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Subhash, Kumar M, Phor A, Gupta M, Chaudhary A. Design, synthesis, characterization, in vitro cytotoxic, antimicrobial, antioxidant studies, DFT, thermal and molecular docking evaluation of biocompatible Co(II) complexes of N 4O 4-macrocyclic ligands. Comput Biol Chem 2024; 110:108032. [PMID: 38437779 DOI: 10.1016/j.compbiolchem.2024.108032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/10/2024] [Accepted: 02/14/2024] [Indexed: 03/06/2024]
Abstract
Bioactive cobalt (II) macrocyclic complexes [Co(N4O4ML1)Cl2]-[Co(N4O4ML3)Cl2] have been synthesized by using the macrocyclic ligands [N4O4ML1], [N4O4ML2], and [N4O4ML3] that have an N4O4 core. These three macrocyclic ligands were all isolated in pure form, together with their complexes. Microanalytical investigations, FT-IR NMR, Mass, magnetic moments, electronic, PXRD, TGA, and EPR spectrum studies were used to analyse their structures. For these complexes, an octahedral geometry is proposed for the metal ion. By using molecular weights and conductivity measurements the monomeric and non-electrolytic nature has been confirmed. The Coats-Redfern and FWO methods are used to determine the thermodynamic characteristics of the ligands and their Co(II) complexes. The molecular modelling using the DFT technique displays the bond angle, bond lengths and quantum chemical properties. To determine their ability to prevent the growth of harmful fungus and bacteria, the ligands [N4O4ML1]- [N4O4ML3] and their complexes were tested in vitro against A. Niger, C. albicans and B. subtilis, S. aureus, E. coli and S. typhi fungal and bacterial organisms, respectively. By using DPPH free radical scavenger assays, the in vitro antioxidant capabilities of each compound were evaluated. The [Co(N4O4ML3)Cl2] antioxidative capabilities revealed significant radical scavenging power. The MTT assay was used to assess the toxicity of all the synthesised compounds under inquiry on MCF-7, HeLa, and A549 cancer cells. The findings revealed that the ligand and the compounds gave outstanding IC50 values in the range of 9.07-36.25 (uM) at a concentration of 25 ppm. Among all the substances evaluated, [Co(N4O4ML3)Cl2] complex was discovered to be the most active and least cytotoxic. Additionally, docking investigations of the produced compounds were carried out in order to validate the biological outcomes.
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Affiliation(s)
- Subhash
- Department of Chemistry, Kurukshetra University, Kurukshetra, Haryana 136119, India
| | - Manish Kumar
- Department of Chemistry, Maharshi Dayanand University, Rohtak, Haryana 124001, India
| | - Anita Phor
- Department of Chemistry, Hindu College, Sonipat, Haryana 131001, India
| | - Monika Gupta
- Department of Chemistry, Vaish College, Rohtak, Haryana 124001, India
| | - Ashu Chaudhary
- Department of Chemistry, Kurukshetra University, Kurukshetra, Haryana 136119, India.
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An Experimental and Theoretical Study of Dye Properties of Thiophenyl Derivatives of 2-Hydroxy-1,4-naphthoquinone (Lawsone). MATERIALS 2021; 14:ma14195587. [PMID: 34639987 PMCID: PMC8509387 DOI: 10.3390/ma14195587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 09/21/2021] [Accepted: 09/23/2021] [Indexed: 11/16/2022]
Abstract
A prospective study of the dye properties of non-toxic lawsone thiophenyl derivatives, obtained using a green synthetic methodology allowed for the description of their bathochromic shifts in comparison to those of lawsone, a well-known natural pigment used as a colorant that recently also has aroused interest in dye-sensitized solar cells (DSSCs). These compounds exhibited colors close to red, with absorption bands in visible and UV wavelength range. The colorimetric study showed that these compounds exhibited a darker color than that of lawsone within a range of colors depending on the substituent in the phenyl ring. Computational calculations employing Density Functional Theory (DFT) and Time-Dependent Density Functional Theory (TD-DFT), showed that the derivatives have lower excitation energies than lawsone, while the alignment of their frontier orbitals regarding the conduction bands of TiO2 and ZnO and the redox potential of the electrolyte I-/I3- suggests that they could be employed as sensitizers. The study of the interactions of the lawsone and a derivative with a TiO2 surface model by different anchoring modes, showed that the adsorption is thermodynamically favored. Natural bond orbital (NBO) analysis indicates a two-center bonding (BD) O-Ti as the main interaction of the dyes with TiO2.
