Functions of N6-methyladenosine and its role in cancer

Liuer He1,2, Huiyu Li1,2, Anqi Wu1

  • 1Department of Pathology, Xiangya Hospital, School of Basic Medical Sciences, Central South University, Changsha, 410008, Hunan Province, China.

Molecular Cancer
|December 6, 2019
PubMed

Insights

N6-methyladenosine (m6A) regulates gene expression and cellular processes. This review explores m6A

Area of Science:

  • Epigenetics and RNA Biology
  • Molecular Oncology

Background:

  • N6-methyladenosine (m6A) is the most abundant internal modification on eukaryotic messenger RNA (mRNA).
  • m6A regulates gene expression, impacting critical cellular processes such as self-renewal, differentiation, invasion, and apoptosis.
  • The dynamic regulation of m6A involves methyltransferases, demethylases, and reader proteins, influencing RNA metabolism.

Purpose of the Study:

  • To review recent advances in the research of m6A enzymes.
  • To highlight the mechanisms by which m6A influences cancer pathogenesis and progression.
  • To discuss potential therapeutic targets related to m6A in cancer treatment.

Main Methods:

  • Literature review of recent scientific publications on m6A.
  • Analysis of the roles of m6A methyltransferases, demethylases, and reader proteins.
  • Examination of m6A's involvement in the regulation of oncogenes and tumor suppressor genes.

Main Results:

  • m6A modification is crucial for regulating gene expression and cellular functions.
  • Aberrant m6A levels are implicated in the pathogenesis and progression of various cancers.
  • Specific m6A-related genes (e.g., BRD4, MYC, SOCS2, EGFR) are dysregulated in cancer.

Conclusions:

  • m6A plays a significant role in cancer development by modulating tumor-related gene expression.
  • Understanding m6A regulatory mechanisms provides insights into cancer pathogenesis.
  • m6A-related enzymes and pathways represent promising targets for novel cancer therapies.

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.
33.3K
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
Biosynthesis of Nucleic Acids01:28

Biosynthesis of Nucleic Acids

Nucleic acid biosynthesis is a fundamental biochemical process that produces the purine and pyrimidine nucleotides essential for DNA and RNA synthesis. This pathway maintains a balanced nucleotide pool, preventing imbalances that could jeopardize genetic integrity and cellular function. Given the crucial role of nucleotides, their synthesis is tightly regulated to ensure proper cellular homeostasis.Purine BiosynthesisThe biosynthesis of purine nucleotides begins with ribose-5-phosphate, a...
864
MicroRNAs01:22

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...
3.7K
MicroRNAs01:22

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...
23.8K
Adaptive Mechanisms in Cancer Cells02:53

Adaptive Mechanisms in Cancer Cells

Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
6.8K