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微RNA表达特征-潜在的分子歧视乳头甲状腺癌亚型的乳头甲状腺癌

Horatiu Silaghi¹, Laura Ancuța Pop², Carmen Emanuela Georgescu³

¹Department of Surgery V, "Iuliu Hatieganu" University of Medicine and Pharmacy Cluj-Napoca, 8 Victor Babes Street, 400012 Cluj-Napoca, Romania.

|January 23, 2024

概括

这项研究确定了两个microRNA签名,以区分乳头甲状腺癌 (PTC) 亚型,帮助分子诊断. 这些发现提高了现有的甲状腺癌分子分类器的诊断性能.

科学领域:

分子生物学分子生物学
在瘤学瘤学.
遗传学是一个遗传学.

背景情况:

微RNA (miRNA) 在乳头甲状腺癌 (PTC) 的诊断和进展中起着至关重要的作用.
区分特定的PTC亚型对于准确的诊断和治疗策略至关重要.

研究的目的:

确定一种特定的miRNA配置文件,能够区分PTC的透性卵泡变体 (iFVPTC) 和PTC的常规变体 (cPTC).

主要方法:

一项涉及从43名PTC患者 (17名iFVPTC,26名cPTC) 的抛嵌入组织中提取RNA的横截面研究.
使用定量逆转录聚合酶连锁反应 (qRT-PCR) 来评估9种特定miRNA的表达.

主要成果:

在cPTC和iFVPTC之间观察到不同的miRNA表达模式.
在这两种亚型中,有五种miRNAs (miR-146b-5p,miR-181a-5p,miR-221-3p,miR-21-5p,miR-222-3p) 被改变.
两个miRNAs (miR-20b-5p,miR-21-5p) 仅在cPTC中显著表达.
在两组中都确定了miRNA表达和临床数据 (年龄,瘤大小,淋巴结转移) 之间的相关性,在iFVPTC和cPTC中与这些参数相关的特定miRNA.

结论:

确定了两个miRNA的签名,证实了PTC的两个组织学亚型之间的分子差异.
这些发现代表了甲状腺癌分子诊断的进步.
识别的miRNA签名可能会提高现有的PTC分子分类器的诊断准确性.

关键词:

生物标志物生物标志物诊断诊断诊断诊断诊断诊断皮囊性甲状腺癌的毛囊变体.这就是miRNAs.皮囊性甲状腺癌是什么?甲状腺癌是一种癌症.瘤发生发生.

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相关概念视频

MicroRNAs

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...