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Jain M, Trapani G, Trappmann B, Ravoo BJ. Stiffness Modulation and Pulsatile Release in Dual Responsive Hydrogels. Angew Chem Int Ed Engl 2024:e202403760. [PMID: 38517945 DOI: 10.1002/anie.202403760] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 03/08/2024] [Accepted: 03/14/2024] [Indexed: 03/24/2024]
Abstract
Inspired by nature, self-regulation can be introduced in synthetic hydrogels by incorporating chemo-mechanical signals or coupled chemical reactions to maintain or adapt the material's physico-chemical properties when exposed to external triggers. In this work, we present redox and light dual stimuli responsive hydrogels capable of rapidly adapting the polymer crosslinking network while maintaining hydrogel stability. Upon irradiation with UV light, polymer hydrogels containing redox responsive disulfide crosslinks and light responsive ortho-nitrobenzyl moieties show a release of payload accompanied by adaptation of the hydrogel network towards higher stiffness due to in situ crosslinking by S-nitrosylation. Whereas the hydrogel design allows the network to either become softer in presence of reducing agent glutathione or stiffer upon UV irradiation, simultaneous application of both stimuli induces network self-regulation resulting in a pulsatile form of payload release from the hydrogel. Finally, adaptive stiffness was used to make tunable hydrogels as substrates for different cell lines.
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Affiliation(s)
- Mehak Jain
- Organic Chemistry Institute and Center for Soft Nanoscience, Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
| | - Giuseppe Trapani
- Max Planck Institute for Molecular Biomedicine, Röntgenstraße 20, 48149, Münster, Germany
| | - Britta Trappmann
- Max Planck Institute for Molecular Biomedicine, Röntgenstraße 20, 48149, Münster, Germany
- Department of Chemistry and Chemical Biology, TU Dortmund University, Otto-Hahn-Straße 6, 44227, Dortmund, Germany
| | - Bart Jan Ravoo
- Organic Chemistry Institute and Center for Soft Nanoscience, Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
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2
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Weiß MS, Trapani G, Long H, Trappmann B. Matrix Resistance Toward Proteolytic Cleavage Controls Contractility-Dependent Migration Modes During Angiogenic Sprouting. Adv Sci (Weinh) 2024:e2305947. [PMID: 38477409 DOI: 10.1002/advs.202305947] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 02/16/2024] [Indexed: 03/14/2024]
Abstract
Tissue homeostasis and disease states rely on the formation of new blood vessels through angiogenic sprouting, which is tightly regulated by the properties of the surrounding extracellular matrix. While physical cues, such as matrix stiffness or degradability, have evolved as major regulators of cell function in tissue microenvironments, it remains unknown whether and how physical cues regulate endothelial cell migration during angiogenesis. To investigate this, a biomimetic model of angiogenic sprouting inside a tunable synthetic hydrogel is created. It is shown that endothelial cells sense the resistance of the surrounding matrix toward proteolytic cleavage and respond by adjusting their migration phenotype. The resistance cells encounter is impacted by the number of covalent matrix crosslinks, crosslink degradability, and the proteolytic activity of cells. When matrix resistance is high, cells switch from a collective to an actomyosin contractility-dependent single cellular migration mode. This switch in collectivity is accompanied by a major reorganization of the actin cytoskeleton, where stress fibers are no longer visible, and F-actin aggregates in large punctate clusters. Matrix resistance is identified as a previously unknown regulator of angiogenic sprouting and, thus, provides a mechanism by which the physical properties of the matrix impact cell migration modes through cytoskeletal remodeling.
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Affiliation(s)
- Martin S Weiß
- Bioactive Materials Laboratory, Max Planck Institute for Molecular Biomedicine, Röntgenstraße 20, 48149, Münster, Germany
| | - Giuseppe Trapani
- Bioactive Materials Laboratory, Max Planck Institute for Molecular Biomedicine, Röntgenstraße 20, 48149, Münster, Germany
| | - Hongyan Long
- Bioactive Materials Laboratory, Max Planck Institute for Molecular Biomedicine, Röntgenstraße 20, 48149, Münster, Germany
| | - Britta Trappmann
- Bioactive Materials Laboratory, Max Planck Institute for Molecular Biomedicine, Röntgenstraße 20, 48149, Münster, Germany
- Department of Chemistry and Chemical Biology, TU Dortmund University, Otto-Hahn-Straße 6, 44227, Dortmund, Germany
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Di Gioia S, Fracchiolla G, Cometa S, Perna FM, Quivelli AF, Trapani G, Daniello V, Nobile C, Hossain MN, Trapani A, Conese M. Carboxymethyl chitosan dopamine conjugates: Synthesis and evaluation for intranasal anti Parkinson therapy. Int J Biol Macromol 2023; 253:127174. [PMID: 37783252 DOI: 10.1016/j.ijbiomac.2023.127174] [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: 06/13/2023] [Revised: 08/30/2023] [Accepted: 09/29/2023] [Indexed: 10/04/2023]
Abstract
With respect to the Parkinson's disease (PD), herein, we aimed at synthetizing and characterizing two novel macromolecular conjugates where dopamine (DA) was linked to N,O-carboxymethyl chitosan or O-carboxymethyl chitosan, being both conjugates obtained from an organic solvent free synthetic procedure. They were characterized by FT-IR, 1H NMR spectroscopies, whereas thermal analysis (including Differential Scanning Calorimetry and Thermal Gravimetric Analysis) revealed good stability of the two conjugates after exposure at temperatures close to 300 °C. Release studies in simulated nasal fluid elucidated that a faster release occurred since O-carboxymethyl chitosan-DA conjugate maybe due to the less steric hindrance exerted by the polymeric moiety. The CMCS-DA conjugates prepared in aqueous medium may self-assembly to form polymeric micelles and/or may form polymeric nanoparticles. TEM and Photon correlation spectroscopy lent support for polymeric nanoparticle formation. Moreover, such CMCS-DA conjugates showed antioxidant activity, as demonstrated by DPPH radical scavenging assay. Finally, cytocompatibility studies with neuroblastoma SH-SY5Y cells showed no cytotoxicity of both conjugates, whereas their uptake increased from 2.5 to 24 h and demonstrated in 40-66 % of cells.
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Affiliation(s)
- Sante Di Gioia
- Department of Clinical and Experimental Medicine, University of Foggia, 71122 Foggia, Italy
| | - Giuseppe Fracchiolla
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", Consorzio C.I.N.M.P.I.S., via E. Orabona, 4-70125 Bari, Italy
| | | | - Filippo Maria Perna
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", Consorzio C.I.N.M.P.I.S., via E. Orabona, 4-70125 Bari, Italy
| | - Andrea Francesca Quivelli
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", Consorzio C.I.N.M.P.I.S., via E. Orabona, 4-70125 Bari, Italy
| | - Giuseppe Trapani
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", Consorzio C.I.N.M.P.I.S., via E. Orabona, 4-70125 Bari, Italy
| | - Valeria Daniello
- Department of Clinical and Experimental Medicine, University of Foggia, 71122 Foggia, Italy
| | - Concetta Nobile
- CNR-NANOTEC Institute of Nanotechnology, Via Monteroni, 73100 Lecce, Italy
| | - Md Niamat Hossain
- Department of Clinical and Experimental Medicine, University of Foggia, 71122 Foggia, Italy
| | - Adriana Trapani
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", Consorzio C.I.N.M.P.I.S., via E. Orabona, 4-70125 Bari, Italy.
| | - Massimo Conese
- Department of Clinical and Experimental Medicine, University of Foggia, 71122 Foggia, Italy
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Trapani G, Weiß MS, Trappmann B. Tunable Synthetic Hydrogels to Study Angiogenic Sprouting. Curr Protoc 2023; 3:e859. [PMID: 37555756 DOI: 10.1002/cpz1.859] [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] [Indexed: 08/10/2023]
Abstract
Angiogenic sprouting, the formation of new blood vessels from pre-existing vasculature, is tightly regulated by the properties of the surrounding tissue microenvironment. Although the extracellular matrix has been shown to be a major regulator of this process, it is not clear how individual biochemical and mechanical properties influence endothelial cell sprouting. This information gap is largely due to the lack of suitable in vitro models that recapitulate angiogenic sprouting in a 3D environment with independent control over matrix properties. Here, we present protocols for the preparation of endothelial cell spheroid-laden synthetic, dextran-based hydrogels, which serve as a highly tunable 3D scaffold. The adjustment of the hydrogels' adhesiveness, stiffness, and degradability is demonstrated in detail. Finally, we describe assays to elucidate how individual matrix properties regulate angiogenic sprouting, including their analysis by immunofluorescence staining and imaging. © 2023 The Authors. Current Protocols published by Wiley Periodicals LLC. Basic Protocol 1: Synthesis of methacrylated dextran (DexMA) Basic Protocol 2: Generation of endothelial cell spheroids in microwells Basic Protocol 3: Endothelial cell sprouting in hydrogels of tunable stiffness Basic Protocol 4: Endothelial cell sprouting in hydrogels of tunable adhesiveness Basic Protocol 5: Endothelial cell sprouting in hydrogels of tunable degradability Basic Protocol 6: Imaging of endothelial cell spheroid-laden hydrogels Support Protocol 1: Preparation of pro-angiogenic cocktail for endothelial cell sprouting.
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Affiliation(s)
- Giuseppe Trapani
- Bioactive Materials Laboratory, Max Planck Institute for Molecular Biomedicine, Münster, Germany
| | - Martin Sebastian Weiß
- Bioactive Materials Laboratory, Max Planck Institute for Molecular Biomedicine, Münster, Germany
| | - Britta Trappmann
- Bioactive Materials Laboratory, Max Planck Institute for Molecular Biomedicine, Münster, Germany
- Department of Chemistry and Chemical Biology, TU Dortmund University, Dortmund, Germany
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Cuccia F, Rigo M, Figlia V, Giaj Levra N, Nicosia L, Ricchetti F, Mazzola R, Trapani G, Pastorello E, Ruggieri R, Alongi F. 1.5T MR-guided daily-adapted stereotactic body radiotherapy for prostate re-irradiation: A preliminary report of toxicity and clinical outcomes. EUR UROL SUPPL 2022. [DOI: 10.1016/s2666-1683(22)02522-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Orlando L, Trapani G, Vatrano M, Imbalzano E. P403 KOUNIS SYNDROME ASSOCIATED WITH COVID–19 INFECTION: CAUSE OR COINCIDENCE? Eur Heart J Suppl 2022. [PMCID: PMC9384081 DOI: 10.1093/eurheartj/suac012.389] [Citation(s) in RCA: 0] [Impact Index Per Article: 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] [Indexed: 11/14/2022]
Abstract
Abstract
Background
Histamine fish poisoning, known as scombroid syndrome, is a foodborne disease caused by histamine toxicity that results from eating specific types of spoiled fish. In some cases it can lead to the development of life–threatening anaphylactic reactions. In literature is widely recognized and accepted the possibility of correlated coronary involvements, cases described are rare, but even more rare if combined with the novel human coronavirus disease Covid–19 infection, the fifth documented pandemic since the 1918 flu pandemic. In this report, we describe a case of acute coronary syndrome in infected patient with Covid–19, for the first time. The occurrence of acute coronary events with allergic or hypersensitivity reactions has been described as the Kounis syndrome, but in few cases it has been associated with scombroid syndrome.
