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Dutra JL, Honorato J, Graminha A, Moraes CAF, de Oliveira KT, Cominetti MR, Castellano EE, Batista AA. Pd(II)/diphosphine/curcumin complexes as potential anticancer agents. Dalton Trans 2024. [PMID: 38938129 DOI: 10.1039/d4dt01045k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2024]
Abstract
Palladium(II) complexes have stimulated research interest mainly due to their in vitro cytotoxicity against various cancer cell lines and their low cytotoxicity in healthy cells. Thus, in this work, we combined Pd(II)/phosphine systems with the natural product curcumin as a ligand, obtaining a series of complexes, [Pd(cur)(PPh3)2]PF6 (A1), [Pd(cur)(dppe)]PF6 (A2), [Pd(cur)(dppp)]PF6 (A3), [Pd(cur)(dppb)]PF6 (A4) and [Pd(cur)(dppf)]PF6 (A5), where dppe = 1,2-bis(diphenylphosphino)ethane, dppp = 1,3-bis(diphenylphosphino)propane, dppb = 1,4-bis(diphenylphosphino)butane, and dppf = 1,1'-bis(diphenylphosphino)ferrocene (P-P), which were characterized by elemental analysis, molar conductivity analysis, and mass, NMR (1H, 13C, 31P{1H}), UV-vis, and IR spectroscopies, and four of them (A1, A2, A4, and A5) by X-ray crystallography. The in vitro cell viability of the complexes A1-A5, cisplatin, and the free ligand curcumin against MDA-MB-231 (human triple-negative breast tumor cells), SK-BR-3 (human breast tumor cells), A549 (human lung tumor cells), MRC-5 (non-tumor human lung cells), A2780 (human ovarian carcinoma cells), and A2780cis (cisplatin-resistant human ovarian carcinoma cells), was evaluated by the MTT colorimetric assay. For the tumor cell lines tested, the complexes showed good anticancer activities. The results showed that in general the complexes had lower IC50 values than free curcumin and the precursors [PdCl2(P-P)]. IC50 results obtained for the A1-A5 complexes, in the MCF-7 cell line, are similar to those that had already been observed for some Pd/bipy/curcumin complexes. In the MDA-MB-231 cell line, complexes A1 and A5 stood out, with their lowest IC50 values, around 5 μmol L-1, and the complexes appeared to be more active (lower IC50 values) against the ovarian cell lines. Complex A1 was 23 and 22-fold more cytotoxic than cisplatin, against the A2780 and A2780cis cells, respectively. The complex A1 was studied on A2780cis cells and it was found that this complex inhibits colony formation and induces cell cycle arrest in the sub-G1 phase in a concentration-dependent manner and leads to cell death by apoptosis. The DCFDA assay revealed a potent ROS induction for complex A1.
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Affiliation(s)
- Jocely L Dutra
- Departamento de Química, Universidade Federal de São Carlos - UFSCar, CP 676, CEP 13561-901, São Carlos, SP, Brazil.
- Departamento de Química, Universidade Federal do Amazonas - UFAM, CEP 69077-000, Itacoatiara, AM, Brazil
| | - João Honorato
- Instituto de Química, Universidade de São Paulo - USP, CEP 05508-900, São Paulo, SP, Brazil
| | - Angélica Graminha
- Departamento de Química, Universidade Federal de São Carlos - UFSCar, CP 676, CEP 13561-901, São Carlos, SP, Brazil.
| | - Carlos André F Moraes
- Departamento de Química, Universidade Federal de São Carlos - UFSCar, CP 676, CEP 13561-901, São Carlos, SP, Brazil.
| | - Kleber T de Oliveira
- Departamento de Química, Universidade Federal de São Carlos - UFSCar, CP 676, CEP 13561-901, São Carlos, SP, Brazil.
| | - Marcia R Cominetti
- Departamento de Gerontologia, Universidade Federal de São Carlos - UFSCar, CP 676, 13561-901, São Carlos, SP, Brazil
| | - Eduardo E Castellano
- Instituto de Física de São Carlos, Universidade de São Paulo - USP, CP 369, CEP 13560-970, São Carlos, SP, Brazil
| | - Alzir A Batista
- Departamento de Química, Universidade Federal de São Carlos - UFSCar, CP 676, CEP 13561-901, São Carlos, SP, Brazil.
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Arenaza-Corona A, Obregón-Mendoza MA, Meza-Morales W, Ramírez-Apan MT, Nieto-Camacho A, Toscano RA, Pérez-González LL, Sánchez-Obregón R, Enríquez RG. The Homoleptic Curcumin-Copper Single Crystal (ML 2): A Long Awaited Breakthrough in the Field of Curcumin Metal Complexes. Molecules 2023; 28:6033. [PMID: 37630284 PMCID: PMC10458717 DOI: 10.3390/molecules28166033] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 08/01/2023] [Accepted: 08/09/2023] [Indexed: 08/27/2023] Open
Abstract
The first single crystal structure of the homoleptic copper (II) ML2 complex (M=Cu (II), L = curcumin) was obtained and its structure was elucidated by X-ray diffraction showing a square planar geometry, also confirmed by EPR. The supramolecular arrangement is supported by C-H···O interactions and the solvent (MeOH) plays an important role in stabilizing the crystal packing Crystallinity was additionally assessed by XRD patterns. The log P value of the complex (2.3 ± 0.15) was determined showing the improvement in water solubility. The cytotoxic activity of the complex against six cancer cell lines substantially surpasses that of curcumin itself, and it is particularly selective against leukemia (K562) and human glioblastoma (U251) cell lines, with similar antioxidant activity to BHT. This constitutes the first crystal structure of pristine curcumin complexed with a metal ion.
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Affiliation(s)
- Antonino Arenaza-Corona
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico; (A.A.-C.); (M.A.O.-M.); (M.T.R.-A.); (A.N.-C.); (R.A.T.); (L.L.P.-G.); (R.S.-O.)
| | - Marco A. Obregón-Mendoza
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico; (A.A.-C.); (M.A.O.-M.); (M.T.R.-A.); (A.N.-C.); (R.A.T.); (L.L.P.-G.); (R.S.-O.)
| | - William Meza-Morales
- Department of Chemical Engineering, University of Puerto Rico-Mayaguez, Mayagüez, PR 00680, USA;
| | - María Teresa Ramírez-Apan
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico; (A.A.-C.); (M.A.O.-M.); (M.T.R.-A.); (A.N.-C.); (R.A.T.); (L.L.P.-G.); (R.S.-O.)
| | - Antonio Nieto-Camacho
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico; (A.A.-C.); (M.A.O.-M.); (M.T.R.-A.); (A.N.-C.); (R.A.T.); (L.L.P.-G.); (R.S.-O.)
| | - Rubén A. Toscano
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico; (A.A.-C.); (M.A.O.-M.); (M.T.R.-A.); (A.N.-C.); (R.A.T.); (L.L.P.-G.); (R.S.-O.)
| | - Leidys L. Pérez-González
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico; (A.A.-C.); (M.A.O.-M.); (M.T.R.-A.); (A.N.-C.); (R.A.T.); (L.L.P.-G.); (R.S.-O.)
| | - Rubén Sánchez-Obregón
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico; (A.A.-C.); (M.A.O.-M.); (M.T.R.-A.); (A.N.-C.); (R.A.T.); (L.L.P.-G.); (R.S.-O.)
| | - Raúl G. Enríquez
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico; (A.A.-C.); (M.A.O.-M.); (M.T.R.-A.); (A.N.-C.); (R.A.T.); (L.L.P.-G.); (R.S.-O.)
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Antioxidant conjugated metal complexes and their medicinal applications. VITAMINS AND HORMONES 2023; 121:319-353. [PMID: 36707139 DOI: 10.1016/bs.vh.2022.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Antioxidants are naturally available and man-made substances have the ability to protect cells from damage due to a number of intracellular redox activities. Moreover, Antioxidants such as α-lipoic acid, curcumin and catechin are good anticancer agents. In recent years, the usage of metal complexes as therapeutic agents is gaining importance due to their useful biological properties. Most of the metal ions act as the essential components in building drug molecules that serve as medicines for cancer and neurodegenerative diseases. In particular, metals like copper, gold, ruthenium, and platinum have adequate anticancer properties at both micro- and nano-levels. Hence, conjugation of antioxidants with metals and metal-based compounds results in hybrid bioactive materials with improved anticancer properties. In this chapter, medicinal applications of antioxidant conjugated metal complexes are reviewed and discussed.
