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Balmes A, Rodríguez JG, Seifert J, Pinto-Quintero D, Khawaja AA, Boffito M, Frye M, Friebe A, Emerson M, Seta F, Feil R, Feil S, Schäffer TE. Role of the NO-GC/cGMP signaling pathway in platelet biomechanics. Platelets 2024; 35:2313359. [PMID: 38353233 DOI: 10.1080/09537104.2024.2313359] [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: 07/05/2023] [Accepted: 01/26/2024] [Indexed: 02/16/2024]
Abstract
Cyclic guanosine monophosphate (cGMP) is a second messenger produced by the NO-sensitive guanylyl cyclase (NO-GC). The NO-GC/cGMP pathway in platelets has been extensively studied. However, its role in regulating the biomechanical properties of platelets has not yet been addressed and remains unknown. We therefore investigated the stiffness of living platelets after treatment with the NO-GC stimulator riociguat or the NO-GC activator cinaciguat using scanning ion conductance microscopy (SICM). Stimulation of human and murine platelets with cGMP-modulating drugs decreased cellular stiffness and downregulated P-selectin, a marker for platelet activation. We also quantified changes in platelet shape using deep learning-based platelet morphometry, finding that platelets become more circular upon treatment with cGMP-modulating drugs. To test for clinical applicability of NO-GC stimulators in the context of increased thrombogenicity risk, we investigated the effect of riociguat on platelets from human immunodeficiency virus (HIV)-positive patients taking abacavir sulfate (ABC)-containing regimens. Our results corroborate a functional role of the NO-GC/cGMP pathway in platelet biomechanics, indicating that biomechanical properties such as stiffness or shape could be used as novel biomarkers in clinical research.
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Affiliation(s)
- Aylin Balmes
- Institute of Applied Physics, University of Tübingen, Tübingen, Germany
| | - Johanna G Rodríguez
- Institute of Applied Physics, University of Tübingen, Tübingen, Germany
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Jan Seifert
- Institute of Applied Physics, University of Tübingen, Tübingen, Germany
| | - Daniel Pinto-Quintero
- Interfaculty Institute of Biochemistry (IFIB), University of Tübingen, Tübingen, Germany
| | - Akif A Khawaja
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Marta Boffito
- Department of Infectious Disease, Imperial College London, London, UK
- St Stephen's Centre, Chelsea and Westminster NHS Foundation Trust, London, UK
| | - Maike Frye
- Institute for Clinical Chemistry and Laboratory Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Andreas Friebe
- Physiological Institute, Julius Maximilian University of Würzburg, Würzburg, Germany
| | - Michael Emerson
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Francesca Seta
- Vascular Biology Section, Chobanian & Avedisian School of Medicine, Boston University, Boston, MA, USA
| | - Robert Feil
- Interfaculty Institute of Biochemistry (IFIB), University of Tübingen, Tübingen, Germany
| | - Susanne Feil
- Interfaculty Institute of Biochemistry (IFIB), University of Tübingen, Tübingen, Germany
| | - Tilman E Schäffer
- Institute of Applied Physics, University of Tübingen, Tübingen, Germany
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2
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Ghezzi AC, Passos GR, de Oliveira MG, Oliveira AL, Assis-Mendonça GR, de Mello GC, Antunes E, Monica FZ. A 2-week treatment with 5-azacytidine improved the hypercontractility state in prostate from obese mice: Role of the nitric oxide-cyclic guanosine monophosphate signalling pathway. Clin Exp Pharmacol Physiol 2024; 51:e13851. [PMID: 38452757 DOI: 10.1111/1440-1681.13851] [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: 09/04/2023] [Revised: 01/11/2024] [Accepted: 02/12/2024] [Indexed: 03/09/2024]
Abstract
Benign prostatic hyperplasia (BPH) is characterised by increases in prostate volume and contraction. Downregulation of the nitric oxide (NO)-cyclic guanosine monophosphate (cGMP) signalling pathway contributes to prostate dysfunctions. Previous studies in cancer cells or vessels have shown that the epigenetic mechanisms control the gene and protein expression of the enzymes involved in the production of NO and cGMP. This study is aimed to evaluate the effect of a 2-week treatment of 5-azacytidine (5-AZA), a DNA-methyltransferase inhibitor, in the prostate function of mice fed with a high-fat diet. Functional, histological, biochemical and molecular assays were carried out. Obese mice presented greater prostate weight, α-actin expression and contractile response induced by the α-1adrenoceptors agonist. The relaxation induced by the NO-donor and the protein expression of endothelial nitric oxide synthase (eNOS) and soluble guanylate cyclase (sGC) were significantly decreased in the prostate of obese mice. The treatment with 5-AZA reverted the higher expression of α-actin, reduced the hypercontractility state of the prostate and increased the expression of eNOS and sGC and intraprostatic levels of cGMP. When prostates from obese mice treated with 5-AZA were incubated in vitro with inhibitors of the NOS or sGC, the inhibitory effect of 5-AZA was reverted, therefore, showing the involvement of NO and cGMP. In conclusion, our study paves the way to develop or repurpose therapies that recover the expression of eNOS and sGC and, hence, to improve prostate function in BPH.
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Affiliation(s)
- Ana Carolina Ghezzi
- Department of Translation Medicine (Pharmacology area), Faculty of Medical Sciences, University of Campinas (Unicamp), Campinas, Brazil
| | - Gabriela Reolon Passos
- Department of Translation Medicine (Pharmacology area), Faculty of Medical Sciences, University of Campinas (Unicamp), Campinas, Brazil
| | - Mariana Gonçalves de Oliveira
- Department of Translation Medicine (Pharmacology area), Faculty of Medical Sciences, University of Campinas (Unicamp), Campinas, Brazil
| | - Akila Lara Oliveira
- Department of Translation Medicine (Pharmacology area), Faculty of Medical Sciences, University of Campinas (Unicamp), Campinas, Brazil
| | - Guilherme Rossi Assis-Mendonça
- Department of Pathology, Faculty of Medical Sciences, University of Campinas (Unicamp), Campinas, Brazil
- National Academy of Medicine, Young Leadership Physician Program, Rio de Janeiro, Brazil
| | - Glaucia Coelho de Mello
- Department of Translation Medicine (Pharmacology area), Faculty of Medical Sciences, University of Campinas (Unicamp), Campinas, Brazil
| | - Edson Antunes
- Department of Translation Medicine (Pharmacology area), Faculty of Medical Sciences, University of Campinas (Unicamp), Campinas, Brazil
| | - Fabiola Zakia Monica
- Department of Translation Medicine (Pharmacology area), Faculty of Medical Sciences, University of Campinas (Unicamp), Campinas, Brazil
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3
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Serafin EK, Yoo JJ, Li J, Dong X, Baccei ML. Development and characterization of a Gucy2d-cre mouse to selectively manipulate a subset of inhibitory spinal dorsal horn interneurons. PLoS One 2024; 19:e0300282. [PMID: 38483883 PMCID: PMC10939219 DOI: 10.1371/journal.pone.0300282] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 02/24/2024] [Indexed: 03/17/2024] Open
Abstract
Recent transcriptomic studies identified Gucy2d (encoding guanylate cyclase D) as a highly enriched gene within inhibitory dynorphin interneurons in the mouse spinal dorsal horn. To facilitate investigations into the role of the Gucy2d+ population in somatosensation, Gucy2d-cre transgenic mice were created to permit chemogenetic or optogenetic manipulation of this subset of spinal neurons. Gucy2d-cre mice created via CRISPR/Cas9 genomic knock-in were bred to mice expressing a cre-dependent reporter (either tdTomato or Sun1.GFP fusion protein), and the resulting offspring were characterized. Surprisingly, a much wider population of spinal neurons was labeled by cre-dependent reporter expression than previous mRNA-based studies would suggest. Although the cre-dependent reporter expression faithfully labeled ~75% of cells expressing Gucy2d mRNA in the adult dorsal horn, it also labeled a substantial number of additional inhibitory neurons in which no Gucy2d or Pdyn mRNA was detected. Moreover, cre-dependent reporter was also expressed in various regions of the brain, including the spinal trigeminal nucleus, cerebellum, thalamus, somatosensory cortex, and anterior cingulate cortex. Injection of AAV-CAG-FLEX-tdTomato viral vector into adult Gucy2d-cre mice produced a similar pattern of cre-dependent reporter expression in the spinal cord and brain, which excludes the possibility that the unexpected reporter-labeling of cells in the deep dorsal horn and brain was due to transient Gucy2d expression during early stages of development. Collectively, these results suggest that Gucy2d is expressed in a wider population of cells than previously thought, albeit at levels low enough to avoid detection with commonly used mRNA-based assays. Therefore, it is unlikely that these Gucy2d-cre mice will permit selective manipulation of inhibitory signaling mediated by spinal dynorphin interneurons, but this novel cre driver line may nevertheless be useful to target a broader population of inhibitory spinal dorsal horn neurons.
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Affiliation(s)
- Elizabeth K. Serafin
- Pain Research Center, Department of Anesthesiology, University of Cincinnati Medical Center, Cincinnati, OH, USA
| | - Judy J. Yoo
- Pain Research Center, Department of Anesthesiology, University of Cincinnati Medical Center, Cincinnati, OH, USA
- Medical Scientist Training Program, University of Cincinnati, Cincinnati, OH, USA
| | - Jie Li
- Pain Research Center, Department of Anesthesiology, University of Cincinnati Medical Center, Cincinnati, OH, USA
| | - Xinzhong Dong
- Departments of Neuroscience, Neurosurgery and Dermatology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Mark L. Baccei
- Pain Research Center, Department of Anesthesiology, University of Cincinnati Medical Center, Cincinnati, OH, USA
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4
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Kintos DP, Salagiannis K, Sgouros A, Nikolaropoulos SS, Topouzis S, Fousteris MA. Identification of new multi-substituted 1H-pyrazolo[3,4-c]pyridin-7(6H)-ones as soluble guanylyl cyclase (sGC) stimulators with vasoprotective and anti-inflammatory activities. Bioorg Chem 2024; 144:107170. [PMID: 38335755 DOI: 10.1016/j.bioorg.2024.107170] [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: 10/20/2023] [Revised: 01/24/2024] [Accepted: 01/30/2024] [Indexed: 02/12/2024]
Abstract
Herein, we describe the rational design, synthesis and in vitro functional characterization of new heme-dependent, direct soluble guanylyl cyclase (sGC) agonists. These new compounds bear a 1H-pyrazolo[3,4-c]pyridin-7(6H)-one skeleton, modified to enable efficient sGC binding and stimulation. To gain insights into structure-activity relationships, the N6-alkylation of the skeleton was explored, while a pyrimidine ring, substituted with various C5'-polar groups, was installed at position C3. Among the newly synthesized 1H-pyrazolo[3,4-c]pyridin-7(6H)-ones, derivatives 14b, 15b and 16a display characteristic features of sGC "stimulators" in A7r5 vascular smooth muscle cells in vitro. They strongly synergize with the NO donor, sodium nitroprusside (SNP) in inducing cGMP generation in a manner that requires the presence of a reduced heme moiety associated with sGC, and elevate the cGMP-responsive phosphorylation of the protein VASP at Ser239. In line with their sGC stimulating capacity, docking calculations of derivatives 16a, 15(a-c) on a cryo-EM structure of human sGC (hsGC) in an ΝΟ-activated state indicated the implication of 1H-pyrazolo[3,4-c]pyridin-7(6H)-one skeleton in efficient bonding interactions with the recently identified region that binds known sGC stimulators, while the presence of either a N6-H or N6-methyl group pointed to enhanced binding affinity. Moreover, the in vitro functional effects of our newly identified sGC stimulators were compatible with a beneficial role in vascular homeostasis. Specifically, derivative 14b reduced A7r5 cell proliferation, while 16a dampened the expression of adhesion molecules ICAM-1 and P/E-Selectin in Human Umbilical Vein Endothelial Cells (HUVECs), as well as the subsequent adhesion of U937 leukocytes to the HUVECs, triggered by tumor necrosis factor alpha (TNF-α) or interleukin-1 beta (IL-1β). The fact that these compounds elevate cGMP only in the presence of NO may indicate a novel way of interaction with the enzyme and may make them less prone than other direct sGC agonists to induce characteristic hypotension in vivo.
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Affiliation(s)
| | - Konstantinos Salagiannis
- Laboratory of Molecular Pharmacology, Department of Pharmacy, University of Patras, Patras, GR-26500, Greece
| | - Antonis Sgouros
- Laboratory of Medicinal Chemistry, Department of Pharmacy, University of Patras, Patras, GR-26500, Greece
| | - Sotiris S Nikolaropoulos
- Laboratory of Medicinal Chemistry, Department of Pharmacy, University of Patras, Patras, GR-26500, Greece
| | - Stavros Topouzis
- Laboratory of Molecular Pharmacology, Department of Pharmacy, University of Patras, Patras, GR-26500, Greece.
| | - Manolis A Fousteris
- Laboratory of Medicinal Chemistry, Department of Pharmacy, University of Patras, Patras, GR-26500, Greece.
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Garcia J, Daniels J, Lee Y, Zhu I, Cheng K, Liu Q, Goodman D, Burnett C, Law C, Thienpont C, Alavi J, Azimi C, Montgomery G, Roybal KT, Choi J. Naturally occurring T cell mutations enhance engineered T cell therapies. Nature 2024; 626:626-634. [PMID: 38326614 DOI: 10.1038/s41586-024-07018-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 01/02/2024] [Indexed: 02/09/2024]
Abstract
Adoptive T cell therapies have produced exceptional responses in a subset of patients with cancer. However, therapeutic efficacy can be hindered by poor T cell persistence and function1. In human T cell cancers, evolution of the disease positively selects for mutations that improve fitness of T cells in challenging situations analogous to those faced by therapeutic T cells. Therefore, we reasoned that these mutations could be co-opted to improve T cell therapies. Here we systematically screened the effects of 71 mutations from T cell neoplasms on T cell signalling, cytokine production and in vivo persistence in tumours. We identify a gene fusion, CARD11-PIK3R3, found in a CD4+ cutaneous T cell lymphoma2, that augments CARD11-BCL10-MALT1 complex signalling and anti-tumour efficacy of therapeutic T cells in several immunotherapy-refractory models in an antigen-dependent manner. Underscoring its potential to be deployed safely, CARD11-PIK3R3-expressing cells were followed up to 418 days after T cell transfer in vivo without evidence of malignant transformation. Collectively, our results indicate that exploiting naturally occurring mutations represents a promising approach to explore the extremes of T cell biology and discover how solutions derived from evolution of malignant T cells can improve a broad range of T cell therapies.
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MESH Headings
- Humans
- CARD Signaling Adaptor Proteins/genetics
- CARD Signaling Adaptor Proteins/metabolism
- CD4-Positive T-Lymphocytes/immunology
- CD4-Positive T-Lymphocytes/metabolism
- Cytokines/biosynthesis
- Cytokines/immunology
- Cytokines/metabolism
- Evolution, Molecular
- Guanylate Cyclase/genetics
- Guanylate Cyclase/metabolism
- Immunotherapy, Adoptive/methods
- Lymphoma, T-Cell, Cutaneous/genetics
- Lymphoma, T-Cell, Cutaneous/immunology
- Lymphoma, T-Cell, Cutaneous/pathology
- Lymphoma, T-Cell, Cutaneous/therapy
- Mutation
- Phosphatidylinositol 3-Kinases
- Signal Transduction/genetics
- T-Lymphocytes/immunology
- T-Lymphocytes/metabolism
- T-Lymphocytes/transplantation
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Affiliation(s)
- Julie Garcia
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA, USA
- Parker Institute for Cancer Immunotherapy, San Francisco, CA, USA
- Moonlight Bio, Seattle, WA, USA
| | - Jay Daniels
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA, USA
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- Moonlight Bio, Seattle, WA, USA
| | - Yujin Lee
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Iowis Zhu
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA, USA
- Parker Institute for Cancer Immunotherapy, San Francisco, CA, USA
| | - Kathleen Cheng
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Qing Liu
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Daniel Goodman
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA, USA
- Parker Institute for Cancer Immunotherapy, San Francisco, CA, USA
| | - Cassandra Burnett
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA, USA
- Parker Institute for Cancer Immunotherapy, San Francisco, CA, USA
| | - Calvin Law
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Chloë Thienpont
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA, USA
| | - Josef Alavi
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA, USA
| | - Camillia Azimi
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA, USA
- Parker Institute for Cancer Immunotherapy, San Francisco, CA, USA
| | - Garrett Montgomery
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA, USA
| | - Kole T Roybal
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA, USA.
- Parker Institute for Cancer Immunotherapy, San Francisco, CA, USA.
- Chan Zuckerberg Biohub, San Francisco, CA, USA.
- Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, San Francisco, CA, USA.
- Department of Anesthesia, University of California, San Francisco, San Francisco, CA, USA.
- Gladstone-UCSF Institute for Genomic Immunology, San Francisco, CA, USA.
- UCSF Cell Design Institute, San Francisco, CA, USA.
| | - Jaehyuk Choi
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
- Center for Synthetic Biology, Northwestern University, Evanston, IL, USA.
- Center for Human Immunobiology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
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Benza RL, Grünig E, Sandner P, Stasch JP, Simonneau G. The nitric oxide-soluble guanylate cyclase-cGMP pathway in pulmonary hypertension: from PDE5 to soluble guanylate cyclase. Eur Respir Rev 2024; 33:230183. [PMID: 38508664 PMCID: PMC10957071 DOI: 10.1183/16000617.0183-2023] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 01/18/2024] [Indexed: 03/22/2024] Open
Abstract
The nitric oxide (NO)-soluble guanylate cyclase (sGC)-cyclic guanosine monophosphate (cGMP) pathway plays a key role in the pathogenesis of pulmonary hypertension (PH). Targeted treatments include phosphodiesterase type 5 inhibitors (PDE5i) and sGC stimulators. The sGC stimulator riociguat is approved for the treatment of pulmonary arterial hypertension (PAH) and chronic thromboembolic pulmonary hypertension (CTEPH). sGC stimulators have a dual mechanism of action, enhancing the sGC response to endogenous NO and directly stimulating sGC, independent of NO. This increase in cGMP production via a dual mechanism differs from PDE5i, which protects cGMP from degradation by PDE5, rather than increasing its production. sGC stimulators may therefore have the potential to increase cGMP levels under conditions of NO depletion that could limit the effectiveness of PDE5i. Such differences in mode of action between sGC stimulators and PDE5i could lead to differences in treatment efficacy between the classes. In addition to vascular effects, sGC stimulators have the potential to reduce inflammation, angiogenesis, fibrosis and right ventricular hypertrophy and remodelling. In this review we describe the evolution of treatments targeting the NO-sGC-cGMP pathway, with a focus on PH.
