2018
DOI: 10.1371/journal.pntd.0006402
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A real-time PCR tool for the surveillance of zoonotic Onchocerca lupi in dogs, cats and potential vectors

Abstract: The ocular onchocercosis is caused by the zoonotic parasite Onchocerca lupi (Spirurida: Onchocercidae). A major hindrance to scientific progress is the absence of a reliable diagnostic test in affected individuals. Microscopic examination of skin snip sediments and the identification of adults embedded in ocular nodules are seldom performed and labour-intensive. A quantitative real-time PCR (qPCR) assay was herein standardized for the detection of O. lupi DNA and the results compared with microscopic examinati… Show more

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Cited by 21 publications
(26 citation statements)
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“…However, the immunological potential of linear antigenic epitopes has been demonstrated by microarray screening of the entire proteome of different pathogens [61][62][63], as it is the case of O. volvulus for which three peptide motifs with an IgG1, IgG3, IgE and IgM response profile were identified [64]. Furthermore, though Paramyosin is a widely conserved protein across species with well-known antigenic potential [65,66], the immunological properties of Ol-PARA [25] have been herein investigated by the identification of the three linear epitopes (LEEARRRLE, SRLQSEVEVLIVDL, MQVDEEHKMF), which showed a high intensity of reactivity when tested against serum sample of O. lupi infected dog.…”
Section: Plos Neglected Tropical Diseasesmentioning
confidence: 99%
See 1 more Smart Citation
“…However, the immunological potential of linear antigenic epitopes has been demonstrated by microarray screening of the entire proteome of different pathogens [61][62][63], as it is the case of O. volvulus for which three peptide motifs with an IgG1, IgG3, IgE and IgM response profile were identified [64]. Furthermore, though Paramyosin is a widely conserved protein across species with well-known antigenic potential [65,66], the immunological properties of Ol-PARA [25] have been herein investigated by the identification of the three linear epitopes (LEEARRRLE, SRLQSEVEVLIVDL, MQVDEEHKMF), which showed a high intensity of reactivity when tested against serum sample of O. lupi infected dog.…”
Section: Plos Neglected Tropical Diseasesmentioning
confidence: 99%
“…However, the results of these procedures may be (false-) negative in the case of infections with immature or not reproducing worms and according to the day-time of the sampling, considering the circadian rhythm of mfs [8]. Even if, PCR-based DNA assays have been developed [7,25] and preliminary investigations on serology have been attempted [26,27], a serological, non-invasive diagnosis is still missing. Although, the preliminary immunological properties of paramyosin protein of O. lupi (Ol-PARA) has been previously evaluated, no immunoreactive peptides have been identified [27].…”
Section: Introductionmentioning
confidence: 99%
“…Acanthocheilonema reconditum, A. dracunculoides, Cercopithifilaria grassii, Brugia ceylonensis, B. patei, B. malayi, B. pahangi, Onchocerca lupi and Thelazia callipaeda [1][2][3][4]. These arthropod-borne filarioids produce blood, cutaneous or mucous microfilariae, where they are available to arthropod vectors [5].…”
mentioning
confidence: 99%
“…Molecular assays have been employed to detect O. lupi in dogs, humans, cats and black flies by targeting three mitochondrial loci: the cytochrome oxidase c subunit 1 ( cox 1) (Hassan et al ., 2015; Maia et al ., 2015; Otranto et al ., 2015; Hodzic et al ., 2018; Latrofa et al ., 2018), the 12S rRNA (Faisca et al ., 2010; Mowlavi et al ., 2014) and the reduced nicotinamide adenine dinucleotide (NADH) dehydrogenase subunit 5 ( nad 5) (Labelle et al ., 2013; McLean et al ., 2017). Mitochondrial markers are ideal for phylogenetic and epidemiologic studies since they are clonal, they rarely or never undergo recombination, are mostly of maternal inheritance and evolve faster than nuclear genes (Le et al ., 2000).…”
Section: Introductionmentioning
confidence: 99%