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Morita A, Namkoong H, Uwamino Y, Mitarai S, Aono A, Asakura T, Yagi K, Tanaka H, Azekawa S, Nakagawara K, Kaji M, Nagao G, Kamata H, Matsushita H, Fukunaga K, Hasegawa N. Comparing minimum inhibitory concentrations of amikacin for pulmonary Mycobacterium avium complex disease: An analysis of culture media differences. J Infect Chemother 2024; 30:159-163. [PMID: 37717608 DOI: 10.1016/j.jiac.2023.09.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 08/31/2023] [Accepted: 09/14/2023] [Indexed: 09/19/2023]
Abstract
Mycobacterium avium complex (MAC) is considered a paramount microbe, especially in East Asia, including Japan. The commonly used commercial Minimum Inhibitory Concentrations (MIC) assay using Middlebrook 7H9 (7H9) medium deviates from the latest Clinical and Laboratory Standards Institute (CLSI) guidelines. Alternatively, measurement with cation-adjusted Mueller-Hinton broth (CAMHB) that conforms to CLSI standards is not yet widely available. Following the approval and commercialization of amikacin liposome inhalation suspension (ALIS) in 2021, a more precise evaluation of amikacin (AMK) susceptibility in MAC is necessary for treatment decisions. In the present study, 33 sputum samples were extracted from 27 patients, and MICs of AMK were compared between the frequently used 7H9 and the recommended CAMHB of the isolated MAC strains. The history of exposure to aminoglycosides for each sample was also added as clinical information. The findings indicated that there was only an 18% concordance rate in MIC between the two media, with 19 samples (58%) indicating lower MICs in 7H9 relative to CAMHB. The 17 samples had a history of exposure to aminoglycosides for periods ranging from 1.5 to 28 months. Specifically, 10 samples were exposed to amikacin by inhalation and intravenous injection, and the remaining seven samples had a history of ALIS inhalation. Samples with a prior utilization of aminoglycosides were significantly predisposed to developing resistance to ALIS compared to those without such a history (P = 0.046). Physicians are encouraged to scrutinize the findings of susceptibility testing utilizing CLSI-endorsed MIC assay using CAMHB medium to ascertain the optimal therapeutic approach.
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Affiliation(s)
- Atsuho Morita
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Ho Namkoong
- Department of Infectious Diseases, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan.
| | - Yoshifumi Uwamino
- Department of Infectious Diseases, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan; Department of Laboratory Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Satoshi Mitarai
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Tokyo, Japan
| | - Akio Aono
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Tokyo, Japan
| | - Takanori Asakura
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan; Department of Clinical Medicine (Laboratory of Bioregulatory Medicine), Kitasato University School of Pharmacy, Tokyo, Japan; Department of Respiratory Medicine, Kitasato University, Kitasato Institute Hospital, Tokyo, Japan
| | - Kazuma Yagi
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Hiromu Tanaka
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Shuhei Azekawa
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Kensuke Nakagawara
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Masanori Kaji
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Genta Nagao
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Hirofumi Kamata
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Hiromichi Matsushita
- Department of Laboratory Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Koichi Fukunaga
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Naoki Hasegawa
- Department of Infectious Diseases, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
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Komiya K, Yoshida M, Uchida S, Takikawa S, Yamasue M, Matsumoto T, Morishige Y, Aono A, Hiramatsu K, Yamaoka Y, Nishizono A, Ato M, Kadota JI, Mitarai S. Massive and Lengthy Clonal Nosocomial Expansion of Mycobacterium abscessus subsp. massiliense among Patients Who Are Ventilator Dependent without Cystic Fibrosis. Microbiol Spectr 2023; 11:e0490822. [PMID: 37314340 PMCID: PMC10433864 DOI: 10.1128/spectrum.04908-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 05/30/2023] [Indexed: 06/15/2023] Open
Abstract
Nontuberculous mycobacterial infections are generally believed to be independently acquired from the environment. Although person-to-person transmission of nontuberculous mycobacteria, especially Mycobacterium abscessus subsp. massiliense, is a serious concern among individuals with cystic fibrosis (CF), evidence of its spread among patients without CF has never been established. We unexpectedly found a number of M. abscessus subsp. massiliense cases among patients without CF in a hospital. This study aimed to define the mechanism of M. abscessus subsp. massiliense infection among patients who were ventilator dependent and without CF who had progressive neurodegenerative diseases in our long-term care wards from 2014 to 2018 during suspected nosocomial outbreaks. We conducted whole-genome sequencing of M. abscessus subsp. massiliense isolates from 52 patients and environmental samples. Potential opportunities for in-hospital transmission were analyzed using epidemiological data. M. abscessus subsp. massiliense was isolated from one air sample obtained near a patient without CF who was colonized with M. abscessus subsp. massiliense but not from other potential sources. Phylogenetic analysis of the strains from these patients and the environmental isolate revealed clonal expansion of near-identical M. abscessus subsp. massiliense isolates, with the isolates generally differing by fewer than 22 single nucleotide polymorphisms (SNPs). Approximately half of the isolates differed by fewer than nine SNPs, indicating interpatient transmission. Whole-genome sequencing revealed a potential nosocomial outbreak among patients who were ventilator dependent and without CF. IMPORTANCE The isolation of M. abscessus subsp. massiliense from the air, but not from environmental fluid samples, may suggest airborne transmission. This was the first report to demonstrate person-to-person transmission of M. abscessus subsp. massiliense, even among patients without CF. M. abscessus subsp. massiliense may spread among patients who are ventilator dependent without CF through direct or indirect in-hospital transmission. The current infection control measures should address potential transmission among patients without CF, particularly in facilities that treat patients who are ventilator dependent and patients with preexisting chronic pulmonary diseases, such as CF.
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Affiliation(s)
- Kosaku Komiya
- Respiratory Medicine and Infectious Diseases, Oita University Faculty of Medicine, Yufu, Oita, Japan
- Research Center for GLOBAL and LOCAL Infectious Diseases, Oita University Faculty of Medicine, Yufu, Oita, Japan
| | - Mitsunori Yoshida
- Department of Mycobacteriology, Leprosy Research Centre, National Institute of Infectious Diseases, Higashimurayama, Tokyo, Japan
| | - Sonoe Uchida
- Internal Medicine, National Hospital Organization Nishi-Beppu Hospital, Beppu, Oita, Japan
- Respiratory Medicine, Bungoono City Hospital, Bungoono, Oita, Japan
| | - Shuichi Takikawa
- Internal Medicine, National Hospital Organization Nishi-Beppu Hospital, Beppu, Oita, Japan
| | - Mari Yamasue
- Respiratory Medicine and Infectious Diseases, Oita University Faculty of Medicine, Yufu, Oita, Japan
- Internal Medicine, National Hospital Organization Nishi-Beppu Hospital, Beppu, Oita, Japan
| | - Takashi Matsumoto
- Department of Environmental and Preventive Medicine, Oita University Faculty of Medicine, Yufu, Oita, Japan
| | - Yuta Morishige
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Tokyo, Japan
| | - Akio Aono
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Tokyo, Japan
| | - Kazufumi Hiramatsu
- Respiratory Medicine and Infectious Diseases, Oita University Faculty of Medicine, Yufu, Oita, Japan
- Research Center for GLOBAL and LOCAL Infectious Diseases, Oita University Faculty of Medicine, Yufu, Oita, Japan
| | - Yoshio Yamaoka
- Research Center for GLOBAL and LOCAL Infectious Diseases, Oita University Faculty of Medicine, Yufu, Oita, Japan
- Department of Environmental and Preventive Medicine, Oita University Faculty of Medicine, Yufu, Oita, Japan
| | - Akira Nishizono
- Research Center for GLOBAL and LOCAL Infectious Diseases, Oita University Faculty of Medicine, Yufu, Oita, Japan
- Department of Microbiology, Oita University Faculty of Medicine, Oita, Japan
| | - Manabu Ato
- Department of Mycobacteriology, Leprosy Research Centre, National Institute of Infectious Diseases, Higashimurayama, Tokyo, Japan
| | - Jun-ichi Kadota
- Respiratory Medicine and Infectious Diseases, Oita University Faculty of Medicine, Yufu, Oita, Japan
| | - Satoshi Mitarai
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Tokyo, Japan
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Uwamino Y, Aono A, Tomita Y, Morimoto K, Kawashima M, Kamata H, Sasaki Y, Nagai H, Hasegawa N, Mitarai S. Diagnostic Utility of a Mycobacterium Multiplex PCR Detection Panel for Tuberculosis and Nontuberculous Mycobacterial Infections. Microbiol Spectr 2023; 11:e0516222. [PMID: 37093012 PMCID: PMC10269564 DOI: 10.1128/spectrum.05162-22] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 04/03/2023] [Indexed: 04/25/2023] Open
Abstract
The prevalence of nontuberculous mycobacterial diseases is increasing worldwide, and tuberculosis remains highly prevalent. Rapid and accurate microbial diagnoses of both tuberculosis and nontuberculous mycobacterial infections are required. A novel PCR-reverse sequence-specific oligonucleotide probe (PCR-rSSO) method-based mycobacterial detection panel (Myco-Panel) test was developed for the rapid identification of 30 mycobacterial species and subspecies. Clinical respiratory samples were collected from patients with suspected or confirmed tuberculosis and nontuberculous mycobacterial lung disease and those with other respiratory diseases. Myco-Panel tests were performed on the samples, and liquid mycobacterial culture and identification were performed for reference according to housekeeping gene sequences of mycobacteria in positive culture tubes. Furthermore, to assess the detection performance for several mycobacterial species rarely recovered in Japan, the accuracy of the Myco-Panel test was investigated using stock mycobacterial type strains and clinical isolates. A total of 178 clinical respiratory samples were analyzed. The Myco-Panel and sequence-based identification results for mycobacterial cultures were 83.1% concordant (kappa coefficient, 0.785 [95% confidence interval, 0.716 to 0.854]). The Myco-Panel correctly identified 281 of the 283 type strains and clinical isolates tested. The Myco-Panel test could accurately detect several mycobacterial species from clinical respiratory samples and mycobacterial suspensions. Rapid and accurate identification of pathogens using respiratory samples is possible using the Myco-Panel. IMPORTANCE Species identification is important for the diagnosis of mycobacterial infections and decisions on treatment regimens. The Myco-Panel test accurately detects clinically common mycobacterial species that cause respiratory infections from clinical respiratory samples and mycobacterial suspensions. The rapid identification of multiple mycobacterial species will provide clinically useful information for the management of patients. Although we understand that the current diagnostic criteria require mycobacterial culture results in general for the diagnosis of nontuberculous mycobacterial infection, mycobacterial culture examination is a time-consuming process. The detection of potentially causative agents directly from clinical samples will aid in practical diagnosis and decision-making for rapid treatment initiation. This is a new laboratory method for species identification, and evaluating its performance is important.
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Affiliation(s)
- Yoshifumi Uwamino
- Department of Laboratory Medicine, Keio University School of Medicine, Tokyo, Japan
- Department of Infectious Diseases, Keio University School of Medicine, Tokyo, Japan
| | - Akio Aono
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Yu Tomita
- Medical & Biological Laboratories Co., Ltd. (MBL), Tokyo, Japan
| | - Kozo Morimoto
- Department of Pulmonary Medicine, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Masahiro Kawashima
- Department of Pulmonary Medicine, National Hospital Organization Tokyo National Hospital, Tokyo, Japan
| | - Hirofumi Kamata
- Division of Pulmonary Medicine, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Yuka Sasaki
- Department of Pulmonary Medicine, National Hospital Organization Tokyo National Hospital, Tokyo, Japan
| | - Hideaki Nagai
- Department of Pulmonary Medicine, National Hospital Organization Tokyo National Hospital, Tokyo, Japan
| | - Naoki Hasegawa
- Department of Infectious Diseases, Keio University School of Medicine, Tokyo, Japan
| | - Satoshi Mitarai
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
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Fujiwara K, Aono A, Asami T, Morimoto K, Kamada K, Morishige Y, Igarashi Y, Chikamatsu K, Murase Y, Yamada H, Takaki A, Mitarai S. In Vitro Synergistic Effects of Omadacycline with Other Antimicrobial Agents against Mycobacterium abscessus. Antimicrob Agents Chemother 2023; 67:e0157922. [PMID: 37154742 PMCID: PMC10269086 DOI: 10.1128/aac.01579-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 04/17/2023] [Indexed: 05/10/2023] Open
Abstract
The clinical importance of Mycobacterium abscessus species (MABS) infections has been increasing. However, the standard treatment regimens recommended in the current guidelines often result in unfavorable outcomes. Therefore, we investigated the in vitro activity of omadacycline (OMC), a novel tetracycline, against MABS to explore its potential as a novel therapeutic option. The drug susceptibilities of 40 Mycobacterium abscessus subsp. abscessus (Mab) clinical strains obtained from the sputum of 40 patients from January 2005 to May 2014 were investigated. The MIC results for OMC, amikacin (AMK), clarithromycin (CLR), clofazimine (CLO), imipenem (IPM), rifabutin (RFB), and tedizolid (TZD) alone and their combined effects (with OMC) were examined using the checkerboard method. Additionally, we studied the differences in the effectiveness of the antibiotic combinations based on the colony morphotype of Mab. The MIC50 and MIC90 of OMC alone were 2 and 4 μg/mL, respectively. The combinations of OMC with AMK, CLR, CLO, IPM, RFB, and TZD showed synergy against 17.5%, 75.8%, 25.0%, 21.1%, 76.9%, and 34.4% of the strains, respectively. Additionally, OMC combined with CLO (47.1% versus 9.5%, P = 0.023) or TZD (60.0% versus 12.5%, P = 0.009) showed significantly higher synergy against strains with rough morphotypes than those with smooth morphotypes. In conclusion, the checkerboard analyses revealed that the synergistic effects of OMC were observed most frequently with RFB, followed by CLR, TZD, CLO, IPM, and AMK. Furthermore, OMC tended to be more effective against rough-morphotype Mab strains.
