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Tejedor MT, Rial-Crestelo D, Diab L, de Lagarde M, Álvarez CJ, Lopez-Roa P. Fibrocavitary disease caused by Mycobacterium chimaera in a patient with HIV. AIDS 2024; 38:1446-1448. [PMID: 38932751 DOI: 10.1097/qad.0000000000003918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2024]
Affiliation(s)
- Maria Teresa Tejedor
- Pneumology Department
- Instituto de Investigación Hospital 12 de Octubre (imas12), Madrid, Spain
| | - David Rial-Crestelo
- HIV Unit - Internal Medicine Department, Hospital 12 de Octubre
- Instituto de Investigación Hospital 12 de Octubre (imas12), Madrid, Spain
| | - Layla Diab
- Pneumology Department
- Instituto de Investigación Hospital 12 de Octubre (imas12), Madrid, Spain
| | - Maria de Lagarde
- HIV Unit - Internal Medicine Department, Hospital 12 de Octubre
- CIBERINFEC
- Instituto de Investigación Hospital 12 de Octubre (imas12), Madrid, Spain
| | - Carlos José Álvarez
- Pneumology Department
- Instituto de Investigación Hospital 12 de Octubre (imas12), Madrid, Spain
| | - Paula Lopez-Roa
- Microbiology Department, Hospital 12 de Octubre
- Instituto de Investigación Hospital 12 de Octubre (imas12), Madrid, Spain
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Neves YCD, Reis AJ, Rodrigues MA, Chimara E, da Silva Lourenço MC, Fountain J, Ramis IB, von Groll A, Gerasimova Y, Rohde KH, Almeida da Silva PE. Detection of Mtb and NTM: preclinical validation of a new asymmetric PCR-binary deoxyribozyme sensor assay. Microbiol Spectr 2024; 12:e0350623. [PMID: 38651877 DOI: 10.1128/spectrum.03506-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 03/15/2024] [Indexed: 04/25/2024] Open
Abstract
Tuberculosis (TB) and infectious diseases caused by non-tuberculous mycobacteria (NTM) are global concerns. The development of a rapid and accurate diagnostic method, capable of detecting and identifying different mycobacteria species, is crucial. We propose a molecular approach, the BiDz-TB/NTM, based on the use of binary deoxyribozyme (BiDz) sensors for the detection of Mycobacterium tuberculosis (Mtb) and NTM of clinical interest. A panel of DNA samples was used to evaluate Mtb-BiDz, Mycobacterium abscessus/Mycobacterium chelonae-BiDz, Mycobacterium avium-BiDz, Mycobacterium intracellulare/Mycobacterium chimaera-BiDz, and Mycobacterium kansasii-BiDz sensors in terms of specificity, sensitivity, accuracy, and limit of detection. The BiDz sensors were designed to hybridize specifically with the genetic signatures of the target species. To obtain the BiDz sensor targets, amplification of a fragment containing the hypervariable region 2 of the 16S rRNA was performed, under asymmetric PCR conditions using the reverse primer designed based on linear-after-the-exponential principles. The BiDz-TB/NTM was able to correctly identify 99.6% of the samples, with 100% sensitivity and 0.99 accuracy. The individual values of specificity, sensitivity, and accuracy, obtained for each BiDz sensor, satisfied the recommendations for new diagnostic methods, with sensitivity of 100%, specificity and accuracy ranging from 98% to 100% and from 0.98 to 1.0, respectively. The limit of detection of BiDz sensors ranged from 12 genome copies (Mtb-BiDz) to 2,110 genome copies (Mkan-BiDz). The BiDz-TB/NTM platform would be able to generate results rapidly, allowing the implementation of the appropriate therapeutic regimen and, consequently, the reduction of morbidity and mortality of patients.IMPORTANCEThis article describes the development and evaluation of a new molecular platform for accurate, sensitive, and specific detection and identification of Mycobacterium tuberculosis and other mycobacteria of clinical importance. Based on BiDz sensor technology, this assay prototype is amenable to implementation at the point of care. Our data demonstrate the feasibility of combining the species specificity of BiDz sensors with the sensitivity afforded by asymmetric PCR amplification of target sequences. Preclinical validation of this assay on a large panel of clinical samples supports the further development of this diagnostic tool for the molecular detection of pathogenic mycobacteria.