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Affiliation(s)
| | - Ekkehard Grünig
- Pulmonary Hypertension Unit, Thoraxklinik at Heidelberg University Hospital Heidelberg, Heidelberg, Germany
| | - Peter Sandner
- Bayer AG, Wuppertal, Germany
- Institute of Pharmacology, Hannover Medical School, Hannover, Germany
| | - Johannes-Peter Stasch
- Bayer AG, Wuppertal, Germany
- Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Halle, Germany
| | - Gérald Simonneau
- Centre de Référence de l'Hypertension Pulmonaire Sévère, CHU Kremlin Bicêtre, Kremlin Bicêtre, France
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Egbert JR, Silbern I, Uliasz TF, Lowther KM, Yee SP, Urlaub H, Jaffe LA. Phosphatases modified by LH signaling in ovarian follicles: testing their role in regulating the NPR2 guanylyl cyclase†. Biol Reprod 2024; 110:102-115. [PMID: 37774352 PMCID: PMC10790345 DOI: 10.1093/biolre/ioad130] [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] [Indexed: 10/01/2023] Open
Abstract
In response to luteinizing hormone (LH), multiple proteins in rat and mouse granulosa cells are rapidly dephosphorylated, but the responsible phosphatases remain to be identified. Because the phosphorylation state of phosphatases can regulate their interaction with substrates, we searched for phosphatases that might function in LH signaling by using quantitative mass spectrometry. We identified all proteins in rat ovarian follicles whose phosphorylation state changed detectably in response to a 30-min exposure to LH, and within this list, identified protein phosphatases or phosphatase regulatory subunits that showed changes in phosphorylation. Phosphatases in the phosphoprotein phosphatase (PPP) family were of particular interest because of their requirement for dephosphorylating the natriuretic peptide receptor 2 (NPR2) guanylyl cyclase in the granulosa cells, which triggers oocyte meiotic resumption. Among the PPP family regulatory subunits, PPP1R12A and PPP2R5D showed the largest increases in phosphorylation, with 4-10 fold increases in signal intensity on several sites. Although follicles from mice in which these phosphorylations were prevented by serine-to-alanine mutations in either Ppp1r12a or Ppp2r5d showed normal LH-induced NPR2 dephosphorylation, these regulatory subunits and others could act redundantly to dephosphorylate NPR2. Our identification of phosphatases and other proteins whose phosphorylation state is rapidly modified by LH provides clues about multiple signaling pathways in ovarian follicles.
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Affiliation(s)
- Jeremy R Egbert
- Department of Cell Biology, University of Connecticut Health Center, Farmington, CT, USA
| | - Ivan Silbern
- Bioanalytical Mass Spectrometry Group, Max Planck Institute for Multidisciplinary Sciences, Goettingen, Germany
- Institute of Clinical Chemistry, University Medical Center Goettingen, Goettingen, Germany
| | - Tracy F Uliasz
- Department of Cell Biology, University of Connecticut Health Center, Farmington, CT, USA
| | - Katie M Lowther
- Department of Cell Biology, University of Connecticut Health Center, Farmington, CT, USA
- Center for Mouse Genome Modification, University of Connecticut Health Center, Farmington CT, USA
| | - Siu-Pok Yee
- Department of Cell Biology, University of Connecticut Health Center, Farmington, CT, USA
- Center for Mouse Genome Modification, University of Connecticut Health Center, Farmington CT, USA
| | - Henning Urlaub
- Bioanalytical Mass Spectrometry Group, Max Planck Institute for Multidisciplinary Sciences, Goettingen, Germany
- Institute of Clinical Chemistry, University Medical Center Goettingen, Goettingen, Germany
- Cluster of Excellence “Multiscale Bioimaging: From Molecular Machines to Networks of Excitable Cells” (MBExC), University of Göttingen, Göttingen, Germany
| | - Laurinda A Jaffe
- Department of Cell Biology, University of Connecticut Health Center, Farmington, CT, USA
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8
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Mitrokhin VM, Kamkina OV, Kamkin AG, Rodina AS, Zolotareva AD, Zolotarev VI, Kazansky VE, Gorbacheva LR, Bilichenko AS, Shileiko SA, Mladenov MI. Simulated Microgravity and Hypergravity Affect the Expression Level of Soluble Guanylate Cyclase, Adenylate Cyclase, and Phosphodiesterase Genesin Rat Ventricular Cardiomyocytes. Bull Exp Biol Med 2024; 176:359-362. [PMID: 38342810 DOI: 10.1007/s10517-024-06024-z] [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: 07/18/2023] [Indexed: 02/13/2024]
Abstract
Ion channels activity is regulated through soluble guanylate cyclase (sGC) and adenylate cyclase (AC) pathways, while phosphodiesterases (PDE) control the intracellular levels of cAMP and cGMP. Here we applied RNA transcriptome sequencing to study changes in the gene expression of the sGC, AC, and PDE isoforms in isolated rat ventricular cardiomyocytes under conditions of microgravity and hypergravity. Our results demonstrate that microgravity reduces the expression of sGC isoform genes, while hypergravity increases their expression. For a subset of AC isoforms, gene expression either increased or decreased under both microgravity and hypergravity conditions. The expression of genes encoding 10 PDE isoforms decreased under microgravity, but increased under hypergravity. However, under both microgravity and hypergravity, the gene expression increased for 7 PDE isoforms and decreased for 3 PDE isoforms. Overall, our findings indicate specific gravity-dependent changes in the expression of genes of isoforms associated with the studied enzymes.
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Affiliation(s)
- V M Mitrokhin
- Pirogov Russian National Research Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
| | - O V Kamkina
- Pirogov Russian National Research Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
| | - A G Kamkin
- Pirogov Russian National Research Medical University, Ministry of Health of the Russian Federation, Moscow, Russia.
| | - A S Rodina
- Pirogov Russian National Research Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
| | - A D Zolotareva
- Pirogov Russian National Research Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
| | - V I Zolotarev
- Pirogov Russian National Research Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
| | - V E Kazansky
- Pirogov Russian National Research Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
| | - L R Gorbacheva
- Pirogov Russian National Research Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
| | - A S Bilichenko
- Pirogov Russian National Research Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
| | - S A Shileiko
- Pirogov Russian National Research Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
| | - M I Mladenov
- Pirogov Russian National Research Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
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9
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Mishra V, Sharma K, Bose A, Maisonneuve P, Visweswariah SS. The evolutionary divergence of receptor guanylyl cyclase C has implications for preclinical models for receptor-directed therapeutics. J Biol Chem 2024; 300:105505. [PMID: 38029963 PMCID: PMC7615481 DOI: 10.1016/j.jbc.2023.105505] [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: 10/23/2023] [Revised: 11/16/2023] [Accepted: 11/20/2023] [Indexed: 12/01/2023] Open
Abstract
Mutations in receptor guanylyl cyclase C (GC-C) cause severe gastrointestinal disease, including meconium ileus, early onset acute diarrhea, and pediatric inflammatory bowel disease that continues into adulthood. Agonists of GC-C are US Food and Drug Administration-approved drugs for the treatment of constipation and irritable bowel syndrome. Therapeutic strategies targeting GC-C are tested in preclinical mouse models, assuming that murine GC-C mimics human GC-C in its biochemical properties and downstream signaling events. Here, we reveal important differences in ligand-binding affinity and GC activity between mouse GC-C and human GC-C. We generated a series of chimeric constructs of various domains of human and mouse GC-C to show that the extracellular domain of mouse GC-C contributed to log-orders lower affinity of mouse GC-C for ligands than human GC-C. Further, the Vmax of the murine GC domain was lower than that of human GC-C, and allosteric regulation of the receptor by ATP binding to the intracellular kinase-homology domain also differed. These altered properties are reflected in the high concentrations of ligands required to elicit signaling responses in the mouse gut in preclinical models and the specificity of a GC inhibitor towards human GC-C. Therefore, our studies identify considerations in using the murine model to test molecules for therapeutic purposes that work as either agonists or antagonists of GC-C, and vaccines for the bacterial heat-stable enterotoxin that causes watery diarrhea in humans.
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Affiliation(s)
- Vishwas Mishra
- Department of Developmental Biology and Genetics, Indian Institute of Science, Bengaluru, India
| | - Kritica Sharma
- Department of Developmental Biology and Genetics, Indian Institute of Science, Bengaluru, India
| | - Avipsa Bose
- Department of Developmental Biology and Genetics, Indian Institute of Science, Bengaluru, India
| | - Pierre Maisonneuve
- UMR 5248 - Chemistry & Biology of Membranes and Nano-Objects, CNRS - Université de Bordeaux, Institut Européen de Chimie et Biologie, Pessac, France
| | - Sandhya S Visweswariah
- Department of Developmental Biology and Genetics, Indian Institute of Science, Bengaluru, India.
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10
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Luo S, Ye D, Wang Y, Liu X, Wang X, Xie L, Ji Y. Roles of Protein S-Nitrosylation in Endothelial Homeostasis and Dysfunction. Antioxid Redox Signal 2024; 40:186-205. [PMID: 37742108 DOI: 10.1089/ars.2023.0406] [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] [Indexed: 09/25/2023]
Abstract
Significance: Nitric oxide (NO) plays several distinct roles in endothelial homeostasis. Except for activating the guanylyl cyclase enzyme-dependent cyclic guanosine monophosphate signaling pathway, NO can bind reactive cysteine residues in target proteins, a process known as S-nitrosylation (SNO). SNO is proposed to explain the multiple biological functions of NO in the endothelium. Investigating the targets and mechanism of protein SNO in endothelial cells (ECs) can provide new strategies for treating endothelial dysfunction-related diseases. Recent Advances: In response to different environments, proteomics has identified multiple SNO targets in ECs. Functional studies confirm that SNO regulates NO bioavailability, inflammation, permeability, oxidative stress, mitochondrial function, and insulin sensitivity in ECs. It also influences EC proliferation, migration, apoptosis, and transdifferentiation. Critical Issues: Single-cell transcriptomic analysis of ECs isolated from different mouse tissues showed heterogeneous gene signatures. However, litter research focuses on the heterogeneous properties of SNO proteins in ECs derived from different tissues. Although metabolism reprogramming plays a vital role in endothelial functions, little is known about how protein SNO regulates metabolism reprogramming in ECs. Future Directions: Precisely deciphering the effects of protein SNO in ECs isolated from different tissues under different conditions is necessary to further characterize the relationship between protein SNO and endothelial dysfunction-related diseases. In addition, identifying SNO targets that can influence endothelial metabolic reprogramming and the underlying mechanism can offer new views on the crosstalk between metabolism and post-translational protein modification. Antioxid. Redox Signal. 40, 186-205.
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Affiliation(s)
- Shanshan Luo
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
| | - Danyu Ye
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
| | - Yu Wang
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
| | - Xingeng Liu
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
| | - Xiaoqian Wang
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
| | - Liping Xie
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
| | - Yong Ji
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), College of Pharmacy, Key Laboratory of Cardiovascular Medicine Research and Key Laboratory of Myocardial Ischemia, Chinese Ministry of Education, NHC Key Laboratory of Cell Transplantation, the Central Laboratory of the First Affiliated Hospital, Harbin Medical University, Heilongjiang, China
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11
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Sezer A, Mahmutović L, Akçeşme B. In silico study of polyphenols as potential inhibitors of MALT1 protein in non-Hodgkin lymphoma. Med Oncol 2023; 41:37. [PMID: 38155268 DOI: 10.1007/s12032-023-02261-w] [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: 10/06/2023] [Accepted: 11/16/2023] [Indexed: 12/30/2023]
Abstract
Non-Hodgkin lymphoma (NHL) is one of the most common cancer types. Deregulated signaling pathways can trigger certain NHL subtypes, including Diffuse Large B-cell lymphoma. NF-ĸB signaling pathway, which is responsible for the proliferation, growth, and survival of cells, has an essential role in lymphoma development. Although different signals control NF-ĸB activation in various lymphoid malignancies, the characteristic one is the CARD11-BCL10-MALT1 (CBM) complex. The CBM complex is responsible for the initiation of adaptive immune response. Our study is focused on the molecular docking of ten polyphenols as potential CARD11-BCL10-MALT1 complex inhibitors, essentially through MALT1 inhibition. Molecular docking was performed by Auto Dock Tools and AutoDock Vina tool, while SwissADME was used for drug-likeness and absorption, distribution, metabolism, excretion, and toxicity (ADMET) analysis of the ligands. Out of 66 ligands that were used in this study, we selected and visualized five. Selection criteria were based on the binding energy score and position of the ligands on the used protein. 2D and 3D visualizations showed interactions of ligands with the protein. Five ligands are considered potential inhibitors of MALT1, thus affecting NF-ĸB signaling pathway. However, additional in vivo and in vitro studies are required to confirm their mechanism of inhibition.
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Affiliation(s)
- Abas Sezer
- Department of Genetics and Bioengineering, Faculty of Engineering and Natural Sciences, International University of Sarajevo, Hrasnička Cesta 15, 71000, Sarajevo, Bosnia and Herzegovina
| | - Lejla Mahmutović
- Department of Genetics and Bioengineering, Faculty of Engineering and Natural Sciences, International University of Sarajevo, Hrasnička Cesta 15, 71000, Sarajevo, Bosnia and Herzegovina
| | - Betül Akçeşme
- Department of Genetics and Bioengineering, Faculty of Engineering and Natural Sciences, International University of Sarajevo, Hrasnička Cesta 15, 71000, Sarajevo, Bosnia and Herzegovina.
- Department of Basic Medical Sciences, Division of Medical Biology, University of Health Sciences, 34000, Istanbul, Turkey.
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12
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Andresen H, Pérez‐Ternero C, Robinson J, Dickey DM, Hobbs AJ, Potter LR, Levy FO, Cataliotti A, Moltzau LR. Novel enhancers of guanylyl cyclase-A activity acting via allosteric modulation. Br J Pharmacol 2023; 180:3254-3270. [PMID: 37522273 PMCID: PMC10952227 DOI: 10.1111/bph.16203] [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: 08/26/2022] [Revised: 06/30/2023] [Accepted: 07/11/2023] [Indexed: 08/01/2023] Open
Abstract
BACKGROUND AND PURPOSE Guanylyl cyclase-A (GC-A), activated by endogenous atrial natriuretic peptide (ANP) and brain natriuretic peptide (BNP), plays an important role in the regulation of cardiovascular and renal homeostasis and is an attractive drug target. Even though small molecule modulators allow oral administration and longer half-life, drug targeting of GC-A has so far been limited to peptides. Thus, in this study we aimed to develop small molecular activators of GC-A. EXPERIMENTAL APPROACH Hits were identified through high-throughput screening and optimized by in silico design. Cyclic GMP was measured in QBIHEK293A cells expressing GC-A, GC-B or chimerae of the two receptors using AlphaScreen technology. Binding assays were performed in membrane preparations or whole cells using 125 I-ANP. Vasorelaxation was measured in aortic rings isolated from Wistar rats. KEY RESULTS We have identified small molecular allosteric enhancers of GC-A, which enhanced ANP or BNP effects in cellular systems and ANP-induced vasorelaxation in rat aortic rings. The mechanism of action appears novel and not mediated through previously described allosteric binding sites. In addition, the selectivity and activity depend on a single amino acid residue that differs between the two similar receptors GC-A and GC-B. CONCLUSION AND IMPLICATIONS We describe a novel allosteric binding site on GC-A, which can be targeted by small molecules to enhance ANP and BNP effects. These compounds will be valuable tools in further development and proof-of-concept of GC-A enhancement for the potential use in cardiovascular therapy.
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Affiliation(s)
- Henriette Andresen
- Department of Pharmacology, Institute of Clinical MedicineUniversity of Oslo and Oslo University HospitalOsloNorway
- Institute for Experimental Medical ResearchUniversity of Oslo and Oslo University HospitalOsloNorway
| | - Cristina Pérez‐Ternero
- William Harvey Research Institute, Barts & The London School of Medicine and DentistryQueen Mary University of LondonLondonUK
| | - Jerid Robinson
- Department of Biochemistry, Molecular Biology, and BiophysicsUniversity of Minnesota Medical SchoolMinneapolisMinnesotaUSA
| | - Deborah M. Dickey
- Department of Biochemistry, Molecular Biology, and BiophysicsUniversity of Minnesota Medical SchoolMinneapolisMinnesotaUSA
| | - Adrian J. Hobbs
- William Harvey Research Institute, Barts & The London School of Medicine and DentistryQueen Mary University of LondonLondonUK
| | - Lincoln R. Potter
- Department of Biochemistry, Molecular Biology, and BiophysicsUniversity of Minnesota Medical SchoolMinneapolisMinnesotaUSA
| | - Finn Olav Levy
- Department of Pharmacology, Institute of Clinical MedicineUniversity of Oslo and Oslo University HospitalOsloNorway
| | - Alessandro Cataliotti
- Institute for Experimental Medical ResearchUniversity of Oslo and Oslo University HospitalOsloNorway
| | - Lise Román Moltzau
- Department of Pharmacology, Institute of Clinical MedicineUniversity of Oslo and Oslo University HospitalOsloNorway
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13
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Decombis S, Bellanger C, Le Bris Y, Madiot C, Jardine J, Santos JC, Boulet D, Dousset C, Menard A, Kervoelen C, Douillard E, Moreau P, Minvielle S, Moreau-Aubry A, Tessoulin B, Roue G, Bidère N, Le Gouill S, Pellat-Deceunynck C, Chiron D. CARD11 gain of function upregulates BCL2A1 expression and promotes resistance to targeted therapies combination in B-cell lymphoma. Blood 2023; 142:1543-1555. [PMID: 37562004 DOI: 10.1182/blood.2023020211] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 07/07/2023] [Accepted: 07/07/2023] [Indexed: 08/12/2023] Open
Abstract
A strategy combining targeted therapies is effective in B-cell lymphomas (BCL), such as mantle cell lymphoma (MCL), but acquired resistances remain a recurrent issue. In this study, we performed integrative longitudinal genomic and single-cell RNA-sequencing analyses of patients with MCL who were treated with targeted therapies against CD20, BCL2, and Bruton tyrosine kinase (OAsIs trial). We revealed the emergence of subclones with a selective advantage against OAsIs combination in vivo and showed that resistant cells were characterized by B-cell receptor (BCR)-independent overexpression of NF-κB1 target genes, especially owing to CARD11 mutations. Functional studies demonstrated that CARD11 gain of function not only resulted in BCR independence but also directly increased the transcription of the antiapoptotic BCL2A1, leading to resistance against venetoclax and OAsIs combination. Based on the transcriptional profile of OAsIs-resistant subclones, we designed a 16-gene resistance signature that was also predictive for patients with MCL who were treated with conventional chemotherapy, underlying a common escape mechanism. Among druggable strategies to inhibit CARD11-dependent NF-κB1 transduction, we evaluated the selective inhibition of its essential partner MALT1. We demonstrated that MALT1 protease inhibition led to a reduction in the expression of genes involved in OAsIs resistance, including BCL2A1. Consequently, MALT1 inhibition induced synergistic cell death in combination with BCL2 inhibition, irrespective of CARD11 mutational status, both in vitro and in vivo. Taken together, our study identified mechanisms of resistance to targeted therapies and provided a novel strategy to overcome resistance in aggressive BCL. The OAsIs trial was registered at www.clinicaltrials.gov #NCT02558816.
