Article (Scientific journals)
RGD-tagging of star-shaped PLA-PEG micellar nanoassemblies enhances doxorubicin efficacy against osteosarcoma.
Oliva, Roberto; Torcasio, Serena; COULEMBIER, Olivier et al.
2024In International Journal of Pharmaceutics, 657, p. 124183
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Keywords :
Block copolymers; Dimerization; Drug delivery; Nanoparticles; Peptide; Targeting
Abstract :
[en] We developed cyclic RGD-tagged polymeric micellar nanoassemblies for sustained delivery of Doxorubicin (Dox) endowed with significant cytotoxic effect against MG63, SAOS-2, and U2-OS osteosarcoma cells without compromising the viability of healthy osteoblasts (hFOBs). Targeted polymeric micellar nanoassemblies (RGD-NanoStar@Dox) enabled Dox to reach the nucleus of MG63, SAOS-2, and U2-OS cells causing the same cytotoxic effect as free Dox, unlike untargeted micellar nanoassemblies (NanoStar@Dox) which failed to reach the nucleus and resulted ineffective, demonstrating the crucial role of cyclic RGD peptide in driving cellular uptake and accumulation mechanisms in osteosarcoma cells. Micellar nanoassemblies were obtained by nanoformulation of three-armed star PLA-PEG copolymers properly synthetized with and without decoration with the cyclic-RGDyK peptide (Arg-Gly-Asp-D-Tyr-Lys). The optimal RGD-NanoStar@Dox nanoformulation obtained by nanoprecipitation method (8% drug loading; 35% encapsulation efficiency) provided a prolonged and sustained drug release with a rate significantly lower than that of the free drug under the same experimental conditions. Moreover, the nanosystem preserved Dox from the natural degradation occurring under physiological conditions (i.e., dimerization and consequent precipitation) serving as a slow-release "drug reservoir" ensuring an extended biological activity over the time.
Disciplines :
Chemistry
Author, co-author :
Oliva, Roberto ;  Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, V.le F. Stagno d'Alcontres 31, 98166 Messina, Italy
Torcasio, Serena ;  Université de Mons - UMONS > Faculté des Sciences > Service des Matériaux Polymères et Composites
COULEMBIER, Olivier  ;  Université de Mons - UMONS > Faculté des Sciences > Service des Matériaux Polymères et Composites
Piperno, Anna;  Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, V.le F. Stagno d'Alcontres 31, 98166 Messina, Italy
Mazzaglia, Antonino ;  CNR-ISMN, National Council of Research, Institute for the Study of Nanostructured Materials, URT of Messina c/o Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, V.le, F. Stagno d'Alcontres, 31, 98166 Messina, Italy
Scalese, Silvia ;  CNR-IMM, Consiglio Nazionale delle Ricerche - Istituto per la Microelettronica e Microsistemi, Ottava Strada n.5, 95121 Catania, Italy
Rossi, Arianna ;  Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, V.le F. Stagno d'Alcontres 31, 98166 Messina, Italy, CNR-ISSMC, Institute of Science, Technology and Sustainability for Ceramics, Via Granarolo 64, 48018 Faenza, RA, Italy
Bassi, Giada ;  CNR-ISSMC, Institute of Science, Technology and Sustainability for Ceramics, Via Granarolo 64, 48018 Faenza, RA, Italy, Department of Neuroscience, Imaging and Clinical Science, University of Studies "G. D'Annunzio", 66100 Chieti, CH, Italy
Panseri, Silvia ;  CNR-ISSMC, Institute of Science, Technology and Sustainability for Ceramics, Via Granarolo 64, 48018 Faenza, RA, Italy
Montesi, Monica ;  CNR-ISSMC, Institute of Science, Technology and Sustainability for Ceramics, Via Granarolo 64, 48018 Faenza, RA, Italy
Scala, Angela ;  Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, V.le F. Stagno d'Alcontres 31, 98166 Messina, Italy. Electronic address: ascala@unime.it
Language :
English
Title :
RGD-tagging of star-shaped PLA-PEG micellar nanoassemblies enhances doxorubicin efficacy against osteosarcoma.
Publication date :
29 April 2024
Journal title :
International Journal of Pharmaceutics
ISSN :
0378-5173
eISSN :
1873-3476
Publisher :
Elsevier BV, Netherlands
Volume :
657
Pages :
124183
Peer reviewed :
Peer Reviewed verified by ORBi
Research unit :
S816 - Matériaux Polymères et Composites
Research institute :
R400 - Institut de Recherche en Science et Ingénierie des Matériaux
Funders :
European Union
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since 05 May 2024

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