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Proteomic Analysis of Trichinella spiralis Muscle Larval Excretory-Secretory Proteins Recognized by Early Infection Sera

Although the excretory-secretory (ES) proteins of Trichinella spiralis muscle larvae are the most commonly used diagnostic antigens for trichinellosis, their main disadvantage is the false negative results during the early stage of infection and cross-reaction of their main components (43, 45, 49, a...

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Detalles Bibliográficos
Autores principales: Wang, Li, Wang, Zhong Quan, Hu, Dan Dan, Cui, Jing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3697278/
https://www.ncbi.nlm.nih.gov/pubmed/23844355
http://dx.doi.org/10.1155/2013/139745
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author Wang, Li
Wang, Zhong Quan
Hu, Dan Dan
Cui, Jing
author_facet Wang, Li
Wang, Zhong Quan
Hu, Dan Dan
Cui, Jing
author_sort Wang, Li
collection PubMed
description Although the excretory-secretory (ES) proteins of Trichinella spiralis muscle larvae are the most commonly used diagnostic antigens for trichinellosis, their main disadvantage is the false negative results during the early stage of infection and cross-reaction of their main components (43, 45, 49, and 53 kDa) with sera of patients with other helminthiasis. The aim of this study was to identify early specific diagnostic antigens in T. spiralis ES proteins with 30–40 kDa. The ES proteins were analyzed by two-dimensional electrophoresis (2-DE), and a total of approximately 150 proteins spots were detected with isoelectric point (pI) varying from 4 to 7 and molecular weight from 14 to 66 kDa. When probed with sera from infected mice at 18 days postinfection, ten protein spots with molecular weight of 30–40 kDa were recognized and identified by MALDI-TOF/TOF-MS. All of ten spots were successfully identified and characterized to correlate with five different proteins, including two potential serine proteases, one antigen targeted by protective antibodies, one deoxyribonuclease (DNase) II, and one conserved hypothetical protein. These proteins might be the early specific diagnostic antigens for trichinellosis.
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spelling pubmed-36972782013-07-10 Proteomic Analysis of Trichinella spiralis Muscle Larval Excretory-Secretory Proteins Recognized by Early Infection Sera Wang, Li Wang, Zhong Quan Hu, Dan Dan Cui, Jing Biomed Res Int Research Article Although the excretory-secretory (ES) proteins of Trichinella spiralis muscle larvae are the most commonly used diagnostic antigens for trichinellosis, their main disadvantage is the false negative results during the early stage of infection and cross-reaction of their main components (43, 45, 49, and 53 kDa) with sera of patients with other helminthiasis. The aim of this study was to identify early specific diagnostic antigens in T. spiralis ES proteins with 30–40 kDa. The ES proteins were analyzed by two-dimensional electrophoresis (2-DE), and a total of approximately 150 proteins spots were detected with isoelectric point (pI) varying from 4 to 7 and molecular weight from 14 to 66 kDa. When probed with sera from infected mice at 18 days postinfection, ten protein spots with molecular weight of 30–40 kDa were recognized and identified by MALDI-TOF/TOF-MS. All of ten spots were successfully identified and characterized to correlate with five different proteins, including two potential serine proteases, one antigen targeted by protective antibodies, one deoxyribonuclease (DNase) II, and one conserved hypothetical protein. These proteins might be the early specific diagnostic antigens for trichinellosis. Hindawi Publishing Corporation 2013 2013-06-13 /pmc/articles/PMC3697278/ /pubmed/23844355 http://dx.doi.org/10.1155/2013/139745 Text en Copyright © 2013 Li Wang et al. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Wang, Li
Wang, Zhong Quan
Hu, Dan Dan
Cui, Jing
Proteomic Analysis of Trichinella spiralis Muscle Larval Excretory-Secretory Proteins Recognized by Early Infection Sera
title Proteomic Analysis of Trichinella spiralis Muscle Larval Excretory-Secretory Proteins Recognized by Early Infection Sera
title_full Proteomic Analysis of Trichinella spiralis Muscle Larval Excretory-Secretory Proteins Recognized by Early Infection Sera
title_fullStr Proteomic Analysis of Trichinella spiralis Muscle Larval Excretory-Secretory Proteins Recognized by Early Infection Sera
title_full_unstemmed Proteomic Analysis of Trichinella spiralis Muscle Larval Excretory-Secretory Proteins Recognized by Early Infection Sera
title_short Proteomic Analysis of Trichinella spiralis Muscle Larval Excretory-Secretory Proteins Recognized by Early Infection Sera
title_sort proteomic analysis of trichinella spiralis muscle larval excretory-secretory proteins recognized by early infection sera
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3697278/
https://www.ncbi.nlm.nih.gov/pubmed/23844355
http://dx.doi.org/10.1155/2013/139745
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