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Banaspati A, Ramu V, Raza MK, Goswami TK. Copper(ii) curcumin complexes for endoplasmic reticulum targeted photocytotoxicity. RSC Adv 2022; 12:30722-30733. [PMID: 36349155 PMCID: PMC9606729 DOI: 10.1039/d2ra04813b] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 10/01/2022] [Indexed: 08/10/2023] Open
Abstract
Three copper(ii) complexes viz. [Cu(cur)(L)(ClO4)] (1-3), where Hcur is curcumin and L is 1,10-phenanthroline (phen, 1), dipyrido[3,2-d:2',3'-f]quinoxaline (dpq, 2), or dipyrido[3,2-a:2',3'-c]phenazine (dppz, 3) were synthesized, fully characterized by various physicochemical methods and evaluated for their light-assisted chemotherapeutic potential. The complexes [Cu(acac)(L)(ClO4)] (4-6), where Hacac is acetylacetone and L is phen (in 4), dpq (in 5) and dppz (in 6), were synthesized and used as controls. The solid state structures of complexes 4 and 5 were determined by single crystal X-ray diffraction. The curcumin complexes (1-3) were redox inactive at the copper centre, whereas the acetylacetonato complexes (4-6) displayed a Cu(ii)/Cu(i) couple at ∼0.1 V vs. Ag/AgCl reference electrode in DMF. Complexes 1-3 showed an intense curcumin-based band at ∼440 nm in DMF-Tris-HCl buffer (pH = 7.2) (1 : 9 v/v) which masks the copper based d-d band. The complexes bind to human serum albumin (HSA) with moderate efficacy. They also displayed significant binding affinity for calf-thymus (CT) DNA. The lipophilic curcumin complexes show remarkable visible light induced cytotoxicity (IC50 = ∼4 μM) with high phototoxic indices (PI) with low dark toxicity in human cervical carcinoma (HeLa) and human lung carcinoma (A549) cells. The corresponding acetylacetonato controls (4-6) did not show significant cytotoxicity in the dark or light. DCFDA and annexin V-FITC/PI assays using flow cytometry confirm the induction of significant apoptosis in cancer cells via generation of cytotoxic reactive oxygen species upon photoactivation. Confocal microscopic images using complex 3 demonstrate localization of the complexes predominantly in the endoplasmic reticulum of HeLa cells.
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Affiliation(s)
- Atrayee Banaspati
- Department of Chemistry, Gauhati University Guwahati 781014 Assam India
| | - Vanitha Ramu
- Department of Inorganic and Physical Chemistry, Indian Institute of Science Bangalore 560012 India
| | - Md Kausar Raza
- Department of Inorganic and Physical Chemistry, Indian Institute of Science Bangalore 560012 India
| | - Tridib K Goswami
- Department of Chemistry, Gauhati University Guwahati 781014 Assam India
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Vyalba FY, Ivantsova AV, Zhdanova KA, Usachev MN, Gradova MA, Bragina NA. Synthesis of conjugates of 5,15-disubstituted aminoporphyrins and terpyridine derivatives with potential chelating properties. MENDELEEV COMMUNICATIONS 2022. [DOI: 10.1016/j.mencom.2022.09.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Multitask Quantum Study of the Curcumin-Based Complex Physicochemical and Biological Properties. Int J Mol Sci 2022; 23:ijms23052832. [PMID: 35269972 PMCID: PMC8910981 DOI: 10.3390/ijms23052832] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 01/14/2022] [Accepted: 01/29/2022] [Indexed: 11/17/2022] Open
Abstract
Density functional theory (DFT), time-dependent density functional theory (TDDFT), quantum theory of atoms in molecules (QTAIM), and extended transition state natural orbitals for chemical valence (ETS-NOCV) have all been used to investigate the physicochemical and biological properties of curcumin and three complexes, i.e., Cur-M (M = Ni, Cu, and Mg). Based on DFT calculations, the enolic form (Cur-Enol) is more stable than the anti-diketone form (Cur-Anti diketone) favored for complexation. This enolic form stability was explained by the presence of three intramolecular hydrogen bonds according to the QTAIM analysis. Furthermore, the ETS-NOCV technique revealed that the enolic form had more significant antioxidant activity compared with the anti-diketone form. The calculations from the COnductor-like Screening MOdel for Realistic Solvents (COSMO-RS) showed that the dimethyl sulfoxide (DMSO) solvent could dissolve all the curcumin tautomers Cur-Enol, Cur-Anti-diketone and Cur-Cu, Cur-Mg, and Cur-Ni complexes in contrast to benzene, acetone, octanol, ethanol, methanol, and water. Furthermore, except for Cur-Mg, which had a relatively low solubility (14 g/L), all complexes were insoluble in water. Cur-Anti-diketone was considerably more soluble than Cur-Enol in the examined solvents.
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Upadhyay A, Kundu P, Ramu V, Kondaiah P, Chakravarty AR. BODIPY-Tagged Platinum(II) Curcumin Complexes for Endoplasmic Reticulum-Targeted Red Light PDT. Inorg Chem 2022; 61:1335-1348. [PMID: 34990135 DOI: 10.1021/acs.inorgchem.1c02745] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
[Pt(RB)(Cur)]NO3 (RBC), [Pt(IRB)(Cur)]NO3 (IRBC), and [Pt(L)(Cur)]NO3 (PBC), where HCur is curcumin, L is 1-benzyl-2-(2-pyridyl)benzimidazole, and RB and IRB are red-light-active non-iodo and diiodo-BODIPY tagged to L, respectively, were synthesized and characterized, and their anticancer activities were studied (BODIPY, boron-dipyrromethene). RBC and IRBC displayed BODIPY-centered absorption bands within 615-635 nm along with the respective curcumin bands at 445 and 492 nm in 10% dimethyl sulfoxide (DMSO)-Dulbecco's phosphate-buffered saline (DPBS). Emission bands were observed at 723 and 845 nm for RBC and IRBC, respectively, in 10% DMSO-DPBS. RBC (ΦΔ, 0.27) and IRBC (ΦΔ, 0.40) generated singlet oxygen in red light (λ = 642 nm) as evidenced from 1,3-diphenylisobenzofuran (DPBF) titrations. The formation of 1O2 from BODIPY and HO• from the curcumin was evidenced from the mechanistic pUC19 DNA photocleavage studies. The BODIPY complexes showed photocytotoxicity in A549, HeLa, and MDA-MB-231 cells while being less toxic in the dark [IC50: 1.3-6.9 μM, red light; 7.2-12.8 μM, 400-700 nm visible light]. The emissive RBC displayed localization in the endoplasmic reticulum (ER). Apoptotic cell death was evidenced from the Annexin-V/fluorescein isothiocyanate (FITC)/propidium iodide (PI) assay and green fluorescence in red light in the Fluo-4 AM assay due to ER stress, and mitochondrial dysfunction was evidenced from the 5,5,6,6'-tetrachloro-1,1',3,3'-tetraethylbenzimidazolylcarbocyanine iodide (JC-1) assay in A549 cells.
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Synthetic approaches for BF2-containing adducts of outstanding biological potential. A review. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2021.103528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Halevas E, Arvanitidou M, Mavroidi B, Hatzidimitriou AG, Politopoulos K, Alexandratou E, Pelecanou M, Sagnou M. A novel curcumin gallium complex as photosensitizer in photodynamic therapy: Synthesis, structural and physicochemical characterization, photophysical properties and in vitro studies against breast cancer cells. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130485] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Dasari S, Singh S, Abbas Z, Sivakumar S, Patra AK. Luminescent lanthanide(III) complexes of DTPA-bis(amido-phenyl-terpyridine) for bioimaging and phototherapeutic applications. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 256:119709. [PMID: 33823402 DOI: 10.1016/j.saa.2021.119709] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 01/31/2021] [Accepted: 03/10/2021] [Indexed: 06/12/2023]
Abstract
We report here a series of coordinatively-saturated and thermodynamically stable luminescent [Ln(dtntp)(H2O)] [Ln(III) = Eu (1), Tb (2), Gd (3), Sm (4) and Dy (5)] complexes using an aminophenyl-terpyridine appended-DTPA (dtntp) chelating ligand as cell imaging and photocytotoxic agents. The N,N″-bisamide derivative of H5DTPA named as dtntp is based on 4'-(4-aminophenyl)-2,2':6',2″-terpyridine conjugated to diethylenetriamine-N,N',N″-pentaacetic acid. The structure, physicochemical properties, detailed photophysical aspects, interaction with DNA and serum proteins, and photocytotoxicity were studied. The intrinsic luminescence of Eu(III) and Tb(III) complexes due to f → f transitions used to evaluate their cellular uptake and distribution in cancer cells. The solid-state structure of [Eu(dtntp)(DMF)] (1·DMF) shows a discrete mononuclear molecule with nine-coordinated {EuN3O6} distorted tricapped-trigonal prism (TTP) coordination geometry around the Eu(III). The {EuN3O6} core results from three nitrogen atoms and three carboxylate oxygen atoms, and two carbonyl oxygen atoms of the amide groups of dtntp ligand. The ninth coordination site is occupied by an oxygen atom of DMF as a solvent from crystallization. The designed probes have two aromatic pendant phenyl-terpyridine (Ph-tpy) moieties as photo-sensitizing antennae to impart the desirable optical properties for cellular imaging and photocytotoxicity. The photostability, coordinative saturation, and energetically rightly poised triplet states of dtntp ligand allow the efficient energy transfer (ET) from Ph-tpy to the emissive excited states of the Eu(III)/Tb(III), makes them luminescent cellular imaging probes. The Ln(III) complexes show significant binding tendency to DNA (K ~ 104 M-1), and serum proteins (BSA and HSA) (K ~ 105 M-1). The luminescent Eu(III) (1) and Tb(III) (2) complexes were utilized for cellular internalization and cytotoxicity studies due to their optimal photophysical properties. The cellular uptake studies using fluorescence imaging displayed intracellular (cytosolic and nuclear) localization in cancer cells. The complexes 1 and 2 displayed significant photocytotoxicity in HeLa cells. These results offer a modular design strategy with further scope to utilize appended N,N,N-donor tpy moiety for developing light-responsive luminescent Ln(III) bioprobes for theranostic applications.
