1
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Andhare NH, Thopate Y, Shamsuzzama, Kumar L, Sharma T, Siddiqi M, Sinha AK, Nazir A. A facile tandem double-dehydrative-double-Heck olefination strategy for pot-economic synthesis of ( E )-distyrylbenzenes as multi-target-directed ligands against Alzheimer's disease employing C. elegans model. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.02.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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2
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Hussain MK, Singh DK, Singh A, Asad M, Ansari MI, Shameem M, Krishna S, Valicherla GR, Makadia V, Meena S, Deshmukh AL, Gayen JR, Imran Siddiqi M, Datta D, Hajela K, Banerjee D. A Novel Benzocoumarin-Stilbene Hybrid as a DNA ligase I inhibitor with in vitro and in vivo anti-tumor activity in breast cancer models. Sci Rep 2017; 7:10715. [PMID: 28878282 PMCID: PMC5587642 DOI: 10.1038/s41598-017-10864-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 08/16/2017] [Indexed: 11/21/2022] Open
Abstract
Existing cancer therapies are often associated with drug resistance and toxicity, which results in poor prognosis and recurrence of cancer. This necessitates the identification and development of novel therapeutics against existing as well as novel cellular targets. In this study, a novel class of Benzocoumarin-Stilbene hybrid molecules were synthesized and evaluated for their antiproliferative activity against various cancer cell lines followed by in vivo antitumor activity in a mouse model of cancer. The most promising molecule among the series, i.e. compound (E)-4-(3,5-dimethoxystyryl)-2H-benzo[h]chromen-2-one (19) showed maximum antiproliferative activity in breast cancer cell lines (MDA-MB-231 and 4T1) and decreased the tumor size in the in-vivo 4T1 cell-induced orthotopic syngeneic mouse breast cancer model. The mechanistic studies of compound 19 by various biochemical, cell biology and biophysical approaches suggest that the compound binds to and inhibits the human DNA ligase I enzyme activity that might be the cause for significant reduction in tumor growth and may constitute a promising next-generation therapy against breast cancers.
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Affiliation(s)
- Mohd Kamil Hussain
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute (CSIR-CDRI), Lucknow, 226031, India.,Department of Chemistry Govt. Raza Post Graduate College, Rampur, 244901, India
| | | | - Akhilesh Singh
- Biochemistry Division, CSIR-CDRI, Lucknow, 226031, India
| | - Mohd Asad
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute (CSIR-CDRI), Lucknow, 226031, India
| | - Mohd Imran Ansari
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute (CSIR-CDRI), Lucknow, 226031, India
| | - Mohammad Shameem
- Molecular and Structural Biology Division, CSIR-CDRI, Lucknow, 226031, India
| | - Shagun Krishna
- Molecular and Structural Biology Division, CSIR-CDRI, Lucknow, 226031, India
| | - Guru R Valicherla
- Academy of Scientific and Innovative Research (AcSIR), New Delhi, India.,Pharmacokinetics and Metabolism Division, CSIR-CDRI, Lucknow, 226031, India
| | - Vishal Makadia
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Raibarelly, India
| | - Sanjeev Meena
- Biochemistry Division, CSIR-CDRI, Lucknow, 226031, India
| | | | - Jiaur R Gayen
- Academy of Scientific and Innovative Research (AcSIR), New Delhi, India.,Pharmacokinetics and Metabolism Division, CSIR-CDRI, Lucknow, 226031, India
| | - Mohammad Imran Siddiqi
- Molecular and Structural Biology Division, CSIR-CDRI, Lucknow, 226031, India.,Academy of Scientific and Innovative Research (AcSIR), New Delhi, India
| | - Dipak Datta
- Biochemistry Division, CSIR-CDRI, Lucknow, 226031, India. .,Academy of Scientific and Innovative Research (AcSIR), New Delhi, India.
| | - Kanchan Hajela
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute (CSIR-CDRI), Lucknow, 226031, India. .,Academy of Scientific and Innovative Research (AcSIR), New Delhi, India.
| | - Dibyendu Banerjee
- Molecular and Structural Biology Division, CSIR-CDRI, Lucknow, 226031, India. .,Academy of Scientific and Innovative Research (AcSIR), New Delhi, India.
