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Bonacorsi A, Trespidi G, Scoffone VC, Irudal S, Barbieri G, Riabova O, Monakhova N, Makarov V, Buroni S. Characterization of the dispirotripiperazine derivative PDSTP as antibiotic adjuvant and antivirulence compound against Pseudomonas aeruginosa. Front Microbiol 2024; 15:1357708. [PMID: 38435690 PMCID: PMC10904629 DOI: 10.3389/fmicb.2024.1357708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 02/06/2024] [Indexed: 03/05/2024] Open
Abstract
Pseudomonas aeruginosa is a major human pathogen, able to establish difficult-to-treat infections in immunocompromised and people with cystic fibrosis (CF). The high rate of antibiotic treatment failure is due to its notorious drug resistance, often mediated by the formation of persistent biofilms. Alternative strategies, capable of overcoming P. aeruginosa resistance, include antivirulence compounds which impair bacterial pathogenesis without exerting a strong selective pressure, and the use of antimicrobial adjuvants that can resensitize drug-resistant bacteria to specific antibiotics. In this work, the dispirotripiperazine derivative PDSTP, already studied as antiviral, was characterized for its activity against P. aeruginosa adhesion to epithelial cells, its antibiotic adjuvant ability and its biofilm inhibitory potential. PDSTP was effective in impairing the adhesion of P. aeruginosa to various immortalized cell lines. Moreover, the combination of clinically relevant antibiotics with the compound led to a remarkable enhancement of the antibiotic efficacy towards multidrug-resistant CF clinical strains. PDSTP-ceftazidime combination maintained its efficacy in vivo in a Galleria mellonella infection model. Finally, the compound showed a promising biofilm inhibitory activity at low concentrations when tested both in vitro and using an ex vivo pig lung model. Altogether, these results validate PDSTP as a promising compound, combining the ability to decrease P. aeruginosa virulence by impairing its adhesion and biofilm formation, with the capability to increase antibiotic efficacy against antibiotic resistant strains.
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Affiliation(s)
- Andrea Bonacorsi
- Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia, Pavia, Italy
| | - Gabriele Trespidi
- Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia, Pavia, Italy
| | - Viola C. Scoffone
- Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia, Pavia, Italy
| | - Samuele Irudal
- Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia, Pavia, Italy
| | - Giulia Barbieri
- Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia, Pavia, Italy
| | - Olga Riabova
- Research Center of Biotechnology RAS, Moscow, Russia
| | | | - Vadim Makarov
- Research Center of Biotechnology RAS, Moscow, Russia
| | - Silvia Buroni
- Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia, Pavia, Italy
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2
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Kaczyńska K, Jampolska M, Wojciechowski P, Sulejczak D, Andrzejewski K, Zając D. Potential of Lactoferrin in the Treatment of Lung Diseases. Pharmaceuticals (Basel) 2023; 16:192. [PMID: 37259341 PMCID: PMC9960651 DOI: 10.3390/ph16020192] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 01/18/2023] [Accepted: 01/24/2023] [Indexed: 11/07/2023] Open
Abstract
Lactoferrin (LF) is a multifunctional iron-binding glycoprotein that exhibits a variety of properties, such as immunomodulatory, anti-inflammatory, antimicrobial, and anticancer, that can be used to treat numerous diseases. Lung diseases continue to be the leading cause of death and disability worldwide. Many of the therapies currently used to treat these diseases have limited efficacy or are associated with side effects. Therefore, there is a constant pursuit for new drugs and therapies, and LF is frequently considered a therapeutic agent and/or adjunct to drug-based therapies for the treatment of lung diseases. This article focuses on a review of the existing and most up-to-date literature on the contribution of the beneficial effects of LF on the treatment of lung diseases, including asthma, viral infections, cystic fibrosis, or lung cancer, among others. Although in vitro and in vivo studies indicate significant potency of LF in the treatment of the listed diseases, only in the case of respiratory tract infections do human studies seem to confirm them by demonstrating the effectiveness of LF in reducing episodes of illness and shortening the recovery period. For lung cancer, COVID-19 and sepsis, the reports are conflicting, and for other diseases, there is a paucity of human studies conclusively confirming the beneficial effects of LF.
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Affiliation(s)
- Katarzyna Kaczyńska
- Department of Respiration Physiology, Mossakowski Medical Research Institute, Polish Academy of Sciences, Pawińskiego 5 St., 02-106 Warsaw, Poland
| | - Monika Jampolska
- Department of Respiration Physiology, Mossakowski Medical Research Institute, Polish Academy of Sciences, Pawińskiego 5 St., 02-106 Warsaw, Poland
| | - Piotr Wojciechowski
- Department of Respiration Physiology, Mossakowski Medical Research Institute, Polish Academy of Sciences, Pawińskiego 5 St., 02-106 Warsaw, Poland
| | - Dorota Sulejczak
- Department of Experimental Pharmacology, Mossakowski Medical Research Institute, Polish Academy of Sciences, Pawińskiego 5 St., 02-106 Warsaw, Poland
| | - Kryspin Andrzejewski
- Department of Respiration Physiology, Mossakowski Medical Research Institute, Polish Academy of Sciences, Pawińskiego 5 St., 02-106 Warsaw, Poland
| | - Dominika Zając
- Department of Respiration Physiology, Mossakowski Medical Research Institute, Polish Academy of Sciences, Pawińskiego 5 St., 02-106 Warsaw, Poland
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3
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Avalos-Gómez C, Ramírez-Rico G, Ruiz-Mazón L, Sicairos NL, Serrano-Luna J, de la Garza M. Lactoferrin: An Effective Weapon in the Battle Against Bacterial Infections. Curr Pharm Des 2022; 28:3243-3260. [PMID: 36284379 DOI: 10.2174/1381612829666221025153216] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 09/27/2022] [Indexed: 01/28/2023]
Abstract
The emergence of multidrug-resistant bacterial strains with respect to commercially available antimicrobial drugs has marked a watershed in treatment therapies to fight pathogens and has stimulated research on alternative remedies. Proteins of the innate immune system of mammals have been highlighted as potentially yielding possible treatment options for infections. Lactoferrin (Lf) is one of these proteins; interestingly, no resistance to it has been found. Lf is a conserved cationic nonheme glycoprotein that is abundant in milk and is also present in low quantities in mucosal secretions. Moreover, Lf is produced and secreted by the secondary granules of neutrophils at infection sites. Lf is a molecule of approximately 80 kDa that displays multiple functions, such as antimicrobial, anti-viral, anti-inflammatory, and anticancer actions. Lf can synergize with antibiotics, increasing its potency against bacteria. Lactoferricins (Lfcins) are peptides resulting from the N-terminal end of Lf by proteolytic cleavage with pepsin. They exhibit several anti-bacterial effects similar to those of the parental glycoprotein. Synthetic analog peptides exhibiting potent antimicrobial properties have been designed. The aim of this review is to update understanding of the structure and effects of Lf and Lfcins as anti-bacterial compounds, focusing on the mechanisms of action in bacteria and the use of Lf in treatment of infections in patients, including those studies where no significant differences were found. Lf could be an excellent option for prevention and treatment of bacterial diseases, mainly in combined therapies with antibiotics or other antimicrobials.
