Nukleární receptory- studium nových ligandů a význam genové variability

Carazo Fernández, Alejandro José

IN ENGLISH LANGUAGE Candidate: Mgr. Alejandro Carazo Fernández Supervisor: Prof. PharmDr. Petr Pávek, PhD. Title of the doctoral thesis: Nuclear receptors - new ligands study and importance of the genetic variability Nuclear receptors (NRs) constitute a superfamily of transcription factors, which regulate the expression of target genes upon the binding of a ligand. These receptors can be classified in steroid receptors, "orphan receptors" and "adopted orphan receptors" depending on the affinity to an endogenous ligand. Nuclear receptors play important roles in physiological processes and are widely distributed in the human body. Thus, adipogenesis, lipolysis, insulin sensitivity, oxidative metabolism, fatty acid homeostasis, cholesterol homeostasis, gluconeogenesis, glycogen homeostasis, triglyceride metabolism among other processes, are regulated by nuclear receptors. During my study, we have tested several sets of drugs, endogenous, natural and synthetic, in several nuclear receptors, focusing mainly on constitutive androstane receptor (CAR) and to a lesser extent on pregnane X receptor (PXR). My main aim was to find a new and reliable ligand or activator for human CAR. In addition, I aimed to study the mechanism of action by which these compounds interact with the receptor and how they trigger...

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