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Shimray SA, Ningthoujam A, Khaidem DKS, Chipem FAS. Theoretical studies on the photo protective mechanism of curcuminoids. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 305:123449. [PMID: 37774584 DOI: 10.1016/j.saa.2023.123449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 09/16/2023] [Accepted: 09/20/2023] [Indexed: 10/01/2023]
Abstract
In this work, the deactivation pathways of curcuminoids after photoexcitation was studied by employing density functional theory to explore their UVA radiation screening capacity. A comprehensive computational characterization of the excited-state processes of curcumin, demethoxycurcumin, and bis-demethoxycurcumin was done. The molecules exist in diketo and enol forms which are in equilibrium and interconvertible through keto-enol tautomerism. The enolic forms of each of the studied molecules have eight geometric cis-trans isomers as a result of torsion rotation about three different carbon-carbon double bonds across the aliphatic chain. For each geometric isomer, sixteen possible rotamers are found to exist due to rotation about five different carbon-carbon single bond rotations, also across the skeleton of the aliphatic chain. Upon photoexcitation, the studied molecules follow three main pathways of radiationless decay: (a) rotamerism and interconversion between rotamers of comparable energies which are in equilibrium, (b) interconversion between the cis-trans geometrical isomers where an efficient vibrational relaxation path is formed at ∼90° during torsion rotation about carbon-carbon double bond, and (c) excited state intramolecular proton transfer in a single O-H stretching vibration through a cyclic intramolecular hydrogen bonded ring formed at the centre of the molecule giving back the original structure. The absorption and emission spectra of the molecules were also simulated where the theoretically obtained absorption and emission maxima are close to the reported experimental values.
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Affiliation(s)
- Sophy A Shimray
- Department of Chemistry, Manipur University, Canchipur 795 003, India
| | - Amar Ningthoujam
- Department of Chemistry, Manipur University, Canchipur 795 003, India
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Al-Roumy AM, Al-Saymari FA, Sultan HA, Hassan QMA, Elias RS, Alsalim TA, Saeed BA, Emshary CA, Mahdi MA. Nonlinear Optical Properties and All Optical Switching of Curcumin Derivatives. J Fluoresc 2024; 34:283-303. [PMID: 37209224 DOI: 10.1007/s10895-023-03257-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 05/02/2023] [Indexed: 05/22/2023]
Abstract
In this work OR1(E1,6E) -1,7-bis (4-propyloxy phenyl) hepta-1,6-diene-3,5 dione compound is synthesized. The compound has been characterized via computational technique by studying the molecule's electronic structures through calculating its HOMO and LUMO energies, and its band gap energy (EHOMO-ELUMO). The nonlinear refractive index (NLRI) of the solution of OR1 compound in DMF solvent is determined using diffraction patterns (DPs) which resulted when a continuous wave laser beam of wavelength 473 nm traversed the compound solution in a glass cell of 1 mm thickness. By counting the number of rings under maximum beam input power, the NLRI of value 10- 6 cm2/W resulted. The NLRI is calculated once more via the Z-scan technique and a value of 0.25 × 10- 7 cm2/W is obtained. The vertical convection current in the OR1 compound solution appears to be responsible for the asymmetries noticed in the DPs. The temporal variation of each DP is noticed together with the evolution of DPs against beam input power. DPs are numerically simulated based on the Fresnel-Kirchhoff integral with good accord compared to the experimental findings. Dynamic and static all-optical switching in the OR1 compound using two laser beams (473 and 532 nm) is tested successfully.
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Affiliation(s)
- Alaa M Al-Roumy
- Department of Physics, College of Education for Pure Sciences, University of Basrah, Basrah, 61001, Iraq
| | - F A Al-Saymari
- Department of Physics, College of Education for Pure Sciences, University of Basrah, Basrah, 61001, Iraq
| | - H A Sultan
- Department of Physics, College of Education for Pure Sciences, University of Basrah, Basrah, 61001, Iraq
| | - Qusay M A Hassan
- Department of Physics, College of Education for Pure Sciences, University of Basrah, Basrah, 61001, Iraq.
| | - Rita S Elias
- College of Pharmacy, University of Basrah, Basrah, 61001, Iraq
| | - Tahseen A Alsalim
- Department of Chemistry, College of Education for Pure Sciences, University of Basrah, Basrah, 61001, Iraq
| | - Bahjat A Saeed
- Department of Chemistry, College of Education for Pure Sciences, University of Basrah, Basrah, 61001, Iraq
| | - C A Emshary
- Department of Physics, College of Education for Pure Sciences, University of Basrah, Basrah, 61001, Iraq
| | - M A Mahdi
- Department of Physics, College of Science, University of Basrah, Basrah, 61001, Iraq
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Bera N, Layek S, Pramanik S, Nandi PK, Hazra R, Sarkar N. Ultrafast Dynamics of the Medicinal Pigment Curcumin inside the Imidazolium Surface Active Ionic Liquid Containing Giant Vesicles and White Light Generation via Triple-FRET Technique. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:11653-11663. [PMID: 37564012 DOI: 10.1021/acs.langmuir.3c01233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/12/2023]
Abstract
The naturally occurring yellow polyphenolic medicinal pigment curcumin shows ultrafast dynamics in the excited states. These ultrafast dynamics are strongly influenced by the rigidity of the environments of the systems. The present investigation unveils the ultrafast excited-state intramolecular hydrogen atom transfer (ESIHT) (which is involved in the antioxidant mechanism) and the solvation dynamics of curcumin inside the imidazolium surface active ionic liquid (SAIL), 1-hexadecyl-3-methylimidazolium chloride ([C16mim]Cl) micelle, and giant vesicles after introducing sorbitan monoesters (Span 20 and Span 80) in the aqueous medium. Interestingly, the short hydrocarbon chain containing Span 20 forms smaller, less rigid vesicles, and the long hydrocarbon chain containing Span 80 forms larger, more rigid giant vesicles after being assembled with [C16mim]Cl. The ESIHT and the solvation dynamics are slower in Span 80, containing rigid vesicles, than that in Span 20, comprising less rigid vesicles. Finally, we have established a three-component fluorescence resonance energy transfer (Triple-FRET) system to generate white light (WL) in the micelle and giant vesicles. Here the hydrophobic dye 1,6-diphenyl-1,3,5-hexatriene (DPH) acts as the donor, and the hydrophilic anticancer drug doxorubicin hydrochloride (DOX) serves as the acceptor along with the intermediate donor, curcumin. At a specific combination of the concentrations of these dyes in a particular self-assembled system, WL is generated due to the triple-FRET phenomena.
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Affiliation(s)
- Nanigopal Bera
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Souvik Layek
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Shashwata Pramanik
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Pratyush Kiran Nandi
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Ritwik Hazra
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Nilmoni Sarkar
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
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Maspero A, Vavassori F, Nardo L, Vesco G, Vitillo JG, Penoni A. Synthesis, Characterization, Fluorescence Properties, and DFT Modeling of Difluoroboron Biindolediketonates. Molecules 2023; 28:4688. [PMID: 37375243 DOI: 10.3390/molecules28124688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 06/02/2023] [Accepted: 06/07/2023] [Indexed: 06/29/2023] Open
Abstract
We report a simple and efficient strategy to enhance the fluorescence of biocompatible biindole diketonates (bdks) in the visible spectrum through difluoroboronation (BF2bdks complexes). Emission spectroscopy testifies an increase in the fluorescence quantum yields from a few percent to as much as >0.7. This massive increment is essentially independent of substitutions at the indole (-H, -Cl, and -OCH3) and corresponds to a significant stabilization of the excited state with respect to non-radiative decay mechanisms: the non-radiative decay rates are reduced by as much as an order of magnitude, from 109 s-1 to 108 s-1, upon difluoroboronation. The stabilization of the excited state is large enough to enable sizeable 1O2 photosensitized production. Different time-dependent (TD) density functional theory (DFT) methods were assessed in their ability to model the electronic properties of the compounds, with TD-B3LYP-D3 providing the most accurate excitation energies. The calculations associate the first active optical transition in both the bdks and BF2bdks electronic spectra to the S0 → S1 transition, corresponding to a shift in the electronic density from the indoles to the oxygens or the O-BF2-O unit, respectively.
