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Lucignano R, Sanità G, Esposito E, Russo Krauss I, D'Ursi AM, Buonocore M, Picone D. Human ferritin nanocarriers for drug-delivery: A molecular view of the disassembly process. Int J Biol Macromol 2024; 277:134373. [PMID: 39094874 DOI: 10.1016/j.ijbiomac.2024.134373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2024] [Revised: 07/20/2024] [Accepted: 07/30/2024] [Indexed: 08/04/2024]
Abstract
Ferritins are natural proteins which spontaneously self-assemble forming hollow nanocages physiologically deputed to iron storage and homeostasis. Thanks to their high stability and easy production in vitro, ferritins represent an intriguing system for nanobiotechnology. Here we investigated the mechanism of disassembly and reassembly of a human recombinant ferritin constituted by the heavy chain (hHFt) exploiting a new procedure which involves the use of minimal amounts of sodium dodecyl sulfate (SDS) and assessed its effectiveness in comparison with two commonly used protocols based on pH shift at highly acidic and alkaline values. The interest in this ferritin as drug nanocarrier is related to the strong affinity of the human H-chain for the transferrin receptor TfR-1, overexpressed in several tumoral cell lines. Using different techniques, like NMR, TEM and DLS, we demonstrated that the small concentrations of SDS can eliminate the nanocage architecture without detaching the monomers from each other, which instead remain strongly associated. Following this procedure, we encapsulated into the nanocage a small ruthenium complex with a remarkable improvement with respect to previous protocols in terms of yield, structural integrity of the recovered protein and encapsulation efficiency. In our opinion, the extensive network of interchain interactions preserved during the SDS-based disassembly procedure represents the key for a complete and correct hHFt reassembly.
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Affiliation(s)
- Rosanna Lucignano
- Department of Chemical Sciences, University of Naples "Federico II", University of Napoli Federico II Complesso Universitario Monte Sant'Angelo, Via Cintia, 80126 Naples, Italy
| | - Gennaro Sanità
- Institute of Applied Sciences and Intelligent Systems (ISASI), Naples Cryo Electron Microscopy Laboratory - EYE LAB, National Research Council (CNR), Via Pietro Castellino 111, 80131 Naples, Italy
| | - Emanuela Esposito
- Institute of Applied Sciences and Intelligent Systems (ISASI), Naples Cryo Electron Microscopy Laboratory - EYE LAB, National Research Council (CNR), Via Pietro Castellino 111, 80131 Naples, Italy
| | - Irene Russo Krauss
- Department of Chemical Sciences, University of Naples "Federico II", University of Napoli Federico II Complesso Universitario Monte Sant'Angelo, Via Cintia, 80126 Naples, Italy; CSGI (Consorzio per lo Sviluppo dei Sistemi a Grande Interfase), I-50019 Florence, Italy
| | - Anna Maria D'Ursi
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Salerno, Italy
| | - Michela Buonocore
- Department of Chemical Sciences, University of Naples "Federico II", University of Napoli Federico II Complesso Universitario Monte Sant'Angelo, Via Cintia, 80126 Naples, Italy.
| | - Delia Picone
- Department of Chemical Sciences, University of Naples "Federico II", University of Napoli Federico II Complesso Universitario Monte Sant'Angelo, Via Cintia, 80126 Naples, Italy.
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2
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Ferraro G, Lyčková T, Massai L, Štarha P, Messori L, Merlino A. Picoplatin binding to proteins: X-ray structures and mass spectrometry data on the adducts with lysozyme and ribonuclease A. Dalton Trans 2024; 53:8535-8540. [PMID: 38727007 DOI: 10.1039/d4dt00773e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
The reactivity of the anticancer drug picoplatin (cis-amminedichlorido(2-methylpyridine)platinum(II) complex) with the model proteins hen egg white lysozyme (HEWL) and bovine pancreatic ribonuclease (RNase A) was investigated by electrospray ionisation mass spectrometry (ESI MS) and X-ray crystallography. The data were compared with those previously obtained for the adducts of these proteins with cisplatin, carboplatin and oxaliplatin under the same experimental conditions. ESI-MS data show binding of Pt to both proteins, with fragments retaining the 2-methylpyridine ligand and, possibly, a chloride ion. X-ray crystallography identifies different binding sites on the two proteins, highlighting a different behaviour of picoplatin in the absence or presence of dimethyl sulfoxide (DMSO). Metal-containing fragments bind to HEWL close to the side chains of His15, Asp18, Asp119 and both Lys1 and Glu7, whereas they bind to RNase A on the side chain of His12, Met29, His48, Asp53, Met79, His105 and His119. The data suggest that the presence of DMSO favours the loss of 2-methylpyridine and alters the ability of the Pt compound to bind to the two proteins. With both proteins, picoplatin appears to behave similarly to cisplatin and carboplatin when dissolved in DMSO, whereas it behaves more like oxaliplatin in the absence of the coordinating solvent. This study provides important insights into the pharmacological profile of picoplatin and supports the conclusion that coordinating solvents should not be used to evaluate the biological activities of Pt-based drugs.
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Affiliation(s)
- Giarita Ferraro
- Department of Chemical Sciences, University of Naples Federico II, Complesso universitario di Monte Sant'Angelo, via Cinthia, 21, 80126, Naples, Italy.
| | - Tereza Lyčková
- Department of Inorganic Chemistry, Faculty of Science, Palacký University Olomouc, 17. listopadu 12, 771 46 Olomouc, Czech Republic
| | - Lara Massai
- Department of Chemistry "Ugo Schiff", University of Florence, via della Lastruccia, 3-13, 50019, Sesto Fiorentino, Florence, Italy
| | - Pavel Štarha
- Department of Inorganic Chemistry, Faculty of Science, Palacký University Olomouc, 17. listopadu 12, 771 46 Olomouc, Czech Republic
| | - Luigi Messori
- Department of Chemistry "Ugo Schiff", University of Florence, via della Lastruccia, 3-13, 50019, Sesto Fiorentino, Florence, Italy
| | - Antonello Merlino
- Department of Chemical Sciences, University of Naples Federico II, Complesso universitario di Monte Sant'Angelo, via Cinthia, 21, 80126, Naples, Italy.
