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Related Experiment Videos

DREAMing about arthritic pain.

H-Y M Cheng1, J M Penninger

  • 1IMBA, Institute for Molecular Biotechnology of the Austrian Academy of Sciences, Dr Bohr Gasse 3-5, A-1030 Vienna, Austria.

Annals of the Rheumatic Diseases
|October 14, 2004
PubMed
Summary

Mice lacking the downstream regulatory element antagonistic modulator (DREAM) protein showed reduced sensitivity to both acute and chronic pain. This suggests the DREAM pathway is a potential therapeutic target for managing chronic pain conditions like arthritis.

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Area of Science:

  • Neuroscience
  • Pain Research
  • Molecular Biology

Background:

  • Chronic pain is a debilitating condition with limited treatment options.
  • Understanding pain mechanisms is crucial for developing effective therapies.
  • The downstream regulatory element antagonistic modulator (DREAM) protein's role in pain was previously unknown.

Purpose of the Study:

  • To investigate the role of DREAM in modulating pain sensitivity.
  • To explore the therapeutic potential of targeting the DREAM pathway for chronic pain.

Main Methods:

  • Utilized genetically modified mice lacking the DREAM protein (dream-/-).
  • Assessed pain behavior in various models, including acute, chronic neuropathic, and inflammatory pain.
  • Conducted pharmacological and biochemical analyses to elucidate underlying mechanisms.

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Main Results:

  • Dream-/- mice exhibited significantly reduced pain behaviors across multiple models.
  • Loss of DREAM led to increased activation of the endogenous kappa-opioid system.
  • Attenuation of pain was observed in both neuropathic and inflammatory pain conditions.

Conclusions:

  • DREAM plays a pivotal role in modulating pain sensitivity.
  • The DREAM pathway, involving kappa-opioid system activation, represents a novel therapeutic target.
  • Targeting DREAM offers a potential new strategy for treating chronic pain, including arthritis.