Identification of surface antigens of Trichomonas vaginalis

Biotin 표지법에 의한 질트리코모나스의 표면 항원 분리

Surface proteins of Trichomonqs unginnlis (T vqsinalis) were analyzed to study the antigenic variation. The surface proteins of protozoa were labelled by N- hydrokysuccinimide-biotin (NHS-biotins, the NHS-biotin-labelled proteins were immunoprecipitated with rabbit antiserum to purifjr the antigenic fractions and analysed by SDS-PAGE plus electroblotting. The results obtained in this study were as follows; Biotinylated T. uaginalis-proteins obtained from intact cell and cells disrupted prior to labelling were detected by antibiotin-peroxidase in Western blots. Labelled proteins were immunoprecipitated by T. vcqinalis-immunized rabbit serum and the six bands with, the molecular weights of 46, 60, 68, 90, 130 and 220 kDa were identified as having antigenicity. T unginalis HY-1,HY-15 and ATCC 50148 were immunoprecipitated by immune rabbit serum after biotinylation and there were no difference from antigenic bands among these strains by this tehchnique. In conclusion with the results obtained in the present study, it was assumed that surface proteins of T vaqinclis were labelled by biotinylation and the six labelled bands at 46, 60, 68, 90, 130 and 220 kDa in their molecular weight were identified as having antigenicity by immunoprecipitation (IPI and this biotinylation-IP technique may be used for further study of surface antigen of T vaginalis.

질트리코모나스(Trichomonasvqqin is)의 항원성 변이를 관찰하기 위해 원충의 표면 항원 (surface antigen)을 N-hydmwsuccinlmide-biotin(N반5-biotin)으로 표지 하고 표지된 표면 단백질과 토끼의 항혈청으로 면역침전(Immunoprecipitation; IP)시켰으며 sodium dodec낀 sulfate-polyacrylamide gel electrophoresis (SDS-PAGE)와 전기영동이적법을 시 행하였다. 살아있는 원충을 NHS-biotin으로 표지하여 표면 단백질을 분리하고 이를 질트리코모나스에 면역된 토끼 항혈청과 면역침전 시켰던 바 46, 60, 68, 90, 130 그리고 220 kDa에서 6개의 단백질이 항원성을 나타내었으며 질토리코모나스의 분리주인 HY-1, HV-15 및 ATCC 50148 주간에 차이는 없어 이들 6개 분획이 표면 항원성 발현에 중요한 역할을 할 것으로 생각된다.