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Visone V, Szabó I, Perugino G, Hudecz F, Bánóczi Z, Valenti A. Topoisomerases inhibition and DNA binding mode of daunomycin-oligoarginine conjugate. J Enzyme Inhib Med Chem 2021; 35:1363-1371. [PMID: 32552137 PMCID: PMC7717705 DOI: 10.1080/14756366.2020.1780226] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 11/25/2022] Open
Abstract
Cancer is a major health issue adsorbing the attention of a biomedical research. To fight this disease, new drugs are developed, specifically tailored to target biological pathways or peculiar components of the tumour cells. Particularly interesting is the use of intercalating agents as drugs capable to bind DNA and inhibit enzymes involved in DNA metabolism. Anthracyclines are the most commonly used anticancer drugs. In particular, daunomycin is used to cancer treatment by exploiting its ability to intercalate DNA and inhibit the activity of DNA topoisomerases implicated in the replication processes. Unfortunately, clinical application of anthracyclines is limited by their side effects. The conjugation with specific carriers could affect the selectivity and reduce side effect by improving stability and/or cellular uptake properties. We here report the biochemical characterisation of a daunomycin oligopeptide conjugate containing six residues of arginine, by the analysis of its fluorescence properties, DNA interaction and topoisomerases inhibitory effects.
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Affiliation(s)
- Valeria Visone
- Institute of Biosciences and BioResources, National Research Council of Italy, Naples, Italy
| | - Ildikó Szabó
- MTA-ELTE Research Group of Peptide Chemistry, Budapest, Hungary
| | - Giuseppe Perugino
- Institute of Biosciences and BioResources, National Research Council of Italy, Naples, Italy
| | - Ferenc Hudecz
- Department of Organic Chemistry, Eötvös Loránd University (ELTE), Budapest, Hungary
| | - Zoltán Bánóczi
- Department of Organic Chemistry, Eötvös Loránd University (ELTE), Budapest, Hungary
| | - Anna Valenti
- Institute of Biosciences and BioResources, National Research Council of Italy, Naples, Italy
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Visone V, Han W, Perugino G, del Monaco G, She Q, Rossi M, Valenti A, Ciaramella M. In vivo and in vitro protein imaging in thermophilic archaea by exploiting a novel protein tag. PLoS One 2017; 12:e0185791. [PMID: 28973046 PMCID: PMC5626487 DOI: 10.1371/journal.pone.0185791] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 09/19/2017] [Indexed: 12/25/2022] Open
Abstract
Protein imaging, allowing a wide variety of biological studies both in vitro and in vivo, is of great importance in modern biology. Protein and peptide tags fused to proteins of interest provide the opportunity to elucidate protein location and functions, detect protein-protein interactions, and measure protein activity and kinetics in living cells. Whereas several tags are suitable for protein imaging in mesophilic organisms, the application of this approach to microorganisms living at high temperature has lagged behind. Archaea provide an excellent and unique model for understanding basic cell biology mechanisms. Here, we present the development of a toolkit for protein imaging in the hyperthermophilic archaeon Sulfolobus islandicus. The system relies on a thermostable protein tag (H5) constructed by engineering the alkylguanine-DNA-alkyl-transferase protein of Sulfolobus solfataricus, which can be covalently labeled using a wide range of small molecules. As a suitable host, we constructed, by CRISPR-based genome-editing technology, a S. islandicus mutant strain deleted for the alkylguanine-DNA-alkyl-transferase gene (Δogt). Introduction of a plasmid-borne H5 gene in this strain led to production of a functional H5 protein, which was successfully labeled with appropriate fluorescent molecules and visualized in cell extracts as well as in Δogt live cells. H5 was fused to reverse gyrase, a peculiar thermophile-specific DNA topoisomerase endowed with positive supercoiling activity, and allowed visualization of the enzyme in living cells. To the best of our knowledge, this is the first report of in vivo imaging of any protein of a thermophilic archaeon, filling an important gap in available tools for cell biology studies in these organisms.