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Affiliation(s)
- Christian Avalos-Gómez
- Departamento de Biología Celular, Centro de Investigación y de Estudios Avanzados del IPN, Ciudad de Mexico, Mexico
| | - Gerardo Ramírez-Rico
- Departamento de Biología Celular, Centro de Investigación y de Estudios Avanzados del IPN, Ciudad de Mexico, Mexico.,Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México (UNAM), Km 2.5 Carretera Cuautitlán- Teoloyucan, Cuautitlán Izcalli, 54714, Mexico
| | - Lucero Ruiz-Mazón
- Departamento de Biología Celular, Centro de Investigación y de Estudios Avanzados del IPN, Ciudad de Mexico, Mexico
| | - Nidia León Sicairos
- Departamento de Investigación, Hospital Pediátrico de Sinaloa, Unidad de Investigación, Facultad de Medicina, Universidad Autónoma de Sinaloa, Mexico
| | - Jesús Serrano-Luna
- Departamento de Biología Celular, Centro de Investigación y de Estudios Avanzados del IPN, Ciudad de Mexico, Mexico
| | - Mireya de la Garza
- Departamento de Biología Celular, Centro de Investigación y de Estudios Avanzados del IPN, Ciudad de Mexico, Mexico
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4
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Chai J, Liu X, Usdrowski H, Deng F, Li Y, Zhao J. Geography, niches, and transportation influence bovine respiratory microbiome and health. Front Cell Infect Microbiol 2022; 12:961644. [PMID: 36171758 PMCID: PMC9510686 DOI: 10.3389/fcimb.2022.961644] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Accepted: 08/17/2022] [Indexed: 11/13/2022] Open
Abstract
Bovine respiratory disease (BRD), one of the most common and infectious diseases in the beef industry, is associated with the respiratory microbiome and stressors of transportation. The impacts of the bovine respiratory microbiota on health and disease across different geographic locations and sampling niches are poorly understood, resulting in difficult identification of BRD causes. In this study, we explored the effects of geography and niches on the bovine respiratory microbiome and its function by re-analyzing published metagenomic datasets and estimated the main opportunistic pathogens that changed after transportation. The results showed that diversity, composition, structure, and function of the bovine nasopharyngeal microbiota were different across three worldwide geographic locations. The lung microbiota also showed distinct microbial composition and function compared with nasopharyngeal communities from different locations. Although different signature microbiota for each geographic location were identified, a module with co-occurrence of Mycoplasma species was observed in all bovine respiratory communities regardless of geography. Moreover, transportation, especially long-distance shipping, could increase the relative abundance of BRD-associated pathogens. Lung microbiota from BRD calves shaped clusters dominated with different pathogens. In summary, geography, sampling niches, and transportation are important factors impacting the bovine respiratory microbiome and disease, and clusters of lung microbiota by different bacterial species may explain BRD pathogenesis, suggesting the importance of a deeper understanding of bovine respiratory microbiota in health.
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Affiliation(s)
- Jianmin Chai
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, College of Life Science and Engineering, Foshan University, Foshan, China.,School of Life Science and Engineering, Foshan University, Foshan, China.,Division of Agriculture, Department of Animal Science, University of Arkansas, Fayetteville, AR, United States
| | - Xinting Liu
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, College of Life Science and Engineering, Foshan University, Foshan, China.,School of Life Science and Engineering, Foshan University, Foshan, China
| | - Hunter Usdrowski
- Division of Agriculture, Department of Animal Science, University of Arkansas, Fayetteville, AR, United States
| | - Feilong Deng
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, College of Life Science and Engineering, Foshan University, Foshan, China.,School of Life Science and Engineering, Foshan University, Foshan, China
| | - Ying Li
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, College of Life Science and Engineering, Foshan University, Foshan, China.,School of Life Science and Engineering, Foshan University, Foshan, China
| | - Jiangchao Zhao
- Division of Agriculture, Department of Animal Science, University of Arkansas, Fayetteville, AR, United States
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5
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Castellani S, D'Oria S, Diana A, Polizzi AM, Di Gioia S, Mariggiò MA, Guerra L, Favia M, Vinella A, Leonetti G, De Venuto D, Gallo C, Montemurro P, Conese M. G-CSF and GM-CSF Modify Neutrophil Functions at Concentrations found in Cystic Fibrosis. Sci Rep 2019; 9:12937. [PMID: 31506515 PMCID: PMC6736848 DOI: 10.1038/s41598-019-49419-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 08/23/2019] [Indexed: 02/08/2023] Open
Abstract
The role of colony stimulating factors (CSFs) in cystic fibrosis (CF) circulating neutrophils has not been thoroughly evaluated, considering that the neutrophil burden of lung inflammation in these subjects is very high. The aim of this study was to assess granulocyte-CSF (G-CSF) and granulocyte-macrophage-CSF (GM-CSF) levels in CF patients in various clinical conditions and how these cytokines impact on activation and priming of neutrophils. G-CSF and GM-CSF levels were measured in sputum and serum samples of stable CF patients (n = 21) and in CF patients with acute exacerbation before and after a course of antibiotic therapy (n = 19). CSFs were tested on non CF neutrophils to investigate their effects on reactive oxygen species (ROS) production, degranulation (CD66b, elastase, lactoferrin, MMP-9), and chemotaxis. At very low concentrations found in CF patients (0.005–0.1 ng/ml), both cytokines inhibited ROS production, while higher concentrations (1–5 ng/ml) exerted a stimulatory effect. While either CSF induced elastase and MMP-9 secretion, lactoferrin levels were increased only by G-CSF. Chemotaxis was inhibited by GM-CSF, but was increased by G-CSF. However, when present together at low concentrations, CSFs increased basal and fMLP-stimulated ROS production and chemotaxis. These results suggest the CSF levels that circulating neutrophils face before extravasating into the lungs of CF patients may enhance their function contributing to the airway damage.
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Affiliation(s)
- Stefano Castellani
- Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - Susanna D'Oria
- Department of Biomedical Sciences and Human Oncology, Section of General Pathology, University of Bari, Bari, Italy
| | - Anna Diana
- Department of Biomedical Sciences and Human Oncology, Section of Medical Genetics, University of Bari, Bari, Italy
| | - Angela Maria Polizzi
- Department of Biomedical Sciences and Human Oncology, Section of Medical Genetics, University of Bari, Bari, Italy
| | - Sante Di Gioia
- Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - Maria Addolorata Mariggiò
- Department of Biomedical Sciences and Human Oncology, Section of General Pathology, University of Bari, Bari, Italy
| | - Lorenzo Guerra
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, Bari, Italy
| | - Maria Favia
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, Bari, Italy
| | - Angela Vinella
- Department of Biomedical Sciences and Human Oncology, Section of General Pathology, University of Bari, Bari, Italy
| | - Giuseppina Leonetti
- Cystic Fibrosis Regional Center, Department of Biomedical and Human Oncology, Pediatrics Section, U.O. "B. Trambusti", Policlinico, University of Bari, Bari, Italy
| | - Domenica De Venuto
- Cystic Fibrosis Regional Center, Department of Biomedical and Human Oncology, Pediatrics Section, U.O. "B. Trambusti", Policlinico, University of Bari, Bari, Italy
| | - Crescenzio Gallo
- Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | - Pasqualina Montemurro
- Department of Biomedical Sciences and Human Oncology, Section of General Pathology, University of Bari, Bari, Italy.
| | - Massimo Conese
- Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy.