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Braasch-Turi M, Crans DC. Synthesis of Naphthoquinone Derivatives: Menaquinones, Lipoquinones and Other Vitamin K Derivatives. Molecules 2020; 25:molecules25194477. [PMID: 33003459 PMCID: PMC7582351 DOI: 10.3390/molecules25194477] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Revised: 09/26/2020] [Accepted: 09/27/2020] [Indexed: 12/20/2022] Open
Abstract
Menaquinones are a class of isoprenoid molecules that have important roles in human biology and bacterial electron transport, and multiple methods have been developed for their synthesis. These compounds consist of a methylnaphthoquinone (MK) unit and an isoprene side chain, such as found in vitamin K1 (phylloquinone), K2, and other lipoquinones. The most common naturally occurring menaquinones contain multiple isoprene units and are very hydrophobic, rendering it difficult to evaluate the biological activity of these compounds in aqueous assays. One way to overcome this challenge has been the application of truncated MK-derivatives for their moderate solubility in water. The synthesis of such derivatives has been dominated by Friedel-Crafts alkylation with BF3∙OEt2. This attractive method occurs over two steps from commercially available starting materials, but it generally produces low yields and a mixture of isomers. In this review, we summarize reported syntheses of both truncated and naturally occurring MK-derivatives that encompass five different synthetic strategies: Nucleophilic ring methods, metal-mediated reactions, electrophilic ring methods, pericyclic reactions, and homologation and side chain extensions. The advantages and disadvantages of each method are discussed, identifying methods with a focus on high yields, regioselectivity, and stereochemistry leading to a detailed overview of the reported chemistry available for preparation of these compounds.
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Affiliation(s)
| | - Debbie C. Crans
- Chemistry Department, Colorado State University, Ft. Collins, CO 80525, USA;
- Cell & Molecular Biology Program, Colorado State University, Ft. Collins, CO 80525, USA
- Correspondence:
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Hesabi N, Ebrahimi A. The electrochemical properties and PIM1 kinase enzyme inhibition of some 2-(hydroxy phenyl amino) naphthalene-1,4-dione derivatives. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Choudhari D, Salunke-Gawali S, Chakravarty D, Shaikh SR, Lande DN, Gejji SP, Rao PK, Satpute S, Puranik VG, Gonnade R. Synthesis and biological activity of imidazole based 1,4-naphthoquinones. NEW J CHEM 2020. [DOI: 10.1039/c9nj04339j] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Design and development of drugs in multi-drug resistant (MDR) infections have been of growing interest. The syntheses, structural studies, antibacterial and antifungal activities of imidazole-based 1,4-naphthoquinones are studied in this investigation.
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Affiliation(s)
- Dinkar Choudhari
- Department of Chemistry
- Savitribai Phule Pune University
- Pune 411007
- India
| | | | | | - Samir R. Shaikh
- Centre for Material Characterization
- National Chemical Laboratory
- Pune 411008
- India
| | - Dipali N. Lande
- Department of Chemistry
- Savitribai Phule Pune University
- Pune 411007
- India
| | - Shridhar P. Gejji
- Department of Chemistry
- Savitribai Phule Pune University
- Pune 411007
- India
| | - Pradeep Kumar Rao
- Department of Chemistry
- Savitribai Phule Pune University
- Pune 411007
- India
| | - Surekha Satpute
- Department of Microbiology
- Savitribai Phule Pune University
- Pune 411007
- India
| | - Vedavati G. Puranik
- Centre for Material Characterization
- National Chemical Laboratory
- Pune 411008
- India
| | - Rajesh Gonnade
- Centre for Material Characterization
- National Chemical Laboratory
- Pune 411008
- India
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Ugwu NF, Anarado CJO, Ibeji CU, Okpareke OC, Ezeorah CJ, Okagu OD, Ekennia AC, Cömert F, Babahan I, Coban B, Ujam OT. Synthesis, Spectroscopic, Antimicrobial Activity and Computational Studies of Some Homoleptic and Heteroleptic Metal(II) Complexes of 2‐Furoic Acid Hydrazone. ChemistrySelect 2019. [DOI: 10.1002/slct.201902870] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Nwanneka F. Ugwu
- Department of Pure and Industrial ChemistryFaculty of Physical SciencesUniversity of Nigeria Nsukka 410001, Enugu State Nigeria
| | - Chigozie J. O. Anarado
- Department of Pure and Industrial ChemistryNnamdi Azikiwe University P.M.B 5025 Awka, Anambra State Nigeria
| | - Collins U. Ibeji
- Department of Pure and Industrial ChemistryFaculty of Physical SciencesUniversity of Nigeria Nsukka 410001, Enugu State Nigeria
- Catalysis and Peptide Research UnitSchool of Health SciencesUniversity of KwaZulu-Natal Durban 4041 South Africa
| | - Obinna C. Okpareke
- Department of Pure and Industrial ChemistryFaculty of Physical SciencesUniversity of Nigeria Nsukka 410001, Enugu State Nigeria
| | - Chigozie J. Ezeorah
- Department of Pure and Industrial ChemistryFaculty of Physical SciencesUniversity of Nigeria Nsukka 410001, Enugu State Nigeria
- Department of ChemistryFaculty of Natural SciencesImperial College, London White City Campus W12 0BZ, London United Kingdom
| | - Ogadimma D. Okagu
- Department of Pure and Industrial ChemistryFaculty of Physical SciencesUniversity of Nigeria Nsukka 410001, Enugu State Nigeria
