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MicroRNAs01:22

MicroRNAs

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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...
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MicroRNAs01:22

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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...
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MicroRNA as Potential Biomarkers and Their Pathogenesis in Multiple System Atrophy.

Ming-Che Kuo1,2, Shao-Ying Cheng3, Meng-Ling Chen4

  • 1Department of Medicine, National Taiwan University Cancer Center, Taipei 106037, Taiwan.

International Journal of Molecular Sciences
|February 27, 2026
PubMed
Summary
This summary is machine-generated.

MicroRNAs (miRNAs) play a key role in Multiple System Atrophy (MSA) pathogenesis by mediating gene-environment interactions. Understanding these small non-coding RNAs offers potential for new MSA biomarkers and therapies.

Keywords:
biofluidbiomarkerdifferential diagnosismicroRNAmultiple system atrophypathoetiology

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Area of Science:

  • Neuroscience
  • Genetics
  • Molecular Biology

Background:

  • Multiple System Atrophy (MSA) is a rare, rapidly progressive neurodegenerative disease.
  • Key features include autonomic dysfunction, Parkinsonism, and cerebellar ataxia.
  • The exact causes, biomarkers, and treatments for MSA are still unknown.

Purpose of the Study:

  • To review the current evidence on microRNAs (miRNAs) in MSA.
  • To explore how miRNAs contribute to MSA pathogenesis through gene-environment interactions.
  • To discuss the potential of miRNAs as biomarkers and therapeutic targets for MSA.

Main Methods:

  • Literature review synthesizing current research on miRNAs and MSA.
  • Analysis of dysregulated miRNA profiles in MSA patients.
  • Examination of miRNA impact on α-synuclein aggregation, neuroinflammation, and oligodendrocyte function.

Main Results:

  • Dysregulated miRNA profiles are observed in MSA.
  • miRNAs influence α-synuclein aggregation, neuroinflammation, and demyelination.
  • miRNAs are implicated in oligodendrocyte dysfunction.

Conclusions:

  • miRNAs are crucial in mediating gene-environment interactions in MSA.
  • Understanding miRNA roles may reveal insights into MSA pathophysiology.
  • miRNAs present potential as diagnostic biomarkers and therapeutic targets for MSA.