51
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Das S, Sarkar HS, Uddin MR, Rissanen K, Mandal S, Sahoo P. Differential detection and quantification of cyclic AMP and other adenosine phosphates in live cells. Chem Commun (Camb) 2018. [PMID: 28639644 DOI: 10.1039/c7cc02935g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A new naphthol-based rhodamine derivative (NpRD) has been developed for the selective and differential detection of adenosine 3',5'-cyclic monophosphate (cAMP) and adenosine phosphates (APs) (ATP, ADP, and AMP) from other nucleotides. The simple detection and quantification of cAMP in human blood cells and in other samples based on the 'turn on' fluorescence properties of this chemosensor through colorimetry or fluorometry makes it unique for probable application in high throughput screening.
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Affiliation(s)
- Sujoy Das
- Department of Chemistry, Visva-Bharati university, Santiniketan, 731235, India.
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52
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CodY-Mediated c-di-GMP-Dependent Inhibition of Mammalian Cell Invasion in Listeria monocytogenes. J Bacteriol 2018; 200:JB.00457-17. [PMID: 29229701 DOI: 10.1128/jb.00457-17] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 11/28/2017] [Indexed: 01/11/2023] Open
Abstract
Elevated levels of the second messenger c-di-GMP suppress virulence in diverse pathogenic bacteria, yet mechanisms are poorly characterized. In the foodborne pathogen Listeria monocytogenes, high c-di-GMP levels inhibit mammalian cell invasion. Here, we show that invasion is impaired because of the decreased expression levels of internalin genes whose products are involved in invasion. We further show that at high c-di-GMP levels, the expression of the entire virulence regulon is suppressed, and so is the expression of the prfA gene encoding the master activator of the virulence regulon. Analysis of mechanisms controlling prfA expression pointed to the transcription factor CodY as a c-di-GMP-sensitive component. In high-c-di-GMP strains, codY gene expression is decreased, apparently due to the lower activity of CodY, which functions as an activator of codY transcription. We found that listerial CodY does not bind c-di-GMP in vitro and therefore investigated whether c-di-GMP levels affect two known cofactors of listerial CodY, branched-chain amino acids and GTP. Our manipulation of branched-chain amino acid levels did not perturb the c-di-GMP effect; however, our replacement of listerial CodY with the streptococcal CodY homolog, whose activity is GTP independent, abolished the c-di-GMP effect. The results of this study suggest that elevated c-di-GMP levels decrease the activity of the coordinator of metabolism and virulence, CodY, possibly via lower GTP levels, and that decreased CodY activity suppresses L. monocytogenes virulence by the decreased expression of the PrfA virulence regulon.IMPORTANCEListeria monocytogenes is a pathogen causing listeriosis, a disease responsible for the highest mortality rate among foodborne diseases. Understanding how the virulence of this pathogen is regulated is important for developing treatments to decrease the frequency of listerial infections in susceptible populations. In this study, we describe the mechanism through which elevated levels of the second messenger c-di-GMP inhibit listerial invasion in mammalian cells. Inhibition is caused by the decreased activity of the transcription factor CodY that coordinates metabolism and virulence.
