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Hasan NA, Davidson RM, Epperson LE, Kammlade SM, Beagle S, Levin AR, de Moura VC, Hunkins JJ, Weakly N, Sagel SD, Martiniano SL, Salfinger M, Daley CL, Nick JA, Strong M. Population Genomics and Inference of Mycobacterium avium Complex Clusters in Cystic Fibrosis Care Centers, United States. Emerg Infect Dis 2021; 27:2836-2846. [PMID: 34670648 PMCID: PMC8544995 DOI: 10.3201/eid2711.210124] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Mycobacterium avium complex (MAC) species constitute most mycobacteria infections in persons with cystic fibrosis (CF) in the United States, but little is known about their genomic diversity or transmission. During 2016–2020, we performed whole-genome sequencing on 364 MAC isolates from 186 persons with CF from 42 cystic fibrosis care centers (CFCCs) across 23 states. We compared isolate genomes to identify instances of shared strains between persons with CF. Among persons with multiple isolates sequenced, 15/56 (27%) had >1 MAC strain type. Genomic comparisons revealed 18 clusters of highly similar isolates; 8 of these clusters had patients who shared CFCCs, which included 27/186 (15%) persons with CF. We provide genomic evidence of highly similar MAC strains shared among patients at the same CFCCs. Polyclonal infections and high genetic similarity between MAC isolates are consistent with multiple modes of acquisition for persons with CF to acquire MAC infections.
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Kanegi R, Yasugi M, Nabetani T, Tanaka T, Wada Y, Hirai K, Sugiura K, Hatoya S. Clinical findings and treatment of disseminated 'Mycobacterium avium subspecies hominissuis' infection in a domestic cat. J Vet Med Sci 2019; 81:1842-1849. [PMID: 31666444 PMCID: PMC6943314 DOI: 10.1292/jvms.19-0492] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
A cat was referred because of diffuse parenchymal lung disease. Close examinations
revealed a swollen abdominal lymph node and multiple nodules of the liver.
Mycobacterium avium subspecies hominissuis infection
was confirmed by culture and single nucleotide polymorphism analysis of samples recovered
from the liver and bronchoalveolar lavage. After administration of combination antibiotics
for 6 months, culture results were negative. Though atonic seizures were observed during
the treatment, it disappeared after isoniazid discontinuation and pyridoxal phosphate
administration. On day 771 of illness, no clinical signs, lung diseases, or obvious
swelling of lymph nodes was observed. This is the first report to confirm
Mycobacterium avium subspecies hominissuis infection
in cats through gene analysis and to completely cure it with combination antibiotics.
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Affiliation(s)
- Ryoji Kanegi
- Veterinary Medical Center, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-oraikita, Izumisano, Osaka 598-8531, Japan
| | - Mayo Yasugi
- Department of Bioenvironmental Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-oraikita, Izumisano, Osaka 598-8531, Japan
| | - Tomoyo Nabetani
- Veterinary Medical Center, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-oraikita, Izumisano, Osaka 598-8531, Japan
| | - Toshiyuki Tanaka
- Veterinary Medical Center, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-oraikita, Izumisano, Osaka 598-8531, Japan
| | - Yusuke Wada
- Veterinary Medical Center, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-oraikita, Izumisano, Osaka 598-8531, Japan
| | - Kotaro Hirai
- Higashi Kishiwada Animal Hospital, 2-30-15 Habucho, Kishiwada, Osaka 596-0825, Japan
| | - Kikuya Sugiura
