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PMID:16763782

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Citation

Boer, PA and Gontijo, JA (2006) Nuclear localization of SP, CGRP, and NK1R in a subpopulation of dorsal root ganglia subpopulation cells in rats. Cell. Mol. Neurobiol. 26:191-207

Abstract

Signals generated by renal pelvic afferent nerves in response to stimulation are transmitted from peripheral processes of dorsal root ganglia neurons to their central terminals in the dorsal horn of the spinal cord to cause the release of neuropeptides, including SP and CGRP. All of the cellular activities of SP are considered to be mediated through interaction with NK(1)R located on the cell surface. We have investigated the colocalization and subcellular distribution of NK(1)R, SP, and CGRP in different subpopulations of neurons that innervate renal tissue. Our findings therefore provide the first evidence for the presence of NK(1)R, SP, and CGRP in the nuclei of DGR neural cells. The physiological significance of this localization remains unknown. One possibility is that pelvic sensory neurons may regulate their responses to different stimuli by modulating the ratio of CGRP and SP release and/or nuclear NK(1)R expression.

Links

PubMed Online version:10.1007/s10571-006-9020-5

Keywords

Animals; Calcitonin Gene-Related Peptide/analysis; Cell Nucleus/chemistry; Ganglia, Spinal/chemistry; Ganglia, Spinal/cytology; Immunohistochemistry; Male; Neurons/chemistry; Neurons/ultrastructure; Rats; Rats, Wistar; Receptors, Neurokinin-1/analysis; Substance P/analysis

Significance

Annotations

Gene product Qualifier GO Term Evidence Code with/from Aspect Extension Notes Status

RAT:CALC

part_of

GO:0005634: nucleus

ECO:0000314: direct assay evidence used in manual assertion

C

Seeded From UniProt

complete

RAT:CALCA

part_of

GO:0005634: nucleus

ECO:0000314: direct assay evidence used in manual assertion

C

Seeded From UniProt

complete


See also

References

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