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RESEARCH PRODUCT
Deregulation of Notch1 pathway and circulating endothelial progenitor cell (EPC) number in patients with bicuspid aortic valve with and without ascending aorta aneurysm
Maurizio ForteCarmela Rita BalistreriFloriana CrapanzanoGiovanni RuvoloAntonino G.m. MarulloLeonardo SchironeSebastiano SciarrettaElena CavarrettaAlberto AllegraCalogera PisanoGiacomo FratiErnesto Grecosubject
Male0301 basic medicineAortic valveNotch1 signaling pathwatHeart Valve Diseases030204 cardiovascular system & hematologyAortic aneurysm0302 clinical medicineBicuspid aortic valveBicuspid Aortic Valve DiseaseNotch Signaling Pathwaycirculating EPC populationsReceptor Notch1ReceptorAortaEndothelial Progenitor CellsAged 80 and overMultidisciplinaryQRMiddle AgedAortic Aneurysmmedicine.anatomical_structureAortic Valvecardiovascular systemCardiologyMedicineFemaleTricuspid ValveSignal TransductionAdultmedicine.medical_specialtyBicuspid aortic valveEndothelial Progenitor Cells (EPC)ScienceNotch signaling pathwayBicuspid Aortic Valve (BAV)Endothelial progenitor cellArticleBicuspid aortic valve; Notch1 signaling pathwat; ascending aortic aneurysm03 medical and health sciencesascending aortic aneurysmInternal medicinemedicineHumansIn patientcardiovascular diseasesProgenitor cellNotch 1 signaling pathwayAgedTricuspid Aortic Valve (TAV)Ascending Aorta Aneurysm (AAA)business.industrySettore MED/23 - Chirurgia Cardiacamedicine.disease030104 developmental biologybusinessdescription
AbstractBicuspid aortic valve (BAV) is frequently associated with the development of ascending aortic aneurysm, even if the underlying mechanisms remain to be clarified. Here, we investigated if a deregulation of Notch1 signaling pathway and endothelial progenitor cells (EPCs) number is associated with BAV disease and an early ascending aortic aneurysm (AAA) onset. For this purpose, 70 subjects with BAV (M/F 50/20; mean age: 58.8 ± 14.8 years) and 70 subjects with tricuspid aortic valve (TAV) (M/F 35/35; mean age: 69.1 ± 12.8 years) and AAA complicated or not, were included. Interestingly, patients with AAA showed a significant increase in circulating Notch1 levels and EPC number than subjects without AAA. However, circulating Notch1 levels and EPC number were significantly lower in BAV subjects than TAV patients either in the presence or absence of AAA. Finally, Notch pathway was activated to a greater extent in aortic aneurysmatic portions with respect to healthy aortic fragments in both BAV and TAV patients. However, the expression of genes encoding components and ligands of Notch pathway in aortic tissues was significantly lower in BAV than TAV subjects. Our study demonstrates that BAV subjects are characterized by a significant decrease in both tissue and circulating levels of Notch pathway, and in blood EPC number than TAV patients, either in presence or absence of AAA disease.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-09-01 |