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Kruis T, Menzel P, Schwarzer R, Wiesener S, Schoenrath F, Klefisch F, Stegemann M, Pfäfflin F. Outbreak of Pandoraea commovens Infections among Non-Cystic Fibrosis Intensive Care Patients, Germany, 2019-2021. Emerg Infect Dis 2023; 29:2229-2237. [PMID: 37877517 PMCID: PMC10617358 DOI: 10.3201/eid2911.230493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2023] Open
Abstract
Pandoraea spp. are gram-negative, nonfermenting rods mainly known to infect patients with cystic fibrosis (CF). Outbreaks have been reported from several CF centers. We report a Pandoraea spp. outbreak comprising 24 non-CF patients at a large university hospital and a neighboring heart center in Germany during July 2019-December 2021. Common features in the patients were critical illness, invasive ventilation, antimicrobial pretreatment, and preceding surgery. Complicated and relapsing clinical courses were observed in cases with intraabdominal infections but not those with lower respiratory tract infections. Genomic analysis of 15 isolates identified Pandoraea commovens as the genetically most similar species and confirmed the clonality of the outbreak strain, designated P. commovens strain LB-19-202-79. The strain exhibited resistance to most antimicrobial drugs except ampicillin/sulbactam, imipenem, and trimethoprim/sulfamethoxazole. Our findings suggest Pandoraea spp. can spread among non-CF patients and underscore that clinicians and microbiologists should be vigilant in detecting and assessing unusual pathogens.
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2
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Farfour E, Roux A, Sage E, Revillet H, Vasse M, Vallée A. Rarely Encountered Gram-Negative Rods and Lung Transplant Recipients: A Narrative Review. Microorganisms 2023; 11:1468. [PMID: 37374970 DOI: 10.3390/microorganisms11061468] [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: 04/25/2023] [Revised: 05/18/2023] [Accepted: 05/30/2023] [Indexed: 06/29/2023] Open
Abstract
The respiratory tract of lung transplant recipients (LTR) is likely to be colonized with non-fermentative Gram-negative rods. As a consequence of the improvements in molecular sequencing and taxonomy, an increasing number of bacterial species have been described. We performed a review of the literature of bacterial infections in LTR involving non-fermentative Gram-negative rods with exclusion of Pseudomonas aeruginosa, Stenotrophomonas maltophilia, Achromobacter spp. and Burkholderia spp. Overall, non-fermenting GNR were recovered from 17 LTR involving the following genera: Acetobacter, Bordetella, Chryseobacterium, Elizabethkinga, Inquilinus, and Pandoraea. We then discuss the issues raised by these bacteria, including detection and identification, antimicrobial resistance, pathogenesis, and cross-transmission.
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Affiliation(s)
- Eric Farfour
- Service de Biologie Clinique, Hôpital Foch, 92150 Suresnes, France
| | - Antoine Roux
- Service de Pneumologie et Transplantation Pulmonaire, Hôpital Foch, 92150 Suresnes, France
| | - Edouard Sage
- Service de Chirurgie Thoracique et Transplantation Pulmonaire, Hôpital Foch, 92150 Suresnes, France
| | - Hélène Revillet
- Service de Bactériologie-Hygiène Hospitalière, CHU de Toulouse, 31300 Toulouse, France
- Observatoire National Burkholderia cepacia, 31403 Toulouse, France
| | - Marc Vasse
- Service de Biologie Clinique, Hôpital Foch, 92150 Suresnes, France
- INSERM Hémostase Inflammation Thrombose HITH U1176, Université Paris-Saclay, 94276 Le Kremlin-Bicêtre, France
| | - Alexandre Vallée
- Service d'Epidémiologie-Data-Biostatistiques, Délégation à la Recherche Clinique et à l'Innovation, Hôpital Foch, 92150 Suresnes, France
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3
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Ma Z, Zou X, Lin J, Zhang C, Xiao S. Sepsis Due to Pandoraea sputorum Infection After Multiple Trauma in a Non-Cystic Fibrosis Patient: A Case Report from Southeast China. Infect Drug Resist 2022; Volume 15:7043-7052. [DOI: 10.2147/idr.s388520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2023] Open
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4
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Gao RF, Wang Y, Wang Y, Wang ZW, Zhang GM. Genome insights from the identification of a novel Pandoraea sputorum isolate and its characteristics. PLoS One 2022; 17:e0272435. [PMID: 35930552 PMCID: PMC9355198 DOI: 10.1371/journal.pone.0272435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 07/19/2022] [Indexed: 11/18/2022] Open
Abstract
In this study, we sequenced a bacteria isolate Pandoraea sp. 892iso isolated from a Phytophthora rubi strain which is an important plant pathogenic oomycete, identified through genome and combined the data with existing genomic data from other 28 the genus of Pandoraea species. Next, we conducted a comparative genomic analysis of the genome structure, evolutionary relationships, and pathogenic characteristics of Pandoraea species. Our results identified Pandoraea sp. 892iso as Pandoraea sputorum at both the genome and gene levels. At the genome level, we carried out phylogenetic analysis of single-copy, gene co-linearity, ANI (average nucleotide identity) and AAI (average amino acid identity) indices, rpoB similarity, MLSA phylogenetic analysis, and genome-to-genome distance calculator calculations to identify the relationship between Pandoraea sp. 892iso and P. sputorum. At the gene level, the quorum sensing genes ppnI and ppnR and the OXA-159 gene were assessed. It is speculated that Pandoraea sp. 892iso is the endosymbiont of the Oomycetes strain of Phytophthora rubi.
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Affiliation(s)
- Rui-Fang Gao
- Animal & Plant Inspection and Quarantine Technology Center of Shenzhen Customs District P.R. China, Shenzhen, China
- Shenzhen Key Laboratory for Research & Development on Detection Technology of Alien Pests, Shenzhen Academy of Inspection and Quarantine, Shenzhen, China
- * E-mail:
| | - Ying Wang
- Animal & Plant Inspection and Quarantine Technology Center of Shenzhen Customs District P.R. China, Shenzhen, China
- Shenzhen Key Laboratory for Research & Development on Detection Technology of Alien Pests, Shenzhen Academy of Inspection and Quarantine, Shenzhen, China
| | - Ying Wang
- Animal & Plant Inspection and Quarantine Technology Center of Shenzhen Customs District P.R. China, Shenzhen, China
- Shenzhen Key Laboratory for Research & Development on Detection Technology of Alien Pests, Shenzhen Academy of Inspection and Quarantine, Shenzhen, China
| | | | - Gui-Ming Zhang
- Animal & Plant Inspection and Quarantine Technology Center of Shenzhen Customs District P.R. China, Shenzhen, China
- Shenzhen Key Laboratory for Research & Development on Detection Technology of Alien Pests, Shenzhen Academy of Inspection and Quarantine, Shenzhen, China
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5
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Green HD, Jones AM. Managing Pulmonary Infection in Adults With Cystic Fibrosis: Adult Cystic Fibrosis Series. Chest 2022; 162:66-75. [PMID: 35167860 DOI: 10.1016/j.chest.2022.02.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 02/04/2022] [Accepted: 02/04/2022] [Indexed: 12/17/2022] Open
Abstract
Cystic fibrosis (CF) is characterized by chronic airway infection and progressive respiratory decline. Historically, a narrow spectrum of bacterial pathogens was believed to comprise the bulk of respiratory infections in CF, with Haemophilus influenzae and Staphylococcus aureus dominating childhood infections, and Pseudomonas aeruginosa or, less commonly, a member of the Burkholderia cepacia complex becoming the dominant infecting organism in adulthood. Today, the landscape is changing for airway infection in CF. The prevalence of "less typical" gram-negative bacterial infections are rising due to a number of factors: the CF population is aging; new therapies are being introduced; antibiotic usage is increasing; diagnostic tests are evolving; and taxonomic changes are being made as new bacterial species are being discovered. Less is known about the clinical relevance and evidence for treatment strategies for many of the other lower prevalence organisms that are encountered in CF. The aim of this article was to discuss the current evidence and recommended strategies for treating airway infection in CF, focusing on bacterial infections.
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Affiliation(s)
- Heather D Green
- Manchester Adult Cystic Fibrosis Centre, Manchester University NHS Foundation Trust, Manchester, England
| | - Andrew M Jones
- Manchester Adult Cystic Fibrosis Centre, Manchester University NHS Foundation Trust, Manchester, England; Division of Infection, Immunity and Respiratory Medicine, University of Manchester, Manchester, England.
