Splice age: mTORC1-mediated RNA splicing in metabolism and ageing

Area of Science:

• Molecular Biology
• Aging Research
• Genetics

Background:

• The target of rapamycin complex 1 (mTORC1) is a central regulator of cell growth, metabolism, and aging.
• Inhibition of mTORC1 signaling is known to extend lifespan in various organisms.

Purpose of the Study:

• To investigate the role of pre-mRNA splicing factors and alternative splicing in mediating mTORC1 signaling.
• To explore if modulating these splicing processes can enhance longevity.

Main Methods:

• Utilized the model organism Caenorhabditis elegans.
• Analyzed the impact of altering pre-mRNA splicing factors on mTORC1 pathway activity.
• Assessed the effects on lifespan and age-related phenotypes.

Main Results:

• Demonstrated that modulation of pre-mRNA splicing factors directly influences mTORC1 signaling.
• Showed that specific alterations in alternative splicing patterns are linked to mTORC1 activity.
• Found that manipulating splicing factors can significantly enhance longevity in C. elegans.

Conclusions:

• Pre-mRNA splicing and alternative splicing are critical mediators of mTORC1 signaling.
• Targeting splicing machinery offers a novel strategy for promoting longevity and delaying aging.