...
首页> 外文期刊>Journal of Neuroimmunology: Official Bulletin of the Research Committee on Neuroimmunology of the World Federation of Neurology >Parental genes do not codominantly confer susceptibility to experimental autoimmune encephalomyelitis in F1 rats.
【24h】

Parental genes do not codominantly confer susceptibility to experimental autoimmune encephalomyelitis in F1 rats.

机译:亲本基因并未在F1大鼠中显着赋予实验性自身免疫性脑脊髓炎易感性。

获取原文
获取原文并翻译 | 示例
           

摘要

Lewis (LEW) and DA rats are highly susceptible to experimental autoimmune encephalomyelitis (EAE) induced with guinea pig myelin basic protein (MBP), but respond to different epitopes. The dominant epitope for LEW rats is MBP73-86, and disease is mediated primarily by Vbeta8.2 Th1 cells. DA rats lack conventional Vbeta8.2 T cells and do not respond to MBP73-86. Rather, DA rats respond to the cryptic epitope MBP63-81, which is not encephalitogenic for LEW rats. Responses to these neuroantigens were investigated in (DAxLEW) F1 hybrids to determine if experimental findings in inbred rats remain valid in more genetically complex models. Surprisingly, MBP63-81, a cryptic epitope for DA rats, induced moderate-to-severe EAE in F1 hosts, whereas MBP73-86, the dominant LEW epitope, was only weakly encephalitogenic in F1 hosts. The poor clinical response to MBP73-86 appears to be a consequence of an inability to expand Vbeta8.2 T cells. These results suggest that parental responses to neuroantigens are poor predictors for determining encephalitogenicity in F1 progeny.
机译:Lewis(LEW)和DA大鼠对豚鼠髓鞘碱性蛋白(MBP)诱导的实验性自身免疫性脑脊髓炎(EAE)高度敏感,但对不同的表位有反应。 LEW大鼠的主要抗原决定簇是MBP73-86,疾病主要由Vbeta8.2 Th1细胞介导。 DA大鼠缺乏常规的Vbeta8.2 T细胞,对MBP73-86无反应。相反,DA大鼠对隐性抗原决定簇MBP63-81产生反应,而MBP63-81对LEW大鼠没有致脑炎作用。在(DAxLEW)F1杂种中调查了对这些神经抗原的反应,以确定近交大鼠中的实验结果在基因更复杂的模型中是否仍然有效。令人惊讶的是,MBP63-81,一种对DA大鼠的隐性抗原决定簇,在F1宿主中诱导中度至重度EAE,而MBP73-86,占主导地位的LEW表位,在F1宿主中仅弱致脑病。对MBP73-86的不良临床反应似乎是无法扩增Vbeta8.2 T细胞的结果。这些结果表明,父母对神经抗原的反应对于确定F1后代的致脑病性而言是较差的预测指标。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号