1
|
Falanga AP, Massaro M, Borbone N, Notarbartolo M, Piccialli G, Liotta LF, Sanchez-Espejo R, Viseras Iborra C, Raymo FM, Oliviero G, Riela S. Carrier capability of halloysite nanotubes for the intracellular delivery of antisense PNA targeting mRNA of neuroglobin gene. J Colloid Interface Sci 2024; 663:9-20. [PMID: 38387188 DOI: 10.1016/j.jcis.2024.02.136] [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: 10/23/2023] [Revised: 12/28/2023] [Accepted: 02/17/2024] [Indexed: 02/24/2024]
Abstract
Peptide nucleic acid (PNA) is a DNA mimic that shows good stability against nucleases and proteases, forming strongly recognized complementary strands of DNA and RNA. However, due to its feeble ability to cross the cellular membrane, PNA activity and its targeting gene action is limited. Halloysite nanotubes (HNTs) are a natural and low-cost aluminosilicate clay. Because of their peculiar ability to cross cellular membrane, HNTs represent a valuable candidate for delivering genetic materials into cells. Herein, two differently charged 12-mer PNAs capable of recognizing as molecular target a 12-mer DNA molecule mimicking a purine-rich tract of neuroglobin were synthetized and loaded onto HNTs by electrostatic attraction interactions. After characterization, the kinetic release was also assessed in media mimicking physiological conditions. Resonance light scattering measurements assessed their ability to bind complementary single-stranded DNA. Furthermore, their intracellular delivery was assessed by confocal laser scanning microscopy on living MCF-7 cells incubated with fluorescence isothiocyanate (FITC)-PNA and HNTs labeled with a probe. The nanomaterials were found to cross cellular membrane and cell nuclei efficiently. Finally, it is worth mentioning that the HNTs/PNA can reduce the level of neuroglobin gene expression, as shown by reverse transcription-quantitative polymerase chain reaction and western blotting analysis.
Collapse
Affiliation(s)
- Andrea P Falanga
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via Domenico Montesano 49, 80131 Napoli, Italy
| | - Marina Massaro
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, Viale delle Scienze, 90128 Palermo, Italy
| | - Nicola Borbone
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via Domenico Montesano 49, 80131 Napoli, Italy.
| | - Monica Notarbartolo
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, Viale delle Scienze, 90128 Palermo, Italy
| | - Gennaro Piccialli
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via Domenico Montesano 49, 80131 Napoli, Italy
| | - Leonarda F Liotta
- Istituto per lo Studio dei Materiali Nanostrutturati (ISMN)-CNR, Via Ugo La Malfa 153, Palermo 90146, Italy
| | - Rita Sanchez-Espejo
- University of Granada, Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, 18071 Granada, Spain
| | - Cesar Viseras Iborra
- University of Granada, Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, 18071 Granada, Spain; Andalusian Institute of Earth Sciences, CSIC-UGR, 18100 Armilla, Granada, Spain
| | - Françisco M Raymo
- Laboratory for Molecular Photonics, Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables 33146-0431, FL, United States
| | - Giorgia Oliviero
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Via Sergio Pansini 5, 80131 Napoli, Italy
| | - Serena Riela
- Dipartimento di Scienze Chimiche, Viale Andrea Doria 6, 95125 Catania, Italy.