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Affiliation(s)
- Keiji Fujiwara
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
- Department of Basic Mycobacteriosis, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Akio Aono
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Takahiro Asami
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Kozo Morimoto
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
- Department of Clinical Mycobacteriosis, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
- Division of Clinical Research, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Keisuke Kamada
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Yuta Morishige
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Yuriko Igarashi
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Kinuyo Chikamatsu
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Yoshiro Murase
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Hiroyuki Yamada
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Akiko Takaki
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Satoshi Mitarai
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
- Department of Basic Mycobacteriosis, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
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Kim J, Hasegawa T, Tada K, Uehara Y, Fukui Y, Nakamura A, Takei S, Mitarai S, Aono A, Ikeda S. A Systemic Lupus Erythematosus Patient with Cutaneous Mycobacterium haemophilum Infection under Belimumab Treatment: A Case Report. Ann Dermatol 2023; 35:S63-S66. [PMID: 37853868 PMCID: PMC10608360 DOI: 10.5021/ad.21.077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 07/21/2021] [Accepted: 07/26/2021] [Indexed: 10/20/2023] Open
Abstract
A 38-year-old female with systemic lupus erythematosus (SLE) initiated belimumab treatment. One month later, she presented with a reddish painful swelling on her right lower leg. She was treated with ceftriaxone and vancomycin. However, novel erythematous papules and indurated nodules appeared on both her lower legs. Skin biopsy revealed microabscess formation with mixed cell granuloma surrounded by inflammatory cell infiltration within the dermis with subcutaneous fat tissue. A large number of acid-fast bacilli were observed with Ziehl-Neelsen staining. DNA sequencing of both the hsp65 and the 16S rRNA sequences showed a 100% match with the corresponding region of Mycobacterium haemophilum. Mycobacterial culture revealed satellite growth enhancement on Middlebrook 7H11 agar plates around a paper strip containing hemin. She was treated with levofloxacin, rifabutin, and ethambutol. Within 13 months, her cutaneous lesions improved markedly without any side effects. The B cell-targeted biologic belimumab, a fully humanized IgG1γ monoclonal antibody that inactivates B lymphocyte stimulator, has been considered to be beneficial for active SLE. However, this therapy could increase the risk for the development of biologic therapy-associated mycobacterial infections, both tuberculosis and nontuberculous mycobacteria infections.
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Affiliation(s)
- Jonghun Kim
- Department of Dermatology and Allergology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Toshio Hasegawa
- Department of Dermatology and Allergology, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - Kurisu Tada
- Department of Rheumatology and Internal Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Yuki Uehara
- Department of General Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Clinical Laboratory, St Luke's International Hospital, Tokyo, Japan
| | - Yukiko Fukui
- Department of General Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Ayako Nakamura
- Department of Clinical Laboratory Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Satomi Takei
- Department of Clinical Laboratory Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Satoshi Mitarai
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Akio Aono
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Shigaku Ikeda
- Department of Dermatology and Allergology, Juntendo University Graduate School of Medicine, Tokyo, Japan
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Fujiwara K, Yoshida M, Murase Y, Aono A, Furuuchi K, Tanaka Y, Ohta K, Ato M, Mitarai S, Morimoto K. Potential Cross-Transmission of Mycobacterium abscessus among Non-Cystic Fibrosis Patients at a Tertiary Hospital in Japan. Microbiol Spectr 2022; 10:e0009722. [PMID: 35536059 PMCID: PMC9241747 DOI: 10.1128/spectrum.00097-22] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 04/16/2022] [Indexed: 11/20/2022] Open
Abstract
Mycobacterium abscessus (M. abscessus) is a highly antimicrobial-resistant pathogen that causes refractory pulmonary disease. Recently, the possibility of M. abscessus cross-transmission among cystic fibrosis (CF) patients has been reported. CF is rare in Asia, but M. abscessus pulmonary disease is common. Therefore, we investigated the possibility of M. abscessus cross-transmission in a Japanese hospital setting. Of 104 M. abscessus isolates, 25 isolates from 24 patients were classified into four clusters based on their variable number of tandem repeat profiles and were subjected to whole-genome sequencing (WGS). The epidemiological linkages among our patients were investigated by integrating the WGS data of previously reported nosocomial outbreak-related M. abscessus clinical isolates in the United Kingdom and the United States. Eight transmissible clusters (TCs) were identified. The United Kingdom and United States isolates were assigned to four clusters (TC1, TC2, TC5, and TC8) and one cluster (TC3), respectively. A total of 12 isolates from our hospital belonged to 4 clusters (TC4, TC5, TC6, and TC7). Epidemiological linkage analysis inferred direct or indirect transmission between patients in our hospital in TC4 and TC5 but not in TC6 and TC7. In TC5, the single nucleotide polymorphism distance between isolates from Japanese and United Kingdom patients was less than 21; however, there was no contact. This study revealed that genetically closely related isolates exist, even in non-CF patients. However, the transmission route remains unclear, and further research is warranted to clarify whether cross-transmission is involved. IMPORTANCE Although the possibility of Mycobacterium abscessus (M. abscessus) cross-transmission in cystic fibrosis (CF) patients has often been reported, it is not clear whether similar events have occurred in Asian non-CF patients. Whole-genome sequencing analysis of M. abscessus isolates from Fukujuji Hospital in Japan indicated that genetically closely related M. abscessus isolates exist. In addition, according to epidemiological linkage analysis, some clusters were suspected of direct or indirect transmission between patients within our hospital. However, the transmission route of M. abscessus remains unclear, because interestingly, one cluster showed a single nucleotide polymorphism distance of less than 21 from the United Kingdom isolates, but no epidemiological linkage was identified.
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Affiliation(s)
- Keiji Fujiwara
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
- Department of Basic Mycobacteriosis, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Mitsunori Yoshida
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Yoshiro Murase
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Akio Aono
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Koji Furuuchi
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
- Department of Basic Mycobacteriosis, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Yoshiaki Tanaka
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Ken Ohta
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Manabu Ato
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Satoshi Mitarai
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
- Department of Basic Mycobacteriosis, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Kozo Morimoto
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
- Division of Clinical Research, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
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Kobayashi M, Motoki Y, Yamagishi T, Hirano H, Nonaka M, Aono A, Mitarai S, Saito T. A case of primary multidrug-resistant pulmonary tuberculosis with high minimum inhibitory concentration value for bedaquiline. J Infect Chemother 2022; 28:1193-1197. [PMID: 35550867 DOI: 10.1016/j.jiac.2022.04.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Revised: 04/25/2022] [Accepted: 04/27/2022] [Indexed: 11/29/2022]
Abstract
Bedaquiline is a new ATP synthesis inhibitor developed as an anti-tuberculosis agent. It has resistance-associated variants (RAV), regardless of preceding bedaquiline exposure. Herein, we describe the case of a patient with multidrug-resistant tuberculosis (MDR-TB) who had no history of bedaquiline therapy but presented a relatively high minimum inhibitory concentration (MIC) of bedaquiline (1 μg/mL). Whole genome sequencing revealed a mutation in the resistance-associated gene Rv0678. The patient was first treated with a five-drug regimen (bedaquiline, delamanid, levofloxacin, cycloserine, and amikacin), which induced negative sputum culture conversion. Despite the successful treatment outcome, several questions remain regarding the efficacy of bedaquiline in this patient. Bedaquiline is an indispensable drug for MDR-TB treatment, but its clinical efficiency in the presence of Rv0678 mutations remains unclear. Therefore, evaluating the MIC of bedaquiline even in patients without a history of bedaquiline use is important for therapeutic regimen selection and may emphasize the importance of therapeutic drug monitoring in cases of bedaquiline RAV.
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Affiliation(s)
- Masahiro Kobayashi
- Department of Clinical Laboratory, National Hospital Organization Ibaraki-higashi National Hospital, 825 TerunumaTokai, Naka District, Ibaraki, 319-1113, Japan.
| | - Yuya Motoki
- Department of Clinical Laboratory, National Hospital Organization Ibaraki-higashi National Hospital, 825 TerunumaTokai, Naka District, Ibaraki, 319-1113, Japan
| | - Tetuya Yamagishi
- Department of Respiratory Medicine, National Hospital Organization Ibaraki-higashi National Hospital, 825 TerunumaTokai, Naka District, Ibaraki, 319-1113, Japan
| | - Hitomi Hirano
- Department of Respiratory Medicine, National Hospital Organization Ibaraki-higashi National Hospital, 825 TerunumaTokai, Naka District, Ibaraki, 319-1113, Japan
| | - Mizu Nonaka
- Department of Respiratory Medicine, National Hospital Organization Ibaraki-higashi National Hospital, 825 TerunumaTokai, Naka District, Ibaraki, 319-1113, Japan
| | - Akio Aono
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, 3-1-24 Matsuyama, Kiyose, Tokyo, 204-8533, Japan
| | - Satoshi Mitarai
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, 3-1-24 Matsuyama, Kiyose, Tokyo, 204-8533, Japan
| | - Takefumi Saito
- Department of Respiratory Medicine, National Hospital Organization Ibaraki-higashi National Hospital, 825 TerunumaTokai, Naka District, Ibaraki, 319-1113, Japan
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Aono A, Murase Y, Chikamatsu K, Igarashi Y, Shimomura Y, Hosoya M, Osugi A, Morishige Y, Takaki A, Yamada H, Mitarai S. In vitro activity of tedizolid and linezolid against multidrug-resistant Mycobacterium tuberculosis: a comparative study using microdilution broth assay and genomics. Diagn Microbiol Infect Dis 2022; 103:115714. [DOI: 10.1016/j.diagmicrobio.2022.115714] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 03/15/2022] [Accepted: 04/15/2022] [Indexed: 12/01/2022]
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9
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Aono A, Murase Y, Minegishi M, Ohtawa S, Yano M, Chikamatsu K, Shimomura Y, Hosoya M, Igarashi Y, Morishige Y, Yamada H, Takaki A, Togashi K, Hiura M, Mitarai S. Clinical evaluation of the cobas® MTB-RIF/INH reagent and the cobas® 6800 for the detection of isoniazid and rifampicin resistance. Tuberculosis (Edinb) 2022; 134:102199. [DOI: 10.1016/j.tube.2022.102199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 03/09/2022] [Accepted: 03/15/2022] [Indexed: 11/24/2022]
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10
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Igarashi Y, Chikamatsu K, Sano S, Miyamoto S, Aono A, Osugi A, Morishige Y, Murase Y, Yamada H, Takaki A, Mitarai S. Development of a nucleic acid chromatography assay for the detection of commonly isolated rapidly growing mycobacteria. J Med Microbiol 2021; 70. [PMID: 34878370 DOI: 10.1099/jmm.0.001464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Introduction. Non-tuberculosis mycobacterium infections are increasing worldwide, including those caused by rapidly growing mycobacteria (RGM).Gap Statement. The identification of the aetiological agent in the context of infections is essential for the adoption of an adequate therapeutic approach. However, the methods for the rapid distinction of different RGM species are less than optimal.Aim. To develop a nucleic acid chromatography kit to identify clinically common RGM.Methodology. We tried to develop a nucleic acid chromatography kit designed to detect four RGM species (including three subspecies) i.e. Mycobacterium abscessus subsp. abscessus, Mycobacterium abscessus subsp. bolletii (detected as M. abscessus/bolletii) Mycobacterium abscessus subsp. massiliense, Mycobacterium fortuitum, Mycobacterium chelonae and Mycobacterium peregrinum. The amplified target genes for each species/subspecies using multiplex PCR were analysed using a nucleic acid chromatography assay.Results. Among the 159 mycobacterial type strains and 70 RGM clinical isolates tested, the developed assay correctly identified all relevant RGM without any cross-reactivity or false-negatives. The limits of detection for each species were approximately 0.2 pg µl-1.Conclusion. The rapid and simple nucleic acid chromatography method developed here, which does not involve heat denaturation, may contribute to the rapid identification and treatment of RGM infections.
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Affiliation(s)
- Yuriko Igarashi
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association (JATA), 3-1-24 Matsuyama, Kiyose, Tokyo 204-8533, Japan
| | - Kinuyo Chikamatsu
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association (JATA), 3-1-24 Matsuyama, Kiyose, Tokyo 204-8533, Japan
| | - Sotaro Sano
- Medical SV, Kaneka Corporation, 1-8 Miyamaemachi, Takasago-cho, Takasago, Hyogo 676-8688, Japan
| | - Shigehiko Miyamoto
- Medical SV, Kaneka Corporation, 1-8 Miyamaemachi, Takasago-cho, Takasago, Hyogo 676-8688, Japan
| | - Akio Aono
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association (JATA), 3-1-24 Matsuyama, Kiyose, Tokyo 204-8533, Japan
| | - Asami Osugi
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association (JATA), 3-1-24 Matsuyama, Kiyose, Tokyo 204-8533, Japan
| | - Yuta Morishige
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association (JATA), 3-1-24 Matsuyama, Kiyose, Tokyo 204-8533, Japan
| | - Yoshiro Murase
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association (JATA), 3-1-24 Matsuyama, Kiyose, Tokyo 204-8533, Japan
| | - Hiroyuki Yamada
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association (JATA), 3-1-24 Matsuyama, Kiyose, Tokyo 204-8533, Japan
| | - Akiko Takaki
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association (JATA), 3-1-24 Matsuyama, Kiyose, Tokyo 204-8533, Japan
| | - Satoshi Mitarai
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association (JATA), 3-1-24 Matsuyama, Kiyose, Tokyo 204-8533, Japan.,Department of Basic Mycobacteriology, Graduate School of Biomedical Sciences, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
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11
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Hamada S, Takata T, Kitaura T, Teraoka C, Aono A, Taniguchi S, Mae Y, Isomoto H, Chikumi H, Mitarai S. Peritoneal dialysis-associated peritonitis caused by Mycobacteroides massiliense: the first case and review of the literature. BMC Nephrol 2021; 22:90. [PMID: 33711948 PMCID: PMC7953774 DOI: 10.1186/s12882-021-02297-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 03/08/2021] [Indexed: 11/11/2022] Open
Abstract
Background Peritoneal dialysis (PD)-associated peritonitis caused by nontuberculous Mycobacterium is rare; however, the number of cases has increased over the past decades. Mycobacteroides massiliense is a subspecies of the Mycobacteroides abscessus complex. It has different clinical characteristics compared to the other subspecies of the complex. Previous case reports of PD-associated peritonitis caused by Mycobacteroides abscessus complex have not distinguished the subspecies in detail. Case presentation A 40-year-old man presented with an exit-site and tunnel infection refractory to antibiotic therapy. Peritonitis occurred after simultaneous catheter removal and reinsertion. The Mycobacteroides abscessus complex was detected in the culture of the dialysis effluent. Removal of the PD catheter combined with antibiotics, including macrolides, resulted in a good clinical course. Further analysis of multiplex PCR and the hsp65 gene sequence identified the bacterium as Mycobacteroides massiliense. Conclusions The Mycobacteroides abscessus complex is classified into three subspecies; Mycobacteroides abscessus, Mycobacteroides massiliense, and Mycobacteroides bolletii. These have different characteristics, particularly antibiotic susceptibility. Therefore, clear identification of the subspecies of the Mycobacteroides abscessus complex is necessary for definitive treatment.
