Abstract:
:To find novel non-hydroxamate histone deacetylase (HDAC) inhibitors, a series of compounds modeled after suberoylanilide hydroxamic acid (SAHA) was designed and synthesized. In this series, compound 7, in which the hydroxamic acid of SAHA is replaced by a thiol, was found to be as potent as SAHA, and optimization of this series led to the identification of HDAC inhibitors more potent than SAHA. In cancer cell growth inhibition assay, S-isobutyryl derivative 51 showed strong activity, and its potency was comparable to that of SAHA. The cancer cell growth inhibitory activity was verified to be the result of histone hyperacetylation and subsequent induction of p21(WAF1/CIP1) by Western blot analysis. Kinetical enzyme assay and molecular modeling suggest the thiol formed by enzymatic hydrolysis within the cell interacts with the zinc ion in the active site of HDACs.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Suzuki T,Nagano Y,Kouketsu A,Matsuura A,Maruyama S,Kurotaki M,Nakagawa H,Miyata Ndoi
10.1021/jm049207jkeywords:
subject
Has Abstractpub_date
2005-02-24 00:00:00pages
1019-32issue
4eissn
0022-2623issn
1520-4804journal_volume
48pub_type
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