1
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Russo C, Russomanno P, D'Amore VM, Alfano AI, Santoro F, Guzelj S, Gobec M, Amato J, Pagano B, Marinelli L, Carotenuto A, Tron GC, Di Leva FS, Jakopin Ž, Brancaccio D, Giustiniano M. Discovery of 2,3-Diaminoindole Derivatives as a Novel Class of NOD Antagonists. J Med Chem 2024; 67:3004-3017. [PMID: 38301029 DOI: 10.1021/acs.jmedchem.3c02094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
NOD1 and NOD2 are members of the pattern recognition receptors involved in the innate immune response. Overactivation of NOD1 is implicated in inflammatory disorders, multiple sclerosis, and cancer cell metastases. NOD1 antagonists would represent valuable pharmacological tools to gain further insight into protein roles, potentially leading to new therapeutic strategies. We herein report the expansion of the chemical space of NOD1 antagonists via a multicomponent synthetic approach affording a novel chemotype, namely, 2,3-diaminoindoles. These efforts resulted in compound 37, endowed with low micromolar affinity toward NOD1. Importantly, a proof-of-evidence of direct binding to NOD1 of Noditinib-1 and derivative 37 is provided here for the first time. Additionally, the combination of computational studies and NMR-based displacement assays enabled the characterization of the binding modality of 37 to NOD1, thus providing key unprecedented knowledge for the design of potent and selective NOD1 antagonists.
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Affiliation(s)
- Camilla Russo
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, Naples 80131, Italy
| | - Pasquale Russomanno
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, Naples 80131, Italy
| | - Vincenzo Maria D'Amore
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, Naples 80131, Italy
| | - Antonella Ilenia Alfano
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, Naples 80131, Italy
| | - Federica Santoro
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, Naples 80131, Italy
| | - Samo Guzelj
- Faculty of Pharmacy, University of Ljubljana, Askerceva 7, Ljubljana 1000, Slovenia
| | - Martina Gobec
- Faculty of Pharmacy, University of Ljubljana, Askerceva 7, Ljubljana 1000, Slovenia
| | - Jussara Amato
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, Naples 80131, Italy
| | - Bruno Pagano
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, Naples 80131, Italy
| | - Luciana Marinelli
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, Naples 80131, Italy
| | - Alfonso Carotenuto
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, Naples 80131, Italy
| | - Gian Cesare Tron
- Department of Pharmaceutical Sciences, University of Piemonte Orientale, Largo Donegani 2, Novara 28100, Italy
| | - Francesco Saverio Di Leva
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, Naples 80131, Italy
| | - Žiga Jakopin
- Faculty of Pharmacy, University of Ljubljana, Askerceva 7, Ljubljana 1000, Slovenia
| | - Diego Brancaccio
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, Naples 80131, Italy
| | - Mariateresa Giustiniano
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, Naples 80131, Italy
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Grasso N, Graziano R, Marzano S, D'Aria F, Merlino F, Grieco P, Randazzo A, Pagano B, Amato J. Unveiling the interaction between DNA G-quadruplexes and RG-rich peptides. Int J Biol Macromol 2023; 253:126749. [PMID: 37689293 DOI: 10.1016/j.ijbiomac.2023.126749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 08/28/2023] [Accepted: 08/31/2023] [Indexed: 09/11/2023]
Abstract
G-quadruplexes are non-canonical DNA secondary structures formed within guanine-rich strands that play important roles in various biological processes, including gene regulation, telomere maintenance and DNA replication. The biological functions and formation of these DNA structures are strictly controlled by several proteins that bind and stabilize or resolve them. Many G-quadruplex-binding proteins feature an arginine and glycine-rich motif known as the RGG or RG-rich motif. Although this motif plays a crucial role in the recognition of such non-canonical structures, their interaction is still poorly understood. Here, we employed a combination of several biophysical techniques to provide valuable insights into the interaction between a peptide containing an RGG motif shared by numerous human G-quadruplex-binding proteins (NIQI) and various biologically relevant G-quadruplex DNA structures with different topologies. We also shed light on the key amino acids involved in the binding process. Our findings contribute to lay the basis for the development of a new class of peptide-based G-quadruplex ligands as an alternative to small molecules. These ligands may serve as valid tools for interfering in DNA-protein interactions, with potential therapeutic applications.
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Affiliation(s)
- Nicola Grasso
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy
| | - Raffaele Graziano
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy
| | - Simona Marzano
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy
| | - Federica D'Aria
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy
| | - Francesco Merlino
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy
| | - Paolo Grieco
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy
| | - Antonio Randazzo
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy
| | - Bruno Pagano
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy.
| | - Jussara Amato
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy.
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Romano F, Di Porzio A, Iaccarino N, Riccardi G, Di Lorenzo R, Laneri S, Pagano B, Amato J, Randazzo A. G-quadruplexes in cancer-related gene promoters: from identification to therapeutic targeting. Expert Opin Ther Pat 2023; 33:745-773. [PMID: 37855085 DOI: 10.1080/13543776.2023.2271168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 10/11/2023] [Indexed: 10/20/2023]
Abstract
INTRODUCTION Guanine-rich DNA sequences can fold into four-stranded noncanonical secondary structures called G-quadruplexes (G4s) which are widely distributed in functional regions of the human genome, such as telomeres and gene promoter regions. Compelling evidence suggests their involvement in key genome functions such as gene expression and genome stability. Notably, the abundance of G4-forming sequences near transcription start sites suggests their potential involvement in regulating oncogenes. AREAS COVERED This review provides an overview of current knowledge on G4s in human oncogene promoters. The most representative G4-binding ligands have also been documented. The objective of this work is to present a comprehensive overview of the most promising targets for the development of novel and highly specific anticancer drugs capable of selectively impacting the expression of individual or a limited number of genes. EXPERT OPINION Modulation of G4 formation by specific ligands has been proposed as a powerful new tool to treat cancer through the control of oncogene expression. Actually, most of G4-binding small molecules seem to simultaneously target a range of gene promoter G4s, potentially influencing several critical driver genes in cancer, thus producing significant therapeutic benefits.
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Affiliation(s)
- Francesca Romano
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Anna Di Porzio
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Nunzia Iaccarino
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | | | | | - Sonia Laneri
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Bruno Pagano
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Jussara Amato
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Antonio Randazzo
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
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Rocca R, Polerà N, Juli G, Grillone K, Maruca A, Di Martino MT, Artese A, Amato J, Pagano B, Randazzo A, Tagliaferri P, Tassone P, Alcaro S. Hit identification of novel small molecules interfering with MALAT1 triplex by a structure-based virtual screening. Arch Pharm (Weinheim) 2023; 356:e2300134. [PMID: 37309243 DOI: 10.1002/ardp.202300134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 05/02/2023] [Accepted: 05/03/2023] [Indexed: 06/14/2023]
Abstract
Nowadays, RNA is an attractive target for the design of new small molecules with different pharmacological activities. Among several RNA molecules, long noncoding RNAs (lncRNAs) are extensively reported to be involved in cancer pathogenesis. In particular, the overexpression of lncRNA metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) plays an important role in the development of multiple myeloma (MM). Starting from the crystallographic structure of the triple-helical stability element at the 3'-end of MALAT1, we performed a structure-based virtual screening of a large commercial database, previously filtered according to the drug-like properties. After a thermodynamic analysis, we selected five compounds for the in vitro assays. Compound M5, characterized by a diazaindene scaffold, emerged as the most promising molecule enabling the destabilization of the MALAT1 triplex structure and antiproliferative activity on in vitro models of MM. M5 is proposed as a lead compound to be further optimized for improving its affinity toward MALAT1.
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Affiliation(s)
- Roberta Rocca
- Department of Experimental and Clinical Medicine, Università degli Studi "Magna Graecia" di Catanzaro, Campus "Salvatore Venuta", Catanzaro, Italy
- Net4science srl, Università degli Studi "Magna Graecia" di Catanzaro, Catanzaro, Italy
| | - Nicoletta Polerà
- Department of Experimental and Clinical Medicine, Università degli Studi "Magna Graecia" di Catanzaro, Campus "Salvatore Venuta", Catanzaro, Italy
| | - Giada Juli
- Department of Experimental and Clinical Medicine, Università degli Studi "Magna Graecia" di Catanzaro, Campus "Salvatore Venuta", Catanzaro, Italy
| | - Katia Grillone
- Department of Experimental and Clinical Medicine, Università degli Studi "Magna Graecia" di Catanzaro, Campus "Salvatore Venuta", Catanzaro, Italy
| | - Annalisa Maruca
- Net4science srl, Università degli Studi "Magna Graecia" di Catanzaro, Catanzaro, Italy
| | - Maria Teresa Di Martino
- Department of Experimental and Clinical Medicine, Università degli Studi "Magna Graecia" di Catanzaro, Campus "Salvatore Venuta", Catanzaro, Italy
| | - Anna Artese
- Net4science srl, Università degli Studi "Magna Graecia" di Catanzaro, Catanzaro, Italy
- Dipartimento di Scienze della Salute, Università degli Studi "Magna Graecia" di Catanzaro, Campus "Salvatore Venuta", Catanzaro, Italy
| | - Jussara Amato
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Bruno Pagano
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Antonio Randazzo
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Pietrosandro Tagliaferri
- Department of Experimental and Clinical Medicine, Università degli Studi "Magna Graecia" di Catanzaro, Campus "Salvatore Venuta", Catanzaro, Italy
| | - Pierfrancesco Tassone
- Department of Experimental and Clinical Medicine, Università degli Studi "Magna Graecia" di Catanzaro, Campus "Salvatore Venuta", Catanzaro, Italy
| | - Stefano Alcaro
- Net4science srl, Università degli Studi "Magna Graecia" di Catanzaro, Catanzaro, Italy
- Dipartimento di Scienze della Salute, Università degli Studi "Magna Graecia" di Catanzaro, Campus "Salvatore Venuta", Catanzaro, Italy
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D'Amico F, Graziano R, D'Aria F, Russomanno P, Di Fonzo S, Amato J, Pagano B. Cytosine epigenetic modifications and conformational changes in G-quadruplex DNA: An ultraviolet resonance Raman spectroscopy study. Spectrochim Acta A Mol Biomol Spectrosc 2023; 300:122901. [PMID: 37244027 DOI: 10.1016/j.saa.2023.122901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 04/26/2023] [Accepted: 05/17/2023] [Indexed: 05/29/2023]
Abstract
Epigenetic modifications of DNA are known to play important regulatory roles in biological systems, especially in regulation of gene expression, and are associated with many types of human diseases, including cancer. Alternative DNA secondary structures, such as G-quadruplexes, can also influence gene transcription, thus suggesting that such structures may represent a distinctive layer of epigenetic information. G-quadruplex structures and DNA epigenetic modifications often go side by side, and recent evidence reveals that cytosine modifications within loops of G-quadruplexes can play a role in modulating their stability and structural polymorphism. Therefore, the development and validation of experimental techniques that can easily and reliably analyse G-quadruplex structures are highly desirable. In the present study, we propose to exploit the advantages of UV resonance Raman (UVRR) spectroscopy to investigate cytosine epigenetic modifications along with conformational changes in G-quadruplex-forming DNA. Our findings show that clear and specific spectral changes occur when there is a change in a G-quadruplex structure. Moreover, UVRR spectral analysis can indirectly distinguish the spectral variations occurring because of modifications in the guanine glycosidic conformations, as well as detect changes in the loops induced by H-bond formation or hydration of nitrogenous bases. The results further underscore the utility of UVRR spectroscopy for G-quadruplex structure elucidation under biologically relevant solution conditions.
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Affiliation(s)
- Francesco D'Amico
- Elettra-Sincrotrone Trieste S. C. p. A., Science Park, Trieste I-34149, Italy
| | - Raffaele Graziano
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano 49, 80131 Naples, Italy
| | - Federica D'Aria
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano 49, 80131 Naples, Italy
| | - Pasquale Russomanno
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano 49, 80131 Naples, Italy
| | - Silvia Di Fonzo
- Elettra-Sincrotrone Trieste S. C. p. A., Science Park, Trieste I-34149, Italy
| | - Jussara Amato
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano 49, 80131 Naples, Italy.
| | - Bruno Pagano
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano 49, 80131 Naples, Italy.
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Ambrosio MR, Migliaccio T, Napolitano F, Di Somma S, Maneli G, Amato J, Pagano B, Randazzo A, Portella G, Formisano P, Malfitano AM. Targeting G-quadruplex motifs interferes with differentiation of adipose-derived mesenchymal stem cells. Stem Cell Res Ther 2023; 14:98. [PMID: 37076894 PMCID: PMC10116735 DOI: 10.1186/s13287-023-03320-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 03/29/2023] [Indexed: 04/21/2023] Open
Abstract
BACKGROUND G-quadruplex (G4) motifs are nucleic acid secondary structures observed in mammalian genomes and transcriptomes able to regulate various cellular processes. Several small molecules have been developed so far to modulate G4 stability, frequently associated with anticancer activity. However, how G4 structures are regulated over homeostatic conditions is mostly unexplored. Here, we used human adipose-derived mesenchymal stem cells (ASCs) to address the role of G4 motifs during adipogenic differentiation. METHODS Adipocyte differentiation of ASCs was investigated in the presence or absence of a well-known G4 ligand, Braco-19. Cell viability was determined by sulforhodamine B assay. Cell dimension and granularity, DNA G4 motifs and cell cycle were detected by flow cytometry. Lipid droplet accumulation was assessed by Oil Red O staining. Cell senescence was evaluated by β-galactosidase staining. Gene expression was measured by qPCR. Protein release in the extracellular medium was quantified by ELISA. RESULTS Braco-19 used at non-cytotoxic concentrations induced morphological changes in mature adipocytes partially restoring an undifferentiated-like status. Braco-19 reduced lipid vacuolization and PPARG, AP2, LEP and TNFA mRNA levels in terminally differentiated cells. No effect was observed in cell senescence, fibrotic markers, IL-6 and IL-8 production, while the secretion of VEGF was dose-dependently reduced. Interestingly, G4 structures were increased in differentiated adipocytes compared to their precursors. Braco-19 treatment reduced G4 content in mature adipocytes. CONCLUSIONS Our data highlight a new role of G4 motifs as genomic structural elements related to human ASC differentiation into mature adipocytes, with potential implications in physio-pathological processes.
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Affiliation(s)
- Maria Rosaria Ambrosio
- Department of Translational Medical Sciences, University "Federico II", 80131, Naples, Italy
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131, Naples, Italy
| | - Teresa Migliaccio
- Department of Translational Medical Sciences, University "Federico II", 80131, Naples, Italy
| | - Fabiana Napolitano
- Department of Translational Medical Sciences, University "Federico II", 80131, Naples, Italy
| | - Sarah Di Somma
- Department of Translational Medical Sciences, University "Federico II", 80131, Naples, Italy
| | - Giovanni Maneli
- Department of Translational Medical Sciences, University "Federico II", 80131, Naples, Italy
| | - Jussara Amato
- Department of Pharmacy, University of Naples Federico II, 80131, Naples, Italy
| | - Bruno Pagano
- Department of Pharmacy, University of Naples Federico II, 80131, Naples, Italy
| | - Antonio Randazzo
- Department of Pharmacy, University of Naples Federico II, 80131, Naples, Italy
| | - Giuseppe Portella
- Department of Translational Medical Sciences, University "Federico II", 80131, Naples, Italy
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131, Naples, Italy
| | - Pietro Formisano
- Department of Translational Medical Sciences, University "Federico II", 80131, Naples, Italy.
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131, Naples, Italy.
| | - Anna Maria Malfitano
- Department of Translational Medical Sciences, University "Federico II", 80131, Naples, Italy.
