1
|
Manzor M, Koutsogiannaki S, DiBlasi M, Schaefers M, Priebe G, Yuki K. Cystic Fibrosis Mice Are Highly Susceptible to Repeated Acute Pseudomonas aeruginosa Pneumonia after Intranasal Inoculation. BIOMED RESEARCH INTERNATIONAL 2024; 2024:4769779. [PMID: 38347907 PMCID: PMC10861279 DOI: 10.1155/2024/4769779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 01/18/2024] [Accepted: 01/23/2024] [Indexed: 02/15/2024]
Abstract
Cystic fibrosis (CF) is a genetic disorder caused by mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) that controls chloride current. A number of different CFTR transgenic mouse lines have been developed and subjected to both acute and chronic infection models. However, prior studies showed no substantial differences in bacterial clearance between CF and non-CF mice after single inoculations. Here, using F508del transgenic CF mice, we examined the role of repeated acute Pseudomonas aeruginosa (PA) infection, with the second inoculation 7 days after the first. We found that CF mice were more susceptible to PA infection than non-CF mice following the second inoculation, with non-CF mice showing better neutrophil recruitment and effector functions. We further investigated the characteristics of lung immune cells using single-cell RNA sequencing, finding that non-CF lung neutrophils had more prominent upregulation of adhesion molecules including intercellular adhesion molecule-1 (ICAM-1) compared to CF lung neutrophils. Although people with CF are often colonized with bacteria and have high numbers of neutrophils in the airways during chronic infection, these data suggest that CF neutrophils have deficient effector functions in the setting of repeated acute infection.
Collapse
Affiliation(s)
- Mariel Manzor
- Department of Anesthesiology, Critical Care and Pain Medicine, Cardiac Anesthesia Division, Boston Children's Hospital, Boston, USA
| | - Sophia Koutsogiannaki
- Department of Anesthesiology, Critical Care and Pain Medicine, Cardiac Anesthesia Division, Boston Children's Hospital, Boston, USA
- Department of Anaesthesia, Harvard Medical School, Boston, USA
- Department of Immunology, Harvard Medical School, Boston, USA
- Broad Institute of MIT and Harvard, Cambridge, USA
| | - Marco DiBlasi
- Department of Anesthesiology, Critical Care and Pain Medicine, Critical Care Division, Boston Children's Hospital, Boston, USA
| | - Matthew Schaefers
- Department of Anaesthesia, Harvard Medical School, Boston, USA
- Department of Anesthesiology, Critical Care and Pain Medicine, Critical Care Division, Boston Children's Hospital, Boston, USA
| | - Gregory Priebe
- Department of Anaesthesia, Harvard Medical School, Boston, USA
- Broad Institute of MIT and Harvard, Cambridge, USA
- Department of Anesthesiology, Critical Care and Pain Medicine, Critical Care Division, Boston Children's Hospital, Boston, USA
- Department of Pediatrics, Division of Infectious Diseases, Boston Children's Hospital, Boston, USA
| | - Koichi Yuki
- Department of Anesthesiology, Critical Care and Pain Medicine, Cardiac Anesthesia Division, Boston Children's Hospital, Boston, USA
- Department of Anaesthesia, Harvard Medical School, Boston, USA
- Department of Immunology, Harvard Medical School, Boston, USA
- Broad Institute of MIT and Harvard, Cambridge, USA
| |
Collapse
|
2
|
Behe P, Foote JR, Levine AP, Platt CD, Chou J, Benavides F, Geha RS, Segal AW. The LRRC8A Mediated "Swell Activated" Chloride Conductance Is Dispensable for Vacuolar Homeostasis in Neutrophils. Front Pharmacol 2017; 8:262. [PMID: 28553230 PMCID: PMC5427109 DOI: 10.3389/fphar.2017.00262] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Accepted: 04/26/2017] [Indexed: 01/16/2023] Open
Abstract
The dialysis of human and mouse neutrophils in patch clamp experiments in the conventional whole-cell mode induces the emergence of a chloride (Cl-) current that appeared to be primarily regulated by cytoplasmic ionic strength. The characteristics of this current resembled that of the classical, and ubiquitous volume-sensitive outwardly rectifying Cl- current: strong outward rectification, selectivity sequence of the Eisenman1 type, insensitivity to external pH and strong inhibition by tamoxifen, DCPIB and WW781. We show that this current is essentially supported by the leucine rich repeat containing 8 A (LRRC8A); the naturally occurring LRRC8A truncation mutant in ebo/ebo mice drastically reduced Cl- conductance in neutrophils. Remarkably, the residual component presents a distinct pharmacology, but appears equally potentiated by reduced ionic strength. We have investigated the role of the LRRC8A-supported current in the ionic homeostasis of the phagosomal compartment. The vacuolar pH, measured using SNARF-1 labeled Candida albicans, normally rises because of NADPH oxidase activity, and this elevation is blocked by certain Cl- channel inhibitors. However, the pH rise remains intact in neutrophils from the ebo/ebo mice which also demonstrate preserved phagocytic and respiratory burst capacities and normal-sized vacuoles. Thus, the LRRC8A-dependent conductance of neutrophils largely accounts for their “swell activated” Cl- current, but is not required for homeostasis of the phagosomal killing compartment.