| | - Anthony C. Ekennia
- Department of ChemistryAlex Ekwueme Federal University Ndufu-Alike, P.M.B 1010, Abakaliki, Ebonyi State Nigeria
| | - Füsun Cömert
- Department of MicrobiologyFaculty of MedicineZonguldak Bulent Ecevit University Zonguldak 67100 Turkey
| | - Ilknur Babahan
- Department of ChemistryAdnan Menderes University Aydin 09010 Turkey
| | - Burak Coban
- Department of ChemistryFaculty of Arts and SciencesZonguldak Bulent Ecevit University Zonguldak 67100 Turkey
| | - Oguejiofo T. Ujam
- Department of Pure and Industrial ChemistryFaculty of Physical SciencesUniversity of Nigeria Nsukka 410001, Enugu State Nigeria
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Koehn JT, Beuning CN, Peters BJ, Dellinger SK, Van Cleave C, Crick DC, Crans DC. Investigating Substrate Analogues for Mycobacterial MenJ: Truncated and Partially Saturated Menaquinones. Biochemistry 2019; 58:1596-1615. [DOI: 10.1021/acs.biochem.9b00007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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8
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Choudhari D, Lande DN, Chakravarty D, Gejji SP, Das P, Pardesi KR, Satpute S, Salunke-Gawali S. Reactions of 2,3-dichloro-1,4-naphthoquinone with aminophenols: evidence for hydroxy benzophenoxazine intermediate and antibacterial activity. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.08.066] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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9
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Koehn J, Crick DC, Crans DC. Synthesis and Characterization of Partially and Fully Saturated Menaquinone Derivatives. ACS OMEGA 2018; 3:14889-14901. [PMID: 31458155 PMCID: PMC6643618 DOI: 10.1021/acsomega.8b02620] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 10/10/2018] [Indexed: 05/08/2023]
Abstract
Menaquinones (MKs) contain both a redox active quinone moiety and a hydrophobic repeating isoprenyl side chain of varying lengths and degrees of saturation. This characteristic structure allows MKs to play a key role in the respiratory electron transport system of some prokaryotes by shuttling electrons and protons between membrane-bound protein complexes, which act as electron acceptors and donors. Hydrophobic MK molecules with partially and fully saturated isoprenyl side chains are found in a wide range of eubacteria and archaea, and the structural variations of the MK analogues are evolutionarily conserved but poorly understood. For example, Mycobacterium tuberculosis, the causative agent of tuberculosis, uses predominantly MK-9(II-H2) (saturated at the second isoprene unit) as its electron carrier and depends on the synthesis of MK-9(II-H2) for survival in host macrophages. Thus, MKs with partially saturated isoprenyl side chains may represent a novel virulence factor. Naturally occurring longer MKs are very hydrophobic, whereas MK analogues that have a truncated (i.e., one to three isoprenes) isoprenyl side chain are less hydrophobic. This improves their solubility in aqueous solutions, allowing rigorous study of their structure and biological activity. We present the synthesis and characterization of two partially saturated MK analogues, MK-2(II-H2) and MK-3(II-H2), and two novel fully saturated MK derivatives, MK-2(I,II-H4) and MK-3(I,II,III-H6).
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Affiliation(s)
- Jordan
T. Koehn
- Chemistry
Department, Cell and Molecular Biology Program,
and Microbiology, Immunology,
and Pathology Department, Colorado State
University, Fort Collins, Colorado 80523, United States
| | - Dean C. Crick
- Chemistry
Department, Cell and Molecular Biology Program,
and Microbiology, Immunology,
and Pathology Department, Colorado State
University, Fort Collins, Colorado 80523, United States
| | - Debbie C. Crans
- Chemistry
Department, Cell and Molecular Biology Program,
and Microbiology, Immunology,
and Pathology Department, Colorado State
University, Fort Collins, Colorado 80523, United States
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10
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Ekennia AC, Onwudiwe DC, Osowole AA, Okpareke OC, Olubiyi OO, Lane JR. Coordination compounds of heterocyclic bases: synthesis, characterization, computational and biological studies. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3664-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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11
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Yang S, Lu D, Huo H, Luo F, Gong Y. Construction of Substituted 2-Aminophenols via Formal [3 + 3] Cycloaddition of Alkyl 2-Aroyl-1-chlorocyclopropanecarboxylate with in Situ Generated Enamines. Org Lett 2018; 20:6943-6947. [DOI: 10.1021/acs.orglett.8b03090] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sen Yang
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, Hubei 430074, China
| | - Dengfu Lu
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, Hubei 430074, China
| | - Hengrui Huo
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, Hubei 430074, China
| | - Fan Luo
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, Hubei 430074, China
| | - Yuefa Gong
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, Hubei 430074, China
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12