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Affiliation(s)
- Srikanth Dasari
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
| | - Swati Singh
- Department of Chemical Engineering and Center for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
| | - Zafar Abbas
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
| | - Sri Sivakumar
- Department of Chemical Engineering and Center for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
| | - Ashis K Patra
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India.
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Prasad S, DuBourdieu D, Srivastava A, Kumar P, Lall R. Metal-Curcumin Complexes in Therapeutics: An Approach to Enhance Pharmacological Effects of Curcumin. Int J Mol Sci 2021; 22:ijms22137094. [PMID: 34209461 PMCID: PMC8268053 DOI: 10.3390/ijms22137094] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/22/2021] [Accepted: 06/24/2021] [Indexed: 12/13/2022] Open
Abstract
Curcumin, an active component of the rhizome turmeric, has gained much attention as a plant-based compound with pleiotropic pharmacological properties. It possesses anti-inflammatory, antioxidant, hypoglycemic, antimicrobial, neuroprotective, and immunomodulatory activities. However, the health-promoting utility of curcumin is constrained due to its hydrophobic nature, water insolubility, poor bioavailability, rapid metabolism, and systemic elimination. Therefore, an innovative stride was taken, and complexes of metals with curcumin have been synthesized. Curcumin usually reacts with metals through the β-diketone moiety to generate metal–curcumin complexes. It is well established that curcumin strongly chelates several metal ions, including boron, cobalt, copper, gallium, gadolinium, gold, lanthanum, manganese, nickel, iron, palladium, platinum, ruthenium, silver, vanadium, and zinc. In this review, the pharmacological, chemopreventive, and therapeutic activities of metal–curcumin complexes are discussed. Metal–curcumin complexes increase the solubility, cellular uptake, and bioavailability and improve the antioxidant, anti-inflammatory, antimicrobial, and antiviral effects of curcumin. Metal–curcumin complexes have also demonstrated efficacy against various chronic diseases, including cancer, arthritis, osteoporosis, and neurological disorders such as Alzheimer’s disease. These biological activities of metal–curcumin complexes were associated with the modulation of inflammatory mediators, transcription factors, protein kinases, antiapoptotic proteins, lipid peroxidation, and antioxidant enzymes. In addition, metal–curcumin complexes have shown usefulness in biological imaging and radioimaging. The future use of metal–curcumin complexes may represent a new approach in the prevention and treatment of chronic diseases.
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Affiliation(s)
- Sahdeo Prasad
- Research and Development Laboratory, Noble Pharma LLC, Menomonie, WI 54751, USA
- Correspondence: or ; Tel.: +1-715-231-1234
| | - Dan DuBourdieu
- Research and Development Laboratory, Vets-Plus Inc., Menomonie, WI 54751, USA; (D.D.); (A.S.); (P.K.); (R.L.)
| | - Ajay Srivastava
- Research and Development Laboratory, Vets-Plus Inc., Menomonie, WI 54751, USA; (D.D.); (A.S.); (P.K.); (R.L.)
| | - Prafulla Kumar
- Research and Development Laboratory, Vets-Plus Inc., Menomonie, WI 54751, USA; (D.D.); (A.S.); (P.K.); (R.L.)
| | - Rajiv Lall
- Research and Development Laboratory, Vets-Plus Inc., Menomonie, WI 54751, USA; (D.D.); (A.S.); (P.K.); (R.L.)
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Theoretical study of the impact of metal complexation on the reactivity properties of Curcumin and its diacetylated derivative as antioxidant agents. J Mol Model 2021; 27:192. [PMID: 34057657 DOI: 10.1007/s00894-021-04768-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Accepted: 04/20/2021] [Indexed: 10/21/2022]
Abstract
The chemical behavior of Curcumin and its derivatives as antioxidant and metal chelator has become the subject of intense experimental research. In this work, a theoretical study was conducted with the aim to investigate whether the acetylation of the aromatic group in Curcumin, which makes it more lipophilic, will alter its biological activities. Also, we selected from the literature metal complexes of Curcumin and its diacetylated derivative with Ga(III) and In(III), in order to discriminate the molecular active sites of the investigated molecules in which the oxidative process occurs and to obtain information about their antioxidation mechanisms. The geometrical structures and electronic properties of these compounds have been obtained using the density functional theory (DFT) method, known for its accurate results. As our other objective is to understand the factors driving biological behavior of all the studied compounds as well as the impact of the metal complexation of Curcumin and its diacetylated derivative, we provided here evidences to explain experimental observations from a molecular reactivity perspective.
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Sahoo S, Raghavan A, Kumar A, Nandi D, Chakravarty AR. Biotin‐Appended Iron(III) Complexes of Curcumin for Targeted Photo‐Chemotherapy. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202001174] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Somarupa Sahoo
- Department of Inorganic and Physical Chemistry Indian Institute of Science Bangalore 560012 Karnataka India
| | - Abinaya Raghavan
- Department of Biochemistry Indian Institute of Science Bangalore 560012 Karnataka India
| | - Arun Kumar
- Department of Inorganic and Physical Chemistry Indian Institute of Science Bangalore 560012 Karnataka India
| | - Dipankar Nandi
- Department of Biochemistry Indian Institute of Science Bangalore 560012 Karnataka India
| | - Akhil R. Chakravarty
- Department of Inorganic and Physical Chemistry Indian Institute of Science Bangalore 560012 Karnataka India
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Pettinari R, Marchetti F, Tombesi A, Duan F, Zhou L, Messori L, Giacomelli C, Marchetti L, Trincavelli ML, Marzo T, La Mendola D, Balducci G, Alessio E. Ruthenium(II) 1,4,7-trithiacyclononane complexes of curcumin and bisdemethoxycurcumin: Synthesis, characterization, and biological activity. J Inorg Biochem 2021; 218:111387. [PMID: 33721720 DOI: 10.1016/j.jinorgbio.2021.111387] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 01/21/2021] [Accepted: 02/02/2021] [Indexed: 12/29/2022]
Abstract
Two cationic ruthenium(II) 1,4,7-trithiacyclononane ([9]aneS3) complexes of curcumin (curcH) and bisdemethoxycurcumin (bdcurcH), namely [Ru(curc)(dmso-S)([9]aneS3)]Cl (1) and [Ru(bdcurc)(dmso-S)([9]aneS3)]Cl (2) were prepared from the [RuCl2(dmso-S)([9]-aneS3)] precursor and structurally characterized, both in solution and in the solid state by X-ray crystallography. The corresponding PTA complexes [Ru(curc)(PTA)([9]aneS3)]Cl (3) and [Ru(bdcurc)(PTA)([9]aneS3)]Cl (4) have been also synthesized and characterized (PTA = 1,3,5-triaza-7-phosphaadamantane). Bioinorganic studies relying on mass spectrometry were performed on complexes 1-4 to assess their interactions with the model protein lysozyme. Overall, a rather limited reactivity with lysozyme was highlighted accompanied by a modest cytotoxic potency against three representative cancer cell lines. The moderate pharmacological activity is likely connected to the relatively high stability of these complexes.
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Affiliation(s)
- Riccardo Pettinari
- School of Pharmacy, University of Camerino, Via S. Agostino 1, 62032 Camerino, MC, Italy.