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Affiliation(s)
- Angelo Maspero
- Department of Science and High Technology and INSTM, University of Insubria, Via Valleggio 9, 22100 Como, Italy
| | - Federico Vavassori
- Department of Science and High Technology and INSTM, University of Insubria, Via Valleggio 9, 22100 Como, Italy
| | - Luca Nardo
- Department of Science and High Technology and INSTM, University of Insubria, Via Valleggio 9, 22100 Como, Italy
| | - Guglielmo Vesco
- Department of Science and High Technology and INSTM, University of Insubria, Via Valleggio 9, 22100 Como, Italy
| | - Jenny G Vitillo
- Department of Science and High Technology and INSTM, University of Insubria, Via Valleggio 9, 22100 Como, Italy
| | - Andrea Penoni
- Department of Science and High Technology and INSTM, University of Insubria, Via Valleggio 9, 22100 Como, Italy
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de Melo NJ, Tovar JSD, Dovigo LN, Dias LD, Bagnato VS, Inada NM. Natural versus synthetic curcuminoids as photosensitizers: photobleaching and antimicrobial photodynamic therapy evaluation. Photodiagnosis Photodyn Ther 2023; 42:103495. [PMID: 36940789 DOI: 10.1016/j.pdpdt.2023.103495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 03/01/2023] [Accepted: 03/01/2023] [Indexed: 03/23/2023]
Abstract
Antimicrobial photodynamic therapy (aPDT) has been studied as an alternative to combat bacterial resistance to the commonly used antibiotics. aPDT requires the use of a photosensitizer and curcumin is one of the more promising, though the usage of natural curcumin can be inconsistent in certain biomedical uses due to differences in soil condition and turmeric age, besides a large quantity of the plant is necessary to obtain useful amounts of the actual molecule. As such, a synthetic analogue is preferred as it is pure, and its components are better characterized. The present work studied photophysical differences in both natural and synthetic curcumin using photobleaching experiments and searched for whether differences existed in aPDT studies against Staphylococcus aureus. The results showed a faster O2 consumption and a singlet oxygen's generation rate lower by the synthetic curcumin, in comparison with the natural derivative. However, no statistical difference was observed when inactivating S. aureus and these results were following a concentration-based pattern. Thus, the use of synthetic curcumin is indicated, as it can be obtained in controlled amounts and with less environmental impact. Although there are small changes in a photophysical context comparing natural versus synthetic curcumins, we did not observe statistical differences in the photoinactivation of S.aureus bacteria, and reproducibility in biomedical contexts is better achieved with the synthetic analogue.
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Affiliation(s)
- Nicolas Junhiti de Melo
- University of São Paulo, São Carlos Institute of Physics, Group of Optics, São Carlos, SP, Brazil
| | - Johan S D Tovar
- University of São Paulo, São Carlos Institute of Physics, Group of Optics, São Carlos, SP, Brazil
| | - Lívia Nordi Dovigo
- Univ Estadual Paulista, Araraquara Dental School, Department of Social Dentistry, Araraquara, SP, Brazil
| | - Lucas D Dias
- University of São Paulo, São Carlos Institute of Physics, Group of Optics, São Carlos, SP, Brazil
| | - Vanderlei Salvador Bagnato
- University of São Paulo, São Carlos Institute of Physics, Group of Optics, São Carlos, SP, Brazil; Hagler Institute for Advanced Studies, Texas A&M University, College Station, Texas, United States of America
| | - Natalia Mayumi Inada
- University of São Paulo, São Carlos Institute of Physics, Group of Optics, São Carlos, SP, Brazil.
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Vesco G, Brambati M, Scapinello L, Penoni A, Mella M, Masson M, Gaware V, Maspero A, Nardo L. Asymmetric Phenyl Substitution: An Effective Strategy to Enhance the Photosensitizing Potential of Curcuminoids. Pharmaceuticals (Basel) 2022; 15:843. [PMID: 35890142 PMCID: PMC9321223 DOI: 10.3390/ph15070843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/01/2022] [Accepted: 07/06/2022] [Indexed: 11/16/2022] Open
Abstract
Curcumin has been demonstrated to exhibit photosensitized bactericidal activity. However, the full exploitation of curcumin as a photo-pharmaceutical active principle is hindered by fast deactivation of the excited state through the transfer of the enol proton to the keto oxygen. Introducing an asymmetry in the molecular structure through acting on the phenyl substituents is expected to be a valuable strategy to impair this undesired de-excitation mechanism competing with the therapeutically relevant ones. In this study, two asymmetric curcumin analogs were synthesized and characterized as to their electronic-state transition spectroscopic properties. Fluorescence decay distributions were also reconstructed. Their analysis confirmed the substantial stabilization of the fluorescent state with respect to the parent compound. Nuclear magnetic resonance experiments were performed with the aim of determining the structural features of the keto-enol ring and the strength of the keto-enol hydrogen bond. Electronic structure calculations were also undertaken to elucidate the effects of substitution on the features of the keto-enol semi-aromatic system and the proneness to proton transfer. Finally, their singlet oxygen-generation efficiency was compared to that of curcumin through the 9,10-dimethylanthracene fluorescent assay.
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Affiliation(s)
- Guglielmo Vesco
- Department of Science and High Technology, Università degli Studi dell’Insubria, Via Valleggio 11, 22100 Como, Italy; (G.V.); (M.B.); (L.S.); (A.P.); (M.M.)
| | - Martino Brambati
- Department of Science and High Technology, Università degli Studi dell’Insubria, Via Valleggio 11, 22100 Como, Italy; (G.V.); (M.B.); (L.S.); (A.P.); (M.M.)
| | - Luca Scapinello
- Department of Science and High Technology, Università degli Studi dell’Insubria, Via Valleggio 11, 22100 Como, Italy; (G.V.); (M.B.); (L.S.); (A.P.); (M.M.)
| | - Andrea Penoni
- Department of Science and High Technology, Università degli Studi dell’Insubria, Via Valleggio 11, 22100 Como, Italy; (G.V.); (M.B.); (L.S.); (A.P.); (M.M.)
| | - Massimo Mella
- Department of Science and High Technology, Università degli Studi dell’Insubria, Via Valleggio 11, 22100 Como, Italy; (G.V.); (M.B.); (L.S.); (A.P.); (M.M.)
| | - Màr Masson
- School of Health Sciences, University of Iceland, Saemundargata 2, 102 Reykjavìk, Iceland; (M.M.); (V.G.)
| | - Vivek Gaware
- School of Health Sciences, University of Iceland, Saemundargata 2, 102 Reykjavìk, Iceland; (M.M.); (V.G.)
| | - Angelo Maspero
- Department of Science and High Technology, Università degli Studi dell’Insubria, Via Valleggio 11, 22100 Como, Italy; (G.V.); (M.B.); (L.S.); (A.P.); (M.M.)
| | - Luca Nardo
- Department of Science and High Technology, Università degli Studi dell’Insubria, Via Valleggio 11, 22100 Como, Italy; (G.V.); (M.B.); (L.S.); (A.P.); (M.M.)
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Intramolecular Charge Transfer of Curcumin and Solvation Dynamics of DMSO Probed by Time-Resolved Raman Spectroscopy. Int J Mol Sci 2022; 23:ijms23031727. [PMID: 35163647 PMCID: PMC8835799 DOI: 10.3390/ijms23031727] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 01/25/2022] [Accepted: 01/31/2022] [Indexed: 02/04/2023] Open
Abstract
Intramolecular charge transfer (ICT) of curcumin in dimethyl sulfoxide (DMSO) solution in the excited state was investigated by femtosecond electronic and vibrational spectroscopy. Excited-state Raman spectra of curcumin in the locally-excited and charge-transferred (CT) state of the S1 excited state were separated due to high temporal (<50 fs) and spectral (<10 cm−1) resolutions of femtosecond stimulated Raman spectroscopy. The ultrafast (0.6–0.8 ps) ICT and subsequent vibrational relaxation (6–9 ps) in the CT state were ubiquitously observed in the ground- and excited-state vibrational modes of the solute curcumin and the νCSC and νS=O modes of solvent DMSO. The ICT of curcumin in the excited state was preceded by the disruption of the solvation shells, including the breakage of hydrogen bonding between curcumin and DMSO molecules, which occurs at the ultrafast (20–50 fs) time scales.