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Ekennia AC, Osowole AA, Onwudiwe DC, Babahan I, Ibeji CU, Okafor SN, Ujam OT. Synthesis, characterization, molecular docking, biological activity and density functional theory studies of novel 1,4-naphthoquinone derivatives and Pd(II), Ni(II) and Co(II) complexes. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4310] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Anthony C. Ekennia
- Department of Chemistry; Federal University Ndufu-Alike Ikwo (FUNAI); PMB 1010 Abakaliki Ebonyi State Nigeria
| | - Aderoju A. Osowole
- Inorganic Unit, Department of Chemistry; University of Ibadan; Oyo State Nigeria
| | - Damian C. Onwudiwe
- Material Science Innovation and Modelling (MaSIM) Research Focus Area, Faculty of Agriculture, Science and Technology, North-West University (Mafikeng Campus); Private Bag X2046 Mmabatho South Africa
- Department of Chemistry, School of Mathematical and Physical Sciences, Faculty of Agriculture, Science and Technology; North-West University (Mafikeng Campus); Private Bag X2046 Mmabatho 2735 South Africa
| | - Ilknur Babahan
- Department of Chemistry; Adnan Menderes University; Aydin 09010 Turkey
- Department of Polymer Engineering; University of Akron; Akron Ohio 44325 U.S.A
| | - Collins U. Ibeji
- Catalysis and Peptide Research Unit, School of Health Sciences; University of KwaZulu-Natal; Durban 4041 South Africa
- Department of Pure and Industrial Chemistry, Faculty of Physical Sciences; University of Nigeria; Nsukka 410001 Enugu State Nigeria
| | - Sunday N. Okafor
- Department of Pharmaceutical and Medicinal Chemistry; University of Nigeria; Nsukka Nigeria
| | - Oguejiofo T. Ujam
- Department of Pure and Industrial Chemistry, Faculty of Physical Sciences; University of Nigeria; Nsukka 410001 Enugu State Nigeria
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13
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Koehn J, Magallanes ES, Peters BJ, Beuning CN, Haase AA, Zhu MJ, Rithner CD, Crick DC, Crans DC. A Synthetic Isoprenoid Lipoquinone, Menaquinone-2, Adopts a Folded Conformation in Solution and at a Model Membrane Interface. J Org Chem 2018; 83:275-288. [PMID: 29168636 PMCID: PMC5759649 DOI: 10.1021/acs.joc.7b02649] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Indexed: 11/29/2022]
Abstract
Menaquinones (naphthoquinones, MK) are isoprenoids that play key roles in the respiratory electron transport system of some prokaryotes by shuttling electrons between membrane-bound protein complexes acting as electron acceptors and donors. Menaquinone-2 (MK-2), a truncated MK, was synthesized, and the studies presented herein characterize the conformational and chemical properties of the hydrophobic MK-2 molecule. Using 2D NMR spectroscopy, we established for the first time that MK-2 has a folded conformation defined by the isoprenyl side-chain folding back over the napthoquinone in a U-shape, which depends on the specific environmental conditions found in different solvents. We used molecular mechanics to illustrate conformations found by the NMR experiments. The measured redox potentials of MK-2 differed in three organic solvents, where MK-2 was most easily reduced in DMSO, which may suggest a combination of solvent effect (presumably in part because of differences in dielectric constants) and/or conformational differences of MK-2 in different organic solvents. Furthermore, MK-2 was found to associate with the interface of model membranes represented by Langmuir phospholipid monolayers and Aerosol-OT (AOT) reverse micelles. MK-2 adopts a slightly different U-shaped conformation within reverse micelles compared to within solution, which is in sharp contrast to the extended conformations illustrated in literature for MKs.
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Affiliation(s)
- Jordan
T. Koehn
- Chemistry
Department, Cell and Molecular Biology Program,
and Microbiology, Immunology,
and Pathology Department, Colorado State
University, Fort Collins, Colorado 80523, United States
| | - Estela S. Magallanes
- Chemistry
Department, Cell and Molecular Biology Program,
and Microbiology, Immunology,
and Pathology Department, Colorado State
University, Fort Collins, Colorado 80523, United States
| | - Benjamin J. Peters
- Chemistry
Department, Cell and Molecular Biology Program,
and Microbiology, Immunology,
and Pathology Department, Colorado State
University, Fort Collins, Colorado 80523, United States
| | - Cheryle N. Beuning
- Chemistry
Department, Cell and Molecular Biology Program,
and Microbiology, Immunology,
and Pathology Department, Colorado State
University, Fort Collins, Colorado 80523, United States
| | - Allison A. Haase
- Chemistry
Department, Cell and Molecular Biology Program,
and Microbiology, Immunology,
and Pathology Department, Colorado State
University, Fort Collins, Colorado 80523, United States
| | - Michelle J. Zhu
- Chemistry
Department, Cell and Molecular Biology Program,
and Microbiology, Immunology,
and Pathology Department, Colorado State
University, Fort Collins, Colorado 80523, United States
| | - Christopher D. Rithner
- Chemistry
Department, Cell and Molecular Biology Program,
and Microbiology, Immunology,
and Pathology Department, Colorado State
University, Fort Collins, Colorado 80523, United States
| | - Dean C. Crick
- Chemistry
Department, Cell and Molecular Biology Program,
and Microbiology, Immunology,
and Pathology Department, Colorado State
University, Fort Collins, Colorado 80523, United States
| | - Debbie C. Crans