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6
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O'Leary MK, Sundaram V, LiPuma JJ, Dörr T, Westblade LF, Alabi CA. Mechanism of Action and Resistance Evasion of an Antimicrobial Oligomer against Multidrug-Resistant Gram-Negative Bacteria. ACS APPLIED BIO MATERIALS 2022; 5:1159-1168. [PMID: 35167257 DOI: 10.1021/acsabm.1c01217] [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] [Indexed: 11/28/2022]
Abstract
The last resort for treating multidrug-resistant (MDR) Pseudomonas aeruginosa and other MDR Gram-negative bacteria is a class of antibiotics called the polymyxins; however, polymyxin-resistant isolates have emerged. In response, antimicrobial peptides (AMPs) and their synthetic mimetics have been investigated as alternative therapeutic options. Oligothioetheramides (oligoTEAs) are a class of synthetic, sequence-defined oligomers composed of N-allylacrylamide monomers and an abiotic dithiol backbone that is resistant to serum degradation. Characteristic of other AMP mimetics, the precise balance between charge and hydrophobicity has afforded cationic oligoTEAs potent antimicrobial activity, particularly for the compound BDT-4G, which consists of a 1,4-butanedithiol backbone and guanidine pendant groups, the latter of which provides a cationic charge at physiological pH. However, the activity and mechanism of cationic oligoTEAs against MDR Gram-negative isolates have yet to be fully investigated. Herein, we demonstrated the potent antimicrobial activity of BDT-4G against clinical isolates of P. aeruginosa with a range of susceptibility profiles, assessed the kinetics of bactericidal activity, and further elucidated its mechanism of action. Activity was also evaluated against a panel of polymyxin-resistant isolates, including intrinsically-resistant species. We demonstrate that BDT-4G can evade some of the mechanisms conferring resistance to polymyxin B and thus may have therapeutic potential.
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Affiliation(s)
- Meghan K O'Leary
- Robert F. Smith School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Vishal Sundaram
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - John J LiPuma
- Department of Pediatrics, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States
| | - Tobias Dörr
- Department of Microbiology, Cornell University, Ithaca, New York 14853, United States.,Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, New York 14853, United States.,Cornell Institute of Host-Microbe Interactions and Disease, Cornell University, Ithaca, New York 14853, United States
| | - Lars F Westblade
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, New York 10065, United States.,Division of Infectious Diseases, Department of Medicine, Weill Cornell Medicine, New York, New York 10065, United States
| | - Christopher A Alabi
- Robert F. Smith School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, New York 14853, United States
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7
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Dlewati MM, Aung PP, Park K, Rodriguez JA, Poon KK. Meropenem-Resistant Pandoraea Pneumonia in a Critically Ill Patient With COVID-19. Cureus 2021; 13:e19498. [PMID: 34912637 PMCID: PMC8666094 DOI: 10.7759/cureus.19498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/11/2021] [Indexed: 11/05/2022] Open
Abstract
Among patients infected with respiratory viruses, primary coinfection or secondary bacterial pneumonia is common in the severely ill. Pandoraea are multi-drug resistant gram-negative bacilli that have been newly classified in the past 20 years. We present the first reported case of Pandoraea co-infection with SARS-CoV-2 infection. A critically ill gentleman with COVID-19 in acute respiratory distress syndrome (ARDS) requiring mechanical ventilation developed ventilator-associated bacterial pneumonia (VAP). Initial sputum cultures grew Pandoraea species, with subsequent cultures growing P. aeruginosa, and K. pneumoniae as well. The patient failed to improve despite several antibiotic regimens including meropenem. Send-out reference laboratory testing of the Pandoraea species showed susceptibility to amikacin, ciprofloxacin, levofloxacin, imipenem, and minocycline, but resistance to aztreonam, cefepime, ceftazidime, and meropenem. The patient had deteriorated to multi-organ failure by the time minocycline was initiated, and his family had transitioned him into hospice care. Carbapenems are vital agents in the treatment of VAP. Pandoraea species are often resistant to meropenem but often retain in-vitro sensitivity to imipenem-cilastin. Although mainly isolated from respiratory specimens of patients with cystic fibrosis, cases of infection in non-cystic fibrosis patients have been increasingly recognized. The presentation of this case aims to increase awareness of the high drug resistance of this rising species and reduce delays in treatment, especially in COVID-19 coinfection.
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Affiliation(s)
| | - Pyi Phyo Aung
- Internal Medicine, Memorial Healthcare System, Hollywood, USA
| | - Kyeeun Park
- Internal Medicine, Memorial Healthcare System, Hollywood, USA
| | | | - Kenneth K Poon
- Infectious Disease, Memorial Healthcare System, Hollywood, USA
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8
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Patil NR, Tripathi M, Charaya K, Angrup A, Ahuja C, Mohindra S. Skull base osteomyelitis by Pandoraea apista: An unusual pathogen at unusual location - A case report. Surg Neurol Int 2021; 12:447. [PMID: 34621562 PMCID: PMC8492433 DOI: 10.25259/sni_472_2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 07/12/2021] [Indexed: 11/25/2022] Open
Abstract
Background: Pandoraea apista is predominantly recovered from the respiratory tract of patients with cystic fibrosis (CF). Authors report first case of central nervous system infection by P. apista in the form of skull base osteomyelitis. Case Description: A 67-year-old male presented with complaints of earache and hearing deficit for few months. The radiology was suggestive of skull base osteomyelitis and polypoidal soft tissue extending from the middle cranial fossa to the infratemporal fossa. The sample from the targeted area revealed P. apista on matrix-assisted laser desorption ionization-time-of-flight mass spectrometry. With adequate antibiotic therapy, there was clinicoradiologic improvement. P. apista is an infection exclusively seen in pulmonary infection in patients with CF. We identified its intracranial involvement in a patient for the 1st time in the literature. The serendipitous diagnosis needs evaluation on specific PCR and matrix-assisted laser desorption spectrometry. The treatment with antibiotics provides a definite cure. Conclusion: We report a rare opportunistic infection with central nervous system involvement which can be cured by accurate diagnosis and appropriate antibiotic treatment.
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Affiliation(s)
- Ninad Ramesh Patil
- Department of Neurosurgery, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Manjul Tripathi
- Department of Neurosurgery, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Kshitij Charaya
- Department of Otorhinolaryngology, Indus Hospital, Sahibzada Ajit Singh Nagar, Punjab, India
| | - Archana Angrup
- Department of Medical Microbiology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Chirag Ahuja
- Department of Neuroradiodiagnosis, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Sandeep Mohindra
- Department of Neurosurgery, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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9
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Bodendoerfer E, Personnic N, Mestres CA, Wilhelm MJ, Meyer L, Hasse B. Possible Prosthetic Valve Endocarditis by Pandoraea pnomenusa and Specific Virulence Mechanisms. Infect Drug Resist 2021; 14:1319-1324. [PMID: 33854344 PMCID: PMC8040088 DOI: 10.2147/idr.s301138] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 02/24/2021] [Indexed: 12/19/2022] Open
Abstract
Bacteremia by Pandoraea spp. has rarely been described before. We report the first case of a P. pnomenusa possible prosthetic valve endocarditis, according to the modified Duke criteria, in a 37-year old male injecting drug user suffering from recurrent endocarditis. Furthermore, we demonstrate biofilm formation by the P. pnomenusa isolates of this patient and investigate antibiotic resistance.
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Affiliation(s)
- Elias Bodendoerfer
- University of Zurich, Institute of Medical Microbiology, Zurich, Switzerland
| | - Nicolas Personnic
- University of Zurich, Institute of Medical Microbiology, Zurich, Switzerland
| | - Carlos A Mestres
- University Hospital Zurich, Clinic for Cardiac Surgery, Zurich, Switzerland
| | - Markus J Wilhelm
- University Hospital Zurich, Clinic for Cardiac Surgery, Zurich, Switzerland
| | - Lilly Meyer
- University Hospital Zurich, Department of Infectious Diseases and Hospital Epidemiology, Zurich, Switzerland
| | - Barbara Hasse
- University Hospital Zurich, Department of Infectious Diseases and Hospital Epidemiology, Zurich, Switzerland
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10
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Caffarelli C, Santamaria F, Santoro A, Procaccianti M, Castellano F, Nastro FF, Villani A, Bernasconi S, Corsello G. Best practices, challenges and innovations in pediatrics in 2019. Ital J Pediatr 2020; 46:176. [PMID: 33256810 PMCID: PMC7703504 DOI: 10.1186/s13052-020-00941-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 11/21/2020] [Indexed: 12/22/2022] Open
Abstract
This paper runs through key progresses in epidemiology, pathomechanisms and therapy of various diseases in children that were issued in the Italian Journal of Pediatrics at the end of last year. Novel research and documents that explore areas such as allergy, critical care, endocrinology, gastroenterology, infectious diseases, neonatology, neurology, nutrition, and respiratory tract illnesses in children have been reported. These observations will help to control childhood illnesses.
