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Dianzani C, Bozza A, Bordano V, Cangemi L, Ferraris C, Foglietta F, Monge C, Gallicchio M, Pizzimenti S, Marini E, Muntoni E, Valsania MC, Battaglia L. Cell Membrane Fragment-Wrapped Parenteral Nanoemulsions: A New Drug Delivery Tool to Target Gliomas. Cells 2024; 13:641. [PMID: 38607080 PMCID: PMC11011487 DOI: 10.3390/cells13070641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 02/28/2024] [Accepted: 04/03/2024] [Indexed: 04/13/2024] Open
Abstract
Poor prognosis in high-grade gliomas is mainly due to fatal relapse after surgical resection in the absence of efficient chemotherapy, which is severely hampered by the blood-brain barrier. However, the leaky blood-brain-tumour barrier forms upon tumour growth and vascularization, allowing targeted nanocarrier-mediated drug delivery. The homotypic targeting ability of cell-membrane fragments obtained from cancer cells means that these fragments can be exploited to this aim. In this experimental work, injectable nanoemulsions, which have a long history of safe clinic usage, have been wrapped in glioma-cell membrane fragments via co-extrusion to give targeted, homogeneously sized, sterile formulations. These systems were then loaded with three different chemotherapeutics, in the form of hydrophobic ion pairs that can be released into the target site thanks to interactions with physiological components. The numerous assays performed in two-dimensional (2D) and three-dimensional (3D) cell models demonstrate that the proposed approach is a versatile drug-delivery platform with chemo-tactic properties towards glioma cells, with adhesive interactions between the target cell and the cell membrane fragments most likely being responsible for the effect. This approach's promising translational perspectives towards personalized nanomedicine mean that further in vivo studies are foreseen for the future.
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Affiliation(s)
- Chiara Dianzani
- Department of Drug Science and Technology, University of Turin, via Pietro Giuria 9, 10124 Turin, Italy; (C.D.); (A.B.); (V.B.); (L.C.); (C.F.); (F.F.); (C.M.); (M.G.); (E.M.); (E.M.)
| | - Annalisa Bozza
- Department of Drug Science and Technology, University of Turin, via Pietro Giuria 9, 10124 Turin, Italy; (C.D.); (A.B.); (V.B.); (L.C.); (C.F.); (F.F.); (C.M.); (M.G.); (E.M.); (E.M.)
| | - Valentina Bordano
- Department of Drug Science and Technology, University of Turin, via Pietro Giuria 9, 10124 Turin, Italy; (C.D.); (A.B.); (V.B.); (L.C.); (C.F.); (F.F.); (C.M.); (M.G.); (E.M.); (E.M.)
| | - Luigi Cangemi
- Department of Drug Science and Technology, University of Turin, via Pietro Giuria 9, 10124 Turin, Italy; (C.D.); (A.B.); (V.B.); (L.C.); (C.F.); (F.F.); (C.M.); (M.G.); (E.M.); (E.M.)
| | - Chiara Ferraris
- Department of Drug Science and Technology, University of Turin, via Pietro Giuria 9, 10124 Turin, Italy; (C.D.); (A.B.); (V.B.); (L.C.); (C.F.); (F.F.); (C.M.); (M.G.); (E.M.); (E.M.)
| | - Federica Foglietta
- Department of Drug Science and Technology, University of Turin, via Pietro Giuria 9, 10124 Turin, Italy; (C.D.); (A.B.); (V.B.); (L.C.); (C.F.); (F.F.); (C.M.); (M.G.); (E.M.); (E.M.)
| | - Chiara Monge
- Department of Drug Science and Technology, University of Turin, via Pietro Giuria 9, 10124 Turin, Italy; (C.D.); (A.B.); (V.B.); (L.C.); (C.F.); (F.F.); (C.M.); (M.G.); (E.M.); (E.M.)
| | - Margherita Gallicchio
- Department of Drug Science and Technology, University of Turin, via Pietro Giuria 9, 10124 Turin, Italy; (C.D.); (A.B.); (V.B.); (L.C.); (C.F.); (F.F.); (C.M.); (M.G.); (E.M.); (E.M.)
| | - Stefania Pizzimenti
- Department of Clinical and Biological Sciences, University of Turin, Corso Raffaello 30, 10124 Turin, Italy;
| | - Elisabetta Marini
- Department of Drug Science and Technology, University of Turin, via Pietro Giuria 9, 10124 Turin, Italy; (C.D.); (A.B.); (V.B.); (L.C.); (C.F.); (F.F.); (C.M.); (M.G.); (E.M.); (E.M.)
| | - Elisabetta Muntoni
- Department of Drug Science and Technology, University of Turin, via Pietro Giuria 9, 10124 Turin, Italy; (C.D.); (A.B.); (V.B.); (L.C.); (C.F.); (F.F.); (C.M.); (M.G.); (E.M.); (E.M.)
| | - Maria Carmen Valsania
- Department of Chemistry, University of Turin, Via Quarello 15/a, 10135 Turin, Italy;
- Nanostructured Interfaces and Surfaces (NIS) Interdepartmental Centre, University of Turin, 10124 Turin, Italy
| | - Luigi Battaglia
- Department of Drug Science and Technology, University of Turin, via Pietro Giuria 9, 10124 Turin, Italy; (C.D.); (A.B.); (V.B.); (L.C.); (C.F.); (F.F.); (C.M.); (M.G.); (E.M.); (E.M.)
