Document Detail

Sublingual immunotherapy reduces soluble HLA-G and HLA-A,-B,-C serum levels in patients with allergic rhinitis.
MedLine Citation:
PMID:  19100344     Owner:  NLM     Status:  MEDLINE    
Allergic rhinitis (AR) is characterized by Th2 polarized immune response. Soluble HLA (sHLA) molecules play an immunomodulatory activity. Specific immunotherapy is the only causal treatment for AR. So far no study investigated the effect of sublingual immunotherapy (SLIT) on sHLA molecules. The aim of the study was to evaluate sHLA-G and sHLA-A,-B,-C serum levels in AR patients with pollen allergy before and after a pre-seasonal course of SLIT. Forty AR patients with pollen allergy were enrolled and they assumed a pre-seasonal SLIT course for 3 months. Serum sHLA-G and sHLA-A,-B,-C and IFN-gamma and IL-4 levels were determined by ELISA method at baseline and 3 months after the end of the SLIT course. Symptoms severity was assessed by a Visual Analogue Scale. Both sHLA-G and sHLA-A,-B,-C levels significantly diminished (p<0.0001 for both) after SLIT. Moreover, there was a highly significant relationship between the serum levels of these two soluble molecules (r=0.84). Significant relationship between symptoms evaluated by VAS and change of sHLA molecules was also evidenced (r=0.60 and 0.63). Serum cytokines were not affected by SLIT. Therefore, this preliminary study provides the first evidence that both sHLA-G and sHLA-A,-B,-C levels are significantly reduced by SLIT in AR patients with pollen allergy. Therefore, the clinical implication of this study is that these soluble molecules might be interpreted as biomarker of response to SLIT.
Giorgio Ciprandi; Paola Contini; Angela Pistorio; Giuseppe Murdaca; Francesco Puppo
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Publication Detail:
Type:  Controlled Clinical Trial; Journal Article     Date:  2008-12-17
Journal Detail:
Title:  International immunopharmacology     Volume:  9     ISSN:  1878-1705     ISO Abbreviation:  Int. Immunopharmacol.     Publication Date:  2009 Feb 
Date Detail:
Created Date:  2009-01-26     Completed Date:  2009-04-30     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100965259     Medline TA:  Int Immunopharmacol     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  253-7     Citation Subset:  IM    
DIMI, University of Genoa, Genoa, Italy.
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MeSH Terms
Administration, Sublingual
Allergens / administration & dosage*,  immunology
Desensitization, Immunologic / methods*
HLA Antigens / blood*
HLA-A Antigens / blood
HLA-B Antigens / blood
HLA-C Antigens / blood
Histocompatibility Antigens Class I / blood
Middle Aged
Rhinitis, Allergic, Seasonal / immunology,  therapy*
Reg. No./Substance:
0/Allergens; 0/HLA Antigens; 0/HLA-A Antigens; 0/HLA-B Antigens; 0/HLA-C Antigens; 0/HLA-G antigen; 0/Histocompatibility Antigens Class I

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