Université de Fribourg

Backbone and side chain NMR assignments of the H-NOX domain from Nostoc sp. in complex with BAY58-2667 (cinaciguat)

Makrynitsa, Garyfallia I. ; Argyriou, Aikaterini I. ; Dalkas, Georgios ; Georgopoulou, Dimitra A. ; Bantzi, Marina ; Giannis, Athanassios ; Papapetropoulos, Andreas ; Spyroulias, Georgios A.

In: Biomolecular NMR Assignments, 2020, p. -

Soluble guanylate cyclase (sGC) enzyme is activated by the gaseous signaling agent nitric oxide (NO) and triggers the conversion of GTP (guanosine 5′-triphosphate) to cGMP (cyclic guanylyl monophosphate). It contains the heme binding H-NOX (heme- nitric oxide/oxygen binding) domain which serves as the sensor of NO and it is highly conserved across eukaryotes and bacteria as well. Many...

Université de Fribourg

Screening of heteroaromatic scaffolds against cystathionine beta-synthase enables identification of substituted pyrazolo[3,4-c]pyridines as potent and selective orthosteric inhibitors

Fantel, Anna-Maria ; Myrianthopoulos, Vassilios ; Georgoulis, Anastasios ; Lougiakis, Nikolaos ; Zantza, Iliana ; Lamprinidis, George ; Augsburger, Fiona ; Marakos, Panagiotis ; Vorgias, Constantinos E. ; Szabo, Csaba ; Pouli, Nicole ; Papapetropoulos, Andreas ; Mikros, Emmanuel

In: Molecules, 2020, vol. 25, no. 16, p. 3739

Cystathionine β-synthase (CBS) is a key enzyme in the production of the signaling molecule hydrogen sulfide, deregulation of which is known to contribute to a range of serious pathological states. Involvement of hydrogen sulfide in pathways of paramount importance for cellular homeostasis renders CBS a promising drug target. An in-house focused library of heteroaromatic compounds was...

Université de Fribourg

3-Mercaptopyruvate sulfurtransferase supports endothelial cell angiogenesis and bioenergetics

Abdollahi Govar, Armita ; Törő, Gábor ; Szaniszlo, Peter ; Pavlidou, Athanasia ; Bibli, Sofia‐Iris ; Thanki, Ketan ; Resto, Vicente A. ; Chao, Celia ; Hellmich, Mark R. ; Szabo, Csaba ; Papapetropoulos, Andreas ; Módis, Katalin

In: British Journal of Pharmacology, 2020, vol. 177, no. 4, p. 866–883

During angiogenesis, quiescent endothelial cells (ECs) are activated by various stimuli to form new blood vessels from pre‐existing ones in physiological and pathological conditions. Many research groups have shown that hydrogen sulfide (H2S), the newest member of the gasotransmitter family, acts as a proangiogenic factor. To date, very little is known about the regulatory role of...

Université de Fribourg

Cystathionine γ Lyase Sulfhydrates the RNA Binding Protein Human Antigen R to Preserve Endothelial Cell Function and Delay Atherogenesis

Bibli, Sofia-Iris ; Hu, Jiong ; Sigala, Fragiska ; Wittig, Ilka ; Heidler, Juliana ; Zukunft, Sven ; Tsilimigras, Diamantis I. ; Randriamboavonjy, Voahanginirina ; Wittig, Janina ; Kojonazarov, Baktybek ; Schürmann, Christoph ; Siragusa, Mauro ; Siuda, Daniel ; Luck, Bert ; Malik, Randa Abdel ; Filis, Konstantinos A. ; Zografos, George ; Chen, Chen ; Wang, Dao Wen ; Pfeilschifter, Josef ; Brandes, Ralf P. ; Szabo, Csaba ; Papapetropoulos, Andreas ; Fleming, Ingrid

In: Circulation, 2019, vol. 139, no. 1, p. 101–114

Hydrogen sulfide (H2S), generated by cystathionine γ lyase (CSE), is an important endogenous regulator of vascular function. The aim of the present study was to investigate the control and consequences of CSE activity in endothelial cells under physiological and proatherogenic conditions.