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3
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Raut KK, Pandey S, Kharel G, Pascal SM. Evidence of direct interaction between cisplatin and the caspase-cleaved prostate apoptosis response-4 tumor suppressor. Protein Sci 2024; 33:e4867. [PMID: 38093605 PMCID: PMC10868438 DOI: 10.1002/pro.4867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 11/09/2023] [Accepted: 12/11/2023] [Indexed: 02/16/2024]
Abstract
Prostate apoptosis response-4 (Par-4) tumor suppressor protein has gained attention as a potential therapeutic target owing to its unique ability to selectively induce apoptosis in cancer cells, sensitize them to chemotherapy and radiotherapy, and mitigate drug resistance. It has recently been reported that Par-4 interacts synergistically with cisplatin, a widely used anticancer drug. However, the mechanistic details underlying this relationship remain elusive. In this investigation, we employed an array of biophysical techniques, including circular dichroism spectroscopy, dynamic light scattering, and UV-vis absorption spectroscopy, to characterize the interaction between the active caspase-cleaved Par-4 (cl-Par-4) fragment and cisplatin. Additionally, elemental analysis was conducted to quantitatively assess the binding of cisplatin to the protein, utilizing inductively coupled plasma-optical emission spectroscopy and atomic absorption spectroscopy. Our findings provide evidence of direct interaction between cl-Par-4 and cisplatin, and reveal a binding stoichiometry of 1:1. This result provides insights that could be useful in enhancing the efficacy of cisplatin-based and tumor suppressor-based cancer therapies.
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Affiliation(s)
- Krishna K. Raut
- Department of Chemistry and BiochemistryOld Dominion UniversityNorfolkVirginiaUSA
| | - Samjhana Pandey
- Biomedical Sciences ProgramOld Dominion UniversityNorfolkVirginiaUSA
| | - Gyanendra Kharel
- Department of Chemistry and BiochemistryOld Dominion UniversityNorfolkVirginiaUSA
| | - Steven M. Pascal
- Department of Chemistry and BiochemistryOld Dominion UniversityNorfolkVirginiaUSA
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4
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Zhou J, Chen X, Wei Y, Lu R, Wei Z, Huang K, Luo H, Zhang J, Zheng C. Portable and Rapid Fluorescence Turn-On Detection of Total Pepsin in Saliva Based on Strong Electrostatic Interactions. Anal Chem 2023; 95:18303-18308. [PMID: 38019658 DOI: 10.1021/acs.analchem.3c04723] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Abstract
Salivary pepsin has been proposed as a promising diagnostic marker for gastroesophageal reflux disease (GERD). However, the activity of human pepsin is strongly influenced by pH, and the acidic condition (pH ∼ 2) is optimal, which is a contradiction for the pepsin detection kit based on its catalytic activity. Thus, its accurate quantification in saliva (neutral pH) by readily rapid tools with simplicity and low cost is still challenging. Herein, a convenient fluorescence assay has been developed for the rapid detection of pepsin at neutral pH based on its electrostatic interaction with SYBR Green (SG) rather than the bioactivity. At neutral pH, the positively charged SG fluorophore can be effectively adsorbed by the negatively charged pepsin due to the low isoelectric point (pI) and large molecular size of pepsin. Thus, the molecular rotation of SG is limited, and its fluorescence intensity is significantly increased. The strategy was further confirmed to have the same fluorescence response as that of normally active and inactivated pepsin. Due to the unique pI of pepsin, the fluorescence strategy is highly selective for pepsin compared to other proteins. On the basis of this strategy, a smartphone-based fluorescence capture device integrated with a programmed Python program was fabricated for both color recognition and the accurate detection of pepsin within 3 min. Under the optimal conditions, this turn-on sensor allowed for the on-site analysis of pepsin with a detection limit of 0.2 μg/mL. Moreover, this strategy was successfully used to assess salivary pepsin to aid in the noninvasive diagnosis of GERD.
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Affiliation(s)
- Jinyan Zhou
- College of Chemistry and Material Science, Sichuan Normal University, Chengdu, Sichuan 610068, China
- Key Laboratory of Green Chemistry & Technology of MOE, College of Chemistry, Sichuan University, Chengdu, Sichuan 610065, China
| | - Xueshan Chen
- Key Laboratory of Green Chemistry & Technology of MOE, College of Chemistry, Sichuan University, Chengdu, Sichuan 610065, China
| | - Yingnan Wei
- Key Laboratory of Green Chemistry & Technology of MOE, College of Chemistry, Sichuan University, Chengdu, Sichuan 610065, China
| | - Ruixuan Lu
- Key Laboratory of Green Chemistry & Technology of MOE, College of Chemistry, Sichuan University, Chengdu, Sichuan 610065, China
| | - Zeliang Wei
- Core Facilities of West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Ke Huang
- College of Chemistry and Material Science, Sichuan Normal University, Chengdu, Sichuan 610068, China
| | - Hong Luo
- College of Chemistry and Material Science, Sichuan Normal University, Chengdu, Sichuan 610068, China
| | - Jinyi Zhang
- Key Laboratory of Green Chemistry & Technology of MOE, College of Chemistry, Sichuan University, Chengdu, Sichuan 610065, China
| | - Chengbin Zheng
- Key Laboratory of Green Chemistry & Technology of MOE, College of Chemistry, Sichuan University, Chengdu, Sichuan 610065, China
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5
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Impact of Hydrophobic Chains in Five-Coordinate Glucoconjugate Pt(II) Anticancer Agents. Int J Mol Sci 2023; 24:ijms24032369. [PMID: 36768690 PMCID: PMC9916762 DOI: 10.3390/ijms24032369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 01/17/2023] [Accepted: 01/20/2023] [Indexed: 01/27/2023] Open
Abstract
This study describes new platinum(II) cationic five-coordinate complexes (1-R,R') of the formula [PtR(NHC)(dmphen)(ethene)]CF3SO3 (dmphen = 2,9-dimethyl-1,10-phenanthroline), containing in their axial positions an alkyl group R (methyl or octyl) and an imidazole-based NHC-carbene ligand with a substituent R' of variable length (methyl or octyl) on one nitrogen atom. The Pt-carbene bond is stable both in DMSO and in aqueous solvents. In DMSO, a gradual substitution of dmphen and ethene is observed, with the formation of a square planar solvated species. Octanol/water partitioning studies have revealed the order of hydrophobicity of the complexes (1-Oct,Me > 1-Oct,Oct > 1-Me,Oct > 1-Me,Me). Their biological activity was investigated against two pairs of cancer and non-cancer cell lines. The tested drugs were internalized in cancer cells and able to activate the apoptotic pathway. The reactivity of 1-Me,Me with DNA and protein model systems was also studied using UV-vis absorption spectroscopy, fluorescence, and X-ray crystallography. The compound binds DNA and interacts in various ways with the model protein lysozyme. Remarkably, structural data revealed that the complex can bind lysozyme via non-covalent interactions, retaining its five-coordinate geometry.
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6
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Marzo T, Ferraro G, Cucci LM, Pratesi A, Hansson Ö, Satriano C, Merlino A, La Mendola D. Oxaliplatin inhibits angiogenin proliferative and cell migration effects in prostate cancer cells. J Inorg Biochem 2021; 226:111657. [PMID: 34784565 DOI: 10.1016/j.jinorgbio.2021.111657] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 10/08/2021] [Accepted: 10/31/2021] [Indexed: 01/11/2023]
Abstract
Angiogenin (Ang) is a potent angiogenic protein that is overexpressed in many types of cancer at concentration values correlated to the tumor aggressiveness. Here, by means of an integrated multi-technique approach based on crystallographic, spectrometric and spectroscopic analyses, we demonstrate that the anti-cancer drug oxaliplatin efficiently binds angiogenin. Microscopy cellular studies, carried out on the prostate cancer cell (PC-3) line , show that oxaliplatin inhibits the angiogenin prompting effect on cell proliferation and migration, which are typical features of angiogenesis process. Overall, our findings point to angiogenin as a possible target of oxaliplatin, thus suggesting a potential novel mechanism for the antineoplastic activity of this platinum drug and opening the avenue to novel approaches in the combined anti-cancer anti-angiogenic therapy.
