Post-transcriptional RNA regulons affecting cell cycle and proliferation

Area of Science:

• Molecular Biology
• Cell Biology
• Genetics

Background:

• The cell cycle requires precise regulation of protein synthesis and gene expression for checkpoint control.
• Post-transcriptional control, specifically messenger RNA (mRNA) localization and translation by RNA-binding proteins, is crucial for cellular economy.
• The RNA regulon model describes coordinated mRNA expression influencing cellular processes.

Purpose of the Study:

• To review recent studies on mRNA subset coordination during nuclear export and protein synthesis.
• To discuss the role of mRNA coordination in cell cycle regulation, p53 targets, and DNA damage response.
• To explore the connection between post-transcriptional events and cell cycle control.

Main Methods:

• Literature review of studies across various model organisms (yeast, nematode, insect, mammalian).
• Analysis of evidence for mRNA coordination in nuclear export and translation.
• Examination of genetic data linking RNA regulon dysregulation to disease.

Main Results:

• Recent evidence highlights the role of RNA-binding proteins in coordinating mRNA subsets for cell cycle proteins.
• Coordination of mRNA subsets is observed during nuclear export and coupled to protein synthesis.
• Evidence suggests mRNA coordination impacts p53 targets and DNA damage response pathways.

Conclusions:

• Post-transcriptional coordination of mRNA subsets is integral to cell cycle progression.
• Dysregulation of RNA regulons may contribute to pathogenic growth states, including carcinogenesis.
• Understanding these mechanisms offers insights into cell cycle control and disease development.