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Kantasrila R, Pandith H, Balslev H, Wangpakapattanawong P, Panyadee P, Inta A. Ethnobotany and phytochemistry of plants used to treat musculoskeletal disorders among Skaw Karen, Thailand. PHARMACEUTICAL BIOLOGY 2024; 62:62-104. [PMID: 38131672 PMCID: PMC10763916 DOI: 10.1080/13880209.2023.2292261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 12/03/2023] [Indexed: 12/23/2023]
Abstract
CONTEXT Musculoskeletal system disorders (MSD) are prevalent around the world affecting the health of people, especially farmers who work hard in the field. Karen farmers use many medicinal plants to treat MSD. OBJECTIVE This study collects traditional plant-based remedies used by the Skaw Karen to treat MSD and evaluates their active phytochemical compounds. MATERIALS AND METHODS The ethnobotanical study was conducted in six Karen villages in Chiang Mai province using semi-structured interviews were of 120 informants. The data were analyzed using ethnobotanical indices including use values (UV), choice value (CV), and informant consensus factor (ICF). Consequently, the 20 most important species, according to the indices, were selected for phytochemical analysis using LC-MS/MS. RESULTS A total of 3731 use reports were obtained for 139 species used in MSD treatment. The most common ailments treated with those plants were muscular pain. A total of 172 high-potential active compounds for MSD treatment were identified. Most of them were flavonoids, terpenoids, alkaloids, and steroids. The prevalent phytochemical compounds related to treat MSD were 9-hydroxycalabaxanthone, dihydrovaltrate, morroniside, isoacteoside, lithocholic acid, pomiferin, cucurbitacin E, leonuriside A, liriodendrin, and physalin E. Sambucus javanica Reinw. ex Blume (Adoxaceae), Betula alnoides Buch.-Ham. ex D.Don (Betulaceae), Blumea balsamifera (L.) DC. (Asteraceae), Plantago major L. (Plantaginaceae) and Flacourtia jangomas (Lour.) Raeusch. (Salicaceae) all had high ethnobotanical index values and many active compounds. DISCUSSION AND CONCLUSIONS This study provides valuable information, demonstrating low-cost medicine plants that are locally available. It is a choice of treatment for people living in remote areas.
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Affiliation(s)
- Rapeeporn Kantasrila
- Department of Biology, Faculty of Science, Chiang Mai University, Thailand
- The Botanical Garden Organization, Queen Sirikit Botanic Garden, Chiang Mai, Thailand
| | | | - Henrik Balslev
- Department of Biology, Aarhus University, Aarhus C, Denmark
| | | | - Prateep Panyadee
- The Botanical Garden Organization, Queen Sirikit Botanic Garden, Chiang Mai, Thailand
| | - Angkhana Inta
- Department of Biology, Faculty of Science, Chiang Mai University, Thailand
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Esposito A, Rossi A, Stabile M, Pinto G, De Fino I, Melessike M, Tamanini A, Cabrini G, Lippi G, Aureli M, Loberto N, Renda M, Galietta LJV, Amoresano A, Dechecchi MC, De Gregorio E, Bragonzi A, Guaragna A. Assessing the Potential of N-Butyl-l-deoxynojirimycin (l-NBDNJ) in Models of Cystic Fibrosis as a Promising Antibacterial Agent. ACS Pharmacol Transl Sci 2024; 7:1807-1822. [PMID: 38898954 PMCID: PMC11184606 DOI: 10.1021/acsptsci.4c00044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 04/29/2024] [Accepted: 04/30/2024] [Indexed: 06/21/2024]
Abstract
Over the past few years, l-iminosugars have revealed attractive pharmacological properties for managing rare diseases including Cystic Fibrosis (CF). The iminosugar N-butyl-l-deoxynojirimycin (l-NBDNJ, ent-1), prepared by a carbohydrate-based route, was herein evaluated for its anti-inflammatory and anti-infective potential in models of CF lung disease infection. A significant decrease in the bacterial load in the airways was observed in the murine model of Pseudomonas aeruginosa chronic infection in the presence of l-NBDNJ, also accompanied by a modest reduction of inflammatory cells. Mechanistic insights into the observed activity revealed that l-NBDNJ interferes with the expression of proteins regulating cytoskeleton assembly and organization of the host cell, downregulates the main virulence factors of P. aeruginosa involved in the host response, and affects pathogen adhesion to human cells. These findings along with the observation of the absence of an in vitro bacteriostatic/bactericidal action of l-NBDNJ suggest the potential use of this glycomimetic as an antivirulence agent in the management of CF lung disease.
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Affiliation(s)
- Anna Esposito
- Department
of Chemical, Materials and Production Engineering, University of Naples Federico II, Naples I-80125, Italy
| | - Alice Rossi
- Infections
and Cystic Fibrosis Unit, Division of Immunology, Transplantation
and Infectious Diseases, IRCCS San Raffaele
Scientific Institute, Milan I-20132, Italy
| | - Maria Stabile
- Department
of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples I-80131, Italy
| | - Gabriella Pinto
- Department
of Chemical Sciences, University of Naples
Federico II, Naples I-80126, Italy
| | - Ida De Fino
- Infections
and Cystic Fibrosis Unit, Division of Immunology, Transplantation
and Infectious Diseases, IRCCS San Raffaele
Scientific Institute, Milan I-20132, Italy
| | - Medede Melessike
- Infections
and Cystic Fibrosis Unit, Division of Immunology, Transplantation
and Infectious Diseases, IRCCS San Raffaele
Scientific Institute, Milan I-20132, Italy
| | - Anna Tamanini
- Section
of Clinical Biochemistry, Department of Engineering for Innovation
Medicine, University of Verona, Verona I-37134, Italy
| | - Giulio Cabrini
- Center on
Innovative Therapies for Cystic Fibrosis, Department of Life Sciences
and Biotechnology, University of Ferrara, Ferrara I-40121, Italy
| | - Giuseppe Lippi
- Section
of Clinical Biochemistry, Department of Engineering for Innovation
Medicine, University of Verona, Verona I-37134, Italy
| | - Massimo Aureli
- Department
of Medical Biotechnology and Translational Medicine, University of Milan, Milan I-20054, Italy
| | - Nicoletta Loberto
- Department
of Medical Biotechnology and Translational Medicine, University of Milan, Milan I-20054, Italy
| | - Mario Renda
- Telethon
Institute of Genetics and Medicine (TIGEM), Pozzuoli, Naples I-80078, Italy
| | - Luis J. V. Galietta
- Telethon
Institute of Genetics and Medicine (TIGEM), Pozzuoli, Naples I-80078, Italy
- Department
of Translational Medical Sciences (DISMET), University of Naples Federico II, Naples I-80131, Italy
| | - Angela Amoresano
- Department
of Chemical Sciences, University of Naples
Federico II, Naples I-80126, Italy
- Istituto
Nazionale Biostrutture e Biosistemi, Consorzio Interuniversitario, Rome I-00136, Italy
| | - Maria Cristina Dechecchi
- Section
of Clinical Biochemistry, Department of Engineering for Innovation
Medicine, University of Verona, Verona I-37134, Italy
| | - Eliana De Gregorio
- Department
of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples I-80131, Italy
| | - Alessandra Bragonzi
- Infections
and Cystic Fibrosis Unit, Division of Immunology, Transplantation
and Infectious Diseases, IRCCS San Raffaele
Scientific Institute, Milan I-20132, Italy
| | - Annalisa Guaragna
- Department
of Chemical Sciences, University of Naples
Federico II, Naples I-80126, Italy
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3
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Dysfunctional Inflammation in Cystic Fibrosis Airways: From Mechanisms to Novel Therapeutic Approaches. Int J Mol Sci 2021; 22:ijms22041952. [PMID: 33669352 PMCID: PMC7920244 DOI: 10.3390/ijms22041952] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 02/08/2021] [Accepted: 02/12/2021] [Indexed: 12/27/2022] Open
Abstract
Cystic fibrosis (CF) is an inherited disorder caused by mutations in the gene encoding for the cystic fibrosis transmembrane conductance regulator (CFTR) protein, an ATP-gated chloride channel expressed on the apical surface of airway epithelial cells. CFTR absence/dysfunction results in defective ion transport and subsequent airway surface liquid dehydration that severely compromise the airway microenvironment. Noxious agents and pathogens are entrapped inside the abnormally thick mucus layer and establish a highly inflammatory environment, ultimately leading to lung damage. Since chronic airway inflammation plays a crucial role in CF pathophysiology, several studies have investigated the mechanisms responsible for the altered inflammatory/immune response that, in turn, exacerbates the epithelial dysfunction and infection susceptibility in CF patients. In this review, we address the evidence for a critical role of dysfunctional inflammation in lung damage in CF and discuss current therapeutic approaches targeting this condition, as well as potential new treatments that have been developed recently. Traditional therapeutic strategies have shown several limitations and limited clinical benefits. Therefore, many efforts have been made to develop alternative treatments and novel therapeutic approaches, and recent findings have identified new molecules as potential anti-inflammatory agents that may exert beneficial effects in CF patients. Furthermore, the potential anti-inflammatory properties of CFTR modulators, a class of drugs that directly target the molecular defect of CF, also will be critically reviewed. Finally, we also will discuss the possible impact of SARS-CoV-2 infection on CF patients, with a major focus on the consequences that the viral infection could have on the persistent inflammation in these patients.
