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Braidi N, Parenti F, Scurani G, Tassinari F, Buffagni M, Bonifaci L, Cavalca G, Pettenuzzo N, Ghelfi F. Influences of Nitrogen Base Excess on ARGET ATRP of Styrene with Ascorbic Acid Acetonide and Traces of Oxygen and Water. Polym Chem 2023. [DOI: 10.1039/d2py01373h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
Ascorbic acid is a promising regenerating agent for Activators ReGenerated by Electron Transfer Atom Transfer Radical Polymerization (ARGET ATRP) thanks to its sustainability and environmental friendlyness. The ascorbate anion has...
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Borsari M, Braidi N, Buffagni M, Ghelfi F, Parenti F, Porcelli N, Serafini G, Isse AA, Bonifaci L, Cavalca G, Longo A, Morandini I, Pettenuzzo N. Copper-catalyzed ARGET ATRP of styrene from ethyl α-haloisobutyrate in EtOAc/EtOH, using ascorbic acid/Na2CO3 as reducing system. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110675] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Dalla Pozza M, Orvain C, Brustolin L, Pettenuzzo N, Nardon C, Gaiddon C, Fregona D. Gold(III) to Ruthenium(III) Metal Exchange in Dithiocarbamato Complexes Tunes Their Biological Mode of Action for Cytotoxicity in Cancer Cells. Molecules 2021; 26:4073. [PMID: 34279414 PMCID: PMC8271683 DOI: 10.3390/molecules26134073] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 06/27/2021] [Accepted: 06/29/2021] [Indexed: 12/12/2022] Open
Abstract
Malignant tumors have affected the human being since the pharaoh period, but in the last century the incidence of this disease has increased due to a large number of risk factors, including deleterious lifestyle habits (i.e., smoking) and the higher longevity. Many efforts have been spent in the last decades on achieving an early stage diagnosis of cancer, and more effective cures, leading to a decline in age-standardized cancer mortality rates. In the last years, our research groups have developed new metal-based complexes, with the aim to obtain a better selectivity for cancer cells and less side effects than the clinically established reference drug cisplatin. This work is focused on four novel Au(III) and Ru(III) complexes that share the piperidine dithiocarbamato (pipe-DTC) as the ligand, in a different molar ratio. The compounds [AuCl2(pipeDTC)], [Au(pipeDTC)2]Cl, [Ru(pipeDTC)3] and β-[Ru2(pipeDTC)5] have been synthesized and fully characterized by several chemical analyses. We have then investigated their biological properties in two different cell lines, namely, AGS (gastric adenocarcinoma) and HCT116 (colon carcinomas), showing significant differences among the four compounds. First, the two gold-based compounds and β-[Ru2(pipeDTC)5] display IC50 in the µM range, significantly lower than cisplatin. Second, we showed that [AuCl2(pipeDTC)] and β-[Ru2(pipeDTC)5]Cl drive different molecular mechanisms. The first was able to induce the protein level of the DNA damage response factor p53 and the autophagy protein p62, in contrast to the second that induced the ATF4 protein level, but repressed p62 expression. This study highlights that the biological activity of different complexes bringing the same organic ligand depends on the electronic and structural properties of the metal, which are able to fine tune the biological properties, giving us precious information that can help to design more selective anticancer drugs.
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Affiliation(s)
- Maria Dalla Pozza
- Department of Chemical Sciences, University of Padova, Via F. Marzolo 1, 35131 Padova, Italy; (M.D.P.); (L.B.); (N.P.); (C.N.)
| | - Christophe Orvain
- Interface Recherche Fondamentale en Cancérologie, Université de Strasbourg, Inserm UMR_S 1113, 3 av. Molière, 67200 Strasbourg, France;
| | - Leonardo Brustolin
- Department of Chemical Sciences, University of Padova, Via F. Marzolo 1, 35131 Padova, Italy; (M.D.P.); (L.B.); (N.P.); (C.N.)
| | - Nicolò Pettenuzzo
- Department of Chemical Sciences, University of Padova, Via F. Marzolo 1, 35131 Padova, Italy; (M.D.P.); (L.B.); (N.P.); (C.N.)
| | - Chiara Nardon
- Department of Chemical Sciences, University of Padova, Via F. Marzolo 1, 35131 Padova, Italy; (M.D.P.); (L.B.); (N.P.); (C.N.)
| | - Christian Gaiddon
- Interface Recherche Fondamentale en Cancérologie, Université de Strasbourg, Inserm UMR_S 1113, 3 av. Molière, 67200 Strasbourg, France;
| | - Dolores Fregona
- Department of Chemical Sciences, University of Padova, Via F. Marzolo 1, 35131 Padova, Italy; (M.D.P.); (L.B.); (N.P.); (C.N.)