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Affiliation(s)
- Shintaro Hamada
- Division of Gastroenterology and Nephrology, Tottori University Faculty of Medicine, 36-1 Nishimachi, Yonago, Tottori, 683-8504, Japan
| | - Tomoaki Takata
- Division of Gastroenterology and Nephrology, Tottori University Faculty of Medicine, 36-1 Nishimachi, Yonago, Tottori, 683-8504, Japan.
| | - Tsuyoshi Kitaura
- Division of Infectious Diseases, Tottori University Faculty of Medicine, Yonago, Tottori, 683-8504, Japan
| | - Chiori Teraoka
- Department of Clinical Laboratory, Tottori University Hospital, Yonago, Tottori, 683-8504, Japan
| | - Akio Aono
- The Research Institute of Tuberculosis, Japan Anti-tuberculosis Association, Kiyose, Tokyo, 204-0023, Japan
| | - Sosuke Taniguchi
- Division of Gastroenterology and Nephrology, Tottori University Faculty of Medicine, 36-1 Nishimachi, Yonago, Tottori, 683-8504, Japan
| | - Yukari Mae
- Division of Gastroenterology and Nephrology, Tottori University Faculty of Medicine, 36-1 Nishimachi, Yonago, Tottori, 683-8504, Japan
| | - Hajime Isomoto
- Division of Gastroenterology and Nephrology, Tottori University Faculty of Medicine, 36-1 Nishimachi, Yonago, Tottori, 683-8504, Japan
| | - Hiroki Chikumi
- Division of Infectious Diseases, Tottori University Faculty of Medicine, Yonago, Tottori, 683-8504, Japan
| | - Satoshi Mitarai
- The Research Institute of Tuberculosis, Japan Anti-tuberculosis Association, Kiyose, Tokyo, 204-0023, Japan
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12
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Asami T, Aono A, Chikamatsu K, Igarashi Y, Morishige Y, Murase Y, Yamada H, Takaki A, Mitarai S. Efficacy estimation of a combination of triple antimicrobial agents against clinical isolates of Mycobacterium abscessus subsp. abscessus in vitro. JAC Antimicrob Resist 2021; 3:dlab004. [PMID: 34223082 PMCID: PMC8210157 DOI: 10.1093/jacamr/dlab004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 01/04/2021] [Indexed: 11/30/2022] Open
Abstract
Background Mycobacterium abscessus subsp. abscessus (M. abscessus) is a rapidly growing mycobacterium that is resistant to most antibiotics. The number of patients with pulmonary disease caused by M. abscessus is increasing in several regions, and therapy involves long-term antibiotic combination treatments, although no standard treatment regimen has been established. Objectives To examine candidate regimens for maintenance of antimicrobial treatment against M. abscessus by measuring MIC using the three-drug chequerboard method. Methods We evaluated the drug susceptibility of 70 clinical isolates of M. abscessus using the three-drug chequerboard method. We tested the antimycobacterial agents bedaquiline, clofazimine, amikacin, and sitafloxacin (which showed a relatively low MIC range when used as single agents) alone and in combinations. Results The three-drug combinations of bedaquiline/clofazimine/amikacin, and bedaquiline/clofazimine/sitafloxacin were studied. Among isolates for which the fractional inhibitory concentration index (FICI) could be calculated, 29/70 isolates (41%) and 11/70 isolates (16%) showed a synergistic response (FICI ≤0.75) with combined use of bedaquiline/clofazimine/amikacin, or with bedaquiline/clofazimine/sitafloxacin, respectively. Conclusions The combination of bedaquiline with clofazimine plus either amikacin or sitafloxacin may be useful as maintenance regimens when treating pulmonary disease caused by M. abscessus.
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Affiliation(s)
- Takahiro Asami
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-tuberculosis Association, Kiyose, Japan
| | - Akio Aono
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-tuberculosis Association, Kiyose, Japan
| | - Kinuyo Chikamatsu
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-tuberculosis Association, Kiyose, Japan
| | - Yuriko Igarashi
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-tuberculosis Association, Kiyose, Japan
| | - Yuta Morishige
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-tuberculosis Association, Kiyose, Japan
| | - Yoshiro Murase
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-tuberculosis Association, Kiyose, Japan
| | - Hiroyuki Yamada
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-tuberculosis Association, Kiyose, Japan
| | - Akiko Takaki
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-tuberculosis Association, Kiyose, Japan
| | - Satoshi Mitarai
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-tuberculosis Association, Kiyose, Japan.,Basic Mycobacteriosis, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
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13
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Fujiwara K, Furuuchi K, Aono A, Uesugi F, Shirai T, Nakamoto K, Shimada T, Mochizuki F, Tanaka Y, Iijima H, Yoshiyama T, Shiraishi Y, Kurashima A, Ohta K, Mitarai S, Morimoto K. Clinical risk factors related to treatment failure in Mycobacterium abscessus lung disease. Eur J Clin Microbiol Infect Dis 2021; 40:247-254. [PMID: 32875518 DOI: 10.1007/s10096-020-04026-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Accepted: 08/26/2020] [Indexed: 10/23/2022]
Abstract
The clinical importance of Mycobacterium abscessus subsp. abscessus (M. abscessus) lung disease has been increasing, but few studies have assessed the clinical characteristics associated with the treatment outcome. We retrospectively analyzed 75 consecutive patients with M. abscessus lung disease diagnosed at a tertiary hospital from January 2004 to April 2018. Among 52 patients with sufficient clinical data, 19 patients (42.2%) achieved treatment success. Compared with 26 (57.8%) patients in the treatment failure group, body mass index (BMI) (19.8 vs 17.5 kg/m2, P = 0.022), previous nontuberculous mycobacterial (NTM) lung disease (26.3% vs 61.5%, P = 0.034), the presence of cavitary lesions (31.6% vs 69.2%, P = 0.017), and the bronchiectasis score (3.0 vs 5.0, P = 0.003) were significantly different in the treatment success group. Multivariate analysis showed that age (adjusted hazard ratio (aHR), 0.94; 95% confidence interval (CI), 0.90 to 0.99; P = 0.010), the presence of cavitary lesions (aHR, 0.34; 95% CI, 0.12 to 0.94; P = 0.039), and previous NTM lung disease (aHR, 0.28; 95% CI, 0.09 to 0.86; P = 0.026) were negatively associated with treatment success. This is the first study to show that previous NTM lung disease might be a clinically important factor related to unfavorable treatment outcomes in M. abscessus lung disease patients. To increase our understanding the characteristics of M. abscessus lung disease, this factor should be independently analyzed in future research.
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Affiliation(s)
- Keiji Fujiwara
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, 3-1-24, Matsuyama, Kiyose City, Tokyo, 204-8522, Japan
| | - Koji Furuuchi
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, 3-1-24, Matsuyama, Kiyose City, Tokyo, 204-8522, Japan
| | - Akio Aono
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Fumiko Uesugi
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, 3-1-24, Matsuyama, Kiyose City, Tokyo, 204-8522, Japan
| | - Tatsuya Shirai
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, 3-1-24, Matsuyama, Kiyose City, Tokyo, 204-8522, Japan
- Department of Respiratory Medicine, Kyorin University School of Medicine, Mitaka, Japan
| | - Keitaro Nakamoto
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, 3-1-24, Matsuyama, Kiyose City, Tokyo, 204-8522, Japan
- Department of Respiratory Medicine, Kyorin University School of Medicine, Mitaka, Japan
| | - Takafumi Shimada
- Department of Respiratory Medicine, Tsukuba Medical Center, Tsukuba, Japan
| | - Fumi Mochizuki
- Department of Respiratory Medicine, Tsukuba Medical Center, Tsukuba, Japan
| | - Yoshiaki Tanaka
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, 3-1-24, Matsuyama, Kiyose City, Tokyo, 204-8522, Japan
| | - Hiroaki Iijima
- Department of Respiratory Medicine, Tsukuba Medical Center, Tsukuba, Japan
| | - Takashi Yoshiyama
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, 3-1-24, Matsuyama, Kiyose City, Tokyo, 204-8522, Japan
| | - Yuji Shiraishi
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, 3-1-24, Matsuyama, Kiyose City, Tokyo, 204-8522, Japan
| | - Atsuyuki Kurashima
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, 3-1-24, Matsuyama, Kiyose City, Tokyo, 204-8522, Japan
| | - Ken Ohta
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, 3-1-24, Matsuyama, Kiyose City, Tokyo, 204-8522, Japan
| | - Satoshi Mitarai
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Kozo Morimoto
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, 3-1-24, Matsuyama, Kiyose City, Tokyo, 204-8522, Japan.
- Division of Clinical Research, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan.
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14
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Yamada H, Chikamatsu K, Aono A, Murata K, Miyazaki N, Kayama Y, Bhatt A, Fujiwara N, Maeda S, Mitarai S. Fundamental Cell Morphologies Examined With Cryo-TEM of the Species in the Novel Five Genera Robustly Correlate With New Classification in Family Mycobacteriaceae. Front Microbiol 2020; 11:562395. [PMID: 33304323 PMCID: PMC7701246 DOI: 10.3389/fmicb.2020.562395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 10/12/2020] [Indexed: 11/25/2022] Open
Abstract
A recent study proposed the novel classification of the family Mycobacteriaceae based on the genome analysis of core proteins in 150 Mycobacterium species. The results from these analyses supported the existence of five distinct monophyletic groups within the genus Mycobacterium. That is, Mycobacterium has been divided into two novel genera for rapid grower Mycobacteroides and Mycolicibacterium, and into three genera for slow grower Mycolicibacter, Mycolicibacillus, and an emended genus Mycobacterium, which include all the major human pathogens. Here, cryo-TEM examinations of 1,816 cells of 31 species (34 strains) belonging to the five novel genera were performed. The fundamental morphological properties of every single cell, such as cell diameter, cell length, cell perimeter, cell circularity, and aspect ratio were measured and compared between these genera. In 50 comparisons on the five parameters between any two genera, only five comparisons showed “non-significant” differences. That is, there are non-significant differences between slow grower genus Mycolicibacillus and genus Mycobacterium in average cell diameter (p = 0.15), between rapid grower genus Mycobacteroides and slow grower genus Mycobacterium in average cell length (p > 0.24), between genus Mycobacteroides and genus Mycobacterium (p > 0.68) and between genus Mycolicibacter and genus Mycolicibacillus (p > 0.11) in average cell perimeter, and between genus Mycolicibacterium and genus Mycobacterium in circularity (p > 0.73). The other 45 comparisons showed significant differences between the genera. Genus Mycobacteroides showed the longest average cell diameter, whereas the genus Mycolicibacter showed the shortest average diameter. Genus Mycolicibacterium showed the most extended average cell length, perimeter, and aspect ratio, whereas the genus Mycolicibacillus showed the shortest average cell length, perimeter, and aspect ratio. Genus Mycolicibacillus showed the highest average cell circularity, whereas genus Mycobacterium showed the lowest average cell circularity. These fundamental morphological data strongly support the new classification in the family Mycobacteriaceae, and this classification is rational and effective in the study of the members of the family Mycobacteriaceae. Because both the genus Mycolicibacterium and the genus Mycobacterium contain many species and showed larger significant standard deviations in every parameter, these genera may be divided into novel genera which show common genotype and phenotypes in morphology and pathogenicity.
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Affiliation(s)
- Hiroyuki Yamada
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Kinuyo Chikamatsu
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Akio Aono
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Kazuyoshi Murata
- Supportive Center for Brain Research, National Institute for Physiological Science, Okazaki, Japan
| | - Naoyuki Miyazaki
- Supportive Center for Brain Research, National Institute for Physiological Science, Okazaki, Japan.,Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, Tsukuba, Japan
| | | | - Apoorva Bhatt
- School of Biosciences and Institute of Microbiology and Infection, University of Birmingham, Birmingham, United Kingdom
| | - Nagatoshi Fujiwara
- Department of Food and Nutrition, Faculty of Contemporary Human Life Science, Tezukayama University, Nara, Japan
| | - Shinji Maeda
- Department of Pharmacy, Faculty of Pharmaceutical Science, Hokkaido University of Science, Sapporo, Japan
| | - Satoshi Mitarai
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan.,Department of Basic Mycobacteriology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
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15
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Fujiwara K, Furuuchi K, Aono A, Uesugi F, Osawa T, Shimoda M, Takaki A, Kurashima A, Ohta K, Mitarai S, Morimoto K. Mycobacterium europaeum lung disease in an immunocompetent patient without underlying lung disease. J Infect Chemother 2020; 27:107-109. [PMID: 32988729 DOI: 10.1016/j.jiac.2020.09.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 08/30/2020] [Accepted: 09/09/2020] [Indexed: 10/23/2022]
Abstract
Mycobacterium europaeum (M. europaeum) was recently identified as a nontuberculous mycobacterium belonging to the Mycobacterium simiae complex. There have been only a few reported cases of M. europaeum lung disease, all of which occurred in patients with immunodeficiency or prior lung disease. We herein report a case of M. europaeum lung disease in an otherwise healthy Japanese individual. A 70-year-old woman who had no apparent immunodeficiency or medical history was diagnosed with M. europaeum lung disease by multiple positive sputum cultures. The patient was successfully treated with clarithromycin, rifampin, ethambutol, and amikacin. This report is the first case of M. europaeum lung disease occurring in an individual without predisposing risk factors.
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Affiliation(s)
- Keiji Fujiwara
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Koji Furuuchi
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan; Department of Basic Mycobacteriosis, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Akio Aono
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Fumiko Uesugi
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Takeshi Osawa
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Masafumi Shimoda
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Akiko Takaki
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Atsuyuki Kurashima
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Ken Ohta
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Satoshi Mitarai
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Kozo Morimoto
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan; Division of Clinical Research, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan.
