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Cunha A, Gaubert A, Verget J, Thiolat ML, Barthélémy P, Latxague L, Dehay B. Trehalose-Based Nucleolipids as Nanocarriers for Autophagy Modulation: An In Vitro Study. Pharmaceutics 2022; 14:857. [PMID: 35456691 PMCID: PMC9026460 DOI: 10.3390/pharmaceutics14040857] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 04/08/2022] [Indexed: 01/03/2023] Open
Abstract
The Autophagy Lysosomal Pathway is one of the most important mechanisms for removing dysfunctional cellular components. Increasing evidence suggests that alterations in this pathway play a pathogenic role in Parkinson's disease, making it a point of particular vulnerability. Numerous studies have proposed nanotechnologies as a promising approach for delivering active substances within the central nervous system to treat and diagnose neurodegenerative diseases. In this context, the aim was to propose the development of a new pharmaceutical technology for the treatment of neurodegenerative diseases. We designed a trehalose-based nanosystem by combining both a small natural autophagy enhancer molecule named trehalose and an amphiphilic nucleolipid conjugate. To improve nucleolipid protection and cellular uptake, these conjugates were formulated by rapid mixing in either solid lipid nanoparticles (Ø = 120.4 ± 1.4 nm) or incorporated into poly(lactic-co-glycolic acid) nanoparticles (Ø = 167.2 ± 2.4 nm). In vitro biological assays demonstrated a safe and an efficient cellular uptake associated with autophagy induction. Overall, these nucleolipid-based formulations represent a promising new pharmaceutical tool to deliver trehalose and restore the autophagy impaired function.
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Affiliation(s)
- Anthony Cunha
- Univ. Bordeaux, INSERM U1212, CNRS UMR 5320, ARNA, ARN: Régulations Naturelle et Artificielle, ChemBioPharm, 146 rue Léo Saignat, F-33076 Bordeaux, France; (A.C.); (A.G.); (J.V.); (P.B.); (L.L.)
- Univ. Bordeaux, CNRS, IMN, UMR 5293, F-33000 Bordeaux, France;
| | - Alexandra Gaubert
- Univ. Bordeaux, INSERM U1212, CNRS UMR 5320, ARNA, ARN: Régulations Naturelle et Artificielle, ChemBioPharm, 146 rue Léo Saignat, F-33076 Bordeaux, France; (A.C.); (A.G.); (J.V.); (P.B.); (L.L.)
| | - Julien Verget
- Univ. Bordeaux, INSERM U1212, CNRS UMR 5320, ARNA, ARN: Régulations Naturelle et Artificielle, ChemBioPharm, 146 rue Léo Saignat, F-33076 Bordeaux, France; (A.C.); (A.G.); (J.V.); (P.B.); (L.L.)
| | | | - Philippe Barthélémy
- Univ. Bordeaux, INSERM U1212, CNRS UMR 5320, ARNA, ARN: Régulations Naturelle et Artificielle, ChemBioPharm, 146 rue Léo Saignat, F-33076 Bordeaux, France; (A.C.); (A.G.); (J.V.); (P.B.); (L.L.)
| | - Laurent Latxague
- Univ. Bordeaux, INSERM U1212, CNRS UMR 5320, ARNA, ARN: Régulations Naturelle et Artificielle, ChemBioPharm, 146 rue Léo Saignat, F-33076 Bordeaux, France; (A.C.); (A.G.); (J.V.); (P.B.); (L.L.)
| | - Benjamin Dehay
- Univ. Bordeaux, CNRS, IMN, UMR 5293, F-33000 Bordeaux, France;
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2
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Sun J, Vogel J, Chen L, Schleper AL, Bergner T, Kuehne AJC, von Delius M. Carbodiimide-Driven Dimerization and Self-Assembly of Artificial, Ribose-Based Amphiphiles. Chemistry 2022; 28:e202104116. [PMID: 35038189 PMCID: PMC9303926 DOI: 10.1002/chem.202104116] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Indexed: 12/20/2022]
Abstract
The aqueous self-assembly of amphiphiles into aggregates such as micelles and vesicles has been widely investigated over the past decades with applications ranging from materials science to drug delivery. The combination of characteristic properties of nucleic acids and amphiphiles is of substantial interest to mimic biological self-organization and compartmentalization. Herein, we present ribose- and ribonucleotide-based amphiphiles and investigate their self-assembly as well as their fundamental reactivity. We found that various types of aggregates are formed, ranging in size from nanometers to micrometers and all amphiphiles exhibit aggregation-induced emission (AIE) in solution as well as in the solid state. We also observed that the addition of 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDC) leads to rapid and selective dimerization of the amphiphiles into pyrophosphates, which decreases the critical aggregation concentration (CAC) by a factor of 25 when compared to the monomers. Since the propensity for amphiphile dimerization is correlated with their tendency to self-assemble, our results may be relevant for the formation of rudimentary compartments under prebiotic conditions.
