Involvement of noncoding RNAs in epigenetic modifications of esophageal cancer

Yuhang Xiao1, Min Su2, Wei Ou3

  • 1Department of Pharmacy, Xiangya Hospital of Xiangya School of Medicine, Central South University, Changsha, PR China.

Insights

Noncoding RNAs, like long noncoding RNAs (lncRNAs) and microRNAs (miRNAs), play a key role in the epigenetic regulation of esophageal cancer (EC). This review highlights their involvement in EC development and progression.

Area of Science:

  • Oncology
  • Epigenetics
  • Molecular Biology

Background:

  • Esophageal cancer (EC) is a significant cause of cancer mortality.
  • Epigenetic alterations, including DNA methylation and histone modifications, are implicated in EC gene expression.
  • Noncoding RNAs (ncRNAs) are emerging as critical players in EC's epigenetic landscape.

Purpose of the Study:

  • To review recent advancements in understanding the epigenetic roles of noncoding RNAs in esophageal cancer.
  • To elucidate how lncRNAs and miRNAs contribute to EC development and progression through epigenetic mechanisms.

Main Methods:

  • Literature review focusing on recent studies.
  • Analysis of research on noncoding RNA functions in esophageal cancer epigenetics.
  • Synthesis of findings on DNA methylation, histone modifications, and ncRNA interactions.

Main Results:

  • Noncoding RNAs, particularly lncRNAs and miRNAs, are integral to epigenetic regulation in EC.
  • These ncRNAs influence gene expression patterns critical for EC pathogenesis.
  • Specific ncRNAs have been identified as key mediators of epigenetic changes in EC.

Conclusions:

  • Noncoding RNAs represent a crucial layer of epigenetic control in esophageal cancer.
  • Targeting ncRNA-mediated epigenetic pathways offers potential therapeutic strategies for EC.
  • Further research into ncRNA-epigenetic interactions is vital for advancing EC treatment.

Related Concept Videos

Epigenetic Regulation01:46

Epigenetic Regulation

Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
33.5K
Epigenetic Regulation01:37

Epigenetic Regulation

Epigenetic changes alter the physical structure of the DNA without changing the genetic sequence and often regulate whether genes are turned on or off. This regulation ensures that each cell produces only proteins necessary for its function. For example, proteins that promote bone growth are not produced in muscle cells. Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
X-chromosome...
3.7K
lncRNA - Long Non-coding RNAs02:39

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...
9.8K
siRNA - Small Interfering RNAs02:30

siRNA - Small Interfering RNAs

Small interfering RNAs, or siRNAs, are short regulatory RNA molecules that can silence genes post-transcriptionally, as well as the transcriptional level in some cases. siRNAs are important for protecting cells against viral infections and silencing transposable genetic elements.
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the...
18.4K
piRNA - Piwi-interacting RNAs02:57

piRNA - Piwi-interacting RNAs

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...
7.5K
Histone Modification02:32

Histone Modification

The histone proteins have a flexible N-terminal tail extending out from the nucleosome. These histone tails are often subjected to post-translational modifications such as acetylation, methylation, phosphorylation, and ubiquitination. Particular combinations of these modifications form “histone codes” that influence the chromatin folding and tissue-specific gene expression.
Acetylation
The enzyme histone acetyltransferase adds acetyl group to the histones. Another enzyme, histone...
16.0K