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Braidi N, Buffagni M, Buzzoni V, Ghelfi F, Parenti F, Focarete ML, Gualandi C, Bedogni E, Bonifaci L, Cavalca G, Ferrando A, Longo A, Morandini I, Pettenuzzo N. Unusual Cross-Linked Polystyrene by Copper-Catalyzed ARGET ATRP Using a Bifunctional Initiator and No Cross-Linking Agent. Macromol Res 2021. [DOI: 10.1007/s13233-021-9039-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Brustolin L, Pettenuzzo N, Nardon C, Quarta S, Montagner I, Pontisso P, Rosato A, Conte P, Merigliano S, Fregona D. Labelled micelles for the delivery of cytotoxic Cu(II) and Ru(III) compounds in the treatment of aggressive orphan cancers: Design and biological in vitro data. J Inorg Biochem 2020; 213:111259. [PMID: 33039747 DOI: 10.1016/j.jinorgbio.2020.111259] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 09/06/2020] [Accepted: 09/20/2020] [Indexed: 12/16/2022]
Abstract
A recent study on our metal-dithiocarbamato complexes pointed out the antiproliferative properties and the druglikeness of some new patented derivatives. In this work, the best compounds have been encapsulated in micellar nanocarriers, being also carbohydrate-functionalized on their hydrophilic surface to investigate the possibility of a cancer-selective delivery. In particular, the nonionic block copolymer Pluronic® F127 (PF127) has been chemically modified with sugars and the derivatives characterized by means of NMR spectroscopy and FT-IR spectrophotometry. Then, the two selected complexes (β-[Ru2(PipeDTC)5]Cl (PipeDTC = piperidine dithiocarbamate) and [Cu(ProOMeDTC)2] (ProOMeDTC = L-proline methyl ester dithiocarbamate)), have been loaded into the hydrophobic core of PF127 micelles and cancer-targeting counterparts. These nanoformulations have been studied for their dimensions (DLS, TEM) and stability, and tested for their cytotoxicity against aggressive human cancer cell lines. The in vitro results were paralleled with mechanistic studies through Confocal Laser Scanning Microscopy and xCELLigence analysis.
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Affiliation(s)
- Leonardo Brustolin
- Department of Surgical, Oncologic and Gastroenterological Sciences, University of Padova, Via Giustiniani 2, 35128 Padova, Italy; Department of Chemical Sciences, University of Padova, Via F. Marzolo 1, 35131 Padova, Italy
| | - Nicolò Pettenuzzo
- Department of Surgical, Oncologic and Gastroenterological Sciences, University of Padova, Via Giustiniani 2, 35128 Padova, Italy; Department of Chemical Sciences, University of Padova, Via F. Marzolo 1, 35131 Padova, Italy
| | - Chiara Nardon
- Department of Chemical Sciences, University of Padova, Via F. Marzolo 1, 35131 Padova, Italy
| | - Santina Quarta
- Department of Medicine, University of Padova, Via Giustiniani 2, 35128 Padova, Italy
| | - Isabella Montagner
- Department of Surgical, Oncologic and Gastroenterological Sciences, University of Padova, Via Giustiniani 2, 35128 Padova, Italy; Venetian Oncological Institute, Via Gattamelata 64, 35128 Padova, Italy
| | - Patrizia Pontisso
- Department of Medicine, University of Padova, Via Giustiniani 2, 35128 Padova, Italy
| | - Antonio Rosato
- Department of Surgical, Oncologic and Gastroenterological Sciences, University of Padova, Via Giustiniani 2, 35128 Padova, Italy; Venetian Oncological Institute, Via Gattamelata 64, 35128 Padova, Italy
| | - Pierfranco Conte
- Department of Surgical, Oncologic and Gastroenterological Sciences, University of Padova, Via Giustiniani 2, 35128 Padova, Italy; Venetian Oncological Institute, Via Gattamelata 64, 35128 Padova, Italy
| | - Stefano Merigliano
- Department of Surgical, Oncologic and Gastroenterological Sciences, University of Padova, Via Giustiniani 2, 35128 Padova, Italy
| | - Dolores Fregona
- Department of Chemical Sciences, University of Padova, Via F. Marzolo 1, 35131 Padova, Italy.