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Affiliation(s)
- Carlo Caffarelli
- Clinica Pediatrica, Department of Medicine and Surgery, Azienda Ospedaliera-Universitaria, University of Parma, Via Gramsci 14, Parma, Italy.
| | - Francesca Santamaria
- Department of Translational Medical Sciences, Federico II University, Naples, Italy
| | - Angelica Santoro
- Clinica Pediatrica, Department of Medicine and Surgery, Azienda Ospedaliera-Universitaria, University of Parma, Via Gramsci 14, Parma, Italy
| | - Michela Procaccianti
- Clinica Pediatrica, Department of Medicine and Surgery, Azienda Ospedaliera-Universitaria, University of Parma, Via Gramsci 14, Parma, Italy
| | - Fabio Castellano
- Department of Translational Medical Sciences, Federico II University, Naples, Italy
| | | | - Alberto Villani
- UOC di Pediatria Generale e Malattie Infettive, Ospedale Pediatrico Bambino Gesù, Rome, Italy
| | | | - Giovanni Corsello
- Department of Sciences for Health Promotion and Mother and Child Care "G. D'Alessandro", University of Palermo, Palermo, Italy
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11
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Pither MD, McClean S, Silipo A, Molinaro A, Di Lorenzo F. A chronic strain of the cystic fibrosis pathogen Pandoraea pulmonicola expresses a heterogenous hypo-acylated lipid A. Glycoconj J 2020; 38:135-144. [PMID: 33048281 PMCID: PMC8052242 DOI: 10.1007/s10719-020-09954-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/16/2020] [Accepted: 10/07/2020] [Indexed: 11/03/2022]
Abstract
Pandoraea sp. is an emerging Gram-negative pathogen in cystic fibrosis causing severe and persistent inflammation and damage of the lungs. The molecular mechanisms underlying the high pathogenicity of Pandoraea species are still largely unknown. As Gram-negatives, Pandoraea sp. express lipopolysaccharides (LPS) whose recognition by the host immune system triggers an inflammatory response aimed at the bacterial eradication from the infected tissues. The degree of the inflammatory response strongly relies on the fine structure of the LPS and, in particular, of its glycolipid moiety, i.e. the lipid A. Here we report the structure of the lipid A isolated from the LPS of a chronic strain of P. pulmonicola (RL 8228), one of the most virulent identified so far among the Pandoraea species. Our data demonstrated that the examined chronic strain produces a smooth-type LPS with a complex mixture of hypoacylated lipid A species displaying, among other uncommon characteristics, the 2-hydroxylation of some of the acyl chains and the substitution by an additional glucosamine on one or both the phosphate groups.
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Affiliation(s)
- Molly D Pither
- Department of Chemical Sciences, University of Naples Federico II, via Cinthia 4, Naples, 80126, Italy
| | - Siobhán McClean
- Centre of Microbial Host Interactions, Institute of Technology Tallaght, Dublin, 24, Ireland.,School of Biomolecular and Biomedical Sciences, University College Dublin, Belfield, Dublin, 4, Ireland
| | - Alba Silipo
- Department of Chemical Sciences, University of Naples Federico II, via Cinthia 4, Naples, 80126, Italy
| | - Antonio Molinaro
- Department of Chemical Sciences, University of Naples Federico II, via Cinthia 4, Naples, 80126, Italy
| | - Flaviana Di Lorenzo
- Department of Chemical Sciences, University of Naples Federico II, via Cinthia 4, Naples, 80126, Italy.
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12
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Abstract
Pandoraea fibrosis is a newly identified Gram-negative bacterial species that was isolated from the respiratory tract of an Australian cystic fibrosis patient. The complete assembled genome sequences of two consecutive isolates (second isolate collected 11 months after antibiotic treatment) from the same individual are presented here.
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13
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Xiao X, Tian H, Cheng X, Li G, Zhou J, Peng Z, Li Y. Pandoraea sputorum Bacteremia In A Patient Who Had Undergone Allogeneic Liver Transplantation Plus Immunosuppressive Therapy: A Case Report. Infect Drug Resist 2019; 12:3359-3364. [PMID: 31695454 PMCID: PMC6821047 DOI: 10.2147/idr.s227643] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Accepted: 10/12/2019] [Indexed: 01/01/2023] Open
Abstract
Pandoraea sputorum (P. sputorum), an emerging pathogen, is able to trigger a pronounced pro-inflammatory response that results in lung dysfunction in cystic fibrosis (CF) patients. All previous P. sputorum isolates have been obtained from the respiratory samples of CF patients, with no reported cases of P. sputorum bacteremia. For the first time, we report P. sputorum isolates recovered twice from the blood cultures of a patient with liver cancer who had undergone allogeneic liver transplantation. These isolates were successfully identified by combining mass spectrometry and molecular techniques based on 16S rRNA sequencing methods. At the onset of the P. sputorum bacteremia, the patient’s peripheral T, B and NK cell counts were 181.68/μL, 59.57/μL and 70.66/μL, respectively. The serum procalcitonin level, C-reactive protein level and peripheral neutrophil granulocyte percentage were 0.56 ng/mL, 61.00 mg/L and 96.8%, respectively. We found these isolates to be susceptible to ciprofloxacin and piperacillin/tazobactam and to be intermediate to amikacin. Previous studies have found P. sputorum isolates to be resistant. All of the data combined showed that compromised immune function from allogeneic liver transplantation plus immunosuppressive therapy contributes to the occurrence of P. sputorum bacteremia. Furthermore, the P. sputorum isolates demonstrated characteristic resistance profiles.
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Affiliation(s)
- Xiao Xiao
- Department of Clinical Laboratory, Zhongnan Hospital of Wuhan University, Wuhan, People's Republic of China
| | - Hongpan Tian
- Department of Clinical Laboratory, Zhongnan Hospital of Wuhan University, Wuhan, People's Republic of China
| | - Xiaohuan Cheng
- Department of Clinical Laboratory, Zhongnan Hospital of Wuhan University, Wuhan, People's Republic of China
| | - Guoming Li
- Health Inspection and Testing Institute, Hubei Provincial Center for Disease Control and Prevention, Wuhan, People's Republic of China
| | - Junying Zhou
- Department of Clinical Laboratory, Zhongnan Hospital of Wuhan University, Wuhan, People's Republic of China
| | - Zhiyong Peng
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, People's Republic of China
| | - Yirong Li
- Department of Clinical Laboratory, Zhongnan Hospital of Wuhan University, Wuhan, People's Republic of China
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14
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Lin C, Luo N, Xu Q, Zhang J, Cai M, Zheng G, Yang P. Pneumonia due to Pandoraea Apista after evacuation of traumatic intracranial hematomas:a case report and literature review. BMC Infect Dis 2019; 19:869. [PMID: 31640582 PMCID: PMC6805617 DOI: 10.1186/s12879-019-4420-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 08/28/2019] [Indexed: 11/21/2022] Open
Abstract
Background Pandoraea species is a newly described genus, which is multidrug resistant and difficult to identify. Clinical isolates are mostly cultured from cystic fibrosis (CF) patients. CF is a rare disease in China, which makes Pandoraea a total stranger to Chinese physicians. Pandoraea genus is reported as an emerging pathogen in CF patients in most cases. However, there are few pieces of evidence that confirm Pandoraea can be more virulent in non-CF patients. The pathogenicity of Pandoraea genus is poorly understood, as well as its treatment. The incidence of Pandoraea induced infection in non-CF patients may be underestimated and it’s important to identify and understand these organisms. Case presentation We report a 44-years-old man who suffered from pneumonia and died eventually. Before his condition deteriorated, a Gram-negative bacilli was cultured from his sputum and identified as Pandoraea Apista by matrix-assisted laser desorption ionization–time-of-flight mass spectrometry (MALDI-TOF MS). Conclusion Pandoraea spp. is an emerging opportunistic pathogen. The incidences of Pandoraea related infection in non-CF patients may be underestimated due to the difficulty of identification. All strains of Pandoraea show multi-drug resistance and highly variable susceptibility. To better treatment, species-level identification and antibiotic susceptibility test are necessary.
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Affiliation(s)
- Chuanzhong Lin
- Department of Pharmacy, Huadu District People's Hospital of Guangzhou, Southern Medical University, Guangzhou, China.,Department of Pharmacy, The First Affiliated Hospital of Medicine School, Zhejiang University, Hangzhou, China
| | - Ning Luo
- Department of Pharmacy, Huadu District People's Hospital of Guangzhou, Southern Medical University, Guangzhou, China
| | - Qiang Xu
- Department of Pharmacy, The First Affiliated Hospital of Medicine School, Zhejiang University, Hangzhou, China
| | - Jianjun Zhang
- Department of Pharmacy, Zhejiang provincial hospital of TCM, Hangzhou, China
| | - Mengting Cai
- Department of Pharmacy, Meizhou People's Hospital, Meizhou, China
| | - Guanhao Zheng
- Department of Pharmacy, Shenzhen Hospital of Southern Medical University, Shenzhen, China
| | - Ping Yang
- Department of Pharmacy, The First Affiliated Hospital of Medicine School, Zhejiang University, Hangzhou, China.
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15
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Tabatabaei M, Dastbarsar M, Moslehi MA. Isolation and identification of Pandoraea spp. From bronchoalveolar lavage of cystic fibrosis patients in Iran. Ital J Pediatr 2019; 45:118. [PMID: 31477148 PMCID: PMC6720371 DOI: 10.1186/s13052-019-0687-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Accepted: 07/23/2019] [Indexed: 01/17/2023] Open
Abstract
Background Pandoraea species are gram negative, motile, non-spore forming, rod shaped and oxidase positive, obligate aerobes bacteria, and have one polar flagellum. Most of Pandoraea species are associated with lung infections in cystic fibrosis patients. Cystic fibrosis is the most prevalent autosomal recessive hereditary disease in the world that affects various organs of the body. The main important cause of death in these patients is lung involvement. This study was conducted to isolate and identify Pandoraea bacterium from bronchoalveolar lavage and sputum samples of cystic fibrosis patients in Shiraz, Iran. Methods In this research 31 samples of bronchoalveolar lavage and sputum were examined by culture and PCR method. Then confirmed isolates were evaluated for susceptibility to different antibiotics and ability to produce biofilm. Results The results of this study after cultivation, purification and DNA extraction led to the isolation of 4 Pandoraea bacterium by PCR using specific primers. Antibiotic susceptibility test were indicated all isolates were resistant to gentamicin, amikacin and imipenem and susceptible to ciprofloxacin, trimethoprim-sulfumethoxazole, piperacillin and tetracycline. Ability to create biofilm was indicated by some of Pandoraea isolates. According to findings of this study, ability to synthesis biofilm by Pandoraea isolates and resistance to some antibiotics are very important. Conclusions Our study notes the role of P. pnomenusa as an emerging pathogen that can cause chronic lung colonization in CF patients. Identification tools need to be accurate and must be based on molecular techniques. Also our findings should raise awareness about antibiotic resistance in cystic fibrosis patients in Iran and ability of including bacterial agents to produce biofilm is an alarm for public health. Thus clinicians should exercise caution about finding of clinical relevance of this pathogen to the infection and prescribing antibiotics, especially in cases of children infections.
