相关实验视频

Updated: Jun 7, 2025

Characterization of Functionally Associated miRNAs in Glioblastoma and their Engineering into Artificial Clusters for Gene Therapy

Characterization of Functionally Associated miRNAs in Glioblastoma and their Engineering into Artificial Clusters for Gene Therapy

Published on: October 4, 2019

在具有野生型和突变异位基因酸脱酶 (IDH) 基因型的质瘤患者中,miRNA表达与向mRNA转录的相关性模式

A A Bondarev¹, A S Evpak¹, A L Novoselov¹

¹Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, 117997 Russian Federation.

|November 14, 2024

概括

与IDH野生型质瘤相比,具有突变的异酸脱酶 (IDHmut) 的低级质瘤显示出较低的微RNA调节能力. 这表明它们更好的预后和宿主抵抗瘤进展的潜在机制.

科学领域:

神经瘤学神经瘤学
分子生物学分子生物学
遗传学是一个遗传学.

背景情况:

低级质瘤表现出不同的遗传表型:异酸脱酶 (IDH) 突变 (IDHmut) 和IDH野生型 (IDHwt).
一般来说,IDHmut质瘤对治疗的反应更好,存活率比IDHwt质瘤更长.

研究的目的:

为了研究IDHmut和IDHwt低度质瘤样本之间的microRNA-mRNA对的差异性共同表达.
了解微RNA介导调节在质瘤预后中的作用.

主要方法:

对225,000个微RNA-mRNA对进行差异性协同表达的分析.
在IDHmut和IDHwt质瘤样本中,微RNA水平与其潜在的mRNA标之间的相关性分析.

主要成果:

特定的mRNAs (ELN,ARL4C,C9orf64,PLAT,FKBP9) 在IDHwt质瘤中升高,与侵略性进展相关.
特定的miRNAs (miRNA-182,miRNA-455,miRNA-891a) 在IDHmut质瘤中升高,与负面预后相关.
大多数有差异调节的微RNA-mRNA对在IDHmut样本中显示出较弱的正相关性,在IDHwt样本中显示出负相关性.

结论:

与IDHwt质瘤相比,IDHmut质瘤的微RNA介导调节能力降低.
这种降低的调节能力可能导致瘤活力下降和IDHmut质瘤中增强宿主抵抗力,解释了它们更有利的预后.

关键词:

在LGGLGGLGGLGGLGGLGGLGGLGGLGGL 不同的表达方式,不同的表达方式.低度质瘤是一种低度的质瘤.这是一个微型RNA.

更多相关视频

Evaluation of Biomarkers in Glioma by Immunohistochemistry on Paraffin-Embedded 3D Glioma Neurosphere Cultures

Evaluation of Biomarkers in Glioma by Immunohistochemistry on Paraffin-Embedded 3D Glioma Neurosphere Cultures

Published on: January 9, 2019

A Protocol for Explant Cultures of IDH1-mutant Diffuse Low-grade Gliomas

A Protocol for Explant Cultures of IDH1-mutant Diffuse Low-grade Gliomas

Published on: May 9, 2025

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...