDAC cells from PL-induced cell death. Interestingly, the JNK inhibitor significantly blocked PL-induced PDAC cell death, Nrf-2 nuclear translocation, and HMOX-1 mRNA expression. Collectively, the results demonstrate JNK signaling contributes to PL-induced PDAC cell death, and at the same time, activates Nrf-2 transcription of HMOX-1 as a compensatory survival mechanism. These results suggest that elevating oxidative stress (using PL) while at the same time impairing antioxidant capacity (inhibiting HO-1) may be an effective therapeutic approach for PDAC.
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Affiliation(s)
- Jiyan Mohammad
- Department of Biological Sciences, North Dakota State University, Fargo, ND, 58108, USA
| | - Rahul R Singh
- Department of Biological Sciences, North Dakota State University, Fargo, ND, 58108, USA
| | - Cody Riggle
- Department of Biological Sciences, North Dakota State University, Fargo, ND, 58108, USA
| | - Brandon Haugrud
- Department of Biological Sciences, North Dakota State University, Fargo, ND, 58108, USA
| | - Maher Y Abdalla
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Katie M Reindl
- Department of Biological Sciences, North Dakota State University, Fargo, ND, 58108, USA.
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Kushwaha P, Ahmad N, Dhar YV, Verma A, Haldar S, Mulani FA, Trivedi PK, Mishra PR, Thulasiram HV, Trivedi R. Estrogen receptor activation in response to Azadirachtin A stimulates osteoblast differentiation and bone formation in mice. J Cell Physiol 2019; 234:23719-23735. [DOI: 10.1002/jcp.28940] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Revised: 05/15/2019] [Accepted: 05/22/2019] [Indexed: 12/23/2022]
Affiliation(s)
| | - Naseer Ahmad
- Endocrinology CSIR‐Central Drug Research Institute Lucknow India
| | - Yogeshwar V. Dhar
- Molecular Biology and Biotechnology CSIR‐National Botanical Research Institute Lucknow India
| | - Ashwni Verma
- Pharmaceutics Division CSIR‐Central Drug Research Institute Lucknow India
| | - Saikat Haldar
- Organic Chemistry Division CSIR‐National Chemical Laboratory Pune India
| | - Fayaj A. Mulani
- Organic Chemistry Division CSIR‐National Chemical Laboratory Pune India
| | - Prabodh K. Trivedi
- Molecular Biology and Biotechnology CSIR‐National Botanical Research Institute Lucknow India
| | - Prabhat R. Mishra
- Pharmaceutics Division CSIR‐Central Drug Research Institute Lucknow India
| | | | - Ritu Trivedi
- Endocrinology CSIR‐Central Drug Research Institute Lucknow India
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Epidermal Growth Factor Stimulates Transforming Growth Factor-Beta Receptor Type II Expression In Corneal Epithelial Cells. Sci Rep 2019; 9:8079. [PMID: 31147562 PMCID: PMC6542834 DOI: 10.1038/s41598-019-42969-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Accepted: 04/11/2019] [Indexed: 11/08/2022] Open
Abstract
We previously demonstrated that inhibition of epidermal growth factor receptor (EGFR) slowed corneal epithelial migration. Here we examine the effect of EGF on transforming growth factor-beta receptor II (TGF-βRII) in a corneal wound-healing model and primary human corneal epithelial cells (pHCE). Corneal debridement wounds were made and allowed to heal ± Tyrphostin AG1478 (EGFR inhibitor), and assayed for EGFR activation and EGFR and TGF-βRII localization. Primary HCE were treated with EGF ± U0126 (MEK inhibitor) and assayed for TGF-βRII expression. EGFR activation was maximal 15 minutes after wounding and localized in the migrating epithelial cells. TGF-βRII localization was also observed in the migrating epithelium and was reduced when EGFR was blocked. When pHCE were treated with EGF for 6 hours, the cells produced enhanced levels of TGF-βRII, which was blocked by U0126. Downstream signaling pathways of MEK (p38MAPK and ERK1/2MAPK) were then examined, and TGF-β1 and EGF were found to have differential effects on the phosphorylation of p38 and ERK1/2, with TGF-β1 upregulating p-p38 but not pERK1/2 and EGF upregulating pERK1/2 but not p-p38. Taken together, these data indicate that EGF stimulates TGF-βRII through ERK1/2 and EGFR signaling, suggesting interplay between EGF- and TGF-β-signaling pathways during corneal wound repair.