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Affiliation(s)
- Yasmin Castillos das Neves
- Laboratory of Mycobacteria, Núcleo de Pesquisa em Microbiologia Médica, Universidade Federal do Rio Grande, Rio Grande do Sul, Brazil
| | - Ana Julia Reis
- Laboratory of Mycobacteria, Núcleo de Pesquisa em Microbiologia Médica, Universidade Federal do Rio Grande, Rio Grande do Sul, Brazil
| | - Marcos Alaniz Rodrigues
- Laboratory of Mycobacteria, Núcleo de Pesquisa em Microbiologia Médica, Universidade Federal do Rio Grande, Rio Grande do Sul, Brazil
| | - Erica Chimara
- Rede Brasileira de Pesquisa em Tuberculose (REDE-TB), Rio Grande, Rio Grande do Sul, Brazil
- Instituto Adolfo Lutz, São Paulo, Brazil
| | - Maria Cristina da Silva Lourenço
- Rede Brasileira de Pesquisa em Tuberculose (REDE-TB), Rio Grande, Rio Grande do Sul, Brazil
- Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, Brazil
| | - Jacques Fountain
- Division of Immunity and Pathogenesis, Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, Florida, Orlando, USA
| | - Ivy Bastos Ramis
- Laboratory of Mycobacteria, Núcleo de Pesquisa em Microbiologia Médica, Universidade Federal do Rio Grande, Rio Grande do Sul, Brazil
- Rede Brasileira de Pesquisa em Tuberculose (REDE-TB), Rio Grande, Rio Grande do Sul, Brazil
| | - Andrea von Groll
- Laboratory of Mycobacteria, Núcleo de Pesquisa em Microbiologia Médica, Universidade Federal do Rio Grande, Rio Grande do Sul, Brazil
- Rede Brasileira de Pesquisa em Tuberculose (REDE-TB), Rio Grande, Rio Grande do Sul, Brazil
| | - Yulia Gerasimova
- Department of Chemistry, College of Sciences, University of Central Florida, Orlando, Florida, Orlando, USA
| | - Kyle H Rohde
- Division of Immunity and Pathogenesis, Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, Florida, Orlando, USA
| | - Pedro Eduardo Almeida da Silva
- Laboratory of Mycobacteria, Núcleo de Pesquisa em Microbiologia Médica, Universidade Federal do Rio Grande, Rio Grande do Sul, Brazil
- Rede Brasileira de Pesquisa em Tuberculose (REDE-TB), Rio Grande, Rio Grande do Sul, Brazil
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Cannas A, Campanale A, Minella D, Messina F, Butera O, Nisii C, Mazzarelli A, Fontana C, Lispi L, Maraglino F, Di Caro A, Sabbatucci M. Epidemiological and Molecular Investigation of the Heater-Cooler Unit (HCU)-Related Outbreak of Invasive Mycobacterium chimaera Infection Occurred in Italy. Microorganisms 2023; 11:2251. [PMID: 37764096 PMCID: PMC10536513 DOI: 10.3390/microorganisms11092251] [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: 07/13/2023] [Revised: 09/04/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023] Open
Abstract
BACKGROUND From 2013 onwards, a large outbreak of Mycobacterium chimaera (MC) invasive infection, which was correlated with the use of contaminated heater-cooler units (HCUs) during open chest surgery, was reported from all over the world. Here, we report the results of the epidemiological and molecular investigations conducted in Italy after the alarm raised about this epidemic event. METHODS MC strains isolated from patients or from HCU devices were characterized by genomic sequencing and molecular epidemiological analysis. RESULTS Through retrospective epidemiological analysis conducted between January 2010 and December 2022, 40 possible cases of patients infected with MC were identified. Thirty-six strains isolated from these patients were analysed by whole genome sequencing (WGS) and were found to belong to the genotypes 1.1 or 1.8, which are the genotypes correlated with the outbreak. Most of the cases presented with prosthetic valve endocarditis, vascular graft infection or disseminated infection. Among the cases found, there were 21 deaths. The same analysis was carried out on HCU devices. A total of 251 HCUs were found to be contaminated by MC; genotypes 1.1 or 1.8 were identified in 28 of those HCUs. CONCLUSIONS To ensure patients' safety and adequate follow-up, clinicians and general practitioners were made aware of the results and public health measures, and recommendations were issued to prevent further cases in the healthcare settings. The Italian Society of Cardiac Surgery performed a national survey to assess the incidence of HCU-related MC prosthetic infections in cardiac surgery. No cases were reported after HCU replacement or structural modification and disinfection and possibly safe allocation outside surgical rooms.
