Úloha toll-like receptorů a stresového hormonu prolaktin v poruchách imunitního systému

Sluková, Veronika

Introduction: Diabetes mellitus is a polygene disease and on its manifestation have influence also enviromental factors. We have studied the role of extrapituitary prolactin (PRL) and toll-like receptors (TLR) 2 and 4 in the etiopathogenesis of autoimmune diabetes. PRL is mainly produced by hypophysis, but in small concentrations also in the periphery, where it participates in the immune reactions. Therefore, we investigated the influence of the levels of monocytic PRL mRNA on the development of diabetes, and also the influence of G allele of the -1149 G/T polymorphism in the extrapituitary promotor, which has already been associated with other autoimmune diseases. TLRs are receptors of the immune cells that recognize patogenes entering into the body. They play an important role in the iniciation of the immune response. We aimed to find out their function in the pathogenesis of the autoimmune diabetes by the detection of their mRNA levels and protein levels expressed on the cell surface of the monocytes. Material and methods: In this study we included 30 T1D and 21 LADA patients. Three control groups consisted of 23 T2D patients, 23 patients with a nondiabetic disease (neDM) and 60 healthy blood donors (TO). Blood samples have been taken from the individuals. From these blood samples we isolated...

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