Case Report
A young woman came to our Emergency Department with erythematous lesions, mild itching, nausea, diaphoresis and weakness, after a meal with canned tuna. Her clinical situation worsened and she developed acute coronary syndrome due to vasospasm. After first negative result for rapid oropharyngeal swab test of SARS–CoV–2 RNA, waiting for molecular oropharyngeal swab during her hospitalization, a few days later she tested positive for SARS–CoV2 infection. Acute coronary syndrome in patients with scombroid syndrome is rare to find and more rare if associated with Covid–19–infection. This case demonstrated a linkage of Histamine fish poisoning with Kounis syndrome and SARS–CoV–2 infection, allowing us to foster the treatment decision–making process. Why should an emergency physician be aware of this? This syndrome can represent a life threatening, if not promptly and early known. An emergency physician must have this knowledge, to evaluate accurately the anamnesis of affected patients. Only a circumspect anamnesis can lead us to correct diagnosis and change our decision–making process for treatment.
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Affiliation(s)
- L Orlando
- AZIENDA OSPEDALIERA UNIVERSITARIA G. MARTINO, MESSINA; GRANDE OSPEDALE METROPOLITANO BIANCHI MELACRINO MORELLI, REGGIO CALABRIA; OSPEDALE PUGLIESE–CIACCIO, CATANZARO; AZIENDA OSPEDALIERA UNIVERSITARIA G.MARTINO, MESSINA
| | - G Trapani
- AZIENDA OSPEDALIERA UNIVERSITARIA G. MARTINO, MESSINA; GRANDE OSPEDALE METROPOLITANO BIANCHI MELACRINO MORELLI, REGGIO CALABRIA; OSPEDALE PUGLIESE–CIACCIO, CATANZARO; AZIENDA OSPEDALIERA UNIVERSITARIA G.MARTINO, MESSINA
| | - M Vatrano
- AZIENDA OSPEDALIERA UNIVERSITARIA G. MARTINO, MESSINA; GRANDE OSPEDALE METROPOLITANO BIANCHI MELACRINO MORELLI, REGGIO CALABRIA; OSPEDALE PUGLIESE–CIACCIO, CATANZARO; AZIENDA OSPEDALIERA UNIVERSITARIA G.MARTINO, MESSINA
| | - E Imbalzano
- AZIENDA OSPEDALIERA UNIVERSITARIA G. MARTINO, MESSINA; GRANDE OSPEDALE METROPOLITANO BIANCHI MELACRINO MORELLI, REGGIO CALABRIA; OSPEDALE PUGLIESE–CIACCIO, CATANZARO; AZIENDA OSPEDALIERA UNIVERSITARIA G.MARTINO, MESSINA
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7
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Trapani A, Cometa S, De Giglio E, Corbo F, Cassano R, Di Gioia ML, Trombino S, Hossain MN, Di Gioia S, Trapani G, Conese M. Novel Nanoparticles Based on N, O-Carboxymethyl Chitosan-Dopamine Amide Conjugate for Nose-to-Brain Delivery. Pharmaceutics 2022; 14:pharmaceutics14010147. [PMID: 35057043 PMCID: PMC8780454 DOI: 10.3390/pharmaceutics14010147] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 12/29/2021] [Accepted: 01/05/2022] [Indexed: 12/12/2022] Open
Abstract
A widely investigated approach to bypass the blood brain barrier is represented by the intranasal delivery of therapeutic agents exploiting the olfactory or trigeminal connections nose-brain. As for Parkinson’s disease (PD), characterized by dopaminergic midbrain neurons degeneration, currently there is no disease modifying therapy. Although several bio-nanomaterials have been evaluated for encapsulation of neurotransmitter dopamine (DA) or dopaminergic drugs in order to restore the DA content in parkinsonian patients, the premature leakage of the therapeutic agent limits this approach. To tackle this drawback, we undertook a study where the active was linked to the polymeric backbone by a covalent bond. Thus, novel nanoparticles (NPs) based on N,O-Carboxymethylchitosan-DA amide conjugate (N,O-CMCS-DA) were prepared by the nanoprecipitation method and characterized from a technological view point, cytotoxicity and uptake by Olfactory Ensheating Cells (OECs). Thermogravimetric analysis showed high chemical stability of N,O-CMCS-DA NPs and X-ray photoelectron spectroscopy evidenced the presence of amide linkages on the NPs surface. MTT test indicated their cytocompatibility with OECs, while cytofluorimetry and fluorescent microscopy revealed the internalization of labelled N,O-CMCS-DA NPs by OECs, that was increased by the presence of mucin. Altogether, these findings seem promising for further development of N,O-CMCS-DA NPs for nose-to-brain delivery application in PD.
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Affiliation(s)
- Adriana Trapani
- Department of Pharmacy-Drug Sciences, University of Bari “Aldo Moro”, 70125 Bari, Italy; (F.C.); (G.T.)
- Correspondence: ; Tel.: +39-080-5442114
| | | | - Elvira De Giglio
- Chemistry Department, University of Bari “Aldo Moro”, Via Orabona, 4, 70125 Bari, Italy;
| | - Filomena Corbo
- Department of Pharmacy-Drug Sciences, University of Bari “Aldo Moro”, 70125 Bari, Italy; (F.C.); (G.T.)
| | - Roberta Cassano
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Arcavacata di Rende, 87036 Cosenza, Italy; (R.C.); (M.L.D.G.); (S.T.)
| | - Maria Luisa Di Gioia
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Arcavacata di Rende, 87036 Cosenza, Italy; (R.C.); (M.L.D.G.); (S.T.)
| | - Sonia Trombino
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Arcavacata di Rende, 87036 Cosenza, Italy; (R.C.); (M.L.D.G.); (S.T.)
| | - Md Niamat Hossain
- Department of Medical and Surgical Sciences, University of Foggia, 71122 Foggia, Italy; (M.N.H.); (S.D.G.); (M.C.)
| | - Sante Di Gioia
- Department of Medical and Surgical Sciences, University of Foggia, 71122 Foggia, Italy; (M.N.H.); (S.D.G.); (M.C.)
| | - Giuseppe Trapani
- Department of Pharmacy-Drug Sciences, University of Bari “Aldo Moro”, 70125 Bari, Italy; (F.C.); (G.T.)
| | - Massimo Conese
- Department of Medical and Surgical Sciences, University of Foggia, 71122 Foggia, Italy; (M.N.H.); (S.D.G.); (M.C.)
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Duong CN, Brückner R, Schmitt M, Nottebaum AF, Braun LJ, Meyer Zu Brickwedde M, Ipe U, Vom Bruch H, Schöler HR, Trapani G, Trappmann B, Ebrahimkutty MP, Huveneers S, de Rooij J, Ishiyama N, Ikura M, Vestweber D. Force-induced changes of α-catenin conformation stabilize vascular junctions independently of vinculin. J Cell Sci 2021; 134:273834. [PMID: 34851405 PMCID: PMC8729784 DOI: 10.1242/jcs.259012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 06/08/2021] [Accepted: 11/18/2021] [Indexed: 11/20/2022] Open
Abstract
Cadherin-mediated cell adhesion requires anchoring via the β-catenin–α-catenin complex to the actin cytoskeleton, yet, α-catenin only binds F-actin weakly. A covalent fusion of VE-cadherin to α-catenin enhances actin anchorage in endothelial cells and strongly stabilizes endothelial junctions in vivo, blocking inflammatory responses. Here, we have analyzed the underlying mechanism. We found that VE-cadherin–α-catenin constitutively recruits the actin adaptor vinculin. However, removal of the vinculin-binding region of α-catenin did not impair the ability of VE-cadherin–α-catenin to enhance junction integrity. Searching for an alternative explanation for the junction-stabilizing mechanism, we found that an antibody-defined epitope, normally buried in a short α1-helix of the actin-binding domain (ABD) of α-catenin, is openly displayed in junctional VE-cadherin–α-catenin chimera. We found that this epitope became exposed in normal α-catenin upon triggering thrombin-induced tension across the VE-cadherin complex. These results suggest that the VE-cadherin–α-catenin chimera stabilizes endothelial junctions due to conformational changes in the ABD of α-catenin that support constitutive strong binding to actin. Summary: There are novel antibody epitopes at the actin-binding domain of α-catenin that correlate with high affinity binding and are exposed in junction-stabilizing VE-cadherin–α-catenin fusion proteins.
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Affiliation(s)
- Cao Nguyen Duong
- Department of Vascular Cell Biology, Max Planck Institute for Molecular Biomedicine, D-48149 Münster, Germany
| | - Randy Brückner
- Department of Vascular Cell Biology, Max Planck Institute for Molecular Biomedicine, D-48149 Münster, Germany
| | - Martina Schmitt
- Department of Vascular Cell Biology, Max Planck Institute for Molecular Biomedicine, D-48149 Münster, Germany
| | - Astrid F Nottebaum
- Department of Vascular Cell Biology, Max Planck Institute for Molecular Biomedicine, D-48149 Münster, Germany
| | - Laura J Braun
- Department of Vascular Cell Biology, Max Planck Institute for Molecular Biomedicine, D-48149 Münster, Germany
| | - Marika Meyer Zu Brickwedde
- Department of Vascular Cell Biology, Max Planck Institute for Molecular Biomedicine, D-48149 Münster, Germany
| | - Ute Ipe
- Department of Vascular Cell Biology, Max Planck Institute for Molecular Biomedicine, D-48149 Münster, Germany
| | - Hermann Vom Bruch
- Department of Cell and Developmental Biology, Max Planck Institute for Molecular Biomedicine, D-48149 Münster, Germany
| | - Hans R Schöler
- Department of Cell and Developmental Biology, Max Planck Institute for Molecular Biomedicine, D-48149 Münster, Germany
| | - Giuseppe Trapani
- Bioactive Materials Laboratory, Max Planck Institute for Molecular Biomedicine, D-48149 Münster, Germany
| | - Britta Trappmann
- Bioactive Materials Laboratory, Max Planck Institute for Molecular Biomedicine, D-48149 Münster, Germany
| | - Mirsana P Ebrahimkutty
- Institute of Medical Physics and Biophysics, University of Muenster, Muenster 48149, Germany
| | - Stephan Huveneers
- Amsterdam University Medical Center, Location AMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Johan de Rooij
- Center for Molecular Medicine, University Medical Center Utrecht, 3584 CG Utrecht, The Netherlands
| | - Noboru Ishiyama
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 1L7, Canada
| | - Mitsuhiko Ikura
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 1L7, Canada
| | - Dietmar Vestweber
- Department of Vascular Cell Biology, Max Planck Institute for Molecular Biomedicine, D-48149 Münster, Germany
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Di Gioia S, Trapani A, Cassano R, Di Gioia ML, Trombino S, Cellamare S, Bolognino I, Hossain MN, Sanna E, Trapani G, Conese M. Nose-to-brain delivery: A comparative study between carboxymethyl chitosan based conjugates of dopamine. Int J Pharm 2021; 599:120453. [PMID: 33675929 DOI: 10.1016/j.ijpharm.2021.120453] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [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: 11/27/2020] [Revised: 02/26/2021] [Accepted: 02/27/2021] [Indexed: 11/25/2022]
Abstract
Herein, the synthesis of a novel polymeric conjugate N,O-CMCS-Dopamine (DA) based on an amide linkage is reported. The performances of this conjugate were compared with those of an analogous N,O-CMCS-DA ester conjugate previously studied (Cassano et al., 2020) to gain insight into their potential utility for Parkinson's disease treatment. The new amide conjugate was synthesized by standard carbodiimide coupling procedure and characterized by FT-IR, 1H NMR spectroscopies and thermal analysis (Differential Scanning Calorimetry). In vitro mucoadhesive studies in simulated nasal fluid (SNF) evidenced high adhesive effect of both ester and amide conjugates. Results demonstrated that the amide conjugate exerted an important role to prevent DA spontaneous autoxidation both under stressed conditions and physiological mimicking ones. MTT test indicated cytocompatibility of the amide conjugate with Olfactory Ensheating Cells (OECs), which were shown by cytofluorimetry to internalize efficiently the conjugate. Overall, among the two conjugates herein studied, the N,O-CMCS-DA amide conjugate seems a promising candidate for improving the delivery of DA by nose-to-brain administration.