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16
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Yoshiyama T, Mitarai S, Takaki A, Aono A, Okumura M, Ohta K, Kato S. Multi-drug resistant tuberculosis with simultaneously acquired-drug resistance to bedaquiline and delamanid. Clin Infect Dis 2020; 73:2329-2331. [PMID: 32730621 DOI: 10.1093/cid/ciaa1064] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 07/25/2020] [Indexed: 11/13/2022] Open
Abstract
This study is the first to report a clinical case of simultaneously acquired resistance to bedaquiline (BDQ) and delamanid (DLM). Whole genome sequencing revealed two nucleotide insertions (Rv0678 and fbiC) in the Mycobacterium tuberculosis isolate. The minimum inhibitory concentrations for BDQ and DLM were 0.25 µg/ml and >2.0 µg/ml, respectively.
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Affiliation(s)
- Takashi Yoshiyama
- Research institute of tuberculosis and Fukujuji hospital, Tokyo Japan
| | - Satoshi Mitarai
- Department of mycobacterial reference and research, Research institute of tuberculosis, Tokyo, Japan
| | - Akiko Takaki
- Department of mycobacterial reference and research, Research institute of tuberculosis, Tokyo, Japan
| | - Akio Aono
- Department of mycobacterial reference and research, Research institute of tuberculosis, Tokyo, Japan
| | - Masao Okumura
- Respiratory diseases center, Fukujuji hospital, Tokyo, Japan
| | | | - Seiya Kato
- Research institute of tuberculosis, Tokyo, Japan
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17
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Kaniga K, Aono A, Borroni E, Cirillo DM, Desmaretz C, Hasan R, Joseph L, Mitarai S, Shakoor S, Torrea G, Ismail NA, Omar SV. Validation of Bedaquiline Phenotypic Drug Susceptibility Testing Methods and Breakpoints: a Multilaboratory, Multicountry Study. J Clin Microbiol 2020; 58:e01677-19. [PMID: 31969421 PMCID: PMC7098739 DOI: 10.1128/jcm.01677-19] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 01/13/2020] [Indexed: 02/08/2023] Open
Abstract
Drug-resistant tuberculosis persists as a major public health concern. Alongside efficacious treatments, validated and standardized drug susceptibility testing (DST) is required to improve patient care. This multicountry, multilaboratory external quality assessment (EQA) study aimed to validate the sensitivity, specificity, and reproducibility of provisional bedaquiline MIC breakpoints and World Health Organization interim critical concentrations (CCs) for categorizing clinical Mycobacterium tuberculosis isolates as susceptible/resistant to the drug. Three methods were used: Middlebrook 7H11 agar proportion (AP) assay, broth microdilution (BMD) assay, and mycobacterial growth indicator tube (MGIT) assay. Each of the five laboratories tested the 40-isolate (20 unique isolates, duplicated) EQA panel at three time points. The study validated the sensitivity and specificity of a bedaquiline MIC susceptibility breakpoint of 0.12 μg/ml for the BMD method and WHO interim CCs of 1 μg/ml for MGIT and 0.25 μg/ml for the 7H11 AP methods. Categorical agreements between observed and expected results and sensitivities/specificities for correctly identifying an isolate as susceptible/resistant were highest at the 0.25, 0.12, and 1 μg/ml bedaquiline concentrations for the AP method, BMD (frozen or dry plates), and MGIT960, respectively. At these concentrations, the very major error rates for erroneously categorizing an isolate as susceptible when it was resistant were the lowest and within CLSI guidelines. The most highly reproducible bedaquiline DST methods were MGIT960 and BMD using dry plates. These findings validate the use of standardized DST methodologies and interpretative criteria to facilitate routine phenotypic bedaquiline DST and to monitor the emergence of bedaquiline resistance.
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Affiliation(s)
- Koné Kaniga
- Johnson & Johnson Global Public Health, Titusville, New Jersey, USA
| | - Akio Aono
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-tuberculosis Association, Kiyose, Japan
| | - Emanuele Borroni
- Emerging Bacterial Pathogens Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Daniela Maria Cirillo
- Emerging Bacterial Pathogens Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Christel Desmaretz
- Department of Biomedical Sciences, Mycobacteriology Unit, Institute of Tropical Medicine, Antwerp, Belgium
| | - Rumina Hasan
- Department of Pathology and Laboratory Medicine, The Aga Khan University, Karachi, Pakistan
- Faculty of Infectious and Tropical Disease, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Lavania Joseph
- Center for Tuberculosis, National and WHO Supranational TB Reference Laboratory, National Institute for Communicable Diseases, National Health Laboratory Services, Johannesburg, South Africa
| | - Satoshi Mitarai
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-tuberculosis Association, Kiyose, Japan
| | - Sadia Shakoor
- Department of Pathology and Laboratory Medicine, The Aga Khan University, Karachi, Pakistan
| | - Gabriela Torrea
- Department of Biomedical Sciences, Mycobacteriology Unit, Institute of Tropical Medicine, Antwerp, Belgium
| | - Nazir Ahmed Ismail
- Center for Tuberculosis, National and WHO Supranational TB Reference Laboratory, National Institute for Communicable Diseases, National Health Laboratory Services, Johannesburg, South Africa
- Department of Medical Microbiology, University of Pretoria, Pretoria, South Africa
- Department of Internal Medicine, University of Witwatersrand, Johannesburg, South Africa
| | - Shaheed V Omar
- Center for Tuberculosis, National and WHO Supranational TB Reference Laboratory, National Institute for Communicable Diseases, National Health Laboratory Services, Johannesburg, South Africa
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Yamada H, Chikamastu K, Aono A, Murata K, Miyazaki N, Kayama Y, Fujiwara N, Maeda S, Mitarai S. PB-01 Comparison of the fundamental cell morphological properties examined with whole-mount ice-embedded cryo-TEM between 5 genera in family Mycobacteriacea. Microscopy (Oxf) 2019. [DOI: 10.1093/jmicro/dfz084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Hiroyuki Yamada
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Kinuyo Chikamastu
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Akio Aono
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Kazuyoshi Murata
- National Institute for Physiological Sciences, National Institutes of Natural Sciences, Aichi, Japan
| | - Naoyuki Miyazaki
- National Institute for Physiological Sciences, National Institutes of Natural Sciences, Aichi, Japan
| | | | - Nagatoshi Fujiwara
- Department of Food and Nutrition, Faculty of Contemporary Human Life Science, Tezukayama University, Nara, Japan
| | - Shinji Maeda
- Department of Life Science, Faculty of Pharmaceutical Sciences, Hokkaido University of Science, Hokkaido, Japan
| | - Satoshi Mitarai
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
- Department of Basic Mycobacteriology, Graduate School of Biomedical Science, Nagasaki University, Nagasaki, Japan
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Takaki A, Aono A, Chikamatsu K, Igarashi Y, Shimomura Y, Murase Y, Yoshida H, Tamura Y, Nagai T, Morishige Y, Yamada H, Mitarai S. Characteristics of drug susceptibility testing for bedaquline and clofazimine of 178 drug-resistant Mycobacterium tuberculosis isolates in Japan. Tuberculosis (Edinb) 2019. [DOI: 10.1183/13993003.congress-2019.oa2137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Tsai MA, Wang PC, Yoshida S, Aono A, Mitarai S, Wada T, Chen SC. Establishment of loop-mediated isothermal amplification for rapid and convenient detection of Mycobacterium marinum complex. J Microbiol Methods 2019; 164:105671. [PMID: 31326444 DOI: 10.1016/j.mimet.2019.105671] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 07/16/2019] [Accepted: 07/16/2019] [Indexed: 12/24/2022]
Abstract
Mycobacterium marinum is a zoonotic pathogen that can cause dermatological infection mainly from contaminated water or fish. Some well-known genetically similar species and subspecies are M. lifrandii and M. pseudoshottsii from amphibians and fish in aquaculture, and M. ulcerans, a causative agent of a neglected tropical disease (NTD), Buruli ulcer. They are believed to survive in water as their major niche, which might be related to their source of infection, but detailed ecological surveillance of the species complex remains to be done. Herein, we present a new detection system for M. marinum complex based on isothermal DNA amplification that can be conducted conveniently with high sensitivity and specificity. The target was a chromosomal gene, mrsA, including a restriction polymorphism between M. ulcerans (except for the most ancestral subspecies, M. ulcerans subsp. shinshuense) and the other species. The system was able to detect less than 500 fg (approximately 70 copies) of genomic DNA of M. marinum, within 60 min, and caused no amplification from mycobacterial species other than M. marinum complex species. It was also verified that restriction of the amplified DNA fragments was able to discriminate M. ulcerans as expected. This easy, quick, and convenient system is expected to facilitate detection of M. marinum complex from various resources.
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Affiliation(s)
- Ming-An Tsai
- Department of Biology, National Museum of Marine Biology and Aquarium, Checheng, Pingtung, Taiwan, Republic of China; Graduate Institute of Marine Biology, National Dong Hwa University, Checheng, Pingtung, Taiwan, Republic of China
| | - Pei-Chi Wang
- Department of Veterinary Medicine, College of Veterinary Medicine, National Pingtung University of Science and Technology, Neipu, Pingtung, Taiwan, Republic of China
| | - Shiomi Yoshida
- Clinical Research Center, National Hospital Organization Kinki-chuo Chest Medical Center, Sakai, Osaka, Japan; Department of International Health, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | - Akio Aono
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Anti-tuberculosis Association, Kiyose, Tokyo, Japan
| | - Satoshi Mitarai
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Anti-tuberculosis Association, Kiyose, Tokyo, Japan
| | - Takayuki Wada
- Department of International Health, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan; School of Tropical Medicine and Global Health, Nagasaki University, Nagasaki, Japan.
| | - Shih-Chu Chen
- Department of Veterinary Medicine, College of Veterinary Medicine, National Pingtung University of Science and Technology, Neipu, Pingtung, Taiwan, Republic of China.
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Yoshida S, Tsuyuguchi K, Chikamatsu K, Aono A, Takaki A, Mitarai S, Kobayashi T, Inoue Y, Suzuki K. Antimicrobial susceptibility patterns and MICs among non-photochromogenic rapidly growing Mycobacteroides and Mycolicibacterium species. J Med Microbiol 2019; 68:1279-1286. [PMID: 31282855 DOI: 10.1099/jmm.0.001035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Introduction. Non-photochromogenic rapidly growing mycobacteria (NPRGM) that branch distinctly from Mycobacteroides (Myco) and Mycolicibacterium (Mycolici) are increasingly observed clinically and present a complicated treatment challenge; thus, appropriate in vitro susceptibility testing is required.Methodology. We evaluated the MICs of nine antimicrobials used in the treatment of infections of 25 NPRGM type strains. The relation of inducible macrolide resistance with functional erythromycin ribosomal methylase (erm) genes was also investigated.Results. The initial clarithromycin MIC reading at 3 days showed resistance in four of the Mycolici strains. In contrast, the presence of erm genes among Mycolici species differed from previous findings. Both Myco and Mycolici species were highly susceptible to amikacin and linezolid. Myco species were resistant to fluoroquinolones, while Mycolici species were susceptible. Meropenem showed low activity against Myco species, but high activity against Mycolici species.Conclusion. NPRGM clade-specific susceptibility patterns suggest an urgent need to establish distinct breakpoints for Myco and Mycolici species.
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Affiliation(s)
- Shiomi Yoshida
- Clinical Research Center, National Hospital Organization Kinki-chuo Chest Medical Center, Sakai, Japan
| | - Kazunari Tsuyuguchi
- Clinical Research Center, National Hospital Organization Kinki-chuo Chest Medical Center, Sakai, Japan
| | - Kinuyo Chikamatsu
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-tuberculosis Association, Kiyose, Japan
| | - Akio Aono
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-tuberculosis Association, Kiyose, Japan
| | - Akiko Takaki
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-tuberculosis Association, Kiyose, Japan
| | - Satoshi Mitarai
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-tuberculosis Association, Kiyose, Japan.,Basic Mycobacteriosis, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Takehiko Kobayashi
- Internal Medicine, National Hospital Organization Kinki-chuo Chest Medical Center, Sakai, Japan
| | - Yoshikazu Inoue
- Clinical Research Center, National Hospital Organization Kinki-chuo Chest Medical Center, Sakai, Japan
| | - Katsuhiro Suzuki
- Internal Medicine, National Hospital Organization Kinki-chuo Chest Medical Center, Sakai, Japan
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Iwamoto T, Murase Y, Yoshida S, Aono A, Kuroda M, Sekizuka T, Yamashita A, Kato K, Takii T, Arikawa K, Kato S, Mitarai S. Overcoming the pitfalls of automatic interpretation of whole genome sequencing data by online tools for the prediction of pyrazinamide resistance in Mycobacterium tuberculosis. PLoS One 2019; 14:e0212798. [PMID: 30817803 PMCID: PMC6394917 DOI: 10.1371/journal.pone.0212798] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 02/09/2019] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVES Automated online software tools that analyse whole genome sequencing (WGS) data without the need for bioinformatics expertise can motivate the implementation of WGS-based molecular drug susceptibility testing (DST) in routine diagnostic settings for tuberculosis (TB). Pyrazinamide (PZA) is a key drug for current and future TB treatment regimens; however, it was reported that predictive power for PZA resistance by the available tools is low. Therefore, this low predictive power may make users hesitant to use the tools. This study aimed to elucidate why and to uncover the real performance of the tools when taking into account their variation calling lists (manual inspection), not just their automated reporting system (default setting) that was evaluated by previous studies. METHODS WGS data from 191 datasets comprising 108 PZA-resistant and 83 susceptible strains were used to evaluate the potential performance of the available online tools (TB Profiler, TGS-TB, PhyResSE, and CASTB) for predicting phenotypic PZA resistance. RESULTS When taking into consideration the variation calling lists, 73 variants in total (47 non-synonymous mutations and 26 indels) in pncA were detected by TGS-TB and PhyResSE, covering all mutations for the 108 PZA-resistant strains. The 73 variants were confirmed by Sanger sequencing. TB Profiler also detected all but three complete loss, two large deletion at the 3'-end, and one relatively large insertion of pncA. On the other hand, many of the 73 variants were lacking in the automated reporting systems except by TGS-TB; of these variants, CASTB detected only 20. By applying the 'non-wild type sequence' approach for predicting PZA resistance, accuracy of the results significantly improved compared with that of the automated results obtained by each tool. CONCLUSION Users can obtain more accurate predictions for PZA resistance than previously reported by manually checking the results and applying the 'non-wild type sequence' approach.