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Scapinello L, Vesco G, Nardo L, Maspero A, Vavassori F, Galli S, Penoni A. Synthesis, Characterization and DNA-Binding Affinity of a New Zinc(II) Bis(5-methoxy-indol-3-yl)propane-1,3-dione Complex. Pharmaceuticals (Basel) 2021; 14:760. [PMID: 34451857 PMCID: PMC8398859 DOI: 10.3390/ph14080760] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 07/21/2021] [Accepted: 07/28/2021] [Indexed: 11/27/2022] Open
Abstract
The novel zinc(II) µ-oxo-bridged-dimeric complex [Zn2(µ-O)2(BMIP)2] (BMIP = 1,3-bis(5-methoxy-1-methyl-1H-indol-3-yl)propane-1,3-dione), 1, was synthetized and fully characterized. The spectral data indicate a zincoxane molecular structure, with the BMIP ligand coordinating in its neutral form via its oxygen atoms. Structural changes in 1 in dimethylsulfoxide (DMSO) were evidenced by means of spectroscopic techniques including infrared absorption and nuclear magnetic resonance, showing DMSO entrance in the coordination sphere of the metal ion. The resulting complex [Zn2(µ-O)2(BMIP)2(DMSO)], 2, readily reacts in the presence of N-methyl-imidazole (NMI), a liquid-phase nucleoside mimic, to form [Zn2(µ-O)2(BMIP)2(NMI)], 3, through DMSO displacement. The three complexes show high thermal stability, demonstrating that 1 has high affinity for hard nucleophiles. Finally, with the aim of probing the suitability of this system as model scaffold for new potential anticancer metallodrugs, the interactions of 1 with calf thymus DNA were investigated in vitro in pseudo-physiological environment through UV-Vis absorption and fluorescence emission spectroscopy, as well as time-resolved fluorescence studies. The latter analyses revealed that [Zn2(µ-O)2(BMIP)2(DMSO)] binds to DNA with high affinity upon DMSO displacement, opening new perspectives for the development of optimized drug substances.
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Affiliation(s)
| | | | | | - Angelo Maspero
- Department of Science and High Technology, Università degli Studi dell’Insubria, Via Valleggio 9, 22100 Como, Italy; (L.S.); (G.V.); (L.N.); (F.V.); (S.G.); (A.P.)
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Jahan I, Nayeem SM. Destabilization of Alzheimer's Aβ 42 protofibrils with acyclovir, carmustine, curcumin, and tetracycline: insights from molecular dynamics simulations. NEW J CHEM 2021. [DOI: 10.1039/d1nj04453b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Among the neurodegenerative diseases, one of the most common dementia is Alzheimer's disease (AD).
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Affiliation(s)
- Ishrat Jahan
- Department of Chemistry, Aligarh Muslim University, Aligarh 202002, UP, India
| | - Shahid M. Nayeem
- Department of Chemistry, Aligarh Muslim University, Aligarh 202002, UP, India
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Therapeutic role of curcumin and its novel formulations in gynecological cancers. J Ovarian Res 2020; 13:130. [PMID: 33148295 PMCID: PMC7643381 DOI: 10.1186/s13048-020-00731-7] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 10/23/2020] [Indexed: 12/13/2022] Open
Abstract
Gynecological cancers are among the leading causes of cancer-associated mortality worldwide. While the number of cases are rising, current therapeutic approaches are not efficient enough. There are considerable side-effects as well as treatment resistant types. In addition, which all make the treatment complicated for afflicted cases. Therefore, in order to improve efficacy of the treatment process and patients’ quality of life, searching for novel adjuvant treatments is highly warranted. Curcumin, a promising natural compound, is endowed with numerous therapeutic potentials including significant anticancer effects. Recently, various investigations have demonstrated the anticancer effects of curcumin and its novel analogues on gynecological cancers. Moreover, novel formulations of curcumin have resulted in further propitious effects. This review discusses these studies and highlights the possible underlying mechanisms of the observed effects.
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Saeed BA, Hassan QMA, Emshary CA, Sultan HA, Elias RS. The nonlinear optical properties of two dihydropyridones derived from curcumin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 240:118622. [PMID: 32604050 DOI: 10.1016/j.saa.2020.118622] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 05/22/2020] [Accepted: 06/13/2020] [Indexed: 06/11/2023]
Abstract
Two dihydropyridone compounds are synthesized from curcumin using microwave radiation. Both compounds were identified by their melting points and 1HNMR spectra. The nonlinear properties viz., nonlinear absorption coefficients and nonlinear refractive index of both compounds were calculated at wavelength 473 nm using the diffraction ring patterns and Z-scan techniques separately. The diffraction ring patterns evolved from circular symmetric to asymmetric due to convection current in the vertical direction. As a result of using Gaussian laser beam, the Fraunhofer approximation of the Fresnel-Kirchhoff diffraction, have led to successful simulation of the diffraction ring patterns with good quantitative and excellent qualitative agreements compared with experimental results. Optical limiting property has been tested in both compounds.
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Affiliation(s)
- Bahjat A Saeed
- Department of Chemistry, College of Education for Pure Sciences, University of Basrah, Basrah, Iraq
| | - Qusay M A Hassan
- Department of Physics, College of Education for Pure Sciences, University of Basrah, Basrah, Iraq.
| | - C A Emshary
- Department of Physics, College of Education for Pure Sciences, University of Basrah, Basrah, Iraq
| | - H A Sultan
- Department of Physics, College of Education for Pure Sciences, University of Basrah, Basrah, Iraq
| | - Rita S Elias
- College of Pharmacy, University of Basrah, Basrah, Iraq
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Muniyandi K, George B, Parimelazhagan T, Abrahamse H. Role of Photoactive Phytocompounds in Photodynamic Therapy of Cancer. Molecules 2020; 25:E4102. [PMID: 32911753 PMCID: PMC7570746 DOI: 10.3390/molecules25184102] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 08/26/2020] [Accepted: 09/04/2020] [Indexed: 01/10/2023] Open
Abstract
Cancer is one of the greatest life-threatening diseases conventionally treated using chemo- and radio-therapy. Photodynamic therapy (PDT) is a promising approach to eradicate different types of cancers. PDT requires the administration of photosensitisers (PSs) and photoactivation using a specific wavelength of light in the presence of molecular oxygen. This photoactivation exerts an anticancer effect via apoptosis, necrosis, and autophagy of cancer cells. Recently, various natural compounds that exhibit photosensitising potentials have been identified. Photoactive substances derived from medicinal plants have been found to be safe in comparison with synthetic compounds. Many articles have focused on PDT mechanisms and types of PSs, but limited attention has been paid to the phototoxic activities of phytocompounds. The reduced toxicity and side effects of natural compounds inspire the researchers to identify and use plant extracts or phytocompounds as a potent natural PS candidate for PDT. This review focusses on the importance of common photoactive groups (furanocoumarins, polyacetylenes, thiophenes, curcumins, alkaloids, and anthraquinones), their phototoxic effects, anticancer activity and use as a potent PS for an effective PDT outcome in the treatment of various cancers.
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Affiliation(s)
- Kasipandi Muniyandi
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, 17011, Doornfontein 2028, South Africa; (K.M.); (B.G.)
- Bioprospecting Laboratory, Department of Botany, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu 641046, India;
| | - Blassan George
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, 17011, Doornfontein 2028, South Africa; (K.M.); (B.G.)
| | - Thangaraj Parimelazhagan
- Bioprospecting Laboratory, Department of Botany, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu 641046, India;
| | - Heidi Abrahamse
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, 17011, Doornfontein 2028, South Africa; (K.M.); (B.G.)
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Kazantzis KT, Koutsonikoli K, Mavroidi B, Zachariadis M, Alexiou P, Pelecanou M, Politopoulos K, Alexandratou E, Sagnou M. Curcumin derivatives as photosensitizers in photodynamic therapy: photophysical properties and in vitro studies with prostate cancer cells. Photochem Photobiol Sci 2020; 19:193-206. [PMID: 31956888 DOI: 10.1039/c9pp00375d] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Photodynamic therapy (PDT) is a minimally invasive approach to treat various forms of cancer, based on the ability of certain non-toxic molecules (photosensitizers) to generate reactive oxygen species (ROS) after excitation by light of a certain wavelength and eventually induce strong phototoxic reactions against malignant cells and other pathogens. Curcumin is one of the most extensively investigated phytochemicals with a wide range of therapeutic properties and has been shown to induce strong photocytotoxic effects in micromolar concentrations against a variety of cancer cell lines. Curcumin (1) is comparatively evaluated with the naturally occurring bisdemethoxy Curcumin (2), which lacks the two methoxy groups, as well as two newly synthesized curcuminoids, the cinnamaldehyde derivative (3) and the dimethylamino one (4), designed to increase the absorption maximum and hence the tissue penetration. The synthetic curcuminoids were successfully synthesized in sufficient amounts and their photophysical properties such as absorption, fluorescence, photobleaching and free radical generation were investigated. Compound 4 exhibited a significant increase in peak absorption (497 nm) and strong fluorescent emission signals were recorded for all curcuminoids. Photobleaching of 4 was comparable to 1 whereas 2 and 3 showed more extended photobleaching but much higher ROS production in very short irradiation times. Compounds 2 and 4 exhibited specific intracellular localization. After dark and light cytotoxicity experiments against LNCaP prostate cancer cell line for all curcuminoids, concentration of 3 μM and irradiance of 6 mW cm-2 were selected for the PDT application which resulted in remarkable results with very short LD50. Curcuminoids 2 and 4 exhibited a significant dose-dependent PDT effect. The biphasic dose-response photodynamic effect observed for 1 and 3 may provide a strategy against prolonged and sustained photosensitivity.