| | - Fabio Marchetti
- School of Science and Technology, University of Camerino, Via S. Agostino 1, 62032 Camerino, MC, Italy
| | - Alessia Tombesi
- School of Science and Technology, University of Camerino, Via S. Agostino 1, 62032 Camerino, MC, Italy
| | - Fenghe Duan
- School of Pharmacy, University of Camerino, Via S. Agostino 1, 62032 Camerino, MC, Italy
| | - Liming Zhou
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, Zhengzhou, 450002, PR China
| | - Luigi Messori
- Department of Chemistry, University of Florence, Via della Lastruccia 3-13, Sesto Fiorentino, Florence, Italy
| | - Chiara Giacomelli
- Department of Pharmacy, University of Pisa, Via Bonanno Pisano, 6, 56126, Pisa, Italy
| | - Laura Marchetti
- Department of Pharmacy, University of Pisa, Via Bonanno Pisano, 6, 56126, Pisa, Italy
| | | | - Tiziano Marzo
- Department of Pharmacy, University of Pisa, Via Bonanno Pisano, 6, 56126, Pisa, Italy
| | - Diego La Mendola
- Department of Pharmacy, University of Pisa, Via Bonanno Pisano, 6, 56126, Pisa, Italy
| | - Gabriele Balducci
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via L. Giorgieri 1, Trieste, Italy
| | - Enzo Alessio
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via L. Giorgieri 1, Trieste, Italy
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Sedykh AE, Kurth DG, Müller‐Buschbaum K. Phosphorescence Afterglow and Thermal Properties of [ScCl
3
(ptpy)] (ptpy: 4'‐phenyl‐2,2',6',2''‐terpyridine). Z Anorg Allg Chem 2021. [DOI: 10.1002/zaac.202000347] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Alexander E. Sedykh
- Institute of Inorganic and Analytical Chemistry Justus-Liebig-University Giessen Heinrich-Buff-Ring 17 35392 Giessen Germany
| | - Dirk G. Kurth
- Lehrstuhl für Chemische Technologie der Materialsynthese Julius-Maximilians-University Würzburg Röntgenring 11 97070 Würzburg Germany
| | - Klaus Müller‐Buschbaum
- Institute of Inorganic and Analytical Chemistry Justus-Liebig-University Giessen Heinrich-Buff-Ring 17 35392 Giessen Germany
- Center for Materials Research (LAMA) Justus-Liebig-University Giessen Heinrich-Buff-Ring 16 35392 Giessen Germany
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16
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DNA Intercalating Near-Infrared Luminescent Lanthanide Complexes Containing Dipyrido[3,2- a:2',3'- c]phenazine (dppz) Ligands: Synthesis, Crystal Structures, Stability, Luminescence Properties and CT-DNA Interaction. Molecules 2020; 25:molecules25225309. [PMID: 33203056 PMCID: PMC7697401 DOI: 10.3390/molecules25225309] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/09/2020] [Accepted: 11/09/2020] [Indexed: 11/30/2022] Open
Abstract
In order to create near-infrared (NIR) luminescent lanthanide complexes suitable for DNA-interaction, novel lanthanide dppz complexes with general formula [Ln(NO3)3(dppz)2] (Ln = Nd3+, Er3+ and Yb3+; dppz = dipyrido[3,2-a:2′,3′-c]phenazine) were synthesized, characterized and their luminescence properties were investigated. In addition, analogous compounds with other lanthanide ions (Ln = Ce3+, Pr3+, Sm3+, Eu3+, Tb3+, Dy3+, Ho3+, Tm3+, Lu3+) were prepared. All complexes were characterized by IR spectroscopy and elemental analysis. Single-crystal X-ray diffraction analysis of the complexes (Ln = La3+, Ce3+, Pr3+, Nd3+, Eu3+, Er3+, Yb3+, Lu3+) showed that the lanthanide’s first coordination sphere can be described as a bicapped dodecahedron, made up of two bidentate dppz ligands and three bidentate-coordinating nitrate anions. Efficient energy transfer was observed from the dppz ligand to the lanthanide ion (Nd3+, Er3+ and Yb3+), while relatively high luminescence lifetimes were detected for these complexes. In their excitation spectra, the maximum of the strong broad band is located at around 385 nm and this wavelength was further used for excitation of the chosen complexes. In their emission spectra, the following characteristic NIR emission peaks were observed: for a) Nd3+: 4F3/2 → 4I9/2 (870.8 nm), 4F3/2 → 4I11/2 (1052.7 nm) and 4F3/2 → 4I13/2 (1334.5 nm); b) Er3+: 4I13/2 → 4I15/2 (1529.0 nm) c) Yb3+: 2F5/2 → 2F7/2 (977.6 nm). While its low triplet energy level is ideally suited for efficient sensitization of Nd3+ and Er3+, the dppz ligand is considered not favorable as a sensitizer for most of the visible emitting lanthanide ions, due to its low-lying triplet level, which is too low for the accepting levels of most visible emitting lanthanides. Furthermore, the DNA intercalation ability of the [Nd(NO3)3(dppz)2] complex with calf thymus DNA (CT-DNA) was confirmed using fluorescence spectroscopy.
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Upadhyay A, Gautam S, Ramu V, Kondaiah P, Chakravarty AR. Photocytotoxic cancer cell-targeting platinum(ii) complexes of glucose-appended curcumin and biotinylated 1,10-phenanthroline. Dalton Trans 2020; 48:17556-17565. [PMID: 31748772 DOI: 10.1039/c9dt03490k] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Mixed-ligand platinum(ii) complexes, [Pt(phen)(pacac)](NO3) (1), [Pt(phen)(cur)](NO3) (2), [Pt(bt-phen)(cur)](NO3) (3) and [Pt(phen)(scur)](NO3) (4), where phen is 1,10-phenanthroline, bt-phen is 5-biotin-1,10-phenanthroline, pacac is 1,3-diphenyl-1,3-propanedioate anion, Hcur is curcumin and Hscur is diglucosylcurcumin, were prepared, characterized and their anticancer activity studied. Complexes 2-4 showed absorption bands within 410-430 nm (ε, 2.1 × 104 to 2.8 × 104 M-1 cm-1) in 10% DMSO-DPBS (Dulbecco's phosphate-buffered saline) and emission bands near 530 nm (λex = 410-430 nm) with a fluorescence quantum yield (ΦF) value of ∼0.02. The curcumin complexes showed stability over a study period of 48 h. The photocytotoxicity was studied using human cervical HeLa, human liver HepG2, human breast cancer MDA-MB 231 and human lung adenocarcinoma A549 cancer cells along with human immortalized lung epithelial HPL1D as normal cells. Complexes 2-4 showed apoptotic photo-induced cell death in light of wavelength 400-700 nm (IC50, half maximal inhibitory concentration: 6-28 μM) by reactive oxygen species (ROS), while remaining inactive in the dark (IC50: 43-95 μM). The selectivity of the complexes 3 and 4 was enhanced significantly towards the cancer cells than towards the normal cells, thus making them targeted photochemotherapeutic agents. The ROS formation and mode of cell death were studied from 2',7'-dichlorofluorescein diacetate (DCFDA) and annexin-V/FITC (fluorescein isothiocyanate)-PI assays, respectively. Preferential nuclear and mitochondrial localization was evidenced from inductively coupled plasma mass spectrometry (ICP-MS) studies.
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Affiliation(s)
- Aarti Upadhyay
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India.
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19
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Sedykh AE, Kurth DG, Müller‐Buschbaum K. Two Series of Lanthanide Coordination Polymers and Complexes with 4′‐Phenylterpyridine and their Luminescence Properties. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900872] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Alexander E. Sedykh
- Institute of Inorganic and Analytical Chemistry Justus‐Liebig‐University Giessen Heinrich‐Buff‐Ring 17 35392 Giessen Germany
- Institute of Inorganic Chemistry Julius‐Maximilians‐University Würzburg Am Hubland 97074 Würzburg Germany
| | - Dirk G. Kurth
- Lehrstuhl für Chemische Technologie der Materialsynthese Julius‐Maximilians‐University Würzburg Röntgenring 11 97070 Würzburg Germany
| | - Klaus Müller‐Buschbaum
- Institute of Inorganic and Analytical Chemistry Justus‐Liebig‐University Giessen Heinrich‐Buff‐Ring 17 35392 Giessen Germany
- Institute of Inorganic Chemistry Julius‐Maximilians‐University Würzburg Am Hubland 97074 Würzburg Germany
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20
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Grabner S, Modec B. Zn(II) Curcuminate Complexes with 2,2'-bipyridine and Carboxylates. Molecules 2019; 24:E2540. [PMID: 31336808 PMCID: PMC6680645 DOI: 10.3390/molecules24142540] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 07/09/2019] [Accepted: 07/09/2019] [Indexed: 01/08/2023] Open
Abstract
Two novel zinc(II) compounds with curcuminate (abbreviated as cur-), [Zn(CH3COO)(cur)(bpy)](1)·CH3OH·2H2O (bpy = 2,2'-bipyridine) and [Zn(PhCOO)(cur)(bpy)] (2)·CH3OH, have been synthesized and characterized. Their composition has been determined by single-crystal X-ray structure analysis. Complexes 1 and 2 are similar: in both a five-fold coordination environment of zinc(II) consists of a monodentate carboxylate, a chelating bidentate 2,2'-bipyridine, and curcuminate, which is bound via a deprotonated 1,3-dione moiety. In 1, 2,2'-bipyridine nitrogen atoms and curcuminate oxygen atoms form the base of a square pyramid, whereas the acetate oxygen occupies its apex. The O3N2 donor set in 2 defines a polyhedron which more closely resembles a trigonal bipyramid. The packing in the crystal lattices of both compounds is governed by hydrogen-bonds. Complexes 1 and 2 display higher stability than curcumin in buffered media at pH = 7.0, however, the degradation of coordinated cur- is comparable to that of yellow pigment curcumin (curH) when the pH is raised to 7.2. Both complexes 1 and 2 in DMSO exhibit fluorescence with Stokes shifts of 5367 and 4634 cm-1, respectively.
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Affiliation(s)
- Sabina Grabner
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, 1000 Ljubljana, Slovenia.
| | - Barbara Modec
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, 1000 Ljubljana, Slovenia.
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21
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The progresses in curcuminoids-based metal complexes: especially in cancer therapy. Future Med Chem 2019; 11:1035-1056. [PMID: 31140861 DOI: 10.4155/fmc-2018-0190] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Curcuminoids (CURs), a series of derivatives in turmeric (Curcuma longa), are commonly discovered to control the deterioration of cancers. However, the physiochemical properties and the original side effects of many CURs complexes put barriers in their medical applications. To address them, the investigation of metal-based complexes with CURs is in progress. The complexes were summarized according to articles in recent years. The results showed that the complexes improved the physicochemical properties or therapeutic performances compared with pure CURs. Further, it is possible for the novel complexes to be applied in chemical detecting, paramagnetic-luminescent and bio-imaging fields. Therefore, the formation of the metal-based CURs complexes (MBCCs) is beneficial for the development of CURs especially in medical fields.