- Department of Advanced Pathobiology, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-oraikita, Izumisano, Osaka 598-8531, Japan
| | - Shingo Hatoya
- Department of Advanced Pathobiology, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-oraikita, Izumisano, Osaka 598-8531, Japan
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Rindi L, Lari N, Garzelli C. Virulence of Mycobacterium avium Subsp. hominissuis Human Isolates in an in vitro Macrophage Infection Model. Int J Mycobacteriol 2019. [PMID: 29516886 DOI: 10.4103/ijmy.ijmy_11_18] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Background Mycobacterium avium subsp. hominissuis (MAH) is an environmental opportunistic pathogen for humans and swine worldwide; in humans, the vast majority of MAH infections is due to strains belonging to specific genotypes, such as the internal transcribed spacer (ITS)-sequevars Mav-A and Mav-B that mostly cause pulmonary infections in elderly patients and severe disseminated infections in acquired immunodeficiency syndrome patients, respectively. To test whether the different types of infections in distinct patients' populations might reflect a different virulence of the infecting genotypes, MAH human isolates, genotyped by ITS sequencing and MIRU-VNTR minisatellite analysis, were studied for the capacity to infect and replicate in human macrophages in vitro. Methods Cultures of human peripheral blood mononuclear cells and phagocytic human leukemic cell line THP-1 cells were infected with each MAH isolate and intracellular colony-forming units (CFU) were determined. Results At 2 h after infection, i.e., immediately after cell entry, the numbers of intracellular bacteria did not differ between Mav-A and Mav-B organisms in both phagocytic cell types. At 5 days, Mav-A organisms, sharing highly related VNTR-MIRU genotypes, yielded numbers of intracellular CFUs significantly higher than Mav-B organisms in both phagocytic cell types. MIRU-VNTR-based minimum spanning tree analysis of the MAH isolates showed a divergent phylogenetic pathway of Mav-A and Mav-B organisms. Conclusion Mav-A and Mav-B sequevars might have evolved different pathogenetic properties that might account for their association with different human infections.
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Affiliation(s)
- Laura Rindi
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Nicoletta Lari
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Carlo Garzelli
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
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Madarame H, Saito M, Ogihara K, Ochiai H, Oba M, Omatsu T, Tsuyuki Y, Mizutani T. Mycobacterium avium subsp. hominissuis menigoencephalitis in a cat. Vet Microbiol 2017; 204:43-45. [PMID: 28532804 DOI: 10.1016/j.vetmic.2017.04.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2017] [Revised: 04/06/2017] [Accepted: 04/12/2017] [Indexed: 12/12/2022]
Abstract
A 33-month old, neutered female Abyssinian cat died. The cat had sudden onset of widespread neurologic signs about half a year after birth. Mycobacterium avium subsp. hominissuis (MAH) group was isolated and identified from the brain of a cat affected with pyogranulomatous meningoencephalitis. The central nervous system (CNS) was involved in the disseminated MAH infection. MAH infection should be considered in cats with neurologic signs in regard to zoonotic aspects. Comparatively, this is a first case of MAH infection observed in the brain in either humans or animals.
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Affiliation(s)
- Hiroo Madarame
- Laboratory of Small Animal Clinics, Veterinary Teaching Hospital, Azabu University, 1-17-71, Fuchinobe, Chuo, Sagamihara, Kanagawa, 252-5201, Japan.