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Wang M, Yu L, Wei X, Wei Y. Role of tumor gene mutations in treatment response to immune checkpoint blockades. PRECISION CLINICAL MEDICINE 2019; 2:100-109. [PMID: 35692451 PMCID: PMC8985804 DOI: 10.1093/pcmedi/pbz006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Revised: 02/09/2019] [Accepted: 03/07/2019] [Indexed: 02/05/2023] Open
Abstract
Early studies shed light on the immune suppression of immune checkpoint molecules in the cancer microenvironment, with later studies applying immune checkpoint blockade (ICB) in treatment of various malignancies. Despite the encouraging efficacy of ICBs in a substantial subset of cancer patients, the treatment response varies. Gene mutations of both tumor cells and immune cells in the tumor microenvironment have recently been identified as potential predictors of the ICB response. Recent developments in gene expression profiling of tumors have allowed identification of a panel of mutated genes that may affect tumor cell response to ICB treatment. In this review, we discuss the association of the ICB response with gene expression and mutation profiles in tumor cells, which it is hoped will help to optimize the clinical application of ICBs in cancer patients.
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Affiliation(s)
- Manni Wang
- Laboratory of Aging Research and Nanotoxicology, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, PR China
| | - Liu Yu
- Laboratory of Aging Research and Nanotoxicology, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, PR China
| | - Xiawei Wei
- Laboratory of Aging Research and Nanotoxicology, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, PR China
| | - Yuquan Wei
- Laboratory of Aging Research and Nanotoxicology, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, PR China
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40
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Misiura M, Kolomeisky AB. Kinetic network model to explain gain-of-function mutations in ERK2 enzyme. J Chem Phys 2019; 150:155101. [PMID: 31005085 DOI: 10.1063/1.5088647] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
ERK2 is a kinase protein that belongs to a Ras/Raf/MEK/ERK signaling pathway, which is activated in response to a range of extracellular signals. Malfunctioning of this cascade leads to a variety of serious diseases, including cancers. This is often caused by mutations in proteins belonging to the cascade, frequently leading to abnormally high activity of the cascade even in the absence of an external signal. One such "gain-of-function" mutation in the ERK2 protein, called a "sevenmaker" mutation (D319N), was discovered in 1994 in Drosophila. The mutation leads to disruption of interactions of other proteins with the D-site of ERK2 and results, contrary to expectations, in an increase of its activity in vivo. However, no molecular mechanism to explain this effect has been presented so far. The difficulty is that this mutation should equally negatively affect interactions of ERK2 with all substrates, activators, and deactivators. In this paper, we present a semiquantitative kinetic network model that gives a possible explanation of the increased activity of mutant ERK2 species. A simplified biochemical network for ERK2, viewed as a system of coupled Michaelis-Menten processes, is presented. Its dynamic properties are calculated explicitly using the method of first-passage processes. The effect of mutation is associated with changes in the strength of interaction energy between the enzyme and the substrates. It is found that the dependence of kinetic properties of the protein on the interaction energy is nonmonotonic, suggesting that some mutations might lead to more efficient catalytic properties, despite weakening intermolecular interactions. Our theoretical predictions agree with experimental observations for the sevenmaker mutation in ERK2. It is also argued that the effect of mutations might depend on the concentrations of substrates.