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Miglione A, Raucci A, Amato J, Marzano S, Pagano B, Raia T, Lucarelli M, Fuso A, Cinti S. Printed Electrochemical Strip for the Detection of miRNA-29a: A Possible Biomarker Related to Alzheimer’s Disease. Anal Chem 2022; 94:15558-15563. [PMID: 36318963 PMCID: PMC9670028 DOI: 10.1021/acs.analchem.2c03542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
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The development of electrochemical strips, as extremely
powerful
diagnostic tools, has received much attention in the field of sensor
analysis and, in particular, the detection of nucleic acids in complex
matrixes is a hot topic in the electroanalytical area, especially
when directed toward the development of emerging technologies, for
the purpose of facilitating personal healthcare. One of the major
diseases for which early diagnosis is crucial is represented by Alzheimer’s
disease (AD). AD is a progressive neurodegenerative disease, and it
is the most common cause of dementia worldwide. In this context microRNAs
(miRNAs), which are small noncoding RNAs, have recently been highlighted
for their promising role as biomarkers for early diagnosis. In particular,
miRNA-29 represents a class of miRNAs known to regulate pathogenesis
of AD. In this work we developed an electrochemical printed strip
for the detection of miRNA-29a at low levels. The architecture was
characterized by the presence of gold nanoparticles (AuNPs) and an
anti-miRNA-29a probe labeled with a redox mediator. The novel analytical
tool has been characterized with microscale thermophoresis and electrochemical
methods, and it has been optimized by selection of the most appropriate
probe density to detect low target concentration. The present tool
was capable to detect miRNA-29a both in standard solution and in serum,
respectively, down to 0.15 and 0.2 nM. The platform highlighted good
repeatability (calculated as the relative standard deviation) of ca.
10% and satisfactory selectivity in the presence of interfering species.
This work has the objective to open a way for the study and possible
early diagnosis of a physically and socially devastating disease such
as Alzheimer’s. The results demonstrate the suitability of
this approach in terms of ease of use, time of production, sensitivity,
and applicability.
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Affiliation(s)
- Antonella Miglione
- Department of Pharmacy, University of Naples “Federico II”, Via Domenico Montesano 49, 80131 Naples, Italy
| | - Ada Raucci
- Department of Pharmacy, University of Naples “Federico II”, Via Domenico Montesano 49, 80131 Naples, Italy
| | - Jussara Amato
- Department of Pharmacy, University of Naples “Federico II”, Via Domenico Montesano 49, 80131 Naples, Italy
| | - Simona Marzano
- Department of Pharmacy, University of Naples “Federico II”, Via Domenico Montesano 49, 80131 Naples, Italy
| | - Bruno Pagano
- Department of Pharmacy, University of Naples “Federico II”, Via Domenico Montesano 49, 80131 Naples, Italy
| | - Tiziana Raia
- Department of Experimental Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161 Rome, Italy
| | - Marco Lucarelli
- Department of Experimental Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161 Rome, Italy
- Pasteur Institute Cenci Bolognetti Foundation, Sapienza University of Rome, Viale Regina Elena 291, 00161 Rome, Italy
| | - Andrea Fuso
- Department of Experimental Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161 Rome, Italy
| | - Stefano Cinti
- Department of Pharmacy, University of Naples “Federico II”, Via Domenico Montesano 49, 80131 Naples, Italy
- BAT Center─Interuniversity Center for Studies on Bioinspired Agro-Environmental Technology, University of Naples “Federico II”, 80055 Naples, Italy
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8
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Marzano S, Miglietta G, Morigi R, Marinello J, Arleo A, Procacci M, Locatelli A, Leoni A, Pagano B, Randazzo A, Amato J, Capranico G. Balancing Affinity, Selectivity, and Cytotoxicity of Hydrazone-Based G-Quadruplex Ligands for Activation of Interferon β Genes in Cancer Cells. J Med Chem 2022; 65:12055-12067. [PMID: 36074772 PMCID: PMC9511478 DOI: 10.1021/acs.jmedchem.2c00772] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
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G-quadruplex (G4) ligands are investigated to discover
new anticancer
drugs with increased cell-killing potency. These ligands can induce
genome instability and activate innate immune genes at non-cytotoxic
doses, opening the discovery of cytostatic immune-stimulating ligands.
However, the interplay of G4 affinity/selectivity with cytotoxicity
and immune gene activation is not well-understood. We investigated
a series of closely related hydrazone derivatives to define the molecular
bases of immune-stimulation activity. Although they are closely related
to each other, such derivatives differ in G4 affinity, cytotoxicity,
genome instability, and immune gene activation. Our findings show
that G4 affinity of ligands is a critical feature for immune gene
activation, whereas a high cytotoxic potency interferes with it. The
balance of G4 stabilization versus cytotoxicity can
determine the level of immune gene activation in cancer cells. Thus,
we propose a new rationale based on low cell-killing potency and high
immune stimulation to discover effective anticancer G4 ligands.
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Affiliation(s)
- Simona Marzano
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy
| | - Giulia Miglietta
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum─University of Bologna, 40126 Bologna, Italy
| | - Rita Morigi
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum─University of Bologna, 40126 Bologna, Italy
| | - Jessica Marinello
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum─University of Bologna, 40126 Bologna, Italy
| | - Andrea Arleo
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum─University of Bologna, 40126 Bologna, Italy
| | - Monica Procacci
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum─University of Bologna, 40126 Bologna, Italy
| | - Alessandra Locatelli
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum─University of Bologna, 40126 Bologna, Italy
| | - Alberto Leoni
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum─University of Bologna, 40126 Bologna, Italy
| | - Bruno Pagano
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy
| | - Antonio Randazzo
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy
| | - Jussara Amato
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy
| | - Giovanni Capranico
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum─University of Bologna, 40126 Bologna, Italy
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9
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Minenkova O, Santapaola D, Milazzo FM, Anastasi AM, Battistuzzi G, Chiapparino C, Rosi A, Gritti G, Borleri G, Rambaldi A, Dental C, Viollet C, Pagano B, Salvini L, Marra E, Luberto L, Rossi A, Riccio A, Merlo Pich E, Santoro MG, De Santis R. Human inhalable antibody fragments neutralizing SARS-CoV-2 variants for COVID-19 therapy. Mol Ther 2022; 30:1979-1993. [PMID: 35167974 PMCID: PMC8837488 DOI: 10.1016/j.ymthe.2022.02.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 02/02/2022] [Accepted: 02/09/2022] [Indexed: 12/01/2022] Open
Abstract
As of December 2021, coronavirus disease 2019 (COVID-19), caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), remains a global emergency, and novel therapeutics are urgently needed. Here we describe human single-chain variable fragment (scFv) antibodies (76clAbs) that block an epitope of the SARS-CoV-2 spike protein essential for ACE2-mediated entry into cells. 76clAbs neutralize the Delta variant and other variants being monitored (VBMs) and inhibit spike-mediated pulmonary cell-cell fusion, a critical feature of COVID-19 pathology. In two independent animal models, intranasal administration counteracted the infection. Because of their high efficiency, remarkable stability, resilience to nebulization, and low cost of production, 76clAbs may become a relevant tool for rapid, self-administrable early intervention in SARS-CoV-2-infected subjects independently of their immune status.
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Affiliation(s)
- Olga Minenkova
- Alfasigma SpA, Biotechnology R&D, Via Pontina Km 30.400, Pomezia, 00071 Rome, Italy
| | - Daniela Santapaola
- Alfasigma SpA, Biotechnology R&D, Via Pontina Km 30.400, Pomezia, 00071 Rome, Italy
| | | | - Anna Maria Anastasi
- Alfasigma SpA, Biotechnology R&D, Via Pontina Km 30.400, Pomezia, 00071 Rome, Italy
| | | | - Caterina Chiapparino
- Alfasigma SpA, Biotechnology R&D, Via Pontina Km 30.400, Pomezia, 00071 Rome, Italy
| | - Antonio Rosi
- Alfasigma SpA, Biotechnology R&D, Via Pontina Km 30.400, Pomezia, 00071 Rome, Italy
| | - Giuseppe Gritti
- ASST Papa Giovanni XXIII, Piazza OMS, 1, 24127 Bergamo, Italy
| | | | - Alessandro Rambaldi
- ASST Papa Giovanni XXIII, Piazza OMS, 1, 24127 Bergamo, Italy; Department of Hematology and Oncology, University of Milan, Via Festa del Perdono, 7, 20122 Milan, Italy
| | - Clélia Dental
- Texcell, Batiment Genavenir 5, Rue Pierre Fontaine 1, 91058 Evry Cedex, France
| | - Cécile Viollet
- Texcell, Batiment Genavenir 5, Rue Pierre Fontaine 1, 91058 Evry Cedex, France
| | - Bruno Pagano
- Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano, 49, 80131 Naples, Italy
| | - Laura Salvini
- Fondazione Toscana Life Sciences, Via Fiorentina, 1, 53100 Siena, Italy
| | | | - Laura Luberto
- Takis Srl, Via di Castel Romano, 100, 00128 Rome, Italy
| | - Antonio Rossi
- Institute of Translational Pharmacology, CNR, Via Fosso del Cavaliere, 100, 00133 Rome, Italy
| | - Anna Riccio
- Department of Biology, University of Rome Tor Vergata, Via della Ricerca Scientifica, 1, 00133 Rome, Italy
| | - Emilio Merlo Pich
- Alfasigma SpA, Biotechnology R&D, Via Pontina Km 30.400, Pomezia, 00071 Rome, Italy
| | - Maria Gabriella Santoro
- Institute of Translational Pharmacology, CNR, Via Fosso del Cavaliere, 100, 00133 Rome, Italy; Department of Biology, University of Rome Tor Vergata, Via della Ricerca Scientifica, 1, 00133 Rome, Italy
| | - Rita De Santis
- Alfasigma SpA, Biotechnology R&D, Via Pontina Km 30.400, Pomezia, 00071 Rome, Italy.
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10
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Amato J, Iaccarino N, D'Aria F, D'Amico F, Randazzo A, Giancola C, Cesàro A, Di Fonzo S, Pagano B. Conformational plasticity of DNA secondary structures: probing the conversion between i-motif and hairpin species by circular dichroism and ultraviolet resonance Raman spectroscopies. Phys Chem Chem Phys 2022; 24:7028-7044. [PMID: 35258065 DOI: 10.1039/d2cp00058j] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The promoter regions of important oncogenes such as BCL2 and KRAS contain GC-rich sequences that can form distinctive noncanonical DNA structures involved in the regulation of transcription: G-quadruplexes on the G-rich strand and i-motifs on the C-rich strand. Interestingly, BCL2 and KRAS promoter i-motifs are highly dynamic in nature and exist in a pH-dependent equilibrium with hairpin and even with hybrid i-motif/hairpin species. Herein, the effects of pH and presence of cell-mimicking molecular crowding conditions on conformational equilibria of the BCL2 and KRAS i-motif-forming sequences were investigated by ultraviolet resonance Raman (UVRR) and circular dichroism (CD) spectroscopies. Multivariate analysis of CD data was essential to model the presence and identity of the species involved. Analysis of UVRR spectra measured as a function of pH, performed also by the two-dimensional correlation spectroscopy (2D-COS) technique, showed the role of several functional groups in the DNA conformational transitions, and provided structural and dynamic information. Thus, the UVRR investigation of intramolecular interactions and of local and environmental dynamics in promoting the different species induced by the solution conditions provided valuable insights into i-motif conformational transitions. The combined use of the two spectroscopic tools is emphasized by the relevant possibility of working in the same DNA concentration range and by the heterospectral UVRR/CD 2D-COS analysis. The results of this study shed light on the factors that can influence at the molecular level the equilibrium between the different conformational species putatively involved in the oncogene expression.
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Affiliation(s)
- Jussara Amato
- Department of Pharmacy, University of Naples Federico II, Naples, I-80131, Italy.
| | - Nunzia Iaccarino
- Department of Pharmacy, University of Naples Federico II, Naples, I-80131, Italy.
| | - Federica D'Aria
- Department of Pharmacy, University of Naples Federico II, Naples, I-80131, Italy.
| | - Francesco D'Amico
- Elettra-Sincrotrone Trieste S. C. p. A., Science Park, Trieste, I-34149, Italy.
| | - Antonio Randazzo
- Department of Pharmacy, University of Naples Federico II, Naples, I-80131, Italy.
| | - Concetta Giancola
- Department of Pharmacy, University of Naples Federico II, Naples, I-80131, Italy.
| | - Attilio Cesàro
- Elettra-Sincrotrone Trieste S. C. p. A., Science Park, Trieste, I-34149, Italy.
| | - Silvia Di Fonzo
- Elettra-Sincrotrone Trieste S. C. p. A., Science Park, Trieste, I-34149, Italy.
| | - Bruno Pagano
- Department of Pharmacy, University of Naples Federico II, Naples, I-80131, Italy.
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11
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Moraca F, Marzano S, D'Amico F, Lupia A, Di Fonzo S, Vertecchi E, Salvati E, Di Porzio A, Catalanotti B, Randazzo A, Pagano B, Amato J. Ligand-based drug repurposing strategy identified SARS-CoV-2 RNA G-quadruplex binders. Chem Commun (Camb) 2022; 58:11913-11916. [DOI: 10.1039/d2cc03135c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The single-stranded RNA genome of SARS-CoV-2 contains some G-quadruplex-forming G-rich elements which are putative drug targets. Here, we performed a ligand-based pharmacophore virtual screening of FDA approved drugs to find...
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12
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Auditore L, Amato E, Pistone D, Pagano B, Italiano A. Evaluation of radiation exposure risk from 90Y in the light of internal bremsstrahlung emission. Phys Med 2021. [DOI: 10.1016/s1120-1797(22)00501-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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13
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Russomanno P, Assoni G, Amato J, D'Amore VM, Scaglia R, Brancaccio D, Pedrini M, Polcaro G, La Pietra V, Orlando P, Falzoni M, Cerofolini L, Giuntini S, Fragai M, Pagano B, Donati G, Novellino E, Quintavalle C, Condorelli G, Sabbatino F, Seneci P, Arosio D, Pepe S, Marinelli L. Interfering with the Tumor-Immune Interface: Making Way for Triazine-Based Small Molecules as Novel PD-L1 Inhibitors. J Med Chem 2021; 64:16020-16045. [PMID: 34670084 DOI: 10.1021/acs.jmedchem.1c01409] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The inhibition of the PD-1/PD-L1 axis by monoclonal antibodies has achieved remarkable success in treating a growing number of cancers. However, a novel class of small organic molecules, with BMS-202 (1) as the lead, is emerging as direct PD-L1 inhibitors. Herein, we report a series of 2,4,6-tri- and 2,4-disubstituted 1,3,5-triazines, which were synthesized and assayed for their PD-L1 binding by NMR and homogeneous time-resolved fluorescence. Among them, compound 10 demonstrated to strongly bind with the PD-L1 protein and challenged it in a co-culture of PD-L1 expressing cancer cells (PC9 and HCC827 cells) and peripheral blood mononuclear cells enhanced antitumor immune activity of the latter. Compound 10 significantly increased interferon γ release and apoptotic induction of cancer cells, with low cytotoxicity in healthy cells when compared to 1, thus paving the way for subsequent preclinical optimization and medical applications.
