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Characterization of Biological Material Adsorption to the Surface of Nanoparticles without a Prior Separation Step: a Case Study of Glioblastoma-Targeting Peptide and Lipid Nanocapsules.
Gazaille, Claire; Sicot, Marion; Akiki, Marthe; Lautram, Nolwenn; Dupont, Aurélien; Saulnier, Patrick; Eyer, Joël; Bastiat, Guillaume.
Afiliação
  • Gazaille C; University of Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000, Angers, France.
  • Sicot M; University of Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000, Angers, France.
  • Akiki M; University of Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000, Angers, France.
  • Lautram N; University of Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000, Angers, France.
  • Dupont A; University of Rennes, CNRS, Inserm, BIOSIT, UMS 3480, US_S 018, F-35000, Rennes, France.
  • Saulnier P; University of Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000, Angers, France.
  • Eyer J; University of Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000, Angers, France.
  • Bastiat G; University of Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000, Angers, France. guillaume.bastiat@univ-angers.fr.
Pharm Res ; 38(4): 681-691, 2021 Apr.
Article em En | MEDLINE | ID: mdl-33829340
PURPOSE: Current preclinical therapeutic strategies involving nanomedicine require increasingly sophisticated nanosystems and the characterization of the complexity of such nanoassemblies is becoming a major issue. Accurate characterization is often the factor that can accelerate the translational approaches of nanomedicines and their pharmaceutical development to reach the clinic faster. We conducted a case study involving the adsorption of the NFL-TBS.40-63 (NFL) peptide (derived from neurofilaments) to the surface of lipid nanocapsules (LNCs) (a combined nanosystem used to target glioblastoma cells) to develop an analytical approach combining the separation and the quantification in a single step, leading to the characterization of the proportion of free peptide and thus the proportion of peptide adsorbed to the lipid nanocapsule surface. METHODS: LNC suspensions, NFL peptide solution and LNC/NFL peptide mixtures were characterized using a Size-Exclusion Chromatography method (with a chromatographic apparatus). In addition, this method was compared to centrifugal-filtration devices, currently used in literature for this case study. RESULTS: Combining the steps for separation and characterization in one single sequence improved the accuracy and robustness of the data and led to reproducible results. Moreover the data deviation observed for the centrifugal-filtration devices demonstrated the limits for this increasingly used characterization approach, explained by the poor separation quality and highlighting the importance for the method optimization. The high potential of the technique was shown, proving that H-bond and/or electrostatic interactions mediate adsorption of the NFL peptide to the surface of LNCs. CONCLUSIONS: Used only as a characterization tool, the process using chromatographic apparatus is less time and solvent consuming than classical Size-Exclusion Chromatography columns only used for separation. It could be a promising tool for the scientific community for characterizing the interactions of other combinations of nanosystems and active biological agents.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Fragmentos de Peptídeos / Neoplasias Encefálicas / Portadores de Fármacos / Proteínas de Neurofilamentos / Glioblastoma / Nanocápsulas Limite: Humans Idioma: En Revista: Pharm Res Ano de publicação: 2021 Tipo de documento: Article País de afiliação: França

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Fragmentos de Peptídeos / Neoplasias Encefálicas / Portadores de Fármacos / Proteínas de Neurofilamentos / Glioblastoma / Nanocápsulas Limite: Humans Idioma: En Revista: Pharm Res Ano de publicação: 2021 Tipo de documento: Article País de afiliação: França