In Vitro: 8-Azaadenosine targets ADAR (adenosine deaminases acting on double-stranded RNA) activity only and does not affect ADAR1 mRNA levels. 8-Azaadenosine (10-25 nM) restores let-7 miRNA biogenesis commensurate with a reduction in ADAR1 expression, RNA editing activity and LIN28B expression in JAK2/BCR-ABL1 transduced progenitors after two weeks in stromal co-culture. 8-Azaadenosine (10, 100 nM) shows no effect on BCR-ABL and JAK2 signaling, as demonstrated by qRT-PCR analysis and p-CRKL and p-STAT5a Western blot analysis. 8-Azaadenosine (0.1, 0.5, 1, 2 µM; 5 days) decreases cell viability/proliferation in a dose-dependent manner in TPC1 and Cal62 cells. 8-Azaadenosine (1, 2 µM; 16 hours) impedes invasion and migration of TPC1 and Cal62 cells. 8-Azaadenosine (1, 2 µM) inhibits the editing activity in TPC1 and Cal62 cells. By contrast, ADAR1 mRNA levels remains stable in both cells lines.