Journal: EMBO Molecular Medicine
Article Title: Dual targeting of CDK6 and LSD1 is synergistic and overcomes differentiation blockade in AML
doi: 10.1038/s44321-025-00296-2
Figure Lengend Snippet: ( A ) Experimental design for the treatment of AML cells. AML cells, cocultured with HS-5 stromal cells, were treated for 4 days with palbociclib at 0.5 μM and/or TCP at 5 μM, and analyzed by flow cytometry and May-Grünwald–Giemsa staining. ( B ) The percentage of MV4-11 cells expressing CD11b ( n = 3), CD14 ( n = 3) or CD86 ( n = 4) myeloid markers was quantified by flow cytometry following the indicated treatments. Ctrl control, TCP tranylcypromine, Palbo palbociclib, Combo is the combination of palbociclib with tranylcypromine. The exact adjusted p values were as follows: Left panel, Ctrl vs Combo p < 0.0001, TCP vs Combo p = 0.0001, Palbo vs Combo p = 0.0001. Middle panel: Ctrl vs Combo p = 0.0001, TCP vs Combo p = 0.0001, Palbo vs Combo p = 0.0008. Right panel: Ctrl vs Combo p = 0.0002, TCP vs Combo p = 0.0003, Palbo vs Combo p = 0.0023. ( C – E ) Expression of the late monocytic marker CD86 on MOLM-14 ( C ) ( n = 3), PL-21 ( D ) ( n = 3), and THP-1 ( E ) ( n = 3) AML cell lines. The percentage of cells expressing CD86 was quantified by flow cytometry following the indicated treatments. The exact adjusted p values were as follows: ( C ) Ctrl vs Combo p = 0.0003, TCP vs Combo p = 0.0005, Palbo vs Combo p = 0.0019. ( D ) Ctrl vs Combo p < 0.0001, TCP vs Combo p < 0.0001, Palbo vs Combo p = 0.0117, Ctrl vs Palbo p = 0.0005, TCP vs Palbo p = 0.0012. ( E ) Ctrl vs Combo p = 0.0005, TCP vs Combo p = 0.0019, Palbo vs Combo p = 0.0098, Ctrl vs Palbo p = 0.0297. ( F ) Cell morphology of the AML cell lines following the treatments. AML cell lines were stained with May-Grünwald–Giemsa. Cells were observed under a Zeiss Apotome microscope. The indicated scale is 50 µm. ( G ) Primary AML patient cells were treated with the indicated treatments for 96 h. After treatment, cells were analyzed by flow cytometry for the expression of CD11b ( n = 17) and CD86 ( n = 14). Each colored dot represents a sample. Exact adjusted pvalues: left panel, Ctrl vs TCP p = 0.0070, Ctrl vs Palbo p = 0.0059, Ctrl vs Combo p < 0.0001, TCP vs Combo p = 0.0004, Palbo vs Combo p = 0.0005; right panel, Ctrl vs Combo p < 0.0001, TCP vs Combo p = 0.0001, Palbo vs Combo p = 0.0022. ( H ) May-Grünwald–Giemsa staining of five primary AML patient samples following the indicated treatments. The indicated scale is 50 µm. Histograms indicate the mean of independent experiments ± SD. Statistical analyses were performed using a one-way ANOVA and followed by Tukey’s test. * p < 0.05, ** p < 0.01, *** p < 0.001, and **** p < 0.0001.
Article Snippet: The human AML cell lines PL-21 (ACC 536) and SKM1 (ACC 547) were obtained from DSMZ, and the human AML cell line THP-1 (TIB-202) was purchased from ATCC.
Techniques: Flow Cytometry, Staining, Expressing, Control, Marker, Microscopy