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Wang L, Kong H, Jin M, Li X, Stoika R, Lin H, Liu K. Synthesis of disaccharide modified berberine derivatives and their anti-diabetic investigation in zebrafish using a fluorescence-based technology. Org Biomol Chem 2021; 18:3563-3574. [PMID: 32347284 DOI: 10.1039/d0ob00327a] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Berberine is a naturally occurring isoquinoline alkaloid and has been used as an important functional food additive in China due to its various pharmacological activities. Berberine exhibits great potential for developing anti-diabetic agents against type 2 diabetes mellitus (T2DM), as it can reduce the blood glucose level in many animal models. However, the low anti-diabetic activity and poor bioavailability of berberine (below 5%) by oral administration significantly limit its practical applications. To solve these problems, this article focuses on the structural modification of berberine using some disaccharide groups, because the carbohydrate moiety has been proved to improve the bioavailability and enhance the receptor-binding affinity of drugs. Anti-diabetic investigation of the synthesized compounds was performed in a zebrafish model using a fluorescently labelled glucose analog 2-deoxy-2-[(7-nitro-2,1,3-benzoxadiazol-4-yl)amino]-d-glucose (2-NBDG) as a glucose tracker. The results indicated that the modification of berberine with carbohydrate groups could give derivatives with improved anti-diabetic activity, in particular the diglucose modified berberine derivative 1 which could dramatically promote the uptake of 2-NBDG in both zebrafish larvae and their eyes even at very low concentrations. Furthermore, the fluorescence-based anti-diabetic investigation method in zebrafish shows great potential for anti-diabetic drug screening.
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Affiliation(s)
- Lizhen Wang
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, Shandong Province, China.
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2
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Nici F, Oliviero G, Falanga AP, D'Errico S, Marzano M, Musumeci D, Montesarchio D, Noppen S, Pannecouque C, Piccialli G, Borbone N. Anti-HIV activity of new higher order G-quadruplex aptamers obtained from tetra-end-linked oligonucleotides. Org Biomol Chem 2019. [PMID: 29543291 DOI: 10.1039/c7ob02346d] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
By combining the ability of short G-rich oligodeoxyribonucleotides (ODNs) containing the sequence 5'CGGA3' to form higher order G-quadruplex (G4) complexes with the tetra-end-linked (TEL) concept to produce aptamers targeting the HIV envelope glycoprotein 120 (gp120), three new TEL-ODNs (1-3) having the sequence 5'CGGAGG3' were synthesized with the aim of studying the effect of G4 dimerization on their anti-HIV activity. Furthermore, in order to investigate the effect of the groups at the 5' position, the 5' ends of 1-3 were left uncapped (1) or capped with either the lipophilic dimethoxytrityl (DMT) (2) or the hydrophilic glucosyl-4-phosphate (3) moieties. The here reported results demonstrate that only the DMT-substituted TEL-ODN 2 is effective in protecting human MT-4 cell cultures from HIV infection (76% max protection), notwithstanding all the three new aptamers proved to be capable of forming stable higher order dimeric G4s when annealed in K+-containing buffer, thus suggesting that the recognition of a hydrophobic pocket on the target glycoprotein by the aptamers represents a main structural feature for triggering their anti-HIV activity.
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Affiliation(s)
- F Nici
- Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131, Napoli, Italy.
| | - G Oliviero
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples Federico II, Napoli, Italy
| | - A P Falanga
- Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131, Napoli, Italy.
| | - S D'Errico
- Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131, Napoli, Italy.
| | - M Marzano
- Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131, Napoli, Italy.
| | - D Musumeci
- Department of Chemical Sciences, University of Naples Federico II, Napoli, Italy
| | - D Montesarchio
- Department of Chemical Sciences, University of Naples Federico II, Napoli, Italy
| | - S Noppen
- KU Leuven, Department of Microbiology and Immunology, Laboratory of Virology and Chemotherapy, Rega Institute for Medical Research, Herestraat 49, B-3000 Leuven, Belgium
| | - C Pannecouque
- KU Leuven, Department of Microbiology and Immunology, Laboratory of Virology and Chemotherapy, Rega Institute for Medical Research, Herestraat 49, B-3000 Leuven, Belgium
| | - G Piccialli
- Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131, Napoli, Italy.
| | - N Borbone
- Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131, Napoli, Italy.
