RGD Reference Report - Treatment with anti-CC chemokine receptor 3 monoclonal antibody or dexamethasone inhibits the migration and differentiation of bone marrow CD34 progenitor cells in an allergic mouse model. - Rat Genome Database

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Treatment with anti-CC chemokine receptor 3 monoclonal antibody or dexamethasone inhibits the migration and differentiation of bone marrow CD34 progenitor cells in an allergic mouse model.

Authors: Ben, S  Li, X  Xu, F  Xu, W  Li, W  Wu, Z  Huang, H  Shi, H  Shen, H 
Citation: Ben S, etal., Allergy. 2008 Sep;63(9):1164-76.
RGD ID: 4145633
Pubmed: PMID:18699933   (View Abstract at PubMed)
DOI: DOI:10.1111/j.1398-9995.2008.01747.x   (Journal Full-text)

BACKGROUND: The migration and in situ differentiation of CD34(+) progenitors contribute to inflammatory eosinophilia in asthma and corticosteroids have been widely used in asthma. However, little is know about whether and how corticosteroids modulate the migration and differentiation of CD34(+) progenitors. This study was aimed to investigate the impact of anti-CC chemokine receptor 3 (CCR3) or dexamethasone on inflammatory eosinophilia in asthma and possible mechanism(s) underlying the action of dexamethasone or anti-CCR3 on migration and differentiation of CD34(+) progenitors in asthmatic context. METHODS: Using an asthmatic mouse model, airway inflammation of anti-CCR3- or dexamethasone-treated mice and that of controls were characterized. And the migration and differentiation of CD34(+) progenitor cells were analyzed in vivo, ex vivo or in vitro. RESULTS: Treatment with anti-CCR3 or dexamethasone significantly inhibited allergen-induced eosinophilia and CD34(+) progenitor cell infiltration in the lung, which was accompanied by lower levels of airway hyper-responsiveness and mucus production. Moreover, anti-CCR3 inhibited the eotaxin-mediated migration and IL-5/eotaxin-induced differentiation of CD34(+) progenitors in vitro. Dexamethasone was also shown to mitigate eotaxin-mediated migration and IL-5 or eotaxin-promoted differentiation of CD34(+) progenitor cells ex vivo, which were associated with the down-regulation of CCR3 expression on bone marrow progenitor cells. CONCLUSIONS: Treatment with anti-CCR3 or dexamethasone can inhibit the migration and differentiation of CD34(+) progenitor cells by regulating the eotaxin/CCR3 axis in asthmatic mice. Our findings provide new insights into understanding the mechanism(s) underlying the action of dexamethasone and CCR3-mediated signaling in allergic inflammation and aid in the design of new immunotherapy for intervention of human asthma.

RGD Manual Disease Annotations    Click to see Annotation Detail View
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
asthma  ISOCcr3 (Mus musculus)4145633; 4145633 RGD 
asthma  IMP 4145633 RGD 

Objects Annotated

Genes (Rattus norvegicus)
Ccr3  (C-C motif chemokine receptor 3)

Genes (Mus musculus)
Ccr3  (C-C motif chemokine receptor 3)

Genes (Homo sapiens)
CCR3  (C-C motif chemokine receptor 3)


Additional Information