Antibody responses in sera of different mouse strains experimentally infected with Neodiplostomum seoulense.
To examine humoral immune responses in the host, we measured serum antibody levels in different strains of mice (ICR, BALB/c, and C3H) experimentally infected with Neodiplostomum seoulense. Specific IgG antibody levels were increased remarkably with little difference among 3 strains of mice infected with N. seoulense from day 7 to 35 post-infection. More target proteins of adult parasites reacted with IgG at the time when the worm recovery decreased compared with other times. More than 20 protein bands, from 14 kDa to 94 kDa in size, were separated from the crude antigen of N. seoulense adults by SDS-PAGE, and among them 26, 30, 35, 43, 54, 67, and 94 kDa proteins were the major antigenic proteins. The results suggest that significant IgG antibody responses occur against N. seoulense in mice and this may be related with expulsion of worms.
Han
Eun-Taek
ET
Department of Parasitology, Kangwon National University College of Medicine, Chuncheon 200-701, Korea.
Chen
Jun-Hu
JH
Chai
Jong-Yil
JY
D000818:Animals; D000909:Antibodies, Helminth / Q000097:blood*; D006790:Host-Parasite Interactions; D051379:Mice; D008807:Mice, Inbred BALB C; D008809:Mice, Inbred C3H; D008813:Mice, Inbred ICR; D014200:Trematoda / Q000145:classification; D014201:Trematode Infections / Q000097:blood* / Q000276:immunology*
D000909:Antibodies, Helminth