Solid evidence in the literature has elucidated the dominant role of mot‐2 and HSP60 in cancer cell growth through mitochondrial protein homeostasis (Wadhwa et al., 2005) as well as their roles in cancer transformation (Czarnecka et al., 2006) and apoptosis (Ghosh et al., 2008; Yoo et al., 2010). Here, HSPA9 is linked to cancer.