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Editorial: Special Issue on "Therapeutic Approaches for Cystic Fibrosis". Int J Mol Sci 2020; 21:ijms21186657. [PMID: 32932926 PMCID: PMC7555172 DOI: 10.3390/ijms21186657] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 09/08/2020] [Accepted: 09/09/2020] [Indexed: 12/18/2022] Open
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De Gregorio E, Esposito A, Vollaro A, De Fenza M, D’Alonzo D, Migliaccio A, Iula VD, Zarrilli R, Guaragna A. N-Nonyloxypentyl-l-Deoxynojirimycin Inhibits Growth, Biofilm Formation and Virulence Factors Expression of Staphylococcus aureus. Antibiotics (Basel) 2020; 9:E362. [PMID: 32604791 PMCID: PMC7344813 DOI: 10.3390/antibiotics9060362] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 06/15/2020] [Accepted: 06/24/2020] [Indexed: 12/14/2022] Open
Abstract
Staphylococcus aureus is one of the major causes of hospital- and community-associated bacterial infections throughout the world, which are difficult to treat due to the rising number of drug-resistant strains. New molecules displaying potent activity against this bacterium are urgently needed. In this study, d- and l-deoxynojirimycin (DNJ) and a small library of their N-alkyl derivatives were screened against S. aureus ATCC 29213, with the aim to identify novel candidates with inhibitory potential. Among them, N-nonyloxypentyl-l-DNJ (l-NPDNJ) proved to be the most active compound against S. aureus ATCC 29213 and its clinical isolates, with the minimum inhibitory concentration (MIC) value of 128 μg/mL. l-NPDNJ also displayed an additive effect with gentamicin and oxacillin against the gentamicin- and methicillin-resistant S. aureus isolate 00717. Sub-MIC values of l-NPDNJ affected S. aureus biofilm development in a dose-dependent manner, inducing a strong reduction in biofilm biomass. Moreover, real-time reverse transcriptase PCR analysis revealed that l-NPDNJ effectively inhibited at sub-MIC values the transcription of the spa, hla, hlb and sea virulence genes, as well as the agrA and saeR response regulator genes.
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Affiliation(s)
- Eliana De Gregorio
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Via S. Pansini 5, 80131 Naples, Italy;
| | - Anna Esposito
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia, 80126 Naples, Italy; (A.E.); (M.D.F.); (D.D.)
| | - Adriana Vollaro
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Via S. Pansini 5, 80131 Naples, Italy;
| | - Maria De Fenza
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia, 80126 Naples, Italy; (A.E.); (M.D.F.); (D.D.)
| | - Daniele D’Alonzo
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia, 80126 Naples, Italy; (A.E.); (M.D.F.); (D.D.)
| | - Antonella Migliaccio
- Department of Public Health, University of Naples Federico II, Via S. Pansini 5, 80131 Naples, Italy; (A.M.); (R.Z.)
| | - Vita Dora Iula
- Complex Operative Unit of Clinical Pathology, “Ospedale del Mare-ASL NA1 Centro”, 80131 Naples, Italy;
| | - Raffaele Zarrilli
- Department of Public Health, University of Naples Federico II, Via S. Pansini 5, 80131 Naples, Italy; (A.M.); (R.Z.)
| | - Annalisa Guaragna
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia, 80126 Naples, Italy; (A.E.); (M.D.F.); (D.D.)
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Synthesis and Therapeutic Applications of Iminosugars in Cystic Fibrosis. Int J Mol Sci 2020; 21:ijms21093353. [PMID: 32397443 PMCID: PMC7247015 DOI: 10.3390/ijms21093353] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 05/06/2020] [Accepted: 05/06/2020] [Indexed: 12/13/2022] Open
Abstract
Iminosugars are sugar analogues endowed with a high pharmacological potential. The wide range of biological activities exhibited by these glycomimetics associated with their excellent drug profile make them attractive therapeutic candidates for several medical interventions. The ability of iminosugars to act as inhibitors or enhancers of carbohydrate-processing enzymes suggests their potential use as therapeutics for the treatment of cystic fibrosis (CF). Herein we review the most relevant advances in the field, paying attention to both the chemical synthesis of the iminosugars and their biological evaluations, resulting from in vitro and in vivo assays. Starting from the example of the marketed drug NBDNJ (N-butyl deoxynojirimycin), a variety of iminosugars have exhibited the capacity to rescue the trafficking of F508del-CFTR (deletion of F508 residue in the CF transmembrane conductance regulator), either alone or in combination with other correctors. Interesting results have also been obtained when iminosugars were considered as anti-inflammatory agents in CF lung disease. The data herein reported demonstrate that iminosugars hold considerable potential to be applied for both therapeutic purposes.
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Olszak T, Danis-Wlodarczyk K, Arabski M, Gula G, Maciejewska B, Wasik S, Lood C, Higgins G, Harvey BJ, Lavigne R, Drulis-Kawa Z. Pseudomonas aeruginosa PA5oct Jumbo Phage Impacts Planktonic and Biofilm Population and Reduces Its Host Virulence. Viruses 2019; 11:E1089. [PMID: 31771160 PMCID: PMC6950013 DOI: 10.3390/v11121089] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 11/19/2019] [Accepted: 11/20/2019] [Indexed: 12/20/2022] Open
Abstract
The emergence of phage-resistant mutants is a key aspect of lytic phages-bacteria interaction and the main driver for the co-evolution between both organisms. Here, we analyze the impact of PA5oct jumbo phage treatment on planktonic/cell line associated and sessile P. aeruginosa population. Besides its broad-spectrum activity and efficient bacteria reduction in both airway surface liquid (ASL) model, and biofilm matrix degradation, PA5oct appears to persist in most of phage-resistant clones. Indeed, a high percentage of resistance (20/30 clones) to PA5oct is accompanied by the presence of phage DNA within bacterial culture. Moreover, the maintenance of this phage in the bacterial population correlates with reduced P. aeruginosa virulence, coupled with a sensitization to innate immune mechanisms, and a significantly reduced growth rate. We observed rather unusual consequences of PA5oct infection causing an increased inflammatory response of monocytes to P. aeruginosa. This phenomenon, combined with the loss or modification of the phage receptor, makes most of the phage-resistant clones significantly less pathogenic in in vivo model. These findings provide new insights into the general knowledge of giant phages biology and the impact of their application in phage therapy.
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Affiliation(s)
- Tomasz Olszak
- Department of Pathogen Biology and Immunology, Institute of Genetics and Microbiology, University of Wroclaw, 51-148 Wroclaw, Poland; (T.O.); (K.D.-W.); (G.G.); (B.M.)
| | - Katarzyna Danis-Wlodarczyk
- Department of Pathogen Biology and Immunology, Institute of Genetics and Microbiology, University of Wroclaw, 51-148 Wroclaw, Poland; (T.O.); (K.D.-W.); (G.G.); (B.M.)
- Laboratory of Gene Technology, KU Leuven, 3001 Heverlee, Belgium; (C.L.); (R.L.)
| | - Michal Arabski
- Department of Biochemistry and Genetics, Institute of Biology, The Jan Kochanowski University in Kielce, 25-406 Kielce, Poland;
| | - Grzegorz Gula
- Department of Pathogen Biology and Immunology, Institute of Genetics and Microbiology, University of Wroclaw, 51-148 Wroclaw, Poland; (T.O.); (K.D.-W.); (G.G.); (B.M.)
| | - Barbara Maciejewska
- Department of Pathogen Biology and Immunology, Institute of Genetics and Microbiology, University of Wroclaw, 51-148 Wroclaw, Poland; (T.O.); (K.D.-W.); (G.G.); (B.M.)
| | - Slawomir Wasik
- Department of Molecular Physics, Institute of Physics, The Jan Kochanowski University in Kielce, 25-406 Kielce, Poland;
| | - Cédric Lood
- Laboratory of Gene Technology, KU Leuven, 3001 Heverlee, Belgium; (C.L.); (R.L.)