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Affiliation(s)
- Mikita Misiura
- Department of Chemistry, Rice University, Houston, Texas 77005-1892, USA
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Zhang S, Wu H, Li S, Wang M, Fang L, Liu R. Melatonin Enhances Autophagy and Decreases Apoptosis Induced by nanosilica in RAW264.7 cells. IUBMB Life 2019; 71:1021-1029. [PMID: 31018046 DOI: 10.1002/iub.2055] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 04/09/2019] [Accepted: 04/10/2019] [Indexed: 12/13/2022]
Affiliation(s)
- Shi‐Hai Zhang
- Department of PulmonaryAnhui Geriatric Institute, the First Affiliated Hospital of Anhui Medical University Hefei China
- Anhui Provincial Children's HospitalChildren's Hospital of Anhui Medical University Hefei China
| | - Hui‐Mei Wu
- Department of PulmonaryAnhui Geriatric Institute, the First Affiliated Hospital of Anhui Medical University Hefei China
| | - Shuai Li
- Department of PulmonaryAnhui Geriatric Institute, the First Affiliated Hospital of Anhui Medical University Hefei China
| | - Mu‐Zi Wang
- Department of PulmonaryAnhui Geriatric Institute, the First Affiliated Hospital of Anhui Medical University Hefei China
| | - Lei Fang
- Department of PulmonaryAnhui Geriatric Institute, the First Affiliated Hospital of Anhui Medical University Hefei China
| | - Rong‐Yu Liu
- Department of PulmonaryAnhui Geriatric Institute, the First Affiliated Hospital of Anhui Medical University Hefei China
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Qu F, Tang J, Peng X, Zhang H, Shi L, Huang Z, Xu W, Chen H, Shen Y, Yan J, Li J, Lu S, Liu Z. Two novel MKKs (MKK4 and MKK7) from Ctenopharyngodon idella are involved in the intestinal immune response to bacterial muramyl dipeptide challenge. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2019; 93:103-114. [PMID: 30633955 DOI: 10.1016/j.dci.2019.01.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 01/03/2019] [Accepted: 01/03/2019] [Indexed: 06/09/2023]
Abstract
Mitogen-activated protein kinase kinases (MKKs) are a class of evolutionarily conserved signalling intermediates of the MAPK signalling pathway that can be activated by a diverse range of pathogenic stimuli and are crucial for the regulation of host immune defence. In this study, two fish MKK genes (CiMKK4 and CiMKK7) were first identified and characterized from grass carp (Ctenopharyngodon idella). Similar to other reported MKKs, the present CiMKK4 and CiMKK7 contained a conserved serine/threonine protein kinase (S_TKc) domain and a canonical dual phosphorylation motif. Quantitative real-time PCR results showed that CiMKK4 and CiMKK7 were broadly transcribed in all selected tissues and developmental stages of grass carp. The mRNA expression levels of CiMKK4 and CiMKK7 in the intestine were significantly induced by bacterial muramyl dipeptide (MDP) challenge in a time-dependent manner (P < 0.01). Additionally, the stimulatory effects of bacterial MDP on CiMKK4 and CiMKK7 expression in the intestine were inhibited by the bioactive dipeptide β-alanyl-l-histidine (carnosine) and alanyl-glutamine (Ala-Gln) (P < 0.05). Moreover, overexpression analysis revealed that CiMKK4 and CiMKK7 were localized throughout the entire cell and could significantly enhance AP-1 reporter gene activation in HEK293T cells. Taken together, these results provide the first experimental demonstration that CiMKK4 and CiMKK7 are involved in the intestinal immune response to MDP challenge in C. idella, which may provide new insight into the bacterial-induced intestinal inflammation of bony fishes.
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Affiliation(s)
- Fufa Qu
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, 410022, China; State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, 410081, China
| | - Jianzhou Tang
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, 410022, China
| | - Xiangyu Peng
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, 410022, China
| | - Hui Zhang
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, 410022, China
| | - Liping Shi
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, 410022, China
| | - Zhenzhen Huang
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, 410022, China
| | - Wenqian Xu
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, 410022, China
| | - Huiqing Chen
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, 410022, China
| | - Ying Shen
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, 410022, China
| | - Jinpeng Yan
- Department of Cell Biology, School of Life Sciences, Central South University, Changsha, 410017, China
| | - Jianzhong Li
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, 410081, China
| | - Shuangqing Lu
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, 410022, China
| | - Zhen Liu
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, 410022, China; State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, 410081, China.
