Translation Regulation by eIF2α Phosphorylation and mTORC1 Signaling Pathways in Non-Communicable Diseases (NCDs)

Area of Science:

• Biochemistry
• Molecular Biology
• Pathophysiology

Background:

• Non-communicable diseases (NCDs) stem from genetic, behavioral, and metabolic factors, often involving shared signaling pathways.
• While transcriptional control is studied, mRNA translation regulation in NCDs remains less explored.
• Dysregulation of protein synthesis machinery is increasingly recognized in NCD pathology.

Purpose of the Study:

• To review the role of translational regulation in common NCDs.
• To highlight the significance of the integrated stress response (ISR) and mTORC1 pathways.
• To connect mRNA translation control to NCD pathogenesis.

Main Methods:

• Literature review focusing on ISR and mTORC1 pathways.
• Analysis of how these pathways regulate mRNA translation.
• Examination of their involvement in specific NCDs like Alzheimer's, Parkinson's, stroke, diabetes, liver cirrhosis, COPD, and cardiac diseases.

Main Results:

• ISR pathway regulates eukaryotic initiation factor 2 (eIF2) activity.
• mTORC1 pathway controls cap-mediated mRNA translation.
• Both pathways link cellular translation to physiological stimuli and are implicated in NCDs.

Conclusions:

• Alterations in mRNA translation, particularly via ISR and mTORC1, are critical in NCD pathogenesis.
• Understanding these translational control mechanisms offers insights into disease development.
• Targeting translational regulation may provide novel therapeutic strategies for NCDs.