TY - JOUR
T1 - Induction of interleukin 10 by sublingual immunotherapy for house dust mites
T2 - A preliminary report
AU - Ciprandi, Giorgio
AU - Fenoglio, Daniela
AU - Cirillo, Ignazio
AU - Vizzaccaro, Andrea
AU - Ferrera, Alessandra
AU - Tosca, Maria Angela
AU - Puppo, Francesco
PY - 2005/7
Y1 - 2005/7
N2 - Background: Subcutaneous specific immunotherapy has been demonstrated to be capable of inducing T-cell regulatory response. Interleukin 10 (IL-10) plays a crucial role in inducing allergen-specific tolerance; however, no previous studies have examined IL-10 production after sublingual immunotherapy (SLIT). Objective: To evaluate T-cell proliferation and IL-10 production in patients successfully treated with SLIT for house dust mites (HDMs). Methods: Peripheral blood mononuclear cells were isolated from patients after at least 3 years of successful HDM SLIT and from matched untreated allergic patients and healthy control subjects. After 3 and 6 days of in vitro stimulation with phytohemagglutinin (PHA), Candida albicans, and Dermatophagoides farinae, proliferation and production of IL-10 were measured. Results: Patients treated with SLIT showed a significant reduction of proliferation induced by C albicans compared with untreated atopic patients (P <.001), but a significant reduction was also demonstrated in healthy controls compared with untreated atopic patients (P <.001). Patients treated with SLIT also showed a significant increase of IL-10 production after Candida and PHA stimuli compared with patients with untreated rhinitis (P <.001 for both). Patients with untreated rhinitis did not produce IL-10. Conclusion: This preliminary study confirms reduced T-cell proliferation and preliminarily provides the first evidence, to our knowledge, of peripheral IL-10 production in allergic patients successfully treated with HDM SLIT.
AB - Background: Subcutaneous specific immunotherapy has been demonstrated to be capable of inducing T-cell regulatory response. Interleukin 10 (IL-10) plays a crucial role in inducing allergen-specific tolerance; however, no previous studies have examined IL-10 production after sublingual immunotherapy (SLIT). Objective: To evaluate T-cell proliferation and IL-10 production in patients successfully treated with SLIT for house dust mites (HDMs). Methods: Peripheral blood mononuclear cells were isolated from patients after at least 3 years of successful HDM SLIT and from matched untreated allergic patients and healthy control subjects. After 3 and 6 days of in vitro stimulation with phytohemagglutinin (PHA), Candida albicans, and Dermatophagoides farinae, proliferation and production of IL-10 were measured. Results: Patients treated with SLIT showed a significant reduction of proliferation induced by C albicans compared with untreated atopic patients (P <.001), but a significant reduction was also demonstrated in healthy controls compared with untreated atopic patients (P <.001). Patients treated with SLIT also showed a significant increase of IL-10 production after Candida and PHA stimuli compared with patients with untreated rhinitis (P <.001 for both). Patients with untreated rhinitis did not produce IL-10. Conclusion: This preliminary study confirms reduced T-cell proliferation and preliminarily provides the first evidence, to our knowledge, of peripheral IL-10 production in allergic patients successfully treated with HDM SLIT.
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M3 - Article
C2 - 16095140
AN - SCOPUS:22544467453
VL - 95
SP - 38
EP - 44
JO - Annals of Allergy, Asthma and Immunology
JF - Annals of Allergy, Asthma and Immunology
SN - 1081-1206
IS - 1
ER -