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3
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Phenylenevinylene oligomers by Mizoroki-Heck cross coupling reaction. Structural and optoelectronic characterization. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.12.032] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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4
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Olsen S, Baranov MS, Baleeva NS, Antonova MM, Johnson KA, Solntsev KM. pH-Sensitive fluorophores from locked GFP chromophores by a non-alternant analogue of the photochemical meta effect. Phys Chem Chem Phys 2016; 18:26703-26711. [DOI: 10.1039/c6cp02423h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the synthesis and characterization of a pH-sensitive fluorescence switch based on a conformationally-locked green fluorescent protein (GFP) chromophore.
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Affiliation(s)
- Seth Olsen
- School of Mathematics and Physics
- The University of Queensland
- Brisbane
- Australia
| | - Mikhail S. Baranov
- Institute of Bioorganic Chemistry
- Russian Academy of Sciences
- 117997 Moscow
- Russia
- Pirogov Russian National Research Medical University
| | - Nadezhda S. Baleeva
- Institute of Bioorganic Chemistry
- Russian Academy of Sciences
- 117997 Moscow
- Russia
- Pirogov Russian National Research Medical University
| | - Maria M. Antonova
- Institute of Bioorganic Chemistry
- Russian Academy of Sciences
- 117997 Moscow
- Russia
| | - Kenneth A. Johnson
- Institute for Cellular and Molecular Biology
- The University of Texas at Austin
- USA
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5
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Ji K, Wu H, Chen J, Shen J, Wang X, Wu H, Liu C. A selective chromofluorogenic chemodosimeter for fluoride ions based on distyrylbenzenes derivatives containing dual Si-O groups. LUMINESCENCE 2015; 31:924-8. [DOI: 10.1002/bio.3048] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 09/08/2015] [Accepted: 09/17/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Kai Ji
- School of Chemical and Environmental Engineering; Shanghai Institute of Technology; 201418 Shanghai People's Republic of China
| | - Haocheng Wu
- School of Chemical and Environmental Engineering; Shanghai Institute of Technology; 201418 Shanghai People's Republic of China
| | - Jinju Chen
- School of Chemical and Environmental Engineering; Shanghai Institute of Technology; 201418 Shanghai People's Republic of China
| | - Jiajie Shen
- School of Chemical and Environmental Engineering; Shanghai Institute of Technology; 201418 Shanghai People's Republic of China
| | - Xinyu Wang
- School of Chemical and Environmental Engineering; Shanghai Institute of Technology; 201418 Shanghai People's Republic of China
| | - Hongwei Wu
- School of Chemical and Environmental Engineering; Shanghai Institute of Technology; 201418 Shanghai People's Republic of China
| | - Chuanxiang Liu
- School of Chemical and Environmental Engineering; Shanghai Institute of Technology; 201418 Shanghai People's Republic of China
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6
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7
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Zhang L, Naumov P. Light- and Humidity-Induced Motion of an Acidochromic Film. Angew Chem Int Ed Engl 2015; 54:8642-7. [DOI: 10.1002/anie.201504153] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Indexed: 01/11/2023]
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8
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Choi MS, Gupta A, Seo JH, Velmathi S, Wilson JN, Park JS. Characteristic Fluorescence Response of (6-Hydroxy-2-naphthyl)ethenyl Pyridinium Dyes with Bovine Serum Albumin. B KOREAN CHEM SOC 2015. [DOI: 10.1002/bkcs.10055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Myung-Seok Choi
- Department of Materials Chemistry and Engineering; Konkuk University; Seoul 143-701 Korea
| | - Ankush Gupta
- Department of Organic Material and Polymer Engineering; Dong-A University; Busan 604-714 Korea
| | - Jung Hwa Seo
- Department of Materials Physics; Dong-A University; Busan 604-714 Korea
| | - S. Velmathi
- Department of Chemistry; National Institute of Technology; Tiruchirappalli 620 015 India
| | - James N. Wilson
- Department of Chemistry; University of Miami; Coral Gables FL 33124 USA
| | - Jong S. Park
- Department of Organic Material and Polymer Engineering; Dong-A University; Busan 604-714 Korea
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9