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Affiliation(s)
- K T Kazantzis
- Laboratory of Biomedical Optics and Applied Biophysics, School of Electrical and Computer Engineering, National Technical University of Athens, Zografou Campus, 15780 Athens, Greece.
| | - K Koutsonikoli
- Laboratory of Biomedical Optics and Applied Biophysics, School of Electrical and Computer Engineering, National Technical University of Athens, Zografou Campus, 15780 Athens, Greece.
| | - B Mavroidi
- Laboratories of Structural Studies of Biomolecules and Pharmaceuticals with NMR, Institute of Biosciences and Applications, NCSR "Demokritos", Ag. Paraskevi, 153 10, Athens, Greece.
| | - M Zachariadis
- Bioimaging and Cell analysis, Material and Chemical Characterisation Facility, University of Bath, Claverton Down, Bath BA2 7AY, UK
| | - P Alexiou
- Laboratories of Structural Studies of Biomolecules and Pharmaceuticals with NMR, Institute of Biosciences and Applications, NCSR "Demokritos", Ag. Paraskevi, 153 10, Athens, Greece.
| | - M Pelecanou
- Laboratories of Structural Studies of Biomolecules and Pharmaceuticals with NMR, Institute of Biosciences and Applications, NCSR "Demokritos", Ag. Paraskevi, 153 10, Athens, Greece.
| | - K Politopoulos
- Laboratory of Biomedical Optics and Applied Biophysics, School of Electrical and Computer Engineering, National Technical University of Athens, Zografou Campus, 15780 Athens, Greece.
| | - E Alexandratou
- Laboratory of Biomedical Optics and Applied Biophysics, School of Electrical and Computer Engineering, National Technical University of Athens, Zografou Campus, 15780 Athens, Greece.
| | - M Sagnou
- Laboratories of Structural Studies of Biomolecules and Pharmaceuticals with NMR, Institute of Biosciences and Applications, NCSR "Demokritos", Ag. Paraskevi, 153 10, Athens, Greece.
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14
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Elahi M, Ali S, Tahir HM, Mushtaq R, Bhatti MF. Sericin and fibroin nanoparticles—natural product for cancer therapy: a comprehensive review. INT J POLYM MATER PO 2020. [DOI: 10.1080/00914037.2019.1706515] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Mehreen Elahi
- Department of Zoology, Government College University, Lahore, Pakistan
| | - Shaukat Ali
- Department of Zoology, Government College University, Lahore, Pakistan
| | | | - Rabia Mushtaq
- Department of Zoology, Government College University, Lahore, Pakistan
| | - Muhammad Farooq Bhatti
- Department of Zoology, Government College University, Lahore, Pakistan
- Sericulture Wing, Forest Department, Lahore, Pakistan
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15
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Karmakar S, Chakraborty S, Gautam S, Chowdhury PK. Exploring the potency of the naturally occurring polyphenol curcumin as a probe for protein aggregation in crowded environments. Int J Biol Macromol 2019; 141:1088-1101. [DOI: 10.1016/j.ijbiomac.2019.09.049] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 09/03/2019] [Accepted: 09/06/2019] [Indexed: 01/12/2023]
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16
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Effect of casein on pure lecithin liposome: Mixed biomacromolecular system for providing superior stabilization to hydrophobic molecules. Colloids Surf B Biointerfaces 2019; 180:298-305. [DOI: 10.1016/j.colsurfb.2019.04.038] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 03/19/2019] [Accepted: 04/16/2019] [Indexed: 01/26/2023]
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17
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Araiza-Calahorra A, Sarkar A. Pickering emulsion stabilized by protein nanogel particles for delivery of curcumin: Effects of pH and ionic strength on curcumin retention. FOOD STRUCTURE-NETHERLANDS 2019. [DOI: 10.1016/j.foostr.2019.100113] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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18
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Raikwar MM, Rhyman L, Ramasami P, Sekar N. Theoretical Investigation of Difluoroboron Complex of Curcuminoid Derivatives with and without Phenyl Substituent (at Meso Position): Linear and Non-Linear Optical Study. ChemistrySelect 2018. [DOI: 10.1002/slct.201802231] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Manish M. Raikwar
- Dyestuff Technology Department; Institute of Chemical Technology Nathalal Parekh Marg; Matunga, Mumbai 400019 India
| | - Lydia Rhyman
- Department of Chemistry; Computational Chemistry Group; Faculty of Science University of Mauritius; Réduit 80837 Mauritius
- Department of Applied Chemistry; University of Johannesburg; Doornfontein Campus; Johannesburg 2028 South Africa
| | - Ponnadurai Ramasami
- Department of Chemistry; Computational Chemistry Group; Faculty of Science University of Mauritius; Réduit 80837 Mauritius
- Department of Applied Chemistry; University of Johannesburg; Doornfontein Campus; Johannesburg 2028 South Africa
| | - Nagaiyan Sekar
- Dyestuff Technology Department; Institute of Chemical Technology Nathalal Parekh Marg; Matunga, Mumbai 400019 India
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19
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Harada T, Lincoln SF, Kee TW. Excited-state dynamics of the medicinal pigment curcumin in a hydrogel. Phys Chem Chem Phys 2018; 18:28125-28133. [PMID: 27711741 DOI: 10.1039/c6cp05648b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Curcumin is a yellow polyphenol with multiple medicinal effects. These effects, however, are limited due to its poor aqueous stability and solubility. A hydrogel of 3% octadecyl randomly substituted polyacrylate (PAAC18) has been shown to provide high aqueous stability for curcumin under physiological conditions, offering a route for photodynamic therapy. In this study, the excited-state photophysics of curcumin in the PAAC18 hydrogel is investigated using a combination of femtosecond transient absorption and fluorescence upconversion spectroscopy. The transient absorption results reveal a multiexponential decay in the excited-state kinetics with fast (1 ps & 15 ps) and slow (110 ps & ≈5 ns) components. The fast decay component exhibits a deuterium isotope effect with D2O in the hydrogel, indicating that the 15 ps decay component is attributable to excited-state intramolecular hydrogen atom transfer of curcumin in the PAAC18 hydrogel. In addition, solvent reorganisation of excited-state curcumin is investigated using multiwavelength femtosecond fluorescence upconversion spectroscopy. The results show that the dominant solvation response (τ = 0.08 ps) is a fast inertial motion owing to the presence of bulk-like water in the vicinity of the hydrophobic octadecyl substituents of the PAAC18 hydrogel. The results also show an additional response with longer time constants of 1 and 6 ps, which is attributable to translational diffusion of confined water molecules in the three-dimensional, cross-linking network of the octadecyl substituents of PAAC18. Overall, we show that excited-state intramolecular hydrogen atom transfer and solvent reorganisation are major photophysical events for curcumin in the PAAC18 hydrogel.
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Affiliation(s)
- Takaaki Harada
- Department of Chemistry, The University of Adelaide, Adelaide, South Australia 5005, Australia.
| | - Stephen F Lincoln
- Department of Chemistry, The University of Adelaide, Adelaide, South Australia 5005, Australia.
| | - Tak W Kee
- Department of Chemistry, The University of Adelaide, Adelaide, South Australia 5005, Australia.