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53
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Sooreshjani MA, Gursoy UK, Aryal UK, Sintim HO. Proteomic analysis of RAW macrophages treated with cGAMP or c-di-GMP reveals differentially activated cellular pathways. RSC Adv 2018; 8:36840-36851. [PMID: 35558957 PMCID: PMC9089301 DOI: 10.1039/c8ra04603d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 10/23/2018] [Indexed: 12/28/2022] Open
Abstract
Global and quantitative analysis of the proteome help to reveal how host cells sense invading bacteria and respond to bacterial signaling molecules. Here, we performed label free quantitative proteomic analysis of RAW macrophages treated with host-derived cGAMP and bacterial-derived c-di-GMP, in an attempt to identify cellular pathways impacted by these dinucleotides and determine if the host responds differentially to these two cyclic dinucleotides. We identified a total of 3811 proteins of which abundances of 404 proteins in cGAMP and 236 proteins in c-di-GMP treated cells were significantly different compared to the control. Many of the proteins that were strongly and commonly upregulated, such as interferon-induced proteins 47, 202 and 204 (Ifi47, Ifi202, Ifi204), ubiquitin-activating enzyme E7 (Uba7), interferon-induced protein with tetratricopeptide repeats 1, 2 or 3 (Ifit1, Ifit2, Ifit3), ubiquitin-like protein ISG15 (ISG15), might be due to the fact that both dinucleotides promote the production of interferons, which induce the expression of many proteins. However, there were also other proteins that were differentially affected by cGAMP or c-di-GMP treatment, including probable ATP-dependent RNA helicase DHX58 (Dhx58), nuclear autoantigen Sp-100 (Sp100), MARCKS-related protein (Marcksl1) and antigen peptide transporter 2 (Tap2). This is probably due to the differential levels of IFNs produced by the dinucleotides or may indicate that non-STING activation might also contribute to the host's response to c-di-GMP and cGAMP. Interestingly Trex1, a nuclease that degrades DNA (an activator of cGAS to produce cGAMP), was upregulated (3.22 fold) upon cGAMP treatment, hinting at a possible feedback loop to regulate cGAMP synthesis. These results lay a foundation for future studies to better characterize and understand the complex c-di-GMP and cGAMP signaling network. cGAMP modulates proteins involved in antigen presentation and inflammation.![]()
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Affiliation(s)
| | - Ulvi K. Gursoy
- Department of Periodontology
- Institute of Dentistry
- University of Turku
- Turku
- Finland
| | - Uma K. Aryal
- Purdue Proteomics Facility
- Bindley Bioscience Center
- Purdue University
- West Lafayette
- USA
| | - Herman O. Sintim
- Department of Chemistry
- Purdue University
- West Lafayette
- USA
- Department of Periodontology
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54
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Fahmi T, Port GC, Cho KH. c-di-AMP: An Essential Molecule in the Signaling Pathways that Regulate the Viability and Virulence of Gram-Positive Bacteria. Genes (Basel) 2017; 8:E197. [PMID: 28783096 PMCID: PMC5575661 DOI: 10.3390/genes8080197] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 07/29/2017] [Accepted: 07/31/2017] [Indexed: 11/16/2022] Open
Abstract
Signal transduction pathways enable organisms to monitor their external environment and adjust gene regulation to appropriately modify their cellular processes. Second messenger nucleotides including cyclic adenosine monophosphate (c-AMP), cyclic guanosine monophosphate (c-GMP), cyclic di-guanosine monophosphate (c-di-GMP), and cyclic di-adenosine monophosphate (c-di-AMP) play key roles in many signal transduction pathways used by prokaryotes and/or eukaryotes. Among the various second messenger nucleotides molecules, c-di-AMP was discovered recently and has since been shown to be involved in cell growth, survival, and regulation of virulence, primarily within Gram-positive bacteria. The cellular level of c-di-AMP is maintained by a family of c-di-AMP synthesizing enzymes, diadenylate cyclases (DACs), and degradation enzymes, phosphodiesterases (PDEs). Genetic manipulation of DACs and PDEs have demonstrated that alteration of c-di-AMP levels impacts both growth and virulence of microorganisms. Unlike other second messenger molecules, c-di-AMP is essential for growth in several bacterial species as many basic cellular functions are regulated by c-di-AMP including cell wall maintenance, potassium ion homeostasis, DNA damage repair, etc. c-di-AMP follows a typical second messenger signaling pathway, beginning with binding to receptor molecules to subsequent regulation of downstream cellular processes. While c-di-AMP binds to specific proteins that regulate pathways in bacterial cells, c-di-AMP also binds to regulatory RNA molecules that control potassium ion channel expression in Bacillus subtilis. c-di-AMP signaling also occurs in eukaryotes, as bacterially produced c-di-AMP stimulates host immune responses during infection through binding of innate immune surveillance proteins. Due to its existence in diverse microorganisms, its involvement in crucial cellular activities, and its stimulating activity in host immune responses, c-di-AMP signaling pathway has become an attractive antimicrobial drug target and therefore has been the focus of intensive study in several important pathogens.
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Affiliation(s)
- Tazin Fahmi
- Department of Biology, Indiana State University, Terre Haute, IN 47809, USA.
| | - Gary C Port
- Department of Molecular Microbiology, Washington University School of Medicine, Saint Louis, MO 63110, USA.
- Elanco Animal Health, Natural Products Fermentation, Eli Lilly and Company, Indianapolis, IN 46285, USA.
| | - Kyu Hong Cho
- Department of Biology, Indiana State University, Terre Haute, IN 47809, USA.