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22
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Cai LL, Hu YT, Li Y, Wang K, Zhang XQ, Muller G, Li XM, Wang GX. Solid-state luminescence properties, Hirshfeld surface analysis and DFT calculations of mononuclear lanthanide complexes (Ln = Eu III, Gd III, Tb III, Dy III) containing 4'-phenyl-2,2':6',2″-terpyridine. Inorganica Chim Acta 2019; 489:85-92. [PMID: 34079145 DOI: 10.1016/j.ica.2019.02.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Four mononuclear lanthanide complexes containing 4'-phenyl-2,2':6',2″-terpyridine (ptpy), [Ln(NO3)3(ptpy) (H2O)] (Ln = Eu (1), Gd (2), Tb (3), Dy (4)), were solvothermally synthesized and characterized via elemental analysis, infrared spectroscopy, thermogravimetric analysis, single-crystal X-ray diffraction, and powder X-ray diffraction. Hirshfeld surfaces and the solid-state luminescence properties of the complexes were investigated. The 3-D Hirshfeld surface and 2-D fingerprint plots show that the main interactions are the O H/H O intermolecular interactions in 1-4. Solid-state luminescence investigation reveals that GdIII complex 2 displays a ligand-centered emission and the EuIII, TbIII and DyIII complexes 1, 3 and 4 show the characteristic lanthanide-centered luminescence upon UV excitations. The EuIII and TbIII complexes exhibit red (CIE: 0.6549, 0.3447) and green (CIE: 0.3760, 0.5412) luminescence in the solid state with quantum yields of 16.8% and 0.8% and lifetimes of 0.545 and 0.043 ms, respectively. Density functional theory (DFT) calculations were conducted to unravel the HOMO-LUMO energy gaps of the structures of ptpy and complexes 1 and 3.
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Affiliation(s)
- Li Ling Cai
- Key Laboratory of Electrochemical and Magneto-Chemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, PR China
| | - Ya Tao Hu
- Key Laboratory of Electrochemical and Magneto-Chemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, PR China
| | - Yan Li
- Key Laboratory of Electrochemical and Magneto-Chemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, PR China
| | - Kai Wang
- Key Laboratory of Electrochemical and Magneto-Chemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, PR China
| | - Xiu Qing Zhang
- Key Laboratory of Electrochemical and Magneto-Chemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, PR China
| | - Gilles Muller
- Department of Chemistry, San José State University, One Washington Square, San José, CA 95192-0101, USA
| | - Xue Ming Li
- Key Laboratory of Electrochemical and Magneto-Chemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, PR China
| | - Gui Xia Wang
- Key Laboratory of Electrochemical and Magneto-Chemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, PR China
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23
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Near-infrared excited cooperative upconversion in luminescent Ytterbium(ΙΙΙ) bioprobes as light-responsive theranostic agents. Eur J Med Chem 2019; 163:546-559. [DOI: 10.1016/j.ejmech.2018.12.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 12/03/2018] [Accepted: 12/04/2018] [Indexed: 12/27/2022]
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24
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Cabral Campello MP, Palma E, Correia I, Paulo PMR, Matos A, Rino J, Coimbra J, Pessoa JC, Gambino D, Paulo A, Marques F. Lanthanide complexes with phenanthroline-based ligands: insights into cell death mechanisms obtained by microscopy techniques. Dalton Trans 2019; 48:4611-4624. [DOI: 10.1039/c9dt00640k] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The biological properties of four lanthanide complexes with phenanthroline derivatives in ovarian cancer cells.
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25
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Qin QP, Wang ZF, Tan MX, Huang XL, Zou HH, Zou BQ, Shi BB, Zhang SH. Complexes of lanthanides(iii) with mixed 2,2′-bipyridyl and 5,7-dibromo-8-quinolinoline chelating ligands as a new class of promising anti-cancer agents. Metallomics 2019; 11:1005-1015. [DOI: 10.1039/c9mt00037b] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
MeOMBrQ-Ho induced HeLa cell apoptosis was mediated by inhibition of telomerase activity and dysfunction of mitochondria. Remarkably, MeOMBrQ-Ho obviously inhibited HeLa xenograft tumor growth in vivo.
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Affiliation(s)
- Qi-Pin Qin
- Guangxi Key Lab of Agricultural Resources Chemistry and Biotechnology
- College of Chemistry and Food Science
- Yulin Normal University
- Yulin 537000
- P. R. China
| | - Zhen-Feng Wang
- Guangxi Key Lab of Agricultural Resources Chemistry and Biotechnology
- College of Chemistry and Food Science
- Yulin Normal University
- Yulin 537000
- P. R. China
| | - Ming-Xiong Tan
- Guangxi Key Lab of Agricultural Resources Chemistry and Biotechnology
- College of Chemistry and Food Science
- Yulin Normal University
- Yulin 537000
- P. R. China
| | - Xiao-Ling Huang
- Guangxi Key Lab of Agricultural Resources Chemistry and Biotechnology
- College of Chemistry and Food Science
- Yulin Normal University
- Yulin 537000
- P. R. China
| | - Hua-Hong Zou
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources
- School of Chemistry and Pharmacy
- Guangxi Normal University
- Guilin 541004
- P. R. China
| | - Bi-Qun Zou
- Department of Chemistry
- Guilin Normal College
- Gulin 541001
- P. R. China
| | - Bei-Bei Shi
- Guangxi Key Lab of Agricultural Resources Chemistry and Biotechnology
- College of Chemistry and Food Science
- Yulin Normal University
- Yulin 537000
- P. R. China
| | - Shu-Hua Zhang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- China
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26
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Halevas E, Papadopoulos TA, Swanson CH, Smith GC, Hatzidimitriou A, Katsipis G, Pantazaki A, Sanakis I, Mitrikas G, Ypsilantis K, Litsardakis G, Salifoglou A. In-depth synthetic, physicochemical and in vitro biological investigation of a new ternary V(IV) antioxidant material based on curcumin. J Inorg Biochem 2018; 191:94-111. [PMID: 30476714 DOI: 10.1016/j.jinorgbio.2018.10.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 10/21/2018] [Accepted: 10/23/2018] [Indexed: 01/28/2023]
Abstract
Curcumin is a natural product with a broad spectrum of beneficial properties relating to pharmaceutical applications, extending from traditional remedies to modern cosmetics. The biological activity of such pigments, however, is limited by their solubility and bioavailability, thereby necessitating new ways of achieving optimal tissue cellular response and efficacy as drugs. Metal ion complexation provides a significant route toward improvement of curcumin stability and biological activity, with vanadium being a representative such metal ion, amply encountered in biological systems and exhibiting exogenous bioactivity through potential pharmaceuticals. Driven by the need to optimally increase curcumin bioavailability and bioactivity through complexation, synthetic efforts were launched to seek out stable species, ultimately leading to the synthesis and isolation of a new ternary V(IV)-curcumin-(2,2'-bipyridine) complex. Physicochemical characterization (elemental analysis, FT-IR, Thermogravimetry (TGA), UV-Visible, NMR, ESI-MS, Fluorescence, X-rays) portrayed the solid-state and solution properties of the ternary complex. Pulsed-EPR spectroscopy, in frozen solutions, suggested the presence of two species, cis- and trans-conformers. Density Functional Theory (DFT) calculations revealed the salient features and energetics of the two conformers, thereby complementing EPR spectroscopy. The well-described profile of the vanadium species led to its in vitro biological investigation involving toxicity, cell metabolism inhibition in S. cerevisiae cultures, Reactive Oxygen Species (ROS)-suppressing capacity, lipid peroxidation, and plasmid DNA degradation. A multitude of bio-assays and methodologies, in comparison to free curcumin, showed that it exhibits its antioxidant potential in a concentration-dependent fashion, thereby formulating a bioreactivity profile supporting development of new efficient vanado-pharmaceuticals, targeting (extra)intra-cellular processes under (patho)physiological conditions.
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Affiliation(s)
- E Halevas
- Laboratory of Inorganic Chemistry and Advanced Materials, Department of Chemical Engineering, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece; Laboratory of Materials for Electrotechnics, Department of Electrical and Computer Engineering, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - T A Papadopoulos
- Department of Natural Sciences, Thornton Science Park, University of Chester, Chester, CH3 4NU, UK
| | - C H Swanson
- Department of Natural Sciences, Thornton Science Park, University of Chester, Chester, CH3 4NU, UK
| | - G C Smith
- Department of Natural Sciences, Thornton Science Park, University of Chester, Chester, CH3 4NU, UK
| | - A Hatzidimitriou
- Laboratory of Inorganic Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - G Katsipis
- Laboratory of Biochemistry, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - A Pantazaki
- Laboratory of Biochemistry, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - I Sanakis
- Institute of Nanoscience and Nanotechnology, N.C.S.R. "Demokritos", Aghia Paraskevi 15310, Attiki, Greece
| | - G Mitrikas
- Institute of Nanoscience and Nanotechnology, N.C.S.R. "Demokritos", Aghia Paraskevi 15310, Attiki, Greece
| | - K Ypsilantis
- Department of Chemistry, University of Ioannina, Ioannina 45110, Greece
| | - G Litsardakis
- Laboratory of Materials for Electrotechnics, Department of Electrical and Computer Engineering, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - A Salifoglou
- Laboratory of Inorganic Chemistry and Advanced Materials, Department of Chemical Engineering, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece.
