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Title: Evaluation of rhophilin associated tail protein (Ropn1l) in the human liver fluke opisthorchis viverrini for diagnostic approach
Authors: Amornrat Geadkaew-Krenc
Rudi Grams
Wansika Phadungsil
Wanlapa Chaibangyang
Nanthawat Kosa
Poom Adisakwattana
Paron Dekumyoy
Sysmex Corporation
Mahidol University
Thammasat University
Keywords: Immunology and Microbiology;Medicine
Issue Date: 1-Aug-2020
Citation: Korean Journal of Parasitology. Vol.58, No.4 (2020), 475-479
Abstract: © 2020, Korean Society for Parasitology and Tropical Medicine. Tegumental and excretory-secretory proteins are reported as diagnostic antigens for human opisthorchiasis. Rhophilin associated tail protein1-like (OvROPN1L) protein of Opisthorchis viverrini sperm tail showed potential as a diagnostic antigen. The OvROPN1L recombinant fragments were assayed for diagnostic antigenicity for human opisthorchiasis using indirect ELISA. The strongest antigenic region was a N-terminus peptide of M1-P56. One synthetic peptide (P1, L3-Q13) of this region showed the highest antigenicity to opisthorchiasis. Sera from other parasitic infections including Strongyloides stercoralis, hookworm, Taenia spp, minute intestinal flukes, Paragonimus spp showed lower reactivity to P1. Peptide P1 is located in the disordered N-terminus of ROPN1L supporting its suitability as linear epitope. In the Platyhelminthes the N-terminal sequence of ROPN1L is diverging with taxonomic distance further suggesting that peptide P1 has potential as diagnostic tool in the genus Opisthorchis/Clonorchis. It should be further evaluated in combination with peptides derived from other O. viverrini antigens to increase its diagnostic power.
ISSN: 17380006
Appears in Collections:Scopus 2020

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