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Affiliation(s)
- Tiziano Marzo
- Department of Pharmacy, University of Pisa, Via Bonanno Pisano 6, 56126 Pisa, Italy
| | - Giarita Ferraro
- Department of Chemistry 'Ugo Schiff', University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, FI, Italy
| | - Lorena Maria Cucci
- Department of Chemical Sciences, University of Catania, Viale A. Doria 6, 95125 Catania, Italy
| | - Alessandro Pratesi
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, 56124 Pisa, Italy
| | - Örjan Hansson
- Department of Chemistry and Chemical Biology, University of Gothenburg, Medicinaregatan 9C, PO Box 462, SE-40530 Göteborg, Sweden
| | - Cristina Satriano
- Department of Chemical Sciences, University of Catania, Viale A. Doria 6, 95125 Catania, Italy.
| | - Antonello Merlino
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 21, I-80126 Napoli, Italy.
| | - Diego La Mendola
- Department of Pharmacy, University of Pisa, Via Bonanno Pisano 6, 56126 Pisa, Italy.
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7
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Ferraro G, Loreto D, Merlino A. Interaction of Platinum-based Drugs with Proteins: An Overview of Representative Crystallographic Studies. Curr Top Med Chem 2021; 21:6-27. [PMID: 32579504 DOI: 10.2174/1568026620666200624162213] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 05/11/2020] [Accepted: 05/13/2020] [Indexed: 12/27/2022]
Abstract
Pt-based drugs are widely used in clinics for the treatment of cancer. The mechanism of action of these molecules relies on their interaction with DNA. However, the recognition of these metal compounds by proteins plays an important role in defining pharmacokinetics, side effects and their overall pharmacological profiles. Single crystal X-ray diffraction studies provided important information on the molecular mechanisms at the basis of this process. Here, the molecular structures of representative adducts obtained upon reaction with proteins of selected Pt-based drugs, including cisplatin, carboplatin and oxaliplatin, are briefly described and comparatively examined. Data indicate that metal ligands play a significant role in driving the reaction of Pt compounds with proteins; non-covalent interactions that occur in the early steps of Pt compound/protein recognition process play a crucial role in defining the structure of the final Pt-protein adduct. In the metallated protein structures, Pt centers coordinate few protein side chains, such as His, Met, Cys, Asp, Glu and Lys residues upon releasing labile ligands.
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Affiliation(s)
- Giarita Ferraro
- Department of Chemistry Ugo Schiff, University of Florence, Sesto Fiorentino, Firenze, Italy
| | - Domenico Loreto
- Department of Chemical Sciences, University of Naples Federico II, Napoli, Italy
| | - Antonello Merlino
- Department of Chemical Sciences, University of Naples Federico II, Napoli, Italy
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8
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Adams M, Sullivan MP, Tong KKH, Goldstone DC, Hanif M, Jamieson SMF, Hartinger CG. Mustards-Derived Terpyridine-Platinum Complexes as Anticancer Agents: DNA Alkylation vs Coordination. Inorg Chem 2021; 60:2414-2424. [PMID: 33497565 DOI: 10.1021/acs.inorgchem.0c03317] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The development of bifunctional platinum complexes with the ability to interact with DNA via different binding modes is of interest in anticancer metallodrug research. Therefore, we report platinum(II) terpyridine complexes to target DNA by coordination and/or through a tethered alkylating moiety. The platinum complexes were evaluated for their in vitro antiproliferative properties against the human cancer cell lines HCT116 (colorectal), SW480 (colon), NCI-H460 (non-small cell lung), and SiHa (cervix) and generally exhibited potent antiproliferative activity although lower than their respective terpyridine ligands. 1H NMR spectroscopy and/or ESI-MS studies on the aqueous stability and reactivity with various small biomolecules, acting as protein and DNA model compounds, were used to establish potential modes of action for these complexes. These investigations indicated rapid binding of complex PtL3 to the biomolecules through coordination to the Pt center, while PtL4 in addition alkylated 9-ethylguanine. PtL3 was investigated for its reactivity to the model protein hen egg white lysozyme (HEWL) by protein crystallography which allowed identification of the Nδ1 atom of His15 as the binding site.
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Affiliation(s)
- Muneebah Adams
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Matthew P Sullivan
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.,School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Kelvin K H Tong
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.,Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - David C Goldstone
- School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Muhammad Hanif
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Stephen M F Jamieson
- Auckland Cancer Society Research Centre, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Christian G Hartinger
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.,Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
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9
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Ferraro G, Cirri D, Marzo T, Pratesi A, Messori L, Merlino A. The first step of arsenoplatin-1 aggregation in solution unveiled by solving the crystal structure of its protein adduct. Dalton Trans 2020; 50:68-71. [PMID: 33320144 DOI: 10.1039/d0dt04068a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Arsenoplatin-1 (AP-1) is an innovative dual-action anticancer agent that contains a platinum(ii) center coordinated to an arsenous acid moiety. We found that AP-1 spontaneously aggregates in aqueous solutions generating oligomeric species of increasing length. Afterward, we succeeded in solving the crystal structure of the adduct formed between the model protein lysozyme and an early AP-1 oligomer that turned out to be a trimer. Remarkably, this crystal structure traps an early stage of AP-1 aggregation offering detailed insight into the molecular process of the oligomer's growth.
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Affiliation(s)
- Giarita Ferraro
- Department of Chemistry, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, FI, Italy.
