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Ousingsawat J, Centeio R, Reyne N, McCarron A, Cmielewski P, Schreiber R, diStefano G, Römermann D, Seidler U, Donnelley M, Kunzelmann K. Inhibition of mucus secretion by niclosamide and benzbromarone in airways and intestine. Sci Rep 2024; 14:1464. [PMID: 38233410 PMCID: PMC10794189 DOI: 10.1038/s41598-024-51397-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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 01/04/2024] [Indexed: 01/19/2024] Open
Abstract
The Ca2+ activated Cl- channel TMEM16A (anoctamin 1; ANO1) is expressed in secretory epithelial cells of airways and intestine. Previous studies provided evidence for a role of ANO1 in mucus secretion. In the present study we investigated the effects of the two ANO1-inhibitors niclosamide (Niclo) and benzbromarone (Benz) in vitro and in vivo in mouse models for cystic fibrosis (CF) and asthma. In human CF airway epithelial cells (CFBE), Ca2+ increase and activation of ANO1 by adenosine triphosphate (ATP) or ionomycin was strongly inhibited by 200 nM Niclo and 1 µM Benz. In asthmatic mice airway mucus secretion was inhibited by intratracheal instillation of Niclo or Benz. In homozygous F508del-cftr mice, intestinal mucus secretion and infiltration by CD45-positive cells was inhibited by intraperitoneal injection of Niclo (13 mg/kg/day for 7 days). In homozygous F508del-cftr rats intestinal mucus secretion was inhibited by oral application of Benz (5 mg/kg/day for 60 days). Taken together, well tolerated therapeutic concentrations of niclosamide and benzbromarone corresponding to plasma levels of treated patients, inhibit ANO1 and intracellular Ca2+ signals and may therefore be useful in inhibiting mucus hypersecretion and mucus obstruction in airways and intestine of patients suffering from asthma and CF, respectively.
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Affiliation(s)
- Jiraporn Ousingsawat
- Physiological Institute, University of Regensburg, University Street 31, 93053, Regensburg, Germany
| | - Raquel Centeio
- Physiological Institute, University of Regensburg, University Street 31, 93053, Regensburg, Germany
| | - Nicole Reyne
- Robinson Research Institute and Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
| | - Alexandra McCarron
- Robinson Research Institute and Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
| | - Patricia Cmielewski
- Robinson Research Institute and Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
| | - Rainer Schreiber
- Physiological Institute, University of Regensburg, University Street 31, 93053, Regensburg, Germany
| | - Gabriella diStefano
- Department of Gastroenterology, Hannover Medical School, 30625, Hannover, Germany
| | - Dorothee Römermann
- Department of Gastroenterology, Hannover Medical School, 30625, Hannover, Germany
| | - Ursula Seidler
- Department of Gastroenterology, Hannover Medical School, 30625, Hannover, Germany
| | - Martin Donnelley
- Robinson Research Institute and Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
| | - Karl Kunzelmann
- Physiological Institute, University of Regensburg, University Street 31, 93053, Regensburg, Germany.
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Reyne N, McCarron A, Cmielewski P, Parsons D, Donnelley M. To bead or not to bead: A review of Pseudomonas aeruginosa lung infection models for cystic fibrosis. Front Physiol 2023; 14:1104856. [PMID: 36824474 PMCID: PMC9942929 DOI: 10.3389/fphys.2023.1104856] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 01/25/2023] [Indexed: 02/10/2023] Open
Abstract
Cystic fibrosis (CF) lung disease is characterised by recurring bacterial infections resulting in inflammation, lung damage and ultimately respiratory failure. Pseudomonas aeruginosa is considered one of the most important lung pathogens in those with cystic fibrosis. While multiple cystic fibrosis animal models have been developed, many fail to mirror the cystic fibrosis lung disease of humans, including the colonisation by opportunistic environmental pathogens. Delivering bacteria to the lungs of animals in different forms is a way to model cystic fibrosis bacterial lung infections and disease. This review presents an overview of previous models, and factors to consider when generating a new P. aeruginosa lung infection model. The future development and application of lung infection models that more accurately reflect human cystic fibrosis lung disease has the potential to assist in understanding the pathophysiology of cystic fibrosis lung disease and for developing treatments.
