针对局部清细胞细胞癌的基于微RNA的预后特征:Bio-miR研究
Álvaro Pinto-Marín1, Lucía Trilla-Fuertes2, Jesús Miranda Poma3
1Medical Oncology Service, Hospital Universitario La Paz, IDIPAZ, Madrid, Spain. alvaro.pinto@salud.madrid.org.
British journal of cancer
|May 7, 2025
概括
一种新的microRNA签名Bio-miR准确地预测了清细胞细胞癌 (ccRCC) 患者的复发风险. 这种生物标志物有助于对患者进行量身定制的治疗,并识别新的治疗点.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 生物标志物发现发现
背景情况:
- 三分之二的细胞癌 (RCC) 患者患有局部疾病,但很大一部分会复发.
- 预后生物标志物对于改善风险分层和指导复发性RCC患者的治疗至关重要.
- 这项研究旨在评估microRNA签名作为局部透明细胞RCC (ccRCC) 的预后生物标志物,并为高风险患者确定新的治疗点.
研究的目的:
- 确定微RNA特征作为局部透明细胞RCC (ccRCC) 的预后生物标志物的临床实用性.
- 在高复发风险的ccRCC患者中确定新的治疗点.
- 开发一种microRNA签名,用于预测ccRCC中的疾病复发.
主要方法:
- 来自T1-T2 ccRCC患者的发现队列 (n=88) 的微RNA档案使用微阵列进行了分析.
- 在独立队列 (英国,西班牙,TCGA) 中使用qPCR定义和验证了预测复发的microRNA签名.
- 蛋白质组学,RNA-seq和微阵列 (SAM) 的显著性分析被用来识别与复发风险相关的生物过程.
主要成果:
- 一个9-microRNA签名,Bio-miR,有效地将患者分为低风险和高风险组,在5年无病生存期 (DFS) 中存在显著差异.
- 验证队列证实了Bio-miR的预后价值,显示了在不同患者群体中持续预测复发.
- 蛋白质组和转录组分析揭示了高风险瘤中焦点粘附,新陈代谢,血管生成,补体激活和免疫反应等途径的放松调节.
结论:
- 生物-miR签名准确地将非转移性ccRCC患者划分为复发风险低和高的患者.
- 这对临床试验中的治疗决策,随访策略和潜在的辅助疗法选择有重大影响.
- 生物-miR识别了放松管制的治疗点,包括血管生成,免疫反应,新陈代谢和补体激活,为分子驱动的临床试验铺平了道路.
相关概念视频
MicroRNAs
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA ends...
MicroRNAs
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA ends...
MicroRNAs
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...