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Kenna DTD, Coward A, Perry C, Pike R, Schaefer U, Turton J, Green H, Jones AM, Bright-Thomas RJ, Burns P, Narayan O, Wilkinson S, Turton JF. Investigation of a Pandoraea apista cluster common to adult and paediatric cystic fibrosis patients attending two hospitals in the same city. J Med Microbiol 2019; 68:1081-1095. [DOI: 10.1099/jmm.0.001010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Affiliation(s)
- Dervla T. D. Kenna
- National Infection Service, Public Health England, 61 Colindale Avenue, London NW9 5EQ, UK
| | - Amy Coward
- National Infection Service, Public Health England, 61 Colindale Avenue, London NW9 5EQ, UK
| | - Claire Perry
- National Infection Service, Public Health England, 61 Colindale Avenue, London NW9 5EQ, UK
| | - Rachel Pike
- National Infection Service, Public Health England, 61 Colindale Avenue, London NW9 5EQ, UK
| | - Ulf Schaefer
- National Infection Service, Public Health England, 61 Colindale Avenue, London NW9 5EQ, UK
| | | | - Heather Green
- Manchester Adult Cystic Fibrosis Centre, Wythenshawe Hospital, Manchester University Hospitals NHS Foundation Trust, Southmoor Road, Wythenshawe, Manchester M23 9LT, UK
| | - Andrew M. Jones
- Manchester Adult Cystic Fibrosis Centre, Wythenshawe Hospital, Manchester University Hospitals NHS Foundation Trust, Southmoor Road, Wythenshawe, Manchester M23 9LT, UK
| | - Rowland J. Bright-Thomas
- Manchester Adult Cystic Fibrosis Centre, Wythenshawe Hospital, Manchester University Hospitals NHS Foundation Trust, Southmoor Road, Wythenshawe, Manchester M23 9LT, UK
| | - Phillipa Burns
- Royal Manchester Children’s Hospital, Manchester M13 9WL, UK
| | - Omendra Narayan
- Royal Manchester Children’s Hospital, Manchester M13 9WL, UK
| | | | - Jane F. Turton
- National Infection Service, Public Health England, 61 Colindale Avenue, London NW9 5EQ, UK
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17
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Devanga Ragupathi NK, Veeraraghavan B. Accurate identification and epidemiological characterization of Burkholderia cepacia complex: an update. Ann Clin Microbiol Antimicrob 2019; 18:7. [PMID: 30717798 PMCID: PMC6360774 DOI: 10.1186/s12941-019-0306-0] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Accepted: 01/25/2019] [Indexed: 12/16/2022] Open
Abstract
Bacteria belonging to the Burkholderia cepacia complex (Bcc) are among the most important pathogens isolated from cystic fibrosis (CF) patients and in hospital acquired infections (HAI). Accurate identification of Bcc is questionable by conventional biochemical methods. Clonal typing of Burkholderia is also limited due to the problem with identification. Phenotypic identification methods such as VITEK2, protein signature identification methods like VITEK MS, Bruker Biotyper, and molecular targets such as 16S rRNA, recA, hisA and rpsU were reported with varying level of discrimination to identify Bcc. rpsU and/or 16S rRNA sequencing, VITEK2, VITEK MS and Bruker Biotyper could discriminate between Burkholderia spp. and non-Burkholderia spp. Whereas, Bcc complex level identification can be given by VITEK MS, Bruker Biotyper, and 16S rRNA/rpsU/recA/hisA sequencing. For species level identification within Bcc hisA or recA sequencing are reliable. Identification of Bcc is indispensable in CF patients and HAI to ensure appropriate antimicrobial therapy.
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Affiliation(s)
| | - Balaji Veeraraghavan
- Department of Clinical Microbiology, Christian Medical College, Vellore, Tamil Nadu, 632004, India.
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18
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19
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Cullen L, O'Connor A, McCormack S, Owens RA, Holt GS, Collins C, Callaghan M, Doyle S, Smith D, Schaffer K, Fitzpatrick DA, McClean S. The involvement of the low-oxygen-activated locus of Burkholderia cenocepacia in adaptation during cystic fibrosis infection. Sci Rep 2018; 8:13386. [PMID: 30190507 PMCID: PMC6127331 DOI: 10.1038/s41598-018-31556-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Accepted: 08/20/2018] [Indexed: 12/30/2022] Open
Abstract
Chronic infection with opportunistic pathogens including Burkholderia cepacia complex (Bcc) is a hallmark of cystic fibrosis (CF). We investigated the adaptive mechanisms facilitating chronic lung infection in sequential Bcc isolates from two siblings with CF (P1 and P2), one of whom also experienced intermittent blood-stream infections (P2). We previously showed increased lung cell attachment with colonisation time in both P1 and P2. WGS analysis confirmed that the isolates are closely related. Twelve genes showed three or more mutations, suggesting these were genes under selection. Single nucleotide polymorphisms (SNVs) in 45 regulatory genes were also observed. Proteomic analysis showed that the abundance of 149 proteins increased over 61-months in sputum isolates, and both time- and source-related alterations in protein abundance between the second patient’s isolates. A consistent time-dependent increase in abundance of 19 proteins encoded by a low-oxygen-activated (lxa) locus was observed in both sets of isolates. Attachment was dramatically reduced in a B. cenocepacia K56-2Δlxa-locus deletion mutant, further indicating that it encodes protein(s) involved in host-cell attachment. Time-related changes in virulence in Galleria mellonella or motility were not observed. We conclude that the lxa-locus, associated with anoxic persistence in vitro, plays a role in host-cell attachment and adaptation to chronic colonization in the hypoxic niche of the CF lung.
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Affiliation(s)
- Louise Cullen
- Centre of Microbial Host Interactions, Institute of Technology Tallaght, Dublin, 24, Ireland
| | - Andrew O'Connor
- Centre of Microbial Host Interactions, Institute of Technology Tallaght, Dublin, 24, Ireland.,School of Biomolecular and Biomedical Sciences, University College Dublin, Belfield, Dublin, 4, Ireland
| | - Sarah McCormack
- School of Biomolecular and Biomedical Sciences, University College Dublin, Belfield, Dublin, 4, Ireland
| | - Rebecca A Owens
- Department of Biology, Maynooth University, Co. Kildare, Ireland
| | - Giles S Holt
- Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, England
| | - Cassandra Collins
- Centre of Microbial Host Interactions, Institute of Technology Tallaght, Dublin, 24, Ireland
| | - Máire Callaghan
- Centre of Microbial Host Interactions, Institute of Technology Tallaght, Dublin, 24, Ireland
| | - Sean Doyle
- Department of Biology, Maynooth University, Co. Kildare, Ireland
| | - Darren Smith
- Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, England
| | - Kirsten Schaffer
- Department of Microbiology, St. Vincent's University Hospital, Elm Park, Dublin, Ireland
| | | | - Siobhán McClean
- Centre of Microbial Host Interactions, Institute of Technology Tallaght, Dublin, 24, Ireland. .,School of Biomolecular and Biomedical Sciences, University College Dublin, Belfield, Dublin, 4, Ireland.
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20
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Dupont C, Aujoulat F, Chiron R, Condom P, Jumas-Bilak E, Marchandin H. Highly Diversified Pandoraea pulmonicola Population during Chronic Colonization in Cystic Fibrosis. Front Microbiol 2017; 8:1892. [PMID: 29056926 PMCID: PMC5635052 DOI: 10.3389/fmicb.2017.01892] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 09/15/2017] [Indexed: 01/03/2023] Open
Abstract
Several environmental bacteria are considered as opportunistic pathogens in cystic fibrosis (CF) and are able to persistently colonize the CF respiratory tract (CFRT). Beside Pseudomonas aeruginosa and Burkholderia cepacia complex, Pandoraea spp. are defined as pathogenic. During chronic colonization, adaptive evolution and diversified population have been demonstrated, notably for P. aeruginosa. However, the persistence of Pandoraea in the CFRT remains largely unexplored. We studied genomic and phenotypic traits of Pandoraea pulmonicola isolates successively recovered from the airways of a single CF patient and relate the results to qualitative and quantitative evolution of other cultivable pathogens and to patient clinical status. A total of 31 isolates recovered from 18 sputum samples over a 7-year period in a single CF patient were studied. Genome dynamics was assessed by pulsed-field gel electrophoresis, ERIC-PCR fingerprinting and 16S rRNA gene PCR-temporal temperature gel electrophoresis. Phenotypic features included antimicrobial susceptibility, motility, biofilm production, and virulence in Caenorhabditis elegans model. Variability was observed for all the characteristics studied leading to highly diversified patterns (24 patterns) for the 31 clonally related isolates. Some of these modifications, mainly genomic events were concomitantly observed with CFRT microbiota composition shifts and with severe exacerbations. The diversity of P. pulmonicola population studied, observed for isolates recovered from successive samples but also within a sample suggested that existence of a diversified population may represent a patho-adaptive strategy for host persistence in the heterogeneous and fluctuating CFRT environment.
