相关实验视频

Updated: Apr 15, 2026

Microarray-based Identification of Individual HERV Loci Expression: Application to Biomarker Discovery in Prostate Cancer

Microarray-based Identification of Individual HERV Loci Expression: Application to Biomarker Discovery in Prostate Cancer

Published on: November 2, 2013

这种BRAF假基因作为一种具有竞争力的内源RNA而起作用,并且在体内诱导淋巴瘤

Florian A Karreth¹, Markus Reschke¹, Anna Ruocco¹

¹Cancer Research Institute, Beth Israel Deaconess Cancer Center, Department of Medicine and Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.

|April 7, 2015

概括

伪基因,如Braf-rs1,可以通过作为竞争性内源RNA (ceRNA) 来驱动癌症. 这项研究表明,假基因过度表达导致小鼠的淋巴瘤,突出了它们在癌症发展中的致癌潜力.

科学领域:

遗传学是一个遗传学.
在瘤学瘤学.
分子生物学分子生物学

背景情况:

伪基因在生理学和疾病中发挥了作用.
实验室研究表明,伪基因有助于细胞转化.
在体内证据将伪基因与癌症发展联系起来是有限的.

研究的目的:

调查伪基因在癌症发展中的体内作用.
为了确定假基因过度表达是否会导致恶性瘤.
探索伪基因的致癌机制,特别是Braf-rs1.

主要方法:

改造小鼠过度表达B-Raf假基因Braf-rs1及其变体.
在工程小鼠中评估瘤发育和特征.
研究了瘤活性的机制,包括竞争性内源RNA (ceRNA) 功能和MAPK通路激活.
分析了人类癌症样本,以检测人类骨科BRAFP1.1.中的异常.

主要成果:

在小鼠中,Braf-rs1或其变体的过度表达导致了侵略性的扩散性大B细胞淋巴瘤.
Braf-rs1及其人类正义基因BRAFP1的功能是ceRNA,增加了BRAF表达和MAPK激活.
在人类癌症中,包括B细胞淋巴瘤中,BRAFP1的转录或基因组异常常见.

结论:

伪基因具有致癌潜力,并且可以在体内促进癌症的发展.
伪基因通过ceRNA介导的microRNA封存是一种潜在的驱动癌症的机制.
像BRAFP1这样的伪基因的异常在人类癌症中是相关的,这表明它们具有临床意义.

更多相关视频

RNA Next-Generation Sequencing and a Bioinformatics Pipeline to Identify Expressed LINE-1s at the Locus-Specific Level

RNA Next-Generation Sequencing and a Bioinformatics Pipeline to Identify Expressed LINE-1s at the Locus-Specific Level

Published on: May 19, 2019

Isolating Malignant and Non-Malignant B Cells from lck:eGFP Zebrafish

Isolating Malignant and Non-Malignant B Cells from lck:eGFP Zebrafish

Published on: February 22, 2019

相关概念视频

Non-LTR Retrotransposons

Non-LTR Retrotransposons

As the name suggests, non-LTR retrotransposons lack the long terminal repeats characteristic of the LTR retrotransposons. Additionally, both LTR and non-LTR retrotransposons use distinct mechanisms of mobilization. Non-LTR retrotransposons are further divided into two classes - Long interspersed nuclear elements (LINEs) and short interspersed nuclear elements (SINEs), both of which occur abundantly in most mammals, including humans. Some of the active non-LTR retrotransposons in humans are L1...

lncRNA - Long Non-coding RNAs

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...