Registro completo de metadatos
| Campo DC | Valor | Lengua/Idioma |
|---|---|---|
| dc.creator | Geffner, Laura Judith | - |
| dc.creator | Yokobori, Noemí | - |
| dc.creator | Basile, Juan Ignacio | - |
| dc.creator | Schierloh, Luis Pablo | - |
| dc.creator | Balboa, Luciana | - |
| dc.creator | Romero, María Mercedes | - |
| dc.creator | Ritacco, Gloria Viviana | - |
| dc.creator | Vescovo, Marisa | - |
| dc.creator | Montaner, Pablo González | - |
| dc.creator | Lopez, Beatriz | - |
| dc.creator | Barrera, Lucía | - |
| dc.creator | Alemán, Mercedes | - |
| dc.creator | Abatte, Eduardo | - |
| dc.creator | Sasiain, María del Carmen | - |
| dc.creator | de la Barrera, Silvia Susana | - |
| dc.date | 2018-08-13T15:08:56Z | - |
| dc.date | 2018-08-13T15:08:56Z | - |
| dc.date | 2009-11 | - |
| dc.date | 2018-08-06T21:42:23Z | - |
| dc.date.accessioned | 2019-04-29T15:27:06Z | - |
| dc.date.available | 2019-04-29T15:27:06Z | - |
| dc.date.issued | 2018-08-13T15:08:56Z | - |
| dc.date.issued | 2018-08-13T15:08:56Z | - |
| dc.date.issued | 2009-11 | - |
| dc.date.issued | 2018-08-06T21:42:23Z | - |
| dc.identifier | Geffner, Laura Judith; Yokobori, Noemí; Basile, Juan Ignacio; Schierloh, Luis Pablo; Balboa, Luciana; et al.; Patients with multidrug-resistant tuberculosis display impaired Th1 responses and enhanced regulatory T-cell levels in response to an outbreak of multidrug-resistant Mycobacterium tuberculosis M and Ra strains; American Society for Microbiology; Infection and Immunity; 77; 11; 11-2009; 5025-5034 | - |
| dc.identifier | 0019-9567 | - |
| dc.identifier | http://hdl.handle.net/11336/55115 | - |
| dc.identifier | CONICET Digital | - |
| dc.identifier | CONICET | - |
| dc.identifier.uri | http://rodna.bn.gov.ar:8080/jspui/handle/bnmm/294391 | - |
| dc.description | In Argentina, multidrug-resistant tuberculosis (MDR-TB) outbreaks emerged among hospitalized patients with AIDS in the early 1990s and thereafter disseminated to the immunocompetent community. Epidemiological, bacteriological, and genotyping data allowed the identification of certain MDR Mycobacterium tuberculosis outbreak strains, such as the so-called strainMof the Haarlem lineage and strain Ra of the Latin America and Mediterranean lineage. In the current study, we evaluated the immune responses induced by strains M and Ra in peripheral blood mononuclear cells from patients with active MDR-TB or fully drug-susceptible tuberculosis (S-TB) and in purified protein derivative-positive healthy controls (group N). Our results demonstrated that strain M was a weaker gamma interferon (IFN-γ) inducer than H37Rv for group N. Strain M induced the highest interleukin-4 expression in CD4+ and CD8+ T cells from MDR- and S-TB patients, along with the lowest cytotoxic T-lymphocyte (CTL) activity in patients and controls. Hence, impairment of CTL activity is a hallmark of strain M and could be an evasion mechanism employed by this strain to avoid the killing of macrophages by M-specific CTL effectors. In addition, MDR-TB patients had an increased proportion of circulating regulatory T cells (Treg cells), and these cells were further expanded upon in vitro M. tuberculosis stimulation. Experimental Treg cell depletion increased IFN-γ expression and CTL activity in TB patients, with M- and Ra-induced CTL responses remaining low in MDR-TB patients. Altogether, these results suggest that immunity to MDR strains might depend upon a balance between the individual host response and the ability of different M. tuberculosis genotypes to drive Th1 or Th2 profiles. Copyright © 2009, American Society for Microbiology. All Rights Reserved. | - |
| dc.description | Fil: Geffner, Laura Judith. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Academia Nacional de Medicina de Buenos Aires. Instituto de Investigaciones Hematológicas ; Argentina | - |
| dc.description | Fil: Yokobori, Noemí. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Academia Nacional de Medicina de Buenos Aires. Instituto de Investigaciones Hematológicas ; Argentina | - |
