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Valdés I, Montoro E, Mata-Espinoza D, Asín O, Barrios-Payan J, Francisco-Cruz A, Valdivia JA, Hernández-Pando R. Immunogenicity and protection conferred by Mycobacterium habana in a murine model of pulmonary tuberculosis. Tuberculosis (Edinb) 2014; 94:65-72. [PMID: 24332882 DOI: 10.1016/j.tube.2013.08.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Revised: 08/20/2013] [Accepted: 08/31/2013] [Indexed: 10/26/2022]
Abstract
Mycobacterium habana was isolated in Cuba in 1971. Later, was demonstrated its protection capacity in mycobacterial infection. Here we determined the level of virulence, immunogenicity and the efficacy of three different M. habana strains as attenuated live vaccines. Intratracheal infection of BALB/c mice with high dose M. habana TMC 5135 or IPK-337 strains permitted 100% survival and limited tissue damage. Mice infected with M. habana IPK-220 showed lower attenuation, so it was discarded for the vaccination experiments. Strains IPK-337 and TMC 5135 were used as subcutaneous vaccine and compared with BCG. Nude mice vaccinated with strain 5135 showed longer but non-significant survival than BCG vaccinated animals. Cell suspensions from M. habana vaccinated mice produced higher IFNγ after stimulation with mycobacterial antigens than BCG recipients. After four months of challenge with Mycobacterium tuberculosis strain H37Rv, mice vaccinated with BCG substrain Phipps or strain TMC 5135 showed total survival, while 60% survival was exhibited by animals vaccinated with M. habana IPK-337. Both M. habana strains do not prevent the infection with M. tuberculosis but avoided the progression of the experimental disease; strain TMC 5135 showed similar level of protection than BCG.
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Affiliation(s)
- Iliana Valdés
- National Reference Laboratory of Tuberculosis, PAHO/WHO Collaborating Center, Tropical Medicine Institute "Pedro Kouri" (IPK), Autopista Novia del Mediodía Km 6½, La Lisa, P.O. Box 601, Havana, Cuba
| | - Ernesto Montoro
- National Reference Laboratory of Tuberculosis, PAHO/WHO Collaborating Center, Tropical Medicine Institute "Pedro Kouri" (IPK), Autopista Novia del Mediodía Km 6½, La Lisa, P.O. Box 601, Havana, Cuba
| | - Dulce Mata-Espinoza
- Experimental Pathology Section, Department of Pathology, National Institute of Medical Sciences and Nutrition "Salvador Zubirán" (INCMNSZ), Vasco de Quiroga 15, Tlalpan, Mexico City CP-14000, Mexico
| | - Odalys Asín
- National Reference Laboratory of Tuberculosis, PAHO/WHO Collaborating Center, Tropical Medicine Institute "Pedro Kouri" (IPK), Autopista Novia del Mediodía Km 6½, La Lisa, P.O. Box 601, Havana, Cuba
| | - Jorge Barrios-Payan
- Experimental Pathology Section, Department of Pathology, National Institute of Medical Sciences and Nutrition "Salvador Zubirán" (INCMNSZ), Vasco de Quiroga 15, Tlalpan, Mexico City CP-14000, Mexico
| | - Alejandro Francisco-Cruz
- Experimental Pathology Section, Department of Pathology, National Institute of Medical Sciences and Nutrition "Salvador Zubirán" (INCMNSZ), Vasco de Quiroga 15, Tlalpan, Mexico City CP-14000, Mexico
| | - José Antonio Valdivia
- National Reference Laboratory of Tuberculosis, PAHO/WHO Collaborating Center, Tropical Medicine Institute "Pedro Kouri" (IPK), Autopista Novia del Mediodía Km 6½, La Lisa, P.O. Box 601, Havana, Cuba
| | - Rogelio Hernández-Pando
- Experimental Pathology Section, Department of Pathology, National Institute of Medical Sciences and Nutrition "Salvador Zubirán" (INCMNSZ), Vasco de Quiroga 15, Tlalpan, Mexico City CP-14000, Mexico.
