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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Modulation of RNA demethylase FTO function in SH-SY5Y cells: the effect on insulin signaling and mitochondrial respiration
 Čočková, Zuzana ; Novotný, Jiří (advisor) ; Hlaváčková, Markéta (referee)
Aim of this thesis was to observe changes in oxidative metabolism and expression of important neuroenergetic proteins in human neuroblastoma cell line SH-SY5Y due to inhibition of FTO. FTO is a RNA demethylase that uses N6-methyladenosine as substrate. Differences in enzyme expression are connected to broad area of effects involving energy homeostasis. Mitochondria are cellular powerhouses, a key elements in production of energy and metabolic substrates, yet a source of potentially dangerous reactive oxygen species (ROS) and analogous reactive molecules. In order to better understand FTO purpose in neuronal energetic metabolism, we examined mitochondrial respiratory chain. Using high-resolution respirometry we were capable of observing impairment in mitochondrial respiration after FTO inhibition. There was considerable decline in endogenous respiration, maximal respiration rate and reserve capacity. In order to obtain more detailed view into mitochondrial respiration, expression levels of electron-transport complexes were quantified by Western blot technique. Slight reduction was identified in subunits of complex I and IV. However, the most prominent alteration was seen in complex II subunit. There were no differences in expression of complex III and ATP synthase subunits. Beside disrupted activity...
Detailed record
Modulation of RNA demethylase FTO function in SH-SY5Y cells: the effect on insulin signaling and mitochondrial respiration
 Čočková, Zuzana ; Novotný, Jiří (advisor) ; Hlaváčková, Markéta (referee)
Aim of this thesis was to observe changes in oxidative metabolism and expression of important neuroenergetic proteins in human neuroblastoma cell line SH-SY5Y due to inhibition of FTO. FTO is a RNA demethylase that uses N6-methyladenosine as substrate. Differences in enzyme expression are connected to broad area of effects involving energy homeostasis. Mitochondria are cellular powerhouses, a key elements in production of energy and metabolic substrates, yet a source of potentially dangerous reactive oxygen species (ROS) and analogous reactive molecules. In order to better understand FTO purpose in neuronal energetic metabolism, we examined mitochondrial respiratory chain. Using high-resolution respirometry we were capable of observing impairment in mitochondrial respiration after FTO inhibition. There was considerable decline in endogenous respiration, maximal respiration rate and reserve capacity. In order to obtain more detailed view into mitochondrial respiration, expression levels of electron-transport complexes were quantified by Western blot technique. Slight reduction was identified in subunits of complex I and IV. However, the most prominent alteration was seen in complex II subunit. There were no differences in expression of complex III and ATP synthase subunits. Beside disrupted activity...
Detailed record

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