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3
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Musumeci D, Roviello V, Roviello GN. DNA- and RNA-binding ability of oligoDapT, a nucleobase-decorated peptide, for biomedical applications. Int J Nanomedicine 2018; 13:2613-2629. [PMID: 29750033 PMCID: PMC5936014 DOI: 10.2147/ijn.s156381] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Background Nucleobase-bearing peptides and their interaction with DNA and RNA are an important topic in the development of therapeutic approaches. On one hand, they are highly effective for modulating the nucleic-acid-based biological processes. On the other hand, they permit to overcome some of the main factors limiting the therapeutic efficacy of natural oligonucleotides, such as their rapid degradation by nucleases. Methods and results This article describes the synthesis and characterization of a novel thymine-bearing nucleoamino acid based on the l-diaminopropionic acid (l-Dap) and its solid phase oligomerization to α-peptides (oligoDapT), characterized using mass spectrometry, spectroscopic techniques, and scanning electron microscopy (SEM) analysis. The interaction of the obtained nucleopeptide with DNA and RNA model systems as both single strands (dA12, rA12, and poly(rA)) and duplex structures (dA12/dT12 and poly(rA)/poly(rU)) was investigated by means of circular dichroism (CD) and ultraviolet (UV) experiments. From the analysis of our data, a clear ability of the nucleopeptide to bind nucleic acids emerged, with oligoDapT being able to form stable complexes with both unpaired and double-stranded DNA and RNA. In particular, dramatic changes in the dA12/dT12 and poly(rA)/poly(rU) structures were observed as a consequence of the nucleopeptide binding. CD titrations revealed that multiple peptide units bound all the examined nucleic acid targets, with TLdap/A or TLdap/A:T(U) ratios >4 in case of oligoDapT/DNA and ~2 in oligoDapT/RNA complexes. Conclusion Our findings seem to indicate that Dap-based nucleopeptides are interesting nucleic acid binding-tools to be further explored with the aim to efficiently modulate DNA- and RNA-based biological processes.
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Affiliation(s)
- Domenica Musumeci
- CNR-Institute of Biostructure and Bioimaging, Naples, Italy.,Department of Chemical Sciences, University of Naples Federico II, Naples, Italy
| | - Valentina Roviello
- Analytical Chemistry for the Environment and Centro Servizi Metereologici Avanzati, University of Naples Federico II, Naples, Italy
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Tang Y, Han Z, Guo J, Tian Y, Liu K, Xu L. Synthesis, biophysical characterization, and anti-HIV-1 fusion activity of DNA helix-based inhibitors with a p-benzyloxyphenyl substituent at the 5'-nucleobase site. Bioorg Med Chem Lett 2018; 28:1842-1845. [PMID: 29680665 DOI: 10.1016/j.bmcl.2018.04.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 04/03/2018] [Accepted: 04/05/2018] [Indexed: 11/17/2022]
Abstract
DNA helix-based HIV-1 fusion inhibitors have been discovered as potent drug candidates. Introduction of hydrophobic groups to a nucleobase provides an opportunity to design inhibitors with novel structures and mechanisms of action. In this work, two novel nucleoside analogues (1 and 2) were synthesized and incorporated into four DNA duplex- and quadruplex-based inhibitors. All the molecules showed anti-HIV-1 fusion activity. The effect of the p-benzyloxyphenyl group and the attached linker on the helix formation and thermal stability were fully compared and discussed. Surface plasmon resonance analysis further indicated that inhibitors with the same DNA helix may still have variable reaction targets, mainly attributed to the different hydrophobic modifications.