- Chemistry
Department, Cell and Molecular Biology Program,
and Microbiology, Immunology,
and Pathology Department, Colorado State
University, Fort Collins, Colorado 80523, United States
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14
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Müller L, Hübner EG, Burzlaff N. Reinvestigation of the Synthesis of Hydroxy-Functionalized Diazapentacene: Unexpected Formation of a Phenoxazinone. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Lisa Müller
- Inorganic Chemistry; Department of Chemistry and Pharmacy; Friedrich-Alexander University Erlangen-Nürnberg (FAU); Egerlandstraße 1 91058 Erlangen Germany
| | - Eike G. Hübner
- Institute of Organic Chemistry; Clausthal University of Technology; Leibnizstraße 6 38678 Clausthal-Zellerfeld Germany
| | - Nicolai Burzlaff
- Inorganic Chemistry; Department of Chemistry and Pharmacy; Friedrich-Alexander University Erlangen-Nürnberg (FAU); Egerlandstraße 1 91058 Erlangen Germany
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16
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Patil A, Lande DN, Nalkar A, Gejji SP, Chakrovorty D, Gonnade R, Moniz T, Rangel M, Pereira E, Salunke-Gawali S. Binding selectivity of vitamin K3 based chemosensors towards nickel(II) and copper(II) metal ions. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.04.094] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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17
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Dash TK, Konkimalla VB. Selection of P-Glycoprotein Inhibitor and Formulation of Combinational Nanoformulation Containing Selected Agent Curcumin and DOX for Reversal of Resistance in K562 Cells. Pharm Res 2017; 34:1741-1750. [PMID: 28536971 DOI: 10.1007/s11095-017-2182-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 05/12/2017] [Indexed: 12/22/2022]
Abstract
PURPOSE To select P-glycoprotein (P-gp) inhibitor from natural source for reversal of DOX resistance in K562 cells and to develop selected one in to nanoformulation in combination with DOX. METHODS DOX resistant K562 (K562R) cells were developed and reversal of resistance by P-gp inhibitor was validated by co-treatment with verapamil. The p-gp inhibitors were evaluated for their potential to inhibit P-gp (calcein assay) and to reverse drug resistance (XTT cell viability assay). The selected agent, curcumin was formulated in to liposome along with DOX and characterized for size, zeta potential, encapsulation efficiency and release rate. Uptake, P-gp inhibition and reversal of acquired drug resistance in K562R cells were performed. RESULTS P-gp inhibitors such as biochanin-A and curcumin were marked suitable for combination with DOX. However, only curcumin could increase the sensitivity of DOX at all dosing levels, therefore used for further studies. Liposomes loaded with curcumin were formulated and characterized where a prolonged release was observed. The uptake of liposomal curcumin was comparable to nanodispersed curcumin but had lower cytotoxicity. DOX and curcumin coloaded liposomes successfully reversed DOX resistance in K562 cells. CONCLUSION The coloaded liposomes increased the safety of curcumin with improved efficacy thus can be employed for reversal of acquired DOX resistance.
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Affiliation(s)
- Tapan K Dash
- School of Biological Sciences, National Institute of Science Education and Research (NISER), Homi Bhabha National Institute (HBNI), PO- Bhimpur-Padanpur, Via- Jatni, Khurda, 752050, India
| | - V Badireenath Konkimalla
- School of Biological Sciences, National Institute of Science Education and Research (NISER), Homi Bhabha National Institute (HBNI), PO- Bhimpur-Padanpur, Via- Jatni, Khurda, 752050, India.
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Dash TK, Konkimalla VB. Formulation and Optimization of Doxorubicin and Biochanin A Combinational Liposomes for Reversal of Chemoresistance. AAPS PharmSciTech 2017; 18:1116-1124. [PMID: 27600324 DOI: 10.1208/s12249-016-0614-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2016] [Accepted: 08/09/2016] [Indexed: 01/09/2023] Open
Abstract
Circumvention of drug resistance still remains a challenge in the development of anticancer therapeutics. Combinational nano-formulations provide many avenues for effective cancer therapy and reversal of drug resistance. In the current study, combination of biochanin A (BioA) and doxorubicin (DOX) in liposomes were prepared and studied for its potential to reverse DOX resistance in COLO205 cells. After development and validation of DOX resistant cells of COLO205 (ColoR), dosing ratio of DOX and BioA for reversal of DOX resistance was determined by co-treatment in ColoR cells. As limited solubility and analytical data available for BioA, therefore solubility was studied for BioA and analytical method was developed for the combination. Combinational liposomes were prepared and optimized for both lipid content and surface charge by evaluating size, polydispersity index, zeta potential, and encapsulation efficiency. The optimized formulation had a size about 125 nm; zeta potential of -19.5 mV and 70% encapsulation efficiency (EE) for BioA. Thus, prepared combinational liposomes of DOX and BioA were evaluated for its cellular uptake and efficacy to reverse DOX resistance. From the study, increased DOX uptake and promising effect for reversal of DOX resistance was observed.
