Endoplasmic Reticulum Stress Signaling Comprises a G9a Inhibitor Tolerance Pathway and PERK Inhibition Increases Anti-Leukemia Activity of G9a Inhibitor in Leukemia Cells and Leukemia Stem-like Cells

Conclusion: These data demonstrated that PERK-eIF2α activation has a pro-survival function to G9a inhibitor in leukemia cells and mediates resistance of AML stem cells to G9a inhibitor treatment. The PERK-eIF2α phosphorylation arm may represent a suitable target for combating resistance to G9a inhibitor in AML. The mechanisms underlying the increased sensitivity of AML cells with PERK inhibition to G9a inhibitor are unclear at present and are needed to define in further studies.DisclosuresNo relevant conflicts of interest to declare.

Source: Blood - November 21, 2018 Category: Hematology Authors: Jang, J., Eom, J.-I., Jeung, H.-k., Seol, S.-Y., Chung, H., Kim, Y. R., Cheong, J.-W., Min, Y. H. Tags: 604. Molecular Pharmacology and Drug Resistance in Myeloid Diseases: Poster I Source Type: research