Collapse
Affiliation(s)
- Philippe Behe
- Division of Medicine, University College LondonLondon, UK
| | - Juliet R Foote
- Division of Medicine, University College LondonLondon, UK
| | - Adam P Levine
- Division of Medicine, University College LondonLondon, UK
| | - Craig D Platt
- Division of Immunology, Boston Children's Hospital, Harvard Medical School, BostonMA, USA
| | - Janet Chou
- Division of Immunology, Boston Children's Hospital, Harvard Medical School, BostonMA, USA
| | - Fernando Benavides
- Department of Epigenetics and Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, HoustonTX, USA
| | - Raif S Geha
- Division of Immunology, Boston Children's Hospital, Harvard Medical School, BostonMA, USA
| | | |
Collapse
|
3
|
Giambelluca MS, Gende OA. Cl⁻/HCO₃⁻ exchange activity in fMLP-stimulated human neutrophils. Biochem Biophys Res Commun 2011; 409:567-71. [PMID: 21605548 DOI: 10.1016/j.bbrc.2011.05.046] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2011] [Accepted: 05/08/2011] [Indexed: 01/11/2023]
Abstract
It is well known that chemotactic agents active Na(+)/H(+) exchanger, increasing intracellular pH of neutrophils, but their effect on bicarbonate transporters have not been established yet. To study the effect of fMLP on the activity of Cl(-)/HCO(3)(-) exchange, the rate of pH recovery after acute Cl(-) readmission in cell subjected to an alkaline load by CO(2) washout in a Cl-free medium was measured. The activity of the exchanger was reduced to 72% of control when cells were pre-incubated for 5 min with 0.1 μM fMLP and reached 48% of control in steady state after acute exposure. After extracellular bicarbonate or TMA addition the rate recovery of intracellular pH was reduce at 72% and at 84%, respectively. The inhibitory effect on the intracellular pH recovery was not affected by blockers of Na(+)/H(+) exchange. We conclude from these studies that an increase of pH(i) produced for this chemotactic agent is facilitated by the simultaneous activation of Na(+)/H(+) exchange and inhibition of Cl(-)/HCO(3)(-) exchange in neutrophils.
Collapse
Affiliation(s)
- Miriam S Giambelluca
- Centro de Investigaciones Cardiovasculares, CCT La Plata, CONICET, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, 60 y 120, 1900 La Plata, Argentina.