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Affiliation(s)
- Angela Cannas
- National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, 00149 Rome, Italy; (A.C.); (F.M.); (O.B.); (A.M.); (C.F.)
| | - Antonella Campanale
- Unit 5, Directorate General of Medical Devices and Pharmaceutical Service, Ministry of Health, 00144 Rome, Italy; (A.C.); (D.M.); (L.L.)
| | - Daniela Minella
- Unit 5, Directorate General of Medical Devices and Pharmaceutical Service, Ministry of Health, 00144 Rome, Italy; (A.C.); (D.M.); (L.L.)
| | - Francesco Messina
- National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, 00149 Rome, Italy; (A.C.); (F.M.); (O.B.); (A.M.); (C.F.)
| | - Ornella Butera
- National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, 00149 Rome, Italy; (A.C.); (F.M.); (O.B.); (A.M.); (C.F.)
| | - Carla Nisii
- National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, 00149 Rome, Italy; (A.C.); (F.M.); (O.B.); (A.M.); (C.F.)
| | - Antonio Mazzarelli
- National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, 00149 Rome, Italy; (A.C.); (F.M.); (O.B.); (A.M.); (C.F.)
| | - Carla Fontana
- National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, 00149 Rome, Italy; (A.C.); (F.M.); (O.B.); (A.M.); (C.F.)
| | - Lucia Lispi
- Unit 5, Directorate General of Medical Devices and Pharmaceutical Service, Ministry of Health, 00144 Rome, Italy; (A.C.); (D.M.); (L.L.)
| | - Francesco Maraglino
- Unit 5, Directorate General Health Prevention Communicable Diseases and International Prophylaxis, Ministry of Health, 00144 Rome, Italy; (F.M.); (M.S.)
| | - Antonino Di Caro
- Department of Microbiology, Unicamillus International University of Medicine, 00131 Rome, Italy;
| | - Michela Sabbatucci
- Unit 5, Directorate General Health Prevention Communicable Diseases and International Prophylaxis, Ministry of Health, 00144 Rome, Italy; (F.M.); (M.S.)
- Department Infectious Diseases, Istituto Superiore di Sanità, 00161 Rome, Italy
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Schneidereit T, Schmeiser T, Mucke J. [Rare cause of inflammatory back pain]. Z Rheumatol 2022; 82:328-330. [PMID: 36175798 DOI: 10.1007/s00393-022-01273-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/29/2022] [Indexed: 10/14/2022]
Affiliation(s)
- T Schneidereit
- Bergisches Rheumazentrum, Krankenhaus St. Josef, Bergstr. 6-12, 42105, Wuppertal, Deutschland.
| | | | - J Mucke
- Poliklinik und Funktionsbereich für Rheumatologie, Universitätsklinikum Düsseldorf, Düsseldorf, Deutschland
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