| | - Miyoko Saito
- Laboratory of Surgery II, Department of Veterinary Medicine, Azabu University, 1-17-71, Fuchinobe, Chuo, Sagamihara, Kanagawa, 252-5201, Japan
| | - Kikumi Ogihara
- Laboratory of Pathology, School of Life and Environmental Science, Azabu University, 1-17-71, Fuchinobe, Chuo, Sagamihara, Kanagawa, 252-5201, Japan
| | - Hideharu Ochiai
- Research Institute of Biosciences, Azabu University, 1-17-71, Fuchinobe, Chuo, Sagamihara, Kanagawa, 252-5201, Japan
| | - Mami Oba
- Research and Education Center for Prevention of Global Infectious Diseases of Animals, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai, Fuchu, Tokyo, 183-8509, Japan
| | - Tsutomu Omatsu
- Research and Education Center for Prevention of Global Infectious Diseases of Animals, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai, Fuchu, Tokyo, 183-8509, Japan
| | - Yuzo Tsuyuki
- Sanritsu Zelkova Veterinary Laboratory, 2-5-8 Kuji, Takatsu-ku, Kawasaki, Kanagawa, 213-0032, Japan
| | - Tetsuya Mizutani
- Research and Education Center for Prevention of Global Infectious Diseases of Animals, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai, Fuchu, Tokyo, 183-8509, Japan
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Bruffaerts N, Vluggen C, Roupie V, Duytschaever L, Van den Poel C, Denoël J, Wattiez R, Letesson JJ, Fretin D, Rigouts L, Chapeira O, Mathys V, Saegerman C, Huygen K. Virulence and immunogenicity of genetically defined human and porcine isolates of M. avium subsp. hominissuis in an experimental mouse infection. PLoS One 2017; 12:e0171895. [PMID: 28182785 PMCID: PMC5300754 DOI: 10.1371/journal.pone.0171895] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 01/27/2017] [Indexed: 12/02/2022] Open
Abstract
Mycobacterium avium subsp. hominissuis (Mah) represents a health concern for humans and to a lesser extent for pigs, but its zoonotic potential remains elusive. Using multispacer sequence typing (MST) we previously identified 49 different genotypes of Mah among Belgian clinical and porcine isolates, with 5 MSTs shared by both hosts. Using experimental intranasal infection of BALB/c mice, we compared the virulence and immunogenicity of porcine and clinical human isolates with shared genotype or with a genotype only found in humans or pigs. Bacterial replication was monitored for 20 weeks in lungs, spleen and liver and mycobacteria specific spleen cell IFN-γ, IL-10 and IL-17 production as well as serum antibody responses were analyzed. Isolates varied in virulence, with human and porcine isolates sharing MST22 genotype showing a thousand fold higher bacterial replication in lungs and more dissemination to spleen and liver than the human and porcine MST91 isolates. Virulent MST22 type was also associated with progressive suppression of IFN-γ and IL-17 responses, and increased IL-10 production. Whole genome sequencing of the two virulent isolates with MST22 genotype and two avirulent isolates of genotype MST91 and comparison with two well-studied M. avium subsp. hominissuis reference strains i.e. Mah 104 and Mah TH135, identified in the two MST22 isolates nine specific virulence factors of the mammalian cell entry family, that were identical with Mah 104 strain. Despite the obvious limitations of the mouse model, a striking link of virulence and identity at the genome level of porcine and human isolates with the same multisequence type, for which no correlation of place of residence (humans) or farm of origin (pigs) was observed, seems to point to the existence in the environment of certain genotypes of Mah which may be more infectious both for humans and pigs than other genotypes.
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Affiliation(s)
- Nicolas Bruffaerts
- Service Immunology, Operational Direction Communicable and infectious Diseases, Scientific Institute of Public Health, Brussels, Belgium
- * E-mail: (NB); (KH)
| | - Christelle Vluggen
- Service Bacterial diseases, Operational Direction Communicable and infectious Diseases, Scientific Institute of Public Health, Brussels, Belgium
| | - Virginie Roupie
- Unit Bacterial Zoonoses of livestock, Operational Direction Bacterial Diseases, Veterinary and Agrochemical Research Centre, Brussels, Belgium
| | - Lucille Duytschaever
- Unit Bacterial Zoonoses of livestock, Operational Direction Bacterial Diseases, Veterinary and Agrochemical Research Centre, Brussels, Belgium