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Dash TK, Konkimalla VSB. Selection and optimization of nano-formulation of P-glycoprotein inhibitor for reversal of doxorubicin resistance in COLO205 cells. ACTA ACUST UNITED AC 2017; 69:834-843. [PMID: 28397291 DOI: 10.1111/jphp.12722] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 03/04/2017] [Indexed: 12/15/2022]
Abstract
OBJECTIVE The prime objective of current work was to develop a strategy for preparation of combinational nano-formulation for reversal of drug resistance. METHODS As a model system, doxorubicin (DOX)-resistant COLO205 cells were developed and validated. From co-treatment studies with DOX, curcumin was selected as it reversed DOX-resistance at lowest concentration. In an attempt to increase its solubility, curcumin was encapsulated into hydroxypropyl-β-cyclodextrin (HP-β-CD). Here, we propose that presence of stabilizer overcomes its low encapsulation efficiency. Thus, we evaluated curcumin encapsulation in HP-β-CD in presence of different stabilizers and organic solvents. Finally, the effect of nanocurcumin with liposomal DOX was studied for reversal of resistance in COLO205 cells. KEY FINDINGS In the process encapsulation, selective optimization of organic solvent by freeze-drying was found to be appropriate among other methods. From optimization studies with different organic solvent (acetone and dichloromethane) and stabilizer [polyvinyl alcohol (PVA) and Pluronics], HP-β-CD-encapsulated curcumin prepared using acetone in PVA-stabilized dispersion increased encapsulation (60%) with size of ~40 nm. Prepared nano-curcumin reversed the DOX resistance effectively in combination with liposomal DOX. CONCLUSIONS Curcumin reversed DOX resistance in COLO205 cells at low concentration and enhanced curcumin encapsulation in HP-β-CD was noted in presence of PVA. Further, it was observed that prepared HP-β-CD-encapsulated curcumin is equi-efficacious to nano-dispersed curcumin.
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Affiliation(s)
- Tapan K Dash
- School of Biological Sciences, National Institute of Science Education and Research (NISER, HBNI), Khurda, India
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Peres RS, Santos GB, Cecilio NT, Jabor VAP, Niehues M, Torres BGS, Buqui G, Silva CHTP, Costa TD, Lopes NP, Nonato MC, Ramalho FS, Louzada-Júnior P, Cunha TM, Cunha FQ, Emery FS, Alves-Filho JC. Lapachol, a compound targeting pyrimidine metabolism, ameliorates experimental autoimmune arthritis. Arthritis Res Ther 2017; 19:47. [PMID: 28270195 PMCID: PMC5341405 DOI: 10.1186/s13075-017-1236-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 01/13/2017] [Indexed: 12/29/2022] Open
Abstract
Background The inhibition of pyrimidine biosynthesis by blocking the dihydroorotate dehydrogenase (DHODH) activity, the prime target of leflunomide (LEF), has been proven to be an effective strategy for rheumatoid arthritis (RA) treatment. However, a considerable proportion of RA patients are refractory to LEF. Here, we investigated lapachol (LAP), a natural naphthoquinone, as a potential DHODH inhibitor and addressed its immunosuppressive properties. Methods Molecular flexible docking studies and bioactivity assays were performed to determine the ability of LAP to interact and inhibit DHODH. In vitro studies were conducted to assess the antiproliferative effect of LAP using isolated lymphocytes. Finally, collagen-induced arthritis (CIA) and antigen-induced arthritis (AIA) models were employed to address the anti-arthritic effects of LAP. Results We found that LAP is a potent DHODH inhibitor which had a remarkable ability to inhibit both human and murine lymphocyte proliferation in vitro. Importantly, uridine supplementation abrogated the antiproliferative effect of LAP, supporting that the pyrimidine metabolic pathway is the target of LAP. In vivo, LAP treatment markedly reduced CIA and AIA progression as evidenced by the reduction in clinical score, articular tissue damage, and inflammation. Conclusions Our findings propose a binding model of interaction and support the ability of LAP to inhibit DHODH, decreasing lymphocyte proliferation and attenuating the severity of experimental autoimmune arthritis. Therefore, LAP could be considered as a potential immunosuppressive lead candidate with potential therapeutic implications for RA. Electronic supplementary material The online version of this article (doi:10.1186/s13075-017-1236-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Raphael S Peres
- Department of Pharmacology, Ribeirão Preto Medical School, Center of Research in Inflammatory Diseases (CRID), University of São Paulo, Avenida Bandeirantes, 3900, Ribeirão Preto, São Paulo, CEP: 14049-900, Brazil
| | - Gabriela B Santos
- Department of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida do Café s/n, Ribeirão Preto, CEP: 14040-903, Brazil
| | - Nerry T Cecilio
- Department of Pharmacology, Ribeirão Preto Medical School, Center of Research in Inflammatory Diseases (CRID), University of São Paulo, Avenida Bandeirantes, 3900, Ribeirão Preto, São Paulo, CEP: 14049-900, Brazil