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55
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Pal C, Chakraborty TK. Synthesis of Amide-Linked Cyclic Dinucleotide Analogues with Pyrimidine Bases. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700260] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Chandan Pal
- Department of Organic Chemistry; Indian Institute of Science; Bangalore- 560012 India
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56
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Sodium Lactate Negatively Regulates Shewanella putrefaciens CN32 Biofilm Formation via a Three-Component Regulatory System (LrbS-LrbA-LrbR). Appl Environ Microbiol 2017; 83:AEM.00712-17. [PMID: 28500045 DOI: 10.1128/aem.00712-17] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 05/09/2017] [Indexed: 11/20/2022] Open
Abstract
The capability of biofilm formation has a major impact on the industrial and biotechnological applications of Shewanella putrefaciens CN32. However, the detailed regulatory mechanisms underlying biofilm formation in this strain remain largely unknown. In the present report, we describe a three-component regulatory system which negatively regulates the biofilm formation of S. putrefaciens CN32. This system consists of a histidine kinase LrbS (Sputcn32_0303) and two cognate response regulators, including a transcription factor, LrbA (Sputcn32_0304), and a phosphodiesterase, LrbR (Sputcn32_0305). LrbS responds to the signal of the carbon source sodium lactate and subsequently activates LrbA. The activated LrbA then promotes the expression of lrbR, the gene for the other response regulator. The bis-(3'-5')-cyclic dimeric GMP (c-di-GMP) phosphodiesterase LrbR, containing an EAL domain, decreases the concentration of intracellular c-di-GMP, thereby negatively regulating biofilm formation. In summary, the carbon source sodium lactate acts as a signal molecule that regulates biofilm formation via a three-component regulatory system (LrbS-LrbA-LrbR) in S. putrefaciens CN32.IMPORTANCE Biofilm formation is a significant capability used by some bacteria to survive in adverse environments. Numerous environmental factors can affect biofilm formation through different signal transduction pathways. Carbon sources are critical nutrients for bacterial growth, and their concentrations and types significantly influence the biomass and structure of biofilms. However, knowledge about the underlying mechanism of biofilm formation regulation by carbon source is still limited. This work elucidates a modulation pattern of biofilm formation negatively regulated by sodium lactate as a carbon source via a three-component regulatory system in S. putrefaciens CN32, which may serve as a good example for studying how the carbon sources impact biofilm development in other bacteria.
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57
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Kazlauskiene M, Kostiuk G, Venclovas Č, Tamulaitis G, Siksnys V. A cyclic oligonucleotide signaling pathway in type III CRISPR-Cas systems. Science 2017; 357:605-609. [PMID: 28663439 DOI: 10.1126/science.aao0100] [Citation(s) in RCA: 302] [Impact Index Per Article: 43.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Accepted: 06/22/2017] [Indexed: 12/26/2022]
Abstract
Type III CRISPR-Cas systems in prokaryotes provide immunity against invading nucleic acids through the coordinated degradation of transcriptionally active DNA and its transcripts by the Csm effector complex. The Cas10 subunit of the complex contains an HD nuclease domain that is responsible for DNA degradation and two Palm domains with elusive functions. In addition, Csm6, a ribonuclease that is not part of the complex, is also required to provide full immunity. We show here that target RNA binding by the Csm effector complex of Streptococcus thermophilus triggers Cas10 to synthesize cyclic oligoadenylates (cA n ; n = 2 to 6) by means of the Palm domains. Acting as signaling molecules, cyclic oligoadenylates bind Csm6 to activate its nonspecific RNA degradation. This cyclic oligoadenylate-based signaling pathway coordinates different components of CRISPR-Cas to prevent phage infection and propagation.
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Affiliation(s)
- Migle Kazlauskiene
- Institute of Biotechnology, Vilnius University, Saulėtekio Avenue 7, 10257 Vilnius, Lithuania
| | - Georgij Kostiuk
- Institute of Biotechnology, Vilnius University, Saulėtekio Avenue 7, 10257 Vilnius, Lithuania
| | - Česlovas Venclovas
- Institute of Biotechnology, Vilnius University, Saulėtekio Avenue 7, 10257 Vilnius, Lithuania
| | - Gintautas Tamulaitis
- Institute of Biotechnology, Vilnius University, Saulėtekio Avenue 7, 10257 Vilnius, Lithuania.
| | - Virginijus Siksnys
- Institute of Biotechnology, Vilnius University, Saulėtekio Avenue 7, 10257 Vilnius, Lithuania.