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Kumpf J, Freudenberg J, Schwaebel ST, Bunz UHF. Amine Sensing with Distyrylbenzenes and Their Hexamethylene-Linked Polymers: Spraying Them On. Macromolecules 2014. [DOI: 10.1021/ma500486u] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jan Kumpf
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer
Feld 270, 69120 Heidelberg, Germany
| | - Jan Freudenberg
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer
Feld 270, 69120 Heidelberg, Germany
| | - S. Thimon Schwaebel
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer
Feld 270, 69120 Heidelberg, Germany
| | - Uwe H. F. Bunz
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer
Feld 270, 69120 Heidelberg, Germany
- Centre of Advanced
Materials, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer
Feld 225, 69120 Heidelberg, Germany
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10
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Highly sensitive determination of ssDNA and real-time sensing of nuclease activity and inhibition based on the controlled self-assembly of a 9,10-distyrylanthracene probe. Anal Bioanal Chem 2013; 406:851-8. [DOI: 10.1007/s00216-013-7503-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2013] [Revised: 09/12/2013] [Accepted: 11/11/2013] [Indexed: 12/23/2022]
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11
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Xu S, Zhuang X, Pan X, Zhang Z, Duan L, Liu Y, Zhang L, Ren X, Ding K. 1-Phenyl-4-benzoyl-1H-1,2,3-triazoles as orally bioavailable transcriptional function suppressors of estrogen-related receptor α. J Med Chem 2013; 56:4631-40. [PMID: 23656512 DOI: 10.1021/jm4003928] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Estrogen-related receptor α is a potential candidate target for therapeutic treatment of breast cancer. We describe the discovery and structure-activity relationship study of a series of 1-phenyl-4-benzoyl-1H-1,2,3-triazoles as novel suppressors of ERRα transcriptional functions. The most promising compound, 2-aminophenyl-(1-(3-isopropylphenyl)-1H-1,2,3-triazol-4-yl)methanone (14n), potently suppressed the transcriptional functions of ERRα with IC50 = 0.021 μM in a cell-based reporter gene assay and also decreased both the mRNA levels and the protein levels of ERRα and the downstream targets. This compound inhibited the proliferation and migration of breast cancer cells with high level of ERRα. Preliminary pharmacokinetic studies suggested that it possessed a good pharmacokinetic profile with an oral bioavailability of 71.8%. The compounds may serve as novel small molecule probes for further validation of ERRα as a molecular target for anticancer drug development.
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Affiliation(s)
- Shilin Xu
- Institute of Chemical Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190 Kaiyuan Avenue, Guangzhou 510530, China
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12
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Hinderer F, Bunz UHF. The Photophysics of Pyridine-Derivatizedortho-,meta-, andpara-Dibutylamino Cruciforms. Chemistry 2013; 19:8490-6. [DOI: 10.1002/chem.201300211] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2013] [Indexed: 11/06/2022]
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13
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Adjaye-Mensah E, Gonzalez WG, Miksovska J, Wilson JN. Photophysical Characterization of a Benzo-Fused Analogue of Brooker’s Merocyanine: Solvent Polarity and pH Effects. J Phys Chem A 2012; 116:12470-5. [DOI: 10.1021/jp3106869] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Edward Adjaye-Mensah
- Department
of Chemistry, University of Miami, 1301
Memorial Drive, Coral Gables,
Florida 33146, United States
| | - Walter G. Gonzalez
- Department of Chemistry and
Biochemistry, Florida International University, 11200 SW Eighth Street, Miami, Florida 33199, United States
| | - Jaroslava Miksovska
- Department of Chemistry and
Biochemistry, Florida International University, 11200 SW Eighth Street, Miami, Florida 33199, United States
| | - James N. Wilson
- Department
of Chemistry, University of Miami, 1301
Memorial Drive, Coral Gables,
Florida 33146, United States
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14
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Shard A, Sharma N, Bharti R, Dadhwal S, Kumar R, Sinha AK. Tandem Heck/Decarboxylation/Heck Strategy: Protecting-Group-Free Synthesis of Symmetric and Unsymmetric Hydroxylated Stilbenoids. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201206346] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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15