| |
Collapse
|
2
|
Falanga AP, Lupia A, Tripodi L, Morgillo CM, Moraca F, Roviello GN, Catalanotti B, Amato J, Pastore L, Cerullo V, D'Errico S, Piccialli G, Oliviero G, Borbone N. Exploring the DNA 2-PNA heterotriplex formation in targeting the Bcl-2 gene promoter: A structural insight by physico-chemical and microsecond-scale MD investigation. Heliyon 2024; 10:e24599. [PMID: 38317891 PMCID: PMC10839560 DOI: 10.1016/j.heliyon.2024.e24599] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 01/04/2024] [Accepted: 01/10/2024] [Indexed: 02/07/2024] Open
Abstract
Peptide Nucleic Acids (PNAs) represent a promising tool for gene modulation in anticancer treatment. The uncharged peptidyl backbone and the resistance to chemical and enzymatic degradation make PNAs highly advantageous to form stable hybrid complexes with complementary DNA and RNA strands, providing higher stability than the corresponding natural analogues. Our and other groups' research has successfully shown that tailored PNA sequences can effectively downregulate the expression of human oncogenes using antigene, antisense, or anti-miRNA approaches. Specifically, we identified a seven bases-long PNA sequence, complementary to the longer loop of the main G-quadruplex structure formed by the bcl2midG4 promoter sequence, capable of downregulating the expression of the antiapoptotic Bcl-2 protein and enhancing the anticancer activity of an oncolytic adenovirus. Here, we extended the length of the PNA probe with the aim of including the double-stranded Bcl-2 promoter among the targets of the PNA probe. Our investigation primarily focused on the structural aspects of the resulting DNA2-PNA heterotriplex that were determined by employing conventional and accelerated microsecond-scale molecular dynamics simulations and chemical-physical analysis. Additionally, we conducted preliminary biological experiments using cytotoxicity assays on human A549 and MDA-MB-436 adenocarcinoma cell lines, employing the oncolytic adenovirus delivery strategy.
Collapse
Affiliation(s)
- Andrea P. Falanga
- Dipartimento di Farmacia, Università Degli Studi di Napoli Federico II, Naples, 80131, Italy
| | - Antonio Lupia
- Dipartimento di Farmacia, Università Degli Studi di Napoli Federico II, Naples, 80131, Italy
| | - Lorella Tripodi
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università Degli Studi di Napoli Federico II, Naples, 80131, Italy
- CEINGE-Biotecnologie Avanzate Franco Salvatore S.c.a.r.l., Naples, 80145, Italy
| | - Carmine M. Morgillo
- Dipartimento di Farmacia, Università Degli Studi di Napoli Federico II, Naples, 80131, Italy
| | - Federica Moraca
- Dipartimento di Farmacia, Università Degli Studi di Napoli Federico II, Naples, 80131, Italy
| | - Giovanni N. Roviello
- Istituto di Biostrutture e Bioimmagini, Consiglio Nazionale Delle Ricerche, Naples, 80131, Italy
| | - Bruno Catalanotti
- Dipartimento di Farmacia, Università Degli Studi di Napoli Federico II, Naples, 80131, Italy
| | - Jussara Amato
- Dipartimento di Farmacia, Università Degli Studi di Napoli Federico II, Naples, 80131, Italy
| | - Lucio Pastore
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università Degli Studi di Napoli Federico II, Naples, 80131, Italy
- CEINGE-Biotecnologie Avanzate Franco Salvatore S.c.a.r.l., Naples, 80145, Italy
| | - Vincenzo Cerullo
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università Degli Studi di Napoli Federico II, Naples, 80131, Italy
- ImmunoViroTherapy Lab (IVT), Drug Research Program (DRP), Faculty of Pharmacy, University of Helsinki, 00100, Helsinki, Finland
| | - Stefano D'Errico
- Dipartimento di Farmacia, Università Degli Studi di Napoli Federico II, Naples, 80131, Italy
| | - Gennaro Piccialli
- Dipartimento di Farmacia, Università Degli Studi di Napoli Federico II, Naples, 80131, Italy
| | - Giorgia Oliviero
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università Degli Studi di Napoli Federico II, Naples, 80131, Italy
| | - Nicola Borbone
- Dipartimento di Farmacia, Università Degli Studi di Napoli Federico II, Naples, 80131, Italy
| |
Collapse
|
3
|
Falanga AP, Terracciano M, Oliviero G, Roviello GN, Borbone N. Exploring the Relationship between G-Quadruplex Nucleic Acids and Plants: From Plant G-Quadruplex Function to Phytochemical G4 Ligands with Pharmaceutic Potential. Pharmaceutics 2022; 14:2377. [PMID: 36365194 PMCID: PMC9698481 DOI: 10.3390/pharmaceutics14112377] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [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: 10/10/2022] [Revised: 10/19/2022] [Accepted: 11/01/2022] [Indexed: 10/31/2023] Open
Abstract
G-quadruplex (G4) oligonucleotides are higher-order DNA and RNA secondary structures of enormous relevance due to their implication in several biological processes and pathological states in different organisms. Strategies aiming at modulating human G4 structures and their interrelated functions are first-line approaches in modern research aiming at finding new potential anticancer treatments or G4-based aptamers for various biomedical and biotechnological applications. Plants offer a cornucopia of phytocompounds that, in many cases, are effective in binding and modulating the thermal stability of G4s and, on the other hand, contain almost unexplored G4 motifs in their genome that could inspire new biotechnological strategies. Herein, we describe some G4 structures found in plants, summarizing the existing knowledge of their functions and biological role. Moreover, we review some of the most promising G4 ligands isolated from vegetal sources and report on the known relationships between such phytochemicals and G4-mediated biological processes that make them potential leads in the pharmaceutical sector.
