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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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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 and Pain.

Atsushi Sakai1, Hidenori Suzuki2

  • 1Department of Pharmacology, Graduate School of Medicine, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8602, Japan. sa19@nms.ac.jp.

Advances in Experimental Medicine and Biology
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PubMed
Summary
This summary is machine-generated.

MicroRNAs play a key role in chronic pain conditions like neuropathic pain and arthritis. Understanding microRNA alterations offers new therapeutic targets for pain management beyond conventional drugs.

Keywords:
ArthritisCancer painInflammatory painNeuropathic painSomatosensory pathways

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Area of Science:

  • Neuroscience
  • Molecular Biology
  • Genetics

Background:

  • Chronic pain, including neuropathic pain and arthritis, is a significant clinical challenge.
  • Existing analgesics (NSAIDs, opioids) have limitations in efficacy and safety for long-term use.
  • MicroRNAs (miRNAs) are increasingly recognized for their involvement in pain pathways.

Purpose of the Study:

  • To summarize the current understanding of microRNA roles in various chronic pain conditions.
  • To explore the therapeutic potential of targeting microRNAs for pain management.
  • To highlight how miRNA expression varies with pain etiology.

Main Methods:

  • Review of scientific literature on microRNAs and pain.
  • Analysis of miRNA expression patterns in different chronic pain models.
  • Correlation of miRNA alterations with specific pain pathologies.

Main Results:

  • MicroRNA expression is altered at pain origins and along somatosensory pathways.
  • Differential miRNA expression is observed depending on the cause of chronic pain.
  • MicroRNAs represent promising targets for novel pain therapies.

Conclusions:

  • MicroRNAs are critically involved in the development and maintenance of chronic pain.
  • Targeting specific microRNAs could offer new avenues for treating intractable pain.
  • Further research into miRNA-based therapeutics is warranted for effective pain management.