| | | |
Collapse
|
4
|
Busetto S, Trevisan E, Decleva E, Dri P, Menegazzi R. Chloride movements in human neutrophils during phagocytosis: characterization and relationship to granule release. THE JOURNAL OF IMMUNOLOGY 2007; 179:4110-24. [PMID: 17785850 DOI: 10.4049/jimmunol.179.6.4110] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Chloride ion efflux is an early event occurring after exposure of human neutrophils to several soluble agonists. Under these circumstances, a rapid and reversible fall in the high basal intracellular chloride (Cl-i) levels is observed. This event is thought to play a crucial role in the modulation of several critical neutrophil responses including activation and up-regulation of adhesion molecules, cell attachment and spreading, cytoplasmic alkalinization, and activation of the respiratory burst. At present, however, no data are available on chloride ion movements during neutrophil phagocytosis. In this study, we provide evidence that phagocytosis of Candida albicans opsonized with either whole serum, complement-derived opsonins, or purified human IgG elicits an early and long-lasting Cl- efflux accompanied by a marked, irreversible loss of Cl-i. Simultaneous assessment of Cl- efflux and phagocytosis in cytochalasin D-treated neutrophils indicated that Cl- efflux occurs without particle ingestion. These results suggest that engagement of immune receptors is sufficient to promote chloride ion movements. Several structurally unrelated chloride channel blockers inhibited phagocytosis-induced Cl- efflux as well as the release of azurophilic-but not specific-granules. It implicates that different neutrophil secretory compartments display distinct sensitivity to Cl-i modifications. Intriguingly, inhibitors of Cl- exchange inhibited cytosolic Ca2+ elevation, whereas Cl- efflux was not impaired in Ca2+-depleted neutrophils. We also show that FcgammaR(s)- and CR3/CR1-mediated Cl- efflux appears to be dependent on protein tyrosine phosphorylation but independent of PI3K and phospholipase C activation.
Collapse
Affiliation(s)
- Sara Busetto
- Department of Physiology and Pathology, University of Trieste, Trieste, Italy
| | | | | | | | | |
Collapse
|
5
|
Jiang B, Hattori N, Liu B, Nakayama Y, Kitagawa K, Inagaki C. Suppression of cell proliferation with induction of p21 by Cl(-) channel blockers in human leukemic cells. Eur J Pharmacol 2004; 488:27-34. [PMID: 15044032 DOI: 10.1016/j.ejphar.2004.02.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2003] [Revised: 01/27/2004] [Accepted: 02/06/2004] [Indexed: 10/26/2022]
Abstract
The existence of Cl(-) channels in lymphocytes and neutrophils has been increasingly recognized, but the biological functions are not yet clear. We examined the effects of Cl(-) channel blockers on the cell proliferation and the cell cycle of human leukemic cell lines. The growth of leukemic cells was suppressed most efficiently by NPPB (5-nitro-2-(3-phenylpropylamino) benzoic acid), partially by 9-AC (9-anthracenecarboxylic acid) and tamoxifen, but not by stilbene compounds. NPPB increased the G0/G1 population and induced the expression of p21, one of the critical molecules for G1/S checkpoint. Antisense oligonucleotide for a NPPB-sensitive and stilbene-insensitive Cl(-) channel, ClC-2, sufficiently suppressed the ClC-2 protein synthesis, but did not affect the growth of leukemic cells. These findings suggest that NPPB-sensitive and stilbene-insensitive Cl(-) channels other than ClC-2 play important roles in cell cycles and cell proliferation of human leukemic cells.
Collapse
Affiliation(s)
- Baohong Jiang
- Department of Pharmacology, Kansai Medical University, 10-15 Fumizono-cho, Moriguchi Osaka 570-8506, Japan
| | | | | | | | | | | |
Collapse
|
6
|
Perez-Cornejo P, Arreola J, Law FY, Schultz JB, Knauf PA. Volume-Sensitive Chloride Channels Do Not Mediate Activation-Induced Chloride Efflux in Human Neutrophils. THE JOURNAL OF IMMUNOLOGY 2004; 172:6988-93. [PMID: 15153519 DOI: 10.4049/jimmunol.172.11.6988] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Many agents that activate neutrophils, enabling them to adhere to venular walls at sites of inflammation, cause a rapid Cl(-) efflux. This Cl(-) efflux and the increase in the number and affinity of beta(2) integrin surface adhesion molecules (up-regulation) are all inhibited by ethacrynic acid and certain aminomethyl phenols. The effectiveness of the latter compounds correlates with their inhibition of swelling-activated Cl(-) channels (I(Clvol)), suggesting that I(Clvol) mediates the activator-induced Cl(-) efflux. To test this hypothesis, we used whole-cell patch clamp in hypotonic media to examine the effects of inhibitors of up-regulation on I(Clvol) in neutrophils and promyelocytic leukemic HL-60 cells. Both the channel blocker 5-nitro-2-(3-phenylpropylamino)benzoic acid and [3-methyl-1-p-sulfophenyl-5-pyrazolone-(4)]-[1,3-dibutylbarbituric acid]-pentamethine oxonol (WW781), a nonpenetrating oxonol, inhibited I(Clvol) at concentrations similar to those that inhibit beta(2) integrin up-regulation. However, ethacrynic acid, at the same concentration that inhibits activator-induced Cl(-) efflux and up-regulation, had no effect on I(Clvol) and swelling-activated Cl(-) efflux, providing evidence against the involvement of I(Clvol) in the activator-induced Cl(-) efflux.
