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Mohanad M, Mohamed SK, Aboulhoda BE, Ahmed MAE. Neuroprotective effects of vitamin D in an Alzheimer's disease rat model: Improvement of mitochondrial dysfunction via calcium/calmodulin-dependent protein kinase kinase 2 activation of Sirtuin1 phosphorylation. Biofactors 2024; 50:371-391. [PMID: 37801071 DOI: 10.1002/biof.2013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 09/17/2023] [Indexed: 10/07/2023]
Abstract
Mitochondrial dysfunction is an early event in Alzheimer's disease (AD) pathogenesis. To assess the impact of vitamin D3 (Vit.D) on neurogenesis, we investigated its role in mitigating cognitive impairment and mitochondrial dysfunction through calcium/calmodulin-dependent protein kinase kinase 2 (CAMKK2)-mediated phosphorylation of Sirtuin1 (SIRT1) in an aluminum-chloride-D-galactose (AlCl3-D-gal)-induced AD rat model. Rats were distributed into four groups: control, AlCl3 + D-gal (10 + 60 mg/kg, ip), Vit.D (500 IU/kg, po), and AlCl3 + D-gal+Vit.D. Novel object recognition (NOR), Morris Water Maze, and passive avoidance (PA) tests were used to measure memory abilities. The hippocampal tissue was used to assess vitamin D3 receptor (VDR) and peroxisome-proliferator-activated-receptor-γ-coactivator-1α (PGC-1α) expression by quantitative real-time polymerase chain reaction (qRT-PCR), CAMKK2, p-SIRT1, phosphorylated-AMP-activated protein kinase (p-AMPK), dynamin-related-protein-1 (Drp1), and mitofusin-1 (Mnf1) proteins by western blot and Ca2+ levels, endothelial nitic oxide synthase (eNOS), superoxide dismutase (SOD), amyloid beta (Aβ), and phospho tau (p-Tau) via enzyme-linked immunosorbent assay(ELISA) in addition to histological and ultrastructural examination of rat's brain tissue. Vit.D-attenuated hippocampal injury reversed the cognitive decline and Aβ aggregation, and elevated p-Tau levels in the AlCl3 + D-gal-induced AD rat model. In AlCl3 + D-gal-exposed rats, Vit.D induced VDR expression, normalized Ca2+ levels, elevated CAMKK2, p-AMPK, p-SIRT1, and PGC-1α expression. Vit.D reduced Drp1, induced Mnf1, increased mitochondrial membrane potential, preserved mitochondrial structure, restored normal mitochondrial function, and retained normal eNOS level and SOD activity in AlCl3 + D-gal rats. In conclusion, our findings proved that Vit.D may ameliorate cognitive deficits in AlCl3 + D-gal-induced AD by restoring normal mitochondrial function and reducing inflammatory and oxidative stress via CAMKK2-AMPK/SIRT1 pathway upregulation.
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Affiliation(s)
- Marwa Mohanad
- Department of Biochemistry, College of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology (MUST), Giza, Egypt
| | - Shimaa K Mohamed
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Helwan University, Cairo, Egypt
| | - Basma E Aboulhoda
- Department of Anatomy and Embryology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Maha A E Ahmed
- Department of Pharmacology and Toxicology, College of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology (MUST), Giza, Egypt
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2
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Chen Y, Markov N, Gigon L, Hosseini A, Yousefi S, Stojkov D, Simon HU. The BK Channel Limits the Pro-Inflammatory Activity of Macrophages. Cells 2024; 13:322. [PMID: 38391935 PMCID: PMC10886595 DOI: 10.3390/cells13040322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 01/31/2024] [Accepted: 02/07/2024] [Indexed: 02/24/2024] Open
Abstract
Macrophages play a crucial role in the innate immune response, serving as key effector cells in the defense against pathogens. Although the role of the large-conductance voltage and calcium-activated potassium channel, also known as the KCa1.1 or BK channel, in regulating neurotransmitter release and smooth muscle contraction is well known, its potential involvement in immune regulation remains unclear. We employed BK-knockout macrophages and noted that the absence of a BK channel promotes the polarization of macrophages towards a pro-inflammatory phenotype known as M1 macrophages. Specifically, the absence of the BK channel resulted in a significant increase in the secretion of the pro-inflammatory cytokine IL-6 and enhanced the activity of extracellular signal-regulated kinases 1 and 2 (Erk1/2 kinases), Ca2+/calmodulin-dependent protein kinase II (CaMKII), and the transcription factor ATF-1 within M1 macrophages. Additionally, the lack of the BK channel promoted the activation of the AIM2 inflammasome without affecting the activation of the NLRC4 and NLRP3 inflammasomes. To further investigate the role of the BK channel in regulating AIM2 inflammasome activation, we utilized BK channel inhibitors, such as paxilline and iberiotoxin, along with the BK channel activator NS-11021. Pharmacological inactivation of the BK channel increased, and its stimulation inhibited IL-1β production following AIM2 inflammasome activation in wild-type macrophages. Moreover, wild-type macrophages displayed increased calcium influx when activated with the AIM2 inflammasome, whereas BK-knockout macrophages did not due to the impaired extracellular calcium influx upon activation. Furthermore, under conditions of a calcium-free medium, IL-1β production following AIM2 inflammasome activation was increased in both wild-type and BK-knockout macrophages. This suggests that the BK channel is required for the influx of extracellular calcium in macrophages, thus limiting AIM2 inflammasome activation. In summary, our study reveals a regulatory role of the BK channel in macrophages under inflammatory conditions.
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Affiliation(s)
- Yihe Chen
- Institute of Pharmacology, University of Bern, 3010 Bern, Switzerland
| | - Nikita Markov
- Institute of Pharmacology, University of Bern, 3010 Bern, Switzerland
| | - Lea Gigon
- Institute of Pharmacology, University of Bern, 3010 Bern, Switzerland
| | - Aref Hosseini
- Institute of Pharmacology, University of Bern, 3010 Bern, Switzerland
| | - Shida Yousefi
- Institute of Pharmacology, University of Bern, 3010 Bern, Switzerland
| | - Darko Stojkov
- Institute of Pharmacology, University of Bern, 3010 Bern, Switzerland
| | - Hans-Uwe Simon
- Institute of Pharmacology, University of Bern, 3010 Bern, Switzerland
- Institute of Biochemistry, Brandenburg Medical School, 16816 Neuruppin, Germany
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3
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Mordente K, Ryder L, Bekker-Jensen S. Mechanisms underlying sensing of cellular stress signals by mammalian MAP3 kinases. Mol Cell 2024; 84:142-155. [PMID: 38118452 DOI: 10.1016/j.molcel.2023.11.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 11/17/2023] [Accepted: 11/21/2023] [Indexed: 12/22/2023]
Abstract
Cellular homeostasis is continuously challenged by environmental cues and cellular stress conditions. In their defense, cells need to mount appropriate stress responses that, dependent on the cellular context, signaling intensity, and duration, may have diverse outcomes. The stress- and mitogen-activated protein kinase (SAPK/MAPK) system consists of well-characterized signaling cascades that sense and transduce an array of different stress stimuli into biological responses. However, the physical and chemical nature of stress signals and how these are sensed by individual upstream MAP kinase kinase kinases (MAP3Ks) remain largely ambiguous. Here, we review the existing knowledge of how individual members of the large and diverse group of MAP3Ks sense specific stress signals through largely non-redundant mechanisms. We emphasize the large knowledge gaps in assigning function and stress signals for individual MAP3K family members and touch on the potential of targeting this class of proteins for clinical benefit.
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Affiliation(s)
- Kelly Mordente
- Center for Healthy Aging, University of Copenhagen, Blegdamsvej 3, DK-2200 Copenhagen, Denmark; Center for Gene Expression, Department of Cellular and Molecular Medicine, University of Copenhagen, Blegdamsvej 3, DK-2200 Copenhagen, Denmark
| | - Laura Ryder
- Center for Healthy Aging, University of Copenhagen, Blegdamsvej 3, DK-2200 Copenhagen, Denmark; Center for Gene Expression, Department of Cellular and Molecular Medicine, University of Copenhagen, Blegdamsvej 3, DK-2200 Copenhagen, Denmark
| | - Simon Bekker-Jensen
- Center for Healthy Aging, University of Copenhagen, Blegdamsvej 3, DK-2200 Copenhagen, Denmark; Center for Gene Expression, Department of Cellular and Molecular Medicine, University of Copenhagen, Blegdamsvej 3, DK-2200 Copenhagen, Denmark.
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4
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Rahman SMT, Zhou W, Deiters A, Haugh JM. Dissection of MKK6 and p38 Signaling Using Light-Activated Protein Kinases. Chembiochem 2024; 25:e202300551. [PMID: 37856284 DOI: 10.1002/cbic.202300551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 10/18/2023] [Accepted: 10/18/2023] [Indexed: 10/21/2023]
Abstract
Stress-activated signaling pathways orchestrate cellular behaviors and fates. Studying the precise role(s) of stress-activated protein kinases is challenging, because stress conditions induce adaptation and impose selection pressure. To meet this challenge, we have applied an optogenetic system with a single plasmid to express light-activated p38α or its upstream activator, MKK6, in conjunction with live-cell fluorescence microscopy. In starved cells, decaging of constitutively active p38α or MKK6 by brief exposure to UV light elicits rapid p38-mediated signaling, release of cytochrome c from mitochondria, and apoptosis with different kinetics. In parallel, light activation of p38α also suppresses autophagosome formation, similarly to stimulation with growth factors that activate PI3K/Akt/mTORC1 signaling. Active MKK6 negatively regulates serum-induced ERK activity, which is p38-independent as previously reported. Here, we reproduce that result with the one plasmid system and show that although decaging active p38α does not reduce basal ERK activity in our cells, it can block growth factor-stimulated ERK signaling in serum-starved cells. These results clarify the roles of MKK6 and p38α in dynamic signaling programs, which act in concert to actuate apoptotic death while suppressing cell survival mechanisms.
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Affiliation(s)
- Shah Md Toufiqur Rahman
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Campus Box 7905, 911 Partners Way, Raleigh, NC, 27695, USA
| | - Wenyuan Zhou
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, 15260, USA
| | - Alexander Deiters
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, 15260, USA
| | - Jason M Haugh
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Campus Box 7905, 911 Partners Way, Raleigh, NC, 27695, USA
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Khachigian LM. The MEK-ERK-Egr-1 axis and its regulation in cardiovascular disease. Vascul Pharmacol 2023; 153:107232. [PMID: 37734428 DOI: 10.1016/j.vph.2023.107232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 09/14/2023] [Accepted: 09/18/2023] [Indexed: 09/23/2023]
Abstract
Cardiovascular disease (CVD) is the primary cause of morbidity and mortality in the Western world. Multiple molecular and cellular processes underpinning the pathogenesis of CVD are regulated by the zinc finger transcription factor and product of an immediate-early gene, early growth response-1 (Egr-1). Egr-1 regulates multiple pro-inflammatory processes that underpin the manifestation of CVD. The activity of Egr-1 itself is influenced by a range of post-translational modifications including sumoylation, ubiquitination and acetylation. Egr-1 also undergoes phosphorylation by protein kinases, such as extracellular-signal regulated kinase (ERK) which is itself phosphorylated by MEK. This article reviews recent progress on the MEK-ERK-Egr-1 cascade, notably regulation in conjunction with factors and agents such as TET2, TRIB2, MIAT, SphK1, cAMP, teneligliptin, cholinergic drugs, red wine and flavonoids, wogonin, febuxostat, docosahexaenoic acid and AT1R blockade. Such insights should provide new opportunity for therapeutic intervention in CVD.
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Affiliation(s)
- Levon M Khachigian
- Vascular Biology and Translational Research, Faculty of Medicine and Health, University of New South Wales, Sydney, NSW 2052, Australia.
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Piserchio A, Long K, Browning L, Bohanon A, Isiorho E, Dalby K, Ghose R. ADP enhances the allosteric activation of eukaryotic elongation factor 2 kinase by calmodulin. Proc Natl Acad Sci U S A 2023; 120:e2300902120. [PMID: 37068230 PMCID: PMC10151598 DOI: 10.1073/pnas.2300902120] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 03/06/2023] [Indexed: 04/19/2023] Open
Abstract
Protein translation, one of the most energy-consumptive processes in a eukaryotic cell, requires robust regulation, especially under energy-deprived conditions. A critical component of this regulation is the suppression of translational elongation through reduced ribosome association of the GTPase eukaryotic elongation factor 2 (eEF-2) resulting from its specific phosphorylation by the calmodulin (CaM)-activated α-kinase eEF-2 kinase (eEF-2K). It has been suggested that the eEF-2K response to reduced cellular energy levels is indirect and mediated by the universal energy sensor AMP-activated protein kinase (AMPK) through direct stimulatory phosphorylation and/or downregulation of the eEF-2K-inhibitory nutrient-sensing mTOR pathway. Here, we provide structural, biochemical, and cell-biological evidence of a direct energy-sensing role of eEF-2K through its stimulation by ADP. A crystal structure of the nucleotide-bound complex between CaM and the functional core of eEF-2K phosphorylated at its primary stimulatory site (T348) reveals ADP bound at a unique pocket located on the face opposite that housing the kinase active site. Within this basic pocket (BP), created at the CaM/eEF-2K interface upon complex formation, ADP is stabilized through numerous interactions with both interacting partners. Biochemical analyses using wild-type eEF-2K and specific BP mutants indicate that ADP stabilizes CaM within the active complex, increasing the sensitivity of the kinase to CaM. Induction of energy stress through glycolysis inhibition results in significantly reduced enhancement of phosphorylated eEF-2 levels in cells expressing ADP-binding compromised BP mutants compared to cells expressing wild-type eEF-2K. These results suggest a direct energy-sensing role for eEF-2K through its cooperative interaction with CaM and ADP.
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Affiliation(s)
- Andrea Piserchio
- Department of Chemistry and Biochemistry, The City College of New York, New York, NY10031
| | - Kimberly J. Long
- Division of Chemical Biology and Medicinal Chemistry, the University of Texas, Austin, TX78712
| | - Luke S. Browning
- Interdisciplinary Life Sciences Graduate Program, the University of Texas, Austin, TX78712
| | - Amanda L. Bohanon
- Interdisciplinary Life Sciences Graduate Program, the University of Texas, Austin, TX78712
| | - Eta A. Isiorho
- Macromolecular Crystallization Facility CUNY Advanced Science Research Center, New York, NY10031
| | - Kevin N. Dalby
- Division of Chemical Biology and Medicinal Chemistry, the University of Texas, Austin, TX78712
- Interdisciplinary Life Sciences Graduate Program, the University of Texas, Austin, TX78712
| | - Ranajeet Ghose
- Department of Chemistry and Biochemistry, The City College of New York, New York, NY10031
- PhD Program in Biochemistry, The Graduate Center of CUNY, New York, NY10016
- PhD Program in Chemistry, The Graduate Center of CUNY, New York, NY10016
- PhD Program in Physics, The Graduate Center of CUNY, New York, NY10016
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7
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Popovic R, Yu Y, Leal NS, Fedele G, Loh SHY, Martins LM. Upregulation of Tribbles decreases body weight and increases sleep duration. Dis Model Mech 2023; 16:dmm049942. [PMID: 37083954 PMCID: PMC10151826 DOI: 10.1242/dmm.049942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 03/16/2023] [Indexed: 04/22/2023] Open
Abstract
Eukaryotic Tribbles proteins are pseudoenzymes that regulate multiple aspects of intracellular signalling. Both Drosophila melanogaster and mammalian members of this family of pseudokinases act as negative regulators of insulin signalling. Mammalian tribbles pseudokinase (TRIB) genes have also been linked to insulin resistance and type 2 diabetes mellitus. Type 2 diabetes mellitus is associated with increased body weight, sleep problems and increased long-term mortality. Here, we investigated how manipulating the expression of Tribbles impacts body weight, sleep and mortality. We showed that the overexpression of Drosophila tribbles (trbl) in the fly fat body reduces both body weight and lifespan in adult flies without affecting food intake. Furthermore, it decreases the levels of Drosophila insulin-like peptide 2 (DILP2; ILP2) and increases night-time sleep. The three genes encoding TRIBs of mammals, TRIB1, TRIB2 and TRIB3, show both common and unique features. As the three human TRIB genes share features with Drosophila trbl, we further explored the links between TRIB genetic variants and both body weight and sleep in the human population. We identified associations between the polymorphisms and expression levels of the pseudokinases and markers of body weight and sleep duration. We conclude that Tribbles pseudokinases are involved in the control of body weight, lifespan and sleep.