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Qu F, Tang J, Liao J, Chen B, Song P, Luo W, Xiong D, Liu T, Gao Q, Lu S, Liu Z. Mitogen-activated protein kinase kinase 6 is involved in the immune response to bacterial di-/tripeptide challenge in grass carp Ctenopharyngodon idella. FISH & SHELLFISH IMMUNOLOGY 2019; 84:795-801. [PMID: 30393177 DOI: 10.1016/j.fsi.2018.10.073] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 10/19/2018] [Accepted: 10/26/2018] [Indexed: 06/08/2023]
Abstract
Mitogen-activated protein kinase kinase 6 (MKK6) is an essential component of the p38MAPK signaling pathway, which is involved in the modulation of inflammation, cell apoptosis and survival responses in mammals. However, the function of MKK6s in teleosts is still unclear. In this study, a fish MKK6 homolog (CiMKK6) was first identified from the grass carp (Ctenopharyngodon idella), a freshwater fish. CiMKK6 cDNA encodes a putative protein of 357 amino acids that contains conserved structural characteristics of the MKK6 family, including the S_TKc domain, SVAKT motif and DVD site. The deduced CiMKK6 protein exhibits high sequence homology with other reported fish MKK6s and shares the closest relationship with MKK6 from Danio rerio. Quantitative real-time PCR (qRT-PCR) analysis revealed that CiMKK6 mRNA was widely expressed in all tested tissues and stages of embryonic development. Additionally, the transcript levels of CiMKK6 in the intestine were significantly upregulated in response to bacterial muramyl dipeptide (MDP) and L-Ala-γ-D-Glu-meso-diaminopimelic acid (Tri-DAP) stimulation. Moreover, subcellular localization analysis indicated that CiMKK6 was distributed in both the cytoplasm and the nucleus of HEK293T cells. Finally, overexpression of CiMKK6 significantly enhanced the transcriptional activity of the AP-1 reporter gene in HEK293T cells. Overall, these findings may help better clarify the immune function of teleost MKK6s and provide new insight into the immune defense mechanisms of grass carp.
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Affiliation(s)
- Fufa Qu
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, 410022, China; State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, 410081, China
| | - Jianzhou Tang
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, 410022, China
| | - Jinting Liao
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, 410022, China
| | - Bei Chen
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, 410022, China
| | - Peng Song
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, 410022, China
| | - Wenjie Luo
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, 410022, China; State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, 410081, China
| | - Ding Xiong
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, 410022, China
| | - Tianting Liu
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, 410022, China
| | - Qianting Gao
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, 410022, China
| | - Shuangqing Lu
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, 410022, China
| | - Zhen Liu
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, 410022, China; State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, 410081, China.