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Shard A, Sharma N, Bharti R, Dadhwal S, Kumar R, Sinha AK. Tandem Heck/Decarboxylation/Heck Strategy: Protecting-Group-Free Synthesis of Symmetric and Unsymmetric Hydroxylated Stilbenoids. Angew Chem Int Ed Engl 2012; 51:12250-3. [DOI: 10.1002/anie.201206346] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2012] [Revised: 09/09/2012] [Indexed: 01/08/2023]
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16
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Lu H, Su F, Mei Q, Zhou X, Tian Y, Tian W, Johnson RH, Meldrum DR. A series of poly[N-(2-hydroxypropyl)methacrylamide] copolymers with anthracene-derived fluorophores showing aggregation-induced emission properties for bioimaging. ACTA ACUST UNITED AC 2011; 50:890-899. [PMID: 22287826 DOI: 10.1002/pola.25841] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A series of new poly[N-(2-hydroxypropyl)methacrylamide]-based amphiphilic copolymers were synthesized through a radical copolymerization of a monomeric/hydrophobic fluorophore possessing aggregation-induced emission (AIE) property with N-(2-hydroxypropyl)methacrylamide. Photophysical properties were investigated using UV-Vis absorbance and fluorescence spectrophotometry. Influences of the polymer structures with different molar ratios of the AIE fluorophores on their photophysical properties were studied. Results show that the AIE fluorophores aggregate in the cores of the micelles formed from the amphiphilic random copolymers and polymers with more hydrophobic AIE fluorophores facilitate stronger aggregations of the AIE segments to obtain higher quantum efficiencies. The polymers reported herein have good water solubility, enabling the application of hydrophobic AIE materials in biological conditions. The polymers were endocytosed by two experimental cell lines, human brain glioblastoma U87MG cells and human esophagus premalignant CP-A, with a distribution into the cytoplasm. The polymers are non-cytotoxic to the two cell lines at a polymer concentration of 1 mg/mL.
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Affiliation(s)
- Hongguang Lu
- Center for Biosignatures Discovery Automation, Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA
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17
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Tolosa J, Bryant JJ, Solntsev KM, Brödner K, Tolbert LM, Bunz UHF. Water-Soluble Distyrylbenzenes: One Core with Two Sensory Responses-Turn-On and Ratiometric. Chemistry 2011; 17:13726-31. [DOI: 10.1002/chem.201102402] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2011] [Indexed: 11/08/2022]
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18
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Nakajima H, Yasuda M, Shimizu K, Toyoshima N, Tsukahara Y, Kobayashi T, Nakamura S, Chiba K, Baba A. Stabilization of Excited State Using Through-Space Interaction between Independent π-Systems Mediated by aperi-Substituted Hydroxy Group in 1-Arylnaphthalenes: Unexpected Blue Emission of 1,3,5-Tris(peri-hydroxynaphthyl)benzene. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2011. [DOI: 10.1246/bcsj.20110139] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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19
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Zhang LN, Wu FY, Liu AH. Study of the interaction between 2,5-di-[2-(4-hydroxy-phenyl)ethylene]-terephthalonitril and bovine serum albumin by fluorescence spectroscopy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2011; 79:97-103. [PMID: 21439896 DOI: 10.1016/j.saa.2011.02.013] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2010] [Revised: 01/23/2011] [Accepted: 02/07/2011] [Indexed: 05/30/2023]
Abstract
A new compound, 2,5-di-[2-(4-hydroxy-phenyl)ethylene]-terephthalonitrile (DHPEPN), was synthesized. The interaction between bovine serum albumin (BSA) and DHPEPN in Tris-HCl buffer solution (pH 7.4) was investigated using fluorescence and UV-vis absorption spectroscopy. The mechanism of BSA fluorescence quenched by DHPEPN is discussed according to the Stern-Volmer equation. The binding constant and the thermodynamic parameters ΔH, ΔS, ΔG at different temperatures were calculated. The results indicate that the van der Waals interaction and hydrogen bonding play major roles in the binding process. The distance between BSA and DHPEPN is estimated to be 3.59 nm based on the Förster resonance energy transfer theory. The spectral changes of synchronous fluorescence and three-dimensional fluorescence suggest that both of the microenvironment of DHPEPN and the conformation of BSA are changed during binding between DHPEPN and BSA.
