Obiettivo Arteriovenous malformations (AVMs) are characterised by abnormal connections between arteries and veins due to defects during vascular remodelling. Although often asymptomatic, AVMs can cause intense pain and patients affected present higher risk for strokes and aneurysms. Hereditary AVMs have a prevalence of 18 in 100000 people causing a two-fold increase in mortality in patients younger than 60 years of age. Hereditary AVMs are linked to defective Notch/BMP signalling, however they represent less than 10% of cases. The majority of AVMs do not present genetic mutations and remain idiopathic. Asides Notch/BMP signalling, vascular responses to haemodynamic forces generated by blood flow are crucial regulators of blood vessel formation. The passage of fluid results in physical forces on the endothelium, i.e. shear stress, which activate signalling cascades inside the cells necessary for vascular remodelling. Endothelial cells sense shear stress through proteins localised on their plasmatic membrane. The calcium channel Piezo1 is required for shear stress induced calcium signalling and its ablation resulted in serious vascular defects. Both shear stress and calcium signalling are known to affect the activation of Notch, a pathway essential during the process of arterial-venous specification and vascular remodelling. Therefore we hypothesise that Piezo1 plays a crucial role in arterial venous specification and onset of AVMs by modulating Notch signalling activation.This proposal utilises an interdisciplinary approach to decipher the new targets underlying the intricate and still unknown interaction of physical and molecular mechanisms responsible for defective arterial venous specification. The results of this research will potentially provide appealing diagnostic and therapeutic opportunities for both hereditary and idiopathic AVMs. Campo scientifico medical and health sciencesclinical medicinecardiologycardiovascular diseases Parole chiave Piezo1 Notch signalling shear stress AVMs Arterial Venous specification Programma(i) H2020-EU.1.3. - EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions Main Programme H2020-EU.1.3.2. - Nurturing excellence by means of cross-border and cross-sector mobility Argomento(i) MSCA-IF-2016 - Individual Fellowships Invito a presentare proposte H2020-MSCA-IF-2016 Vedi altri progetti per questo bando Meccanismo di finanziamento MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF) Coordinatore UNIVERSITY OF LEEDS Contribution nette de l'UE € 195 454,80 Indirizzo WOODHOUSE LANE LS2 9JT Leeds Regno Unito Mostra sulla mappa Regione Yorkshire and the Humber West Yorkshire Leeds Tipo di attività Higher or Secondary Education Establishments Collegamenti Contatta l’organizzazione Opens in new window Sito web Opens in new window Partecipazione a programmi di R&I dell'UE Opens in new window Rete di collaborazione HORIZON Opens in new window Costo totale € 195 454,80