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20
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Khadem Sadigh M, Zakerhamidi M, Shamkhali A, Babaei E. Photo-physical behaviors of various active forms of curcumin in polar and low polar environments. J Photochem Photobiol A Chem 2017. [DOI: 10.1016/j.jphotochem.2017.08.050] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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21
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Panja S, Behera S, Kundu SC, Halder M. Optical Spectroscopic and Morphological Characterizations of Curcuminized Silk Biomaterials: A Perspective from Drug Stabilization. ACS OMEGA 2017; 2:6755-6767. [PMID: 30023531 PMCID: PMC6045347 DOI: 10.1021/acsomega.7b00809] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Accepted: 08/30/2017] [Indexed: 06/02/2023]
Abstract
Silk protein fibroins have gained remarkable attention in recent years as a potential drug carrier in the developing medicinal field of research. In this work, the stability of anticancer agent curcumin in the presence of two different silk protein fibroins from nonmulberry Antheraea mylitta (Am) and mulberry Bombyx mori (Bm) has been examined, and the possible mechanism of stabilization in a physiologically relevant medium has also been explored. In solution phase, upon treatment with curcumin, the predominated β-sheet structure of Am is marginally altered, whereas in the case of Bm, a substantial structural changeover has been observed (from coil to β-sheet) to accommodate the hydrophobic drug. Also, the morphological assessments suggest that curcumin is nicely housed in the nanoscaffold of silk fibroin (SF). Consequently, the extent of degradation of curcumin is remarkably suppressed upon encapsulation with the SF. The dissimilarity in the binding patterns of curcumin with these silk proteins could be responsible for the observed difference in the stability orders. Curcumin binds the surface of Bm, whereas in Am, the drug is incorporated in the hydrophobic cavity, and as a consequence, the drug is effectively sequestered out of the aqueous medium. The increase in the fluorescence quantum yield upon interaction with the protein greatly modulates the excited-state intermolecular hydrogen atom transfer (ESIPT) process, which is in tune with a substantial increase in the lifetime of the excited-state of curcumin. The ESIPT is known to play a crucial role in the degradation of curcumin under physiological pH conditions, which perhaps implies its potential therapeutic activity in the presence of silk. The in-depth spectroscopic analyses of curcumin-SF complexes in aqueous medium can provide useful insights for further applicative developments in bioengineering.
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Affiliation(s)
- Sudipta Panja
- Department
of Chemistry and Department of Biotechnology, Indian Institute
of Technology Kharagpur, Kharagpur, West Bengal 721302, India
| | - Sibaram Behera
- Department
of Chemistry and Department of Biotechnology, Indian Institute
of Technology Kharagpur, Kharagpur, West Bengal 721302, India
| | - Subhas C. Kundu
- Department
of Chemistry and Department of Biotechnology, Indian Institute
of Technology Kharagpur, Kharagpur, West Bengal 721302, India
| | - Mintu Halder
- Department
of Chemistry and Department of Biotechnology, Indian Institute
of Technology Kharagpur, Kharagpur, West Bengal 721302, India
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22
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Mohammed F, Rashid-Doubell F, Cassidy S, Henari F. A comparative study of the spectral, fluorometric properties and photostability of natural curcumin, iron- and boron- complexed curcumin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 183:439-450. [PMID: 28494396 DOI: 10.1016/j.saa.2017.04.027] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 04/11/2017] [Accepted: 04/17/2017] [Indexed: 06/07/2023]
Abstract
Curcumin is a yellow phenolic compound with a wide range of reported biological effects. However, two main obstacles hinder the use of curcumin therapeutically, namely its poor bioavailability and photostability. We have synthesized two curcumin complexes, the first a boron curcumin complex (B-Cur2) and the second an iron (Fe-Cur3) complex of curcumin. Both derivatives showed high fluorescence efficiency (quantum yield) and greater photostability in solution. The improved photostability could be attributed to the coordination structures and the removal of β-diketone group from curcumin. The fluorescence and ultra violet/visible absorption spectra of curcumin, B-Cur2 and Fe-Cur3 all have a similar spectral pattern when dissolved in the same organic solvent. However, a shift towards a lower wavelength was observed when moving from polar to non-polar solvents, possibly due to differences in solvent polarity. A plot of Stokes' shift vs the orientation polarity parameter (Δf) or vs the solvent polarity parameter (ET 30) showed an improved correlation between the solvent polarity parameter than with the orientation polarity parameter and indicating that the red shift observed could be due to hydrogen-bonding between the solvent molecules. A similar association was obtained when Stokes' shift was replaced by maximum synchronous fluorescence. Both B-Cur2 and Fe-Cur3 had larger quantum yields than curcumin, suggesting they may be good candidates for medical imaging and in vitro studies.
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Affiliation(s)
- Fatima Mohammed
- Department of Basic Medical Sciences, Royal College of Surgeons in Ireland, Medical University of Bahrain, P.O. Box 15503, Adliya, Bahrain.
| | - Fiza Rashid-Doubell
- Department of Basic Medical Sciences, Royal College of Surgeons in Ireland, Medical University of Bahrain, P.O. Box 15503, Adliya, Bahrain
| | - Seamas Cassidy
- Department of Basic Medical Sciences, Royal College of Surgeons in Ireland, Medical University of Bahrain, P.O. Box 15503, Adliya, Bahrain
| | - Fryad Henari
- Department of Basic Medical Sciences, Royal College of Surgeons in Ireland, Medical University of Bahrain, P.O. Box 15503, Adliya, Bahrain
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23
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Excited state dynamics of bis-dehydroxycurcumin tert-butyl ester, a diketo-shifted derivative of the photosensitizer curcumin. PLoS One 2017; 12:e0175225. [PMID: 28448635 PMCID: PMC5407637 DOI: 10.1371/journal.pone.0175225] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 03/22/2017] [Indexed: 11/19/2022] Open
Abstract
Bis-dehydroxycurcumin tert-butyl ester (K2T23) is a derivative of the natural spice curcumin. Curcumin is widely studied for its multiple therapeutic properties, including photosensitized cytotoxicity. However, the full exploitation of curcumin phototoxic potential is hindered by the extreme instability of its excited state, caused by very efficient non radiative decay by means of transfer of the enolic proton to the nearby keto oxygen. K2T23 is designed to exhibit a tautomeric equilibrium shifted toward the diketo conformers with respect to natural curcumin. This property should endow K2T23 with superior excited-state stability when excited in the UVB band, i.e., in correspondence of the diketo conformers absorption peaks, making this compound an interesting candidate for topical photodynamic therapy of, e.g., skin tumors or oral infections. In this work, the tautomeric equilibrium of K2T23 between the keto-enolic and diketo conformers is assessed in the ground state in several organic solvents by UV-visible absorption and by nuclear magnetic resonance. The same tautomeric equilibrium is also probed in the excited-state in the same environments by means of steady-state fluorescence and time-correlated single-photon counting measurements. These techniques are also exploited to elucidate the excited state dynamics and excited-state deactivation pathways of K2T23, which are compared to those determined for several other curcuminoids characterized in previous works of ours. The ability of K2T23 in photosensitizing the production of singlet oxygen is compared with that of curcumin.
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24
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D’Archivio AA, Maggi MA. Investigation by response surface methodology of the combined effect of pH and composition of water-methanol mixtures on the stability of curcuminoids. Food Chem 2017; 219:414-418. [DOI: 10.1016/j.foodchem.2016.09.167] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 08/29/2016] [Accepted: 09/27/2016] [Indexed: 01/19/2023]
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25
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Li H, Tian J, Wu A, Wang J, Ge C, Sun Z. Self-assembled silk fibroin nanoparticles loaded with binary drugs in the treatment of breast carcinoma. Int J Nanomedicine 2016; 11:4373-80. [PMID: 27621628 PMCID: PMC5015876 DOI: 10.2147/ijn.s108633] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Self-assembled nanoparticles of the natural polymer, silk fibroin (SF), are a very promising candidate in drug delivery due to their biocompatible and biodegradable properties. In this study, SF nanoparticles loaded with 5-fluorouracil (5-FU) and curcumin with size 217±0.4 nm and with a loading efficacy of 45% and 15% for 5-FU and curcumin, respectively, were prepared. The in vitro release effect of 5-FU and curcumin from nanoparticles was evaluated as ~100% and ~5%, respectively. It has been revealed that the application of such a nanodrug can increase the level of reactive oxygen species, which in turn induces apoptosis of cancer cells in vitro. Animal studies have shown that tumors could be noticeably reduced after being injected with the drug-entrapped nanoparticles. More apoptotic cells were found after 7 days of treatment with SF nanoparticles by a hematoxylin–eosin staining assay. These results demonstrate the future potential of nanoparticle-loaded binary drugs in the treatment of breast cancer.