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Affiliation(s)
- Nicole Reyne
- Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia,Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia,Respiratory and Sleep Medicine, Women’s and Children’s Hospital, North Adelaide, SA, Australia,*Correspondence: Nicole Reyne,
| | - Alexandra McCarron
- Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia,Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia,Respiratory and Sleep Medicine, Women’s and Children’s Hospital, North Adelaide, SA, Australia
| | - Patricia Cmielewski
- Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia,Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia,Respiratory and Sleep Medicine, Women’s and Children’s Hospital, North Adelaide, SA, Australia
| | - David Parsons
- Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia,Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia,Respiratory and Sleep Medicine, Women’s and Children’s Hospital, North Adelaide, SA, Australia
| | - Martin Donnelley
- Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia,Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia,Respiratory and Sleep Medicine, Women’s and Children’s Hospital, North Adelaide, SA, Australia
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Drysdale V, Cmielewski P, Donnelley M, Reyne N, Parsons D, McCarron A. Comparison of physical perturbation devices for enhancing lentiviral vector-mediated gene transfer to the airway epithelium. Hum Gene Ther 2022; 33:1062-1072. [PMID: 35920214 DOI: 10.1089/hum.2022.086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Natural airway defences currently impede the efficacy of viral vector-mediated airway gene therapy. Conditioning airways prior to vector delivery can disrupt these barriers, improving viral vector access to target receptors and airway stem cells. This study aimed to assess and quantify the in vivo histological and gene transfer effects of physical perturbation devices to identify effective conditioning approaches. A range of flexible wire baskets with varying configurations, a Brush, biopsy forceps, and a balloon catheter were examined. We first evaluated the histological effects of physical perturbation devices in rat tracheas that were excised 10 minutes after conditioning. Based on the histological findings, a selection of devices were used to condition rat tracheas in vivo before delivering a lentiviral vector containing the LacZ reporter gene. After 7 days, excised tracheas were X-gal processed and examined en face to quantify the area of LacZ staining. Histological observations 10 minutes after conditioning found that physical perturbation dislodged cells from the basement membrane to varying degrees, with some producing significant levels of epithelial cell removal. When a subset of devices were assessed for their ability to enhance gene transfer, only the NGage® wire basket (Cook Medical) produced a significant increase in the proportion of X-gal-stained area when compared to unconditioned tracheas (8-fold, p = 0.00025). These results suggest that a range of factors contribute to perturbation-enhanced gene transfer. Overall, this study supports existing evidence that physical perturbation can assist airway gene transfer, and will help to identify the characteristics of an effective device for airway gene therapy.
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Affiliation(s)
- Victoria Drysdale
- The University of Adelaide, Adelaide Medical School , Adelaide, South Australia, Australia.,The University of Adelaide, Robinson Research Institute , Adelaide, South Australia, Australia.,Women's and Children's Hospital Adelaide, North Adelaide, South Australia, Australia;
| | - Patricia Cmielewski
- The University of Adelaide, Adelaide Medical School , Adelaide, South Australia, Australia.,The University of Adelaide, Robinson Research Institute , Adelaide, South Australia, Australia.,Women's and Children's Hospital Adelaide, North Adelaide, South Australia, Australia;
| | - Martin Donnelley
- The University of Adelaide, Adelaide Medical School , Adelaide, South Australia, Australia.,The University of Adelaide, Robinson Research Institute , Adelaide, South Australia, Australia.,Women's and Children's Hospital Adelaide, Respiratory and Sleep Medicine , North Adelaide, South Australia, Australia;
| | - Nicole Reyne
- The University of Adelaide, Adelaide Medical School , Adelaide, South Australia, Australia.,The University of Adelaide, Robinson Research Institute , Adelaide, South Australia, Australia.,Women's and Children's Hospital Adelaide, North Adelaide, South Australia, Australia;
| | - David Parsons
- The University of Adelaide, Adelaide Medical School , Adelaide, South Australia, Australia.,The University of Adelaide, Robinson Research Institute, Adelaide, South Australia, Australia.,Women's and Children's Hospital Adelaide, Respiratory and Sleep Medicine, North Adelaide, South Australia, Australia;
| | - Alexandra McCarron
