When transfected into HeLa cells at individual concentrations of 16.7 nM, they achieved a 10-20-fold (miR-92) or 200–400-fold (miR-17/20a, 18a, 19a/19b) overexpression (Figure 3), far exceeding the 3–5-fold increase that was sufficient to drive B cell lymphoma development in mice (Jin et al., 2013), as well as the 2–36-fold increase found in biopsies of human Burkitt's lymphomas, which consistently exhibit activation of the c-Myc-miR-17~92 axis (Schmitz et al., 2012). Here, MYC is linked to Burkitt lymphoma.