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27
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Zhao ZP, Zheng K, Li HR, Zeng CH, Zhong S, Ng SW, Zheng Y, Chen Y. Structure variation and luminescence of 3D, 2D and 1D lanthanide coordination polymers with 1,3-adamantanediacetic acid. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.06.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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28
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Heras BL, Amesty Á, Estévez-Braun A, Hortelano S. Metal Complexes of Natural Product Like-compounds with Antitumor Activity. Anticancer Agents Med Chem 2018; 19:48-65. [PMID: 29692264 DOI: 10.2174/1871520618666180420165821] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 03/17/2018] [Accepted: 03/20/2018] [Indexed: 01/17/2023]
Abstract
Cancer continues to be one of the major causes of death worldwide. Despite many advances in the understanding of this complex disease, new approaches are needed to improve the efficacy of current therapeutic treatments against aggressive tumors. Natural products are one of the most consistently successful sources of drug leads. In recent decades, research activity into the clinical potential of this class of compounds in cancer has increased. Furthermore, a highly promising field is the use of metals and their complexes in the design and development of metal-based drugs for the treatment of cancer. Metal complexes offer unique opportunities due to their ability to alter pharmacology, improving the efficacy and/or reducing the negative side effects of drug molecules. In addition, transition metals as copper, iron, and manganese, among others, can interact with active sites of enzymes, playing important roles in multiple biological processes. Thus, these complexes not only possess higher activities but also reach their targets more efficiently. This review article highlights recent advances on the emerging and expanding field of metal-based drugs. The emphasis is on new therapeutic strategies consisting of metal complexes with natural product like-compounds as a starting point for the rational design of new antitumor agents.
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Affiliation(s)
- Beatriz L Heras
- Departamento de Farmacologia. Facultad de Farmacia, Universidad Complutense de Madrid (UCM), Madrid, Spain
| | - Ángel Amesty
- Departamento de Quimica Organica, Instituto Universitario de Bio-Organica Antonio Gonzalez, Universidad de La Laguna. Avda. Astrofisico Fco. Sanchez 2. 38206. La Laguna, Tenerife, Spain
| | - Ana Estévez-Braun
- Departamento de Quimica Organica, Instituto Universitario de Bio-Organica Antonio Gonzalez, Universidad de La Laguna. Avda. Astrofisico Fco. Sanchez 2. 38206. La Laguna, Tenerife, Spain
| | - Sonsoles Hortelano
- Unidad de Terapias Farmacologicas. Area de Genetica Humana. Instituto de Investigacion de Enfermedades Raras (IIER), Instituto de Salud Carlos III, Madrid, Spain
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29
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Lammer AD, Thiabaud G, Brewster JT, Alaniz J, Bender JA, Sessler JL. Lanthanide Texaphyrins as Photocatalysts. Inorg Chem 2018; 57:3458-3464. [PMID: 29498834 DOI: 10.1021/acs.inorgchem.8b00248] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Aaron D. Lammer
- Department of Chemistry, The University of Texas at Austin, 105 East 24th Street, Stop A5300, Austin, Texas 78712-1224, United States
| | - Grégory Thiabaud
- Department of Chemistry, The University of Texas at Austin, 105 East 24th Street, Stop A5300, Austin, Texas 78712-1224, United States
| | - James T. Brewster
- Department of Chemistry, The University of Texas at Austin, 105 East 24th Street, Stop A5300, Austin, Texas 78712-1224, United States
| | - Julie Alaniz
- Department of Chemistry, The University of Texas at Austin, 105 East 24th Street, Stop A5300, Austin, Texas 78712-1224, United States
| | - Jon A. Bender
- Department of Chemistry, The University of Texas at Austin, 105 East 24th Street, Stop A5300, Austin, Texas 78712-1224, United States
| | - Jonathan L. Sessler
- Department of Chemistry, The University of Texas at Austin, 105 East 24th Street, Stop A5300, Austin, Texas 78712-1224, United States
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Tabrizi L, Chiniforoshan H. New Ru II pincer complexes: synthesis, characterization and biological evaluation for photodynamic therapy. Dalton Trans 2018; 45:18333-18345. [PMID: 27805201 DOI: 10.1039/c6dt03502g] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Three new ruthenium(ii) complexes of NCN pincer and phenylcyanamide derivative ligands of the formula [Ru(L)(Ph2phen)(3,5-(NO2)2pcyd)], 1, [Ru(L)(Me2phen)(3,5-(NO2)2pcyd)], 2, and [Ru(L)(Cl2phen)(3,5-(NO2)2pcyd)], 3 (HL: 5-methoxy-1,3-bis(1-methyl-1H-benzo[d]imidazol-2-yl)benzene, 3,5-(NO2)2pcyd: 3,5-(NO2)2pcyd, Ph2phen: 4,7-diphenyl-1,10-phenanthroline, Me2phen: 4,7-dimethyl-1,10-phenanthroline, Cl2phen: 4,7-dichloro-1,10-phenanthroline) have been synthesized and studied as potential photosensitizers (PSs) in photodynamic therapy (PDT). The complexes exhibited promising 1O2 production quantum yields comparable with PSs available on the market. The DNA-binding interactions of the complexes with calf thymus DNA have been studied by absorption, emission, and viscosity measurements. All complexes cleave SC-DNA efficiently on photoactivation at 350 nm with the formation of singlet oxygen (1O2) and hydroxyl radicals (˙OH) in type-II and photoredox pathways. Complexes 1-3 showed very good uptake in cervical cancer cells (HeLa). The compounds studied were found to exhibit low toxicity against HeLa cells (IC50 > 300 μM) and, remarkably, on non-cancerous MRC-5 cells (IC50 > 100 μM) in the dark. However, 1 showed very promising behavior with an increment of about 90 times, in its cytotoxicity upon light illumination at 420 nm in addition to very good human plasma stability.
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Affiliation(s)
- Leila Tabrizi
- Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran.
| | - Hossein Chiniforoshan
- Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran.
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Effect of Curcumin-Nanoemulsion Associated with Photodynamic Therapy in Cervical Carcinoma Cell Lines. BIOMED RESEARCH INTERNATIONAL 2018; 2018:4057959. [PMID: 29581972 PMCID: PMC5822824 DOI: 10.1155/2018/4057959] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 12/04/2017] [Accepted: 12/12/2017] [Indexed: 12/17/2022]
Abstract
Cervical cancer is the fourth cause of cancer death in women. Curcumin has antineoplastic properties. Furthermore, curcumin may be used as a photosensitizing agent in Photodynamic Therapy. This study aimed to investigate the effects of Photodynamic Therapy in cellular viability using curcumin-nanoemulsion as a photosensitizing drug in cervical carcinoma cell lines. The empty nanoemulsion presented very low cytotoxicity in all cell lines analyzed. Additionally, the incubation with curcumin-nanoemulsion at 20 μM of curcumin showed more than 80% of cell viability for cell lines. Nanoemulsions were shown to be internalized inside cells by fluorescence microscopy and were observed in the intracellular environment for up to 36 hours after incubation with cell lines. In addition, after the Photodynamic Therapy we observed a high phototoxic effect of the curcumin-nanoemulsion with less than 5% of viable cells after irradiation. This was accompanied by an increase in caspase-3/caspase-7 activities after cell treatment with curcumin-nanoemulsion and Photodynamic Therapy, suggesting cell death by apoptosis. We conclude that the curcumin-nanoemulsion formulation behaves as a photosensitizing drug in Photodynamic Therapy and shows potential as an alternative treatment to cervical lesions using an endoscopic diode fiber laser setup for in situ activation or cavity activation using a diffuse fiber delivery system.
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Li Y, Gu Z, Zhang C, Li S, Zhang L, Zhou G, Wang S, Zhang J. Synthesis, characterization and ROS-mediated antitumor effects of palladium(II) complexes of curcuminoids. Eur J Med Chem 2017; 144:662-671. [PMID: 29289889 DOI: 10.1016/j.ejmech.2017.12.027] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 12/07/2017] [Accepted: 12/07/2017] [Indexed: 10/18/2022]
Abstract
Based on the synthesis of curcumin and its derivatives from aromatic aldehydes, a novel series of palladium(II) complexes with curcumin (or its derivatives) and 2,2'-bipyridine have been synthesized through a directed self-assembly approach that involves spontaneous deprotonation of the curcuminoid ligands in H2O/acetone solution. These complexes have been characterized by 1H (13C) NMR, HRMS and elemental analysis. Crystal structure of 3h has been determined by X-ray diffraction analysis. Their cytotoxicity was tested by MTT. The preliminary results showed that complexes 3d, 3f, 3h have significant inhibition on proliferation of three carcinoma cells such as MCF-7, HeLa and A549 cells, which were more active than cisplatin. Further mechanistic studies indicated that the tested complex 3h arrested the cell cycle in the S phase and can disrupted mitochondrial membrane potential and induced tumor cell apoptosis through reactive oxygen species (ROS)-dependent pathway.
