Abstract:
:A specific enzyme-linked immunosorbent assay, based on a 48 kDa metallo-proteinase isolated from the frontal glands of a porocephalid pentastomid (Porocephalus crotali) in rat intermediate hosts, is described. SDS-PAGE analysis of whole nymphal homogenate, followed by Western blotting and probing with immune rat serum, revealed that only 2 protein bands label consistently; these are the 48 kDa metallo-proteinase and a 150 kDa metallo-proteinase from the body fluid, but only the former labels strongly. Furthermore this response is detected earlier and persists much longer. These characteristics uniquely qualify the 48 kDa metallo-proteinase as a diagnostic antigen. We review the literature concerning the related porocephalid Linguatula serrata from the nasal cavities of domestic dogs, which can zoonotically infect man principally through the ingestion of eggs. We conclude that the high prevalences in dogs in certain areas, most notably the Middle East, must inevitably signal significant human infections. Our ELISA can be readily adapted for the serodiagnosis of linguatulosis and this should establish whether our prediction is true.
journal_name
Parasitologyjournal_title
Parasitologyauthors
Jones DA,Riley Jdoi
10.1017/s0031182000059849subject
Has Abstractpub_date
1991-12-01 00:00:00pages
331-7eissn
0031-1820issn
1469-8161journal_volume
103 Pt 3pub_type
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