Collapse
Affiliation(s)
- Patricia Perez-Cornejo
- Department of Biochemistry and Biophysics, School of Medicine, Aab Institute of Biomedical Sciences, University of Rochester, Rochester, NY 14642, USA
| | | | | | | | | |
Collapse
|
7
|
Abstract
Proton channels exist in a wide variety of membrane proteins where they transport protons rapidly and efficiently. Usually the proton pathway is formed mainly by water molecules present in the protein, but its function is regulated by titratable groups on critical amino acid residues in the pathway. All proton channels conduct protons by a hydrogen-bonded chain mechanism in which the proton hops from one water or titratable group to the next. Voltage-gated proton channels represent a specific subset of proton channels that have voltage- and time-dependent gating like other ion channels. However, they differ from most ion channels in their extraordinarily high selectivity, tiny conductance, strong temperature and deuterium isotope effects on conductance and gating kinetics, and insensitivity to block by steric occlusion. Gating of H(+) channels is regulated tightly by pH and voltage, ensuring that they open only when the electrochemical gradient is outward. Thus they function to extrude acid from cells. H(+) channels are expressed in many cells. During the respiratory burst in phagocytes, H(+) current compensates for electron extrusion by NADPH oxidase. Most evidence indicates that the H(+) channel is not part of the NADPH oxidase complex, but rather is a distinct and as yet unidentified molecule.
Collapse
Affiliation(s)
- Thomas E Decoursey
- Department of Molecular Biophysics and Physiology, Rush Presbyterian St. Luke's Medical Center, Chicago, Illinois 60612, USA.
| |
Collapse
|
8
|
Menegazzi R, Busetto S, Decleva E, Cramer R, Dri P, Patriarca P. Triggering of Chloride Ion Efflux from Human Neutrophils as a Novel Function of Leukocyte β2 Integrins: Relationship with Spreading and Activation of the Respiratory Burst. THE JOURNAL OF IMMUNOLOGY 1999. [DOI: 10.4049/jimmunol.162.1.423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
PMN residing on immobilized fibronectin have been shown to respond to TNF with an intense and long lasting Cl− efflux that leads to a marked decrease of the unusually high basal Cl− content of these phagocytes. The finding that this Cl− efflux depends, at least in part, on β2 integrin engagement stimulated the present investigation, which addresses the question as to whether β2 integrins per se, in the absence of PMN agonists, are able to generate signals triggering Cl− efflux. We induced β2 integrin cross-linking by plating PMN onto surface-bound mAbs directed against either the common β-chain (CD18) or the individual α-chains (CD11a, CD11b, CD11c) of LFA-1, CR3, and gp150/95. Anti-CD18 mAbs triggered a marked release of Cl− ions, which was accompanied by spreading and activation of the respiratory burst. Cross-linking of gp150/95 and LFA-1 generated the most powerful signals for the activation of Cl− efflux. The results of three independent experimental approaches, i.e., kinetic studies, use of Cl− transport inhibitors, and modulation of Cl− efflux with different amounts of anti-β2 integrin mAbs, indicated that Cl− efflux regulates both spreading and respiratory burst triggered by β2 integrin cross-linking. Cl− efflux appears to be independent on either alterations of [Ca2+]i or changes in the plasma membrane potential and shows sensitivity to a raise in pHi. This study uncovers a new signaling ability of β2 integrins and contributes to highlight the role of Cl− efflux in the outside-in signal transduction pathway regulating adherence-dependent PMN responses.