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Affiliation(s)
- Hui Li
- School of Biological and Basic Medical Science
| | - Jian Tian
- School of Biological and Basic Medical Science; School of Radiological & Interdisciplinary Sciences, Soochow University
| | - Anqing Wu
- School of Radiological & Interdisciplinary Sciences, Soochow University
| | - Jiamin Wang
- School of Biological and Basic Medical Science
| | - Cuicui Ge
- School of Radiological & Interdisciplinary Sciences, Soochow University
| | - Ziling Sun
- School of Biological and Basic Medical Science; School of Radiological & Interdisciplinary Sciences, Soochow University; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou, Jiangsu, People's Republic of China
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26
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Margar SN, Sekar N. Nonlinear optical properties of curcumin: solvatochromism-based approach and computational study. Mol Phys 2016. [DOI: 10.1080/00268976.2016.1161248] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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27
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Curcumin Nanoformulation for Cervical Cancer Treatment. Sci Rep 2016; 6:20051. [PMID: 26837852 PMCID: PMC4738284 DOI: 10.1038/srep20051] [Citation(s) in RCA: 107] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 12/23/2015] [Indexed: 12/12/2022] Open
Abstract
Cervical cancer is one of the most common cancers among women worldwide. Current standards of care for cervical cancer includes surgery, radiation, and chemotherapy. Conventional chemotherapy fails to elicit therapeutic responses and causes severe systemic toxicity. Thus, developing a natural product based, safe treatment modality would be a highly viable option. Curcumin (CUR) is a well-known natural compound, which exhibits excellent anti-cancer potential by regulating many proliferative, oncogenic, and chemo-resistance associated genes/proteins. However, due to rapid degradation and poor bioavailability, its translational and clinical use has been limited. To improve these clinically relevant parameters, we report a poly(lactic-co-glycolic acid) based curcumin nanoparticle formulation (Nano-CUR). This study demonstrates that in comparison to free CUR, Nano-CUR effectively inhibits cell growth, induces apoptosis, and arrests the cell cycle in cervical cancer cell lines. Nano-CUR treatment modulated entities such as miRNAs, transcription factors, and proteins associated with carcinogenesis. Moreover, Nano-CUR effectively reduced the tumor burden in a pre-clinical orthotopic mouse model of cervical cancer by decreasing oncogenic miRNA-21, suppressing nuclear β-catenin, and abrogating expression of E6/E7 HPV oncoproteins including smoking compound benzo[a]pyrene (BaP) induced E6/E7 and IL-6 expression. These superior pre-clinical data suggest that Nano-CUR may be an effective therapeutic modality for cervical cancer.
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28
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Vukićević M, Tønnesen HH. Interaction between curcumin and human serum albumin in the presence of excipients and the effect of binding on curcumin photostability. Pharm Dev Technol 2015; 21:428-36. [DOI: 10.3109/10837450.2015.1016618] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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29
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Mouslmani M, Rosenholm JM, Prabhakar N, Peurla M, Baydoun E, Patra D. Curcumin associated poly(allylamine hydrochloride)-phosphate self-assembled hierarchically ordered nanocapsules: size dependent investigation on release and DPPH scavenging activity of curcumin. RSC Adv 2015. [DOI: 10.1039/c4ra12831a] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Curcumin associated poly(allylamine hydrochloride) crosslinks with dipotassium phosphate and silica nanoparticles to form nanocapsule that shows DPPH scavenging activity and releases curcumin triggered by pH.
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Affiliation(s)
- Mai Mouslmani
- Department of Chemistry
- American University of Beirut
- Beirut
- Lebanon
| | | | - Neeraj Prabhakar
- Laboratory for Physical Chemistry
- Åbo Akademi University
- Turku
- Finland
| | - Markus Peurla
- Laboratory of Electron Microscopy
- University of Turku
- Turku
- Finland
| | - Elias Baydoun
- Department of Biology
- American University of Beirut
- Beirut
- Lebanon
| | - Digambara Patra
- Department of Chemistry
- American University of Beirut
- Beirut
- Lebanon
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30
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Harada T, McTernan HL, Pham DT, Lincoln SF, Kee TW. Femtosecond Transient Absorption Spectroscopy of the Medicinal Agent Curcumin in Diamide Linked γ-Cyclodextrin Dimers. J Phys Chem B 2014; 119:2425-33. [DOI: 10.1021/jp507272f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Takaaki Harada
- Department of Chemistry, The University of Adelaide, Adelaide,
South Australia 5005, Australia
| | - Hamish L. McTernan
- Department of Chemistry, The University of Adelaide, Adelaide,
South Australia 5005, Australia
| | - Duc-Truc Pham
- Department of Chemistry, The University of Adelaide, Adelaide,
South Australia 5005, Australia
| | - Stephen F. Lincoln
- Department of Chemistry, The University of Adelaide, Adelaide,
South Australia 5005, Australia
| | - Tak W. Kee
- Department of Chemistry, The University of Adelaide, Adelaide,
South Australia 5005, Australia
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31
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Ghosh S, Kuchlyan J, Banik D, Kundu N, Roy A, Banerjee C, Sarkar N. Organic Additive, 5-Methylsalicylic Acid Induces Spontaneous Structural Transformation of Aqueous Pluronic Triblock Copolymer Solution: A Spectroscopic Investigation of Interaction of Curcumin with Pluronic Micellar and Vesicular Aggregates. J Phys Chem B 2014; 118:11437-48. [DOI: 10.1021/jp507378w] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Surajit Ghosh
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Jagannath Kuchlyan
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Debasis Banik
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Niloy Kundu
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Arpita Roy
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Chiranjib Banerjee
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Nilmoni Sarkar
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
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32
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Nguyen ATB, Winckler P, Loison P, Wache Y, Chambin O. Physico-chemical state influences in vitro release profile of curcumin from pectin beads. Colloids Surf B Biointerfaces 2014; 121:290-8. [DOI: 10.1016/j.colsurfb.2014.05.023] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Revised: 05/09/2014] [Accepted: 05/14/2014] [Indexed: 12/31/2022]
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33
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Elucidation of the relationships between H-bonding patterns and excited state dynamics in cyclovalone. Molecules 2014; 19:13282-304. [PMID: 25170950 PMCID: PMC6270912 DOI: 10.3390/molecules190913282] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 08/08/2014] [Accepted: 08/20/2014] [Indexed: 02/07/2023] Open
Abstract
Cyclovalone is a synthetic curcumin derivative in which the keto-enolic system is replaced by a cyclohexanone ring. This modification of the chemical structure might in principle result in an excited state that is more stable than that of curcumin, which in turn should produce an enhanced phototoxicity. Indeed, although curcumin exhibits photosensitized antibacterial activity, this compound is characterized by very fast excited-state dynamics which limit its efficacy as a photosensitizer. In previous works we showed that the main non-radiative decay pathway of keto-enolic curcuminoids is through excited-state transfer of the enolic proton to the keto-oxygen. Another effective deactivation pathway involves an intermolecular charge transfer mechanism occurring at the phenyl rings, made possible by intramolecular H-bonding between the methoxy and the hydroxyl substituent. In this paper we present UV-Vis and IR absorption spectra data with the aim of elucidating the intramolecular charge distribution of this compound and its solvation patterns in different environments, with particular focus on solute-solvent H-bonding features. Moreover, we discuss steady state and time-resolved fluorescence data that aim at characterizing the excited-state dynamics of cyclovalone, and we compare its decay photophysics to that of curcumin. Finally, because during the characterization procedures we found evidence of very fast photodegradation of cyclovalone, its photostability in four organic solvents was studied by HPLC and the corresponding relative degradation rates were calculated.
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34
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Tovsen ML, Bruzell E, Ferrari E, Saladini M, Gaware VS, Másson M, Kristensen S, Tønnesen HH. Antibacterial phototoxic effects of synthetic asymmetric and glycosylated curcuminoids in aqueous formulations: studies on curcumin and curcuminoids. LIV. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2014; 140:150-6. [PMID: 25129700 DOI: 10.1016/j.jphotobiol.2014.07.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Revised: 07/04/2014] [Accepted: 07/20/2014] [Indexed: 01/07/2023]
Abstract
The aim of this study was to evaluate the in vitro phototoxic potential of synthetic asymmetric and glycosylated curcuminoids on planktonic model bacteria by counting the colony forming units. The Gram-positive Enterococcus faecalis and the Gram-negative Escherichia coli were exposed to aqueous solutions of the curcuminoids (⩽2.5 μM) in the presence or absence of selected pharmaceutical excipients (Pluronic F127, PEG 400 and HPγCD) in combination with a low irradiation dose (5 J/cm(2); λmax: 450 nm) of constant irradiance and time. All the asymmetric curcuminoids, but only one of the glycosylated curcuminoids demonstrated substantial phototoxic effect on E.faecalis (⩾4.7 log reduction). Only two of the asymmetric curcuminoids showed a moderate to low phototoxic effect on the more persistent E.coli. This study emphasized that aromatic hydroxyl substituents in the para-position are important to maintain the phototoxic potential of curcuminoids independent of molecular symmetry. Glycosylation of the aromatic substituents resulted in a substantial loss in phototoxicity towards planktonic bacteria, an apparent change in the non-radiative S₁-decay process and a weaker interaction with Pluronic F127 compared to the non-glycosylated curcuminoids. The selected excipients Pluronic F127, PEG 400 and HPγCD strongly influenced the phototoxic potential of the unsymmetrical, non-glycosylated compounds.
