1
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Mosunov A, Evstigneev V, Buchelnikov A, Salo V, Prylutskyy Y, Evstigneev M. General up-scaled model of ligand binding with C60 fullerene clusters in aqueous solution. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2019.01.051] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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2
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Das I, Halder M. Interaction of Fluoroquinolones in Their Different Prototropic States with DNA: Diversity in the Nature of Binding and the Role of External Chemical Stimulus on Drug Displacement. ChemistrySelect 2019. [DOI: 10.1002/slct.201803336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Ishita Das
- Department of Chemistry; Indian Institute of Technology Kharagpur; Kharagpur- 721302 INDIA
| | - Mintu Halder
- Department of Chemistry; Indian Institute of Technology Kharagpur; Kharagpur- 721302 INDIA
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3
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Zai-Rose V, West SJ, Kramer WH, Bishop GR, Lewis EA, Correia JJ. Effects of Doxorubicin on the Liquid-Liquid Phase Change Properties of Elastin-Like Polypeptides. Biophys J 2018; 115:1431-1444. [PMID: 30292393 DOI: 10.1016/j.bpj.2018.09.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 07/23/2018] [Accepted: 09/05/2018] [Indexed: 01/03/2023] Open
Abstract
The lower critical solution temperature (LCST) of the thermo-responsive engineered elastin-like polypeptide (ELP) biopolymer is being exploited for the thermal targeted delivery of doxorubicin (Dox) to solid tumors. We examine the impact of Dox labeling on the thermodynamic and hydrodynamic behavior of an ELP drug carrier and how Dox influences the liquid-liquid phase separation (LLPS). Turbidity, dynamic light scattering (DLS), and differential scanning calorimetry measurements show that ELP undergoes a cooperative liquid-liquid phase separation from a soluble to insoluble coacervated state that is enhanced by Dox labeling. Circular dichroism measurements show that below the LCST ELP consists of both random coils and temperature-dependent β-turn structures. Labeling with Dox further enhances β-turn formation. DLS measurements reveal a significant increase in the hydrodynamic radius of ELP below the LCST consistent with weak self-association. Dox-labeled SynB1-ELP1 (Dox-ELP) has a significant increase in the hydrodynamic radius by DLS measurements that is consistent with stable oligomers and, at high Dox-ELP concentrations, micelle structures. Enhanced association by Dox-ELP is confirmed by sedimentation velocity analytical ultracentrifugation measurements. Both ELP self-association and the ELP inverse phase transition are entropically driven with positive changes in enthalpy and entropy. We show by turbidity and DLS that the ELP phase transition is monophasic, whereas mixtures of ELP and Dox-ELP are biphasic, with Dox-labeled ELP phase changing first and unlabeled ELP partitioning into the coacervate as the temperature is raised. DLS reveals a complex growth in droplet sizes consistent with coalescence and fusion of liquid droplets. Differential scanning calorimetry measurements show a -11 kcal/mol change in enthalpy for Dox-ELP coacervation relative to the unlabeled ELP, consistent with droplet formation being stabilized by favorable enthalpic interactions. We propose that the ELP phase change is initiated by ELP self-association, enhanced by increased Dox-ELP oligomer and micelle formation and stabilized by favorable enthalpic interactions in the liquid droplets.
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Affiliation(s)
- Valeria Zai-Rose
- Department of Cell and Molecular Biology, University of Mississippi Medical Center, Jackson, Mississippi
| | - Savannah J West
- Department of Chemistry, Mississippi State University, Starkville, Mississippi
| | - Wolfgang H Kramer
- Department of Chemistry and Biochemistry, Millsaps College, Jackson, Mississippi
| | - G Reid Bishop
- Department of Chemistry, Belhaven University, Jackson, Mississippi
| | - Edwin A Lewis
- Department of Chemistry, Mississippi State University, Starkville, Mississippi
| | - John J Correia
- Department of Cell and Molecular Biology, University of Mississippi Medical Center, Jackson, Mississippi.
