Neural Regeneration Research ›› 2013, Vol. 8 ›› Issue (32): 3013-3019.doi: 10.3969/j.issn.1673-5374.2013.32.004

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Transient receptor potential channel A1 involved in calcitonin gene-related peptide release in neurons

Nobumasa Ushio1, Yi Dai1, 2, 3, Shenglan Wang1, 2, 3, Tetsuo Fukuoka1, Koichi Noguchi1   

  1. 1 Department of Anatomy and Neuroscience, Hyogo College of Medicine, Nishinomiya, Hyogo 663-8501, Japan
    2 Department of Pharmacy, School of Pharmacy, Hyogo University of Health Sciences, Kobe, Hyogo 650-8530, Japan
    3 Traditional Medicine Research Center, Chinese Medicine Confucius Institute at Hyogo College of Medicine, Kobe, Hyogo 650-8530, Japan
  • Received:2013-07-23 Revised:2013-09-12 Online:2013-11-15 Published:2013-11-15
  • Contact: Yi Dai, Ph.D., Associate professor, Department of Pharmacy, School of Pharmacy, Hyogo University of Health Sciences, Kobe, Hyogo 650-8530, Japan, ydai@huhs.ac.jp.
  • About author:This work was supported by the Research Basis Formation Supporting Project for Private University.
  • Supported by:

    This work was supported by the Research Basis Formation Supporting Project for Private University.

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Abstract:

Transient receptor potential channel A1 is one of the important transducers of noxious stimuli in the primary afferents, which may contribute to generation of neurogenic inflammation and hyperalgesia. The present study was designed to investigate if activation of transient receptor potential channel A1 may induce calcitonin gene-related peptide release from the primary afferent neurons. We found that application of allyl isothiocyanate, a transient receptor potential channel A1 activator, caused calcitonin gene-related peptide release from the cultured rat dorsal root ganglion neurons. Knock-down of transient receptor potential channel A1 with an antisense oligodeoxynucleotide prevented calcitonin gene-related peptide release by allyl isothiocyanate application in cultured dorsal root ganglion neurons. Thus, we concluded that transient receptor potential channel A1 activation caused calcitonin gene-related peptide release in sensory neurons.

Key words: neural regeneration, transient receptor potential channel A1, calcitonin gene-related peptide, dorsal root ganglion neurons, pain, hyperalgesia, noxious stimuli, sensory neuron, grants-supported paper, neuroregeneration