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6
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Cutone A, Lepanto MS, Rosa L, Scotti MJ, Rossi A, Ranucci S, De Fino I, Bragonzi A, Valenti P, Musci G, Berlutti F. Aerosolized Bovine Lactoferrin Counteracts Infection, Inflammation and Iron Dysbalance in A Cystic Fibrosis Mouse Model of Pseudomonas aeruginosa Chronic Lung Infection. Int J Mol Sci 2019; 20:ijms20092128. [PMID: 31052156 PMCID: PMC6540064 DOI: 10.3390/ijms20092128] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 04/24/2019] [Accepted: 04/25/2019] [Indexed: 02/07/2023] Open
Abstract
Cystic fibrosis (CF) is a genetic disorder affecting several organs including airways. Bacterial infection, inflammation and iron dysbalance play a major role in the chronicity and severity of the lung pathology. The aim of this study was to investigate the effect of lactoferrin (Lf), a multifunctional iron-chelating glycoprotein of innate immunity, in a CF murine model of Pseudomonas aeruginosa chronic lung infection. To induce chronic lung infection, C57BL/6 mice, either cystic fibrosis transmembrane conductance regulator (CFTR)-deficient (Cftrtm1UNCTgN(FABPCFTR)#Jaw) or wild-type (WT), were intra-tracheally inoculated with multidrug-resistant MDR-RP73 P. aeruginosa embedded in agar beads. Treatments with aerosolized bovine Lf (bLf) or saline were started five minutes after infection and repeated daily for six days. Our results demonstrated that aerosolized bLf was effective in significantly reducing both pulmonary bacterial load and infiltrated leukocytes in infected CF mice. Furthermore, for the first time, we showed that bLf reduced pulmonary iron overload, in both WT and CF mice. In particular, at molecular level, a significant decrease of both the iron exporter ferroportin and iron storage ferritin, as well as luminal iron content was observed. Overall, bLf acts as a potent multi-targeting agent able to break the vicious cycle induced by P. aeruginosa, inflammation and iron dysbalance, thus mitigating the severity of CF-related pathology and sequelae.
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Affiliation(s)
- Antimo Cutone
- Department of Biosciences and Territory, University of Molise, 86090 Pesche, Italy.
- Department of Public Health and Infectious Diseases, University of Rome La Sapienza, 00185 Rome, Italy.
| | - Maria Stefania Lepanto
- Department of Public Health and Infectious Diseases, University of Rome La Sapienza, 00185 Rome, Italy.
| | - Luigi Rosa
- Department of Public Health and Infectious Diseases, University of Rome La Sapienza, 00185 Rome, Italy.
| | - Mellani Jinnett Scotti
- Department of Public Health and Infectious Diseases, University of Rome La Sapienza, 00185 Rome, Italy.
| | - Alice Rossi
- Infections and Cystic Fibrosis Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, 20132 Milano, Italy.
| | - Serena Ranucci
- Infections and Cystic Fibrosis Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, 20132 Milano, Italy.
| | - Ida De Fino
- Infections and Cystic Fibrosis Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, 20132 Milano, Italy.
| | - Alessandra Bragonzi
- Infections and Cystic Fibrosis Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, 20132 Milano, Italy.
| | - Piera Valenti
- Department of Public Health and Infectious Diseases, University of Rome La Sapienza, 00185 Rome, Italy.
| | - Giovanni Musci
- Department of Biosciences and Territory, University of Molise, 86090 Pesche, Italy.
| | - Francesca Berlutti
- Department of Public Health and Infectious Diseases, University of Rome La Sapienza, 00185 Rome, Italy.
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7
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Abstract
PURPOSE Pseudomonas aeruginosa produces pyoverdine, encoded by the pvdE gene, for high-affinity iron uptake from transferrin and lactoferrin. This study investigated the contribution of pyoverdine to P. aeruginosa keratitis pathogenesis using in vitro and in vivo models. METHODS The P. aeruginosa strains examined were parental strain PAO1 and isogenic mutant strain pvdE (ΔpvdE) defective in pyoverdine. Bacterial growth in vitro was determined by PAO1 and ΔpvdE optical densities in Luria-Bertani (LB) broth. PAO1 or ΔpvdE (10 colony-forming units/mL) was inoculated onto cultured human corneal epithelial cells (HCECs) for 1 hour. The monolayers were examined for bacterial adhesion and invasion. In addition, the corneas of C57BL/6 mice were infected with PAO1 or ΔpvdE. Corneal virulence was evaluated by determining clinical scores and bacterial counts during infection. RESULTS The growth of PAO1 and ΔpvdE in LB broth was similar. Although adhesion of ΔpvdE onto HCECs was significantly increased compared with PAO1, the invasive capacity of ΔpvdE was significantly decreased. Clinical scores and bacterial numbers were significantly lower in ΔpvdE-infected eyes compared with PAO1-infected eyes at 6, 24, and 48 hours (P < 0.001). ΔpvdE was not detected in mouse corneas and did not induce corneal opacity at 6, 24, or 48 hours. CONCLUSIONS ΔpvdE lost invasive ability toward HCECs. Moreover, ΔpvdE did not cause keratitis in vivo. Thus, pvdE pyoverdine synthesis has critical roles in proliferation and invasion on ocular surfaces and could be a target for prevention of P. aeruginosa keratitis.
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8
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Mancinelli R, Olivero F, Carpino G, Overi D, Rosa L, Lepanto MS, Cutone A, Franchitto A, Alpini G, Onori P, Valenti P, Gaudio E. Role of lactoferrin and its receptors on biliary epithelium. Biometals 2018; 31:369-379. [PMID: 29550924 DOI: 10.1007/s10534-018-0094-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Accepted: 03/13/2018] [Indexed: 02/07/2023]
Abstract
Human lactoferrin is an iron-binding glycoprotein present at high concentrations in breast milk and colostrum. It is produced by many exocrine glands and widely distributed in a variety of body fluids. This protein has antimicrobial, immunomodulatory, antioxidant, and anticancer properties. Two important hLf receptors have been identified: LDL receptor related protein (LRP1), a low specificity receptor, and intelectin-1 (ITLN1), a high specificity receptor. No data are present on the role of hLf on the biliary epithelium. Our aims have been to evaluate the expression of Lf and its receptors in human and murine cholangiocytes and its effect on proliferation. Immunohistochemistry and immunofluorescence (IF) were conducted on human healthy and primary biliary cholangitis (PBC) liver samples as well as on liver samples obtained from normal and bile duct ligated (BDL) mice to evaluate the expression of Lf, LRP1 and ITLN1. Cell proliferation in vitro studies were performed on human cholangiocyte cell lines via 3-(4,5-dimetiltiazol-2-il)-2,5-diphenyltetrazolium assay as well as IF to evaluate proliferating cell nuclear antigen (PCNA) expression. Our results show that mouse and human cholangiocytes express Lf, LRP1 and ITLN1, at higher extent in cholangiocytes from BDL and PBC samples. Furthermore, the in vitro addition of bovine Lf (bLf) has a proliferative effect on human cholangiocyte cell line. The results support a proliferative role of hLf on the biliary epithelium; this pro-proliferative effect of hLf and bLf on cholangiocytes could be particularly relevant in human cholangiopathies such as PBC, characterized by cholangiocyte death and ductopenia.