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Brustolin L, Pettenuzzo N, Nardon C, Quarta S, Marchiò L, Biondi B, Pontisso P, Fregona D. Au(iii)-Proline derivatives exhibiting selective antiproliferative activity against HepG2/SB3 apoptosis-resistant cancer cells. Dalton Trans 2019; 48:16017-16025. [PMID: 31599279 DOI: 10.1039/c9dt03036k] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This paper deals with the combination of a proline-based moiety with biologically active gold centers in the oxidation states +1 and +3. In particular, six Au(i)/(iii)-proline dithiocarbamato (DTC) complexes with general formulae [Au(DTC)2] and [AuIIIX2(DTC)] (X = Cl, Br) are reported here. After the synthesis of the ligand and the complexes, all derivatives were characterized via several techniques and tested for their stability in DMSO/water media. This study was focused on the demonstration of a peculiar behavior of Au(iii)-DTC species in solution. Finally, the complexes were screened for their antiproliferative activity against 2 human cancer cell lines, namely HepG2 and HepG2/SB3, taken as models of hepatocellular carcinoma. The latter, chosen for its aggressiveness due to the upregulation of the anti-apoptotic protein SerpinB3, was selectively inhibited in terms of growth by some Au(iii)-DTC complexes.
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Affiliation(s)
- L Brustolin
- Department of Chemical Sciences, University of Padova, Via F. Marzolo 1, 35131 Padova, Italy. and Department of Surgical, Oncologic and Gastroenterological Sciences, University of Padova, Via Giustiniani 2, 35128, Padova, Italy
| | - N Pettenuzzo
- Department of Chemical Sciences, University of Padova, Via F. Marzolo 1, 35131 Padova, Italy. and Department of Surgical, Oncologic and Gastroenterological Sciences, University of Padova, Via Giustiniani 2, 35128, Padova, Italy
| | - C Nardon
- Department of Chemical Sciences, University of Padova, Via F. Marzolo 1, 35131 Padova, Italy.
| | - S Quarta
- Department of Medicine, University of Padova, Via Giustiniani 2, 35128, Padova, Italy
| | - L Marchiò
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze, 17/A - 43124, Parma, Italy
| | - B Biondi
- CNR, Padova Unit, Inst Biomol Chem, Via Marzolo 1, I-35131 Padua, Italy
| | - P Pontisso
- Department of Medicine, University of Padova, Via Giustiniani 2, 35128, Padova, Italy
| | - D Fregona
- Department of Chemical Sciences, University of Padova, Via F. Marzolo 1, 35131 Padova, Italy.
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Pettenuzzo N, Brustolin L, Coltri E, Gambalunga A, Chiara F, Trevisan A, Biondi B, Nardon C, Fregona D. Cu II and Au III Complexes with Glycoconjugated Dithiocarbamato Ligands for Potential Applications in Targeted Chemotherapy. ChemMedChem 2019; 14:1162-1172. [PMID: 31091012 DOI: 10.1002/cmdc.201900226] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [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: 04/11/2019] [Revised: 04/29/2019] [Indexed: 11/07/2022]
Abstract
This work is focused on the synthesis, characterization, and preliminary biological evaluation of bio-conjugated AuIII and CuII complexes with the aim of overcoming the well-known side effects of chemotherapy by improving the selective accumulation of an anticancer metal payload in malignant cells. For this purpose, carbohydrates were chosen as targeting agents, exploiting the Warburg effect that accounts for the overexpression of glucose-transporter proteins (in particular GLUTs) in the phospholipid bilayer of most neoplastic cells. We linked the dithiocarbamato moiety to the C1 position of three different monosaccharides: d-glucose, d-galactose, and d-mannose. Altogether, six complexes with a 1:2 metal-to-ligand stoichiometry were synthesized and in vitro tested as anticancer agents. One of them showed high cytotoxic activity toward the HCT116 colorectal human carcinoma cell line, paving the way to future in vivo studies aimed at evaluating the role of carbohydrates in the selective delivery of whole molecules into cancerous cells.
