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Immune response of different subpopulations of dendritic cells to probiotic strain of E. coli O83:K24:H31
Gorelová, Miroslava ; Hrdý, Jiří (advisor) ; Černý, Jan (referee)
Allergy as one of the most frequent pathologies worldwide belongs to illnesses with constantly increasing incidence even amongst young children. It develops in genetically predisposed individuals whose dendritic cells (DC) are, after contact with allergen, able to polarize the immune response predominantly to Th2, while Th1 response is supressed. One of the possible preventive measures to avoid an allergic disease developement could be an early postnatal supplementation of chosen probiotic bacterial strains or their mixtures. One of them is a well characterized strain Escherichia coli O83:K24:H31 (E. coli O83). Administering of this probiotic vaccine called Colifant Newborn is showing to be an effective prophylaxis to decrese the incidence of allergies in children with predisposition to their developement. The aim of my diploma thesis was to experimentally confirm the capacity of E. coli O83 to support maturation of two main subpopulations of newborn DC available from cord blood: myeloid dentritic cells - mDC and plasmacytoid dentritic cells - pDC. This DC subpopulations were isolated from cord blood of children born to healthy (non-allergic) mothers who had a low risk of allergy development or from children of allergic mothers who had an increased risk of allergy development. Subsequently, after...
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Immune response of different subpopulations of dendritic cells to probiotic strain of E. coli O83:K24:H31
Gorelová, Miroslava ; Hrdý, Jiří (advisor) ; Grobárová, Valéria (referee)
Allergy, as one of the worldwide most frequent pathologies, belongs to illnesses with constantly growing incidence among young children. In genetically predisposed individuals, dendritic cells are able to polarize the immune response of Th2 in contact with the allergen. Postnatal probiotic supplementation could be one the preventive measure to prevent the development of allergic diseases. It has been shown that introduction of selected probiotic strains or mixtures can prevent development of allergy. In this diploma thesis, the capacity of probiotic strain Escherichia coli O83:K24:H31 (E. coli O83) to support maturation of dendritic cells (DC) and polarization of immune responses was tested. Introduction of this probiotic vaccine called Colinfant Newborn appears to be suitable preventive measure, lowering allergy incidence in children with predisposition to development of allergy. The aim of this diploma thesis was to observe capacity of E. coli O83 to support maturation of the two main subpopulations of dendritic cells (myeloid dendritic cells - mDC and plasmacytoid dendritic cells - pDC) in cord blood of newborns of healthy mothers (children with relatively low risk for allergy development) and allergic mothers (children with relatively high risk for allergy development). To achieve this goal,...
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Immune response of different subpopulations of dendritic cells to probiotic strain of E. coli O83:K24:H31
Gorelová, Miroslava ; Hrdý, Jiří (advisor) ; Grobárová, Valéria (referee)
Allergy, as one of the worldwide most frequent pathologies, belongs to illnesses with constantly growing incidence among young children. Identification of prognostic markers pointing to increased risk of allergy development, allows introduction of early preventive measures. Probiotic supplementation could be one the preventive measure. It has been shown that introduction of selected probiotic strains or mixtures can prevent development of allergy. In this diploma thesis, the capacity of probiotic strain Escherichia coli O83:K24:H31 (E. coli O83) to support maturation of dendritic cells and polarization of immune responses was tested. Introduction of this probiotic vaccine called Colinfant Newborn appears to be suitable preventive measure, lowering allergy incidence in children with predisposition to development of allergy. The capacity of E. coli O83 to support maturation of the two main subpopulations of dendritic cells (myeloid dendritic cells - mDC and plasmacytoid dendritic cells - pDC) in cord blood of newborns of healthy mothers (children with relatively low risk for allergy development) and allergic mothers (children with relatively high risk for allergy development) was measured by flow cytometry. The presence of cytokines and transcription factors characteristic for particular...
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