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4
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Enache M, Toader AM. Insights Into Molecular Interaction of Antitumor Drug Mitoxantrone With Anionic Surfactant Sodium Dodecyl Sulfate at Different Temperatures. J SURFACTANTS DETERG 2018. [DOI: 10.1002/jsde.12014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Mirela Enache
- Institute of Physical Chemistry “Ilie Murgulescu,” Romanian Academy, Splaiul Independentei 202; Bucharest 060021 Romania
| | - Ana Maria Toader
- Institute of Physical Chemistry “Ilie Murgulescu,” Romanian Academy, Splaiul Independentei 202; Bucharest 060021 Romania
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5
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Nanotechnology and nanocarrier-based approaches on treatment of degenerative diseases. INTERNATIONAL NANO LETTERS 2017. [DOI: 10.1007/s40089-017-0208-0] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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6
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Kalel R, Mora AK, Patro BS, Palit DK, Nath S. Synergistic enhancement in the drug sequestration power and reduction in the cytotoxicity of surfactants. Phys Chem Chem Phys 2017; 19:25446-25455. [DOI: 10.1039/c7cp05042a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Surfactants in supramolecular assemblies show a significant increase in their drug sequestration power with a remarkably reduced cytotoxicity.
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Affiliation(s)
- Rahul Kalel
- Radiation & Photochemistry Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
| | - Aruna K. Mora
- Radiation & Photochemistry Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
- Homi Bhabha National Institute
| | - Birija S. Patro
- Homi Bhabha National Institute
- Training School Complex
- Anushaktinagar
- Mumbai 400094
- India
| | - Dipak K. Palit
- Radiation & Photochemistry Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
- Homi Bhabha National Institute
| | - Sukhendu Nath
- Radiation & Photochemistry Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
- Homi Bhabha National Institute
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7
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Mitoxantrone-Surfactant Interactions: A Physicochemical Overview. Molecules 2016; 21:molecules21101356. [PMID: 27754390 PMCID: PMC6273455 DOI: 10.3390/molecules21101356] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 09/29/2016] [Accepted: 10/01/2016] [Indexed: 11/17/2022] Open
Abstract
Mitoxantrone is a synthetic anticancer drug used clinically in the treatment of different types of cancer. It was developed as a doxorubicin analogue in a program to find drugs with improved antitumor activity and decreased cardiotoxicity compared with the anthracyclines. As the cell membrane is the first barrier encountered by anticancer drugs before reaching the DNA sites inside the cells and as surfactant micelles are known as simple model systems for biological membranes, the drugs-surfactant interaction has been the subject of great research interest. Further, quantitative understanding of the interactions of drugs with biomimicking structures like surfactant micelles may provide helpful information for the control of physicochemical properties and bioactivities of encapsulated drugs in order to design better delivery systems with possible biomedical applications. The present review describes the physicochemical aspects of the interactions between the anticancer drug mitoxantrone and different surfactants. Mitoxantrone-micelle binding constants, partitions coefficient of the drug between aqueous and micellar phases and the corresponding Gibbs free energy for the above processes, and the probable location of drug molecules in the micelles are discussed.