- Nanostructured Interfaces and Surfaces (NIS) Interdepartmental Centre, University of Turin, 10124 Turin, Italy
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Zöller K, Karlegger A, Truszkowska M, Stengel D, Bernkop-Schnürch A. Fluorescent hydrophobic ion pairs: A powerful tool to investigate cellular uptake of hydrophobic drug complexes via lipid-based nanocarriers. J Colloid Interface Sci 2024; 654:174-188. [PMID: 37839235 DOI: 10.1016/j.jcis.2023.10.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 09/20/2023] [Accepted: 10/01/2023] [Indexed: 10/17/2023]
Abstract
HYPOTHESIS Hydrophobic ion pairs (HIPs) between two fluorescent components and incorporation into nanoemulsions (NE) allows tracking in cellular uptake studies. EXPERIMENTS HIPs were formed between propidium iodide and 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine-N-(7-nitro-2-1,3-benzoxadiazol-4-yl) (NBD-PE), azure A chloride and NBD-PE or coumarin 343 and 4-(4-dihexadecylaminostyryl)-N-methylpyridinium iodide) (DiA). Fluorescence spectra of the resulting complexes were recorded. HIPs were loaded into zwitterionic NE and their size, stability in different media, haemolytic properties and cytotoxicity were evaluated. Furthermore, cellular uptake at 37 °C and 4 °C was investigated via flow cytometry and confocal microscopy. FINDINGS HIP-formation increased lipophilicity of the hydrophilic model drugs. NE exhibited a size between 80 and 150 nm and were not toxic in concentrations up to 0.1 % but showed high haemolytic properties. Cellular uptake of propidium, azure A and coumarin 343 were 8-fold, 115-fold and 1.3-fold improved by the formation of HIPs and up to 59-fold, 120-fold and 50-fold by incorporating these HIPs in NE, respectively. Lower uptake was observed at 4 °C. In case of propidium/ NBD-PE and azure A/ NBD-PE HIPs, propidium and azure A were delivered into the cytosol, whereas NBD-PE was unable to enter cells. In case of coumarin 343/ DiA HIPs, both components accumulated in the cell membrane. Therefore, HIPs between two fluorescent compounds are a powerful tool to investigate cellular uptake of hydrophobic complexes via nanocarriers by visualization of their cellular distribution.
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Affiliation(s)
- Katrin Zöller
- Center for Chemistry and Biomedicine, Department of Pharmaceutical Technology, Institute of Pharmacy, Leopold-Franzens-University of Innsbruck, Innrain 80/82, 6020 Innsbruck, Austria
| | - Anna Karlegger
- Center for Chemistry and Biomedicine, Department of Pharmaceutical Technology, Institute of Pharmacy, Leopold-Franzens-University of Innsbruck, Innrain 80/82, 6020 Innsbruck, Austria
| | - Martyna Truszkowska
- Center for Chemistry and Biomedicine, Department of Pharmaceutical Technology, Institute of Pharmacy, Leopold-Franzens-University of Innsbruck, Innrain 80/82, 6020 Innsbruck, Austria
| | - Daniel Stengel
- Center for Chemistry and Biomedicine, Department of Pharmaceutical Technology, Institute of Pharmacy, Leopold-Franzens-University of Innsbruck, Innrain 80/82, 6020 Innsbruck, Austria
| | - Andreas Bernkop-Schnürch
- Center for Chemistry and Biomedicine, Department of Pharmaceutical Technology, Institute of Pharmacy, Leopold-Franzens-University of Innsbruck, Innrain 80/82, 6020 Innsbruck, Austria.
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3
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Tanga S, Aucamp M, Ramburrun P. Injectable Thermoresponsive Hydrogels for Cancer Therapy: Challenges and Prospects. Gels 2023; 9:gels9050418. [PMID: 37233009 DOI: 10.3390/gels9050418] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 05/06/2023] [Accepted: 05/08/2023] [Indexed: 05/27/2023] Open
Abstract
The enervating side effects of chemotherapeutic drugs have necessitated the use of targeted drug delivery in cancer therapy. To that end, thermoresponsive hydrogels have been employed to improve the accumulation and maintenance of drug release at the tumour site. Despite their efficiency, very few thermoresponsive hydrogel-based drugs have undergone clinical trials, and even fewer have received FDA approval for cancer treatment. This review discusses the challenges of designing thermoresponsive hydrogels for cancer treatment and offers suggestions for these challenges as available in the literature. Furthermore, the argument for drug accumulation is challenged by the revelation of structural and functional barriers in tumours that may not support targeted drug release from hydrogels. Other highlights involve the demanding preparation process of thermoresponsive hydrogels, which often involves poor drug loading and difficulties in controlling the lower critical solution temperature and gelation kinetics. Additionally, the shortcomings in the administration process of thermosensitive hydrogels are examined, and special insight into the injectable thermosensitive hydrogels that reached clinical trials for cancer treatment is provided.
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Affiliation(s)
- Sandrine Tanga
- School of Pharmacy, Faculty of Natural Sciences, University of the Western Cape, Bellville 7535, South Africa
| | - Marique Aucamp
- School of Pharmacy, Faculty of Natural Sciences, University of the Western Cape, Bellville 7535, South Africa
| | - Poornima Ramburrun
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg 2193, South Africa
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Elhalmoushy PM, Elsheikh MA, Matar NA, El-Hadidy WF, Kamel MA, Omran GA, Elnaggar YS. Novel Berberine-Loaded Hyalurosomes as A Promising Nanodermatological Treatment for Vitiligo: Biochemical, Biological and Gene Expression Studies. Int J Pharm 2022; 615:121523. [DOI: 10.1016/j.ijpharm.2022.121523] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 01/16/2022] [Accepted: 01/24/2022] [Indexed: 01/16/2023]
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5
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Bakhonsky VV, Pashenko AA, Becker J, Hausmann H, De Groot HJM, Overkleeft HS, Fokin AA, Schreiner PR. Synthesis and antiproliferative activity of hindered, chiral 1,2-diaminodiamantane platinum(II) complexes. Dalton Trans 2021; 49:14009-14016. [PMID: 33078783 DOI: 10.1039/d0dt02391d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Platinum-based antineoplastic agents play a major role in the treatment of numerous types of cancer. A new bulky, lipophilic, and chiral ligand based on 1,2-diaminodiamantane in both of its enantiomeric forms was employed for the preparation of new platinum(ii) complexes with chloride and oxalate ligands. The dichloride complexes have a higher solubility and were evaluated as anti-proliferation agents for human ovarian cancer cell lines A2780 and cisplatin-resistant A2780cis. Its R,R-enantiomer showed increased efficacy compared to cisplatin for both cancer cell lines. A chromatographic approach was used to estimate the solvent partition coefficient of the dichloride complex. The binding of diamondoid-based platinum complexes to nucleotides was tested for both enantiomers with guanosine monophosphate (GMP) and deoxyguanosine monophosphate (dGMP) and occurs at a similar or faster rate for both isomers compared to cisplatin despite greatly increased steric demand. These findings highlight the potential in 1,2-diaminodiamantane as a viable pharmacophore.