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Affiliation(s)
- Yanci Li
- Key Laboratory of Chemical Biology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education, College of Chemistry & Environmental Science, Hebei University, Baoding 071002, China
| | - Zhenyu Gu
- Key Laboratory of Chemical Biology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education, College of Chemistry & Environmental Science, Hebei University, Baoding 071002, China
| | - Can Zhang
- Key Laboratory of Chemical Biology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education, College of Chemistry & Environmental Science, Hebei University, Baoding 071002, China
| | - Shenghui Li
- Key Laboratory of Chemical Biology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education, College of Chemistry & Environmental Science, Hebei University, Baoding 071002, China.
| | - Liang Zhang
- Key Laboratory of Chemical Biology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education, College of Chemistry & Environmental Science, Hebei University, Baoding 071002, China
| | - Guoqiang Zhou
- Key Laboratory of Chemical Biology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education, College of Chemistry & Environmental Science, Hebei University, Baoding 071002, China.
| | - Shuxiang Wang
- Key Laboratory of Chemical Biology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education, College of Chemistry & Environmental Science, Hebei University, Baoding 071002, China
| | - Jinchao Zhang
- Key Laboratory of Chemical Biology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education, College of Chemistry & Environmental Science, Hebei University, Baoding 071002, China
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Bhattacharyya U, Kumar B, Garai A, Bhattacharyya A, Kumar A, Banerjee S, Kondaiah P, Chakravarty AR. Curcumin "Drug" Stabilized in Oxidovanadium(IV)-BODIPY Conjugates for Mitochondria-Targeted Photocytotoxicity. Inorg Chem 2017; 56:12457-12468. [PMID: 28972748 DOI: 10.1021/acs.inorgchem.7b01924] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Ternary oxidovanadium(IV) complexes of curcumin (Hcur), dipicolylamine (dpa) base, and its derivatives having pendant noniodinated and di-iodinated boron-dipyrromethene (BODIPY) moiety (L1 and L2, respectively), namely, [VO(dpa)(cur)]ClO4 (1), [VO(L1)(cur)]ClO4 (2), and [VO(L2)(cur)]ClO4 (3) and their chloride salts (1a-3a) were prepared, characterized, and studied for anticancer activity. The chloride salts were used for biological studies due to their aqueous solubility. Complex 1 was structurally characterized by single-crystal X-ray crystallography. The complex has a VO2+ moiety bound to dpa ligand showing N,N,N-coordination in a facial mode, and curcumin is bound in its mono-anionic enolic form. The V-O(cur) distances are 1.950(18) and 1.977(16) Å, while the V-N bond lengths are 2.090(2), 2.130(2), and 2.290(2) Å. The bond trans to V═O is long due to trans effect. The complexes are stable in a solution phase over a long period of time of 48 h without showing any apparent degradation of the curcumin ligand. The diiodo-BODIPY ligand (L2) or Hcur alone showed limited solution stability in dark. The emissive BODIPY (L1) containing complex 2a showed preferential mitochondrial localization in MCF-7 cells in cellular imaging experiments. The cytotoxicity of the complexes was studied by MTT assay. The BODIPY complex 3a showed excellent photodynamic therapy effect in visible light (400-700 nm) giving IC50 values of 2-6 μM in HeLa and MCF-7 cancer cells, while being less toxic in dark (∼100 μM). The cell death was apoptotic in nature involving reactive oxygen species (ROS). Mechanistic data from pUC19 DNA photocleavage studies revealed photogenerated ROS as primarily 1O2 from the BODIPY moiety and ·OH radicals from the curcumin ligand.
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Affiliation(s)
- Utso Bhattacharyya
- Department of Inorganic and Physical Chemistry and ‡Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science , Bangalore 560 012, India
| | - Brijesh Kumar
- Department of Inorganic and Physical Chemistry and ‡Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science , Bangalore 560 012, India
| | - Aditya Garai
- Department of Inorganic and Physical Chemistry and ‡Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science , Bangalore 560 012, India
| | - Arnab Bhattacharyya
- Department of Inorganic and Physical Chemistry and ‡Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science , Bangalore 560 012, India
| | - Arun Kumar
- Department of Inorganic and Physical Chemistry and ‡Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science , Bangalore 560 012, India
| | - Samya Banerjee
- Department of Inorganic and Physical Chemistry and ‡Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science , Bangalore 560 012, India
| | - Paturu Kondaiah
- Department of Inorganic and Physical Chemistry and ‡Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science , Bangalore 560 012, India
| | - Akhil R Chakravarty
- Department of Inorganic and Physical Chemistry and ‡Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science , Bangalore 560 012, India
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Mohajeri M, Rezaee M, Sahebkar A. Cadmium-induced toxicity is rescued by curcumin: A review. Biofactors 2017; 43:645-661. [PMID: 28719149 DOI: 10.1002/biof.1376] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 06/16/2017] [Accepted: 06/22/2017] [Indexed: 12/16/2022]
Abstract
Cadmium (Cd) is one of the most common environmental and occupational heavy metals with extended distribution. Exposure to Cd may be associated with several deleterious consequences on the liver, bones, kidneys, lungs, testes, brain, immunological, and cardiovascular systems. Overproduction of reactive oxygen species (ROS) as the main mechanism behind its toxicity causes oxidative stress and subsequent damages to lipids, proteins, and DNA. Therefore, antioxidants along with chelating agents have shown promising outcomes against Cd-induced toxicity. Curcumin with various beneficial effects and medical efficacy has been evaluated for its inhibitory activities against biological impairments caused by Cd. Thus, this article is intended to address the effectiveness of curcumin against toxicity following Cd entry. Curcumin can afford to attenuate lipid peroxidation, glutathione depletion, alterations in antioxidant enzyme, and so forth through scavenging and chelating activities or Nrf2/Keap1/ARE pathway induction. © 2017 BioFactors, 43(5):645-661, 2017.
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Affiliation(s)
- Mohammad Mohajeri
- Department of Medical Biotechnology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mehdi Rezaee
- Department of Medical Biotechnology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
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35
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Three structurally related Copper complexes with two isomers: DNA/BSA binding ability, DNA cleavage activity and excellent cytotoxicity. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2016.12.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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36
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Abbas Z, Dasari S, Patra AK. Ternary Eu(iii) and Tb(iii) β-diketonate complexes containing chalcones: photophysical studies and biological outlook. RSC Adv 2017. [DOI: 10.1039/c7ra08543e] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Ternary Eu(iii) and Tb(iii) β-diketonate complexes containing chalcones were studied for their structures, photophysical properties, interactions with DNA and serum protein, and photo-induced DNA cleavage activity.
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Affiliation(s)
- Zafar Abbas
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
| | - Srikanth Dasari
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
| | - Ashis K. Patra
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
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37
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Adam MSS, Youssef MM, Aboelghar MF, Hafez AM, El-Ayaan U. Synthesis and characterization of binary and ternary oxovanadium complexes ofN,N′-(2-pyridyl)thiourea and curcumin: Catalytic oxidation potential, antibacterial, antimicrobial, antioxidant and DNA interaction studies. Appl Organomet Chem 2016. [DOI: 10.1002/aoc.3650] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Mohamed Shaker S. Adam
- Department of Chemistry, College of Science; King Faisal University; PO Box 380 Al Hufuf 31982 Al Hassa Saudi Arabia
- Department of Chemistry, Faculty of Science; Sohag University; Sohag 82534 Egypt
| | - Magdy M. Youssef
- Department of Chemistry, College of Science; King Faisal University; PO Box 380 Al Hufuf 31982 Al Hassa Saudi Arabia
- Chemistry Department, Faculty of Science; Mansoura University; Mansoura 35516 Egypt
| | - Maha F. Aboelghar
- Department of Chemistry, College of Science; King Faisal University; PO Box 380 Al Hufuf 31982 Al Hassa Saudi Arabia
- Chemistry Department, Faculty of Science; Cairo University; Giza Egypt
| | - Aly M. Hafez
- Department of Chemistry, College of Science; King Faisal University; PO Box 380 Al Hufuf 31982 Al Hassa Saudi Arabia
| | - Usama El-Ayaan
- Department of Chemistry, College of Science; King Faisal University; PO Box 380 Al Hufuf 31982 Al Hassa Saudi Arabia
- Chemistry Department, Faculty of Science; Mansoura University; Mansoura 35516 Egypt
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38
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Dasari S, Singh S, Sivakumar S, Patra AK. Dual-Sensitized Luminescent Europium(ΙΙΙ) and Terbium(ΙΙΙ) Complexes as Bioimaging and Light-Responsive Therapeutic Agents. Chemistry 2016; 22:17387-17396. [DOI: 10.1002/chem.201603453] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Indexed: 12/13/2022]
Affiliation(s)
- Srikanth Dasari
- Department of Chemistry; Indian Institute of Technology Kanpur; Kanpur 208016, Uttar Pradesh India
| | - Swati Singh
- Department of Chemical Engineering and Centre for Environmental Science and Engineering; Indian Institute of Technology Kanpur; Kanpur 208016, Uttar Pradesh India
| | - Sri Sivakumar
- Department of Chemical Engineering and Centre for Environmental Science and Engineering; Indian Institute of Technology Kanpur; Kanpur 208016, Uttar Pradesh India
| | - Ashis K. Patra
- Department of Chemistry; Indian Institute of Technology Kanpur; Kanpur 208016, Uttar Pradesh India
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39
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Singh K, Srivastava P, Patra AK. Binding interactions with biological targets and DNA photocleavage activity of Pr(III) and Nd(III) complexes of dipyridoquinoxaline. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2016.07.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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40
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41
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Garai A, Pant I, Banerjee S, Banik B, Kondaiah P, Chakravarty AR. Photorelease and Cellular Delivery of Mitocurcumin from Its Cytotoxic Cobalt(III) Complex in Visible Light. Inorg Chem 2016; 55:6027-35. [DOI: 10.1021/acs.inorgchem.6b00554] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Aditya Garai
- Department
of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Ila Pant
- Department
of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bangalore 560012, India
| | - Samya Banerjee
- Department
of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Bhabatosh Banik
- Department
of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Paturu Kondaiah
- Department
of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bangalore 560012, India
| | - Akhil R. Chakravarty
- Department
of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
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42
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43
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Dasari S, Abbas Z, Kumar P, Patra AK. Photosensitized samarium(iii) and erbium(iii) complexes of planar N,N-donor heterocyclic bases: crystal structures and evaluation of biological activity. CrystEngComm 2016. [DOI: 10.1039/c5ce02387d] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A series of Sm(iii) and Er(iii) complexes of N,N-donor heterocyclic bases were studied for their crystal structures, luminescence properties, binding with biomolecules and photo-induced DNA damage activity.