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10
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Daubit IM, Sullivan MP, John M, Goldstone DC, Hartinger CG, Metzler-Nolte N. A Combined Spectroscopic and Protein Crystallography Study Reveals Protein Interactions of Rh I(NHC) Complexes at the Molecular Level. Inorg Chem 2020; 59:17191-17199. [PMID: 33180473 DOI: 10.1021/acs.inorgchem.0c02438] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
While most Rh-N-heterocyclic carbene (NHC) complexes currently investigated in anticancer research contain a Rh(III) metal center, an increasing amount of research is focusing on the cytotoxic activity and mode of action of square-planar [RhCl(COD)(NHC)] (where COD = 1,5-cyclooctadiene) which contains a Rh(I) center. The enzyme thioredoxin reductase (TrxR) and the protein albumin have been proposed as potential targets, but the molecular processes taking place upon protein interaction remain elusive. Herein, we report the preparation of peptide-conjugated and its nonconjugated parent [RhCl(COD)(NHC)] complexes, an in-depth investigation of both their stability in solution, and a crystallographic study of protein interaction. The organorhodium compounds showed a rapid loss of the COD ligand and slow loss of the NHC ligand in aqueous solution. These ligand exchange reactions were reflected in studies on the interaction with hen egg white lysozyme (HEWL) as a model protein in single-crystal X-ray crystallographic investigations. Upon treatment of HEWL with an amino acid functionalized [RhCl(COD)(NHC)] complex, two distinct rhodium adducts were found initially after 7 d of incubation at His15 and after 4 weeks also at Lys33. In both cases, the COD and chlorido ligands had been substituted with aqua and/or hydroxido ligands. While the histidine (His) adduct also indicated a loss of the NHC ligand, the lysine (Lys) adduct retained the NHC core derived from the amino acid l-histidine. In either case, an octahedral coordination environment of the metal center indicates oxidation to Rh(III). This investigation gives the first insight on the interaction of Rh(I)(NHC) complexes and proteins at the molecular level.
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Affiliation(s)
- Isabelle M Daubit
- Inorganic Chemistry I - Bioinorganic Chemistry, Faculty of Chemistry and Biochemistry, Ruhr-Universität Bochum, Universitätsstr. 150, 44801 Bochum, Germany
| | - Matthew P Sullivan
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.,School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Milena John
- Inorganic Chemistry I - Bioinorganic Chemistry, Faculty of Chemistry and Biochemistry, Ruhr-Universität Bochum, Universitätsstr. 150, 44801 Bochum, Germany
| | - David C Goldstone
- School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Christian G Hartinger
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Nils Metzler-Nolte
- Inorganic Chemistry I - Bioinorganic Chemistry, Faculty of Chemistry and Biochemistry, Ruhr-Universität Bochum, Universitätsstr. 150, 44801 Bochum, Germany
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11
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12
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Balasco N, Ferraro G, Loreto D, Iacobucci I, Monti M, Merlino A. Cisplatin binding to β-lactoglobulin: a structural study. Dalton Trans 2020; 49:12450-12457. [PMID: 32852026 DOI: 10.1039/d0dt02582h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The first structural study on the interaction of β-lactoglobulin with the anticancer compound cisplatin is here reported by combining spectroscopic, crystallographic and mass spectrometry techniques.
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Affiliation(s)
- Nicole Balasco
- Institute of Biostructures and Bioimaging
- CNR
- 80134 Napoli
- Italy
| | - Giarita Ferraro
- Department of Chemistry “Ugo Schiff”
- University of Florence
- Sesto Fiorentino
- Italy
| | - Domenico Loreto
- Department of Chemical Sciences
- University of Naples Federico II
- Complesso Universitario di Monte Sant'Angelo
- Napoli
- Italy
| | - Ilaria Iacobucci
- Department of Chemical Sciences
- University of Naples Federico II
- Complesso Universitario di Monte Sant'Angelo
- Napoli
- Italy
| | - Maria Monti
- Department of Chemical Sciences
- University of Naples Federico II
- Complesso Universitario di Monte Sant'Angelo
- Napoli
- Italy
| | - Antonello Merlino
- Department of Chemical Sciences
- University of Naples Federico II
- Complesso Universitario di Monte Sant'Angelo
- Napoli
- Italy
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13
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Cui L, Wang S, Zhang J, Wang M, Gao Y, Bai L, Zhang H, Ma G, Ba X. Effect of curcumin derivatives on hen egg white lysozyme amyloid fibrillation and their interaction study by spectroscopic methods. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 223:117365. [PMID: 31323497 DOI: 10.1016/j.saa.2019.117365] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 06/15/2019] [Accepted: 07/07/2019] [Indexed: 06/10/2023]
Abstract
Two novel Boc-L-isoleucine-functionalized curcumin derivatives have been synthesized and characterized, which exhibited enhanced solubility in water compared with the natural curcumin. The solubility could reach 2.12mg/mL for the monosubstituted compound and 3.05mg/mL for the disubstituted compound, respectively. Their anti-amyloidogenic capacity on the model protein, hen egg white lysozyme (HEWL), was examined in aqueous solution. ThT fluorescence assay showed that the operation concentration was only 0.5mM when the inhibition ratio was above 70%. Meanwhile, the inhibitory capacity of monosubstituted curcumin derivative on the formation of HEWL amyloid fibrils was found to be superior to that of disubstituted derivative, suggesting that the phenolic hydroxyl group might contribute to the anti-amyloidogenic activity. Interaction study showed that both curcumin derivatives could bind with HEWL near tryptophan residues and form new ground-state complex before HEWL self-assemblies into amyloid fibrils and thus inhibits the formation of amyloid fibrils. Both of the two cucumin derivatives have displayed low cytotoxicity with HeLa cell.
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Affiliation(s)
- Liangliang Cui
- College of Chemistry and Environmental Science, Hebei University, Baoding 071002, PR China
| | - Sujuan Wang
- College of Chemistry and Environmental Science, Hebei University, Baoding 071002, PR China.
| | - Jian Zhang
- College of Chemistry and Environmental Science, Hebei University, Baoding 071002, PR China
| | - Mengna Wang
- College of Chemistry and Environmental Science, Hebei University, Baoding 071002, PR China
| | - Yan Gao
- Affiliated Hospital of Hebei University, Baoding 071000, PR China
| | - Libin Bai
- College of Chemistry and Environmental Science, Hebei University, Baoding 071002, PR China
| | - Hailei Zhang
- College of Chemistry and Environmental Science, Hebei University, Baoding 071002, PR China
| | - Gang Ma
- College of Chemistry and Environmental Science, Hebei University, Baoding 071002, PR China; Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Hebei University, Baoding 071002, PR China.
| | - Xinwu Ba
- College of Chemistry and Environmental Science, Hebei University, Baoding 071002, PR China; Affiliated Hospital of Hebei University, Baoding 071000, PR China.
