Oncotarget: ATM inhibition overcomes resistance to histone deacetylase inhibitor

(Impact Journals LLC) The cover for issue 37 of Oncotarget features Figure 7, "The combination of romidepsin and KU60019 is synergistic in a xenograft model of MCL," by Scotto, et al. which reported that the antiproliferative effect induced by histone deactylase inhibitors is associated with the up-regulated expression of the cyclin-dependent kinase inhibitor p21. Paradoxically, the increased expression of p21 correlates with a reduced cell killing to the drug.