HDAC6 and hematologic disorder: Several studies have shown that abnormal expression or activity of HDAC6 is associated with a variety of diseases, including B cell-associated hematological malignancies (Conley et al., 2005; Marquard et al., 2009; Wang et al., 2011; Lwin et al., 2013; Mithraprabhu et al., 2014; Yan et al., 2017; Maharaj et al., 2018; Yan et al., 2018; Ran et al., 2020).