- The University of Adelaide, Adelaide Medical School , Adelaide, South Australia, Australia.,The University of Adelaide, Robinson Research Institute , Adelaide, South Australia, Australia.,Women's and Children's Hospital Adelaide, Respiratory and Sleep Medicine , North Adelaide, South Australia, Australia;
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Donnelley M, Cmielewski P, Morgan K, Delhove J, Reyne N, McCarron A, Rout-Pitt N, Drysdale V, Carpentieri C, Spiers K, Takeuchi A, Uesugi K, Yagi N, Parsons D. Improved in-vivo airway gene transfer via magnetic-guidance, with protocol development informed by synchrotron imaging. Sci Rep 2022; 12:9000. [PMID: 35637239 PMCID: PMC9151774 DOI: 10.1038/s41598-022-12895-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 05/11/2022] [Indexed: 11/24/2022] Open
Abstract
Gene vectors to treat cystic fibrosis lung disease should be targeted to the conducting airways, as peripheral lung transduction does not offer therapeutic benefit. Viral transduction efficiency is directly related to the vector residence time. However, delivered fluids such as gene vectors naturally spread to the alveoli during inspiration, and therapeutic particles of any form are rapidly cleared via mucociliary transit. Extending gene vector residence time within the conducting airways is important, but hard to achieve. Gene vector conjugated magnetic particles that can be guided to the conducting airway surfaces could improve regional targeting. Due to the challenges of in-vivo visualisation, the behaviour of such small magnetic particles on the airway surface in the presence of an applied magnetic field is poorly understood. The aim of this study was to use synchrotron imaging to visualise the in-vivo motion of a range of magnetic particles in the trachea of anaesthetised rats to examine the dynamics and patterns of individual and bulk particle behaviour in-vivo. We also then assessed whether lentiviral-magnetic particle delivery in the presence of a magnetic field increases transduction efficiency in the rat trachea. Synchrotron X-ray imaging revealed the behaviour of magnetic particles in stationary and moving magnetic fields, both in-vitro and in-vivo. Particles could not easily be dragged along the live airway surface with the magnet, but during delivery deposition was focussed within the field of view where the magnetic field was the strongest. Transduction efficiency was also improved six-fold when the lentiviral-magnetic particles were delivered in the presence of a magnetic field. Together these results show that lentiviral-magnetic particles and magnetic fields may be a valuable approach for improving gene vector targeting and increasing transduction levels in the conducting airways in-vivo.
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Farrow N, Cmielewski P, Reyne N, McCarron A, Rout-Pitt N, Carpentieri C, Parsons D, Donnelley M. 593: Neonatal airway gene therapy delivery to enable effective adult dosing: A lentiviral vector study. J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)02016-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Donnelley M, Reyne N, McCarron A, Cmielewski P, Boog B, Khanlou S, Parson D. 669: Phe508del and knockout cystic fibrosis rat lung phenotype assessment via flexiVent and x-ray velocimetry. J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)02092-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Reyne N, Cmielewski P, McCarron A, Delhove J, Parsons D, Donnelley M. Single-Dose Lentiviral Mediated Gene Therapy Recovers CFTR Function in Cystic Fibrosis Knockout Rats. Front Pharmacol 2021; 12:682299. [PMID: 34084147 PMCID: PMC8167067 DOI: 10.3389/fphar.2021.682299] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 05/04/2021] [Indexed: 01/23/2023] Open
Abstract
Cystic fibrosis (CF) is a genetic disease caused by mutations in the CF transmembrane conductance regulator (CFTR) gene, resulting in defective ion transport in the airways. Addition of a functioning CFTR gene into affected airway cells has the potential to be an effective treatment for lung disease. The therapeutic efficacy of airway gene transfer can be quantified in animal models by assessing ion transport in the treated nasal epithelium using the nasal potential difference (PD) measurement technique. The nasal PD technique is routinely used in CF mice, however when applied to a recently developed CF rat model those animals did not tolerate the initial nasal PD assessment, therefore the procedure was firstly optimised in rats. This study evaluated the effect of lentiviral (LV)-mediated CFTR airway gene delivery on nasal PD in a CFTR knockout rat model. LV gene vector containing the CFTR gene tagged with a V5 epitope tag (LV-V5-CFTR) was delivered to the nasal epithelium of CF rats, and one week later nasal PD was analysed. This study demonstrated for the first time that LV-V5-CFTR treatment produced a mean correction of 46% towards wild-type chloride response in treated CF rats. Transduced cells were subsequently identifiable using V5 immunohistochemical staining. These findings in the nose validate the use of airway gene therapy for future lung based experiments.