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Affiliation(s)
- Rebeka Popovic
- MRC Toxicology Unit, University of Cambridge, Gleeson Building, Tennis Court Road, Cambridge CB2 1QR, UK
| | - Yizhou Yu
- MRC Toxicology Unit, University of Cambridge, Gleeson Building, Tennis Court Road, Cambridge CB2 1QR, UK
| | - Nuno Santos Leal
- MRC Toxicology Unit, University of Cambridge, Gleeson Building, Tennis Court Road, Cambridge CB2 1QR, UK
| | - Giorgio Fedele
- MRC Toxicology Unit, University of Cambridge, Gleeson Building, Tennis Court Road, Cambridge CB2 1QR, UK
| | - Samantha H. Y. Loh
- MRC Toxicology Unit, University of Cambridge, Gleeson Building, Tennis Court Road, Cambridge CB2 1QR, UK
| | - L. Miguel Martins
- MRC Toxicology Unit, University of Cambridge, Gleeson Building, Tennis Court Road, Cambridge CB2 1QR, UK
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Ainciburu M, Ezponda T, Berastegui N, Alfonso-Pierola A, Vilas-Zornoza A, San Martin-Uriz P, Alignani D, Lamo-Espinosa J, San-Julian M, Jiménez-Solas T, Lopez F, Muntion S, Sanchez-Guijo F, Molero A, Montoro J, Serrano G, Diaz-Mazkiaran A, Lasaga M, Gomez-Cabrero D, Diez-Campelo M, Valcarcel D, Hernaez M, Romero JP, Prosper F. Uncovering perturbations in human hematopoiesis associated with healthy aging and myeloid malignancies at single-cell resolution. eLife 2023; 12:79363. [PMID: 36629404 PMCID: PMC9904760 DOI: 10.7554/elife.79363] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 01/10/2023] [Indexed: 01/12/2023] Open
Abstract
Early hematopoiesis is a continuous process in which hematopoietic stem and progenitor cells (HSPCs) gradually differentiate toward specific lineages. Aging and myeloid malignant transformation are characterized by changes in the composition and regulation of HSPCs. In this study, we used single-cell RNA sequencing (scRNA-seq) to characterize an enriched population of human HSPCs obtained from young and elderly healthy individuals. Based on their transcriptional profile, we identified changes in the proportions of progenitor compartments during aging, and differences in their functionality, as evidenced by gene set enrichment analysis. Trajectory inference revealed that altered gene expression dynamics accompanied cell differentiation, which could explain aging-associated changes in hematopoiesis. Next, we focused on key regulators of transcription by constructing gene regulatory networks (GRNs) and detected regulons that were specifically active in elderly individuals. Using previous findings in healthy cells as a reference, we analyzed scRNA-seq data obtained from patients with myelodysplastic syndrome (MDS) and detected specific alterations of the expression dynamics of genes involved in erythroid differentiation in all patients with MDS such as TRIB2. In addition, the comparison between transcriptional programs and GRNs regulating normal HSPCs and MDS HSPCs allowed identification of regulons that were specifically active in MDS cases such as SMAD1, HOXA6, POU2F2, and RUNX1 suggesting a role of these transcription factors (TFs) in the pathogenesis of the disease. In summary, we demonstrate that the combination of single-cell technologies with computational analysis tools enable the study of a variety of cellular mechanisms involved in complex biological systems such as early hematopoiesis and can be used to dissect perturbed differentiation trajectories associated with perturbations such as aging and malignant transformation. Furthermore, the identification of abnormal regulatory mechanisms associated with myeloid malignancies could be exploited for personalized therapeutic approaches in individual patients.
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Affiliation(s)
- Marina Ainciburu
- Area de Hemato-Oncología, Centro de Investigación Médica Aplicada, Universidad de Navarra, Instituto de investigación sanitaria de Navarra (IDISNA)PamplonaSpain
- Centro de Investigación Biomédica en Red de CáncerMadridSpain
| | - Teresa Ezponda
- Area de Hemato-Oncología, Centro de Investigación Médica Aplicada, Universidad de Navarra, Instituto de investigación sanitaria de Navarra (IDISNA)PamplonaSpain
- Centro de Investigación Biomédica en Red de CáncerMadridSpain
| | - Nerea Berastegui
- Area de Hemato-Oncología, Centro de Investigación Médica Aplicada, Universidad de Navarra, Instituto de investigación sanitaria de Navarra (IDISNA)PamplonaSpain
| | - Ana Alfonso-Pierola
- Centro de Investigación Biomédica en Red de CáncerMadridSpain
- Clinica Universidad de NavarraPamplonaSpain
| | - Amaia Vilas-Zornoza
- Area de Hemato-Oncología, Centro de Investigación Médica Aplicada, Universidad de Navarra, Instituto de investigación sanitaria de Navarra (IDISNA)PamplonaSpain
- Centro de Investigación Biomédica en Red de CáncerMadridSpain
| | - Patxi San Martin-Uriz
- Area de Hemato-Oncología, Centro de Investigación Médica Aplicada, Universidad de Navarra, Instituto de investigación sanitaria de Navarra (IDISNA)PamplonaSpain
- Centro de Investigación Biomédica en Red de CáncerMadridSpain
| | - Diego Alignani
- Flow Cytometry Core, Universidad de NavarraPamplonaSpain
| | | | | | | | - Felix Lopez
- Hospital Universitario de SalamancaSalamancaSpain
| | - Sandra Muntion
- Hospital Universitario de SalamancaSalamancaSpain
- Red de Investigación Cooperativa en Terapia Celular TerCel, ISCIII.MadridSpain
| | - Fermin Sanchez-Guijo
- Hospital Universitario de SalamancaSalamancaSpain
- Red de Investigación Cooperativa en Terapia Celular TerCel, ISCIII.MadridSpain
| | - Antonieta Molero
- Department of Hematology, Vall d'Hebron Hospital UniversitariBarcelonaSpain
| | - Julia Montoro
- Department of Hematology, Vall d'Hebron Hospital UniversitariBarcelonaSpain
| | | | - Aintzane Diaz-Mazkiaran
- Centro de Investigación Biomédica en Red de CáncerMadridSpain
- Computational Biology Program, Universidad de NavarraPamplonaSpain
| | - Miren Lasaga
- Translational Bioinformatics Unit, NavarraBiomedPamplonaSpain
| | - David Gomez-Cabrero
- Translational Bioinformatics Unit, NavarraBiomedPamplonaSpain
- Biological & Environmental Sciences & Engineering Division, King Abdullah University of Science and TechnologyThuwalSaudi Arabia
| | | | - David Valcarcel
- Department of Hematology, Vall d'Hebron Hospital UniversitariBarcelonaSpain
| | - Mikel Hernaez
- Computational Biology Program, Universidad de NavarraPamplonaSpain
| | - Juan P Romero
- Area de Hemato-Oncología, Centro de Investigación Médica Aplicada, Universidad de Navarra, Instituto de investigación sanitaria de Navarra (IDISNA)PamplonaSpain
- Centro de Investigación Biomédica en Red de CáncerMadridSpain
| | - Felipe Prosper
- Area de Hemato-Oncología, Centro de Investigación Médica Aplicada, Universidad de Navarra, Instituto de investigación sanitaria de Navarra (IDISNA)PamplonaSpain
- Centro de Investigación Biomédica en Red de CáncerMadridSpain
- Clinica Universidad de NavarraPamplonaSpain
- Red de Investigación Cooperativa en Terapia Celular TerCel, ISCIII.MadridSpain
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Beghi S, Furmanik M, Jaminon A, Veltrop R, Rapp N, Wichapong K, Bidar E, Buschini A, Schurgers LJ. Calcium Signalling in Heart and Vessels: Role of Calmodulin and Downstream Calmodulin-Dependent Protein Kinases. Int J Mol Sci 2022; 23:ijms232416139. [PMID: 36555778 PMCID: PMC9783221 DOI: 10.3390/ijms232416139] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 12/11/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
Cardiovascular disease is the major cause of death worldwide. The success of medication and other preventive measures introduced in the last century have not yet halted the epidemic of cardiovascular disease. Although the molecular mechanisms of the pathophysiology of the heart and vessels have been extensively studied, the burden of ischemic cardiovascular conditions has risen to become a top cause of morbidity and mortality. Calcium has important functions in the cardiovascular system. Calcium is involved in the mechanism of excitation-contraction coupling that regulates numerous events, ranging from the production of action potentials to the contraction of cardiomyocytes and vascular smooth muscle cells. Both in the heart and vessels, the rise of intracellular calcium is sensed by calmodulin, a protein that regulates and activates downstream kinases involved in regulating calcium signalling. Among them is the calcium calmodulin kinase family, which is involved in the regulation of cardiac functions. In this review, we present the current literature regarding the role of calcium/calmodulin pathways in the heart and vessels with the aim to summarize our mechanistic understanding of this process and to open novel avenues for research.
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Affiliation(s)
- Sofia Beghi
- Cardiovascular Research Institute Maastricht (CARIM), Department of Biochemistry, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area Delle Scienze 11A, 43124 Parma, Italy
- Correspondence: ; Tel.: +39-3408473527
| | - Malgorzata Furmanik
- Cardiovascular Research Institute Maastricht (CARIM), Department of Biochemistry, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
| | - Armand Jaminon
- Cardiovascular Research Institute Maastricht (CARIM), Department of Biochemistry, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
| | - Rogier Veltrop
- Cardiovascular Research Institute Maastricht (CARIM), Department of Biochemistry, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
| | - Nikolas Rapp
- Cardiovascular Research Institute Maastricht (CARIM), Department of Biochemistry, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
| | - Kanin Wichapong
- Cardiovascular Research Institute Maastricht (CARIM), Department of Biochemistry, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
| | - Elham Bidar
- Department of Cardiothoracic Surgery, Heart and Vascular Centre, Maastricht University Medical Centre+, 6229 HX Maastricht, The Netherlands
| | - Annamaria Buschini
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area Delle Scienze 11A, 43124 Parma, Italy
| | - Leon J. Schurgers
- Cardiovascular Research Institute Maastricht (CARIM), Department of Biochemistry, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
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10
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Quilbé J, Nouwen N, Pervent M, Guyonnet R, Cullimore J, Gressent F, Araújo NH, Gully D, Klopp C, Giraud E, Arrighi JF. A mutant-based analysis of the establishment of Nod-independent symbiosis in the legume Aeschynomene evenia. Plant Physiol 2022; 190:1400-1417. [PMID: 35876558 PMCID: PMC9516736 DOI: 10.1093/plphys/kiac325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 06/10/2022] [Indexed: 06/15/2023]
Abstract
Intensive research on nitrogen-fixing symbiosis in two model legumes has uncovered the molecular mechanisms, whereby rhizobial Nod factors activate a plant symbiotic signaling pathway that controls infection and nodule organogenesis. In contrast, the so-called Nod-independent symbiosis found between Aeschynomene evenia and photosynthetic bradyrhizobia, which does not involve Nod factor recognition nor infection thread formation, is less well known. To gain knowledge on how Nod-independent symbiosis is established, we conducted a phenotypic and molecular characterization of A. evenia lines carrying mutations in different nodulation genes. Besides investigating the effect of the mutations on rhizobial symbiosis, we examined their consequences on mycorrhizal symbiosis and in nonsymbiotic conditions. Analyzing allelic mutant series for AePOLLUX, Ca2+/calmodulin dependent kinase, AeCYCLOPS, nodulation signaling pathway 2 (AeNSP2), and nodule inception demonstrated that these genes intervene at several stages of intercellular infection and during bacterial accommodation. We provide evidence that AeNSP2 has an additional nitrogen-dependent regulatory function in the formation of axillary root hairs at lateral root bases, which are rhizobia-colonized infection sites. Our investigation of the recently discovered symbiotic actor cysteine-rich receptor-like kinase specified that it is not involved in mycorrhization; however, it is essential for both symbiotic signaling and early infection during nodulation. These findings provide important insights on the modus operandi of Nod-independent symbiosis and contribute to the general understanding of how rhizobial-legume symbioses are established by complementing the information acquired in model legumes.
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Affiliation(s)
| | | | | | - Rémi Guyonnet
- IRD, Laboratoire des Symbioses Tropicales et Méditerranéennes (LSTM), UMR IRD/SupAgro/INRAE/UM/CIRAD, TA-A82/J-Campus de Baillarguet, Montpellier 34398, France
| | - Julie Cullimore
- Laboratory of Plant-Microbe Interactions and Environment (LIPME), University Toulouse III, INRAE, CNRS, Castanet-Tolosan, France
| | - Frédéric Gressent
- IRD, Laboratoire des Symbioses Tropicales et Méditerranéennes (LSTM), UMR IRD/SupAgro/INRAE/UM/CIRAD, TA-A82/J-Campus de Baillarguet, Montpellier 34398, France
- IRD, Plant Health Institute of Montpellier (PHIM), UMR IRD/SupAgro/INRAE/UM/CIRAD, TA-A82/J – Campus de Baillarguet, Montpellier 34398, France
| | - Natasha Horta Araújo
- IRD, Laboratoire des Symbioses Tropicales et Méditerranéennes (LSTM), UMR IRD/SupAgro/INRAE/UM/CIRAD, TA-A82/J-Campus de Baillarguet, Montpellier 34398, France
- IRD, Plant Health Institute of Montpellier (PHIM), UMR IRD/SupAgro/INRAE/UM/CIRAD, TA-A82/J – Campus de Baillarguet, Montpellier 34398, France
| | - Djamel Gully
- IRD, Laboratoire des Symbioses Tropicales et Méditerranéennes (LSTM), UMR IRD/SupAgro/INRAE/UM/CIRAD, TA-A82/J-Campus de Baillarguet, Montpellier 34398, France
- IRD, Plant Health Institute of Montpellier (PHIM), UMR IRD/SupAgro/INRAE/UM/CIRAD, TA-A82/J – Campus de Baillarguet, Montpellier 34398, France
| | - Christophe Klopp
- Plateforme Bioinformatique Genotoul, BioinfoMics, UR875 Biométrie et Intelligence Artificielle, INRAE, Castanet-Tolosan, France
| | - Eric Giraud
- IRD, Laboratoire des Symbioses Tropicales et Méditerranéennes (LSTM), UMR IRD/SupAgro/INRAE/UM/CIRAD, TA-A82/J-Campus de Baillarguet, Montpellier 34398, France
- IRD, Plant Health Institute of Montpellier (PHIM), UMR IRD/SupAgro/INRAE/UM/CIRAD, TA-A82/J – Campus de Baillarguet, Montpellier 34398, France
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11
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Bredow M, Monaghan J. Cross-kingdom regulation of calcium- and/or calmodulin-dependent protein kinases by phospho-switches that relieve autoinhibition. Curr Opin Plant Biol 2022; 68:102251. [PMID: 35767936 DOI: 10.1016/j.pbi.2022.102251] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 05/04/2022] [Accepted: 05/26/2022] [Indexed: 06/15/2023]
Abstract
Mechanisms to sense and respond to calcium have evolved in all organisms. Calmodulin is a universal calcium sensor across eukaryotes that directly binds calcium and associates with many downstream signal transducers including protein kinases. All eukaryotes encode calcium-dependent and/or calmodulin-dependent kinases, however there are distinct protein families across kingdoms. Here, we compare the activation mechanisms of calmodulin-dependent protein kinases (CaMKs), calcium- and calmodulin-dependent protein kinases (CCaMKs) and calcium-dependent protein kinases (CDPKs), noting striking similarities regarding phosphorylation in a regulatory segment known as the autoinhibitory junction. We thus propose that conserved regulation by phosphorylation underlies the activation of calcium-responsive proteins from different kingdoms.
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Affiliation(s)
- Melissa Bredow
- Department of Plant Pathology and Microbiology, Iowa State University, Ames IA, USA.
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12
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Ni L, Wang Q, Chen C, Wang S, Shen T, Jiang J, Cui Z, Li K, Yang Q, Jiang M. OsDMI3-mediated OsUXS3 phosphorylation improves oxidative stress tolerance by modulating OsCATB protein abundance in rice. J Integr Plant Biol 2022; 64:1087-1101. [PMID: 35348292 DOI: 10.1111/jipb.13255] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 03/27/2022] [Indexed: 06/14/2023]
Abstract
Calcium (Ca2+ )/calmodulin (CaM)-dependent protein kinase (CCaMK) is an important positive regulator of antioxidant defenses and tolerance against oxidative stress. However, the underlying molecular mechanisms are largely unknown. Here, we report that the rice (Oryza sativa) CCaMK (OsDMI3) physically interacts with and phosphorylates OsUXS3, a cytosol-localized UDP-xylose synthase. Genetic and biochemical evidence demonstrated that OsUXS3 acts downstream of OsDMI3 to enhance the oxidative stress tolerance conferred by higher catalase (CAT) activity. Indeed, OsUXS3 interacted with CAT isozyme B (OsCATB), and this interaction was required to increase OsCATB protein abundance under oxidative stress conditions. Furthermore, we showed that OsDMI3 phosphorylates OsUXS3 on residue Ser-245, thereby further promoting the interaction between OsUXS3 and OsCATB. Our results indicate that OsDMI3 promotes the association of OsUXS3 with OsCATB to enhance CAT activity under oxidative stress. These findings reveal OsUXS3 as a direct target of OsDMI3 and demonstrate its involvement in antioxidant defense.
