Novel acridinedione derivatives: design, synthesis, SIRT1 enzyme and tumor cell growth inhibition studies |
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Authors: | Alvala Mallika Bhatnagar Shubhmita Ravi Alvala Jeankumar Variam Ullas Manjashetty Thimmappa H Yogeeswari Perumal Sriram Dharmarajan |
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Affiliation: | Drug Discovery Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science, Pilani-Hyderabad Campus, Hyderabad 500 078, India. |
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Abstract: | A new scaffold N-(9-(ortho/meta/para-(benzyloxy)phenyl)-3,3,6,6-tetramethyl-1,8-dioxo-1,2,3,4,5,6,7,8-octahydroacridin-10(9H)-yl) isonicotinamide (H1-3) was discovered as a hSIRT1 inhibitor through virtual screening of in-house database. Based on these hits, a library of compounds were designed, synthesized and tested for in vitro hSIRT1 activity. The most potent compound 4d in the series showed a significant inhibition of SIRT1 activity. Further antitumor studies of compound 4d, showed a dose dependent increase in acetylation of p53K382 and decrease in SIRT1 with an IC50 of 0.25 μM in MDA-MB231 breast cancer cell lines. Individual 3D-QSAR analysis using Schrödinger showed distribution of hydrophobic and non polar positive co-efficient at ortho position essential for bioactivity based on 4d. |
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