Parasites, Hosts and Diseases
- Volume 32 Issue 1
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- Pages.35-42
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- 1994
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- 2982-5164(pISSN)
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- 1738-0006(eISSN)
Immune reactions between excretory-secretory antigens and specific antibodies of Clonorchis sinensis before and after praziquantel treatment in experimentally infected rabbits
간흡충 감염 토끼에서 프라지콴텔 치료 전후의 특이항체의 간흡충 분비배설항원에 대한 면역반응양상
Abstract
This study was designed to evaluate the humoral immune reactions in clonorchiasis before and after praziquantel treatment. Rabbits were infected with 150 or 450 metacercariae, treated on 4 and 8111 months after infection, and observed for 13 months of posttreatment. Infection controls were maintained for 22 months. Antigen was the metabolic product of worms incubated in physiologic saline. The immune reactions of anti-clonorchis IgG were observed using SDS-PAGE/immunoblot. During the Infection and Posttreatment, the antigenic Proteins of 66, 63, 54, 52, 50,47,42, 40, 38, 34,33,30, 27, 25, 23, 20, 19, 18, 17, 16, 15, 14, 13, 12.5 and 11.5 kDa were detected. Of them, 33,27, 13, and 12.5-kDa antigens were highly antigenic and observed predominently in infection controls. After the treatment, 13 and 12.5-kDa antigens faded in 6 months after the second treatment, but 33 and 27-kDa antigens were detected until 13 months of posttreatment. The results clearly demonstrate that 13 and 12.5-kDa antigens represent attenuated host immune reactions by praziquantel treatment. As the 12.5-kDa antigen had a large amount of protein in SDS-PAGE, it was designated as'K2-Ag'of C. sinenis.
간흡충 특이 IgG 항체와 간흡충 분비배설항원간의 면역반응이 간흡충 감염과 치료에 의해 어떻게 변화되고 치료 후 소실되는 것이 있는지 관찰하였다. 간흡충 피낭유충 150, 450개씩 토끼에 감염시키고 감염대조군은 22개월. 프라지콴텔 치료군은 감염 4개월에 투약하였으나 완치되지 않아 이후
Keywords