RT Journal Article T1 A comprehensive study of calcific aortic stenosis: from rabbit to human samples. A1 Mourino-Alvarez, Laura A1 Baldan-Martin, Montserrat A1 Sastre-Oliva, Tamara A1 Martin-Lorenzo, Marta A1 Maroto, Aroa Sanz A1 Corbacho-Alonso, Nerea A1 Rincon, Raul A1 Martin-Rojas, Tatiana A1 Lopez-Almodovar, Luis Fernando A1 Alvarez-Llamas, Gloria A1 Vivanco, Fernando A1 Padial, Luis Rodriguez A1 de la Cuesta, Fernando A1 Barderas, Maria Gonzalez K1 Aortic stenosis K1 Cardiovascular K1 Proteomics K1 Rabbit model AB The global incidence of calcific aortic stenosis (CAS) is increasing owing, in part, to a growing elderly population. The condition poses a great challenge to public health, because of the multiple comorbidities of these older patients. Using a rabbit model of CAS, we sought to characterize protein alterations associated with calcified valve tissue that can be ultimately measured in plasma as non-invasive biomarkers of CAS. Aortic valves from healthy and mild stenotic rabbits were analyzed by two-dimensional difference gel electrophoresis, and selected reaction monitoring was used to directly measure the differentially expressed proteins in plasma from the same rabbits to corroborate their potential as diagnostic indicators. Similar analyses were performed in plasma from human subjects, to examine the suitability of these diagnostic indicators for transfer to the clinical setting. Eight proteins were found to be differentially expressed in CAS tissue, but only three were also altered in plasma samples from rabbits and humans: transitional endoplasmic reticulum ATPase, tropomyosin α-1 chain and L-lactate dehydrogenase B chain. Results of receiver operating characteristic curves showed the discriminative power of the scores, which increased when the three proteins were analyzed as a panel. Our study shows that a molecular panel comprising three proteins related to osteoblastic differentiation could have utility as a serum CAS indicator and/or therapeutic target. YR 2018 FD 2018-06-19 LK https://hdl.handle.net/10668/25568 UL https://hdl.handle.net/10668/25568 LA en DS RISalud RD Apr 11, 2025