Collapse
Affiliation(s)
- Andrea P. Falanga
- Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131 Naples, Italy
| | - Monica Terracciano
- Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131 Naples, Italy
| | - Giorgia Oliviero
- Department of Molecular Medicine and Medical Biotechnologies, Via Sergio Pansini 5, 80131 Naples, Italy
| | - Giovanni N. Roviello
- Institute of Biostructures and Bioimaging, Italian National Council for Research (IBB-CNR), Area di Ricerca site and Headquarters, Via Pietro Castellino 111, 80131 Naples, Italy
| | - Nicola Borbone
- Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131 Naples, Italy
- Institute of Applied Sciences and Intelligent Systems, Italian National Council of Research (ISASI-CNR), Via Pietro Castellino 111, 80131 Napoli, Italy
| |
Collapse
|
4
|
Gangemi CMA, Alaimo S, Pulvirenti A, García-Viñuales S, Milardi D, Falanga AP, Fragalà ME, Oliviero G, Piccialli G, Borbone N, Ferro A, D'Urso A, Croce CM, Purrello R. Endogenous and artificial miRNAs explore a rich variety of conformations: a potential relationship between secondary structure and biological functionality. Sci Rep 2020; 10:453. [PMID: 31949213 PMCID: PMC6965629 DOI: 10.1038/s41598-019-57289-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 12/23/2019] [Indexed: 12/22/2022] Open
Abstract
Mature microRNAs are short non-coding RNA sequences which upon incorporation into the RISC ribonucleoprotein complex, play a crucial role in regulation of gene expression. However, miRNAs can exist within the cell also as free molecules fulfilling their biological activity. Therefore, it is emerging that in addition to sequence even the structure adopted by mature miRNAs might play an important role to reach the target. Indeed, we analysed by several spectroscopic techniques the secondary structures of two artificial miRNAs selected by computational tool (miR-Synth) as best candidates to silence c-MET and EGFR genes and of two endogenous miRNAs (miR-15a and miR-15b) having the same seed region, but different biological activity. Our results demonstrate that both endogenous and artificial miRNAs can arrange in several 3D-structures which affect their activity and selectivity toward the targets.
Collapse
Affiliation(s)
- C M A Gangemi
- Department of Chemical Science, University of Catania, Viale A. Doria 6, 95125, Catania, Italy
| | - S Alaimo
- Bioinformatics Unit, Department of Clinical and Experimental Medicine, University of Catania, Italy c/o Department of Mathematics and Computer Science, Viale A. Doria 6, 95125, Catania, Italy
| | - A Pulvirenti
- Bioinformatics Unit, Department of Clinical and Experimental Medicine, University of Catania, Italy c/o Department of Mathematics and Computer Science, Viale A. Doria 6, 95125, Catania, Italy
| | | | - D Milardi
- Istituto di Cristallografia CNR, Via P. Gaifami 9, 95126, Catania, Italy
| | - A P Falanga
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples Federico II, Via Pansini 5, 80131, Napoli, Italy
| | - M E Fragalà
- Department of Chemical Science, University of Catania, Viale A. Doria 6, 95125, Catania, Italy
| | - G Oliviero
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples Federico II, Via Pansini 5, 80131, Napoli, Italy
| | - G Piccialli
- Department of Pharmacy, University of Naples Federico II, D. Montesano 49, 80131, Napoli, Italy
| | - N Borbone
- Department of Pharmacy, University of Naples Federico II, D. Montesano 49, 80131, Napoli, Italy
| | - A Ferro
- Bioinformatics Unit, Department of Clinical and Experimental Medicine, University of Catania, Italy c/o Department of Mathematics and Computer Science, Viale A. Doria 6, 95125, Catania, Italy.
