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Morris A, Yau Y, Howell P, Parsek M, Hoffman L, Nguyen D, Rooney A, Coburn B, McDonald N, DiGiandomenico A, Wozniak D, Waters V. 570 Visualization of Pseudomonas aeruginosa biofilms in sputum of children with cystic fibrosis who fail eradication therapy. J Cyst Fibros 2022. [DOI: 10.1016/s1569-1993(22)01260-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Rupel K, Zupin L, Ottaviani G, Bertani I, Martinelli V, Porrelli D, Vodret S, Vuerich R, Passos da Silva D, Bussani R, Crovella S, Parsek M, Venturi V, Di Lenarda R, Biasotto M, Zacchigna S. Blue laser light inhibits biofilm formation in vitro and in vivo by inducing oxidative stress. NPJ Biofilms Microbiomes 2019; 5:29. [PMID: 31602310 PMCID: PMC6785554 DOI: 10.1038/s41522-019-0102-9] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 09/02/2019] [Indexed: 11/09/2022] Open
Abstract
Resolution of bacterial infections is often hampered by both resistance to conventional antibiotic therapy and hiding of bacterial cells inside biofilms, warranting the development of innovative therapeutic strategies. Here, we report the efficacy of blue laser light in eradicating Pseudomonas aeruginosa cells, grown in planktonic state, agar plates and mature biofilms, both in vitro and in vivo, with minimal toxicity to mammalian cells and tissues. Results obtained using knock-out mutants point to oxidative stress as a relevant mechanism by which blue laser light exerts its anti-microbial effect. Finally, the therapeutic potential is confirmed in a mouse model of skin wound infection. Collectively, these data set blue laser phototherapy as an innovative approach to inhibit bacterial growth and biofilm formation, and thus as a realistic treatment option for superinfected wounds.
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Affiliation(s)
- Katia Rupel
- 1Department of Medical, Surgical and Health Sciences, University of Trieste, 34127 Trieste, Italy
| | - Luisa Zupin
- 1Department of Medical, Surgical and Health Sciences, University of Trieste, 34127 Trieste, Italy
| | - Giulia Ottaviani
- 1Department of Medical, Surgical and Health Sciences, University of Trieste, 34127 Trieste, Italy
| | - Iris Bertani
- 2Bacteriology Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), 34149 Trieste, Italy
| | - Valentina Martinelli
- 3Cardiovascular Biology Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), 34149 Trieste, Italy
| | - Davide Porrelli
- 1Department of Medical, Surgical and Health Sciences, University of Trieste, 34127 Trieste, Italy
| | - Simone Vodret
- 3Cardiovascular Biology Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), 34149 Trieste, Italy
| | - Roman Vuerich
- 3Cardiovascular Biology Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), 34149 Trieste, Italy
| | | | - Rossana Bussani
- 1Department of Medical, Surgical and Health Sciences, University of Trieste, 34127 Trieste, Italy
| | - Sergio Crovella
- 1Department of Medical, Surgical and Health Sciences, University of Trieste, 34127 Trieste, Italy.,5Institute for Maternal and Child Health-IRCCS "Burlo Garofolo", 34137 Trieste, Italy
| | - Matthew Parsek
- 4Department of Microbiology, University of Washington, Seattle, WA 98195 USA
| | - Vittorio Venturi
- 2Bacteriology Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), 34149 Trieste, Italy
| | - Roberto Di Lenarda
- 1Department of Medical, Surgical and Health Sciences, University of Trieste, 34127 Trieste, Italy
| | - Matteo Biasotto
- 1Department of Medical, Surgical and Health Sciences, University of Trieste, 34127 Trieste, Italy
| | - Serena Zacchigna
- 1Department of Medical, Surgical and Health Sciences, University of Trieste, 34127 Trieste, Italy.,3Cardiovascular Biology Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), 34149 Trieste, Italy
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Simon TD, Schaffzin JK, Stevenson CB, Willebrand K, Parsek M, Hoffman LR. Cerebrospinal Fluid Shunt Infection: Emerging Paradigms in Pathogenesis that Affect Prevention and Treatment. J Pediatr 2019; 206:13-19. [PMID: 30528757 PMCID: PMC6389391 DOI: 10.1016/j.jpeds.2018.11.026] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 11/09/2018] [Accepted: 11/13/2018] [Indexed: 01/04/2023]
Affiliation(s)
- Tamara D. Simon
- Department of Pediatrics, University of Washington/Seattle Children’s Hospital, Seattle, Washington, United States,Center for Clinical and Translational Research, Seattle Children’s Research Institute, Seattle, Washington, United States
| | - Joshua K. Schaffzin
- Division of Infectious Diseases, Department of Pediatrics, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, United States
| | - Charles B. Stevenson
- Division of Pediatric Neurosurgery, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, United States
| | - Kathryn Willebrand
- Department of Microbiology, University of Washington, Seattle, Washington, United States
| | - Matthew Parsek
- Department of Microbiology, University of Washington, Seattle, Washington, United States
| | - Lucas R. Hoffman
- Department of Pediatrics, University of Washington/Seattle Children’s Hospital, Seattle, Washington, United States,Center for Clinical and Translational Research, Seattle Children’s Research Institute, Seattle, Washington, United States,Department of Microbiology, University of Washington, Seattle, Washington, United States,Center for Infection and Prematurity Research, Seattle Children’s Research Institute, Seattle, Washington, United States
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Alhede M, Bjarnsholt T, Jensen P, Parsek M, Høiby N, Rasmussen T, Givskov M. A transcriptome analysis of the in vitro response of Pseudomonas aeruginosa to polymorphonuclear leukocyte exposure. J Cyst Fibros 2008. [DOI: 10.1016/s1569-1993(08)60197-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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