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miRNAs at the interface of cellular stress and disease

Anna Emde1, Eran Hornstein2

  • 1Department of Molecular Genetics, Weizmann Institute of Science, Rehovot, Israel.

The EMBO Journal
|May 29, 2014
PubMed

Insights

Cellular stress impacts microRNA (miRNA) processing and function. Dysregulated miRNA activity exacerbates stress responses, contributing to age-related diseases like neurodegeneration.

Area of Science:

  • Molecular Biology
  • Cellular Biology
  • Genetics

Background:

  • MicroRNAs (miRNAs) are small, non-coding RNAs regulating gene expression by targeting messenger RNAs (mRNAs).
  • Cellular stress pathways are critical for maintaining homeostasis under adverse conditions.
  • The interplay between miRNA machinery and cellular stress responses is an emerging area of research.

Purpose of the Study:

  • To explore the hypothesis linking microRNA machinery with cellular stress pathways.
  • To investigate how stress signaling affects miRNA bioprocessing and regulation.
  • To understand the role of miRNA dysregulation in age-related diseases.

Main Methods:

  • This study is a review of existing literature.
  • It synthesizes findings on miRNA biogenesis and stress response pathways.
  • It analyzes the consequences of miRNA dysregulation under stress.

Main Results:

  • Stress signaling pathways can alter the function of core miRNA bioprocessing components.
  • This alteration can lead to decompensated gene regulation.
  • Dysregulation of miRNA activity increases cellular susceptibility to stress.

Conclusions:

  • The microRNA machinery is intimately connected with cellular stress response systems.
  • Impaired miRNA function due to stress contributes to cellular dysfunction.
  • Aberrant miRNA activity represents a novel pathway implicated in age-related insults and neurodegeneration.
Keywords:
cellular stressdicerdiseasemicrornasstress granules

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