作为胰腺癌的非侵入性生物标志物的循环miRNAs:一项基于等离子体的两相研究
Vlad Alexandru Ionescu1,2, Gina Gheorghe1,2, Coralia Bleotu3,4,5
1Faculty of Medicine, University of Medicine and Pharmacy Carol Davila Bucharest, 050474 Bucharest, Romania.
Journal of clinical medicine
|September 27, 2025
概括
这项研究确定了血中5种微RNA (miRNA),这些微RNA在晚期胰腺癌患者中显著升高. 这些miRNA显示出作为检测和分期胰腺癌的最小侵入性生物标志物的潜力.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 生物标志物 生物标志物
背景情况:
- 微RNAs (miRNAs) 越来越多地被认为是胰腺癌的诊断和预后价值.
- 识别特定的循环miRNA可以帮助早期检测和患者管理.
研究的目的:
- 确定一个循环miRNAs的面板作为晚期胰腺癌的潜在生物标志物.
- 在患者血样本中验证候选miRNAs的差异表达.
主要方法:
- 未来试点研究涉及23名晚期胰腺癌患者和10名健康对照.
- 实时PCR用于在聚合血中选176个miRNA,并在单个样本中验证选择的候选物.
- 使用IBM SPSS统计版本29进行的统计分析.
主要成果:
- 在胰腺癌患者和对照人群之间,22个miRNAs的表达有差异.
- 五种miRNAs (hsa-miR-100-5p,hsa-miR-122-5p,hsa-miR-885-5p,hsa-miR-34a-5p,hsa-miR-193a-5p) 在癌症患者中显著上调 (p < 0.001).
- 这些miRNAs的循环水平与瘤阶段相关 (p < 0.05).
结论:
- 一个独特的循环miRNA签名与晚期胰腺癌有关.
- 已识别的miRNAs有望成为胰腺癌检测和分期的最小侵入性生物标志物.
- 需要进一步的大规模,多中心的研究来证实临床效用,特别是在早期的疾病.
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...
lncRNA - Long Non-coding RNAs
In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA (lncRNA)...
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...