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Hsu FF, Pacheco S, Turk J, Purdy G. Structural determination of glycopeptidolipids of Mycobacterium smegmatis by high-resolution multiple-stage linear ion-trap mass spectrometry with electrospray ionization. JOURNAL OF MASS SPECTROMETRY : JMS 2012; 47:1269-1281. [PMID: 23019158 PMCID: PMC3462375 DOI: 10.1002/jms.3070] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Glycopeptidolipids (GPLs) are abundant in the cell walls of different species of mycobacteria and consist of tripeptide-amino-alcohol core of D-Phe-D-allo-Thr-D-Ala-L-alaninol linked to 3-hydroxy or 3-methoxy C(26-34) fatty acyl chain at the N-terminal of D-Phe via amide linkage, and a 6-deoxytalose (6-dTal) and an O-methyl rhamnose residues, respectively, attach to D-allo-Thr and the terminal L-alaninol. They are important cell-surface antigens that are implicated in the pathogenesis of opportunistic mycobacteria belonging to the Mycobacterium avium complex. In this contribution, we described multiple-stage linear ion trap in conjunction with high-resolution mass spectrometry towards structural characterization of complex GPLs as [M + Na](+) ions isolated from Mycobacterium smegmatis, a fast-growing and non-pathogenic mycobacterial species. Following resonance excitation in an ion trap, MS(n) spectra of the [M + Na](+) ions of GPLs contained mainly b and y series ions that readily determine the peptide sequence. Fragment ions from MS(n) also afford locating the 6-dTal and O-methyl rhamnose residues linked to the D-allo-Thr and terminal L-alaninol of the peptide core, respectively, as well as recognizing the modifications of the glycosides, including their acetylation and methylation states and the presence of succinyl group. The GPL families consisting of 3-hydroxy fatty acyl and of 3-methoxy fatty acyl substituents are readily distinguishable. The MS profiles of the GPLs from cells are dependant on the conditions they were grown, and several isobaric isomers were identified for many of the molecular species. These multiple-stage mass spectrometric approaches give detailed structures of GPL in complex mixtures of which the isomeric structures are difficult to define using other analytical methods.
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Affiliation(s)
- Fong-Fu Hsu
- Mass Spectrometry Resource, Division of Endocrinology, Diabetes, Metabolism and Lipid Research, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA.
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Mederos LM, Montoro EH, Bernabéu A, Linares C, Valero-Guillén PL. Structural studies of cord factors from Mycobacterium simiae related to the capacity for tumour necrosis factor alpha (α-TNF) induction. MICROBIOLOGY-SGM 2010; 156:3744-3753. [PMID: 20688816 DOI: 10.1099/mic.0.042077-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The structure of cord factor was studied in several strains of Mycobacterium simiae, including 'habana' TMC 5135, considered as highly immunogenic in experimental tuberculosis and leprosy. The mycolic acids liberated from cord factor were identified in all cases as α'-, α- and keto-mycolates. According to the general NMR and MS data, α'-mycolates were mono-unsaturated and contained from 64 to 68 carbon atoms, whereas α-mycolates mainly presented two 2,3-disubstituted cyclopropane rings and a chain length of 80-91 carbon atoms; keto-mycolates mostly contained one cyclopropane ring and 85-91 carbon atoms. Taking into account the (1)H-NMR results, strains varied in the ratio of the different mycolates, and the high levels of keto-mycolates found in the cord factors of TMC 5135 and ATCC 25275(T) stood out. Notably, MS revealed that the odd carbon number series of α-mycolates (C87-C89) predominated in the cord factor of TMC 5135, in contrast to the remaining studied strains, in which the even (C84-C86) and odd carbon number series appeared more equal. The fine structural differences detected among the cord factors studied did not seem to be relevant to the general capacity of these molecules to induce the secretion of tumour necrosis factor alpha, as the cord factors from several strains of M. simiae (TMC 5135, IPK-342 and ATCC 25275(T)) induced similar amounts of this cytokine in RAW 264.7 cells.
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Affiliation(s)
- Lilian M Mederos
- Laboratorio Nacional de Referencia e Investigaciones en Tuberculosis y Micobacterias, Centro Colaborador OPS/OMS, Instituto de Medicina Tropical Pedro Kourí (IPK), La Habana, Cuba
| | - Ernesto H Montoro
- Laboratorio Nacional de Referencia e Investigaciones en Tuberculosis y Micobacterias, Centro Colaborador OPS/OMS, Instituto de Medicina Tropical Pedro Kourí (IPK), La Habana, Cuba
| | - Antonia Bernabéu
- Sección de Cultivo de Tejidos, Servicio de Apoyo a la Investigación, Campus Universitario de Espinardo, Universidad de Murcia, Murcia, Spain
| | - Carlos Linares
- Departamento de Genética y Microbiología, Facultad de Medicina y Odontología, Campus Universitario de Espinardo, Universidad de Murcia, Murcia, Spain
| | - Pedro L Valero-Guillén
- Departamento de Genética y Microbiología, Facultad de Medicina y Odontología, Campus Universitario de Espinardo, Universidad de Murcia, Murcia, Spain
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