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14
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Annunziata A, Cucciolito ME, Esposito R, Ferraro G, Monti DM, Merlino A, Ruffo F. Five‐Coordinate Platinum(II) Compounds as Potential Anticancer Agents. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900771] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Alfonso Annunziata
- Dipartimento di Scienze Chimiche Complesso Universitario di Monte S. Angelo Università degli Studi di Napoli Federico II via Cintia 21 – 80126 Napoli Italy
| | - Maria Elena Cucciolito
- Dipartimento di Scienze Chimiche Complesso Universitario di Monte S. Angelo Università degli Studi di Napoli Federico II via Cintia 21 – 80126 Napoli Italy
- Complesso Universitario di Monte S. Angelo CIRCC Via Celso Ulpiani 27 – 70126 Bari Italy
| | - Roberto Esposito
- Dipartimento di Scienze Chimiche Complesso Universitario di Monte S. Angelo Università degli Studi di Napoli Federico II via Cintia 21 – 80126 Napoli Italy
- Complesso Universitario di Monte S. Angelo CIRCC Via Celso Ulpiani 27 – 70126 Bari Italy
| | - Giarita Ferraro
- Dipartimento di Chimica “Ugo Schiff” Complesso Universitario di Monte S. Angelo Università degli Studi di Firenze Via della Lastruccia, 3‐13 – 50019 Sesto Fiorentino (FI) Italy
| | - Daria Maria Monti
- Dipartimento di Scienze Chimiche Complesso Universitario di Monte S. Angelo Università degli Studi di Napoli Federico II via Cintia 21 – 80126 Napoli Italy
| | - Antonello Merlino
- Dipartimento di Scienze Chimiche Complesso Universitario di Monte S. Angelo Università degli Studi di Napoli Federico II via Cintia 21 – 80126 Napoli Italy
| | - Francesco Ruffo
- Dipartimento di Scienze Chimiche Complesso Universitario di Monte S. Angelo Università degli Studi di Napoli Federico II via Cintia 21 – 80126 Napoli Italy
- Complesso Universitario di Monte S. Angelo CIRCC Via Celso Ulpiani 27 – 70126 Bari Italy
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15
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Monti DM, Ferraro G, Merlino A. Ferritin-based anticancer metallodrug delivery: Crystallographic, analytical and cytotoxicity studies. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2019; 20:101997. [PMID: 31028889 DOI: 10.1016/j.nano.2019.04.001] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 02/28/2019] [Accepted: 04/03/2019] [Indexed: 12/27/2022]
Abstract
The encapsulation of anticancer metal-based drugs within a protein nanocage represents a valuable strategy to improve the efficacy and selectivity of these compounds towards cancer cells. The preparation, characterization of the in vitro cytotoxicity and X-ray structures of several ferritin-metallodrug nanocomposites (mainly containing platinum-, ruthenium- and gold-based anticancer agents) are here reviewed. The molecular mechanisms of action of these Ft-metallodrug adducts are discussed and future directions in the field are outlined.
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Affiliation(s)
- Dara Maria Monti
- Department of Chemical Sciences, University of Naples Federico II, Napoli, Italy
| | - Giarita Ferraro
- Department of Chemical Sciences, University of Naples Federico II, Napoli, Italy
| | - Antonello Merlino
- Department of Chemical Sciences, University of Naples Federico II, Napoli, Italy.
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16
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Florio D, Malfitano AM, Di Somma S, Mügge C, Weigand W, Ferraro G, Iacobucci I, Monti M, Morelli G, Merlino A, Marasco D. Platinum(II) O, S Complexes Inhibit the Aggregation of Amyloid Model Systems. Int J Mol Sci 2019; 20:ijms20040829. [PMID: 30769904 PMCID: PMC6413125 DOI: 10.3390/ijms20040829] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 02/08/2019] [Accepted: 02/13/2019] [Indexed: 02/07/2023] Open
Abstract
Platinum(II) complexes with different cinnamic acid derivatives as ligands were investigated for their ability to inhibit the aggregation process of amyloid systems derived from Aβ, Yeast Prion Protein Sup35p and the C-terminal domain of nucleophosmin 1. Thioflavin T binding assays and circular dichroism data indicate that these compounds strongly inhibit the aggregation of investigated peptides exhibiting IC50 values in the micromolar range. MS analysis confirms the formation of adducts between peptides and Pt(II) complexes that are also able to reduce amyloid cytotoxicity in human SH-SY5Y neuroblastoma cells. Overall data suggests that bidentate ligands based on β-hydroxy dithiocinnamic esters can be used to develop platinum or platinoid compounds with anti-amyloid aggregation properties.
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Affiliation(s)
- Daniele Florio
- Department of Pharmacy, University of Naples Federico II, Napoli 80134, Italy.
| | - Anna Maria Malfitano
- Department of Translational Medical Science, University of Naples Federico II, Napoli 80131, Italy.
| | - Sarah Di Somma
- Department of Translational Medical Science, University of Naples Federico II, Napoli 80131, Italy.
| | - Carolin Mügge
- Institute for Inorganic and Analytical Chemistry, University of Jena, Jena 07743, Germany.
- Department of Biology, Ruhr-University Bochum, Bochum 44801, Germany.
| | - Wolfgang Weigand
- Institute for Inorganic and Analytical Chemistry, University of Jena, Jena 07743, Germany.
| | - Giarita Ferraro
- Department of Chemical Sciences, University of Naples Federico II, Napoli 80126, Italy.
| | - Ilaria Iacobucci
- Department of Chemical Sciences, University of Naples Federico II, Napoli 80126, Italy.
- CEINGE Biotecnologie Avanzate s.c.a r.l., University of Naples Federico II, Napoli 80145, Italy.
| | - Maria Monti
- Department of Chemical Sciences, University of Naples Federico II, Napoli 80126, Italy.
- CEINGE Biotecnologie Avanzate s.c.a r.l., University of Naples Federico II, Napoli 80145, Italy.
| | - Giancarlo Morelli
- Department of Pharmacy, University of Naples Federico II, Napoli 80134, Italy.
| | - Antonello Merlino
- Department of Chemical Sciences, University of Naples Federico II, Napoli 80126, Italy.
| | - Daniela Marasco
- Department of Pharmacy, University of Naples Federico II, Napoli 80134, Italy.
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17
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Petruk G, Monti DM, Ferraro G, Pica A, D'Elia L, Pane F, Amoresano A, Furrer J, Kowalski K, Merlino A. Encapsulation of the Dinuclear Trithiolato-Bridged Arene Ruthenium Complex Diruthenium-1 in an Apoferritin Nanocage: Structure and Cytotoxicity. ChemMedChem 2019; 14:594-602. [PMID: 30674089 DOI: 10.1002/cmdc.201800805] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 01/21/2019] [Indexed: 12/14/2022]
Abstract
The effects of encapsulating the cytotoxic dinuclear trithiolato-bridged arene ruthenium complex [(η6 -p-MeC6 H4 iPr)2 Ru2 (μ2 -S-p-C6 H4 tBu)3 ]Cl (DiRu-1) within the apoferritin (AFt) nanocage were investigated. The DiRu-1-AFt nanocarrier was characterized by UV/Vis spectroscopy, ICP-MS, CD and X-ray crystallography. In contrast to previously reported Au- and Pt-based drug-loaded AFt carriers, we found no evidence of direct interactions between DiRu-1 and AFt. DiRu-1-AFt is cytotoxic toward immortalized murine BALB/c-3T3 fibroblasts transformed with SV40 virus (SVT2) and human epidermoid carcinoma A431 malignant cells, and exhibits moderate selectivity for these cancer cells over normal BALB/c-3T3 cells. DiRu-1-AFt triggers the production of reactive oxygen species, depolarization of mitochondrial membrane potential, and induces cell death via p53-mediated apoptosis. Comparison between our data and previous results suggests that the presence of specific interactions between a metal-based drug and AFt within the protein cage is not essential for drug encapsulation.