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8
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Mora AK, Singh PK, Nath S. Controlled Sequestration of DNA Intercalated Drug by Polymer–Surfactant Supramolecular Assemblies. J Phys Chem B 2016; 120:4143-51. [DOI: 10.1021/acs.jpcb.5b12689] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Aruna K. Mora
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
| | - Prabhat K. Singh
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
| | - Sukhendu Nath
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
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9
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Das A, Adhikari C, Nayak D, Chakraborty A. First Evidence of the Liposome-Mediated Deintercalation of Anticancer Drug Doxorubicin from the Drug-DNA Complex: A Spectroscopic Approach. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:159-70. [PMID: 26605667 DOI: 10.1021/acs.langmuir.5b03702] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Biocompatible liposomes were used for the first time to study the deintercalation process of a prominent anticancer drug, doxorubicin (DOX), from doxorubicin-intercalated DNA (DOX-DNA complex) under controlled experimental conditions. The study revealed that anionic liposomes (DMPG liposomes) appeared to be the most effective to bring in the highest percentage of drug release while cationic liposomes (DOTAP liposomes) scored the lowest percentage of release. The drug release was primarily attributed to the electrostatic interaction between liposomes and drug molecules. Apart from this interaction, changes in the hydrophobicity of the medium upon addition of liposomes to the DNA-drug solution accompanied by lipoplex formation between DNA and liposomes were also attributed to the observed deintercalation. The CD and the time-resolved rotational relaxation studies confirmed that lipoplex formation took place between liposomes and DNA owing to electrostatic interaction. The confocal study revealed that in the postrelease period, DOX binds with liposomes. The reason behind the binding is electrostatic interaction as well as the unique bilayer structure of liposomes which helps it to act as a "hydrophobic sink" for DOX. The study overall highlighted a novel strategy for deintercalation of drug using biocompatible liposomes, as the release of the drug can be controlled over a period of time by varying the concentration and composition of the liposomes.
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Affiliation(s)
- Anupam Das
- Discipline of Chemistry, Indian Institute of Technology Indore , Indore, Madhya Pradesh, India
| | - Chandan Adhikari
- Discipline of Chemistry, Indian Institute of Technology Indore , Indore, Madhya Pradesh, India
| | - Debasis Nayak
- Bioseciences and Biomedical Engineering, Indian Institute of Technology Indore , Indore, Madhya Pradesh, India
| | - Anjan Chakraborty
- Discipline of Chemistry, Indian Institute of Technology Indore , Indore, Madhya Pradesh, India
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Patra A, Hazra S, Samanta N, Suresh Kumar G, Mitra RK. Micelle induced dissociation of DNA–ligand complexes: The effect of ligand binding specificity. Int J Biol Macromol 2016; 82:418-24. [DOI: 10.1016/j.ijbiomac.2015.11.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 10/19/2015] [Accepted: 11/05/2015] [Indexed: 11/16/2022]
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11
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Paul BK, Ghosh N, Mukherjee S. Direct insight into the nonclassical hydrophobic effect in bile salt:β-cyclodextrin interaction: role of hydrophobicity in governing the prototropism of a biological photosensitizer. RSC Adv 2016. [DOI: 10.1039/c5ra27050b] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The interaction of norharmane with bile salts is reported along with the evidence for nonclassical hydrophobic effect in bile salt:β-cyclodextrin interaction.
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Affiliation(s)
- Bijan K. Paul
- Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- Bhopal 462066
- India
| | - Narayani Ghosh
- Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- Bhopal 462066
- India
| | - Saptarshi Mukherjee
- Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- Bhopal 462066
- India
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12
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Enache M, Ionescu S, Volanschi E. Studies on the anticancer drug mitoxantrone–DNA–sodium dodecyl sulfate system. J Mol Liq 2015. [DOI: 10.1016/j.molliq.2015.05.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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13