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Affiliation(s)
- Salomé Decombis
- Hematology Department, Nantes Université, INSERM, CNRS, Université d'Angers, CRCI2NA, Nantes, France
| | - Celine Bellanger
- Hematology Department, Nantes Université, INSERM, CNRS, Université d'Angers, CRCI2NA, Nantes, France
| | - Yannick Le Bris
- Hematology Department, Nantes Université, Centre Hospitalier Universitaire de Nantes, INSERM, CNRS, Université d'Angers, CRCI2NA, Nantes, France
| | - Candice Madiot
- Hematology Department, Nantes Université, INSERM, CNRS, Université d'Angers, CRCI2NA, Nantes, France
| | - Jane Jardine
- Hematology Department, Nantes Université, INSERM, CNRS, Université d'Angers, CRCI2NA, Nantes, France
| | | | - Delphine Boulet
- Hematology Department, Nantes Université, INSERM, CNRS, Université d'Angers, CRCI2NA, Nantes, France
| | - Christelle Dousset
- Hematology Department, Nantes Université, INSERM, CNRS, Université d'Angers, CRCI2NA, Nantes, France
| | - Audrey Menard
- Hematology Department, Nantes Université, Centre Hospitalier Universitaire de Nantes, INSERM, CNRS, Université d'Angers, CRCI2NA, Nantes, France
| | - Charlotte Kervoelen
- Therassay (Onco-Hemato) Core Facility, Nantes Université, Capacités, Nantes, France
| | - Elise Douillard
- Hematology Department, Nantes Université, INSERM, CNRS, Université d'Angers, CRCI2NA, Nantes, France
| | - Philippe Moreau
- Hematology Department, Nantes Université, Centre Hospitalier Universitaire de Nantes, INSERM, CNRS, Université d'Angers, CRCI2NA, Nantes, France
| | - Stephane Minvielle
- Hematology Department, Nantes Université, INSERM, CNRS, Université d'Angers, CRCI2NA, Nantes, France
| | - Agnes Moreau-Aubry
- Hematology Department, Nantes Université, INSERM, CNRS, Université d'Angers, CRCI2NA, Nantes, France
| | - Benoit Tessoulin
- Hematology Department, Nantes Université, Centre Hospitalier Universitaire de Nantes, INSERM, CNRS, Université d'Angers, CRCI2NA, Nantes, France
| | - Gael Roue
- Lymphoma Translational Group, Josep Carreras Leukaemia Research Institute, Badalona, Spain
| | - Nicolas Bidère
- Hematology Department, Nantes Université, INSERM, CNRS, Université d'Angers, CRCI2NA, Nantes, France
| | | | | | - David Chiron
- Hematology Department, Nantes Université, INSERM, CNRS, Université d'Angers, CRCI2NA, Nantes, France
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14
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Olivencia MA, Gil de Biedma-Elduayen L, Giménez-Gómez P, Barreira B, Fernández A, Angulo J, Colado MI, O'Shea E, Perez-Vizcaino F. Oxidized soluble guanylyl cyclase causes erectile dysfunction in alcoholic mice. Br J Pharmacol 2023; 180:2361-2376. [PMID: 37021655 DOI: 10.1111/bph.16087] [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: 07/20/2022] [Revised: 03/13/2023] [Accepted: 04/03/2023] [Indexed: 04/07/2023] Open
Abstract
BACKGROUND AND PURPOSE Alcohol abuse has been associated with erectile dysfunction (ED), but the implicated molecular mechanisms are unresolved. This study analyses the role of alterations in soluble guanylyl cyclase (sGC) in ED. EXPERIMENTAL APPROACH ED was analysed in adult male C57BL/6J mice subjected to the Chronic Intermittent Ethanol (CIE) paradigm. Erectile function was assessed in anaesthetised mice in vivo by evaluating intracavernosal pressure (ICP) and in vitro in isolated mice corpora cavernosa (CC) mounted in a myograph. Protein expression and reactive oxygen species were analysed by western blot and dihydroethidium staining, respectively. KEY RESULTS In CIE mice, we observed a significant decrease in the relaxant response of the CC to stimulation of NO release from nitrergic nerves by electrical field stimulation, to NO release from endothelial cells by acetylcholine, to the PDE5 inhibitor sildenafil, and to the sGC stimulator riociguat. Conversely, the response to the sGC activator cinaciguat, whose action is independent of the oxidation state of sGC, was significantly enhanced in these CC. The responses to adenylyl cyclase stimulation with forskolin were unchanged. We found an increase in reactive oxygen species in the CC from CIE mice as well as an increase in CYP2E1 and NOX2 protein expression. In vivo pre-treatment with tempol prevented alcohol-induced erectile dysfunction. CONCLUSIONS AND IMPLICATIONS Our results demonstrate that alcoholic mice show ED in vitro and in vivo due to an alteration in the redox state of sGC and suggest that sGC activators may be effective in ED associated with alcoholism.
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Affiliation(s)
- Miguel A Olivencia
- Departamento de Farmacologia y Toxicologia, Facultad de Medicina, Universidad Complutense, Madrid, Spain
- CIBER Enfermedades Respiratorias, Madrid, Spain
- Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - Leticia Gil de Biedma-Elduayen
- Departamento de Farmacologia y Toxicologia, Facultad de Medicina, Universidad Complutense, Madrid, Spain
- Instituto de Investigación Sanitaria Hospital 12 de Octubre, Madrid, Spain
- Red de Investigación en Atención Primaria de Adicciones del Instituto de Salud Carlos III, Madrid, Spain
- Instituto Universitario de Investigación Neuroquímica (IUIN), Facultad de Medicina, Universidad Complutense, Madrid, Spain
| | - Pablo Giménez-Gómez
- Departamento de Farmacologia y Toxicologia, Facultad de Medicina, Universidad Complutense, Madrid, Spain
- Instituto de Investigación Sanitaria Hospital 12 de Octubre, Madrid, Spain
- Red de Investigación en Atención Primaria de Adicciones del Instituto de Salud Carlos III, Madrid, Spain
- Instituto Universitario de Investigación Neuroquímica (IUIN), Facultad de Medicina, Universidad Complutense, Madrid, Spain
| | - Bianca Barreira
- Departamento de Farmacologia y Toxicologia, Facultad de Medicina, Universidad Complutense, Madrid, Spain
- CIBER Enfermedades Respiratorias, Madrid, Spain
- Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - Argentina Fernández
- Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Madrid, Spain
- Servicio de Histología-Investigación, Unidad de Investigación Traslacional en Cardiología (IRYCIS-UFV), Hospital Universitario Ramón y Cajal, Madrid, Spain
| | - Javier Angulo
- Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Madrid, Spain
- Servicio de Histología-Investigación, Unidad de Investigación Traslacional en Cardiología (IRYCIS-UFV), Hospital Universitario Ramón y Cajal, Madrid, Spain
| | - Maria Isabel Colado
- Departamento de Farmacologia y Toxicologia, Facultad de Medicina, Universidad Complutense, Madrid, Spain
- Instituto de Investigación Sanitaria Hospital 12 de Octubre, Madrid, Spain
- Red de Investigación en Atención Primaria de Adicciones del Instituto de Salud Carlos III, Madrid, Spain
- Instituto Universitario de Investigación Neuroquímica (IUIN), Facultad de Medicina, Universidad Complutense, Madrid, Spain
| | - Esther O'Shea
- Departamento de Farmacologia y Toxicologia, Facultad de Medicina, Universidad Complutense, Madrid, Spain
- Instituto de Investigación Sanitaria Hospital 12 de Octubre, Madrid, Spain
- Red de Investigación en Atención Primaria de Adicciones del Instituto de Salud Carlos III, Madrid, Spain
- Instituto Universitario de Investigación Neuroquímica (IUIN), Facultad de Medicina, Universidad Complutense, Madrid, Spain
| | - Francisco Perez-Vizcaino
- Departamento de Farmacologia y Toxicologia, Facultad de Medicina, Universidad Complutense, Madrid, Spain
- CIBER Enfermedades Respiratorias, Madrid, Spain
- Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
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15
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Sugioka S, Yamada H, Ishii A, Kato Y, Yamada R, Mori KP, Ohno S, Handa T, Ikushima A, Ishimura T, Osaki K, Tokudome T, Matsusaka T, Nebreda AR, Yanagita M, Yokoi H. Dual deletion of guanylyl cyclase-A and p38 mitogen-activated protein kinase in podocytes with aldosterone administration causes glomerular intra-capillary thrombi. Kidney Int 2023; 104:508-525. [PMID: 37356621 DOI: 10.1016/j.kint.2023.06.007] [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: 07/05/2022] [Revised: 04/27/2023] [Accepted: 06/02/2023] [Indexed: 06/27/2023]
Abstract
Natriuretic peptides exert not only blood-lowering but also kidney-protective effects through guanylyl cyclase-A (GC-A), a natriuretic peptide receptor. Signaling through GC-A has been shown to protect podocytes from aldosterone-induced glomerular injury, and a p38 mitogen-activated protein kinase (MAPK) inhibitor reduced glomerular injury in aldosterone-infused podocyte-specific GC-A knockout mice. To explore the role of p38 MAPK in podocytes, we constructed podocyte-specific p38 MAPK and GC-A double knockout mice (pod-double knockout mice). Unexpectedly, aldosterone-infused and high salt-fed (B-ALDO)-treated pod-double knockout mice resulted in elevated serum creatinine, massive albuminuria, macrophage infiltration, foot process effacement, nephrin and podocin reduction, and additionally, intra-capillary fibrin thrombi, indicating endothelial injury. Microarray analysis showed increased plasminogen activator inhibitor-1 (PAI-1) in glomeruli of B-ALDO-treated pod-double knockout mice. In B-ALDO-treated pod-double knockout mice, PAI-1 increased in podocytes, and treatment with PAI-1 neutralizing antibody ameliorated intra-capillary thrombus formation. In vitro, deletion of p38 MAPK by the CRISPR/Cas9 system and knockdown of GC-A in human cultured podocytes upregulated PAI-1 and transforming growth factor- β1 (TGF-β1). When p38 MAPK knockout podocytes, transfected with a small interfering RNA to suppress GC-A, were co-cultured with glomerular endothelial cells in a transwell system, the expression of TGF-β1 was increased in glomerular endothelial cells. PAI-1 inhibition ameliorated both podocyte and endothelial injury in the transwell system signifying elevated PAI-1 in podocytes is a factor disrupting normal podocyte-endothelial crosstalk. Thus, our results indicate that genetic dual deletion of p38 MAPK and GC-A in podocytes accelerates both podocyte and endothelial injuries, suggesting these two molecules play indispensable roles in podocyte function.
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Affiliation(s)
- Sayaka Sugioka
- Department of Nephrology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hiroyuki Yamada
- Department of Nephrology, Graduate School of Medicine, Kyoto University, Kyoto, Japan; Department of Primary Care and Emergency Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Akira Ishii
- Department of Nephrology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Yukiko Kato
- Department of Nephrology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Ryo Yamada
- Department of Nephrology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Keita P Mori
- Department of Nephrology, Graduate School of Medicine, Kyoto University, Kyoto, Japan; Department of Nephrology and Dialysis, Medical Research Institute KITANO HOSPITAL, PIIF Tazuke-Kofukai, Osaka, Japan
| | - Shoko Ohno
- Department of Nephrology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Takaya Handa
- Department of Nephrology, Graduate School of Medicine, Kyoto University, Kyoto, Japan; Department of Nephrology and Dialysis, Medical Research Institute KITANO HOSPITAL, PIIF Tazuke-Kofukai, Osaka, Japan
| | - Akie Ikushima
- Department of Nephrology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Takuya Ishimura
- Department of Nephrology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Keisuke Osaki
- Department of Nephrology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Takeshi Tokudome
- Department of Pharmacology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Taiji Matsusaka
- Department of Basic Medicine, Tokai University School of Medicine, Isehara, Japan
| | - Angel R Nebreda
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, and Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain
| | - Motoko Yanagita
- Department of Nephrology, Graduate School of Medicine, Kyoto University, Kyoto, Japan; Institute for the Advanced Study of Human Biology (ASHBi), Kyoto University, Kyoto, Japan
| | - Hideki Yokoi
- Department of Nephrology, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
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16
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Friebe A, Kraehling JR, Russwurm M, Sandner P, Schmidtko A. The 10th International Conference on cGMP 2022: recent trends in cGMP research and development-meeting report. Naunyn Schmiedebergs Arch Pharmacol 2023; 396:1669-1686. [PMID: 37079081 PMCID: PMC10338386 DOI: 10.1007/s00210-023-02484-8] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 03/31/2023] [Indexed: 04/21/2023]
Abstract
Increasing cGMP is a unique therapeutic principle, and drugs inhibiting cGMP-degrading enzymes or stimulating cGMP production are approved for the treatment of various diseases such as erectile dysfunction, coronary artery disease, pulmonary hypertension, chronic heart failure, irritable bowel syndrome, or achondroplasia. In addition, cGMP-increasing therapies are preclinically profiled or in clinical development for quite a broad set of additional indications, e.g., neurodegenerative diseases or different forms of dementias, bone formation disorders, underlining the pivotal role of cGMP signaling pathways. The fundamental understanding of the signaling mediated by nitric oxide-sensitive (soluble) guanylyl cyclase and membrane-associated receptor (particulate) guanylyl cyclase at the molecular and cellular levels, as well as in vivo, especially in disease models, is a key prerequisite to fully exploit treatment opportunities and potential risks that could be associated with an excessive increase in cGMP. Furthermore, human genetic data and the clinical effects of cGMP-increasing drugs allow back-translation into basic research to further learn about signaling and treatment opportunities. The biannual international cGMP conference, launched nearly 20 years ago, brings all these aspects together as an established and important forum for all topics from basic science to clinical research and pivotal clinical trials. This review summarizes the contributions to the "10th cGMP Conference on cGMP Generators, Effectors and Therapeutic Implications," which was held in Augsburg in 2022 but will also provide an overview of recent key achievements and activities in the field of cGMP research.
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Affiliation(s)
- Andreas Friebe
- Institute of Physiology, University of Würzburg, Röntgenring 9, D-97070 Würzburg, Germany
| | - Jan R. Kraehling
- Pharmaceuticals, Research and Early Development, Pharma Research Center, Bayer AG, Aprather Weg 18a, D-42096 Wuppertal, Germany
| | - Michael Russwurm
- Institute of Pharmacology, Ruhr-University Bochum, Universitätsstr. 150, D-44801 Bochum, Germany
| | - Peter Sandner
- Pharmaceuticals, Research and Early Development, Pharma Research Center, Bayer AG, Aprather Weg 18a, D-42096 Wuppertal, Germany
- Institute of Pharmacology, Hannover Medical School, Carl-Neuberg-Str. 1, D-30625 Hannover, Germany
| | - Achim Schmidtko
- Institute of Pharmacology and Clinical Pharmacy, Goethe University, Max-Von-Laue-Str. 9, D-60438 Frankfurt Am Main, Germany
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17
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Liu D, Ceddia RP, Zhang W, Shi F, Fang H, Collins S. Discovery of another mechanism for the inhibition of particulate guanylyl cyclases by the natriuretic peptide clearance receptor. Proc Natl Acad Sci U S A 2023; 120:e2307882120. [PMID: 37399424 PMCID: PMC10334801 DOI: 10.1073/pnas.2307882120] [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: 05/12/2023] [Accepted: 05/30/2023] [Indexed: 07/05/2023] Open
Abstract
The cardiac natriuretic peptides (NPs) control pivotal physiological actions such as fluid and electrolyte balance, cardiovascular homeostasis, and adipose tissue metabolism by activating their receptor enzymes [natriuretic peptide receptor-A (NPRA) and natriuretic peptide receptor-B (NPRB)]. These receptors are homodimers that generate intracellular cyclic guanosine monophosphate (cGMP). The natriuretic peptide receptor-C (NPRC), nicknamed the clearance receptor, lacks a guanylyl cyclase domain; instead, it can bind the NPs to internalize and degrade them. The conventional paradigm is that by competing for and internalizing NPs, NPRC blunts the ability of NPs to signal through NPRA and NPRB. Here we show another previously unknown mechanism by which NPRC can interfere with the cGMP signaling function of the NP receptors. By forming a heterodimer with monomeric NPRA or NPRB, NPRC can prevent the formation of a functional guanylyl cyclase domain and thereby suppress cGMP production in a cell-autonomous manner.
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Affiliation(s)
- Dianxin Liu
- Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University Medical Center, NashvilleTN37232
| | - Ryan P. Ceddia
- Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University Medical Center, NashvilleTN37232
| | - Wei Zhang
- Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University Medical Center, NashvilleTN37232
| | - Fubiao Shi
- Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University Medical Center, NashvilleTN37232
| | - Huafeng Fang
- Integrative Metabolism Program, Sanford Burnham Prebys Medical Discovery Institute, Orlando, FL32827
| | - Sheila Collins
- Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University Medical Center, NashvilleTN37232
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN37232
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18
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Cudia D, Ahoulou EO, Ames JB. Chemical shift assignments of retinal guanylyl cyclase activating protein 5 (GCAP5) with a mutation (R22A) that abolishes dimerization and enhances cyclase activation. Biomol NMR Assign 2023; 17:115-119. [PMID: 37129703 PMCID: PMC10232645 DOI: 10.1007/s12104-023-10129-3] [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] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 04/19/2023] [Indexed: 05/03/2023]
Abstract
Retinal membrane guanylyl cyclases (RetGCs) in vertebrate rod and cone photoreceptors are activated by a family of neuronal Ca2+ sensor proteins called guanylyl cyclase activating proteins (GCAP1-7). GCAP5 from zebrafish photoreceptors binds to RetGC and confers Ca2+/Fe2+-dependent regulation of RetGC enzymatic activity that promotes the recovery phase of visual phototransduction. We report NMR chemical shift assignments of GCAP5 with a R22A mutation (called GCAP5R22A) that abolishes protein dimerization and activates RetGC with 3-fold higher activity than that of wild type GCAP5 (BMRB No. 51,783).
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Affiliation(s)
- Diana Cudia
- Department of Chemistry, University of California, Davis, CA, 95616, USA
| | - Effibe O Ahoulou
- Department of Chemistry, University of California, Davis, CA, 95616, USA
| | - James B Ames
- Department of Chemistry, University of California, Davis, CA, 95616, USA.
