在前列腺癌中,TMPRSS2和ETS转录因子基因的反复融合
Scott A Tomlins1, Daniel R Rhodes, Sven Perner
1Department of Pathology, University of Michigan Medical School, 1301 Catherine Street, Ann Arbor, MI 48109-0602, USA.
研究人员在前列腺癌中发现了特定的基因融合 (TMPRSS2-ERG/ETV1),由雄激素反应元素驱动. 这些重组是常见的,并影响癌症的发展,提供新的诊断和治疗点.
科学领域:
- 遗传学 是一个遗传学.
- 在瘤学瘤学.
- 生物信息学是一种生物信息学.
背景情况:
- 经常发生的染色体重组在常见癌症中还不太清楚.
- 识别瘤性异常对于理解癌症的发展至关重要.
研究的目的:
- 用生物信息学方法识别前列腺癌中瘤原性染色体异常的候选者.
- 描述涉及ETS转录因子的反复发生的基因融合.
主要方法:
- 异常基因表达的生物信息学分析.
- 光在位杂交 (FISH) 检测基因重组.
- 细胞系实验以调查促进体活动.
主要成果:
- ERG和ETV1被确定为前列腺癌中异常ETS转录因子.
- 发现了TMPRSS2 (5' UTR) 到ERG或ETV1的复发性基因融合.
- 在29个前列腺癌样本中的23个中存在ERG或ETV1的重新排列.
- 对雄激素敏感的TMPRSS2促销元件调解ETS过度表达.
结论:
- 在前列腺癌中,TMPRSS2-ERG/ETV1基因融合是常见的.
- 这些重组是由雄激素响应促进体驱动的.
- 这些发现对癌瘤的发展,分子诊断和前列腺癌的治疗有意义.
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