MicroRNAs: pioneering regulators in Alzheimer's disease pathogenesis, diagnosis, and therapy

Area of Science:

• Neuroscience
• Genetics
• Molecular Biology

Background:

• Alzheimer's disease (AD) is a leading cause of cognitive decline in the elderly.
• AD pathogenesis involves complex molecular pathways, including protein aggregation and neuroinflammation.
• MicroRNAs (MiRNAs) are emerging as critical regulators in neurodegenerative diseases.

Purpose of the Study:

• To review the specific roles of microRNAs (MiRNAs) in Alzheimer's disease (AD) pathogenesis.
• To explore how MiRNAs influence key pathological hallmarks of AD.
• To highlight the potential of MiRNAs as diagnostic markers and therapeutic targets for AD.

Main Methods:

• Literature review of recent studies on MiRNAs and AD.
• Analysis of MiRNA involvement in β-amyloid (Aβ) and tau pathology.
• Examination of MiRNA impact on neuroinflammation, oxidative stress, and APOE4 expression.

Main Results:

• Specific MiRNAs are implicated in regulating Aβ peptide accumulation and tau protein aggregation.
• MiRNAs influence mitochondrial function and neuroinflammatory responses in AD models.
• MiRNA dysregulation is linked to the expression of the APOE4 gene, a risk factor for AD.

Conclusions:

• MicroRNAs are integral to the molecular mechanisms driving Alzheimer's disease.
• Targeting specific MiRNAs presents a promising strategy for AD diagnosis and treatment.
• Further research into MiRNA functions can elucidate AD pathology and guide therapeutic development.