| | - A D'Urso
- Department of Chemical Science, University of Catania, Viale A. Doria 6, 95125, Catania, Italy.
| | - C M Croce
- Department of Molecular Virology, Immunology and Medical Genetics, Comprehensive Cancer Center, The Ohio State University, Columbus, OH, 43210, USA
| | - R Purrello
- Department of Chemical Science, University of Catania, Viale A. Doria 6, 95125, Catania, Italy.
| |
Collapse
|
5
|
Marzano M, Falanga AP, Dardano P, D'Errico S, Rea I, Terracciano M, De Stefano L, Piccialli G, Borbone N, Oliviero G. π–π stacked DNA G-wire nanostructures formed by a short G-rich oligonucleotide containing a 3′–3′ inversion of polarity site. Org Chem Front 2020. [DOI: 10.1039/d0qo00561d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Rod-shaped G-wire assemblies potentially useful to obtain new hybrid and conducting materials were obtained by annealing short G-rich oligonucleotides incorporating a 3′–3′ inversion of polarity site in the presence of potassium or ammonium ions.
Collapse
Affiliation(s)
- Maria Marzano
- Department of Pharmacy
- University of Naples Federico II
- 80131 – Naples
- Italy
| | - Andrea P. Falanga
- Department of Pharmacy
- University of Naples Federico II
- 80131 – Naples
- Italy
| | - Principia Dardano
- Institute of Applied Sciences and Intelligent Systems
- National Council Research of Italy
- 80131 – Naples
- Italy
| | | | - Ilaria Rea
- Institute of Applied Sciences and Intelligent Systems
- National Council Research of Italy
- 80131 – Naples
- Italy
| | - Monica Terracciano
- Department of Pharmacy
- University of Naples Federico II
- 80131 – Naples
- Italy
| | - Luca De Stefano
- Institute of Applied Sciences and Intelligent Systems
- National Council Research of Italy
- 80131 – Naples
- Italy
| | - Gennaro Piccialli
- Department of Pharmacy
- University of Naples Federico II
- 80131 – Naples
- Italy
| | - Nicola Borbone
- Department of Pharmacy
- University of Naples Federico II
- 80131 – Naples
- Italy
| | - Giorgia Oliviero
- Department of Molecular Medicine and Medical Biotechnologies
- University of Naples Federico II
- 80131 – Naples
- Italy
| |
Collapse
|
6
|
Nici F, Oliviero G, Falanga AP, D'Errico S, Marzano M, Musumeci D, Montesarchio D, Noppen S, Pannecouque C, Piccialli G, Borbone N. Anti-HIV activity of new higher order G-quadruplex aptamers obtained from tetra-end-linked oligonucleotides. Org Biomol Chem 2019. [PMID: 29543291 DOI: 10.1039/c7ob02346d] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
By combining the ability of short G-rich oligodeoxyribonucleotides (ODNs) containing the sequence 5'CGGA3' to form higher order G-quadruplex (G4) complexes with the tetra-end-linked (TEL) concept to produce aptamers targeting the HIV envelope glycoprotein 120 (gp120), three new TEL-ODNs (1-3) having the sequence 5'CGGAGG3' were synthesized with the aim of studying the effect of G4 dimerization on their anti-HIV activity. Furthermore, in order to investigate the effect of the groups at the 5' position, the 5' ends of 1-3 were left uncapped (1) or capped with either the lipophilic dimethoxytrityl (DMT) (2) or the hydrophilic glucosyl-4-phosphate (3) moieties. The here reported results demonstrate that only the DMT-substituted TEL-ODN 2 is effective in protecting human MT-4 cell cultures from HIV infection (76% max protection), notwithstanding all the three new aptamers proved to be capable of forming stable higher order dimeric G4s when annealed in K+-containing buffer, thus suggesting that the recognition of a hydrophobic pocket on the target glycoprotein by the aptamers represents a main structural feature for triggering their anti-HIV activity.