- Laboratory of Computational Systems Biology, KU Leuven, 3000 Leuven, Belgium
| | - Gerard Higgins
- National Children Research Centre, Our Lady’s Children’s Hospital, Crumlin, 12 Dublin, Ireland;
- Department of Molecular Medicine, Royal College of Surgeons in Ireland, Education and Research Centre, Beaumont Hospital, 9 Dublin, Ireland;
| | - Brian J. Harvey
- Department of Molecular Medicine, Royal College of Surgeons in Ireland, Education and Research Centre, Beaumont Hospital, 9 Dublin, Ireland;
| | - Rob Lavigne
- Laboratory of Gene Technology, KU Leuven, 3001 Heverlee, Belgium; (C.L.); (R.L.)
| | - Zuzanna Drulis-Kawa
- Department of Pathogen Biology and Immunology, Institute of Genetics and Microbiology, University of Wroclaw, 51-148 Wroclaw, Poland; (T.O.); (K.D.-W.); (G.G.); (B.M.)
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Cabrini G. Innovative Therapies for Cystic Fibrosis: The Road from Treatment to Cure. Mol Diagn Ther 2019; 23:263-279. [PMID: 30478715 DOI: 10.1007/s40291-018-0372-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Cystic fibrosis (CF), a life-threatening multiorgan genetic disease, is facing a new era of research and development using innovative gene-directed personalized therapies. The priority organ to cure is the lung, which suffers recurrent and chronic bacterial infection and inflammation since infancy, representing the main cause of morbidity and precocious mortality of these individuals. After the disappointing failure of gene-replacement approaches using gene therapy vectors, no single drug is presently available to repair all the CF gene defects. The impressive number of different CF gene mutations is now tackled with different chemical and biotechnological tools tailored to the specific molecular derangements, thanks to the extensive knowledge acquired over many years on the mechanisms of CF cell and organ pathology. This review provides an overview and recalls both the successes and limitations of the different experimental approaches, such as high-throughput screening on chemical libraries to discover CF gene correctors and potentiators, dual-acting compounds, read-through molecules, splicing defect repairing tools, cystic fibrosis transmembrane conductance regulator (CFTR) "amplifiers," CFTR interactome modulators and the first gene editing attempts.
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Affiliation(s)
- Giulio Cabrini
- Laboratory of Molecular Pathology, University Hospital, Verona, Italy. .,Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy.
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9
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Dehoux-Baudoin C, Génisson Y. C
-Branched Imino Sugars: Synthesis and Biological Relevance. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900605] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Cécile Dehoux-Baudoin
- SPCMIB, UMR5068 CNRS; Université Paul Sabatier-Toulouse 3; 118 route de Narbonne 31062 Toulouse cedex 09 France
| | - Yves Génisson
- SPCMIB, UMR5068 CNRS; Université Paul Sabatier-Toulouse 3; 118 route de Narbonne 31062 Toulouse cedex 09 France
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Dechecchi MC, Tamanini A, Cabrini G. Molecular basis of cystic fibrosis: from bench to bedside. ANNALS OF TRANSLATIONAL MEDICINE 2018; 6:334. [PMID: 30306073 PMCID: PMC6174194 DOI: 10.21037/atm.2018.06.48] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2018] [Accepted: 06/26/2018] [Indexed: 12/21/2022]
Abstract
Cystic fibrosis (CF), is an autosomal recessive disease affecting different organs. The lung disease, characterized by recurrent and chronic bacterial infection and inflammation since infancy, is the main cause of morbidity and precocious mortality of these individuals. The innovative therapies directed to repair the defective CF gene should account for the presence of more than 200 disease-causing mutations of the CF transmembrane conductance regulator (CFTR) gene. The review will recall the different experimental approaches in discovering CFTR protein targeted molecules, such as the high throughput screening on chemical libraries to discover correctors and potentiators of CFTR protein, dual-acting compounds, read-through molecules, splicing defects repairing tools, CFTR "amplifiers".
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Affiliation(s)
- Maria Cristina Dechecchi
- Laboratory of Analysis, Section of Molecular Pathology, University Hospital of Verona, Verona, Italy
| | - Anna Tamanini
- Laboratory of Analysis, Section of Molecular Pathology, University Hospital of Verona, Verona, Italy
| | - Giulio Cabrini
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
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Evidence for the Involvement of Lipid Rafts and Plasma Membrane Sphingolipid Hydrolases in Pseudomonas aeruginosa Infection of Cystic Fibrosis Bronchial Epithelial Cells. Mediators Inflamm 2017; 2017:1730245. [PMID: 29333001 PMCID: PMC5733190 DOI: 10.1155/2017/1730245] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 08/02/2017] [Accepted: 08/30/2017] [Indexed: 12/28/2022] Open
Abstract
Cystic fibrosis (CF) is the most common autosomal genetic recessive disease caused by mutations of gene encoding for the cystic fibrosis transmembrane conductance regulator. Patients with CF display a wide spectrum of symptoms, the most severe being chronic lung infection and inflammation, which lead to onset of cystic fibrosis lung disease. Several studies indicate that sphingolipids play a regulatory role in airway inflammation. The inhibition and downregulation of GBA2, the enzyme catabolizing glucosylceramide to ceramide, are associated with a significant reduction of IL-8 production in CF bronchial epithelial cells. Herein, we demonstrate that GBA2 plays a role in the proinflammatory state characterizing CF cells. We also report for the first time that Pseudomonas aeruginosa infection causes a recruitment of plasma membrane-associated glycosphingolipid hydrolases into lipid rafts of CuFi-1-infected cells. This reorganization of cell membrane may be responsible for activation of a signaling cascade, culminating in aberrant inflammatory response in CF bronchial epithelial cells upon bacterial infection. Taken together, the presented data further support the role of sphingolipids and their metabolic enzymes in controlling the inflammatory response in CF.
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12
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Miglustat therapy in a case of early-infantile Niemann-Pick type C. Brain Dev 2017; 39:886-890. [PMID: 28587793 DOI: 10.1016/j.braindev.2017.05.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 05/03/2017] [Accepted: 05/09/2017] [Indexed: 11/22/2022]
Abstract
Niemann-Pick disease type C (NPC) is a rare, progressive autosomal recessive disease. It is caused by mutations in either the NPC1 or NPC2 genes, resulting in defective regulation of intracellular lipid trafficking. Miglustat, which reversibly inhibits glucosylceramide synthase, reportedly has beneficial effects on the progressive neurological symptoms of NPC and was approved in Japan in 2012. Some reports suggested that miglustat therapy delayed the onset or progression of NPC when treatment was initiated before the onset of neurological manifestation or at an early stage. We report here a patient with the early-infantile form of NPC who started on miglustat at 4months of ages. To our knowledge, this patient is the youngest reported patient with NPC in which miglustat therapy was initiated. Our patient, who had hypotonia and developmental delay before treatment, remained stable and showed no new neurological symptoms. In addition, pulmonary involvement was improved during miglustat therapy. Our case and previous reports underscore the importance of early initiation of miglustat therapy for NPC.
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α-Geminal disubstituted pyrrolidine iminosugars and their C-4-fluoro analogues: Synthesis, glycosidase inhibition and molecular docking studies. Bioorg Med Chem 2017; 25:5148-5159. [DOI: 10.1016/j.bmc.2017.07.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 07/12/2017] [Accepted: 07/12/2017] [Indexed: 11/24/2022]
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14
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Lampronti I, Dechecchi MC, Rimessi A, Bezzerri V, Nicolis E, Guerrini A, Tacchini M, Tamanini A, Munari S, D'Aversa E, Santangelo A, Lippi G, Sacchetti G, Pinton P, Gambari R, Agostini M, Cabrini G. β-Sitosterol Reduces the Expression of Chemotactic Cytokine Genes in Cystic Fibrosis Bronchial Epithelial Cells. Front Pharmacol 2017; 8:236. [PMID: 28553226 PMCID: PMC5427149 DOI: 10.3389/fphar.2017.00236] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 04/18/2017] [Indexed: 11/15/2022] Open
Abstract
Extracts from Nigella arvensis L. seeds, which are widely used as anti-inflammatory remedies in traditional medicine of Northern Africa, were able to inhibit the expression of the pro-inflammatory neutrophil chemokine Interleukin (IL)-8 in Cystic Fibrosis (CF) bronchial epithelial IB3-1 cells exposed to the Gram-negative bacterium Pseudomonas aeruginosa. The chemical composition of the extracts led to the identification of three major components, β-sitosterol, stigmasterol, and campesterol, which are the most abundant phytosterols, cholesterol-like molecules, usually found in plants. β-sitosterol (BSS) was the only compound that significantly reproduced the inhibition of the P. aeruginosa-dependent expression of IL-8 at nanomolar concentrations. BSS was tested in CF airway epithelial CuFi-1 cells infected with P. aeruginosa. BSS (100 nM), showed a significant and consistent inhibitory activity on expression of the P. aeruginosa-stimulated expression chemokines IL-8, GRO-α GRO-β, which play a pivotal role in the recruitment of neutrophils in CF inflamed lungs. Preliminary mechanistic analysis showed that BSS partially inhibits the P. aeruginosa-dependent activation of Protein Kinase C isoform alpha, which is known to be involved in the transmembrane signaling activating IL-8 gene expression in bronchial epithelial cells. These data indicate BSS as a promising molecule to control excessive lung inflammation in CF patients.