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Goldshmit Y, Tang JKKY, Siegel AL, Nguyen PD, Kaslin J, Currie PD, Jusuf PR. Different Fgfs have distinct roles in regulating neurogenesis after spinal cord injury in zebrafish. Neural Dev 2018; 13:24. [PMID: 30447699 PMCID: PMC6240426 DOI: 10.1186/s13064-018-0122-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 11/08/2018] [Indexed: 11/10/2022] Open
Abstract
Background Despite conserved developmental processes and organization of the vertebrate central nervous system, only some vertebrates including zebrafish can efficiently regenerate neural damage including after spinal cord injury. The mammalian spinal cord shows very limited regeneration and neurogenesis, resulting in permanent life-long functional impairment. Therefore, there is an urgent need to identify the cellular and molecular mechanisms that can drive efficient vertebrate neurogenesis following injury. A key pathway implicated in zebrafish neurogenesis is fibroblast growth factor signaling. Methods In the present study we investigated the roles of distinct fibroblast growth factor members and their receptors in facilitating different aspects of neural development and regeneration at different timepoints following spinal cord injury. After spinal cord injury in adults and during larval development, loss and/or gain of Fgf signaling was combined with immunohistochemistry, in situ hybridization and transgenes marking motor neuron populations in in vivo zebrafish and in vitro mammalian PC12 cell culture models. Results Fgf3 drives neurogenesis of Islet1 expressing motor neuron subtypes and mediate axonogenesis in cMet expressing motor neuron subtypes. We also demonstrate that the role of Fgf members are not necessarily simple recapitulating development. During development Fgf2, Fgf3 and Fgf8 mediate neurogenesis of Islet1 expressing neurons and neuronal sprouting of both, Islet1 and cMet expressing motor neurons. Strikingly in mammalian PC12 cells, all three Fgfs increased cell proliferation, however, only Fgf2 and to some extent Fgf8, but not Fgf3 facilitated neurite outgrowth. Conclusions This study demonstrates differential Fgf member roles during neural development and adult regeneration, including in driving neural proliferation and neurite outgrowth of distinct spinal cord neuron populations, suggesting that factors including Fgf type, age of the organism, timing of expression, requirements for different neuronal populations could be tailored to best drive all of the required regenerative processes.
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Affiliation(s)
- Yona Goldshmit
- Australian Regenerative Medicine Institute, Monash University, Clayton, VIC, 3800, Australia.,Steyer School of Health Professions, Sackler School of Medicine, Tel-Aviv University, P.O. Box 39040, 6997801, Tel Aviv, Israel
| | - Jean Kitty K Y Tang
- Australian Regenerative Medicine Institute, Monash University, Clayton, VIC, 3800, Australia
| | - Ashley L Siegel
- Australian Regenerative Medicine Institute, Monash University, Clayton, VIC, 3800, Australia
| | - Phong D Nguyen
- Australian Regenerative Medicine Institute, Monash University, Clayton, VIC, 3800, Australia
| | - Jan Kaslin
- Australian Regenerative Medicine Institute, Monash University, Clayton, VIC, 3800, Australia
| | - Peter D Currie
- Australian Regenerative Medicine Institute, Monash University, Clayton, VIC, 3800, Australia
| | - Patricia R Jusuf
- Australian Regenerative Medicine Institute, Monash University, Clayton, VIC, 3800, Australia. .,School of Biosciences, University of Melbourne, Parkville, VIC, 3010, Australia.
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Abstract
The MAPK pathway is a prominent intracellular signaling pathway regulating various intracellular functions. Components of this pathway are mutated in a related collection of congenital syndromes collectively referred to as neuro-cardio-facio-cutaneous syndromes (NCFC) or Rasopathies. Recently, it has been appreciated that these disorders are associated with autism spectrum disorders (ASD). In addition, idiopathic ASD has also implicated the MAPK signaling cascade as a common pathway that is affected by many of the genetic variants that have been found to be linked to ASDs. This chapter describes the components of the MAPK pathway and how it is regulated. Furthermore, this chapter will highlight the various functions of the MAPK pathway during both embryonic development of the central nervous system (CNS) and its roles in neuronal physiology and ultimately, behavior. Finally, we will summarize the perturbations to MAPK signaling in various models of autism spectrum disorders and Rasopathies to highlight how dysregulation of this pivotal pathway may contribute to the pathogenesis of autism.