- Research Unit in Epidemiology and Risk Analysis applied to Veterinary Sciences, Fundamental and Applied Research for Animal and Health, Université of Liège, Liège, Belgium
| | - Christophe Van den Poel
- Service Immunology, Operational Direction Communicable and infectious Diseases, Scientific Institute of Public Health, Brussels, Belgium
| | - Joseph Denoël
- Research Unit in Epidemiology and Risk Analysis applied to Veterinary Sciences, Fundamental and Applied Research for Animal and Health, Université of Liège, Liège, Belgium
| | - Ruddy Wattiez
- Service Protéomique et Microbiologie, Université de Mons, Mons, Belgium
| | - Jean-Jacques Letesson
- Unité de Recherche en Biologie des Microorganismes, Université de Namur, Namur, Belgium
| | - David Fretin
- Unit Bacterial Zoonoses of livestock, Operational Direction Bacterial Diseases, Veterinary and Agrochemical Research Centre, Brussels, Belgium
| | - Leen Rigouts
- Department Biomedical Sciences, University of Antwerp, Antwerp, Belgium
- Unit Mycobacteriology, Institute of Tropical Medicine, Antwerp, Belgium
| | | | - Vanessa Mathys
- Service Bacterial diseases, Operational Direction Communicable and infectious Diseases, Scientific Institute of Public Health, Brussels, Belgium
| | - Claude Saegerman
- Research Unit in Epidemiology and Risk Analysis applied to Veterinary Sciences, Fundamental and Applied Research for Animal and Health, Université of Liège, Liège, Belgium
| | - Kris Huygen
- Service Immunology, Operational Direction Communicable and infectious Diseases, Scientific Institute of Public Health, Brussels, Belgium
- * E-mail: (NB); (KH)
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Uchiya KI, Tomida S, Nakagawa T, Asahi S, Nikai T, Ogawa K. Comparative genome analyses of Mycobacterium avium reveal genomic features of its subspecies and strains that cause progression of pulmonary disease. Sci Rep 2017; 7:39750. [PMID: 28045086 PMCID: PMC5206733 DOI: 10.1038/srep39750] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 11/28/2016] [Indexed: 11/25/2022] Open
Abstract
Pulmonary disease caused by nontuberculous mycobacteria (NTM) is increasing worldwide. Mycobacterium avium is the most clinically significant NTM species in humans and animals, and comprises four subspecies: M. avium subsp. avium (MAA), M. avium subsp. silvaticum (MAS), M. avium subsp. paratuberculosis (MAP), and M. avium subsp. hominissuis (MAH). To improve our understanding of the genetic landscape and diversity of M. avium and its role in disease, we performed a comparative genome analysis of 79 M. avium strains. Our analysis demonstrated that MAH is an open pan-genome species. Phylogenetic analysis based on single nucleotide variants showed that MAH had the highest degree of sequence variability among the subspecies, and MAH strains isolated in Japan and those isolated abroad possessed distinct phylogenetic features. Furthermore, MAP strains, MAS and MAA strains isolated from birds, and many MAH strains that cause the progression of pulmonary disease were grouped in each specific cluster. Comparative genome analysis revealed the presence of genetic elements specific to each lineage, which are thought to be acquired via horizontal gene transfer during the evolutionary process, and identified potential genetic determinants accounting for the pathogenic and host range characteristics of M. avium.
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Affiliation(s)
- Kei-Ichi Uchiya
- Department of Microbiology, Faculty of Pharmacy, Meijo University, Nagoya 468-8503, Japan
| | - Shuta Tomida
- Department of Biobank, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan
| | - Taku Nakagawa
- Department of Clinical Research, National Hospital Organization, Higashinagoya National Hospital, Nagoya 465-8620, Japan.,Department of Respiratory Medicine, National Hospital Organization, Higashinagoya National Hospital, Nagoya 465-8620, Japan
| | - Shoki Asahi
- Department of Microbiology, Faculty of Pharmacy, Meijo University, Nagoya 468-8503, Japan
| | - Toshiaki Nikai
- Department of Microbiology, Faculty of Pharmacy, Meijo University, Nagoya 468-8503, Japan
| | - Kenji Ogawa
- Department of Clinical Research, National Hospital Organization, Higashinagoya National Hospital, Nagoya 465-8620, Japan.,Department of Respiratory Medicine, National Hospital Organization, Higashinagoya National Hospital, Nagoya 465-8620, Japan
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