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Affiliation(s)
- Romina Mancinelli
- Department of Anatomical, Histological, Forensic and Orthopedic Sciences, Sapienza University of Rome, Rome, Italy.
| | - Francesca Olivero
- Department of Anatomical, Histological, Forensic and Orthopedic Sciences, Sapienza University of Rome, Rome, Italy
| | - Guido Carpino
- Department of Movement, Human and Health Sciences, Sapienza University of Rome, Rome, Italy
| | - Diletta Overi
- Department of Anatomical, Histological, Forensic and Orthopedic Sciences, Sapienza University of Rome, Rome, Italy
| | - Luigi Rosa
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
| | - Maria Stefania Lepanto
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
| | - Antimo Cutone
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
| | - Antonio Franchitto
- Department of Anatomical, Histological, Forensic and Orthopedic Sciences, Sapienza University of Rome, Rome, Italy
| | - Gianfranco Alpini
- Research, Central Texas Veterans Health Care System, Baylor Scott & White Digestive Disease Research Center, Baylor Scott & White, Department of Medical Physiology, Texas A&M University College of Medicine, Temple, TX, 76504, USA
| | - Paolo Onori
- Department of Anatomical, Histological, Forensic and Orthopedic Sciences, Sapienza University of Rome, Rome, Italy
| | - Piera Valenti
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
| | - Eugenio Gaudio
- Department of Anatomical, Histological, Forensic and Orthopedic Sciences, Sapienza University of Rome, Rome, Italy
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9
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Abstract
Human and bovine lactoferrin (hLf and bLf) are multifunctional iron-binding glycoprotein constitutively synthesized and secreted by glandular epithelial cells and by neutrophils following induction. HLf and bLf possess very high similarity of sequence. Therefore, most of the in vitro and in vivo studies are carried out with commercial bLf (cbLf), available in large quantities and recognized by Food and Drug Administration (FDA, USA) as a safe substance. Physico-chemical heterogeneity of different cbLf preparations influences their effectiveness. CbLf iron-saturation affects thermal stability and resistance to proteolysis. Moreover, other metal ions such as Al(III), Cu(II), Mg(II), Mn(II), Zn(II) are chelated by cbLf, even if at lower affinity than Fe(III). Ca(II) is also sequestered by the carboxylate groups of sialic acid present on glycan chains of cbLf thus provoking the release of LPS, contributing to bactericidal activity. Similarly to more than 50% of eukaryotic proteins, cbLf possesses five N-glycosylation sites, also contributing to the resistance to proteolysis and, putatively, to the protection of intestinal mucosa from pathogens. CbLfs possess several functions as anti-microbial, anti-biofilm, anti-adhesive, anti-invasive and anti-inflammatory activities. They are also relevant modulators of iron and inflammatory homeostasis. However, the efficacy of cbLfs in exerting several functions can be erratic mainly depending from integrity, degree of iron and other metal ions saturation, N-glycosylation sites and chains, desialylated forms, Ca(II) sequestration, presence of contaminants and finally the ability to enter inside nucleus.
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10
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Castellani M, Felaco M, Pandolfi F, Salini V, De Amicis D, Orso C, Vecchiet J, Tetè S, Ciampoli C, Conti F, Cerulli G, Caraffa A, Antinolfi P, Cuccurullo C, Felaco P, Kempuraj D, Boscolo P, Sabatino G, Shaik Y. Mast Cells and Arachidonic Acid Cascade in Inflammation. EUR J INFLAMM 2017. [DOI: 10.1177/1721727x0900700302] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Prostaglandin D2 PGD2 is a major cyclooxygenase metabolite of arachidonic acid produced by mast cells and it is released following allergen challenge in diseases, such as allergic diseases. PGD2 may act as a neuromodulator and as an allergic and inflammatory mediator. In allergic diseases, activated mast cell synthesizes prostaglandin D2 (first cyclo-oxygenate mediator) which has bronchoconstrictive and vasodilating effects and attracts several leukocytes. It has been found that activated mast cells, challenged with physiological and non- physiological secretagogues, release elevated histamine and tryptase and chymase, leukotrienes B4, C4 and D4, 5-hydroxyeicosatetraenoic acid, PGD2, Platelet Activating Factor (PAF), heparin, and high-molecular-weight neutrophil chemotactic factor and cytokines/chemokines. PGD2 exerts its biological activity through the DP and CRTH2 receptors and their cDNA cloning which were characterized 15 years ago. In this report, we revisited the biological effects of arachidonic acid compounds released by activated mast cells in allergic and inflammatory states.
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Affiliation(s)
- M.L. Castellani
- Immunology Division, Medical School, University of Chieti-Pescara, Italy
| | - M. Felaco
- Division of Biology, University of Chieti, Italy
| | | | - V. Salini
- Department of Human Dynamics, University of Chieti-Pescara, Italy
| | - D. De Amicis
- Department of Human Dynamics, University of Chieti-Pescara, Italy
| | - C. Orso
- Department of Human Dynamics, University of Chieti-Pescara, Italy
| | - J. Vecchiet
- Clinic of Infectious Diseases, Medical School, University of Chieti-Pescara, Italy
| | - S. Tetè
- Dental School, University of Chieti-Pescara, Italy
| | - C. Ciampoli
- Dental School, University of Chieti-Pescara, Italy
| | - F. Conti
- Gynecology Division, University of Chieti, Italy
| | - G. Cerulli
- Orthopeadics Division, University of Perugia, Italy
| | - A. Caraffa
- Orthopeadics Division, University of Perugia, Italy
| | - P. Antinolfi
- Orthopeadics Division, University of Perugia, Italy
| | | | - P. Felaco
- Nephrology Division, University of Chieti, Chieti, Italy
| | - D. Kempuraj
- Department of Pharmacology and Experimental Therapeutics, Biochemistry and Internal Medicine Tufts University School of Medicine, Tufts-New England Medical Center, Boston, MA, USA
| | - P. Boscolo
- Department of Biomedical Science, University of Chieti, Chieti, Italy
| | - G. Sabatino
- Department of Paediatrics, G. d'Annunzio University of Chieti-Pescara, Chieti, Italy
| | - Y.B. Shaik
- Department of Medicine, Boston University School of Medicine, Boston, MA, USA
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11
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Rosa L, Cutone A, Lepanto MS, Paesano R, Valenti P. Lactoferrin: A Natural Glycoprotein Involved in Iron and Inflammatory Homeostasis. Int J Mol Sci 2017; 18:1985. [PMID: 28914813 PMCID: PMC5618634 DOI: 10.3390/ijms18091985&n948647=v984776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Human lactoferrin (hLf), an iron-binding multifunctional cationic glycoprotein secreted by exocrine glands and by neutrophils, is a key element of host defenses. HLf and bovine Lf (bLf), possessing high sequence homology and identical functions, inhibit bacterial growth and biofilm dependently from iron binding ability while, independently, bacterial adhesion to and the entry into cells. In infected/inflamed host cells, bLf exerts an anti-inflammatory activity against interleukin-6 (IL-6), thus up-regulating ferroportin (Fpn) and transferrin receptor 1 (TfR1) and down-regulating ferritin (Ftn), pivotal actors of iron and inflammatory homeostasis (IIH). Consequently, bLf inhibits intracellular iron overload, an unsafe condition enhancing in vivo susceptibility to infections, as well as anemia of inflammation (AI), re-establishing IIH. In pregnant women, affected by AI, bLf oral administration decreases IL-6 and increases hematological parameters. This surprising effect is unrelated to iron supplementation by bLf (80 μg instead of 1-2 mg/day), but to its role on IIH. AI is unrelated to the lack of iron, but to iron delocalization: cellular/tissue overload and blood deficiency. BLf cures AI by restoring iron from cells to blood through Fpn up-expression. Indeed, anti-inflammatory activity of oral and intravaginal bLf prevents preterm delivery. Promising bLf treatments can prevent/cure transitory inflammation/anemia/oral pathologies in athletes.