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Affiliation(s)
- Jing Sun
- Institute of Organic ChemistryUlm UniversityAlbert-Einstein-Allee 1189081UlmGermany
| | - Julian Vogel
- Institute of Organic ChemistryUlm UniversityAlbert-Einstein-Allee 1189081UlmGermany
| | - Lisa Chen
- Institute of Macromolecular and Organic ChemistryUlm UniversityAlbert-Einstein-Allee 1189081UlmGermany
| | - A. Lennart Schleper
- Institute of Macromolecular and Organic ChemistryUlm UniversityAlbert-Einstein-Allee 1189081UlmGermany
| | - Tim Bergner
- Central Facility for Electron MicroscopyUlm UniversityAlbert-Einstein-Allee 1189081UlmGermany
| | - Alexander J. C. Kuehne
- Institute of Macromolecular and Organic ChemistryUlm UniversityAlbert-Einstein-Allee 1189081UlmGermany
- DWI – Leibniz-Institute for Interactive MaterialsForckenbeckstraße 5052074AachenGermany
| | - Max von Delius
- Institute of Organic ChemistryUlm UniversityAlbert-Einstein-Allee 1189081UlmGermany
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3
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Walunj MB, Srivatsan SG. Heterocycle-modified 2'-Deoxyguanosine Nucleolipid Analogs Stabilize Guanosine Gels and Self-assemble to Form Green Fluorescent Gels. Chem Asian J 2021; 17:e202101163. [PMID: 34817121 DOI: 10.1002/asia.202101163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 11/22/2021] [Indexed: 11/08/2022]
Abstract
Nucleoside-lipid conjugates are very useful supramolecular building blocks to construct self-assembled architectures suited for biomedical and material applications. Such nucleoside derivatives can be further synthetically manipulated to endow additional functionalities that could augment the assembling process and impart interesting properties. Here, we report the design, synthesis and self-assembling process of multifunctional supramolecular nucleolipid synthons containing an environment-sensitive fluorescent guanine. The amphiphilic synthons are composed of an 8-(2-(benzofuran-2-yl)vinyl)-guanine core and alkyl chains attached to 3'-O and 5'-O-positions of 2'-deoxyguanosine. The 2-(benzofuran-2-yl)vinyl (BFV) moiety attached at the C8 position of the nucleobase adopted a syn conformation about the glycosidic bond, which facilitated the self-assembly process through the formation of a G-tetrad as the basic unit. While 3',5'-diacylated BFV-modified dG analog stabilized the guanosine hydrogel by hampering the crystallization process and imparted fluorescence, BFV-modified dGs containing longer alkyl chains formed a green fluorescent organogel, which transformed into a yellow fluorescent gel in the presence of a complementary non-fluorescent cytidine nucleolipid. The ability of the dG analog containing short alkyl chains to modulate the mechanical property of a gel, and interesting fluorescence properties and self-assembling behavior exhibited by the dG analogs containing long alkyl chains in response to heat and complementary base underscore the potential use of these new supramolecular synthons in material applications.
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Affiliation(s)
- Manisha B Walunj
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Seergazhi G Srivatsan
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune, Dr. Homi Bhabha Road, Pune, 411008, India
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4
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Scognamiglio PL, Platella C, Napolitano E, Musumeci D, Roviello GN. From Prebiotic Chemistry to Supramolecular Biomedical Materials: Exploring the Properties of Self-Assembling Nucleobase-Containing Peptides. Molecules 2021; 26:3558. [PMID: 34200901 PMCID: PMC8230524 DOI: 10.3390/molecules26123558] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 05/27/2021] [Accepted: 05/28/2021] [Indexed: 12/24/2022] Open
Abstract
Peptides and their synthetic analogs are a class of molecules with enormous relevance as therapeutics for their ability to interact with biomacromolecules like nucleic acids and proteins, potentially interfering with biological pathways often involved in the onset and progression of pathologies of high social impact. Nucleobase-bearing peptides (nucleopeptides) and pseudopeptides (PNAs) offer further interesting possibilities related to their nucleobase-decorated nature for diagnostic and therapeutic applications, thanks to their reported ability to target complementary DNA and RNA strands. In addition, these chimeric compounds are endowed with intriguing self-assembling properties, which are at the heart of their investigation as self-replicating materials in prebiotic chemistry, as well as their application as constituents of innovative drug delivery systems and, more generally, as novel nanomaterials to be employed in biomedicine. Herein we describe the properties of nucleopeptides, PNAs and related supramolecular systems, and summarize some of the most relevant applications of these systems.
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Affiliation(s)
| | - Chiara Platella
- Department of Chemical Sciences, University of Naples Federico II, via Cintia 21, I-80126 Naples, Italy; (C.P.); (E.N.); (D.M.)
| | - Ettore Napolitano
- Department of Chemical Sciences, University of Naples Federico II, via Cintia 21, I-80126 Naples, Italy; (C.P.); (E.N.); (D.M.)
| | - Domenica Musumeci
- Department of Chemical Sciences, University of Naples Federico II, via Cintia 21, I-80126 Naples, Italy; (C.P.); (E.N.); (D.M.)
- Istituto di Biostrutture e Bioimmagini IBB-CNR, via Tommaso De Amicis 95, I-80145 Naples, Italy
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5
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Zhang Y, He Y, Wojtas L, Shi X, Guo H. Construction of Supramolecular Organogel with Circularly Polarized Luminescence by Self-Assembled Guanosine Octamer. CELL REPORTS. PHYSICAL SCIENCE 2020; 1:100211. [PMID: 33179016 PMCID: PMC7654816 DOI: 10.1016/j.xcrp.2020.100211] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Gel formation using guanosine self-assembly is an important process in supramolecular chemistry. Here, we report the stepwise construction of circularly polarized luminescent supramolecular organogels from self-assembled guanosine quadruplexes. A lipophilic guanosine derivative (aldG) is designed and synthesized for the formation of a well-defined G8-octamer. The diamine linkers are used to connect G8-octamer units by imine formation to facilitate the construction of the supramolecular gel networks. 1H NMR experiments show that the pre-assembled aldG8-octamer remains intact and is crucial for transparent and stiff organogel formation. With extended conjugation, the aldG organogels exhibit strong green fluorescence emission and circularly polarized properties without the assistance of any external fluorescent dyes, suggesting an alternative approach to construct molecular probes for biological and material applications.