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Affiliation(s)
- Lan Ni
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Qingwen Wang
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Chao Chen
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Shuang Wang
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Tao Shen
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jingjing Jiang
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Zhenzhen Cui
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Kaiyue Li
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Qiqing Yang
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Mingyi Jiang
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing, 210095, China
- Southern Regional Collaborative Innovation Center for Grain and Oil Crops in China, Hunan Agricultural University, Changsha, 410128, China
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13
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Ma B, Hao J, Xu H, Liu L, Wang W, Chen S, Wu H. Rutin promotes white adipose tissue "browning" and brown adipose tissue activation partially through the calmodulin-dependent protein kinase kinase β/AMP-activated protein kinase pathway. Endocr J 2022; 69:385-397. [PMID: 34719526 DOI: 10.1507/endocrj.ej21-0441] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Promoting white adipose tissue (WAT) "browning" and brown adipose tissue (BAT) activation could contribute to increasing energy expenditure. We explored the mechanisms by which the natural compound rutin induced adipose tissue differentiation and ameliorated obesity in vivo and in vitro. 3T3-L1 preadipocytes were cultured in adipogenic differentiation media with/out rutin. Male C57BL/6 mice (n = 6) were fed a high-fat diet (HFD) for 12 weeks with/out rutin. In HFD-fed mice, rutin treatment significantly inhibited weight gain, improved the metabolic profile of plasma samples, decreased the weights of epididymal WAT (eWAT), inguina WAT (iWAT), and liver, and adipocyte size. Furthermore, rutin also increased the expression of uncoupling protein 1 (Ucp-1) and other thermogenic markers in the WAT and BAT. In 3T3-L1 cells, rutin effectively reduced the formation of lipid droplets, stimulated the expression of thermogenic markers, and reduced the expression of adipogenic genes. Additionally, rutin markedly upregulated the AMP-activated protein kinase (AMPK) pathway, and these effects were diminished by treatment with the AMPK inhibitor compound C (CC). Pretreatment with the calmodulin-dependent protein kinase kinase β (CaMKKβ) inhibitor STO-609 blocked the induction of thermogenic markers in 3T3-L1 cells by rutin. Our results indicated that rutin increased energy consumption, induced WAT "browning" and BAT activation, and thus was a promising target for the development of new therapeutic approaches to improve adipose tissue energy metabolism.
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Affiliation(s)
- Beibei Ma
- Graduate School, Shanxi Medical University, Taiyuan, 030000, Shanxi, PR China
| | - Jinhui Hao
- Department of Clinical Medicine, Fenyang College of Shanxi Medical University, Feiyang, 032200, Shanxi, PR China
| | - Hongmin Xu
- Graduate School, Shanxi Medical University, Taiyuan, 030000, Shanxi, PR China
| | - Li Liu
- Graduate School, Shanxi Medical University, Taiyuan, 030000, Shanxi, PR China
| | - Wendi Wang
- Department of Physiology, Fenyang College of Shanxi Medical University, Feiyang, 032200, Shanxi, PR China
| | - Shizhang Chen
- Department of Medical Laboratory Science, Fenyang College of Shanxi Medical University, Feiyang, 032200, Shanxi, PR China
| | - Huiwen Wu
- Science and Technology Center, Fenyang College of Shanxi Medical University, Feiyang, 032200, Shanxi, PR China
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14
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Ferdowsi PV, Ahuja KDK, Beckett JM, Myers S. Capsaicin and Zinc Promote Glucose Uptake in C2C12 Skeletal Muscle Cells through a Common Calcium Signalling Pathway. Int J Mol Sci 2022; 23:ijms23042207. [PMID: 35216322 PMCID: PMC8879034 DOI: 10.3390/ijms23042207] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Accepted: 02/10/2022] [Indexed: 02/07/2023] Open
Abstract
Capsaicin and zinc have recently been highlighted as potential treatments for glucose metabolism disorders; however, the effect of these two natural compounds on signalling pathways involved in glucose metabolism is still uncertain. In this study, we assessed the capsaicin- or zinc- induced activation of signalling molecules including calcium/calmodulin-dependent protein kinase 2 (CAMKK2), cAMP-response element-binding protein (CREB), and target of rapamycin kinase complex 1 (TORC1). Moreover, the expression status of genes associated with the control of glucose metabolism was measured in treated cells. The activation of cell signalling proteins was then evaluated in capsaicin- or zinc treated cells in the presence or absence of cell-permeant calcium chelator (BAPTA-AM) and the CAMKK inhibitor (STO-609). Finally, capsaicin- and zinc-induced glucose uptake was measured in the cells pre-treated with or without BAPTA-AM. Our results indicate that calcium flux induced by capsaicin or zinc led to activation of calcium signalling molecules and promoting glucose uptake in skeletal muscle cells. Pharmacological inhibition of CAMKK diminished activation of signalling molecules. Moreover, we observed an increase in intracellular cAMP levels in the cells after treatment with capsaicin and zinc. Our data show that capsaicin and zinc mediate glucose uptake in C2C12 skeletal muscle cells through the activation of calcium signalling.
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15
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Xiang C, Liu X, Zhou D, Zhou Y, Wang X, Chen F. Identification of a glioma functional network from gene fitness data using machine learning. J Cell Mol Med 2022; 26:1253-1263. [PMID: 35044082 PMCID: PMC8831986 DOI: 10.1111/jcmm.17182] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 12/25/2021] [Accepted: 01/03/2022] [Indexed: 01/02/2023] Open
Abstract
Glioblastoma multiforme (GBM) is an aggressive form of brain tumours that remains incurable despite recent advances in clinical treatments. Previous studies have focused on sub-categorizing patient samples based on clustering various transcriptomic data. While functional genomics data are rapidly accumulating, there exist opportunities to leverage these data to decipher glioma-associated biomarkers. We sought to implement a systematic approach to integrating data from high throughput CRISPR-Cas9 screening studies with machine learning algorithms to infer a glioma functional network. We demonstrated the network significantly enriched various biological pathways and may play roles in glioma tumorigenesis. From densely connected glioma functional modules, we further predicted 12 potential Wnt/β-catenin signalling pathway targeted genes, including AARSD1, HOXB5, ITGA6, LRRC71, MED19, MED24, METTL11B, SMARCB1, SMARCE1, TAF6L, TENT5A and ZNF281. Cox regression modelling with these targets was significantly associated with glioma overall survival prognosis. Additionally, TRIB2 was identified as a glioma neoplastic cell marker in single-cell RNA-seq of GBM samples. This work establishes novel strategies for constructing functional networks to identify glioma biomarkers for the development of diagnosis and treatment in clinical practice.
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Affiliation(s)
- Chun‐xiang Xiang
- Department of PathologyXiangyang Central HospitalAffiliated Hospital of Hubei University of Arts and ScienceXiangyang, HubeiChina
| | - Xi‐guo Liu
- Department of Head and Neck SurgeryHubei Cancer HospitalWuhan, HubeiChina
| | - Da‐quan Zhou
- Department of NeurosurgeryXiangyang Central HospitalAffiliated Hospital of Hubei University of Arts and ScienceXiangyang, HubeiChina
| | - Yi Zhou
- Department of NeurosurgeryXiangyang Central HospitalAffiliated Hospital of Hubei University of Arts and ScienceXiangyang, HubeiChina
| | - Xu Wang
- Department of NeurosurgeryXiangyang Central HospitalAffiliated Hospital of Hubei University of Arts and ScienceXiangyang, HubeiChina
| | - Feng Chen
- Department of NeurosurgeryXiangyang Central HospitalAffiliated Hospital of Hubei University of Arts and ScienceXiangyang, HubeiChina
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16
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Monga J, Adrianto I, Rogers C, Gadgeel S, Chitale D, Alumkal JJ, Beltran H, Zoubeidi A, Ghosh J. Tribbles 2 pseudokinase confers enzalutamide resistance in prostate cancer by promoting lineage plasticity. J Biol Chem 2022; 298:101556. [PMID: 34973338 PMCID: PMC8800106 DOI: 10.1016/j.jbc.2021.101556] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 12/10/2021] [Accepted: 12/12/2021] [Indexed: 02/03/2023] Open
Abstract
Enzalutamide, a second-generation antiandrogen, is commonly prescribed for the therapy of advanced prostate cancer, but enzalutamide-resistant, lethal, or incurable disease invariably develops. To understand the molecular mechanism(s) behind enzalutamide resistance, here, we comprehensively analyzed a range of prostate tumors and clinically relevant models by gene expression array, immunohistochemistry, and Western blot, which revealed that enzalutamide-resistant prostate cancer cells and tumors overexpress the pseudokinase, Tribbles 2 (TRIB2). Inhibition of TRIB2 decreases the viability of enzalutamide-resistant prostate cancer cells, suggesting a critical role of TRIB2 in these cells. Moreover, the overexpression of TRIB2 confers resistance in prostate cancer cells to clinically relevant doses of enzalutamide, and this resistance is lost upon inhibition of TRIB2. Interestingly, we found that TRIB2 downregulates the luminal markers androgen receptor and cytokeratin 8 in prostate cancer cells but upregulates the neuronal transcription factor BRN2 (Brain-2) and the stemness factor SOX2 (SRY-box 2) to induce neuroendocrine characteristics. Finally, we show that inhibition of either TRIB2 or its downstream targets, BRN2 or SOX2, resensitizes resistant prostate cancer cells to enzalutamide. Thus, TRIB2 emerges as a potential new regulator of transdifferentiation that confers enzalutamide resistance in prostate cancer cells via a mechanism involving increased cellular plasticity and lineage switching.
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Affiliation(s)
- Jitender Monga
- Vattikuti Urology Institute, Henry Ford Health System, Detroit, Michigan, USA
| | - Indra Adrianto
- Public Health Sciences, Henry Ford Health System, Detroit, Michigan, USA
| | - Craig Rogers
- Vattikuti Urology Institute, Henry Ford Health System, Detroit, Michigan, USA; Henry Ford Cancer Institute, Henry Ford Health System, Detroit, Michigan, USA
| | - Shirish Gadgeel
- Henry Ford Cancer Institute, Henry Ford Health System, Detroit, Michigan, USA
| | - Dhananjay Chitale
- Henry Ford Cancer Institute, Henry Ford Health System, Detroit, Michigan, USA; Department of Pathology, Henry Ford Health System, Detroit, Michigan, USA
| | - Joshi J Alumkal
- Department of Internal Medicine, Univeristy of Michigan Rogel Cancer Center, Ann Arbor, Michigan, USA
| | - Himisha Beltran
- Department of Medical Oncology, Dana Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts, USA
| | - Amina Zoubeidi
- Department of Urologic Sciences, University of British Columbia and The Vancouver Prostate Centre, Vancouver, British Columbia, Canada
| | - Jagadananda Ghosh
- Vattikuti Urology Institute, Henry Ford Health System, Detroit, Michigan, USA; Henry Ford Cancer Institute, Henry Ford Health System, Detroit, Michigan, USA.
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17
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De-Paula VJ, Forlenza OV. Lithium modulates multiple tau kinases with distinct effects in cortical and hippocampal neurons according to concentration ranges. Naunyn Schmiedebergs Arch Pharmacol 2021; 395:105-113. [PMID: 34751792 DOI: 10.1007/s00210-021-02171-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 10/19/2021] [Indexed: 11/26/2022]
Abstract
The hyperphosphorylation of tau is a central mechanism in the pathogenesis of Alzheimer's disease (AD). Lithium is a potent inhibitor of glycogen synthase kinase-3beta (GSK3β), the most important tau kinase in neurons, and may also affect tau phosphorylation by modifying the expression and/or activity of other kinases, such as protein kinase A (PKA), Akt (PKB), and calcium calmodulin kinase-II (CaMKII). The aim of the present study is to determine the effect of chronic lithium treatment on the protein expression of tau and its major kinases in cortical and hippocampal neurons, at distinct working concentrations. Primary cultures of cortical and hippocampal neurons were treated with sub-therapeutic (0.02 mM and 0.2 mM) and therapeutic (2 mM) concentrations of lithium for 7 days. Protein expression of tau and tau-kinases was determined by immunoblotting. An indirect estimate of GSK3β activity was determined by the GSK3β ratio (rGSKβ). Statistically significant increments in the protein expression of tau and CaMKII were observed both in cortical and hippocampal neurons treated with subtherapeutic doses of lithium. GSK3β activity was increased in cortical, but decreased in hippocampal neurons. Distinct patterns of changes in the expression of the remaining tau tau-kinases were observed: in cortical neurons, lithium treatment was associated with consistent decrements in Akt and PKA, whereas hippocampal neurons displayed increased protein expression of Akt and decreased PKA. Our results suggest that chronic lithium treatment may yield distinct biological effects depending on the concentration range, with regional specificity. We further suggest that hippocampal neurons may be more sensitive to the effect of lithium, presenting with changes in the expression of tau-related proteins at subtherapeutic doses, which may not be mirrored by the effects observed in cortical neurons.
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Affiliation(s)
- V J De-Paula
- Laboratório de Neurociências (LIM-27), Departamento E Instituto de Psiquiatria, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil.
- Laboratório de Psicobiologia (LIM-23), Instituto de Psiquiatria, Hospital das Clinicas da Faculdade de Medicina da USP, Rua Dr. Ovídio Pires de Campos 785, São Paulo, SP, 05403-903, Brazil.
| | - O V Forlenza
- Laboratório de Neurociências (LIM-27), Departamento E Instituto de Psiquiatria, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
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18
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Altobelli GG, Van Noorden S, Cimini D, Illario M, Sorriento D, Cimini V. Calcium/calmodulin-dependent kinases can regulate the TSH expression in the rat pituitary. J Endocrinol Invest 2021; 44:2387-2394. [PMID: 33743173 DOI: 10.1007/s40618-021-01545-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 02/26/2021] [Indexed: 10/21/2022]
Abstract
PURPOSE The endocrine secretion of TSH is a finely orchestrated process controlled by the thyrotropin-releasing hormone (TRH). Its homeostasis and signaling rely on many calcium-binding proteins belonging to the "EF-hand" protein family. The Ca2+/calmodulin (CaM) complex is associated with Ca2+/CaM-dependent kinases (Ca2+/CaMK). We have investigated Ca2+/CaMK expression and regulation in the rat pituitary. METHODS The expression of CaMKII and CaMKIV in rat anterior pituitary cells was shown by immunohistochemistry. Cultured anterior pituitary cells were stimulated by TRH in the presence and absence of KN93, the pharmacological inhibitor of CaMKII and CaMKIV. Western blotting was then used to measure the expression of these kinases and of the cAMP response element-binding protein (CREB). TSH production was measured by RIA after time-dependent stimulation with TRH. Cells were infected with a lentiviral construct coding for CaMKIV followed by measurement of CREB phosphorylation and TSH. RESULTS Our study shows that two CaM kinases, CaMKII and CaMKII, are expressed in rat pituitary cells and their phosphorylation in response to TRH occurs at different time points, with CaMKIV being activated earlier than CaMKII. TRH induces CREB phosphorylation through the activity of both CaMKII and CaMKIV. The activation of CREB increases TSH gene expression. CaMKIV induces CREB phosphorylation while its dominant negative and KN93 exert the opposite effects. CONCLUSION Our data indicate that the expression of Ca2+/CaMK in rat anterior pituitary are correlated to the role of CREB in the genetic regulation of TSH, and that TRH stimulation activates CaMKIV, which in turn phosphorylates CREB. This phosphorylation is linked to the production of thyrotropin.
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Affiliation(s)
- G G Altobelli
- Department of Advanced Biomedical Sciences, Medical School, "Federico II" University of Naples, Naples, Italy.
| | - S Van Noorden
- Department of Histopathology, Imperial College London, Hammersmith Hospital, London, UK
| | - D Cimini
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania Luigi Vanvitelli, Caserta, Italy
| | - M Illario
- Department of Public Health, Medical School, "Federico II" University of Naples, Naples, Italy
| | - D Sorriento
- Department of Advanced Biomedical Sciences, Medical School, "Federico II" University of Naples, Naples, Italy
| | - V Cimini
- Department of Advanced Biomedical Sciences, Medical School, "Federico II" University of Naples, Naples, Italy.
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19
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Janczi T, Meier F, Fehrl Y, Kinne RW, Böhm B, Burkhardt H. A Novel Pro-Inflammatory Mechanosensing Pathway Orchestrated by the Disintegrin Metalloproteinase ADAM15 in Synovial Fibroblasts. Cells 2021; 10:cells10102705. [PMID: 34685689 PMCID: PMC8534551 DOI: 10.3390/cells10102705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 10/06/2021] [Accepted: 10/07/2021] [Indexed: 11/16/2022] Open
Abstract
Mechanotransduction is elicited in cells upon the perception of physical forces transmitted via the extracellular matrix in their surroundings and results in signaling events that impact cellular functions. This physiological process is a prerequisite for maintaining the integrity of diarthrodial joints, while excessive loading is a factor promoting the inflammatory mechanisms of joint destruction. Here, we describe a mechanotransduction pathway in synovial fibroblasts (SF) derived from the synovial membrane of inflamed joints. The functionality of this pathway is completely lost in the absence of the disintegrin metalloproteinase ADAM15 strongly upregulated in SF. The mechanosignaling events involve the Ca2+-dependent activation of c-Jun-N-terminal kinases, the subsequent downregulation of long noncoding RNA HOTAIR, and upregulation of the metabolic energy sensor sirtuin-1. This afferent loop of the pathway is facilitated by ADAM15 via promoting the cell membrane density of the constitutively cycling mechanosensitive transient receptor potential vanilloid 4 calcium channels. In addition, ADAM15 reinforces the Src-mediated activation of pannexin-1 channels required for the enhanced release of ATP, a mediator of purinergic inflammation, which is increasingly produced upon sirtuin-1 induction.
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Affiliation(s)
- Tomasz Janczi
- Division of Rheumatology, University Hospital Frankfurt, Goethe University Frankfurt am Main, 60590 Frankfurt am Main, Germany; (T.J.); (F.M.); (Y.F.)
| | - Florian Meier
- Division of Rheumatology, University Hospital Frankfurt, Goethe University Frankfurt am Main, 60590 Frankfurt am Main, Germany; (T.J.); (F.M.); (Y.F.)