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Affiliation(s)
- Tomotada Iwamoto
- Department of Infectious Diseases, Kobe Institute of Health, Kobe City, Japan
- * E-mail: (TI); (SM)
| | - Yoshiro Murase
- Bacteriology Division, Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose City, Tokyo, Japan
| | - Shiomi Yoshida
- Clinical Research Center, National Hospital Organization Kinki-chuo Chest Medical Center, Sakai City, Osaka, Japan
| | - Akio Aono
- Bacteriology Division, Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose City, Tokyo, Japan
| | - Makoto Kuroda
- Pathogen Genomics Center, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Tsuyoshi Sekizuka
- Pathogen Genomics Center, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Akifumi Yamashita
- Pathogen Genomics Center, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Kengo Kato
- Pathogen Genomics Center, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Takemasa Takii
- Molecular Epidemiology Division, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose City, Tokyo, Japan
| | - Kentaro Arikawa
- Department of Infectious Diseases, Kobe Institute of Health, Kobe City, Japan
| | - Seiya Kato
- Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose City, Tokyo, Japan
| | - Satoshi Mitarai
- Bacteriology Division, Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose City, Tokyo, Japan
- Basic Mycobacteriosis, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki City, Nagasaki, Japan
- * E-mail: (TI); (SM)
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23
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Aono A, Morimoto K, Chikamatsu K, Yamada H, Igarashi Y, Murase Y, Takaki A, Mitarai S. Antimicrobial susceptibility testing of Mycobacteroides (Mycobacterium) abscessus complex, Mycolicibacterium (Mycobacterium) fortuitum, and Mycobacteroides (Mycobacterium) chelonae. J Infect Chemother 2018; 25:117-123. [PMID: 30447882 DOI: 10.1016/j.jiac.2018.10.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 10/14/2018] [Accepted: 10/16/2018] [Indexed: 10/27/2022]
Abstract
The drug susceptibility of rapidly growing mycobacteria (RGM) varies among isolates. Treatment strategies similarly differ depending on the isolate, and for some, no clear strategy has been identified. This complicates clinical management of RGM. Following Clinical and Laboratory Standards Institute standard M24-A2, we assessed the susceptibility of 140 RGM isolates to 14 different antimicrobial drugs by measuring their minimal inhibitory concentrations (MICs). We also investigated the correlation of clarithromycin (CAM) MICs with the erm(41) and rrl gene mutations in the Mycobacteroides (Mycobacterium) abscessus complex, the rrl mutation in Mycobacteroides (Mycobacterium) chelonae, and the erm(39) mutation in Mycolicibacterium (Mycobacterium) fortuitum to determine the contribution of these mutations to CAM susceptibility. The five species and subspecies examined included 48 M. abscessus subsp. abscessus isolates (34.3%), 35 (25.0%) being M. abscessus subsp. massiliense, and two (1.4%) being M. abscessus subsp. bolletii. The M. abscessus complex accounted for 85 isolates (60.7%) in total, whereas 43 isolates (30.7%) were M. fortuitum, and 12 (8.6%) were M. chelonae. Our results demonstrated species-specific susceptibility to antimicrobials. In most cases, susceptibility to CAM could be predicted based on genetic pattern, but since one isolate did not fit that pattern, MIC values needed to be measured. Some isolates also exhibited rates of resistance to other drugs that differed from those previously reported in other locations, indicating that accurate identification of the bacterial isolate and use of the correct method for determining MIC are both important for the diagnosis of RGM.
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Affiliation(s)
- Akio Aono
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-tuberculosis Association, Kiyose, Japan.
| | - Kozo Morimoto
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Kinuyo Chikamatsu
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-tuberculosis Association, Kiyose, Japan
| | - Hiroyuki Yamada
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-tuberculosis Association, Kiyose, Japan
| | - Yuriko Igarashi
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-tuberculosis Association, Kiyose, Japan
| | - Yoshiro Murase
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-tuberculosis Association, Kiyose, Japan
| | - Akiko Takaki
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-tuberculosis Association, Kiyose, Japan
| | - Satoshi Mitarai
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-tuberculosis Association, Kiyose, Japan; Basic Mycobacteriosis, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
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Yamada H, Chikamatsu K, Aono A, Igarashi Y, Takaki A, Mitarai S. PB-01Comparison of fundamental morphological properties between species belonging to genera Mycobacterium, Mycobacteroides and Mycolicibacterium. Microscopy (Oxf) 2018. [DOI: 10.1093/jmicro/dfy090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Hiroyuki Yamada
- Dept. of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, JATA, Tokyo
| | - Kinuyo Chikamatsu
- Dept. of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, JATA, Tokyo
| | - Akio Aono
- Dept. of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, JATA, Tokyo
| | - Yuriko Igarashi
- Dept. of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, JATA, Tokyo
| | - Akiko Takaki
- Dept. of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, JATA, Tokyo
| | - Satoshi Mitarai
- Dept. of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, JATA, Tokyo
- Dept. of Basic Mycobacteriology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
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Morimoto K, Nakagawa T, Asami T, Morino E, Fujiwara H, Hase I, Tsujimoto Y, Izumi K, Hayashi Y, Matsuda S, Murase Y, Yano R, Takasaki J, Betsuyaku T, Aono A, Goto H, Nishimura T, Sasaki Y, Hoshino Y, Kurashima A, Ato M, Ogawa K, Hasegawa N, Mitarai S. Clinico-microbiological analysis of 121 patients with pulmonary Mycobacteroides abscessus complex disease in Japan - An NTM-JRC study with RIT. Respir Med 2018; 145:14-20. [PMID: 30509703 DOI: 10.1016/j.rmed.2018.10.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 09/10/2018] [Accepted: 10/15/2018] [Indexed: 11/18/2022]
Abstract
RATIONALE No comprehensive analysis has previously been performed to evaluate the clinical aspects of and microbiological evidence associated with Mycobacteroides abscessus complex (MABC) infection in a region, such as Japan, with a low MABC incidence. OBJECTIVES This study aimed to clarify the clinicopathological characteristics of MABC, which included clinical relatedness to erm(41) sequevar, phenotype (as colony morphology and minimum inhibitory concentration), and genotype. METHODS A total of 121 MABC patients (68 with M. abscessus subsp. abscessus and 53 with M. abscessus subsp. massiliense) were recruited into this retrospective clinical-biological study from tertiary hospitals in Japan between 2004 and 2014. RESULTS Approximately 30% of MABC patients had a history of previous nontuberculous mycobacterium (NTM) disease. Furthermore, 24.8% of the patients had another concomitant NTM infection after they were diagnosed with MABC. Fewer than 10% of the patients in the M. abscessus group had T28C in erm(41). While we observed a higher conversion rate for M. massiliense than for M. abscessus (72.4% and 34.8%, respectively, p = 0.002), recurrence remained relatively common for M. massiliense (31.0%). In the M. abscessus patients, the MIC of clarithromycin (CLR) was significantly lower on day 3 in patients with a better treatment response than in refractory patients (The median MIC; 0.75 μg/ml v.s 2.0 μg/ml, p = 0.03). There was no significant relation between clinical manifestations and variable number of tandem repeat genotypes. CONCLUSIONS Because the history and simultaneous isolation of other NTM in MABC infection are relatively common, these information should be carefully translated into clinical actions. The evaluation of early CLR resistance in M. abscessus and the erm(41) functions should be important to improve the treatment strategy.
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Affiliation(s)
- Kozo Morimoto
- Division of Clinical Research, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan; Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan; Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan.
| | - Taku Nakagawa
- Department of Respiratory medicine, National Hospital Organization, Higashinagoya National Hospital, Nagoya, Japan
| | - Takahiro Asami
- Division of Pulmonary Medicine, School of Medicine, Keio University, Tokyo, Japan
| | - Eriko Morino
- Department of Respiratory Medicine, Division of Infectious Diseases, National Center for Global Health and Medicine, Tokyo, Japan
| | - Hiroshi Fujiwara
- Division of Pulmonary Medicine, School of Medicine, Keio University, Tokyo, Japan
| | - Isano Hase
- Department of Respiratory Medicine, National Hospital Organization, Utsunomiya Hospital, Utsunomiya, Japan
| | - Yoshie Tsujimoto
- Department of Respiratory Medicine, Division of Infectious Diseases, National Center for Global Health and Medicine, Tokyo, Japan
| | - Kiyohiko Izumi
- Department of Epidemiology and Clinical Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan; Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Yuta Hayashi
- Department of Respiratory medicine, National Hospital Organization, Higashinagoya National Hospital, Nagoya, Japan
| | - Shuichi Matsuda
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Yoshiro Murase
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Ryozo Yano
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Jin Takasaki
- Department of Respiratory Medicine, Division of Infectious Diseases, National Center for Global Health and Medicine, Tokyo, Japan
| | - Tomoko Betsuyaku
- Division of Pulmonary Medicine, School of Medicine, Keio University, Tokyo, Japan
| | - Akio Aono
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Hajime Goto
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | | | - Yuka Sasaki
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Yoshihiko Hoshino
- Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Atsuyuki Kurashima
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Manabu Ato
- Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Kenji Ogawa
- Department of Respiratory medicine, National Hospital Organization, Higashinagoya National Hospital, Nagoya, Japan
| | - Naoki Hasegawa
- Center for Infectious Diseases and Infection Control, Keio University School of Medicine, Tokyo, Japan
| | - Satoshi Mitarai
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan; Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
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Yamada H, Yamaguchi M, Igarashi Y, Chikamatsu K, Aono A, Murase Y, Morishige Y, Takaki A, Chibana H, Mitarai S. Mycolicibacterium smegmatis, Basonym Mycobacterium smegmatis, Expresses Morphological Phenotypes Much More Similar to Escherichia coli Than Mycobacterium tuberculosis in Quantitative Structome Analysis and CryoTEM Examination. Front Microbiol 2018; 9:1992. [PMID: 30258411 PMCID: PMC6145149 DOI: 10.3389/fmicb.2018.01992] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Accepted: 08/07/2018] [Indexed: 01/05/2023] Open
Abstract
A series of structome analyses, that is, quantitative and three-dimensional structural analysis of a whole cell at the electron microscopic level, have already been achieved individually in Exophiala dermatitidis, Saccharomyces cerevisiae, Mycobacterium tuberculosis, Myojin spiral bacteria, and Escherichia coli. In these analyses, sample cells were processed through cryo-fixation and rapid freeze-substitution, resulting in the exquisite preservation of ultrastructures on the serial ultrathin sections examined by transmission electron microscopy. In this paper, structome analysis of non pathogenic Mycolicibacterium smegmatis, basonym Mycobacterium smegmatis, was performed. As M. smegmatis has often been used in molecular biological experiments and experimental tuberculosis as a substitute of highly pathogenic M. tuberculosis, it has been a task to compare two species in the same genus, Mycobacterium, by structome analysis. Seven M. smegmatis cells cut into serial ultrathin sections, and, totally, 220 serial ultrathin sections were examined by transmission electron microscopy. Cell profiles were measured, including cell length, diameter of cell and cytoplasm, surface area of outer membrane and plasma membrane, volume of whole cell, periplasm, and cytoplasm, and total ribosome number and density per 0.1 fl cytoplasm. These data are based on direct measurement and enumeration of exquisitely preserved single cell structures in the transmission electron microscopy images, and are not based on the calculation or assumptions from biochemical or molecular biological indirect data. All measurements in M. smegmatis, except cell length, are significantly higher than those of M. tuberculosis. In addition, these data may explain the more rapid growth of M. smegmatis than M. tuberculosis and contribute to the understanding of their structural properties, which are substantially different from M. tuberculosis, relating to the expression of antigenicity, acid-fastness, and the mechanism of drug resistance in relation to the ratio of the targets to the corresponding drugs. In addition, data obtained from cryo-transmission electron microscopy examination were used to support the validity of structome analysis. Finally, our data strongly support the most recent establishment of the novel genus Mycolicibacterium, into which basonym Mycobacterium smegmatis has been classified.
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Affiliation(s)
- Hiroyuki Yamada
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Japan
| | | | - Yuriko Igarashi
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Japan
| | - Kinuyo Chikamatsu
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Japan
| | - Akio Aono
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Japan
| | - Yoshiro Murase
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Japan
| | - Yuta Morishige
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Japan
| | - Akiko Takaki
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Japan
| | - Hiroji Chibana
- Medical Mycology Research Center, Chiba University, Chiba, Japan
| | - Satoshi Mitarai
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Japan
- Department of Basic Mycobacteriology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
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Takeda K, Chikamatsu K, Igarashi Y, Morishige Y, Murase Y, Aono A, Yamada H, Takaki A, Mitarai S. Six species of nontuberculous mycobacteria carry non-identical 16S rRNA gene copies. J Microbiol Methods 2018; 155:34-36. [PMID: 30165088 DOI: 10.1016/j.mimet.2018.08.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 08/26/2018] [Indexed: 11/24/2022]
Abstract
Nontuberculous mycobacteria (NTM) can carry two or more 16S rRNA gene copies that are, in some instances, non-identical. In this study, we used a combined cloning and sequencing approach to analyze 16S rRNA gene sequences of six NTM species, Mycobacterium cosmeticum, M. pallens, M. hodleri, M. crocinum, M. flavescens, and M. xenopi. Our approach facilitated the identification of two distinct gene copies in each species. The two M. cosmeticum genes had a single nucleotide difference, whereas two nucleotide polymorphisms were identified in M. hodleri, M. flavescens, and M. xenopi. M. pallens had a difference in four nucleotides and M. crocinum - in 23 nucleotides. Thus, we showed that the six NTM species possess at least two non-identical 16S rRNA gene copies. The full-length sequences of the intraspecies 16S rRNA variants will facilitate NTM identification and sequence analysis of specimens or other samples.