Collapse
Affiliation(s)
- F Nici
- Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131, Napoli, Italy.
| | - G Oliviero
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples Federico II, Napoli, Italy
| | - A P Falanga
- Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131, Napoli, Italy.
| | - S D'Errico
- Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131, Napoli, Italy.
| | - M Marzano
- Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131, Napoli, Italy.
| | - D Musumeci
- Department of Chemical Sciences, University of Naples Federico II, Napoli, Italy
| | - D Montesarchio
- Department of Chemical Sciences, University of Naples Federico II, Napoli, Italy
| | - S Noppen
- KU Leuven, Department of Microbiology and Immunology, Laboratory of Virology and Chemotherapy, Rega Institute for Medical Research, Herestraat 49, B-3000 Leuven, Belgium
| | - C Pannecouque
- KU Leuven, Department of Microbiology and Immunology, Laboratory of Virology and Chemotherapy, Rega Institute for Medical Research, Herestraat 49, B-3000 Leuven, Belgium
| | - G Piccialli
- Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131, Napoli, Italy.
| | - N Borbone
- Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131, Napoli, Italy.
| |
Collapse
|
7
|
Falanga AP, Pitingolo G, Celentano M, Cosentino A, Melone P, Vecchione R, Guarnieri D, Netti PA. Shuttle-mediated nanoparticle transport across an in vitro brain endothelium under flow conditions. Biotechnol Bioeng 2016; 114:1087-1095. [DOI: 10.1002/bit.26221] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 10/26/2016] [Accepted: 11/06/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Andrea P. Falanga
- Center for Advanced Biomaterial for Health Care (CABHC); Istituto Italiano di Tecnologia; Largo Barsanti e Matteucci 53 Napoli Italy
| | - Gabriele Pitingolo
- Center for Advanced Biomaterial for Health Care (CABHC); Istituto Italiano di Tecnologia; Largo Barsanti e Matteucci 53 Napoli Italy
| | - Maurizio Celentano
- Center for Advanced Biomaterial for Health Care (CABHC); Istituto Italiano di Tecnologia; Largo Barsanti e Matteucci 53 Napoli Italy
| | - Armando Cosentino
- Center for Advanced Biomaterial for Health Care (CABHC); Istituto Italiano di Tecnologia; Largo Barsanti e Matteucci 53 Napoli Italy
| | - Pietro Melone
- Center for Advanced Biomaterial for Health Care (CABHC); Istituto Italiano di Tecnologia; Largo Barsanti e Matteucci 53 Napoli Italy
| | - Raffaele Vecchione
- Center for Advanced Biomaterial for Health Care (CABHC); Istituto Italiano di Tecnologia; Largo Barsanti e Matteucci 53 Napoli Italy
| | - Daniela Guarnieri
- Center for Advanced Biomaterial for Health Care (CABHC); Istituto Italiano di Tecnologia; Largo Barsanti e Matteucci 53 Napoli Italy
| | - Paolo A. Netti
- Center for Advanced Biomaterial for Health Care (CABHC); Istituto Italiano di Tecnologia; Largo Barsanti e Matteucci 53 Napoli Italy
- Centro di Ricerca Interdipartimentale sui Biomateriali (CRIB); Università di Napoli Federico II; Napoli Italy
- Dipartimento di Ingegneria; Università di Napoli Federico II; Napoli Italy
| |
Collapse
|
8
|
Vecchione R, Pitingolo G, Falanga AP, Guarnieri D, Netti PA. Confined Gelatin Dehydration as a Viable Route To Go Beyond Micromilling Resolution and Miniaturize Biological Assays. ACS Appl Mater Interfaces 2016; 8:12075-12081. [PMID: 27140285 DOI: 10.1021/acsami.6b04128] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Nowadays, microfluidic channels of a few tens of micrometers are required and widely used in many fields, especially for surface-processing applications and miniaturization of biological assays. Herein, we selected micromilling as a low-cost technology and proposed an approach capable of overcoming its limitations; in fact, microstructures below 20-30 μm in depth are difficult to obtain, and the manufacturing error is rather high, as it is inversely proportional to the depth. Indeed, the proposed method uses a confined dehydration process of a patterned gelatin substrate fabricated via replica molding onto a micromilled poly(methyl methacrylate) substrate to produce a gelatin master with demonstrated final micrometric features down to 3 μm for the channel depth and, in specific configurations, down to 5 μm for the channel width. Finally, we demonstrated the ability to flux liquids in miniaturized microfluidic devices and fabricated and tested-as an example-micrometric microstructures arrays connected via microchannels for biological assays.