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Affiliation(s)
- Yongjia Tang
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, 27 Taiping Road, Beijing 100850, China
| | - Zeye Han
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, 27 Taiping Road, Beijing 100850, China
| | - Jiamei Guo
- Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Yangli Tian
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, 27 Taiping Road, Beijing 100850, China
| | - Keliang Liu
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, 27 Taiping Road, Beijing 100850, China.
| | - Liang Xu
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, 27 Taiping Road, Beijing 100850, China.
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5
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Riccardi C, Russo Krauss I, Musumeci D, Morvan F, Meyer A, Vasseur JJ, Paduano L, Montesarchio D. Fluorescent Thrombin Binding Aptamer-Tagged Nanoparticles for an Efficient and Reversible Control of Thrombin Activity. ACS APPLIED MATERIALS & INTERFACES 2017; 9:35574-35587. [PMID: 28849915 DOI: 10.1021/acsami.7b11195] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Progress in understanding and treatment of thrombotic diseases requires new effective methods for the easy, rapid, and reversible control of coagulation processes. In this framework, the use of aptamers, and particularly of the thrombin binding aptamer (TBA), has aroused strong interest, due to its enormous therapeutic potential, associated with a large number of possible applications in biotechnological and bioanalytical fields. Here, we describe a new TBA analogue (named tris-mTBA), carrying three different pendant groups: a dansyl residue at the 3'- and a β-cyclodextrin moiety at the 5'-end-providing a host-guest system which exhibits a marked fluorescence enhancement upon TBA G-quadruplex folding-and a biotin tag, allowing the attachment of the aptamer onto biocompatible streptavidin-coated silica nanoparticles (NPs) of 50 nm hydrodynamic diameter (Sicastar). The use of nanoparticles for the in vivo delivery of TBA, expected to induce per se increased nuclease resistance and improved pharmacokinetic properties of this oligonucleotide, offers as an additional advantage the possibility to exploit multivalency effects, due to the presence of multiple copies of TBA on a single scaffold. In addition, the selected fluorescent system allows monitoring both the presence of TBA on the functionalized NPs and its correct folding upon immobilization, also conferring enhanced enzymatic resistance and bioactivity. The anticoagulant activity of the new tris-mTBA, free or conjugated to Sicastar NPs, was evaluated by dynamic light scattering experiments. Highly effective and reversible inhibition of thrombin activity toward fibrinogen was found for the free tris-mTBA and especially for the tris-mTBA-conjugated NPs, demonstrating great potential for the biomedical control of blood clotting.
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Affiliation(s)
- Claudia Riccardi
- Department of Chemical Sciences, University of Naples Federico II , Via Cintia 21, I-80126, Napoli, Italy
| | - Irene Russo Krauss
- Department of Chemical Sciences, University of Naples Federico II , Via Cintia 21, I-80126, Napoli, Italy
- CSGI - Consorzio Interuniversitario per lo Sviluppo dei Sistemi a Grande Interfase , Via della Lastruccia 3, I-50019, Sesto Fiorentino, Italy
| | - Domenica Musumeci
- Department of Chemical Sciences, University of Naples Federico II , Via Cintia 21, I-80126, Napoli, Italy
- Institute of Biostructures and Bioimages, CNR , Via Mezzocannone 16, I-80134 Napoli, Italy
| | - François Morvan
- Institut des Biomolécules Max Mousseron, UMR 5247, Université Montpellier, CNRS, ENSCM, University of Montpellier , place E. Bataillon, 34095 Montpellier Cedex 5, France
| | - Albert Meyer
- Institut des Biomolécules Max Mousseron, UMR 5247, Université Montpellier, CNRS, ENSCM, University of Montpellier , place E. Bataillon, 34095 Montpellier Cedex 5, France
| | - Jean-Jacques Vasseur
