The comparative studies of diagnostic efficiency of excretory-secretory antigens of Trichinella spiralis and Trichinella nativa were performed using blood sera of rats from Wistar line experimentally infected with Arc...The comparative studies of diagnostic efficiency of excretory-secretory antigens of Trichinella spiralis and Trichinella nativa were performed using blood sera of rats from Wistar line experimentally infected with Arctic trichinellae. For animal infection and antigen preparation Trichinella from muscles of wild carnivorous mammals from Arctic regions of Russia were used. When antigen from T. nativa larvae was used to analyze titers of sera of rats experimentally infected with Arctic Trichinella, a significant increase in efficacy ofELISAwas detected. E.g., sera of rats infected with trichinellae from ringed seals retained in ELISA with T. nativa antigen values higher than diagnostic level at titers of 1:6400 - 1:12800, while titer of those same sera when using T. spiralis antigen was no higher than 1:200 - 1:400.展开更多
目的鉴定旋毛虫(Trichinella spiralis,T1)与伪旋毛虫(T.pseudospiralis,T4)肌幼虫的差异蛋白。方法应用SDS-PAGE和双向电泳(two-dimensional gel electrophoresis,2-DE)对T1、T4肌幼虫的可溶性抗原与培养24h的ES抗原的蛋白组分进行分...目的鉴定旋毛虫(Trichinella spiralis,T1)与伪旋毛虫(T.pseudospiralis,T4)肌幼虫的差异蛋白。方法应用SDS-PAGE和双向电泳(two-dimensional gel electrophoresis,2-DE)对T1、T4肌幼虫的可溶性抗原与培养24h的ES抗原的蛋白组分进行分析。结果SDS-PAGE显示,T1肌幼虫可溶性抗原有22条蛋白带(221.62kDa~14.88kDa),其中6条为T1特异性蛋白带(59.72、44.37、23.66、22.36、18.26、16.34kDa);T4可溶性抗原蛋白有18条带(185.28kDa~14.27kDa),其中4条为T4特异性蛋白带(132.60、119.30、35.26、31.02kDa)。T1的ES抗原有10条蛋白带(113.21kDa~14.37kDa),T4的ES抗原有9条蛋白带(104.71kDa~14.51kDa),T1、T4肌幼虫ES抗原的蛋白带均不相同。2-DE显示,T1可溶性抗原有193±12个蛋白点,分子量主要为11kDa~22kDa、25kDa~64kDa及100kDa~144kDa,所对应的等电点(pI)分别为4.7~8.2、4.5~6.5及5~7;T4可溶性抗原有175±9个蛋白点,分子量主要为12kDa~21kDa及25kDa~90kDa,所对应的pI分别为4~9.5与4.5~9.6。T1的ES抗原具有82±6个蛋白点,分子量主要为13kDa~16kDa、18kDa~22kDa及40kDa~55kDa,所对应的pI分别为4~7、3.8~6.2及5~9;T4的ES抗原具有69±5个蛋白点,分子量主要为10kDa~15kDa、17kDa~25kDa及29kDa~55kDa,所对应的pI分别为4.7~6.5、4.6~6及5~7。结论旋毛虫肌幼虫可溶性抗原及ES抗原的蛋白组分与伪旋毛虫的明显不同。展开更多
文摘The comparative studies of diagnostic efficiency of excretory-secretory antigens of Trichinella spiralis and Trichinella nativa were performed using blood sera of rats from Wistar line experimentally infected with Arctic trichinellae. For animal infection and antigen preparation Trichinella from muscles of wild carnivorous mammals from Arctic regions of Russia were used. When antigen from T. nativa larvae was used to analyze titers of sera of rats experimentally infected with Arctic Trichinella, a significant increase in efficacy ofELISAwas detected. E.g., sera of rats infected with trichinellae from ringed seals retained in ELISA with T. nativa antigen values higher than diagnostic level at titers of 1:6400 - 1:12800, while titer of those same sera when using T. spiralis antigen was no higher than 1:200 - 1:400.
文摘目的鉴定旋毛虫(Trichinella spiralis,T1)与伪旋毛虫(T.pseudospiralis,T4)肌幼虫的差异蛋白。方法应用SDS-PAGE和双向电泳(two-dimensional gel electrophoresis,2-DE)对T1、T4肌幼虫的可溶性抗原与培养24h的ES抗原的蛋白组分进行分析。结果SDS-PAGE显示,T1肌幼虫可溶性抗原有22条蛋白带(221.62kDa~14.88kDa),其中6条为T1特异性蛋白带(59.72、44.37、23.66、22.36、18.26、16.34kDa);T4可溶性抗原蛋白有18条带(185.28kDa~14.27kDa),其中4条为T4特异性蛋白带(132.60、119.30、35.26、31.02kDa)。T1的ES抗原有10条蛋白带(113.21kDa~14.37kDa),T4的ES抗原有9条蛋白带(104.71kDa~14.51kDa),T1、T4肌幼虫ES抗原的蛋白带均不相同。2-DE显示,T1可溶性抗原有193±12个蛋白点,分子量主要为11kDa~22kDa、25kDa~64kDa及100kDa~144kDa,所对应的等电点(pI)分别为4.7~8.2、4.5~6.5及5~7;T4可溶性抗原有175±9个蛋白点,分子量主要为12kDa~21kDa及25kDa~90kDa,所对应的pI分别为4~9.5与4.5~9.6。T1的ES抗原具有82±6个蛋白点,分子量主要为13kDa~16kDa、18kDa~22kDa及40kDa~55kDa,所对应的pI分别为4~7、3.8~6.2及5~9;T4的ES抗原具有69±5个蛋白点,分子量主要为10kDa~15kDa、17kDa~25kDa及29kDa~55kDa,所对应的pI分别为4.7~6.5、4.6~6及5~7。结论旋毛虫肌幼虫可溶性抗原及ES抗原的蛋白组分与伪旋毛虫的明显不同。