RT Journal Article T1 DoE-based development of celecoxib loaded PLGA nanoparticles: In ovo assessment of its antiangiogenic effect A1 Alonso González, Mario A1 Quispe Chauca, Prissila A1 Fernández Carballido, Ana María A1 Lozza, Irene A1 Martín Sabroso, Cristina A1 Fraguas Sánchez, Ana Isabel AB Abnormal angiogenesis plays a main role in the pathogenesis of many diseases such as cancer, and inflammatory autoimmune disorders among others, and its inhibition represents a potential strategy for their management. Celecoxib (CXB) that is one of the most prescribed selective COX-2 inhibitors and is currently approved for the treatment of osteoarthritis, rheumatoid arthritis, and ankylosing spondylitis inhibits angiogenesis. The objective of this manuscript was to design, develop, and characterize polymeric nanoparticles for the parenteral administration of CXB which the aim of facilitating its administration and improving its antiangiogenic activity while decreasing its adverse effects. A Plackett-Burman design was used to optimize the formulation. The PVA concentration, the sonication time, the sonicator amplitude and the CXB:PLGA ratio were selected as independent variables and particle size, polydispersity index, drug loading, and entrapment efficiency as responses. Optimized nanoparticles (formulations F2, F6 and F9) showed a particle size around 280 nm, a low polydispersion (PDI ≤ 0.2), a negative zeta potential around -25mV, a high entrapment efficiency (above 88%) and a controlled drug release for at least 10 days. Moreover, they were physically and chemically stable for at least 3 months when stored at 4°C. Interestingly, CXB-loaded nanoparticles showed a higher angiogenesis inhibition than CXB in solution administered at the same concentration. F9 nanoparticles that were prepared using PVA at 0.5%, a sonication time of 7 minutes, a sonicator amplitude of 80% and a CXB:PLGA ratio of 20:100 were selected as the most suitable CXB-formulation. It represents a promising strategy to administer CXB and improve its efficacy in disorders with pathological angiogenesis such as cancer and arthritic diseases. PB Elsevier SN 0939-6411 YR 2022 FD 2022-10-08 LK https://hdl.handle.net/20.500.14352/72578 UL https://hdl.handle.net/20.500.14352/72578 LA eng NO CRUE-CSIC (Acuerdos Transformativos 2022) NO Universidad Complutense/Banco de Santander NO University of “La Sapienza” of Rome DS Docta Complutense RD 26 ago 2024