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Affiliation(s)
- Keita Takeda
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, 3-1-24 Matsuyama, Kiyose, Tokyo 204-0022, Japan; Center for Pulmonary Diseases, National Hospital Organization Tokyo National Hospital, 3-1-1 Takeoka, Kiyose, Tokyo 204-8585, Japan; Department of Basic Mycobacteriology, Graduate School of Biomedical Science, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan.
| | - Kinuyo Chikamatsu
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, 3-1-24 Matsuyama, Kiyose, Tokyo 204-0022, Japan.
| | - Yuriko Igarashi
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, 3-1-24 Matsuyama, Kiyose, Tokyo 204-0022, Japan.
| | - Yuta Morishige
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, 3-1-24 Matsuyama, Kiyose, Tokyo 204-0022, Japan.
| | - Yoshiro Murase
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, 3-1-24 Matsuyama, Kiyose, Tokyo 204-0022, Japan.
| | - Akio Aono
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, 3-1-24 Matsuyama, Kiyose, Tokyo 204-0022, Japan
| | - Hiroyuki Yamada
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, 3-1-24 Matsuyama, Kiyose, Tokyo 204-0022, Japan.
| | - Akiko Takaki
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, 3-1-24 Matsuyama, Kiyose, Tokyo 204-0022, Japan.
| | - Satoshi Mitarai
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, 3-1-24 Matsuyama, Kiyose, Tokyo 204-0022, Japan; Department of Basic Mycobacteriology, Graduate School of Biomedical Science, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan.
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28
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Morimoto K, Aono A, Murase Y, Sekizuka T, Kurashima A, Takaki A, Sasaki Y, Igarashi Y, Chikamatsu K, Goto H, Yamada H, Kuroda M, Mitarai S. Prevention of aerosol isolation of nontuberculous mycobacterium from the patient's bathroom. ERJ Open Res 2018; 4:00150-2017. [PMID: 29977902 PMCID: PMC6028744 DOI: 10.1183/23120541.00150-2017] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Accepted: 05/29/2018] [Indexed: 12/04/2022] Open
Abstract
Recent clinical studies have revealed that reappearance of the same nontuberculous mycobacterium (NTM) infection is common after successful standard treatment [1, 2]. Using pulsed-field gel electrophoresis analysis, Wallaceet al. [1] found that ∼75% of Mycobacterium avium-intracellulare complex (MAC) isolates identified after successful treatment are the result of reinfection. According to a recent study conducted by Kohet al. [2] using repetitive sequence-based PCR analysis, all re-identified M. abscessus subsp. abscessus isolates had a unique genotype. Therefore, patients with NTM are exposed to large amounts of microbes in their daily lives, particularly in cases of reinfection. Reinfection of nontuberculous mycobacterium pulmonary disease may be caused by identical and not different genotypeshttp://ow.ly/62cH30krdpa
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Affiliation(s)
- Kozo Morimoto
- Division of Clinical Research, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan.,Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan.,Dept of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan.,Both authors contributed equally
| | - Akio Aono
- Dept of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan.,Both authors contributed equally
| | - Yoshiro Murase
- Dept of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Tsuyoshi Sekizuka
- Pathogen Genomics Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Atsuyuki Kurashima
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Akiko Takaki
- Dept of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Yuka Sasaki
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Yuriko Igarashi
- Dept of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Kinuyo Chikamatsu
- Dept of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Hajime Goto
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Hiroyuki Yamada
- Dept of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Makoto Kuroda
- Pathogen Genomics Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Satoshi Mitarai
- Dept of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
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Matsuda S, Suzuki S, Morimoto K, Aono A, Nishio K, Asakura T, Sasaki Y, Namkoong H, Nishimura T, Ogata H, Hasegawa N, Kurashima A, Ishii M, Tatsumi K, Mitarai S, Goto H. Mycobacterium triplex pulmonary disease with acquired macrolide resistance in immunocompetent patients. Clin Microbiol Infect 2018; 24:671-672. [PMID: 29309938 DOI: 10.1016/j.cmi.2017.12.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 12/25/2017] [Accepted: 12/26/2017] [Indexed: 11/26/2022]
Affiliation(s)
- S Matsuda
- Respiratory Disease Centre, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - S Suzuki
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - K Morimoto
- Respiratory Disease Centre, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan; Division of Clinical Research, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan.
| | - A Aono
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - K Nishio
- Department of Respiratory Medicine, Kawasaki Municipal Ida Hospital, Kanagawa, Japan
| | - T Asakura
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Y Sasaki
- Respiratory Disease Centre, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - H Namkoong
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - T Nishimura
- Health Centre, Keio University, Tokyo, Japan
| | - H Ogata
- Respiratory Disease Centre, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - N Hasegawa
- Centre for Infectious Diseases and Infection Control, Keio University School of Medicine, Tokyo, Japan
| | - A Kurashima
- Respiratory Disease Centre, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - M Ishii
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - K Tatsumi
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - S Mitarai
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - H Goto
- Respiratory Disease Centre, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
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Yamada H, Yamaguchi M, Chikamatsu K, Aono A, Igarashi Y, Murase Y, Takaki A, Mitarai S. PB-07Three-dimensional Reconstruction of Mycobacteria and Escherichia coli Based on the Structome Analysis. Microscopy (Oxf) 2017. [DOI: 10.1093/jmicro/dfx108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Hiroyuki Yamada
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Anti-Tuberculosis Association, Kiyose, Japan, and
| | | | - Kinuyo Chikamatsu
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Anti-Tuberculosis Association, Kiyose, Japan, and
| | - Akio Aono
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Anti-Tuberculosis Association, Kiyose, Japan, and
| | - Yuriko Igarashi
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Anti-Tuberculosis Association, Kiyose, Japan, and
| | - Yoshiro Murase
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Anti-Tuberculosis Association, Kiyose, Japan, and
| | - Akiko Takaki
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Anti-Tuberculosis Association, Kiyose, Japan, and
| | - Satoshi Mitarai
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Anti-Tuberculosis Association, Kiyose, Japan, and
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31
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Yamada H, Yamaguchi M, Chikamatsu K, Aono A, Igarashi Y, Murase Y, Takaki A, Mitarai S. PB-03Variety of Single Cell Shape Property in Mycobacterial Species Examined with Cryo-TEM. Microscopy (Oxf) 2017. [DOI: 10.1093/jmicro/dfx104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Hiroyuki Yamada
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Tokyo, 204-8533, Japan, and
| | | | - Kinuyo Chikamatsu
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Tokyo, 204-8533, Japan, and
| | - Akio Aono
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Tokyo, 204-8533, Japan, and
| | - Yuriko Igarashi
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Tokyo, 204-8533, Japan, and
| | - Yoshiro Murase
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Tokyo, 204-8533, Japan, and
| | - Akiko Takaki
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Tokyo, 204-8533, Japan, and
| | - Satoshi Mitarai
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Tokyo, 204-8533, Japan, and
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Chikamatsu K, Aono A, Hata H, Igarashi Y, Takaki A, Yamada H, Sakashita K, Mitarai S. Evaluation of PyroMark Q24 pyrosequencing as a method for the identification of mycobacteria. Diagn Microbiol Infect Dis 2017; 90:35-39. [PMID: 29107416 DOI: 10.1016/j.diagmicrobio.2017.09.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 09/07/2017] [Accepted: 09/07/2017] [Indexed: 11/16/2022]
Abstract
We evaluated PyroMark Q24 (QIAGEN) pyrosequencing as a method for the identification of mycobacteria, with potential application in clinical practice. Sequence data from the hypervariable region A of the 16S rRNA gene (43 and 35bp sequences) were obtained using PyroMark Q24, and a similarity search was performed automatically with PyroMark IdentiFire software. Of the 148 mycobacterial type strains tested, 138 (93.2%) were accurately identified to single or clade species level, including complex level. From the remaining 10 strains, 3 (Mycobacterium gilvum, Mycobacterium goodi, and Mycobacterium thermoresistible) showed poor sequencing quality of homopolymers. For 6 other strains (Mycobacterium cosmeticum, Mycobacterium flavescens, Mycobacterium pallens, Mycobacterium hodleri, Mycobacterium xenopi, and Mycobacterium crocinum), the sequences were unreadable from the middle, and Sanger sequencing indicated biallelic site. Finally, a 40bp sequence for Mycobacterium gordonae could not be obtained despite repeated attempts. PyroMark Q24 provided accurate identification of multiple mycobacterial strains isolated from common clinical settings, but additional gene sequencing is required to distinguish species identified as a group or complex.
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Affiliation(s)
- Kinuyo Chikamatsu
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Japan.
| | - Akio Aono
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Japan
| | - Hiroyuki Hata
- Kyokuto Pharmaceutical Industrial Co., Ltd., Tokyo, Japan
| | - Yuriko Igarashi
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Japan
| | - Akiko Takaki
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Japan
| | - Hiroyuki Yamada
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Japan
| | - Kentaro Sakashita
- Basic Mycobacteriology, Graduate School of Biomedical Science, Nagasaki University, Nagasaki, Japan
| | - Satoshi Mitarai
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Japan; Basic Mycobacteriology, Graduate School of Biomedical Science, Nagasaki University, Nagasaki, Japan
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33
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Igarashi Y, Chikamatsu K, Aono A, Yi L, Yamada H, Takaki A, Mitarai S. Laboratory evaluation of the Anyplex™ II MTB/MDR and MTB/XDR tests based on multiplex real-time PCR and melting-temperature analysis to identify Mycobacterium tuberculosis and drug resistance. Diagn Microbiol Infect Dis 2017; 89:276-281. [PMID: 28974394 DOI: 10.1016/j.diagmicrobio.2017.08.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 08/18/2017] [Accepted: 08/19/2017] [Indexed: 10/19/2022]
Abstract
We evaluated the performance of two multiplex, real-time PCR tests (Anyplex II MTB/MDR and MTB/XDR; Seegene, Seoul, Korea), designed to detect the Mycobacterium tuberculosis complex (MTC) and drug-resistance mutations associated with isoniazid, rifampicin, fluoroquinolones, and second-line injectable drugs. We analyzed 122 clinical isolates with the Anyplex II MTB/MDR test, 68 of which were also tested with the Anyplex II MTB/XDR test. The Anyplex II MTB/MDR and MTB/XDR tests showed the following respective sensitivities and specificities: 68.8% and 100% for detecting isoniazid resistance, 93.8% and 100% for rifampicin, 82.8% and 100% for levofloxacin, 75.0% and 100% for kanamycin, and 92.6% and 100% for MTC identification. These kits correctly identified 61.8% of multi-drug resistant M. tuberculosis isolates and 64.7% of extensively drug-resistant M. tuberculosis isolates, and enabled semi-automatic detection of drug-resistant MTC in 3 hours. The Anyplex II kits could be useful as rule-in tests for detecting MTC and drug resistance.
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Affiliation(s)
- Yuriko Igarashi
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association (JATA), Tokyo, Japan.
| | - Kinuyo Chikamatsu
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association (JATA), Tokyo, Japan
| | - Akio Aono
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association (JATA), Tokyo, Japan
| | - Lina Yi
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association (JATA), Tokyo, Japan; Department of Respiratory and Internal Medicine, Fukujuji Hospital, Tokyo, Japan; Department of Basic Mycobacteriology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Hiroyuki Yamada
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association (JATA), Tokyo, Japan
| | - Akiko Takaki
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association (JATA), Tokyo, Japan
| | - Satoshi Mitarai
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association (JATA), Tokyo, Japan; Department of Basic Mycobacteriology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
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Yi L, Aono A, Chikamatsu K, Igarashi Y, Yamada H, Takaki A, Mitarai S. In vitro activity of sitafloxacin against Mycobacterium tuberculosis with gyrA/B mutations isolated in Japan. J Med Microbiol 2017; 66:770-776. [PMID: 28598311 DOI: 10.1099/jmm.0.000493] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Purpose. Sitafloxacin (SFX) is a new fluoroquinolone (FQ) that has shown a strong bactericidal effect against Mycobacterium tuberculosis (Mtb) in vitro. However, data on SFX efficacy against Mtb with gyrA/B mutations and its epidemiological cut-off (ECOFF) value remain limited. Therefore, we evaluated and compared the in vitro activity of SFX against gyrA/B-mutant Mtb to that of moxifloxacin (MFX), levofloxacin (LFX) and ciprofloxacin (CFX), and determined the ECOFF for SFX.Methodology. A total of 109 clinical Mtb isolates, including 73 multidrug-resistant (MDR) isolates, were subjected to minimum inhibitory concentration (MIC) analysis in oleic-albumin-dextrose-catalase (OADC)-supplemented Middlebrook 7H9 medium. Our results showed that SFX had lower cumulative MIC than MFX, LFX and CFX. Furthermore, we performed direct DNA sequencing of the quinolone-resistance-determining regions (QRDRs).Results. We identified the following mutations: D94G, D94A, A90V, D94H, D94N and G88A in gyrA; and A543V, A543T, E540D, R485C, D500A, I552S and D577A in gyrB. Based on our results, an ECOFF of 0.125 µg ml-1 was proposed for SFX. With this ECOFF, 15 % of LFX-resistant isolates with MIC ≥2 µg ml-1 were susceptible to SFX.Conclusion. SFX had the lowest cumulative MIC and a relatively low ECOFF value against Mtb, indicating that SFX was not only more effective against gyrA-mutant isolates, but also MDR isolates in Japan.