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19
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Tang J, Zhang Y, Zhang Z, Tao J, Wu J, Zheng Q, Xu T, Li N, Xu Z. Specific dilation pattern in placental circulation and the NO/sGC role in preeclampsia placental vessels. Front Endocrinol (Lausanne) 2023; 14:1182636. [PMID: 37293496 PMCID: PMC10244738 DOI: 10.3389/fendo.2023.1182636] [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] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 05/09/2023] [Indexed: 06/10/2023] Open
Abstract
Objective Endothelial functions in controlling blood flow in placental circulation are still unclear. The present study compares vascular dilations between placental circulation and other vessels, as well as between normal and preeclampsia placental vessels. Methods Placental, umbilical, and other vessels (cerebral and mesenteric arteries) were collected from humans, sheep, and rats. Vasodilation was tested by JZ101 and DMT. Q-PCR, Western blot, and Elisa were used for molecular experiments. Results Endothelium-dependent/derived vasodilators, including acetylcholine, bradykinin, prostacyclin, and histamine, mediated no or minimal dilation in placental circulation, which was different from that in other vessels in sheep and rats. There were lower mRNA expressions of muscarinic receptors, histamine receptors, bradykinin receptor 2, endothelial nitric oxide synthesis (eNOS), and less nitric oxide (NO) in human umbilical vessels when compared with placental vessels. Exogenous NO donors (sodium nitroprusside, SNP) and soluble guanylate cyclase (sGC) activators (Bay41-2272) decreased the baseline of vessel tone in placental circulation in humans, sheep, and rats, but not in other arteries. The sGC inhibitor ODQ suppressed the reduced baseline caused by the SNP. The decreased baseline by SNP or Bay41-2272 was higher in placental vessels than in umbilical vessels, suggesting that the role of NO/sGC is more important in the placenta. NO concentrations in preeclampsia placental vessels were lower than those in control, while no significant change was found in umbilical plasma between the two groups. eNOS expression was similar between normal and preeclampsia placental vessels, but phosphorylated eNOS levels were significantly lower in preeclampsia. Following serotonin, SNP or Bay41-2272-mediated dilations were weaker in preeclampsia placental vessels. The decreased amplitude of SNP- or Bay41-2272 at baseline was smaller in preeclampsia. The decreased amplitudes of ODQ + SNP were comparable between the two groups. Despite higher beta sGC expression, sGC activity in the preeclampsia placenta was lower. Conclusion This study demonstrated that receptor-mediated endothelium-dependent dilation in placental circulation was significantly weaker than other vessels in various species. The results, showed firstly, that exogenous NO played a role in regulating the baseline tone of placental circulation via sGC. Lower NO production and decreased NO/sGC could be one of the reasons for preeclampsia. The findings contribute to understanding specific features of placental circulation and provide information about preeclampsia in placental vessels.
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Affiliation(s)
- Jiaqi Tang
- Institute for Fetology, First Affiliated Hospital of Soochow University, Jiangsu, China
| | - Yumeng Zhang
- Institute for Fetology, First Affiliated Hospital of Soochow University, Jiangsu, China
| | - Ze Zhang
- Institute for Fetology, First Affiliated Hospital of Soochow University, Jiangsu, China
| | - Jianying Tao
- Suzhou Municipal Hospital, the Affiliated Suzhou Hospital of Nanjing Medical University, Jiangsu, China
| | - Jue Wu
- Obstetrics and Gynecology, Dushu Lake Hospital Affiliated to Soochow University, Jiangsu, China
| | - Qiutong Zheng
- Institute for Fetology, First Affiliated Hospital of Soochow University, Jiangsu, China
| | - Ting Xu
- Institute for Fetology, First Affiliated Hospital of Soochow University, Jiangsu, China
| | - Na Li
- Maternal and Child Health Care Hospital of Wuxi, Jiangsu, China
| | - Zhice Xu
- Institute for Fetology, First Affiliated Hospital of Soochow University, Jiangsu, China
- Maternal and Child Health Care Hospital of Wuxi, Jiangsu, China
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20
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Wittenborn EC, Thomas WC, Houghton KA, Wirachman ES, Wu Y, Marletta MA. Role of the Coiled-Coil Domain in Allosteric Activity Regulation in Soluble Guanylate Cyclase. Biochemistry 2023; 62:1568-1576. [PMID: 37129924 PMCID: PMC10686098 DOI: 10.1021/acs.biochem.3c00052] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Soluble guanylate cyclase (sGC) is the primary nitric oxide (NO) receptor in higher eukaryotes, including humans. NO-dependent signaling via sGC is associated with important physiological effects in the vascular, pulmonary, and neurological systems, and sGC itself is an established drug target for the treatment of pulmonary hypertension due to its central role in vasodilation. Despite isolation in the late 1970s, high-resolution structural information on full-length sGC remained elusive until recent cryo-electron microscopy structures were determined of the protein in both the basal unactivated state and the NO-activated state. These structures revealed large-scale conformational changes upon activation that appear to be centered on rearrangements within the coiled-coil (CC) domains in the enzyme. Here, a structure-guided approach was used to engineer constitutively unactivated and constitutively activated sGC variants through mutagenesis of the CC domains. These results demonstrate that the activation-induced conformational change in the CC domains is necessary and sufficient for determining the level of sGC activity.
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Affiliation(s)
- Elizabeth C. Wittenborn
- California Institute for Quantitative Biosciences, University of California, Berkeley, Berkeley, CA 94720, USA
| | - William C. Thomas
- California Institute for Quantitative Biosciences, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Kimberly A. Houghton
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Erika S. Wirachman
- Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Yang Wu
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Michael A. Marletta
- California Institute for Quantitative Biosciences, University of California, Berkeley, Berkeley, CA 94720, USA
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA
- Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720, USA
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21
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Ma X, Iyer SR, Ma X, Reginauld SH, Chen Y, Pan S, Zheng Y, Moroni DG, Yu Y, Zhang L, Cannone V, Chen HH, Ferrario CM, Sangaralingham SJ, Burnett JC. Evidence for Angiotensin II as a Naturally Existing Suppressor for the Guanylyl Cyclase A Receptor and Cyclic GMP Generation. Int J Mol Sci 2023; 24:8547. [PMID: 37239899 PMCID: PMC10218449 DOI: 10.3390/ijms24108547] [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: 04/10/2023] [Revised: 05/03/2023] [Accepted: 05/05/2023] [Indexed: 05/28/2023] Open
Abstract
The natriuretic peptide system (NPS) and renin-angiotensin-aldosterone system (RAAS) function oppositely at multiple levels. While it has long been suspected that angiotensin II (ANGII) may directly suppress NPS activity, no clear evidence to date supports this notion. This study was designed to systematically investigate ANGII-NPS interaction in humans, in vivo, and in vitro. Circulating atrial, b-type, and c-type natriuretic peptides (ANP, BNP, CNP), cyclic guanosine monophosphate (cGMP), and ANGII were simultaneously investigated in 128 human subjects. Prompted hypothesis was validated in vivo to determine the influence of ANGII on ANP actions. The underlying mechanisms were further explored via in vitro approaches. In humans, ANGII demonstrated an inverse relationship with ANP, BNP, and cGMP. In regression models predicting cGMP, adding ANGII levels and the interaction term between ANGII and natriuretic peptides increased the predictive accuracy of the base models constructed with either ANP or BNP, but not CNP. Importantly, stratified correlation analysis further revealed a positive association between cGMP and ANP or BNP only in subjects with low, but not high, ANGII levels. In rats, co-infusion of ANGII even at a physiological dose attenuated cGMP generation mediated by ANP infusion. In vitro, we found the suppressive effect of ANGII on ANP-stimulated cGMP requires the presence of ANGII type-1 (AT1) receptor and mechanistically involves protein kinase C (PKC), as this suppression can be substantially rescued by either valsartan (AT1 blocker) or Go6983 (PKC inhibitor). Using surface plasmon resonance (SPR), we showed ANGII has low binding affinity to the guanylyl cyclase A (GC-A) receptor compared to ANP or BNP. Our study reveals ANGII is a natural suppressor for the cGMP-generating action of GC-A via AT1/PKC dependent manner and highlights the importance of dual-targeting RAAS and NPS in maximizing beneficial properties of natriuretic peptides in cardiovascular protection.
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Affiliation(s)
- Xiao Ma
- Cardiorenal Research Laboratory, Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - Seethalakshmi R. Iyer
- Cardiorenal Research Laboratory, Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - Xiaoyu Ma
- Cardiorenal Research Laboratory, Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - Shawn H. Reginauld
- Cardiorenal Research Laboratory, Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - Yang Chen
- Cardiorenal Research Laboratory, Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - Shuchong Pan
- Cardiorenal Research Laboratory, Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - Ye Zheng
- Cardiorenal Research Laboratory, Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - Dante G. Moroni
- Cardiorenal Research Laboratory, Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - Yue Yu
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN 55902, USA
| | - Lianwen Zhang
- Department of Molecular Medicine, Mayo Clinic, Rochester, MN 55902, USA
| | - Valentina Cannone
- Cardiorenal Research Laboratory, Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN 55905, USA
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy
| | - Horng H. Chen
- Cardiorenal Research Laboratory, Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - Carlos M. Ferrario
- Department of Surgery, Wake Forest School of Medicine, Winston Salem, NC 27157, USA
| | - S. Jeson Sangaralingham
- Cardiorenal Research Laboratory, Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN 55905, USA
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN 55902, USA
| | - John C. Burnett
- Cardiorenal Research Laboratory, Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN 55905, USA
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN 55902, USA
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22
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Dai Y, Stuehr DJ. BAY58-2667 Activates Different Soluble Guanylyl Cyclase Species by Distinct Mechanisms that Indicate Its Principal Target in Cells is the Heme-Free Soluble Guanylyl Cyclase-Heat Shock Protein 90 Complex. Mol Pharmacol 2023; 103:286-296. [PMID: 36868790 PMCID: PMC10166446 DOI: 10.1124/molpharm.122.000624] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 12/14/2022] [Accepted: 02/07/2023] [Indexed: 03/05/2023] Open
Abstract
Nitric oxide (NO)-unresponsive forms of soluble guanylyl cyclase (sGC) exist naturally and in disease can disable NO-sGC-cGMP signaling. Agonists like BAY58-2667 (BAY58) target these sGC forms, but their mechanisms of action in living cells are unclear. We studied rat lung fibroblast-6 cells and human airway smooth muscle cells that naturally express sGC and HEK293 cells that we transfected to express sGC and variants. Cells were cultured to build up different forms of sGC, and we used fluorescence and FRET-based measures to monitor BAY58-driven cGMP production and any protein partner exchange or heme loss events that may occur for each sGC species. We found that: (i) BAY58 activated cGMP production by the apo-sGCβ-Hsp90 species after a 5-8 minute delay that was associated with apo-sGCβ exchanging its Hsp90 partner with an sGCα subunit. (ii) In cells containing an artificially constructed heme-free sGC heterodimer, BAY58 initiated an immediate and three times faster cGMP production. However, this behavior was not observed in cells expressing native sGC under any condition. (iii) BAY58 activated cGMP production by ferric heme sGC only after a 30-minute delay, coincident with it initiating a delayed, slow ferric heme loss from sGCβ We conclude that the kinetics favor BAY58 activation of the apo-sGCβ-Hsp90 species over the ferric heme sGC species in living cells. The protein partner exchange events driven by BAY58 account for the initial delay in cGMP production and also limit the speed of subsequent cGMP production in the cells. Our findings clarify how agonists like BAY58 may activate sGC in health and disease. SIGNIFICANCE STATEMENT: A class of agonists can activate cyclic guanosine monophosphate (cGMP) synthesis by forms of soluble guanylyl cyclase (sGC) that do not respond to NO and accumulate in disease, but the mechanisms of action are unclear. This study clarifies what forms of sGC exist in living cells, which of these can be activated by the agonists, and the mechanisms and kinetics by which each form is activated. This information may help to hasten deployment of these agonists for pharmaceutical intervention and clinical therapy.
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Affiliation(s)
- Yue Dai
- Department of Inflammation and Immunity, Lerner Research Institute, The Cleveland Clinic, Cleveland, Ohio
| | - Dennis J Stuehr
- Department of Inflammation and Immunity, Lerner Research Institute, The Cleveland Clinic, Cleveland, Ohio
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23
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Baronio M, Gazzurelli L, Rezzola S, Rossi S, Tessarin G, Marinoni M, Salpietro A, Fiore M, Moratto D, Chiarini M, Badolato R, Parolini S, Tabellini G, Lougaris V. CARD11 dominant negative mutation leads to altered human Natural Killer cell homeostasis. Immunobiology 2023; 228:152381. [PMID: 37086690 DOI: 10.1016/j.imbio.2023.152381] [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: 01/24/2023] [Revised: 03/10/2023] [Accepted: 03/28/2023] [Indexed: 04/07/2023]
Abstract
Dominant negative mutations in CARD11 have been reported in patients with immune dysregulation, severe atopic features, and variable T cell alterations. Data on Natural killer (NK) cells from affected patients are lacking. We report on a 12-year-old boy with severe atopic dermatitis, food induced anaphylaxis and hypogammaglobulinemia harbouring a novel de novo heterozygous variant c.169G > A; p.Glu57Lys in CARD11. The dominant negative effect of this mutation was confirmed on both CD4+ and CD8+. CTLA4+Foxp3+CD4+ Tregs were severely reduced. Patient's NK cells showed reduced expression of NKp46, NKG2D and CD69. Patient's CD56bright NK cells showed in vitro impaired production of IFN-γ. Steady state pS6 levels on patient's NK cells were increased and remained elevated upon IL2 + IL12 + IL18 overnight stimulation. Overall, the effect of CARD11 mutation on mTORC1 differs between T and NK cells. These findings may explain the increased susceptibility to viral infections and the reduced immune surveillance in affected patients.
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Affiliation(s)
- Manuela Baronio
- Pediatrics Clinic and "A. Nocivelli" Institute for Molecular Medicine, Department of Clinical and Experimental Sciences, University of Brescia, ASST Spedali Civili of Brescia, Brescia, Italy
| | - Luisa Gazzurelli
- Pediatrics Clinic and "A. Nocivelli" Institute for Molecular Medicine, Department of Clinical and Experimental Sciences, University of Brescia, ASST Spedali Civili of Brescia, Brescia, Italy
| | - Sara Rezzola
- Department of Molecular and Translational Medicine, University of Brescia, Italy
| | - Stefano Rossi
- Pediatrics Clinic and "A. Nocivelli" Institute for Molecular Medicine, Department of Clinical and Experimental Sciences, University of Brescia, ASST Spedali Civili of Brescia, Brescia, Italy
| | - Giulio Tessarin
- Pediatrics Clinic and "A. Nocivelli" Institute for Molecular Medicine, Department of Clinical and Experimental Sciences, University of Brescia, ASST Spedali Civili of Brescia, Brescia, Italy
| | - Maddalena Marinoni
- Paediatric Department, ASST-Sette Laghi, "F. Del Ponte" Hospital, Varese, Italy
| | - Annamaria Salpietro
- Pediatrics Clinic and "A. Nocivelli" Institute for Molecular Medicine, Department of Clinical and Experimental Sciences, University of Brescia, ASST Spedali Civili of Brescia, Brescia, Italy
| | - Michele Fiore
- Primary Care Pediatrician, Local unit ASL3 "genovese", Genova, Italy
| | - Daniele Moratto
- Flow Cytometry Laboratory, Diagnostic Department, ASST Spedali Civili, Brescia, Italy
| | - Marco Chiarini
- Flow Cytometry Laboratory, Diagnostic Department, ASST Spedali Civili, Brescia, Italy
| | - Raffaele Badolato
- Pediatrics Clinic and "A. Nocivelli" Institute for Molecular Medicine, Department of Clinical and Experimental Sciences, University of Brescia, ASST Spedali Civili of Brescia, Brescia, Italy
| | - Silvia Parolini
- Department of Molecular and Translational Medicine, University of Brescia, Italy
| | - Giovanna Tabellini
- Department of Molecular and Translational Medicine, University of Brescia, Italy
| | - Vassilios Lougaris
- Pediatrics Clinic and "A. Nocivelli" Institute for Molecular Medicine, Department of Clinical and Experimental Sciences, University of Brescia, ASST Spedali Civili of Brescia, Brescia, Italy.
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24
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Balzer MS, Pavkovic M, Frederick J, Abedini A, Freyberger A, Vienenkötter J, Mathar I, Siudak K, Eitner F, Sandner P, Grundmann M, Susztak K. Treatment effects of soluble guanylate cyclase modulation on diabetic kidney disease at single-cell resolution. Cell Rep Med 2023; 4:100992. [PMID: 37023747 PMCID: PMC10140477 DOI: 10.1016/j.xcrm.2023.100992] [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: 10/17/2022] [Revised: 01/29/2023] [Accepted: 03/14/2023] [Indexed: 04/08/2023]
Abstract
Diabetic kidney disease (DKD) is the most common cause of renal failure. Therapeutics development is hampered by our incomplete understanding of animal models on a cellular level. We show that ZSF1 rats recapitulate human DKD on a phenotypic and transcriptomic level. Tensor decomposition prioritizes proximal tubule (PT) and stroma as phenotype-relevant cell types exhibiting a continuous lineage relationship. As DKD features endothelial dysfunction, oxidative stress, and nitric oxide depletion, soluble guanylate cyclase (sGC) is a promising DKD drug target. sGC expression is specifically enriched in PT and stroma. In ZSF1 rats, pharmacological sGC activation confers considerable benefits over stimulation and is mechanistically related to improved oxidative stress regulation, resulting in enhanced downstream cGMP effects. Finally, we define sGC gene co-expression modules, which allow stratification of human kidney samples by DKD prevalence and disease-relevant measures such as kidney function, proteinuria, and fibrosis, underscoring the relevance of the sGC pathway to patients.