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Ghosh S, Banik D, Roy A, Kundu N, Kuchlyan J, Sarkar N. Spectroscopic investigation of the binding interactions of a membrane potential molecule in various supramolecular confined environments: contrasting behavior of surfactant molecules in relocation or release of the probe between nanocarriers and DNA surface. Phys Chem Chem Phys 2014; 16:25024-38. [DOI: 10.1039/c4cp03178d] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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14
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Sugawara K, Kadoya T, Kuramitz H. Electrochemical sensing of concanavalin A using a non-ionic surfactant with a maltose moiety. Anal Chim Acta 2014; 814:55-62. [PMID: 24528844 DOI: 10.1016/j.aca.2014.01.031] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2013] [Revised: 01/08/2014] [Accepted: 01/09/2014] [Indexed: 11/26/2022]
Abstract
To electrochemically detect concanavalin A (ConA), a new method was developed using mixed micelles between a non-ionic surfactant with a maltose moiety and electroactive daunomycin. The surfactants, in which the length of the alkyl chain was different, were n-decyl-β-D-maltoside, n-dodecyl-β-D-maltoside, and n-tetradecyl-β-D-maltoside. The measurement principle was due to the micelle breakdown caused by the binding between the ConA and maltose moieties. When ConA was combined with maltose moieties at a concentration of surfactant that was near the critical micelle concentration, the daunomycin that formed the micelles was moved to a solution from the micelles. As a result, the peak current of daunomycin increased as the concentration of ConA was increased. The mechanism was proposed using voltammetry, spectrometry, and gel filtration. The linear range using n-tetradecyl-β-D-maltoside was 2.0×10(-9) to 8.0×10(-8) M of ConA, and it was the most sensitive in the presence of the three surfactants. To examine whether selective binding took place, measurements with several proteins were carried out. The electrode responses of daunomycin were not influenced by the presence of 5.0×10(-6) M protein. Furthermore, this method could be applied to the determination of ConA in a serum, and to the measurement of sugar chains that can be combined with ConA on the cell surface.
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Affiliation(s)
| | - Toshihiko Kadoya
- Maebashi Institute of Technology, 371-0816 Maebashi, Gunma, Japan
| | - Hideki Kuramitz
- Department of Environmental Biology and Chemistry, Graduate School of Science and Engineering for Research, University of Toyama, Toyama 930-8555, Japan
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15
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Patra A, Hazra S, Suresh Kumar G, Mitra RK. Entropy Contribution toward Micelle-Driven Deintercalation of Drug–DNA Complex. J Phys Chem B 2014; 118:901-8. [DOI: 10.1021/jp4091816] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Animesh Patra
- Unit for Nano Science & Technology Department of Chemical Biological and Macromolecular Sciences S.N. Bose National Centre for Basic Sciences Block JD, Sector III, Salt Lake, Kolkata 700098, INDIA
| | - Soumitra Hazra
- Biophysical
Chemistry Laboratory Chemistry Division CSIR- Indian Institute of Chemical Biology 4, Raja S.C. Mullick Road, Kolkata 700032, INDIA
| | - Gopinatha Suresh Kumar
- Biophysical
Chemistry Laboratory Chemistry Division CSIR- Indian Institute of Chemical Biology 4, Raja S.C. Mullick Road, Kolkata 700032, INDIA
| | - Rajib Kumar Mitra
- Unit for Nano Science & Technology Department of Chemical Biological and Macromolecular Sciences S.N. Bose National Centre for Basic Sciences Block JD, Sector III, Salt Lake, Kolkata 700098, INDIA
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16
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Evstigneev MP, Buchelnikov AS, Voronin DP, Rubin YV, Belous LF, Prylutskyy YI, Ritter U. Complexation of C60 fullerene with aromatic drugs. Chemphyschem 2013; 14:568-78. [PMID: 23345058 DOI: 10.1002/cphc.201200938] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2012] [Revised: 12/11/2012] [Indexed: 12/13/2022]
Abstract
The contributions of various physical factors to the energetics of complexation of aromatic drug molecules with C(60) fullerene are investigated in terms of the calculated magnitudes of equilibrium complexation constants and the components of the net Gibbs free energy. Models of complexation are developed taking into account the polydisperse nature of fullerene solutions in terms of the continuous or discrete (fractal) aggregation of C(60) molecules. Analysis of the energetics has shown that stabilization of the ligand-fullerene complexes in aqueous solution is mainly determined by intermolecular van der Waals interactions and, to lesser extent, by hydrophobic interactions. The results provide a physicochemical basis for a potentially new biotechnological application of fullerenes as modulators of biological activity of aromatic drugs.