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Affiliation(s)
- Lina Yi
- Department of Basic Mycobacteriology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan.,Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Japan.,Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Kiyose, Japan
| | - Akio Aono
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Japan
| | - Kinuyo Chikamatsu
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Japan
| | - Yuriko Igarashi
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Japan
| | - Hiroyuki Yamada
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Japan
| | - Akiko Takaki
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Japan
| | - Satoshi Mitarai
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Japan.,Department of Basic Mycobacteriology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
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Mitarai S, Yamada H, Aono A, Chikamatsu K, Higuchi T, Igarashi Y, Takaki A. [EXTERNAL QUALITY ASSESSMENT OF ANTI-TUBERCULOSIS DRUG SUSCEPTIBILITY TESTING FOR DIAGNOSING EXTENSIVELY DRUG-RESISTANT MYCOBACTERIUM TUBERCULOSIS]. Kekkaku 2016; 91:717-725. [PMID: 30648375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
[Objective] The infectious disease control law has been amended in May 2015, and the category definition of Mycobacterium tuberculosis as infectious pathogen has been changed, following the definition of extensively drug-resistant M.tuberculosis (XDR-TB) by World Health Organization. To assess the diagnostic capacity of XDR-TB, we conducted an external quality assessment (EQA) for the anti-tuberculosis drug susceptibility testing (DST). [Method] A total of 10 M.tuberculosis strains with known drug susceptibility were sent to each participating laboratory. The drugs assessed were isoniazid (INH), rifampicin (RFP), streptomycin (SM), ethambutol (EB), levofloxacin (LVFX), and kanamycin (KM). DST was performed using each routine method(s), and the results were compared with the judicial diagnoses. The sensitivity, specificity, overall agreement (effi- ciency) and kappa coefficient were calculated for each drug tested. In addition, the diagnostic accuracy of multidrug-resis- tant M. tuberculosis (MDR-TB) and XDR-TB was assessed. [Results] A total of 88 institutes including 67 hospitals, 16 commercial laboratories, and 5 public health laboratories par- ticipated in the EQA. With 2 laboratories submitting 2 sets of results, a total of 90 independent data sets were analyzed. As for INH, RFP and LVFX, the efficiency was over 95%, but we found two strains each for SM, EB and KM with the efficiency less than 95%. Especially, strain 1 and strain 2 showed efficiency of 72.2% and 71.1% to SM, respectively. This error was mainly found in a certain test kit. If we consider the passing score as showing ≥95 % sensitivity and specificity both to INH and RFP, the diagnostic accuracy of MDR-TB was 92.2% (83/90) in this study. With the same criteria to INH, RFP, LVFX and KM, that of XDR-TB was 79.7% (63/79). [Discussion] The diagnostic capacity of XDR-TB was not sufficient in the current study. Good case management and pathogen control requires higher accuracy. The government may need to conduct a constant EQA and relevant remedial actions.
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Yamada H, Chikamatsu K, Aono A, Yi L, Igarashi Y, Takaki A, Mitarai S. PB-14Comparison of electron microscopical quantitative data between two mycobacterial species. Microscopy (Oxf) 2016. [DOI: 10.1093/jmicro/dfw092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Chikamatsu K, Igarashi Y, Aono A, Yamada H, Takaki A, Mitarai S. [SPECIFICITY EVALUATION OF TRCReady® MTB AND TRCReady® MAC FOR IDENTIFYING MYCOBACTERIUM TUBERCULOSIS COMPLEX, MYCOBACTERIUM AVIUM AND MYCOBACTERIUM INTRACELLULARE]. Kekkaku 2016; 91:623-629. [PMID: 30646447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
[Objective] To evaluate the specificity of TRC- Ready® MTB and TRCReady® MAC (Tosoh Bioscience, Japan) for identifying M.tubercidosis complex (MTC), M.avium and M. intracellulare. [Method] We tested TRCReady® MTB and TRCReady® MAC using TRCReady®-80 (Tosoh Bioscience, Japan), which is an automated nucleic amplification test instrument, with 151 Mycobacterium species (4 MTC and 147 Non-tuberculosis Mycobacterium (NTM) type strains). [Results] The specificity of TRCReady® MTB was 100%, however, TkCReady® MAC misidentified a total of six NTMs, M.arosiense, M.chimaera, M.colombiense, M.marseillense, M. vulneris and M.yongonense, as M. intracellulare. Then, the specificity for TRCReady® MAC was 96.0% (145/151). [Discussion] TRCReady® MTB and TRCReady® MAC are highly specific for identifying MTC, M.avium and M. intracellulare. Six NTM species which have been rarely isolated in Japan showed false-positive results as M.intra- celludare. However, when a sample was identified as M.in- tracellulare, the phenotypic characteristics like colony mor- phology would be carefully examined.
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Inagaki K, Mizutani M, Nagahara Y, Asano M, Masamoto D, Sawada O, Aono A, Chikamatsu K, Mitarai S. Successful Treatment of Peritoneal Dialysis-related Peritonitis due to Mycobacterium iranicum. Intern Med 2016; 55:1929-31. [PMID: 27432106 DOI: 10.2169/internalmedicine.55.5219] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
A 68-year-old man on peritoneal dialysis (PD) was hospitalized with the clinical picture of peritonitis. The patient was diagnosed with peritonitis caused by nontuberculous mycobacteria (NTM) according to positive Ziehl-Neelsen staining and negative Mycobacterium tuberculosis polymerase chain reaction results. Oral levofloxacin and clarithromycin, and later intraperitoneal imipenem were started. According to the anti-NTM susceptibility test results, oral minocycline was administered. The patient was treated for 6 months. He recovered without PD catheter removal; thus, PD was successfully continued. A genetic analysis identified the isolate as Mycobacterium iranicum. This is the first report of PD-related peritonitis caused by M. iranicum.
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Affiliation(s)
- Koji Inagaki
- Department of Nephrology, Handa City Hospital, Japan
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Takeda K, Ohshima N, Nagai H, Sato R, Ando T, Kusaka K, Kawashima M, Masuda K, Matsui H, Aono A, Chikamatsu K, Mitarai S, Ohta K. Six Cases of Pulmonary Mycobacterium shinjukuense Infection at a Single Hospital. Intern Med 2016; 55:787-91. [PMID: 27041166 DOI: 10.2169/internalmedicine.55.5460] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Mycobacterium shinjukuense lung disease was diagnosed in 3 men and 3 women [mean age: 77.0±12.2 (57-93) years]. On imaging, 3 patients with previous pulmonary tuberculosis exhibited a fibrocavitary pattern, while the other 3 patients showed nodular bronchiectasis. A test with a tuberculosis rRNA identification kit (TRC Rapid(®) M. TB) was falsely positive for M. tuberculosis due to DNA sequence similarity in 16SrRNA. M. shinjukuense was identified by the gene sequences of rpoB, 16S rRNA, and hsp65. The symptoms and imaging findings of most of the patients have improved with chemotherapy with low minimum inhibitory concentrations of anti-tuberculosis drugs.
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Affiliation(s)
- Keita Takeda
- Center for Pulmonary Diseases, National Hospital Organization Tokyo National Hospital, Japan
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Yamada H, Yamaguchi M, Chikamatsu K, Aono A, Igarashi Y, Lina Y, Sakashita K, Ohfuji T, Takaki A, Mitarai S. C3-P-06Structome analysis of freeze-substituted virulent Mycobacterium tuberculosisbased on direct enumeration of the serial ultrathin sections with TEM. Microscopy (Oxf) 2015. [DOI: 10.1093/jmicro/dfv309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Chikamatsu K, Aono A, Kato T, Takaki A, Yamada H, Sasaki Y, Izumi K, Yi L, Mitarai S. COBAS® TaqMan® MTB, smear positivity grade and MGIT culture; correlation analyses of three methods for bacillary quantification. J Infect Chemother 2015; 22:19-23. [PMID: 26527538 DOI: 10.1016/j.jiac.2015.09.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Accepted: 09/17/2015] [Indexed: 12/15/2022]
Abstract
We investigated the correlation between the cycle threshold (Ct) value of the COBAS(®) TaqMan(®) MTB (TaqMan MTB), the mycobacterial smear positivity grade, and the time to detection (TTD) in the Mycobacteria Growth Indicator Tube (MGIT) for quantification of Mycobacterium tuberculosis (MTB). For 57 sputum samples, significant correlations were observed between the Ct value, the smear positivity grade, and the MGIT TTD (Spearman's rank correlation coefficient: r(s) = -0.940, P < 0.001 and Pearson's correlation coefficient: r(p) = 0.737, P < 0.001). In addition, a correlation was observed between the number of bacteria estimated based on the smear positivity grade and the number of MTB bacilli calculated by the Ct value (r(s) = 0.930, P < 0.001). This study has demonstrated the possible estimation of the smear positivity grade and MGIT TTD using the Ct value of TaqMan MTB, which is based on a real-time PCR system, for diagnostic samples.
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Affiliation(s)
- Kinuyo Chikamatsu
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Japan.
| | - Akio Aono
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Japan
| | - Tomoko Kato
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Japan
| | - Akiko Takaki
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Japan
| | - Hiroyuki Yamada
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Japan
| | - Yuka Sasaki
- Department of Respiratory Medicine, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Kiyose, Japan
| | - Kiyohiko Izumi
- Department of Epidemiology and Clinical Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Japan; Department of Basic Mycobacteriology, Graduate School of Biomedical Science, Nagasaki University, Nagasaki, Japan
| | - Lina Yi
- Department of Respiratory Medicine, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Kiyose, Japan; Department of Basic Mycobacteriology, Graduate School of Biomedical Science, Nagasaki University, Nagasaki, Japan
| | - Satoshi Mitarai
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Japan; Department of Basic Mycobacteriology, Graduate School of Biomedical Science, Nagasaki University, Nagasaki, Japan
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Yoshimatsu S, Kato-Matsumaru T, Aono A, Chikamatsu K, Yamada H, Mitarai S. Factors contribute to efficiency of specimen concentration of Mycobacterium tuberculosis by centrifugation and magnetic beads. Int J Mycobacteriol 2015; 4:245-9. [PMID: 27649873 DOI: 10.1016/j.ijmyco.2015.05.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Revised: 05/25/2015] [Accepted: 05/26/2015] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND A concentration of specimen is recommended for the effective recovery of Mycobacterium tuberculosis (MTB), but the bacteriological efficiency is not well evaluated. The present study evaluated the factors contributing to concentration efficiency of centrifugation and bead-based technique (TB-Beads; Microsens, UK) to recover MTB by using simple in vitro specimens. METHODS Four specimens were prepared (6.5×10(3); 8.1×10(4); 7.9×10(5); and 6.4×10(6)cfu/mL) of different concentrations with or without 5×10(4) of THP-1 cells (RIKEN BRC, Japan). Specimens were subjected to centrifugation at 2000, 3000, and 4000g for 15min, and to TB-Beads. The concentration and recovery rate were calculated to evaluate the efficiency of each method. RESULTS The specimens containing a higher number of bacteria and THP-1 cells had a tendency to yield a higher concentration and recovery rate (p=0.001-0.083). MTB was recovered more efficiently with THP-1 cells from the 6.5×10(3)cfu/mL specimen by centrifugation (p⩽0.001) than without them; 24.7-54.4% of MTB were recovered with THP-1 cells by centrifugation at 3000g for 15min, while the recovery using TB-Beads was a maximum of 12.7%. CONCLUSIONS The efficiency of centrifugation depends on the bacterial density and the co-existence of THP-1 cells. The efficiency of TB-Beads was not as high as centrifugation.
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Affiliation(s)
- Shoji Yoshimatsu
- Department of Epidemiology and Clinical Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Japan.
| | - Tomoko Kato-Matsumaru
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Japan; Department of Basic Mycobacteriosis, Nagasaki University Graduate School of Biomedical Sciences, Japan
| | - Akio Aono
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Japan
| | - Kinuyo Chikamatsu
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Japan
| | - Hiroyuki Yamada
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Japan
| | - Satoshi Mitarai
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Japan; Department of Basic Mycobacteriosis, Nagasaki University Graduate School of Biomedical Sciences, Japan
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Fukui S, Sekiya N, Takizawa Y, Morioka H, Kato H, Aono A, Chikamatsu K, Mitarai S, Kobayashi S, Kamei S, Setoguchi K. Disseminated Mycobacterium abscessus Infection Following Septic Arthritis: A Case Report and Review of the Literature. Medicine (Baltimore) 2015; 94:e861. [PMID: 26020393 PMCID: PMC4616402 DOI: 10.1097/md.0000000000000861] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Mycobacterium abscessus is a rapidly growing mycobacterium found mainly in patients with respiratory or cutaneous infections, but it rarely causes disseminated infections. Little is known about the clinical characteristics, treatment, and prognosis of disseminated M abscessus infection. A 75-year-old Japanese woman who had been treated for 17 years with a corticosteroid for antisynthetase syndrome with antithreonyl-tRNA synthetase antibody developed swelling of her right elbow. X-ray of her right elbow joint showed osteolysis, and magnetic resonance imaging revealed fluid in her right elbow joint. M abscessus grew in joint fluid and blood cultures. She was diagnosed with a disseminated M abscessus infection following septic arthritis. Antimicrobial treatment by clarithromycin, amikacin, and imipenem/cilastatin combined with surgical debridement was administered. Although blood and joint fluid cultures became negative 1 week later, the patient died at 6 weeks from starting antimicrobial treatment. We reviewed 34 cases of disseminated M abscessus infections from the literature. Most of the patients had immunosuppressive backgrounds such as transplantation, use of immunosuppressive agents, hematological malignancy, and end stage renal disease. The duration from onset of symptoms to diagnosis was over 3 months in half of the cases. All fatal cases had positive blood cultures or use of immunosuppressive agents. Clinicians should bear in mind that mycobacterial infections including M abscessus are one of the differential diagnoses in patients with subacute arthritis and soft tissue infections.
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Affiliation(s)
- Shoichi Fukui
- From the Department of Rheumatology (SF, YT, S Kobayashi, S Kamei, KS); Clinical Laboratory (NS, HM, HK), Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Tokyo; and Department of Mycobacterium Reference and Research (AA, KC, SM), The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Japan
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Yamada H, Yamaguchi M, Chikamatsu K, Aono A, Mitarai S. Structome analysis of virulent Mycobacterium tuberculosis, which survives with only 700 ribosomes per 0.1 fl of cytoplasm. PLoS One 2015; 10:e0117109. [PMID: 25629354 PMCID: PMC4309607 DOI: 10.1371/journal.pone.0117109] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Accepted: 12/19/2014] [Indexed: 11/23/2022] Open
Abstract
We previously reported the exquisite preservation of the ultrastructures of virulent Mycobacterium tuberculosis cells processed through cryofixation and rapid freeze substitution. Here, we report the “structome” analysis (i.e., the quantitative three-dimensional structural analysis of a whole cell at the electron microscopic level) of virulent M. tuberculosis using serial ultrathin sections prepared after cryofixation and rapid freeze substitution and analyzed by transmission electron microscopy. Five M. tuberculosis cells, which were contained in the serial ultrathin cross sections encompassing from one end to the other, were cut into 24, 36, 69, 55, and 63 serial ultrathin sections, respectively. On average, the cells were 2.71 ± 1.05 μm in length, and the average diameter of the cell was 0.345 ± 0.029 μm. The outer membrane and plasma membrane surface areas were 3.04 ± 1.33 μm2 and 2.67 ± 1.19 μm2, respectively. The cell, outer membrane, periplasm, plasma membrane, and cytoplasm volumes were 0.293 ± 0.113 fl (= μm3), 0.006 ± 0.003 fl, 0.060 ± 0.021 fl, 0.019 ± 0.008 fl, and 0.210 ± 0.091 fl, respectively. The average total ribosome number was 1,672 ± 568, and the ribosome density was 716.5 ± 171.4/0.1 fl. This is the first report of a structome analysis of M. tuberculosis cells prepared as serial ultrathin sections following cryofixation and rapid freeze substitution and examined by transmission electron microscopy. These data are based on the direct measurement and enumeration of exquisitely preserved single-cell structures in transmission electron microscopy images rather than calculations or assumptions from indirect biochemical or molecular biological data. In addition, these data may explain the slow growth of M. tuberculosis and enhance understanding of the structural properties related to the expression of antigenicity, acid-fastness, and the mechanism of drug resistance, particularly in regard to the ratio of target to drug concentrations.