| | - Valquíria A P Jabor
- NPPNS, Department of Physics and Chemistry, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida do Café s/n, Ribeirão Preto, Brazil
| | - Michael Niehues
- NPPNS, Department of Physics and Chemistry, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida do Café s/n, Ribeirão Preto, Brazil
| | - Bruna G S Torres
- Pharmaceutical Sciences Graduate Program, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Sarmento Leite 521, Porto Alegre, Brazil
| | - Gabriela Buqui
- NPPNS, Department of Physics and Chemistry, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida do Café s/n, Ribeirão Preto, Brazil
| | - Carlos H T P Silva
- Department of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida do Café s/n, Ribeirão Preto, CEP: 14040-903, Brazil
| | - Teresa Dalla Costa
- Pharmaceutical Sciences Graduate Program, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Sarmento Leite 521, Porto Alegre, Brazil
| | - Norberto P Lopes
- NPPNS, Department of Physics and Chemistry, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida do Café s/n, Ribeirão Preto, Brazil
| | - Maria C Nonato
- NPPNS, Department of Physics and Chemistry, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida do Café s/n, Ribeirão Preto, Brazil
| | - Fernando S Ramalho
- Department of Pathology, Ribeirão Preto Medical School, University of São Paulo, Avenida Bandeirantes 3900, Ribeirão Preto, Brazil
| | - Paulo Louzada-Júnior
- Department of Internal Medicine, Ribeirão Preto Medical School, Center of Research in Inflammatory Diseases (CRID), University of São Paulo, Avenida Bandeirantes 3900, Ribeirão Preto, Brazil
| | - Thiago M Cunha
- Department of Pharmacology, Ribeirão Preto Medical School, Center of Research in Inflammatory Diseases (CRID), University of São Paulo, Avenida Bandeirantes, 3900, Ribeirão Preto, São Paulo, CEP: 14049-900, Brazil
| | - Fernando Q Cunha
- Department of Pharmacology, Ribeirão Preto Medical School, Center of Research in Inflammatory Diseases (CRID), University of São Paulo, Avenida Bandeirantes, 3900, Ribeirão Preto, São Paulo, CEP: 14049-900, Brazil
| | - Flavio S Emery
- Department of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida do Café s/n, Ribeirão Preto, CEP: 14040-903, Brazil.
| | - Jose C Alves-Filho
- Department of Pharmacology, Ribeirão Preto Medical School, Center of Research in Inflammatory Diseases (CRID), University of São Paulo, Avenida Bandeirantes, 3900, Ribeirão Preto, São Paulo, CEP: 14049-900, Brazil.
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Synthesis, spectral, thermal, antibacterial and molecular docking studies of some metal(II) complexes of 2-(1,3-benzothiazol-2-ylamino)naphthalene-1,4-dione. RESEARCH ON CHEMICAL INTERMEDIATES 2016. [DOI: 10.1007/s11164-016-2780-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Dash TK, Konkimalla VB. Comparative Study of Different Nano-Formulations of Curcumin for Reversal of Doxorubicin Resistance in K562R Cells. Pharm Res 2016; 34:279-289. [PMID: 27815791 DOI: 10.1007/s11095-016-2060-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 10/25/2016] [Indexed: 12/11/2022]
Abstract
PURPOSE Curcumin is very well established as a chemo-therapeutic, chemo-preventive and chemo-sensitizing agent in diverse disease conditions. As the isolated pure form has poor solubility and pharmacokinetic problems, therefore it is encapsulated in to several nano-formulations to improve its bioavailability. Here in the current study, we aim to compare different nano-formulations of curcumin for their chemo-sensitizing activity in doxorubicin (DOX) resistant K562 cells. METHODS Four different curcumin formulations were prepared namely DMSO assisted curcumin nano-dispersion (CurD, 260 nm), liposomal curcumin (CurL, 165 nm), MPEG-PCL micellar curcumin (CurM, 18 nm) and cyclodextrin encapsulated curcumin (CurN, 37 nm). The formulations were subjected to particle characterizations (size, zeta potential, release studies), followed by biological assays such as cellular uptake, P-gp inhibitory activity and reversal of DOX resistance by co-treatment with DOX. RESULTS Curcumin uptake in K562N and K562R cells was mildly reduced when treated with CurL and CurM, while for CurD and CurN the uptake remained equivalent. However, CurL retained P-gp inhibitory activity of curcumin and with a considerable chemo-sensitizing effect but CurM showed no P-gp inhibitory activity. CurN retained above biological activities, but requires a secondary carrier under in vivo conditions. CONCLUSIONS From the results, CurM was found to be most suitable for solubilization of curcumin where as CurL can be considered as most suitable nano-formulation for reversal of DOX resistance.
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Affiliation(s)
- Tapan K Dash
- School of Biological Sciences, National Institute of Science Education and Research (NISER), HBNI, PO- Bhimpur-Padanpur, Via- Jatni, Khurda, 752050, India
| | - V Badireenath Konkimalla
- School of Biological Sciences, National Institute of Science Education and Research (NISER), HBNI, PO- Bhimpur-Padanpur, Via- Jatni, Khurda, 752050, India.
