BRD4 and Burkitt lymphoma: Although BL cells are a heterogeneous lot with differences in the length of Ig/MYC translocation that reportedly translate to variable levels of MYC overexpression [43], BL cells in our hands (Fig. 1 and Figure S1, in File S1), and others [19], are uniformly susceptible to inhibition of MYC expression via Brd4 inhibition by JQ1.