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Affiliation(s)
- Pasquale Russomanno
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via D. Montesano 49, Napoli 80131, Italy
| | - Giulia Assoni
- Department of Cellular, Computational and Integrative Biology, (CIBIO), Università degli Studi di Trento, Via Sommarive 9, Povo I-38123, Trento, Italy.,Chemistry Department, Università degli Studi di Milano, Via C. Golgi 19, Milan 20133, Italy
| | - Jussara Amato
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via D. Montesano 49, Napoli 80131, Italy
| | - Vincenzo Maria D'Amore
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via D. Montesano 49, Napoli 80131, Italy
| | - Riccardo Scaglia
- Chemistry Department, Università degli Studi di Milano, Via C. Golgi 19, Milan 20133, Italy
| | - Diego Brancaccio
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via D. Montesano 49, Napoli 80131, Italy
| | - Martina Pedrini
- Chemistry Department, Università degli Studi di Milano, Via C. Golgi 19, Milan 20133, Italy
| | - Giovanna Polcaro
- Dipartimento di Medicina e Chirurgia, Ospedale "San Giovanni di Dio e Ruggi d'Aragona", Università di Salerno, Salerno 84131, Italy
| | - Valeria La Pietra
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via D. Montesano 49, Napoli 80131, Italy
| | - Paolo Orlando
- Chemistry Department, Università degli Studi di Milano, Via C. Golgi 19, Milan 20133, Italy
| | - Marianna Falzoni
- Chemistry Department, Università degli Studi di Milano, Via C. Golgi 19, Milan 20133, Italy
| | - Linda Cerofolini
- Centro di Risonanza Magnetica, CERM, Università di Firenze, Firenze 50019, Italy
| | - Stefano Giuntini
- Centro di Risonanza Magnetica, CERM, Università di Firenze, Firenze 50019, Italy
| | - Marco Fragai
- Centro di Risonanza Magnetica, CERM, Università di Firenze, Firenze 50019, Italy
| | - Bruno Pagano
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via D. Montesano 49, Napoli 80131, Italy
| | - Greta Donati
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via D. Montesano 49, Napoli 80131, Italy
| | | | - Cristina Quintavalle
- Department of Molecular Medicine and Medical Biotechnology, "Federico II" University, Naples, Italy; Institute for Experimental Endocrinology and Oncology (IEOS), National Research Council (CNR), Naples 80131, Italy
| | - Gerolama Condorelli
- Department of Molecular Medicine and Medical Biotechnology, "Federico II" University, Naples, Italy; Institute for Experimental Endocrinology and Oncology (IEOS), National Research Council (CNR), Naples 80131, Italy.,Department of Molecular Medicine and Medical Biotechnology, "Federico II" University, Naples 80131, Italy
| | - Francesco Sabbatino
- Dipartimento di Medicina e Chirurgia, Ospedale "San Giovanni di Dio e Ruggi d'Aragona", Università di Salerno, Salerno 84131, Italy
| | - Pierfausto Seneci
- Chemistry Department, Università degli Studi di Milano, Via C. Golgi 19, Milan 20133, Italy
| | - Daniela Arosio
- Istituto di Scienze e Tecnologie Chimiche "Giulio Natta" (SCITEC), Consiglio Nazionale delle Ricerche (CNR), Via C. Golgi 19, Milan 20133, Italy
| | - Stefano Pepe
- Dipartimento di Medicina e Chirurgia, Ospedale "San Giovanni di Dio e Ruggi d'Aragona", Università di Salerno, Salerno 84131, Italy
| | - Luciana Marinelli
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via D. Montesano 49, Napoli 80131, Italy
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14
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Di Porzio A, Galli U, Amato J, Zizza P, Iachettini S, Iaccarino N, Marzano S, Santoro F, Brancaccio D, Carotenuto A, De Tito S, Biroccio A, Pagano B, Tron GC, Randazzo A. Synthesis and Characterization of Bis-Triazolyl-Pyridine Derivatives as Noncanonical DNA-Interacting Compounds. Int J Mol Sci 2021; 22:11959. [PMID: 34769387 PMCID: PMC8584640 DOI: 10.3390/ijms222111959] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 10/31/2021] [Accepted: 11/01/2021] [Indexed: 02/07/2023] Open
Abstract
Besides the well-known double-helical conformation, DNA is capable of folding into various noncanonical arrangements, such as G-quadruplexes (G4s) and i-motifs (iMs), whose occurrence in gene promoters, replication origins, and telomeres highlights the breadth of biological processes that they might regulate. Particularly, previous studies have reported that G4 and iM structures may play different roles in controlling gene transcription. Anyway, molecular tools able to simultaneously stabilize/destabilize those structures are still needed to shed light on what happens at the biological level. Herein, a multicomponent reaction and a click chemistry functionalization were combined to generate a set of 31 bis-triazolyl-pyridine derivatives which were initially screened by circular dichroism for their ability to interact with different G4 and/or iM DNAs and to affect the thermal stability of these structures. All the compounds were then clustered through multivariate data analysis, based on such capability. The most promising compounds were subjected to a further biophysical and biological characterization, leading to the identification of two molecules simultaneously able to stabilize G4s and destabilize iMs, both in vitro and in living cells.
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Affiliation(s)
- Anna Di Porzio
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano 49, 80131 Naples, Italy; (A.D.P.); (J.A.); (N.I.); (S.M.); (F.S.); (D.B.); (A.C.); (B.P.)
| | - Ubaldina Galli
- Department of Pharmaceutical Sciences, University of Piemonte Orientale, Largo Donegani 2/3, 28100 Novara, Italy;
| | - Jussara Amato
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano 49, 80131 Naples, Italy; (A.D.P.); (J.A.); (N.I.); (S.M.); (F.S.); (D.B.); (A.C.); (B.P.)
| | - Pasquale Zizza
- Oncogenomic and Epigenetic Unit, IRCCS-Regina Elena National Cancer Institute, 00144 Rome, Italy; (P.Z.); (S.I.); (A.B.)
| | - Sara Iachettini
- Oncogenomic and Epigenetic Unit, IRCCS-Regina Elena National Cancer Institute, 00144 Rome, Italy; (P.Z.); (S.I.); (A.B.)
| | - Nunzia Iaccarino
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano 49, 80131 Naples, Italy; (A.D.P.); (J.A.); (N.I.); (S.M.); (F.S.); (D.B.); (A.C.); (B.P.)
| | - Simona Marzano
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano 49, 80131 Naples, Italy; (A.D.P.); (J.A.); (N.I.); (S.M.); (F.S.); (D.B.); (A.C.); (B.P.)
| | - Federica Santoro
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano 49, 80131 Naples, Italy; (A.D.P.); (J.A.); (N.I.); (S.M.); (F.S.); (D.B.); (A.C.); (B.P.)
| | - Diego Brancaccio
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano 49, 80131 Naples, Italy; (A.D.P.); (J.A.); (N.I.); (S.M.); (F.S.); (D.B.); (A.C.); (B.P.)
| | - Alfonso Carotenuto
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano 49, 80131 Naples, Italy; (A.D.P.); (J.A.); (N.I.); (S.M.); (F.S.); (D.B.); (A.C.); (B.P.)
| | - Stefano De Tito
- Molecular Cell Biology of Autophagy, The Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK;
- Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy
| | - Annamaria Biroccio
- Oncogenomic and Epigenetic Unit, IRCCS-Regina Elena National Cancer Institute, 00144 Rome, Italy; (P.Z.); (S.I.); (A.B.)
| | - Bruno Pagano
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano 49, 80131 Naples, Italy; (A.D.P.); (J.A.); (N.I.); (S.M.); (F.S.); (D.B.); (A.C.); (B.P.)
| | - Gian Cesare Tron
- Department of Pharmaceutical Sciences, University of Piemonte Orientale, Largo Donegani 2/3, 28100 Novara, Italy;
| | - Antonio Randazzo
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano 49, 80131 Naples, Italy; (A.D.P.); (J.A.); (N.I.); (S.M.); (F.S.); (D.B.); (A.C.); (B.P.)
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15
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Amato J, D'Aria F, Marzano S, Iaccarino N, Randazzo A, Giancola C, Pagano B. On the thermodynamics of folding of an i-motif DNA in solution under favorable conditions. Phys Chem Chem Phys 2021; 23:15030-15037. [PMID: 34151914 DOI: 10.1039/d1cp01779a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Under slightly acidic conditions, cytosine-rich DNA sequences can form non-canonical secondary structures called i-motifs, which occur as four stretches of cytosine repeats form hemi-protonated C·C+ base pairs. The growing interest in the i-motif structures as important components in functional DNA-based nanotechnology or as potential targets of anticancer drugs, increases the need for a deep understanding of the energetics of their structural transitions. Here, a combination of spectroscopic and calorimetric techniques is used to unravel the thermodynamics of folding of an i-motif DNA under favorable conditions. The results give new insights into the energetic aspects of i-motifs and show that thermodynamic and thermal stability are related but not identical properties of such DNA structures.
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Affiliation(s)
- Jussara Amato
- Department of Pharmacy, University of Naples Federico II, Naples, I-80131, Italy.
| | - Federica D'Aria
- Department of Pharmacy, University of Naples Federico II, Naples, I-80131, Italy.
| | - Simona Marzano
- Department of Pharmacy, University of Naples Federico II, Naples, I-80131, Italy.
| | - Nunzia Iaccarino
- Department of Pharmacy, University of Naples Federico II, Naples, I-80131, Italy.
| | - Antonio Randazzo
- Department of Pharmacy, University of Naples Federico II, Naples, I-80131, Italy.
| | - Concetta Giancola
- Department of Pharmacy, University of Naples Federico II, Naples, I-80131, Italy.
| | - Bruno Pagano
- Department of Pharmacy, University of Naples Federico II, Naples, I-80131, Italy.
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16
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Iaccarino N, Cheng M, Qiu D, Pagano B, Amato J, Di Porzio A, Zhou J, Randazzo A, Mergny J. Effects of Sequence and Base Composition on the CD and TDS Profiles of i‐DNA. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202016822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Nunzia Iaccarino
- Department of Pharmacy University of Naples Federico II Via D. Montesano 49 80131 Naples Italy
| | - Mingpan Cheng
- State Key Laboratory of Analytical Chemistry for Life Science School of Chemistry & Chemical Engineering Nanjing University Nanjing 210023 China
- ARNA Laboratory Université de Bordeaux Inserm U 1212, CNRS UMR5320 IECB 33607 Pessac France
| | - Dehui Qiu
- State Key Laboratory of Analytical Chemistry for Life Science School of Chemistry & Chemical Engineering Nanjing University Nanjing 210023 China
| | - Bruno Pagano
- Department of Pharmacy University of Naples Federico II Via D. Montesano 49 80131 Naples Italy
| | - Jussara Amato
- Department of Pharmacy University of Naples Federico II Via D. Montesano 49 80131 Naples Italy
| | - Anna Di Porzio
- Department of Pharmacy University of Naples Federico II Via D. Montesano 49 80131 Naples Italy
| | - Jun Zhou
- State Key Laboratory of Analytical Chemistry for Life Science School of Chemistry & Chemical Engineering Nanjing University Nanjing 210023 China
| | - Antonio Randazzo
- Department of Pharmacy University of Naples Federico II Via D. Montesano 49 80131 Naples Italy
| | - Jean‐Louis Mergny
- State Key Laboratory of Analytical Chemistry for Life Science School of Chemistry & Chemical Engineering Nanjing University Nanjing 210023 China
- ARNA Laboratory Université de Bordeaux Inserm U 1212, CNRS UMR5320 IECB 33607 Pessac France
- Laboratoire d'Optique et Biosciences Ecole Polytechnique CNRS INSERM Institut Polytechnique de Paris 91128 Palaiseau France
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17
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Iaccarino N, Cheng M, Qiu D, Pagano B, Amato J, Di Porzio A, Zhou J, Randazzo A, Mergny J. Effects of Sequence and Base Composition on the CD and TDS Profiles of i-DNA. Angew Chem Int Ed Engl 2021; 60:10295-10303. [PMID: 33617090 PMCID: PMC8251954 DOI: 10.1002/anie.202016822] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Indexed: 12/19/2022]
Abstract
The i-motif DNA, also known as i-DNA, is a non-canonical DNA secondary structure formed by cytosine-rich sequences, consisting of two intercalated parallel-stranded duplexes held together by hemi-protonated cytosine-cytosine+ (C:C+ ) base pairs. The growing interest in the i-DNA structure as a target in anticancer therapy increases the need for tools for a rapid and meaningful interpretation of the spectroscopic data of i-DNA samples. Herein, we analyzed the circular dichroism (CD) and thermal difference UV-absorbance spectra (TDS) of 255 DNA sequences by means of multivariate data analysis, aiming at unveiling peculiar spectral regions that could be used as diagnostic features during the analysis of i-DNA-forming sequences.
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Affiliation(s)
- Nunzia Iaccarino
- Department of PharmacyUniversity of Naples Federico IIVia D. Montesano 4980131NaplesItaly
| | - Mingpan Cheng
- State Key Laboratory of Analytical Chemistry for Life ScienceSchool of Chemistry & Chemical EngineeringNanjing UniversityNanjing210023China
- ARNA LaboratoryUniversité de BordeauxInserm U 1212, CNRS UMR5320IECB33607PessacFrance
| | - Dehui Qiu
- State Key Laboratory of Analytical Chemistry for Life ScienceSchool of Chemistry & Chemical EngineeringNanjing UniversityNanjing210023China
| | - Bruno Pagano
- Department of PharmacyUniversity of Naples Federico IIVia D. Montesano 4980131NaplesItaly
| | - Jussara Amato
- Department of PharmacyUniversity of Naples Federico IIVia D. Montesano 4980131NaplesItaly
| | - Anna Di Porzio
- Department of PharmacyUniversity of Naples Federico IIVia D. Montesano 4980131NaplesItaly
| | - Jun Zhou
- State Key Laboratory of Analytical Chemistry for Life ScienceSchool of Chemistry & Chemical EngineeringNanjing UniversityNanjing210023China
| | - Antonio Randazzo
- Department of PharmacyUniversity of Naples Federico IIVia D. Montesano 4980131NaplesItaly
| | - Jean‐Louis Mergny
- State Key Laboratory of Analytical Chemistry for Life ScienceSchool of Chemistry & Chemical EngineeringNanjing UniversityNanjing210023China
- ARNA LaboratoryUniversité de BordeauxInserm U 1212, CNRS UMR5320IECB33607PessacFrance
- Laboratoire d'Optique et BiosciencesEcole PolytechniqueCNRSINSERMInstitut Polytechnique de Paris91128PalaiseauFrance
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18
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Stefanucci A, Amato J, Brancaccio D, Pagano B, Randazzo A, Santoro F, Mayol L, Learte-Aymamí S, Rodriguez J, Mascareñas JL, Novellino E, Carotenuto A, Mollica A. A novel β-hairpin peptide derived from the ARC repressor selectively interacts with the major groove of B-DNA. Bioorg Chem 2021; 112:104836. [PMID: 33812270 DOI: 10.1016/j.bioorg.2021.104836] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 02/04/2021] [Accepted: 03/17/2021] [Indexed: 12/22/2022]
Abstract
Transcription factors (TFs) have a remarkable role in the homeostasis of the organisms and there is a growing interest in how they recognize and interact with specific DNA sequences. TFs recognize DNA using a variety of structural motifs. Among those, the ribbon-helix-helix (RHH) proteins, exemplified by the MetJ and ARC repressors, form dimers that insert antiparallel β-sheets into the major groove of DNA. A great chemical challenge consists of using the principles of DNA recognition by TFs to design minimized peptides that maintain the DNA affinity and specificity characteristics of the natural counterparts. In this context, a peptide mimic of an antiparallel β-sheet is very attractive since it can be obtained by a single peptide chain folding in a β-hairpin structure and can be as short as 14 amino acids or less. Herein, we designed eight linear and two cyclic dodeca-peptides endowed with β-hairpins. Their DNA binding properties have been investigated using fluorescence spectroscopy together with the conformational analysis through circular dichroism and solution NMR. We found that one of our peptides, peptide 6, is able to bind DNA, albeit without sequence selectivity. Notably, it shows a topological selectivity for the major groove of the DNA which is the interaction site of ARC and many other DNA-binding proteins. Moreover, we found that a type I' β-hairpin folding pattern is a favorite peptide structure for interaction with the B-DNA major groove. Peptide 6 is a valuable lead compound for the development of novel analogs with sequence selectivity.
