hrp0089s6.3 | Molecular Mechanisms of Tissue Sensitivity to Glucocorticoids: Potential Clinical Implications | ESPE2018

Chemical Modification of the Glucocorticoid Receptor as a Determinant of Tissue Glucocorticoid Sensitivity: Implications to Circadian Rhythms, Stress Response and Treatment of Pediatric Leukemia

Kino Tomoshige

Glucocorticoid hormones virtually influence all human functions both in a basal homeostatic condition and under stress. Thus, many other biological pathways adjust glucocorticoid actions in local tissues (tissue glucocorticoid sensitivity) by targeting the single receptor molecule glucocorticoid receptor (GR) as part of the regulatory loop coordinating complex human functions. Among them, chemical modification of GR, such as by acetylation and phosphorylation, is highlighted a...

hrp0092fc13.6 | Adrenals and HP Axis | ESPE2019

Insights Into the Role of Cortisol in the Formation of the Clock/Bmal1 Complex and its Interaction with dsDNA, via Molecular Dynamics Simulations

Nicolaides Nicolas , Raftopoulou Sofia , Kino Tomoshige , Vlachakis Dimitrios , Chrousos George

Background: The circadian rhythm-generating peripheral Clock/Bmal1 heterodimer complex regulates the circadian activities of many biological systems, including the hypothalamic-pituitary-adrenal (HPA) axis, by trans-activating or trans-repressing downstream target genes.Objective and Hypotheses: To investigate the potential role of elevated cortisol in Clock/Bmal1 heterodimer complex-generated circadian biorhythms, both ...

hrp0082fc1.1 | Adrenal | ESPE2014

Molecular mechanisms of nongenomic glucocorticoid actions: the role of human glucocorticoid receptor S-palmitoylation

Nicolaides Nicolas C , Roberts Michael L , Kino Tomoshige , Katsantoni Eleni , Sertedaki Amalia , Chrousos George P , Charmandari Evangelia

Background: In humans, glucocorticoids (GCs) regulate a broad spectrum of physiologic functions, exerting both genomic and nongenomic actions through their ubiquitously expressed glucocorticoid receptor (hGR). The rapid nongenomic actions of GCs are likely to be mediated by membrane hGRs that transduce the glucocorticoid signal via activation of kinases. S-palmitoylation plays an important role in plasma membrane localization and occurs through a highly conserved nine amino ac...

hrp0086rfc1.3 | Adrenals | ESPE2016

Impaired Cardiac Function in a Mouse Model of Generalized Glucocorticoid Resistance

Lamprokostopoulou Agaristi , Varela Aimilia , Katsimpoulas Michalis , Dimitriou Constantinos , Athanasiadis Nikos , Soultou Eleana , Stefa Alketa , Mavroides Manolis , Davos Constantinos H. , Chrousos George P. , Kino Tomoshige , Georgopoulos Spiros , Charmandari Evangelia

Background: Glucocorticoids regulate a broad spectrum of physiologic functions essential for life and exert their actions through their ubiquitously expressed glucocorticoid receptor (GR). The GR interacts with several molecules, including the non-coding RNA growth arrest-specific 5 (Gas5), which decreases the transcriptional activity of the GR by preventing its binding to DNA, and reduces tissue sensitivity to glucocorticoids.Objective and Hypotheses: T...

hrp0082p1-d2-3 | Adrenals & HP Axis | ESPE2014

Transient Generalized Glucocorticoid Hypersensitivity: Clinical Manifestations, Endocrinologic Evaluation, and Transcriptomic Profile: the Potential Role of nf-κb

Nicolaides Nicolas C , Lamprokostopoulou Agaristi , Polyzos Alexandros , Kino Tomoshige , Katsantoni Eleni , Triantafyllou Panagiota , Christophoridis Athanasios , Katzos George , Drakopoulou Maria , Sertedaki Amalia , Chrousos George P , Charmandari Evangelia

Background: Transient generalized glucocorticoid hypersensitivity is a rare disorder characterized by increased tissue sensitivity to glucocorticoids and compensatory hypoactivation of the hypothalamic┬ľpituitary┬ľadrenal (HPA) axis. The condition itself and the molecular mechanisms that underlie its pathophysiology have not been elucidated as yet. Adenovirus 36 has been reported to cause obesity in various animal species.Objective and Hypotheses...