After publication of the article, the authors recently noticed unintentional errors in Figure 6. Three pairs of sub figures contain misplaced and identical images due to unintentional errors during the preparation of the relevant Figures for publication: (1) Figure 3C, upper panel, lane 3 (CD79a, IgM-group) vs. Figure 6A, lower panel, lane 1 (CCND1, CD19-/IgM-group); (2) Figure 3C, upper panel, lane 6 (CD79a, IgM + group) vs. Figure 6B, lower panel, lane 3 (CCND1, CD19+/IgM + group); (3) Figure 6C (ii), upper panel, lane 4 (IgM) vs. lane 5 (Pax5). Nevertheless, the unintentional errors do not change the conclusion or discussion of the article. The authors apologize for any inconvenience caused by these unintentional errors.