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58
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Gürsoy UK, Gürsoy M, Könönen E, Sintim HO. Cyclic Dinucleotides in Oral Bacteria and in Oral Biofilms. Front Cell Infect Microbiol 2017; 7:273. [PMID: 28680857 PMCID: PMC5478684 DOI: 10.3389/fcimb.2017.00273] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Accepted: 06/06/2017] [Indexed: 12/13/2022] Open
Abstract
Oral cavity acts as a reservoir of bacterial pathogens for systemic infections and several oral microorganisms have been linked to systemic diseases. Quorum sensing and cyclic dinucleotides, two "decision-making" signaling systems, communicate to regulate physiological process in bacteria. Discovery of cyclic dinucleotides has a long history, but the progress in our understanding of how cyclic dinucleotides regulate bacterial lifestyle is relatively new. Oral microorganisms form some of the most intricate biofilms, yet c-di-GMP, and c-di-AMP signaling have been rarely studied in oral biofilms. Recent studies demonstrated that, with the aid of bacterial messenger molecules and their analogs, it is possible to activate host innate and adaptive immune responses and epithelial integrity with a dose that is relevant to inhibit bacterial virulence mechanisms, such as fimbriae and exopolysaccharide production, biofilm formation, and host cell invasion. The aim of this perspective article is to present available information on cyclic dinucleotides in oral bacteria and in oral biofilms. Moreover, technologies that can be used to detect cyclic dinucleotides in oral biofilms are described. Finally, directions for future research are highlighted.
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Affiliation(s)
- Ulvi K Gürsoy
- Department of Periodontology, Institute of Dentistry, University of TurkuTurku, Finland
| | - Mervi Gürsoy
- Department of Periodontology, Institute of Dentistry, University of TurkuTurku, Finland
| | - Eija Könönen
- Department of Periodontology, Institute of Dentistry, University of TurkuTurku, Finland.,Oral Health Care, Welfare DivisionCity of Turku, Turku, Finland
| | - Herman O Sintim
- Department of Chemistry and Purdue Institute for Drug Discovery and Purdue Institute of Inflammation, Immunology and Infectious Disease, Purdue UniversityWest Lafayette, IN, United States
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59
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Abstract
The possibility of an RNA World is based on the notion that life on Earth passed through a primitive phase without proteins, a time when all genomes and enzymes were composed of ribonucleic acids. Numerous apparent vestiges of this ancient RNA World remain today, including many nucleotide-derived coenzymes, self-processing ribozymes, metabolite-binding riboswitches, and even ribosomes. Many of the most common signaling molecules and second messengers used by modern organisms are also formed from RNA nucleotides or their precursors. For example, nucleotide derivatives such as cAMP, ppGpp, and ZTP, as well as the cyclic dinucleotides c-di-GMP and c-di-AMP, are intimately involved in signaling diverse physiological or metabolic changes in bacteria and other organisms. We describe the potential diversity of this "lost language" of the RNA World and speculate on whether additional components of this ancient communication machinery might remain hidden though still very much relevant to modern cells.
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Affiliation(s)
- James W Nelson
- Department of Molecular, Cellular and Developmental Biology, Yale University, P.O. Box 208103, New Haven, CT 06520, USA
| | - Ronald R Breaker
- Department of Molecular, Cellular and Developmental Biology, Yale University, P.O. Box 208103, New Haven, CT 06520, USA. .,Department of Molecular Biophysics and Biochemistry, Yale University, P.O. Box 208103, New Haven, CT 06520, USA.,Howard Hughes Medical Institute, Yale University, New Haven, CT 06520, USA
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60
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Fletcher MH, Burns-Lynch CE, Knouse KW, Abraham LT, DeBrosse CW, Wuest WM. A novel application of the Staudinger ligation to access neutral cyclic di-nucleotide analog precursors via a divergent method. RSC Adv 2017; 7:29835-29838. [PMID: 28670448 PMCID: PMC5472050 DOI: 10.1039/c7ra06045a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 06/01/2017] [Indexed: 11/21/2022] Open
Abstract
Our efforts to develop a scalable and divergent synthesis of cyclic di-nucleotide analog precursors have resulted in (1) an orthogonally protected di-amino carbohydrate as well as (2) the novel application of the Staudinger ligation to provide medium-sized macrocycles featuring carbamate or urea linkages.
