BACKGROUND Our aim was to identify the mechanisms of immune and cytokine regulation in different clinical forms of Ixodes tick-borne borreliosis. METHODS The clinical observations performed on 581 patients with erythemic (113 patients), non-eritemic (242 patients) forms of Ixodes tick- borne borreliosis and Borrelia co-infection tick-borne encephalitis (226 patients) in the manifestation of t...

Gamma interferon induced surface expression of interleukin 2 (IL-2) receptors on normal human monocytes and the monocytoid cell lines U937 and HL60. These receptors were detected by anti-IL-2 receptor monoclonal antibodies, and U937 IL-2 receptors were indistinguishable from T lymphocyte IL-2 receptors by immunoprecipitation. Also, U937 IL-2 receptors bound biologically active IL-2. These resul...

Intrabody technology provides a novel approach to decipher the molecular mechanisms of protein function in cells. Single domains composed of only the variable regions (V(H) or V(L)) of antibodies are the smallest recombinant antibody fragments to be constructed thus far. In this study, we developed transgenic (Tg) mice expressing the V(H) or V(L) single domains derived from a monoclonal antibod...

Human immunodeficiency virus type 1 (HIV-1) infection decreases the production of interleukin-2 (IL-2) from CD4+ and CD8+ T cells. Recombinant IL-2 (rIl-2) has been given to HIV-infected individuals to generate significant increases in CD4+ T-cell counts. There are limited data regarding the effects of pregnancy and HIV infection on IL-2 production in humans. To investigate the effects of human...

BACKGROUND The proportion of cardiac transplant recipients with preexisting sensitization to HLA alloantigens has been increasing. Sensitization prolongs duration to obtaining a donor and predicts poorer long-term allograft survival because of increased risk of cellular rejections. We investigated the effect of cyclophosphamide pulse therapy in sensitized cardiac allograft recipients. METHODS...

In order to investigate the anti-tumor activity of a soluble B7-1/immunoglobulin G fusion protein and explore an effective method to eliminate immune escape of tumor cells, a recombinant vector encoding this fusion protein was constructed and constitutively expressed in Chinese hamster ovary cells. After purification with protein G affinity chromatography, the soluble fusion protein was tested ...

BACKGROUND/AIM The prevalence of hepatitis B infection is high worldwide with liver cirrhosis and hepatocellular carcinoma as important complications. Immunosuppression, especially from corticosteroids, is often cited as a cause of poor immune response and there is documented evidence of irrational administration of glucocorticoids to children and adults. Decreased expression of interleukin-4 a...

background: black seed (bs) is used in traditional medicine as a therapy for a variety of diseases including allergic asthma. materials and methods: in the present study, anti-inflammatory and immunomodulatory effects of bs on cytokine gene expression, lung airway eosinophilia and goblet cell hyperplasia were examined in a mouse mice model of allergic asthma. groups of 6-week-old female balb/c ...