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46
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Li Y, He J, Qiu C, Shang Q, Qian G, Fan X, Ge S, Jia R. The oncolytic virus H101 combined with
GNAQ
siRNA‐mediated knockdown reduces uveal melanoma cell viability. J Cell Biochem 2018; 120:5766-5776. [PMID: 30320917 DOI: 10.1002/jcb.27863] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Accepted: 09/19/2018] [Indexed: 01/02/2023]
Affiliation(s)
- Yongyun Li
- Department of Ophthalmology Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology Shanghai China
| | - Jie He
- Department of Ophthalmology Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology Shanghai China
| | - Chun Qiu
- Department of Ophthalmology Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology Shanghai China
| | - Qingfeng Shang
- Department of Ophthalmology Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology Shanghai China
| | - Guanxiang Qian
- Department of Ophthalmology Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology Shanghai China
| | - Xianqun Fan
- Department of Ophthalmology Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology Shanghai China
| | - Shengfang Ge
- Department of Ophthalmology Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology Shanghai China
| | - Renbing Jia
- Department of Ophthalmology Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology Shanghai China
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Muñoz IM, Morgan ME, Peltier J, Weiland F, Gregorczyk M, Brown FC, Macartney T, Toth R, Trost M, Rouse J. Phosphoproteomic screening identifies physiological substrates of the CDKL5 kinase. EMBO J 2018; 37:embj.201899559. [PMID: 30266825 PMCID: PMC6293279 DOI: 10.15252/embj.201899559] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 08/14/2018] [Accepted: 09/10/2018] [Indexed: 12/21/2022] Open
Abstract
Mutations in the gene encoding the protein kinase CDKL5 cause a debilitating neurodevelopmental disease termed CDKL5 disorder. The impact of these mutations on CDKL5 function is poorly understood because the substrates and cellular processes controlled by CDKL5 are unclear. Here, we describe a quantitative phosphoproteomic screening which identified MAP1S, CEP131 and DLG5—regulators of microtubule and centrosome function—as cellular substrates of CDKL5. Antibodies against MAP1S phospho‐Ser900 and CEP131 phospho‐Ser35 confirmed CDKL5‐dependent phosphorylation of these targets in human cells. The phospho‐acceptor serine residues in MAP1S, CEP131 and DLG5 lie in the motif RPXSA, although CDKL5 can tolerate residues other than Ala immediately C‐terminal to the phospho‐acceptor serine. We provide insight into the control of CDKL5 activity and show that pathogenic mutations in CDKL5 cause a major reduction in CDKL5 activity in vitro and in cells. These data reveal the first cellular substrates of CDKL5, which may represent important biomarkers in the diagnosis and treatment of CDKL5 disorder, and illuminate the functions of this poorly characterized kinase.
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Affiliation(s)
- Ivan M Muñoz
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee, UK
| | - Michael E Morgan
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee, UK
| | - Julien Peltier
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee, UK.,Faculty of Medical Sciences, Institute for Cell and Molecular Biosciences, Newcastle upon Tyne, UK
| | - Florian Weiland
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee, UK
| | - Mateusz Gregorczyk
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee, UK
| | - Fiona Cm Brown
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee, UK
| | - Thomas Macartney
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee, UK
| | - Rachel Toth
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee, UK
| | - Matthias Trost
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee, UK .,Faculty of Medical Sciences, Institute for Cell and Molecular Biosciences, Newcastle upon Tyne, UK
| | - John Rouse
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee, UK
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Zhang H, Ou Z, Xu M, Huang X, Liu W, Shi Y, He M. Molecular cloning and characterization of a putative mitogen-activated protein kinase (Erk1/2) gene: Involvement in mantle immunity of Pinctada fucata. FISH & SHELLFISH IMMUNOLOGY 2018; 80:63-70. [PMID: 29859309 DOI: 10.1016/j.fsi.2018.05.047] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 05/21/2018] [Accepted: 05/29/2018] [Indexed: 06/08/2023]
