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Regulation of microRNA biogenesis and function

T Treiber1, N Treiber, G Meister

  • 1Gunter Meister, Biochemistry Center Regensburg (BZR), Laboratory for RNA Biology, University of Regensburg, Universitätsstrasse 31, 93053 Regensburg, Germany.

Thrombosis and Haemostasis
|February 10, 2012
PubMed

Insights

MicroRNAs (miRNAs) regulate cellular pathways by binding to messenger RNAs (mRNAs). This review details how miRNA activity and abundance are controlled at multiple levels in mammalian cells.

Area of Science:

  • Molecular Biology
  • Genetics
  • Cell Biology

Background:

  • MicroRNAs (miRNAs) are crucial regulators of cellular pathways.
  • Their biosynthesis and function require strict regulation.
  • Mature miRNAs function within protein complexes, primarily with Argonaute (Ago) proteins.

Purpose of the Study:

  • To review recent advances in understanding miRNA activity regulation in mammalian cells.
  • To discuss the multifaceted levels at which miRNA activity is controlled.

Main Methods:

  • Literature review of recent research on miRNA regulation.
  • Synthesis of findings on miRNA transcription, processing, target binding, and stability.

Main Results:

  • MiRNA activity is regulated from transcription and processing to target recognition and stability.
  • Complexes involving mature miRNAs and Ago proteins mediate gene expression inhibition.
  • Regulation occurs at multiple molecular levels, impacting miRNA abundance and function.

Conclusions:

  • MiRNA regulation is a complex, multi-layered process essential for cellular homeostasis.
  • Understanding these regulatory mechanisms is key to comprehending gene expression control.
  • This review consolidates current knowledge on mammalian miRNA regulation.

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