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Affiliation(s)
- Chloé Dupont
- Equipe Pathogènes Hydriques, Santé, Environnements, UMR 5569 Hydrosciences Montpellier, U.F.R des Sciences Pharmaceutiques et Biologiques and Université Montpellier, Montpellier, France
| | - Fabien Aujoulat
- Equipe Pathogènes Hydriques, Santé, Environnements, UMR 5569 Hydrosciences Montpellier, U.F.R des Sciences Pharmaceutiques et Biologiques and Université Montpellier, Montpellier, France
| | - Raphaël Chiron
- Centre de Ressources et de Compétences pour la Mucoviscidose, Hôpital Arnaud de Villeneuve, Centre Hospitalier Universitaire de Montpellier, Montpellier, France
| | - Pauline Condom
- Equipe Pathogènes Hydriques, Santé, Environnements, UMR 5569 Hydrosciences Montpellier, U.F.R des Sciences Pharmaceutiques et Biologiques and Université Montpellier, Montpellier, France
| | - Estelle Jumas-Bilak
- Equipe Pathogènes Hydriques, Santé, Environnements, UMR 5569 Hydrosciences Montpellier, U.F.R des Sciences Pharmaceutiques et Biologiques and Université Montpellier, Montpellier, France.,Laboratoire d'Hygiène Hospitalière, Hôpital Saint-Eloi, Centre Hospitalier Universitaire de Montpellier, Montpellier, France
| | - Hélène Marchandin
- Equipe Pathogènes Hydriques, Santé, Environnements, UMR 5569 Hydrosciences Montpellier, U.F.R des Sciences Pharmaceutiques et Biologiques and Université Montpellier, Montpellier, France.,Service de Microbiologie, Hôpital Carémeau, Centre Hospitalier Universitaire de Nîmes, Nîmes, France.,Laboratoire de Bactériologie, Hôpital Arnaud de Villeneuve, Centre Hospitalier Universitaire de Montpellier, Montpellier, France
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21
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Martina PF, Martínez M, Frada G, Alvarez F, Leguizamón L, Prieto C, Barrias C, Bettiol M, Lagares A, Bosch A, Ferreras J, Von Specht M. First time identification of Pandoraea sputorum from a patient with cystic fibrosis in Argentina: a case report. BMC Pulm Med 2017; 17:33. [PMID: 28173787 PMCID: PMC5297019 DOI: 10.1186/s12890-017-0373-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Accepted: 01/21/2017] [Indexed: 12/17/2022] Open
Abstract
Background Pandoraea species are considered emerging pathogens in the context of cystic fibrosis (CF) and are difficult to identify by conventional biochemical methods. These multidrug resistant bacteria remain poorly understood particularly in terms of natural resistance, mechanisms of acquired resistance and impact on the prognosis of the disease and the lung function. Among them, Pandoraea sputorum has been previously described in few cases of CF patients from Spain, Australia, France and United States, underlining the need of more clinical data for a better knowledge of its pathogenicity. This is the first report relating to P. sputorum in a CF patient in Argentina. Case presentation Pandoraea sputorum was identified in a nine-year-old cystic fibrosis patient from Argentina, after treatment failure during an exacerbation. The isolates were successfully identified by combining molecular techniques based on 16S rRNA sequencing and mass spectrometry (MS) methods, after reassessing previous misidentified isolates by conventional methods. After first isolation of P. sputorum, patient’s clinical condition worsened but later improved after a change in the treatment. Although isolates showed susceptibility to trimethoprim–sulfamethoxazole and imipenem, in our case, the antibiotic treatment failed in the eradication of P. sputorum. Conclusions All combined data showed a chronic colonization with P. sputorum associated to a deterioration of lung function. We noted that the presence of P. sputorum can be underestimated in CF patients and MALDI-TOF MS appears to be a promising means of accurate identification of Pandoraea species.
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Affiliation(s)
- Pablo F Martina
- Instituto de Biología Subtropical (IBS), CONICET-UNaM, Misiones, Argentina.,Centro de Investigación y Desarrollo en Fermentaciones Industriales (CINDEFI) - CONICET/UNLP, La Plata, Argentina.,Facultad de Ciencias Exactas, Químicas y Naturales, Universidad Nacional de Misiones, Posadas, Argentina
| | - Mónica Martínez
- Hospital Pediátrico Dr F. Barreyro, Posadas, Misiones, Argentina
| | - Guillermo Frada
- Hospital Pediátrico Dr F. Barreyro, Posadas, Misiones, Argentina
| | - Florencia Alvarez
- Instituto de Biotecnología y Biología Molecular (IBBM) - CONICET/UNLP, La Plata, Argentina
| | | | - Claudia Prieto
- Centro de Investigación y Desarrollo en Fermentaciones Industriales (CINDEFI) - CONICET/UNLP, La Plata, Argentina
| | - Carolina Barrias
- Hospital Pediátrico Dr F. Barreyro, Posadas, Misiones, Argentina
| | - Marisa Bettiol
- Hospital de Niños Sor María Ludovica, La Plata, Argentina
| | - Antonio Lagares
- Instituto de Biotecnología y Biología Molecular (IBBM) - CONICET/UNLP, La Plata, Argentina
| | - Alejandra Bosch
- Centro de Investigación y Desarrollo en Fermentaciones Industriales (CINDEFI) - CONICET/UNLP, La Plata, Argentina
| | - Julián Ferreras
- Instituto de Biología Subtropical (IBS), CONICET-UNaM, Misiones, Argentina. .,Facultad de Ciencias Exactas, Químicas y Naturales, Universidad Nacional de Misiones, Posadas, Argentina.
| | - Martha Von Specht
- Hospital Pediátrico Dr F. Barreyro, Posadas, Misiones, Argentina. .,Facultad de Ciencias Exactas, Químicas y Naturales, Universidad Nacional de Misiones, Posadas, Argentina.
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22
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Complete genome sequence of sequential Pandoraea apista isolates from the same cystic fibrosis patient supports a model of chronic colonization with in vivo strain evolution over time. Diagn Microbiol Infect Dis 2016; 87:1-6. [PMID: 28336132 DOI: 10.1016/j.diagmicrobio.2016.10.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 10/07/2016] [Accepted: 10/07/2016] [Indexed: 12/15/2022]
Abstract
Pandoraea apista in the family Burkholderiaceae is an emerging opportunistic pathogen in cystic fibrosis patients. Here, we describe a case from which 3 separate isolates of P. apista were recovered over a 1-year period. Using a combination of first-, second-, and third-generation sequencing technologies, we sequenced and de novo assembled the complete genomes of these 3 P. apista isolates. The genome of P. apista TF81F4 sequenced in this study was 5.58 Mb with a GC% of 62.3%, differed in sequence from other Pandoraea species by >20%, and included a number of previously undescribed loci. Three P. apista isolates cultured over a 12-month period were >99.999% identical by nucleotide, consistent with a model of chronic colonization by a single strain. Over time, the isolates accumulated point mutations, deletions, and insertions in a stepwise fashion, indicating in vivo strain evolution within the cystic fibrosis lung niche.
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23
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Ambrose M, Malley RC, Warren SJC, Beggs SA, Swallow OFE, McEwan B, Stock D, Roddam LF. Pandoraea pnomenusa Isolated from an Australian Patient with Cystic Fibrosis. Front Microbiol 2016; 7:692. [PMID: 27242717 PMCID: PMC4863129 DOI: 10.3389/fmicb.2016.00692] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 04/26/2016] [Indexed: 01/01/2023] Open
Abstract
Pandoraea species are considered as emerging pathogens in people with cystic fibrosis (CF). The contribution of these organisms to disease progression in CF patients is not fully understood owing in large measure to the scant reports in clinical and research literature describing their colonization of CF patients and their associated virulence determinants. In an effort to increase awareness and evidence for Pandoraea spp. infection in people with CF, and to stimulate research aimed at unraveling the pathogenic properties of Pandoraea, we report a case of a 26-year-old Australian (Tasmanian) man with CF who was chronically infected with Pandoraea pnomenusa for at least one year prior to his death from respiratory failure. In addition, we describe for the first time evidence suggesting that this bacterium is a facultative anaerobe and report on the availability of a whole genome sequence for this organism. To the best of our knowledge, this report represents only the second clinical case study of P. pnomenusa infection in the world, and the first in an Australian CF patient.