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Affiliation(s)
- Ganna Petruk
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, via Cinthia 21, 80126, Naples, Italy
| | - Daria Maria Monti
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, via Cinthia 21, 80126, Naples, Italy
| | - Giarita Ferraro
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, via Cinthia 21, 80126, Naples, Italy
| | - Andrea Pica
- EMBL, CS 90181, 71 AV des Martyrs, 38009, Grenoble (38), France
| | - Luigi D'Elia
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, via Cinthia 21, 80126, Naples, Italy
| | - Francesca Pane
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, via Cinthia 21, 80126, Naples, Italy
| | - Angela Amoresano
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, via Cinthia 21, 80126, Naples, Italy
| | - Julien Furrer
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012, Bern, Switzerland
| | - Konrad Kowalski
- Department of Organic Chemistry, Faculty of Chemistry, University of Łódź, Tamka 12, 91-403, Poland
| | - Antonello Merlino
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, via Cinthia 21, 80126, Naples, Italy
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18
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Reaction with Proteins of a Five-Coordinate Platinum(II) Compound. Int J Mol Sci 2019; 20:ijms20030520. [PMID: 30691130 PMCID: PMC6387405 DOI: 10.3390/ijms20030520] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 01/21/2019] [Accepted: 01/23/2019] [Indexed: 02/08/2023] Open
Abstract
Stable five-coordinate Pt(II) complexes have been highlighted as a promising and original platform for the development of new cytotoxic drugs. Their interaction with proteins has been scarcely studied. Here, the reactivity of the five-coordinate Pt(II) compound [Pt(I)(Me) (dmphen)(olefin)] (Me = methyl, dmphen = 2,9-dimethyl-1,10-phenanthroline, olefin = dimethylfumarate) with the model proteins hen egg white lysozyme (HEWL) and bovine pancreatic ribonuclease (RNase A) has been investigated by X-ray crystallography and electrospray ionization mass spectrometry. The X-ray structures of the adducts of RNase A and HEWL with [Pt(I)(Me)(dmphen)(olefin)] are not of very high quality, but overall data indicate that, upon reaction with RNase A, the compound coordinates the side chain of His105 upon releasing the iodide ligand, but retains the pentacoordination. On the contrary, upon reaction with HEWL, the trigonal bi-pyramidal Pt geometry is lost, the iodide and the olefin ligands are released, and the metal center coordinates the side chain of His15 probably adopting a nearly square-planar geometry. This work underlines the importance of the combined use of crystallographic and mass spectrometry techniques to characterize, in detail, the protein–metallodrug recognition process. Our findings also suggest that five-coordinate Pt(II) complexes can act either retaining their uncommon structure or functioning as prodrugs, i.e., releasing square-planar platinum complexes as bioactive species.
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19
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Carrillo W, Lucio A, Gaibor J, Morales D, Vásquez G. Isolation of Antibacterial Hydrolysates from Hen Egg White Lysozyme and Identification of Antibacterial Peptides. J Med Food 2018; 21:808-818. [DOI: 10.1089/jmf.2017.0134] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Affiliation(s)
- Wilman Carrillo
- Research Department, Faculty of Health and Human Sciences, Bolivar State University, Guaranda, Ecuador
| | - Araceli Lucio
- Research Department, Faculty of Health and Human Sciences, Bolivar State University, Guaranda, Ecuador
| | - Juan Gaibor
- Research Department, Faculty of Health and Human Sciences, Bolivar State University, Guaranda, Ecuador
| | - Dayana Morales
- Laboratory of Functional Foods, Faculty of Foods Science and Engineering, Technical University of Ambato, Ambato, Ecuador
| | - Grace Vásquez
- Escuela Superior Politécnica del Litoral, ESPOL, Faculty of Mechanical Engineering and Production Sciences, Guayaquil, Ecuador
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20
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Russo Krauss I, Ferraro G, Pica A, Márquez JA, Helliwell JR, Merlino A. Principles and methods used to grow and optimize crystals of protein-metallodrug adducts, to determine metal binding sites and to assign metal ligands. Metallomics 2018; 9:1534-1547. [PMID: 28967006 DOI: 10.1039/c7mt00219j] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The characterization of the interactions between biological macromolecules (proteins and nucleic acids) and metal-based drugs is a fundamental prerequisite for understanding their mechanisms of action. X-ray crystallography enables the structural analysis of such complexes with atomic level detail. However, this approach requires the preparation of highly diffracting single crystals, the measurement of diffraction patterns and the structural analysis and interpretation of macromolecule-metal interactions from electron density maps. In this review, we describe principles and methods used to grow and optimize crystals of protein-metallodrug adducts, to determine metal binding sites and to assign and validate metal ligands. Examples from the literature and experience in our own laboratory are provided and key challenges are described, notably crystallization and molecular model refinement against the X-ray diffraction data.
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Affiliation(s)
- Irene Russo Krauss
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cintia, I-80126, Napoli, Italy.
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21
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Carrillo W, Ramos M. Identification of Antimicrobial Peptides of Native and Heated Hydrolysates from Hen Egg White Lysozyme. J Med Food 2018; 21:915-926. [PMID: 29688795 DOI: 10.1089/jmf.2017.0132] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Hen eggs are a source of bioactive compounds, of which the hen egg white lysozyme (HEWL) protein. HEWL has a demonstrated antibacterial activity. The aim of this study was to evaluate the antimicrobial activity of native and heated HEWL hydrolysates obtained through hydrolysis with pepsin and to identify their peptides using the reversed phase high performance liquid chromatography-electrospray ionization-tandem mass spectrometry (RP-HPLC-ESI-MS-MS) analysis. Native and heat-treated HEWL was hydrolyzed with pepsin at pH 1.2, and their antibacterial activity was tested against Escherichia coli and Staphylococcus carnosus. Two of the hydrolysates obtained presented high antibacterial activity against Gram-positive and Gram-negative bacteria. Native HEWL hydrolysate was a bactericide at 2.0 mg/mL against E. coli. Fifty-one peptide sequences were identified on the two hydrolysates. Peptides identified are cationic peptides. These peptides are rich in Lys and Arg cationic amino acids and have Trp in their sequences.
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Affiliation(s)
- Wilman Carrillo
- 1 Laboratory of Functional Foods, Faculty of Foods Science and Engineering, Technical University of Ambato , Ambato, Ecuador .,2 Research Institute of Food Science CIAL (CSIC-UAM) , Madrid, Spain
| | - Mercedes Ramos
- 2 Research Institute of Food Science CIAL (CSIC-UAM) , Madrid, Spain
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22
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Cesna V, Sukovas A, Jasukaitiene A, Naginiene R, Barauskas G, Dambrauskas Z, Paskauskas S, Gulbinas A. Narrow line between benefit and harm: Additivity of hyperthermia to cisplatin cytotoxicity in different gastrointestinal cancer cells. World J Gastroenterol 2018; 24:1072-1083. [PMID: 29563752 PMCID: PMC5850127 DOI: 10.3748/wjg.v24.i10.1072] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Revised: 01/02/2018] [Accepted: 01/15/2018] [Indexed: 02/06/2023] Open
Abstract
AIM To investigate the response to hyperthermia and chemotherapy, analyzing apoptosis, cytotoxicity, and cisplatin concentration in different digestive system cancer cells.