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Affiliation(s)
- Azzurra Stefanucci
- Department of Pharmacy, University of Chieti-Pescara "G. d'Annunzio", Via dei Vestini 31, 66100 Chieti, Italy
| | - Jussara Amato
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131 Naples, Italy
| | - Diego Brancaccio
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131 Naples, Italy
| | - Bruno Pagano
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131 Naples, Italy
| | - Antonio Randazzo
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131 Naples, Italy
| | - Federica Santoro
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131 Naples, Italy
| | - Laura Mayol
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131 Naples, Italy
| | - Soraya Learte-Aymamí
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS), and Departamento de Química Orgánica. Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Jessica Rodriguez
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS), and Departamento de Química Orgánica. Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - José Luis Mascareñas
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS), and Departamento de Química Orgánica. Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Ettore Novellino
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131 Naples, Italy
| | - Alfonso Carotenuto
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131 Naples, Italy.
| | - Adriano Mollica
- Department of Pharmacy, University of Chieti-Pescara "G. d'Annunzio", Via dei Vestini 31, 66100 Chieti, Italy.
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19
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D’Aria F, Pagano B, Petraccone L, Giancola C. KRAS Promoter G-Quadruplexes from Sequences of Different Length: A Physicochemical Study. Int J Mol Sci 2021; 22:ijms22010448. [PMID: 33466280 PMCID: PMC7795837 DOI: 10.3390/ijms22010448] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 12/23/2020] [Accepted: 12/31/2020] [Indexed: 11/16/2022] Open
Abstract
DNA G-quadruplexes (G4s) form in relevant genomic regions and intervene in several biological processes, including the modulation of oncogenes expression, and are potential anticancer drug targets. The human KRAS proto-oncogene promoter region contains guanine-rich sequences able to fold into G4 structures. Here, by using circular dichroism and differential scanning calorimetry as complementary physicochemical methodologies, we compared the thermodynamic stability of the G4s formed by a shorter and a longer version of the KRAS promoter sequence, namely 5′-AGGGCGGTGTGGGAATAGGGAA-3′ (KRAS 22RT) and 5′-AGGGCGGTGTGGGAAGAGGGAAGAGGGGGAGG-3′ (KRAS 32R). Our results show that the unfolding mechanism of KRAS 32R is more complex than that of KRAS 22RT. The different thermodynamic stability is discussed based on the recently determined NMR structures. The binding properties of TMPyP4 and BRACO-19, two well-known G4-targeting anticancer compounds, to the KRAS G4s were also investigated. The present physicochemical study aims to help in choosing the best G4 target for potential anticancer drugs.
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Affiliation(s)
- Federica D’Aria
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano 49, 80131 Naples, Italy; (F.D.); (B.P.)
| | - Bruno Pagano
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano 49, 80131 Naples, Italy; (F.D.); (B.P.)
| | - Luigi Petraccone
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 4, 80126 Naples, Italy;
| | - Concetta Giancola
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano 49, 80131 Naples, Italy; (F.D.); (B.P.)
- Correspondence:
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20
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Pirota V, Platella C, Musumeci D, Benassi A, Amato J, Pagano B, Colombo G, Freccero M, Doria F, Montesarchio D. On the binding of naphthalene diimides to a human telomeric G-quadruplex multimer model. Int J Biol Macromol 2020; 166:1320-1334. [PMID: 33166559 DOI: 10.1016/j.ijbiomac.2020.11.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 11/02/2020] [Accepted: 11/03/2020] [Indexed: 02/07/2023]
Abstract
To selectively target telomeric G-quadruplex (G4) DNA, monomeric and dimeric naphthalene diimides (NDIs) were investigated as binders of multimeric G4 structures able to discriminate duplex DNA. These NDIs were analysed by the affinity chromatography-based screening G4-CPG (G-quadruplex on Controlled Pore Glass), using the sequence d[AGGG(TTAGGG)7] (tel46), folding into two consecutive G4s, as model of the human telomeric G4 multimer. In parallel, a telomeric G4 monomer (tel26) and a duplex structure (ds27) were used as controls. According to G4-CPG screening, NDI-5 proved to be the best ligand in terms of dimeric G4 vs. duplex DNA selectivity and was analysed by circular dichroism (CD), gel electrophoresis, isothermal titration calorimetry (ITC) and fluorescence spectroscopy in its interactions with tel46. NDI-5 strongly binds and stabilizes tel46 G4, favouring a hybrid folding in K+-containing buffer. Under these conditions, the binding process comprises a first event involving three molecules of NDI-5 and a second one in which other six molecules bind to the DNA. In a metal cation-free system, NDI-5 induces tel46 G4 folding, as indicated by CD and PAGE, favouring an antiparallel structuring. Docking simulations showed that NDI-5 can effectively bind to the pocket between two G4 units, representing a promising ligand for multimeric G4s.
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Affiliation(s)
- Valentina Pirota
- Department of Chemistry, University of Pavia, 27100 Pavia, Italy
| | - Chiara Platella
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy
| | - Domenica Musumeci
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy
| | | | - Jussara Amato
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy
| | - Bruno Pagano
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy
| | - Giorgio Colombo
- Department of Chemistry, University of Pavia, 27100 Pavia, Italy
| | - Mauro Freccero
- Department of Chemistry, University of Pavia, 27100 Pavia, Italy
| | - Filippo Doria
- Department of Chemistry, University of Pavia, 27100 Pavia, Italy.
| | - Daniela Montesarchio
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy.
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21
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Ogloblina AM, Iaccarino N, Capasso D, Di Gaetano S, Garzarella EU, Dolinnaya NG, Yakubovskaya MG, Pagano B, Amato J, Randazzo A. Toward G-Quadruplex-Based Anticancer Agents: Biophysical and Biological Studies of Novel AS1411 Derivatives. Int J Mol Sci 2020; 21:E7781. [PMID: 33096752 PMCID: PMC7590035 DOI: 10.3390/ijms21207781] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 10/17/2020] [Accepted: 10/19/2020] [Indexed: 12/16/2022] Open
Abstract
Certain G-quadruplex forming guanine-rich oligonucleotides (GROs), including AS1411, are endowed with cancer-selective antiproliferative activity. They are known to bind to nucleolin protein, resulting in the inhibition of nucleolin-mediated phenomena. However, multiple nucleolin-independent biological effects of GROs have also been reported, allowing them to be considered promising candidates for multi-targeted cancer therapy. Herein, with the aim of optimizing AS1411 structural features to find GROs with improved anticancer properties, we have studied a small library of AS1411 derivatives differing in the sequence length and base composition. The AS1411 derivatives were characterized by using circular dichroism and nuclear magnetic resonance spectroscopies and then investigated for their enzymatic resistance in serum and nuclear extract, as well as for their ability to bind nucleolin, inhibit topoisomerase I, and affect the viability of MCF-7 human breast adenocarcinoma cells. All derivatives showed higher thermal stability and inhibitory effect against topoisomerase I than AS1411. In addition, most of them showed an improved antiproliferative activity on MCF-7 cells compared to AS1411 despite a weaker binding to nucleolin. Our results support the hypothesis that the antiproliferative properties of GROs are due to multi-targeted effects.
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Affiliation(s)
- Anna M. Ogloblina
- N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health, 115478 Moscow, Russia; (A.M.O.); (M.G.Y.)
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano 49, 80131 Naples, Italy; (N.I.); (E.U.G.); (A.R.)
| | - Nunzia Iaccarino
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano 49, 80131 Naples, Italy; (N.I.); (E.U.G.); (A.R.)
| | - Domenica Capasso
- Center for Life Sciences and Technologies (CESTEV), University of Naples Federico II, Via A. De Amicis 95, 80145 Naples, Italy;
| | - Sonia Di Gaetano
- Institute of Biostructures and Bioimaging, National Research Council, Via Mezzocannone 16, 80134 Naples, Italy;
| | - Emanuele U. Garzarella
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano 49, 80131 Naples, Italy; (N.I.); (E.U.G.); (A.R.)
| | - Nina G. Dolinnaya
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia;
| | - Marianna G. Yakubovskaya
- N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health, 115478 Moscow, Russia; (A.M.O.); (M.G.Y.)
| | - Bruno Pagano
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano 49, 80131 Naples, Italy; (N.I.); (E.U.G.); (A.R.)
| | - Jussara Amato
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano 49, 80131 Naples, Italy; (N.I.); (E.U.G.); (A.R.)
| | - Antonio Randazzo
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano 49, 80131 Naples, Italy; (N.I.); (E.U.G.); (A.R.)
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22
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Amato J, Mashima T, Kamatari YO, Kuwata K, Novellino E, Randazzo A, Giancola C, Katahira M, Pagano B. Improved Anti-Prion Nucleic Acid Aptamers by Incorporation of Chemical Modifications. Nucleic Acid Ther 2020; 30:414-421. [PMID: 32991255 DOI: 10.1089/nat.2020.0899] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Nucleic acid aptamers are innovative and promising candidates to block the hallmark event in the prion diseases, that is the conversion of prion protein (PrP) into an abnormal form; however, they need chemical modifications for effective therapeutic activity. This communication reports on the development and biophysical characterization of a small library of chemically modified G-quadruplex-forming aptamers targeting the cellular PrP and the evaluation of their anti-prion activity. The results show the possibility of enhancing anti-prion aptamer properties through straightforward modifications.
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Affiliation(s)
- Jussara Amato
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Tsukasa Mashima
- Institute of Advanced Energy, Kyoto University, Uji, Japan.,Graduate School of Energy Science, Kyoto University, Uji, Japan
| | | | - Kazuo Kuwata
- United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Gifu, Japan
| | - Ettore Novellino
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Antonio Randazzo
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Concetta Giancola
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Masato Katahira
- Institute of Advanced Energy, Kyoto University, Uji, Japan.,Graduate School of Energy Science, Kyoto University, Uji, Japan
| | - Bruno Pagano
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
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23
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Gütschow M, Vanden Eynde JJ, Jampilek J, Kang C, Mangoni AA, Fossa P, Karaman R, Trabocchi A, Scott PJH, Reynisson J, Rapposelli S, Galdiero S, Winum JY, Brullo C, Prokai-Tatrai K, Sharma AK, Schapira M, Azuma YT, Cerchia L, Spetea M, Torri G, Collina S, Geronikaki A, García-Sosa AT, Vasconcelos MH, Sousa ME, Kosalec I, Tuccinardi T, Duarte IF, Salvador JAR, Bertinaria M, Pellecchia M, Amato J, Rastelli G, Gomes PAC, Guedes RC, Sabatier JM, Estévez-Braun A, Pagano B, Mangani S, Ragno R, Kokotos G, Brindisi M, González FV, Borges F, Miloso M, Rautio J, Muñoz-Torrero D. Breakthroughs in Medicinal Chemistry: New Targets and Mechanisms, New Drugs, New Hopes-7. Molecules 2020; 25:E2968. [PMID: 32605268 PMCID: PMC7412072 DOI: 10.3390/molecules25132968] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 06/23/2020] [Indexed: 02/06/2023] Open
Abstract
Breakthroughs in Medicinal Chemistry [...].
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Affiliation(s)
- Michael Gütschow
- Pharmaceutical Institute, Pharmaceutical & Medicinal Chemistry, University of Bonn, An der Immenburg 4, 53121 Bonn, Germany;
| | - Jean Jacques Vanden Eynde
- Formerly head of the Department of Organic Chemistry (FS), University of Mons-UMONS, 7000 Mons, Belgium;
| | - Josef Jampilek
- Department of Analytical Chemistry, Faculty of Natural Sciences, Comenius University, Ilkovicova 6, 842 15 Bratislava, Slovakia;
| | - CongBao Kang
- Experimental Drug Development Centre, Agency for Science, Technology and Research, 10 Biopolis Road, Chromos, 05-01, Singapore 138670, Singapore;
| | - Arduino A. Mangoni
- Discipline of Clinical Pharmacology, College of Medicine and Public Health, Flinders University and Flinders Medical Centre, Bedford Park, Adelaide 5042, Australia;
- Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, 01069 Dresden, Germany
| | - Paola Fossa
- Department of Pharmacy, School of Medical and Pharmaceutical Sciences, University of Genova, 16132 Genova, Italy;
| | - Rafik Karaman
- Pharmaceutical & Medicinal Chemistry Department, Faculty of Pharmacy, Al-Quds University, Jerusalem P.O. Box 20002, Palestine;
- Department of Sciences, University of Basilicata, Viadell’Ateneo Lucano 10, 85100 Potenza, Italy
| | - Andrea Trabocchi
- Department of Chemistry “Ugo Schiff”, University of Florence, via della Lastruccia 13, I-50019 Sesto Fiorentino, Florence, Italy;
| | - Peter J. H. Scott
- Department of Radiology, University of Michigan, Ann Arbor, MI 48109, USA;
| | - Jóhannes Reynisson
- School of Pharmacy and Bioengineering, Keele University, Keele, Staffordshire ST5 5BG, UK;
| | - Simona Rapposelli
- Laboratory of Medicinal Chemistry, Department of Pharmacy, University of Pisa, 56126 Pisa, Italy;
- Interdepartmental Research Centre of Ageing Biology and Pathology, University of Pisa, 56126 Pisa, Italy
| | - Stefania Galdiero
- Department of Pharmacy, University of Naples Federico II, Via Mezzocannone 16, 80134 Naples, Italy; (S.G.); (J.A.); (B.P.); (M.B.)