| dc.description | Fil: Basile, Juan Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Academia Nacional de Medicina de Buenos Aires. Instituto de Investigaciones Hematológicas ; Argentina | - |
| dc.description | Fil: Schierloh, Luis Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Academia Nacional de Medicina de Buenos Aires. Instituto de Investigaciones Hematológicas ; Argentina | - |
| dc.description | Fil: Balboa, Luciana. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Academia Nacional de Medicina de Buenos Aires. Instituto de Investigaciones Hematológicas ; Argentina | - |
| dc.description | Fil: Romero, María Mercedes. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Academia Nacional de Medicina de Buenos Aires. Instituto de Investigaciones Hematológicas ; Argentina | - |
| dc.description | Fil: Ritacco, Gloria Viviana. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Dirección Nacional de Institutos de Investigación. Administración Nacional de Laboratorios e Institutos de Salud. Instituto Nacional de Enfermedades Infecciosas; Argentina | - |
| dc.description | Fil: Vescovo, Marisa. Gobierno de la Ciudad de Buenos Aires. Hospital de Infecciosas ; Argentina | - |
| dc.description | Fil: Montaner, Pablo González. Gobierno de la Ciudad de Buenos Aires. Hospital de Infecciosas ; Argentina | - |
| dc.description | Fil: Lopez, Beatriz. Dirección Nacional de Institutos de Investigación. Administración Nacional de Laboratorios e Institutos de Salud. Instituto Nacional de Enfermedades Infecciosas; Argentina | - |
| dc.description | Fil: Barrera, Lucía. Dirección Nacional de Institutos de Investigación. Administración Nacional de Laboratorios e Institutos de Salud. Instituto Nacional de Enfermedades Infecciosas; Argentina | - |
| dc.description | Fil: Alemán, Mercedes. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Academia Nacional de Medicina de Buenos Aires. Instituto de Investigaciones Hematológicas ; Argentina | - |
| dc.description | Fil: Abatte, Eduardo. Gobierno de la Ciudad de Buenos Aires. Hospital de Infecciosas ; Argentina | - |
| dc.description | Fil: Sasiain, María del Carmen. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Academia Nacional de Medicina de Buenos Aires. Instituto de Investigaciones Hematológicas ; Argentina | - |
| dc.description | Fil: de la Barrera, Silvia Susana. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Academia Nacional de Medicina de Buenos Aires. Instituto de Investigaciones Hematológicas ; Argentina | - |
| dc.format | application/pdf | - |
| dc.format | application/pdf | - |
| dc.format | application/pdf | - |
| dc.format | application/pdf | - |
| dc.format | application/pdf | - |
| dc.format | application/pdf | - |
| dc.format | application/pdf | - |
| dc.format | application/pdf | - |
| dc.format | application/pdf | - |
| dc.format | application/pdf | - |
| dc.language | eng | - |
| dc.publisher | American Society for Microbiology | - |
| dc.relation | info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1128/IAI.00224-09 | - |
| dc.relation | info:eu-repo/semantics/altIdentifier/url/http://iai.asm.org/content/77/11/5025 | - |
| dc.rights | info:eu-repo/semantics/restrictedAccess | - |
| dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | - |
| dc.source | reponame:CONICET Digital (CONICET) | - |
| dc.source | instname:Consejo Nacional de Investigaciones Científicas y Técnicas | - |
| dc.source | instacron:CONICET | - |
| dc.subject | Mycobacterium tuberculosis | - |
| dc.subject | MDR strains | - |
| dc.subject | Th1 response | - |
| dc.subject | T regulatory | - |
| dc.subject | MDR-TB | - |
| dc.subject | Inmunología | - |
| dc.subject | Medicina Básica | - |
| dc.subject | CIENCIAS MÉDICAS Y DE LA SALUD | - |
| dc.title | Patients with multidrug-resistant tuberculosis display impaired Th1 responses and enhanced regulatory T-cell levels in response to an outbreak of multidrug-resistant Mycobacterium tuberculosis M and Ra strains | - |
| dc.type | info:eu-repo/semantics/article | - |
| dc.type | info:eu-repo/semantics/publishedVersion | - |
| dc.type | info:ar-repo/semantics/articulo | - |
| Aparece en las colecciones: | CONICET | |
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