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Affiliation(s)
- Marianne Lilletvedt Tovsen
- University of Oslo, School of Pharmacy, Department of Pharmacy, Oslo, Norway; Nordic Institute of Dental Materials (NIOM), Oslo, Norway
| | - Ellen Bruzell
- Nordic Institute of Dental Materials (NIOM), Oslo, Norway
| | - Erika Ferrari
- Department of Chemistry, University of Modena and Reggio Emilia, Modena, Italy
| | - Monica Saladini
- Department of Chemistry, University of Modena and Reggio Emilia, Modena, Italy
| | - Vivek S Gaware
- Faculty of Pharmaceutical Sciences, School of Health Sciences, University of Iceland, Reykjavik, Iceland; PCI Biotech AS, Lysaker, Norway
| | - Már Másson
- Faculty of Pharmaceutical Sciences, School of Health Sciences, University of Iceland, Reykjavik, Iceland
| | - Solveig Kristensen
- Faculty of Pharmaceutical Sciences, School of Health Sciences, University of Iceland, Reykjavik, Iceland
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35
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Bai G, Yu C, Cheng C, Hao E, Wei Y, Mu X, Jiao L. Syntheses and photophysical properties of BF2 complexes of curcumin analogues. Org Biomol Chem 2014; 12:1618-26. [DOI: 10.1039/c3ob42201a] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Highly photostable π-extended curcumin-BF2 complexes with strong absorption and fluorescence ranging from 400 to 800 nm were reported.
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Affiliation(s)
- Guifeng Bai
- Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- School of Chemistry and Materials Science
- Anhui Normal University
| | - Changjiang Yu
- Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- School of Chemistry and Materials Science
- Anhui Normal University
| | - Chi Cheng
- Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- School of Chemistry and Materials Science
- Anhui Normal University
| | - Erhong Hao
- Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- School of Chemistry and Materials Science
- Anhui Normal University
| | - Yun Wei
- Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- School of Chemistry and Materials Science
- Anhui Normal University
| | - Xiaolong Mu
- Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- School of Chemistry and Materials Science
- Anhui Normal University
| | - Lijuan Jiao
- Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- School of Chemistry and Materials Science
- Anhui Normal University
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36
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Heger M, van Golen RF, Broekgaarden M, Michel MC. The molecular basis for the pharmacokinetics and pharmacodynamics of curcumin and its metabolites in relation to cancer. Pharmacol Rev 2013; 66:222-307. [PMID: 24368738 DOI: 10.1124/pr.110.004044] [Citation(s) in RCA: 360] [Impact Index Per Article: 32.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
This review addresses the oncopharmacological properties of curcumin at the molecular level. First, the interactions between curcumin and its molecular targets are addressed on the basis of curcumin's distinct chemical properties, which include H-bond donating and accepting capacity of the β-dicarbonyl moiety and the phenylic hydroxyl groups, H-bond accepting capacity of the methoxy ethers, multivalent metal and nonmetal cation binding properties, high partition coefficient, rotamerization around multiple C-C bonds, and the ability to act as a Michael acceptor. Next, the in vitro chemical stability of curcumin is elaborated in the context of its susceptibility to photochemical and chemical modification and degradation (e.g., alkaline hydrolysis). Specific modification and degradatory pathways are provided, which mainly entail radical-based intermediates, and the in vitro catabolites are identified. The implications of curcumin's (photo)chemical instability are addressed in light of pharmaceutical curcumin preparations, the use of curcumin analogues, and implementation of nanoparticulate drug delivery systems. Furthermore, the pharmacokinetics of curcumin and its most important degradation products are detailed in light of curcumin's poor bioavailability. Particular emphasis is placed on xenobiotic phase I and II metabolism as well as excretion of curcumin in the intestines (first pass), the liver (second pass), and other organs in addition to the pharmacokinetics of curcumin metabolites and their systemic clearance. Lastly, a summary is provided of the clinical pharmacodynamics of curcumin followed by a detailed account of curcumin's direct molecular targets, whereby the phenotypical/biological changes induced in cancer cells upon completion of the curcumin-triggered signaling cascade(s) are addressed in the framework of the hallmarks of cancer. The direct molecular targets include the ErbB family of receptors, protein kinase C, enzymes involved in prostaglandin synthesis, vitamin D receptor, and DNA.
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Affiliation(s)
- Michal Heger
- Department of Experimental Surgery, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105AZ Amsterdam, The Netherlands.
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37
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Patra D, Sleem F. A new method for pH triggered curcumin release by applying poly(L-lysine) mediated nanoparticle-congregation. Anal Chim Acta 2013; 795:60-8. [PMID: 23998538 DOI: 10.1016/j.aca.2013.07.063] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2013] [Revised: 07/19/2013] [Accepted: 07/29/2013] [Indexed: 01/06/2023]
Abstract
We introduce a novel method for encapsulation of curcumin by synthesizing microcapsule containing self-assembled nanoparticles using poly (L-lysine), trisodium citrate and silica sol. Such microcapsules can only be prepared in neutral and alkaline environment and unencapsulated curcumin can be effectively removed by simple centrifugation with encapsulation efficiency 57.34%. The particle sizes are in the range 0.7-3 μm with an effective diameter 1.05 μm. The structure of the microcapsules is dependent upon the solubility of curcumin in the solvent environment, the microcapsule are spherical when prepared in 10% acetone and bowl-shaped/conical when prepared in water suspension, however, the size of these curcumin encapsulated microcapsules remain similar. Fluorescence microscope images confirm that curcumin is predominantly concentrated within the shell wall of the capsules. Photophysical behavior of Micro-curcumin with respect to curcumin alone is evaluated. Release of curcumin is found to be triggered by pH where acidic environment trigger maximum release compared to basic and neutral conditions. Micro-curcumin is as stable as curcumin. Drug release efficiency is found to be 61.44% and the drug release profile of Micro-curcumin follow Higuchi model. It is also revealed that β-diketone group of curcumin responsible for scavenging activity is retained in the Micro-curcumin, thus suggesting applicability of such system as a poorly water soluble drug delivery vehicle. In contrast to other curcumin delivery systems, the presented method is easy, fast and does not need flow rate monitoring device. In addition poly (L-lysine) as a non-toxic and highly stable material that prevents metabolic degradation is used in the present preparation method.
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Affiliation(s)
- Digambara Patra
- Department of Chemistry, Faculty of Arts and Sciences, American University of Beirut, Beirut, Lebanon.
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38
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Wang D, Hu J, Lv L, Xia X, Liu J, Li X. Enhanced inhibitory effect of curcumin via reactive oxygen species generation in human nasopharyngeal carcinoma cells following purple-light irradiation. Oncol Lett 2013; 6:81-85. [PMID: 23946781 PMCID: PMC3742696 DOI: 10.3892/ol.2013.1341] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2012] [Accepted: 12/31/2012] [Indexed: 11/06/2022] Open
Abstract
Curcumin, a traditional medicine, exhibits anti-carcinogenic properties in various cell lines and animals. As a phenolic compound, curcumin is light-sensitive and photoactived curcumin exhibits a greater anticancer effect compared with curcumin alone. However, the mechanisms by which curcumin inhibits tumor cell growth in human nasopharyngeal carcinoma (NPC) cells following purple light (PL) irradiation remains unclear. In the present study, CNE1 and CNE2 cells were treated with curcumin and exposed to PL at various energy densities to determine the anticancer activity of curcumin using MTT assays, staining and flow cytometry. The subsequent changes in the cell viability, morphology, cell cycle, apoptosis and reactive oxygen species (ROS) generation were measured. Curcumin inhibited cell growth in a dose-dependent manner. CNE1 and CNE2 cells tended to be arrested at the S or G2/M cell cycle stages following curcumin treatment and the levels of ROS increased in a time-dependent manner. However, after treatment with curcumin followed by PL irradiation, the levels of cytotoxicity and apoptotic cell death were significantly increased compared with the curcumin-only group. ROS generation was also enhanced in an energy-dependent manner. In summary, following PL irradiation, the anti-cancer effect of curcumin in human NPC cells was increased through apoptosis and cell cycle arrest.
