Abstract:
:Animal African Trypanosomosis (AAT) presents a severe problem for agricultural development in sub-Saharan Africa. It is caused by several trypanosome species and current means of diagnosis are expensive and impractical for field use. Our aim was to discover antigens for the detection of antibodies to Trypanosoma congolense, one of the main causative agents of AAT. We took a proteomic approach to identify potential immunodiagnostic parasite protein antigens. One hundred and thirteen proteins were identified which were selectively recognized by infected cattle sera. These were assessed for likelihood of recombinant protein expression in E. coli and fifteen were successfully expressed and assessed for their immunodiagnostic potential by ELISA using pooled pre- and post-infection cattle sera. Three proteins, members of the invariant surface glycoprotein (ISG) family, performed favorably and were then assessed using individual cattle sera. One antigen, Tc38630, evaluated blind with 77 randomized cattle sera in an ELISA assay gave sensitivity and specificity performances of 87.2% and 97.4%, respectively. Cattle immunoreactivity to this antigen diminished significantly following drug-cure, a feature helpful for monitoring the efficacy of drug treatment.
journal_name
PLoS Negl Trop Disjournal_title
PLoS neglected tropical diseasesauthors
Fleming JR,Sastry L,Crozier TW,Napier GB,Sullivan L,Ferguson MAdoi
10.1371/journal.pntd.0002936subject
Has Abstractpub_date
2014-06-12 00:00:00pages
e2936issue
6eissn
1935-2727issn
1935-2735pii
PNTD-D-14-00012journal_volume
8pub_type
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journal_title:PLoS neglected tropical diseases
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journal_title:PLoS neglected tropical diseases
pub_type: 杂志文章,评审
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journal_title:PLoS neglected tropical diseases
pub_type: 杂志文章,评审
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更新日期:2008-09-17 00:00:00
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pub_type: 已发布勘误
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