Related Experiment Video
Updated: Jul 19, 2025
08:45
Characterizing RNA Modifications in Single Neurons Using Mass Spectrometry
Published on: April 21, 2022
2.4K
N6-methyladenosine RNA modifications: a potential therapeutic target for AML
Rong Hu1, Peiyun Liao1, Binyan Xu1
1Department of Hematology, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China.
Annals of Hematology
|August 7, 2023
Summary
N6-methyladenosine (m6A) RNA modification is crucial in normal and malignant hematopoiesis. This review covers m6A
Area of Science:
- Epigenetics
- Molecular Biology
- Hematology
Background:
- N6-methyladenosine (m6A) is a prevalent RNA modification influencing gene expression.
- m6A plays critical roles in various cellular processes, including development and disease.
- Dysregulation of m6A is implicated in hematological malignancies.
Purpose of the Study:
- To review current knowledge on m6A modification in hematopoiesis.
- To elucidate the molecular mechanisms of m6A in leukemia pathogenesis and drug resistance.
- To discuss the therapeutic potential of targeting m6A regulators in AML.
Main Methods:
- Literature review of recent studies on m6A in hematopoiesis and leukemia.
- Analysis of molecular mechanisms underlying m6A's role in cancer development.
- Discussion of therapeutic strategies targeting m6A pathways.
Main Results:
- m6A is essential for normal hematopoiesis and its dysregulation contributes to leukemia.
- m6A modifications impact RNA fate, affecting gene expression in cancer.
- m6A regulators are potential therapeutic targets for AML and drug resistance.
Conclusions:
- m6A is a key epigenetic regulator in normal and malignant hematopoiesis.
- Targeting m6A pathways offers promising therapeutic strategies for AML.
- Combination therapies involving m6A modulators may overcome drug resistance.
Related Concept Videos
02:23RNA Editing
9.0K
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...
9.0K
01:53RNA Stability
33.7K
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...
33.7K
02:31Nuclear Export of mRNA
7.7K
Before mRNAs are exported to the cytoplasm, it is crucial to check each mRNA for structural and functional integrity. Eukaryotic cells use several different mechanisms, collectively known as mRNA surveillance, to look for irregularities in mRNAs. Irregular or aberrant mRNA are rapidly degraded by various enzymes. If a defective mRNA escapes the surveillance, it would be translated into a protein which would either be non-functional or not function properly. One of the primary irregularities in...
7.7K
02:36Transfer RNA Synthesis
12.0K
One of the unique features of tRNA is the presence of modified bases. In some tRNAs, modified bases account for nearly 20% of the total bases in the molecule. Altogether, these unusual bases protect the tRNA from enzymatic degradation by RNases.
Each of these chemical modifications is carried by a specific enzyme, post-transcription. All of these enzymes have unique base and site-specificity. Methylation, the most common chemical modification, is carried by at least nine different enzymes, with...
Each of these chemical modifications is carried by a specific enzyme, post-transcription. All of these enzymes have unique base and site-specificity. Methylation, the most common chemical modification, is carried by at least nine different enzymes, with...
12.0K
01:35Pre-mRNA Processing: Modification of pre-mRNA Ends
9.5K
In eukaryotic cells, transcripts made by RNA polymerase are modified and processed before exiting the nucleus. Unprocessed RNA is called precursor mRNA or pre-mRNA to distinguish it from mature mRNA.
Once about 20-40 ribonucleotides have been joined together by RNA polymerase, a group of enzymes adds a cap to the 5' end of the growing transcript. In this process, a 5' phosphate is replaced by modified guanosine that has a methyl group attached (7-methyl guanosine). This 5' cap helps...
Once about 20-40 ribonucleotides have been joined together by RNA polymerase, a group of enzymes adds a cap to the 5' end of the growing transcript. In this process, a 5' phosphate is replaced by modified guanosine that has a methyl group attached (7-methyl guanosine). This 5' cap helps...
9.5K
02:41Chromatin Structure Regulates pre-mRNA Processing
7.0K
In eukaryotic cells, nascent mRNA transcripts need to undergo many post-transcriptional modifications to reach the cell cytoplasm and translate into functional proteins. For a long time, transcription and pre-mRNA processing were considered two independent events that occur sequentially in the cell. However, it has now been well established that transcription and pre-mRNA processing are two simultaneous processes that are precisely regulated inside the cell.
The chromatin structure, especially...
The chromatin structure, especially...
7.0K