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Affiliation(s)
- Li-Na Zhang
- Department of Chemistry/Center of Analysis and Testing, Nanchang University, Nanchang, China
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20
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McGrier PL, Solntsev KM, Zucchero AJ, Miranda OR, Rotello VM, Tolbert LM, Bunz UHF. Hydroxydialkylamino Cruciforms: Amphoteric Materials with Unique Photophysical Properties. Chemistry 2011; 17:3112-9. [DOI: 10.1002/chem.201002865] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2010] [Indexed: 11/08/2022]
Affiliation(s)
- Psaras L. McGrier
- School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, GA 30332 (USA)
| | - Kyril M. Solntsev
- School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, GA 30332 (USA)
| | - Anthony J. Zucchero
- School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, GA 30332 (USA)
| | - Oscar R. Miranda
- Department of Chemistry, 710 North Pleasant St., University of Massachusetts Amherst, MA 01003 (USA)
| | - Vincent M. Rotello
- Department of Chemistry, 710 North Pleasant St., University of Massachusetts Amherst, MA 01003 (USA)
| | - Laren M. Tolbert
- School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, GA 30332 (USA)
| | - Uwe H. F. Bunz
- Organisch‐Chemisches Institut, Ruprecht‐Karls‐Universität, Im Neuenheimer Feld 270, 69120 Heidelberg (Germany), Fax: (+49) 6221548404
- School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, GA 30332 (USA)
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21
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Flaherty DP, Kiyota T, Dong Y, Ikezu T, Vennerstrom JL. Phenolic bis-styrylbenzenes as β-amyloid binding ligands and free radical scavengers. J Med Chem 2010; 53:7992-9. [PMID: 21038854 DOI: 10.1021/jm1006929] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Starting from bisphenolic bis-styrylbenzene DF-9 (4), β-amyloid (Aβ) binding affinity and specificity for phenolic bis-styrylbenzenes, monostyrylbenzenes, and alkyne controls were determined by fluorescence titration with β-amyloid peptide Aβ(1-40) and a fluorescence assay using APP/PS1 transgenic mouse brain sections. Bis-styrylbenzene SAR is derived largely from work on symmetrical compounds. This study is the first to describe Aβ binding data for bis-styrylbenzenes unsymmetrical in the outer rings. With one exception, binding affinity and specificity were decreased by adding and/or changing the substitution pattern of phenol functional groups, changing the orientation about the central phenyl ring, replacing the alkene with alkyne bonds, or eliminating the central phenyl ring. The only compound with an Aβ binding affinity and specificity comparable to 4 was its 3-hydroxy regioisomer 8. Like 4, 8 crossed the blood-brain barrier and bound to Aβ plaques in vivo. By use of a DPPH assay, phenol functional groups with para orientations seem to be a necessary, but insufficient, criterion for good free radical scavenging properties in these compounds.
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Affiliation(s)
- Daniel P Flaherty
- University of Nebraska Medical Center, College of Pharmacy, 986025 Nebraska Medical Center, Omaha, Nebraska 68198, USA
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22
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Zucchero AJ, Tolosa J, Tolbert LM, Bunz UHF. Bis(4â²-dibutylaminostyryl)benzene: Spectroscopic Behavior upon Protonation or Methylation. Chemistry 2009; 15:13075-81. [PMID: 19859919 DOI: 10.1002/chem.200900608] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Anthony J Zucchero
- School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, GA 30332, USA
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23
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Brombosz SM, Zucchero AJ, McGrier PL, Bunz UHF. Acidochromicity of Bisarylethynylbenzenes: Hydroxy versus Dialkylamino Substituents. J Org Chem 2009; 74:8909-13. [DOI: 10.1021/jo901811a] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Scott M. Brombosz
- School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, Georgia 30332
| | - Anthony J. Zucchero
- School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, Georgia 30332
| | - Psaras L. McGrier
- School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, Georgia 30332
| | - Uwe H. F. Bunz
- School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, Georgia 30332
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24
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Affiliation(s)
- Juan Tolosa
- School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, Georgia 30332-0400
| | - Kyril M. Solntsev
- School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, Georgia 30332-0400
| | - Laren M. Tolbert
- School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, Georgia 30332-0400
| | - Uwe H. F. Bunz
- School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, Georgia 30332-0400
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