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Study of the spontaneous nano-emulsification process with different octadecyl succinic anhydride derivatives. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Belcastro E, Rehman AU, Remila L, Park SH, Gong DS, Anton N, Auger C, Lefebvre O, Goetz JG, Collot M, Klymchenko AS, Vandamme TF, Schini-Kerth VB. Fluorescent nanocarriers targeting VCAM-1 for early detection of senescent endothelial cells. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2021; 34:102379. [PMID: 33713860 DOI: 10.1016/j.nano.2021.102379] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Revised: 01/29/2021] [Accepted: 02/20/2021] [Indexed: 10/21/2022]
Abstract
Endothelial senescence has been identified as an early event in the development of endothelial dysfunction, a hallmark of cardiovascular disease. This study developed theranostic nanocarriers (NC) decorated with VCAM-1 antibodies (NC-VCAM-1) in order to target cell surface VCAM-1, which is overexpressed in senescent endothelial cells (ECs) for diagnostic and therapeutic purposes. Incubation of Ang II-induced premature senescent ECs or replicative senescent ECs with NC-VCAM-1 loaded with lipophilic fluorescent dyes showed higher fluorescence signals than healthy EC, which was dependent on the NC size and VCAM-1 antibodies concentration, and not observed following masking of VCAM-1. NC loaded with omega 3 polyunsaturated fatty acid (NC-EPA:DHA6:1) were more effective than native EPA:DHA 6:1 to prevent Ang II-induced VCAM-1 and p53 upregulation, and SA-β-galactosidase activity in coronary artery segments. These theranostic NC might be of interest to evaluate the extent and localization of endothelial senescence and to prevent pro-senescent endothelial responses.
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Affiliation(s)
- Eugenia Belcastro
- INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine, Faculty of Pharmacy
| | - Asad Ur Rehman
- University of Strasbourg, CNRS, CAMB UMR 7199, Strasbourg, France
| | - Lamia Remila
- INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine, Faculty of Pharmacy
| | - Sin-Hee Park
- INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine, Faculty of Pharmacy
| | - Dal Seong Gong
- INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine, Faculty of Pharmacy
| | - Nicolas Anton
- INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine, Faculty of Pharmacy; University of Strasbourg, CNRS, CAMB UMR 7199, Strasbourg, France
| | - Cyril Auger
- INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine, Faculty of Pharmacy
| | | | | | - Mayeul Collot
- CNRS UMR 7213, Laboratory of Biophotonics and Pharmacology, University of Strasbourg, Strasbourg, France
| | - Andrey S Klymchenko
- CNRS UMR 7213, Laboratory of Biophotonics and Pharmacology, University of Strasbourg, Strasbourg, France
| | - Thierry F Vandamme
- INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine, Faculty of Pharmacy; University of Strasbourg, CNRS, CAMB UMR 7199, Strasbourg, France
| | - Valérie B Schini-Kerth
- INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine, Faculty of Pharmacy.
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Rehman AU, Anton N, Bou S, Schild J, Messaddeq N, Vandamme T, Akram S, Klymchenko A, Collot M. Tunable functionalization of nano-emulsions using amphiphilic polymers. SOFT MATTER 2021; 17:1788-1795. [PMID: 33398307 DOI: 10.1039/d0sm01952f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Nano-emulsions are defined as stable oil droplets sizing below 300 nm. Their singular particularity lies in the loading capabilities of their oily core, much higher than other kinds of carrier. On the other hand, functionalizing the dynamic oil/water interface, to date, has remained a challenge. To ensure the best anchoring of the reactive functions onto the surface of the droplets, we have designed specific amphiphilic polymers (APs) based on poly(maleic anhydride-alt-1-octadecene), stabilizing the nano-emulsions instead of surfactants. Aliphatic C18 chains of the APs are anchored in the droplet core, while the hydrophilic parts of the APs are poly(ethylene glycol) (PEG) chains. In addition, PEG chains are terminated with reactive (i) azide functions in order to prove the concept of the droplet decoration with clickable rhodamine (Rh-DBCO, specifically synthesized for this study), or (ii) biotin functions to verify the potential droplet functionalization with fluorescent streptavidin (streptavidin-AF-488). This study describes AP synthesis, physico-chemical characterization of the functional droplets (electron microscopy), and finally fluorescence labeling and droplet decoration. To conclude, these APs constitute an interesting solution for the stable functionalization of nano-emulsion droplets, paving a new way for the applications of nano-emulsions in targeting drug delivery.