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, 60590 Frankfurt am Main, Germany
| | - Yuliya Fehrl
- Division of Rheumatology, University Hospital Frankfurt, Goethe University Frankfurt am Main, 60590 Frankfurt am Main, Germany; (T.J.); (F.M.); (Y.F.)
| | - Raimund W. Kinne
- Experimental Rheumatology Unit, Department of Orthopedics, Jena University Hospital, Waldkliniken Eisenberg GmbH, 07607 Eisenberg, Germany;
| | - Beate Böhm
- Division of Rheumatology, University Hospital Frankfurt, Goethe University Frankfurt am Main, 60590 Frankfurt am Main, Germany; (T.J.); (F.M.); (Y.F.)
- Correspondence: (B.B.); (H.B.)
| | - Harald Burkhardt
- Division of Rheumatology, University Hospital Frankfurt, Goethe University Frankfurt am Main, 60590 Frankfurt am Main, Germany; (T.J.); (F.M.); (Y.F.)
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, 60590 Frankfurt am Main, Germany
- Fraunhofer Cluster of Excellence Immune-Mediated Diseases CIMD, 60590 Frankfurt am Main, Germany
- Correspondence: (B.B.); (H.B.)
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20
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Yang J, Ji L, Liu S, Jing P, Hu J, Jin D, Wang L, Xie G. The CaM1-associated CCaMK-MKK1/6 cascade positively affects lateral root growth via auxin signaling under salt stress in rice. J Exp Bot 2021; 72:6611-6627. [PMID: 34129028 DOI: 10.1093/jxb/erab287] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 06/12/2021] [Indexed: 06/12/2023]
Abstract
Ca2+/calmodulin (CaM)-dependent protein kinases (CCaMKs) and mitogen-activated protein kinase kinases (MAPKKs) are two types of kinases that regulate salt stress response in plants. It remains unclear, however, how they cooperatively affect lateral root growth under salt stress. Here, two conserved phosphorylation sites (S102 and T118) of OsCaM1 were identified, and found to affect the ability to bind to Ca2+in vitro and the kinase activity of OsCCaMK in vivo. OsCCaMK specifically interacted with OsMKK1/6 in a Ca2+/CaM-dependent manner. In vitro kinase and in vivo dual-luciferase assays revealed that OsCCaMK phosphorylated OsMKK6 while OsMKK1 phosphorylated OsCCaMK. Overexpression and antisense-RNA repression expression of OsCaM1-1, and CRISPR/Cas9-mediated gene editing mutations of OsMKK1, OsMKK6, and OsMKK1/6 proved that OsCaM1-1, OsMKK1, and OsMKK6 enhanced the auxin content in roots and lateral root growth under salt stress. Consistently, OsCaM1-1, OsMKK1, and OsMKK6 regulated the transcript levels of the genes of this cascade, and salt stress-related and lateral root growth-related auxin signaling under salt stress in rice roots. These findings demonstrate that the OsCaM1-associated OsCCaMK-OsMKK1/6 cascade plays a critical role in recruiting auxin signaling in rice roots. These results also provide new insight into the regulatory mechanism of the CaM-mediated phosphorylation relay cascade to auxin signaling in lateral root growth under salt stress in plants.
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Affiliation(s)
- Jun Yang
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, Huazhong Agricultural University, Wuhan 430070, China
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Lingxiao Ji
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, Huazhong Agricultural University, Wuhan 430070, China
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Shuang Liu
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, Huazhong Agricultural University, Wuhan 430070, China
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Pei Jing
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, Huazhong Agricultural University, Wuhan 430070, China
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Jin Hu
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, Huazhong Agricultural University, Wuhan 430070, China
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Deming Jin
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, Huazhong Agricultural University, Wuhan 430070, China
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Lingqiang Wang
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, Nanning 530004, China
| | - Guosheng Xie
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, Huazhong Agricultural University, Wuhan 430070, China
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
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21
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Liu Z, Wu K, Gu S, Wang W, Xie S, Lu T, Li L, Dong C, Wang X, Zhou Y. A methyltransferase-like 14/miR-99a-5p/tribble 2 positive feedback circuit promotes cancer stem cell persistence and radioresistance via histone deacetylase 2-mediated epigenetic modulation in esophageal squamous cell carcinoma. Clin Transl Med 2021; 11:e545. [PMID: 34586732 PMCID: PMC8441142 DOI: 10.1002/ctm2.545] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 08/04/2021] [Accepted: 08/09/2021] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Esophageal squamous cell carcinoma (ESCC) is a highly aggressive and treatment-resistant tumor. The biological implications and molecular mechanism of cancer stem-like cells (CSCs) in ESCC, which contribute to therapeutic resistance such as radioresistance, remain elusive. METHODS Quantitative real-time polymerase chain reaction, western blotting, immunohistochemistry, and in situ hybridization assays were used to detect methyltransferase-like 14 miR-99a-5p tribble 2 (METTL14/miR-99a-5p/TRIB2) expression in ESCC. The biological functions of METTL14/miR-99a-5p/TRIB2 were demonstrated in vitro and in vivo. Mass spectrum analysis was used to identify the downstream proteins regulated by TRIB2. Chromatin immunoprecipitation (IP), IP, N6 -methyladenosine (m6 A)-RNA IP, luciferase reporter, and ubiquitination assays were employed to explore the molecular mechanisms underlying this feedback circuit and its downstream pathways. RESULTS We found that miR-99a-5p was significantly decreased in ESCC. miR-99a-5p inhibited CSCs persistence and the radioresistance of ESCC cells, and miR-99a-5p downregulation predicted an unfavorable prognosis of ESCC patients. Mechanically, we unveiled a METTL14-miR-99a-5p-TRIB2 positive feedback loop that enhances CSC properties and radioresistance of ESCC cells. METTL14, an m6 A RNA methyltransferase downregulated in ESCC, suppresses TRIB2 expression via miR-99a-5p-mediated degradation of TRIB2 mRNA by targeting its 3' untranslated region, whereas TRIB2 induces ubiquitin-mediated proteasomal degradation of METTL14 in a COP1-dependent manner. METTL14 upregulates miR-99a-5p by modulating m6 A-mediated, DiGeorge critical region 8-dependent pri-mir-99a processing. Hyperactivation of TRIB2 resulting from this positive circuit was closely correlated with radioresistance and CSC characteristics. Furthermore, TRIB2 activates HDAC2 and subsequently induces p21 epigenetic repression through Akt/mTOR/S6K1 signaling pathway activation. Pharmacologic inhibition of HDAC2 effectively attenuates the TRIB2-mediated effect both in vitro and in patient-derived xenograft models. CONCLUSION Our data highlight the presence of the METTL14/miR-99a-5p/TRIB2 axis and show that it is positively associated with CSC characteristics and radioresistance of ESCC, suggesting potential therapeutic targets for ESCC treatment.
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Affiliation(s)
- Zhenchuan Liu
- Department of Thoracic Surgery, Shanghai Tongji Hospital, School of MedicineTongji UniversityShanghaiP.R. China
| | - Kaiqing Wu
- Department of Thoracic Surgery, Shanghai Tongji Hospital, School of MedicineTongji UniversityShanghaiP.R. China
| | - Shaorui Gu
- Department of Thoracic Surgery, Shanghai Tongji Hospital, School of MedicineTongji UniversityShanghaiP.R. China
| | - Wenli Wang
- Department of Thoracic Surgery, Shanghai Tongji Hospital, School of MedicineTongji UniversityShanghaiP.R. China
| | - Shiliang Xie
- Department of Thoracic Surgery, Shanghai Tongji Hospital, School of MedicineTongji UniversityShanghaiP.R. China
| | - Tiancheng Lu
- Department of Thoracic Surgery, Shanghai Tongji Hospital, School of MedicineTongji UniversityShanghaiP.R. China
| | - Lei Li
- Department of Thoracic Surgery, Shanghai Tongji Hospital, School of MedicineTongji UniversityShanghaiP.R. China
| | - Chenglai Dong
- Department of Thoracic Surgery, Shanghai Tongji Hospital, School of MedicineTongji UniversityShanghaiP.R. China
| | - Xishi Wang
- Department of Thoracic Surgery, Shanghai Tongji Hospital, School of MedicineTongji UniversityShanghaiP.R. China
| | - Yongxin Zhou
- Department of Thoracic Surgery, Shanghai Tongji Hospital, School of MedicineTongji UniversityShanghaiP.R. China
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22
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Kim DK, Kim YN, Kim YE, Lee SY, Shin MJ, Do EK, Choi KU, Kim SC, Kim KH, Suh DS, Song P, Kim JH. TRIB2 Stimulates Cancer Stem-Like Properties through Activating the AKT-GSK3β-β-Catenin Signaling Axis. Mol Cells 2021; 44:481-492. [PMID: 34326276 PMCID: PMC8334352 DOI: 10.14348/molcells.2021.0030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 04/11/2021] [Accepted: 05/28/2021] [Indexed: 12/13/2022] Open
Abstract
Tribbles homolog 2 (TRIB2) is implicated in tumorigenesis and drug resistance in various types of cancers. However, the role of TRIB2 in the regulation of tumorigenesis and drug resistance of cancer stem cells (CSCs) is still elusive. In the present study, we showed increased expression of TRIB2 in spheroid-forming and aldehyde dehydrogenase-positive CSC populations of A2780 epithelial ovarian cancer cells. Short hairpin RNA-mediated silencing of TRIB2 expression attenuates the spheroid-forming, migratory, tumorigenic, and drug-resistant properties of A2780 cells, whereas overexpression of TRIB2 increases the CSC-like characteristics. TRIB2 overexpression induced GSK3β inactivation by augmenting AKT-dependent phosphorylation of GSK3β at Ser9, followed by increasing β-catenin level via reducing the GSK3β-mediated phosphorylation of β-catenin. Treatment of TRIB2-ovexpressed A2780 cells with the phosphoinositide-3-kinase inhibitor LY294002 abrogated TRIB2-stimulated proliferation, migration, drug resistance of A2780 cells. These results suggest a critical role for TRIB2 in the regulation of CSC-like properties by increasing the stability of β-catenin protein via the AKT-GSK3β-dependent pathways.
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Affiliation(s)
- Dae Kyoung Kim
- Department of Physiology, School of Medicine, Pusan National University, Yangsan 50612, Korea
| | - Yu Na Kim
- Department of Physiology, School of Medicine, Pusan National University, Yangsan 50612, Korea
| | - Ye Eun Kim
- Department of Physiology, School of Medicine, Pusan National University, Yangsan 50612, Korea
| | - Seo Yul Lee
- Department of Physiology, School of Medicine, Pusan National University, Yangsan 50612, Korea
| | - Min Joo Shin
- Department of Physiology, School of Medicine, Pusan National University, Yangsan 50612, Korea
| | - Eun Kyoung Do
- Department of Physiology, School of Medicine, Pusan National University, Yangsan 50612, Korea
| | - Kyung-Un Choi
- Department of Pathology, School of Medicine, Pusan National University, Yangsan 50612, Korea
| | - Seung-Chul Kim
- Department of Obstetrics and Gynecology, School of Medicine, Pusan National University, Yangsan 50612, Korea
| | - Ki-Hyung Kim
- Department of Obstetrics and Gynecology, School of Medicine, Pusan National University, Yangsan 50612, Korea
| | - Dong-Soo Suh
- Department of Obstetrics and Gynecology, School of Medicine, Pusan National University, Yangsan 50612, Korea
| | - Parkyong Song
- Department of Convergence Medicine, School of Medicine, Pusan National University, Yangsan 50612, Korea
| | - Jae Ho Kim
- Department of Physiology, School of Medicine, Pusan National University, Yangsan 50612, Korea
- Research Institute of Convergence Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan 50612, Korea
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23
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Bernhem K, Fontana JM, Svensson D, Zhang L, Nilsson LM, Scott L, Blom H, Brismar H, Aperia A. Super-resolution microscopy reveals that Na +/K +-ATPase signaling protects against glucose-induced apoptosis by deactivating Bad. Cell Death Dis 2021; 12:739. [PMID: 34315852 PMCID: PMC8316575 DOI: 10.1038/s41419-021-04025-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 07/14/2021] [Accepted: 07/14/2021] [Indexed: 11/08/2022]
Abstract
Activation of the apoptotic pathway is a major cause of progressive loss of function in chronic diseases such as neurodegenerative and diabetic kidney diseases. There is an unmet need for an anti-apoptotic drug that acts in the early stage of the apoptotic process. The multifunctional protein Na+,K+-ATPase has, in addition to its role as a transporter, a signaling function that is activated by its ligand, the cardiotonic steroid ouabain. Several lines of evidence suggest that sub-saturating concentrations of ouabain protect against apoptosis of renal epithelial cells, a common complication and major cause of death in diabetic patients. Here, we induced apoptosis in primary rat renal epithelial cells by exposing them to an elevated glucose concentration (20 mM) and visualized the early steps in the apoptotic process using super-resolution microscopy. Treatment with 10 nM ouabain interfered with the onset of the apoptotic process by inhibiting the activation of the BH3-only protein Bad and its translocation to mitochondria. This occurred before the pro-apoptotic protein Bax had been recruited to mitochondria. Two ouabain regulated and Akt activating Ca2+/calmodulin-dependent kinases were found to play an essential role in the ouabain anti-apoptotic effect. Our results set the stage for further exploration of ouabain as an anti-apoptotic drug in diabetic kidney disease as well as in other chronic diseases associated with excessive apoptosis.
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Affiliation(s)
- Kristoffer Bernhem
- Science for Life Laboratory, Department of Applied Physics, Royal Institute of Technology, Solna, Sweden
| | - Jacopo M Fontana
- Science for Life Laboratory, Department of Applied Physics, Royal Institute of Technology, Solna, Sweden
| | - Daniel Svensson
- Science for Life Laboratory, Department of Women's and Children's Health, Karolinska Institutet, Solna, Sweden
| | - Liang Zhang
- Science for Life Laboratory, Department of Women's and Children's Health, Karolinska Institutet, Solna, Sweden
| | - Linnéa M Nilsson
- Science for Life Laboratory, Department of Applied Physics, Royal Institute of Technology, Solna, Sweden
| | - Lena Scott
- Science for Life Laboratory, Department of Women's and Children's Health, Karolinska Institutet, Solna, Sweden
| | - Hans Blom
- Science for Life Laboratory, Department of Applied Physics, Royal Institute of Technology, Solna, Sweden
| | - Hjalmar Brismar
- Science for Life Laboratory, Department of Applied Physics, Royal Institute of Technology, Solna, Sweden.
- Science for Life Laboratory, Department of Women's and Children's Health, Karolinska Institutet, Solna, Sweden.
| | - Anita Aperia
- Science for Life Laboratory, Department of Women's and Children's Health, Karolinska Institutet, Solna, Sweden
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24
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Bredow M, Monaghan J. Differential regulation of the calcium-dependent protein kinase CPK28 by site-specific modification. Plant Physiol 2021; 186:1358-1361. [PMID: 34624107 PMCID: PMC8260116 DOI: 10.1093/plphys/kiab216] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 05/05/2021] [Indexed: 05/04/2023]
Abstract
A protein kinase with roles in immune homeostasis and stem elongation is regulated by site-specific phosphorylation.
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Affiliation(s)
- Melissa Bredow
- Department of Biology, Queen’s University, Kingston ON, K7L 3N6
- Present address: Department of Plant Pathology and Microbiology, Iowa State University, Ames Iowa, 50011, USA
| | - Jacqueline Monaghan
- Department of Biology, Queen’s University, Kingston ON, K7L 3N6
- Author for communication:
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25
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Chen M, Ni L, Chen J, Sun M, Qin C, Zhang G, Zhang A, Jiang M. Rice calcium/calmodulin-dependent protein kinase directly phosphorylates a mitogen-activated protein kinase kinase to regulate abscisic acid responses. Plant Cell 2021; 33:1790-1812. [PMID: 33630095 PMCID: PMC8254507 DOI: 10.1093/plcell/koab071] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 02/15/2021] [Indexed: 05/05/2023]
Abstract
Calcium (Ca2+)/calmodulin (CaM)-dependent protein kinase (CCaMK) is an important positive regulator of abscisic acid (ABA) and abiotic stress signaling in plants and is believed to act upstream of mitogen-activated protein kinase (MAPK) in ABA signaling. However, it is unclear how CCaMK activates MAPK in ABA signaling. Here, we show that OsDMI3, a rice (Oryza sativa) CCaMK, directly interacts with and phosphorylates OsMKK1, a MAPK kinase (MKK) in rice, in vitro and in vivo. OsDMI3 was found to directly phosphorylate Thr-25 in the N-terminus of OsMKK1, and this Thr-25 phosphorylation is OsDMI3-specific in ABA signaling. The activation of OsMKK1 and its downstream kinase OsMPK1 is dependent on Thr-25 phosphorylation of OsMKK1 in ABA signaling. Moreover, ABA treatment induces phosphorylation in the activation loop of OsMKK1, and the two phosphorylations, in the N-terminus and in the activation loop, are independent. Further analyses revealed that OsDMI3-mediated phosphorylation of OsMKK1 positively regulates ABA responses in seed germination, root growth, and tolerance to both water stress and oxidative stress. Our results indicate that OsMKK1 is a direct target of OsDMI3, and OsDMI3-mediated phosphorylation of OsMKK1 plays an important role in activating the MAPK cascade and ABA signaling.