Collapse
Affiliation(s)
- Raffaele Vecchione
- Center for Advanced Biomaterials for Healthcare, Istituto Italiano di Tecnologia (IIT@CRIB) , Largo Barsanti e Matteucci, 53, Naples 80125, Italy
- Interdisciplinary Research Center on Biomaterials (CRIB), University of Naples Federico II , Naples 80125, Italy
| | - Gabriele Pitingolo
- Center for Advanced Biomaterials for Healthcare, Istituto Italiano di Tecnologia (IIT@CRIB) , Largo Barsanti e Matteucci, 53, Naples 80125, Italy
- Interdisciplinary Research Center on Biomaterials (CRIB), University of Naples Federico II , Naples 80125, Italy
| | - Andrea P Falanga
- Center for Advanced Biomaterials for Healthcare, Istituto Italiano di Tecnologia (IIT@CRIB) , Largo Barsanti e Matteucci, 53, Naples 80125, Italy
- Interdisciplinary Research Center on Biomaterials (CRIB), University of Naples Federico II , Naples 80125, Italy
| | - Daniela Guarnieri
- Center for Advanced Biomaterials for Healthcare, Istituto Italiano di Tecnologia (IIT@CRIB) , Largo Barsanti e Matteucci, 53, Naples 80125, Italy
- Interdisciplinary Research Center on Biomaterials (CRIB), University of Naples Federico II , Naples 80125, Italy
| | - Paolo A Netti
- Center for Advanced Biomaterials for Healthcare, Istituto Italiano di Tecnologia (IIT@CRIB) , Largo Barsanti e Matteucci, 53, Naples 80125, Italy
- Department of Chemical, Materials and Industrial Production Engineering, University of Naples Federico II , Naples 80125, Italy
- Interdisciplinary Research Center on Biomaterials (CRIB), University of Naples Federico II , Naples 80125, Italy
| |
Collapse
|
9
|
Vecchione R, Pitingolo G, Guarnieri D, Falanga AP, Netti PA. From square to circular polymeric microchannels by spin coating technology: a low cost platform for endothelial cell culture. Biofabrication 2016; 8:025005. [DOI: 10.1088/1758-5090/8/2/025005] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
10
|
Guarnieri D, Biondi M, Yu H, Belli V, Falanga AP, Cantisani M, Galdiero S, Netti PA. Tumor-activated prodrug (TAP)-conjugated nanoparticles with cleavable domains for safe doxorubicin delivery. Biotechnol Bioeng 2014; 112:601-11. [PMID: 25220931 DOI: 10.1002/bit.25454] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [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: 07/03/2014] [Revised: 08/13/2014] [Accepted: 09/05/2014] [Indexed: 11/08/2022]
Abstract
A major issue in chemotherapy is the lack of specificity of many antitumor drugs, which cause severe side effects and an impaired therapeutic response. Here we report on the design and characterization of model tumor activated prodrug-conjugated polystyrene (PS) nanoparticles (TAP-NPs) for the release of doxorubicin (Dox) triggered by matrix metalloprotease-2 (MMP2) enzyme, which is overexpressed in the extracellular matrix of tumors. In particular, TAP-NPs were produced by attaching Dox to poly(ethylene glycol) (PEG) through two MMP2-cleavable enzymes. The resulting adduct was then tethered to PS NPs. Results showed that Dox release was actually triggered by MMP2 cleavage and was dependent on enzyme concentration, with a plateau around 20 nM. Furthermore, significant cell cytotoxicity was observed towards three cell lines only in the presence of MMP2, but not in cells without enzyme pre-treatment, even after NP internalization by cells. These findings indicate the potential of TAP-NPs as suitable nanocarriers for an on demand, tumor--specific delivery of antitumor drugs after the response to an endogenous stimulus. Further advancements will focus on the translation of this production technology to biodegradable systems for the safe transport of cytotoxic drug to tumor tissues.
Collapse
Affiliation(s)
- Daniela Guarnieri
- Center for Advanced Biomaterials for Health Care (CABHC), Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, Napoli, Italy
| | | | | | | | | | | | | | | |
Collapse
|