RGD Reference Report - Knockdown of neurokinin-1 receptor expression by small interfering RNA prevents the development of allergic rhinitis in rats. - Rat Genome Database

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Knockdown of neurokinin-1 receptor expression by small interfering RNA prevents the development of allergic rhinitis in rats.

Authors: Wang, H  Zhang, R  Wu, J  Hu, H 
Citation: Wang H, etal., Inflamm Res. 2013 Oct;62(10):903-10. doi: 10.1007/s00011-013-0649-5. Epub 2013 Aug 11.
RGD ID: 11354976
Pubmed: PMID:23934070   (View Abstract at PubMed)
PMCID: PMC3771433   (View Article at PubMed Central)
DOI: DOI:10.1007/s00011-013-0649-5   (Journal Full-text)

OBJECTIVE AND DESIGN: This study is aimed at exploring the role of neurokinin-1 receptor (NK-1R) in the development of allergic rhinitis (AR) in rats. METHODS: Sprague-Dawley rats were sensitized and challenged with ovalbumin to induce AR. The rats were treated intranasally with saline, control, or NK-1R-specific small interfering RNA (siRNA) before and during the challenge period. The numbers of sneezes and nose rubs and amount of nasal secretion in individual rats were measured. The levels of NK-1R expression in the nasal mucosal tissues after the last challenge were determined. The numbers of eosinophils in the collected nasal lavage fluid and the levels of serum interleukin (IL)-5 in individual rats were determined. RESULTS: The levels of NK-1R expression in the nasal mucosal tissues of the AR rats that had been treated with saline or control siRNA were significantly higher than those in the healthy controls and the rats treated with NK-1R-specific siRNA, demonstrating NK-1R silencing. Furthermore, knockdown of NK-1R expression significantly reduced the amounts of sneezing, nose rubbing, and nasal secretions in AR rats. Knockdown of NK-1R expression also significantly eliminated eosinophil infiltration in the nasal tissues and reduced the levels of serum IL-5 in rats. CONCLUSIONS: Knockdown of NK-1R expression decreased allergic inflammation in nasal mucosal tissues and alleviated the allergic rhinitis symptoms, suggesting that NK-1R may be a critical mediator of the development of AR.

RGD Manual Disease Annotations    Click to see Annotation Detail View
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
allergic rhinitis treatmentISOIl5 (Rattus norvegicus)11354976; 11354976 RGD 
allergic rhinitis treatmentIEP 11354976 RGD 

Objects Annotated

Genes (Rattus norvegicus)
Il5  (interleukin 5)

Genes (Mus musculus)
Il5  (interleukin 5)

Genes (Homo sapiens)
IL5  (interleukin 5)


Additional Information