| | - Jean-Yves Winum
- Institut des Biomolécules Max Mousseron (IBMM) UMR 5247 CNRS, ENSCM, Université de Montpellier, CEDEX 05, 34296 Montpellier, France;
| | - Chiara Brullo
- Department of Pharmacy, Section of Medicinal Chemistry, University of Genoa, V.le Benedetto XV 3, I-16132 Genova, Italy;
| | - Katalin Prokai-Tatrai
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, 3500 Camp Bowie Blvd, Fort Worth, TX 76107, USA;
| | - Arun K. Sharma
- Department of Pharmacology, Penn State Cancer Institute, CH72, Penn State College of Medicine, 500 University Drive, Hershey, PA 17033, USA;
| | - Matthieu Schapira
- Structural Genomics Consortium, University of Toronto, MaRS Centre, South Tower, 101 College St., Suite 700, Toronto, ON M5G 1L7, Canada;
- Department of Pharmacology and Toxicology, University of Toronto, 1 King’s College Circle, Toronto, ON M5S 1A8, Canada
| | - Yasu-Taka Azuma
- Laboratory of Veterinary Pharmacology, Division of Veterinary Science, Osaka Prefecture University Graduate School of Life and Environmental Sciences, 1-58 Rinku-ohraikita, Izumisano, Osaka 598-8531, Japan;
| | - Laura Cerchia
- Institute of Experimental Endocrinology and Oncology “G. Salvatore” (IEOS), National Research Council (CNR), 80131 Naples, Italy;
| | - Mariana Spetea
- Department of Pharmaceutical Chemistry, Institute of Pharmacy and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, 6020 Innsbruck, Austria;
| | - Giangiacomo Torri
- Istituto di Ricerche Chimiche e Biochimiche “G. Ronzoni”, via Giuseppe Colombo 81, 20133 Milano, Italy;
| | - Simona Collina
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy;
| | - Athina Geronikaki
- Department of Pharmaceutical Chemistry, School of Pharmacy, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | | | - M. Helena Vasconcelos
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal;
- Cancer Drug Resistance Group-IPATIMUP-Institute of Molecular Pathology and Immunology of the University of Porto, Rua Júlio Amaral de Carvalho, 45, 4200-135 Porto, Portugal
- Department of Biological Sciences, FFUP-Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Maria Emília Sousa
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências, Químicas, Faculdade de Farmácia, Universidade do Porto, Rua Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal;
- Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N 4450-208 Matosinhos, Portugal
| | - Ivan Kosalec
- Faculty of Pharmacy and Biochemistry, University of Zagreb, A. Kovačića 1, HR-10000 Zagreb, Croatia;
| | - Tiziano Tuccinardi
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy;
| | - Iola F. Duarte
- Department of Chemistry, CICECO—Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - Jorge A. R. Salvador
- Laboratory of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal;
| | - Massimo Bertinaria
- Dipartimento di Scienza e Tecnologia del Farmaco, Università degli Studi di Torino, Via P. Giuria 9, 10125 Torino, Italy;
| | - Maurizio Pellecchia
- Division of Biomedical Sciences, School of Medicine, University of California Riverside, Riverside, CA 92521, USA;
| | - Jussara Amato
- Department of Pharmacy, University of Naples Federico II, Via Mezzocannone 16, 80134 Naples, Italy; (S.G.); (J.A.); (B.P.); (M.B.)
| | - Giulio Rastelli
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Giuseppe Campi 103, 41125 Modena, Italy;
| | - Paula A. C. Gomes
- LAQV-REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre 687, 4169-007 Porto, Portugal;
| | - Rita C. Guedes
- iMed.Ulisboa and Faculdade de Farmácia, Universidade de Lisboa, 1649-003 Lisbon, Portugal;
| | - Jean-Marc Sabatier
- Institute of NeuroPhysiopathology, UMR 7051, Faculté de Médecine Secteur Nord, 51, Boulevard Pierre Dramard-CS80011, CEDEX 15, 13344-Marseille, France;
| | - Ana Estévez-Braun
- Departamento de Química Orgánica, Instituto Universitario de Bio-Orgánica (CIBICAN), Universidad de La Laguna, 38206 Tenerife, Spain;
| | - Bruno Pagano
- Department of Pharmacy, University of Naples Federico II, Via Mezzocannone 16, 80134 Naples, Italy; (S.G.); (J.A.); (B.P.); (M.B.)
| | - Stefano Mangani
- Department of Biotechnology, Chemistry and Pharmacy, DoE 2018-2022, University of Siena, via Aldo Moro 2, 53100 Siena, Italy;
| | - Rino Ragno
- Department of Drug Chemistry and Technology, Rome Center for Molecular Design, Sapienza University, P.le Aldo Moro 5, 00185 Rome, Italy;
| | - George Kokotos
- Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, 15771 Athens, Greece;
| | - Margherita Brindisi
- Department of Pharmacy, University of Naples Federico II, Via Mezzocannone 16, 80134 Naples, Italy; (S.G.); (J.A.); (B.P.); (M.B.)
| | - Florenci V. González
- Departament de Química Inorgànica i Orgànica, Universitat Jaume I, 12080 Castelló, Spain;
| | - Fernanda Borges
- CIQUP/Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, R. Campo Alegre 1021/1055, 4169-007 Porto, Portugal;
| | - Mariarosaria Miloso
- School of Medicine and Surgery, Experimental Neurology Unit, University of Milano-Bicocca, Via Cadore 48, 20900 Monza, MB, Italy;
| | - Jarkko Rautio
- School of Pharmacy, Faculty of Health Sciences, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland;
| | - Diego Muñoz-Torrero
- Laboratory of Medicinal Chemistry, Faculty of Pharmacy and Food Sciences, and Institute of Biomedicine (IBUB), University of Barcelona, Av. Joan XXIII, 27-31, E-08028 Barcelona, Spain
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24
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Di Fonzo S, Amato J, D'Aria F, Caterino M, D'Amico F, Gessini A, Brady JW, Cesàro A, Pagano B, Giancola C. Ligand binding to G-quadruplex DNA: new insights from ultraviolet resonance Raman spectroscopy. Phys Chem Chem Phys 2020; 22:8128-8140. [PMID: 32246758 DOI: 10.1039/d0cp01022g] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
G-Quadruplexes (G4s) are noncanonical nucleic acid structures involved in the regulation of several biological processes of many organisms. The rational design of G4-targeting molecules developed as potential anticancer and antiviral therapeutics is a complex problem intrinsically due to the structural polymorphism of these peculiar DNA structures. The aim of the present work is to show how Ultraviolet Resonance Raman (UVRR) spectroscopy can complement other techniques in providing valuable information about ligand/G4 interactions in solution. Here, the binding of BRACO-19 and Pyridostatin - two of the most potent ligands - to selected biologically relevant G4s was investigated by polarized UVRR scattering at 266 nm. The results give new insights into the binding mode of these ligands to G4s having different sequences and topologies by performing an accurate analysis of peaks assigned to specific groups and their changes upon binding. Indeed, the UVRR data not only show that BRACO-19 and Pyridostatin interact with different G4 sites, but also shed light on the ligand and G4 chemical groups really involved in the interaction. In addition, UVRR results complemented by circular dichroism data clearly indicate that the binding mode of a ligand can also depend on the conformation(s) of the target G4. Overall, these findings demonstrate the utility of using UVRR spectroscopy in the investigation of G4s and G4-ligand interactions in solution.
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Affiliation(s)
- Silvia Di Fonzo
- Elettra-Sincrotrone Trieste S. C. p. A., Science Park, Trieste, I-34149, Italy.
| | - Jussara Amato
- Department of Pharmacy, University of Naples Federico II, Naples, I-80131, Italy.
| | - Federica D'Aria
- Department of Pharmacy, University of Naples Federico II, Naples, I-80131, Italy.
| | - Marco Caterino
- Department of Pharmacy, University of Naples Federico II, Naples, I-80131, Italy.
| | - Francesco D'Amico
- Elettra-Sincrotrone Trieste S. C. p. A., Science Park, Trieste, I-34149, Italy.
| | - Alessandro Gessini
- Elettra-Sincrotrone Trieste S. C. p. A., Science Park, Trieste, I-34149, Italy.
| | - John W Brady
- Department of Food Science, Cornell University, Ithaca, New York, NY 14853, USA
| | - Attilio Cesàro
- Elettra-Sincrotrone Trieste S. C. p. A., Science Park, Trieste, I-34149, Italy. and Department of Chemical and Pharmaceutical Sciences, University of Trieste, Trieste, I-34127, Italy
| | - Bruno Pagano
- Department of Pharmacy, University of Naples Federico II, Naples, I-80131, Italy.
| | - Concetta Giancola
- Department of Pharmacy, University of Naples Federico II, Naples, I-80131, Italy.
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25
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Amato J, Miglietta G, Morigi R, Iaccarino N, Locatelli A, Leoni A, Novellino E, Pagano B, Capranico G, Randazzo A. Monohydrazone Based G-Quadruplex Selective Ligands Induce DNA Damage and Genome Instability in Human Cancer Cells. J Med Chem 2020; 63:3090-3103. [PMID: 32142285 PMCID: PMC7997572 DOI: 10.1021/acs.jmedchem.9b01866] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
![]()
Targeting
G-quadruplex structures is currently viewed as a promising
anticancer strategy. Searching for potent and selective G-quadruplex
binders, here we describe a small series of new monohydrazone derivatives
designed as analogues of a lead which was proved to stabilize G-quadruplex
structures and increase R loop levels in human cancer cells. To investigate
the G-quadruplex binding properties of the new molecules, in vitro biophysical studies were performed employing both
telomeric and oncogene promoter G-quadruplex-forming sequences. The
obtained results allowed the identification of a highly selective
G-quadruplex ligand that, when studied in human cancer cells, proved
to be able to stabilize both G-quadruplexes and R loops and showed
a potent cell killing activity associated with the formation of micronuclei,
a clear sign of genome instability.
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Affiliation(s)
- Jussara Amato
- Department of Pharmacy, University of Naples Federico II, via D. Montesano 49, 80131 Naples, Italy
| | - Giulia Miglietta
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum - University of Bologna, 40126 Bologna, Italy
| | - Rita Morigi
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum - University of Bologna, 40126 Bologna, Italy
| | - Nunzia Iaccarino
- Department of Pharmacy, University of Naples Federico II, via D. Montesano 49, 80131 Naples, Italy
| | - Alessandra Locatelli
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum - University of Bologna, 40126 Bologna, Italy
| | - Alberto Leoni
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum - University of Bologna, 40126 Bologna, Italy
| | - Ettore Novellino
- Department of Pharmacy, University of Naples Federico II, via D. Montesano 49, 80131 Naples, Italy
| | - Bruno Pagano
- Department of Pharmacy, University of Naples Federico II, via D. Montesano 49, 80131 Naples, Italy
| | - Giovanni Capranico
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum - University of Bologna, 40126 Bologna, Italy
| | - Antonio Randazzo
- Department of Pharmacy, University of Naples Federico II, via D. Montesano 49, 80131 Naples, Italy
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Wenker Z, Pagano B, Wahab S, Wade G, Bari K, Safdar K, Schoech M, Anwar N, Makramalla A. 3:09 PM Abstract No. 318 Abnormal doppler findings in transjugular intrahepatic portosystemic shunt using the new GORE VIATORR controlled expansion endoprosthesis: a retrospective single-center analysis. J Vasc Interv Radiol 2020. [DOI: 10.1016/j.jvir.2019.12.373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Di Carluccio C, Crisman E, Manabe Y, Forgione RE, Lacetera A, Amato J, Pagano B, Randazzo A, Zampella A, Lanzetta R, Fukase K, Molinaro A, Crocker PR, Martín‐Santamaría S, Marchetti R, Silipo A. Cover Feature: Characterisation of the Dynamic Interactions between Complex
N
‐Glycans and Human CD22 (ChemBioChem 1‐2/2020). Chembiochem 2019. [DOI: 10.1002/cbic.201900762] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Cristina Di Carluccio
- Dipartimento di Scienze ChimicheComplesso Universitario Monte Sant'AngeloUniversità di Napoli Federico II Via Cintia 4 80126 Napoli Italy
| | - Enrique Crisman
- Department of Structural and Chemical BiologyCentro de Investigaciones BiológicasCIB-CSIC C/Ramiro de Maeztu, 9 28040 Madrid Spain
| | - Yoshiyuki Manabe
- Department of ChemistryGraduate School of ScienceOsaka University 1-1 Machikaneyama Toyonaka Osaka 560-0043 Japan
- Core for Medicine and Science Collaborative Research and EducationProject Research Center for Fundamental ScienceOsaka University 1-1 Machikaneyama Toyonaka Osaka 560-0043 Japan
| | - Rosa Ester Forgione
- Dipartimento di Scienze ChimicheComplesso Universitario Monte Sant'AngeloUniversità di Napoli Federico II Via Cintia 4 80126 Napoli Italy
| | - Alessandra Lacetera
- Department of Structural and Chemical BiologyCentro de Investigaciones BiológicasCIB-CSIC C/Ramiro de Maeztu, 9 28040 Madrid Spain
| | - Jussara Amato
- Department of PharmacyUniversity of Naples Federico II Via D. Montesano 49 80131 Naples Italy
| | - Bruno Pagano
- Department of PharmacyUniversity of Naples Federico II Via D. Montesano 49 80131 Naples Italy
| | - Antonio Randazzo
- Department of PharmacyUniversity of Naples Federico II Via D. Montesano 49 80131 Naples Italy
| | - Angela Zampella
- Department of PharmacyUniversity of Naples Federico II Via D. Montesano 49 80131 Naples Italy
| | - Rosa Lanzetta
- Dipartimento di Scienze ChimicheComplesso Universitario Monte Sant'AngeloUniversità di Napoli Federico II Via Cintia 4 80126 Napoli Italy
| | - Koichi Fukase
- Department of ChemistryGraduate School of ScienceOsaka University 1-1 Machikaneyama Toyonaka Osaka 560-0043 Japan
- Core for Medicine and Science Collaborative Research and EducationProject Research Center for Fundamental ScienceOsaka University 1-1 Machikaneyama Toyonaka Osaka 560-0043 Japan
| | - Antonio Molinaro
- Dipartimento di Scienze ChimicheComplesso Universitario Monte Sant'AngeloUniversità di Napoli Federico II Via Cintia 4 80126 Napoli Italy
- Department of ChemistryGraduate School of ScienceOsaka University 1-1 Machikaneyama Toyonaka Osaka 560-0043 Japan
| | - Paul R. Crocker
- Division of Cell Signalling and ImmunologySchool of Life SciencesUniversity of Dundee Dundee UK
| | - Sonsoles Martín‐Santamaría
- Department of Structural and Chemical BiologyCentro de Investigaciones BiológicasCIB-CSIC C/Ramiro de Maeztu, 9 28040 Madrid Spain
| | - Roberta Marchetti
- Dipartimento di Scienze ChimicheComplesso Universitario Monte Sant'AngeloUniversità di Napoli Federico II Via Cintia 4 80126 Napoli Italy
| | - Alba Silipo
- Dipartimento di Scienze ChimicheComplesso Universitario Monte Sant'AngeloUniversità di Napoli Federico II Via Cintia 4 80126 Napoli Italy
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Amato J, Cerofolini L, Brancaccio D, Giuntini S, Iaccarino N, Zizza P, Iachettini S, Biroccio A, Novellino E, Rosato A, Fragai M, Luchinat C, Randazzo A, Pagano B. Insights into telomeric G-quadruplex DNA recognition by HMGB1 protein. Nucleic Acids Res 2019; 47:9950-9966. [PMID: 31504744 PMCID: PMC6765150 DOI: 10.1093/nar/gkz727] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Revised: 08/02/2019] [Accepted: 08/15/2019] [Indexed: 01/21/2023] Open
Abstract
HMGB1 is a ubiquitous non-histone protein, which biological effects depend on its expression and subcellular location. Inside the nucleus, HMGB1 is engaged in many DNA events such as DNA repair, transcription and telomere maintenance. HMGB1 has been reported to bind preferentially to bent DNA as well as to noncanonical DNA structures like 4-way junctions and, more recently, to G-quadruplexes. These are four-stranded conformations of nucleic acids involved in important cellular processes, including telomere maintenance. In this frame, G-quadruplex recognition by specific proteins represents a key event to modulate physiological or pathological pathways. Herein, to get insights into the telomeric G-quadruplex DNA recognition by HMGB1, we performed detailed biophysical studies complemented with biological analyses. The obtained results provided information about the molecular determinants for the interaction and showed that the structural variability of human telomeric G-quadruplex DNA may have significant implications in HMGB1 recognition. The biological data identified HMGB1 as a telomere-associated protein in both telomerase-positive and -negative tumor cells and showed that HMGB1 gene silencing in such cells induces telomere DNA damage foci. Altogether, these findings provide a deeper understanding of telomeric G-quadruplex recognition by HMGB1 and suggest that this protein could actually represent a new target for cancer therapy.
