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Da Ros T, Ostric A, Andreola F, Filocamo M, Pietrogrande M, Corsolini F, Stroppiano M, Bruni S, Serafino A, Fiorito S. Carbon nanotubes as nanovectors for intracellular delivery of laronidase in Mucopolysaccharidosis type I. Nanoscale 2018; 10:657-665. [PMID: 29239447 DOI: 10.1039/c7nr07393c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The immobilization of proteins on carbon nanotubes (CNTs) has been widely reported mainly for the preparation of sensors while the conjugation of enzymes for therapeutic purposes has scarcely been considered. Herein we report, to the best of our knowledge, the first example of intracellular delivery of a therapeutic enzyme by means of CNTs, retaining its activity. Mucopolysaccharidosis I is a rare genetic disease characterized by the deficiency or absence of the activity of the α-l-iduronidase (IDUA) enzyme. We evaluated the capacity of the recombinant form of the human IDUA enzyme, laronidase (Aldurazyme®), conjugated with CNTs to be internalized by fibroblasts from subjects affected with Mucopolysaccharidosis type I and the capacity of the enzyme to retain its activity after internalization. The enzyme was successfully delivered into the lysosomal space and the enzymatic activity of the conjugate was preserved after internalization up to 48 hours. This paves the way towards the use of such a kind of construct for therapeutic applications.
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Affiliation(s)
- T Da Ros
- INSTM unit of Trieste, Department of Chemical and Pharmaceutical Sciences, University of Trieste, Piazzale Europa 1, 34127 Trieste, Italy.
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Herreros-López A, Carini M, Da Ros T, Carofiglio T, Marega C, La Parola V, Rapozzi V, Xodo L, Alshatwi AA, Hadad C, Prato M. Nanocrystalline cellulose-fullerene: Novel conjugates. Carbohydr Polym 2017; 164:92-101. [DOI: 10.1016/j.carbpol.2017.01.068] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Revised: 01/17/2017] [Accepted: 01/18/2017] [Indexed: 01/23/2023]
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Cusan C, Altinier G, Sosa S, Sibilla F, Bucar F, Tubaro A, Prato M, Spalluto G, Da Ros T. Anti-inflammatory and anti-oxidant activity of a new class of phenyl-pyrazolone derivatives. Curr Drug Discov Technol 2006; 3:67-73. [PMID: 16712464 DOI: 10.2174/157016306776637573] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
The anti-inflammatory activity of a new class of phenyl-pyrazolone derivatives, structurally related to phenidone, has been evaluated using the Croton oil ear test in mice as model of acute inflammation. Derivative 5h reduces the percentage of oedema similarly to indomethacin and more efficiently than phenylbutazone. The anti-inflammatory activity of these two reference drugs depends on their COX inhibition, but for the synthesized derivatives it has not been demonstrated a significant COX or LOX inhibition, as previously reported. While the anti-inflammatory activity of phenidone is correlated to its anti-oxidant properties, the redox potential of these compounds appears not decisive in the inflammatory process inhibition. In order to investigate the mechanism of action for these compounds, we quantified their anti-oxidant activity and the lipophilicity, and a relationship between the calculated logP and the percentage of oedema reduction was found. We hypothesize that the anti-inflammatory activity, recorded in vivo, could be related to lipophilic parameter of these compounds.
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Affiliation(s)
- C Cusan
- Dipartimento di Scienze Farmaceutiche, Università di Trieste, Piazzale Europa 1, I-34127 Trieste, Italy
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Ross MF, Kelso GF, Blaikie FH, James AM, Cochemé HM, Filipovska A, Da Ros T, Hurd TR, Smith RAJ, Murphy MP. Lipophilic triphenylphosphonium cations as tools in mitochondrial bioenergetics and free radical biology. Biochemistry (Mosc) 2005; 70:222-30. [PMID: 15807662 DOI: 10.1007/s10541-005-0104-5] [Citation(s) in RCA: 299] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Lipophilic phosphonium cations were first used to investigate mitochondrial biology by Vladimir Skulachev and colleagues in the late 1960s. Since then, these molecules have become important tools for exploring mitochondrial bioenergetics and free radical biology. Here we review why these molecules are useful in mitochondrial research and outline some of the ways in which they are now being utilized.
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Affiliation(s)
- M F Ross
- MRC Dunn Human Nutrition Unit, Cambridge, CB2 2XY, UK
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Maconi A, Pastorin G, Da Ros T, Spalluto G, Gao ZG, Jacobson K, Baraldi P, Cacciari B, Varani K, Moro S, Borea P. Synthesis, Biological Properties, and Molecular Modeling Investigation of the First Potent, Selective, and Water-Soluble Human A3 Adenosine Receptor Antagonist. J Med Chem 2002. [DOI: 10.1021/jm020829j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abstract
This review describes recent advances in the development of DNA-photocleavage agents. Major mechanisms of photosensitized DNA photocleavage are presented and the most popular categories of compounds are considered, which include metal complexes and many organic functional derivatives. DNA-targeted conjugates of photosensitizers are also described and discussed.
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Affiliation(s)
- T Da Ros
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Trieste, Piazzale Europa 1, I-34127 Trieste, Italy.