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Affiliation(s)
- Vladyslav V Bakhonsky
- Institute of Organic Chemistry, Justus Liebig University, Heinrich-Buff-Ring 17, 35392 Giessen, Germany and Center for Materials Research (LaMa), Justus Liebig University, Heinrich-Buff-Ring 16, 35392 Giessen, Germany. and Department of Organic Chemistry, Igor Sikorsky Kiev Polytechnic Institute, Pobedy Ave. 37, 03056 Kiev, Ukraine.
| | - Aleksander A Pashenko
- Department of Organic Chemistry, Igor Sikorsky Kiev Polytechnic Institute, Pobedy Ave. 37, 03056 Kiev, Ukraine. and Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2300RA Leiden, The Netherlands
| | - Jonathan Becker
- Institute of Inorganic and Analytical Chemistry, Justus-Liebig-Universität, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
| | - Heike Hausmann
- Institute of Organic Chemistry, Justus Liebig University, Heinrich-Buff-Ring 17, 35392 Giessen, Germany and Center for Materials Research (LaMa), Justus Liebig University, Heinrich-Buff-Ring 16, 35392 Giessen, Germany.
| | - Huub J M De Groot
- Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2300RA Leiden, The Netherlands
| | - Herman S Overkleeft
- Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2300RA Leiden, The Netherlands
| | - Andrey A Fokin
- Institute of Organic Chemistry, Justus Liebig University, Heinrich-Buff-Ring 17, 35392 Giessen, Germany and Center for Materials Research (LaMa), Justus Liebig University, Heinrich-Buff-Ring 16, 35392 Giessen, Germany. and Department of Organic Chemistry, Igor Sikorsky Kiev Polytechnic Institute, Pobedy Ave. 37, 03056 Kiev, Ukraine.
| | - Peter R Schreiner
- Institute of Organic Chemistry, Justus Liebig University, Heinrich-Buff-Ring 17, 35392 Giessen, Germany and Center for Materials Research (LaMa), Justus Liebig University, Heinrich-Buff-Ring 16, 35392 Giessen, Germany.
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Ristroph K, Salim M, Wilson BK, Clulow AJ, Boyd BJ, Prud'homme RK. Internal liquid crystal structures in nanocarriers containing drug hydrophobic ion pairs dictate drug release. J Colloid Interface Sci 2021; 582:815-824. [DOI: 10.1016/j.jcis.2020.08.045] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/11/2020] [Accepted: 08/12/2020] [Indexed: 12/28/2022]
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7
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Sharma S, Al Hosani S, Kalmouni M, Nair AR, Palanikumar L, Pasricha R, Sadler KC, Magzoub M, Jagannathan R. Supercritical CO 2 Processing Generates Aqueous Cisplatin Solutions with Enhanced Cancer Specificity. ACS OMEGA 2020; 5:4558-4567. [PMID: 32175502 PMCID: PMC7066560 DOI: 10.1021/acsomega.9b03917] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Accepted: 02/12/2020] [Indexed: 06/10/2023]
Abstract
Cisplatin is a highly toxic material used clinically as a potent chemotherapeutic. While effective against some cancers, toxicity limits widespread use and low solubility confounds delivery. To formulate a better tolerated and more water-soluble form of cisplatin, we designed a rapid expansion of supercritical solutions (RESS) technique with supercritical carbon dioxide (sc-CO2) to collect nanoclusters of cisplatin embedded in dry ice, in a dual-stage collection vessel cooled to liquid nitrogen temperature. These nanoclusters were solubilized in deionized water and further concentrated (up to 51.3 mM) by a Rotovap process, yielding stable cisplatin solutions with solubility up to 15 × (w/w) greater than that of normal cisplatin. Extensive material characterizations of the solutions were carried out to determine any chemical and/or structural changes of the RESS-processed cisplatin. In vitro cytotoxicity studies of these aqueous solutions showed increased cell viability and early apoptosis compared to equivalent concentrations of standard cisplatin solutions. In vivo studies using zebrafish embryos revealed that standard cisplatin solutions were acutely toxic and caused death of rapidly proliferating cells compared to RESS-processed cisplatin, which were better tolerated with reduced general cell death. Increased water solubility and matched chemical identity of RESS-processed aqueous cisplatin solutions indicate the potential to open up novel drug-delivery routes, which is beneficial for new pharmaceutical design and development.
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Affiliation(s)
| | | | - Mona Kalmouni
- Program
in Biology, New York University, Abu Dhabi, UAE
| | | | | | - Renu Pasricha
- Core
Technology Platform, New York University, Abu Dhabi, UAE
| | | | - Mazin Magzoub
- Program
in Biology, New York University, Abu Dhabi, UAE
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Marverti G, Gozzi G, Lauriola A, Ponterini G, Belluti S, Imbriano C, Costi MP, D’Arca D. The 1,10-Phenanthroline Ligand Enhances the Antiproliferative Activity of DNA-Intercalating Thiourea-Pd(II) and -Pt(II) Complexes Against Cisplatin-Sensitive and -Resistant Human Ovarian Cancer Cell Lines. Int J Mol Sci 2019; 20:E6122. [PMID: 31817267 PMCID: PMC6969938 DOI: 10.3390/ijms20246122] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 11/30/2019] [Accepted: 12/02/2019] [Indexed: 11/25/2022] Open
Abstract
Ovarian cancer is the most lethal gynecological malignancy, often because of the frequent insurgence of chemoresistance to the drugs currently used. Thus, new therapeutical agents are needed. We tested the toxicity of 16 new DNA-intercalating agents to cisplatin (cDDP)-sensitive human ovarian carcinoma cell lines and their resistant counterparts. The compounds were the complexes of Pt(II) or Pd(II) with bipyridyl (bipy) and phenanthrolyl (phen) and with four different thiourea ancillary ligands. Within each of the four series of complexes characterized by the same thiourea ligand, the Pd(phen) drugs invariably showed the highest anti-proliferative efficacy. This paralleled both a higher intracellular drug accumulation and a more efficient DNA intercalation than all the other metal-bidentate ligand combinations. The consequent inhibition of topoisomerase II activity led to the greatest inhibition of DNA metabolism, evidenced by the inhibition of the expression of the folate cycle enzymes and a marked perturbation of cell-cycle distribution in both cell lines. These findings indicate that the particular interaction of Pd(II) with phenanthroline confers the best pharmacokinetic and pharmacodynamic properties that make this class of DNA intercalators remarkable inhibitors, even of the resistant cell growth.
