MCL1 and B-cell chronic lymphocytic leukemia: Also it was covered by Bresin et al46 that over‐expressed miR‐181b might lower the expression of anti‐apoptosis proteins (eg, TCL1, Bcl2 and Mcl1) within chronic lymphocytic leukaemia (CLL) cells, and meanwhile, CLL cells’ apoptosis was evidently induced.