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Affiliation(s)
- M H Fletcher
- Department of Chemistry, Temple University, Philadelphia, PA 19122, USA
| | - C E Burns-Lynch
- Department of Chemistry, Temple University, Philadelphia, PA 19122, USA
| | - K W Knouse
- Department of Chemistry, Temple University, Philadelphia, PA 19122, USA
| | - L T Abraham
- Department of Chemistry, Temple University, Philadelphia, PA 19122, USA
| | - C W DeBrosse
- Department of Chemistry, Temple University, Philadelphia, PA 19122, USA
| | - W M Wuest
- Department of Chemistry, Emory University, Atlanta, GA 30322, USA.
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61
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STING signaling in tumorigenesis and cancer therapy: A friend or foe? Cancer Lett 2017; 402:203-212. [PMID: 28602976 DOI: 10.1016/j.canlet.2017.05.026] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 05/20/2017] [Accepted: 05/31/2017] [Indexed: 12/19/2022]
Abstract
Stimulator of interferon genes (STING) is a DNA sensor and an important cytoplasmic adaptor for other DNA sensors, such as Z-DNA binding protein 1 (DAI), DEAD-box helicase 41 (DDX41), and interferon-γ-inducible protein 16 (IFI16). The activation of STING signaling leads to the production of type I interferons and some other pro-inflammatory cytokines, which are critical for host defense against viral infection. Recent accumulating evidences suggest that STING is also involved in tumor development. However, the role of STING signaling in tumorigenesis is complicated, and a comprehensive review is still lacking. In this paper, we provided an overview of the dual role of STING signaling in tumor development from clinical significance to fundamental mechanisms, as well as its pre-clinical application in cancer therapy.
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62
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Krasteva PV, Sondermann H. Versatile modes of cellular regulation via cyclic dinucleotides. Nat Chem Biol 2017; 13:350-359. [PMID: 28328921 DOI: 10.1038/nchembio.2337] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Accepted: 01/17/2017] [Indexed: 02/06/2023]
Abstract
Since the discovery of c-di-GMP almost three decades ago, cyclic dinucleotides (CDNs) have emerged as widely used signaling molecules in most kingdoms of life. The family of second messengers now includes c-di-AMP and distinct versions of mixed cyclic GMP-AMP (cGAMP) compounds. In addition to these nucleotides, a vast number of proteins for the production and turnover of these molecules have been described, as well as effectors that translate the signals into physiological responses. The latter include, but are not limited to, mechanisms for adaptation and survival in prokaryotes, persistence and virulence of bacterial pathogens, and immune responses to viral and bacterial invasion in eukaryotes. In this review, we will focus on recent discoveries and emerging themes that illustrate the ubiquity and versatility of cyclic dinucleotide function at the transcriptional and post-translational levels and, in particular, on insights gained through mechanistic structure-function analyses.
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Affiliation(s)
- Petya Violinova Krasteva
- Unité G5 Biologie Structurale de la Sécrétion Bactérienne, UMR 3528 - CNRS, Institut Pasteur, Paris, France.,Structural Biology of Biofilms Group, Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris Sud, Gif sur Yvette, France
| | - Holger Sondermann
- Department of Molecular Medicine, College of Veterinary Medicine, Cornell University, Ithaca, New York, USA
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63
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Opoku-Temeng C, Dayal N, Miller J, Sintim HO. Hydroxybenzylidene-indolinones, c-di-AMP synthase inhibitors, have antibacterial and anti-biofilm activities and also re-sensitize resistant bacteria to methicillin and vancomycin. RSC Adv 2017. [DOI: 10.1039/c6ra28443d] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Hydroxybenzylidene-indolinones, newly identified inhibitors of c-di-AMP synthases, inhibit biofilm formation, Gram-positive bacterial growth and sensitize resistant bacteria to methicillin and vancomycin.
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Affiliation(s)
- Clement Opoku-Temeng
- Purdue Institute for Drug Discovery
- Purdue University
- West Lafayette
- USA
- Biochemistry Graduate Program
| | - Neetu Dayal
- Purdue Institute for Drug Discovery
- Purdue University
- West Lafayette
- USA
- Department of Chemistry
| | - Jacob Miller
- Department of Chemistry
- Purdue University
- West Lafayette
- USA
| | - Herman O. Sintim
- Purdue Institute for Drug Discovery
- Purdue University
- West Lafayette
- USA
- Department of Chemistry
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64
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Zhou J, Zheng Y, Roembke BT, Robinson S, Opoku-Temeng C, Sayre DA, Sintim HO. Fluorescent analogs of cyclic and linear dinucleotides as phosphodiesterase and oligoribonuclease activity probes. RSC Adv 2017. [DOI: 10.1039/c6ra25394f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
2-Aminopurine or etheno adenosine cyclic dinucleotide probes can report the activity of cyclic dinucleotide PDEs or oligoribonucleases.