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Affiliation(s)
- Michael S Balzer
- Renal, Electrolyte, and Hypertension Division, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Institute for Diabetes, Obesity and Metabolism, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Nephrology and Medical Intensive Care, Charité - Universitätsmedizin Berlin, 10117 Berlin, Germany; Berlin Institute of Health at Charité - Universitätsmedizin Berlin, BIH Biomedical Innovation Academy, BIH Charité Clinician Scientist Program, 10117 Berlin, Germany
| | - Mira Pavkovic
- Bayer AG, Research and Early Development, Pharma Research Center, 42096 Wuppertal, Germany
| | - Julia Frederick
- Renal, Electrolyte, and Hypertension Division, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Institute for Diabetes, Obesity and Metabolism, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Amin Abedini
- Renal, Electrolyte, and Hypertension Division, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Institute for Diabetes, Obesity and Metabolism, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Alexius Freyberger
- Bayer AG, Research and Early Development, Pharma Research Center, 42096 Wuppertal, Germany
| | - Julia Vienenkötter
- Bayer AG, Research and Early Development, Pharma Research Center, 42096 Wuppertal, Germany
| | - Ilka Mathar
- Bayer AG, Research and Early Development, Pharma Research Center, 42096 Wuppertal, Germany
| | - Krystyna Siudak
- Bayer AG, Research and Early Development, Pharma Research Center, 42096 Wuppertal, Germany
| | - Frank Eitner
- Bayer AG, Research and Early Development, Pharma Research Center, 42096 Wuppertal, Germany; Division of Nephrology and Clinical Immunology, RWTH Aachen University, 52062 Aachen, Germany
| | - Peter Sandner
- Bayer AG, Research and Early Development, Pharma Research Center, 42096 Wuppertal, Germany; Department of Pharmacology, Hannover Medical School, 30625 Hannover, Germany
| | - Manuel Grundmann
- Bayer AG, Research and Early Development, Pharma Research Center, 42096 Wuppertal, Germany
| | - Katalin Susztak
- Renal, Electrolyte, and Hypertension Division, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Institute for Diabetes, Obesity and Metabolism, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
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Zhu C, Liang X, Chen X, Liang M, Zheng J, Wan B, Luo S. Characterizing the Specific Recognition of Xanthurenic Acid by GEP1 and GEP1-GCα Interactions in cGMP Signaling Pathway in Gametogenesis of Malaria Parasites. Int J Mol Sci 2023; 24:ijms24032561. [PMID: 36768882 PMCID: PMC9916804 DOI: 10.3390/ijms24032561] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 01/20/2023] [Accepted: 01/26/2023] [Indexed: 01/31/2023] Open
Abstract
Gametogenesis is an essential step for malaria parasite transmission and is activated in mosquito by signals including temperature drop, pH change, and mosquito-derived xanthurenic acid (XA). Recently, a membrane protein gametogenesis essential protein 1 (GEP1) was found to be responsible for sensing these signals and interacting with a giant guanylate cyclase α (GCα) to activate the cGMP-PKG-Ca2+ signaling pathway for malaria parasite gametogenesis. However, the molecular mechanisms for this process remain unclear. In this study, we used AlphaFold2 to predict the structure of GEP1 and found that it consists of a conserved N-terminal helical domain and a transmembrane domain that adopts a structure similar to that of cationic amino acid transporters. Molecular docking results showed that XA binds to GEP1 via a pocket similar to the ligand binding sites of known amino acid transporters. In addition, truncations of this N-terminal sequence significantly enhanced the expression, solubility, and stability of GEP1. In addition, we found that GEP1 interacts with GCα via its C-terminal region, which is interrupted by mutations of a few conserved residues. These findings provide further insights into the molecular mechanism for the XA recognition by GEP1 and the activation of the gametogenesis of malaria parasites through GEP1-GCα interaction.
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Affiliation(s)
- Cheng Zhu
- School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai 200240, China
| | - Xiaoge Liang
- School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai 200240, China
| | - Xu Chen
- School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai 200240, China
| | - Miaomiao Liang
- School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai 200240, China
| | - Jianting Zheng
- School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai 200240, China
| | - Bingbing Wan
- Key Laboratory of Systems Biomedicine (Ministry of Education), Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai 200240, China
- Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai 200240, China
| | - Shukun Luo
- School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai 200240, China
- Correspondence:
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Goto M, Yoshino S, Hiroshima K, Kawakami T, Murota K, Shimamoto S, Hidaka Y. The Molecular Basis of Heat-Stable Enterotoxin for Vaccine Development and Cancer Cell Detection. Molecules 2023; 28:molecules28031128. [PMID: 36770798 PMCID: PMC9920858 DOI: 10.3390/molecules28031128] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 01/19/2023] [Accepted: 01/20/2023] [Indexed: 01/24/2023] Open
Abstract
Heat-stable enterotoxin (STa) produced by Enterotoxigenic E. coli is responsible for causing acute diarrhea in infants in developing countries. However, the chemical synthesis of STa peptides with the native conformation and the correct intra-molecular disulfide bonds is a major hurdle for vaccine development. To address this issue, we herein report on the design and preparation of STa analogs and a convenient chemical method for obtaining STa molecules with the correct conformation. To develop an STa vaccine, we focused on a structure in a type II β-turn in the STa molecule and introduced a D-Lys residue as a conjugation site for carrier proteins. In addition, the -Glu-Leu- sequence in the STa molecule was replaced with a -Asp-Val- sequence to decrease the toxic activity of the peptide to make it more amenable for use in vaccinations. To solve several issues associated with the synthesis of STa, such as the formation of non-native disulfide isomers, the native disulfide pairings were regioselectively formed in a stepwise manner. A native form or topological isomer of the designed STa peptide, which possesses a right-handed or a left-handed spiral structure, respectively, were synthesized in high synthetic yields. The conformation of the synthetic STa peptide was also confirmed by CD and NMR spectroscopy. To further utilize the designed STa peptide, it was labeled with fluorescein for fluorescent detection, since recent studies have also focused on the use of STa for detecting cancer cells, such as Caco-2 and T84. The labeled STa peptide was able to specifically and efficiently detect 293T cells expressing the recombinant STa receptor (GC-C) protein and Caco-2 cells. The findings reported here provide an outline of the molecular basis for using STa for vaccine development and in the detection of cancer cells.
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Affiliation(s)
- Masaya Goto
- Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Shinya Yoshino
- Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Kyona Hiroshima
- Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Toru Kawakami
- Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Kaeko Murota
- Faculty of Life and Environmental Sciences, Shimane University, 1060 Nishikawatsu, Matsue, Shimane 690-8504, Japan
| | - Shigeru Shimamoto
- Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
- Correspondence: (S.S.); (Y.H.); Tel.: +81-6-6721-2332 (S.S.)
| | - Yuji Hidaka
- Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
- Correspondence: (S.S.); (Y.H.); Tel.: +81-6-6721-2332 (S.S.)
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Chen L, Zhou X, Deng Y, Yang Y, Chen X, Chen Q, Liu Y, Fu X, Kwan HY, You Y, Jin W, Zhao X. Zhenwu decoction ameliorates cardiac hypertrophy through activating sGC (soluble guanylate cyclase) - cGMP (cyclic guanosine monophosphate) - PKG (protein kinase G) pathway. J Ethnopharmacol 2023; 300:115705. [PMID: 36099983 DOI: 10.1016/j.jep.2022.115705] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 07/18/2022] [Revised: 09/05/2022] [Accepted: 09/06/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Zhenwu Decoction (ZWD) is a traditional Chinese medicine (TCM) formula which has wide scope of indications related to Yang deficiency and dampness retention in TCM syndrome. Cardiac hypertrophy can induce similar symptoms and signs to the clinical features of Yang deficiency and dampness retention syndrome. ZWD can increase the left ventricular ejection fraction, reduce cardiac hypertrophy of patients with chronic heart failure. However, its underlying pharmacological mechanism remains unclear. AIM OF THE STUDY The study aimed to confirm the protective effects of ZWD on cardiac hypertrophy and explore the underlying mechanisms. MATERIALS AND METHODS The potential targets and pathways of ZWD in cardiac hypertrophy were highlighted by network pharmacology and validated by mechanistic and functional studies. RESULTS Our network pharmacology analysis suggests that the protective effects of ZWD on cardiac hypertrophy are related to cyclic guanosine monophosphate (cGMP) - protein kinase G (PKG) pathway. Subsequent animal studies showed that ZWD significantly ameliorated cardiac function decline, cardiac hypertrophy, cardiac fibrosis and cardiomyocyte apoptosis. To explore the underlying mechanisms of action, we performed Western blotting, immunohistochemical analysis, and detection of inflammatory response and oxidative stress. Our results showed that ZWD activated the soluble guanylate cyclase (sGC) - cGMP - PKG signaling pathway. The sGC inhibitor ODQ that blocks the sGC-cGMP-PKG signaling pathway in zebrafish abolished the protective effects of ZWD, suggesting sGC-cGMP-PKG is the main signaling pathway mediates the protective effect of ZWD in cardiac hypertrophy. In addition, three major ingredients from ZWD, poricoic acid C, hederagenin and dehydrotumulosic acid, showed a high binding energy with prototype sGC. CONCLUSION ZWD reduces oxidative stress and inflammation and exerts cardioprotective effects by activating the sGC-cGMP-PKG signaling pathway.
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Affiliation(s)
- Liqian Chen
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, 510515, China.
| | - Xinghong Zhou
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, 510515, China.
| | - Yijian Deng
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, 510515, China.
| | - Ying Yang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, 510515, China.
| | - Xiaohu Chen
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, 510515, China.
| | - Qinghong Chen
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, 510515, China.
| | - Yanyan Liu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, 510515, China.
| | - Xiuqiong Fu
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, China.
| | - Hiu Yee Kwan
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, China.
| | - Yanting You
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, 510515, China.
| | - Wen Jin
- Department of Cardiac Intensive Care Unit, Cardiovascular Hospital, Guangdong Second Provincial General Hospital, Guangzhou, Guangdong, 510317, China.
| | - Xiaoshan Zhao
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, 510515, China.
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Laubrie JD, Bezmalinovic A, García-Herrera CM, Celentano DJ, Herrera EA, Avril S, Llanos AJ. Hyperelastic and damage properties of the hypoxic aorta treated with Cinaciguat. J Biomech 2023; 147:111457. [PMID: 36701962 DOI: 10.1016/j.jbiomech.2023.111457] [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: 05/10/2022] [Revised: 12/27/2022] [Accepted: 01/13/2023] [Indexed: 01/18/2023]
Abstract
Chronic hypoxia during gestation and postnatal period induces pulmonary hypertension, aorta stiffening and vascular remodeling. In this study, we hypothesized that a postnatal treatment with Cinaciguat, a guanylate cyclase activator, may improve the vascular function by enhancing NO-sGC pathways that induce vasodilation. To assess this, we collected aortas from six lambs gestated, born and raised at 3600 masl. Half of these lambs received a Cinaciguat postnatal treatment, while the other half was used as control (vehicle). Uniaxial tension was applied on samples of each group of aortas (control and Cinaciguat-treated) through cyclic loading. The obtained stress-stretch curves were used to identify constitutive parameters of a hyperelastic damage model. These material constants allowed us to assess the softening/dissipation behavior and to characterize the treatment effects. Results showed that Cinaciguat has an effect on the damage behavior at large strains, altering the damage onset under uniaxial tension. We conclude that Cinaciguat, as a vasodilator, can prevent the very early effects of vascular remodeling caused by perinatal hypoxia, and improve the aortic-tissue damage properties of hypoxic lambs.
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Affiliation(s)
- Joan D Laubrie
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Santiago de Chile, Santiago, Chile
| | - Alejandro Bezmalinovic
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Santiago de Chile, Santiago, Chile
| | - Claudio M García-Herrera
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Santiago de Chile, Santiago, Chile.
| | - Diego J Celentano
- Departamento de Ingeniería Mecánica y Metalúrgica, Instituto de Ingeniería Biológica y Médica, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Emilio A Herrera
- Programa de Fisiopatología, Facultad de Medicina, Instituto de Ciencias Biomédicas, Universidad de Chile, Santiago, Chile; International Center for Andean Studies (INCAS), Universidad de Chile, Putre, Chile
| | - Stéphane Avril
- Mines Saint-Etienne, Univ Jean Monnet, INSERM, U 1059 Sainbiose, F - 42023 Saint-Etienne, France
| | - Aníbal J Llanos
- Programa de Fisiopatología, Facultad de Medicina, Instituto de Ciencias Biomédicas, Universidad de Chile, Santiago, Chile; International Center for Andean Studies (INCAS), Universidad de Chile, Putre, Chile
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Pomerantz JL, Milner JD, Snow AL. Elevated IgE from attenuated CARD11 signaling: lessons from atopic mice and humans. Curr Opin Immunol 2022; 79:102255. [PMID: 36334349 PMCID: PMC10424059 DOI: 10.1016/j.coi.2022.102255] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 08/17/2022] [Accepted: 09/30/2022] [Indexed: 11/07/2022]
Abstract
CARD11 encodes a large scaffold protein responsible for integrating antigen-receptor engagement with downstream signaling to NF-kB and other outputs in lymphocytes. Over the past 10 years, several human-inborn errors of immunity have been linked to pathogenic CARD11 mutations. Most recently, severe atopic patients were discovered that carried heterozygous dominant-negative CARD11 mutations. Here, we review the mechanistic connections between attenuated CARD11 signaling, elevated IgE, and atopy, comparing and contrasting key insights from both human patients and murine models. Continued investigation of abnormal CARD11 signaling in both contexts should inform novel therapeutic strategies to combat allergic pathogenesis.
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Affiliation(s)
- Joel L Pomerantz
- Department of Biological Chemistry, Institute for Cell Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Joshua D Milner
- Department of Pediatrics, Columbia University Irving Medical Center, New York, NY, USA
| | - Andrew L Snow
- Department of Pharmacology & Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, MD, USA.
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Urdinez L, Erra L, Palma AM, Mercogliano MF, Fernandez JB, Prieto E, Goris V, Bernasconi A, Sanz M, Villa M, Bouso C, Caputi L, Quesada B, Solis D, Aguirre Bruzzo A, Katsicas MM, Galluzzo L, Weyersberg C, Bocian M, Bujan MM, Oleastro M, Almejun MB, Danielian S. Expanding spectrum, intrafamilial diversity, and therapeutic challenges from 15 patients with heterozygous CARD11-associated diseases: A single center experience. Front Immunol 2022; 13:1020927. [PMID: 36405754 PMCID: PMC9668901 DOI: 10.3389/fimmu.2022.1020927] [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] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 10/18/2022] [Indexed: 11/06/2023] Open
Abstract
CARD11-associated diseases are monogenic inborn errors of immunity involving immunodeficiency, predisposition to malignancy and immune dysregulation such as lymphoproliferation, inflammation, atopic and autoimmune manifestations. Defects in CARD11 can present as mutations that confer a complete or a partial loss of function (LOF) or contrarily, a gain of function (GOF) of the affected gene product. We report clinical characteristics, immunophenotypes and genotypes of 15 patients from our center presenting with CARD11-associated diseases. Index cases are pediatric patients followed in our immunology division who had access to next generation sequencing studies. Variant significance was defined by functional analysis in cultured cells transfected with a wild type and/or with mutated hCARD11 constructs. Cytoplasmic aggregation of CARD11 products was evaluated by immunofluorescence. Nine index patients with 9 unique heterozygous CARD11 variants were identified. At the time of the identification, 7 variants previously unreported required functional validation. Altogether, four variants showed a GOF effect as well a spontaneous aggregation in the cytoplasm, leading to B cell expansion with NF-κB and T cell anergy (BENTA) diagnosis. Additional four variants showing a LOF activity were considered as causative of CARD11-associated atopy with dominant interference of NF-kB signaling (CADINS). The remaining variant exhibited a neutral functional assay excluding its carrier from further analysis. Family segregation studies expanded to 15 individuals the number of patients presenting CARD11-associated disease. A thorough clinical, immunophenotypical, and therapeutic management evaluation was performed on these patients (5 BENTA and 10 CADINS). A remarkable variability of disease expression was clearly noted among BENTA as well as in CADINS patients, even within multiplex families. Identification of novel CARD11 variants required functional studies to validate their pathogenic activity. In our cohort BENTA phenotype exhibited a more severe and expanded clinical spectrum than previously reported, e.g., severe hematological and extra hematological autoimmunity and 3 fatal outcomes. The growing number of patients with dysmorphic facial features strengthen the inclusion of extra-immune characteristics as part of the CADINS spectrum. CARD11-associated diseases represent a challenging group of disorders from the diagnostic and therapeutic standpoint, especially BENTA cases that can undergo a more severe progression than previously described.
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Affiliation(s)
- Luciano Urdinez
- Servicio de Inmunología y Reumatología, Hospital Nacional de Pediatría Juan P. Garrahan, Buenos Aires, Argentina
| | - Lorenzo Erra
- Laboratorio de Biofisicoquímica de Proteínas, Departamento de Química Biológica, Instituto de Quimica Biologica de Facultad de Ciencias Biologicas y Naturales (IQUIBICEN), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
- Laboratorio de Genética en Endocrinología, Instituto de Biociencias, Biotecnologia y Biologia Translacional (IB3), Departamento de Fisiología, Biología Molecular y Celular, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Alejandro M. Palma
- Servicio de Inmunología y Reumatología, Hospital Nacional de Pediatría Juan P. Garrahan, Buenos Aires, Argentina
| | - María F. Mercogliano
- Laboratorio de Biofisicoquímica de Proteínas, Departamento de Química Biológica, Instituto de Quimica Biologica de Facultad de Ciencias Biologicas y Naturales (IQUIBICEN), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
- Laboratorio de Genética en Endocrinología, Instituto de Biociencias, Biotecnologia y Biologia Translacional (IB3), Departamento de Fisiología, Biología Molecular y Celular, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Julieta Belén Fernandez
- Laboratorio de Biofisicoquímica de Proteínas, Departamento de Química Biológica, Instituto de Quimica Biologica de Facultad de Ciencias Biologicas y Naturales (IQUIBICEN), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
- Laboratorio de Genética en Endocrinología, Instituto de Biociencias, Biotecnologia y Biologia Translacional (IB3), Departamento de Fisiología, Biología Molecular y Celular, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Emma Prieto
- Servicio de Inmunología y Reumatología, Hospital Nacional de Pediatría Juan P. Garrahan, Buenos Aires, Argentina
| | - Verónica Goris
- Servicio de Inmunología y Reumatología, Hospital Nacional de Pediatría Juan P. Garrahan, Buenos Aires, Argentina
| | - Andrea Bernasconi
- Servicio de Inmunología y Reumatología, Hospital Nacional de Pediatría Juan P. Garrahan, Buenos Aires, Argentina
| | - Marianela Sanz
- Servicio de Inmunología y Reumatología, Hospital Nacional de Pediatría Juan P. Garrahan, Buenos Aires, Argentina
| | - Mariana Villa
- Servicio de Inmunología y Reumatología, Hospital Nacional de Pediatría Juan P. Garrahan, Buenos Aires, Argentina
| | - Carolina Bouso
- Servicio de Inmunología y Reumatología, Hospital Nacional de Pediatría Juan P. Garrahan, Buenos Aires, Argentina
| | - Lucia Caputi
- Servicio de Inmunología y Reumatología, Hospital Nacional de Pediatría Juan P. Garrahan, Buenos Aires, Argentina
| | - Belen Quesada
- Servicio de Inmunología y Reumatología, Hospital Nacional de Pediatría Juan P. Garrahan, Buenos Aires, Argentina
| | - Daniel Solis
- Servicio de Inmunología y Reumatología, Hospital Nacional de Pediatría Juan P. Garrahan, Buenos Aires, Argentina
| | - Anabel Aguirre Bruzzo
- Servicio de Inmunología y Reumatología, Hospital Nacional de Pediatría Juan P. Garrahan, Buenos Aires, Argentina
| | - Maria Martha Katsicas
- Servicio de Inmunología y Reumatología, Hospital Nacional de Pediatría Juan P. Garrahan, Buenos Aires, Argentina
| | - Laura Galluzzo
- Servicio de Anatomía Patológica, Hospital Nacional de Pediatría Juan P. Garrahan, Buenos Aires, Argentina
| | - Christian Weyersberg
- Servicio de Gastroenterología, Hospital Nacional de Pediatría Juan P. Garrahan, Buenos Aires, Argentina
| | - Marcela Bocian
- Servicio de Dermatología, Hospital Nacional de Pediatría Juan P. Garrahan, Buenos Aires, Argentina
| | - Maria Marta Bujan
- Servicio de Dermatología, Hospital Nacional de Pediatría Juan P. Garrahan, Buenos Aires, Argentina
| | - Matías Oleastro
- Servicio de Inmunología y Reumatología, Hospital Nacional de Pediatría Juan P. Garrahan, Buenos Aires, Argentina
| | - María B. Almejun
- Laboratorio de Biofisicoquímica de Proteínas, Departamento de Química Biológica, Instituto de Quimica Biologica de Facultad de Ciencias Biologicas y Naturales (IQUIBICEN), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
- Laboratorio de Genética en Endocrinología, Instituto de Biociencias, Biotecnologia y Biologia Translacional (IB3), Departamento de Fisiología, Biología Molecular y Celular, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Silvia Danielian
- Servicio de Inmunología y Reumatología, Hospital Nacional de Pediatría Juan P. Garrahan, Buenos Aires, Argentina
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Khurana ML, Mani I, Kumar P, Ramasamy C, Pandey KN. Ligand-Dependent Downregulation of Guanylyl Cyclase/Natriuretic Peptide Receptor-A: Role of miR-128 and miR-195. Int J Mol Sci 2022; 23:ijms232113381. [PMID: 36362173 PMCID: PMC9657974 DOI: 10.3390/ijms232113381] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 10/23/2022] [Accepted: 10/25/2022] [Indexed: 11/06/2022] Open
Abstract
Cardiac hormones act on the regulation of blood pressure (BP) and cardiovascular homeostasis. These hormones include atrial and brain natriuretic peptides (ANP, BNP) and activate natriuretic peptide receptor-A (NPRA), which enhance natriuresis, diuresis, and vasorelaxation. In this study, we established the ANP-dependent homologous downregulation of NPRA using human embryonic kidney-293 (HEK-293) cells expressing recombinant receptor and MA-10 cells harboring native endogenous NPRA. The prolonged pretreatment of cells with ANP caused a time- and dose-dependent decrease in 125I-ANP binding, Guanylyl cyclase (GC) activity of receptor, and intracellular accumulation of cGMP leading to downregulation of NPRA. Treatment with ANP (100 nM) for 12 h led to an 80% decrease in 125I-ANP binding to its receptor, and BNP decreased it by 62%. Neither 100 nM c-ANF (truncated ANF) nor C-type natriuretic peptide (CNP) had any effect. ANP (100 nM) treatment also decreased GC activity by 68% and intracellular accumulation cGMP levels by 45%, while the NPRA antagonist A71915 (1 µM) almost completely blocked ANP-dependent downregulation of NPRA. Treatment with the protein kinase G (PKG) stimulator 8-(4-chlorophenylthio)-cGMP (CPT-cGMP) (1 µM) caused a significant increase in 125I-ANP binding, whereas the PKG inhibitor KT 5823 (1 µM) potentiated the effect of ANP on the downregulation of NPRA. The transfection of miR-128 significantly reduced NPRA protein levels by threefold compared to control cells. These results suggest that ligand-dependent mechanisms play important roles in the downregulation of NPRA in target cells.
