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Villapiano F, Silvestri T, Lo Gatto C, Aleo D, Campani V, Graziano SF, Giancola C, D'Aria F, De Rosa G, Biondi M, Mayol L. Thermosensitive In Situ Gelling Poloxamers/Hyaluronic Acid Gels for Hydrocortisone Ocular Delivery. Gels 2024; 10:193. [PMID: 38534611 DOI: 10.3390/gels10030193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 03/06/2024] [Accepted: 03/09/2024] [Indexed: 03/28/2024] Open
Abstract
This study endeavored to overcome the physiological barriers hindering optimal bioavailability in ophthalmic therapeutics by devising drug delivery platforms that allow therapeutically effective drug concentrations in ocular tissues for prolonged times. Thermosensitive drug delivery platforms were formulated by blending poloxamers (F68 and F127) with low-molecular-weight hyaluronic acid (HA) in various concentrations and loaded with hydrocortisone (HC). Among the formulations examined, only three were deemed suitable based on their desirable gelling properties at a temperature close to the eye's surface conditions while also ensuring minimal gelation time for swift ocular application. Rheological analyses unveiled the ability of the formulations to develop gels at suitable temperatures, elucidating the gel-like characteristics around the physiological temperature essential for sustained drug release. The differential scanning calorimetry findings elucidated intricate hydrogel-water interactions, indicating that HA affects the water-polymer interactions within the gel by increasing the platform hydrophilicity. Also, in vitro drug release studies demonstrated significant hydrocortisone release within 8 h, governed by an anomalous transport mechanism, prompting further investigation for optimized release kinetics. The produced platforms offer promising prospects for efficacious ocular drug delivery, addressing pivotal challenges in ocular therapeutics and heralding future advancements in the domain.
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Affiliation(s)
- Fabrizio Villapiano
- Department of Pharmacy, University of Naples Federico II, D. Montesano St. 49, 80131 Naples, Italy
| | - Teresa Silvestri
- Department of Pharmacy, University of Naples Federico II, D. Montesano St. 49, 80131 Naples, Italy
| | - Camilla Lo Gatto
- Department of Pharmacy, University of Naples Federico II, D. Montesano St. 49, 80131 Naples, Italy
| | - Danilo Aleo
- Medivis Srl, Carnazza St. 34/C, 95030 Tremestieri Etneo, Catania, Italy
| | - Virginia Campani
- Department of Pharmacy, University of Naples Federico II, D. Montesano St. 49, 80131 Naples, Italy
| | - Sossio Fabio Graziano
- Department of Pharmacy, University of Naples Federico II, D. Montesano St. 49, 80131 Naples, Italy
| | - Concetta Giancola
- Department of Pharmacy, University of Naples Federico II, D. Montesano St. 49, 80131 Naples, Italy
| | - Federica D'Aria
- Department of Pharmacy, University of Naples Federico II, D. Montesano St. 49, 80131 Naples, Italy
| | - Giuseppe De Rosa
- Department of Pharmacy, University of Naples Federico II, D. Montesano St. 49, 80131 Naples, Italy
| | - Marco Biondi
- Department of Pharmacy, University of Naples Federico II, D. Montesano St. 49, 80131 Naples, Italy
- Interdisciplinary Research Centre on Biomaterials (CRIB), Piazzale Tecchio 80, 80125 Naples, Italy
| | - Laura Mayol
- Interdisciplinary Research Centre on Biomaterials (CRIB), Piazzale Tecchio 80, 80125 Naples, Italy
- Department of Advanced Biomedical Sciences, University of Naples Federico II, S. Pansini St. 5, 80131 Naples, Italy
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Silvestri T, Grumetto L, Neri I, De Falco M, Graziano SF, Damiano S, Giaquinto D, Maruccio L, de Girolamo P, Villapiano F, Ciarcia R, Mayol L, Biondi M. Investigating the Effect of Surface Hydrophilicity on the Destiny of PLGA-Poloxamer Nanoparticles in an In Vivo Animal Model. Int J Mol Sci 2023; 24:14523. [PMID: 37833971 PMCID: PMC10572154 DOI: 10.3390/ijms241914523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/17/2023] [Accepted: 09/17/2023] [Indexed: 10/15/2023] Open
Abstract
This study aimed to examine the impact of different surface properties of poly(lactic-co-glycolic) acid (PLGA) nanoparticles (P NPs) and PLGA-Poloxamer nanoparticles (PP NPs) on their in vivo biodistribution. For this purpose, NPs were formulated via nanoprecipitation and loaded with diphenylhexatriene (DPH), a fluorescent dye. The obtained NPs underwent comprehensive characterization, encompassing their morphology, technological attributes, DPH release rate, and thermodynamic properties. The produced NPs were then administered to wild-type mice via intraperitoneal injection, and, at scheduled time intervals, the animals were euthanized. Blood samples, as well as the liver, lungs, and kidneys, were extracted for histological examination and biodistribution analysis. The findings of this investigation revealed that the presence of poloxamers led to smaller NP sizes and induced partial crystallinity in the NPs. The biodistribution and histological results from in vivo experiments evidenced that both, P and PP NPs, exhibited comparable concentrations in the bloodstream, while P NPs could not be detected in the other organs examined. Conversely, PP NPs were primarily sequestered by the lungs and, to a lesser extent, by the kidneys. Future research endeavors will focus on investigating the behavior of drug-loaded NPs in pathological animal models.
