The function of mRNA quality control in aging and age-related diseases
Seokjun G Ha1, Hyunwoo C Kwon1, Jongsun Lee1
1Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, South Korea.
Abstract:
Aging is a complex biological process characterized by the gradual decline of physiological and molecular functions and increased susceptibility to age-associated diseases. Emerging evidence indicates the role of mRNA quality control mechanisms in the regulation of aging and longevity. This review focuses on the function of mRNA surveillance mechanisms, including nonsense-mediated mRNA decay, nonstop decay, and no-go decay, in aging and age-related diseases. We discuss the critical roles of these pathways in maintaining mRNA quality and preventing the accumulation of aberrant transcripts, which can contribute to aging and age-related disorders. Specifically, we discuss the function of nonsense-mediated mRNA decay in aging processes and age-related diseases, including cancer and neurodegenerative disorders. We also review the safeguarding roles of nonstop decay and no-go decay in preventing the accumulation of faulty mRNAs and proteins associated with various diseases. We explore the potential functions of additional mRNA surveillance and the associated signaling pathways, such as ribosome-associated quality control, in aging and age-related diseases. Understanding the intricate relationship between mRNA surveillance mechanisms and aging may provide key information for developing potential therapeutics that boost these pathways for delaying aging and treating age-related diseases.
Insights
mRNA quality control pathways, like nonsense-mediated mRNA decay (NMD), nonstop decay (NSD), and no-go decay (NGD), are crucial for healthy aging and preventing age-related diseases by clearing faulty transcripts.
Area of Science:
- Molecular Biology
- Genetics
- Aging Research
Background:
- Aging is a natural process involving functional decline and increased disease risk.
- mRNA quality control mechanisms are increasingly recognized for their role in aging and longevity.
- Aberrant transcripts can accumulate and contribute to age-related pathologies.
Purpose of the Study:
- To review the function of key mRNA surveillance pathways in aging.
- To explore the roles of nonsense-mediated mRNA decay (NMD), nonstop decay (NSD), and no-go decay (NGD) in age-related diseases.
- To discuss the potential of targeting these pathways for therapeutic interventions.
Main Methods:
- Literature review of mRNA surveillance mechanisms and aging.
- Analysis of the roles of NMD, NSD, and NGD in cellular aging.
- Exploration of ribosome-associated quality control (RQC) in aging processes.
Main Results:
- NMD, NSD, and NGD pathways are vital for maintaining mRNA quality during aging.
- Dysfunction in these pathways is linked to aging and diseases like cancer and neurodegeneration.
- These mechanisms prevent the buildup of harmful mRNA and protein products.
Conclusions:
- mRNA surveillance pathways are critical regulators of aging and longevity.
- Targeting NMD, NSD, and NGD offers potential therapeutic strategies for age-related diseases.
- Further research into mRNA quality control could unlock new anti-aging interventions.
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