miRNAs in development and pathogenesis of the nervous system

Jakub S Nowak1, Gracjan Michlewski

  • 1Wellcome Trust Centre for Cell Biology, University of Edinburgh, Edinburgh EH9 3JR, UK.

Insights

MicroRNAs (miRNAs) are crucial for nervous system development and function. Dysregulation of these molecules is linked to neurodevelopmental disorders, highlighting their importance in brain health.

Area of Science:

  • Neuroscience
  • Molecular Biology
  • Genetics

Background:

  • The human nervous system extensively utilizes microRNAs (miRNAs), with ~70% of all known miRNAs expressed.
  • Specific miRNAs, both widespread and brain-exclusive, are vital for neural development and function.

Purpose of the Study:

  • To review the current understanding of microRNA roles in nervous system development.
  • To explore the involvement of microRNAs in the pathogenesis of neurological disorders.

Main Methods:

  • Literature review of scientific articles on miRNAs and the nervous system.
  • Analysis of studies investigating miRNA expression and function in neural development and disease.

Main Results:

  • MicroRNAs play a significant role in shaping the nervous system's development and function.
  • Aberrant expression of certain miRNAs is implicated in the etiology of neurodevelopmental disorders.

Conclusions:

  • MicroRNAs are key regulators in the nervous system.
  • Understanding miRNA involvement is critical for addressing neurodevelopmental disorders.

Related Concept Videos

MicroRNAs01:22

MicroRNAs

MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...
MicroRNAs01:22

MicroRNAs

MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA ends...
MicroRNAs01:22

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