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Affiliation(s)
- Ilaria Lampronti
- Department of Life Sciences and Biotechnology, University of FerraraFerrara, Italy
| | - Maria C Dechecchi
- Laboratory of Molecular Pathology, Department of Pathology and Diagnostics, University Hospital of VeronaVerona, Italy
| | - Alessandro Rimessi
- Section of Pathology, Oncology and Experimental Biology, Laboratory for Technologies of Advanced Therapies, Department of Morphology Surgery and Experimental Medicine, University of FerraraFerrara, Italy
| | - Valentino Bezzerri
- Laboratory of Molecular Pathology, Department of Pathology and Diagnostics, University Hospital of VeronaVerona, Italy
| | - Elena Nicolis
- Laboratory of Molecular Pathology, Department of Pathology and Diagnostics, University Hospital of VeronaVerona, Italy
| | - Alessandra Guerrini
- Department of Life Sciences and Biotechnology, University of FerraraFerrara, Italy
| | - Massimo Tacchini
- Department of Life Sciences and Biotechnology, University of FerraraFerrara, Italy
| | - Anna Tamanini
- Laboratory of Molecular Pathology, Department of Pathology and Diagnostics, University Hospital of VeronaVerona, Italy
| | - Silvia Munari
- Laboratory of Molecular Pathology, Department of Pathology and Diagnostics, University Hospital of VeronaVerona, Italy
| | - Elisabetta D'Aversa
- Department of Life Sciences and Biotechnology, University of FerraraFerrara, Italy
| | - Alessandra Santangelo
- Laboratory of Molecular Pathology, Department of Pathology and Diagnostics, University Hospital of VeronaVerona, Italy
| | - Giuseppe Lippi
- Laboratory of Molecular Pathology, Department of Pathology and Diagnostics, University Hospital of VeronaVerona, Italy
| | - Gianni Sacchetti
- Department of Life Sciences and Biotechnology, University of FerraraFerrara, Italy
| | - Paolo Pinton
- Section of Pathology, Oncology and Experimental Biology, Laboratory for Technologies of Advanced Therapies, Department of Morphology Surgery and Experimental Medicine, University of FerraraFerrara, Italy
| | - Roberto Gambari
- Department of Life Sciences and Biotechnology, University of FerraraFerrara, Italy
| | - Maddalena Agostini
- Italian National Health Service - USL 20 Regione Veneto and Associazione Culturale PediatriVerona, Italy
| | - Giulio Cabrini
- Laboratory of Molecular Pathology, Department of Pathology and Diagnostics, University Hospital of VeronaVerona, Italy
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15
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Simonaro CM. Lysosomes, Lysosomal Storage Diseases, and Inflammation. JOURNAL OF INBORN ERRORS OF METABOLISM AND SCREENING 2016. [DOI: 10.1177/2326409816650465] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Affiliation(s)
- Calogera M. Simonaro
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY USA
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16
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Bertrand J, Dannhoffer L, Antigny F, Vachel L, Jayle C, Vandebrouck C, Becq F, Norez C. A functional tandem between transient receptor potential canonical channels 6 and calcium-dependent chloride channels in human epithelial cells. Eur J Pharmacol 2015; 765:337-45. [DOI: 10.1016/j.ejphar.2015.08.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Revised: 07/21/2015] [Accepted: 08/04/2015] [Indexed: 11/16/2022]
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17
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Loberto N, Tebon M, Lampronti I, Marchetti N, Aureli M, Bassi R, Giri MG, Bezzerri V, Lovato V, Cantù C, Munari S, Cheng SH, Cavazzini A, Gambari R, Sonnino S, Cabrini G, Dechecchi MC. GBA2-encoded β-glucosidase activity is involved in the inflammatory response to Pseudomonas aeruginosa. PLoS One 2014; 9:e104763. [PMID: 25141135 PMCID: PMC4139313 DOI: 10.1371/journal.pone.0104763] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Accepted: 07/16/2014] [Indexed: 11/19/2022] Open
Abstract
Current anti-inflammatory strategies for the treatment of pulmonary disease in cystic fibrosis (CF) are limited; thus, there is continued interest in identifying additional molecular targets for therapeutic intervention. Given the emerging role of sphingolipids (SLs) in various respiratory disorders, including CF, drugs that selectively target the enzymes associated with SL metabolism are under development. Miglustat, a well-characterized iminosugar-based inhibitor of β-glucosidase 2 (GBA2), has shown promise in CF treatment because it reduces the inflammatory response to infection by P. aeruginosa and restores F508del-CFTR chloride channel activity. This study aimed to probe the molecular basis for the anti-inflammatory activity of miglustat by examining specifically the role of GBA2 following the infection of CF bronchial epithelial cells by P. aeruginosa. We also report the anti-inflammatory activity of another potent inhibitor of GBA2 activity, namely N-(5-adamantane-1-yl-methoxy)pentyl)-deoxynojirimycin (Genz-529648). In CF bronchial cells, inhibition of GBA2 by miglustat or Genz-529648 significantly reduced the induction of IL-8 mRNA levels and protein release following infection by P. aeruginosa. Hence, the present data demonstrate that the anti-inflammatory effects of miglustat and Genz-529648 are likely exerted through inhibition of GBA2.
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Affiliation(s)
- Nicoletta Loberto
- Department of Medical Biotechnology and Translational Medicine, University of Milano, Milano, Italy
| | - Maela Tebon
- Laboratory of Molecular Pathology, Department of Pathology and Diagnostics, University Hospital of Verona, Verona, Italy
| | - Ilaria Lampronti
- Department of Life Sciences and Biotechnology, Section of Biochemistry and Molecular Biology, University of Ferrara, Ferrara, Italy
| | - Nicola Marchetti
- Department of Chemistry and Pharmaceutical Sciences, University of Ferrara, Ferrara, Italy
| | - Massimo Aureli
- Department of Medical Biotechnology and Translational Medicine, University of Milano, Milano, Italy
| | - Rosaria Bassi
- Department of Medical Biotechnology and Translational Medicine, University of Milano, Milano, Italy
| | - Maria Grazia Giri
- Medical Physics Unit, Department of Pathology and Diagnostics, University Hospital of Verona, Verona, Italy
| | - Valentino Bezzerri
- Laboratory of Molecular Pathology, Department of Pathology and Diagnostics, University Hospital of Verona, Verona, Italy
| | - Valentina Lovato
- Laboratory of Molecular Pathology, Department of Pathology and Diagnostics, University Hospital of Verona, Verona, Italy
| | - Cinzia Cantù
- Laboratory of Molecular Pathology, Department of Pathology and Diagnostics, University Hospital of Verona, Verona, Italy
| | - Silvia Munari
- Laboratory of Molecular Pathology, Department of Pathology and Diagnostics, University Hospital of Verona, Verona, Italy
| | - Seng H. Cheng
- Genzyme, a Sanofi Company, Framingham, Massachusetts, United States of America
| | - Alberto Cavazzini
- Department of Chemistry and Pharmaceutical Sciences, University of Ferrara, Ferrara, Italy
| | - Roberto Gambari
- Department of Life Sciences and Biotechnology, Section of Biochemistry and Molecular Biology, University of Ferrara, Ferrara, Italy
| | - Sandro Sonnino
- Department of Medical Biotechnology and Translational Medicine, University of Milano, Milano, Italy
| | - Giulio Cabrini
- Laboratory of Molecular Pathology, Department of Pathology and Diagnostics, University Hospital of Verona, Verona, Italy
| | - Maria Cristina Dechecchi
- Laboratory of Molecular Pathology, Department of Pathology and Diagnostics, University Hospital of Verona, Verona, Italy
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18
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Voisin G, Bouvet GF, Legendre P, Dagenais A, Massé C, Berthiaume Y. Oxidative stress modulates the expression of genes involved in cell survival in ΔF508 cystic fibrosis airway epithelial cells. Physiol Genomics 2014; 46:634-46. [PMID: 24893876 DOI: 10.1152/physiolgenomics.00003.2014] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Although cystic fibrosis (CF) pathophysiology is explained by a defect in CF transmembrane conductance regulator (CFTR) protein, the broad spectrum of disease severity is the consequence of environmental and genetic factors. Among them, oxidative stress has been demonstrated to play an important role in the evolution of this disease, with susceptibility to oxidative damage, decline of pulmonary function, and impaired lung antioxidant defense. Although oxidative stress has been implicated in the regulation of inflammation, its molecular outcomes in CF cells remain to be evaluated. To address the question, we compared the gene expression profile in NuLi-1 cells with wild-type CFTR and CuFi-1 cells homozygous for ΔF508 mutation cultured at air-liquid interface. We analyzed the transcriptomic response of these cell lines with microarray technology, under basal culture conditions and after 24 h oxidative stress induced by 15 μM 2,3-dimethoxy-1,4-naphtoquinone. In the absence of oxidative conditions, CuFi-1 gene profiling showed typical dysregulated inflammatory responses compared with NuLi-1. In the presence of oxidative conditions, the transcriptome of CuFi-1 cells reflected apoptotic transcript modulation. These results were confirmed in the CFBE41o- and corrCFBE41o- cell lines as well as in primary culture of human CF airway epithelial cells. Altogether, our data point to the influence of oxidative stress on cell survival functions in CF and identify several genes that could be implicated in the inflammation response observed in CF patients.
