Quantitative structure-cytotoxicity relationship analysis of phenoxazine derivatives by semiempirical molecular-orbital method.

Quantitative structure-cytotoxicity relationship analysis of phenoxazine derivatives by semiempirical molecular-orbital method. Research Abstract Details 

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Quantitative structure-cytotoxicity relationship analysis of phenoxazine derivatives by semiempirical molecular-orbital method. Abstract Text:

Mariko Ishihara,Masami Kawase,Gunnar Westman,Kristin Samuelsson,Noboru Motohashi,Hiroshi Sakagami,Mariko Ishihara,Masami Kawase,Gunnar Westman,Kristin Samuelsson,Noboru Motohashi,Hiroshi Sakagami,

A semiempirical molecular-orbital method (CAChe) was applied to delineate the relationship between the cytotoxicity (evaluated by 50% cytotoxic concentration, CC50) of fifteen phenoxazine derivatives and eleven physical parameters (descriptors). Most of the phenoxazine derivatives had extended and planar structure. The cytotoxic activity of phenoxazines against the human oral squamous cell carcinoma HSC-2 and HSC-4 cells correlated to electron affinity, absolute hardness (eta), absolute electron negativity (chi) and octanol-water distribution coefficient (log-P). However, only log-P was correlated to CC50 in the HSC-3 cells, whereas only heat of formation and log-P were correlated to CC50 in the human promyelocytic leukemia HL-60 cells. The cytotoxic activity of the phenoxazine derivatives became maximum at the log-P = 5.9. Their cytotoxicity strongly depended on the chi value, but not on the eta value. Compounds with relatively higher cytotoxicity showed higher chi value (chi > 5.28), whereas compounds with relatively lower cytotoxicity showed lower chi value (chi < 4.27). These data suggest that appropriate chemical descriptors should be selected to estimate the cytotoxicity of phenoxazines, depending on the target cells.

Quantitative structure-cytotoxicity relationship analysis of phenoxazine derivatives by semiempirical molecular-orbital method. Publishing Authors By Initials

M Ishihara,M Kawase,G Westman,K Samuelsson,N Motohashi,H Sakagami,M Ishihara,M Kawase,G Westman,K Samuelsson,N Motohashi,H Sakagami,

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MEDLINE DATE: 2007 Nov-Dec

Quantitative structure-cytotoxicity relationship analysis of phenoxazine derivatives by semiempirical molecular-orbital method. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Anticancer research

VOLUME: 27

Page Numbers: 4053-7

Journal Abbreviation: Anticancer Res.

ISSN: 0250-7005

DAY: 29

MONTH: 01

YEAR: 2008

Quantitative structure-cytotoxicity relationship analysis of phenoxazine derivatives by semiempirical molecular-orbital method. Information

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LANGUAGE: eng

NlmUniqueID: 8102988

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Grant and Affiliation Information for Quantitative structure-cytotoxicity relationship analysis of phenoxazine derivatives by semiempirical molecular-orbital method.

AFFILIATION: Division of Basic Chemistry, Department of Oral Biology and Tissue Engineering, Meikai University School of Dentistry, Sakado, Saitama 350-0283, Japan. mariko@dent.meikai.ac.jp

Country: Greece

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MEDLINETA: Anticancer Res

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