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Affiliation(s)
- Jie Zhou
- Purdue Institute for Drug Discovery
- Purdue University
- West Lafayette
- USA
- Department of Chemistry
| | - Yue Zheng
- Purdue Institute for Drug Discovery
- Purdue University
- West Lafayette
- USA
- Department of Chemistry and Biochemistry
| | - Benjamin T. Roembke
- Department of Chemistry and Biochemistry
- University of Maryland
- College Park
- USA
| | - Sarah M. Robinson
- Department of Chemistry and Biochemistry
- University of Maryland
- College Park
- USA
| | - Clement Opoku-Temeng
- Purdue Institute for Drug Discovery
- Purdue University
- West Lafayette
- USA
- Department of Chemistry and Biochemistry
| | - David A. Sayre
- Department of Chemistry and Biochemistry
- University of Maryland
- College Park
- USA
| | - Herman O. Sintim
- Purdue Institute for Drug Discovery
- Purdue University
- West Lafayette
- USA
- Department of Chemistry
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65
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Namasivayam V, Lee SY, Müller CE. The promiscuous ectonucleotidase NPP1: molecular insights into substrate binding and hydrolysis. Biochim Biophys Acta Gen Subj 2016; 1861:603-614. [PMID: 28011303 DOI: 10.1016/j.bbagen.2016.12.019] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Revised: 12/16/2016] [Accepted: 12/19/2016] [Indexed: 12/20/2022]
Affiliation(s)
- Vigneshwaran Namasivayam
- PharmaCenter Bonn, Pharmaceutical Institute, Pharmaceutical Sciences Bonn (PSB), Pharmaceutical Chemistry I, University of Bonn, Germany
| | - Sang-Yong Lee
- PharmaCenter Bonn, Pharmaceutical Institute, Pharmaceutical Sciences Bonn (PSB), Pharmaceutical Chemistry I, University of Bonn, Germany
| | - Christa E Müller
- PharmaCenter Bonn, Pharmaceutical Institute, Pharmaceutical Sciences Bonn (PSB), Pharmaceutical Chemistry I, University of Bonn, Germany.
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66
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Tao J, Zhou X, Jiang Z. cGAS-cGAMP-STING: The three musketeers of cytosolic DNA sensing and signaling. IUBMB Life 2016; 68:858-870. [PMID: 27706894 DOI: 10.1002/iub.1566] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2016] [Accepted: 09/11/2016] [Indexed: 12/19/2022]
Abstract
Innate immunity is the first line of host defense against invading pathogens. The detection of aberrant nucleic acids which represent some conserved PAMPs triggers robust type I IFN-mediated innate immune responses. Host- or pathogen-derived cytosolic DNA binds and activates the DNA sensor cGAS, which synthesizes the second messenger 2'3'-cGAMP and triggers STING-dependent downstream signaling. Here, we highlight recent progress in cGAS-cGAMP-STING, the Three Musketeers of cytosolic DNA sensing and signaling, and their essential roles in infection, autoimmune diseases, and cancer. We also focus on the regulation of these critical signal components by variant host/pathogen proteins and update our understanding of this indispensable pathway to provide new insights for drug discovery. © 2016 IUBMB Life, 68(11):858-870, 2016.
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Affiliation(s)
- Jianli Tao
- State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Peking University, Beijing, China.,Key Laboratory of Cell Proliferation and Differentiation of the Ministry of Education, School of Life Sciences, Peking University, Beijing, China.,Peking-Tsinghua Center for Life Sciences, Beijing, China
| | - Xiang Zhou
- State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Peking University, Beijing, China.,Key Laboratory of Cell Proliferation and Differentiation of the Ministry of Education, School of Life Sciences, Peking University, Beijing, China.,Peking-Tsinghua Center for Life Sciences, Beijing, China
| | - Zhengfan Jiang
- State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Peking University, Beijing, China. .,Key Laboratory of Cell Proliferation and Differentiation of the Ministry of Education, School of Life Sciences, Peking University, Beijing, China. .,Peking-Tsinghua Center for Life Sciences, Beijing, China.
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