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Affiliation(s)
- Gaetano Marverti
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Via Campi 287, 41125 Modena, Italy; (G.G.); (A.L.)
| | - Gaia Gozzi
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Via Campi 287, 41125 Modena, Italy; (G.G.); (A.L.)
| | - Angela Lauriola
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Via Campi 287, 41125 Modena, Italy; (G.G.); (A.L.)
| | - Glauco Ponterini
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Campi 213/d, 41125 Modena, Italy; (G.P.); (S.B.); (C.I.); (M.P.C.)
| | - Silvia Belluti
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Campi 213/d, 41125 Modena, Italy; (G.P.); (S.B.); (C.I.); (M.P.C.)
| | - Carol Imbriano
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Campi 213/d, 41125 Modena, Italy; (G.P.); (S.B.); (C.I.); (M.P.C.)
| | - Maria Paola Costi
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Campi 213/d, 41125 Modena, Italy; (G.P.); (S.B.); (C.I.); (M.P.C.)
| | - Domenico D’Arca
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Via Campi 287, 41125 Modena, Italy; (G.G.); (A.L.)
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Ristroph KD, Prud'homme RK. Hydrophobic ion pairing: encapsulating small molecules, peptides, and proteins into nanocarriers. NANOSCALE ADVANCES 2019; 1:4207-4237. [PMID: 33442667 PMCID: PMC7771517 DOI: 10.1039/c9na00308h] [Citation(s) in RCA: 132] [Impact Index Per Article: 26.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Accepted: 09/18/2019] [Indexed: 05/26/2023]
Abstract
Hydrophobic ion pairing has emerged as a method to modulate the solubility of charged hydrophilic molecules ranging in class from small molecules to large enzymes. Charged hydrophilic molecules are ionically paired with oppositely-charged molecules that include hydrophobic moieties; the resulting uncharged complex is water-insoluble and will precipitate in aqueous media. Here we review one of the most prominent applications of hydrophobic ion pairing: efficient encapsulation of charged hydrophilic molecules into nano-scale delivery vehicles - nanoparticles or nanocarriers. Hydrophobic complexes are formed and then encapsulated using techniques developed for poorly-water-soluble therapeutics. With this approach, researchers have reported encapsulation efficiencies up to 100% and drug loadings up to 30%. This review covers the fundamentals of hydrophobic ion pairing, including nomenclature, drug eligibility for the technique, commonly-used counterions, and drug release of encapsulated ion paired complexes. We then focus on nanoformulation techniques used in concert with hydrophobic ion pairing and note strengths and weaknesses specific to each. The penultimate section bridges hydrophobic ion pairing with the related fields of polyelectrolyte coacervation and polyelectrolyte-surfactant complexation. We then discuss the state of the art and anticipated future challenges. The review ends with comprehensive tables of reported hydrophobic ion pairing and encapsulation from the literature.
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Affiliation(s)
- Kurt D. Ristroph
- Department of Chemical and Biological Engineering, Princeton UniversityPrincetonNew Jersey 08544USA
| | - Robert K. Prud'homme
- Department of Chemical and Biological Engineering, Princeton UniversityPrincetonNew Jersey 08544USA
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10
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Weinstein ZB, Kuru N, Kiriakov S, Palmer AC, Khalil AS, Clemons PA, Zaman MH, Roth FP, Cokol M. Modeling the impact of drug interactions on therapeutic selectivity. Nat Commun 2018; 9:3452. [PMID: 30150706 PMCID: PMC6110842 DOI: 10.1038/s41467-018-05954-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2016] [Accepted: 07/27/2018] [Indexed: 01/12/2023] Open
Abstract
Combination therapies that produce synergistic growth inhibition are widely sought after for the pharmacotherapy of many pathological conditions. Therapeutic selectivity, however, depends on the difference between potency on disease-causing cells and potency on non-target cell types that cause toxic side effects. Here, we examine a model system of antimicrobial compound combinations applied to two highly diverged yeast species. We find that even though the drug interactions correlate between the two species, cell-type-specific differences in drug interactions are common and can dramatically alter the selectivity of compounds when applied in combination vs. single-drug activity-enhancing, diminishing, or inverting therapeutic windows. This study identifies drug combinations with enhanced cell-type-selectivity with a range of interaction types, which we experimentally validate using multiplexed drug-interaction assays for heterogeneous cell cultures. This analysis presents a model framework for evaluating drug combinations with increased efficacy and selectivity against pathogens or tumors.
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Affiliation(s)
- Zohar B Weinstein
- Department of Pharmacology and Experimental Therapeutics, Boston University School of Medicine, Boston, MA, 02115, USA
| | - Nurdan Kuru
- Faculty of Engineering and Natural Sciences, Sabanci University, 34956, Istanbul, Turkey
| | - Szilvia Kiriakov
- Program in Molecular Biology, Cell Biology & Biochemistry, Boston University, Boston, MA, 02215, USA
- Biological Design Center, Boston University, Boston, MA, 02215, USA
| | - Adam C Palmer
- Laboratory of Systems Pharmacology, Harvard Medical School, Boston, MA, 02115, USA
| | - Ahmad S Khalil
- Biological Design Center, Boston University, Boston, MA, 02215, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
- Department of Biomedical Engineering, Boston University, Boston, MA, 02215, USA
| | - Paul A Clemons
- Chemical Biology & Therapeutics Science Program, Broad Institute of Harvard and MIT, Cambridge, MA, 02142, USA
| | - Muhammad H Zaman
- Department of Biomedical Engineering, Boston University, Boston, MA, 02215, USA
- Howard Hughes Medical Institute, Boston University, Boston, MA, 02215, USA
| | - Frederick P Roth
- Donnelly Centre and Departments of Molecular Genetics and Computer Science, University of Toronto, Toronto, ON, M5S 3E1, Canada
- Lunenfeld-Tanenbaum Research Institute, Toronto, ON, M5S 3E1, Canada
- Canadian Institute for Advanced Research, Toronto, ON, M5S 3E1, Canada
| | - Murat Cokol
- Faculty of Engineering and Natural Sciences, Sabanci University, 34956, Istanbul, Turkey.