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Affiliation(s)
- Yanbin Zhang
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, PR China
- These authors contributed equally
| | - Ying He
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue, Tampa, FL 33620, USA
- These authors contributed equally
| | - Lukasz Wojtas
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue, Tampa, FL 33620, USA
| | - Xiaodong Shi
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue, Tampa, FL 33620, USA
- Lead Contact
| | - Hao Guo
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, PR China
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6
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Das M, Du Y, Mortensen JS, Ramos M, Ghani L, Lee HJ, Bae HE, Byrne B, Guan L, Loland CJ, Kobilka BK, Chae PS. Trehalose-cored amphiphiles for membrane protein stabilization: importance of the detergent micelle size in GPCR stability. Org Biomol Chem 2019; 17:3249-3257. [PMID: 30843907 DOI: 10.1039/c8ob03153c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Despite their importance in biology and medicinal chemistry, structural and functional studies of membrane proteins present major challenges. To study diverse membrane proteins, it is crucial to have the correct detergent to efficiently extract and stabilize the proteins from the native membranes for biochemical/biophysical downstream analyses. But many membrane proteins, particularly eukaryotic ones, are recalcitrant to stabilization and/or crystallization with currently available detergents and thus there are major efforts to develop novel detergents with enhanced properties. Here, a novel class of trehalose-cored amphiphiles are introduced, with multiple alkyl chains and carbohydrates projecting from the trehalose core unit are introduced. A few members displayed enhanced protein stabilization behavior compared to the benchmark conventional detergent, n-dodecyl-β-d-maltoside (DDM), for multiple tested membrane proteins: (i) a bacterial leucine transporter (LeuT), (ii) the R. capsulatus photosynthetic superassembly, and (iii) the human β2 adrenergic receptor (β2AR). Due to synthetic convenience and their favourable behaviors for a range of membrane proteins, these agents have potential for membrane protein research. In addition, the detergent property-efficacy relationship discussed here will guide future design of novel detergents.
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Affiliation(s)
- Manabendra Das
- Department of Bionanotechnology, Hanyang University, Ansan, 155-88, Korea.
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7
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Li J, Wei H, Peng Y, Geng L, Zhu L, Cao XY, Liu CS, Pang H. A multifunctional self-healing G-PyB/KCl hydrogel: smart conductive, rapid room-temperature phase-selective gelation, and ultrasensitive detection of alpha-fetoprotein. Chem Commun (Camb) 2019; 55:7922-7925. [PMID: 31215917 DOI: 10.1039/c9cc02770j] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A multifunctional G-PyB/KCl hydrogel showed outstanding self-healability, high conductivity, and rapid room-temperature phase-selective gelation capacity, and was developed as an electrochemical aptamer sensing platform for the ultrasensitive detection of alpha-fetoprotein.
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Affiliation(s)
- Jingjing Li
- School of Chemistry, Chemical and Environmental Engineering, Henan University of Technology, Zhengzhou, Henan 450001, China
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8
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Nuthanakanti A. Cytidine and ribothymidine nucleolipids synthesis, organogelation, and selective anion and metal ion responsiveness. NEW J CHEM 2019. [DOI: 10.1039/c9nj03276b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Nucleolipids of 2′,3′-O-diacylatedribothymidine supports the organogelation by utilizing inherent self-base pairing and solvent mediated bifurcated H-bonding and hydrophobic effect. These organogels exhibits unusual Hg2+ mediated base pairing.
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Affiliation(s)
- Ashok Nuthanakanti
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER) Pune
- Pune 411008
- India
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9
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Riccardi C, Musumeci D, Russo Krauss I, Piccolo M, Irace C, Paduano L, Montesarchio D. Exploring the conformational behaviour and aggregation properties of lipid-conjugated AS1411 aptamers. Int J Biol Macromol 2018; 118:1384-1399. [PMID: 30170359 DOI: 10.1016/j.ijbiomac.2018.06.137] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 06/23/2018] [Accepted: 06/26/2018] [Indexed: 12/19/2022]
Abstract
AS1411 is a nucleolin-binding aptamer which attracted great interest as active targeting ligand for the selective delivery of therapeutic agents to tumour cells. In this work we selected three AS1411 derivatives 5'-conjugated with lipophilic tails and studied their properties in view of their application in liposomial formulations and/or lipid coated-nanoparticles for targeted therapies. The conformational behaviour of these AS1411 analogs has been investigated in comparison with the unmodified aptamer by CD, UV, PAGE, SEC-HPLC, DLS and thioflavin T (ThT) fluorescence assays to get insight in their secondary structure and aggregation properties. This study has been performed in pseudo-physiological buffers mimicking the extra- and intracellular environments, and at different concentrations in the μM range, paying special attention to the effects of the lipophilic tail on the overall aptamer conformation. The 5'-lipidated AS1411 derivatives proved to fold into stable, parallel unimolecular G-quadruplex structures, forming large aggregates, mainly micelles, at conc. >10 μM. Preliminary bioscreenings on selected cancer cells showed that these derivatives are less cytotoxic than AS1411, but maintain a similar biological behaviour. This study demonstrated that lipophilic tails dramatically favour the formation of AS1411 aggregates, however not impairing the formation and thermal stability of its peculiar G4 motifs.
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Affiliation(s)
- Claudia Riccardi
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 21, I-80126 Napoli, 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
| | - 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 (Fi), Italy
| | - Marialuisa Piccolo
- Department of Pharmacy, School of Medicine and Surgery, University of Napoli Federico II, Via D. Montesano 49, 80131 Napoli, Italy
| | - Carlo Irace
- Department of Pharmacy, School of Medicine and Surgery, University of Napoli Federico II, Via D. Montesano 49, 80131 Napoli, Italy
| | - 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 (Fi), Italy
| | - Daniela Montesarchio
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 21, I-80126 Napoli, Italy; Institute for Endocrinology and Oncology "Gaetano Salvatore", CNR, Via Pansini 5, 80131 Napoli, Italy.
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10
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Alies B, Ouelhazi MA, Patwa A, Verget J, Navailles L, Desvergnes V, Barthélémy P. Cytidine- and guanosine-based nucleotide–lipids. Org Biomol Chem 2018; 16:4888-4894. [DOI: 10.1039/c8ob01023d] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A nucleotide–lipids family featuring the four natural nucleobases was explored through their self-assembly properties.
