相关实验视频
Updated: Sep 12, 2025

08:25
Identification of Circular RNAs using RNA Sequencing
Published on: November 14, 2019
12.4K
循环RNA PVT1作为人类癌症的潜在生物标志物:系统性审查和元分析
Xiaoyan Ma1, Junheng Chen2, Chunbin Zhou3,4
1Cancer Hospital of Shantou University Medical College, Guangdong, China.
The International journal of biological markers
|August 5, 2025
概括
循环RNA PVT1 (circPVT1) 对人类癌症具有很强的诊断准确性. 这种瘤性circRNA在许多癌症类型中受到上调,可以作为早期检测和管理的有希望的生物标志物.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 生物标志物发现发现
背景情况:
- 循环RNAs (circRNAs) 是癌症发展和进展的关键调节者.
- 从PVT1基因衍生出的CircPVT1在各种人类癌症中经常被上调.
- CircPVT1充当微RNA海绵,调节下游基因表达并影响恶性行为.
研究的目的:
- 评估circPVT1作为人类癌症生物标志物的诊断准确性.
- 综合现有关于circPVT1在不同癌症类型的诊断性能的证据.
主要方法:
- 在PubMed,EMBASE,Web of Science和Cochrane数据库中进行了系统的文献搜索,截至2024年7月.
- 使用随机效应模型进行了元分析.
- 通过接受器操作员特征 (ROC) 曲线分析评估诊断性能,包括按癌症类型和组织分类的亚组分析.
主要成果:
- 包括1246名患者的12项研究.
- 对circPVT1的综合敏感度为0.83 (95% CI,0.77-0.88) 和特异性为0.80 (95% CI,0.73-0.87).
- 在ROC曲线下的面积 (AUC) 为0.89 (95% CI,0.86-0.91),表明了强大的诊断值.
结论:
- CircPVT1对人类癌症具有显著的诊断准确性.
- 这些发现支持circPVT1作为有前途的诊断生物标志物的潜力.
- 进一步了解circPVT1在癌症中的作用和机制得到了增强.
相关概念视频
lncRNA - Long Non-coding RNAs
8.9K
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...
8.9K
Non-LTR Retrotransposons
11.9K
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...
11.9K
Rous Sarcoma Virus (RSV) and Cancer
5.4K
Rous Sarcoma virus or RSV was discovered by F. Peyton Rous in the year 1911 as a filterable transmissible agent that could cause tumors in chickens. He won a Nobel Prize for this discovery in 1966. His experiments clearly demonstrated that some cancers could be caused by infectious agents and led to the discovery of many more cancer-causing viruses in animals as well as humans.
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...
5.4K
piRNA - Piwi-interacting RNAs
7.0K
PIWI-interacting RNAs, or piRNAs, are the most abundant short non-coding RNAs. More than 20,000 genes have been found in humans that code for piRNAs while only 2000 genes have been found for miRNAs. piRNAs can act at the transcriptional and post-transcriptional levels and have a vital role in silencing transposable elements present in germ cells. They are also involved in epigenetic silencing and activation. Previously, they were thought to function only in germ cells but new evidence suggests...
7.0K

