Expression and distribution of vanilloid receptor 1 (TRPV1) in the adult rat brain

Attila Tóth, Judit Boczán, Noémi Kedei, Erzsébet Lizanecz, Zsolt Bagi, Z. Papp, I. Édes, L. Csiba, Peter M. Blumberg

Research output: Contribution to journalArticle

313 Citations (Scopus)

Abstract

The vanilloid receptor (TRPV1 or VR1) is a molecular integrator of various painful stimuli, including capsaicin, acid, and high temperature. It can also be activated by endogenous ligands, like the cannabinoid 1 receptor (CB1) agonist anandamide. TRPV1 is well characterized at the terminals of sensory nerves involved in the pain pathway. There is also evidence that TRPV1 is expressed in the brain but little is known about its function. Here, using commercially available specific antibodies to investigate the localization of TRPV1 in the brain of the rat, we report that TRPV1 was expressed in hippocampus, cortex, cerebellum, olfactory bulb, mesencephalon and hindbrain. Immunohistochemical analyses showed high expression in the cell bodies and dendrites of neurons in the hippocampus and in the cortex. To address the question of subcellular localization, immunoelectronmicroscopy was used. TRPV1-like staining was detected in the synapses (mostly, but not exclusively in post-synaptic dendritic spines), on the end feet of astrocytes and in pericytes. In summary, TRPV1 expression shows wide distribution in the brain of the rat, being found in astrocytes and pericytes as well as in neurons. Its localization is consistent with multiple functions within the central nervous system, including the regulation of brain vasculature.

Original languageEnglish
Pages (from-to)162-168
Number of pages7
JournalMolecular Brain Research
Volume135
Issue number1-2
DOIs
Publication statusPublished - Apr 27 2005

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Pericytes
Brain
Astrocytes
Hippocampus
Cannabinoid Receptor Agonists
Neurons
TRPV Cation Channels
Dendritic Spines
Rhombencephalon
Olfactory Bulb
Capsaicin
Dendrites
Mesencephalon
Synapses
Cerebellum
Central Nervous System
Staining and Labeling
Ligands
Pain
Temperature

Keywords

  • Astrocyte
  • Brain
  • Central nervous system
  • Immunohistochemistry
  • Synapses
  • Vanilloid receptor 1 (VR1 or TRPV1)

ASJC Scopus subject areas

  • Molecular Biology
  • Cellular and Molecular Neuroscience

Cite this

Tóth, A., Boczán, J., Kedei, N., Lizanecz, E., Bagi, Z., Papp, Z., ... Blumberg, P. M. (2005). Expression and distribution of vanilloid receptor 1 (TRPV1) in the adult rat brain. Molecular Brain Research, 135(1-2), 162-168. https://doi.org/10.1016/j.molbrainres.2004.12.003

Expression and distribution of vanilloid receptor 1 (TRPV1) in the adult rat brain. / Tóth, Attila; Boczán, Judit; Kedei, Noémi; Lizanecz, Erzsébet; Bagi, Zsolt; Papp, Z.; Édes, I.; Csiba, L.; Blumberg, Peter M.

In: Molecular Brain Research, Vol. 135, No. 1-2, 27.04.2005, p. 162-168.

Research output: Contribution to journalArticle

Tóth, Attila ; Boczán, Judit ; Kedei, Noémi ; Lizanecz, Erzsébet ; Bagi, Zsolt ; Papp, Z. ; Édes, I. ; Csiba, L. ; Blumberg, Peter M. / Expression and distribution of vanilloid receptor 1 (TRPV1) in the adult rat brain. In: Molecular Brain Research. 2005 ; Vol. 135, No. 1-2. pp. 162-168.
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