METHODS AGS (gastric cancer cell line), Caco-2 (colon cancer cell line) and T3M4 (pancreatic cancer cell line) were treated by cisplatin and different temperature setting (37 °C to 45 °C) either in isolation, or in combination. Treatment lasted for one hour. 48 h after the treatment viability was evaluated by MTT, cell apoptosis by Annexin V-PE and 7ADD flow cytometry. Intracellular cisplatin concentration was measured immediately after the treatment, using mass spectrometry. Isobologram analysis was performed to evaluate the mathematical combined effect of temperature and cisplatin.
RESULTS AGS cells were the most sensitive to isolated application of hyperthermia. Hyperthermia, in addition to cisplatin treatment, did not provoke a synergistic effect at intervals from 37 °C to 41 °C in neither cancer cell line. However, a temperature of 43 °C enhanced cisplatin cytotoxicity for Caco-2 cells. Moreover, isobologram analysis revealed mathematical antagonistic effects of cisplatin and temperature combined treatment in AGS cells; variations between synergistic, additive, and antagonistic effects in Caco-2 cells; and additive and antagonistic effects in T3M4 cells. Combined treatment enhanced initiation of cell apoptosis in AGS, Caco-2, and T3M4 cells by 61%, 20%, and 19% respectively. The increase of intracellular cisplatin concentration was observed at 43 °C by 30%, 20%, and 18% in AGS, Caco-2, and T3M4 cells, respectively.
CONCLUSION In addition to cisplatin, hyperthermia up to 43 °C does not affect the viability of cancer cells in a synergistic manner.
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Affiliation(s)
- Vaidotas Cesna
- Department of Surgery, Lithuanian University of Health Sciences, Kaunas LT-50161, Lithuania
| | - Arturas Sukovas
- Department of Obstetrics and Gynecology, Lithuanian University of Health Sciences, Kaunas LT-50161, Lithuania
| | - Aldona Jasukaitiene
- Institute for Digestive Research, Lithuanian University of Health Sciences, Kaunas LT-50161, Lithuania
| | - Rima Naginiene
- Neuroscience Institute, Lithuanian University of Health Sciences, Kaunas LT-50161, Lithuania
| | - Giedrius Barauskas
- Department of Surgery, Lithuanian University of Health Sciences, Kaunas LT-50161, Lithuania
| | - Zilvinas Dambrauskas
- Institute for Digestive Research, Lithuanian University of Health Sciences, Kaunas LT-50161, Lithuania
| | - Saulius Paskauskas
- Department of Obstetrics and Gynecology, Lithuanian University of Health Sciences, Kaunas LT-50161, Lithuania
| | - Antanas Gulbinas
- Institute for Digestive Research, Lithuanian University of Health Sciences, Kaunas LT-50161, Lithuania
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23
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Messori L, Merlino A. Protein metalation by metal-based drugs: X-ray crystallography and mass spectrometry studies. Chem Commun (Camb) 2018; 53:11622-11633. [PMID: 29019481 DOI: 10.1039/c7cc06442j] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The combined use of X-ray crystallography and mass spectrometry represents a valuable strategy to investigate and characterize protein metalation induced by anticancer metal-based drugs. Here, we summarize a series of significant results recently obtained in our laboratories upon the examination of the structures of several adducts of proteins with representative metallodrugs (mostly containing ruthenium, gold and platinum). The general mechanisms of protein metalation that emerge from a careful comparative analysis of these structures are illustrated and their mechanistic implications are discussed. Possible directions for future work in the field are delineated.
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Affiliation(s)
- L Messori
- Department of Chemistry, University of Florence, Italy.
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24
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Marzo T, Navas F, Cirri D, Merlino A, Ferraro G, Messori L, Quiroga AG. Reactions of a tetranuclear Pt-thiosemicarbazone complex with model proteins. J Inorg Biochem 2018; 181:11-17. [PMID: 29353085 DOI: 10.1016/j.jinorgbio.2018.01.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 12/30/2017] [Accepted: 01/07/2018] [Indexed: 01/21/2023]
Abstract
The tetranuclear Pt complex (PtL)4 (where L2- is the anion derived from para-isopropyl thiosemicarbazone) was first described in A.G. Quiroga et al., J. Med. Chem. 41, 1998, 1399-1408. (PtL)4 manifests antiproliferative properties toward various cancer cell lines being a promising anticancer drug candidate. Yet, details of its reactivity with biomolecules have not been elucidated. To this end, we investigated the reactions of (PtL)4 with a few model proteins, i.e. bovine pancreatic ribonuclease (RNase A), cytochrome c (Cyt c) and hen egg white lysozyme (Lysozyme), through electrospray ionization mass spectrometry and other biophysical methods. A rich reactivity of (PtL)4 with the above-mentioned model proteins is observed, leading to the formation of numerous metallodrug-protein adducts. The tetranuclear complex breaks down and various fragments bind proteins up to high metal/protein ratios; this typically results into very complicated mass spectral patterns. However, some of the main mass peaks could be assigned in the case of the Lysozyme adduct. In addition, crystallographic data were obtained for the (PtL)4/Lysozyme and (PtL)4/RNase A adducts pointing at His side chains as the primary binding sites for monometallic Pt fragments. Notably, a few selected features of the interactions observed in the (PtL)4/protein adducts were reproduced by reacting (PtL)4 with a small molecule, i.e. N-methylimidazole. In conclusion, the present study confirms the prodrug nature of the tetraplatinum complex, clarifies one possible pathway for its activation through cluster disassembly and allows initial identification of adducts formed with a representative protein.
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Affiliation(s)
- Tiziano Marzo
- Department of Chemistry and Industrial Chemistry (DCCI), University of Pisa, Via Moruzzi, 13, 56124 Pisa, Italy; Laboratory of Metals in Medicine (MetMed), Department of Chemistry "U. Schiff", University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
| | - Francisco Navas
- IAdChem (Institute for Advanced Research in Chemical Science) and Department of Inorganic Chemistry, Universidad Autónoma de Madrid, 28049, Spain
| | - Damiano Cirri
- Laboratory of Metals in Medicine (MetMed), Department of Chemistry "U. Schiff", University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
| | - Antonello Merlino
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, via Cintia, I-80126 Napoli, Italy
| | - Giarita Ferraro
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, via Cintia, I-80126 Napoli, Italy
| | - Luigi Messori
- Laboratory of Metals in Medicine (MetMed), Department of Chemistry "U. Schiff", University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy.
| | - Adoracion G Quiroga
- IAdChem (Institute for Advanced Research in Chemical Science) and Department of Inorganic Chemistry, Universidad Autónoma de Madrid, 28049, Spain.