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Affiliation(s)
| | | | | | | | - Laurence Navailles
- Université de Bordeaux
- Bordeaux
- France
- Centre de Recherche Paul Pascal UPR8641
- France
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11
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Vitiello G, Musumeci D, Koutsioubas A, Paduano L, Montesarchio D, D'Errico G. Ionophores at work: Exploring the interaction of guanosine-based amphiphiles with phospholipid membranes. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2017; 1859:2392-2401. [DOI: 10.1016/j.bbamem.2017.09.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Revised: 08/31/2017] [Accepted: 09/05/2017] [Indexed: 01/21/2023]
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12
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Liu J, Barrio JR, Satyamurthy N. Efficient synthesis of 9-(4-[18F]fluoro-3-hydroxymethylbutyl)guanine ([18F]FHBG) and 9-[(3-[18F]fluoro-1-hydroxy-2-propoxy)methyl]guanine ([18F]FHPG). J Fluor Chem 2017. [DOI: 10.1016/j.jfluchem.2017.08.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Rana N, Cultrara C, Phillips M, Sabatino D. Functionalization of peptide nucleolipid bioconjugates and their structure anti-cancer activity relationship studies. Bioorg Med Chem Lett 2017; 27:4019-4023. [PMID: 28789897 DOI: 10.1016/j.bmcl.2017.07.056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 07/13/2017] [Accepted: 07/21/2017] [Indexed: 11/15/2022]
Abstract
In the search for more potent peptide-based anti-cancer conjugates the generation of new, functionally diverse nucleolipid derived D-(KLAKLAK)2-AK sequences has enabled a structure and anti-cancer activity relationship study. A reductive amination approach was key for the synthesis of alkylamine, diamine and polyamine derived nucleolipids as well as those incorporating heterocyclic functionality. The carboxy-derived nucleolipids were then coupled to the C-terminus of the D-(KLAKLAK)2-AK killer peptide sequence and produced with and without the FITC fluorophore for investigating biological activity in cancer cells. The amphiphilic, α-helical peptide-nucleolipid bioconjugates were found to exhibit variable effects on the viability of MM.1S cells, with the histamine derived nucleolipid peptide bioconjugate displaying the most significant anti-cancer effects. Thus, functionally diverse nucleolipids have been developed to fine-tune the structure and anti-cancer properties of killer peptide sequences, such as D-(KLAKLAK)2-AK.
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Affiliation(s)
- Niki Rana
- Department of Chemistry and Biochemistry, Seton Hall University, 400 South Orange Avenue, South Orange, NJ 07079, United States
| | - Christopher Cultrara
- Department of Chemistry and Biochemistry, Seton Hall University, 400 South Orange Avenue, South Orange, NJ 07079, United States
| | - Mariana Phillips
- Department of Chemistry and Biochemistry, Seton Hall University, 400 South Orange Avenue, South Orange, NJ 07079, United States
| | - David Sabatino
- Department of Chemistry and Biochemistry, Seton Hall University, 400 South Orange Avenue, South Orange, NJ 07079, United States.
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14
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Wamberg MC, Pedersen PL, Löffler PMG, Albertsen AN, Maurer SE, Nielsen KA, Monnard PA. Synthesis of Lipophilic Guanine N-9 Derivatives: Membrane Anchoring of Nucleobases Tailored to Fatty Acid Vesicles. Bioconjug Chem 2017; 28:1893-1905. [PMID: 28587449 DOI: 10.1021/acs.bioconjchem.7b00228] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Covalent or noncovalent surface functionalization of soft-matter structures is an important tool for tailoring their function and stability. Functionalized surfaces and nanoparticles have found numerous applications in drug delivery and diagnostics, and new functionalization chemistry is continuously being developed in the discipline of bottom-up systems chemistry. The association of polar functional molecules, e.g., molecular recognition agents, with soft-matter structures can be achieved by derivatization with alkyl chains, allowing noncovalent anchoring into amphiphilic membranes. We report the synthesis of five new guanine-N9 derivatives bearing alkyl chains with different attachment chemistries, exploiting a synthesis pathway that allows a flexible choice of hydrophobic anchor moiety. In this study, these guanine derivatives were functionalized with C10 chains for insertion into decanoic acid bilayer structures, in which both alkyl chain length and attachment chemistry determined their interaction with the membrane. Incubation of these guanine conjugates, as solids, with a decanoic acid vesicle suspension, showed that ether- and triazole-linked C10 anchors yielded an increased partitioning of the guanine derivative into the membranous phase compared to directly N-9-linked saturated alkyl anchors. Decanoic acid vesicle membranes could be loaded with up to 5.5 mol % guanine derivative, a 6-fold increase over previous limits. Thus, anchor chemistries exhibiting favorable interactions with a bilayer's hydrophilic surface can significantly increase the degree of structure functionalization.
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Affiliation(s)
- Michael C Wamberg
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark , Campusvej 55, DK-5230 Odense, Denmark
| | - Pernille L Pedersen
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark , Campusvej 55, DK-5230 Odense, Denmark
| | - Philipp M G Löffler
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark , Campusvej 55, DK-5230 Odense, Denmark
| | - Anders N Albertsen
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark , Campusvej 55, DK-5230 Odense, Denmark
| | - Sarah E Maurer
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark , Campusvej 55, DK-5230 Odense, Denmark
| | - Kent A Nielsen
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark , Campusvej 55, DK-5230 Odense, Denmark
| | - Pierre-Alain Monnard
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark , Campusvej 55, DK-5230 Odense, Denmark
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15
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Jud L, Micura R. An Unconventional Acid-Labile Nucleobase Protection Concept for Guanosine Phosphoramidites in RNA Solid-Phase Synthesis. Chemistry 2017; 23:3406-3413. [PMID: 27943429 DOI: 10.1002/chem.201605056] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2016] [Indexed: 12/14/2022]
Abstract
We present an innovative O6 -tert-butyl/N2 -tert-butyloxycarbonyl protection concept for guanosine (G) phosphoramidites. This concept is advantageous for 2'-modified G building blocks because of very efficient synthetic access when compared with existing routes that usually employ O6 -(4-nitrophenyl)ethyl/N2 -acyl protection or that start from 2-aminoadenosine involving enzymatic transformation into guanosine later on in the synthetic path. The new phosphoramidites are fully compatible with 2'-O-tBDMS or TOM phosphoramidites in standard RNA solid-phase synthesis and deprotection, and provide excellent quality of tailored RNAs for the growing range of applications in RNA biophysics, biochemistry, and biology.