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Affiliation(s)
- Min Chen
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Lan Ni
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Jing Chen
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Manman Sun
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Caihua Qin
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Gang Zhang
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Aying Zhang
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Mingyi Jiang
- College of Life Sciences, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
- Southern Regional Collaborative Innovation Center for Grain and Oil Crops in China, Hunan Agricultural University, Changsha 410128, China
- Author for correspondence:
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26
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Liu L, Xiang Y, Yan J, Di P, Li J, Sun X, Han G, Ni L, Jiang M, Yuan J, Zhang A. BRASSINOSTEROID-SIGNALING KINASE 1 phosphorylating CALCIUM/CALMODULIN-DEPENDENT PROTEIN KINASE functions in drought tolerance in maize. New Phytol 2021; 231:695-712. [PMID: 33864702 DOI: 10.1111/nph.17403] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 04/06/2021] [Indexed: 05/08/2023]
Abstract
Drought stress seriously limits crop productivity. Although studies have been carried out, it is still largely unknown how plants respond to drought stress. Here we find that drought treatment can enhance the phosphorylation activity of brassinosteroid-signaling kinase 1 (ZmBSK1) in maize (Zea mays). Our genetic studies reveal that ZmBSK1 positively affects drought tolerance in maize plants. ZmBSK1 localizes in plasma membrane, interacts with calcium/calmodulin (Ca2+ /CaM)-dependent protein kinase (ZmCCaMK), and phosphorylates ZmCCaMK. Ser-67 is a crucial phosphorylation site of ZmCCaMK by ZmBSK1. Drought stress enhances not only the interaction between ZmBSK1 and ZmCCaMK but also the phosphorylation of Ser-67 in ZmCCaMK by ZmBSK1. Furthermore, Ser-67 phosphorylation in ZmCCaMK regulates its Ca2+ /CaM binding, autophosphorylation and transphosphorylation activity, and positively affects its function in drought tolerance in maize. Our results reveal an important role for ZmBSK1 in drought tolerance and suggest a direct regulatory mode of ZmBSK1 phosphorylating ZmCCaMK.
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Affiliation(s)
- Lei Liu
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
- Institute of Food Crops, Provincial Key Laboratory of Agrobiology, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
| | - Yang Xiang
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jingwei Yan
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095, China
| | - Pengcheng Di
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jing Li
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xiujuan Sun
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Gaoqiang Han
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Lan Ni
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095, China
| | - Mingyi Jiang
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jianhua Yuan
- Institute of Food Crops, Provincial Key Laboratory of Agrobiology, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
| | - Aying Zhang
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095, China
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Liu Q, Zhang W, Luo L, Han K, Liu R, Wei S, Guo X. Long noncoding RNA TUG1 regulates the progression of colorectal cancer through miR-542-3p/TRIB2 axis and Wnt/β-catenin pathway. Diagn Pathol 2021; 16:47. [PMID: 34030715 PMCID: PMC8142490 DOI: 10.1186/s13000-021-01101-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 04/22/2021] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Colorectal cancer (CRC) is one of the third normal malignancy worldwide. Taurine-upregulated gene 1 (TUG1), a member of long noncoding RNAs (lncRNAs), has been reported to be involved in various cancers. However, the mechanism underlying TUG1 in the progression of CRC remains unclear. METHODS The expression of TUG1, microRNA-542-3p (miR-542-3p), and tribbles homolog 2 (TRIB2) in CRC tissues and cells (LoVo and HCT116) were detected by quantitative real-time PCR (qRT-PCR). Methyl thiazolyl tetrazolium (MTT), transwell and flow cytometry assays were employed to evaluate the effects of TUG1 in CRC cells. The interaction between miR-542-3p and TUG1 or TRIB2 were verified by dual-luciferase reporter assay. A xenograft tumor model in nude mice was established to investigate the biological role of TUG1 in CRC in vivo. RESULTS TUG1 was increased in CRC tissues and cells (LoVo and HCT116) in contrast with adjacent normal tissues and normal intestinal mucous cells (CCC-HIE-2). Downregulation of TUG1 or TRIB2 suppressed the proliferation, migration, invasion, and induced apoptosis in CRC cells. And knockdown of TUG1 repressed tumor growth in vivo. Besides, overexpression of TRIB2 reversed the effects of TUG1 depletion on the progression of CRC. Meanwhile, TUG1 interacted with miR-542-3p and TRIB2 was a target of miR-542-3p. Furthermore, miR-542-3p knockdown or TRIB2 overexpression partly reversed the suppression effect of TUG1 depletion on the Wnt/β-catenin pathway. CONCLUSIONS TUG1 served as a tumor promoter, impeded the progression of CRC by miR-542-3p/TRIB2 axis to inactivate of Wnt/β-catenin pathway, which providing a novel target for CRC treatment.
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Affiliation(s)
- Quanlin Liu
- Department of Colorectal Surgery, Zhengzhou Anorectal Hospital, No. 51, Longhai East Road, 450004, Zhengzhou, China.
| | - Wei Zhang
- Department of Colorectal Surgery, Zhengzhou Anorectal Hospital, No. 51, Longhai East Road, 450004, Zhengzhou, China
| | - Linshan Luo
- Department of Colorectal Surgery, Zhengzhou Anorectal Hospital, No. 51, Longhai East Road, 450004, Zhengzhou, China
| | - Keshun Han
- Department of Constipation, Zhengzhou Anorectal Hospital, Zhengzhou, China
| | - Ruitao Liu
- Department of Large Intestine, Zhengzhou Anorectal Hospital, Zhengzhou, China
| | - Shue Wei
- Department of Large Intestine, Zhengzhou Anorectal Hospital, Zhengzhou, China
| | - Xiaoran Guo
- Department of Colorectal Surgery, Zhengzhou Anorectal Hospital, No. 51, Longhai East Road, 450004, Zhengzhou, China
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Montiel J, Reid D, Grønbæk TH, Benfeldt CM, James EK, Ott T, Ditengou FA, Nadzieja M, Kelly S, Stougaard J. Distinct signaling routes mediate intercellular and intracellular rhizobial infection in Lotus japonicus. Plant Physiol 2021; 185:1131-1147. [PMID: 33793909 PMCID: PMC8133683 DOI: 10.1093/plphys/kiaa049] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 11/18/2020] [Indexed: 05/07/2023]
Abstract
Rhizobial infection of legume roots during the development of nitrogen-fixing root nodules can occur intracellularly, through plant-derived infection threads traversing cells, or intercellularly, via bacterial entry between epidermal plant cells. Although it is estimated that around 25% of all legume genera are intercellularly infected, the pathways and mechanisms supporting this process have remained virtually unexplored due to a lack of genetically amenable legumes that exhibit this form of infection. In this study, we report that the model legume Lotus japonicus is infected intercellularly by the IRBG74 strain, recently proposed to belong to the Agrobacterium clade of the Rhizobiaceae. We demonstrate that the resources available for L. japonicus enable insight into the genetic requirements and fine-tuning of the pathway governing intercellular infection in this species. Inoculation of L. japonicus mutants shows that Ethylene-responsive factor required for nodulation 1 (Ern1) and Leu-rich Repeat Receptor-Like Kinase (RinRK1) are dispensable for intercellular infection in contrast to intracellular infection. Other symbiotic genes, including nod factor receptor 5 (NFR5), symbiosis receptor-like kinase (SymRK), Ca2+/calmodulin dependent kinase (CCaMK), exopolysaccharide receptor 3 (Epr3), Cyclops, nodule inception (Nin), nodulation signaling pathway 1 (Nsp1), nodulation signaling pathway 2 (Nsp2), cystathionine-β-synthase (Cbs), and Vapyrin are equally important for both entry modes. Comparative RNAseq analysis of roots inoculated with IRBG74 revealed a distinctive transcriptome response compared with intracellular colonization. In particular, several cytokinin-related genes were differentially regulated. Corroborating this observation, cyp735A and ipt4 cytokinin biosynthesis mutants were significantly affected in their nodulation with IRBG74, whereas lhk1 cytokinin receptor mutants formed no nodules. These results indicate a differential requirement for cytokinin signaling during intercellular rhizobial entry and highlight distinct modalities of inter- and intracellular infection mechanisms in L. japonicus.
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Affiliation(s)
- Jesús Montiel
- Department of Molecular Biology and Genetics, Aarhus University, DK-8000, Aarhus C, Denmark
| | - Dugald Reid
- Department of Molecular Biology and Genetics, Aarhus University, DK-8000, Aarhus C, Denmark
| | - Thomas H Grønbæk
- Department of Molecular Biology and Genetics, Aarhus University, DK-8000, Aarhus C, Denmark
| | - Caroline M Benfeldt
- Department of Molecular Biology and Genetics, Aarhus University, DK-8000, Aarhus C, Denmark
| | - Euan K James
- The James Hutton Institute, Invergowrie, Dundee, DD2 5DA, UK
| | - Thomas Ott
- Cell Biology, Faculty of Biology, University of Freiburg, 79104 Freiburg, Germany
| | - Franck A Ditengou
- Cell Biology, Faculty of Biology, University of Freiburg, 79104 Freiburg, Germany
| | - Marcin Nadzieja
- Department of Molecular Biology and Genetics, Aarhus University, DK-8000, Aarhus C, Denmark
| | - Simon Kelly
- Department of Molecular Biology and Genetics, Aarhus University, DK-8000, Aarhus C, Denmark
| | - Jens Stougaard
- Department of Molecular Biology and Genetics, Aarhus University, DK-8000, Aarhus C, Denmark
- Author for ommunication:
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29
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Ronzier E, Corratgé-Faillie C, Sanchez F, Brière C, Xiong TC. Ca 2+-Dependent Protein Kinase 6 Enhances KAT2 Shaker Channel Activity in Arabidopsis thaliana. Int J Mol Sci 2021; 22:ijms22041596. [PMID: 33562460 PMCID: PMC7914964 DOI: 10.3390/ijms22041596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/25/2021] [Accepted: 02/01/2021] [Indexed: 11/16/2022] Open
Abstract
Post-translational regulations of Shaker-like voltage-gated K+ channels were reported to be essential for rapid responses to environmental stresses in plants. In particular, it has been shown that calcium-dependent protein kinases (CPKs) regulate Shaker channels in plants. Here, the focus was on KAT2, a Shaker channel cloned in the model plant Arabidopsis thaliana, where is it expressed namely in the vascular tissues of leaves. After co-expression of KAT2 with AtCPK6 in Xenopuslaevis oocytes, voltage-clamp recordings demonstrated that AtCPK6 stimulates the activity of KAT2 in a calcium-dependent manner. A physical interaction between these two proteins has also been shown by Förster resonance energy transfer by fluorescence lifetime imaging (FRET-FLIM). Peptide array assays support that AtCPK6 phosphorylates KAT2 at several positions, also in a calcium-dependent manner. Finally, K+ fluorescence imaging in planta suggests that K+ distribution is impaired in kat2 knock-out mutant leaves. We propose that the AtCPK6/KAT2 couple plays a role in the homeostasis of K+ distribution in leaves.
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Affiliation(s)
- Elsa Ronzier
- BPMP, University Montpellier, CNRS, INRAE, Institut Agro, 34060 Montpellier, France; (E.R.); (C.C.-F.); (F.S.)
| | - Claire Corratgé-Faillie
- BPMP, University Montpellier, CNRS, INRAE, Institut Agro, 34060 Montpellier, France; (E.R.); (C.C.-F.); (F.S.)
| | - Frédéric Sanchez
- BPMP, University Montpellier, CNRS, INRAE, Institut Agro, 34060 Montpellier, France; (E.R.); (C.C.-F.); (F.S.)
- BIOM 7232, Avenue Pierre Fabre, 66650 Banyuls-Sur-Mer, France
| | - Christian Brière
- Laboratoire de Recherche en Sciences Végétales, UMR CNRS/UPS 5546, 24 chemin de Borde Rouge, 31326 Castanet-Tolosan, France;
| | - Tou Cheu Xiong
- BPMP, University Montpellier, CNRS, INRAE, Institut Agro, 34060 Montpellier, France; (E.R.); (C.C.-F.); (F.S.)
- Correspondence:
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30
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Warma A, Lussier JG, Ndiaye K. Tribbles Pseudokinase 2 (TRIB2) Regulates Expression of Binding Partners in Bovine Granulosa Cells. Int J Mol Sci 2021; 22:ijms22041533. [PMID: 33546420 PMCID: PMC7913596 DOI: 10.3390/ijms22041533] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 01/28/2021] [Accepted: 01/29/2021] [Indexed: 12/15/2022] Open
Abstract
Members of the Tribbles (TRIB) family of pseudokinases are critical components of intracellular signal transduction pathways in physiological and pathological processes. TRIBs, including TRIB2, have been previously shown as signaling mediators and scaffolding proteins regulating numerous cellular events such as proliferation, differentiation and cell death through protein stability and activity. However, the signaling network associated with TRIB2 and its binding partners in granulosa cells during ovarian follicular development is not fully defined. We previously reported that TRIB2 is differentially expressed in growing dominant follicles while downregulated in ovulatory follicles following the luteinizing hormone (LH) surge or human chorionic gonadotropin (hCG) injection. In the present study, we used the yeast two-hybrid screening system and in vitro coimmunoprecipitation assays to identify and confirm TRIB2 interactions in granulosa cells (GCs) of dominant ovarian follicles (DFs), which yielded individual candidate binding partners including calmodulin 1 (CALM1), inhibin subunit beta A (INHBA), inositol polyphosphate phosphatase-like 1 (INPPL1), 5'-nucleotidase ecto (NT5E), stearoyl-CoA desaturase (SCD), succinate dehydrogenase complex iron sulfur subunit B (SDHB) and Ras-associated protein 14 (RAB14). Further analyses showed that all TRIB2 binding partners are expressed in GCs of dominant follicles but are differentially regulated throughout the different stages of follicular development. CRISPR/Cas9-driven inhibition along with pQE-driven overexpression of TRIB2 showed that TRIB2 differently regulates expression of binding partners, which reveals the importance of TRIB2 in the control of gene expression linked to various biological processes such as proliferation, differentiation, cell migration, apoptosis, calcium signaling and metabolism. These data provide a larger view of potential TRIB2-regulated signal transduction pathways in GCs and provide strong evidence that TRIB2 may act as a regulator of target genes during ovarian follicular development.
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31
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Sun X, Cai X, Yin K, Gu L, Shen Y, Hu B, Wang Y, Chen Y, Zhu Y, Jia B, Sun M. Wild soybean SNARE proteins BET1s mediate the subcellular localization of the cytoplasmic receptor-like kinases CRCK1s to modulate salt stress responses. Plant J 2021; 105:771-785. [PMID: 33160290 DOI: 10.1111/tpj.15072] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 10/05/2020] [Accepted: 10/21/2020] [Indexed: 05/27/2023]
Abstract
Plants have evolved numerous receptor-like kinases (RLKs) that modulate environmental stress responses. However, little is known regarding soybean (Glycine max) RLKs. We have previously identified that Glycine soja Ca2+ /CAM-binding RLK (GsCBRLK) is involved in salt tolerance. Here, we report that soluble NSF attachment protein receptor proteins BET1s mediate subcellular localization of calmodulin-binding receptor-like cytoplasmic kinases CRCK1s to modulate salt stress responses. Direct interaction between GsCBRLK and GsBET11a was initially identified via yeast two-hybrid and bimolecular fluorescence complementation assays. Further analysis demonstrated conserved interaction between BET1s and CRCK1s. GsCBRLK interacted with all BET1 proteins in wild soybean (Glycine soja) and Arabidopsis, and GsBET11a strongly associated with GsCRCK1a-1d, but slightly with AtCRCK1. In addition, GsBET11a interacted with GsCBRLK via its C-terminal transmembrane domain (TMD), where the entire TMD, not the sequence, was critical for the interaction. Moreover, the N-terminal variable domain (VD) of GsCBRLK was responsible for interacting with GsBET11a, and the intensity of interaction between GsCBRLK/AtCRCK1 and GsBET11a was dependent on VD. Furthermore, GsBET11a was able to mediate the GsCBRLK subcellular localization via direct interaction with VD. Additionally, knockout of AtBET11 or AtBET12 individually did not alter GsCBRLK localization, while GsBET11a expression caused partial internalization of GsCBRLK from the plasma membrane (PM). We further suggest the necessity of GsCBRLK VD for its PM localization via N-terminal truncation assays. Finally, GsBET11a was shown to confer enhanced salt stress tolerance when overexpressed in Arabidopsis and soybean. These results revealed the conserved and direct interaction between BET1s and CRCK1s, and suggested their involvement in salt stress responses.
