在骨髓质疏松症候群患者中的炎症-miRs 概况
Paola Montes1,2, Iryna Rusanova3,4,5, Elena Cornejo6
1Centro de Investigación Biomédica, Departamento de Fisiología, Facultad de Medicina, Instituto de Biotecnología, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016 Granada, Spain.
International journal of molecular sciences
|June 27, 2024
概括
微RNAs (miRNAs) 在骨髓分裂综合征 (MDS) 中失调,影响炎症和氧化应激. 用5-azacitidine (5-AZA) 治疗可能会恢复MDS患者的miRNA表达水平.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 在瘤学瘤学.
背景情况:
- 骨髓发育综合征 (MDS) 是一组克隆性造血干细胞疾病.
- 患MDS的病因因素包括免疫学,氧化应激和炎症因素,这些因素是微RNA (miRNA) 的潜在目标.
研究的目的:
- 评估未接受治疗的和接受了5-azacitidine (5-AZA) 治疗的骨髓分裂综合征 (MDS) 患者的微RNA (miRNA) 表达特征.
- 研究特定miRNAs,疾病进展和MDS的预后风险因素之间的关系.
主要方法:
- 定量实时聚合酶链反应 (qRTPCR) 用于测量边缘血液样本中选择的与炎症相关的miRNAs (miR-18a,miR-21,miR-34a,miR-146a).
- 从20个对照组和24名MDS患者 (未接受治疗和接受5-AZA治疗) 采集了样本.
主要成果:
- 与对照组相比,在未经治疗的MDS患者中观察到不同的miRNA表达特征,其中miR-18a,miR-21和miR-34a的显著过度表达.
- 在疾病进展过程中没有检测到miRNA轮变化,但5-AZA治疗倾向于恢复miRNA表达水平.
- 较高的miR-18a和miR-34a表达与高风险的MDS和较低的谷氨过氧化酶活性相关,同时增加了促炎性细胞因子.
结论:
- 微RNA放松调节与MDS的发展有关,可能调节氧化还原和炎症反应.
- 在MDS患者中,5-AZA治疗显示出调节miRNA表达的潜力.
- 特定的miRNA可以作为MDS风险分层的潜在生物标志物.
相关概念视频
01:22MicroRNAs
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...
01:22MicroRNAs
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...
01:22MicroRNAs
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...