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- W2042783168 abstract "A series of 25 phenothiazines and structurally related compounds was investigated by QSAR (quantitative structure activity relationship) and 3D-QSAR methods with respect to their MDR (multidrug resistance) reversing activity in P388/ADR- murine leukemia cell line resistant to ADR (adriamycin). The objective was to outline structural properties important for the investigated activity. Different measures for MDR reversal were used and compared. Two 3D-QSAR approaches were applied-CoMFA (comparative molecular field analysis) and CoMSIA (comparative molecular similarity indices analysis). Both, neutral and protonated forms of the compounds were investigated. Molecular models with good predictive power were derived using a hydrophobic field alone and a combination of steric, hydrophobic, and hydrogen bond acceptor fields of the compounds. In the combined models highest contribution of the hydrogen bond acceptor field was noticed. Thus, the dominant role of the hydrophobic and hydrogen bond acceptor fields for MDR reversing activity of the investigated compounds was demonstrated. The structural regions responsible for the differences in anti-MDR activity were analyzed in respect to their hydrophobic, hydrogen bond acceptor and steric nature. The results may direct design of new phenothiazines and related compounds as MDR modulators." @default.
- W2042783168 created "2016-06-24" @default.
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- W2042783168 date "2003-07-01" @default.
- W2042783168 modified "2023-10-14" @default.
- W2042783168 title "QSAR and 3D-QSAR of phenothiazine type multidrug resistance modulators in P388/ADR cells" @default.
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- W2042783168 doi "https://doi.org/10.1016/s0968-0896(03)00222-0" @default.
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