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Affiliation(s)
- Maxim P Evstigneev
- Department of Physics, Sevastopol National Technical University, Sevastopol 99053, Crimea, Ukraine.
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17
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Dai Y, Yang D, Ma P, Kang X, Zhang X, Li C, Hou Z, Cheng Z, Lin J. Doxorubicin conjugated NaYF(4):Yb(3+)/Tm(3+) nanoparticles for therapy and sensing of drug delivery by luminescence resonance energy transfer. Biomaterials 2012; 33:8704-13. [PMID: 22938822 DOI: 10.1016/j.biomaterials.2012.08.029] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2012] [Accepted: 08/13/2012] [Indexed: 10/27/2022]
Abstract
In this study, we report an anticancer drug delivery system based on doxorubicin (DOX)-conjugated NaYF(4):Yb(3+)/Tm(3+) nanoparticles. The as-synthesized nanoparticles consist of uniform spherical nanoparticles with an average diameter of 25 nm. The drug delivery system demonstrates the ability to release DOX by cleavage of the hydrazone bond in mildly acidic environments. The spectra overlap between emission of donor NaYF(4):Yb(3+)/Tm(3+) nanoparticles at 452 nm ((1)D(2)→(3)F(4)) and 477 nm ((1)G(4)→(3)H(6)) and the broad absorbance of acceptor DOX centered at around 480 nm enables energy transfer to occur between the nanoparticles and DOX. The quenching and recovery of the up-conversion luminescence of NaYF(4):Yb(3+)/Tm(3+) by DOX due to luminescence resonance energy transfer (LRET) mechanism are applied as optical probe to confirm the DOX conjunction and monitor the release of DOX. The DOX-conjugated NaYF(4):Yb(3+)/Tm(3+) nanoparticles exhibit an obvious cytotoxic effect on SKOV3 ovarian cancer cells via MTT assay. Meanwhile, the endocytosis process of DOX-conjugated NaYF(4):Yb(3+)/Tm(3+) nanoparticles by SKVO3 cells was demonstrated through confocal laser scanning microscopy (CLSM), flow cytometry and ICP-OES. Such drug delivery system, which combines pH-triggered drug-release and up-converting nanoparticles-based LRET property, has excellent potential applications in cancer therapy and smart imaging.
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Affiliation(s)
- Yunlu Dai
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
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18
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Rana DK, Dhar S, Sarkar A, Bhattacharya SC. Dual Intramolecular Hydrogen Bond as a Switch for Inducing Ground and Excited State Intramolecular Double Proton Transfer in Doxorubicin: An Excitation Wavelength Dependence Study. J Phys Chem A 2011; 115:9169-79. [DOI: 10.1021/jp204165j] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Dipak Kumar Rana
- Department of Chemistry, Jadavpur University, Kolkata−700032, India
| | - Sayaree Dhar
- Department of Chemistry, Jadavpur University, Kolkata−700032, India
| | - Arindam Sarkar
- Department of Chemistry, Jadavpur University, Kolkata−700032, India
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19
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Lin PH, Kao YH, Chang Y, Cheng YC, Chien CC, Chen WY. Daunomycin interaction with DNA: microcalorimetric studies of the thermodynamics and binding mechanism. Biotechnol J 2011; 5:1069-77. [PMID: 20815085 DOI: 10.1002/biot.201000212] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Nucleic acids are an important target for many therapeutics. Small molecules that bind to nucleic acids are important in many aspects of medicines, particularly in cancer chemotherapy. In recent years, many studies have utilized polynucleic acids with various sequences to demonstrate the binding mechanism of daunomycin, a potent anticancer drug. This study describes that isothermal titration calorimetry is a useful tool for studying the fundamental binding mechanism systemically. The results suggest that the binding free energy is more favorable when the temperature is increased. The binding entropy contributes to this effect. Furthermore, the amine group on daunomycin contributes electrostatic interaction that induces the binding process. In addition, enthalpy-entropy compensation is also exhibited in the daunomycin-DNA binding mechanism. This study used an easy, convenient method of performing a systemic study in a recognition system. The results from this study provide additional information about microscopic mechanisms for molecular design and molecular recognition.