- Laboratory of Systems Pharmacology, Harvard Medical School, Boston, MA, 02115, USA.
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11
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Bondžić AM, Janjić GV, Dramićanin MD, Messori L, Massai L, Parac Vogt TN, Vasić VM. Na/K-ATPase as a target for anticancer metal based drugs: insights into molecular interactions with selected gold(iii) complexes. Metallomics 2017; 9:292-300. [PMID: 28181616 DOI: 10.1039/c7mt00017k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Na/K-ATPase is emerging as an important target for a variety of anticancer metal-based drugs. The interactions of Na/K-ATPase (in its E1 state) with three representative and structurally related cytotoxic gold(iii) complexes, i.e. [Au(bipy)(OH)2][PF6], bipy = 2,2'-bipyridine; [Au(pydmb-H)(CH3COO)2], pydmb-H = deprotonated 6-(1,1-dimethylbenzyl)-pyridine and [Au(bipydmb-H)(OH)][PF6], bipyc-H = deprotonated 6-(1,1-dimethylbenzyl)-2,2'-bipyridine, are investigated here in depth using a variety of spectroscopic methods, in combination with docking studies. Detailed information is gained on the conformational and structural changes experienced by the enzyme upon binding of these gold(iii) complexes. The quenching constants of intrinsic enzyme fluorescence, the fraction of Trp residues accessible to gold(iii) complexes and the reaction stoichiometries were determined in various cases. Specific hypotheses are made concerning the binding mode of these gold(iii) complexes to the enzyme and the likely binding sites. Differences in their binding behaviour toward Na/K-ATPase are explained on the ground of their distinctive structural features. The present results offer further support to the view that Na/K-ATPase may be a relevant biomolecular target for cytotoxic gold(iii) compounds of medicinal interest and may thus be involved in their overall mode of action.
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Affiliation(s)
- Aleksandra M Bondžić
- Department of Physical Chemistry, Vinča Institute of Nuclear Sciences, University of Belgrade, PO Box 522, Belgrade, 11000, Serbia.
| | - Goran V Janjić
- Institute of Chemistry, Metallurgy and Technology, University of Belgrade, Njegoseva Street 12, Belgrade, 11000, Serbia
| | - Miroslav D Dramićanin
- Department of Physical Chemistry, Vinča Institute of Nuclear Sciences, University of Belgrade, PO Box 522, Belgrade, 11000, Serbia.
| | - Luigi Messori
- Department of Chemistry, University of Florence, Via Della Lastruccia 3, Sesto Fiorentino, 50019, Italy.
| | - Lara Massai
- Department of Chemistry, University of Florence, Via Della Lastruccia 3, Sesto Fiorentino, 50019, Italy.
| | | | - Vesna M Vasić
- Department of Physical Chemistry, Vinča Institute of Nuclear Sciences, University of Belgrade, PO Box 522, Belgrade, 11000, Serbia.
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12
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Dou YN, Chaudary N, Chang MC, Dunne M, Huang H, Jaffray DA, Milosevic M, Allen C. Tumor microenvironment determines response to a heat-activated thermosensitive liposome formulation of cisplatin in cervical carcinoma. J Control Release 2017; 262:182-191. [PMID: 28760449 DOI: 10.1016/j.jconrel.2017.07.039] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Revised: 07/25/2017] [Accepted: 07/28/2017] [Indexed: 01/02/2023]
Abstract
Significant heterogeneity in the tumor microenvironment of human cervical cancer patients is known to challenge treatment outcomes in this population. The current standard of care for cervical cancer patients is radiation therapy and concurrent cisplatin (CDDP) chemotherapy. Yet this treatment strategy fails to control loco-regional disease in 10-30% of patients. In order to improve the loco-regional control rate, a thermosensitive liposome formulation of CDDP (HTLC) was developed to increase local concentrations of drug in response to mild hyperthermia (HT). The HTLC formulation in combination with local HT demonstrated a significant therapeutic advantage in comparison to free drug and Lipoplatin™ in ME-180 and SiHa xenograft models of human cervical cancer, as well as in four distinct cervical patient-derived xenograft models. Differential response to HTLC+HT treatment was observed between the ME-180 and SiHa tumor models. Tumor doubling time, in vitro cell sensitivity, and tumor drug accumulation were found to be non-predictive of treatment efficacy. Rather, tumor microenvironment parameters, in particular elevated levels of both tumor hypoxia and associated stromal content, were found to serve as the overriding factors that limit drug efficacy. The prognostic value of these markers may enable stratification of cervical cancer patients for implementation of personalized medicine in the clinical setting.
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Affiliation(s)
- Yannan N Dou
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON M5S 3M2, Canada
| | - Naz Chaudary
- Ontario Cancer Institute, Princess Margaret Cancer Center and The Campbell Family Institute for Cancer Research, Toronto, ON M5G 0A3, Canada
| | - Martin C Chang
- Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Toronto, ON M5G 1X5, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Michael Dunne
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON M5S 3M2, Canada
| | - Huang Huang
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON M5T 3M7, Canada
| | - David A Jaffray
- Techna Institute, University Health Network, Toronto, ON M5G 1L5, Canada; Department of Radiation Oncology, University of Toronto, ON M5S 3E2, Canada
| | - Michael Milosevic
- Department of Radiation Oncology, University of Toronto, ON M5S 3E2, Canada; Radiation Medicine Program, Princess Margaret Cancer Center, University Health Network, Toronto, ON M5G 2M9, Canada
| | - Christine Allen
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON M5S 3M2, Canada.