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Affiliation(s)
- Jussara Amato
- Department of Pharmacy, University of Naples Federico II, via D. Montesano 49, 80131 Naples, Italy
| | - Linda Cerofolini
- Magnetic Resonance Center (CERM), University of Florence, via L. Sacconi 6, 50019 Sesto Fiorentino (FI), Italy
| | - Diego Brancaccio
- Department of Pharmacy, University of Naples Federico II, via D. Montesano 49, 80131 Naples, Italy
| | - Stefano Giuntini
- Magnetic Resonance Center (CERM), University of Florence, via L. Sacconi 6, 50019 Sesto Fiorentino (FI), Italy
| | - Nunzia Iaccarino
- Department of Pharmacy, University of Naples Federico II, via D. Montesano 49, 80131 Naples, Italy
| | - Pasquale Zizza
- Oncogenomic and Epigenetic Unit, IRCCS - Regina Elena National Cancer Institute, via Elio Chianesi 53, 00144 Rome, Italy
| | - Sara Iachettini
- Oncogenomic and Epigenetic Unit, IRCCS - Regina Elena National Cancer Institute, via Elio Chianesi 53, 00144 Rome, Italy
| | - Annamaria Biroccio
- Oncogenomic and Epigenetic Unit, IRCCS - Regina Elena National Cancer Institute, via Elio Chianesi 53, 00144 Rome, Italy
| | - Ettore Novellino
- Department of Pharmacy, University of Naples Federico II, via D. Montesano 49, 80131 Naples, Italy
| | - Antonio Rosato
- Magnetic Resonance Center (CERM), University of Florence, via L. Sacconi 6, 50019 Sesto Fiorentino (FI), Italy
| | - Marco Fragai
- Magnetic Resonance Center (CERM), University of Florence, via L. Sacconi 6, 50019 Sesto Fiorentino (FI), Italy
| | - Claudio Luchinat
- Magnetic Resonance Center (CERM), University of Florence, via L. Sacconi 6, 50019 Sesto Fiorentino (FI), Italy
| | - Antonio Randazzo
- Department of Pharmacy, University of Naples Federico II, via D. Montesano 49, 80131 Naples, Italy
| | - Bruno Pagano
- Department of Pharmacy, University of Naples Federico II, via D. Montesano 49, 80131 Naples, Italy
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Catalano R, Moraca F, Amato J, Cristofari C, Rigo R, Via LD, Rocca R, Lupia A, Maruca A, Costa G, Catalanotti B, Artese A, Pagano B, Randazzo A, Sissi C, Novellino E, Alcaro S. Targeting multiple G-quadruplex–forming DNA sequences: Design, biophysical and biological evaluations of indolo-naphthyridine scaffold derivatives. Eur J Med Chem 2019; 182:111627. [DOI: 10.1016/j.ejmech.2019.111627] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 08/02/2019] [Accepted: 08/14/2019] [Indexed: 11/25/2022]
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Pelliccia S, Amato J, Capasso D, Di Gaetano S, Massarotti A, Piccolo M, Irace C, Tron GC, Pagano B, Randazzo A, Novellino E, Giustiniano M. Bio-Inspired Dual-Selective BCL-2/c-MYC G-Quadruplex Binders: Design, Synthesis, and Anticancer Activity of Drug-like Imidazo[2,1-i]purine Derivatives. J Med Chem 2019; 63:2035-2050. [DOI: 10.1021/acs.jmedchem.9b00262] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Sveva Pelliccia
- Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131 Naples, Italy
| | - Jussara Amato
- Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131 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
| | - Alberto Massarotti
- Department of Pharmaceutical Sciences, University of Piemonte Orientale, Largo Donegani 2, 28100 Novara, Italy
| | - Marialuisa Piccolo
- Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131 Naples, Italy
| | - Carlo Irace
- Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131 Naples, Italy
| | - Gian Cesare Tron
- Department of Pharmaceutical Sciences, University of Piemonte Orientale, Largo Donegani 2, 28100 Novara, Italy
| | - Bruno Pagano
- Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131 Naples, Italy
| | - Antonio Randazzo
- Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131 Naples, Italy
| | - Ettore Novellino
- Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131 Naples, Italy
| | - Mariateresa Giustiniano
- Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131 Naples, Italy
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Iaccarino N, Amato J, Pagano B, Di Porzio A, Micucci M, Bolelli L, Aldini R, Novellino E, Budriesi R, Randazzo A. Impact of phytosterols on liver and distal colon metabolome in experimental murine colitis model: an explorative study. J Enzyme Inhib Med Chem 2019; 34:1041-1050. [PMID: 31074304 PMCID: PMC6522980 DOI: 10.1080/14756366.2019.1611802] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Phytosterols are known to reduce plasma cholesterol levels and thereby reduce cardiovascular risk. Studies conducted on human and animal models have demonstrated that these compounds have also anti-inflammatory effects. Recently, an experimental colitis model (dextran sulphate sodium-induced) has shown that pre-treatment with phytosterols decreases infiltration of inflammatory cells and accelerates mucosal healing. This study aims to understand the mechanism underlying the colitis by analysing the end-products of the metabolism in distal colon and liver excised from the same mice used in the previous work. In particular, an unsupervised gas chromatography-mass spectrometry (GC-MS) and NMR based metabolomics approach was employed to identify the metabolic pathways perturbed by the dextran sodium sulphate (DSS) insult (i.e. Krebs cycle, carbohydrate, amino acids, and nucleotide metabolism). Interestingly, phytosterols were able to restore the homeostatic equilibrium of the hepatic and colonic metabolome.
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Affiliation(s)
- Nunzia Iaccarino
- a Department of Pharmacy , University of Naples Federico II , Naples , Italy
| | - Jussara Amato
- a Department of Pharmacy , University of Naples Federico II , Naples , Italy
| | - Bruno Pagano
- a Department of Pharmacy , University of Naples Federico II , Naples , Italy
| | - Anna Di Porzio
- a Department of Pharmacy , University of Naples Federico II , Naples , Italy
| | - Matteo Micucci
- b Department of Pharmacy and Biotechnology , University of Bologna , Bologna , Italy
| | - Luca Bolelli
- b Department of Pharmacy and Biotechnology , University of Bologna , Bologna , Italy
| | - Rita Aldini
- b Department of Pharmacy and Biotechnology , University of Bologna , Bologna , Italy
| | - Ettore Novellino
- a Department of Pharmacy , University of Naples Federico II , Naples , Italy
| | - Roberta Budriesi
- b Department of Pharmacy and Biotechnology , University of Bologna , Bologna , Italy
| | - Antonio Randazzo
- a Department of Pharmacy , University of Naples Federico II , Naples , Italy
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Khristenko N, Amato J, Livet S, Pagano B, Randazzo A, Gabelica V. Native Ion Mobility Mass Spectrometry: When Gas-Phase Ion Structures Depend on the Electrospray Charging Process. J Am Soc Mass Spectrom 2019; 30:1069-1081. [PMID: 30924079 DOI: 10.1007/s13361-019-02152-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 02/08/2019] [Accepted: 02/08/2019] [Indexed: 06/09/2023]
Abstract
Ion mobility spectrometry (IMS) has become popular to characterize biomolecule folding. Numerous studies have shown that proteins that are folded in solution remain folded in the gas phase, whereas proteins that are unfolded in solution adopt more extended conformations in the gas phase. Here, we discuss how general this tenet is. We studied single-stranded DNAs (human telomeric cytosine-rich sequences with CCCTAA repeats), which fold into an intercalated motif (i-motif) structure in a pH-dependent manner, thanks to the formation of C-H+-C base pairs. As i-motif formation is favored at low ionic strength, we could investigate the ESI-IMS-MS behavior of i-motif structures at pH ~ 5.5 over a wide range of ammonium acetate concentrations (15 to 100 mM). The control experiments consisted of either the same sequence at pH ~ 7.5, wherein the sequence is unfolded, or sequence variants that cannot form i-motifs (CTCTAA repeats). The surprising results came from the control experiments. We found that the ionic strength of the solution had a greater effect on the compactness of the gas-phase structures than the solution folding state. This means that electrosprayed ions keep a memory of the charging process, which is influenced by the electrolyte concentration. We discuss these results in light of the analyte partitioning between the droplet interior and the droplet surface, which in turn influences the probability of being ionized via a charged residue-type pathway or a chain extrusion-type pathway.
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Affiliation(s)
- Nina Khristenko
- Laboratoire Acides Nucléiques: Régulations Naturelle et Artificielle, Université de Bordeaux, Inserm & CNRS (ARNA, U1212, UMR5320), IECB, 2 rue Robert Escarpit, 33607, Pessac, France
| | - Jussara Amato
- Department of Pharmacy, University of Naples Federico II, via Domenico Montesano 49, 80131, Naples, Italy
| | - Sandrine Livet
- Laboratoire Acides Nucléiques: Régulations Naturelle et Artificielle, Université de Bordeaux, Inserm & CNRS (ARNA, U1212, UMR5320), IECB, 2 rue Robert Escarpit, 33607, Pessac, France
| | - Bruno Pagano
- Department of Pharmacy, University of Naples Federico II, via Domenico Montesano 49, 80131, Naples, Italy
| | - Antonio Randazzo
- Department of Pharmacy, University of Naples Federico II, via Domenico Montesano 49, 80131, Naples, Italy
| | - Valérie Gabelica
- Laboratoire Acides Nucléiques: Régulations Naturelle et Artificielle, Université de Bordeaux, Inserm & CNRS (ARNA, U1212, UMR5320), IECB, 2 rue Robert Escarpit, 33607, Pessac, France.
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Pagano B, Iaccarino N, Di Porzio A, Randazzo A, Amato J. Screening of DNA G-quadruplex stabilizing ligands by nano differential scanning fluorimetry. Analyst 2019; 144:6512-6516. [DOI: 10.1039/c9an01463b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A proof of principle study on the use of nanoDSF as a screening tool for G-quadruplex targeting compounds.
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Affiliation(s)
- Bruno Pagano
- Department of Pharmacy
- University of Naples Federico II
- 80131 Naples
- Italy
| | - Nunzia Iaccarino
- Department of Pharmacy
- University of Naples Federico II
- 80131 Naples
- Italy
| | - Anna Di Porzio
- Department of Pharmacy
- University of Naples Federico II
- 80131 Naples
- Italy
| | - Antonio Randazzo
- Department of Pharmacy
- University of Naples Federico II
- 80131 Naples
- Italy
| | - Jussara Amato
- Department of Pharmacy
- University of Naples Federico II
- 80131 Naples
- Italy
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Amato J, Platella C, Iachettini S, Zizza P, Musumeci D, Cosconati S, Pagano A, Novellino E, Biroccio A, Randazzo A, Pagano B, Montesarchio D. Tailoring a lead-like compound targeting multiple G-quadruplex structures. Eur J Med Chem 2018; 163:295-306. [PMID: 30529547 DOI: 10.1016/j.ejmech.2018.11.058] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 10/30/2018] [Accepted: 11/23/2018] [Indexed: 11/27/2022]
Abstract
A focused library of analogs of a lead-like G-quadruplex (G4) targeting compound (4), sharing a furobenzoxazine naphthoquinone core and differing for the pendant groups on the N-atom of the oxazine ring, has been here analyzed with the aim of developing more potent and selective ligands. These molecules have been tested vs. topologically different G4s by the G4-CPG assay, an affinity chromatography-based method for screening putative G4 ligands. The obtained results showed that all these compounds were able to bind several G4 structures, both telomeric and extra-telomeric, thus behaving as multi-target ligands, and two of them fully discriminated G4 vs. duplex DNA. Biological assays proved that almost all the compounds produced effective DNA damage, showing marked antiproliferative effects on tumor cells in the low μM range. Combined analysis of the G4-CPG binding assays and biological data led us to focus on compound S4-5, proved to be less cytotoxic than the parent compound 4 on normal cells. An in-depth biophysical characterization of the binding of S4-5 to different G4s showed that the here identified ligand has higher affinity for the G4s and higher ability to discriminate G4 vs. duplex DNA than 4. Molecular docking studies, in agreement with the NMR data, suggest that S4-5 interacts with the accessible grooves of the target G4 structures, giving clues for its increased G4 vs. duplex selectivity.
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Affiliation(s)
- Jussara Amato
- Department of Pharmacy, University of Naples Federico II, 80131, Naples, Italy
| | - Chiara Platella
- Department of Chemical Sciences, University of Naples Federico II, 80126, Naples, Italy
| | - Sara Iachettini
- Oncogenomic and Epigenetic Unit, IRCCS - Regina Elena National Cancer Institute, 00144 Rome, Italy
| | - Pasquale Zizza
- Oncogenomic and Epigenetic Unit, IRCCS - Regina Elena National Cancer Institute, 00144 Rome, Italy
| | - Domenica Musumeci
- Department of Chemical Sciences, University of Naples Federico II, 80126, Naples, Italy
| | - Sandro Cosconati
- DiSTABiF, Università della Campania Luigi Vanvitelli, 81100, Caserta, Italy
| | - Alessia Pagano
- Department of Pharmacy, University of Naples Federico II, 80131, Naples, Italy
| | - Ettore Novellino
- Department of Pharmacy, University of Naples Federico II, 80131, Naples, Italy
| | - Annamaria Biroccio
- Oncogenomic and Epigenetic Unit, IRCCS - Regina Elena National Cancer Institute, 00144 Rome, Italy
| | - Antonio Randazzo
- Department of Pharmacy, University of Naples Federico II, 80131, Naples, Italy
| | - Bruno Pagano
- Department of Pharmacy, University of Naples Federico II, 80131, Naples, Italy.
| | - Daniela Montesarchio
- Department of Chemical Sciences, University of Naples Federico II, 80126, Naples, Italy.
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Amato J, Madanayake TW, Iaccarino N, Novellino E, Randazzo A, Hurley LH, Pagano B. HMGB1 binds to the KRAS promoter G-quadruplex: a new player in oncogene transcriptional regulation? Chem Commun (Camb) 2018; 54:9442-9445. [PMID: 30079419 PMCID: PMC6234227 DOI: 10.1039/c8cc03614d] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
This communication reports on a possible distinct role of HMGB1 protein. Biophysical studies revealed that HMGB1 binds and stabilizes the G-quadruplex of the KRAS promoter element that is responsible for most of the transcriptional activity. Biological data showed that inhibition of HMGB1 increases KRAS expression. These results suggest that HMGB1 could play a role in the gene transcriptional regulation via the functional recognition of the G-quadruplex.
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Affiliation(s)
- Jussara Amato
- Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131 Naples, Italy.
| | - Thushara W. Madanayake
- College of Pharmacy, University of Arizona, 1703 East Mabel Street, Tucson, Arizona 85721, United States
| | - Nunzia Iaccarino
- Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131 Naples, Italy.
| | - Ettore Novellino
- Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131 Naples, Italy.
| | - Antonio Randazzo
- Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131 Naples, Italy.
| | - Laurence H. Hurley
- College of Pharmacy, University of Arizona, 1703 East Mabel Street, Tucson, Arizona 85721, United States
| | - Bruno Pagano
- Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131 Naples, Italy.
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Pagano A, Iaccarino N, Abdelhamid MAS, Brancaccio D, Garzarella EU, Di Porzio A, Novellino E, Waller ZAE, Pagano B, Amato J, Randazzo A. Common G-Quadruplex Binding Agents Found to Interact With i-Motif-Forming DNA: Unexpected Multi-Target-Directed Compounds. Front Chem 2018; 6:281. [PMID: 30137743 PMCID: PMC6066642 DOI: 10.3389/fchem.2018.00281] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 06/22/2018] [Indexed: 11/26/2022] Open
Abstract
G-quadruplex (G4) and i-motif (iM) are four-stranded non-canonical nucleic acid structural arrangements. Recent evidences suggest that these DNA structures exist in living cells and could be involved in several cancer-related processes, thus representing an attractive target for anticancer drug discovery. Efforts toward the development of G4 targeting compounds have led to a number of effective bioactive ligands. Herein, employing several biophysical methodologies, we studied the ability of some well-known G4 ligands to interact with iM-forming DNA. The data showed that the investigated compounds are actually able to interact with both DNA in vitro, thus acting de facto as multi-target-directed agents. Interestingly, while all the compounds stabilize the G4, some of them significantly reduce the stability of the iM. The present study highlights the importance, when studying G4-targeting compounds, of evaluating also their behavior toward the i-motif counterpart.