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Affiliation(s)
- Lukas Jud
- Institute of Organic Chemistry, Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria
| | - Ronald Micura
- Institute of Organic Chemistry, Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria
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16
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Huang Y, Li H, Li Z, Zhang Y, Cao W, Wang L, Liu S. Unusual C-I···O Halogen Bonding in Triazole Derivatives: Gelation Solvents at Two Extremes of Polarity and Formation of Superorganogels. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:311-321. [PMID: 27990822 DOI: 10.1021/acs.langmuir.6b03691] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
To investigate the influence of halogen bond (XB) on the gelation of a one-component organogel system, a new family of 5-iodo-1H-1,2,3-triazole and 1H-1,2,3-triazole gelators was designed and synthesized. The iodo gelators (1I, 3I) gelled various solvents at low concentrations and formed many superorganogels, whereas the hydrogenous gelators (1H, 3H) showed much poorer gelling performance. An X-ray analysis of the single crystals of two reference compounds (16I, 16H) reveals that the unusual C-I···O XB interaction is responsible for this difference. The results of spectroscopic examinations (XRD, SEM, 1H NMR, and UV) are well consistent with those of single-crystal analyses. Under the guidance of the XB interaction and the weak π-π interaction, 1I and 3I self-assemble to hexagonal columnar aggregations in the gel state, whereas 1H and 3H, driven by CH-π interactions, feature the formation of gels with a lamellar structure. The mechanical property of iodo gels is much better than that of hydrogenous gels under the same concentration. Gels from 1I respond to the stimuli of Hg2+, Cu2+, Zn2+, and Mg2+ as perchlorate salts, and gels from 1H are selectively responsive to Hg2+ solely.
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Affiliation(s)
- Yaodong Huang
- Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University , Tianjin 300350, PR China
| | - Huimin Li
- Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University , Tianjin 300350, PR China
| | - Ziyan Li
- Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University , Tianjin 300350, PR China
| | - Yan Zhang
- Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University , Tianjin 300350, PR China
| | - Wenwen Cao
- Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University , Tianjin 300350, PR China
| | - Luyuan Wang
- Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University , Tianjin 300350, PR China
| | - Shuxue Liu
- Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University , Tianjin 300350, PR China
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17
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Musumeci D, Roviello GN, Rigione G, Capasso D, Di Gaetano S, Riccardi C, Roviello V, Montesarchio D. Benzodifuran Derivatives as Potential Antiproliferative Agents: Possible Correlation between Their Bioactivity and Aggregation Properties. Chempluschem 2016; 82:251-260. [PMID: 31961558 DOI: 10.1002/cplu.201600547] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Indexed: 01/24/2023]
Abstract
To further explore the properties and bioactivity of benzodifurans, three compounds in this class were synthesised and characterised using spectroscopic and spectrometric techniques, as well as SEM and thermogravimetric analysis. The synthesised compounds showed interesting antiproliferative activity on different human cancer cells (HeLa, Hep-G2, WM266), whereas no relevant cytotoxic effect was observed on healthy control cells. To study the possible mechanism of action of the benzodifurans, their ability to bind various model DNA systems, their aggregation properties, and their ability to bind biologically relevant metal ions was evaluated. The molecules were found to form monodisperse nanoaggregates stable at physiological temperature, which are likely related to the observed bioactivity.
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Affiliation(s)
- Domenica Musumeci
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 21, 80126, Naples, Italy.,Institute of Biostructures and Bioimaging, CNR, Via Mezzocannone 16, 80134, Naples, Italy
| | - Giovanni N Roviello
- Institute of Biostructures and Bioimaging, CNR, Via Mezzocannone 16, 80134, Naples, Italy
| | - Giuseppina Rigione
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 21, 80126, Naples, Italy
| | - Domenica Capasso
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano 49, 80131, Naples, Italy
| | - Sonia Di Gaetano
- Institute of Biostructures and Bioimaging, CNR, Via Mezzocannone 16, 80134, Naples, Italy
| | - Claudia Riccardi
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 21, 80126, Naples, Italy
| | - Valentina Roviello
- Centro Regionale di Competenza (CRdC) Tecnologie, Via Nuova Agnano 11, 80125, Naples, Italy
| | - Daniela Montesarchio
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 21, 80126, Naples, Italy
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18
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Synthesis and biological evaluation of a novel Amadori compound. Amino Acids 2016; 49:327-335. [DOI: 10.1007/s00726-016-2363-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Accepted: 11/10/2016] [Indexed: 12/21/2022]
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19
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Roviello GN, Musumeci D. Synthetic approaches to nucleopeptides containing all four nucleobases, and nucleic acid-binding studies on a mixed-sequence nucleo-oligolysine. RSC Adv 2016; 6:63578-63585. [PMID: 28496969 PMCID: PMC5361140 DOI: 10.1039/c6ra08765e] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 06/27/2016] [Indexed: 11/21/2022] Open
Abstract
In this article we describe two solid-phase synthetic routes to obtain a nucleo-oligolysine α-peptide containing all four natural nucleobases.
In this article we describe two solid-phase synthetic routes to obtain a nucleo-oligolysine α-peptide containing all four natural nucleobases. The first one is based on the oligomerization of the nucleobase-containing monomers, easily synthesized as herein described. The second strategy has the advantage of avoiding the solution synthesis of the monomeric building blocks, leading to the final nucleopeptide by direct solid-phase couplings of the suitably protected nucleobases with the free amino groups on the growing peptide chain still anchored to the resin. Both strategies are general and can be applied to the synthesis of nucleopeptides having backbones formed by any other diamino acid moiety decorated with the four nucleobases. We also report the CD and UV studies on the hybridization properties of the obtained nucleopeptide, containing all four nucleobases on alternate lysines in the sequence, towards complementary DNA and RNA strands. The nucleo-oligolysine with a mixed-base sequence did not prove to bind complementary DNA, but was able to recognize the complementary RNA forming a complex with a higher melting temperature than that of the corresponding RNA/RNA natural duplex and comparable with that of the analogous PNA/RNA system.
