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Advillin is an actin-binding protein involved in regulating the organization of actin filaments and the dynamics of axonal growth cones. In mice, advillin is exclusively expressed in somatosensory neurons, ubiquitously expressed in all neuron subtypes during neonatal ages and particularly enriched in isolectin B4-positive (IB4+) non-peptidergic neurons in adulthood. We previously showed that advillin plays a key role in axon regeneration of somatosensory neurons during peripheral neuropathy.

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Contribution of T-type calcium channel isoforms to cold and mechanical sensitivity in naïve and oxaliplatin-treated mice of both sexes.

Br J Pharmacol

December 2024

Department of Clinical Neurosciences, Cumming School of Medicine, Hotchkiss Brain Institute, Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Canada.

Article Synopsis
  • Oxaliplatin, a chemotherapy drug, can cause a painful condition called oxaliplatin-induced peripheral neuropathy (OIPN), and this study examines the role of T-type calcium channels in this process.
  • The research involved chronic treatment of mice with oxaliplatin to assess their pain responses and changes in calcium channel expression, while also testing the effects of specific channel blockers on cold sensitivity.
  • Results indicated that T-type channels contribute to both mechanical and cold hypersensitivity differently in male and female mice, suggesting that targeting these channels might help manage OIPN pain without causing additional cold sensitivity issues.
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Role of TRPA1 in Painful Cold Hypersensitivity.

Adv Exp Med Biol

September 2024

Department of Molecular Pharmacology, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, Japan.

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  • * Research indicates that oxaliplatin, a chemotherapy drug, increases TRPA1's sensitivity to both chemical triggers and reactive oxygen species (ROS), which play a role in pain generation.
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Oxaliplatin (OXA) as the platinum-based agent induces the cumulative neuropathy including functional impairment and neuropathic pain. OXA treatment triggered oxidative stress and inflammatory reaction in the spinal cord. Puerarin as a natural product has the neuroprotective effect on neuropathic pain.

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