RT Journal Article T1 Quantitative proteomics in medication-related osteonecrosis of the jaw: a proof-of-concept study A1 Lorenzo Pouso, Alejandro Ismael A1 Bravo Lopez, Susana Belén A1 Carballo García, Francisco Javier A1 Chantada Vázquez, María del Pilar A1 Bagán Sebastián, José Vicente A1 Bagán Debon, Leticia María A1 Chamorro Petronacci, Cintia Micaela A1 Conde Amboage, Mercedes A1 López López, Rafael A1 García García, Abel A1 Pérez-Sayáns García, Mario K1 Biomarker discovery K1 MRONJ K1 Prevention K1 Prognosis K1 Proteomics K1 Saliva AB Objective: Medication-related osteonecrosis of the jaw (MRONJ) is a paradoxical effect associated with bone-modifying agents (BMAs) and other drugs. Currently, no valuable diagnostic or prognosis biomarkers exist. The goal of this research was to study MRONJ-related salivary proteome. Materials and Methods: This case–control aimed to study salivary proteome in MRONJ versus control groups (i) formed from BMAs consumers and (ii) healthy individuals to unravel biomarkers. Thirty-eight samples of unstimulated whole saliva (18 MRONJ patients, 10 BMA consumers, and 10 healthy controls) were collected. Proteomic analysis by SWATH-MS coupled with bioinformatics analysis was executed. ResultsA total of 586 proteins were identified, 175 proteins showed significant differences among MRONJ versus controls. SWATH-MS revealed differentially expressed proteins among three groups, which have never been isolated. These proteins had distinct roles including cell envelope organization, positive regulation of vesicle fusion, positive regulation of receptor binding, or regulation of low-density lipoprotein particle clearance. Integrative analysis prioritized 3 proteins (MMP9, AACT, and HBD). Under receiver-operating characteristic analysis, this panel discriminated MRONJ with a sensitivity of 90% and a specificity of 78.9%. Conclusion: These findings may inform a novel biomarker panel for MRONJ prediction or diagnosis. Nonetheless, further research is needed to validate this panel PB Wiley YR 2022 FD 2022 LK http://hdl.handle.net/10347/29271 UL http://hdl.handle.net/10347/29271 LA eng NO Lorenzo-Pouso, A. I., Bravo, S. B., Carballo, J., del Chantada-Vázquez, M. P., Bagán, J., Bagán, L., Chamorro-Petronacci, C. M., Conde-Amboage, M., López-López, R., García-García, A., & Pérez-Sayáns, M. (2022). Quantitative proteomics in medication-related osteonecrosis of the jaw: a proof-of- concept study. Oral Diseases, 00, 1– 13. https://doi.org/10.1111/odi.14201 DS Minerva RD 24 abr 2026