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Affiliation(s)
- Po-Hsun Lin
- Institute of Systems Biology and Bioinformatics, National Central University, Jhong-Li, Taiwan
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20
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Substituent effect on the emission behavior of thiazolidinedione derivatives in cationic and anionic micellar media. J Colloid Interface Sci 2009; 329:160-6. [DOI: 10.1016/j.jcis.2008.09.046] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2008] [Revised: 09/15/2008] [Accepted: 09/15/2008] [Indexed: 11/22/2022]
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21
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Bjelić S, Jelesarov I. A survey of the year 2007 literature on applications of isothermal titration calorimetry. J Mol Recognit 2008; 21:289-312. [PMID: 18729242 DOI: 10.1002/jmr.909] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Elucidation of the energetic principles of binding affinity and specificity is a central task in many branches of current sciences: biology, medicine, pharmacology, chemistry, material sciences, etc. In biomedical research, integral approaches combining structural information with in-solution biophysical data have proved to be a powerful way toward understanding the physical basis of vital cellular phenomena. Isothermal titration calorimetry (ITC) is a valuable experimental tool facilitating quantification of the thermodynamic parameters that characterize recognition processes involving biomacromolecules. The method provides access to all relevant thermodynamic information by performing a few experiments. In particular, ITC experiments allow to by-pass tedious and (rarely precise) procedures aimed at determining the changes in enthalpy and entropy upon binding by van't Hoff analysis. Notwithstanding limitations, ITC has now the reputation of being the "gold standard" and ITC data are widely used to validate theoretical predictions of thermodynamic parameters, as well as to benchmark the results of novel binding assays. In this paper, we discuss several publications from 2007 reporting ITC results. The focus is on applications in biologically oriented fields. We do not intend a comprehensive coverage of all newly accumulated information. Rather, we emphasize work which has captured our attention with originality and far-reaching analysis, or else has provided ideas for expanding the potential of the method.
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Affiliation(s)
- Sasa Bjelić
- Biochemisches Institut der Universität Zürich, Winterthurerstrasse 190, Zürich, Switzerland
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22
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Yu H, Ren J, Chaires JB, Qu X. Hydration of drug-DNA complexes: greater water uptake for adriamycin compared to daunomycin. J Med Chem 2008; 51:5909-11. [PMID: 18788722 PMCID: PMC2663378 DOI: 10.1021/jm800826y] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Water is an integral part of DNA, and the conserved water molecules at the binding sites can modulate drug binding to DNA or protein. We report here that anthracycline antitumor antibiotics, adriamycin (AM) and daunomycin (DM), binding to DNA is accompanied by different hydration changes, with AM binding resulting in the uptake of about twice as many water molecules as DM. These results indicate that water is playing an important role in drug binding to DNA.
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Affiliation(s)
- Haijia Yu
- Division of Biological Inorganic Chemistry, Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Graduate School of the Chinese Academy of Sciences, Chinese Academy of Sciences, Changchun, Jilin 130022, China
| | - Jinsong Ren
- Division of Biological Inorganic Chemistry, Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Graduate School of the Chinese Academy of Sciences, Chinese Academy of Sciences, Changchun, Jilin 130022, China
| | - Jonathan B. Chaires
- James Graham Brown Cancer Center, University of Louisville, 529 S. Jackson St., Louisville, KY 40202
| | - Xiaogang Qu
- Division of Biological Inorganic Chemistry, Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Graduate School of the Chinese Academy of Sciences, Chinese Academy of Sciences, Changchun, Jilin 130022, China
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