A role for Langerhans cells (LC) in the induction of immune responses in the skin has yet to be conclusively demonstrated. We used skin immunization with OVA protein to induce immune responses against OVA-expressing melanoma cells. Mice injected with OVA-specific CD8(+) T cells and immunized with OVA onto barrier-disrupted skin had increased numbers of CD8(+) T cells in the blood that produced ...

objective(s): human and animal studies have shown a close relationship between obesity and asthma severity. here, we examined the effects of diet-induced obesity (dio) on the expression levels of il-1β, irak-1 and traf-6 mrna in male wistar rats tracheal after sensitization with ovalbumin (ova). materials and methods:twenty male wistar rats divided to four groups, included, control group with n...

BACKGROUND There have been few reports on the role of Fc receptors (FcRs) and immunoglobulin G (IgG) in asthma. The purpose of this study is to clarify the role of inhibitory FcRs and antigen presenting cells (APCs) in pathogenesis of asthma and to evaluate antigen-transporting and presenting capacity by APCs in the tracheobronchial mucosa. METHODS In FcγRIIB deficient (KO) and C57BL/6 (WT) m...

To investigate the role of Aire in thymic selection, we examined the cellular requirements for generation of ovalbumin (OVA)-specific CD4 and CD8 T cells in mice expressing OVA under the control of the rat insulin promoter. Aire deficiency reduced the number of mature single-positive OVA-specific CD4(+) or CD8(+) T cells in the thymus, independent of OVA expression. Importantly, it also contrib...

Airway dysfunction in asthma is characterized by hyperresponsiveness, heterogeneously narrowed airways, and closure of airways. To test the hypothesis that airway constriction in ovalbumin (OVA)-sensitized OVA-intranasally challenged (OVA/OVA) mice produces mechanical responses that are similar to those reported in asthmatic subjects, respiratory system resistance (Rrs) and elastance (Edyn,rs) ...

SEREX has proven to be a powerful method that takes advantage of the presence of spontaneous humoral immune response in some cancer patients. In this study, immunoscreening of normal testis and two ovarian cancer cell line cDNA expression libraries with sera from ovarian cancer patients led to the isolation of 75 independent antigens, designated KP-OVA-1 through KP-OVA-75. Of these, RT-PCR show...

Background: Asthma causes changes in the airway structure called remodeling due to chronic inflammatory reactions. Transforming Growth Factor-? (TGF-?) is one of mediators which has a significant role and process. One medicinal plants known have anti-inflammatory potential Kaempferia galanga L. This study aims analyze effect ethyl p-methoxycinnamate isolated from rhizome on expression TGF-? fib...