首页> 美国政府科技报告 >Genetic Analysis of the Role of Neu Differentiation Factor (Heregulin) in Neu-Induced Mammary Carcinomas in the Mouse
【24h】

Genetic Analysis of the Role of Neu Differentiation Factor (Heregulin) in Neu-Induced Mammary Carcinomas in the Mouse

机译:Neu分化因子(Heregulin)在Neu诱导的小鼠乳腺癌中作用的遗传分析

获取原文

摘要

We examined the role of neu differentiation factor (NDF) in mammary tumorigenesis using transgenic mice. NDF is a ligand for ErbB4, a member of the ErbB family of tyrosine kinase receptors, of which two other members (EGFR and NEU) have been implicated in human breast cancer. Transgenic mice expressing a chimeric ligand having an NDF-beta-derived receptor binding domain within a TGF alpha backbone under an MMTV promote developed Harderian gland hyperplasias at high frequency. One mouse of 18 founders developed mammary carcinoma. Neither phenotype was transmissible to offspring. Other constructs, including NDF beta 2A, and mutant derived from that isoform, failed to express at significant levels in transgenic mice, precluding further analysis. In a separate Task, we attempted to identify genes that cooperate with c-neu in mammary tumorigenesis by proviral tagging using MMTV that is passed from female C3H mice to offspring via their milk. However, the strain of C3H that we used has experienced phenotypic drift since its original derivation, and was found to have a very low incidence of mammary carcinoma for reasons that are not clear. We did find evidence suggesting the presence of modifier loci in the FVB and/or C3H strains that influence the latency of neu-induced mammary tumors.

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