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25
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Sullivan MP, Nieuwoudt MK, Bowmaker GA, Lam NYS, Truong D, Goldstone DC, Hartinger CG. Unexpected arene ligand exchange results in the oxidation of an organoruthenium anticancer agent: the first X-ray structure of a protein–Ru(carbene) adduct. Chem Commun (Camb) 2018; 54:6120-6123. [DOI: 10.1039/c8cc02433b] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The first crystallographic study of a Ru(carbene)–protein adduct is complemented by EPR spectroscopy showing Ru oxidation upon binding.
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Affiliation(s)
- Matthew P. Sullivan
- School of Chemical Sciences
- University of Auckland
- Auckland 1142
- New Zealand
- School of Biological Sciences
| | - Michél K. Nieuwoudt
- School of Chemical Sciences
- University of Auckland
- Auckland 1142
- New Zealand
- The Photon Factory
| | - Graham A. Bowmaker
- School of Chemical Sciences
- University of Auckland
- Auckland 1142
- New Zealand
| | - Nelson Y. S. Lam
- School of Chemical Sciences
- University of Auckland
- Auckland 1142
- New Zealand
| | - Dianna Truong
- School of Chemical Sciences
- University of Auckland
- Auckland 1142
- New Zealand
| | - David C. Goldstone
- School of Biological Sciences
- University of Auckland
- Auckland 1142
- New Zealand
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26
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Ferraro G, Mansour AM, Merlino A. Exploring the interactions between model proteins and Pd(ii) or Pt(ii) compounds bearing charged N,N-pyridylbenzimidazole bidentate ligands by X-ray crystallography. Dalton Trans 2018; 47:10130-10138. [DOI: 10.1039/c8dt01663a] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
X-ray structure of the adducts formed between lysozyme and Pd(ii) and Pt(ii) compounds bearing N,N-pyridylbenzimidazole derivatives with an alkylated sulfonate or phosphonium side chain are reported.
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Affiliation(s)
- Giarita Ferraro
- Department of Chemical Sciences
- University of Naples Federico II
- Complesso Universitario di Monte Sant'Angelo
- 80126 Napoli
- Italy
| | - Ahmed M. Mansour
- Department of Chemistry
- Faculty of Science
- Cairo University
- Giza
- Egypt
| | - Antonello Merlino
- Department of Chemical Sciences
- University of Naples Federico II
- Complesso Universitario di Monte Sant'Angelo
- 80126 Napoli
- Italy
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27
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Ferraro G, Marzo T, Infrasca T, Cilibrizzi A, Vilar R, Messori L, Merlino A. A case of extensive protein platination: the reaction of lysozyme with a Pt(ii)–terpyridine complex. Dalton Trans 2018; 47:8716-8723. [DOI: 10.1039/c8dt01254g] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The interaction between a Pt(ii)–terpyridine cytotoxic compound and the model protein lysozyme has been investigated by X-ray crystallography and electrospray mass spectrometry under different experimental conditions. The compound shows a high reactivity with the model protein.
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Affiliation(s)
- Giarita Ferraro
- Department of Chemical Sciences
- University of Naples Federico II
- Complesso Universitario di Monte Sant'Angelo
- I-80126 Napoli
- Italy
| | - Tiziano Marzo
- Department of Chemistry and Industrial Chemistry (DCCI)
- University of Pisa
- 56124 Pisa
- Italy
- Laboratory of Metals in Medicine (MetMed)
| | - Teresa Infrasca
- Department of Chemical Sciences
- University of Naples Federico II
- Complesso Universitario di Monte Sant'Angelo
- I-80126 Napoli
- Italy
| | - Agostino Cilibrizzi
- Department of Chemistry
- Imperial College London
- London SW7 2AZ
- UK
- Institute of Pharmaceutical Science
| | - Ramon Vilar
- Department of Chemistry
- Imperial College London
- London SW7 2AZ
- UK
| | - Luigi Messori
- Laboratory of Metals in Medicine (MetMed)
- Department of Chemistry “U. Schiff”
- University of Florence
- 50019 Sesto Fiorentino
- Italy
| | - Antonello Merlino
- Department of Chemical Sciences
- University of Naples Federico II
- Complesso Universitario di Monte Sant'Angelo
- I-80126 Napoli
- Italy
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Ferraro G, De Benedictis I, Malfitano A, Morelli G, Novellino E, Marasco D. Interactions of cisplatin analogues with lysozyme: a comparative analysis. Biometals 2017; 30:733-746. [DOI: 10.1007/s10534-017-0041-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Accepted: 08/07/2017] [Indexed: 10/19/2022]
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Sullivan MP, Groessl M, Meier SM, Kingston RL, Goldstone DC, Hartinger CG. The metalation of hen egg white lysozyme impacts protein stability as shown by ion mobility mass spectrometry, differential scanning calorimetry, and X-ray crystallography. Chem Commun (Camb) 2017; 53:4246-4249. [DOI: 10.1039/c6cc10150j] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Metalation of lysozyme with anticancer organometallics results in protein destabilisation, probably relevant in metallodrug mode of action.
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Affiliation(s)
- Matthew P. Sullivan
- School of Chemical Sciences
- University of Auckland
- Auckland
- New Zealand
- School of Biological Sciences
| | | | - Samuel M. Meier
- Institute of Analytical Chemistry
- University of Vienna
- Vienna
- Austria
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30
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Russo Krauss I, Ferraro G, Merlino A. Cisplatin-Protein Interactions: Unexpected Drug Binding to N-Terminal Amine and Lysine Side Chains. Inorg Chem 2016; 55:7814-6. [PMID: 27482735 DOI: 10.1021/acs.inorgchem.6b01234] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Literature studies carried out by mass spectrometry and X-ray crystallography have demonstrated that cisplatin is able to bind proteins mainly close to Met, His, and free Cys side chains. To identify possible alternative modes of cisplatin binding to proteins at the molecular level, here we have solved the high-resolution X-ray structure of the adduct formed in the reaction between the drug and the model protein thaumatin, which does not contain any His and free Cys residues and possesses just one buried Met. Our data reveal unexpected cisplatin binding sites on the protein surface that could have general significance: cisplatin fragments -[Pt(NH3)2Cl](+), -[Pt(NH3)Cl2], and -[Pt(NH3)2(OH2)](2+) bind to a protein N-terminus and close to Lys and Glu side chains.
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Affiliation(s)
- Irene Russo Krauss
- Department of Chemical Sciences, University of Naples Federico II , Via Cintia, I-80126 Naples, Italy
| | - Giarita Ferraro
- Department of Chemical Sciences, University of Naples Federico II , Via Cintia, I-80126 Naples, Italy
| | - Antonello Merlino
- Department of Chemical Sciences, University of Naples Federico II , Via Cintia, I-80126 Naples, Italy
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