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Affiliation(s)
- Sante Di Gioia
- Department of Medical and Surgical Sciences, University of Foggia, 71122 Foggia, Italy
| | - Adriana Trapani
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", 70125 Bari, Italy.
| | - Roberta Cassano
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende, Cosenza, Italy.
| | - Maria Luisa Di Gioia
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende, Cosenza, Italy
| | - Sonia Trombino
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende, Cosenza, Italy
| | - Saverio Cellamare
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", 70125 Bari, Italy
| | - Isabella Bolognino
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", 70125 Bari, Italy
| | - Md Niamat Hossain
- Department of Medical and Surgical Sciences, University of Foggia, 71122 Foggia, Italy
| | - Enrico Sanna
- Department of Life and Environmental Sciences, Section of Neuroscience and Anthropology, University of Cagliari, Monserrato, Cagliari, Italy
| | - Giuseppe Trapani
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", 70125 Bari, Italy
| | - Massimo Conese
- Department of Medical and Surgical Sciences, University of Foggia, 71122 Foggia, Italy
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Cucci LM, Trapani G, Hansson Ö, La Mendola D, Satriano C. Gold Nanoparticles Functionalized with Angiogenin for Wound Care Application. Nanomaterials (Basel) 2021; 11:201. [PMID: 33466813 PMCID: PMC7830515 DOI: 10.3390/nano11010201] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 01/05/2021] [Accepted: 01/11/2021] [Indexed: 12/16/2022]
Abstract
In this work, we aimed to develop a hybrid theranostic nano-formulation based on gold nanoparticles (AuNP)-having a known anti-angiogenic character-and the angiogenin (ANG), in order to tune the angiogenesis-related phases involved in the multifaceted process of the wound healing. To this purpose, spherical were surface "decorated" with three variants of the protein, namely, the recombinant (rANG), the wild-type, physiologically present in the human plasma (wtANG) and a new mutant with a cysteine substitution of the serine at the residue 28 (S28CANG). The hybrid biointerface between AuNP and ANG was scrutinized by a multi-technique approach based on dynamic light scattering, spectroscopic (UV-visible, circular dichroism) and microscopic (atomic force and laser scanning confocal) techniques. The analyses of optical features of plasmonic gold nanoparticles allowed for discrimination of different adsorption modes-i.e.; predominant physisorption and/or chemisorption-triggered by the ANG primary sequence. Biophysical experiments with supported lipid bilayers (SLB), an artificial model of cell membrane, were performed by means of quartz crystal microbalance with dissipation monitoring acoustic sensing technique. Cellular experiments on human umbilical vein endothelial cells (HUVEC), in the absence or presence of copper-another co-player of angiogenesis-were carried out to assay the nanotoxicity of the hybrid protein-gold nanoassemblies as well as their effect on cell migration and tubulogenesis. Results pointed to the promising potential of these nanoplatforms, especially the new hybrid Au-S28CANG obtained with the covalent grafting of the mutant on the gold surface, for the modulation of angiogenesis processes in wound care.
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Affiliation(s)
- Lorena Maria Cucci
- Laboratory of Hybrid NanoBioInterfaces (NHBIL), Department of Chemical Sciences, University of Catania, 95125 Catania, Italy;
| | - Giuseppe Trapani
- Scuola Superiore di Catania, University of Catania, 95123 Catania, Italy;
| | - Örjan Hansson
- Department of Chemistry and Molecular Biology, University of Gothenburg, SE-40530 Göteborg, Sweden;
| | | | - Cristina Satriano
- Laboratory of Hybrid NanoBioInterfaces (NHBIL), Department of Chemical Sciences, University of Catania, 95125 Catania, Italy;
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La Vecchia M, Cuccia F, Ferrera G, Mortellaro G, Cespuglio D, Ognibene L, De Gregorio G, Luca N, Trapani G, Quartuccio E, Gioia A, Palmeri A, Terranova G, Napoli G, Sanfratello A, Lotà C, Torchia M, Venuti V, Valenti V, Tripoli A, Evangelista G, Lo Casto A. PO-1127: Acute and late toxicity report of postoperative IG-IMRT for gynecological malignancies. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)01144-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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12
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Trapani G, Caruso VCL, Cucci LM, Attanasio F, Tabbì G, Forte G, La Mendola D, Satriano C. Graphene Oxide Nanosheets Tailored With Aromatic Dipeptide Nanoassemblies for a Tuneable Interaction With Cell Membranes. Front Bioeng Biotechnol 2020; 8:427. [PMID: 32457892 PMCID: PMC7227426 DOI: 10.3389/fbioe.2020.00427] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 04/14/2020] [Indexed: 12/17/2022] Open
Abstract
Engineered graphene-based derivatives are attractive and promising candidates for nanomedicine applications because of their versatility as 2D nanomaterials. However, the safe application of these materials needs to solve the still unanswered issue of graphene nanotoxicity. In this work, we investigated the self-assembly of dityrosine peptides driven by graphene oxide (GO) and/or copper ions in the comparison with the more hydrophobic diphenylalanine dipeptide. To scrutinize the peptide aggregation process, in the absence or presence of GO and/or Cu2+, we used atomic force microscopy, circular dichroism, UV-visible, fluorescence and electron paramagnetic resonance spectroscopies. The perturbative effect by the hybrid nanomaterials made of peptide-decorated GO nanosheets on model cell membranes of supported lipid bilayers was investigated. In particular, quartz crystal microbalance with dissipation monitoring and fluorescence recovery after photobleaching techniques were used to track the changes in the viscoelastic properties and fluidity of the cell membrane, respectively. Also, cellular experiments with two model tumour cell lines at a short time of incubation, evidenced the high potential of this approach to set up versatile nanoplatforms for nanomedicine and theranostic applications.
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Affiliation(s)
- Giuseppe Trapani
- Scuola Superiore di Catania, University of Catania, Catania, Italy
| | | | - Lorena Maria Cucci
- Department of Chemical Sciences, Nano Hybrid BioInterfaces Lab (NHBIL), University of Catania, Catania, Italy
| | | | - Giovanni Tabbì
- Institute of Crystallography - National Council of Research, Catania, Italy
| | - Giuseppe Forte
- Department of Pharmaceutical Sciences, University of Catania, Catania, Italy
| | | | - Cristina Satriano
- Department of Chemical Sciences, Nano Hybrid BioInterfaces Lab (NHBIL), University of Catania, Catania, Italy
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13
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Conese M, Cassano R, Gavini E, Trapani G, Rassu G, Sanna E, Di Gioia S, Trapani A. Harnessing Stem Cells and Neurotrophic Factors with Novel Technologies in the Treatment of Parkinson's Disease. Curr Stem Cell Res Ther 2020; 14:549-569. [PMID: 30827260 DOI: 10.2174/1574888x14666190301150210] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [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: 10/22/2018] [Revised: 01/28/2019] [Accepted: 02/08/2019] [Indexed: 11/22/2022]
Abstract
Parkinson's disease (PD) is characterized by loss of dopaminergic neurons, oxidative stress and neuroinflammation. The classical therapeutic approach with L-DOPA is not able to control motor symptoms in the long term, thus new disease-modifying or neuroprotective treatments are urgently required in order to match such yet unmet clinical needs. Success in cell-based therapy has been accomplished at a clinical level with human fetal mesencephalic tissue, but ethical issues and a shortage of organs clearly underline the need for novel sources of dopaminergic neurons. Mesenchymal stem cells (MSCs) can be obtained from different adult and fetal tissues that are normally discarded as waste, including adipose tissue, placenta, umbilical cord, and dental tissues. Their neuroregenerative, anti-inflammatory and immunomodulatory properties are mainly mediated by the secretion of an array of bioactive molecules and are heightened when MSCs form tri-dimensional structures called spheroids. Not only can MSCs spontaneously produce neurotrophic factors (NFs) but they can be engineered to synthetize and secrete them in vivo. The aim of this review is to provide a picture of results gained with MSC secretome and spheroids in PD, as well as the possibility of harnessing MSC-based therapy with the use of nano- and micro-structured materials for NF delivery.
