Abstract:
BACKGROUND:The role of the surface capsular polysaccharides (CPs) of Mycobacterium tuberculosis (Mtb) in the pathogenesis of infection and disease, as well their potential for use as diagnostic reagents and vaccine antigens, are unknown. METHODS:Serum antibody to two CPs of Mtb, arabinomannan (AM) and glucan (Glu), were studied in samples from 52 18-74 year-old HIV-seronegative, immunocompetent individuals in Houston Texas. The effects of Mtb exposure, infection and disease upon the levels of antibodies to these CPs were assessed. Subjects were grouped according to the standard international classification. RESULTS:IgA anti-Glu levels were significantly higher in the active and treated TB compared to a group that was PPD-negative without TB exposure history (p<0.05). Antibodies against AM demonstrated a similar pattern, with the exception that IgG anti-AM was higher in groups who had active TB or previously documented active TB, and IgA anti-AM was higher in subjects with previously documented active TB compared to the level in an unexposed, PPD-negative group (p<0.05). Serum IgG anti-Glu levels were higher in subjects with active TB or previously documented active TB than in the unexposed PPD-negative group, but the differences were not significant. CONCLUSIONS:These data suggest that the evaluation of antibody responses to the CP of Mtb may have utility for TB serodiagnosis, and that vaccines designed to induce humoral responses to TB CPs should be tested for their capacity to evoke anti-tuberculosis protective immunity.
journal_name
BMC Infect Disjournal_title
BMC infectious diseasesauthors
Keitel WA,Dai Z,Awe RW,Atmar RL,Morris S,Schneerson R,Robbins JBdoi
10.1186/1471-2334-13-276subject
Has Abstractpub_date
2013-06-19 00:00:00pages
276issn
1471-2334pii
1471-2334-13-276journal_volume
13pub_type
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journal_title:BMC infectious diseases
pub_type: 杂志文章
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pub_type: 临床试验,杂志文章
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pub_type: 杂志文章
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pub_type: 杂志文章
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pub_type: 杂志文章
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pub_type: 杂志文章,评审
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