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Affiliation(s)
- Giovanni N Roviello
- CNR , Istituto di Biostrutture e Bioimmagini , Via Mezzocannone 16 , 80134 Napoli , Italy . ; ; Tel: +39-81-2534585
| | - Domenica Musumeci
- CNR , Istituto di Biostrutture e Bioimmagini , Via Mezzocannone 16 , 80134 Napoli , Italy . ; ; Tel: +39-81-2534585.,Università di Napoli "Federico II" , Dipartimento di Scienze Chimiche , 80126 Napoli , Italy . ; Tel: +39-81-674143
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20
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Peters GM, Davis JT. Supramolecular gels made from nucleobase, nucleoside and nucleotide analogs. Chem Soc Rev 2016; 45:3188-206. [PMID: 27146863 DOI: 10.1039/c6cs00183a] [Citation(s) in RCA: 180] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Supramolecular or molecular gels are attractive for various applications, including diagnostics, tissue scaffolding and targeted drug release. Gelators derived from natural products are of particular interest for biomedical purposes, as they are generally biocompatible and stimuli-responsive. The building blocks of nucleic acids (i.e. nucleobases, nucleosides, and nucleotides) are desirable candidates for supramolecular gelation as they readily engage in reversible, noncovalent interactions. In this review, we describe a number of organo- and hydrogels formed through the assembly of nucleosides, nucleotides, and their derivatives. While natural nucleosides and nucleotides generally require derivatization to induce gelation, guanosine and its corresponding nucleotides are well known gelators. This unique gelating ability is due to propensity of the guanine nucleobase to self-associate into stable higher-order assemblies, such as G-ribbons, G4-quartets, and G-quadruplexes.
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Affiliation(s)
- Gretchen Marie Peters
- Department of Chemistry, The University of Texas at Austin, 105 E. 24th Street, Stop A5300, Austin, Texas 78712-1224, USA.
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21
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Kumar YP, Das RN, Schütte OM, Steinem C, Dash J. Bis-triazolyl diguanosine derivatives as synthetic transmembrane ion channels. Nat Protoc 2016; 11:1039-56. [DOI: 10.1038/nprot.2016.045] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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22
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Nuthanakanti A, Srivatsan SG. Hierarchical self-assembly of switchable nucleolipid supramolecular gels based on environmentally-sensitive fluorescent nucleoside analogs. NANOSCALE 2016; 8:3607-3619. [PMID: 26804191 DOI: 10.1039/c5nr07490h] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Exquisite recognition and folding properties have rendered nucleic acids as useful supramolecular synthons for the construction of programmable architectures. Despite their proven applications in nanotechnology, scalability and fabrication of nucleic acid nanostructures still remain a challenge. Here, we describe a novel design strategy to construct new supramolecular nucleolipid synthons by using environmentally-sensitive fluorescent nucleoside analogs, based on 5-(benzofuran-2-yl)uracil and 5-(benzo[b]thiophen-2-yl)uracil cores, as the head group and fatty acids, attached to the ribose sugar, as the lipophilic group. These modified nucleoside-lipid hybrids formed organogels driven by hierarchical structures such as fibers, twisted ribbons, helical ribbons and nanotubes, which depended on the nature of fatty acid chain and nucleobase modification. NMR, single crystal X-ray and powder X-ray diffraction studies revealed the coordinated interplay of various non-covalent interactions invoked by modified nucleobase, sugar and fatty acid chains in setting up the pathway for the gelation process. Importantly, these nucleolipid gels retained or displayed aggregation-induced enhanced emission and their gelation behavior and photophysical properties could be reversibly switched by external stimuli such as temperature, ultrasound and chemicals. Furthermore, the switchable nature of nucleolipid gels to chemical stimuli enabled the selective two channel recognition of fluoride and Hg(2+) ions through visual phase transition and fluorescence change. Fluorescent organogels exhibiting such a combination of useful features is rare, and hence, we expect that this innovative design of fluorescent nucleolipid supramolecular synthons could lead to the emergence of a new family of smart optical materials and probes.
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Affiliation(s)
- Ashok Nuthanakanti
- Department of Chemistry, Indian Institute of Science Education and Research, Pune, Dr. Homi Bhabha Road, Pashan, Pune 411008, India.
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23
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Roviello GN, Vicidomini C, Di Gaetano S, Capasso D, Musumeci D, Roviello V. Solid phase synthesis and RNA-binding activity of an arginine-containing nucleopeptide. RSC Adv 2016; 6:14140-14148. [PMID: 29057071 PMCID: PMC5635565 DOI: 10.1039/c5ra25809j] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Accepted: 01/15/2016] [Indexed: 01/22/2023] Open
Abstract
Here we report the solid phase synthesis and characterization (LC-ESIMS, CD) of a cationic nucleobase-containing α-peptide, composed of both l-arginine residues and l-lysine-based nucleoamino acids sequentially present in the structure. The binding properties of this novel basic nucleopeptide towards nucleic acids were investigated by CD spectroscopy which revealed the ability of the thymine-containing oligomer to bind both adenine-containing DNA (dA12) and RNA (poly rA) molecules inducing high conformational variations in the nucleic acid structures. Moreover, the artificial oligonucleotide inhibited the enzymatic activity of HIV reverse transcriptase, opening the door to the exploitation of novel antiviral strategies inspired to this molecular tool.
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Affiliation(s)
- G N Roviello
- CNR , Istituto di Biostrutture e Bioimmagini - (Mezzacannone site and Headquarters) , 80134 Napoli , Italy . ; ; Tel: +39-081-2534585
| | - C Vicidomini
- CNR , Istituto di Biostrutture e Bioimmagini - (Mezzacannone site and Headquarters) , 80134 Napoli , Italy . ; ; Tel: +39-081-2534585
| | - S Di Gaetano
- CNR , Istituto di Biostrutture e Bioimmagini - (Mezzacannone site and Headquarters) , 80134 Napoli , Italy . ; ; Tel: +39-081-2534585
| | - D Capasso
- Università di Napoli "Federico II" , Dipartimento di Farmacia , 80134 Napoli , Italy
| | - D Musumeci
- CNR , Istituto di Biostrutture e Bioimmagini - (Mezzacannone site and Headquarters) , 80134 Napoli , Italy . ; ; Tel: +39-081-2534585
- Università di Napoli "Federico II" , Dipartimento di Scienze Chimiche , 80126 Napoli , Italy
| | - V Roviello
- Università di Napoli "Federico II" , Dipartimento di Ingegneria Chimica , dei Materiali e della Produzione Industriale (DICMaPI) , 80125 Napoli , Italy
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24
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Abstract
This paper highlights recent developments in the design and construction of functional materials such as supramolecular hydrogels and ion channels using a guanine motif as a self-assembling building block.
