However, considering that non-classical targets of HSF1 have been implicated in various oncogenic properties of HSF1 [22,23,24], and that some targets of HSF1 do not contain the HSE sequences in their promoter regions [25,26], the involvement of HSF1 activity in KRIBB11-induced apoptosis remains to be resolved through further studies by focusing on various effector molecules of HSF1 in the extended lists of cancer cells. Here, HSF1 is linked to cancer.