Abstract
Extracellular signal-regulated kinases (ERKs) are conserved and related with protein-serine/threonine kinases that participate in the regulation of multiple biological processes, such as cell survival, cell differentiation, proliferation, metabolism, and inflammation. However, little is known about the roles of this kinase in the pearl oyster. In this study, we cloned and identified an ERK homolog from Pinctada fucata (PfErk). Furthermore, we have unraveled its expressional kinetics after lipopolysaccharide (LPS) and polyinosinic-epolycytidylic acid (poly I:C) immune challenge. Pferk harbored a 5' untranslated region (UTR) of 12 bp, a coding sequence of 1074 bp, and a 3' UTR of 882 bp. The putative peptide comprised a predicted molecular mass of 41.19 kDa, with a theoretical pI of 6.15. Sequence analysis showed that it possesses one STK catalytic domain and a conserved His-Arg-Asp (HRD) domain. In addition, a canonical Thr-Glu-Tyr (TEY) dual phosphorylation motif and an ATRW substrate binding site were also identified in the coding protein. Homology assessment of PfErk showed high similarity to Homo sapiens ERK. Phylogenetic analysis supported a close evolutionary relationship with molluscan orthologs. The expression patterns of Pferk were observed in seven different tissues of pearl oyster, with highest expression in the mantle and lowest expression in the digestive gland. Pferk mRNA expression levels were detected at developmental stages, with the highest expression in D-shaped larvae, followed by the 32-cell stage. The mRNA expression of Pferk was upregulated significantly in P. fucata mantle primary cells and mantle tissue after LPS and poly (I:C) treatment, and PfErk phosphorylation levels were activated by LPS and poly (I:C) challenges. Overall, our results suggested that PfErk may play important roles in pearl oyster innate immunity, and provided a new understanding of mantle immunity in the pearl oyster.
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Affiliation(s)
- Hua Zhang
- 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, Guangdong, Guangzhou, 510301, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zekui Ou
- 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, Guangdong, Guangzhou, 510301, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Meng Xu
- 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, Guangdong, Guangzhou, 510301, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiande Huang
- 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, Guangdong, Guangzhou, 510301, China
| | - Wenguang Liu
- 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, Guangdong, Guangzhou, 510301, China
| | - Yu Shi
- 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, Guangdong, Guangzhou, 510301, China
| | - Maoxian He
- 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, Guangdong, Guangzhou, 510301, China.
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Liu X, Wang B, Ding H, Shi H, Liu J, Sun H. Low-intensity pulsed ultrasound in combination with SonoVue induces cytotoxicity of human renal glomerular endothelial cells via repression of the ERK1/2 signaling pathway. Ren Fail 2018; 40:458-465. [PMID: 30122107 PMCID: PMC6104615 DOI: 10.1080/0886022x.2018.1487868] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/30/2022] Open
Abstract
OBJECTIVES Low-intensity pulsed ultrasound (LIPUS) and SonoVue have been used widely for diagnosis and therapeutic treatment. The effects of LIPUS and SonoVue on the microvascular system and underlying molecular mechanisms have not been established. METHODS Cultured human renal glomerular endothelial cells (HRGECs) were treated with 5-min ultrasonic irradiation, 20% SonoVue or the combination of both treatments. Cell proliferation, viablity, and apoptosis were measured by MTT assay, Trypan blue exclusion assay and flow cytometry, respectively. Activation of extracellular regulated protein kinases (ERK) were examined by Western blot. RESULTS We found that LIPUS and SonoVue alone do not induce cytotoxicity of HRGECs; however, the combination of the two treatments reduces cell proliferation and increases cell death. In addition, the combination of LIPUS and SonoVue suppressed the activation of ERK 1/2 in HRGRCs. With pretreatment of the inhibitor of ERK1/2 signaling, PD98059, LIPUS, and SonoVue does not induce additional cell death and inhibition of proliferation. CONCLUSIONS LIPUS combined with SonoVue induces cytotoxicity of HRGECs via repression of the ERK1/2 signaling pathway.