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Affiliation(s)
- Jyotirmayee Dash
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700032, India.
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25
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Jud L, Košutić M, Schwarz V, Hartl M, Kreutz C, Bister K, Micura R. Expanding the Scope of 2'-SCF3 Modified RNA. Chemistry 2015; 21:10400-7. [PMID: 26074479 PMCID: PMC4515092 DOI: 10.1002/chem.201500415] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2015] [Indexed: 11/14/2022]
Abstract
The 2′-trifluoromethylthio (2′-SCF3) modification endows ribonucleic acids with exceptional properties and has attracted considerable interest as a reporter group for NMR spectroscopic applications. However, only modified pyrimidine nucleosides have been generated so far. Here, the syntheses of 2′-SCF3 adenosine and guanosine phosphoramidites of which the latter was obtained in highly efficient manner by an unconventional Boc-protecting group strategy, are reported. RNA solid-phase synthesis provided site-specifically 2′-SCF3-modified oligoribonucleotides that were investigated intensively. Their excellent behavior in 19F NMR spectroscopic probing of RNA ligand binding was exemplified for a noncovalent small molecule–RNA interaction. Moreover, comparably to the 2′-SCF3 pyrimidine nucleosides, the purine counterparts were also found to cause a significant thermodynamic destabilization when located in double helical regions. This property was considered beneficial for siRNA design under the aspect to minimize off-target effects and their performance in silencing of the BASP1 gene was demonstrated.
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Affiliation(s)
- Lukas Jud
- Institute of Organic Chemistry, Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80-82, 6020 Innsbruck (Austria)
| | - Marija Košutić
- Institute of Organic Chemistry, Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80-82, 6020 Innsbruck (Austria)
| | - Veronika Schwarz
- Institute of Organic Chemistry, Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80-82, 6020 Innsbruck (Austria)
| | - Markus Hartl
- Institute of Biochemistry, Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80-82, 6020 Innsbruck (Austria)
| | - Christoph Kreutz
- Institute of Organic Chemistry, Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80-82, 6020 Innsbruck (Austria)
| | - Klaus Bister
- Institute of Biochemistry, Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80-82, 6020 Innsbruck (Austria)
| | - Ronald Micura
- Institute of Organic Chemistry, Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80-82, 6020 Innsbruck (Austria).
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26
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Busschaert N, Caltagirone C, Van Rossom W, Gale PA. Applications of Supramolecular Anion Recognition. Chem Rev 2015; 115:8038-155. [PMID: 25996028 DOI: 10.1021/acs.chemrev.5b00099] [Citation(s) in RCA: 858] [Impact Index Per Article: 95.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
| | - Claudia Caltagirone
- ‡Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 Bivio per Sestu, 09042 Monserrato, Cagliari, Italy
| | - Wim Van Rossom
- †Chemistry, University of Southampton, Southampton SO17 1BJ, United Kingdom
| | - Philip A Gale
- †Chemistry, University of Southampton, Southampton SO17 1BJ, United Kingdom
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27
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Peters GM, Skala LP, Plank TN, Oh H, Manjunatha Reddy GN, Marsh A, Brown SP, Raghavan SR, Davis JT. G4-Quartet·M+ Borate Hydrogels. J Am Chem Soc 2015; 137:5819-27. [DOI: 10.1021/jacs.5b02753] [Citation(s) in RCA: 111] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Gretchen Marie Peters
- Department of Chemistry & Biochemistry and ‡Department of Chemical & Biomolecular Engineering, University of Maryland, College Park, Maryland 20742, United States
- Department of Physics and #Department of Chemistry, University of Warwick, Coventry CV4 7AL, U.K
| | - Luke P. Skala
- Department of Chemistry & Biochemistry and ‡Department of Chemical & Biomolecular Engineering, University of Maryland, College Park, Maryland 20742, United States
- Department of Physics and #Department of Chemistry, University of Warwick, Coventry CV4 7AL, U.K
| | - Taylor N. Plank
- Department of Chemistry & Biochemistry and ‡Department of Chemical & Biomolecular Engineering, University of Maryland, College Park, Maryland 20742, United States
- Department of Physics and #Department of Chemistry, University of Warwick, Coventry CV4 7AL, U.K
| | - Hyuntaek Oh
- Department of Chemistry & Biochemistry and ‡Department of Chemical & Biomolecular Engineering, University of Maryland, College Park, Maryland 20742, United States
- Department of Physics and #Department of Chemistry, University of Warwick, Coventry CV4 7AL, U.K
| | - G. N. Manjunatha Reddy
- Department of Chemistry & Biochemistry and ‡Department of Chemical & Biomolecular Engineering, University of Maryland, College Park, Maryland 20742, United States
- Department of Physics and #Department of Chemistry, University of Warwick, Coventry CV4 7AL, U.K
| | - Andrew Marsh
- Department of Chemistry & Biochemistry and ‡Department of Chemical & Biomolecular Engineering, University of Maryland, College Park, Maryland 20742, United States
- Department of Physics and #Department of Chemistry, University of Warwick, Coventry CV4 7AL, U.K
| | - Steven P. Brown
- Department of Chemistry & Biochemistry and ‡Department of Chemical & Biomolecular Engineering, University of Maryland, College Park, Maryland 20742, United States
- Department of Physics and #Department of Chemistry, University of Warwick, Coventry CV4 7AL, U.K
| | - Srinivasa R. Raghavan
- Department of Chemistry & Biochemistry and ‡Department of Chemical & Biomolecular Engineering, University of Maryland, College Park, Maryland 20742, United States
- Department of Physics and #Department of Chemistry, University of Warwick, Coventry CV4 7AL, U.K
| | - Jeffery T. Davis
- Department of Chemistry & Biochemistry and ‡Department of Chemical & Biomolecular Engineering, University of Maryland, College Park, Maryland 20742, United States
- Department of Physics and #Department of Chemistry, University of Warwick, Coventry CV4 7AL, U.K
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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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Thiophenyl-substituted triazolyl-thione l-alanine: asymmetric synthesis, aggregation and biological properties. Amino Acids 2014; 46:2325-32. [DOI: 10.1007/s00726-014-1782-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Accepted: 06/07/2014] [Indexed: 10/25/2022]
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30
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Iengo E, Cavigli P, Milano D, Tecilla P. Metal mediated self-assembled porphyrin metallacycles: Synthesis and multipurpose applications. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.02.018] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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31
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Skilling KJ, Citossi F, Bradshaw TD, Ashford M, Kellam B, Marlow M. Insights into low molecular mass organic gelators: a focus on drug delivery and tissue engineering applications. SOFT MATTER 2014; 10:237-56. [PMID: 24651822 DOI: 10.1039/c3sm52244j] [Citation(s) in RCA: 254] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
In recent years low molecular mass organic gelators (LMOGs) have gained increasing interest as an alternative biomaterial to polymer derived gels, with potential applications in drug delivery and tissue engineering. LMOGs are small organic molecules which self-assemble in water or organic solvents forming a 3D network that entraps the liquid phase resulting in gel formation. In this review, we report the classification of LMOGs into hydrogelators and gelators of organic solvents and we discuss the techniques commonly used to characterise the gels of these gelators with particular reference to specific applications of LMOGs in drug delivery and tissue engineering.