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13
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Safwat MA, Soliman GM, Sayed D, Attia MA. Gold nanoparticles capped with benzalkonium chloride and poly (ethylene imine) for enhanced loading and skin permeability of 5-fluorouracil. Drug Dev Ind Pharm 2017; 43:1780-1791. [PMID: 28581826 DOI: 10.1080/03639045.2017.1339082] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
OBJECTIVE To enhance 5-fluorouracil (5-FU) permeability through the skin by loading onto gold nanoparticles (GNPs) capped with two cationic ligands, benzalkonium chloride (BC) or poly (ethylene imine) (PEI). Whereas 5-FU has excellent efficacy against many cancers, its poor permeability through biological membranes and several adverse effects limit its clinical benefits. BC and PEI were selected to stabilize GNPs and to load 5-FU through ionic interactions. METHODS 5-FU/BC-GNPs and 5-FU/PEI-GNPs were prepared at different 5-FU/ligand molar ratios and different pH values and were evaluated using different techniques. GNPs stability was tested as a function of salt concentration and storage time. 5-FU release from BC- and PEI-GNPs was evaluated as a function of solution pH. Ex vivo permeability studies of different 5-FU preparations were carried out using mice skin. RESULTS 5-FU-loaded GNPs size and surface charge were dependent on the 5-FU/ligand molar ratios. 5-FU entrapment efficiency and loading capacity were dependent on the used ligand, 5-FU/ligand molar ratio and solution pH. Maximum drug entrapment efficiency of 59.0 ± 1.7% and 46.0 ± 1.1% were obtained for 5-FU/BC-GNPs and 5-FU/PEI-GNPs, respectively. 5-FU-loaded GNPs had good stability against salinity and after storage for 4 months at room temperature and at 4 °C. In vitro 5-FU release was pH- and ligand-dependent where slower release was observed at higher pH and for 5-FU/BC-GNPs. 5-FU permeability through mice skin was significantly higher for drug-loaded GNPs compared with drug-ligand complex or drug aqueous solution. CONCLUSION Based on these results, BC- and PEI-GNPs might find applications as effective topical delivery systems of 5-FU.
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Affiliation(s)
- Mohamed A Safwat
- a Department of Pharmaceutics, Faculty of Pharmacy , Assiut University , Assiut , Egypt.,b Department of Pharmaceutics and Industrial Pharmacy , Deraya University , El-Minia , Egypt
| | - Ghareb M Soliman
- a Department of Pharmaceutics, Faculty of Pharmacy , Assiut University , Assiut , Egypt.,c Department of Pharmaceutics, Faculty of Pharmacy , University of Tabuk , Tabuk , Saudi Arabia
| | - Douaa Sayed
- d Department of Clinical Pathology, South Egypt Cancer Institute , Assiut University , Assiut , Egypt
| | - Mohamed A Attia
- a Department of Pharmaceutics, Faculty of Pharmacy , Assiut University , Assiut , Egypt
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14
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Oliveira MS, Goulart GCA, Ferreira LAM, Carneiro G. Hydrophobic ion pairing as a strategy to improve drug encapsulation into lipid nanocarriers for the cancer treatment. Expert Opin Drug Deliv 2016; 14:983-995. [DOI: 10.1080/17425247.2017.1266329] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Mariana Silva Oliveira
- Department of Pharmaceutics, Faculty of Pharmacy, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Gisele Castro Assis Goulart
- Department of Pharmaceutics, Faculty of Pharmacy, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Lucas Antônio Miranda Ferreira
- Department of Pharmaceutics, Faculty of Pharmacy, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Guilherme Carneiro
- Department of Pharmacy, Faculty of Biological and Health Sciences, Federal University of Jequitinhonha and Mucuri Valleys, Diamantina, MG, Brazil
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15
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Kaplan JA, Liu R, Freedman JD, Padera R, Schwartz J, Colson YL, Grinstaff MW. Prevention of lung cancer recurrence using cisplatin-loaded superhydrophobic nanofiber meshes. Biomaterials 2015; 76:273-81. [PMID: 26547283 DOI: 10.1016/j.biomaterials.2015.10.060] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2015] [Revised: 10/20/2015] [Accepted: 10/26/2015] [Indexed: 02/02/2023]
Abstract
For early stage lung cancer patients, local cancer recurrence after surgical resection is a significant concern and stems from microscopic disease left behind after surgery. Here we apply a local drug delivery strategy to combat local lung cancer recurrence after resection using non-woven, biodegradable nanofiber meshes loaded with cisplatin. The meshes are fabricated using a scalable electrospinning process from two biocompatible polymers--polycaprolactone and poly(glycerol monostearate-co-caprolactone)--to afford favorable mechanical properties for use in a dynamic tissue such as the lung. Owing to their rough nanostructure and hydrophobic polymer composition, these meshes exhibit superhydrophobicity, and it is this non-wetting nature that sustains the release of cisplatin in a linear fashion over ∼90 days, with anti-cancer efficacy demonstrated using an in vitro Lewis Lung carcinoma (LLC) cell assay. The in vivo evaluation of cisplatin-loaded superhydrophobic meshes in the prevention of local cancer recurrence in a murine model of LLC surgical resection demonstrated a statistically significant increase (p = 0.0006) in median recurrence-free survival to >23 days, compared to standard intraperitoneal cisplatin therapy of equivalent dose. These results emphasize the importance of supplementing cytoreductive surgery with local drug delivery strategies to improve prognosis for lung cancer patients undergoing tumor resection.
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Affiliation(s)
- Jonah A Kaplan
- Department of Biomedical Engineering, Boston University, 590 Commonwealth Ave., Boston, MA 02215, USA; Department of Chemistry, Boston University, 590 Commonwealth Ave., Boston, MA 02215, USA; Department of Medicine, Boston University, 590 Commonwealth Ave., Boston, MA 02215, USA
| | - Rong Liu
- Department of Surgery, Brigham and Women's Hospital, 75 Francis St., Boston, MA 02115, USA
| | - Jonathan D Freedman
- Department of Biomedical Engineering, Boston University, 590 Commonwealth Ave., Boston, MA 02215, USA; Department of Chemistry, Boston University, 590 Commonwealth Ave., Boston, MA 02215, USA; Department of Medicine, Boston University, 590 Commonwealth Ave., Boston, MA 02215, USA
| | - Robert Padera
- Department of Pathology, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, USA
| | - John Schwartz
- AcuityBio Corp., 200 Upland Rd., Newton, MA 02460, USA
| | - Yolonda L Colson
- Department of Surgery, Brigham and Women's Hospital, 75 Francis St., Boston, MA 02115, USA.
| | - Mark W Grinstaff
- Department of Biomedical Engineering, Boston University, 590 Commonwealth Ave., Boston, MA 02215, USA; Department of Chemistry, Boston University, 590 Commonwealth Ave., Boston, MA 02215, USA; Department of Medicine, Boston University, 590 Commonwealth Ave., Boston, MA 02215, USA.
