Detection and Application of RNA Editing in Cancer

Mengjia Qian1, Claudio Spada1, Xiangdong Wang2

  • 1Zhongshan Hospital Institute of Clinical Science, Fudan University Shanghai Medical College, Shanghai, China.

Insights

RNA editing alters genetic information after transcription and is linked to cancer. Identifying RNA editing sites offers insights into carcinogenesis and aids in cancer research.

Area of Science:

  • Molecular Biology
  • Genetics
  • Oncology

Background:

  • RNA editing is a post-transcriptional modification that changes genetic information within RNA molecules.
  • Aberrant RNA editing has been implicated in the development and progression of various cancers.

Purpose of the Study:

  • To review the primary types of RNA editing.
  • To elucidate the role of RNA editing in cancer.
  • To discuss current detection methodologies and future challenges in RNA editing research.

Main Methods:

  • Literature review of RNA editing mechanisms.
  • Analysis of studies linking RNA editing to carcinogenesis.
  • Overview of existing RNA editing detection techniques.

Main Results:

  • RNA editing encompasses diverse mechanisms influencing gene expression.
  • Specific RNA editing events are associated with tumorigenesis.
  • Current methods for detecting RNA editing have limitations.

Conclusions:

  • Understanding RNA editing is crucial for cancer research.
  • Further development of detection methods is needed to fully explore RNA editing's role in cancer.
  • Targeting RNA editing pathways may offer novel therapeutic strategies.

Related Concept Videos

RNA Editing02:23

RNA Editing

RNA editing is a post-transcriptional modification where a precursor mRNA (pre-mRNA) nucleotide sequence is changed by base insertion, deletion, or modification. The extent of RNA editing varies from a few hundred bases, in mitochondrial DNA of trypanosomes, to a just single base, in nuclear genes of mammals. Even a single base change in the pre-mRNA can convert a codon for one amino acid into the codon for another amino acid or a stop codon. This type of re-coding can significantly affect the...
9.9K
RNA Interference01:23

RNA Interference

RNA interference (RNAi) is a process in which a small non-coding RNA molecule blocks the post-transcriptional expression of a gene by binding to its messenger RNA (mRNA) and preventing the protein from being translated.
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
28.2K
RNA Structure01:23

RNA Structure

Overview
The basic structure of RNA consists of a five-carbon sugar and one of four nitrogenous bases. Although most RNA is single-stranded, it can form complex secondary and tertiary structures. Such structures play essential roles in the regulation of transcription and translation.
Different Types of RNA Have the Same Basic Structure
There are three main types of ribonucleic acid (RNA): messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). All three RNA types consist of a...
79.2K
RNA Stability01:53

RNA Stability

Intact DNA strands can be found in fossils, while scientists sometimes struggle to keep RNA intact under laboratory conditions. The structural variations between RNA and DNA underlie the differences in their stability and longevity. Because DNA is double-stranded, it is inherently more stable. The single-stranded structure of RNA is less stable but also more flexible and can form weak internal bonds. Additionally, most RNAs in the cell are relatively short, while DNA can be up to 250 million...
35.8K
RNA Splicing01:32

RNA Splicing

Splicing is the process by which eukaryotic RNA is edited before its translation into protein. The RNA strand transcribed from eukaryotic DNA is called the primary transcript. The primary transcripts that become mRNAs are called precursor messenger RNAs (pre-mRNAs). Eukaryotic pre-mRNA contains alternating sequences of exons and introns. Exons are nucleotide sequences that code for proteins, whereas introns are the non-coding regions. In RNA splicing, introns are removed and exons are bonded...
60.7K
Eukaryotic RNA Polymerases00:58

Eukaryotic RNA Polymerases

RNA Polymerase (RNAP) is conserved in all animals, with bacterial, archaeal, and eukaryotic RNAPs sharing significant sequence, structural, and functional similarities. Among the three eukaryotic RNAPs, RNA Polymerase II is most similar to bacterial RNAP in terms of both structural organization and folding topologies of the enzyme subunits. However, these similarities are not reflected in their mechanism of action.
All three eukaryotic RNAPs require specific transcription factors, of which the...
27.2K