Collapse
Affiliation(s)
- Renzo Menegazzi
- Department of Physiology and Pathology, University of Trieste, Trieste, Italy
| | - Sara Busetto
- Department of Physiology and Pathology, University of Trieste, Trieste, Italy
| | - Eva Decleva
- Department of Physiology and Pathology, University of Trieste, Trieste, Italy
| | - Rita Cramer
- Department of Physiology and Pathology, University of Trieste, Trieste, Italy
| | - Pietro Dri
- Department of Physiology and Pathology, University of Trieste, Trieste, Italy
| | - Pierluigi Patriarca
- Department of Physiology and Pathology, University of Trieste, Trieste, Italy
| |
Collapse
|
9
|
Marsh SJ, Trouslard J, Leaney JL, Brown DA. Synergistic regulation of a neuronal chloride current by intracellular calcium and muscarinic receptor activation: a role for protein kinase C. Neuron 1995; 15:729-37. [PMID: 7546751 DOI: 10.1016/0896-6273(95)90160-4] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Using perforated patch recordings in combination with intracellular Ca2+ ([Ca2+]i) fluorescence measurements, we have identified a delayed Ca(2+)-dependent Cl- current in a mammalian sympathetic ganglion cell. This Cl- current is induced by the synergistic action of Ca2+ and diacylglycerol (DAG) and is blocked by inhibitors of protein kinase C. As a result, the current can be induced by acetylcholine through the conjoint activation of nicotinic receptors (to produce a rise in [Ca2+]i) and muscarinic receptors (to generate DAG). This demonstrates an unusual form of synergism between the two effects of a single transmitter mediated via separate receptors operating within a time scale that could be of physiological significance.
Collapse
Affiliation(s)
- S J Marsh
- Department of Pharmacology, University College London, England
| | | | | | | |
Collapse
|
10
|
Schumann MA, Leung CC, Raffin TA. Activation of NADPH-oxidase and its associated whole-cell H+ current in human neutrophils by recombinant human tumor necrosis factor alpha and formyl-methionyl-leucyl-phenylalanine. J Biol Chem 1995; 270:13124-32. [PMID: 7539423 DOI: 10.1074/jbc.270.22.13124] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Proton accumulation and efflux associated specifically with NADPH oxidation in neutrophils remains to be elucidated. Using confocal fluorescence and patch-clamp recordings from single human neutrophils, in the presence of protein kinase C inhibitors, we studied the transient cytosolic acidification and whole-cell H+ current induced by N-formyl-methionyl-leucyl-phenylalanine (fMLP) and recombinant human tumor necrosis factor alpha (rhTNF alpha). Intracellular pH changes were monitored utilizing the ratiometric imaging of the dual emission fluoroprobe, carboxyseminaphthorhodafluor-1, AM acetate. Bath application of 1000 units/ml rhTNF alpha or 0.1 microM fMLP changed the fluorescence of fluoroprobe-loaded cells, indicating generation of cytosolic H+ ions. In the absence of Ca2+ in the pipette solution, exposure of cells to rhTNF alpha or fMLP for 10 s activated voltage-dependent H+ currents. From tail current analysis, the threshold voltage for H+ current activation was approximately -50 mV. These fMLP- or rhTNF alpha-activated voltage-dependent H+ currents were augmented further in the presence of 0.1 mM of NADPH in the pipette solution, and they were inhibited by bath application of 50 microM of apocynin, an NADPH oxidase inhibitor. These results indicate that rhTNF alpha- or fMLP-induced NADPH oxidase in human neutrophils gives rise to the activation of voltage-dependent H+ currents.
Collapse
Affiliation(s)
- M A Schumann
- Division of Pulmonary and Critical Care Medicine, Stanford University School of Medicine, California 94305-5236, USA
| | | | | |
Collapse
|