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Affiliation(s)
- Nicolò Pettenuzzo
- Department of Chemical Sciences (DISC), University of Padova, Via Marzolo 1, 35131, Padova, Italy.,Department of Surgical, Oncological and Gastroenterological Sciences (DISCOG), University of Padova, Via Giustiniani 2, 35128, Padova, Italy
| | - Leonardo Brustolin
- Department of Chemical Sciences (DISC), University of Padova, Via Marzolo 1, 35131, Padova, Italy.,Department of Surgical, Oncological and Gastroenterological Sciences (DISCOG), University of Padova, Via Giustiniani 2, 35128, Padova, Italy
| | - Elisa Coltri
- Department of Chemical Sciences (DISC), University of Padova, Via Marzolo 1, 35131, Padova, Italy
| | - Alberto Gambalunga
- Department of Cardio-Thoraco-Vascular Sciences and Public Health (DCTV), University of Padova, Via Giustiniani 2, 35128, Padova, Italy
| | - Federica Chiara
- Department of Cardio-Thoraco-Vascular Sciences and Public Health (DCTV), University of Padova, Via Giustiniani 2, 35128, Padova, Italy
| | - Andrea Trevisan
- Department of Cardio-Thoraco-Vascular Sciences and Public Health (DCTV), University of Padova, Via Giustiniani 2, 35128, Padova, Italy
| | - Barbara Biondi
- Institute of Biomolecular Chemistry, Padova Unit, CNR, Via Marzolo 1, 35131, Padova, Italy
| | - Chiara Nardon
- Department of Chemical Sciences (DISC), University of Padova, Via Marzolo 1, 35131, Padova, Italy
| | - Dolores Fregona
- Department of Chemical Sciences (DISC), University of Padova, Via Marzolo 1, 35131, Padova, Italy
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Brustolin L, Nardon C, Pettenuzzo N, Zuin Fantoni N, Quarta S, Chiara F, Gambalunga A, Trevisan A, Marchiò L, Pontisso P, Fregona D. Synthesis, chemical characterization and cancer cell growth-inhibitory activities of Cu(ii) and Ru(iii) aliphatic and aromatic dithiocarbamato complexes. Dalton Trans 2018; 47:15477-15486. [DOI: 10.1039/c8dt02965b] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The effects mediated by different cyclic dithiocarbamic ligands on three classes of antiproliferative coordination compounds were studied.
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Tomasello MF, Nardon C, Lanza V, Di Natale G, Pettenuzzo N, Salmaso S, Milardi D, Caliceti P, Pappalardo G, Fregona D. New comprehensive studies of a gold(III) Dithiocarbamate complex with proven anticancer properties: Aqueous dissolution with cyclodextrins, pharmacokinetics and upstream inhibition of the ubiquitin-proteasome pathway. Eur J Med Chem 2017. [PMID: 28651154 DOI: 10.1016/j.ejmech.2017.06.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [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: 11/15/2022]
Abstract
The gold(III)-dithiocarbamate complex AuL12 (dibromo [ethyl-N-(dithiocarboxy-kS,kS')-N-methylglycinate] gold(III)), is endowed with promising in vitro/in vivo antitumor activity and toxicological profile. Here, we report our recent strategies to improve its water solubility and stability under physiological conditions along with our efforts for unravelling its tangled mechanism of action. We used three types of α-cyclodextrins (CDs), namely β-CD, Me-β-CD and HP-β-CD to prepare aqueous solutions of AuL12. The ability of these natural oligosaccharide carriers to enhance water solubility of hydrophobic compounds, allowed drug stability of AuL12 to be investigated. Moreover, pharmacokinetic experiments were first carried out for a gold(III) coordination compound, after i.v. injection of the nanoformulation AuL12/HP-β-CD to female mice. The gold content in the blood samples was detected at scheduled times by AAS (atomic absorption spectrometry) analysis, highlighting a fast biodistribution with a tβ1/2 of few minutes and a slow escretion (tα1/2 of 14.3 h). The in vitro cytotoxic activity of AuL12 was compared with the AuL12/HP-β-CD mixture against a panel of three human tumor cell lines (i.e., HeLa, KB and MCF7). Concerning the mechanism of action, we previously reported the proteasome-inhibitory activity of some our gold(III)-based compounds. In this work, we moved from the proteasome target to upstream of the important ubiquitin-proteasome pathway, testing the effects of AuL12 on the polyubiquitination reactions involving the Ub-activating (E1) and -conjugating (E2) enzymes.