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Degjoni A, Campolo F, Stefanini L, Venneri MA. The NO/cGMP/PKG pathway in platelets: The therapeutic potential of PDE5 inhibitors in platelet disorders. J Thromb Haemost 2022; 20:2465-2474. [PMID: 35950928 PMCID: PMC9805178 DOI: 10.1111/jth.15844] [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: 05/20/2022] [Revised: 08/01/2022] [Accepted: 08/08/2022] [Indexed: 01/09/2023]
Abstract
Platelets are the "guardians" of the blood circulatory system. At sites of vessel injury, they ensure hemostasis and promote immunity and vessel repair. However, their uncontrolled activation is one of the main drivers of thrombosis. To keep circulating platelets in a quiescent state, the endothelium releases platelet antagonists including nitric oxide (NO) that acts by stimulating the intracellular receptor guanylyl cyclase (GC). The latter produces the second messenger cyclic guanosine-3',5'-monophosphate (cGMP) that inhibits platelet activation by stimulating protein kinase G, which phosphorylates hundreds of intracellular targets. Intracellular cGMP pools are tightly regulated by a fine balance between GC and phosphodiesterases (PDEs) that are responsible for the hydrolysis of cyclic nucleotides. Phosphodiesterase type 5 (PDE5) is a cGMP-specific PDE, broadly expressed in most tissues in humans and rodents. In clinical practice, PDE5 inhibitors (PDE5i) are used as first-line therapy for erectile dysfunction, pulmonary artery hypertension, and lower urinary tract symptoms. However, several studies have shown that PDE5i may ameliorate the outcome of various other conditions, like heart failure and stroke. Interestingly, NO donors and cGMP analogs increase the capacity of anti-platelet drugs targeting the purinergic receptor type Y, subtype 12 (P2Y12) receptor to block platelet aggregation, and preclinical studies have shown that PDE5i inhibits platelet functions. This review summarizes the molecular mechanisms underlying the effect of PDE5i on platelet activation and aggregation focusing on the therapeutic potential of PDE5i in platelet disorders, and the outcomes of a combined therapy with PDE5i and NO donors to inhibit platelet activation.
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Affiliation(s)
- Anisa Degjoni
- Department of Experimental MedicineSapienza University of RomeRomeItaly
| | - Federica Campolo
- Department of Experimental MedicineSapienza University of RomeRomeItaly
| | - Lucia Stefanini
- Department of Translational and Precision MedicineSapienza University of RomeRomeItaly
| | - Mary Anna Venneri
- Department of Experimental MedicineSapienza University of RomeRomeItaly
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da Silva LA, Diniz CRAF, Uliana DL, da Silva-Júnior AF, Bertacchini GL, Resstel LBM. The interaction between hippocampal cholinergic and nitrergic neurotransmission coordinates NMDA-dependent behavior and autonomic changes induced by contextual fear retrieval. Psychopharmacology (Berl) 2022; 239:3297-3311. [PMID: 35978221 DOI: 10.1007/s00213-022-06213-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 04/28/2022] [Accepted: 08/09/2022] [Indexed: 11/25/2022]
Abstract
RATIONALE Re-exposing an animal to an environment previously paired with an aversive stimulus evokes large alterations in behavioral and cardiovascular parameters. Dorsal hippocampus (dHC) receives important cholinergic inputs from the basal forebrain, and respective acetylcholine (ACh) levels are described to influence defensive behavior. Activation of muscarinic M1 and M3 receptors facilitates autonomic and behavioral responses along threats. Evidence show activation of cholinergic receptors promoting formation of nitric oxide (NO) and cyclic guanosine monophosphate (cGMP) in dHC. Altogether, the action of ACh and NO on conditioned responses appears to converge within dHC. OBJECTIVES As answer about how ACh and NO interact to modulate defensive responses has so far been barely addressed, we aimed to shed additional light on this topic. METHODS Male Wistar rats had guide cannula implanted into the dHC before being submitted to the contextual fear conditioning (3footshocks/085 mA/2 s). A catheter was implanted in the femoral artery the next day for cardiovascular recordings. Drugs were delivered into dHC 10 min before contextual re-exposure, which occurred 48 h after the conditioning procedure. RESULTS Neostigmine (Neo) amplified the retrieval of conditioned responses. Neo effects (1 nmol) were prevented by the prior infusion of a M1-M3 antagonist (fumarate), a neuronal nitric oxide synthase inhibitor (NPLA), a NO scavenger (cPTIO), a guanylyl cyclase inhibitor (ODQ), and a NMDA antagonist (AP-7). Pretreatment with a selective M1 antagonist (pirenzepine) only prevented the increase in autonomic responses induced by Neo. CONCLUSION The results show that modulation in the retrieval of contextual fear responses involves coordination of the dHC M1-M3/NO/cGMP/NMDA pathway.
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Affiliation(s)
- Leandro Antero da Silva
- Department of Pharmacology, School of Medicine, Universidade de Sao Paulo, Campus USP, Bandeirantes Avenue, Monte Alegre, Ribeirão Preto, SP, 14049-900, Brazil
- State University of Mato Grosso Do Sul - Medicine UEMS, Mato Grosso Do Sul, Campo Grande, Brazil
| | - Cassiano Ricardo Alves Faria Diniz
- Department of Pharmacology, School of Medicine, Universidade de Sao Paulo, Campus USP, Bandeirantes Avenue, Monte Alegre, Ribeirão Preto, SP, 14049-900, Brazil
| | - Daniela Lescano Uliana
- Department of Pharmacology, School of Medicine, Universidade de Sao Paulo, Campus USP, Bandeirantes Avenue, Monte Alegre, Ribeirão Preto, SP, 14049-900, Brazil
- Departments of Neuroscience, Psychiatry and Psychology, University of Pittsburgh, A210 Langley Hall, Pittsburgh, PA, 15260, USA
| | - Antonio Furtado da Silva-Júnior
- Department of Pharmacology, School of Medicine, Universidade de Sao Paulo, Campus USP, Bandeirantes Avenue, Monte Alegre, Ribeirão Preto, SP, 14049-900, Brazil
| | - Gabriela Luiz Bertacchini
- Department of Pharmacology, School of Medicine, Universidade de Sao Paulo, Campus USP, Bandeirantes Avenue, Monte Alegre, Ribeirão Preto, SP, 14049-900, Brazil
| | - Leonardo Barbosa Moraes Resstel
- Department of Pharmacology, School of Medicine, Universidade de Sao Paulo, Campus USP, Bandeirantes Avenue, Monte Alegre, Ribeirão Preto, SP, 14049-900, Brazil.
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Chasapi SA, Argyriou AI, Spyroulias GA. Backbone and side chain NMR assignment of the heme-nitric oxide/oxygen binding (H-NOX) domain from Nostoc punctiforme. Biomol NMR Assign 2022; 16:379-384. [PMID: 36066818 PMCID: PMC9510103 DOI: 10.1007/s12104-022-10107-1] [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] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 08/31/2022] [Indexed: 06/15/2023]
Abstract
Soluble guanylate cyclase (sGC) is considered as the primary NO receptor across several known eukaryotes. The main interest regarding the biological role and its function, focuses on the H-NOX domain of the β1 subunit. This domain in its active form bears a ferrous b type heme as prosthetic group, which facilitates the binding of NO and other diatomic gases. The key point that still needs to be answered is how the protein selectively binds the NO and how the redox state of heme and coordination determines H-NOX active state upon binding of diatomic gases. H-NOX domain is present in the genomes of both prokaryotes and eukaryotes, either as a stand-alone protein domain or as a partner of a larger polypeptide. The biological functions of these signaling modules for a wide range of genomes, diverge considerably along with their ligand binding properties. In this direction, we examine the prokaryotic H-NOX protein domain from Nostoc punctiforme (Npun H-NOX). Herein, we first report the almost complete NMR backbone and side-chain resonance assignment (1H, 13C, 15 N) of Npun H-NOX domain together with the NMR chemical shift-based prediction of the domain's secondary structure elements.
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Zhao P, Hu Y, Sun D, Meng Q, Zhang L, Zhang X, Tan L, Zhang Y, Ding Y, He X. A novel CARD11 germline mutation in a Chinese patient of B cell expansion with NF-κB and T cell anergy (BENTA) and literature review. Front Immunol 2022; 13:943027. [PMID: 36203613 PMCID: PMC9530255 DOI: 10.3389/fimmu.2022.943027] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 08/18/2022] [Indexed: 11/13/2022] Open
Abstract
Germline gain-of-function (GOF) mutations in the CARD11 gene lead to a rare primary immunodeficiency disease known as B cell expansion with NF-κB and T cell anergy (BENTA). Affected patients present with a polyclonal expansion of B cells, lymphadenopathy, and splenomegaly. Herein, we report a novel germline in-frame three base-pair deletion (c.1030_1032del, p.K344del) in the CARD11 gene in a patient with atypical BENTA, presenting with a recurrent fever and B cell lymphocytosis. This mutation was inherited from his mother, who is clinically asymptomatic and had a recurrent respiratory tract infection in her childhood. In vitro functional analysis demonstrated that this variant decreased the expression level of the CARD11 protein and activated the NF-κB signal pathway, leading to a higher expression of several NF-κB target gene transcripts in HCT116 cells transfected with mutant CARD11 (K344del-CARD11) as revealed by RNA sequencing analysis. To our knowledge, only 23 BENTA patients have been identified and carried seven distinct GOF mutations in CARD11. The clinical manifestations of patients are highly heterogeneous and there was no significant correlation between genotype and phenotype. In summary, we identified a novel in-frame three base-pair deletion that may be responsible for the pathogenesis of atypical BENTA in a Chinese family. Our study expands the mutational spectrum of the CARD11 gene and may be helpful in the understanding of diseases caused by CARD11 mutations and the clinical management of BENTA.
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Affiliation(s)
- Peiwei Zhao
- Precision Medical Center, Wuhan Children’s Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Yanqiu Hu
- Precision Medical Center, Wuhan Children’s Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Dongming Sun
- Department of Cardiology, Wuhan Children’s Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Qingjie Meng
- Department of Clinical Laboratory, Wuhan Children’s Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Lei Zhang
- Precision Medical Center, Wuhan Children’s Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Xiankai Zhang
- Precision Medical Center, Wuhan Children’s Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Li Tan
- Precision Medical Center, Wuhan Children’s Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Yong Zhang
- Department of Cardiology, Wuhan Children’s Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
- *Correspondence: Xuelian He, ; Yan Ding, ; Yong Zhang,
| | - Yan Ding
- Rheumatology and Immunology Department, Wuhan Children’s Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
- *Correspondence: Xuelian He, ; Yan Ding, ; Yong Zhang,
| | - Xuelian He
- Precision Medical Center, Wuhan Children’s Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
- *Correspondence: Xuelian He, ; Yan Ding, ; Yong Zhang,
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Swafford K, Acharya B, Xu YZ, Raney T, McCrury M, Saha D, Frett B, Kendrick S. Targeting a Novel G-Quadruplex in the CARD11 Oncogene Promoter with Naptho(2,1-b)furan-1-ethanol,2-nitro- Requires the Nitro Group. Genes (Basel) 2022; 13:genes13071144. [PMID: 35885931 PMCID: PMC9321325 DOI: 10.3390/genes13071144] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 06/17/2022] [Accepted: 06/21/2022] [Indexed: 02/04/2023] Open
Abstract
The aggressive nature of the activated B cell such as (ABC) subtype of diffuse large B cell (DLBCL) is frequently associated with altered B cell Receptor (BCR) signaling through the activation of key components including the scaffolding protein, CARD11. Most inhibitors, such as ibrutinib, target downstream BCR kinases with often modest and temporary responses for DLBCL patients. Here, we pursue an alternative strategy to target the BCR pathway by leveraging a novel DNA secondary structure to repress transcription. We discovered that a highly guanine (G)-rich element within the CARD11 promoter forms a stable G-quadruplex (G4) using circular dichroism and polymerase stop biophysical techniques. We then identified a small molecule, naptho(2,1-b)furan-1-ethanol,2-nitro- (NSC373981), from a fluorescence-resonance energy transfer-based screen that stabilized CARD11 G4 and inhibited CARD11 transcription in DLBCL cells. In generating and testing analogs of NSC373981, we determined that the nitro group is likely essential for the downregulation of CARD11 and interaction with CARD11 G4, and the removal of the ethanol side chain enhanced this activity. Of note, the expression of BCL2 and MYC, two other key oncogenes in DLBCL pathology with known promoter G4 structures, were often concurrently repressed with NSC373981 and the highly potent R158 analog. Our findings highlight a novel approach to treat aggressive DLBCL by silencing CARD11 gene expression that warrants further investigation.
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Affiliation(s)
- Kennith Swafford
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (K.S.); (Y.-Z.X.); (T.R.); (M.M.)
| | - Baku Acharya
- Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (B.A.); (D.S.)
| | - Ying-Zhi Xu
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (K.S.); (Y.-Z.X.); (T.R.); (M.M.)
| | - Thomas Raney
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (K.S.); (Y.-Z.X.); (T.R.); (M.M.)
| | - Mason McCrury
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (K.S.); (Y.-Z.X.); (T.R.); (M.M.)
| | - Debasmita Saha
- Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (B.A.); (D.S.)
| | - Brendan Frett
- Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (B.A.); (D.S.)
- Correspondence: (B.F.); (S.K.); Tel.: +1-501-526-0893 (B.F.); +1-501-526-6000 (ext. 25122) (S.K.)
| | - Samantha Kendrick
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (K.S.); (Y.-Z.X.); (T.R.); (M.M.)
- Correspondence: (B.F.); (S.K.); Tel.: +1-501-526-0893 (B.F.); +1-501-526-6000 (ext. 25122) (S.K.)
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Chen CW, Chen LK, Huang TY, Yang DM, Liu SY, Tsai PJ, Chen TH, Lin HF, Juan CC. Nitric Oxide Mobilizes Intracellular Zn2+ via the GC/cGMP/PKG Signaling Pathway and Stimulates Adipocyte Differentiation. Int J Mol Sci 2022; 23:ijms23105488. [PMID: 35628299 PMCID: PMC9143299 DOI: 10.3390/ijms23105488] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [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: 03/28/2022] [Revised: 05/03/2022] [Accepted: 05/11/2022] [Indexed: 12/10/2022] Open
Abstract
Plasma and tissue zinc ion levels are associated with the development of obesity. Previous studies have suggested that zinc ions may regulate adipocyte metabolism and that nitric oxide (NO) plays a pivotal role in the regulation of adipocyte physiology. Our previous study showed that chronic NO deficiency causes a significant decrease in adipose tissue mass in rats. Studies also suggested that zinc ions play an important modulatory role in regulating NO function. This study aims to explore the role of zinc ions in NO-regulated adipocyte differentiation. We hypothesized that NO could increase intracellular Zn2+ level and then stimulate adipocyte differentiation. ZnCl2 and the NO donor, NONOate, were used to explore the effects of Zn2+ and NO on adipocyte differentiation. Regulatory mechanisms of NO on intracellular Zn2+ mobilization were determined by detection. Then, Zn2+-selective chelator TPEN was used to clarify the role of intracellular Zn2+ on NO-regulated adipocyte differentiation. Furthermore, the relationship between adipocyte size, Zn2+ level, and NOS expression in human subcutaneous fat tissue was elucidated. Results showed that both ZnCl2 and NO stimulated adipocyte differentiation in a dose-dependent manner. NO stimulated intracellular Zn2+ mobilization in adipocytes through the guanylate cyclase (GC)/cyclic guanosine monophosphate (cGMP)/protein kinase G (PKG) pathway, and NO-stimulated adipocyte differentiation was Zn2+-dependent. In human subcutaneous adipose tissue, adipocyte size was negatively correlated with expression of eNOS. In conclusion, NO treatment stimulates intracellular Zn2+ mobilization through the GC/cGMP/PKG pathway, subsequently stimulating adipocyte differentiation.