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Affiliation(s)
- Teresa Silvestri
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro, Via E. Orabona 4, 70125 Bari, Italy;
| | - Lucia Grumetto
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano 49, 80131 Naples, Italy; (L.G.); (I.N.); (M.B.)
- National Institute of Biostructures and Biosystems (INBB), Viale delle Medaglie d’Oro 305, 00136 Rome, Italy
| | - Ilaria Neri
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano 49, 80131 Naples, Italy; (L.G.); (I.N.); (M.B.)
- National Institute of Biostructures and Biosystems (INBB), Viale delle Medaglie d’Oro 305, 00136 Rome, Italy
| | - Maria De Falco
- National Institute of Biostructures and Biosystems (INBB), Viale delle Medaglie d’Oro 305, 00136 Rome, Italy
- Department of Biology, University Federico II of Naples, Via Cinthia 26, 80125 Naples, Italy;
| | - Sossio Fabio Graziano
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano 49, 80131 Naples, Italy; (L.G.); (I.N.); (M.B.)
| | - Sara Damiano
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, Via Federico Delpino 1, 80137 Naples, Italy (D.G.); (L.M.)
| | - Daniela Giaquinto
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, Via Federico Delpino 1, 80137 Naples, Italy (D.G.); (L.M.)
| | - Lucianna Maruccio
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, Via Federico Delpino 1, 80137 Naples, Italy (D.G.); (L.M.)
| | - Paolo de Girolamo
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, Via Federico Delpino 1, 80137 Naples, Italy (D.G.); (L.M.)
| | - Fabrizio Villapiano
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano 49, 80131 Naples, Italy; (L.G.); (I.N.); (M.B.)
| | - Roberto Ciarcia
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, Via Federico Delpino 1, 80137 Naples, Italy (D.G.); (L.M.)
| | - Laura Mayol
- Department of Advanced Biomedical Sciences, University of Naples Federico II, Via D. Montesano 49, 80131 Naples, Italy
- Interdisciplinary Research Centre on Biomaterials (CRIB), Piazzale Tecchio 80, 80125 Naples, Italy
| | - Marco Biondi
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano 49, 80131 Naples, Italy; (L.G.); (I.N.); (M.B.)
- Interdisciplinary Research Centre on Biomaterials (CRIB), Piazzale Tecchio 80, 80125 Naples, Italy
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Abate M, Lombardi A, Luce A, Porru M, Leonetti C, Bocchetti M, Campani V, De Rosa G, Graziano SF, Nele V, Cardile F, Marino FZ, Franco R, Ronchi A, Scrima M, Sperlongano R, Alfano R, Misso G, Amler E, Caraglia M, Zappavigna S. Fluorescent nanodiamonds as innovative delivery systems for MiR-34a replacement in breast cancer. Mol Ther Nucleic Acids 2023; 33:127-141. [PMID: 37449042 PMCID: PMC10336355 DOI: 10.1016/j.omtn.2023.06.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 06/14/2023] [Indexed: 07/18/2023]
Abstract
Nanodiamonds are innovative nanocrystalline carbon particles able to deliver chemically conjugated miRNAs. In oncology, the use of miRNA-based therapies may represent an advantage, based on their ability to simultaneously target multiple intracellular oncogenic targets. Here, nanodiamonds were tested and optimized to deliver miR-34a, a miRNA playing a key role in inhibiting tumor development and progression in many cancers. The physical-chemical properties of nanodiamonds were investigated suggesting electrical stability and uniformity of structure and size. Moreover, we evaluated nanodiamond cytotoxicity on two breast cancer cell models and confirmed their excellent biocompatibility. Subsequently, nanodiamonds were conjugated with miR-34a, using the chemical crosslinker polyethyleneimine; real-time PCR analysis revealed a higher level of miR-34a in cancer cells treated with the different formulations of nanodiamonds than with commercial transfectant. A significant and early nanodiamond-miR-34a uptake was recorded by FACS and fluorescence microscopy analysis in MCF7 and MDA-MB-231 cells. Moreover, nanodiamond-miR-34a significantly inhibited both cell proliferation and migration. Finally, a remarkable anti-tumor effect of miR-34a-conjugated nanodiamonds was observed in both heterotopic and orthotopic murine xenograft models. In conclusion, this study provides a rationale for the development of new therapeutic strategies based on use of miR-34a delivered by nanodiamonds to improve the clinical treatment of neoplasms.
