LncRNAs: the missing link to senescence nuclear architecture

Area of Science:

• Cellular and Molecular Biology
• Aging Research
• Epigenetics

Background:

• Cellular senescence and organismal aging involve significant molecular and morphological alterations.
• While aging-related long noncoding RNAs (lncRNAs) are linked to the senescence-associated secretory phenotype, their role in nuclear architecture changes is under-explored.

Purpose of the Study:

• To review the involvement of lncRNAs in the establishment and maintenance of nuclear structure during aging.
• To elucidate the underappreciated role of RNA double-strand DNA triplexes formed by lncRNAs in regulating nuclear structural changes.
• To discuss future avenues for investigating lncRNA-mediated nuclear morphology alterations.

Main Methods:

• Literature review of lncRNAs involved in nuclear structure.
• Focus on the mechanism of RNA-DNA triplex formation by lncRNAs.
• Discussion of potential future research methodologies including artificial intelligence and genetic perturbations.

Main Results:

• lncRNAs are increasingly recognized for their roles in nuclear structure.
• RNA-DNA triplexes are a key mechanism by which lncRNAs interact with genomic regions to influence nuclear organization.
• Aging processes induce changes in lncRNA expression and function impacting nuclear architecture.

Conclusions:

• lncRNAs are critical players in regulating nuclear structure during senescence and aging.
• Understanding lncRNA-DNA interactions, especially triplex formation, is crucial for deciphering their role in nuclear morphology.
• Future research integrating AI and genetic tools will advance the understanding of lncRNA-driven nuclear changes in aging.