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Affiliation(s)
- Xiaoli Sun
- Crop Stress Molecular Biology Laboratory, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
| | - Xiaoxi Cai
- Crop Stress Molecular Biology Laboratory, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
| | - Kuide Yin
- Crop Stress Molecular Biology Laboratory, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
| | - Liwei Gu
- Crop Stress Molecular Biology Laboratory, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
| | - Yang Shen
- Crop Stress Molecular Biology Laboratory, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
| | - Bingshuang Hu
- Crop Stress Molecular Biology Laboratory, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
| | - Yan Wang
- Crop Stress Molecular Biology Laboratory, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
| | - Yue Chen
- Crop Stress Molecular Biology Laboratory, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
| | - Yanming Zhu
- Crop Stress Molecular Biology Laboratory, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
| | - Bowei Jia
- Crop Stress Molecular Biology Laboratory, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
| | - Mingzhe Sun
- Crop Stress Molecular Biology Laboratory, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
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32
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Rackley B, Seong CS, Kiely E, Parker RE, Rupji M, Dwivedi B, Heddleston JM, Giang W, Anthony N, Chew TL, Gilbert-Ross M. The level of oncogenic Ras determines the malignant transformation of Lkb1 mutant tissue in vivo. Commun Biol 2021; 4:142. [PMID: 33514834 PMCID: PMC7846793 DOI: 10.1038/s42003-021-01663-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 01/06/2021] [Indexed: 01/30/2023] Open
Abstract
The genetic and metabolic heterogeneity of RAS-driven cancers has confounded therapeutic strategies in the clinic. To address this, rapid and genetically tractable animal models are needed that recapitulate the heterogeneity of RAS-driven cancers in vivo. Here, we generate a Drosophila melanogaster model of Ras/Lkb1 mutant carcinoma. We show that low-level expression of oncogenic Ras (RasLow) promotes the survival of Lkb1 mutant tissue, but results in autonomous cell cycle arrest and non-autonomous overgrowth of wild-type tissue. In contrast, high-level expression of oncogenic Ras (RasHigh) transforms Lkb1 mutant tissue resulting in lethal malignant tumors. Using simultaneous multiview light-sheet microcopy, we have characterized invasion phenotypes of Ras/Lkb1 tumors in living larvae. Our molecular analysis reveals sustained activation of the AMPK pathway in malignant Ras/Lkb1 tumors, and demonstrate the genetic and pharmacologic dependence of these tumors on CaMK-activated Ampk. We further show that LKB1 mutant human lung adenocarcinoma patients with high levels of oncogenic KRAS exhibit worse overall survival and increased AMPK activation. Our results suggest that high levels of oncogenic KRAS is a driving event in the malignant transformation of LKB1 mutant tissue, and uncovers a vulnerability that may be used to target this aggressive genetic subset of RAS-driven tumors.
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Affiliation(s)
- Briana Rackley
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA, USA
- Cancer Biology Graduate Program, Emory University, Atlanta, GA, USA
| | - Chang-Soo Seong
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA, USA
| | - Evan Kiely
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA, USA
- Winship Research Informatics, Winship Cancer Institute of Emory University, Atlanta, GA, USA
| | - Rebecca E Parker
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA, USA
- Cancer Biology Graduate Program, Emory University, Atlanta, GA, USA
| | - Manali Rupji
- Biostatistics Shared Resource, Winship Cancer Institute of Emory University, Atlanta, GA, USA
| | - Bhakti Dwivedi
- Bioinformatics and Systems Biology Shared Resource, Winship Cancer Institute of Emory University, Atlanta, GA, USA
| | - John M Heddleston
- Advanced Imaging Center, Janelia Research Campus, Howard Hughes Medical Institute, Ashburn, VA, USA
| | - William Giang
- Integrated Cellular Imaging Core, Emory University School of Medicine, Emory University, Atlanta, GA, USA
| | - Neil Anthony
- Integrated Cellular Imaging Core, Emory University School of Medicine, Emory University, Atlanta, GA, USA
| | - Teng-Leong Chew
- Advanced Imaging Center, Janelia Research Campus, Howard Hughes Medical Institute, Ashburn, VA, USA
| | - Melissa Gilbert-Ross
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA, USA.
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33
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Blázquez AB, Saiz JC. Potential for Protein Kinase Pharmacological Regulation in Flaviviridae Infections. Int J Mol Sci 2020; 21:E9524. [PMID: 33333737 PMCID: PMC7765220 DOI: 10.3390/ijms21249524] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 12/09/2020] [Accepted: 12/14/2020] [Indexed: 12/12/2022] Open
Abstract
Protein kinases (PKs) are enzymes that catalyze the transfer of the terminal phosphate group from ATP to a protein acceptor, mainly to serine, threonine, and tyrosine residues. PK catalyzed phosphorylation is critical to the regulation of cellular signaling pathways that affect crucial cell processes, such as growth, differentiation, and metabolism. PKs represent attractive targets for drugs against a wide spectrum of diseases, including viral infections. Two different approaches are being applied in the search for antivirals: compounds directed against viral targets (direct-acting antivirals, DAAs), or against cellular components essential for the viral life cycle (host-directed antivirals, HDAs). One of the main drawbacks of DAAs is the rapid emergence of drug-resistant viruses. In contrast, HDAs present a higher barrier to resistance development. This work reviews the use of chemicals that target cellular PKs as HDAs against virus of the Flaviviridae family (Flavivirus and Hepacivirus), thus being potentially valuable therapeutic targets in the control of these pathogens.
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Affiliation(s)
- Ana-Belén Blázquez
- Department of Biotechnology, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 28040 Madrid, Spain;
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34
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Liu L, Han T, Liu W, Han G, Di P, Yu X, Yan J, Zhang A. Thr420 and Ser454 of ZmCCaMK play a crucial role in brassinosteroid-induced antioxidant defense in maize. Biochem Biophys Res Commun 2020; 525:537-542. [PMID: 32113680 DOI: 10.1016/j.bbrc.2020.02.078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Accepted: 02/12/2020] [Indexed: 12/15/2022]
Abstract
Calcium/calmodulin-dependent protein kinase (CCaMK) has been shown to play important roles in brassinosteroid (BR)-induced antioxidant defense and enhancing the tolerance of plants to drought stress. The autophosphorylation of CCaMK is a key step for the activation of CCaMK, thus promoting substrate phosphorylation. However, how CCaMK autophosphorylation function in BR-induced antioxidant defense is not known yet. Here, seven potential autophosphorylation sites of ZmCCaMK were identified using mass spectroscopy (liquid chromatography-tandem mass spectrometry [LC-MS/MS]) analysis. The transient gene expression analysis in maize protoplasts showed that Thr420 and Ser454 of ZmCCaMK were important for BR-induced antioxidant defense. Furthermore, Thr420 and Ser454 of ZmCCaMK were crucial for improving drought tolerance and alleviating drought induced oxidative damage of plants via overexpressing various mutant versions of ZmCCaMK in tobacco (Nicotiana tabacum). Mutations of Thr420 and Ser454 in ZmCCaMK substantially blocked the autophosphorylation and substrate phosphorylation of ZmCCaMK in vitro. Taken together, our results demonstrate that Thr420 and Ser454 of ZmCCaMK are crucial for BR-induced antioxidant defense and drought tolerance through modulating the autophosphorylation and substrate phosphorylation activities of ZmCCaMK.
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Affiliation(s)
- Lei Liu
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Tong Han
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Weijuan Liu
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Gaoqiang Han
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Pengcheng Di
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Xiaoyun Yu
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Jingwei Yan
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Aying Zhang
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China; National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China.
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Guerra T, Schilling S, Hake K, Gorzolka K, Sylvester FP, Conrads B, Westermann B, Romeis T. Calcium-dependent protein kinase 5 links calcium signaling with N-hydroxy-l-pipecolic acid- and SARD1-dependent immune memory in systemic acquired resistance. New Phytol 2020; 225:310-325. [PMID: 31469917 DOI: 10.1111/nph.16147] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 08/14/2019] [Indexed: 05/20/2023]
Abstract
Systemic acquired resistance (SAR) prepares infected plants for faster and stronger defense activation upon subsequent attacks. SAR requires an information relay from primary infection to distal tissue and the initiation and maintenance of a self-maintaining phytohormone salicylic acid (SA)-defense loop. In spatial and temporal resolution, we show that calcium-dependent protein kinase CPK5 contributes to immunity and SAR. In local basal resistance, CPK5 functions upstream of SA synthesis, perception, and signaling. In systemic tissue, CPK5 signaling leads to accumulation of SAR-inducing metabolite N-hydroxy-L-pipecolic acid (NHP) and SAR marker genes, including Systemic Acquired Resistance Deficient 1 (SARD1) Plants of increased CPK5, but not CPK6, signaling display an 'enhanced SAR' phenotype towards a secondary bacterial infection. In the sard1-1 background, CPK5-mediated basal resistance is still mounted, but NHP concentration is reduced and enhanced SAR is lost. The biochemical analysis estimated CPK5 half maximal kinase activity for calcium, K50 [Ca2+ ], to be c. 100 nM, close to the cytoplasmic resting level. This low threshold uniquely qualifies CPK5 to decode subtle changes in calcium, a prerequisite to signal relay and onset and maintenance of priming at later time points in distal tissue. Our data explain why CPK5 functions as a hub in basal and systemic plant immunity.
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Affiliation(s)
- Tiziana Guerra
- Department of Plant Biochemistry, Dahlem Centre of Plant Sciences, Institute for Biology, Freie Universität Berlin, Berlin, 14195, Germany
| | - Silke Schilling
- Department of Plant Biochemistry, Dahlem Centre of Plant Sciences, Institute for Biology, Freie Universität Berlin, Berlin, 14195, Germany
| | - Katharina Hake
- Department of Plant Biochemistry, Dahlem Centre of Plant Sciences, Institute for Biology, Freie Universität Berlin, Berlin, 14195, Germany
| | - Karin Gorzolka
- Leibniz Institute of Plant Biochemistry, Halle (Saale), 06120, Germany
| | - Fabian-Philipp Sylvester
- Department of Plant Biochemistry, Dahlem Centre of Plant Sciences, Institute for Biology, Freie Universität Berlin, Berlin, 14195, Germany
| | - Benjamin Conrads
- Department of Plant Biochemistry, Dahlem Centre of Plant Sciences, Institute for Biology, Freie Universität Berlin, Berlin, 14195, Germany
| | | | - Tina Romeis
- Department of Plant Biochemistry, Dahlem Centre of Plant Sciences, Institute for Biology, Freie Universität Berlin, Berlin, 14195, Germany
- Leibniz Institute of Plant Biochemistry, Halle (Saale), 06120, Germany
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Zhang H, Liu D, Yang B, Liu WZ, Mu B, Song H, Chen B, Li Y, Ren D, Deng H, Jiang YQ. Arabidopsis CPK6 positively regulates ABA signaling and drought tolerance through phosphorylating ABA-responsive element-binding factors. J Exp Bot 2020; 71:188-203. [PMID: 31563949 DOI: 10.1093/jxb/erz432] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 09/11/2019] [Indexed: 06/10/2023]
Abstract
Abscisic acid (ABA) regulates numerous developmental processes and drought tolerance in plants. Calcium-dependent protein kinases (CPKs) are important Ca2+ sensors playing crucial roles in plant growth and development as well as responses to stresses. However, the molecular mechanisms of many CPKs in ABA signaling and drought tolerance remain largely unknown. Here we combined protein interaction studies, and biochemical and genetic approaches to identify and characterize substrates that were phosphorylated by CPK6 and elucidated the mechanism that underlines the role of CPK6 in ABA signaling and drought tolerance. The expression of CPK6 is induced by ABA and dehydration. Two cpk6 T-DNA insertion mutants are insensitive to ABA during seed germination and root elongation of seedlings; in contrast, overexpression of CPK6 showed the opposite phenotype. Moreover, CPK6-overexpressing lines showed enhanced drought tolerance. CPK6 interacts with and phosphorylates a subset of core ABA signaling-related transcription factors, ABA-responsive element-binding factors (ABFs/AREBs), and enhances their transcriptional activities. The phosphorylation sites in ABF3 and ABI5 were also identified through MS and mutational analyses. Taken together, we present evidence that CPK6 mediates ABA signaling and drought tolerance through phosphorylating ABFs/AREBs. This work thus uncovers a rather conserved mechanism of calcium-dependent Ser/Thr kinases in ABA signaling.
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Affiliation(s)
- Hanfeng Zhang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Sciences, Northwest A & F University, Yangling, Shaanxi, China
| | - Daoyin Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Sciences, Northwest A & F University, Yangling, Shaanxi, China
| | - Bo Yang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Sciences, Northwest A & F University, Yangling, Shaanxi, China
| | - Wu-Zhen Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Sciences, Northwest A & F University, Yangling, Shaanxi, China
| | - Bangbang Mu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Sciences, Northwest A & F University, Yangling, Shaanxi, China
| | - Huaxin Song
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Sciences, Northwest A & F University, Yangling, Shaanxi, China
| | - Bingyou Chen
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Sciences, Northwest A & F University, Yangling, Shaanxi, China
| | - Yuan Li
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Dongtao Ren
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Hanqing Deng
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Sciences, Northwest A & F University, Yangling, Shaanxi, China
| | - Yuan-Qing Jiang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Sciences, Northwest A & F University, Yangling, Shaanxi, China
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Dell'Aglio E, Giustini C, Kraut A, Couté Y, Costa A, Decros G, Gibon Y, Mazars C, Matringe M, Finazzi G, Curien G. Identification of the Arabidopsis Calmodulin-Dependent NAD + Kinase That Sustains the Elicitor-Induced Oxidative Burst. Plant Physiol 2019; 181:1449-1458. [PMID: 31554701 PMCID: PMC6878019 DOI: 10.1104/pp.19.00912] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 09/14/2019] [Indexed: 05/07/2023]
Abstract
NADP(H) is an essential cofactor of multiple metabolic processes in all living organisms, and in plants, NADP(H) is required as the substrate of Ca2+-dependent NADPH oxidases, which catalyze a reactive oxygen species burst in response to various stimuli. While NADP+ production in plants has long been known to involve a calmodulin (CaM)/Ca2+-dependent NAD+ kinase, the nature of the enzyme catalyzing this activity has remained enigmatic, as has its role in plant physiology. Here, we used proteomic, biochemical, molecular, and in vivo analyses to identify an Arabidopsis (Arabidopsis thaliana) protein that catalyzes NADP+ production exclusively in the presence of CaM/Ca2+ This enzyme, which we named NAD kinase-CaM dependent (NADKc), has a CaM-binding peptide located in its N-terminal region and displays peculiar biochemical properties as well as different domain organization compared with known plant NAD+ kinases. In response to a pathogen elicitor, the activity of NADKc, which is associated with the mitochondrial periphery, contributes to an increase in the cellular NADP+ concentration and to the amplification of the elicitor-induced oxidative burst. Based on a phylogenetic analysis and enzymatic assays, we propose that the CaM/Ca2+-dependent NAD+ kinase activity found in photosynthetic organisms is carried out by NADKc-related proteins. Thus, NADKc represents the missing link between Ca2+ signaling, metabolism, and the oxidative burst.
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Affiliation(s)
- Elisa Dell'Aglio
- Université Grenoble Alpes, Centre National de la Recherche Scientifique (CNRS), Commissariat à l'Énergie Atomique et aux Énergies Alternatives (CEA), Institut National de la Recherche Agromique (INRA), Interdisciplinary Research Institute of Grenoble - Cell & Plant Physiology Laboratory (IRIG-LPCV), 38000 Grenoble, France
- Department of Botany and Plant Biology, University of Geneva, 1211 Geneva, Switzerland
| | - Cécile Giustini
- Université Grenoble Alpes, Centre National de la Recherche Scientifique (CNRS), Commissariat à l'Énergie Atomique et aux Énergies Alternatives (CEA), Institut National de la Recherche Agromique (INRA), Interdisciplinary Research Institute of Grenoble - Cell & Plant Physiology Laboratory (IRIG-LPCV), 38000 Grenoble, France
| | - Alexandra Kraut
- Université Grenoble Alpes, CEA, Institut National de la Santé et de la Recherche Médicale (INSERM), Interdisciplinary Research Institute of Grenoble - Exploring the DYnamics of Proteomes (IRIG-EDyP), 38000 Grenoble, France
| | - Yohann Couté
- Université Grenoble Alpes, CEA, Institut National de la Santé et de la Recherche Médicale (INSERM), Interdisciplinary Research Institute of Grenoble - Exploring the DYnamics of Proteomes (IRIG-EDyP), 38000 Grenoble, France
| | - Alex Costa
- Department of Biosciences, University of Milan, 20133 Milan, Italy
| | - Guillaume Decros
- Unité Mixte de Recherche 1332 Biologie du Fruit et Pathologie (UMR1332 BFP), INRA, Université Bordeaux, 33882 Villenave d'Ornon, France
| | - Yves Gibon
- Unité Mixte de Recherche 1332 Biologie du Fruit et Pathologie (UMR1332 BFP), INRA, Université Bordeaux, 33882 Villenave d'Ornon, France
- MetaboHUB, Bordeaux, 33882 Villenave d'Ornon, France
| | - Christian Mazars
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, Université Paul Sabatier (UPS), BP 42617, 31326 Castanet-Tolosan, France
| | - Michel Matringe
- Université Grenoble Alpes, Centre National de la Recherche Scientifique (CNRS), Commissariat à l'Énergie Atomique et aux Énergies Alternatives (CEA), Institut National de la Recherche Agromique (INRA), Interdisciplinary Research Institute of Grenoble - Cell & Plant Physiology Laboratory (IRIG-LPCV), 38000 Grenoble, France
| | - Giovanni Finazzi
- Université Grenoble Alpes, Centre National de la Recherche Scientifique (CNRS), Commissariat à l'Énergie Atomique et aux Énergies Alternatives (CEA), Institut National de la Recherche Agromique (INRA), Interdisciplinary Research Institute of Grenoble - Cell & Plant Physiology Laboratory (IRIG-LPCV), 38000 Grenoble, France
| | - Gilles Curien
- Université Grenoble Alpes, Centre National de la Recherche Scientifique (CNRS), Commissariat à l'Énergie Atomique et aux Énergies Alternatives (CEA), Institut National de la Recherche Agromique (INRA), Interdisciplinary Research Institute of Grenoble - Cell & Plant Physiology Laboratory (IRIG-LPCV), 38000 Grenoble, France
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Shimoda Y, Imaizumi-Anraku H, Hayashi M. Kinase activity-dependent stability of calcium/calmodulin-dependent protein kinase of Lotus japonicus. Planta 2019; 250:1773-1779. [PMID: 31440828 DOI: 10.1007/s00425-019-03264-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 08/17/2019] [Indexed: 06/10/2023]
Abstract
Accumulation of calcium/calmodulin-dependent protein kinase (CCaMK) in root cell nucleus depends on its kinase activity but not on nuclear symbiotic components crucial for nodulation. Plant calcium/calmodulin-dependent protein kinase (CCaMK) is a key regulator of symbioses with rhizobia and arbuscular mycorrhizal fungi as it decodes symbiotic calcium signals induced by microsymbionts. CCaMK is expressed mainly in root cells and localizes to the nucleus, where microsymbiont-triggered calcium oscillations occur. The molecular mechanisms that control CCaMK localization are unknown. Here, we analyzed the expression and subcellular localization of mutated CCaMK in the roots of Lotus japonicus and found a clear relation between CCaMK kinase activity and its stability. Kinase-defective CCaMK variants showed lower protein levels than the variants with kinase activity. The levels of transcripts driven by the CaMV 35S promoter were similar among the variants, indicating that stability of CCaMK is regulated post-translationally. We also demonstrated that CCaMK localized to the root cell nucleus in several symbiotic mutants, including cyclops, an interaction partner and phosphorylation target of CCaMK. Our results suggest that kinase activity of CCaMK is required not only for the activation of downstream symbiotic components but also for its stability in root cells.