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Affiliation(s)
- Chien-Wei Chen
- College of Human Development and Health, National Taipei University of Nursing and Health Sciences, Taipei 112303, Taiwan;
| | - Luen-Kui Chen
- Institute of Physiology, College of Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan; (L.-K.C.); (T.-Y.H.); (S.-Y.L.)
| | - Tai-Ying Huang
- Institute of Physiology, College of Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan; (L.-K.C.); (T.-Y.H.); (S.-Y.L.)
| | - De-Ming Yang
- Institute of Biophotonics, College of Biomedical Science and Engineering, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan;
- Department of Medical Research, Taipei Veterans General Hospital, Taipei 112201, Taiwan
| | - Shui-Yu Liu
- Institute of Physiology, College of Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan; (L.-K.C.); (T.-Y.H.); (S.-Y.L.)
| | - Pei-Jiun Tsai
- Institute of Anatomy and Cell Biology, College of Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan; (P.-J.T.); (T.-H.C.)
- Department of Critical Care Medicine, Taipei Veterans General Hospital, Taipei 112201, Taiwan
- Trauma Center, Taipei Veterans General Hospital, Taipei 112201, Taiwan
| | - Tien-Hua Chen
- Institute of Anatomy and Cell Biology, College of Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan; (P.-J.T.); (T.-H.C.)
- Trauma Center, Taipei Veterans General Hospital, Taipei 112201, Taiwan
- Division of General Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei 112201, Taiwan
| | - Heng-Fu Lin
- Division of Trauma, Department of Surgery, Far-Eastern Memorial Hospital, New Taipei City 220216, Taiwan
- Graduate Institute of Medicine, Yuan Ze University, Taoyuan 320315, Taiwan
- Correspondence: (H.-F.L.); (C.-C.J.)
| | - Chi-Chang Juan
- Institute of Physiology, College of Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan; (L.-K.C.); (T.-Y.H.); (S.-Y.L.)
- Department of Medical Research, Taipei Veterans General Hospital, Taipei 112201, Taiwan
- Department of Education and Research, Taipei City Hospital, Taipei 103212, Taiwan
- Correspondence: (H.-F.L.); (C.-C.J.)
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Abstract
Regulatory T cells (Tregs) are a critical subset of CD4 T cells that modulate the immune response to prevent autoimmunity and chronic inflammation. CARD11, a signaling hub and scaffold protein that links antigen receptor engagement to activation of NF-κB and other downstream signaling pathways, is essential for the development and function of thymic Tregs. Mouse models with deficiencies in CARD11 and CARD11-associated signaling components generally have Treg defects, but some mouse models develop overt autoimmunity and inflammatory disease whereas others do not. Inhibition of CARD11 signaling in Tregs within the tumor microenvironment can potentially promote anti-tumor immunity. In this review, we summarize evidence for the involvement of CARD11 signaling in Treg development and function and discuss key unanswered questions and future research opportunities.
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Affiliation(s)
- Nicole M Carter
- Department of Biological Chemistry, Institute for Cell Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Joel L Pomerantz
- Department of Biological Chemistry, Institute for Cell Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA.
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Shahu MK, Schuhmann F, Scholten A, Solov’yov IA, Koch KW. The Transition of Photoreceptor Guanylate Cyclase Type 1 to the Active State. Int J Mol Sci 2022; 23:ijms23074030. [PMID: 35409388 PMCID: PMC8999790 DOI: 10.3390/ijms23074030] [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: 02/22/2022] [Accepted: 04/02/2022] [Indexed: 11/16/2022] Open
Abstract
Membrane-bound guanylate cyclases (GCs), which synthesize the second messenger guanosine-3', 5'-cyclic monophosphate, differ in their activation modes to reach the active state. Hormone peptides bind to the extracellular domain in hormone-receptor-type GCs and trigger a conformational change in the intracellular, cytoplasmic part of the enzyme. Sensory GCs that are present in rod and cone photoreceptor cells have intracellular binding sites for regulatory Ca2+-sensor proteins, named guanylate-cyclase-activating proteins. A rotation model of activation involving an α-helix rotation was described as a common activation motif among hormone-receptor GCs. We tested whether the photoreceptor GC-E underwent an α-helix rotation when reaching the active state. We experimentally simulated such a transitory switch by integrating alanine residues close to the transmembrane region, and compared the effects of alanine integration with the point mutation V902L in GC-E. The V902L mutation is found in patients suffering from retinal cone-rod dystrophies, and leads to a constitutively active state of GC-E. We analyzed the enzymatic catalytic parameters of wild-type and mutant GC-E. Our data showed no involvement of an α-helix rotation when reaching the active state, indicating a difference in hormone receptor GCs. To characterize the protein conformations that represent the transition to the active state, we investigated the protein dynamics by using a computational approach based on all-atom molecular dynamics simulations. We detected a swinging movement of the dimerization domain in the V902L mutant as the critical conformational switch in the cyclase going from the low to high activity state.
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Affiliation(s)
- Manisha Kumari Shahu
- Division of Biochemistry, Department of Neuroscience, University of Oldenburg, 26111 Oldenburg, Germany; (M.K.S.); (A.S.)
| | - Fabian Schuhmann
- Institute of Physics, University of Oldenburg, 26111 Oldenburg, Germany; (F.S.); (I.A.S.)
| | - Alexander Scholten
- Division of Biochemistry, Department of Neuroscience, University of Oldenburg, 26111 Oldenburg, Germany; (M.K.S.); (A.S.)
| | - Ilia A. Solov’yov
- Institute of Physics, University of Oldenburg, 26111 Oldenburg, Germany; (F.S.); (I.A.S.)
- Research Centre for Neurosensory Science, University of Oldenburg, 26111 Oldenburg, Germany
| | - Karl-Wilhelm Koch
- Division of Biochemistry, Department of Neuroscience, University of Oldenburg, 26111 Oldenburg, Germany; (M.K.S.); (A.S.)
- Research Centre for Neurosensory Science, University of Oldenburg, 26111 Oldenburg, Germany
- Correspondence:
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Kamkin AG, Kamkina OV, Shim AL, Bilichenko A, Mitrokhin VM, Kazansky VE, Filatova TS, Abramochkin D, Mladenov MI. The role of activation of two different sGC binding sites by NO-dependent and NO-independent mechanisms in the regulation of SACs in rat ventricular cardiomyocytes. Physiol Rep 2022; 10:e15246. [PMID: 35384354 PMCID: PMC8981922 DOI: 10.14814/phy2.15246] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [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: 08/26/2021] [Revised: 03/09/2022] [Accepted: 03/09/2022] [Indexed: 04/18/2023] Open
Abstract
The mechanoelectrical feedback (MEF) mechanism in the heart that plays a significant role in the occurrence of arrhythmias, involves cation flux through cation nonselective stretch-activated channels (SACs). It is well known that nitric oxide (NO) can act as a regulator of MEF. Here we addressed the possibility of SAC's regulation along NO-dependent and NO-independent pathways, as well as the possibility of S-nitrosylation of SACs. In freshly isolated rat ventricular cardiomyocytes, using the patch-clamp method in whole-cell configuration, inward nonselective stretch-activated cation current ISAC was recorded through SACs, which occurs during dosed cell stretching. NO donor SNAP, α1-subunit of sGC activator BAY41-2272, sGC blocker ODQ, PKG blocker KT5823, PKG activator 8Br-cGMP, and S-nitrosylation blocker ascorbic acid, were employed. We concluded that the physiological concentration of NO in the cell is a necessary condition for the functioning of SACs. An increase in NO due to SNAP in an unstretched cell causes the appearance of a Gd3+ -sensitive nonselective cation current, an analog of ISAC , while in a stretched cell it eliminates ISAC . The NO-independent pathway of sGC activation of α subunit, triggered by BAY41-2272, is also important for the regulation of SACs. Since S-nitrosylation inhibitor completely abolishes ISAC , this mechanism occurs. The application of BAY41-2272 cannot induce ISAC in a nonstretched cell; however, the addition of SNAP on its background activates SACs, rather due to S-nitrosylation. ODQ eliminates ISAC , but SNAP added on the background of stretch increases ISAC in addition to ODQ. This may be a result of the lack of NO as a result of inhibition of NOS by metabolically modified ODQ. KT5823 reduces PKG activity and reduces SACs phosphorylation, leading to an increase in ISAC . 8Br-cGMP reduces ISAC by activating PKG and its phosphorylation. These results demonstrate a significant contribution of S-nitrosylation to the regulation of SACs.
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Affiliation(s)
- Andre G. Kamkin
- Department of PhysiologyPirogov Russian National Research Medical UniversityMoscowRussia
| | - Olga V. Kamkina
- Department of PhysiologyPirogov Russian National Research Medical UniversityMoscowRussia
| | - Andrey L. Shim
- Department of PhysiologyPirogov Russian National Research Medical UniversityMoscowRussia
| | - Andrey Bilichenko
- Department of PhysiologyPirogov Russian National Research Medical UniversityMoscowRussia
| | - Vadim M. Mitrokhin
- Department of PhysiologyPirogov Russian National Research Medical UniversityMoscowRussia
| | - Viktor E. Kazansky
- Department of PhysiologyPirogov Russian National Research Medical UniversityMoscowRussia
| | - Tatiana S. Filatova
- Department of PhysiologyPirogov Russian National Research Medical UniversityMoscowRussia
- Department of Human and Animal PhysiologyLomonosov Moscow State UniversityMoscowRussia
| | - Denis V. Abramochkin
- Department of PhysiologyPirogov Russian National Research Medical UniversityMoscowRussia
- Department of Human and Animal PhysiologyLomonosov Moscow State UniversityMoscowRussia
| | - Mitko I. Mladenov
- Department of PhysiologyPirogov Russian National Research Medical UniversityMoscowRussia
- Faculty of Natural Sciences and MathematicsInstitute of Biology, “Ss. Cyril and Methodius” UniversitySkopjeMacedonia
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Avesani A, Bielefeld L, Weisschuh N, Marino V, Mazzola P, Stingl K, Haack TB, Koch KW, Dell’Orco D. Molecular Properties of Human Guanylate Cyclase-Activating Protein 3 (GCAP3) and Its Possible Association with Retinitis Pigmentosa. Int J Mol Sci 2022; 23:ijms23063240. [PMID: 35328663 PMCID: PMC8948881 DOI: 10.3390/ijms23063240] [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: 02/21/2022] [Revised: 03/12/2022] [Accepted: 03/15/2022] [Indexed: 11/17/2022] Open
Abstract
The cone-specific guanylate cyclase-activating protein 3 (GCAP3), encoded by the GUCA1C gene, has been shown to regulate the enzymatic activity of membrane-bound guanylate cyclases (GCs) in bovine and teleost fish photoreceptors, to an extent comparable to that of the paralog protein GCAP1. To date, the molecular mechanisms underlying GCAP3 function remain largely unexplored. In this work, we report a thorough characterization of the biochemical and biophysical properties of human GCAP3, moreover, we identified an isolated case of retinitis pigmentosa, in which a patient carried the c.301G>C mutation in GUCA1C, resulting in the substitution of a highly conserved aspartate residue by a histidine (p.(D101H)). We found that myristoylated GCAP3 can activate GC1 with a similar Ca2+-dependent profile, but significantly less efficiently than GCAP1. The non-myristoylated form did not induce appreciable regulation of GC1, nor did the p.D101H variant. GCAP3 forms dimers under physiological conditions, but at odds with its paralogs, it tends to form temperature-dependent aggregates driven by hydrophobic interactions. The peculiar properties of GCAP3 were confirmed by 2 ms molecular dynamics simulations, which for the p.D101H variant highlighted a very high structural flexibility and a clear tendency to lose the binding of a Ca2+ ion to EF3. Overall, our data show that GCAP3 has unusual biochemical properties, which make the protein significantly different from GCAP1 and GCAP2. Moreover, the newly identified point mutation resulting in a substantially unfunctional protein could trigger retinitis pigmentosa through a currently unknown mechanism.
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Affiliation(s)
- Anna Avesani
- Section of Biological Chemistry, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, 37134 Verona, Italy; (A.A.); (V.M.)
| | - Laura Bielefeld
- Division of Biochemistry, Department of Neuroscience, University of Oldenburg, 26111 Oldenburg, Germany; (L.B.); (K.-W.K.)
| | - Nicole Weisschuh
- Institute for Ophthalmic Research, Centre for Ophthalmology, University of Tübingen, 72076 Tübingen, Germany;
| | - Valerio Marino
- Section of Biological Chemistry, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, 37134 Verona, Italy; (A.A.); (V.M.)
| | - Pascale Mazzola
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, 72076 Tübingen, Germany; (P.M.); (T.B.H.)
| | - Katarina Stingl
- University Eye Hospital, Centre for Ophthalmology, University of Tübingen, 72076 Tübingen, Germany;
| | - Tobias B. Haack
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, 72076 Tübingen, Germany; (P.M.); (T.B.H.)
- Centre for Rare Diseases, University of Tübingen, 72076 Tübingen, Germany
| | - Karl-Wilhelm Koch
- Division of Biochemistry, Department of Neuroscience, University of Oldenburg, 26111 Oldenburg, Germany; (L.B.); (K.-W.K.)
| | - Daniele Dell’Orco
- Section of Biological Chemistry, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, 37134 Verona, Italy; (A.A.); (V.M.)
- Correspondence: ; Tel.: +39-045-802-7637
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Nelissen E, Possemis N, Van Goethem NP, Schepers M, Mulder-Jongen DAJ, Dietz L, Janssen W, Gerisch M, Hüser J, Sandner P, Vanmierlo T, Prickaerts J. The sGC stimulator BAY-747 and activator runcaciguat can enhance memory in vivo via differential hippocampal plasticity mechanisms. Sci Rep 2022; 12:3589. [PMID: 35246566 PMCID: PMC8897390 DOI: 10.1038/s41598-022-07391-1] [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: 10/04/2021] [Accepted: 02/10/2022] [Indexed: 12/22/2022] Open
Abstract
Soluble guanylate cyclase (sGC) requires a heme-group bound in order to produce cGMP, a second messenger involved in memory formation, while heme-free sGC is inactive. Two compound classes can increase sGC activity: sGC stimulators acting on heme-bound sGC, and sGC activators acting on heme-free sGC. In this rodent study, we investigated the potential of the novel brain-penetrant sGC stimulator BAY-747 and sGC activator runcaciguat to enhance long-term memory and attenuate short-term memory deficits induced by the NOS-inhibitor L-NAME. Furthermore, hippocampal plasticity mechanisms were investigated. In vivo, oral administration of BAY-747 and runcaciguat to male Wistar rats enhanced memory acquisition in the object location task (OLT), while only BAY-747 reversed L-NAME induced memory impairments in the OLT. Ex vivo, both BAY-747 and runcaciguat enhanced hippocampal GluA1-containing AMPA receptor (AMPAR) trafficking in a chemical LTP model for memory acquisition using acute mouse hippocampal slices. In vivo only runcaciguat acted on the glutamatergic AMPAR system in hippocampal memory acquisition processes, while for BAY-747 the effects on the neurotrophic system were more pronounced as measured in male mice using western blot. Altogether this study shows that sGC stimulators and activators have potential as cognition enhancers, while the underlying plasticity mechanisms may determine disease-specific effectiveness.
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Affiliation(s)
- Ellis Nelissen
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNS), Maastricht University, Universiteitssingel 50, 6229 ER, Maastricht, The Netherlands.
| | - Nina Possemis
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNS), Maastricht University, Universiteitssingel 50, 6229 ER, Maastricht, The Netherlands
| | - Nick P Van Goethem
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNS), Maastricht University, Universiteitssingel 50, 6229 ER, Maastricht, The Netherlands
| | - Melissa Schepers
- Neuro-Immune Connect and Repair Lab, Biomedical Research Institute, Hasselt University, 3500, Hasselt, Belgium
| | - Danielle A J Mulder-Jongen
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNS), Maastricht University, Universiteitssingel 50, 6229 ER, Maastricht, The Netherlands
| | - Lisa Dietz
- Bayer AG, Pharmaceuticals R&D, Pharma Research Center, 42113, Wuppertal, Germany
| | - Wiebke Janssen
- Bayer AG, Pharmaceuticals R&D, Pharma Research Center, 42113, Wuppertal, Germany
| | - Michael Gerisch
- Bayer AG, Pharmaceuticals R&D, Pharma Research Center, 42113, Wuppertal, Germany
| | - Jörg Hüser
- Bayer AG, Pharmaceuticals R&D, Pharma Research Center, 42113, Wuppertal, Germany
| | - Peter Sandner
- Bayer AG, Pharmaceuticals R&D, Pharma Research Center, 42113, Wuppertal, Germany
- Hannover Medical School, 30625, Hannover, Germany
| | - Tim Vanmierlo
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNS), Maastricht University, Universiteitssingel 50, 6229 ER, Maastricht, The Netherlands
- Neuro-Immune Connect and Repair Lab, Biomedical Research Institute, Hasselt University, 3500, Hasselt, Belgium
| | - Jos Prickaerts
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNS), Maastricht University, Universiteitssingel 50, 6229 ER, Maastricht, The Netherlands.
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Zhang YY, Peng J, Luo XJ. Post-translational modification of MALT1 and its role in B cell- and T cell-related diseases. Biochem Pharmacol 2022; 198:114977. [PMID: 35218741 DOI: 10.1016/j.bcp.2022.114977] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [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: 01/22/2022] [Revised: 02/18/2022] [Accepted: 02/18/2022] [Indexed: 02/06/2023]
Abstract
Mucosa-associated lymphoid tissue lymphoma translocation protein 1 (MALT1) is a multifunctional protein. MALT1 functions as an adaptor protein to assemble and recruit proteins such as B-cell lymphoma 10 (BCL10) and caspase-recruitment domain (CARD)-containing coiled-coil protein 11 (CARD11). Conversely it also acts as a paracaspase to cleave specified substrates. Because of its involvement in immunity, inflammation and cancer through its dual functions of scaffolding and catalytic activity, MALT1 is becoming a promising therapeutic target in B cell- and T cell-related diseases. There is growing evidence that the function of MALT1 is subtly modulated via post-translational modifications. This review summarized recent progress in relevant studies regarding the physiological and pathophysiological functions of MALT1, post-translational modifications of MALT1 and its role in B cell- and T cell- related diseases. In addition, the current available MALT1 inhibitors were also discussed.
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Affiliation(s)
- Yi-Yue Zhang
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410078, China
| | - Jun Peng
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410078, China; Hunan Provincial Key Laboratory of Cardiovascular Research, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410078, China.
| | - Xiu-Ju Luo
- Department of Laboratory Medicine, The Third Xiangya Hospital of Central South University, Changsha 410013, China.