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Affiliation(s)
- Massimo Conese
- Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - Roberta Cassano
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Arcavacata di Rende, Cosenza, Italy
| | - Elisabetta Gavini
- Department of Chemistry and Pharmacy, University of Sassari, Sassari, Italy
| | - Giuseppe Trapani
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", Bari, Italy
| | - Giovanna Rassu
- Department of Chemistry and Pharmacy, University of Sassari, Sassari, Italy
| | - Enrico Sanna
- Department of Life and Environmental Sciences, Section of Neuroscience and Anthropology, University of Cagliari, Monserrato (Cagliari), Italy
| | - Sante Di Gioia
- Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - Adriana Trapani
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", Bari, Italy
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Cometa S, Bonifacio MA, Trapani G, Di Gioia S, Dazzi L, De Giglio E, Trapani A. In vitro investigations on dopamine loaded Solid Lipid Nanoparticles. J Pharm Biomed Anal 2020; 185:113257. [PMID: 32199326 DOI: 10.1016/j.jpba.2020.113257] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [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: 12/18/2019] [Revised: 03/02/2020] [Accepted: 03/11/2020] [Indexed: 11/17/2022]
Abstract
The progressive degeneration of nigrostriatal neurons leads to depletion of the neurotransmitter dopamine (DA) in Parkinson's disease (PD). The hydrophilicity of DA, hindering its cross of the Blood Brain Barrier, makes impossible its therapeutic administration. This work aims at investigating some physicochemical features of novel Solid Lipid Nanoparticles (SLN) intended to enhance DA brain delivery for PD patients by intranasal administration. For this aim, novel SLN were formulated in the presence of Glycol Chitosan (GCS), and it was found that SLN containing GCS and DA were smaller than DA-loaded SLN, endowed with a slightly positive zeta potential value and, remarkably, incorporated 81 % of the initial DA content. The formulated SLN were accurately characterized by Infrared Spectroscopy in Attenuated Total Reflectance mode (FT-IT/ATR) and Thermogravimetric Analysis (TGA) to highlight SLN solid-state properties as a preliminary step forward biological assay. Overall, in vitro characterization shows that SLN are promising for DA incorporation and stable from a thermal viewpoint. Further studies are in due course to test their potential for PD treatment.
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Affiliation(s)
| | | | - Giuseppe Trapani
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", Bari, Italy
| | - Sante Di Gioia
- Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - Laura Dazzi
- Department of Life and Environmental Sciences, University of Cagliari, Monserrato, Cagliari, Italy
| | - Elvira De Giglio
- Chemistry Department, University of Bari "Aldo Moro", Bari, Italy.
| | - Adriana Trapani
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", Bari, Italy.
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Cuccia F, Ferrera G, Serretta V, Mortellaro G, Verderame F, Lupo A, Cespuglio D, De Gregorio G, Quartuccio E, Luca N, Trapani G, Tripoli A, Valenti V, Lo Casto A. Hypofractionated Helical 3DCRT and IMRT systems for the Post-Operative Treatment of Prostate Cancer: A Mono-Institutional Report. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Pelissero E, Giuggia M, Todaro MC, Trapani G, Giordano B, Senatore G. [Combined left atrial appendage percutaneous closure and atrial fibrillation ablation: a single center experience]. G Ital Cardiol (Rome) 2019; 18:11S-17S. [PMID: 29297907 DOI: 10.1714/2835.28627] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND We evaluated long-term safety and efficacy of concomitant left atrial appendage (LAA) closure and atrial fibrillation (AF) ablation. METHODS From February 2013 to June 2017, all patients referred for AF ablation and LAA closure (group 1) were enrolled in the study and compared with a matched control group undergoing AF ablation only (group 2). Pulmonary vein isolation was achieved in all cases with radiofrequency or cryoballoon. LAA was occluded with Watchman or Amplatzer Cardiac Plug or Amulet (ACP) devices. All patients were treated with oral anticoagulation therapy for at least 3 months after the procedure ("blanking period"), and then switched to dual antiplatelet therapy with aspirin and clopidogrel for other 3 months, and then to single antiplatelet therapy with aspirin in case of LAA closure, while group 2 was treated with long-term oral anticoagulation therapy according to CHA2DS2-VASc score. Follow-up was performed with transesophageal echocardiography and clinical visit at 3, 6 and 12 months after the procedure. AF burden was evaluated by loop recorder or pacemaker interrogation in all patients. RESULTS Overall, 42 patients were enrolled, 21 in each group. Mean age was 66.86 ± 10.35 years in group 1 vs 68.42 ± 10.61 in group 2 (p=NS); mean CHA2DS2-VASc score was 2.8 ± 1.22 in group 1 vs 2.01 ± 0.93 in group 2 (p=NS), mean HAS-BLED score was 3.2 ± 0.83 in group 1 vs 3.1 ± 0.95 in group 2 (p=NS). Persistent AF was present in 80% of patients in group 1 and in 85% in group 2. LAA closure was successful in all cases (14 Watchman, 7 ACP devices). Procedural and fluoroscopy times were shorter in group 2 (68 ± 17 vs 52 ± 15 min, p <0.05; 23 ± 5 vs 18 ± 3 min, p <0.05, respectively). No procedural complications were observed in group 2, while in group 1 one case of self-terminating pericardial effusion and one arteriovenous fistula were observed. At a mean follow-up of 14.93 ± 10.05 months, complete seal of LAA was documented in all patients, with neither dislocations nor thromboembolic events. Similarly, no long-term complications were observed in group 2. Maintenance of sinus rhythm was overlapping, with an AF relapse rate of 36% in group 1 vs 38% in group 2 (p=NS). CONCLUSIONS Combined LAA percutaneous closure and AF ablation appears to be feasible in high-risk patients.
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Affiliation(s)
- Elisa Pelissero
- Dipartimento di Cardiologia, Ospedale Civile di Ciriè, Ciriè (TO)
| | - Marco Giuggia
- Dipartimento di Cardiologia, Ospedale Civile di Ciriè, Ciriè (TO)
| | - Maria Chiara Todaro
- Dipartimento di Cardiologia, Ospedale Civile di Ivrea, Ivrea (TO) - Dipartimento di Medicina Clinica e Sperimentale, Università degli Studi, Messina
| | - Giuseppe Trapani
- Dipartimento di Cardiologia, Ospedale Civile di Ciriè, Ciriè (TO)
| | | | - Gaetano Senatore
- Dipartimento di Cardiologia, Ospedale Civile di Ciriè, Ciriè (TO)
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17
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Ivanova NA, Trapani A, Franco CD, Mandracchia D, Trapani G, Franchini C, Corbo F, Tripodo G, Kolev IN, Stoyanov GS, Bratoeva KZ. In vitro and ex vivo studies on diltiazem hydrochloride-loaded microsponges in rectal gels for chronic anal fissures treatment. Int J Pharm 2018; 557:53-65. [PMID: 30580086 DOI: 10.1016/j.ijpharm.2018.12.039] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [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: 09/26/2018] [Revised: 12/17/2018] [Accepted: 12/18/2018] [Indexed: 10/27/2022]
Abstract
Diltiazem hydrochloride, topically applied at 2% concentration, is considered effective for the treatment of chronic anal fissures, although it involves several side effects among which anal pruritus and postural hypotension. To test the hypothesis that a sustained delivery system of diltiazem hydrochloride may be helpful for the treatment of chronic anal fissures, in the present study we evaluated the potential of gels containing diltiazem hydrochloride entrapped in microsponges. Such microsponges were based on Eudragit RS 100 and the effect of some formulation variables was assessed by a 23 full factorial screening design. An optimized formulation of diltiazem hydrochloride microsponges was dispersed in Methylcellulose 2% or Poloxamer 407 20% and the resulting gels (micro-l-diltiazem hydrochloride 2%) were subjected to in vitro drug release, ex vivo permeability and drug deposition after application on porcine rectal mucosa. The results showed a prolonged release up to 24 h from micro-l-diltiazem hydrochloride at 2% in the gels. The permeation tests revealed up to 18% higher drug retention on the mucosal tissue after 24 h by the micro-l-diltiazem hydrochloride 2% gels compared to conventional diltiazem hydrochloride gels at 2%. These results suggest that diltiazem hydrochloride-loaded microsponges dispersed in rectal gels may be useful to overcome some limitations of conventional local chronic anal fissure therapy.
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Affiliation(s)
- Nadezhda Antonova Ivanova
- Faculty of Pharmacy, Medical University, "Prof. Dr. Paraskev Stoyanov", 84 Tsar Osvoboditel str., Varna, Bulgaria
| | - Adriana Trapani
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", Via Orabona, 4, 70125 Bari, Italy.
| | | | - Delia Mandracchia
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", Via Orabona, 4, 70125 Bari, Italy
| | - Giuseppe Trapani
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", Via Orabona, 4, 70125 Bari, Italy
| | - Carlo Franchini
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", Via Orabona, 4, 70125 Bari, Italy
| | - Filomena Corbo
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", Via Orabona, 4, 70125 Bari, Italy
| | - Giuseppe Tripodo
- Department of Drug Sciences, University of Pavia, Viale Taramelli, 12, 27100 Pavia, Italy
| | - Iliyan Nikolov Kolev
- Faculty of Pharmacy, Medical University, "Prof. Dr. Paraskev Stoyanov", 84 Tsar Osvoboditel str., Varna, Bulgaria
| | - Georgi Stoyanov Stoyanov
- Department of General and Clinical Pathology, Forensic Medicine and Deontology, Faculty of Medicine, Medical University, "Prof. Dr. Paraskev Stoyanov", 55 Marin Drinov str., Varna, Bulgaria; Faculty of Medicine, Medical University, "Prof. Dr. Paraskev Stoyanov", 55 Marin Drinov str., Varna, Bulgaria
| | - Kameliya Zhechkova Bratoeva
- Faculty of Medicine, Medical University, "Prof. Dr. Paraskev Stoyanov", 55 Marin Drinov str., Varna, Bulgaria
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Tripodo G, Trapani A, Rosato A, Di Franco C, Tamma R, Trapani G, Ribatti D, Mandracchia D. Hydrogels for biomedical applications from glycol chitosan and PEG diglycidyl ether exhibit pro-angiogenic and antibacterial activity. Carbohydr Polym 2018; 198:124-130. [DOI: 10.1016/j.carbpol.2018.06.061] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 05/02/2018] [Accepted: 06/14/2018] [Indexed: 11/25/2022]
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Castellani S, Trapani A, Spagnoletta A, di Toma L, Magrone T, Di Gioia S, Mandracchia D, Trapani G, Jirillo E, Conese M. Nanoparticle delivery of grape seed-derived proanthocyanidins to airway epithelial cells dampens oxidative stress and inflammation. J Transl Med 2018; 16:140. [PMID: 29792199 PMCID: PMC5966913 DOI: 10.1186/s12967-018-1509-4] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 05/08/2018] [Indexed: 12/05/2022] Open
Abstract
Background Chronic respiratory diseases, whose one of the hallmarks is oxidative stress, are still incurable and need novel therapeutic tools and pharmaceutical agents. The phenolic compounds contained in grape are endowed with well-recognized anti-oxidant, anti-inflammatory, anti-cancer, and anti-aging activities. Considering that natural anti-oxidants, such as proanthocyanidins, have poor water solubility and oral bioavailability, we have developed a drug delivery system based on solid lipid nanoparticles (SLN), apt to encapsulate grape seed extract (GSE), containing proanthocyanidins. Methods Plain, 6-coumarin (6-Coum), DiR- and GSE-loaded SLN were produced with the melt-emulsion method. Physicochemical characterization of all prepared SLN was determined by photon correlation spectroscopy and laser Doppler anemometry. MTT assay (spectrophotometry) and propidium iodide (PI) assay (cytofluorimetry) were used to assess cell viability. Flow cytometry coupled with cell imaging was performed for assessing apoptosis and necrosis by Annexin V/7-AAD staining (plain SLE), cell internalization (6-Coum-SLN) and reactive oxygen species (ROS) production (SLN-GSE). NF-κB nuclear translocation was studied by immunofluorescence. In vivo bio-imaging was used to assess lung deposition and persistence of aerosolized DiR-loaded SLN. Results Plain SLN were not cytotoxic when incubated with H441 airway epithelial cells, as judged by both PI and MTT assays as well as by apoptosis/necrosis evaluation. 6-Coum-loaded SLN were taken up by H441 cells in a dose-dependent fashion and persisted into cells at detectable levels up to 16 days. SLN were detected in mice lungs up to 6 days. SLN-GSE possessed 243 nm as mean diameter, were negatively charged, and stable in size at 37 °C in Simulated Lung Fluid up to 48 h and at 4 °C in double distilled water up to 2 months. The content of SLN in proanthocyanidins remained unvaried up to 2 months. GSE-loaded SLN determined a significant reduction in ROS production when added 24–72 h before the stimulation with hydrogen peroxide. Interestingly, while at 24 h free GSE determined a higher decrease of ROS production than SLN-GSE, the contrary was seen at 48 and 72 h. Similar results were observed for NF-κB nuclear translocation. Conclusions SLN are a biocompatible drug delivery system for natural anti-oxidants obtained from grape seed in a model of oxidative stress in airway epithelial cells. They feature stability and long-term persistence inside cells where they release proanthocyanidins. These results could pave the way to novel anti-oxidant and anti-inflammatory therapies for chronic respiratory diseases. Electronic supplementary material The online version of this article (10.1186/s12967-018-1509-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- S Castellani
- Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - A Trapani
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", Bari, Italy
| | - A Spagnoletta
- Laboratory "BioProducts and BioProcesses", ENEA Research Centre Trisaia, Rotondella, MT, Italy
| | - L di Toma
- Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - T Magrone
- Department of Basic Medical Sciences, Neuroscience and Sensory Organs, University of Bari "Aldo Moro", Bari, Italy
| | - S Di Gioia
- Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - D Mandracchia
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", Bari, Italy
| | - G Trapani
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", Bari, Italy
| | - E Jirillo
- Department of Basic Medical Sciences, Neuroscience and Sensory Organs, University of Bari "Aldo Moro", Bari, Italy
| | - M Conese
- Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy.
