HDAC4 and cancer: The human HDAC4 gene, which is located on chromosome 2q37.3 and produced 8980 bp mRNA, spans approximately 353.49 kb and is involved in various cancers as being targeted by numerous miRNAs.44, 45, 46, 47 In the present study, we illustrated the negative correlation between HDAC4 and miR‐140‐5p.