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Takei Y. Evolution of the membrane/particulate guanylyl cyclase: From physicochemical sensors to hormone receptors. Gen Comp Endocrinol 2022; 315:113797. [PMID: 33957096 DOI: 10.1016/j.ygcen.2021.113797] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 01/22/2021] [Revised: 04/19/2021] [Accepted: 04/28/2021] [Indexed: 12/26/2022]
Abstract
Guanylyl cyclase (GC) is an enzyme that produces 3',5'-cyclic guanosine monophosphate (cGMP), one of the two canonical cyclic nucleotides used as a second messenger for intracellular signal transduction. The GCs are classified into two groups, particulate/membrane GCs (pGC) and soluble/cytosolic GCs (sGC). In relation to the endocrine system, pGCs include hormone receptors for natriuretic peptides (GC-A and GC-B) and guanylin peptides (GC-C), while sGC is a receptor for nitric oxide and carbon monoxide. Comparing the functions of pGCs in eukaryotes, it is apparent that pGCs perceive various environmental factors such as light, temperature, and various external chemical signals in addition to endocrine hormones, and transmit the information into the cell using the intracellular signaling cascade initiated by cGMP, e.g., cGMP-dependent protein kinases, cGMP-sensitive cyclic nucleotide-gated ion channels and cGMP-regulated phosphodiesterases. Among vertebrate pGCs, GC-E and GC-F are localized on retinal epithelia and are involved in modifying signal transduction from the photoreceptor, rhodopsin. GC-D and GC-G are localized in olfactory epithelia and serve as sensors at the extracellular domain for external chemical signals such as odorants and pheromones. GC-G also responds to guanylin peptides in the urine, which alters sensitivity to other chemicals. In addition, guanylin peptides that are secreted into the intestinal lumen, a pseudo-external environment, act on the GC-C on the apical membrane for regulation of epithelial transport. In this context, GC-C and GC-G appear to be in transition from exocrine pheromone receptor to endocrine hormone receptor. The pGCs also exist in various deuterostome and protostome invertebrates, and act as receptors for environmental, exocrine and endocrine factors including hormones. Tracing the evolutionary history of pGCs, it appears that pGCs first appeared as a sensor for physicochemical signals in the environment, and then evolved to function as hormone receptors. In this review, the author proposes an evolutionary history of pGCs that highlights the emerging role of the GC/cGMP system for signal transduction in hormone action.
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Affiliation(s)
- Yoshio Takei
- Laboratory of Physiology, Department of Marine Bioscience, Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Chiba 277-8564, Japan.
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Tian Y, Gao S, Nagel G. In Vivo and In Vitro Characterization of Cyclase and Phosphodiesterase Rhodopsins. Methods Mol Biol 2022; 2501:325-338. [PMID: 35857236 DOI: 10.1007/978-1-0716-2329-9_16] [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] [Indexed: 06/15/2023]
Abstract
Rhodopsins with enzymatic activity were found in microbes, in 2004 hypothetically from sequence data and since 2014 by experimental proof. So far three different types are known: light-activated guanylyl cyclase opsins (Cyclop) in fungi, light-inhibited two-component guanylyl cyclase opsins (2c-Cyclop) in green algae, and rhodopsin phosphodiesterases (RhoPDE) in choanoflagellates. They are integral membrane proteins with eight transmembrane helices (TM), different to the other microbial (type I) rhodopsins with 7 TM. Therefore, we propose a classification as type Ib rhodopsins for opsins with 8 TM and type Ia for the ones with 7 TM. To characterize those rhodopsins or their mutants, the expression in Xenopus laevis oocytes proved to be an efficient strategy. Functional analysis was initially performed "in oocyte" (in vivo), but more detailed characterization can be obtained with an in vitro assay. In this chapter, we describe procedures how to extract membranes from oocytes after cRNA microinjection and heterologous protein expression. Enzymatic activity of these membranes is then analyzed under different illumination conditions. In addition, fluorescent labeling of the rhodopsins is employed to quantify the expression level and the absolute activity of designed mutants. We discuss strengths and pitfalls, associated with this expression system, and strategies for selecting potentially useful optogenetic tools.
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Affiliation(s)
- Yuehui Tian
- Department of Neurophysiology, Institute of Physiology, Biocenter, University of Wuerzburg, Wuerzburg, Germany
- Environmental Microbiomics Research Center, School of Environmental Science and Engineering, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Guangzhou, China
| | - Shiqiang Gao
- Department of Neurophysiology, Institute of Physiology, Biocenter, University of Wuerzburg, Wuerzburg, Germany
| | - Georg Nagel
- Department of Neurophysiology, Institute of Physiology, Biocenter, University of Wuerzburg, Wuerzburg, Germany.
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Cohen MB, Gold BD, Xanthakos SA, CaJacob N, Weissman T, Bartolini W, Boinpally R, Mallick M, Reasner DS, O'Dea CR, Kwak H, Ge P. Intestinal Guanylate Cyclase-C mRNA Expression in Duodenum and Colon of Children. J Pediatr Gastroenterol Nutr 2021; 73:703-709. [PMID: 34508047 DOI: 10.1097/mpg.0000000000003296] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OBJECTIVES Guanylate cyclase-C (GC-C) agonists, which increase intestinal secretion and accelerate transit, are used to treat chronic constipation and constipation-predominant irritable bowel syndrome and are being evaluated for pediatric use. Prior studies suggest GC-C receptor density may be higher in young children, potentially amplifying GC-C agonism with treatment implications. We aimed to quantitate duodenal and colonic GC-C mRNA expression in children. METHODS Mucosal biopsies were obtained from subjects aged 6 months to 18 years during clinically indicated upper, that is, esophago-gastro-duodenal, and/or colonic endoscopy. Tissue samples without histologic abnormalities were grouped by subject age (<24 months, 24 months to <6 years, 6 to <12 years, and 12 to <18 years) and analyzed for GC-C mRNA expression by qPCR. The relationship between GC-C mRNA levels and age was modeled using regression analyses. RESULTS Ninety-nine subjects underwent upper endoscopy/colonoscopy; 93 had evaluable samples. Mean relative GC-C mRNA expression was 2.36 (range 2.21-2.46) for duodenal samples and 1.56 (range 1.22-1.91) for colonic samples. Predicted and observed normalized GC-C mRNA expression in each region were comparable among age groups. Pooled expression by region demonstrated lower expression in colonic versus duodenal samples. CONCLUSIONS Uniform levels of GC-C mRNA expression were detected in children aged >6 months in the duodenum and >12 months in the colon. Higher expression was observed in all age groups in duodenal versus colonic samples, indicating regional variability in GC-C receptor density. These data are reassuring for further studies of GC-C agonists in children.
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Affiliation(s)
- Mitchell B Cohen
- Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL
| | - Benjamin D Gold
- GI Care for Kids, LLC, Children's Center for Digestive Healthcare, LLC, Atlanta, GA
| | - Stavra A Xanthakos
- Division of Gastroenterology, Hepatology, and Nutrition, Cincinnati Children's, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH
| | - Nicholas CaJacob
- Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL
| | | | | | | | | | | | | | - Hanna Kwak
- Clinical Project Manager, Spero Therapeutics
| | - Pei Ge
- Senior Director of Pharmacology, Prime Medicine, Cambridge, MA
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Cao J, Qiu X, Gao Y, Cai L. Puerarin promotes the osteogenic differentiation of rat dental follicle cells by promoting the activation of the nitric oxide pathway. Tissue Cell 2021; 73:101601. [PMID: 34371290 DOI: 10.1016/j.tice.2021.101601] [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: 03/01/2021] [Revised: 07/23/2021] [Accepted: 07/25/2021] [Indexed: 01/02/2023]
Abstract
Puerarin regulates the osteoblast differentiation of umbilical cord mesenchymal stem cells. This study, hereby, explored the effects of puerarin on the osteogenic differentiation of dental follicle cells (DFCs) for the first time. Rat DFCs (rDFCs) were isolated and identified. After the rDFCs were treated by Puerarin and cultured in osteogenic induction medium, the viability, osteogenic differentiation, and the activities of alkaline phosphatase (ALP) and nitric oxide (NO) were detected. Besides, the secretion of cyclic guanosine monophosphate (cGMP) and expressions of collagen I, osteocalcin (OC), osteopontin (OPN), runt-related transcription factor 2 (RUNX2), soluble guanylate cyclase (SGC), and protein kinase G 1 (PKG-1) were further determined or quantified. Puerarin enhanced the viability and osteogenic differentiation, and increased the activities of ALP, NO, and cGMP and the expressions of Collagen I, OC, OPN, RUNX2, SGC, and PKG-1 in rDFCs. After the co-treatment with puerarin and L-NMMA (NO synthase inhibitor), the promotive effects of Puerarin on cell viability, osteogenic differentiation, and the expressions of collagen I, OC, OPN, RUNX2, SGC, and PKG-1 in rDFCs were reversed by L-NMMA. Puerarin boosted the osteogenic differentiation of rDFCs by activating the NO pathway.
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Affiliation(s)
- Jianyun Cao
- Department of Stomatology, First Affiliated Hospital, School of Medicine, Shihezi University, China
| | - Xuebing Qiu
- Department of Stomatology, First Affiliated Hospital, School of Medicine, Shihezi University, China.
| | - Yun Gao
- Department of Stomatology, First Affiliated Hospital, School of Medicine, Shihezi University, China
| | - Liangliang Cai
- Department of Stomatology, Hongxing Hospital, Division XIII Xinjiang Production and Construction Corps, China
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Tegin G, Gao Y, Hamlyn JM, Clark BJ, El-Mallakh RS. Inhibition of endogenous ouabain by atrial natriuretic peptide is a guanylyl cyclase independent effect. PLoS One 2021; 16:e0260131. [PMID: 34793577 PMCID: PMC8601428 DOI: 10.1371/journal.pone.0260131] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Accepted: 11/03/2021] [Indexed: 12/15/2022] Open
Abstract
Background Endogenous ouabain (EO) and atrial natriuretic peptide (ANP) are important in regulation of sodium and fluid balance. There is indirect evidence that ANP may be involved in the regulation of endogenous cardenolides. Methods H295R are human adrenocortical cells known to release EO. Cells were treated with ANP at physiologic concentrations or vehicle (0.1% DMSO), with or without guanylyl cyclase inhibitor 1,2,4 oxadiazolo[4,3-a]quinoxalin-1-one (ODQ). Cyclic guanosine monophosphate (cGMP), the intracellular second messenger of ANP, was measured by a chemiluminescent immunoassay and EO was measured by radioimmunoassay of C18 extracted samples. Results EO secretion is inhibited by ANP treatment, with the most prolonged inhibition (90 min vs ≤ 60 min) occurring at physiologic ANP concentrations (50 pg/mL). Inhibition of guanylyl cyclase with ODQ, also reduces EO secretion. The inhibitory effects on EO release in response to cotreatment with ANP and ODQ appeared to be additive. Conclusions ANP inhibits basal EO secretion, and it is unlikely that this is mediated through ANP-A or ANP-B receptors (the most common natriuretic peptide receptors) or their cGMP second messenger; the underlying mechanisms involved are not revealed in the current studies. The role of ANP in the control of EO synthesis and secretion in vivo requires further investigation.
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Affiliation(s)
- Gulay Tegin
- Department of Psychiatry and Behavioral Sciences, University of Louisville, Louisville, Kentucky, United States of America
| | - Yonglin Gao
- Department of Psychiatry and Behavioral Sciences, University of Louisville, Louisville, Kentucky, United States of America
| | - John M. Hamlyn
- Department of Physiology, School of Medicine, University of Maryland, Baltimore, Mississippi, United States of America
| | - Barbara J. Clark
- Department of Biochemistry and Molecular Genetics, University of Louisville, Louisville, Kentucky, United States of America
| | - Rif S. El-Mallakh
- Department of Psychiatry and Behavioral Sciences, University of Louisville, Louisville, Kentucky, United States of America
- * E-mail:
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Zhong C, Xu M, Boral S, Summer H, Lichtenberger FB, Erdoğan C, Gollasch M, Golz S, Persson PB, Schleifenbaum J, Patzak A, Khedkar PH. Age Impairs Soluble Guanylyl Cyclase Function in Mouse Mesenteric Arteries. Int J Mol Sci 2021; 22:ijms222111412. [PMID: 34768842 PMCID: PMC8584026 DOI: 10.3390/ijms222111412] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/15/2021] [Accepted: 10/18/2021] [Indexed: 11/16/2022] Open
Abstract
Endothelial dysfunction (ED) comes with age, even without overt vessel damage such as that which occurs in atherosclerosis and diabetic vasculopathy. We hypothesized that aging would affect the downstream signalling of the endothelial nitric oxide (NO) system in the vascular smooth muscle (VSM). With this in mind, resistance mesenteric arteries were isolated from 13-week (juvenile) and 40-week-old (aged) mice and tested under isometric conditions using wire myography. Acetylcholine (ACh)-induced relaxation was reduced in aged as compared to juvenile vessels. Pretreatment with L-NAME, which inhibits nitrix oxide synthases (NOS), decreased ACh-mediated vasorelaxation, whereby differences in vasorelaxation between groups disappeared. Endothelium-independent vasorelaxation by the NO donor sodium nitroprusside (SNP) was similar in both groups; however, SNP bolus application (10−6 mol L−1) as well as soluble guanylyl cyclase (sGC) activation by runcaciguat (10−6 mol L−1) caused faster responses in juvenile vessels. This was accompanied by higher cGMP concentrations and a stronger response to the PDE5 inhibitor sildenafil in juvenile vessels. Mesenteric arteries and aortas did not reveal apparent histological differences between groups (van Gieson staining). The mRNA expression of the α1 and α2 subunits of sGC was lower in aged animals, as was PDE5 mRNA expression. In conclusion, vasorelaxation is compromised at an early age in mice even in the absence of histopathological alterations. Vascular smooth muscle sGC is a key element in aged vessel dysfunction.
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Affiliation(s)
- Cheng Zhong
- Institute of Vegetative Physiology, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117 Berlin, Germany; (C.Z.); (M.X.); (F.-B.L.); (C.E.); (P.B.P.); (J.S.); (P.H.K.)
| | - Minze Xu
- Institute of Vegetative Physiology, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117 Berlin, Germany; (C.Z.); (M.X.); (F.-B.L.); (C.E.); (P.B.P.); (J.S.); (P.H.K.)
| | - Sengül Boral
- Institute of Pathology, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117 Berlin, Germany;
| | - Holger Summer
- Bayer AG, Research & Development, 42113 Wuppertal, Germany; (H.S.); (S.G.)
| | - Falk-Bach Lichtenberger
- Institute of Vegetative Physiology, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117 Berlin, Germany; (C.Z.); (M.X.); (F.-B.L.); (C.E.); (P.B.P.); (J.S.); (P.H.K.)
| | - Cem Erdoğan
- Institute of Vegetative Physiology, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117 Berlin, Germany; (C.Z.); (M.X.); (F.-B.L.); (C.E.); (P.B.P.); (J.S.); (P.H.K.)
| | - Maik Gollasch
- Experimental and Clinical Research Center (ECRC), Charité—Universitätsmedizin Berlin, 13125 Berlin, Germany;
- Department of Internal and Geriatric Medicine, University of Greifswald, Geriatric Medicine, 17475 Greifswald, Germany
| | - Stefan Golz
- Bayer AG, Research & Development, 42113 Wuppertal, Germany; (H.S.); (S.G.)
| | - Pontus B. Persson
- Institute of Vegetative Physiology, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117 Berlin, Germany; (C.Z.); (M.X.); (F.-B.L.); (C.E.); (P.B.P.); (J.S.); (P.H.K.)
| | - Johanna Schleifenbaum
- Institute of Vegetative Physiology, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117 Berlin, Germany; (C.Z.); (M.X.); (F.-B.L.); (C.E.); (P.B.P.); (J.S.); (P.H.K.)
| | - Andreas Patzak
- Institute of Vegetative Physiology, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117 Berlin, Germany; (C.Z.); (M.X.); (F.-B.L.); (C.E.); (P.B.P.); (J.S.); (P.H.K.)
- Correspondence:
| | - Pratik H. Khedkar
- Institute of Vegetative Physiology, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117 Berlin, Germany; (C.Z.); (M.X.); (F.-B.L.); (C.E.); (P.B.P.); (J.S.); (P.H.K.)
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50
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Fischer P, Mukherjee S, Schiewer E, Broser M, Bartl F, Hegemann P. The inner mechanics of rhodopsin guanylyl cyclase during cGMP-formation revealed by real-time FTIR spectroscopy. eLife 2021; 10:e71384. [PMID: 34665128 PMCID: PMC8575461 DOI: 10.7554/elife.71384] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 10/18/2021] [Indexed: 01/01/2023] Open
Abstract
Enzymerhodopsins represent a recently discovered class of rhodopsins which includes histidine kinase rhodopsin, rhodopsin phosphodiesterases, and rhodopsin guanylyl cyclases (RGCs). The regulatory influence of the rhodopsin domain on the enzyme activity is only partially understood and holds the key for a deeper understanding of intra-molecular signaling pathways. Here, we present a UV-Vis and FTIR study about the light-induced dynamics of a RGC from the fungus Catenaria anguillulae, which provides insights into the catalytic process. After the spectroscopic characterization of the late rhodopsin photoproducts, we analyzed truncated variants and revealed the involvement of the cytosolic N-terminus in the structural rearrangements upon photo-activation of the protein. We tracked the catalytic reaction of RGC and the free GC domain independently by UV-light induced release of GTP from the photolabile NPE-GTP substrate. Our results show substrate binding to the dark-adapted RGC and GC alike and reveal differences between the constructs attributable to the regulatory influence of the rhodopsin on the conformation of the binding pocket. By monitoring the phosphate rearrangement during cGMP and pyrophosphate formation in light-activated RGC, we were able to confirm the M state as the active state of the protein. The described setup and experimental design enable real-time monitoring of substrate turnover in light-activated enzymes on a molecular scale, thus opening the pathway to a deeper understanding of enzyme activity and protein-protein interactions.
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Affiliation(s)
- Paul Fischer
- Institute for Biology, Experimental Biophysics, Humboldt-Universität zu BerlinBerlinGermany
| | - Shatanik Mukherjee
- Institute of Biology, Biophysical Chemistry, Humboldt University of BerlinBerlinGermany
| | - Enrico Schiewer
- Institute for Biology, Experimental Biophysics, Humboldt-Universität zu BerlinBerlinGermany
| | - Matthias Broser
- Institute for Biology, Experimental Biophysics, Humboldt-Universität zu BerlinBerlinGermany
| | - Franz Bartl
- Institute of Biology, Biophysical Chemistry, Humboldt University of BerlinBerlinGermany
| | - Peter Hegemann
- Institute for Biology, Experimental Biophysics, Humboldt-Universität zu BerlinBerlinGermany
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