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Trapani G, Satriano C, La Mendola D. Peptides and their Metal Complexes in Neurodegenerative Diseases: from Structural Studies to Nanomedicine Prospects. Curr Med Chem 2018; 25:715-747. [PMID: 29076411 DOI: 10.2174/0929867324666171026163144] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [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: 05/15/2017] [Revised: 07/21/2017] [Accepted: 10/02/2017] [Indexed: 11/22/2022]
Abstract
BACKGROUND The metal ions dyshomeostasis is increasingly recognized to play a crucial role in the development of aging-related neurodegenerative diseases. Metal trafficking in the brain is related to proteins regulating both uptake and efflux of metals in neurons. Different pathways may occur, depending on specific binding features of metallo-protein complexes. In particular, copper, zinc and iron are recognized to influence the biochemistry of proteins involved in neurodegeneration (for instance Aβ and α-synuclein), as well as those playing a crucial role in neuronal development and efficiency (neurotrophins). Nowadays the application of peptide-based drugs is widespread for different pathologies, but the short lifetime in vivo due to proteolysis and other shortcomings still limit their use. METHODS A structured search was performed about the state of the art on: i) peptidomimetic approaches used to obtain peptides mimicking the metal binding activities of proteins involved in neurons survival, ii) peptide-based nanostructures, as promising biomaterials in tissue engineering and substrates for neurites outgrowth and synapses formation. RESULTS Recent developments on metal-binding peptides and peptide nanostructures for therapeutic application in neurodegenerative diseases are reviewed, showing as metal ions interaction may affect structural and biological properties of different proteins involved in neurodegenerative diseases. CONCLUSION This review provides a survey on peptides able to mimic some biofunctional activities of the whole protein, e.g., the binding features to metal ions, thus highlighting their promising potentialities as new, more effective, therapeutics. The integration of such peptides into multifunctional nanoplatforms can be a smart route for the development of biomaterials scaffolds and nanomedicine applications.
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Affiliation(s)
- Giuseppe Trapani
- Department of Chemical Sciences, University of Catania, Catania, Italy.,Scuola Superiore di Catania, University of Catania, Catania, Italy
| | - Cristina Satriano
- Department of Chemical Sciences, University of Catania, Catania, Italy
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Mandracchia D, Trapani A, Perteghella S, Sorrenti M, Catenacci L, Torre ML, Trapani G, Tripodo G. pH-sensitive inulin-based nanomicelles for intestinal site-specific and controlled release of celecoxib. Carbohydr Polym 2018; 181:570-578. [DOI: 10.1016/j.carbpol.2017.11.110] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Revised: 11/14/2017] [Accepted: 11/29/2017] [Indexed: 12/24/2022]
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Mandraffino G, Aragona C, Cairo V, Trapani G, Quartuccio S, Mamone F, Scuruchi M, Saitta A, Imbalzano E. P765Anti-proprotein convertase subtilisin-kexin type 9 monoclonal antibodies: effects on lipid profile and arterial stiffness. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx501.p765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Trapani G, Quartuccio S, Pardeo R, Zito C, Lizio G, Mandraffino G, Saitta A, Imbalzano E. 2858Impaired right ventricular function denote a worse physical performance and preclinical pulmonary hypertension in obese patients with essential hypertension and preserved ejection fraction. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.2858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Mandracchia D, Trapani A, Tripodo G, Perrone MG, Giammona G, Trapani G, Colabufo NA. In vitro evaluation of glycol chitosan based formulations as oral delivery systems for efflux pump inhibition. Carbohydr Polym 2017; 166:73-82. [DOI: 10.1016/j.carbpol.2017.02.096] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 02/13/2017] [Accepted: 02/22/2017] [Indexed: 11/29/2022]
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Mandracchia D, Rosato A, Trapani A, Chlapanidas T, Montagner IM, Perteghella S, Di Franco C, Torre ML, Trapani G, Tripodo G. Design, synthesis and evaluation of biotin decorated inulin-based polymeric micelles as long-circulating nanocarriers for targeted drug delivery. Nanomedicine: Nanotechnology, Biology and Medicine 2017; 13:1245-1254. [DOI: 10.1016/j.nano.2017.01.001] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 12/07/2016] [Accepted: 01/04/2017] [Indexed: 11/30/2022]
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Sportelli MC, Volpe A, Picca RA, Trapani A, Palazzo C, Ancona A, Lugarà PM, Trapani G, Cioffi N. Spectroscopic Characterization of Copper-Chitosan Nanoantimicrobials Prepared by Laser Ablation Synthesis in Aqueous Solutions. Nanomaterials (Basel) 2016; 7:E6. [PMID: 28336840 PMCID: PMC5295196 DOI: 10.3390/nano7010006] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [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: 11/29/2016] [Revised: 12/15/2016] [Accepted: 12/26/2016] [Indexed: 11/16/2022]
Abstract
Copper-chitosan (Cu-CS) nanoantimicrobials are a novel class of bioactive agents, providing enhanced and synergistic efficiency in the prevention of biocontamination in several application fields, from food packaging to biomedical. Femtosecond laser pulses were here exploited to disrupt a Cu solid target immersed into aqueous acidic solutions containing different CS concentrations. After preparation, Cu-CS colloids were obtained by tuning both Cu/CS molar ratios and laser operating conditions. As prepared Cu-CS colloids were characterized by Fourier transform infrared spectroscopy (FTIR), to study copper complexation with the biopolymer. X-ray photoelectron spectroscopy (XPS) was used to elucidate the nanomaterials' surface chemical composition and chemical speciation of the most representative elements. Transmission electron microscopy was used to characterize nanocolloids morphology. For all samples, ξ-potential measurements showed highly positive potentials, which could be correlated with the XPS information. The spectroscopic and morphological characterization herein presented outlines the characteristics of a technologically-relevant nanomaterial and provides evidence about the optimal synthesis parameters to produce almost monodisperse and properly-capped Cu nanophases, which combine in the same core-shell structure two renowned antibacterial agents.
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Affiliation(s)
- Maria Chiara Sportelli
- IFN-CNR, Physics Department "M. Merlin", Bari 70126, Italy.
- Chemistry Department, Università degli Studi di Bari "Aldo Moro", Bari 70126, Italy.
| | - Annalisa Volpe
- IFN-CNR, Physics Department "M. Merlin", Bari 70126, Italy.
- Physics Department, Università degli Studi di Bari "Aldo Moro", Bari 70126, Italy.
| | - Rosaria Anna Picca
- Chemistry Department, Università degli Studi di Bari "Aldo Moro", Bari 70126, Italy.
| | - Adriana Trapani
- Department of Pharmacy-Drug Sciences, Università degli Studi di Bari "Aldo Moro", Bari 70126, Italy.
| | - Claudio Palazzo
- Department of Pharmacy-Drug Sciences, Università degli Studi di Bari "Aldo Moro", Bari 70126, Italy.
| | - Antonio Ancona
- IFN-CNR, Physics Department "M. Merlin", Bari 70126, Italy.
| | - Pietro Mario Lugarà
- IFN-CNR, Physics Department "M. Merlin", Bari 70126, Italy.
- Physics Department, Università degli Studi di Bari "Aldo Moro", Bari 70126, Italy.
| | - Giuseppe Trapani
- Department of Pharmacy-Drug Sciences, Università degli Studi di Bari "Aldo Moro", Bari 70126, Italy.
| | - Nicola Cioffi
- Chemistry Department, Università degli Studi di Bari "Aldo Moro", Bari 70126, Italy.
