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Histone deacetylase (HDAC) inhibitors (HDIs) have therapeutic potentials for treating cancer and other diseases. Modulation of gene expression by HDIs is a major mechanism underlying their therapeutic effects. A novel class of HDIs with a previously undescribed benzoylhydrazide scaffold has been discovered through a high throughput screening campaign. Using microarray profiling of gene expression, we have previously demonstrated that treatment of breast cancer cells with a lead benzoylhydrazide HDI UF010 results in cell cycle arrest and apoptosis, likely through activation of tumor suppression pathways with concurrent inhibition of oncogenic pathways. In this brief report, we show methodological and analytical details and discuss additional pathways such as immune signaling that are affected by UF010. Raw and processed data from the microarray were deposited in NCBI's Gene Expression Omnibus (GEO) database under the accession number: GSE56823.

Microarray gene expression profiling reveals potential mechanisms of tumor suppression by the class I HDAC-selective benzoylhydrazide inhibitors