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Affiliation(s)
- Valeria Visone
- Institute of Biosciences and Bioresources, National Research Council of Italy, Napoli, Italy
| | - Wenyuan Han
- Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Giuseppe Perugino
- Institute of Biosciences and Bioresources, National Research Council of Italy, Napoli, Italy
| | - Giovanni del Monaco
- Institute of Biosciences and Bioresources, National Research Council of Italy, Napoli, Italy
| | - Qunxin She
- Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Mosè Rossi
- Institute of Biosciences and Bioresources, National Research Council of Italy, Napoli, Italy
| | - Anna Valenti
- Institute of Biosciences and Bioresources, National Research Council of Italy, Napoli, Italy
- * E-mail: (MC); (AV)
| | - Maria Ciaramella
- Institute of Biosciences and Bioresources, National Research Council of Italy, Napoli, Italy
- * E-mail: (MC); (AV)
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Mezzasalma M, Visone V, Petraccioli A, Odierna G, Capriglione T, Guarino FM. Non-random accumulation of LINE1-like sequences on differentiated snake W chromosomes. J Zool (1987) 2016. [DOI: 10.1111/jzo.12355] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- M. Mezzasalma
- Department of Biology; University of Naples Federico II; Naples Italy
| | - V. Visone
- Department of Biology; University of Naples Federico II; Naples Italy
| | - A. Petraccioli
- Department of Biology; University of Naples Federico II; Naples Italy
| | - G. Odierna
- Department of Biology; University of Naples Federico II; Naples Italy
| | - T. Capriglione
- Department of Biology; University of Naples Federico II; Naples Italy
| | - F. M. Guarino
- Department of Biology; University of Naples Federico II; Naples Italy
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Vvedenskaya IO, Zhang Y, Goldman SR, Valenti A, Visone V, Taylor DM, Ebright RH, Nickels BE. Massively Systematic Transcript End Readout, "MASTER": Transcription Start Site Selection, Transcriptional Slippage, and Transcript Yields. Mol Cell 2015; 60:953-65. [PMID: 26626484 DOI: 10.1016/j.molcel.2015.10.029] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Revised: 08/14/2015] [Accepted: 10/14/2015] [Indexed: 11/24/2022]
Abstract
We report the development of a next-generation sequencing-based technology that entails construction of a DNA library comprising up to at least 4(7) (∼ 16,000) barcoded sequences, production of RNA transcripts, and analysis of transcript ends and transcript yields (massively systematic transcript end readout, "MASTER"). Using MASTER, we define full inventories of transcription start sites ("TSSomes") of Escherichia coli RNA polymerase for initiation at a consensus core promoter in vitro and in vivo; we define the TSS-region DNA sequence determinants for TSS selection, reiterative initiation ("slippage synthesis"), and transcript yield; and we define effects of DNA topology and NTP concentration. The results reveal that slippage synthesis occurs from the majority of TSS-region DNA sequences and that TSS-region DNA sequences have profound, up to 100-fold, effects on transcript yield. The results further reveal that TSSomes depend on DNA topology, consistent with the proposal that TSS selection involves transcription-bubble expansion ("scrunching") and transcription-bubble contraction ("anti-scrunching").
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Affiliation(s)
- Irina O Vvedenskaya
- Department of Genetics, Rutgers University, Piscataway, NJ 08854, USA; Waksman Institute, Rutgers University, Piscataway, NJ 08854, USA
| | - Yuanchao Zhang
- Department of Genetics, Rutgers University, Piscataway, NJ 08854, USA; Department of Biomedical and Health Informatics, The Children's Hospital of Philadelphia, Philadelphia, PA 19041, USA
| | - Seth R Goldman
- Department of Genetics, Rutgers University, Piscataway, NJ 08854, USA; Waksman Institute, Rutgers University, Piscataway, NJ 08854, USA
| | - Anna Valenti
- Institute of Biosciences and Bioresources, National Research Council of Italy, Via P. Castellino 111, Naples 80131, Italy
| | - Valeria Visone
- Institute of Biosciences and Bioresources, National Research Council of Italy, Via P. Castellino 111, Naples 80131, Italy
| | - Deanne M Taylor
- Department of Genetics, Rutgers University, Piscataway, NJ 08854, USA; Department of Biomedical and Health Informatics, The Children's Hospital of Philadelphia, Philadelphia, PA 19041, USA; Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, 19104, USA; Department of Obstetrics, Gynecology and Reproductive Sciences, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ 08901, USA
| | - Richard H Ebright
- Waksman Institute, Rutgers University, Piscataway, NJ 08854, USA; Department of Chemistry and Chemical Biology, Rutgers University, Piscataway, NJ 08854, USA
| | - Bryce E Nickels
- Department of Genetics, Rutgers University, Piscataway, NJ 08854, USA; Waksman Institute, Rutgers University, Piscataway, NJ 08854, USA.
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