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Mandracchia D, Tripodo G, Trapani A, Ruggieri S, Annese T, Chlapanidas T, Trapani G, Ribatti D. Inulin based micelles loaded with curcumin or celecoxib with effective anti-angiogenic activity. Eur J Pharm Sci 2016; 93:141-6. [DOI: 10.1016/j.ejps.2016.08.027] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Revised: 08/09/2016] [Accepted: 08/13/2016] [Indexed: 10/21/2022]
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Tripodo G, Trapani A, Torre ML, Giammona G, Trapani G, Mandracchia D. Hyaluronic acid and its derivatives in drug delivery and imaging: Recent advances and challenges. Eur J Pharm Biopharm 2016; 97:400-16. [PMID: 26614559 DOI: 10.1016/j.ejpb.2015.03.032] [Citation(s) in RCA: 167] [Impact Index Per Article: 20.9] [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: 01/30/2015] [Revised: 03/21/2015] [Accepted: 03/23/2015] [Indexed: 01/06/2023]
Abstract
Hyaluronic acid (HA) is a biodegradable, biocompatible, nontoxic, and non-immunogenic glycosaminoglycan used for various biomedical applications. The interaction of HA with the CD44 receptor, whose expression is elevated on the surface of many types of tumor cells, makes this polymer a promising candidate for intracellular delivery of imaging and anticancer agents exploiting a receptor-mediated active targeting strategy. Therefore, HA and its derivatives have been most investigated for the development of several carrier systems intended for cancer diagnosis and therapy. Nonetheless, different and important delivery applications of the polysaccharide have also been described, including gene and peptide/protein drugs delivery. The aim of this review was to provide an overview of the existing recent literature on the use of HA and its derivatives for drug delivery and imaging. Notable attention is given to nanotheranostic systems obtained after conjugation of HA to nanocarriers as quantum dots, carbon nanotubes and graphene. Meanwhile, attention is also paid to some challenging aspects that need to be addressed in order to allow translation of preclinical models based on HA and its derivatives for drug delivery and imaging purposes to clinical testing and further their development.
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Affiliation(s)
- Giuseppe Tripodo
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Adriana Trapani
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", via Orabona 4, 70125 Bari, Italy
| | - Maria Luisa Torre
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Gaetano Giammona
- Department of "Scienze e Tecnologie Biologiche, Chimiche, Farmaceutiche (STEBICEF)", University of Palermo, via Archirafi 32, Palermo 90123, Italy
| | - Giuseppe Trapani
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", via Orabona 4, 70125 Bari, Italy
| | - Delia Mandracchia
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", via Orabona 4, 70125 Bari, Italy.
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Mandraffino G, Aragona C, Quartuccio S, Trapani G, Saitta A, Vatrano M, Imbalzano E. Arterial stiffness as a predictor of recovery of left ventricular systolic function after acute myocardial infarction treated with primary percutaneous coronary intervention. Atherosclerosis 2016. [DOI: 10.1016/j.atherosclerosis.2016.07.873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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30
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Di Gioia S, Trapani A, Castellani S, Carbone A, Belgiovine G, Craparo EF, Puglisi G, Cavallaro G, Trapani G, Conese M. Nanocomplexes for gene therapy of respiratory diseases: Targeting and overcoming the mucus barrier. Pulm Pharmacol Ther 2015; 34:8-24. [PMID: 26192479 DOI: 10.1016/j.pupt.2015.07.003] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Revised: 06/04/2015] [Accepted: 07/06/2015] [Indexed: 12/21/2022]
Abstract
Gene therapy, i.e. the delivery and expression of therapeutic genes, holds great promise for congenital and acquired respiratory diseases. Non-viral vectors are less toxic and immunogenic than viral vectors, although they are characterized by lower efficiency. However, they have to overcome many barriers, including inflammatory and immune mediators and cells. The respiratory and airway epithelial cells, the main target of these vectors, are coated with a layer of mucus, which hampers the effective reaching of gene therapy vectors carrying either plasmid DNA or small interfering RNA. This barrier is thicker in many lung diseases, such as cystic fibrosis. This review summarizes the most important advancements in the field of non-viral vectors that have been achieved with the use of nanoparticulate (NP) systems, composed either of polymers or lipids, in the lung gene delivery. In particular, different strategies of targeting of respiratory and airway lung cells will be described. Then, we will focus on the two approaches that attempt to overcome the mucus barrier: coating of the nanoparticulate system with poly(ethylene glycol) and treatment with mucolytics. Our conclusions are: 1) Ligand and physical targeting can direct therapeutic gene expression in specific cell types in the respiratory tract; 2) Mucopenetrating NPs are endowed with promising features to be useful in treating respiratory diseases and should be now advanced in pre-clinical trials. Finally, we discuss the development of such polymer- and lipid-based NPs in the context of in vitro and in vivo disease models, such as lung cancer, as well as in clinical trials.
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Affiliation(s)
- Sante Di Gioia
- Department of Medical and Surgical Sciences, University of Foggia, Viale L. Pinto 1, 71122 Foggia, Italy
| | - Adriana Trapani
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", Via Orabona, 4, 70125 Bari, Italy
| | - Stefano Castellani
- Department of Medical and Surgical Sciences, University of Foggia, Viale L. Pinto 1, 71122 Foggia, Italy
| | - Annalucia Carbone
- Department of Medical and Surgical Sciences, University of Foggia, Viale L. Pinto 1, 71122 Foggia, Italy; Medical Genetics Laboratory, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via Commenda 12, 20122 Milan, Italy
| | - Giuliana Belgiovine
- Department of Medical and Surgical Sciences, University of Foggia, Viale L. Pinto 1, 71122 Foggia, Italy
| | - Emanuela Fabiola Craparo
- Biological Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), Laboratory of Biocompatible Polymers, University of Palermo, Via Archirafi 32, 90123 Palermo, Italy
| | - Giovanni Puglisi
- Dipartimento di Scienze del Farmaco, Università degli Studi di Catania, Viale A. Doria, 6, 95125 Catania, Italy
| | - Gennara Cavallaro
- Biological Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), Laboratory of Biocompatible Polymers, University of Palermo, Via Archirafi 32, 90123 Palermo, Italy
| | - Giuseppe Trapani
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", Via Orabona, 4, 70125 Bari, Italy
| | - Massimo Conese
- Department of Medical and Surgical Sciences, University of Foggia, Viale L. Pinto 1, 71122 Foggia, Italy.
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Mandracchia D, Trapani A, Chlapanidas T, Trapani G, Tripodo G. Enzyme controlled release of celecoxib from inulin based nanomicelles. ACTA ACUST UNITED AC 2015. [DOI: 10.3233/jcb-15010] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Delia Mandracchia
- Department of Pharmacy-Drug Sciences, University of Bari “Aldo Moro”, Bari, Italy
| | - Adriana Trapani
- Department of Pharmacy-Drug Sciences, University of Bari “Aldo Moro”, Bari, Italy
| | | | - Giuseppe Trapani
- Department of Pharmacy-Drug Sciences, University of Bari “Aldo Moro”, Bari, Italy
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Hatano K, Sekimata K, Yamada T, Abe J, Ito K, Ogawa M, Magata Y, Toyohara J, Ishiwata K, Biggio G, Serra M, Laquintana V, Denora N, Latrofa A, Trapani G, Liso G, Suzuki H, Sawada M, Nomura M, Toyama H. Radiosynthesis and in vivo evaluation of two imidazopyridineacetamides, [(11)C]CB184 and [ (11)C]CB190, as a PET tracer for 18 kDa translocator protein: direct comparison with [ (11)C](R)-PK11195. Ann Nucl Med 2015; 29:325-35. [PMID: 25616581 PMCID: PMC4835529 DOI: 10.1007/s12149-015-0948-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [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: 06/27/2014] [Accepted: 01/14/2015] [Indexed: 10/31/2022]
Abstract
OBJECTIVE We report synthesis of two carbon-11 labeled imidazopyridines TSPO ligands, [(11)C]CB184 and [(11)C]CB190, for PET imaging of inflammatory process along with neurodegeneration, ischemia or brain tumor. Biodistribution of these compounds was compared with that of [(11)C]CB148 and [(11)C](R)-PK11195. METHODS Both [(11)C]CB184 and [(11)C]CB190 having (11)C-methoxyl group on an aromatic ring were readily prepared using [(11)C]methyl triflate. Biodistribution and metabolism of the compounds were examined with normal mice. An animal PET study using 6-hydroxydopamine treated rats as a model of neurodegeneration was pursued for proper estimation of feasibility of the radioligands to determine neuroinflammation process. RESULTS [(11)C]CB184 and [(11)C]CB190 were obtained via O-methylation of corresponding desmethyl precursor using [(11)C]methyl triflate in radiochemical yield of 73 % (decay-corrected). In vivo validation as a TSPO radioligand was carried out using normal mice and lesioned rats. In mice, [(11)C]CB184 showed more uptake and specific binding than [(11)C]CB190. Metabolism studies showed that 36 % and 25 % of radioactivity in plasma remained unchanged 30 min after intravenous injection of [(11)C]CB184 and [(11)C]CB190, respectively. In the PET study using rats, lesioned side of the brain showed significantly higher uptake than contralateral side after i.v. injection of either [(11)C]CB184 or [(11)C](R)-PK11195. Indirect Logan plot analysis revealed distribution volume ratio (DVR) between the two sides which might indicate lesion-related elevation of TSPO binding. The DVR was 1.15 ± 0.10 for [(11)C](R)-PK11195 and was 1.15 ± 0.09 for [(11)C]CB184. CONCLUSION The sensitivity to detect neuroinflammation activity was similar for [(11)C]CB184 and [(11)C](R)-PK11195.
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Affiliation(s)
- Kentaro Hatano
- Department of Clinical and Experimental Neuroimaging, Center for Development of Advanced Medicine for Dementia, National Center for Geriatrics and Gerontology, Obu, Aichi, 474-8522, Japan,
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Tripodo G, Pasut G, Trapani A, Mero A, Lasorsa FM, Chlapanidas T, Trapani G, Mandracchia D. Inulin-d-α-Tocopherol Succinate (INVITE) Nanomicelles as a Platform for Effective Intravenous Administration of Curcumin. Biomacromolecules 2015; 16:550-7. [DOI: 10.1021/bm501616e] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Giuseppe Tripodo
- Department
of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Gianfranco Pasut
- Department
of Pharmaceutical and Pharmacological Sciences, University of Padova, Via F. Marzolo 5, 35131 Padova, Italy
| | - Adriana Trapani
- Department
of Pharmacy-Drug Sciences, University of Bari “Aldo Moro”, Via Orabona 4, 70125 Bari, Italy
| | - Anna Mero
- Department
of Pharmaceutical and Pharmacological Sciences, University of Padova, Via F. Marzolo 5, 35131 Padova, Italy
| | | | - Theodora Chlapanidas
- Department
of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Giuseppe Trapani
- Department
of Pharmacy-Drug Sciences, University of Bari “Aldo Moro”, Via Orabona 4, 70125 Bari, Italy
| | - Delia Mandracchia
- Department
of Pharmacy-Drug Sciences, University of Bari “Aldo Moro”, Via Orabona 4, 70125 Bari, Italy
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34
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Trapani A, Gioia SD, Castellani S, Carbone A, Cavallaro G, Trapani G, Conese M. Nanocarriers for respiratory diseases treatment: recent advances and current challenges. Curr Top Med Chem 2014; 14:1133-47. [PMID: 24678708 DOI: 10.2174/1568026614666140329225817] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Revised: 09/25/2013] [Accepted: 10/24/2013] [Indexed: 11/22/2022]
Abstract
Pulmonary delivery of locally-acting drugs encapsulated in nanocarriers provides several advantages for the treatment of respiratory diseases such as asthma, chronic obstructive pulmonary diseases, cystic fibrosis, tuberculosis and lung cancer. These advantages include, among others, sustained drug delivery to the lungs, reduced therapeutic dose and improved patient compliance. The aim of this review is to give an updated overview on recent advances recorded in the last few years in this field as well as on the major challenges still existing and that remain to be overcome before any clinical application. After an outline on the cellular and extracellular barriers affecting drug delivery to the airways both in physiological and pathological conditions, the significant developments recorded using inhaled polymeric- and lipid-based nanocarriers for drug and gene delivery to the lung are presented. In this discussion, the major challenges existing in the field are evidenced including the understanding of the factors governing the mucus penetration capability of these nanocarriers and the identification of new technologies for delivering drugs to specific regions or cell types of the lungs. In this regard, the recognition of receptor expressed only at lung level may facilitate drug targeting to this organ and it should improve the therapeutic efficacy of nanocarrier-based treatments for respiratory diseases.
