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Table · dataset · 2026

<p>Blocking ELISA inter-assay repeatability test.</p>

Listed in figshare and Loughborough Research Repository — shown once because both records carry DOI 10.1371/journal.pntd.0014755.t004

<div><p>Alveolar echinococcosis (AE) is a severe zoonotic parasitic disease caused by the larval stage of <i>Echinococcus multilocularis</i>, for which early and accurate diagnosis remains challenging.

Description

In this study, we targeted <i>E. multilocularis</i> thioredoxin peroxidase (EmTPx), a highly abundant excretory/secretory protein conserved across the genus <i>Echinococcus</i>, for diagnostic development. Monoclonal antibodies (mAbs) against EmTPx were generated, and two linear B‑cell epitopes, <sup>174</sup>HPGSK<sup>178</sup> and <sup>189</sup>SFMSS<sup>193</sup>, were identified.

Both epitopes are strictly conserved within <i>Echinococcus</i> but markedly divergent from mammalian host sequences. Structural modeling revealed that the epitopes are surface‑exposed, with <sup>174</sup>HPGSK<sup>178</sup> located in a flexible loop and <sup>189</sup>SFMSS<sup>193</sup> adjacent to an α‑helix, conformations favorable for antibody recognition. Two ELISA methods were established using the epitope‑specific mAbs.

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The blocking ELISA showed moderate diagnostic performance. More importantly, the sandwich ELISA enabled direct detection of EmTPx antigen in fecal samples of intermediate hosts, revealing a detection rate of 85% in mouse feces at an early infection stage. With a linear range of 0–250 ng/mL, a cutoff of 0.1724, and intra‑ and inter‑assay precision below 10%, this sandwich ELISA demonstrated robust analytical performance.

In conclusion, this proof-of-concept study identifies two evolutionarily conserved and structurally exposed EmTPx epitopes and demonstrates their potential utility for the development of monoclonal antibody-based approaches for non-invasive detection of echinococcosis.</p></div>

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Inferred from text
Disease 75%
Provenance · 2 source records, 43 field assertions
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figshareoai:figshare.com:article/339685368 d agoJSON v1
Loughborough Research Repositoryoai:figshare.com:article/339685368 d agoJSON v1
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