RGD Reference Report - Local administration of a synthetic cell-penetrating peptide antagonizing TrkA function suppresses inflammatory pain in rats. - Rat Genome Database

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Local administration of a synthetic cell-penetrating peptide antagonizing TrkA function suppresses inflammatory pain in rats.

Authors: Ueda, K  Hirose, M  Murata, E  Takatori, M  Ueda, M  Ikeda, H  Shigemi, K 
Citation: Ueda K, etal., J Pharmacol Sci. 2010;112(4):438-43. Epub 2010 Mar 30.
RGD ID: 5684352
Pubmed: PMID:20351485   (View Abstract at PubMed)

Novel agents that inhibit nerve growth factor signaling are required for the treatment of inflammatory pain. The present study investigated the effect of local administration of inhibitory peptide of TrkA (IPTRK3), a synthetic cell-penetrating peptide that antagonizes TrkA function, in complete Freund's adjuvant (CFA)-induced hyperalgesia in rats. Three hours after subcutaneous injection of CFA into the plantar surface of the rat's left hind paw, 10 mM IPTRK3 was injected at the same site. Thermal and mechanical hyperalgesia were tested in the ipsilateral hind paw until 7 days after CFA injection. The ipsilateral dorsal root ganglion (DRG) was dissected out for immunohistochemical analysis of transient receptor potential vanilloid subfamily member 1 (TRPV1) channels and TrkA. Local injection of this peptide significantly suppressed both thermal and mechanical hyperalgesia produced by CFA and also significantly reduced TRPV1 expression at the DRG. These results suggest that local administration of IPTRK3 is likely effective in the treatment of inflammatory pain in rats.



RGD Manual Disease Annotations    Click to see Annotation Detail View

  
Object SymbolSpeciesTermQualifierEvidenceWithNotesSourceOriginal Reference(s)
NTRK1HumanHyperalgesia  ISONtrk1 (Rattus norvegicus) RGD 
Ntrk1RatHyperalgesia  IMP  RGD 
Ntrk1MouseHyperalgesia  ISONtrk1 (Rattus norvegicus) RGD 

Gene Ontology Annotations    Click to see Annotation Detail View

Biological Process

  

Objects Annotated

Genes (Rattus norvegicus)
Ntrk1  (neurotrophic receptor tyrosine kinase 1)

Genes (Mus musculus)
Ntrk1  (neurotrophic tyrosine kinase, receptor, type 1)

Genes (Homo sapiens)
NTRK1  (neurotrophic receptor tyrosine kinase 1)


Additional Information