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Affiliation(s)
- Luigi Rosa
- Department of Public Health and Infectious Diseases, University of Rome La Sapienza, 00185 Rome, Italy.
| | - Antimo Cutone
- Department of Public Health and Infectious Diseases, University of Rome La Sapienza, 00185 Rome, Italy.
| | - Maria Stefania Lepanto
- Department of Public Health and Infectious Diseases, University of Rome La Sapienza, 00185 Rome, Italy.
| | - Rosalba Paesano
- Department of Gynecological-Obstetric and Urological Sciences, University of Rome La Sapienza, 00185 Rome, Italy.
| | - Piera Valenti
- Department of Public Health and Infectious Diseases, University of Rome La Sapienza, 00185 Rome, Italy.
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12
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Rosa L, Cutone A, Lepanto MS, Paesano R, Valenti P. Lactoferrin: A Natural Glycoprotein Involved in Iron and Inflammatory Homeostasis. Int J Mol Sci 2017; 18:E1985. [PMID: 28914813 PMCID: PMC5618634 DOI: 10.3390/ijms18091985] [Citation(s) in RCA: 207] [Impact Index Per Article: 29.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 09/11/2017] [Accepted: 09/12/2017] [Indexed: 02/07/2023] Open
Abstract
Human lactoferrin (hLf), an iron-binding multifunctional cationic glycoprotein secreted by exocrine glands and by neutrophils, is a key element of host defenses. HLf and bovine Lf (bLf), possessing high sequence homology and identical functions, inhibit bacterial growth and biofilm dependently from iron binding ability while, independently, bacterial adhesion to and the entry into cells. In infected/inflamed host cells, bLf exerts an anti-inflammatory activity against interleukin-6 (IL-6), thus up-regulating ferroportin (Fpn) and transferrin receptor 1 (TfR1) and down-regulating ferritin (Ftn), pivotal actors of iron and inflammatory homeostasis (IIH). Consequently, bLf inhibits intracellular iron overload, an unsafe condition enhancing in vivo susceptibility to infections, as well as anemia of inflammation (AI), re-establishing IIH. In pregnant women, affected by AI, bLf oral administration decreases IL-6 and increases hematological parameters. This surprising effect is unrelated to iron supplementation by bLf (80 μg instead of 1-2 mg/day), but to its role on IIH. AI is unrelated to the lack of iron, but to iron delocalization: cellular/tissue overload and blood deficiency. BLf cures AI by restoring iron from cells to blood through Fpn up-expression. Indeed, anti-inflammatory activity of oral and intravaginal bLf prevents preterm delivery. Promising bLf treatments can prevent/cure transitory inflammation/anemia/oral pathologies in athletes.
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Affiliation(s)
- Luigi Rosa
- Department of Public Health and Infectious Diseases, University of Rome La Sapienza, 00185 Rome, Italy.
| | - Antimo Cutone
- Department of Public Health and Infectious Diseases, University of Rome La Sapienza, 00185 Rome, Italy.
| | - Maria Stefania Lepanto
- Department of Public Health and Infectious Diseases, University of Rome La Sapienza, 00185 Rome, Italy.
| | - Rosalba Paesano
- Department of Gynecological-Obstetric and Urological Sciences, University of Rome La Sapienza, 00185 Rome, Italy.
| | - Piera Valenti
- Department of Public Health and Infectious Diseases, University of Rome La Sapienza, 00185 Rome, Italy.
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13
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Bonifacio MA, Cometa S, Dicarlo M, Baruzzi F, de Candia S, Gloria A, Giangregorio MM, Mattioli-Belmonte M, De Giglio E. Gallium-modified chitosan/poly(acrylic acid) bilayer coatings for improved titanium implant performances. Carbohydr Polym 2017; 166:348-357. [PMID: 28385242 DOI: 10.1016/j.carbpol.2017.03.009] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Revised: 02/28/2017] [Accepted: 03/05/2017] [Indexed: 11/29/2022]
Abstract
A gallium-modified chitosan/poly(acrylic acid) bilayer was obtained by electrochemical techniques on titanium to reduce orthopaedic and/or dental implants failure. The bilayer in vitro antibacterial properties and biocompatibility were evaluated against Escherichia coli and Pseudomonas aeruginosa and on MG63 osteoblast-like cells, respectively. Gallium loading into the bilayer was carefully tuned by the electrochemical deposition time to ensure the best balance between antibacterial activity and cytocompatibility. The 30min deposition time was able to reduce in vitro the viable cell counts of E. coli and P. aeruginosa of 2 and 3 log cfu/sheet, respectively. Our results evidenced that the developed antibacterial coating did not considerably alter the mechanical flexural properties of titanium substrates and, in addition, influenced positively MG63 adhesion and proliferation. Therefore, the gallium-modified chitosan/poly(acrylic acid) bilayer can be exploited as a promising titanium coating to limit bacterial adhesion and proliferation, while maintaining osseointegrative potential.
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Affiliation(s)
| | | | - Manuela Dicarlo
- Dept. of Clinical and Molecular Sciences, Università Politecnica delle Marche, Ancona, Italy
| | - Federico Baruzzi
- Institute of Sciences of Food Production (ISPA-CNR), National Research Council of Italy, Bari
| | - Silvia de Candia
- Institute of Sciences of Food Production (ISPA-CNR), National Research Council of Italy, Bari
| | - Antonio Gloria
- Institute of Polymers, Composites and Biomaterials (IPCB-CNR), National Research Council of Italy, Napoli, Italy
| | - Maria M Giangregorio
- Institute of Nanotechnology (NANOTEC-CNR), National Research Council of Italy, Bari, Italy
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14
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Sessa R, Di Pietro M, Filardo S, Bressan A, Rosa L, Cutone A, Frioni A, Berlutti F, Paesano R, Valenti P. Effect of bovine lactoferrin on Chlamydia trachomatis infection and inflammation. Biochem Cell Biol 2016; 95:34-40. [PMID: 28094551 DOI: 10.1139/bcb-2016-0049] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Chlamydia trachomatis is an obligate, intracellular pathogen responsible for the most common sexually transmitted bacterial disease worldwide, causing acute and chronic infections. The acute infection is susceptible to antibiotics, whereas the chronic one needs prolonged therapies, thus increasing the risk of developing antibiotic resistance. Novel alternative therapies are needed. The intracellular development of C. trachomatis requires essential nutrients, including iron. Iron-chelating drugs inhibit C. trachomatis developmental cycle. Lactoferrin (Lf), a pleiotropic iron binding glycoprotein, could be a promising candidate against C. trachomatis infection. Similarly to the efficacy against other intracellular pathogens, bovine Lf (bLf) could both interfere with C. trachomatis entry into epithelial cells and exert an anti-inflammatory activity. In vitro and in vivo effects of bLf against C. trachomatis infectious and inflammatory process has been investigated. BLf inhibits C. trachomatis entry into host cells when incubated with cell monolayers before or at the moment of the infection and down-regulates IL-6/IL-8 synthesized by infected cells. Six out of 7 pregnant women asymptomatically infected by C. trachomatis, after 30 days of bLf intravaginal administration, were negative for C. trachomatis and showed a decrease of cervical IL-6 levels. This is the first time that the bLf protective effect against C. trachomatis infection has been demonstrated.