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16
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Yilancioglu K, Weinstein ZB, Meydan C, Akhmetov A, Toprak I, Durmaz A, Iossifov I, Kazan H, Roth FP, Cokol M. Target-independent prediction of drug synergies using only drug lipophilicity. J Chem Inf Model 2014; 54:2286-93. [PMID: 25026390 PMCID: PMC4144720 DOI: 10.1021/ci500276x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
![]()
Physicochemical
properties of compounds have been instrumental
in selecting lead compounds with increased drug-likeness. However,
the relationship between physicochemical properties of constituent
drugs and the tendency to exhibit drug interaction has not been systematically
studied. We assembled physicochemical descriptors for a set of antifungal
compounds (“drugs”) previously examined for interaction.
Analyzing the relationship between molecular weight, lipophilicity,
H-bond donor, and H-bond acceptor values for drugs and their propensity
to show pairwise antifungal drug synergy, we found that combinations
of two lipophilic drugs had a greater tendency to show drug synergy.
We developed a more refined decision tree model that successfully
predicted drug synergy in stringent cross-validation tests based on
only lipophilicity of drugs. Our predictions achieved a precision
of 63% and allowed successful prediction for 58% of synergistic drug
pairs, suggesting that this phenomenon can extend our understanding
for a substantial fraction of synergistic drug interactions. We also
generated and analyzed a large-scale synergistic human toxicity network,
in which we observed that combinations of lipophilic compounds show
a tendency for increased toxicity. Thus, lipophilicity, a simple and
easily determined molecular descriptor, is a powerful predictor of
drug synergy. It is well established that lipophilic compounds (i)
are promiscuous, having many targets in the cell, and (ii) often penetrate
into the cell via the cellular membrane by passive diffusion. We discuss
the positive relationship between drug lipophilicity and drug synergy
in the context of potential drug synergy mechanisms.
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Affiliation(s)
- Kaan Yilancioglu
- Faculty of Engineering and Natural Sciences, Biological Sciences and Bioengineering Program, ⊥Faculty of Engineering and Natural Sciences, Computer Science and Engineering Program, and ▽Nanotechnology Research and Application Center, Sabanci University , Istanbul 34956, Turkey
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17
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Effect of sodium chloride on efficiency of cisplatinum dissolved in dimethyl sulfoxide: an in vitro study. Indian J Clin Biochem 2014; 29:242-5. [PMID: 24757310 DOI: 10.1007/s12291-013-0361-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2013] [Accepted: 06/30/2013] [Indexed: 10/26/2022]
Abstract
Cisplatinum (Cispt) is an anti-cancer drug with a low level of solubility. One of Cispt's solvents is dimethyl sulfoxide (DMSO) which can be substituted with chlorine of drug as Cispt's solvent. Applying such a solvent in biological studies is impossible due to intense reduction in activity. On the other hand, it is specified that Cispt's stability is increased in aqueous media by increasing sodium chloride (NaCl) concentration up to 0.9 %. Consequently, we intended to study the effect of DMSO on cytotoxicity of Cispt in presence of sodium. MTT assay was employed to study cytotoxicity effect of Cispt + NaCl + DMSO and Cispt + DMSO on G-292 cell line. Cytotoxicity in dilutions of 300 and 9 (p < 0.01) of Cispt in Cispt + NaCl + DMSO formulation was equal to 78 and 7 %. These values were estimated 79 and 18 % for Cispt + DMSO formulation and 79 and 24 % for free drug. IC50 values demonstrated reduction of 45 % in cytotoxicity of Cispt in Cispt + DMSO formulation. Studying chemical structure of Cispt and Cispt dissolved in DMSO showed that NaCl cannot inhibit inactivating effect of DMSO on Cispt and effect of this solvent on Cispt is independent from presence of NaCl. Results represented that using NaCl does not result in stability and keeping cytotoxicity properties of Cispt in DMSO. Findings suggest more studies for using DMSO as a solvent of Cispt.
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18
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Song IS, Choi MK, Shim WS, Shim CK. Transport of organic cationic drugs: effect of ion-pair formation with bile salts on the biliary excretion and pharmacokinetics. Pharmacol Ther 2013; 138:142-54. [PMID: 23353097 DOI: 10.1016/j.pharmthera.2013.01.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2013] [Accepted: 01/10/2013] [Indexed: 01/11/2023]
Abstract
More than 40% of clinically used drugs are organic cations (OCs), which are positively charged at a physiologic pH, and recent reports have established that these drugs are substrates of membrane transporters. The transport of OCs via membrane transporters may play important roles in gastrointestinal absorption, distribution to target sites, and biliary and/or renal elimination of various OC drugs. Almost 40 years ago, a molecular weight (Mw) threshold of 200 was reported to exist in rats for monoquaternary ammonium (mono QA) compounds to be substantially (e.g., >10% of iv dose) excreted to bile. It is well known that some OCs interact with appropriate endogenous organic anions in the body (e.g., bile salts) to form lipophilic ion-pair complexes. The ion-pair formation may influence the affinity or binding of OCs to membrane transporters that are relevant to biliary excretion. In that sense, the association of the ion-pair formation with the existence of the Mw threshold appears to be worthy of examination. It assumes the ion-pair formation of high Mw mono QA compounds (i.e., >200) in the presence of bile salts in the liver, followed by accelerated transport of the ion-pair complexes via relevant bile canalicular transporter(s). In this article, therefore, the transport of OC drugs will be reviewed with a special focus on the ion-pair formation hypothesis. Such information will deepen the understanding of the pharmacokinetics of OC drugs as well as the physiological roles of endogenous bile salts in the detoxification or phase II metabolism of high Mw QA drugs.