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Affiliation(s)
- Alessia Pagano
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Nunzia Iaccarino
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Mahmoud A S Abdelhamid
- School of Pharmacy, University of East Anglia, Norwich Research Park, Norwich, United Kingdom
| | - Diego Brancaccio
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | | | - Anna Di Porzio
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Ettore Novellino
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Zoë A E Waller
- School of Pharmacy, University of East Anglia, Norwich Research Park, Norwich, United Kingdom.,Centre for Molecular and Structural Biochemistry, University of East Anglia, Norwich Research Park, Norwich, United Kingdom
| | - Bruno Pagano
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Jussara Amato
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Antonio Randazzo
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
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Platella C, Musumeci D, Arciello A, Doria F, Freccero M, Randazzo A, Amato J, Pagano B, Montesarchio D. Controlled Pore Glass-based oligonucleotide affinity support: towards High Throughput Screening methods for the identification of conformation-selective G-quadruplex ligands. Anal Chim Acta 2018; 1030:133-141. [PMID: 30032762 DOI: 10.1016/j.aca.2018.04.071] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 04/27/2018] [Accepted: 04/30/2018] [Indexed: 10/17/2022]
Abstract
Target selectivity is one of the main challenges in the search for small molecules able to act as effective and non-toxic anticancer and/or antiviral drugs. To achieve this goal, handy, rapid and reliable High Throughput Screening methodologies are needed. We here describe a novel functionalization for the solid phase synthesis of oligonucleotides on Controlled Pore Glass, including a flexible hexaethylene glycol spacer linking the first nucleoside through the nucleobase via a covalent bond stable to the final deprotection step. This allowed us preparing fully deprotected oligonucleotides still covalently attached to their supports. In detail, on this support we performed both the on-line synthesis of different secondary structure-forming oligonucleotides and the affinity chromatography-based screenings of conformation-selective G-quadruplex ligands. By using a fluorescent core-extended naphthalene diimide with different emitting response upon binding to sequences folding into G-quadruplexes of different topologies, we have been able to discriminate not only G-quadruplex vs. duplex DNA structures, but also different G-quadruplex conformations on the glass beads by confocal microscopy.
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Affiliation(s)
- Chiara Platella
- Department of Chemical Sciences, University of Naples Federico II, via Cintia 21, 80126, Naples, Italy
| | - Domenica Musumeci
- Department of Chemical Sciences, University of Naples Federico II, via Cintia 21, 80126, Naples, Italy
| | - Angela Arciello
- Department of Chemical Sciences, University of Naples Federico II, via Cintia 21, 80126, Naples, Italy
| | - Filippo Doria
- Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100, Pavia, Italy
| | - Mauro Freccero
- Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100, Pavia, Italy
| | - Antonio Randazzo
- Department of Pharmacy, University of Naples Federico II, via D. Montesano 49, 80131, Naples, Italy
| | - Jussara Amato
- Department of Pharmacy, University of Naples Federico II, via D. Montesano 49, 80131, Naples, Italy
| | - Bruno Pagano
- Department of Pharmacy, University of Naples Federico II, via D. Montesano 49, 80131, Naples, Italy
| | - Daniela Montesarchio
- Department of Chemical Sciences, University of Naples Federico II, via Cintia 21, 80126, Naples, Italy.
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Amato J, Pagano A, Capasso D, Di Gaetano S, Giustiniano M, Novellino E, Randazzo A, Pagano B. Targeting the BCL2 Gene Promoter G-Quadruplex with a New Class of Furopyridazinone-Based Molecules. ChemMedChem 2018; 13:406-410. [PMID: 29345419 DOI: 10.1002/cmdc.201700749] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 01/17/2018] [Indexed: 12/11/2022]
Abstract
Targeting of G-quadruplex-forming DNA in the BCL2 gene promoter to inhibit the expression of anti-apoptotic Bcl-2 protein is an attractive approach to cancer treatment. So far, efforts made in the discovery of molecules that are able to target the BCL2 G-quadruplex have succeeded mainly in the identification of ligands with poor drug-like properties. Here, a small series of furo[2,3-d]pyridazin-4(5H)-one derivatives were evaluated as a new class of drug-like G-quadruplex-targeting compounds. Biophysical studies showed that two derivatives could effectively bind to BCL2 G-quadruplex with good selectivity. Moreover, one such ligand was found to appreciably inhibit BCL2 gene transcription, with a substantial decrease in protein expression levels, and also showed significant cytotoxicity toward the Jurkat human T-lymphoblastoid cell line.
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Affiliation(s)
- Jussara Amato
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131, Naples, Italy
| | - Alessia Pagano
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131, 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
| | - Mariateresa Giustiniano
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131, Naples, Italy
| | - Ettore Novellino
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131, Naples, Italy
| | - Antonio Randazzo
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131, Naples, Italy
| | - Bruno Pagano
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131, Naples, Italy
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Salvati E, Botta L, Amato J, Di Leva FS, Zizza P, Gioiello A, Pagano B, Graziani G, Tarsounas M, Randazzo A, Novellino E, Biroccio A, Cosconati S. Lead Discovery of Dual G-Quadruplex Stabilizers and Poly(ADP-ribose) Polymerases (PARPs) Inhibitors: A New Avenue in Anticancer Treatment. J Med Chem 2017; 60:3626-3635. [PMID: 28445046 DOI: 10.1021/acs.jmedchem.6b01563] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
G-quadruplex stabilizers are an established opportunity in anticancer chemotherapy. To circumvent the antiproliferative effects of G4 ligands, cancer cells recruit PARP enzymes at telomeres. Herein, starting from the structural similarity of a potent G4 ligand previously discovered by our group and a congeneric PARP inhibitor, a library of derivatives was synthesized to discover the first dual G4/PARP ligand. We demonstrate that a properly decorated thieno[3,2-c]quinolin-4(5H)-one stabilizes the G4 fold in vitro and in cells, induces a DNA damage response localized to telomeres, inhibits PARylation in cells, and has an antiproliferative effect in BRCA2 deficient tumor cells.
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Affiliation(s)
- Erica Salvati
- Oncogenomic and Epigenetic Unit, Regina Elena National Cancer Institute , 00158 Rome, Italy
| | - Lorenzo Botta
- Department of Pharmacy, University of Naples "Federico II" , 80131 Naples, Italy
| | - Jussara Amato
- Department of Pharmacy, University of Naples "Federico II" , 80131 Naples, Italy
| | | | - Pasquale Zizza
- Oncogenomic and Epigenetic Unit, Regina Elena National Cancer Institute , 00158 Rome, Italy
| | - Antimo Gioiello
- Department of Pharmaceutical Science, University of Perugia , I-06123 Perugia, Italy
| | - Bruno Pagano
- Department of Pharmacy, University of Naples "Federico II" , 80131 Naples, Italy
| | - Grazia Graziani
- Department of Systems Medicine, University of "Tor Vergata" , 00173 Rome, Italy
| | - Madalena Tarsounas
- Genome Stability and Tumourigenesis Group, Department of Oncology, CRUK/MRC Oxford Institute for Radiation Oncology, University of Oxford , Old Road Campus Research Building, Oxford OX3 7DQ, U.K
| | - Antonio Randazzo
- Department of Pharmacy, University of Naples "Federico II" , 80131 Naples, Italy
| | - Ettore Novellino
- Department of Pharmacy, University of Naples "Federico II" , 80131 Naples, Italy
| | - Annamaria Biroccio
- Oncogenomic and Epigenetic Unit, Regina Elena National Cancer Institute , 00158 Rome, Italy
| | - Sandro Cosconati
- DiSTABiF, University of Campania Luigi Vanvitelli , 81100 Caserta, Italy
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Gajarský M, Živković ML, Stadlbauer P, Pagano B, Fiala R, Amato J, Tomáška L, Šponer J, Plavec J, Trantírek L. Structure of a Stable G-Hairpin. J Am Chem Soc 2017; 139:3591-3594. [PMID: 28217994 DOI: 10.1021/jacs.6b10786] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
In this study, we report the first atomic resolution structure of a stable G-hairpin formed by a natively occurring DNA sequence. An 11-nt long G-rich DNA oligonucleotide, 5'-d(GTGTGGGTGTG)-3', corresponding to the most abundant sequence motif in irregular telomeric DNA from Saccharomyces cerevisiae (yeast), is demonstrated to adopt a novel type of mixed parallel/antiparallel fold-back DNA structure, which is stabilized by dynamic G:G base pairs that transit between N1-carbonyl symmetric and N1-carbonyl, N7-amino base-pairing arrangements. Although the studied sequence first appears to possess a low capacity for base pairing, it forms a thermodynamically stable structure with a rather complex topology that includes a chain reversal arrangement of the backbone in the center of the continuous G-tract and 3'-to-5' stacking of the terminal residues. The structure reveals previously unknown principles of the folding of G-rich oligonucleotides that could be applied to the prediction of natural and/or the design of artificial recognition DNA elements. The structure also demonstrates that the folding landscapes of short DNA single strands is much more complex than previously assumed.
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Affiliation(s)
- Martin Gajarský
- Central European Institute of Technology, Masaryk University , Kamenice 753/5, 62500 Brno, Czech Republic
| | | | - Petr Stadlbauer
- Institute of Biophysics, v.v.i., Academy of Sciences of the Czech Republic , Kralovopolska 135, 61265 Brno, Czech Republic
| | - Bruno Pagano
- Department of Pharmacy, University of Naples "Federico II" , Via D. Montesano 49, I-80131 Naples, Italy
| | - Radovan Fiala
- Central European Institute of Technology, Masaryk University , Kamenice 753/5, 62500 Brno, Czech Republic
| | - Jussara Amato
- Department of Pharmacy, University of Naples "Federico II" , Via D. Montesano 49, I-80131 Naples, Italy
| | - L'ubomír Tomáška
- Department of Genetics, Faculty of Natural Sciences, Comenius University , Mlynska dolina B-1, Ilkovicova 6, 84215 Bratislava, Slovakia
| | - Jiří Šponer
- Central European Institute of Technology, Masaryk University , Kamenice 753/5, 62500 Brno, Czech Republic.,Institute of Biophysics, v.v.i., Academy of Sciences of the Czech Republic , Kralovopolska 135, 61265 Brno, Czech Republic
| | - Janez Plavec
- Slovenian NMR Centre, National Institute of Chemistry , Hajdrihova 19, SI-1000 Ljubljana, Slovenia.,EN-FIST Centre of Excellence , Trg Osvobodilne fronte 13, SI-1001 Ljubljana, Slovenia.,Faculty of Chemistry and Chemical Technology, University of Ljubljana , Večna pot 113, SI-1000 Ljubljana, Slovenia
| | - Lukáš Trantírek
- Central European Institute of Technology, Masaryk University , Kamenice 753/5, 62500 Brno, Czech Republic
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Musumeci D, Amato J, Zizza P, Platella C, Cosconati S, Cingolani C, Biroccio A, Novellino E, Randazzo A, Giancola C, Pagano B, Montesarchio D. Tandem application of ligand-based virtual screening and G4-OAS assay to identify novel G-quadruplex-targeting chemotypes. Biochim Biophys Acta Gen Subj 2017; 1861:1341-1352. [PMID: 28130159 DOI: 10.1016/j.bbagen.2017.01.024] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2016] [Revised: 01/16/2017] [Accepted: 01/23/2017] [Indexed: 11/29/2022]
Abstract
BACKGROUND G-quadruplex (G4) structures are key elements in the regulation of cancer cell proliferation and their targeting is deemed to be a promising strategy in anticancer therapy. METHODS A tandem application of ligand-based virtual screening (VS) calculations together with the experimental G-quadruplex on Oligo Affinity Support (G4-OAS) assay was employed to discover novel G4-targeting compounds. The interaction of the selected compounds with the investigated G4 in solution was analysed through a series of biophysical techniques and their biological activity investigated by immunofluorescence and MTT assays. RESULTS A focused library of 60 small molecules, designed as putative G4 groove binders, was identified through the VS. The G4-OAS experimental screening led to the selection of 7 ligands effectively interacting with the G4-forming human telomeric DNA. Evaluation of the biological activity of the selected compounds showed that 3 ligands of this sub-library induced a marked telomere-localized DNA damage response in human tumour cells. CONCLUSIONS The combined application of virtual and experimental screening tools proved to be a successful strategy to identify new bioactive chemotypes able to target the telomeric G4 DNA. These compounds may represent useful leads for the development of more potent and selective G4 ligands. GENERAL SIGNIFICANCE Expanding the repertoire of the available G4-targeting chemotypes with improved physico-chemical features, in particular aiming at the discovery of novel, selective G4 telomeric ligands, can help in developing effective anti-cancer drugs with fewer side effects. This article is part of a Special Issue entitled "G-quadruplex" Guest Editor: Dr. Concetta Giancola and Dr. Daniela Montesarchio.
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Affiliation(s)
- Domenica Musumeci
- Department of Chemical Sciences, University of Naples Federico II, Naples 80126, Italy
| | - Jussara Amato
- Department of Pharmacy, University of Naples Federico II, Naples 80131, Italy
| | - Pasquale Zizza
- Oncogenomic and Epigenetic Unit, Regina Elena National Cancer Institute, Rome 00144, Italy
| | - Chiara Platella
- Department of Chemical Sciences, University of Naples Federico II, Naples 80126, Italy
| | | | - Chiara Cingolani
- Oncogenomic and Epigenetic Unit, Regina Elena National Cancer Institute, Rome 00144, Italy
| | - Annamaria Biroccio
- Oncogenomic and Epigenetic Unit, Regina Elena National Cancer Institute, Rome 00144, Italy
| | - Ettore Novellino
- Department of Pharmacy, University of Naples Federico II, Naples 80131, Italy
| | - Antonio Randazzo
- Department of Pharmacy, University of Naples Federico II, Naples 80131, Italy
| | - Concetta Giancola
- Department of Pharmacy, University of Naples Federico II, Naples 80131, Italy
| | - Bruno Pagano
- Department of Pharmacy, University of Naples Federico II, Naples 80131, Italy.
| | - Daniela Montesarchio
- Department of Chemical Sciences, University of Naples Federico II, Naples 80126, Italy.