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Affiliation(s)
- Mark Ambrose
- School of Medicine, University of Tasmania Tasmania, TAS, Australia
| | - Roslyn C Malley
- School of Medicine, University of TasmaniaTasmania, TAS, Australia; Department of Pathology, Royal Hobart HospitalTasmania, TAS, Australia
| | - Sanchia J C Warren
- Department of Microbiology and Infectious Diseases, Royal Hobart Hospital Tasmania, TAS, Australia
| | - Sean A Beggs
- School of Medicine, University of TasmaniaTasmania, TAS, Australia; Department of Paediatrics, Royal Hobart HospitalTasmania, TAS, Australia
| | | | - Belinda McEwan
- Department of Microbiology and Infectious Diseases, Royal Hobart Hospital Tasmania, TAS, Australia
| | - David Stock
- Department of Respiratory and General Medicine, Royal Hobart Hospital Tasmania, TAS, Australia
| | - Louise F Roddam
- School of Medicine, University of Tasmania Tasmania, TAS, Australia
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24
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Lim YL, Ee R, Yong D, Yu CY, Ang GY, Tee KK, Yin WF, Chan KG. Complete Genome Sequence Analysis of Pandoraea pnomenusa Type Strain DSM 16536(T) Isolated from a Cystic Fibrosis Patient. Front Microbiol 2016; 7:109. [PMID: 26903988 PMCID: PMC4744841 DOI: 10.3389/fmicb.2016.00109] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Accepted: 01/21/2016] [Indexed: 01/07/2023] Open
Affiliation(s)
- Yan-Lue Lim
- Division of Genetics and Molecular Biology, Faculty of Science, Institute of Biological Sciences, University of Malaya Kuala Lumpur, Malaysia
| | - Robson Ee
- Division of Genetics and Molecular Biology, Faculty of Science, Institute of Biological Sciences, University of Malaya Kuala Lumpur, Malaysia
| | - Delicia Yong
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya Kuala Lumpur, Malaysia
| | - Choo-Yee Yu
- Division of Genetics and Molecular Biology, Faculty of Science, Institute of Biological Sciences, University of Malaya Kuala Lumpur, Malaysia
| | - Geik-Yong Ang
- Division of Genetics and Molecular Biology, Faculty of Science, Institute of Biological Sciences, University of Malaya Kuala Lumpur, Malaysia
| | - Kok-Keng Tee
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya Kuala Lumpur, Malaysia
| | - Wai-Fong Yin
- Division of Genetics and Molecular Biology, Faculty of Science, Institute of Biological Sciences, University of Malaya Kuala Lumpur, Malaysia
| | - Kok-Gan Chan
- Division of Genetics and Molecular Biology, Faculty of Science, Institute of Biological Sciences, University of Malaya Kuala Lumpur, Malaysia
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Magalhães AP, Azevedo NF, Pereira MO, Lopes SP. The cystic fibrosis microbiome in an ecological perspective and its impact in antibiotic therapy. Appl Microbiol Biotechnol 2015; 100:1163-1181. [PMID: 26637419 DOI: 10.1007/s00253-015-7177-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Revised: 11/11/2015] [Accepted: 11/13/2015] [Indexed: 01/24/2023]
Abstract
The recent focus on the cystic fibrosis (CF) complex microbiome has led to the recognition that the microbes can interact between them and with the host immune system, affecting the disease progression and treatment routes. Although the main focus remains on the interactions between traditional pathogens, growing evidence supports the contribution and the role of emergent species. Understanding the mechanisms and the biological effects involved in polymicrobial interactions may be the key to improve effective therapies and also to define new strategies for disease control. This review focuses on the interactions between microbe-microbe and host-microbe, from an ecological point of view, discussing their impact on CF disease progression. There are increasing indications that these interactions impact the success of antimicrobial therapy. Consequently, a new approach where therapy is personalized to patients by taking into account their individual CF microbiome is suggested.
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Affiliation(s)
- Andreia P Magalhães
- CEB-Centre of Biological Engineering, LIBRO-Laboratório de Investigação em Biofilmes Rosário Oliveira, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - Nuno F Azevedo
- LEPABE-Laboratory for Process Engineering, Environment, Biotechnology and Energy, Department of Chemical Engineering, Faculty of Engineering, University of Porto, 4200-465, Porto, Portugal
| | - Maria O Pereira
- CEB-Centre of Biological Engineering, LIBRO-Laboratório de Investigação em Biofilmes Rosário Oliveira, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - Susana P Lopes
- CEB-Centre of Biological Engineering, LIBRO-Laboratório de Investigação em Biofilmes Rosário Oliveira, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal.
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Persistent Infection Because of Pandoraea sputorum in a Young Cystic Fibrosis Patient Resistant to Antimicrobial Treatment. Pediatr Infect Dis J 2015; 34:1135-7. [PMID: 26176630 DOI: 10.1097/inf.0000000000000843] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
We report the case of a 13-year-old boy with cystic fibrosis with a pulmonary exacerbation concomitant to the first isolation of Pandoraea sputorum. The imipenem and trimethoprim-sulfamethoxazole treatments failed, with persistence of the bacteria, bronchial congestion and a decline in lung function. Pandoraea sp. is rarely isolated, with only 10 cases reported in France in 2011.
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27
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Lim YL, Ee R, How KY, Lee SK, Yong D, Tee KK, Yin WF, Chan KG. Complete genome sequencing of Pandoraea pnomenusa RB38 and Molecular Characterization of Its N-acyl homoserine lactone synthase gene ppnI. PeerJ 2015; 3:e1225. [PMID: 26336650 PMCID: PMC4556143 DOI: 10.7717/peerj.1225] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2015] [Accepted: 08/11/2015] [Indexed: 01/05/2023] Open
Abstract
In this study, we sequenced the genome of Pandoraea pnomenusa RB38 using Pacific Biosciences RSII (PacBio) Single Molecule Real Time (SMRT) sequencing technology. A pair of cognate luxI/R homologs was identified where the luxI homolog, ppnI, was found adjacent to a luxR homolog, ppnR1. An additional orphan luxR homolog, ppnR2, was also discovered. Multiple sequence alignment and phylogenetic analysis revealed that ppnI is an N-acyl homoserine lactone (AHL) synthase gene that is distinct from those of the nearest phylogenetic neighbor viz. Burkholderia spp. High resolution tandem mass spectrometry (LC-MS/MS) analysis showed that Escherichia coli BL21 harboring ppnI produced a similar AHL profile (N-octanoylhomoserine lactone, C8-HSL) as P. pnomenusa RB38, the wild-type donor strain, confirming that PpnI directed the synthesis of AHL in P. pnomenusa RB38. To our knowledge, this is the first documentation of the luxI/R homologs of the genus Pandoraea.
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Affiliation(s)
- Yan-Lue Lim
- Division of Genetics and Molecular Biology, Faculty of Science, Institute of Biological Sciences, University of Malaya , Kuala Lumpur , Malaysia
| | - Robson Ee
- Division of Genetics and Molecular Biology, Faculty of Science, Institute of Biological Sciences, University of Malaya , Kuala Lumpur , Malaysia
| | - Kah-Yan How
- Division of Genetics and Molecular Biology, Faculty of Science, Institute of Biological Sciences, University of Malaya , Kuala Lumpur , Malaysia
| | - Siew-Kim Lee
- Division of Genetics and Molecular Biology, Faculty of Science, Institute of Biological Sciences, University of Malaya , Kuala Lumpur , Malaysia
| | - Delicia Yong
- Department of Medicine, Faculty of Medicine, University of Malaya , Kuala Lumpur , Malaysia
| | - Kok Keng Tee
- Department of Medicine, Faculty of Medicine, University of Malaya , Kuala Lumpur , Malaysia
| | - Wai-Fong Yin
- Division of Genetics and Molecular Biology, Faculty of Science, Institute of Biological Sciences, University of Malaya , Kuala Lumpur , Malaysia
| | - Kok-Gan Chan
- Division of Genetics and Molecular Biology, Faculty of Science, Institute of Biological Sciences, University of Malaya , Kuala Lumpur , Malaysia
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Almuzara M, Barberis C, Traglia G, Famiglietti A, Ramirez MS, Vay C. Evaluation of matrix-assisted laser desorption ionization-time-of-flight mass spectrometry for species identification of nonfermenting Gram-negative bacilli. J Microbiol Methods 2015; 112:24-7. [PMID: 25765149 DOI: 10.1016/j.mimet.2015.03.004] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Revised: 03/06/2015] [Accepted: 03/07/2015] [Indexed: 12/20/2022]
Abstract
Matrix-assisted laser desorption ionization-time-of-flight mass spectrometry (MALDI-TOF MS) to identify 396 Nonfermenting Gram-Negative Bacilli clinical isolates was evaluated in comparison with conventional phenotypic tests and/or molecular methods. MALDI-TOF MS identified to species level 256 isolates and to genus or complex level 112 isolates. It identified 29 genera including uncommon species.
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Affiliation(s)
- Marisa Almuzara
- Laboratorio de Bacteriología, Departamento de Bioquímica Clínica, Hospital de Clínicas José de San Martín, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina.
| | - Claudia Barberis
- Laboratorio de Bacteriología, Departamento de Bioquímica Clínica, Hospital de Clínicas José de San Martín, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
| | - Germán Traglia
- Instituto de Microbiología y Parasitología Médica (IMPaM, UBA-CONICET), Facultad de Medicina, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
| | - Angela Famiglietti
- Laboratorio de Bacteriología, Departamento de Bioquímica Clínica, Hospital de Clínicas José de San Martín, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
| | - Maria Soledad Ramirez
- Center for Applied Biotechnology Studies, Department of Biological Science, California State University Fullerton, Fullerton, CA, United States
| | - Carlos Vay
- Laboratorio de Bacteriología, Departamento de Bioquímica Clínica, Hospital de Clínicas José de San Martín, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
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29
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Genome Sequences of Two Pandoraea pnomenusa Isolates Recovered 11 Months Apart from a Cystic Fibrosis Patient. GENOME ANNOUNCEMENTS 2015; 3:3/1/e01389-14. [PMID: 25657265 PMCID: PMC4319598 DOI: 10.1128/genomea.01389-14] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pandoraea is an emerging respiratory pathogen capable of causing chronic lung infections in people with cystic fibrosis (CF), but the clinical significance of this infection is ambiguous. We have sequenced and annotated the genomes of two multidrug-resistant Pandoraea pnomenusa isolates recovered 11 months apart from the same CF patient.
