Expression and localization of endothelin receptors: Implications for the involvement of peripheral glia in nociception

J. D. Pomonis, S. D. Rogers, C. M. Peters, J. R. Ghilardi, Patrick W Mantyh

Research output: Contribution to journalArticle

167 Citations (Scopus)

Abstract

The endothelins (ETs) are peptides that have a diverse array of functions mediated by two receptor subtypes, the endothelin A receptor (ETAR) and the endothelin B receptor (ETBR). Pharmacological studies have suggested that in peripheral tissues, ETAR expression may play a role in signaling acute or neuropathic pain, whereas ETBR expression may be involved in the transmission of chronic inflammatory pain. To begin to define the mechanisms by which ET can drive nociceptive signaling, autoradiography and immunohistochemistry were used to examine the distribution of ETAR and ETBR in dorsal root ganglia (DRG) and peripheral nerve of the rat, rabbit, and monkey. In DRG and peripheral nerve, ETAR-immunoreactivity was present in a subset of small-sized peptidergic and nonpeptidergic sensory neurons and their axons and to a lesser extent in a subset of medium-sized sensory neurons. However, ETBR-immunoreactivity was not seen in DRG neurons or axons but rather in DRG satellite cells and nonmyelinating ensheathing Schwann cells. Thus, when ETs are released in peripheral tissues, they could act directly on ETAR-expressing sensory neurons and on ETBR-expressing DRG satellite cells or nonmyelinating Schwann cells. These data indicate that ETs can have direct, nociceptive effects on the peripheral sensory nervous system and that peripheral glia may be directly involved in signaling nociceptive events in peripheral tissues.

Original languageEnglish (US)
Pages (from-to)999-1006
Number of pages8
JournalJournal of Neuroscience
Volume21
Issue number3
StatePublished - 2001
Externally publishedYes

Fingerprint

Endothelin B Receptors
Endothelin A Receptors
Endothelin Receptors
Nociception
Spinal Ganglia
Neuroglia
Endothelins
Sensory Receptor Cells
Schwann Cells
Peripheral Nerves
Axons
Peripheral Nervous System
Acute Pain
Neuralgia
Autoradiography
Chronic Pain
Haplorhini
Immunohistochemistry
Pharmacology
Rabbits

Keywords

  • Cancer pain
  • Endothelin
  • Ensheathing Schwann cells
  • Inflammatory pain
  • Satellite cells
  • Sensory neurons

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Expression and localization of endothelin receptors : Implications for the involvement of peripheral glia in nociception. / Pomonis, J. D.; Rogers, S. D.; Peters, C. M.; Ghilardi, J. R.; Mantyh, Patrick W.

In: Journal of Neuroscience, Vol. 21, No. 3, 2001, p. 999-1006.

Research output: Contribution to journalArticle

Pomonis, J. D. ; Rogers, S. D. ; Peters, C. M. ; Ghilardi, J. R. ; Mantyh, Patrick W. / Expression and localization of endothelin receptors : Implications for the involvement of peripheral glia in nociception. In: Journal of Neuroscience. 2001 ; Vol. 21, No. 3. pp. 999-1006.
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