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Affiliation(s)
- Yoshikazu Shimoda
- Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, Tsukuba, Ibaraki, Japan.
| | - Haruko Imaizumi-Anraku
- Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, Tsukuba, Ibaraki, Japan
| | - Makoto Hayashi
- Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, Tsukuba, Ibaraki, Japan
- Plant Symbiosis Research Team, RIKEN Center for Sustainable Resource Science, Yokohama, Kanagawa, Japan
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Cope KR, Bascaules A, Irving TB, Venkateshwaran M, Maeda J, Garcia K, Rush TA, Ma C, Labbé J, Jawdy S, Steigerwald E, Setzke J, Fung E, Schnell KG, Wang Y, Schlief N, Bücking H, Strauss SH, Maillet F, Jargeat P, Bécard G, Puech-Pagès V, Ané JM. The Ectomycorrhizal Fungus Laccaria bicolor Produces Lipochitooligosaccharides and Uses the Common Symbiosis Pathway to Colonize Populus Roots. Plant Cell 2019; 31:2386-2410. [PMID: 31416823 PMCID: PMC6790088 DOI: 10.1105/tpc.18.00676] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 05/17/2019] [Accepted: 08/06/2019] [Indexed: 05/21/2023]
Abstract
Mycorrhizal fungi form mutualistic associations with the roots of most land plants and provide them with mineral nutrients from the soil in exchange for fixed carbon derived from photosynthesis. The common symbiosis pathway (CSP) is a conserved molecular signaling pathway in all plants capable of associating with arbuscular mycorrhizal fungi. It is required not only for arbuscular mycorrhizal symbiosis but also for rhizobia-legume and actinorhizal symbioses. Given its role in such diverse symbiotic associations, we hypothesized that the CSP also plays a role in ectomycorrhizal associations. We showed that the ectomycorrhizal fungus Laccaria bicolor produces an array of lipochitooligosaccharides (LCOs) that can trigger both root hair branching in legumes and, most importantly, calcium spiking in the host plant Populus in a CASTOR/POLLUX-dependent manner. Nonsulfated LCOs enhanced lateral root development in Populus in a calcium/calmodulin-dependent protein kinase (CCaMK)-dependent manner, and sulfated LCOs enhanced the colonization of Populus by L. bicolor Compared with the wild-type Populus, the colonization of CASTOR/POLLUX and CCaMK RNA interference lines by L. bicolor was reduced. Our work demonstrates that similar to other root symbioses, L. bicolor uses the CSP for the full establishment of its mutualistic association with Populus.
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Affiliation(s)
- Kevin R Cope
- Department of Bacteriology, University of Wisconsin, Madison, Wisconsin 53706
- Department of Agronomy, University of Wisconsin, Madison, Wisconsin 53706
| | - Adeline Bascaules
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, 31326, Castanet-Tolosan, France
| | - Thomas B Irving
- Department of Bacteriology, University of Wisconsin, Madison, Wisconsin 53706
- Department of Agronomy, University of Wisconsin, Madison, Wisconsin 53706
| | | | - Junko Maeda
- Department of Bacteriology, University of Wisconsin, Madison, Wisconsin 53706
- Department of Agronomy, University of Wisconsin, Madison, Wisconsin 53706
| | - Kevin Garcia
- Department of Bacteriology, University of Wisconsin, Madison, Wisconsin 53706
- Department of Agronomy, University of Wisconsin, Madison, Wisconsin 53706
| | - Tomás A Rush
- Department of Bacteriology, University of Wisconsin, Madison, Wisconsin 53706
- Department of Agronomy, University of Wisconsin, Madison, Wisconsin 53706
| | - Cathleen Ma
- Department of Forest Ecosystems and Society, Oregon State University, Corvallis, Oregon 97331
| | - Jessy Labbé
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
| | - Sara Jawdy
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
| | - Edward Steigerwald
- Department of Bacteriology, University of Wisconsin, Madison, Wisconsin 53706
| | - Jonathan Setzke
- Department of Bacteriology, University of Wisconsin, Madison, Wisconsin 53706
| | - Emmeline Fung
- Department of Bacteriology, University of Wisconsin, Madison, Wisconsin 53706
- Department of Agronomy, University of Wisconsin, Madison, Wisconsin 53706
| | - Kimberly G Schnell
- Department of Bacteriology, University of Wisconsin, Madison, Wisconsin 53706
- Department of Agronomy, University of Wisconsin, Madison, Wisconsin 53706
| | - Yunqian Wang
- Department of Bacteriology, University of Wisconsin, Madison, Wisconsin 53706
| | - Nathaniel Schlief
- Department of Bacteriology, University of Wisconsin, Madison, Wisconsin 53706
- Department of Agronomy, University of Wisconsin, Madison, Wisconsin 53706
| | - Heike Bücking
- Department of Biology and Microbiology, South Dakota State University, Brookings, South Dakota 57007
| | - Steven H Strauss
- Department of Forest Ecosystems and Society, Oregon State University, Corvallis, Oregon 97331
| | - Fabienne Maillet
- Laboratoire des Interactions Plantes-Microorganismes, Université de Toulouse, INRA, CNRS, 31326, Castanet-Tolosan, France
| | - Patricia Jargeat
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
- Laboratoire Evolution et Diversité Biologique, Université de Toulouse, UPS, CNRS, IRD, 31077 Toulouse, France
| | - Guillaume Bécard
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, 31326, Castanet-Tolosan, France
| | - Virginie Puech-Pagès
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, 31326, Castanet-Tolosan, France
| | - Jean-Michel Ané
- Department of Bacteriology, University of Wisconsin, Madison, Wisconsin 53706
- Department of Agronomy, University of Wisconsin, Madison, Wisconsin 53706
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Chen DH, Liu HP, Li CL. Calcium-dependent protein kinase CPK9 negatively functions in stomatal abscisic acid signaling by regulating ion channel activity in Arabidopsis. Plant Mol Biol 2019; 99:113-122. [PMID: 30536042 DOI: 10.1007/s11103-018-0805-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 11/29/2018] [Indexed: 05/24/2023]
Abstract
In this manuscript, we demonstrated the negative role of CPK9 in stomatal ABA signaling, and both CPK9 and CPK33 for accurate guard cell function was explored via cpk9/cpk33 double mutants' phenotype. Abscisic acid (ABA) can inhibit stomatal opening and promote stomatal closure by regulating ion channel activity in guard cell membranes. As an important second messenger, calcium (Ca2+) is essentially needed in ABA regulation of stomatal movement. Calcium-dependent protein kinases (CDPKs) have been proposed to contribute to central Ca2+ signal transduction in plants. Here, we report the functional characterization of CPK9 in Arabidopsis stomatal ABA signaling. CPK9 had high expression in guard cells and the protein was subcellularly located in the cell membrane. A loss-of-function mutant cpk9 showed a much more sensitive phenotype to ABA regulation of stomatal movement and ion channel activity, while CPK9 overexpression lines had opposite phonotypes. These findings demonstrated the negative role of CPK9 in stomatal ABA signaling. As the closest homolog of CPK33, we also proved that stomatal movement of the cpk9/cpk33 double mutants was more sensitive to ABA than either single mutants. These results revealed the role of CPK9 in guard cells, and the need of both CPK9 and CPK33 for accurate guard cell function.
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Affiliation(s)
- Dong-Hua Chen
- Key Laboratory of Plant Cell Engineering and Germplasm Innovation, Ministry of Education; School of Life Science, Shandong University, Qingdao, 266237, China
| | - Hui-Ping Liu
- Key Laboratory of Plant Cell Engineering and Germplasm Innovation, Ministry of Education; School of Life Science, Shandong University, Qingdao, 266237, China
| | - Chun-Long Li
- College of Life Science, Jiangsu Normal University, Xuzhou, 221116, China.
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Pandey P, Wang M, Baldwin IT, Pandey SP, Groten K. Complex regulation of microRNAs in roots of competitively-grown isogenic Nicotiana attenuata plants with different capacities to interact with arbuscular mycorrhizal fungi. BMC Genomics 2018; 19:937. [PMID: 30558527 PMCID: PMC6296096 DOI: 10.1186/s12864-018-5338-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Accepted: 11/29/2018] [Indexed: 01/31/2023] Open
Abstract
BACKGROUND Nicotiana attenuata is an ecological model plant whose 2.57 Gb genome has recently been sequenced and assembled and for which miRNAs and their genomic locations have been identified. To understand how this plant's miRNAs are reconfigured during plant-arbuscular mycorrhizal fungal (AMF) interactions and whether hostplant calcium- and calmodulin dependent protein kinase (CCaMK) expression which regulates the AMF interaction also modulates miRNAs levels and regulation, we performed a large-scale miRNA analysis of this plant-AMF interaction. RESULTS Next generation sequencing of miRNAs in roots of empty vector (EV) N. attenuata plants and an isogenic line silenced in CCaMK expression (irCCaMK) impaired in AMF-interactions grown under competitive conditions with and without AMF inoculum revealed a total of 149 unique miRNAs: 67 conserved and 82 novel ones. The majority of the miRNAs had a length of 21 nucleotides. MiRNA abundances were highly variable ranging from 400 to more than 25,000 reads per million. The miRNA profile of irCCaMK plants impaired in AMF colonization was distinct from fully AMF-functional EV plants grown in the same pot. Six conserved miRNAs were present in all conditions and accumulated differentially depending on treatment and genotype; five (miR6153, miR403a-3p, miR7122a, miR167-5p and miR482d, but not miR399a-3p) showed the highest accumulation in AMF inoculated EV plants compared to inoculated irCCaMK plants. Furthermore, the accumulation patterns of sequence variants of selected conserved miRNAs showed a very distinct pattern related to AMF colonization - one variant of miR473-5p specifically accumulated in AMF-inoculated plants. Also abundances of miR403a-3p, miR171a-3p and one of the sequence variants of miR172a-3p increased in AMF-inoculated EV compared to inoculated irCCaMK plants and to non-inoculated EV plants, while miR399a-3p was most strongly enriched in AMF inoculated irCCaMK plants grown in competition with EV. The analysis of putative targets of selected miRNAs revealed an involvement in P starvation (miR399), phytohormone signaling (Nat-R-PN59, miR172, miR393) and defense (e.g. miR482, miR8667, Nat-R-PN-47). CONCLUSIONS Our study demonstrates (1) a large-scale reprograming of miRNAs induced by AMF colonization and (2) that the impaired AMF signaling due to CCaMK silencing and the resulting reduced competitive ability of irCCaMK plants play a role in modulating signal-dependent miRNA accumulation.
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Affiliation(s)
- Priyanka Pandey
- National Institute of Biomedical Genomics, Kalyani, West Bengal India
| | - Ming Wang
- Department of Molecular Ecology, Max Planck Institute for Chemical Ecology, Hans-Knöll-Str. 8, 07745 Jena, Germany
| | - Ian T. Baldwin
- Department of Molecular Ecology, Max Planck Institute for Chemical Ecology, Hans-Knöll-Str. 8, 07745 Jena, Germany
| | - Shree P. Pandey
- Department of Molecular Ecology, Max Planck Institute for Chemical Ecology, Hans-Knöll-Str. 8, 07745 Jena, Germany
- Department of Biological Sciences, IISER Kolkata, Mohanpur, Nadia, West Bengal 741246 India
| | - Karin Groten
- Department of Molecular Ecology, Max Planck Institute for Chemical Ecology, Hans-Knöll-Str. 8, 07745 Jena, Germany
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Zhang H, Zhang Y, Deng C, Deng S, Li N, Zhao C, Zhao R, Liang S, Chen S. The Arabidopsis Ca 2+-Dependent Protein Kinase CPK12 Is Involved in Plant Response to Salt Stress. Int J Mol Sci 2018; 19:ijms19124062. [PMID: 30558245 PMCID: PMC6321221 DOI: 10.3390/ijms19124062] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 12/11/2018] [Accepted: 12/12/2018] [Indexed: 11/22/2022] Open
Abstract
CDPKs (Ca2+-Dependent Protein Kinases) are very important regulators in plant response to abiotic stress. The molecular regulatory mechanism of CDPKs involved in salt stress tolerance remains unclear, although some CDPKs have been identified in salt-stress signaling. Here, we investigated the function of an Arabidopsis CDPK, CPK12, in salt-stress signaling. The CPK12-RNA interference (RNAi) mutant was much more sensitive to salt stress than the wild-type plant GL1 in terms of seedling growth. Under NaCl treatment, Na+ levels in the roots of CPK12-RNAi plants increased and were higher than levels in GL1 plants. In addition, the level of salt-elicited H2O2 production was higher in CPK12-RNAi mutants than in wild-type GL1 plants after NaCl treatment. Collectively, our results suggest that CPK12 is required for plant adaptation to salt stress.
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Affiliation(s)
- Huilong Zhang
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China.
| | - Yinan Zhang
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China.
| | - Chen Deng
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China.
| | - Shurong Deng
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China.
| | - Nianfei Li
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China.
| | - Chenjing Zhao
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China.
| | - Rui Zhao
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China.
| | - Shan Liang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, School of Food and Chemical Engineering, Beijing Technology and Business University, Beijing 100048, China.
| | - Shaoliang Chen
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China.
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Zhen Z, Zhang G, Yang L, Ma N, Li Q, Ma Y, Niu X, Zhang KQ, Yang J. Characterization and functional analysis of calcium/calmodulin-dependent protein kinases (CaMKs) in the nematode-trapping fungus Arthrobotrys oligospora. Appl Microbiol Biotechnol 2018; 103:819-832. [PMID: 30417308 DOI: 10.1007/s00253-018-9504-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 11/01/2018] [Accepted: 11/05/2018] [Indexed: 12/19/2022]
Abstract
Ca2+/calmodulin-dependent protein kinases (CaMKs) are unique second-messenger molecules that impact almost all cellular processes in eukaryotes. In this study, five genes encoding different CaMKs were characterized in the nematode-trapping fungus Arthrobotrys oligospora. These CaMKs, which were retrieved from the A. oligospora genome according to their orthologs in fungi such as Aspergillus nidulans and Neurospora crassa, were expressed at a low level in vitro during mycelial growth stages. Five deletion mutants corresponding to these CaMKs led to growth defects in different media and increased sensitivity to several environmental stresses, including H2O2, menadione, SDS, and Congo red; they also reduced the ability to produce conidia and traps, thus causing a deficiency in nematicidal ability as well. In addition, the transcriptional levels of several typical sporulation-related genes, such as MedA, VelB, and VeA, were down-regulated in all ΔCaMK mutants compared with the wild-type (WT) strain. Moreover, these mutants exhibited hypersensitivity to heat shock and ultraviolet-radiation stresses compared with the WT strain. These results suggest that the five CaMKs in A. oligospora are involved in regulating multiple cellular processes, such as growth, environmental stress tolerance, conidiation, trap formation, and virulence.
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Affiliation(s)
- Zhengyi Zhen
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, 650091, People's Republic of China
- School of Life Sciences, Yunnan University, Kunming, 650091, People's Republic of China
- Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming, 650091, People's Republic of China
| | - Guosheng Zhang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, 650091, People's Republic of China
- School of Life Sciences, Yunnan University, Kunming, 650091, People's Republic of China
- Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming, 650091, People's Republic of China
| | - Le Yang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, 650091, People's Republic of China
- School of Life Sciences, Yunnan University, Kunming, 650091, People's Republic of China
- Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming, 650091, People's Republic of China
| | - Ni Ma
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, 650091, People's Republic of China
- School of Life Sciences, Yunnan University, Kunming, 650091, People's Republic of China
- Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming, 650091, People's Republic of China
| | - Qing Li
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, 650091, People's Republic of China
- School of Life Sciences, Yunnan University, Kunming, 650091, People's Republic of China
- Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming, 650091, People's Republic of China
| | - Yuxin Ma
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, 650091, People's Republic of China
- School of Life Sciences, Yunnan University, Kunming, 650091, People's Republic of China
- Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming, 650091, People's Republic of China
| | - Xuemei Niu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, 650091, People's Republic of China
- School of Life Sciences, Yunnan University, Kunming, 650091, People's Republic of China
- Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming, 650091, People's Republic of China
| | - Ke-Qin Zhang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, 650091, People's Republic of China
- School of Life Sciences, Yunnan University, Kunming, 650091, People's Republic of China
- Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming, 650091, People's Republic of China
| | - Jinkui Yang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, 650091, People's Republic of China.
