Histone deacetylase inhibitor and use thereof

Abstract

To provide a novel apoptosis inducer, and a method of screening an apoptosis inducer. For example, an apoptosis inducer comprising inhibiting HDAC6 such as an antisense oligonucleotide to the gene of histone deacetylase 6 (HDAC6), and anti-cancer agent comprising this apoptosis inducer, and the present invention also provides a method of screening an apoptosis inducer that inhibits HDAC6, and more specifically a method of screening an apoptosis inducer said method comprising the steps of (1) determining whether or not a test substance inhibits histone deacetylase 6 (HDAC6) by using deacetylation of an acetylated substance that can be a substrate for histone deacetylase 6 (HDAC6) or decrease in the expression of histone deacetylase 6 (HDAC6) as an index; and (2) confirming, when inhibition is present, whether it induces apoptosis of the cell in vitro and/or in vivo.

Dependencies are inferred from the claim text.