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30
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Ee R, Lim YL, Kin LX, Yin WF, Chan KG. Quorum sensing activity in Pandoraea pnomenusa RB38. SENSORS 2014; 14:10177-86. [PMID: 24919016 PMCID: PMC4118335 DOI: 10.3390/s140610177] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Revised: 05/25/2014] [Accepted: 05/28/2014] [Indexed: 11/16/2022]
Abstract
Strain RB38 was recovered from a former dumping area in Malaysia. MALDI-TOF mass spectrometry and genomic analysis identified strain RB-38 as Pandoraea pnomenusa. Various biosensors confirmed its quorum sensing properties. High resolution triple quadrupole liquid chromatography–mass spectrometry analysis was subsequently used to characterize the N-acyl homoserine lactone production profile of P. pnomenusa strain RB38, which validated that this isolate produced N-octanoyl homoserine lactone as a quorum sensing molecule. This is the first report of the production of N-octanoyl homoserine lactone by P. pnomenusa strain RB38.
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Affiliation(s)
- Robson Ee
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia.
| | - Yan-Lue Lim
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia.
| | - Lin-Xin Kin
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia.
| | - Wai-Fong Yin
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia.
| | - Kok-Gan Chan
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia.
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31
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McGuigan L, Callaghan M. The evolving dynamics of the microbial community in the cystic fibrosis lung. Environ Microbiol 2014; 17:16-28. [DOI: 10.1111/1462-2920.12504] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Revised: 04/28/2014] [Accepted: 05/01/2014] [Indexed: 12/29/2022]
Affiliation(s)
- Luke McGuigan
- Department of Science; Centre of Microbial Host Interactions (CMHI); ITT-Dublin; Dublin Ireland
| | - Máire Callaghan
- Department of Science; Centre of Microbial Host Interactions (CMHI); ITT-Dublin; Dublin Ireland
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32
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Costello A, Reen FJ, O'Gara F, Callaghan M, McClean S. Inhibition of co-colonizing cystic fibrosis-associated pathogens by Pseudomonas aeruginosa and Burkholderia multivorans. MICROBIOLOGY-SGM 2014; 160:1474-1487. [PMID: 24790091 DOI: 10.1099/mic.0.074203-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Cystic fibrosis (CF) is a recessive genetic disease characterized by chronic respiratory infections and inflammation causing permanent lung damage. Recurrent infections are caused by Gram-negative antibiotic-resistant bacterial pathogens such as Pseudomonas aeruginosa, Burkholderia cepacia complex (Bcc) and the emerging pathogen genus Pandoraea. In this study, the interactions between co-colonizing CF pathogens were investigated. Both Pandoraea and Bcc elicited potent pro-inflammatory responses that were significantly greater than Ps. aeruginosa. The original aim was to examine whether combinations of pro-inflammatory pathogens would further exacerbate inflammation. In contrast, when these pathogens were colonized in the presence of Ps. aeruginosa the pro-inflammatory response was significantly decreased. Real-time PCR quantification of bacterial DNA from mixed cultures indicated that Ps. aeruginosa significantly inhibited the growth of Burkholderia multivorans, Burkholderia cenocepacia, Pandoraea pulmonicola and Pandoraea apista, which may be a factor in its dominance as a colonizer of CF patients. Ps. aeruginosa cell-free supernatant also suppressed growth of these pathogens, indicating that inhibition was innate rather than a response to the presence of a competitor. Screening of a Ps. aeruginosa mutant library highlighted a role for quorum sensing and pyoverdine biosynthesis genes in the inhibition of B. cenocepacia. Pyoverdine was confirmed to contribute to the inhibition of B. cenocepacia strain J2315. B. multivorans was the only species that could significantly inhibit Ps. aeruginosa growth. B. multivorans also inhibited B. cenocepacia and Pa. apista. In conclusion, both Ps. aeruginosa and B. multivorans are capable of suppressing growth and virulence of co-colonizing CF pathogens.
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Affiliation(s)
- Anne Costello
- Centre of Microbial Host Interactions, Centre of Applied Science for Health, Institute of Technology Tallaght, Old Blessington Road, Tallaght, Dublin 24, Ireland
| | - F Jerry Reen
- BIOMERIT Research Centre, Department of Microbiology, University College Cork, Ireland
| | - Fergal O'Gara
- Curtin University, School of Biomedical Sciences, Perth, WA 6845, Australia.,BIOMERIT Research Centre, Department of Microbiology, University College Cork, Ireland
| | - Máire Callaghan
- Centre of Microbial Host Interactions, Centre of Applied Science for Health, Institute of Technology Tallaght, Old Blessington Road, Tallaght, Dublin 24, Ireland
| | - Siobhán McClean
- Centre of Microbial Host Interactions, Centre of Applied Science for Health, Institute of Technology Tallaght, Old Blessington Road, Tallaght, Dublin 24, Ireland
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33
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Han-Jen RE, Wai-Fong Y, Kok-Gan C. Pandoraea sp. RB-44, a novel quorum sensing soil bacterium. SENSORS 2013; 13:14121-32. [PMID: 24145919 PMCID: PMC3859112 DOI: 10.3390/s131014121] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2013] [Revised: 09/20/2013] [Accepted: 09/30/2013] [Indexed: 11/16/2022]
Abstract
Proteobacteria are known to communicate via signaling molecules and this process is known as quorum sensing. The most commonly studied quorum sensing molecules are N-acylhomoserine lactones (AHLs) that consists of a homoserine lactone moiety and an N-acyl side chain with various chain lengths and degrees of saturation at the C-3 position. We have isolated a bacterium, RB-44, from a site which was formally a landfill dumping ground. Using matrix-assisted laser desorption ionization time-of-flight (MALDI-TOF) mass spectrometry analysis, this isolate was identified as a Pandoraea sp.which was then screened for AHL production using biosensors which indicated its quorum sensing properties. To identify the AHL profile of Pandoraea sp. RB-44, we used high resolution tandem mass spectrometry confirming that this isolate produced N-octanoylhomoserine lactone (C8-HSL). To the best of our knowledge, this is the first report that showed quorum sensing activity exhibited by Pandoraea sp. Our data add Pandoraea sp. to the growing number of bacteria that possess QS systems.
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Affiliation(s)
- Robson Ee Han-Jen
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia.
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34
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Mantovani RP, Levy CE, Yano T. A heat-stable cytotoxic factor produced by Achromobacter xylosoxidans isolated from Brazilian patients with CF is associated with in vitro increased proinflammatory cytokines. J Cyst Fibros 2012; 11:305-11. [PMID: 22440828 DOI: 10.1016/j.jcf.2012.02.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2011] [Revised: 02/11/2012] [Accepted: 02/14/2012] [Indexed: 10/28/2022]
Abstract
BACKGROUND Recently, Achromobacter xylosoxidans has been related to chronic lung diseases in patients suffering from cystic fibrosis (CF), but its involvement has not been elucidated. Some virulence properties of A. xylosoxidans isolated from Brazilian patients with CF were revealed in this work. METHODS This study examined the production of a cytotoxic factor of A. xylosoxidans capable of stimulating the secretion of inflammatory cytokines (IL-6 and IL-8) from lung mucoepidermoid carcinoma cells (NCI-H292). The cytokines were measured using enzyme-linked immunosorbent (ELISA) assays. To investigate whether the cytotoxic factors may be endotoxins, they were treated with polymyxin B. RESULTS The culture supernatants of all A. xylosoxidans produced a heat stable, active cytotoxin in NCI-H292 cells capable of leading to intracellular vacuoles and subsequent cell contact loss, chromatin condensation, a picnotic nucleus and cell death. There was a higher concentration of proinflammatory cytokines in the NCI-H292 cells after 24 h of incubation, with the fraction greater than 50 kDa from the culture supernatant. The cytotoxin activity remained even after treatment with polymyxin B, which suggested that the release of IL-6 and IL-8 was not stimulated by lipopolysaccharide (LPS). CONCLUSION The cytotoxic factor produced by A. xylosoxidans may represent an important virulence factor, which when associated with CF chronic lung inflammation, may cause tissue damage and decline of lung function.
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Affiliation(s)
- Rebeca P Mantovani
- Department of Genetics, Evolution and Bioagents, Biology Institute, State University of Campinas (UNICAMP), Campinas, SP, Brazil.