- Institut des Biomolécules Max Mousseron, UMR 5247, Université Montpellier, CNRS, ENSCM, University of Montpellier , place E. Bataillon, 34095 Montpellier Cedex 5, France
| | - Luigi Paduano
- Department of Chemical Sciences, University of Naples Federico II , Via Cintia 21, I-80126, Napoli, Italy
- CSGI - Consorzio Interuniversitario per lo Sviluppo dei Sistemi a Grande Interfase , Via della Lastruccia 3, I-50019, Sesto Fiorentino, Italy
| | - Daniela Montesarchio
- Department of Chemical Sciences, University of Naples Federico II , Via Cintia 21, I-80126, Napoli, Italy
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Musumeci D, Riccardi C, Montesarchio D. G-Quadruplex Forming Oligonucleotides as Anti-HIV Agents. Molecules 2015; 20:17511-32. [PMID: 26402662 PMCID: PMC6332060 DOI: 10.3390/molecules200917511] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 09/10/2015] [Accepted: 09/16/2015] [Indexed: 12/21/2022] Open
Abstract
Though a variety of different non-canonical nucleic acids conformations have been recognized, G-quadruplex structures are probably the structural motifs most commonly found within known oligonucleotide-based aptamers. This could be ascribed to several factors, as their large conformational diversity, marked responsiveness of their folding/unfolding processes to external stimuli, high structural compactness and chemo-enzymatic and thermodynamic stability. A number of G-quadruplex-forming oligonucleotides having relevant in vitro anti-HIV activity have been discovered in the last two decades through either SELEX or rational design approaches. Improved aptamers have been obtained by chemical modifications of natural oligonucleotides, as terminal conjugations with large hydrophobic groups, replacement of phosphodiester linkages with phosphorothioate bonds or other surrogates, insertion of base-modified monomers, etc. In turn, detailed structural studies have elucidated the peculiar architectures adopted by many G-quadruplex-based aptamers and provided insight into their mechanism of action. An overview of the state-of-the-art knowledge of the relevance of putative G-quadruplex forming sequences within the viral genome and of the most studied G-quadruplex-forming aptamers, selectively targeting HIV proteins, is here presented.
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Affiliation(s)
- Domenica Musumeci
- Department of Chemical Sciences, University of Napoli Federico II, via Cintia 21, Napoli I-80126, Italy.
| | - Claudia Riccardi
- Department of Chemical Sciences, University of Napoli Federico II, via Cintia 21, Napoli I-80126, Italy.
| | - Daniela Montesarchio
- Department of Chemical Sciences, University of Napoli Federico II, via Cintia 21, Napoli I-80126, Italy.
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7
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Roviello GN, Musumeci D, Roviello V. Cationic peptides as RNA compaction agents: a study on the polyA compaction activity of a linear alpha,epsilon-oligo-L-lysine. Int J Pharm 2015; 485:244-8. [PMID: 25772417 DOI: 10.1016/j.ijpharm.2015.03.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Revised: 03/05/2015] [Accepted: 03/09/2015] [Indexed: 11/16/2022]
Abstract
In this work, we investigate the compaction activity of a sequential alpha,epsilon-peptide composed of l-lysines towards two RNA targets, in view of its possible pharmaceutical application in RNA-targeting and RNA delivery. The basic oligolysine, object of the present study, proved not only to be efficient in compacting the single-stranded polyA RNA, but also to strongly interact with the polyA·polyU complex, as evidenced by CD-binding and UV-melting experiments. In particular, the marked differences in the CD spectra of the RNA targets upon addition of the peptide, as well as the different UV melting behaviour for the polyA·polyU complex in the presence and absence of the peptide, sustain the hypothesis of a strong RNA compaction capacity of the alpha,epsilon-oligolysine. Finally, by using HPLC analysis, we found a good resistance of the peptide against the lytic action of human serum, an important requirement in view of in vitro/in vivo biological assays.