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Affiliation(s)
- Rosa Sessa
- a Department of Public Health and Infectious Diseases, University of Rome, La Sapienza, Rome, Italy
| | - Marisa Di Pietro
- a Department of Public Health and Infectious Diseases, University of Rome, La Sapienza, Rome, Italy
| | - Simone Filardo
- a Department of Public Health and Infectious Diseases, University of Rome, La Sapienza, Rome, Italy
| | - Alessia Bressan
- a Department of Public Health and Infectious Diseases, University of Rome, La Sapienza, Rome, Italy
| | - Luigi Rosa
- a Department of Public Health and Infectious Diseases, University of Rome, La Sapienza, Rome, Italy
| | - Antimo Cutone
- a Department of Public Health and Infectious Diseases, University of Rome, La Sapienza, Rome, Italy
| | - Alessandra Frioni
- a Department of Public Health and Infectious Diseases, University of Rome, La Sapienza, Rome, Italy
| | - Francesca Berlutti
- a Department of Public Health and Infectious Diseases, University of Rome, La Sapienza, Rome, Italy
| | - Rosalba Paesano
- b Department of Gynecological-Obstetric and Urological Sciences, University of Rome, La Sapienza, Rome, Italy
| | - Piera Valenti
- a Department of Public Health and Infectious Diseases, University of Rome, La Sapienza, Rome, Italy
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15
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Tyrrell J, Callaghan M. Iron acquisition in the cystic fibrosis lung and potential for novel therapeutic strategies. MICROBIOLOGY-SGM 2015; 162:191-205. [PMID: 26643057 DOI: 10.1099/mic.0.000220] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Iron acquisition is vital to microbial survival and is implicated in the virulence of many of the pathogens that reside in the cystic fibrosis (CF) lung. The multifaceted nature of iron acquisition by both bacterial and fungal pathogens encompasses a range of conserved and species-specific mechanisms, including secretion of iron-binding siderophores, utilization of siderophores from other species, release of iron from host iron-binding proteins and haemoproteins, and ferrous iron uptake. Pathogens adapt and deploy specific systems depending on iron availability, bioavailability of the iron pool, stage of infection and presence of competing pathogens. Understanding the dynamics of pathogen iron acquisition has the potential to unveil new avenues for therapeutic intervention to treat both acute and chronic CF infections. Here, we examine the range of strategies utilized by the primary CF pathogens to acquire iron and discuss the different approaches to targeting iron acquisition systems as an antimicrobial strategy.
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Affiliation(s)
- Jean Tyrrell
- Centre of Microbial Host Interactions, Institute of Technology Tallaght, Dublin D24KT9, Ireland
| | - Máire Callaghan
- Centre of Microbial Host Interactions, Institute of Technology Tallaght, Dublin D24KT9, Ireland
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16
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Shteinberg M, Rivlin J, Gur M, Konopnicki M, Stein N, Tunney MM, Elborn JS, Downey DG, Johnston E, Shalom H, Levy A. Lack of Association Between Haptoglobin Phenotype and Cystic Fibrosis Outcomes. Lung 2015; 193:1017-21. [PMID: 26370551 DOI: 10.1007/s00408-015-9801-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Accepted: 09/07/2015] [Indexed: 11/25/2022]
Abstract
Haptoglobin (Hp), a heme-Iron chelator, has different isoforms which are associated with variable tendency toward infections: Hp 1-1, Hp 2-1, and Hp 2-2. Cystic fibrosis (CF) outcomes are variable and influenced by genetic and environmental factors. The aim of this study was to determine whether Hp phenotype influenced disease severity in CF. One hundred forty-two CF patients from two centers were analyzed for Haptoglobin phenotype using gel electrophoresis of hemoglobin enriched serum. Clinical and microbiological data including bacterial colonization status, lung function, presence of CF-related diabetes and liver disease, rate of exacerbation, and mortality were compared between Hp phenotype groups. We found a trend toward less mucoid PA among Hp 2-2 (20.4 %) compared with Hp 1-1 and Hp 2-1 individuals (33.3 %), p = 0.317. Hp 2-2 individuals also had less antibiotic courses, and lower inflammatory markers without statistical significance. Haptoglobin phenotype is unlikely to be an important modifier of CF phenotype.
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Affiliation(s)
- Michal Shteinberg
- CF Center, Carmel Medical Center, Haifa, Israel. .,Queens University Belfast, Belfast, UK. .,The B. Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel. .,Pulnonary Institute, Carmel Medical Center, 7 Michal St., 3463209, Haifa, Israel.
| | | | - Michal Gur
- CF Center, Carmel Medical Center, Haifa, Israel
| | | | - Nili Stein
- CF Center, Carmel Medical Center, Haifa, Israel
| | | | | | | | | | - Hadar Shalom
- The B. Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
| | - Andrew Levy
- The B. Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
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Al-Maleki AR, Mariappan V, Vellasamy KM, Tay ST, Vadivelu J. Altered Proteome of Burkholderia pseudomallei Colony Variants Induced by Exposure to Human Lung Epithelial Cells. PLoS One 2015; 10:e0127398. [PMID: 25996927 PMCID: PMC4440636 DOI: 10.1371/journal.pone.0127398] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Accepted: 04/14/2015] [Indexed: 12/19/2022] Open
Abstract
Burkholderia pseudomallei primary diagnostic cultures demonstrate colony morphology variation associated with expression of virulence and adaptation proteins. This study aims to examine the ability of B. pseudomallei colony variants (wild type [WT] and small colony variant [SCV]) to survive and replicate intracellularly in A549 cells and to identify the alterations in the protein expression of these variants, post-exposure to the A549 cells. Intracellular survival and cytotoxicity assays were performed followed by proteomics analysis using two-dimensional gel electrophoresis. B. pseudomallei SCV survive longer than the WT. During post-exposure, among 259 and 260 protein spots of SCV and WT, respectively, 19 were differentially expressed. Among SCV post-exposure up-regulated proteins, glyceraldehyde 3-phosphate dehydrogenase, fructose-bisphosphate aldolase (CbbA) and betaine aldehyde dehydrogenase were associated with adhesion and virulence. Among the down-regulated proteins, enolase (Eno) is implicated in adhesion and virulence. Additionally, post-exposure expression profiles of both variants were compared with pre-exposure. In WT pre- vs post-exposure, 36 proteins were differentially expressed. Of the up-regulated proteins, translocator protein, Eno, nucleoside diphosphate kinase (Ndk), ferritin Dps-family DNA binding protein and peptidyl-prolyl cis-trans isomerase B were implicated in invasion and virulence. In SCV pre- vs post-exposure, 27 proteins were differentially expressed. Among the up-regulated proteins, flagellin, Eno, CbbA, Ndk and phenylacetate-coenzyme A ligase have similarly been implicated in adhesion, invasion. Protein profiles differences post-exposure provide insights into association between morphotypic and phenotypic characteristics of colony variants, strengthening the role of B. pseudomallei morphotypes in pathogenesis of melioidosis.
