Lavendamycin antitumor agents: structure-based design, synthesis, and NAD(P)H:quinone oxidoreductase 1 (NQO1) model validation with molecular docking and biological studies.
A 1H69 crystal structure-based in silico model of the NAD(P)H:quinone oxidoreductase 1 (NQO1) active site has been developed to facilitate NQO1-directed lavendamycin antitumor agent development. Lavendamycin analogues were designed as NQO1 substrates utilizing structure-based design criteria. Computational docking studies were performed using the model to predict NQO1 substrate specificity. Designed N-acyllavendamycin esters and amides were synthesized by Pictet-Spengler condensation. Metabolism and cytotoxicity studies were performed on the analogues with recombinant human NQO1 and human colon adenocarcinoma cells (NQO1-deficient BE and NQO1-rich BE-NQ). Docking and biological data were found to be correlated where analogues 12, 13, 14, 15, and 16 were categorized as good, poor, poor, poor, and good NQO1 substrates, respectively. Our results demonstrated that the ligand design criteria were valid, resulting in the discovery of two good NQO1 substrates. The observed consistency between the docking and biological data suggests that the model possesses practical predictive power.
Hassani
Mary
M
Center for Environmental Health Sciences, Department of Biomedical and Pharmaceutical Sciences, The University of Montana, Missoula, MT 59812, USA.
Cai
Wen
W
Koelsch
Katherine H
KH
Holley
David C
DC
Rose
Anthony S
AS
Olang
Fatemeh
F
Lineswala
Jayana P
JP
Holloway
William G
WG
Gerdes
John M
JM
Behforouz
Mohammad
M
Beall
Howard D
HD
D000970:Antineoplastic Agents / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D001665:Binding Sites; D045744:Cell Line, Tumor; D045304:Cytochromes c / Q000737:chemistry; D004354:Drug Screening Assays, Antitumor; D006801:Humans; D008958:Models, Molecular; D016660:NAD(P)H Dehydrogenase (Quinone) / Q000737:chemistry*; D011485:Protein Binding; D013308:Streptonigrin / Q000031:analogs & derivatives* / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology; D013329:Structure-Activity Relationship
D000970:Antineoplastic Agents; D013308:Streptonigrin; C034566:lavendamycin; D045304:Cytochromes c; D016660:NAD(P)H Dehydrogenase (Quinone); C447479:NQO1 protein, human