Title
Anti-Taenia solium monoclonal antibodies for the detection of parasite antigens in body fluids from patients with neurocysticercosis
Date Issued
01 July 2016
Access level
open access
Resource Type
journal article
Author(s)
Rivera A.
Guerra-Giraldez C.
Nash T.E.
Publisher(s)
Elsevier
Abstract
Neurocysticercosis (NCC), an infection of the brain by Taenia solium (Ts) cysts, is the most common cause of adult-onset epilepsy in developing countries. Serological testing consists primarily of varying methods to detect antibodies in body fluids and more recently antigen (Ag) detection assays to identify individuals or animals with viable parasites. Antigen assays currently in use employ monoclonal antibodies (mAbs) raised against T. saginata, which have known cross reactivity to animal cestodes but are highly specific in human samples. We produced, characterized and tested 21 mAbs raised against T. solium whole cyst antigens, vesicular fluid or excretory secretory products. Reactivity of the TsmAbs against specific cyst structures was determined using immunofluorescence and immunohistochemistry on histological sections of Ts muscle cysts. Four TsmAbs reacted to vesicular space alone, 9 to the neck and cyst wall, one to the neck and vesicular space and 7 to the neck, cyst wall and vesicular space. An in-house ELISA assay to detect circulating Ts antigen, using the TsmAbs as capture antibodies and a rabbit polyclonal anti-Ts whole cyst antibody as a detector antibody demonstrated that eight of the 21 TsmAbs detected antigens in known NCC-positive human sera and three of these also in urine samples. Reactivity was expressed as normalized ratios of optical densities (OD positive control/OD negative control). Three TsmAbs had ratios >10 and five between 2 and 10. The TsmAbs have potential utility for the diagnosis and post-treatment monitoring of patients with viable NCC infections.
Start page
37
End page
43
Volume
166
Language
English
OCDE Knowledge area
Enfermedades infecciosas
NeurologÃa clÃnica
ParasitologÃa
Subjects
Scopus EID
2-s2.0-84962311344
PubMed ID
Source
Experimental Parasitology
ISSN of the container
0014-4894
Sponsor(s)
This work was supported partially by Innovate Peru , project FINCyT-IA-231-2013 , by NIH/FIC Training grant TW001140 , and by an intramural research program of the National Institutes of Allergy and Infectious Diseases .
Sources of information:
Directorio de Producción CientÃfica
Scopus