Ring-opened tetrahydro-γ-carbolines display cytotoxicity and selectivity with histone deacetylase isoforms.
ID: CHEMBL3994606
Journal: Eur J Med Chem
Title: Ring-opened tetrahydro-γ-carbolines display cytotoxicity and selectivity with histone deacetylase isoforms.
Authors: Nepali K, Lee HY, Lai MJ, Ojha R, Wu TY, Wu GX, Chen MC, Liou JP.
Abstract: This study is focused on modification of the indole moiety and the N1-zinc binding domain of tubastatin A, and the effects of such changes on biological activity. Fourteen N-substituted indoles (5-18) were synthesized and structure-activity relationship studies indicated that the change of the tetrahydro-γ-carboline in tubastatin A led to substituted indoles (compounds 7, 11, and 15) which showed significant improvements of selective inhibition for HDAC6 over HDAC1 and HDAC2 in comparison to ACY1215, a compound undergoing clinical trials. In addition, attachment of different hydroxamic acid groups, the zinc binding motif at the N1 position, contributes to the antiproliferative activity in cancer cells. Several synthetic compounds exhibited potent growth inhibition in a broad spectrum of tumor cell lines, induced irreversible growth arrest capacities by suppressing colony formation ability and activated the apoptosis pathway. The data provide compelling evidence that our newly synthesized compounds with type B to D hydroxamic acid groups as the zinc binding motif at the N1 position are potent selective inhibitors of HDAC6 and could be investigated preclinically as potential anticancer drugs.
CiteXplore: 28038324
Patent ID: ---
Protein Target Summary
Total
7
Eukaryotes
N/A
Assay Summary
Total
18
B - Binding
F - Functional
Bioactivity Summary
Total
158
IC50
GI50
Ratio IC50
Activity
Inhibition
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