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Affiliation(s)
| | | | | | | | | | | | - Massimo Conese
- Department of Medical and Surgical Sciences, University of Foggia, Viale L. Pinto 1, 71122, Foggia, Italy.
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35
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Trapani G, Quartuccio S, Dalbeni A, Stellitano A, Paunovic N, Imbalzano E. Late radiation-induced cardiac conduction system abnormalities. Int J Cardiol 2014; 173:e40-1. [DOI: 10.1016/j.ijcard.2014.03.125] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2014] [Accepted: 03/14/2014] [Indexed: 11/28/2022]
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36
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Trapani A, Palazzo C, Contino M, Perrone MG, Cioffi N, Ditaranto N, Colabufo NA, Conese M, Trapani G, Puglisi G. Mucoadhesive properties and interaction with P-glycoprotein (P-gp) of thiolated-chitosans and -glycol chitosans and corresponding parent polymers: a comparative study. Biomacromolecules 2014; 15:882-93. [PMID: 24521085 DOI: 10.1021/bm401733p] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The aim of the present work was to compare the mucoadhesive and efflux pump P-glycoprotein (P-gp) interacting properties of chitosan (CS)- and glycolchitosan (GCS)-based thiomers and corresponding unmodified parent polymers. For this purpose, the glycol chitosan-N-acetyl-cysteine (GCS-NAC) and glycol chitosan-glutathione (GCS-GSH) thiomers were prepared under simple and mild conditions. Their mucoadhesive characteristics were studied by turbidimetric and zeta potential measurements. The P-gp interacting properties were evaluated measuring the effects of thiolated- and unmodified-polymers on the bidirectional transport (BA/AB) of rhodamine-123 across Caco-2 cells as well as in the calcein-AM and ATPase activity assays. Although all the thiomers and unmodified polymers showed optimal-excellent mucoadhesive properties, the best mucoadhesive performances have been obtained by CS and CS-based thiomers. Moreover, it was found that the pretreatment of Caco-2 cell monolayer with GCS-NAC or GCS restores Rho-123 cell entrance by inhibiting P-gp activity. Hence, GCS-NAC and GCS may constitute new biomaterials useful for improving the bioavailability of P-gp substrates.
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Affiliation(s)
- Adriana Trapani
- Dipartimento di Farmacia-Scienze del Farmaco and ‡Dipartimento di Chimica, Università degli Studi di Bari "Aldo Moro" , Via Orabona, 4, 70125 Bari, Italy
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37
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Piccinonna S, Margiotta N, Denora N, Iacobazzi RM, Pacifico C, Trapani G, Natile G. A model radiopharmaceutical agent targeted to translocator protein 18 kDa (TSPO). Dalton Trans 2014; 42:10112-5. [PMID: 23752769 DOI: 10.1039/c3dt51152a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A stable Re complex containing an imidazopyridine ligand with a high affinity for TSPO has been synthesized as a model for new (99m)Tc or (188/186)Re-based radiopharmaceuticals to be used in SPECT diagnosis or in therapy, respectively. The new complex fac-[ReBr(CO)3(TZ6)], structurally characterized, showed high affinity (nanomolar concentration) for the target protein.
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Affiliation(s)
- Sara Piccinonna
- Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, Via E. Orabona 4, 70125 Bari, Italy
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Trapani A, Palazzo C, de Candia M, Lasorsa FM, Trapani G. Targeting of the translocator protein 18 kDa (TSPO): a valuable approach for nuclear and optical imaging of activated microglia. Bioconjug Chem 2013. [PMID: 23837837 DOI: 10.1021/bc300666f/asset/images/large/bc-2012-00666f_0003.jpeg] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
Abstract
The aim of the present review is to give a concise and updated analysis of the imaging tools for the visualization of activated microglia. After an overview on the important pathologies where activated microglia are involved, we first describe the role played by the translocator protein-18 kDa (TSPO) as an important target for the visualization of activated microglia. Second, imaging tools based on TSPO ligands radiolabeled for positron emission tomography (PET) are summarized with particular emphasis to the TSPO ligands alternative to the standard radioligand [(11)C]PK11195 or (R)-[(11)C]PK11195. In this regard, an updated list of (11)C- and (18)F-labeled TSPO radioligands is shown. Moreover, a detailed analysis based on TSPO ligands bearing fluorescent probes for fluorescence microscopy is also provided. This last optical imaging technique represents an area of large and increasing interest due to the advantages offered by the use of simple instrumentation and safer experimental conditions. The scope and limitations of the nuclear and optical imaging techniques are discussed. Finally, a perspective on the plausible advances in this area is also presented.
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Affiliation(s)
- Adriana Trapani
- Department of Pharmacy and Drug Sciences, University of Bari , Bari, 70125, Italy
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39
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Trapani A, Palazzo C, de Candia M, Lasorsa FM, Trapani G. Targeting of the Translocator Protein 18 kDa (TSPO): A Valuable Approach for Nuclear and Optical Imaging of Activated Microglia. Bioconjug Chem 2013; 24:1415-28. [DOI: 10.1021/bc300666f] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Adriana Trapani
- Department of Pharmacy and Drug
Sciences, University of Bari, Bari, 70125,
Italy
| | - Claudio Palazzo
- Department of Pharmacy and Drug
Sciences, University of Bari, Bari, 70125,
Italy
| | - Modesto de Candia
- Department of Pharmacy and Drug
Sciences, University of Bari, Bari, 70125,
Italy
| | | | - Giuseppe Trapani
- Department of Pharmacy and Drug
Sciences, University of Bari, Bari, 70125,
Italy
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40
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Piccinonna S, Denora N, Margiotta N, Laquintana V, Trapani G, Natile G. Synthesis, Characterization, and Binding to the Translocator Protein (18 kDa, TSPO) of a New Rhenium Complex as a Model of Radiopharmaceutical Agents. Z Anorg Allg Chem 2013. [DOI: 10.1002/zaac.201300110] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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41
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Denora N, Cassano T, Laquintana V, Lopalco A, Trapani A, Cimmino CS, Laconca L, Giuffrida A, Trapani G. Novel codrugs with GABAergic activity for dopamine delivery in the brain. Int J Pharm 2012; 437:221-31. [PMID: 22940209 DOI: 10.1016/j.ijpharm.2012.08.023] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2012] [Revised: 08/13/2012] [Accepted: 08/16/2012] [Indexed: 10/28/2022]
Abstract
This study investigates the use of codrugs of the GABAergic agent 2-phenyl-imidazo[1,2-a]pyridinacetamide and dopamine (DA) or ethyl ester L-Dopa (LD) as a strategy to deliver DA and simultaneously activate GABA-receptors in the brain. For this purpose, both DA and LD ethyl ester were linked by carbamate bond to imidazo[1,2-a]pyridine acetamide moieties to yield two DA- and two LD-imidazopyridine derivatives. These compounds were evaluated in vitro to assess their stability, binding affinities and cell membrane transport, and in vivo to assess their bio-availability via microdialysis studies. The two DA derivatives were adequately stable in buffered solution, but underwent cleavage in diluted human serum. By contrast, the LD derivatives were unstable in buffered solution. Receptor binding studies showed that the DA-imidazopyridine carbamates had binding affinity for benzodiazepine receptors in the nanomolar range. Brain microdialysis experiments indicated that intraperitoneal administration of the DA derivatives sustained DA levels in rat striatum over a 4-h period. These results suggest that DA-imidazopyridine carbamates are new DA codrugs with potential application for DA replacement therapy.
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Affiliation(s)
- Nunzio Denora
- Department of Pharmacy, University of Bari, Bari 70125, Italy
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42
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Mandracchia D, Denora N, Franco M, Pitarresi G, Giammona G, Trapani G. New Biodegradable Hydrogels Based on Inulin and α,β-Polyaspartylhydrazide Designed for Colonic Drug Delivery: In Vitro Release of Glutathione and Oxytocin. Journal of Biomaterials Science, Polymer Edition 2012; 22:313-28. [DOI: 10.1163/092050609x12609582084086] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Delia Mandracchia
- a Dipartimento Farmaco-Chimico, Università di Bari, Via Orabona 4, 70125 Bari, Italy
| | - Nunzio Denora
- b Dipartimento Farmaco-Chimico, Università di Bari, Via Orabona 4, 70125 Bari, Italy
| | - Massimo Franco
- c Dipartimento Farmaco-Chimico, Università di Bari, Via Orabona 4, 70125 Bari, Italy
| | - Giovanna Pitarresi
- d Dipartimento di Chimica e Tecnologie Farmaceutiche, Università di Palermo, Via Archirafi 32, 90123 Palermo, Italy
| | - Gaetano Giammona
- e Dipartimento di Chimica e Tecnologie Farmaceutiche, Università di Palermo, Via Archirafi 32, 90123 Palermo, Italy; IBF-CNR, Via Ugo La Malfa 153, 90143 Palermo, Italy
| | - Giuseppe Trapani
- f Dipartimento Farmaco-Chimico, Università di Bari, Via Orabona 4, 70125 Bari, Italy
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Cutrignelli A, Trapani A, Lopedota A, Franco M, Mandracchia D, Denora N, Laquintana V, Trapani G. Griseofulvin/carrier blends: application of partial least squares (PLS) regression analysis for estimating the factors affecting the dissolution efficiency. AAPS PharmSciTech 2011; 12:1019-30. [PMID: 21826623 DOI: 10.1208/s12249-011-9670-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2011] [Accepted: 07/28/2011] [Indexed: 11/30/2022] Open
Abstract
The main aim of the present study was to estimate the carrier characteristics affecting the dissolution efficiency of griseofulvin (Gris) containing blends (BLs) using partial least squares (PLS) regression analysis. These systems were prepared at three different drug/carrier weight ratios (1/5, 1/10, and 1/20) by the solvent evaporation method, a well-established method for preparing solid dispersions (SDs). The carriers used were structurally different including polymers, a polyol, acids, bases and sugars. The BLs were characterised at the solid-state by spectroscopic (Fourier transform infrared spectroscopy), thermoanalytical (differential scanning calorimetry) and X-ray diffraction studies and their dissolution behaviours were quantified in terms of dissolution efficiencies (log DE/DE(Gris)). The correlation between the selected descriptors, including parameters for size, lipophilicity, cohesive energy density, and hydrogen bonding capacity and log DE/DE(Gris) (i.e., DE and DE(Gris) are the dissolution efficiencies of the BLs and the pure drug, respectively) was established by PLS regression analysis. Thus two models characterised by satisfactory coefficient of determination were derived. The generated equations point out that aqueous solubility, density, lipophilic/hydrophilic character, dispersive/polar forces and hydrogen bonding acceptor/donor ability of the carrier are important features for dissolution efficiency enhancement. Finally, it could be concluded that the correlations developed may be used to predict at a semiquantitative level the dissolution behaviour of BLs of other essentially neutral drugs possessing hydrogen bonding acceptor groups only.