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Affiliation(s)
- Dujuan Wang
- Departments of Pathology and Pathophysiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong 510080, P.R. China
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39
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Nardo L, Maspero A, Selva M, Bondani M, Palmisano G, Ferrari E, Saladini M. Excited-state dynamics of bis-dehydroxycurcumin carboxylic acid, a water-soluble derivative of the photosensitizer curcumin. J Phys Chem A 2012; 116:9321-30. [PMID: 22934679 DOI: 10.1021/jp307928a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Bis-dehydroxycurcumin carboxylic acid (K2A23) is a synthetic curcuminoid designed to exhibit enhanced water solubility and photosensitizing potential with respect to natural curcumin. In this work, the tendency of the compound to form intra- and intermolecular hydrogen bonds in the ground state is studied by UV-visible absorption and by nuclear magnetic resonance (NMR). The excited-state dynamics of the drug are probed in different environments by means of time-correlated single-photon counting measurements and related to its hydrogen bonding affinity in the excited state.
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Affiliation(s)
- Luca Nardo
- Department of Science and High Technology, University of Insubria, Via Valleggio 11, 22100 Como, Italy.
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40
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Saini RK, Das K. Picosecond Spectral Relaxation of Curcumin Excited State in a Binary Solvent Mixture of Toluene and Methanol. J Phys Chem B 2012; 116:10357-63. [DOI: 10.1021/jp305447y] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- R. K. Saini
- Laser Bio-Medical Applications & Instrumentation Division, Raja Ramanna Center for Advanced Technology, Indore, M.P., India
| | - K. Das
- Laser Bio-Medical Applications & Instrumentation Division, Raja Ramanna Center for Advanced Technology, Indore, M.P., India
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41
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Ghatak C, Rao VG, Mandal S, Ghosh S, Sarkar N. An Understanding of the Modulation of Photophysical Properties of Curcumin inside a Micelle Formed by an Ionic Liquid: A New Possibility of Tunable Drug Delivery System. J Phys Chem B 2012; 116:3369-79. [DOI: 10.1021/jp211242c] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Chiranjib Ghatak
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Vishal Govind Rao
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Sarthak Mandal
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Surajit Ghosh
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Nilmoni Sarkar
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
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42
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Nardo L, Andreoni A, Bondani M, Másson M, Haukvik T, Tønnesen HH. Studies on Curcumin and Curcuminoids. XLVI. Photophysical Properties of Dimethoxycurcumin and Bis-dehydroxycurcumin. J Fluoresc 2011; 22:597-608. [DOI: 10.1007/s10895-011-0995-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2011] [Accepted: 10/14/2011] [Indexed: 01/29/2023]
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Adhikary R, Barnes CA, Trampel RL, Wallace SJ, Kee TW, Petrich JW. Photoinduced trans-to-cis Isomerization of Cyclocurcumin. J Phys Chem B 2011; 115:10707-14. [DOI: 10.1021/jp200080s] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Ramkrishna Adhikary
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, United States
| | - Charles A. Barnes
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, United States
| | - Rachel L. Trampel
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, United States
| | - Samuel J. Wallace
- School of Chemistry and Physics, University of Adelaide, Adelaide, South Australia, 5005, Australia
| | - Tak W. Kee
- School of Chemistry and Physics, University of Adelaide, Adelaide, South Australia, 5005, Australia
| | - Jacob W. Petrich
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, United States
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44
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Nardo L, Andreoni A, Masson M, Haukvik T, Tønnesen HH. Studies on curcumin and curcuminoids. XXXIX. Photophysical properties of bisdemethoxycurcumin. J Fluoresc 2011; 21:627-35. [PMID: 20953820 PMCID: PMC3104010 DOI: 10.1007/s10895-010-0750-x] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2010] [Accepted: 10/05/2010] [Indexed: 01/21/2023]
Abstract
The steady-state absorption and fluorescence, as well as the time-resolved fluorescence properties of bisdemethoxycurcumin dissolved in several solvents differing in polarity and H-bonding capability were measured. The photodegradation quantum yield of the compound in acetonitrile and methanol was determined. The bisdemethoxycurcumin decay mechanisms from the S(1) state were discussed and compared with those of curcumin. The differences in S(1) dynamics observed between bisdemethoxy-curcumin and curcumin could be ascribed to a difference in H-bond acceptor/donor properties of the phenolic OH and a difference in strength of the intramolecular H-bond in the keto-enol moiety within the two molecules.
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Affiliation(s)
- Luca Nardo
- Department of Physics and Mathematics, University of Insubria and C.N.I.S.M.-C.N.R., Via Valleggio, 11- 22100 Como, Italy
| | - Alessandra Andreoni
- Department of Physics and Mathematics, University of Insubria and C.N.I.S.M.-C.N.R., Via Valleggio, 11- 22100 Como, Italy
| | - Màr Masson
- Faculty of Pharmaceutical Sciences, School of Health Sciences, University of Iceland, Hagi, Hofsvallagata 53, IS-107 Reykjavik, Iceland
| | - Tone Haukvik
- School of Pharmacy, University of Oslo, P.O.Box 1068, Blindern, 0316 Oslo, Norway
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45
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Ghosh R, Mondal JA, Palit DK. Ultrafast Dynamics of the Excited States of Curcumin in Solution. J Phys Chem B 2010; 114:12129-43. [DOI: 10.1021/jp1038249] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Rajib Ghosh
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - Jahur A. Mondal
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - Dipak K. Palit
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
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46
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Yallapu MM, Gupta BK, Jaggi M, Chauhan SC. Fabrication of curcumin encapsulated PLGA nanoparticles for improved therapeutic effects in metastatic cancer cells. J Colloid Interface Sci 2010; 351:19-29. [PMID: 20627257 DOI: 10.1016/j.jcis.2010.05.022] [Citation(s) in RCA: 361] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2010] [Revised: 05/06/2010] [Accepted: 05/07/2010] [Indexed: 01/08/2023]
Abstract
Curcumin, a natural polyphenolic compound, has shown promising chemopreventive and chemotherapeutic activities in cancer. Although phase I clinical trials have shown curcumin as a safe drug even at high doses, poor bioavailability and suboptimal pharmacokinetics largely moderated its anti-cancer activity in pre-clinical and clinical models. To improve its applicability in cancer therapy, we encapsulated curcumin in poly(lactic-co-glycolide) (PLGA) (biodegradable polymer) nanoparticles, in the presence of poly(vinyl alcohol) and poly(L-lysine) stabilizers, using a nano-precipitation technique. These curcumin nano-formulations were characterized for particle size, zeta potential, drug encapsulation, drug compatibility and drug release. Encapsulated curcumin existed in a highly dispersed state in the PLGA core of the nanoparticles and exhibited good solid-solid compatibility. An optimized curcumin nano-formulation (nano-CUR6) has demonstrated two and sixfold increases in the cellular uptake performed in cisplatin resistant A2780CP ovarian and metastatic MDA-MB-231 breast cancer cells, respectively, compared to free curcumin. In these cells, nano-CUR6 has shown an improved anti-cancer potential in cell proliferation and clonogenic assays compared to free curcumin. This effect was correlated with enhanced apoptosis induced by the nano-CUR6 formulation. Herein, we have also shown antibody conjugation compatibility of our PLGA-NP formulation. Results of this study suggest that therapeutic efficacy of curcumin may be enhanced by such PLGA nanoparticle formulations, and furthermore tumor specific targeted delivery of curcumin is made feasible by coupling of anti-cancer antibody to the NPs.
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Affiliation(s)
- Murali Mohan Yallapu
- Cancer Biology Research Center, Sanford Research/USD, Sioux Falls, SD 57105, USA
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47
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Caselli M, Ferrari E, Imbriano C, Pignedoli F, Saladini M, Ponterini G. Probing solute–solvent hydrogen bonding with fluorescent water-soluble curcuminoids. J Photochem Photobiol A Chem 2010. [DOI: 10.1016/j.jphotochem.2010.01.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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