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Affiliation(s)
- Grégory Voisin
- Centre de recherche, Centre hospitalier de l'Université de Montréal - Hôtel Dieu, Montréal, Quebec, Canada
| | | | - Pierre Legendre
- Département de sciences biologiques, Université de Montréal, Succursale Centre-ville, Montréal, Quebec, Canada; and
| | - André Dagenais
- Institut de recherches cliniques de Montréal, Montréal, Quebec, Canada
| | - Chantal Massé
- Institut de recherches cliniques de Montréal, Montréal, Quebec, Canada
| | - Yves Berthiaume
- Institut de recherches cliniques de Montréal, Montréal, Quebec, Canada; Département de médecine, Faculté de médecine, Université de Montréal, Montréal, Quebec, Canada
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19
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Rubino R, Bezzerri V, Favia M, Facchini M, Tebon M, Singh AK, Riederer B, Seidler U, Iannucci A, Bragonzi A, Cabrini G, Reshkin SJ, Tamanini A. Pseudomonas aeruginosa reduces the expression of CFTR via post-translational modification of NHERF1. Pflugers Arch 2014; 466:2269-78. [DOI: 10.1007/s00424-014-1474-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Accepted: 02/05/2014] [Indexed: 10/25/2022]
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20
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Désiré J, Mondon M, Fontelle N, Nakagawa S, Hirokami Y, Adachi I, Iwaki R, Fleet GWJ, Alonzi DS, Twigg G, Butters TD, Bertrand J, Cendret V, Becq F, Norez C, Marrot J, Kato A, Blériot Y. N- and C-alkylation of seven-membered iminosugars generates potent glucocerebrosidase inhibitors and F508del-CFTR correctors. Org Biomol Chem 2014; 12:8977-96. [DOI: 10.1039/c4ob00325j] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis and biological evaluation of a library of novel seven-membered iminosugars is reported.
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Affiliation(s)
- J. Désiré
- UMR-CNRS7285
- IC2MP
- Equipe “Synthèse Organique”
- Groupe “Glycochimie”
- Université de Poitiers
| | - M. Mondon
- UMR-CNRS7285
- IC2MP
- Equipe “Synthèse Organique”
- Groupe “Glycochimie”
- Université de Poitiers
| | - N. Fontelle
- UMR-CNRS7285
- IC2MP
- Equipe “Synthèse Organique”
- Groupe “Glycochimie”
- Université de Poitiers
| | - S. Nakagawa
- Department of Hospital Pharmacy
- University of Toyama
- Toyama 930-0194, Japan
| | - Y. Hirokami
- Department of Hospital Pharmacy
- University of Toyama
- Toyama 930-0194, Japan
| | - I. Adachi
- Department of Hospital Pharmacy
- University of Toyama
- Toyama 930-0194, Japan
| | - R. Iwaki
- Department of Hospital Pharmacy
- University of Toyama
- Toyama 930-0194, Japan
| | - G. W. J. Fleet
- Chemistry Research Laboratory
- Oxford University
- Oxford OX1 3TA, UK
| | - D. S. Alonzi
- Oxford Glycobiology Institute
- Department of Biochemistry
- University of Oxford
- Oxford OX1 3QY, UK
| | - G. Twigg
- Oxford Glycobiology Institute
- Department of Biochemistry
- University of Oxford
- Oxford OX1 3QY, UK
| | - T. D. Butters
- Oxford Glycobiology Institute
- Department of Biochemistry
- University of Oxford
- Oxford OX1 3QY, UK
| | - J. Bertrand
- Institut de Physiologie et Biologie Cellulaires
- Université de Poitiers
- FRE 3511 CNRS
- 86022 Poitiers cedex, France
| | - V. Cendret
- UMR-CNRS7285
- IC2MP
- Equipe “Synthèse Organique”
- Groupe “Glycochimie”
- Université de Poitiers
| | - F. Becq
- Institut de Physiologie et Biologie Cellulaires
- Université de Poitiers
- FRE 3511 CNRS
- 86022 Poitiers cedex, France
| | - C. Norez
- Institut de Physiologie et Biologie Cellulaires
- Université de Poitiers
- FRE 3511 CNRS
- 86022 Poitiers cedex, France
| | - J. Marrot
- Institut Lavoisier de Versailles
- UMR CNRS 8180
- 78035 Versailles cedex, France
| | - A. Kato
- Department of Hospital Pharmacy
- University of Toyama
- Toyama 930-0194, Japan
| | - Y. Blériot
- UMR-CNRS7285
- IC2MP
- Equipe “Synthèse Organique”
- Groupe “Glycochimie”
- Université de Poitiers
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21
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Jenkinson SF, Best D, Saville AW, Mui J, Martínez RF, Nakagawa S, Kunimatsu T, Alonzi DS, Butters TD, Norez C, Becq F, Blériot Y, Wilson FX, Weymouth-Wilson AC, Kato A, Fleet GWJ. C-branched iminosugars: α-glucosidase inhibition by enantiomers of isoDMDP, isoDGDP, and isoDAB-L-isoDMDP compared to miglitol and miglustat. J Org Chem 2013; 78:7380-97. [PMID: 23688199 DOI: 10.1021/jo4005487] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The Ho crossed aldol condensation provides access to a series of carbon branched iminosugars as exemplified by the synthesis of enantiomeric pairs of isoDMDP, isoDGDP, and isoDAB, allowing comparison of their biological activities with three linear isomeric natural products DMDP, DGDP, and DAB and their enantiomers. L-IsoDMDP [(2S,3S,4R)-2,4-bis(hydroxymethyl)pyrrolidine-3,4-diol], prepared in 11 steps in an overall yield of 45% from d-lyxonolactone, is a potent specific competitive inhibitor of gut disaccharidases [K(i) 0.081 μM for rat intestinal maltase] and is more effective in the suppression of hyperglycaemia in a maltose loading test than miglitol, a drug presently used in the treatment of late onset diabetes. The partial rescue of the defective F508del-CFTR function in CF-KM4 cells by L-isoDMDP is compared with miglustat and isoLAB in an approach to the treatment of cystic fibrosis.
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Affiliation(s)
- Sarah F Jenkinson
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, UK
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22
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Unexpected cure from cutaneous leukocytoclastic vasculitis in a patient treated with N-butyldeoxynojirimycin (miglustat) for Gaucher disease. Adv Med Sci 2012; 57:169-73. [PMID: 22515974 DOI: 10.2478/v10039-012-0021-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Cutaneous leukocytoclastic vasculitis (CLV) is a necrotizing inflammation of the small vessels in the dermis. We report the case of a Swedish man with an untreated N370S/L444P Gaucher disease who developed CLV at the age of 79 years. The patient has been treated for CLV with topical and oral corticosteroids, moisturizing agents, and periodically with antibiotics for 3 years without improvement. Administration of miglustat (N-butyldeoxynojirimycin; Zavesca®) because of progress of Gaucher disease resulted in a prompt and durable cure of the CLV.
