首页> 外文期刊>Genomics >PRR5 encodes a conserved proline-rich protein predominant in kidney: analysis of genomic organization, expression, and mutation status in breast and colorectal carcinomas.
【24h】

PRR5 encodes a conserved proline-rich protein predominant in kidney: analysis of genomic organization, expression, and mutation status in breast and colorectal carcinomas.

机译:PRR5编码一种在肾脏中占主导地位的富含脯氨酸的保守蛋白:分析乳腺癌和大肠癌的基因组组织,表达和突变状态。

获取原文
获取原文并翻译 | 示例
           

摘要

Loss of heterozygosity on chromosome 22q13.31 is a frequent event during human breast and colorectal carcinogenesis. Herein we characterize a novel gene at chromosome 22q13.31 designated PRR5. Alternative promoter usage and splicing converge to generate five PRR5 transcript variants with maximum mRNA expression in kidney. In vitro transcription/translation demonstrated that the five variants generate three protein isoforms differing in their N-terminal length. Mutational analysis of PRR5 in human breast and colorectal tumors did not reveal somatic mutations. However, mRNA expression analyses revealed PRR5 overexpression in a majority of colorectal tumors but substantial downregulation of PRR5 expression in a subset of breast tumors and reduced expression in two breast cancer cell lines. Treatment with trichostatin A increased PRR5 mRNA levels in BT549 and MDA-MB-231 cells, whereas 5'-aza-2'-deoxycytidine induced expression in MDA-MB-231 cells only. Thus, PRR5 may represent a potential candidate tumor suppressor gene in breast cancer.
机译:22q13.31号染色体上杂合性的丧失是人类乳房和大肠癌发生过程中的常见事件。在本文中,我们表征了在22q13.31染色体上被称为PRR5的新基因。替代启动子的使用和剪接会聚在一起,产生五个PRR5转录变体,在肾脏中具有最大的mRNA表达。体外转录/翻译表明,这五个变体产生了三种蛋白亚型,其N端长度不同。人类乳腺和大肠肿瘤中PRR5的突变分析未发现体细胞突变。然而,mRNA表达分析显示大多数结肠直肠肿瘤中PRR5过表达,但是在一部分乳腺肿瘤中PRR5表达显着下调,并且在两种乳腺癌细胞系中表达降低。用曲古抑素A处理可增加BT549和MDA-MB-231细胞中的PRR5 mRNA水平,而5'-氮杂-2'-脱氧胞苷仅诱导MDA-MB-231细胞中的表达。因此,PRR5可能代表乳腺癌中潜在的候选抑癌基因。

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