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Affiliation(s)
- Anis Rageh Al-Maleki
- Tropical Infectious Disease Research and Education Center (TIDREC), Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Vanitha Mariappan
- Tropical Infectious Disease Research and Education Center (TIDREC), Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Kumutha Malar Vellasamy
- Tropical Infectious Disease Research and Education Center (TIDREC), Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Sun Tee Tay
- Tropical Infectious Disease Research and Education Center (TIDREC), Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Jamuna Vadivelu
- Tropical Infectious Disease Research and Education Center (TIDREC), Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
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18
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Bertuccini L, Costanzo M, Iosi F, Tinari A, Terruzzi F, Stronati L, Aloi M, Cucchiara S, Superti F. Lactoferrin prevents invasion and inflammatory response following E. coli strain LF82 infection in experimental model of Crohn's disease. Dig Liver Dis 2014; 46:496-504. [PMID: 24631031 DOI: 10.1016/j.dld.2014.02.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Revised: 01/23/2014] [Accepted: 02/09/2014] [Indexed: 02/07/2023]
Abstract
BACKGROUND Crohn's disease is a multifactorial disease in which an aberrant immune response to commensal intestinal microbiota leads to chronic inflammation. The small intestine of patients with Crohn's disease is colonized by a group of adherent-invasive Escherichia coli strongly able to adhere and invade intestinal epithelial cells lactoferrin is an iron-binding glycoprotein known to have anti-bacterial and anti-inflammatory activities. AIMS We explore the ability of bovine lactoferrin to modulate the interactions between the adherent-invasive E. coli strain LF82 and intestinal epithelial cells as well as the inflammatory response. METHODS Bacterial adhesion and invasion assays were used to assess the antimicrobial activity of lactoferrin. Electron microscopy was used to characterize bacteria-cell interactions. The mRNA expression of pro-inflammatory cytokines was measured both in cultured cells and in biopsies taken from intestine of patients affected by Crohn's disease. RESULTS Lactoferrin inhibited bacterial invasion through minimally affecting adhesion. This divergence was due to a mannose-dependent lactoferrin binding to the bacterial type 1 pili and consequent bacterial aggregation on the intestinal epithelial cell surface. Expression of pro-inflammatory cytokines, such as TNF-alpha, IL-8, and IL-6, was markedly inhibited by lactoferrin both in cultured and Crohn-derived intestinal cells. CONCLUSIONS Bovine lactoferrin might function via an antibacterial and/or anti-inflammatory mechanism in the treatment of Crohn's disease.
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Affiliation(s)
- Lucia Bertuccini
- Department of Technology and Health, Istituto Superiore di Sanità, Viale Regina Elena, 299, 00161 Rome, Italy
| | - Manuela Costanzo
- ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Department of Radiobiology and Human Health, Via Anguillarese 301, 00123 Rome, Italy
| | - Francesca Iosi
- Department of Technology and Health, Istituto Superiore di Sanità, Viale Regina Elena, 299, 00161 Rome, Italy
| | - Antonella Tinari
- Department of Technology and Health, Istituto Superiore di Sanità, Viale Regina Elena, 299, 00161 Rome, Italy
| | - Fabio Terruzzi
- Giellepi S.p.A., Via G. Verdi, 41/Q, 20831 Seregno (MB), Italy
| | - Laura Stronati
- ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Department of Radiobiology and Human Health, Via Anguillarese 301, 00123 Rome, Italy
| | - Marina Aloi
- Department of Pediatrics, Sapienza University of Rome, Viale Regina Elena, 324, 00161 Rome, Italy
| | - Salvatore Cucchiara
- Department of Pediatrics, Sapienza University of Rome, Viale Regina Elena, 324, 00161 Rome, Italy
| | - Fabiana Superti
- Department of Technology and Health, Istituto Superiore di Sanità, Viale Regina Elena, 299, 00161 Rome, Italy.
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19
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Lactoferrin differently modulates the inflammatory response in epithelial models mimicking human inflammatory and infectious diseases. Biometals 2014; 27:843-56. [DOI: 10.1007/s10534-014-9740-9] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2014] [Accepted: 04/13/2014] [Indexed: 02/08/2023]
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20
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Larrosa M, Truchado P, Espín JC, Tomás-Barberán FA, Allende A, García-Conesa MT. Evaluation of Pseudomonas aeruginosa (PAO1) adhesion to human alveolar epithelial cells A549 using SYTO 9 dye. Mol Cell Probes 2012; 26:121-6. [PMID: 22464926 DOI: 10.1016/j.mcp.2012.03.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2011] [Revised: 03/02/2012] [Accepted: 03/02/2012] [Indexed: 11/18/2022]
Abstract
Pseudomonas aeruginosa is an aerobic Gram-negative bacterium characterized by a natural resistance to several antibiotics. It is a major cause of nosocomial infections in patients with compromised host defence mechanisms mainly related to the respiratory tract. P. aeruginosa infection first step is the adhesion of the bacteria to the host cells and thus, the development of techniques that can easily assess adhesion of bacteria strains and of bacteria isolated from biological samples is fundamental. The aim of our work was to develop a fast and effective method to evaluate the adhesion of P. aeruginosa to bronchial epithelial cells. To meet our goal we optimized a staining protocol using the vital dye SYTO 9 and P. aeruginosa PAO1. We established the appropriate dying conditions as well as the stability of the stained bacteria. Adhesion was first measured using the traditional plate counting method and then, adhesion values were compared to those obtained using a fluorescence microplate reader and epifluorescence microscopy. Our results show that the use of SYTO 9 does not interfere with the bacteria viability, bacteria cell growth, and adhesion of P. aeruginosa to A549 epithelial cells. Both the fluorescence microplate reader and the epifluorescence microscopy gave similar results to those attained with the plate counting method, however, the epifluorescence microscopy also allowed for simultaneous discrimination of damaging effects on the human cells. Overall, our data indicate that the use of SYTO 9 combined with a fluorescence microplate reader or an epifluorescence microscope provides a rapid method to evaluate the adhesion of P. aeruginosa to human epithelial cells. However, to show unequivocally that a specific drug or compound has a truly inhibitory effect on the bacterial adhesion without affecting the number of human cells, the epifluorescence microscopy is recommended.
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Affiliation(s)
- Mar Larrosa
- Research Group on Quality, Safety and Bioactivity of Plant Foods, Department of Food Science and Technology, CEBAS-CSIC, P.O. Box 164, 30100 Campus de Espinardo, Murcia, Spain.
