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Bosca F. Seeking to Shed Some Light on the Binding of Fluoroquinolones to Albumins. J Phys Chem B 2012; 116:3504-11. [DOI: 10.1021/jp208930q] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Francisco Bosca
- Instituto
de Tecnología Química
UPV - CSIC, Universidad Politécnica de Valencia, Avda de los Naranjos s/n, 46022 Valencia,
Spain
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Bose S, Wijeratne AB, Thite A, Kraus GA, Armstrong DW, Petrich JW. Influence of Chiral Ionic Liquids on Stereoselective Fluorescence Quenching by Photoinduced Electron Transfer in a Naproxen Dyad. J Phys Chem B 2009; 113:10825-9. [DOI: 10.1021/jp904311b] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Sayantan Bose
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, and Department of Chemistry and Biochemistry, University of Texas, Arlington, Box 19065, Arlington, Texas 76019
| | - Aruna B. Wijeratne
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, and Department of Chemistry and Biochemistry, University of Texas, Arlington, Box 19065, Arlington, Texas 76019
| | - Aniket Thite
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, and Department of Chemistry and Biochemistry, University of Texas, Arlington, Box 19065, Arlington, Texas 76019
| | - George A. Kraus
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, and Department of Chemistry and Biochemistry, University of Texas, Arlington, Box 19065, Arlington, Texas 76019
| | - Daniel W. Armstrong
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, and Department of Chemistry and Biochemistry, University of Texas, Arlington, Box 19065, Arlington, Texas 76019
| | - Jacob W. Petrich
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, and Department of Chemistry and Biochemistry, University of Texas, Arlington, Box 19065, Arlington, Texas 76019
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Adhikary R, Bose S, Mukherjee P, Thite A, Kraus GA, Wijeratne AB, Sharma PS, Armstrong DW, Petrich JW. Influence of Chiral Ionic Liquids on the Excited-State Properties of Naproxen Analogs. J Phys Chem B 2008; 112:7555-9. [DOI: 10.1021/jp711508b] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Ramkrishna Adhikary
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, and Department of Chemistry and Biochemistry, University of Texas, Arlington, Box 19065, Arlington, Texas 76019
| | - Sayantan Bose
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, and Department of Chemistry and Biochemistry, University of Texas, Arlington, Box 19065, Arlington, Texas 76019
| | - Prasun Mukherjee
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, and Department of Chemistry and Biochemistry, University of Texas, Arlington, Box 19065, Arlington, Texas 76019
| | - Aniket Thite
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, and Department of Chemistry and Biochemistry, University of Texas, Arlington, Box 19065, Arlington, Texas 76019
| | - George A. Kraus
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, and Department of Chemistry and Biochemistry, University of Texas, Arlington, Box 19065, Arlington, Texas 76019
| | - Aruna B. Wijeratne
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, and Department of Chemistry and Biochemistry, University of Texas, Arlington, Box 19065, Arlington, Texas 76019
| | - Pritesh S. Sharma
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, and Department of Chemistry and Biochemistry, University of Texas, Arlington, Box 19065, Arlington, Texas 76019
| | - Daniel W. Armstrong
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, and Department of Chemistry and Biochemistry, University of Texas, Arlington, Box 19065, Arlington, Texas 76019
| | - Jacob W. Petrich
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, and Department of Chemistry and Biochemistry, University of Texas, Arlington, Box 19065, Arlington, Texas 76019
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Lhiaubet-Vallet V, Boscá F, Miranda MA. Stereodifferentiating Drug−Biomolecule Interactions in the Triplet Excited State: Studies on Supramolecular Carprofen/Protein Systems and on Carprofen−Tryptophan Model Dyads. J Phys Chem B 2006; 111:423-31. [PMID: 17214494 DOI: 10.1021/jp066968k] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Stereoselective interaction between a chiral nonsteroidal antiinflammatory drug, namely carprofen (CP), and human serum albumin (HSA) was studied, and the results were compared with those obtained with model dyads. In the presence of albumin the same triplet-triplet transition was detected for both CP stereoisomers; however, time-resolved measurements revealed a remarkable stereodifferentiation in the CP/HSA interaction. For each stereoisomer, the decay dynamics evidenced the presence of two components with different lifetimes that can be correlated with complexation of CP to the two possible albumin binding sites (site I and site II). This assignment was confirmed by using ibuprofen, a site II displacer. Thus, the shorter lived components, for which stereodifferentiation was more important (tauR/tauS ca. 4), were ascribed to the CP triplet state in site I; the lifetime shortening can be attributed to electron-transfer quenching by the only tryptophan (Trp) of the protein. Laser flash photolysis of model dyads containing covalently linked CP and Trp revealed formation of the expected Trp radical cation, providing support for such a mechanism. Moreover, significant stereodifferentiation was observed between the (R)- and (S)-CP-Trp dyads. In the case of CP/HSA complexes, as well as in the model compounds, the stereodifferentiation detected in the decays is in good agreement with that observed in the formation of the only CP photoproduct, resulting from a photodehalogenation process. Moreover, stereodifferentiation was also found to occur for the photobinding of CP to the protein.
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Affiliation(s)
- Virginie Lhiaubet-Vallet
- Instituto de Tecnología Química UPV-CSIC, Universidad Politécnica de Valencia, Avenida de Los Naranjos, s/n, 46022 Valencia, Spain
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