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Affiliation(s)
- Giovanni N Roviello
- Istituto di Biostrutture e Bioimmagini - CNR, via Mezzocannone 16, 80134 Napoli, Italy.
| | - Domenica Musumeci
- Istituto di Biostrutture e Bioimmagini - CNR, via Mezzocannone 16, 80134 Napoli, Italy; Dipartimento di Scienze Chimiche, Università di Napoli "Federico II", 80126 Napoli, Italy
| | - Valentina Roviello
- Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale(DICMaPI), Università di Napoli "Federico II", 80125 Napoli, Italy
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8
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Musumeci D, Irace C, Santamaria R, Milano D, Tecilla P, Montesarchio D. Guanine-based amphiphiles: synthesis, ion transport properties and biological activity. Bioorg Med Chem 2015; 23:1149-56. [DOI: 10.1016/j.bmc.2014.12.055] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Revised: 12/18/2014] [Accepted: 12/22/2014] [Indexed: 12/17/2022]
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9
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Temme JS, Drzyzga MG, MacPherson IS, Krauss IJ. Directed evolution of 2G12-targeted nonamannose glycoclusters by SELMA. Chemistry 2013; 19:17291-5. [PMID: 24227340 DOI: 10.1002/chem.201303848] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Indexed: 11/11/2022]
Affiliation(s)
- J Sebastian Temme
- Department of Chemistry, Brandeis University, 415 South St., Waltham, MA 02454 (USA)
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10
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Guzaev AP. Solid-phase supports for oligonucleotide synthesis. CURRENT PROTOCOLS IN NUCLEIC ACID CHEMISTRY 2013; Chapter 3:3.1.1-3.1.60. [PMID: 23775808 DOI: 10.1002/0471142700.nc0301s53] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
This unit attempts to provide a reasonably complete inventory of over 280 solid supports available to oligonucleotide chemists for preparation of natural and 3'-modified oligonucleotides. Emphasis is placed on non-nucleosidic solid supports. The relationship between the structural features of linkers and their behavior in oligonucleotide synthesis and deprotection is discussed wherever the relevant observations are available.
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11
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Morvan F, Vidal S, Souteyrand E, Chevolot Y, Vasseur JJ. DNA glycoclusters and DNA-based carbohydrate microarrays: From design to applications. RSC Adv 2012. [DOI: 10.1039/c2ra21550k] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
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12
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Kedracki D, Safir I, Gour N, Ngo KX, Vebert-Nardin C. DNA–Polymer Conjugates: From Synthesis, Through Complex Formation and Self-assembly to Applications. BIO-SYNTHETIC POLYMER CONJUGATES 2012. [DOI: 10.1007/12_2012_181] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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13
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Aviñó A, Ocampo SM, Lucas R, Reina JJ, Morales JC, Perales JC, Eritja R. Synthesis and in vitro inhibition properties of siRNA conjugates carrying glucose and galactose with different presentations. Mol Divers 2011; 15:751-7. [PMID: 21267652 DOI: 10.1007/s11030-011-9305-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2010] [Accepted: 01/05/2011] [Indexed: 10/18/2022]
Abstract
Oligoribonucleotide conjugates and the corresponding siRNA duplexes against tumor necrosis factor carrying one, two, or four glucose and galactose residues at the 5'-end have been prepared using phosphoramidite chemistry. Carbohydrate-modified siRNA duplexes have similar inhibitory properties than unmodified RNA duplexes in HeLa cells transfected with oligofectamine. When HeLa cells were treated with siRNA carrying one, two, or four glucose residues without oligofectamine, no inhibition was observed. The inhibitory properties of siRNA carrying galactose residues without transfecting agent were tested on HuH-7 cells that have abundant asialoglycoprotein receptors. In these cells siRNA carrying galactose residues have slight anti-TNF inhibitory properties (25% in the best case) that are eliminated if the receptors are blocked with a competitor. These results demonstrate receptor-mediated uptake of siRNA carrying galactose residues, although the efficacy of the process is not enough for efficient RNA interference experiments.