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23
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Abstract
Cystic fibrosis transmembrane conductance regulator (CFTR) functions as a channel that regulates the transport of ions and the movement of water across the epithelial barrier. Mutations in CFTR, which form the basis for the clinical manifestations of cystic fibrosis, affect the epithelial innate immune function in the lung, resulting in exaggerated and ineffective airway inflammation that fails to eradicate pulmonary pathogens. Compounding the effects of excessive neutrophil recruitment, the mutant CFTR channel does not transport antioxidants to counteract neutrophil-associated oxidative stress. Whereas mutant CFTR expression in leukocytes outside of the lung does not markedly impair their function, the expected regulation of inflammation in the airways is clearly deficient in cystic fibrosis. The resulting bacterial infections, which are caused by organisms that have substantial genetic and metabolic flexibility, can resist multiple classes of antibiotics and evade phagocytic clearance. The development of animal models that approximate the human pulmonary phenotypes-airway inflammation and spontaneous infection-may provide the much-needed tools to establish how CFTR regulates mucosal immunity and to test directly the effect of pharmacologic potentiation and correction of mutant CFTR function on bacterial clearance.
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24
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Aquino R, Prota L, Auriemma G, Santoro A, Mencherini T, Colombo G, Russo P. Dry powder inhalers of gentamicin and leucine: formulation parameters, aerosol performance and in vitro toxicity on CuFi1 cells. Int J Pharm 2012; 426:100-107. [DOI: 10.1016/j.ijpharm.2012.01.026] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2011] [Revised: 01/12/2012] [Accepted: 01/13/2012] [Indexed: 11/26/2022]
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25
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Dechecchi MC, Nicolis E, Mazzi P, Cioffi F, Bezzerri V, Lampronti I, Huang S, Wiszniewski L, Gambari R, Scupoli MT, Berton G, Cabrini G. Modulators of Sphingolipid Metabolism Reduce Lung Inflammation. Am J Respir Cell Mol Biol 2011; 45:825-33. [DOI: 10.1165/rcmb.2010-0457oc] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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26
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Abstract
With knowledge of the molecular behaviour of the cystic fibrosis transmembrane conductance regulator (CFTR), its physiological role and dysfunction in cystic fibrosis (CF), therapeutic strategies are now being developed that target the root cause of CF rather than disease symptoms. Here, we review progress towards the development of rational new therapies for CF. We highlight the discovery of small molecules that rescue the cell surface expression and defective channel gating of CF mutants, termed CFTR correctors and CFTR potentiators, respectively. We draw attention to alternative approaches to restore epithelial ion transport to CF epithelia, including inhibitors of the epithelial Na(+) channel (ENaC) and activators of the Ca(2+)-activated Cl(-) channel TMEM16A. The expertise required to translate small molecules identified in the laboratory to drugs for CF patients depends on our ability to coordinate drug development at an international level and our ability to provide pertinent biological information using suitable disease models.
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27
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Jenkinson SF, Fleet GWJ, Nash RJ, Koike Y, Adachi I, Yoshihara A, Morimoto K, Izumori K, Kato A. Looking-glass synergistic pharmacological chaperones: DGJ and L-DGJ from the enantiomers of tagatose. Org Lett 2011; 13:4064-7. [PMID: 21744786 DOI: 10.1021/ol201552q] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The enantiomers of tagatose are converted to L-DGJ [a noncompetitive inhibitor of human lysosome α-galactosidase A (α-Gal A), K(i) 38.5 μM] and DGJ [a competitive inhibitor of α-Gal A, K(i) 15.1 nM] in 66% yield. L-DGJ and DGJ provide the first examples of pharmacological chaperones that (a) are enantiomeric iminosugars and (b) have synergistic activity with implications for the treatment of lysosomal storage disorders and other protein deficiencies.
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Affiliation(s)
- Sarah F Jenkinson
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, OX1 3TA, United Kingdom
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28
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Abstract
Inflammation is a major component of the vicious cycle characterizing cystic fibrosis (CF) pulmonary disease. If untreated, this inflammatory process irreversibly damages the airways, leading to bronchiectasis and ultimately respiratory failure. Anti-inflammatory drugs for CF lung disease appear to have beneficial effects on disease progression. These agents include oral corticosteroids and ibuprofen, as well as azithromycin, which, in addition to its antimicrobial effects, also possess anti-inflammatory properties. Inhaled corticosteroids, antioxidants, nutritional supplements, and protease inhibitors have a limited impact on the disease. Adverse effects limit therapy with oral corticosteroids and ibuprofen. Azithromycin appears to be safe and effective, and is thus the most promising anti-inflammatory therapy available for patients with CF. Pharmacologic therapy with anti-inflammatory agents should be started early in the disease course, before extensive irreversible lung damage has occurred. To optimize anti-inflammatory therapy, it is necessary to understand the mechanism of action of these agents in the CF lung, to determine which of these agents would provide the most benefit to patients with CF, and to determine which therapies should be initiated at what age or stage of lung disease.
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Affiliation(s)
- Tacjana Pressler
- CF Centre Copenhagen, Department of Paediatrics, University Hospital Rigshospitalet, Copenhagen, Denmark.
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29
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Prota L, Santoro A, Bifulco M, Aquino RP, Mencherini T, Russo P. Leucine enhances aerosol performance of Naringin dry powder and its activity on cystic fibrosis airway epithelial cells. Int J Pharm 2011; 412:8-19. [DOI: 10.1016/j.ijpharm.2011.03.055] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2011] [Revised: 03/24/2011] [Accepted: 03/27/2011] [Indexed: 10/18/2022]
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30
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Borgatti M, Mancini I, Bianchi N, Guerrini A, Lampronti I, Rossi D, Sacchetti G, Gambari R. Bergamot (Citrus bergamia Risso) fruit extracts and identified components alter expression of interleukin 8 gene in cystic fibrosis bronchial epithelial cell lines. BMC BIOCHEMISTRY 2011; 12:15. [PMID: 21496221 PMCID: PMC3095539 DOI: 10.1186/1471-2091-12-15] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2010] [Accepted: 04/15/2011] [Indexed: 01/01/2023]
Abstract
Background Cystic fibrosis (CF) airway pathology is a fatal, autosomal, recessive genetic disease characterized by extensive lung inflammation. After induction by TNF-α, elevated concentrations of several pro-inflammatory cytokines (i.e. IL-6, IL-1β) and chemokines (i.e. IL-8) are released from airway epithelial cells. In order to reduce the excessive inflammatory response in the airways of CF patients, new therapies have been developed and in this respect, medicinal plant extracts have been studied. In this article we have investigated the possible use of bergamot extracts (Citrus bergamia Risso) and their identified components to alter the expression of IL-8 associated with the cystic fibrosis airway pathology. Methods The extracts were chemically characterized by 1H-NMR (nuclear magnetic resonance), GC-FID (gas chromatography-flame ionization detector), GC-MS (gas chromatography-mass spectrometry) and HPLC (high pressure liquid chromatography). Both bergamot extracts and main detected chemical constituents were assayed for their biological activity measuring (a) cytokines and chemokines in culture supernatants released from cystic fibrosis IB3-1 cells treated with TNF-α by Bio-Plex cytokine assay; (b) accumulation of IL-8 mRNA by real-time PCR. Results The extracts obtained from bergamot (Citrus bergamia Risso) epicarps contain components displaying an inhibitory activity on IL-8. Particularly, the most active molecules were bergapten and citropten. These effects have been confirmed by analyzing mRNA levels and protein release in the CF cellular models IB3-1 and CuFi-1 induced with TNF-α or exposed to heat-inactivated Pseudomonas aeruginosa. Conclusions These obtained results clearly indicate that bergapten and citropten are strong inhibitors of IL-8 expression and could be proposed for further studies to verify possible anti-inflammatory properties to reduce lung inflammation in CF patients.