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Affiliation(s)
- Srikanth Dasari
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016, India
| | - Zafar Abbas
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016, India
| | - Priyaranjan Kumar
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016, India
| | - Ashis K. Patra
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016, India
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44
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Metal complexes of curcumin and curcumin derivatives for molecular imaging and anticancer therapy. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2015.09.001] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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45
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Sarkar T, Butcher RJ, Banerjee S, Mukherjee S, Hussain A. Visible light-induced cytotoxicity of a dinuclear iron(III) complex of curcumin with low-micromolar IC50 value in cancer cells. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2015.09.026] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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46
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Sarkar T, Banerjee S, Mukherjee S, Hussain A. Mitochondrial selectivity and remarkable photocytotoxicity of a ferrocenyl neodymium(iii) complex of terpyridine and curcumin in cancer cells. Dalton Trans 2016; 45:6424-38. [DOI: 10.1039/c5dt04775g] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
A mixed-ligand neodymium(iii) complex of ferrocene appended terpyridine and curcumin targets the mitochondria and shows remarkable visible-light induced cytotoxicity in HeLa and MCF-7 cancer cells while being much less toxic in dark and to MCF-10A normal cells.
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Affiliation(s)
- Tukki Sarkar
- Department of Chemistry
- Handique Girls’ College
- Guwahati 781001
- India
| | - Samya Banerjee
- Department of Inorganic and Physical Chemistry
- Indian Institute of Science
- Bangalore 560 012
- India
| | - Sanjoy Mukherjee
- Department of Inorganic and Physical Chemistry
- Indian Institute of Science
- Bangalore 560 012
- India
| | - Akhtar Hussain
- Department of Chemistry
- Handique Girls’ College
- Guwahati 781001
- India
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47
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Banerjee S, Pant I, Khan I, Prasad P, Hussain A, Kondaiah P, Chakravarty AR. Remarkable enhancement in photocytotoxicity and hydrolytic stability of curcumin on binding to an oxovanadium(IV) moiety. Dalton Trans 2015; 44:4108-22. [PMID: 25623080 DOI: 10.1039/c4dt02165g] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Oxovanadium(IV) complexes of polypyridyl and curcumin-based ligands, viz. [VO(cur)(L)Cl] (1, 2) and [VO(scur)(L)Cl] (3, 4), where L is 1,10-phenanthroline (phen in 1 and 3), dipyrido[3,2-a:2',3'-c]phenazine (dppz in 2 and 4), Hcur is curcumin and Hscur is diglucosylcurcumin, were synthesized and characterized and their cellular uptake, photocytotoxicity, intracellular localization, DNA binding, and DNA photo-cleavage activity studied. Complex [VO(cur)(phen)Cl] (1) has V(IV)N2O3Cl distorted octahedral geometry as evidenced from its crystal structure. The sugar appended complexes show significantly higher uptake into the cancer cells compared to their normal analogues. The complexes are remarkably photocytotoxic in visible light (400-700 nm) giving an IC50 value of <5 μM in HeLa, HaCaT and MCF-7 cells with no significant dark toxicity. The green emission of the complexes was used for cellular imaging. Predominant cytosolic localization of the complexes 1-4 to a lesser extent into the nucleus was evidenced from confocal imaging. The complexes as strong binders of calf thymus DNA displayed photocleavage of supercoiled pUC19 DNA in red light by generating ˙OH radicals as the ROS. The cell death is via an apoptotic pathway involving the ROS. Binding to the VO(2+) moiety has resulted in stability against any hydrolytic degradation of curcumin along with an enhancement of its photocytotoxicity.
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Affiliation(s)
- Samya Banerjee
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India.
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48
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Renfrew AK, Bryce NS, Hambley T. Cobalt(III) Chaperone Complexes of Curcumin: Photoreduction, Cellular Accumulation and Light-Selective Toxicity towards Tumour Cells. Chemistry 2015; 21:15224-34. [DOI: 10.1002/chem.201502702] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Indexed: 11/09/2022]
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49
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Banerjee S, Chakravarty AR. Metal complexes of curcumin for cellular imaging, targeting, and photoinduced anticancer activity. Acc Chem Res 2015; 48:2075-83. [PMID: 26158541 DOI: 10.1021/acs.accounts.5b00127] [Citation(s) in RCA: 198] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Curcumin is a polyphenolic species. As an active ingredient of turmeric, it is well-known for its traditional medicinal properties. The therapeutic values include antioxidant, anti-inflammatory, antiseptic, and anticancer activity with the last being primarily due to inhibition of the transcription factor NF-κB besides affecting several biological pathways to arrest tumor growth and its progression. Curcumin with all these positive qualities has only remained a potential candidate for cancer treatment over the years without seeing any proper usage because of its hydrolytic instability involving the diketo moiety in a cellular medium and its poor bioavailability. The situation has changed considerably in recent years with the observation that curcumin in monoanionic form could be stabilized on binding to a metal ion. The reports from our group and other groups have shown that curcumin in the metal-bound form retains its therapeutic potential. This has opened up new avenues to develop curcumin-based metal complexes as anticancer agents. Zinc(II) complexes of curcumin are shown to be stable in a cellular medium. They display moderate cytotoxicity against prostate cancer and neuroblastoma cell lines. A similar stabilization and cytotoxic effect is reported for (arene)ruthenium(II) complexes of curcumin against a variety of cell lines. The half-sandwich 1,3,5-triaza-7-phosphatricyclo-[3.3.1.1]decane (RAPTA)-type ruthenium(II) complexes of curcumin are shown to be promising cytotoxic agents with low micromolar concentrations for a series of cancer cell lines. In a different approach, cobalt(III) complexes of curcumin are used for its cellular delivery in hypoxic tumor cells using intracellular agents that reduce the metal and release curcumin as a cytotoxin. Utilizing the photophysical and photochemical properties of the curcumin dye, we have designed and synthesized photoactive curcumin metal complexes that are used for cellular imaging by fluorescence microscopy and damaging the cancer cells on photoactivation in visible light while being minimally toxic in darkness. In this Account, we have made an attempt to review the current status of the chemistry of metal curcumin complexes and present results from our recent studies on curcumin complexes showing remarkable in vitro photocytotoxicity. The undesirable dark toxicity of the complexes can be reduced with suitable choice of the metal and the ancillary ligands in a ternary structure. The complexes can be directed to specific subcellular organelles. Selectivity by targeting cancer cells over normal cells can be achieved with suitable ligand design. We expect that this methodology is likely to provide an impetus toward developing curcumin-based photochemotherapeutics for anticancer treatment and cure.
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Affiliation(s)
- Samya Banerjee
- Department of Inorganic and
Physical Chemistry, Indian Institute of Science, Bengaluru 560012, India
| | - Akhil R. Chakravarty
- Department of Inorganic and
Physical Chemistry, Indian Institute of Science, Bengaluru 560012, India
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50
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Banik B, Somyajit K, Nagaraju G, Chakravarty AR. Oxovanadium(IV) complexes of curcumin for cellular imaging and mitochondria targeted photocytotoxicity. Dalton Trans 2015; 43:13358-69. [PMID: 25069796 DOI: 10.1039/c4dt01487a] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Oxovanadium(IV) complexes [VO(R-tpy)(cur)](ClO4) (1, 2) of curcumin (Hcur) and terpyridine ligands (R-tpy) where R is phenyl (phtpy in 1) or p-triphenylphosphonium methylphenyl bromide (C6H4CH2PPh3Br) (TPP-phtpy in 2) were prepared and characterized and their DNA photocleavage activity, photocytotoxicity and cellular localization in cancer cells (HeLa and MCF-7) were studied. Acetylacetonate (acac) complexes [VO(R-tpy)(acac)](ClO4) of phtpy (3) and TPP-phtpy (4) were prepared and used as the control species. These complexes showed efficient cleavage of pUC19 DNA in visible light of 454 nm and near-IR light of 705 nm. Complexes 1 and 2 showed significant photocytotoxicity in visible light of 400-700 nm. FACS analysis showed sub-G1/G0 phase cell-cycle arrest in cancer cells when treated with 1 and 2 in visible light in comparison with the dark controls. Fluorescence microscopic studies revealed specific localization of the p-triphenylphosphonium complex 2 in the mitochondria of MCF-7 cancer cells whereas no such specificity was observed for complex 1.
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Affiliation(s)
- Bhabatosh Banik
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India.
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