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Affiliation(s)
- Anna Aviñó
- Institute for Research in Biomedicine (IRB Barcelona), Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), Networking Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Baldiri Reixac 10, 08028 Barcelona, Spain
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14
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Coppola C, Virno A, De Napoli L, Randazzo A, Montesarchio D. Synthesis and conformational analysis of a novel carbohydrate-fused bis-crown ether: crown-CyPLOS. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.09.100] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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15
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Lönnberg H. Solid-phase synthesis of oligonucleotide conjugates useful for delivery and targeting of potential nucleic acid therapeutics. Bioconjug Chem 2009; 20:1065-94. [PMID: 19175328 DOI: 10.1021/bc800406a] [Citation(s) in RCA: 129] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Olignucleotide-based drugs show promise as a novel form of chemotherapy. Among the hurdles that have to be overcome on the way of applicable nucleic acid therapeutics, inefficient cellular uptake and subsequent release from endosomes to cytoplasm appear to be the most severe ones. Covalent conjugation of oligonucleotides to molecules that expectedly facilitate the internalization, targets the conjugate to a specific cell-type or improves the parmacokinetics offers a possible way to combat against these shortcomings. Since workable chemistry is a prerequisite for biological studies, development of efficient and reproducible methods for preparation of various types of oligonucleotide conjugates has become a subject of considerable importance. The present review summarizes the advances made in the solid-supported synthesis of oligonucleotide conjugates aimed at facilitating the delivery and targeting of nucleic acid drugs.
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Affiliation(s)
- Harri Lönnberg
- Department of Chemistry, University of Turku, FIN-20014 Turku, Finland.
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16
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D'Onofrio J, Erra E, Di Fabio G, Iadonisi A, Petraccone L, De Napoli L, Barone G, Balzarini J, Giancola C, Montesarchio D. Synthesis and biophysical characterization of G-rich oligonucleotides conjugated with sugar-phosphate tails. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2008; 26:1225-9. [PMID: 18066757 DOI: 10.1080/15257770701528164] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
A number of 5'-and 3'-glycoconjugates of the oligonucleotide (5')d(TGGGAG)(3') have been synthesized, exploiting fully automated, online phosphoramidite-based solid phase strategy, as potential anti-HIV-1 agents. The thermodynamic stability of the resulting quadruplexes has been investigated by thermal denaturation studies, via a detailed CD Q1 analysis.
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Affiliation(s)
- J D'Onofrio
- Dipartimento di Chimica Organica e Biochimica, Università degli Studi di Napoli Federico II, Via Cintia 4, I-80126 Naples, Italy
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17
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Sánchez-Roselló M, Puchlopek ALA, Morgan AJ, Miller SJ. Site-selective catalysis of phenyl thionoformate transfer as a tool for regioselective deoxygenation of polyols. J Org Chem 2008; 73:1774-82. [PMID: 18229939 PMCID: PMC4189089 DOI: 10.1021/jo702334z] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report the application of peptide-embedded imidazoles as catalysts for the site-selective delivery of the phenyl thionoformate unit as a prelude to deoxygenation reactions of polyols. Methodology was developed that allows for the synthesis of thiocarbonyl derivatives based on a combination of additives that include N-alkylimidazoles and FeCl3 as co-catalysts. The use of this reagent combination leads to increased reaction rates and efficient yields relative to those of simple base-mediated reactions. In terms of controlling regioselectivity during the course of polyol modification, we found that histidine-containing peptides, in combination with FeCl3, could lead to modulation of the product distribution. Through screening of peptides and control of reaction conditions, products could be observed that reflected both the inherent preference of substrates and also reversal of inherent selectivity.