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Tautomerism in o-hydroxyanilino-1,4-naphthoquinone derivatives: Structure, NMR, HPLC and density functional theoretic investigations. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.06.026] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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24
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Polymorphism in chloro derivatives of 1,4-naphthoquinone: Experiment and density functional theoretic investigations. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.05.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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25
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Agarwal G, Lande DN, Chakrovarty D, Gejji SP, Gosavi-Mirkute P, Patil A, Salunke-Gawali S. Bromine substituted aminonaphthoquinones: synthesis, characterization, DFT and metal ion binding studies. RSC Adv 2016. [DOI: 10.1039/c6ra20970j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Bromine substituted aminonaphthoquinones – chemosensors for metal ions.
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Affiliation(s)
- Gunjan Agarwal
- Department of Chemistry
- Savitribai Phule Pune University
- Pune 411007
- India
| | - Dipali N. Lande
- Department of Chemistry
- Savitribai Phule Pune University
- Pune 411007
- India
| | | | - Shridhar P. Gejji
- Department of Chemistry
- Savitribai Phule Pune University
- Pune 411007
- India
| | | | - Amit Patil
- Department of Chemistry
- Savitribai Phule Pune University
- Pune 411007
- India
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Chadar D, Rao SS, Khan A, Gejji SP, Bhat KS, Weyhermüller T, Salunke-Gawali S. Benzo[α]phenoxazines and benzo[α]phenothiazine from vitamin K3: synthesis, molecular structures, DFT studies and cytotoxic activity. RSC Adv 2015. [DOI: 10.1039/c5ra08496b] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Novel benzo[α]phenoxazines and benzo[α]phenothiazine from vitamin K3 are cytotoxic against HeLa, MCF-7 cell lines and potential topoisomerase II inhibitors.
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Affiliation(s)
- Dattatray Chadar
- Department of Chemistry
- Savitribai Phule Pune University
- Pune 411007
- India
| | - Soniya S. Rao
- Department of Chemistry
- Savitribai Phule Pune University
- Pune 411007
- India
| | - Ayesha Khan
- Department of Chemistry
- Savitribai Phule Pune University
- Pune 411007
- India
| | - Shridhar P. Gejji
- Department of Chemistry
- Savitribai Phule Pune University
- Pune 411007
- India
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Chadar D, Rao SS, Gejji SP, Ugale B, Nagaraja CM, Nikalje M, Salunke-Gawali S. Regioselective synthesis of a vitamin K3 based dihydrobenzophenazine derivative: its novel crystal structure and DFT studies. RSC Adv 2015. [DOI: 10.1039/c5ra13169c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel regioselective synthesis of vitamin K3 based dihydrobenzophenazine is reported.
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Affiliation(s)
- Dattatray Chadar
- Department of Chemistry
- Savitribai Phule Pune University
- Pune 411007
- India
| | - Soniya S. Rao
- Department of Chemistry
- Savitribai Phule Pune University
- Pune 411007
- India
| | - Shridhar P. Gejji
- Department of Chemistry
- Savitribai Phule Pune University
- Pune 411007
- India
| | - Bharat Ugale
- Department of Chemistry
- Indian Institute of Technology
- Rupnagar-140001
- India
| | - C. M. Nagaraja
- Department of Chemistry
- Indian Institute of Technology
- Rupnagar-140001
- India
| | - Milind Nikalje
- Department of Chemistry
- Savitribai Phule Pune University
- Pune 411007
- India
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Pal S, Konkimalla VB, Kathawate L, Rao SS, Gejji SP, Puranik VG, Weyhermüller T, Salunke-Gawali S. Targeting a chemorefractory COLO205 (BRAF V600E) cell line using substituted benzo[α]phenoxazines. RSC Adv 2015. [DOI: 10.1039/c5ra14949e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Benzo[α]phenoxazine derivatives specifically toxic to a malignant COLO205 cell line with a BRAF mutation (V600E) and nontoxic to a non-malignant wild-type BRAF HEK293T cell line are studied.
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Affiliation(s)
- Sanjima Pal
- School of Biological Sciences
- National Institute of Science Education and Research (NISER)
- Bhubaneswar 751005
- India
| | - V. Badireenath Konkimalla
- School of Biological Sciences
- National Institute of Science Education and Research (NISER)
- Bhubaneswar 751005
- India
| | - Laxmi Kathawate
- Department of Chemistry
- Savitribai Phule Pune University
- Pune 411007
- India
| | - Soniya S. Rao
- Department of Chemistry
- Savitribai Phule Pune University
- Pune 411007
- India
| | - Shridhar P. Gejji
- Department of Chemistry
- Savitribai Phule Pune University
- Pune 411007
- India
| | - Vedavati G. Puranik
- Center for Material Characterization
- National Chemical Laboratory
- Pune 411008
- India
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