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Affiliation(s)
- Marianna F Tomasello
- IBB-CNR, Istituto di Biostrutture e Bioimmagini, Sede Secondaria di Catania, Via Paolo Gaifami, 18 - 95126, Catania, Italy
| | - Chiara Nardon
- Università degli Studi di Padova, Dipartimento di Scienze Chimiche, Via F. Marzolo 1, 35131, Padova, Italy
| | - Valeria Lanza
- IBB-CNR, Istituto di Biostrutture e Bioimmagini, Sede Secondaria di Catania, Via Paolo Gaifami, 18 - 95126, Catania, Italy
| | - Giuseppe Di Natale
- IBB-CNR, Istituto di Biostrutture e Bioimmagini, Sede Secondaria di Catania, Via Paolo Gaifami, 18 - 95126, Catania, Italy
| | - Nicolò Pettenuzzo
- Università degli Studi di Padova, Dipartimento di Scienze Chimiche, Via F. Marzolo 1, 35131, Padova, Italy
| | - Stefano Salmaso
- Università degli Studi di Padova, Dipartimento di Scienze Farmaceutiche, Via F. Marzolo 5, 35131, Padova, Italy
| | - Danilo Milardi
- IBB-CNR, Istituto di Biostrutture e Bioimmagini, Sede Secondaria di Catania, Via Paolo Gaifami, 18 - 95126, Catania, Italy
| | - Paolo Caliceti
- Università degli Studi di Padova, Dipartimento di Scienze Farmaceutiche, Via F. Marzolo 5, 35131, Padova, Italy
| | - Giuseppe Pappalardo
- IBB-CNR, Istituto di Biostrutture e Bioimmagini, Sede Secondaria di Catania, Via Paolo Gaifami, 18 - 95126, Catania, Italy.
| | - Dolores Fregona
- Università degli Studi di Padova, Dipartimento di Scienze Chimiche, Via F. Marzolo 1, 35131, Padova, Italy.
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Nardon C, Boscutti G, Gabbiani C, Massai L, Pettenuzzo N, Fassina A, Messori L, Fregona D. Cell and Cell-Free Mechanistic Studies on Two Gold(III) Complexes with Proven Antitumor Properties. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201601215] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Chiara Nardon
- Dept. Chemical Sciences; University of Padova; Via Marzolo 1 35131 Padova Italy
| | - Giulia Boscutti
- Dept. Chemical Sciences; University of Padova; Via Marzolo 1 35131 Padova Italy
| | - Chiara Gabbiani
- Dept. Chemistry and Industrial Chemistry; University of Pisa; Via Moruzzi 13 56124 Pisa Italy
| | - Lara Massai
- Laboratory of Metals in Medicine; Dept. Chemistry; University of Florence; Via della Lastruccia 3 50019 Sesto Fiorentino, Florence Italy
| | - Nicolò Pettenuzzo
- Dept. Chemical Sciences; University of Padova; Via Marzolo 1 35131 Padova Italy
| | - Ambrogio Fassina
- Dept. Medicine; Dept. Chemistry; University of Padova; Via Giustiniani 2 35128 Padova Italy
| | - Luigi Messori
- Laboratory of Metals in Medicine; Dept. Chemistry; University of Florence; Via della Lastruccia 3 50019 Sesto Fiorentino, Florence Italy
| | - Dolores Fregona
- Dept. Chemical Sciences; University of Padova; Via Marzolo 1 35131 Padova Italy
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Nardon C, Pettenuzzo N, Fregona D. Gold Complexes for Therapeutic Purposes: an Updated Patent Review (2010-2015). Curr Med Chem 2016; 23:3374-3403. [DOI: 10.2174/0929867323666160504103843] [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: 02/04/2016] [Revised: 04/27/2016] [Accepted: 05/02/2016] [Indexed: 11/22/2022]
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