Calcitonin gene-related peptide-receptor component protein expression in the uterine cervix, lumbosacral spinal cord, and dorsal root ganglia

The neuropeptide calcitonin gene-related peptide (CGRP) may play a role in neurogenic inflammation, tissue remodeling of the uterine cervix, promoting vasodilation, parturition, and processing of sensory information in the spinal cord. CGRP-immunoreactive nerves of the cervix and spinal cord have be...

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Veröffentlicht in:Peptides (New York, N.Y. : 1980) N.Y. : 1980), 2002-03, Vol.23 (3), p.507-514
Hauptverfasser: Pokabla, M J, Dickerson, I M, Papka, R E
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container_title Peptides (New York, N.Y. : 1980)
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creator Pokabla, M J
Dickerson, I M
Papka, R E
description The neuropeptide calcitonin gene-related peptide (CGRP) may play a role in neurogenic inflammation, tissue remodeling of the uterine cervix, promoting vasodilation, parturition, and processing of sensory information in the spinal cord. CGRP-immunoreactive nerves of the cervix and spinal cord have been studied but cellular identification of the CGRP receptor has received little attention. CGRP-receptor component protein (CGRP-RCP) is a small protein associated with the CGRP receptor; thus, immunostaining for the CGRP-RCP can be used to identify sites of the CGRP receptor. We determined sites of CGRP-RCP immunoreactivity relative to the presence of CGRP-ir nerve fibers in the female rat uterine cervix, spinal cord, and dorsal root ganglia. CGRP-RCP immunoreactivity was expressed in the dorsal horn of the spinal cord, venules of the uterine cervix, and perikarya of sensory neurons in dorsal root ganglia. CGRP-immunoreactive fibers were adjacent to CGRP-RCP-immunoreactive vessels in the cervix and among CGRP-RCP-immunoreactive structures in the dorsal horn of the spinal cord. This suggests CGRP-RCP is associated with structures innervated by CGRP nerves and these interactions may be changed in tissues in response to an appropriate stimulus.
doi_str_mv 10.1016/S0196-9781(01)00638-6
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subjects Animals
Cervix Uteri - metabolism
Female
Ganglia, Spinal - metabolism
Lumbosacral Region
Rats
Rats, Sprague-Dawley
Receptors, Calcitonin Gene-Related Peptide - biosynthesis
Receptors, Calcitonin Gene-Related Peptide - immunology
Receptors, Calcitonin Gene-Related Peptide - metabolism
Spinal Cord - metabolism
Uterus - metabolism
title Calcitonin gene-related peptide-receptor component protein expression in the uterine cervix, lumbosacral spinal cord, and dorsal root ganglia
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