Neuropeptide Y release in the rat spinal cord measured with Y1 receptor internalization is increased after nerve injury.

Marvizon JC, Chen W, Fu W, Taylor BK (2019) Neuropeptide Y release in the rat spinal cord measured with Y1 receptor internalization is increased after nerve injury. Neuropharmacology 158:107732. doi: 10.1016/j.neuropharm.2019.107732

Summary: NPY is released from dorsal horn interneurons or primary afferent terminals by electrical stimulation and by activation of TRPV1, PKA or NMDA receptors in. Release evoked by noxious and tactile stimuli increases after peripheral nerve injury. Ablation of Y1-expressing dorsal horn neurons with NPY-saporin produced antinociception (Lemons and Wiley) and reduced mechanical and cold hypersensitivity in the spared nerve injury model (Nelson et al.), suggesting that they are pro-nociceptive neurons.

Related Products: NPY-SAP (Cat. #IT-28)

See Also:

• Lemons LL et al. Galanin receptor-expressing dorsal horn neurons: role in nociception. Neuropeptides 45(6):377-383, 2011.
• Nelson TS et al. Facilitation of neuropathic pain by the NPY Y1 receptor-expressing subpopulation of excitatory interneurons in the dorsal horn. Sci Rep 9(1):7248, 2019.