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Amato J, Pagano A, Cosconati S, Amendola G, Fotticchia I, Iaccarino N, Marinello J, De Magis A, Capranico G, Novellino E, Pagano B, Randazzo A. Discovery of the first dual G-triplex/G-quadruplex stabilizing compound: a new opportunity in the targeting of G-rich DNA structures? Biochim Biophys Acta Gen Subj 2016; 1861:1271-1280. [PMID: 27836755 DOI: 10.1016/j.bbagen.2016.11.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 11/03/2016] [Accepted: 11/05/2016] [Indexed: 11/17/2022]
Abstract
BACKGROUND Guanine-rich DNA motifs can form non-canonical structures known as G-quadruplexes, whose role in tumorigenic processes makes them attractive drug-target candidates for cancer therapy. Recent studies revealed that the folding and unfolding pathways of G-quadruplexes proceed through a quite stable intermediate named G-triplex. METHODS Virtual screening was employed to identify a small set of putative G-triplex ligands. The G-triplex stabilizing properties of these compounds were analyzed by CD melting assay. DSC, non-denaturing gel electrophoresis, NMR and molecular modeling studies were performed to investigate the interaction between the selected compound 1 and G-rich DNA structures. Cytotoxic activity of 1 was evaluated by MTT cell proliferation assay. RESULTS The experiments led to the identification of a promising hit that was shown to bind preferentially to G-triplex and parallel-stranded G-quadruplexes over duplex and antiparallel G-quadruplexes. Molecular modeling results suggested a partial end-stacking of 1 to the external G-triad/G-tetrads as a binding mode. Biological assays showed that 1 is endowed with cytotoxic effect on human osteosarcoma cells. CONCLUSIONS A tandem application of virtual screening along with the experimental investigation was employed to discover a G-triplex-targeting ligand. Experiments revealed that the selected compound actually acts as a dual G-triplex/G-quadruplex stabilizer, thus stimulating further studies aimed at its optimization. GENERAL SIGNIFICANCE The discovery of molecules able to bind and stabilize G-triplex structures is highly appealing, but their transient state makes challenging their recognition. These findings suggest that the identification of ligands with dual G-triplex/G-quadruplex stabilizing properties may represent a new route for the design of anticancer agents targeting the G-rich DNA structures. This article is part of a Special Issue entitled "G-quadruplex" Guest Editor: Dr. Concetta Giancola and Dr. Daniela Montesarchio.
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Affiliation(s)
- Jussara Amato
- Department of Pharmacy, University of Naples Federico II, via D. Montesano 49, 80131 Naples, Italy
| | - Alessia Pagano
- Department of Pharmacy, University of Naples Federico II, via D. Montesano 49, 80131 Naples, Italy
| | - Sandro Cosconati
- DiSTABiF, Second University of Naples, via Vivaldi 43, 81100 Caserta, Italy
| | - Giorgio Amendola
- DiSTABiF, Second University of Naples, via Vivaldi 43, 81100 Caserta, Italy
| | - Iolanda Fotticchia
- Department of Pharmacy, University of Naples Federico II, via D. Montesano 49, 80131 Naples, Italy
| | - Nunzia Iaccarino
- Department of Pharmacy, University of Naples Federico II, via D. Montesano 49, 80131 Naples, Italy
| | - Jessica Marinello
- Department of Pharmacy and Biotechnology, University of Bologna, 40126 Bologna, Italy
| | - Alessio De Magis
- Department of Pharmacy and Biotechnology, University of Bologna, 40126 Bologna, Italy
| | - Giovanni Capranico
- Department of Pharmacy and Biotechnology, University of Bologna, 40126 Bologna, Italy
| | - Ettore Novellino
- Department of Pharmacy, University of Naples Federico II, via D. Montesano 49, 80131 Naples, Italy
| | - Bruno Pagano
- Department of Pharmacy, University of Naples Federico II, via D. Montesano 49, 80131 Naples, Italy
| | - Antonio Randazzo
- Department of Pharmacy, University of Naples Federico II, via D. Montesano 49, 80131 Naples, Italy.
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Amato J, Morigi R, Pagano B, Pagano A, Ohnmacht S, De Magis A, Tiang YP, Capranico G, Locatelli A, Graziadio A, Leoni A, Rambaldi M, Novellino E, Neidle S, Randazzo A. Toward the Development of Specific G-Quadruplex Binders: Synthesis, Biophysical, and Biological Studies of New Hydrazone Derivatives. J Med Chem 2016; 59:5706-20. [PMID: 27223049 DOI: 10.1021/acs.jmedchem.6b00129] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
G-Quadruplex-binding compounds are currently perceived as possible anticancer therapeutics. Here, starting from a promising lead, a small series of novel hydrazone-based compounds were synthesized and evaluated as G-quadruplex binders. The in vitro G-quadruplex-binding properties of the synthesized compounds were investigated employing both human telomeric and oncogene promoter G-quadruplexes with different folding topologies as targets. The present investigation led to the identification of potent G-quadruplex stabilizers with high selectivity over duplex DNA and preference for one G-quadruplex topology over others. Among them, selected derivatives have been shown to trap G-quadruplex structures in the nucleus of cancer cells. Interestingly, this behavior correlates with efficient cytotoxic activity in human osteosarcoma and colon carcinoma cells.
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Affiliation(s)
- Jussara Amato
- Department of Pharmacy, University of Naples "Federico II" , via D. Montesano 49, 80131 Napoli, Italy
| | - Rita Morigi
- Department of Pharmacy and Biotechnology, University of Bologna , 40126 Bologna, Italy
| | - Bruno Pagano
- Department of Pharmacy, University of Naples "Federico II" , via D. Montesano 49, 80131 Napoli, Italy
| | - Alessia Pagano
- Department of Pharmacy, University of Naples "Federico II" , via D. Montesano 49, 80131 Napoli, Italy
| | - Stephan Ohnmacht
- UCL School of Pharmacy, University College London , London WC1N 1AX, U.K
| | - Alessio De Magis
- Department of Pharmacy and Biotechnology, University of Bologna , 40126 Bologna, Italy
| | - Yee-Peng Tiang
- Department of Pharmacy and Biotechnology, University of Bologna , 40126 Bologna, Italy
| | - Giovanni Capranico
- Department of Pharmacy and Biotechnology, University of Bologna , 40126 Bologna, Italy
| | - Alessandra Locatelli
- Department of Pharmacy and Biotechnology, University of Bologna , 40126 Bologna, Italy
| | - Alessandra Graziadio
- Department of Pharmacy and Biotechnology, University of Bologna , 40126 Bologna, Italy
| | - Alberto Leoni
- Department of Pharmacy and Biotechnology, University of Bologna , 40126 Bologna, Italy
| | - Mirella Rambaldi
- Department of Pharmacy and Biotechnology, University of Bologna , 40126 Bologna, Italy
| | - Ettore Novellino
- Department of Pharmacy, University of Naples "Federico II" , via D. Montesano 49, 80131 Napoli, Italy
| | - Stephen Neidle
- UCL School of Pharmacy, University College London , London WC1N 1AX, U.K
| | - Antonio Randazzo
- Department of Pharmacy, University of Naples "Federico II" , via D. Montesano 49, 80131 Napoli, Italy
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Conte C, Fotticchia I, Tirino P, Moret F, Pagano B, Gref R, Ungaro F, Reddi E, Giancola C, Quaglia F. Cyclodextrin-assisted assembly of PEGylated polyester nanoparticles decorated with folate. Colloids Surf B Biointerfaces 2016; 141:148-157. [DOI: 10.1016/j.colsurfb.2016.01.035] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2015] [Revised: 11/27/2015] [Accepted: 01/19/2016] [Indexed: 01/28/2023]
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Zizza P, Cingolani C, Artuso S, Salvati E, Rizzo A, D'Angelo C, Porru M, Pagano B, Amato J, Randazzo A, Novellino E, Stoppacciaro A, Gilson E, Stassi G, Leonetti C, Biroccio A. Intragenic G-quadruplex structure formed in the human CD133 and its biological and translational relevance. Nucleic Acids Res 2015; 44:1579-90. [PMID: 26511095 PMCID: PMC4770210 DOI: 10.1093/nar/gkv1122] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Accepted: 10/14/2015] [Indexed: 11/14/2022] Open
Abstract
Cancer stem cells (CSCs) have been identified in several solid malignancies and are now emerging as a plausible target for drug discovery. Beside the questionable existence of CSCs specific markers, the expression of CD133 was reported to be responsible for conferring CSC aggressiveness. Here, we identified two G-rich sequences localized within the introns 3 and 7 of the CD133 gene able to form G-quadruplex (G4) structures, bound and stabilized by small molecules. We further showed that treatment of patient-derived colon CSCs with G4-interacting agents triggers alternative splicing that dramatically impairs the expression of CD133. Interestingly, this is strongly associated with a loss of CSC properties, including self-renewing, motility, tumor initiation and metastases dissemination. Notably, the effects of G4 stabilization on some of these CSC properties are uncoupled from DNA damage response and are fully recapitulated by the selective interference of the CD133 expression.In conclusion, we provided the first proof of the existence of G4 structures within the CD133 gene that can be pharmacologically targeted to impair CSC aggressiveness. This discloses a class of potential antitumoral agents capable of targeting the CSC subpopulation within the tumoral bulk.
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Affiliation(s)
- Pasquale Zizza
- Area of Translational Research, Regina Elena National Cancer Institute, via E. Chianesi 53, 00144 Rome, Italy
| | - Chiara Cingolani
- Area of Translational Research, Regina Elena National Cancer Institute, via E. Chianesi 53, 00144 Rome, Italy
| | - Simona Artuso
- Area of Translational Research, Regina Elena National Cancer Institute, via E. Chianesi 53, 00144 Rome, Italy
| | - Erica Salvati
- Area of Translational Research, Regina Elena National Cancer Institute, via E. Chianesi 53, 00144 Rome, Italy
| | - Angela Rizzo
- Area of Translational Research, Regina Elena National Cancer Institute, via E. Chianesi 53, 00144 Rome, Italy
| | - Carmen D'Angelo
- Area of Translational Research, Regina Elena National Cancer Institute, via E. Chianesi 53, 00144 Rome, Italy
| | - Manuela Porru
- Area of Translational Research, Regina Elena National Cancer Institute, via E. Chianesi 53, 00144 Rome, Italy
| | - Bruno Pagano
- Department of Pharmacy, University of Naples 'Federico II', via D. Montesano 49, I-80131 Napoli, Italy
| | - Jussara Amato
- Department of Pharmacy, University of Naples 'Federico II', via D. Montesano 49, I-80131 Napoli, Italy
| | - Antonio Randazzo
- Department of Pharmacy, University of Naples 'Federico II', via D. Montesano 49, I-80131 Napoli, Italy
| | - Ettore Novellino
- Department of Pharmacy, University of Naples 'Federico II', via D. Montesano 49, I-80131 Napoli, Italy
| | - Antonella Stoppacciaro
- Dipartimento di Medicina Clinica e Molecolare, Università 'La Sapienza', piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Eric Gilson
- Institute for Research on Cancer and Aging, Nice (IRCAN), CNRS UMR7284/INSERM U1081, University of Nice, 06107 Nice, France
| | - Giorgio Stassi
- Department of Medical Genetics, Archet 2 Hospital, CHU of Nice, 06202 Nice cedex 3, France
| | - Carlo Leonetti
- Area of Translational Research, Regina Elena National Cancer Institute, via E. Chianesi 53, 00144 Rome, Italy
| | - Annamaria Biroccio
- Area of Translational Research, Regina Elena National Cancer Institute, via E. Chianesi 53, 00144 Rome, Italy
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Pagano B, Amato J, Iaccarino N, Cingolani C, Zizza P, Biroccio A, Novellino E, Randazzo A. Inside Cover: Looking for Efficient G-Quadruplex Ligands: Evidence for Selective Stabilizing Properties and Telomere Damage by Drug-Like Molecules (ChemMedChem 4/2015). ChemMedChem 2015. [DOI: 10.1002/cmdc.201590008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Cerofolini L, Amato J, Borsi V, Pagano B, Randazzo A, Fragai M. Probing the interaction of distamycin A with S100β: the "unexpected" ability of S100β to bind to DNA-binding ligands. J Mol Recognit 2015; 28:376-84. [PMID: 25694263 DOI: 10.1002/jmr.2452] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Revised: 11/20/2014] [Accepted: 11/24/2014] [Indexed: 11/11/2022]
Abstract
DNA-minor-groove-binding ligands are potent antineoplastic molecules. The antibiotic distamycin A is the prototype of one class of these DNA-interfering molecules that have been largely used in vitro. The affinity of distamycin A for DNA is well known, and the structural details of the complexes with some B-DNA and G-quadruplex-forming DNA sequences have been already elucidated. Here, we show that distamycin A binds S100β, a protein involved in the regulation of several cellular processes. The reported affinity of distamycin A for the calcium(II)-loaded S100β reinforces the idea that some biological activities of the DNA-minor-groove-binding ligands arise from the binding to cellular proteins.
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Affiliation(s)
- Linda Cerofolini
- Giotto Biotech, Via Madonna del Piano 6, Sesto Fiorentino, Florence, 50019, Italy
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48
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Pagano B, Amato J, Iaccarino N, Cingolani C, Zizza P, Biroccio A, Novellino E, Randazzo A. Looking for efficient G-quadruplex ligands: evidence for selective stabilizing properties and telomere damage by drug-like molecules. ChemMedChem 2015; 10:640-9. [PMID: 25694275 DOI: 10.1002/cmdc.201402552] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2014] [Indexed: 01/02/2023]
Abstract
There is currently significant interest in the development of G-quadruplex-interactive compounds, given the relationship between the ability to stabilize these non-canonical DNA structures and anticancer activity. In this study, a set of biophysical assays was applied to evaluate the binding of six drug-like ligands to DNA G-quadruplexes with different folding topologies. Interestingly, two of the investigated ligands showed selective G-quadruplex-stabilizing properties and biological activity. These compounds may represent useful leads for the development of more potent and selective ligands.
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Affiliation(s)
- Bruno Pagano
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131, Napoli (Italy)
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49
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Pagano B, Margarucci L, Zizza P, Amato J, Iaccarino N, Cassiano C, Salvati E, Novellino E, Biroccio A, Casapullo A, Randazzo A. Identification of novel interactors of human telomeric G-quadruplex DNA. Chem Commun (Camb) 2015; 51:2964-7. [DOI: 10.1039/c4cc07231f] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Starting from a chemoproteomic-driven approach, novel human telomeric G-quadruplex binding proteins were identified that directly bind the DNA structure in vitro and colocalize with such structures in cells.
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Affiliation(s)
- Bruno Pagano
- Department of Pharmacy
- University of Naples “Federico II”
- 80131 Napoli
- Italy
| | | | - Pasquale Zizza
- Experimental Chemotherapy Laboratory
- Regina Elena National Cancer Institute
- 00158 Rome
- Italy
| | - Jussara Amato
- Department of Pharmacy
- University of Naples “Federico II”
- 80131 Napoli
- Italy
| | - Nunzia Iaccarino
- Department of Pharmacy
- University of Naples “Federico II”
- 80131 Napoli
- Italy
| | - Chiara Cassiano
- Department of Pharmacy
- University of Salerno
- 84084 Fisciano
- Italy
| | - Erica Salvati
- Experimental Chemotherapy Laboratory
- Regina Elena National Cancer Institute
- 00158 Rome
- Italy
| | - Ettore Novellino
- Department of Pharmacy
- University of Naples “Federico II”
- 80131 Napoli
- Italy
| | - Annamaria Biroccio
- Experimental Chemotherapy Laboratory
- Regina Elena National Cancer Institute
- 00158 Rome
- Italy
| | | | - Antonio Randazzo
- Department of Pharmacy
- University of Naples “Federico II”
- 80131 Napoli
- Italy
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50
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Di Maro S, Zizza P, Salvati E, De Luca V, Capasso C, Fotticchia I, Pagano B, Marinelli L, Gilson E, Novellino E, Cosconati S, Biroccio A. Shading the TRF2 recruiting function: a new horizon in drug development. J Am Chem Soc 2014; 136:16708-11. [PMID: 25393214 DOI: 10.1021/ja5080773] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The shelterin protein TRF2 has come to the limelight for its role in telomere maintenance and tumorigenesis. Herein, the application of rational design and synthesis allowed identifying the first TRF2TRFH binder able to elicit a marked DNA damage response in cancer cells. This work paves the way for the unprecedented employment of a chemical tool to finely tune specific mechanisms underlying telomere maintenance.
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