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Affiliation(s)
- Asad Ur Rehman
- Université de Strasbourg, CNRS, CAMB UMR 7199, F-67000 Strasbourg, France.
| | - Nicolas Anton
- Université de Strasbourg, CNRS, CAMB UMR 7199, F-67000 Strasbourg, France. and INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine (RNM), FMTS, Université de Strasbourg, F-67000 Strasbourg, France
| | - Sophie Bou
- Université de Strasbourg, CNRS, LPB 7021, F-67000 Strasbourg, France
| | - Jérémy Schild
- Université de Strasbourg, CNRS, LPB 7021, F-67000 Strasbourg, France
| | - Nadia Messaddeq
- Université de Strasbourg, IGBMC, Inserm U1258, CNRS UMR7104, F-67000 Strasbourg, France.
| | - Thierry Vandamme
- Université de Strasbourg, CNRS, CAMB UMR 7199, F-67000 Strasbourg, France. and INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine (RNM), FMTS, Université de Strasbourg, F-67000 Strasbourg, France
| | - Salman Akram
- Université de Strasbourg, CNRS, CAMB UMR 7199, F-67000 Strasbourg, France.
| | - Andrey Klymchenko
- Université de Strasbourg, CNRS, LPB 7021, F-67000 Strasbourg, France
| | - Mayeul Collot
- Université de Strasbourg, CNRS, LPB 7021, F-67000 Strasbourg, France
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Ding S, Mustafa B, Anton N, Serra CA, Chan-Seng D, Vandamme TF. Production of lipophilic nanogels by spontaneous emulsification. Int J Pharm 2020; 585:119481. [PMID: 32473375 DOI: 10.1016/j.ijpharm.2020.119481] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 05/03/2020] [Accepted: 05/25/2020] [Indexed: 11/28/2022]
Abstract
Nanosized gel particles, so-called nanogels, have attracted substantial interest in different application fields, thanks to their controllable and three-dimensional physical structure, good mechanical properties and potential biocompatibility. Literature reports many technologies for their preparation and design, however a recurrent limitation remains in their broad size distributions as well as in the poor size control. Therefore, the monodisperse and size-controlled nanogels preparation by simple process -like emulsification- is a real challenge still in abeyance to date. In this study we propose an original low energy emulsification approach for the production of monodisperse nanogels, for which the size can be finely controlled in the range 30 to 200 nm. The principle lies in the fabrication of a direct nano-emulsion containing both oil (medium chain triglycerides) and a bi-functional acrylate monomer. The nanogels are thus formed in situ upon UV irradiation of the droplet suspension. Advantage of such modification of the oil nano-carriers are the potential modulation of the release of encapsulated drugs, as a function of the density and/or properties of the polymer chain network entrapped in the oil nano-droplets. This hypothesis was confirmed using a model of hydrophobic drug -ketoprofen- entrapped into the nanogels particles, along with the study of the release profile, carried out in function of the nature of the monomers, density of polymer chains, and different formulation parameters.
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Affiliation(s)
- Shukai Ding
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR 22, F-67000 Strasbourg, France; Shaanxi University of Science & Technology, Institute of Atomic and Molecular Science, CN-710021 Xi'an, Shaanxi, China
| | - Bilal Mustafa
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR 22, F-67000 Strasbourg, France; Université de Strasbourg, CNRS, CAMB UMR 7199, F-67000 Strasbourg, France; Faculty of Pharmacy, University of Sindh, Jamshoro, Sindh, Pakistan
| | - Nicolas Anton
- Université de Strasbourg, CNRS, CAMB UMR 7199, F-67000 Strasbourg, France.
| | - Christophe A Serra
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR 22, F-67000 Strasbourg, France.
| | - Delphine Chan-Seng
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR 22, F-67000 Strasbourg, France
| | - Thierry F Vandamme
- Université de Strasbourg, CNRS, CAMB UMR 7199, F-67000 Strasbourg, France.
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