|
| |
|
|
The role of human heat shock protein HSP70, HSP60 and mycobacterium bovis HSP65 in pathogenesis of graft versus host disease and rheumatoid/juvenile idiopathic arthritis
Nguyen, Thi Thu Hien ; Hromadníková, Ilona (advisor) ; Tučková, Ludmila (referee) ; Stříž, Ilja (referee)
We investigated IgG antibodies against Mycobacterium bovis heat shock protein 65 (M. bovis Hsp65) fragments produced by cleavage with cyanogen bromide (CNBr) in 10 healthy controls, 11 patients with juvenile idiopathic arthritis (JIA) and 10 children with various malignant and non-malignant diseases before allogeneic stem cell transplantation (SCT) by using Western blotting (WB). CNBr cleaved M. bovis Hsp65 to three larger fragments: Pl-163, molecular weight (Mw) 17.1 kDa; P191-285, Mw 10.4 kDa and P290-534, Mw 25.3 kDa. Humoral reactivity against M. bovis Hsp65 derived fragments differed on a case-by-case basis. The sera either of JIA patients ar those befare SCT reacted with individual M. bovis Hsp65 fragments more frequently when compared with healthy controls. While IgG anti-Hsp65 antibody levels showed no significant differences between the small studied cohorts, significantly higher levels of antibodies against M. bovis Hsp65 epitopes were observed in patients befare SCT and JIA patients when compared with healthy controls. Comparing WB reflectance densities (DRl and DR2), significantly elevated antibodies against Pl-163 (DRl: p=0.014; DR2: p=0.022) and P290-534 (DRl: p=0.009; DR2: p=0.003) epitopes were found in patients befare SCT. Similarly, significantly increased DRl and DR2 values of antibodies...
|
|
|
Characterization and identification of wheat allergens from foodstuffs containing wheat
Goliáš, Jaroslav ; Prokešová, Ludmila (referee) ; Tučková, Ludmila (advisor)
In some cases, ordinarily accepted food can evoke harmful clinical symptoms which are brought on by sensitivity on specific component of foodstuff. This harmful reaction on accepted food is called food allergy and it tends to go up in the world's population in last years. The food allergy affects especially children as well as adults. The important role in the food allergy plays wheat and foodstuff containing components of wheat. Wheat allergens from flour is already well-known, but man accepts wheat in food in the treated form (heat treated food) what can decrease or increase allergenicity. Moreover, enzymes presented in gastrointestinal tract of man can influence allergenicity of wheat allergens too. The goal of this thesis is characterization of allergens presented in heat treated wheat foodstuff and in wheat foodstuff digested by enzymes in gastrointestinal tract of man. Characterization of these altered and newly produced allergens can help find better diagnostic techniques, increase specificity of detection of IgE antibodies, enable pointed therapy of allergic patients or find and apply new and suitable diet.
|
|
|
Immune response of mouse respiratory tract after immunization with influenza virus
Berková, Veronika ; Tučková, Ludmila (referee) ; Prokešová, Ludmila (advisor)
Immune response of mice after mucosal immunization by influenza virus type A with bacterial adjuvant Bacillus firmus Immunization of mice by inactivated influenza virus via respiratory tract induces a good mucosal and systemic immune response if bacterial adjuvant - delipidated G+ non- pathogenic bacterium Baccillus firmus (DBF) - is used. BALB/c mice were immunized intratracheally (IT) or intranasally (IN) with inactivated influenza A/PR/8/34 virus in combination with adjuvant DBF (50, 100, 200 or 500μg per immunization dose). We tested the production of antibodies against homologous virus and cross-reacting antibodies against subtype H3N2, H6N2 and H9N2 viruses in serum and mucosal secretions of nose, lungs and intestine by the ELISA method. Immunization of mice with virus itself induces the production of antibodies against homologous virus and lower production of cross-reacting antibodies against heterologous subtypes. Immunostimulatory adjuvant activity (optimal 100μg per immunization dose) enhances systemic and mucosal antibody production against homologous virus (H1N1) and markedly against heterologous subtypes (H3N2, H6N2, H9N2), especially after IT immunization of mice. For evaluation of cellular immunity, we tested spleen cell proliferation of immunized mice by 3 H-thymidine incorporation and...
|
|
|
The role of dendritic cells in various pathological states
Sochorová, Klára ; Bartůňková, Jiřina (advisor) ; Tučková, Ludmila (referee) ; Stříž, Ilja (referee)
Dendritic cells (DCs) represent one of the most important components of the immune system. DCs are the most effective antigen presenting cells with a unique ability to stimulate naive T cells. They ensure the crosstalk between innate and adaptive immunity. They participate in anti-infectious and anti-tumor immune reaction as well as in the induction of tolerance. It is clear, that the defect in DC can be fatal for the organism. In our work we studied the biology of DCs and the disturbances of DCs function in pathological states. We analyzed DCs in patients with Bruton's tyrosin kinase deficiency, we compared the effect of vitamin D analogs, calcitriol and paricalcitol, on DCs and we set up the protocol of DC generation for the immunotherapy of ovarian cancer. In the study concerning btk deficiency and dendritic cell function we found profound impairment of IL-6 and TNF production in response to the stimulation by Toll-like receptor ligand 8. In the second part of our work we compared the effect of calcitriol and paricalcitol on DCs. Both drugs inhibited DCs maturation and decreased their ability to induce proliferation of antigen specific T cells. In the third part of our work we set up the protocol for the DCs, which are able to induce tumor specific immune responses. We optimized the form of tumor antigen...
|
|
| |
|
| |
|
| |
|
|
Účast monocytů a dendritických buněk v patogenezi celiakie
Tučková, Ludmila ; Palová-Jelínková, Lenka ; Rožková, D. ; Černá, M. ; Pecharová, Barbara ; Smythies, L. ; Smith, P. ; Dvořák, M. ; Fruhauf, P. ; Tlaskalová, Helena
This work studies the involvement of monocytes and dendritic cells in coelias cisease pathogenesis
|
|
| |
guest ::
RSS feed.