Purpose Chronic myelogenous leukemia (CML) is a hematological malignancy with increased proliferation of cells of the myeloid series. This can disrupt normal hematopoiesis. The 1-(2-(dimethylamino)acetyl)-rocaglaol (MQ-16) is a new synthetic flavagline compound that showed promising activity in chronic myeloid leukemia K562 cells. This study aims to analyze the underlying mechanisms of MQ-16 against CML. Methods Growth, cell cycle progression, and apoptosis were assessed in K562 cells following MQ-16 exposure by MTT assay and flow cytometry. The effect of MQ-16 on DNA strands between nucleosomes was examined by 1% agarose gel electrophoresis. PI3K/Akt/mTOR, JAK2/STAT3, and mitogen-activated protein kinase (MAPK) pathway-related proteins were detected in MQ-16–treated K562 cells by Western blot. Results MQ-16 significantly inhibited the proliferation of K562 cells and arrested the cell cycle at the G2/M phase in a time- and concentration-dependent manner. MQ-16 induced mitochondria-dependent apoptosis by downregulating the anti-apoptotic proteins Bcl-2 and Bcl-xL and induced time- and concentration-dependent DNA fragmentation. In addition, MQ-16 affected the expression of PI3K/Akt/mTOR, JAK2/STAT3, and MAPK pathway-related proteins. Conclusion In summary, MQ-16 appears to be a promising chemotherapeutic drug for treating CML.
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