WNT9A and B-cell chronic lymphocytic leukemia: Other Wnts such as Wnt4, Wnt5B, Wnt6, Wnt7B, Wnt9A, Wnt10A, Wnt14, and Wnt16 are robustly expressed in CLL B-cells and acute lymphoblastic leukemia (ALL) cells, whereas these can be scarcely detected in normal pre-B cells [90,91,92].