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Abstract
Recent advances in the chemistry of fullerene have allowed the synthesis of many classes of novel fullerene derivatives. Among these classes, fullerene-based amino acids and peptides are particularly interesting, both for structural studies and biological applications. In this review, we will discuss our own achievements in this rapidly growing field. In particular, the application of fulleroproline (Fpr) amino acids and peptides to medicinal chemistry and material science will be highlighted.
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Affiliation(s)
- A Bianco
- Laboratoire de Chimie Immunologique, IBMC, UPR 9021 CNRS, Strasbourg, France.
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Kordatos K, Da Ros T, Bosi S, Vázquez E, Bergamin M, Cusan C, Pellarini F, Tomberli V, Baiti B, Pantarotto D, Georgakilas V, Spalluto G, Prato M. Novel versatile fullerene synthons. J Org Chem 2001; 66:4915-20. [PMID: 11442425 DOI: 10.1021/jo015608k] [Citation(s) in RCA: 121] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report the synthesis of three novel, versatile fullerene intermediates whose main feature is the presence of an amino end group. Simple condensation reactions of these intermediates under standard conditions produce new derivatives that are useful for applications in materials science and medicinal chemistry.
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Affiliation(s)
- K Kordatos
- Dipartimento di Scienze Farmaceutiche, Università di Trieste, Piazzale Europa 1, 34127 Trieste, Italy
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Abstract
[see structure]. A fullerene derivative containing a free amino group has been condensed with N-Fmoc-L-glutamic acid alpha-tert-butyl ester to give a C60-functionalized amino acid. The carboxylic end of this amino acid has been deprotected in acidic conditions, and the resulting acid has been used for solid-phase peptide synthesis. The final peptide, cleaved from the resin, was very soluble in water solutions and showed antimicrobial activity against two representative bacteria.
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Affiliation(s)
- F Pellarini
- Dipartimento di Scienze Farmaceutiche, Università di Trieste, Piazzale Europa, 1, 34127 Trieste, Italy, and Dipartimento di Biochimica, Biofisica e Chimica delle Macromolecole, Università di Trieste, Via Giorgieri 1, 34127 Trieste, Italy
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Abstract
Photoprocesses associated with the complexation of a pyridine-functionalized C60 fullerene derivative to ruthenium- and zinc-tetraphenylporphyrins (tpp) have been studied by time-resolved optical and transient EPR spectroscopies. It has been found that upon irradiation in toluene, a highly efficient triplet-triplet energy transfer governs the deactivation of the photoexcited [Ru(tpp)], while electron transfer (ET) from the porphyrin to the fullerene prevails in polar solvents. Complexation of [Zn(tpp)] by the fullerene derivative is reversible and, following excitation of the [Zn(tpp)], gives rise to very efficient charge separation. In fluid polar solvents such as THF and benzonitrile, radical-ion pairs (RPs) are generated both by intramolecular ET inside the complex and by intermolecular ET in the uncomplexed form. Charge-separated states have lifetimes of about 10 micros in THF and several hundred of microseconds in benzonitrile at room temperature.
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Affiliation(s)
- T Da Ros
- Dipartimento di Scienze Farmaceutiche, Università di Trieste, Italy
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Kordatos K, Bosi S, Da Ros T, Zambon A, Lucchini V, Prato M. Isolation and characterization of all eight bisadducts of fulleropyrrolidine derivatives. J Org Chem 2001; 66:2802-8. [PMID: 11304204 DOI: 10.1021/jo001708z] [Citation(s) in RCA: 110] [Impact Index Per Article: 4.8] [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
We report the isolation and characterization of bisadducts of fulleropyrrolidine derivatives. The compounds were characterized by means of a variety of spectroscopic techniques, including ES-MS, UV-vis, (1)H NMR, and (13)C NMR. The whole series of bisadducts was separated for the first time in the case of the bispyrrolidines, and the determination of their structure was obtained by NMR spectroscopy with the help of HMQC and HMBC techniques.
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Affiliation(s)
- K Kordatos
- Dipartimento di Scienze Farmaceutiche, Università di Trieste, Piazzale Europa 1, 34127 Trieste, Italy
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Marcorin GL, Da Ros T, Castellano S, Stefancich G, Bonin I, Miertus S, Prato M. Design and synthesis of novel [60]fullerene derivatives as potential HIV aspartic protease inhibitors. Org Lett 2000; 2:3955-8. [PMID: 11112616 DOI: 10.1021/ol000217y] [Citation(s) in RCA: 96] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[structure] Two water-soluble fullerene derivatives have been computer-designed and synthesized. They may exhibit interesting anti-HIV activity owing to the presence of two ammonium groups strategically located on the spheroid surface.
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Affiliation(s)
- G L Marcorin
- Dipartimento di Scienze Farmaceutiche, Università di Trieste, Piazzale Europa, 1, 34127 Trieste, Italy
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Abstract
Positively charged fullerene derivatives, moderately soluble in water:DMSO 9:1, have been tested using three strains of Mycobacterium spp. Some compounds inhibit the growth of Mycobacterium tuberculosis, a human clinical isolate, particularly virulent and resistant, at doses as low as 5 microg/mL.
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Affiliation(s)
- S Bosi
- Dipartimento di Scienze Farmaceutiche, Università di Trieste, Italy
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