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Abstract
BACKGROUND Ligand targeted therapy (LTT) is a powerful pharmaceutical strategy to achieve selective drug delivery to pathological cells, for both therapeutic and diagnostic purposes, with the advantage of limited side effects and toxicity. This active drug targeting approach is based on the discovery that there are receptors overexpressed on pathological cells, compared to their expression in normal tissues. PURPOSE The purpose of this article is to review recently published data on LTT with applications, both in the field of cancer therapy and other diseases. Moreover, data on LTT exploiting receptors overexpressed at cytoplasmatic level are also reviewed. METHODS Data were deduced from Medline (PubMed) and SciFinder and their selections were made with preference to papers where the most relevant receptors were involved. RESULTS Several groups have reported improved delivery of targeted nanocarriers, as compared to nontargeted ones, to pathological cells. LTT offers several advantages, but there are also limitations in the development of this strategy. Moreover, LTT have shown encouraging results in in vitro and in animal models in vivo; hence their clinical potential awaits investigation. CONCLUSION Recent studies highlight that the ligand density plays an important role in targeting efficacy. Furthermore, LTT applications in diseases different from cancer and those exploiting receptors overexpressed at cytoplasmatic level are growing.
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Denora N, Laquintana V, Trapani A, Suzuki H, Sawada M, Trapani G. New fluorescent probes targeting the mitochondrial-located translocator protein 18 kDa (TSPO) as activated microglia imaging agents. Pharm Res 2011; 28:2820-32. [PMID: 21818711 DOI: 10.1007/s11095-011-0552-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2011] [Accepted: 07/28/2011] [Indexed: 11/28/2022]
Abstract
PURPOSE To evaluate the utility of new Translocator protein 18 kDa (TSPO)-targeted fluorescent probes for in vivo molecular imaging of activated microglia. METHODS Compounds 2-4 were synthesized; their stability and affinity for TSPO were determined. Compounds 2-4 were incubated both with Ra2 cells in the presence of LPS, a potent activator of microglia, and with tissue sections of normal and chemically injured brains. Compounds 2-4 were injected into carotid artery or directly in striatum of mice. Cells and tissue sections from these in vitro and in vivo studies were observed by fluorescence microscopy after histochemical treatments. RESULTS Compounds 2-4 are stable in both buffer and physiological medium and showed high affinity for TSPO and were found to stain live Ra2 microglial cells effectively. Double staining with Mito Tracker Red suggested that binding sites of compounds 2 and 3 may exist on mitochondria. In vivo studies showed that compounds 2-4 may penetrate in part into brain; moreover, cells in mouse striatum were stained with compounds 2-4 and microglial marker CD11b. CONCLUSION Compounds 2-4 can fluorescently label activated microglia in vitro and in vivo.
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Affiliation(s)
- Nunzio Denora
- Dipartimento Farmaco-Chimico, Facoltà di Farmacia, Università degli Studi di Bari, Via Orabona 4, 70125 Bari, Italy
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Denora N, Laquintana V, Trapani A, Lopedota A, Latrofa A, Gallo JM, Trapani G. Translocator protein (TSPO) ligand-Ara-C (cytarabine) conjugates as a strategy to deliver antineoplastic drugs and to enhance drug clinical potential. Mol Pharm 2010; 7:2255-69. [PMID: 20958082 DOI: 10.1021/mp100235w] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The aim of this work was to evaluate TSPO ligand-Ara-C conjugation as an approach for the selective delivery of the antineoplastic agent to brain tumors as well as for overcome P-gp resistance induction observed for the majority of cytotoxic agents, enhancing the drug clinical potential. To this end, the novel N-imidazopyridinacetyl-Ara-C conjugates 3a-c, 10 and 15 have been prepared and evaluated for their cytotoxicity against glioma cell lines. In contrast to that observed for 3a-c and 10, the conjugate 15 resulted stable in both phosphate buffer and physiological medium. In all cases, the release of free Ara-C from hydrolyzed conjugates was checked by HPLC and ESI-MS analysis. Conjugates 10 and 15 displayed very high in vitro TSPO affinity and selectivity, and, hence, they may possess potential for targeted brain delivery. Due to the favorable features displayed by the conjugate 15, it was further evaluated on glioma cell lines, expressing high levels of TSPO, in the presence and in the absence of specific nucleoside transport (NT) inhibitors. In contrast to that observed for the free Ara-C, the presence of NT inhibitors did not reduce the cytotoxic activity of 15. Moreover, conjugate 15, as N(4)-acyl derivative of Ara-C, should be resistant to inactivation by cytidine deaminase, and it may possess enhanced propensity to target brain tumor cells characterized by a reduced expression of NTs. In addition, this conjugate behaves as a clear P-gp modulator and thereby may be useful to reverse MDR. Transport studies across the MDCKII-MDR1 monolayer indicated that conjugate 15 should overcome the BBB by transcellular pathway. All these features may be useful for enhancing the clinical potential of the nucleoside drug Ara-C.
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Affiliation(s)
- Nunzio Denora
- Dipartimento Farmaco-Chimico, Facoltà di Farmacia, Università degli Studi di Bari, Via Orabona 4, 70125 Bari, Italy
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Margiotta N, Denora N, Ostuni R, Laquintana V, Anderson A, Johnson SW, Trapani G, Natile G. Platinum(II) complexes with bioactive carrier ligands having high affinity for the translocator protein. J Med Chem 2010; 53:5144-54. [PMID: 20568783 DOI: 10.1021/jm100429r] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Peripheral benzodiazepine receptors (PBRs, also named TSPO) are overexpressed in many tumor types, with the grade of TSPO overexpression correlating with the malignancy of the tumor. For this reason, TSPO-binding ligands have been widely explored as carriers for receptor-mediated drug delivery. In this paper we have selected a ligand with nanomolar affinity for TSPO, [2-(4-chlorophenyl)-8-aminoimidazo[1,2-a]pyridin-3-yl]-N,N-di-n-propylacetamide (3), for preparing platinum adducts that are structural analogues to picoplatin, cis-[PtCl(2)(NH(3))(2-picoline)] (AMD0473, 6), a platinum analogue currently in advanced clinical investigation. In vitro studies assessing receptor binding and cytotoxicity against human and rat glioma cells have shown that the new compounds cis-[PtX(2)(NH(3)){[2-(4-chlorophenyl)-8-aminoimidazo[1,2-a]pyridin-3-yl]-N,N-di-n-propylacetamide}] (X = I, 4; X = Cl, 5) keep high affinity and selectivity for TSPO (nanomolar concentration) and are as cytotoxic as cisplatin. Moreover, they appear to be equally active against sensitive and cisplatin-resistant A2780 cells. Similar to cisplatin, these compounds induce apoptosis but show a favorable 10- to 100-fold enhanced accumulation in the glioma cells.
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Affiliation(s)
- Nicola Margiotta
- Pharmaco-Chemistry Department, Bioinorganic Division, University "A. Moro" of Bari, Via E. Orabona 4, 70125 Bari, Italy
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Abstract
BACKGROUND Malignant brain tumors are among the most challenging to treat and at present there are no uniformly successful treatment strategies. Standard treatment regimens consist of maximal surgical resection followed by radiotherapy and chemotherapy. The limited survival advantage attributed to chemotherapy is partially due to low CNS penetration of antineoplastic agents across the blood-brain barrier (BBB). OBJECTIVE The objective of this paper is to review recent approaches to delivering anticancer drugs into primary brain tumors. METHODS Both preclinical and clinical strategies to circumvent the BBB are considered that include chemical modification and colloidal carriers. CONCLUSION Analysis of the available data indicates that new approaches may be useful for CNS delivery, yet an appreciation of pharmacokinetic issues and improved knowledge of tumor biology will be needed to affect significantly drug delivery to the target site.
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Musacchio T, Laquintana V, Latrofa A, Trapani G, Torchilin VP. PEG-PE micelles loaded with paclitaxel and surface-modified by a PBR-ligand: synergistic anticancer effect. Mol Pharm 2009; 6:468-79. [PMID: 19718800 DOI: 10.1021/mp800158c] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Selective ligands to the peripheral benzodiazepine receptor (PBR) may induce apoptosis and cell cycle arrest. An overexpression of PBR in certain cancers allowed us to consider the use of highly selective ligands to PBR for receptor-mediated drug targeting to tumors. With this in mind, we prepared PBR-targeted nanoparticulate drug delivery systems (PEG-PE micelles) loaded with the anticancer drug paclitaxel (PCL) to test possible synergistic anticancer effects. PEG2k-PE-based polymeric micelles with and without PCL were prepared in HBS, pH 7.5, and conjugated with a PBR-ligand (CB86) in 0.45% of DMSO. The cytotoxic effect of such micelles against the LN 18 human glioblastoma cell line was studied in cell culture. The micelles maintained their size and size distribution and remained intact without drug release after the PBR-ligand conjugation. The PCL-loaded PBR-targeted micelles showed a significantly enhanced toxicity against human glioblastoma LN 18 cancer cells in vitro. Thus, PBR-targeted nanopreparations may potentially serve as a new nanomedicine for targeted cancer therapy.
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Affiliation(s)
- Tiziana Musacchio
- Department of Pharmaceutical Sciences and Center for Pharmaceutical Biotechnology and Nanomedicine, Northeastern University, Boston, Massachusetts 02115, USA
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Lopedota A, Trapani A, Cutrignelli A, Chiarantini L, Pantucci E, Curci R, Manuali E, Trapani G. The use of Eudragit® RS 100/cyclodextrin nanoparticles for the transmucosal administration of glutathione. Eur J Pharm Biopharm 2009; 72:509-20. [DOI: 10.1016/j.ejpb.2009.02.013] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2008] [Revised: 02/17/2009] [Accepted: 02/26/2009] [Indexed: 11/29/2022]
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