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Affiliation(s)
| | | | - Adam J. Morgan
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA 02467
| | - Scott J. Miller
- Department of Chemistry, Yale University, P.O. Box 208107, New Haven, CT 06520-8107
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA 02467
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18
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Coppola C, Saggiomo V, Di Fabio G, De Napoli L, Montesarchio D. Novel Amphiphilic Cyclic Oligosaccharides: Synthesis and Self-Aggregation Properties. J Org Chem 2007; 72:9679-89. [DOI: 10.1021/jo7017087] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Cinzia Coppola
- Dipartimento di Chimica Organica e Biochimica, and Facolta' di Scienze Biotecnologiche, Università “Federico II” di Napoli, Complesso Universitario di Monte S. Angelo, via Cintia, 4, I-80126 Napoli, Italy
| | - Vittorio Saggiomo
- Dipartimento di Chimica Organica e Biochimica, and Facolta' di Scienze Biotecnologiche, Università “Federico II” di Napoli, Complesso Universitario di Monte S. Angelo, via Cintia, 4, I-80126 Napoli, Italy
| | - Giovanni Di Fabio
- Dipartimento di Chimica Organica e Biochimica, and Facolta' di Scienze Biotecnologiche, Università “Federico II” di Napoli, Complesso Universitario di Monte S. Angelo, via Cintia, 4, I-80126 Napoli, Italy
| | - Lorenzo De Napoli
- Dipartimento di Chimica Organica e Biochimica, and Facolta' di Scienze Biotecnologiche, Università “Federico II” di Napoli, Complesso Universitario di Monte S. Angelo, via Cintia, 4, I-80126 Napoli, Italy
| | - Daniela Montesarchio
- Dipartimento di Chimica Organica e Biochimica, and Facolta' di Scienze Biotecnologiche, Università “Federico II” di Napoli, Complesso Universitario di Monte S. Angelo, via Cintia, 4, I-80126 Napoli, Italy
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Yan H, Tram K. Glycotargeting to improve cellular delivery efficiency of nucleic acids. Glycoconj J 2007; 24:107-23. [PMID: 17268860 DOI: 10.1007/s10719-006-9023-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2006] [Revised: 11/07/2006] [Accepted: 11/14/2006] [Indexed: 10/23/2022]
Abstract
Nucleic acids bearing glycans of various structures have been under vigorous investigation in the past decade. The carbohydrate moieties of such complexes can serve as recognition sites for carbohydrate-binding proteins-lectins-and initiate receptor-mediated endocytosis. Therefore, carbohydrates can enhance cell targeting and internalization of nucleic acids that are associated with them and thus improve the bioavailability of nucleic acids as therapeutic agents. This review summarizes nucleic acid glycosylation in nature and approaches for the preparation of both non-covalently associated and covalently-linked carbohydrate-nucleic acid complexes.
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Affiliation(s)
- Hongbin Yan
- Department of Chemistry, Brock University, 500 Glenridge Ave., St. Catharines, ON, Canada.
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20
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Singh Y, Spinelli N, Defrancq E, Dumy P. A novel heterobifunctional linker for facile access to bioconjugates. Org Biomol Chem 2006; 4:1413-9. [PMID: 16557331 DOI: 10.1039/b518151h] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A convenient synthesis of a novel heterobifunctional linker molecule is described. The linker contains a thiol-reactive nitropyridyl disulfide group (Npys) and an aldehyde-reactive aminooxy group with a propensity to form disulfide and oxime linkages. The utility of the linker molecule to cross-link different biomolecules has been demonstrated by employing it in the efficient preparation of a peptide-oligonucleotide conjugate. The linker reported herein could be a useful tool for cross-coupling of different but appropriately functionalised biomolecules.
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Affiliation(s)
- Yashveer Singh
- LEDSS, UMR CNRS 5616, ICMG FR 2607, Université Joseph Fourier, 301 rue de la Chimie, BP 53, F 38041, Grenoble Cedex 9, France
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