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Affiliation(s)
- Marianna Abate
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli,” Via L. De Crecchio 7, 80138 Naples, Italy
- Institute of Biophysics, 2nd Faculty of Medicine, Charles University, V Uvalu 84, 15006 Prague, Czech Republic
| | - Angela Lombardi
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli,” Via L. De Crecchio 7, 80138 Naples, Italy
| | - Amalia Luce
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli,” Via L. De Crecchio 7, 80138 Naples, Italy
| | - Manuela Porru
- Translational Oncology Research Unit, IRCCS Regina Elena National Cancer Institute, E Chianesi 53, 00144 Rome, Italy
| | - Carlo Leonetti
- Translational Oncology Research Unit, IRCCS Regina Elena National Cancer Institute, E Chianesi 53, 00144 Rome, Italy
| | - Marco Bocchetti
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli,” Via L. De Crecchio 7, 80138 Naples, Italy
- Laboratory of Precision and Molecular Oncology, Biogem Scarl, Institute of Genetic Research, Contrada Camporeale, 83031 Ariano Irpino, Italy
| | - Virginia Campani
- Department of Pharmacy, University of Naples Federico II, D. Montesano 49, 80131 Naples, Italy
| | - Giuseppe De Rosa
- Department of Pharmacy, University of Naples Federico II, D. Montesano 49, 80131 Naples, Italy
| | - Sossio Fabio Graziano
- Department of Pharmacy, University of Naples Federico II, D. Montesano 49, 80131 Naples, Italy
| | - Valeria Nele
- Department of Pharmacy, University of Naples Federico II, D. Montesano 49, 80131 Naples, Italy
| | - Francesco Cardile
- Laboratory of Precision and Molecular Oncology, Biogem Scarl, Institute of Genetic Research, Contrada Camporeale, 83031 Ariano Irpino, Italy
| | - Federica Zito Marino
- Department of Mental and Physical Health and Preventive Medicine, Pathology Unit, University of Campania “Luigi Vanvitelli,” 80138 Naples, Italy
| | - Renato Franco
- Department of Mental and Physical Health and Preventive Medicine, Pathology Unit, University of Campania “Luigi Vanvitelli,” 80138 Naples, Italy
| | - Andrea Ronchi
- Department of Mental and Physical Health and Preventive Medicine, Pathology Unit, University of Campania “Luigi Vanvitelli,” 80138 Naples, Italy
| | - Marianna Scrima
- Laboratory of Precision and Molecular Oncology, Biogem Scarl, Institute of Genetic Research, Contrada Camporeale, 83031 Ariano Irpino, Italy
| | - Rossella Sperlongano
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli,” Via L. De Crecchio 7, 80138 Naples, Italy
| | - Roberto Alfano
- Department of Advanced Medical and Surgical Sciences “DAMSS,” University of Campania “Luigi Vanvitelli,” Via S. M. di Costantinopoli 104, 80138 Naples, Italy
| | - Gabriella Misso
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli,” Via L. De Crecchio 7, 80138 Naples, Italy
| | - Evzen Amler
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli,” Via L. De Crecchio 7, 80138 Naples, Italy
- Institute of Biophysics, 2nd Faculty of Medicine, Charles University, V Uvalu 84, 15006 Prague, Czech Republic
| | - Michele Caraglia
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli,” Via L. De Crecchio 7, 80138 Naples, Italy
- Laboratory of Precision and Molecular Oncology, Biogem Scarl, Institute of Genetic Research, Contrada Camporeale, 83031 Ariano Irpino, Italy
| | - Silvia Zappavigna
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli,” Via L. De Crecchio 7, 80138 Naples, Italy
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De'Gennaro R, Graziano SF, Cappelletti P, Colella A, Dondi M, Langella A, De'Gennaro M. Structural concretes with waste-based lightweight aggregates: from landfill to engineered materials. Environ Sci Technol 2009; 43:7123-7129. [PMID: 19806752 DOI: 10.1021/es9012257] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
This research provides possible opportunities in the reuse of waste and particularly muds, coming from both ornamental stone (granite sludges from sawing and polishing operations) and ceramic production (porcelain stoneware tile polishing sludge), for the manufacture of lightweight aggregates. Lab simulation of the manufacturing cycle was performed by pelletizing and firing the waste mixes in a rotative furnace up to 1300 degrees C, and determining composition and physicomechanical properties of lightweight aggregates. The best formulation was used to produce and test lightweight structural concretes according to standard procedures. Both granite and porcelain stoneware polishing sludges exhibit a suitable firing behavior due to the occurrence of SiC (an abrasive component) which, by decomposing at high temperature with gas release, acts as a bloating promoter, resulting in aggregates with particle density < 1 Mg/m3. However, slight variations of mixture composition produce aggregates with rather different properties, going from values close to those of typical commercial expanded clays (particle density 0.68 Mg/m3; strength of particle 1.2 MPa) to products with high mechanical features (particle density 1.25 Mg/m3; strength of particle 6.9 MPa). The best formulation (50 wt.% porcelain stoneware polishing sludge +50 wt.% granite sawing sludge) was used to successfully manufacture lightweight structural concretes with suitable properties (compressive strength 28 days > 20 MPa, bulk density 1.4-2.0 Mg/m3).
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Affiliation(s)
- Roberto De'Gennaro
- Centro Interdipartimentale di Servizio per Analisi Geomineralogiche, Federico II University, Via Mezzocannone 8, 80134 Naples, Italy.
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