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35
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Di Lorenzo F, Silipo A, Costello A, Sturiale L, Garozzo D, Callaghan M, Lanzetta R, Parrilli M, McClean S, Molinaro A. Structural Study of the Lipopolysaccharide O-Antigen Produced by the Emerging Cystic Fibrosis Pathogen Pandoraea pulmonicola. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200047] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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36
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Clinical and microbiological features of a cystic fibrosis patient chronically colonized with Pandoraea sputorum identified by combining 16S rRNA sequencing and matrix-assisted laser desorption ionization-time of flight mass spectrometry. J Clin Microbiol 2011; 50:1096-8. [PMID: 22170922 DOI: 10.1128/jcm.05730-11] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Clonal isolates identified as various nonfermentative Gram-negative bacilli over a 5-year period from sputum cultures of a 30-year-old cystic fibrosis patient were successfully reidentified as Pandoraea sputorum by combining 16S rRNA sequencing and matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS). Decreased lung function improved after 1 year of azithromycin and inhaled 7%-hypertonic saline treatment.
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37
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Martínez-Lamas L, Rabade Castedo C, Martín Romero Domínguez M, Barbeito Castiñeiras G, Palacios Bartolomé A, Pérez del Molino Bernal ML. Pandoraea Sputorum Colonization in a Patient With Cystic Fibrosis. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.arbr.2011.06.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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38
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Martínez-Lamas L, Rabade Castedo C, Martín Romero Domínguez M, Barbeito Castiñeiras G, Palacios Bartolomé A, Pérez Del Molino Bernal ML. [Pandoraea sputorum colonization in a patient with cystic fibrosis]. Arch Bronconeumol 2011; 47:571-4. [PMID: 21908092 DOI: 10.1016/j.arbres.2011.06.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2011] [Revised: 06/13/2011] [Accepted: 06/14/2011] [Indexed: 10/17/2022]
Abstract
Cystic fibrosis (CF) is a disease produced by a defect in the transmembrane conductance regulator protein, CFTR. Currently, the morbidity and mortality associated with CF are fundamentally related with the lung affectation that is a consequence of this defect. With the progression of the disease, there is an increase in the isolation of non-fermenting gram-negative bacilli colonizing these patients. The genus Pandoraea arises from a reclassification of species included within the "Burkholderia cepacia complex". It is made up of 9 species susceptible only to tetracycline, imipenem and cotrimoxazole. We report the first clinical case in Spain of colonization by Pandoraea sputorum in a patient diagnosed with CF at the age of eleven. After several previous colonizations by different Pseudomonas species in September 2005, a gram-negative bacillus was isolated in sputum, which was identified by sequencing and mass spectrometry (MALDITOF-MS) as P. sputorum, only sensitive to piperacillin-tazobactam, cotrimoxazole and imipenem. From 2005 to 2008, chronic colonization by this microorganism was associated with deterioration in lung function that was recuperated after treatment with piperacillin-tazobactam and imipenem. In 2010, this microorganism was once again isolated and treated with imipenem, to which the patient responded favorably. Currently, it is not known whether this microorganism is a chronic colonizer, whether it produces a transitory infection or whether it constitutes an important problem in CF patients, but given its special characteristics of sensitivity to anti-microbial drugs, the correct identification of this genus is essential. Mass spectrometry seems to be a valid technique that is faster than sequencing methods for identifying these species.
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Affiliation(s)
- Lucía Martínez-Lamas
- Servicio de Microbiología y Parasitología, Complexo Hospitalario Universitario de Santiago de Compostela, La Coruña, España. lu
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39
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Costello A, Herbert G, Fabunmi L, Schaffer K, Kavanagh KA, Caraher EM, Callaghan M, McClean S. Virulence of an emerging respiratory pathogen, genus Pandoraea, in vivo and its interactions with lung epithelial cells. J Med Microbiol 2010; 60:289-299. [PMID: 21127160 DOI: 10.1099/jmm.0.022657-0] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Pandoraea species have emerged as opportunistic pathogens among cystic fibrosis (CF) and non-CF patients. Pandoraea pulmonicola is the predominant Pandoraea species among Irish CF patients. The objective of this study was to investigate the pathogenicity and potential mechanisms of virulence of Irish P. pulmonicola isolates and strains from other Pandoraea species. Three patients from whom the P. pulmonicola isolates were isolated have since died. The in vivo virulence of these and other Pandoraea strains was examined by determining the ability to kill Galleria mellonella larvae. The P. pulmonicola strains generally were the most virulent of the species tested, with three showing a comparable or greater level of virulence in vivo relative to another CF pathogen, Burkholderia cenocepacia, whilst strains from two other species, Pandoraea apista and Pandoraea pnomenusa, were considerably less virulent. For all Pandoraea species, whole cells were required for larval killing, as cell-free supernatants had little effect on larval survival. Overall, invasive Pandoraea strains showed comparable invasion of two independent lung epithelial cell lines, irrespective of whether they had a CF phenotype. Pandoraea strains were also capable of translocation across polarized lung epithelial cell monolayers. Although protease secretion was a common characteristic across the genus, it is unlikely to be involved in pathogenesis. In conclusion, whilst multiple mechanisms of pathogenicity may exist across the genus Pandoraea, it appears that lung cell invasion and translocation contribute to the virulence of P. pulmonicola strains.
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Affiliation(s)
- Anne Costello
- Centre of Applied Science for Health, ITT Dublin, Tallaght, Dublin 24, Ireland.,Centre of Microbial Host Interactions, ITT Dublin, Tallaght, Dublin 24, Ireland
| | - Gillian Herbert
- Centre of Microbial Host Interactions, ITT Dublin, Tallaght, Dublin 24, Ireland
| | - Lydia Fabunmi
- Centre of Microbial Host Interactions, ITT Dublin, Tallaght, Dublin 24, Ireland
| | - Kirsten Schaffer
- Department of Microbiology, St Vincent's University Hospital, Elm Park, Dublin, Ireland
| | - Kevin A Kavanagh
- Department of Biology, National University of Ireland, Maynooth, Co. Kildare, Ireland
| | - Emma M Caraher
- Centre of Applied Science for Health, ITT Dublin, Tallaght, Dublin 24, Ireland.,Centre of Microbial Host Interactions, ITT Dublin, Tallaght, Dublin 24, Ireland
| | - Máire Callaghan
- Centre of Applied Science for Health, ITT Dublin, Tallaght, Dublin 24, Ireland.,Centre of Microbial Host Interactions, ITT Dublin, Tallaght, Dublin 24, Ireland
| | - Siobhán McClean
- Centre of Applied Science for Health, ITT Dublin, Tallaght, Dublin 24, Ireland.,Centre of Microbial Host Interactions, ITT Dublin, Tallaght, Dublin 24, Ireland
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40
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Jian Liu, Abate W, Jinsheng Xu, Corry D, Kaul B, Jackson SK. Three-dimensional spheroid cultures of A549 and HepG2 cells exhibit different lipopolysaccharide (LPS) receptor expression and LPS-induced cytokine response compared with monolayer cultures. Innate Immun 2010; 17:245-55. [PMID: 20418262 DOI: 10.1177/1753425910365733] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Lipopolysaccharide (LPS) is a potent modulator of pathogen-induced host inflammatory responses. Lipopolysaccharide signaling to host cells is correlated with the expression of well-characterized LPS receptors. We have developed three-dimensional (3-D) cell cultures (spheroids) that are more representative of in vivo conditions than traditional monolayer cultures and may provide novel in vitro models to study the inflammatory response. In this work, we have compared F-actin organization, LPS-induced pro-inflammatory cytokine response and LPS receptor expression between spheroid and monolayer cultures from A549 lung epithelial cells and HepG2 hepatocytes. Significant junctional F-actin was seen at the cell—cell contact points throughout the spheroids, while monolayer cells showed stress fibers of actin and more prominent F-actin localized at the cell base. A time course of cytokine release in response to LPS showed that A549 spheroids secreted persistently higher levels of interleukin (IL)-6 and IL-8 compared with monolayer cultures. Unlike monolayer cultures, HepG2 spheroids responded to LPS by releasing a significant level of IL-8. We identified a significant increase in the expression of CD14 and MD2 in these spheroids compared with monolayers, which may explain the enhanced cytokine response to LPS. Thus, we suggest that 3-D spheroid cell cultures are more typical of in vivo cell responses to LPS during the development of inflammation and would be a better in vitro model in inflammation studies.
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Affiliation(s)
- Jian Liu
- Centre for Research in Biomedicine, University of the West of England, Bristol UK
| | - Wondwossen Abate
- Centre for Research in Biomedicine, University of the West of England, Bristol UK
| | - Jinsheng Xu
- Centre for Research in Biomedicine, University of the West of England, Bristol UK
| | - David Corry
- Centre for Research in Biomedicine, University of the West of England, Bristol UK
| | - Baksho Kaul
- Centre for Research in Biomedicine, University of the West of England, Bristol UK
| | - Simon K. Jackson
- Centre for Research in Biomedicine, University of the West of England, Bristol UK
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41
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Misidentification of Pandoraea sputorum isolated from sputum of a patient with cystic fibrosis and review of Pandoraea species infections in transplant patients. J Clin Microbiol 2008; 46:3165-8. [PMID: 18650348 DOI: 10.1128/jcm.00855-08] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Pandoraea species are considered emerging pathogens in cystic fibrosis (CF) patients, but few data exist regarding outcomes of patients colonized with these organisms. We report a case of Pandoraea sputorum colonization in a CF patient under consideration for lung transplantation and review five cases of lung transplantation involving Pandoraea species.
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