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Affiliation(s)
- I S Song
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 702-701, Republic of Korea
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19
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Bhattacharjee J, Verma G, Aswal VK, Patravale V, Hassan PA. Microstructure, drug binding and cytotoxicity of Pluronic P123–aerosol OT mixed micelles. RSC Adv 2013. [DOI: 10.1039/c3ra44983a] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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20
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Imbuluzqueta E, Lemaire S, Gamazo C, Elizondo E, Ventosa N, Veciana J, Van Bambeke F, Blanco-Prieto MJ. Cellular pharmacokinetics and intracellular activity against Listeria monocytogenes and Staphylococcus aureus of chemically modified and nanoencapsulated gentamicin. J Antimicrob Chemother 2012; 67:2158-64. [DOI: 10.1093/jac/dks172] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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21
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Hsiung LC, Chiang CL, Wang CH, Huang YH, Kuo CT, Cheng JY, Lin CH, Wu V, Chou HY, Jong DS, Lee H, Wo AM. Dielectrophoresis-based cellular microarray chip for anticancer drug screening in perfusion microenvironments. LAB ON A CHIP 2011; 11:2333-42. [PMID: 21629948 DOI: 10.1039/c1lc20147f] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
We present a dielectrophoresis (DEP)-based cellular microarray chip for cell-based anticancer drug screening in perfusion microenvironments. Human breast cancer cells, MCF7, were seeded into the chip and patterned via DEP forces onto the planar interdigitated ring electrode (PIRE) arrays. Roughly, only one third of the cell amount was required for the chip compared to that for a 96-well plate control. Drug concentrations (cisplatin or docetaxel) were stably generated by functional integration of a concentration gradient generator (CGG) and an anti-crosstalk valve (ACV) to treat cells for 24 hours. Cell viability was quantified using a dual staining method. Results of cell patterning show substantial uniformity of patterned cells (92 ± 5 cells per PIRE). Furthermore, after 24 hour drug perfusion, no statistical significance in dose-responses between the chip and the 96-well plate controls was found. The IC(50) value from the chip also concurred with the values from the literature. Moreover, the perfusion culture exhibited reproducibility of drug responses of cells on different PIREs in the same chamber. The chip would enable applications where cells are of limited supply, and supplement microfluidic perfusion cultures for clinical practices.
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Affiliation(s)
- Lo-Chang Hsiung
- Institute of Applied Mechanics, National Taiwan University, Taipei, Taiwan
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22
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Westendorf AF, Zerzankova L, Salassa L, Sadler PJ, Brabec V, Bednarski PJ. Influence of pyridine versus piperidine ligands on the chemical, DNA binding and cytotoxic properties of light activated trans,trans,trans-[Pt(N3)2(OH)2(NH3)(L)]. J Inorg Biochem 2011; 105:652-62. [DOI: 10.1016/j.jinorgbio.2011.01.003] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2010] [Revised: 01/03/2011] [Accepted: 01/07/2011] [Indexed: 12/21/2022]
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23
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Encapsulation of Protein-Polysaccharide HIP Complex in Polymeric Nanoparticles. JOURNAL OF DRUG DELIVERY 2011; 2011:458128. [PMID: 21603214 PMCID: PMC3095424 DOI: 10.1155/2011/458128] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2010] [Accepted: 02/18/2011] [Indexed: 12/04/2022]
Abstract
The objective of the present study is to formulate and characterize a nanoparticulate-based formulation of a macromolecule in a hydrophobic ion pairing (HIP) complex form. So far, HIP complexation approach has been studied only for proteins with molecular weight of 10–20 kDa. Hence, we have selected bovine serum albumin (BSA) having higher molecular weight (66.3 kDa) as a model protein and dextran sulphate (DS) as a complexing polymer to generate HIP complex. We have prepared and optimized the HIP complex formation process of BSA with DS. Ionic interactions between basic amino acids of BSA with sulphate groups of DS were confirmed by FTIR analysis. Further, nanoparticles were prepared and characterized with respect to size and surface morphology. We observed significant entrapment of BSA in nanoparticles prepared with minimal amounts of PLGA polymer. Finally, results of circular dichroism and intrinsic fluorescence assay have clearly indicated that HIP complexation and method of nanoparticle preparation did not alter the secondary and tertiary structures of BSA.
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24
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Ting VP, Schmidtmann M, Wilson CC, Weller MT. Cisplatin: Polymorphism and Structural Insights into an Important Chemotherapeutic Drug. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201003185] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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25
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Ting VP, Schmidtmann M, Wilson CC, Weller MT. Cisplatin: Polymorphism and Structural Insights into an Important Chemotherapeutic Drug. Angew Chem Int Ed Engl 2010; 49:9408-11. [DOI: 10.1002/anie.201003185] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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26
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Gaudana R, Parenky A, Vaishya R, Samanta SK, Mitra AK. Development and characterization of nanoparticulate formulation of a water soluble prodrug of dexamethasone by HIP complexation. J Microencapsul 2010; 28:10-20. [PMID: 20939702 DOI: 10.3109/02652048.2010.520093] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The objective of this study was to develop and characterize a nanoparticulate-based sustained release formulation of a water soluble dipeptide prodrug of dexamethasone, valine-valine-dexamethasone (VVD). Being hydrophilic in nature, it readily leaches out in the external aqueous medium and hence partitions poorly into the polymeric matrix resulting in minimal entrapment in nanoparticles. Hence, hydrophobic ion pairing (HIP) complexation of the prodrug was employed with dextran sulphate as a complexing polymer. A novel, solid in oil in water emulsion method was employed to encapsulate the prodrug in HIP complex form in poly(lactic-co-glycolic acid) matrix. Nanoparticles were characterized with respect to size, zeta potential, crystallinity of entrapped drug and surface morphology. A significant enhancement in the entrapment of the prodrug in nanoparticles was achieved. Finally, a simple yet novel method was developed which can also be applicable to encapsulate other charged hydrophilic molecules, such as peptides and proteins.
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Affiliation(s)
- Ripal Gaudana
- Division of Pharmaceutical Sciences, School of Pharmacy, University of Missouri-Kansas City, Kansas City, MO 64108-2718, USA
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27
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Gallarate M, Trotta M, Battaglia L, Chirio D. Cisplatin-loaded SLN produced by coacervation technique. J Drug Deliv Sci Technol 2010. [DOI: 10.1016/s1773-2247(10)50057-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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28
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Ferrari E, Grandi R, Lazzari S, Marverti G, Rossi MC, Saladini M. 1H, 13C, 195Pt NMR study on platinum(II) interaction with sulphur containing Amadori compounds. Polyhedron 2007. [DOI: 10.1016/j.poly.2007.05.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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