RGD Reference Report - Expression of monocyte chemoattractant protein-1 in rat dorsal root ganglia and spinal cord in experimental models of neuropathic pain. - Rat Genome Database

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Expression of monocyte chemoattractant protein-1 in rat dorsal root ganglia and spinal cord in experimental models of neuropathic pain.

Authors: Jeon, SM  Lee, KM  Cho, HJ 
Citation: Jeon SM, etal., Brain Res. 2009 Jan 28;1251:103-11. Epub 2008 Nov 27.
RGD ID: 2307005
Pubmed: PMID:19059387   (View Abstract at PubMed)
DOI: DOI:10.1016/j.brainres.2008.11.046   (Journal Full-text)

In this study, we evaluated the expression of MCP-1 in the rat dorsal root ganglion (DRG) and spinal cord following axotomy and chronic constriction injury (CCI) of the sciatic nerve and L5 spinal nerve ligation (L5 SNL) using an immunohistochemical approach. MCP-1 expression in the DRG peaked and declined before the full onset of pain hypersensitivity following nerve injury. Spinal expression of MCP-1 peaked when mechanical allodynia was maximal, but then declined rapidly despite the remarkable persistence of mechanical allodynia. The results suggest that MCP-1 may participate in the initiation of neuropathic pain, rather than in its maintenance. Despite increased MCP-1 in small and large DRG neurons, a remarkable increase in MCP-1-IR terminals was observed in the spinal superficial laminae following CCI and L5SNL, but not following axotomy; however, in the deeper laminae, a considerable increase in MCP-1-IR terminals, which may originate from the large and injured L5 DRG neurons, was found after L5 SNL. Our results demonstrate that MCP-1 synthesized in DRG neurons may or may not be transported to the spinal cord depending on the type of peripheral nerve injury. Additionally, increased MCP-1 in both intact L4 and injured L5 DRG neurons may contribute to neuropathic pain hypersensitivity following L5 SNL.



RGD Manual Disease Annotations    Click to see Annotation Detail View

  
Object SymbolSpeciesTermQualifierEvidenceWithNotesSourceOriginal Reference(s)
CCL2Humansciatic neuropathy  ISOCcl2 (Rattus norvegicus)protein:increased expression:spinal cord dorsal horn and axon terminal (rat)RGD 
Ccl2Ratsciatic neuropathy  IEP protein:increased expression:spinal cord dorsal horn and axon terminal (rat)RGD 
Ccl2Mousesciatic neuropathy  ISOCcl2 (Rattus norvegicus)protein:increased expression:spinal cord dorsal horn and axon terminal (rat)RGD 

Gene Ontology Annotations    Click to see Annotation Detail View

Cellular Component

  
Object SymbolSpeciesTermQualifierEvidenceWithNotesSourceOriginal Reference(s)
Ccl2Rataxon terminus  IDA  RGD 

Objects Annotated

Genes (Rattus norvegicus)
Ccl2  (C-C motif chemokine ligand 2)

Genes (Mus musculus)
Ccl2  (C-C motif chemokine ligand 2)

Genes (Homo sapiens)
CCL2  (C-C motif chemokine ligand 2)

Objects referenced in this article
Gene CCL13 C-C motif chemokine ligand 13 Homo sapiens

Additional Information