在患有 Vulvar 状细胞癌及其前体的患者中循环的 MicroRNAs
Julia Rymuza1, Angelika Długosz2, Kamil Zalewski1
1Department of Molecular and Translational Oncology, Maria Sklodowska-Curie National Research Institute of Oncology, 02-781 Warsaw, Poland.
Non-coding RNA
|February 25, 2025
概括
研究人员在血中确定了31种微RNA (miRNA),这些微RNA可以区分皮状细胞癌 (VSCC) 和癌前病变. 这些循环的miRNA显示出潜在的生物标志物用于诊断部病变和预测癌症进展.
科学领域:
- 妇科瘤学 妇科瘤学
- 分子诊断学 分子诊断学
- 生物标志物发现发现
背景情况:
- 皮状细胞癌 (VSCC) 是一种罕见的恶性瘤,通常先有分化皮内瘤 (dVIN) 或高度皮内病变 (HSIL).
- 持续高风险的人类乳头瘤病毒 (hrHPV) 感染与VSCC和HSIL病例的子集有关.
- 准确区分前恶性和恶性部病变对于及时和有效的治疗至关重要.
研究的目的:
- 从患有VSCC,dVIN和HSIL的患者的血中量化循环中的microRNA (miRNA).
- 为了识别可以区分VSCC和癌前状况的差异表达miRNAs (DEMs).
- 探索这些DEMs作为 vulva病变的诊断和预后生物标志物的潜力.
主要方法:
- 从40名被诊断患有HSIL,dVIN或VSCC的患者收集了血样本.
- 使用定量实时PCR (qRT-PCR) 和TaqMan低密度阵列来分析miRNA表达特征.
- 进行了统计分析,以确定患者组之间的DEM.
主要成果:
- 在VSCC患者的血中,与癌前病变 (dVIN和HSIL) 患者相比,总共31个DEM的血显著上调.
- 没有发现miRNA表达的显著差异,可以根据hrHPV瘤状态区分VSCC.
- 鉴定到的DEM表明,从VSCC患者的血样本与患有癌前疾病的血样本之间存在明显的区别.
结论:
- 一个特定的循环miRNA小组可以区分VSCC和癌前性部病变.
- 这些DEM具有显著的潜力,作为 vulvar 病变的诊断和预后的非侵入性生物标志物.
- 进一步开发这些DEM可以帮助临床评估,有助于确认或排除癌症进展.
相关概念视频
MicroRNAs
3.0K
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...
3.0K
Abnormal Proliferation
4.4K
Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
4.4K