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Affiliation(s)
- Kathryn J Skilling
- School of Pharmacy, University of Nottingham, University Park, Nottingham, NG7 2RD, UK.
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Roviello GN, Roviello G, Musumeci D, Capasso D, Di Gaetano S, Costanzo M, Pedone C. Synthesis and supramolecular assembly of 1,3-bis(1′-uracilyl)-2-propanone. RSC Adv 2014. [DOI: 10.1039/c4ra03713h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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De Riccardis F, Izzo I, Montesarchio D, Tecilla P. Ion transport through lipid bilayers by synthetic ionophores: modulation of activity and selectivity. Acc Chem Res 2013; 46:2781-90. [PMID: 23534613 DOI: 10.1021/ar4000136] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The ion-coupled processes that occur in the plasma membrane regulate the cell machineries in all the living organisms. The details of the chemical events that allow ion transport in biological systems remain elusive. However, investigations of the structure and function of natural and artificial transporters has led to increasing insights about the conductance mechanisms. Since the publication of the first successful artificial system by Tabushi and co-workers in 1982, synthetic chemists have designed and constructed a variety of chemically diverse and effective low molecular weight ionophores. Despite their relative structural simplicity, ionophores must satisfy several requirements. They must partition in the membrane, interact specifically with ions, shield them from the hydrocarbon core of the phospholipid bilayer, and transport ions from one side of the membrane to the other. All these attributes require amphipathic molecules in which the polar donor set used for ion recognition (usually oxygens for cations and hydrogen bond donors for anions) is arranged on a lipophilic organic scaffold. Playing with these two structural motifs, donor atoms and scaffolds, researchers have constructed a variety of different ionophores, and we describe a subset of interesting examples in this Account. Despite the ample structural diversity, structure/activity relationships studies reveal common features. Even when they include different hydrophilic moieties (oxyethylene chains, free hydroxyl, etc.) and scaffolds (steroid derivatives, neutral or polar macrocycles, etc.), amphipathic molecules, that cannot span the entire phospholipid bilayer, generate defects in the contact zone between the ionophore and the lipids and increase the permeability in the bulk membrane. Therefore, topologically complex structures that span the entire membrane are needed to elicit channel-like and ion selective behaviors. In particular the alternate-calix[4]arene macrocycle proved to be a versatile platform to obtain 3D-structures that can form unimolecular channels in membranes. In these systems, the selection of proper donor groups allows us to control the ion selectivity of the process. We can switch from cation to anion transport by substituting protonated amines for the oxygen donors. Large and stable tubular structures with nanometric sized transmembrane nanopores that provide ample internal space represent a different approach for the preparation of synthetic ion channels. We used the metal-mediated self-assembly of porphyrin ligands with Re(I) corners as a new method for producing to robust channel-like structures. Such structures can survive in the complex membrane environment and show interesting ionophoric behavior. In addition to the development of new design principles, the selective modification of the biological membrane permeability could lead to important developments in medicine and technology.
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Affiliation(s)
- Francesco De Riccardis
- Department of Chemistry and Biology, University of Salerno, via Ponte don Melillo, I-84084 Fisciano (SA), Italy
| | - Irene Izzo
- Department of Chemistry and Biology, University of Salerno, via Ponte don Melillo, I-84084 Fisciano (SA), Italy
| | - Daniela Montesarchio
- Department of Chemical Sciences, University Federico II of Napoli, Via Cintia, 4, I-80126 Napoli, Italy
| | - Paolo Tecilla
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, via Giorgieri 1, I-34127, Trieste, Italy
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Chen X, Fei P, Cavicchi KA, Yang W, Ayres N. The poor solubility of ureidopyrimidone can be used to form gels of low molecular weight N-alkyl urea oligomers in organic solvents. Colloid Polym Sci 2013. [DOI: 10.1007/s00396-013-3087-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Patel P, Hanawa E, Yadav R, Samuni U, Marzabadi C, Sabatino D. Synthesis, DNA binding and anti-leukemic activity of an aminoacyl nucleolipid. Bioorg Med Chem Lett 2013; 23:5086-90. [DOI: 10.1016/j.bmcl.2013.07.030] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2013] [Revised: 07/06/2013] [Accepted: 07/16/2013] [Indexed: 11/17/2022]
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Montesarchio D, Coppola C, Boccalon M, Tecilla P. Carbohydrate-based synthetic ion transporters. Carbohydr Res 2012; 356:62-74. [DOI: 10.1016/j.carres.2012.03.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Revised: 03/09/2012] [Accepted: 03/10/2012] [Indexed: 11/27/2022]
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