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Affiliation(s)
- Monica Borgatti
- Department of Biochemistry and Molecular Biology, University of Ferrara, Via Fossato di Mortara 74, Ferrara, 44121, Italy
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31
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Tamanini A, Borgatti M, Finotti A, Piccagli L, Bezzerri V, Favia M, Guerra L, Lampronti I, Bianchi N, Dall'Acqua F, Vedaldi D, Salvador A, Fabbri E, Mancini I, Nicolis E, Casavola V, Cabrini G, Gambari R. Trimethylangelicin reduces IL-8 transcription and potentiates CFTR function. Am J Physiol Lung Cell Mol Physiol 2011; 300:L380-90. [DOI: 10.1152/ajplung.00129.2010] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Chronic inflammatory response in the airway tract of patients affected by cystic fibrosis is characterized by an excessive recruitment of neutrophils to the bronchial lumina, driven by the chemokine interleukin (IL)-8. We previously found that 5-methoxypsoralen reduces Pseudomonas aeruginosa -dependent IL-8 transcription in bronchial epithelial cell lines, with an IC50 of 10 μM (Nicolis E, Lampronti I, Dechecchi MC, Borgatti M, Tamanini A, Bezzerri V, Bianchi N, Mazzon M, Mancini I, Giri MG, Rizzotti P, Gambari R, Cabrini G. Int Immunopharmacol 9: 1411–1422, 2009). Here, we extended the investigation to analogs of 5-methoxypsoralen, and we found that the most potent effect is obtained with 4,6,4′-trimethylangelicin (TMA), which inhibits P. aeruginosa -dependent IL-8 transcription at nanomolar concentration in IB3–1, CuFi-1, CFBE41o−, and Calu-3 bronchial epithelial cell lines. Analysis of phosphoproteins involved in proinflammatory transmembrane signaling evidenced that TMA reduces the phosphorylation of ribosomal S6 kinase-1 and AKT2/3, which we found indeed involved in P. aeruginosa -dependent activation of IL-8 gene transcription by testing the effect of pharmacological inhibitors. In addition, we found a docking site of TMA into NF-κB by in silico analysis, whereas inhibition of the NF-κB/DNA interactions in vitro by EMSA was observed at high concentrations (10 mM TMA). To further understand whether NF-κB pathway should be considered a target of TMA, chromatin immunoprecipitation was performed, and we observed that TMA (100 nM) preincubated in whole living cells reduced the interaction of NF-κB with the promoter of IL-8 gene. These results suggest that TMA could inhibit IL-8 gene transcription mainly by intervening on driving the recruitment of activated transcription factors on IL-8 gene promoter, as demonstrated here for NF-κB. Although the complete understanding of the mechanism of action of TMA deserves further investigation, an activity of TMA on phosphorylating pathways was already demonstrated by our study. Finally, since psoralens have been shown to potentiate cystic fibrosis transmembrane conductance regulator (CFTR)-mediated chloride transport, TMA was tested and found to potentiate CFTR-dependent chloride efflux. In conclusion, TMA is a dual-acting compound reducing excessive IL-8 expression and potentiating CFTR function.
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Affiliation(s)
- Anna Tamanini
- Laboratory of Molecular Pathology, Laboratory of Clinical Chemistry and Haematology, University-Hospital, Verona
| | - Monica Borgatti
- BioPharmaNet, ER-GenTech, Department of Biochemistry and Molecular Biology, University of Ferrara, Ferrara
| | - Alessia Finotti
- BioPharmaNet, ER-GenTech, Department of Biochemistry and Molecular Biology, University of Ferrara, Ferrara
| | - Laura Piccagli
- BioPharmaNet, ER-GenTech, Department of Biochemistry and Molecular Biology, University of Ferrara, Ferrara
| | - Valentino Bezzerri
- Laboratory of Molecular Pathology, Laboratory of Clinical Chemistry and Haematology, University-Hospital, Verona
| | - Maria Favia
- Department of General and Environmental Physiology, University of Bari, Bari
| | - Lorenzo Guerra
- Department of General and Environmental Physiology, University of Bari, Bari
| | - Ilaria Lampronti
- BioPharmaNet, ER-GenTech, Department of Biochemistry and Molecular Biology, University of Ferrara, Ferrara
| | - Nicoletta Bianchi
- BioPharmaNet, ER-GenTech, Department of Biochemistry and Molecular Biology, University of Ferrara, Ferrara
| | | | - Daniela Vedaldi
- Department of Pharmaceutical Sciences, University of Padova, Padova; and
| | - Alessia Salvador
- Department of Pharmaceutical Sciences, University of Padova, Padova; and
| | - Enrica Fabbri
- BioPharmaNet, ER-GenTech, Department of Biochemistry and Molecular Biology, University of Ferrara, Ferrara
| | - Irene Mancini
- BioPharmaNet, ER-GenTech, Department of Biochemistry and Molecular Biology, University of Ferrara, Ferrara
| | - Elena Nicolis
- Laboratory of Molecular Pathology, Laboratory of Clinical Chemistry and Haematology, University-Hospital, Verona
| | - Valeria Casavola
- Department of General and Environmental Physiology, University of Bari, Bari
| | - Giulio Cabrini
- Laboratory of Molecular Pathology, Laboratory of Clinical Chemistry and Haematology, University-Hospital, Verona
| | - Roberto Gambari
- BioPharmaNet, ER-GenTech, Department of Biochemistry and Molecular Biology, University of Ferrara, Ferrara
- Department of Biochemistry and Molecular Biology, University of Ferrara, Ferrara, Italy
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Horne G, Wilson FX. Therapeutic Applications of Iminosugars: Current Perspectives and Future Opportunities. PROGRESS IN MEDICINAL CHEMISTRY 2011; 50:135-76. [DOI: 10.1016/b978-0-12-381290-2.00004-5] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Emam A, Carter WG, Lingwood C. Glycolipid-Dependent, Protease Sensitive Internalization of Pseudomonas aeruginosa Into Cultured Human Respiratory Epithelial Cells. Open Microbiol J 2010; 4:106-15. [PMID: 21270937 PMCID: PMC3026333 DOI: 10.2174/1874285801004010106] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2010] [Revised: 10/12/2010] [Accepted: 10/14/2010] [Indexed: 11/27/2022] Open
Abstract
Internalization of PAK strain Pseudomonas aeruginosa into human respiratory epithelial cell lines and HeLa cervical cancer cells in vitro was readily demonstrable via a gentamycin protection assay. Depletion of target cell glycosphingolipids (GSLs) using a glucosyl ceramide synthase inhibitor, P4, completely prevented P. aeruginosa internalization. In contrast, P4 treatment had no effect on the internalization of Salmonella typhimurium into HeLa cells. Internalized P. aeruginosa were within membrane vacuoles, often containing microvesicles, between the bacterium and the limiting membrane. P. aeruginosa internalization was markedly enhanced by target cell pretreatment with the exogenous GSL, deacetyl gangliotetraosyl ceramide (Gg4). Gg4 binds the lipid raft marker, GM1 ganglioside. Target cell pretreatment with TLCK, but not other (serine) protease inhibitors, prevented both P. aeruginosa host cell binding and internalization. NFkB inhibition also prevented internalization. A GSL-containing lipid-raft model of P. aeruginosa host cell binding/internalization is proposed
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Affiliation(s)
- Aufaugh Emam
- Molecular Structure and Function, The Research Institute, Hospital for Sick Children, Toronto, Ontario M5G 1X8, Canada
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Virtual screening against nuclear factor κB (NF-κB) of a focus library: Identification of bioactive furocoumarin derivatives inhibiting NF-κB dependent biological functions involved in cystic fibrosis. Bioorg Med Chem 2010; 18:8341-9. [DOI: 10.1016/j.bmc.2010.09.063] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2010] [Revised: 09/22/2010] [Accepted: 09/24/2010] [Indexed: 11/23/2022]
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Best D, Jenkinson SF, Saville AW, Alonzi DS, Wormald MR, Butters TD, Norez C, Becq F, Blériot Y, Adachi I, Kato A, Fleet GW. Cystic fibrosis and diabetes: isoLAB and isoDAB, enantiomeric carbon-branched pyrrolidine iminosugars. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.05.131] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Hunter MJ, Treharne KJ, Winter AK, Cassidy DM, Land S, Mehta A. Expression of wild-type CFTR suppresses NF-kappaB-driven inflammatory signalling. PLoS One 2010; 5:e11598. [PMID: 20644644 PMCID: PMC2904384 DOI: 10.1371/journal.pone.0011598] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2009] [Accepted: 05/07/2010] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Mutation of the cystic fibrosis transmembrane-conductance regulator (CFTR) causes cystic fibrosis (CF) but not all CF aspects can easily be explained by deficient ion transport. CF-inflammation provides one example but its pathogenesis remains controversial. Here, we tested the simple but fundamental hypothesis that wild-type CFTR is needed to suppress NF-kappaB activity. METHODOLOGY/PRINCIPAL FINDINGS In lung epithelial (H441) and engineered (H57) cell lines; we report that inflammatory markers are significantly suppressed by wild-type CFTR. Transient-transfection of wild-type CFTR into CFTR-naïve H441 cells, dose-dependently down-regulates both basal and Tumour Necrosis Factor-alpha evoked NF-kappaB activity when compared to transfection with empty vector alone (p<0.01, n>5). This effect was also observed in CFTR-naïve H57-HeLa cells which stably express a reporter of NF-kappaB activity, confirming that the CFTR-mediated repression of inflammation was not due to variable reporter gene transfection efficiency. In contrast, H57 cells transfected with a control cyano-fluorescent protein show a significantly elevated basal level of NF-kappaB activity above control. Initial cell seeding density may be a critical factor in mediating the suppressive effects of CFTR on inflammation as only at a certain density (1x10(5) cells/well) did we observe the reduction in NF-kappaB activity. CFTR channel activity may be necessary for this suppression because the CFTR specific inhibitor CFTR(inh172) significantly stimulates NF-kappaB activity by approximately 30% in CFTR expressing 16HBE14o- cells whereas pharmacological elevation of cyclic-AMP depresses activity by approximately 25% below baseline. CONCLUSIONS/SIGNIFICANCE These data indicate that CFTR has inherent anti-inflammatory properties. We propose that the hyper-inflammation found in CF may arise as a consequence of disrupted repression of NF-kappaB signalling which is normally mediated by CFTR. Our data therefore concur with in vivo and in vitro data from Vij and colleagues which highlights CFTR as a suppressor of basal inflammation acting through NF-kappaB, a central hub in inflammatory signalling.