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Affiliation(s)
- Xiu Liu
- a Shandong Provincial Qianfoshan Hospital, Shandong University , Jinan , China.,b Department of Cardiography , Yantai Affiliated Hospital of Binzhou Medical University , Yantai , China
| | - Bei Wang
- c Department of Ultrasonography , Shandong Provincial Qianfoshan Hospital, Shandong University , Jinan , China
| | - Hongyu Ding
- c Department of Ultrasonography , Shandong Provincial Qianfoshan Hospital, Shandong University , Jinan , China
| | - Hao Shi
- d Department of Radiology, Shandong Provincial Qianfoshan Hospital , Shandong University , Jinan , China
| | - Ju Liu
- e Medical Research Center, Shandong Provincial Qianfoshan Hospital, Shandong University , Jinan , China
| | - Hongjun Sun
- e Medical Research Center, Shandong Provincial Qianfoshan Hospital, Shandong University , Jinan , China
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50
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Lyu J, Imachi H, Fukunaga K, Sato S, Ibata T, Kobayashi T, Dong T, Yoshimoto T, Yonezaki K, Nagata H, Iwama H, Murao K. Angiotensin II induces cholesterol accumulation and impairs insulin secretion by regulating ABCA1 in beta cells. J Lipid Res 2018; 59:1906-1915. [PMID: 30108153 DOI: 10.1194/jlr.m085886] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 08/02/2018] [Indexed: 01/23/2023] Open
Abstract
In pancreatic β cells, ABCA1, a 254 kDa membrane protein, affects cholesterol homeostasis and insulin secretion. Angiotensin II, as the main effector of the renin-angiotensin system, decreases glucose-stimulated insulin secretion (GSIS). We examined the effect of angiotensin II on ABCA1 expression in primary pancreatic islets and INS-1 cells. Angiotensin II decreased ABCA1 protein and mRNA; angiotensin II type 1 receptor (AT1R) blockade rescued this ABCA1 repression. In parallel, angiotensin II suppressed the promoter activity of ABCA1, an effect that was abrogated by PD98095, a specific inhibitor of MAPK kinase (MEK). LXR enhanced ABCA1 promoter activity, and angiotensin II decreased the nuclear abundance of LXR protein. On a chromatin immunoprecipitation assay, LXR mediated the transcription of ABCA1 by directly binding to its promoter. Mutation of the LXR binding site on the ABCA1 promoter cancelled the effect of angiotensin II. Furthermore, angiotensin II induced cholesterol accumulation and impaired GSIS; inhibition of AT1R or MEK pathway reversed these effects. In summary, our study showed that angiotensin II suppressed ABCA1 expression in pancreatic islets and INS-1 cells, indicating that angiotensin II may influence GSIS by regulating ABCA1 expression. Additional research may address therapeutic needs in diseases such as diabetes mellitus.
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Affiliation(s)
- Jingya Lyu
- Department of Endocrinology and Metabolism, Faculty of Medicine, Kagawa University, 1750-1, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan
| | - Hitomi Imachi
- Department of Endocrinology and Metabolism, Faculty of Medicine, Kagawa University, 1750-1, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan
| | - Kensaku Fukunaga
- Department of Endocrinology and Metabolism, Faculty of Medicine, Kagawa University, 1750-1, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan
| | - Seisuke Sato
- Department of Endocrinology and Metabolism, Faculty of Medicine, Kagawa University, 1750-1, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan
| | - Tomohiro Ibata
- Department of Endocrinology and Metabolism, Faculty of Medicine, Kagawa University, 1750-1, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan
| | - Toshihiro Kobayashi
- Department of Endocrinology and Metabolism, Faculty of Medicine, Kagawa University, 1750-1, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan
| | - Tao Dong
- Department of Endocrinology and Metabolism, Faculty of Medicine, Kagawa University, 1750-1, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan
| | - Takuo Yoshimoto
- Department of Endocrinology and Metabolism, Faculty of Medicine, Kagawa University, 1750-1, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan
| | - Kazuko Yonezaki
- Department of Endocrinology and Metabolism, Faculty of Medicine, Kagawa University, 1750-1, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan
| | - Hiromi Nagata
- Department of Endocrinology and Metabolism, Faculty of Medicine, Kagawa University, 1750-1, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan
| | - Hisakazu Iwama
- Life Science Research Center, Kagawa University, 1750-1, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan
| | - Koji Murao
- Department of Endocrinology and Metabolism, Faculty of Medicine, Kagawa University, 1750-1, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan
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