Purification and ultrastructural localization of surface glycoproteins of Taenia solium (Cestoda) cysticerci.
A glycoprotein-enriched fraction was obtained by Concanavalin A-Sepharose 4B affinity chromatography from a crude extract of T. solium cysticerci. The six most prominent glycoproteins with molecular sizes of 180, 103, 96, 68, 55 and 45 kDa were purified by electro-elution from polyacrylamide gel slices. Ultrastructural localization assays using hyperimmune rabbit sera to each glycoprotein, demonstrated their presence on the tegumentary surface of the bladder wall of T. solium cysticerci. Similar studies showed that the 180 kDa glycoprotein is also present on the surface of the T. solium and T. saginata adult worms, as well as in T. saginata, T. pisiformis and T. crassiceps cysticerci. The 55 kDa glycoprotein, which is one of the most abundant on the cyst surface, was found to correspond to the heavy chain of pig IgG by Western blotting.
Department of Immunology, Universidad Nacional Autónoma de México, México, D.F.
A
A
Landa
M T
MT
Merchant
K
K
Willms
J P
JP
Laclette
D000818:Animals; D002846:Chromatography, Affinity; D003552:Cysticercus / Q000737:chemistry* / Q000648:ultrastructure; D008562:Membrane Glycoproteins / Q000032:analysis / Q000302:isolation & purification*; D016253:Microscopy, Immunoelectron; D013552:Swine
D008562:Membrane Glycoproteins