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Affiliation(s)
- Nicole Reyne
- Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia.,Respiratory and Sleep Medicine, Women's and Children's Hospital, North Adelaide, SA, Australia.,Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia
| | - Patricia Cmielewski
- Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia.,Respiratory and Sleep Medicine, Women's and Children's Hospital, North Adelaide, SA, Australia.,Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia
| | - Alexandra McCarron
- Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia.,Respiratory and Sleep Medicine, Women's and Children's Hospital, North Adelaide, SA, Australia.,Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia
| | - Juliette Delhove
- Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia.,Respiratory and Sleep Medicine, Women's and Children's Hospital, North Adelaide, SA, Australia.,Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia
| | - David Parsons
- Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia.,Respiratory and Sleep Medicine, Women's and Children's Hospital, North Adelaide, SA, Australia.,Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia
| | - Martin Donnelley
- Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia.,Respiratory and Sleep Medicine, Women's and Children's Hospital, North Adelaide, SA, Australia.,Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia
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McCarron A, Cmielewski P, Reyne N, McIntyre C, Finnie J, Craig F, Rout-Pitt N, Delhove J, Schjenken JE, Chan HY, Boog B, Knight E, Gilmore RC, O'Neal WK, Boucher RC, Parsons D, Donnelley M. Phenotypic Characterization and Comparison of Cystic Fibrosis Rat Models Generated Using CRISPR/Cas9 Gene Editing. Am J Pathol 2020; 190:977-993. [PMID: 32084371 DOI: 10.1016/j.ajpath.2020.01.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 12/20/2019] [Accepted: 01/21/2020] [Indexed: 01/10/2023]
Abstract
Animal models of cystic fibrosis (CF) are essential for investigating disease mechanisms and trialing potential therapeutics. This study generated two CF rat models using clustered regularly interspaced short palindromic repeats/clustered regularly interspaced short palindromic repeats-associated protein 9 gene editing. One rat model carries the common human Phe508del (ΔF508) CF transmembrane conductance regulator (CFTR) mutation, whereas the second is a CFTR knockout model. Phenotype was characterized using a range of functional and histologic assessments, including nasal potential difference to measure electrophysiological function in the upper airways, RNAscope in situ hybridization and quantitative PCR to assess CFTR mRNA expression in the lungs, immunohistochemistry to localize CFTR protein in the airways, and histopathologic assessments in a range of tissues. Both rat models revealed a range of CF manifestations, including reduced survival, intestinal obstruction, bioelectric defects in the nasal epithelium, histopathologic changes in the trachea, large intestine, and pancreas, and abnormalities in the development of the male reproductive tract. The CF rat models presented herein will prove useful for longitudinal assessments of pathophysiology and therapeutics.
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Affiliation(s)
- Alexandra McCarron
- Department of Respiratory and Sleep Medicine, Women's and Children's Hospital, North Adelaide, South Australia, Australia; Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia; Robinson Research Institute, University of Adelaide, Adelaide, South Australia, Australia.
| | - Patricia Cmielewski
- Department of Respiratory and Sleep Medicine, Women's and Children's Hospital, North Adelaide, South Australia, Australia; Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia; Robinson Research Institute, University of Adelaide, Adelaide, South Australia, Australia
| | - Nicole Reyne
- Department of Respiratory and Sleep Medicine, Women's and Children's Hospital, North Adelaide, South Australia, Australia; Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia; Robinson Research Institute, University of Adelaide, Adelaide, South Australia, Australia
| | - Chantelle McIntyre
- Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia; Genetics and Molecular Pathology, SA Pathology at Women's and Children's Hospital, North Adelaide, South Australia, Australia
| | - John Finnie
- Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia; Division of Anatomical Pathology, SA Pathology, Adelaide, South Australia, Australia
| | - Fiona Craig
- Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia; Genetics and Molecular Pathology, SA Pathology at Women's and Children's Hospital, North Adelaide, South Australia, Australia
| | - Nathan Rout-Pitt
- Department of Respiratory and Sleep Medicine, Women's and Children's Hospital, North Adelaide, South Australia, Australia; Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia; Robinson Research Institute, University of Adelaide, Adelaide, South Australia, Australia
| | - Juliette Delhove
- Department of Respiratory and Sleep Medicine, Women's and Children's Hospital, North Adelaide, South Australia, Australia; Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia; Robinson Research Institute, University of Adelaide, Adelaide, South Australia, Australia
| | - John E Schjenken
- Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia; Robinson Research Institute, University of Adelaide, Adelaide, South Australia, Australia
| | - Hon Y Chan
- Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia; Robinson Research Institute, University of Adelaide, Adelaide, South Australia, Australia
| | - Bernadette Boog
- Department of Respiratory and Sleep Medicine, Women's and Children's Hospital, North Adelaide, South Australia, Australia; Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia; Robinson Research Institute, University of Adelaide, Adelaide, South Australia, Australia
| | - Emma Knight
- Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia; Robinson Research Institute, University of Adelaide, Adelaide, South Australia, Australia
| | - Rodney C Gilmore
- Marsico Lung Institute/Cystic Fibrosis Research Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Wanda K O'Neal
- Marsico Lung Institute/Cystic Fibrosis Research Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Richard C Boucher
- Marsico Lung Institute/Cystic Fibrosis Research Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - David Parsons
- Department of Respiratory and Sleep Medicine, Women's and Children's Hospital, North Adelaide, South Australia, Australia; Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia; Robinson Research Institute, University of Adelaide, Adelaide, South Australia, Australia
| | - Martin Donnelley
- Department of Respiratory and Sleep Medicine, Women's and Children's Hospital, North Adelaide, South Australia, Australia; Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia; Robinson Research Institute, University of Adelaide, Adelaide, South Australia, Australia.
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