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Affiliation(s)
- Mairi J. Hunter
- Division of Medical Sciences, Ninewells Hospital and Medical School, University of Dundee, Dundee, United Kingdom
| | - Kate J. Treharne
- Division of Medical Sciences, Ninewells Hospital and Medical School, University of Dundee, Dundee, United Kingdom
| | - Alexandra K. Winter
- Division of Medical Sciences, Ninewells Hospital and Medical School, University of Dundee, Dundee, United Kingdom
| | - Diane M. Cassidy
- Division of Medical Sciences, Ninewells Hospital and Medical School, University of Dundee, Dundee, United Kingdom
| | - Stephen Land
- Division of Medical Sciences, Ninewells Hospital and Medical School, University of Dundee, Dundee, United Kingdom
| | - Anil Mehta
- Division of Medical Sciences, Ninewells Hospital and Medical School, University of Dundee, Dundee, United Kingdom
- * E-mail:
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Becq F. Cystic fibrosis transmembrane conductance regulator modulators for personalized drug treatment of cystic fibrosis: progress to date. Drugs 2010; 70:241-59. [PMID: 20166764 DOI: 10.2165/11316160-000000000-00000] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This article considers the issue of personalized drug discovery for the orphan disease cystic fibrosis (CF) to deliver a candidate for therapeutic development. CF is a very complicated disease due to numerous anomalies of the gene leading to progressive severity and morbidity. Despite extensive research efforts, 20 years after the cloning of the CF gene, CF patients are still waiting for a curative treatment as prescribed medications still target the secondary manifestations of the disease rather than the gene or the CF transmembrane conductance regulator (CFTR) protein. New therapeutics aimed at improving mutant CFTR functions, also known as 'protein repair therapy' are nevertheless hoped and predicted to replace some of the currently used therapy, while improving the quality of life as well as life expectancy of CF patients. Although there is substantial variability in the cost of treating CF between countries, a protein repair therapy should also alleviate the financial burden of medical costs for CF patients and their families. Finding new drugs or rediscovering old ones for CF is critically dependent on the delivery of molecular and structural information on the CFTR protein, on its mutated version and on the network of CFTR-interacting proteins. The expertise needed to turn compounds into marketable drugs for CF will depend on our ability to provide biological information obtained from pertinent models of the disease and on our success in transferring safe molecules to clinical trials. Predicting a drug-induced response is also an attractive challenge that could be rapidly applied to patients.
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Affiliation(s)
- Frédéric Becq
- Institute of Physiology and Cellular Biology, University of Poitiers, National Centre of Scientific Research, Poitiers, France.
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Abstract
Cystic fibrosis (CF) is characterised by respiratory and pancreatic deficiencies that stem from the loss of fully functional CFTR (CF transmembrane conductance regulator) at the membrane of epithelial cells. Current treatment modalities aim to delay the deterioration in lung function, Which is mostly responsible for the relatively short life expectancy of CF sufferers; however none have so far successfully dealt with the underlying molecular defect. Novel pharmacological approaches to ameliorate the lack of active CFTR in respiratory epithelial cells are beginning to address more of the pathophysiological defects caused by CFTR mutations. However, CFTR gene replacement by gene therapy remains the most likely option for addressing the basic defects, including ion transport and inflammatory functions of CFTR. In this chapter, We will review the latest preclinical and clinical advances in pharmacotherapy and gene therapy for CF lung disease.
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Lubamba B, Lebacq J, Lebecque P, Vanbever R, Leonard A, Wallemacq P, Leal T. Airway delivery of low-dose miglustat normalizes nasal potential difference in F508del cystic fibrosis mice. Am J Respir Crit Care Med 2009; 179:1022-8. [PMID: 19299496 DOI: 10.1164/rccm.200901-0049oc] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
RATIONALE N-butyldeoxynojyrimicin (NB-DNJ, miglustat [Zavesca]) an approved drug for treating Gaucher disease, was reported to be able to correct the defective trafficking of the F508del-CFTR protein. OBJECTIVES To evaluate the efficacy of in vivo airway delivery of miglustat for restoring ion transport in cystic fibrosis (CF). METHODS We used nasal transepithelial potential difference (PD) as a measure of sodium and chloride transport. The effect of nasal instillation of a single dose of miglustat was investigated in F508del, cftr knockout and normal homozygous mice. The galactose iminosugar analog N-butyldeoxygalactonojirimycin (NB-DGJ) was used as a placebo. MEASUREMENTS AND MAIN RESULTS In F508del mice, sodium conductance (evaluated by basal hyperpolarization) and chloride conductance (evaluated by perfusing the nasal mucosa with chloride-free solution in the presence of amiloride and forskolin) were normalized 1 hour after an intranasal dose of 50 picomoles of miglustat. Chloride conductance in the presence of 200 microM 4-4'-diisothiocyanostilbene-2,2'-disulphonic acid (DIDS), an inhibitor of alternative chloride channels, was much higher after miglustat than after placebo. In cftr knockout mice, a normalizing effect was observed on sodium but not on chloride conductance. CONCLUSIONS Our results provide clear evidence that nasal delivery of miglustat, at picomolar doses, normalizes sodium and Cftr-dependent chloride transport in F508del transgenic mice; they highlight the potential of topical miglustat as a therapy for CF.
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Affiliation(s)
- Bob Lubamba
- Department of Clinical Chemistry, Université Catholique de Louvain, Brussels, Belgium
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Rottner M, Freyssinet JM, Martínez MC. Mechanisms of the noxious inflammatory cycle in cystic fibrosis. Respir Res 2009; 10:23. [PMID: 19284656 PMCID: PMC2660284 DOI: 10.1186/1465-9921-10-23] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2009] [Accepted: 03/13/2009] [Indexed: 01/09/2023] Open
Abstract
Multiple evidences indicate that inflammation is an event occurring prior to infection in patients with cystic fibrosis. The self-perpetuating inflammatory cycle may play a pathogenic part in this disease. The role of the NF-κB pathway in enhanced production of inflammatory mediators is well documented. The pathophysiologic mechanisms through which the intrinsic inflammatory response develops remain unclear. The unfolded mutated protein cystic fibrosis transmembrane conductance regulator (CFTRΔF508), accounting for this pathology, is retained in the endoplasmic reticulum (ER), induces a stress, and modifies calcium homeostasis. Furthermore, CFTR is implicated in the transport of glutathione, the major antioxidant element in cells. CFTR mutations can alter redox homeostasis and induce an oxidative stress. The disturbance of the redox balance may evoke NF-κB activation and, in addition, promote apoptosis. In this review, we examine the hypotheses of the integrated pathogenic processes leading to the intrinsic inflammatory response in cystic fibrosis.
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Affiliation(s)
- Mathilde Rottner
- 1INSERM U 770; Université Paris-Sud 11, Faculté de Médecine, Hôpital de Bicêtre, Le Kremlin-Bicêtre, France.
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