- School of Life Sciences, Yunnan University, Kunming, 650091, People's Republic of China.
- Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming, 650091, People's Republic of China.
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Reiser V, Ammerer G, Ruis H. Nucleocytoplasmic traffic of MAP kinases. Gene Expr 2018; 7:247-54. [PMID: 10440225 PMCID: PMC6174670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
MAPK pathways represent a unique extracellular signal response system. An important feature of such a multicomponent system appears to be the spatial intracellular organization of individual components. Recent studies demonstrate that the MAP kinases of such pathways are the molecular link between the plasma membrane sensors and the nuclear transcription factors. Stimulation of several MAPK pathways induces rapid and transient nuclear accumulation of MAP kinases. Investigations on the mode of regulation of this process using higher eukaryotes Erk2 and lower eukaryotes Hog1 and Sty1/Spc1 have revealed that at least three events contribute to signal-induced nuclear localization of these MAP kinases: activation by phosphorylation, regulated nuclear import and export, and nuclear retention.
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Affiliation(s)
- V Reiser
- Vienna Biocenter, Institute of Biochemistry and Molecular Cell Biology, University of Vienna and Ludwig Boltzmann-Forschungstelle für Biochemie, Austria
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45
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Kyriakis JM. Activation of the AP-1 transcription factor by inflammatory cytokines of the TNF family. Gene Expr 2018; 7:217-31. [PMID: 10440223 PMCID: PMC6174675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
Inflammatory cytokines of the tumor necrosis factor (TNF) family mediate a large variety of cellular and organismal inflammatory responses and are important to the pathogenesis of a number of important disease states including arthritis, septic shock, inflammatory bowel disease, and, possibly, type II diabetes. Many of the responses to these cytokines require de novo gene expression mediated by the activator protein-1 (AP-1) heterodimeric transcription factor. This review will discuss what is known of how cytokines of the TNF family, acting at the cell surface, recruit two mitogen-activated protein kinase (MAPK) subfamilies, the stress-activated protein kinases (SAPKs, also called JNKs) and the p38s, to transduce signals to AP-1.
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Affiliation(s)
- J M Kyriakis
- Massachusetts General Hospital and Department of Medicine, Harvard Medical School, Charlestown, USA.
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Mukhopadhyay D, Tsiokas L, Sukhatme VP. High cell density induces vascular endothelial growth factor expression via protein tyrosine phosphorylation. Gene Expr 2018; 7:53-60. [PMID: 9572397 PMCID: PMC6151943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Expression of vascular endothelial growth factor (VEGF), an angiogenic factor and endothelial cell-specific mitogen, is induced by hypoxia in various cell lines as well as in solid tumors. In this study, we report that cell density has a profound effect on the expression of VEGF in human glioblastoma cells (U87) and human fibrosarcoma cells (HT1080), an effect that is independent of hypoxia. Northern blot analysis revealed that VEGF mRNA levels were four- to eightfold higher in cells seeded at high density compared to cells seeded at low density. This upregulation of VEGF message in response to seeding at high density was not seen with other mRNAs such as those for TGF-beta1 or GAPDH. Conditioned medium switch experiments between sparse and dense cells suggested that soluble factor(s) may not account for the observed changes in VEGF expression. Incubation with genistein, a protein tyrosine kinase inhibitor, for 3 h following seeding resulted in the reduction of the VEGF mRNA levels in highly confluent cultures but not in sparse cultures. To identify protein tyrosine kinases involved in the upregulation of the steady-state levels of VEGF mRNA in highly dense cultures, we analyzed the phosphorylation state of the c-src tyrosine kinase, in high versus low confluency cultures of U87 and HT1080 cells. Interestingly, an increased phosphorylation at Tyr416 of c-src was noted in high compared to low confluency, suggesting the activation of c-src in highly confluent cultures. Because extracellular signal-regulated kinases (ERKs) such as MAP kinase have been shown to be activated by extracellular stimuli and act downstream of c-src, we examined their possible involvement in this process. We found that the tyrosine phosphorylation level of MAP kinase is higher in dense compared to sparse cultures and, moreover, 6-thioguanine (6-TG), a potent inhibitor of ERKs, reduced VEGF mRNA levels in high but not low confluency. Furthermore, reintroduction of wild-type, but not mutant, von Hippel-Lindau (VHL) gene product in 786-O cells (a renal carcinoma cell line) specifically abrogated the induction of VEGF mRNA due to high cell density. Taken together, these data suggest that VEGF gene expression is regulated by cell density, and the protooncogene c-src and the tumor-suppressor VHL are modulators of this regulation.
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Affiliation(s)
- Debabrata Mukhopadhyay
- Pathology Department, RN 270H, Beth Israel Deaconess Medical Center, 99 Brookline Avenue, Boston, MA 02215
| | - Leonidas Tsiokas
- Renal Division, Beth Israel Deaconess Medical Center and Harvard Medical School, 330 Brookline A venue, Boston, MA 02215
| | - Vikas P. Sukhatme
- Renal Division, Beth Israel Deaconess Medical Center and Harvard Medical School, 330 Brookline A venue, Boston, MA 02215
- Address correspondence to Vikas Sukhatme. Tel: (617) 667-2105; Fax: (617) 667-7843; E-mail:
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Martin JL, Hickey E, Weber LA, Dillmann WH, Mestril R. Influence of phosphorylation and oligomerization on the protective role of the small heat shock protein 27 in rat adult cardiomyocytes. Gene Expr 2018; 7:349-55. [PMID: 10440235 PMCID: PMC6174661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
Recent reports have demonstrated that the heat shock proteins (hsp) and in particular the hsp70 confer protection against cardiac ischemic damage. More recently, we have shown that increased expression of another heat shock protein, the hsp27, through an adenovirus vector system protects adult cardiomyocytes against ischemic injury. This small heat shock protein undergoes phosphorylation when the cell is under stress. This has led many to speculate that phosphorylation of hsp27 is required for the protective role this protein plays in the cell. In order to investigate this possibility, we have mutated the serines that are the sites of phosphorylation on the hsp27, to glycines or alanines. These nonphosphorylatable mutants of hsp27 were cloned into adenoviral vectors and used to infect adult rat cardiomyocytes to assess their ability in protecting against ischemic injury. In addition, we used a specific inhibitor of p38 MAP kinase that is a key member of the kinase pathway responsible for phosphorylating the hsp27. Our present results show that the nonphosphorylated hsp27 forms larger oligomeric complexes than the phosphorylated hsp27. Interestingly, phosphorylation of hsp27 seems not to play a role in its ability to protect adult rat cardiomyocytes against ischemic damage.
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Affiliation(s)
- Jody L. Martin
- Department of Physiology, The Cardiovascular Institute, Loyola University, Chicago, IL
| | - Eileen Hickey
- Department of Biology, University of Nevada, Reno, NV
| | - Lee A. Weber
- Department of Biology, University of Nevada, Reno, NV
| | | | - Ruben Mestril
- Department of Physiology, The Cardiovascular Institute, Loyola University, Chicago, IL
- Address correspondence to Ruben Mestril, Ph.D., The Cardiovascular Institute, Loyola University Medical Center, 2160 South First Avenue, Bldg. 110, Room 5227, Maywood, IL 60153. Tel: (708) 327-2395; Fax: (708) 327-2849; E-mail:
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Prodhan MY, Munemasa S, Nahar MNEN, Nakamura Y, Murata Y. Guard Cell Salicylic Acid Signaling Is Integrated into Abscisic Acid Signaling via the Ca 2+/CPK-Dependent Pathway. Plant Physiol 2018; 178:441-450. [PMID: 30037808 PMCID: PMC6130018 DOI: 10.1104/pp.18.00321] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 07/05/2018] [Indexed: 05/19/2023]
Abstract
The phenolic hormone salicylic acid (SA) induces stomatal closure. It has been suggested that SA signaling is integrated with abscisic acid (ABA) signaling in guard cells, but the integration mechanism remains unclear. The Ca2+-independent protein kinase Open Stomata1 (OST1) and Ca2+-dependent protein kinases (CPKs) are key for ABA-induced activation of the slow-type anion channel SLAC1 and stomatal closure. Here, we show that SA-induced stomatal closure and SA activation of slow-type anion channel are impaired in the CPK disruption mutant cpk3-2 cpk6-1 but not in the OST1 disruption mutant ost1-3 We also found that the key phosphorylation sites of SLAC1 in ABA signaling, serine-59 and serine-120, also are important for SA signaling. Chemiluminescence-based detection of superoxide anion revealed that SA did not require CPK3 and CPK6 for the induction of reactive oxygen species production. Taken together, our results suggest that SA activates peroxidase-mediated reactive oxygen species signal that is integrated into Ca2+/CPK-dependent ABA signaling branch but not the OST1-dependent signaling branch in Arabidopsis (Arabidopsis thaliana) guard cells.
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Affiliation(s)
- Md Yeasin Prodhan
- Graduate School of Environmental and Life Science, Okayama University, Kita-ku, Okayama 700-8530 Japan
| | - Shintaro Munemasa
- Graduate School of Environmental and Life Science, Okayama University, Kita-ku, Okayama 700-8530 Japan
| | - Mst Nur-E-Nazmun Nahar
- Graduate School of Environmental and Life Science, Okayama University, Kita-ku, Okayama 700-8530 Japan
| | - Yoshimasa Nakamura
- Graduate School of Environmental and Life Science, Okayama University, Kita-ku, Okayama 700-8530 Japan
| | - Yoshiyuki Murata
- Graduate School of Environmental and Life Science, Okayama University, Kita-ku, Okayama 700-8530 Japan
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Saito S, Hamamoto S, Moriya K, Matsuura A, Sato Y, Muto J, Noguchi H, Yamauchi S, Tozawa Y, Ueda M, Hashimoto K, Köster P, Dong Q, Held K, Kudla J, Utsumi T, Uozumi N. N-myristoylation and S-acylation are common modifications of Ca 2+ -regulated Arabidopsis kinases and are required for activation of the SLAC1 anion channel. New Phytol 2018; 218:1504-1521. [PMID: 29498046 DOI: 10.1111/nph.15053] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Accepted: 01/12/2018] [Indexed: 05/26/2023]
Abstract
N-myristoylation and S-acylation promote protein membrane association, allowing regulation of membrane proteins. However, how widespread this targeting mechanism is in plant signaling processes remains unknown. Through bioinformatics analyses, we determined that among plant protein kinase families, the occurrence of motifs indicative for dual lipidation by N-myristoylation and S-acylation is restricted to only five kinase families, including the Ca2+ -regulated CDPK-SnRK and CBL protein families. We demonstrated N-myristoylation of CDPK-SnRKs and CBLs by incorporation of radiolabeled myristic acid. We focused on CPK6 and CBL5 as model cases and examined the impact of dual lipidation on their function by fluorescence microscopy, electrophysiology and functional complementation of Arabidopsis mutants. We found that both lipid modifications were required for proper targeting of CBL5 and CPK6 to the plasma membrane. Moreover, we identified CBL5-CIPK11 complexes as phosphorylating and activating the guard cell anion channel SLAC1. SLAC1 activation by CPK6 or CBL5-CIPK11 was strictly dependent on dual lipid modification, and loss of CPK6 lipid modification prevented functional complementation of cpk3 cpk6 guard cell mutant phenotypes. Our findings establish the general importance of dual lipid modification for Ca2+ signaling processes, and demonstrate their requirement for guard cell anion channel regulation.
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Affiliation(s)
- Shunya Saito
- Department of Biomolecular Engineering, Graduate School of Engineering, Tohoku University, Aobayama 6-6-07, Sendai, 980-8579, Japan
| | - Shin Hamamoto
- Department of Biomolecular Engineering, Graduate School of Engineering, Tohoku University, Aobayama 6-6-07, Sendai, 980-8579, Japan
| | - Koko Moriya
- Department of Biological Chemistry, Faculty of Agriculture, Yamaguchi University, Yamaguchi, 753-8515, Japan
| | - Aiko Matsuura
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, 464-8601, Japan
| | - Yoko Sato
- Department of Biomolecular Engineering, Graduate School of Engineering, Tohoku University, Aobayama 6-6-07, Sendai, 980-8579, Japan
| | - Jun Muto
- Department of Biomolecular Engineering, Graduate School of Engineering, Tohoku University, Aobayama 6-6-07, Sendai, 980-8579, Japan
| | - Hiroto Noguchi
- Department of Biomolecular Engineering, Graduate School of Engineering, Tohoku University, Aobayama 6-6-07, Sendai, 980-8579, Japan
| | - Seiji Yamauchi
- Cell-Free Science and Technology Research Center, Ehime University, Matsuyama, 790-8577, Japan
| | - Yuzuru Tozawa
- Graduate School of Science and Engineering, Saitama University, Saitama, 338-8570, Japan
| | - Minoru Ueda
- Graduate School of Science, Tohoku University, Aramaki-Aza Aoba 6-3, Aoba-ku, Sendai, 980-8579, Japan
| | - Kenji Hashimoto
- Institut für Biologie und Biotechnologie der Pflanzen, Universität Münster, Schlossplatz 7, 48149, Münster, Germany
| | - Philipp Köster
- Institut für Biologie und Biotechnologie der Pflanzen, Universität Münster, Schlossplatz 7, 48149, Münster, Germany
| | - Qiuyan Dong
- Institut für Biologie und Biotechnologie der Pflanzen, Universität Münster, Schlossplatz 7, 48149, Münster, Germany
| | - Katrin Held
- Institut für Biologie und Biotechnologie der Pflanzen, Universität Münster, Schlossplatz 7, 48149, Münster, Germany
| | - Jörg Kudla
- Institut für Biologie und Biotechnologie der Pflanzen, Universität Münster, Schlossplatz 7, 48149, Münster, Germany
- College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Toshihiko Utsumi
- Department of Biological Chemistry, Faculty of Agriculture, Yamaguchi University, Yamaguchi, 753-8515, Japan
| | - Nobuyuki Uozumi
- Department of Biomolecular Engineering, Graduate School of Engineering, Tohoku University, Aobayama 6-6-07, Sendai, 980-8579, Japan
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50
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Wu Q, Chen X, Wang J, Sun P, Weng M, Chen W, Sun Z, Zhu M, Miao C. Nalmefene attenuates malignant potential in colorectal cancer cell via inhibition of opioid receptor. Acta Biochim Biophys Sin (Shanghai) 2018; 50:156-163. [PMID: 29267844 DOI: 10.1093/abbs/gmx131] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Indexed: 11/13/2022] Open
Abstract
Morphine is postulated a risk factor in promoting tumor growth and metastasis during the preoperative period, and high glycolysis of tumor cells is proved to accelerate tumor progression. In this study, we investigated whether nalmefene, an opioid receptor inhibitor, could inhibit CT26 colon cancer cell growth through influencing cell glycolysis. CCK8 and transwell migration assays showed that nalmefene inhibited CT26 cells viability and migration in a concentration-dependent manner. Extracellular acidification rate and oxygen consumption rate showed that nalmefene inhibited glycolysis of CT26 cells. Moreover, western blot analysis and quantitative real-time PCR revealed that nalmefene decreased the expressions of enzymes related to glycolysis. Flow cytometry results revealed that intracellular calcium (Ca2+) level was changed by nalmefene, western blot analysis showed that nalmefene decreased calmodulin expression and calcium/calmodulin dependent protein kinases II (CaMK II) phosphorylation, thus inhibiting the serine/threonine kinase (AKT)-glycogen synthase kinase-3β (GSK-3β) pathway. Furthermore, the effects of KN93, an inhibitor of CaMK II, were similar to the effects of nalmefene, and the anti-tumor effect of nalmefene could be counteracted by morphine. In conclusion, the anti-tumor effect of nalmefene may be achieved by inhibiting opioid receptor and down-regulating calmodulin expression and CaMK II phosphorylation, thus inhibiting AKT-GSK-3β pathway and the glycolysis of CT26 cells.
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Affiliation(s)
- Qichao Wu
- Department of Anaesthesiology, Fudan University Shanghai Cancer Centre, Shanghai 200032, China
- Department of Anesthesiology, Shanghai Medical College, Fudan University, Shanghai 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Xiangyuan Chen
- Department of Anaesthesiology, Fudan University Shanghai Cancer Centre, Shanghai 200032, China
- Department of Anesthesiology, Shanghai Medical College, Fudan University, Shanghai 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Jiaqiang Wang
- Department of Anaesthesiology, Fudan University Shanghai Cancer Centre, Shanghai 200032, China
- Department of Anesthesiology, Shanghai Medical College, Fudan University, Shanghai 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Pengfei Sun
- Department of Anaesthesiology, Fudan University Shanghai Cancer Centre, Shanghai 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Meilin Weng
- Department of Anaesthesiology, Fudan University Shanghai Cancer Centre, Shanghai 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Wankun Chen
- Department of Anaesthesiology, Fudan University Shanghai Cancer Centre, Shanghai 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Zhirong Sun
- Department of Anaesthesiology, Fudan University Shanghai Cancer Centre, Shanghai 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Minmin Zhu
- Department of Anaesthesiology, Fudan University Shanghai Cancer Centre, Shanghai 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Changhong Miao
- Department of Anaesthesiology, Fudan University Shanghai Cancer Centre, Shanghai 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
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