IMMUNOBLOT WITH CEREBROSPINAL-FLUID FROM PATIENTS WITH NEUROCYSTICERCOSIS USING ANTIGEN FROM CYSTICERCI OF TAENIA-SOLIUM AND TAENIA-CRASSICEPS

A comparative study was conducted on membrane (M) and vesicular fluid (VF) from cysticerci of Taenia solium (Tso) obtained from naturally in fected swine and the Taenin crassiceps ORF strain (Tc) maintained by e xperimental infection of female BALB/c mice. The study was carried out using immunoblotting to detect antibodies in cerebrospinal fluid (CSF ) from patients with neurocysticercosis. No reactivity was observed in the 32 samples from a control group. Of the 23 CSF fluid samples from patients with neurocysticercosis, 22 (95.6%) were reactive in the M-T so blot and 21 (91.3%) were reactive in the other three blots (VF-Tso, hl-Tc, and VF-Tc), Immunodominant peptides in each antigen were 98-92 kD, 56-52 kD, and 72-68 kD in M-Tso; 72-68 kD, 120 kD, 155 kD, 98-94 kD, 76 kD, and 115-108 kD in VF-Tso: 72 kD, 42 kD, and 42 kD in hl-Tc; and 72-68 kD and 95-92 kD in VF-Tc. The cross-reactivity observed in the immunoblots performed on CSF samples from patients with neurocysti cercosis indicates that the parasites share important epitopes present at sufficient concentrations for use in immunologic tests.