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21
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Valenti P, Catizone A, Pantanella F, Frioni A, Natalizi T, Tendini M, Berlutti F. Lactoferrin Decreases Inflammatory Response by Cystic Fibrosis Bronchial Cells Invaded with Burkholderia Cenocepacia Iron-Modulated Biofilm. Int J Immunopathol Pharmacol 2011; 24:1057-68. [DOI: 10.1177/039463201102400423] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
In cystic fibrosis (CF) high iron concentration in airway secretion plays a pivotal role in bacterial multiplication and biofilm formation as well as in inflammatory response. Burkholderia cenocepacia, an opportunistic facultative pathogen responsible for chronic lung infections and cepacia syndrome, recurrently infects CF patients. Lactoferrin (Lf), an iron binding multifunctional glycoprotein synthesized by exocrine glands and neutrophils, has been found at higher concentration in the airway secretions of infected CF patients than in healthy subjects. Here the influence of milk derivative bovine lactoferrin (bLf), an emerging important regulator of iron and inflammatory homeostasis, on invasiveness of B. cenocepacia iron-modulated biofilm, as well as on inflammatory response by infected CF bronchial (IB3-1) cells, is reported, bLf did not significantly affect invasion efficacy by biofilm-forming B. cenocepacia clinical strains. Conversely, the addition of bLf to cell monolayers during infection significantly decreased the pro-inflammatory Interleukin (IL)-1β and increased the antiinflammatory IL-11 expression compared to that observed in cells infected in the absence of bLf. The bLf ability to modulate genes expressed following B. cenocepacia infection seems related to its localization to the nucleus of infected IB3-1 cells. These results provide evidence for a role of bLf in the protection of infected CF cells from inflammation-related damage, thus extending the therapeutic potential of this multifunctional natural protein.
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Affiliation(s)
- P. Valenti
- Department of Public Health and Infectious Disease, Sapienza University of Rome, Rome
| | - A. Catizone
- Department of Anatomy, Histology, Forensic Medicine and Orthopaedics, Sapienza University of Rome, Rome, Italy
| | - F. Pantanella
- Department of Public Health and Infectious Disease, Sapienza University of Rome, Rome
| | - A. Frioni
- Department of Public Health and Infectious Disease, Sapienza University of Rome, Rome
| | - T. Natalizi
- Department of Public Health and Infectious Disease, Sapienza University of Rome, Rome
| | - M. Tendini
- Department of Public Health and Infectious Disease, Sapienza University of Rome, Rome
| | - F. Berlutti
- Department of Public Health and Infectious Disease, Sapienza University of Rome, Rome
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22
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Golshahi L, Lynch KH, Dennis JJ, Finlay WH. In vitro lung delivery of bacteriophages KS4-M and ΦKZ using dry powder inhalers for treatment of Burkholderia cepacia complex and Pseudomonas aeruginosa infections in cystic fibrosis. J Appl Microbiol 2010; 110:106-17. [PMID: 20875034 DOI: 10.1111/j.1365-2672.2010.04863.x] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
AIMS To determine the feasibility of formulating and aerosolizing powders containing bacteriophages KS4-M and ΦKZ for lung delivery and treatment of pulmonary Burkholderia cepacia complex and Pseudomonas aeruginosa infections. METHODS AND RESULTS Endotoxin-removed bacteriophages KS4-M and ΦKZ were lyophilized in lactose/lactoferrin 60 : 40 w/w matrix and deagglomerated in a mixer mill (without beads) to formulate respirable powders. The powders were then aerosolized using an Aerolizer(®) capsule inhaler. Mass median aerodynamic diameter (MMAD) of this inhalable aerosol was determined using Andersen cascade impactor at 60 l min(-1). Measured MMAD for both types of powders was 3·4 μm, and geometric standard deviation was 1·9-2·0. Viability of bacteriophages delivered distal to an idealized mouth-throat replica was determined from bioassays of samples collected on filters placed after the idealized replica. As a percentage of inhaler load, amount of powder delivered distal to the mouth-throat replica, which is a measure of lung delivery, was 33·7 ± 0·3% for KS4-M and 32·7 ± 0·9% for ΦKZ. Titres collected downstream of the mouth throat were (3·4 ± 2·5) × 10(6) PFU for KS4-M with an Aerolizer capsule load of (9·8 ± 4·8) × 10(6) and (1·9 ± 0·6) × 10(7) for ΦKZ with an Aerolizer capsule load of (6·5 ± 1·9) × 10(7). CONCLUSIONS Bacteriophages KS4-M and ΦKZ can be lyophilized without significant loss of viability in a lactose/lactoferrin 60 : 40 w/w matrix. The resulting powders can be aerosolized to deliver viable bacteriophages to the lungs. SIGNIFICANCE AND IMPACT OF THE STUDY Development of lactoferrin-based bacteriophage aerosol powders solidifies the ground for future research on developing novel formulations as an alternative to inhaled antibiotic therapy in patients with cystic fibrosis.
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Affiliation(s)
- L Golshahi
- University of Alberta, Edmonton, AB, Canada
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Ammendolia MG, Bertuccini L, Iosi F, Minelli F, Berlutti F, Valenti P, Superti F. Bovine lactoferrin interacts with cable pili of Burkholderia cenocepacia. Biometals 2010; 23:531-42. [DOI: 10.1007/s10534-010-9333-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2010] [Accepted: 03/25/2010] [Indexed: 12/01/2022]
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Castellani ML, Vecchiet J, Salini V, Conti P, Theoharides TC, Caraffa A, Antinolfi P, Teté S, Ciampoli C, Cuccurullo C, Cerulli G, Felaco M, Boscolo P. Stimulation of CCL2 (MCP-1) and CCL2 mRNA by substance P in LAD2 human mast cells. Transl Res 2009; 154:27-33. [PMID: 19524871 DOI: 10.1016/j.trsl.2009.03.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2008] [Revised: 03/22/2009] [Accepted: 03/23/2009] [Indexed: 12/16/2022]
Abstract
Chemokines are cytokines with chemotactic properties on inflammatory cells and other cell types. Chemokine (C-C motif) ligand 2 (CCL2), which is also called monocyte chemotactic protein 1 (MCP-1), is a potent chemotactic molecule that attracts lymphocytes, monocytes, mast cells, and memory T cells, but not neutrophils. CCL2/MCP-1 represents a link between the activation of monocytes, lymphocytes, basophils, mast cells, and eosinophils in inflammatory disorders, such as the late-phase allergic reaction. This C-C chemokine also plays a role in regulating Th-cell cytokine production and leukocyte trafficking. Laboratory of allergic diseases (LAD) cells is the first reported human mast cell line that closely resembles a primary culture of CD34+-derived human mast cells. These cells were cultured in vitro and treated with different concentrations of substance P (SP) for the production of CCL2/MCP-1. We used calcium ionophore as a positive control for stimulating transcription and translation of CCL2/MCP-1. The stimulation of SP on CCL2/MCP-1 was statistically significant (P < 0.05) compared with the control (untreated cells). In this study, we determined the expression and secretion of CCL2/MCP-1 from SP-activated LAD2 human mast cells in vitro. The levels of CCL2/MCP-1 from SP-activated LAD2 human mast cells were higher at 10 microM and at 18 h incubation compared with controls. This effect was also revealed on CCL2/MCP-1 messenger RNA (mRNA) expression, as determined by reverse transcriptase polymerase chain reaction (RT-PCR) analysis. Our data suggest that SP is an important neurotransmitter that can stimulate the chemokine CCL2, which plays a fundamental role in inflammation by recruiting inflammatory cells to specific cites.
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