Related Experiment Video
Updated: Jan 14, 2026

08:56
A Method for Measuring RNA N6-methyladenosine Modifications in Cells and Tissues
Published on: December 5, 2016
11.3K
Alternative Polyadenylation in Aging and Aging-Related Diseases
Mengqi Chen1, Xiangyu Zhu2, Lejia Hang2
1Department of Geriatrics, The Fourth Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.
Aging and Disease
|January 12, 2026
Summary
Alternative polyadenylation (APA) regulates gene expression and impacts aging. This review explores APA's role in age-related diseases, suggesting it as a potential therapeutic target for aging biology.
Area of Science:
- Molecular Biology
- Genomics
- Aging Research
Background:
- Aging is a primary risk factor for numerous chronic diseases.
- Understanding aging mechanisms is crucial for developing effective interventions.
- Non-coding genomic regions, particularly alternative polyadenylation (APA), are increasingly recognized as key gene expression regulators.
Purpose of the Study:
- To review the current understanding of alternative polyadenylation (APA) in the context of aging.
- To explore the involvement of APA in various age-related pathologies.
- To highlight APA as a potential therapeutic target for aging and associated diseases.
Main Methods:
- Literature review of recent research on APA and aging.
- Analysis of APA's impact on mRNA 3' UTR length and its downstream effects.
- Synthesis of findings related to APA in musculoskeletal, neurodegenerative, cardiovascular, and respiratory diseases.
Main Results:
- Alternative polyadenylation (APA) significantly influences mRNA stability, localization, and translation, affecting protein expression.
- Approximately 70% of human genes are subject to APA regulation, indicating its broad impact on cellular functions.
- APA plays a role in the pathogenesis of multiple age-related diseases, including musculoskeletal, neurodegenerative, cardiovascular, and respiratory conditions.
Conclusions:
- Alternative polyadenylation (APA) is a critical regulator in aging biology.
- APA contributes mechanistically to the development of age-associated diseases.
- APA represents a promising novel therapeutic target for interventions in aging and related pathologies.
Related Concept Videos
RNA Editing
9.8K
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...
9.8K
Alternative RNA Splicing
24.6K
Alternative RNA splicing is the regulated splicing of exons and introns to produce different mature mRNAs from a single pre-mRNA. Unlike in constitutive splicing where a single gene produces a single type of mRNA, alternative splicing allows an organism to produce multiple proteins from a single gene and plays an important role in protein diversity.
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...
24.6K
RNA Splicing
60.3K
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...
60.3K
Nuclear Export of mRNA
8.7K
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...
8.7K
RNA Stability
35.6K
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...
35.6K
Chromatin Structure Regulates pre-mRNA Processing
8.1K
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...
8.1K