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Affiliation(s)
- Hiroyuki Yamada
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Tokyo, Japan
- * E-mail:
| | | | - Kinuyo Chikamatsu
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Tokyo, Japan
| | - Akio Aono
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Tokyo, Japan
| | - Satoshi Mitarai
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Tokyo, Japan
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Kobayashi M, Aoki S, Saito T, Aono A, Mitarai S. 1696Total-deletion mutation of pncA as a new mechanism of pyrazinamide resistance in Mycobacterium tuberculosis - The first report from Japan. Open Forum Infect Dis 2014. [PMCID: PMC5782009 DOI: 10.1093/ofid/ofu052.1242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Masahiro Kobayashi
- Department of Clinical Laboratory, National Hospital Organization Ibarakihigashi Hospital, Ibaraki, Japan
| | - Sadao Aoki
- Department of Clinical Laboratory, National Hospital Organization Ibarakihigashi Hospital, Ibaraki, Japan
| | - Takefumi Saito
- Department of Internal Medicine, National Hospital Organization Ibarakihigashi Hospital, Ibaraki, Japan
| | - Akio Aono
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Satoshi Mitarai
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
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Nishiyama H, Aono A, Sugamoto T, Mizuno K, Chikamatsu K, Yamada H, Mitarai S. Optimization of the microscopic observation drug susceptibility assay for four first-line drugs using Mycobacterium tuberculosis reference strains and clinical isolates. J Microbiol Methods 2014; 101:44-8. [PMID: 24717372 DOI: 10.1016/j.mimet.2014.03.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2014] [Revised: 03/27/2014] [Accepted: 03/28/2014] [Indexed: 10/25/2022]
Abstract
OBJECTIVE The aim of this study is to determine the appropriate cut-off value and turnaround time of the microscopic observation drug susceptibility assay (MODS) for isoniazid (INH), rifampicin (RMP), streptomycin (STR), and ethambutol (EMB). DESIGN A total of 39 Mycobacterium tuberculosis strains with confirmed drug susceptibility (reference strains) were tested with a range of drug concentrations to determine the optimal cut-off values for INH, RMP, STR, and EMB by MODS. Standard drug susceptibility testing (DST) results were evaluated relative to the Löwenstein-Jensen (L-J) proportion method. Following which, the performance of MODS was evaluated again using 36 sputum samples from patients with tuberculosis (TB) using the cut-off values determined in the aforementioned process. RESULTS With 39 reference strains, DST identified the following cut-off values: 0.8μg/ml INH (sensitivity, 96.0%; specificity, 92.9%), 2.0μg/ml RMP (sensitivity, 100%; specificity, 95.5%), 4.0μg/ml STR (sensitivity, 90.5%; specificity, 93.8%), and 4.0μg/ml EMB (sensitivity, 100%; specificity, 91.7%). When these cut-off values were used to analyze the 36 clinical isolates, the sensitivity and specificity of MODS were 100% and 93.1% for INH, 100% and 93.8% for RMP, 87.5% and 96.4% for STR, and 100% and 88.2% for EMB, respectively. The turnaround time for these clinical specimens was 9.0days by MODS (95% CI: 5.3-12.7), compared with 11.7days (95% CI: 9.5-13.9) for smear negative specimens. CONCLUSION Our study identified the optimal cut-off values of the four first-line drugs for MODS based on a wide concentration range. With the optimal cut-off values determined in this study, MODS showed high discriminatory efficiency for DST. This study also demonstrated that MODS is useful for rapid diagnosis of drug-resistant TB even for a smear negative specimen, despite the fact that it generally uses smear positive specimens as direct DST.
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Affiliation(s)
- Hiroyuki Nishiyama
- Department of International Cooperation, Japan Anti-Tuberculosis Association, 3-1-24 Matsuyama Kiyose-shi, Tokyo 204-8533, Japan; Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, 3-1-24 Matsuyama Kiyose-shi, Tokyo 204-8533, Japan.
| | - Akio Aono
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, 3-1-24 Matsuyama Kiyose-shi, Tokyo 204-8533, Japan
| | - Tetsuhiro Sugamoto
- Department of International Cooperation, Japan Anti-Tuberculosis Association, 3-1-24 Matsuyama Kiyose-shi, Tokyo 204-8533, Japan
| | - Kazue Mizuno
- Department of Clinical Microbiology, Fukujuji Hospital, Japan Anti-Tuberculosis Association, 3-1-24 Matsuyama Kiyose-shi, Tokyo 204-8533, Japan
| | - Kinuyo Chikamatsu
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, 3-1-24 Matsuyama Kiyose-shi, Tokyo 204-8533, Japan
| | - Hiroyuki Yamada
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, 3-1-24 Matsuyama Kiyose-shi, Tokyo 204-8533, Japan
| | - Satoshi Mitarai
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, 3-1-24 Matsuyama Kiyose-shi, Tokyo 204-8533, Japan
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Chikamatsu K, Aono A, Yamada H, Sugamoto T, Kato T, Kazumi Y, Tamai K, Yanagisawa H, Mitarai S. Comparative evaluation of three immunochromatographic identification tests for culture confirmation of Mycobacterium tuberculosis complex. BMC Infect Dis 2014; 14:54. [PMID: 24484470 PMCID: PMC3916065 DOI: 10.1186/1471-2334-14-54] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Accepted: 01/27/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The rapid identification of acid-fast bacilli recovered from patient specimens as Mycobacterium tuberculosis complex (MTC) is critically important for accurate diagnosis and treatment. A thin-layer immunochromatographic (TLC) assay using anti-MPB64 or anti-MPT64 monoclonal antibodies was developed to discriminate between MTC and non-tuberculosis mycobacteria (NTM). Capilia TB-Neo, which is the improved version of Capilia TB, is recently developed and needs to be evaluated. METHODS Capilia TB-Neo was evaluated by using reference strains including 96 Mycobacterium species (4 MTC and 92 NTM) and 3 other bacterial genera, and clinical isolates (500 MTC and 90 NTM isolates). M. tuberculosis isolates tested negative by Capilia TB-Neo were sequenced for mpt64 gene. RESULTS Capilia TB-Neo showed 100% agreement to a subset of reference strains. Non-specific reaction to M. marinum was not observed. The sensitivity and specificity of Capilia TB-Neo to the clinical isolates were 99.4% (99.6% for M. tuberculosis, excluding M. bovis BCG) for clinical MTC isolates and 100% for NTM isolates tested, respectively. Two M. tuberculosis isolates tested negative by Capilia TB-Neo: one harbored a 63-bp deletion in the mpt64 gene and the other possessed a 3,659-bp deletion from Rv1977 to Rv1981c, a region including the entire mpt64 gene. CONCLUSIONS Capilia TB-Neo is a simple, rapid and highly sensitive test for identifying MTC, and showed better specificity than Capilia TB. However, Capilia TB-Neo still showed false-negative results with mpt64 mutations. The limitation should be recognized for clinical use.
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Affiliation(s)
- Kinuyo Chikamatsu
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Tokyo 204-8533, Japan.
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Chikamatsu K, Aono A, Yamada H, Kato T, Mitarai S. [Evaluation of the use of SPEED-OLIGO Mycobacteria for identification of Mycobacterium species]. Kekkaku 2014; 89:45-50. [PMID: 24716358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
OBJECTIVE To evaluate the use of SPEED-OLIGO MYCOBACTERIA (Vircell, Spain) in identifying Mycobacterium species. METHOD We examined 15 type or reference strains of mycobacteria (M. tuberculosis H37Rv and 14 non-tuberculosis mycobacteria), 48 clinical isolates, and 17 AFB-positive sputa by using SPEED-OLIGO MYCOBACTERIA, and compared the results with those obtained using other referral methods available for species identification. RESULT SPEED-OLIGO MYCOBACTERIA yielded favorable results in 80.0%, 91.7%, and 88.2% of the cases of the tested type/reference strains, clinical isolates, and clinical samples, respectively. However, the type/reference strains M. celatum, M. fortuitum subsp. fortuitum, and M. marinum, and the clinical isolates M. intermedium, M. marinum, and M. szulgai were misidentified when SPEED-OLIGO MYCOBACTERIA was used. DISCUSSION SPEED-OLIGO MYCOBACTERIA can facilitate the rapid identification of Mycobacterium species mainly because of its short turn-around time and simple procedures. However, the accuracy of this method remains unsatisfactory.
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Yamada H, Chikamatsu K, Aono A, Mitarai S. Pre-fixation of virulent Mycobacterium tuberculosis with glutaraldehyde preserves exquisite ultrastructure on transmission electron microscopy through cryofixation and freeze-substitution with osmium-acetone at ultralow temperature. J Microbiol Methods 2013; 96:50-5. [PMID: 24200708 DOI: 10.1016/j.mimet.2013.10.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Revised: 10/22/2013] [Accepted: 10/24/2013] [Indexed: 10/26/2022]
Abstract
Sample preparations for transmission electron microscopy of virulent Mycobacterium tuberculosis are usually performed with chemical fixation using glutaraldehyde (GA) in a biosafety area followed by post-fixation with aqueous osmium tetroxide (OT) in a conventional laboratory outside the biosafety area. Freeze-substitution with osmium-acetone (OA) at ultralow temperature (-85°C) has been shown to provide high quality final images and preserves cellular structures intact. However, some preparation procedures for freeze-substitution often require large fixed devices for freezing in a special laboratory. We have reported a novel freeze-substitution preparation method that can be performed using a portable device in a biosafety cabinet at biosafety level (BSL) 3 areas. Here, as a next step, we examined whether images obtained from rapid freeze-substitution (RFS) after fixation with glutaraldehyde (GA>RFS) are of comparable quality to those obtained using standard RFS. GA>RFS provided excellent preservation of mycobacterial cell ultrastructure, including visualization of cytoplasmic ribosomes, DNA fibers, and the outer membrane. The average number of ribosomes per cubic micrometer counted on RFS and GA>RFS was not significantly different (6987.8±2181.0 and 6888.9±1799.3, respectively). These values were higher, but not significantly so, than those obtained using conventional chemical fixation (5018.7±2511.3). This procedure may be useful for RFS preparation of unculturable mycobacteria strains or virulent strains isolated in laboratories that cannot perform RFS.
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Affiliation(s)
- Hiroyuki Yamada
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, 3-1-24 Matsuyama, Kiyose, Tokyo 204-8533, Japan.
| | - Kinuyo Chikamatsu
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, 3-1-24 Matsuyama, Kiyose, Tokyo 204-8533, Japan
| | - Akio Aono
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, 3-1-24 Matsuyama, Kiyose, Tokyo 204-8533, Japan
| | - Satoshi Mitarai
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, 3-1-24 Matsuyama, Kiyose, Tokyo 204-8533, Japan
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Ueyama M, Chikamatsu K, Aono A, Murase Y, Kuse N, Morimoto K, Okumura M, Yoshiyama T, Ogata H, Yoshimori K, Kudoh S, Azuma A, Gemma A, Mitarai S. Sub-speciation of Mycobacterium tuberculosis complex from tuberculosis patients in Japan. Tuberculosis (Edinb) 2013; 94:15-9. [PMID: 24183617 DOI: 10.1016/j.tube.2013.09.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Revised: 09/27/2013] [Accepted: 09/27/2013] [Indexed: 11/18/2022]
Abstract
Mycobacterium tuberculosis is the major causative agent of tuberculosis in humans. It is well known that Mycobacterium bovis and other species in the M. tuberculosis complex (MTC) can cause respiratory diseases as zoonosis. We analyzed the MTC isolates collected from tuberculosis patients from Japan in 2002 using a multiplex PCR system that detected cfp32, RD9 and RD12. A total of 970 MTC isolates that were representative of the tuberculosis cases throughout Japan, were examined using this method. As a result, 966 (99.6%) M. tuberculosis, two Mycobacterium africanum and two Mycobacterium canettii were identified using a multiplex PCR system, while no M. bovis was detected. Two isolates that lacked RD9 were initially considered to be M. canettii, but further analysis of the hsp65 sequence revealed them to be M. tuberculosis. Also two M. africanum were identified as M. tuberculosis using the -215 narG nucleotide polymorphism. Though PCR-linked methods have been used for a rapid differentiation of MTC and NTM, from our cases we suggest careful interpretation of RD based identification.
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Affiliation(s)
- Masako Ueyama
- Department of Respiratory Medicine, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Japan; Department of Pulmonary Medicine and Oncology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan.
| | - Kinuyo Chikamatsu
- Bacteriology Division, Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Japan
| | - Akio Aono
- Bacteriology Division, Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Japan
| | - Yoshiro Murase
- Molecular Epidemiology Division, Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Japan
| | - Naoyuki Kuse
- Department of Respiratory Medicine, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Japan; Department of Pulmonary Medicine and Oncology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Kozo Morimoto
- Department of Respiratory Medicine, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Japan; Department of Pulmonary Medicine and Oncology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Masao Okumura
- Department of Respiratory Medicine, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Japan; Department of Pulmonary Medicine and Oncology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Takashi Yoshiyama
- Department of Respiratory Medicine, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Japan
| | - Hideo Ogata
- Department of Respiratory Medicine, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Japan
| | - Kozo Yoshimori
- Department of Respiratory Medicine, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Japan; Department of Pulmonary Medicine and Oncology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Shoji Kudoh
- Department of Respiratory Medicine, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Japan
| | - Arata Azuma
- Department of Pulmonary Medicine and Oncology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Akihiko Gemma
- Department of Pulmonary Medicine and Oncology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Satoshi Mitarai
- Bacteriology Division, Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Japan
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