human aml cell lines u937 (DSMZ)
Structured Review
![A) Overall survival analysis of <t>AML</t> patients with low and high expression of CSNK2A1 (probe ID: 212072_s_at) from TCGA data (AML vs normal; accessed from BloodSplot database at https://www.fobinf.com/ ). B) The plot depicts the median difference (95% confidence interval) of CK2α ( CSNK2A1 ) expression in the presence or absence of mutations in the indicated gene calculated using Mann-Whitney tests. The gene mutations that significantly (p<0.05) associated with increased CSNK2A1 expression were shown along with the sample number for mutated (denoted by M) and wildtype normal (denoted by N) in the BeatAML cohort. C) Volcano plot shows the association of gene mutation with venetoclax activity (accessed from BeatAML database at https://www.vizome.org/aml2/inhibitor/ ). Increased sensitivity is indicated by red, increased resistance indicated by blue as determined by the effect size (X-axis). D) Correlation between CSNK2A1 (CK2α) and BCL2L1 (BCL-XL) gene expression levels from Beat AML patient samples as determined by both Spearman and Pearson correlation coefficients. E) Heatmap summarizing the average log 2 fold change of sgRNA abundance in kinase domain-focused CRISPR screening in <t>AML</t> <t>cell</t> lines (data adapted from ). F) Enrichment of individual sgRNAs for genes encoding CK2 catalytic subunit ( CSNK2A1 ) and regulatory subunit ( CSNK2B ), BCL-XL ( BCL2L1 ), MCL1, and TP53 plotted as log-fold change over control cells following 14 days of treatment with 0.5-1µM VEN in a CRISPR drop-out screening (data adopted from [ , ]). Genes encoding BCL-XL, MCL1, and TP53 were used as known controls that alter VEN activity. Data are presented as Mean ± SEM (n=4-5 sgRNAs targeting each gene). G ) Parental and VR-AML cell lines were treated with different concentrations of venetoclax for 48 h and assessed for cell viability using WST. H) The basal level expression of indicated genes was assessed in different AML cell lines by qRT-PCR. The data are presented as mean ± SEM (n=3 replicates from a representative run). *p<0.05 and **p<0.01 by unpaired t-test (Welch’s correction) denotes statistical significance. I ) Schematic presentation of AML cells profiling with BH3 peptides (activators: BIM, BID; and sensitizer: PUMA) for the assessment of cytochrome c (Cyt C) release. Created with BioRender.com . J) Molm-13 and Molm-13/VR cells were tested for Cyt C release by priming with BH3 peptides and calculated the delta priming. The data are presented as mean ± SD (n=3) and analyzed by two-way ANOVA (Sidak’s multiple comparisons test). *p<0.05, **p<0.01, ***p<0.001, and ****p<0.0001 are considered statistically significant. K) The surface expression of chemoresistance markers (CD47 and CD123) on Molm-13, Molm-13VR, <t>U937,</t> and PDX 2016-7 cells was analyzed using flow cytometry. L ) The basal level expression of CK2α, CK2 substrate phosphorylation, and other BCL2 family members in parental and VR-AML cell lines was analyzed by western blotting.](https://bio-rxiv-images-cdn.bioz.com/dois_ending_with_84/10__64898_slash_2025__12__24__696284/10__64898_slash_2025__12__24__696284___F2.large.jpg)
Human Aml Cell Lines U937, supplied by DSMZ, used in various techniques. Bioz Stars score: 96/100, based on 566 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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1) Product Images from "CK2 inhibitor, CX-4945, enhances BH3 priming and promotes apoptosis of venetoclax-resistant AML by targeting antiapoptotic proteins"
Article Title: CK2 inhibitor, CX-4945, enhances BH3 priming and promotes apoptosis of venetoclax-resistant AML by targeting antiapoptotic proteins
Journal: bioRxiv
doi: 10.64898/2025.12.24.696284
Figure Legend Snippet: A) Overall survival analysis of AML patients with low and high expression of CSNK2A1 (probe ID: 212072_s_at) from TCGA data (AML vs normal; accessed from BloodSplot database at https://www.fobinf.com/ ). B) The plot depicts the median difference (95% confidence interval) of CK2α ( CSNK2A1 ) expression in the presence or absence of mutations in the indicated gene calculated using Mann-Whitney tests. The gene mutations that significantly (p<0.05) associated with increased CSNK2A1 expression were shown along with the sample number for mutated (denoted by M) and wildtype normal (denoted by N) in the BeatAML cohort. C) Volcano plot shows the association of gene mutation with venetoclax activity (accessed from BeatAML database at https://www.vizome.org/aml2/inhibitor/ ). Increased sensitivity is indicated by red, increased resistance indicated by blue as determined by the effect size (X-axis). D) Correlation between CSNK2A1 (CK2α) and BCL2L1 (BCL-XL) gene expression levels from Beat AML patient samples as determined by both Spearman and Pearson correlation coefficients. E) Heatmap summarizing the average log 2 fold change of sgRNA abundance in kinase domain-focused CRISPR screening in AML cell lines (data adapted from ). F) Enrichment of individual sgRNAs for genes encoding CK2 catalytic subunit ( CSNK2A1 ) and regulatory subunit ( CSNK2B ), BCL-XL ( BCL2L1 ), MCL1, and TP53 plotted as log-fold change over control cells following 14 days of treatment with 0.5-1µM VEN in a CRISPR drop-out screening (data adopted from [ , ]). Genes encoding BCL-XL, MCL1, and TP53 were used as known controls that alter VEN activity. Data are presented as Mean ± SEM (n=4-5 sgRNAs targeting each gene). G ) Parental and VR-AML cell lines were treated with different concentrations of venetoclax for 48 h and assessed for cell viability using WST. H) The basal level expression of indicated genes was assessed in different AML cell lines by qRT-PCR. The data are presented as mean ± SEM (n=3 replicates from a representative run). *p<0.05 and **p<0.01 by unpaired t-test (Welch’s correction) denotes statistical significance. I ) Schematic presentation of AML cells profiling with BH3 peptides (activators: BIM, BID; and sensitizer: PUMA) for the assessment of cytochrome c (Cyt C) release. Created with BioRender.com . J) Molm-13 and Molm-13/VR cells were tested for Cyt C release by priming with BH3 peptides and calculated the delta priming. The data are presented as mean ± SD (n=3) and analyzed by two-way ANOVA (Sidak’s multiple comparisons test). *p<0.05, **p<0.01, ***p<0.001, and ****p<0.0001 are considered statistically significant. K) The surface expression of chemoresistance markers (CD47 and CD123) on Molm-13, Molm-13VR, U937, and PDX 2016-7 cells was analyzed using flow cytometry. L ) The basal level expression of CK2α, CK2 substrate phosphorylation, and other BCL2 family members in parental and VR-AML cell lines was analyzed by western blotting.
Techniques Used: Expressing, MANN-WHITNEY, Mutagenesis, Activity Assay, Gene Expression, CRISPR, Control, Quantitative RT-PCR, Flow Cytometry, Phospho-proteomics, Western Blot
Figure Legend Snippet: A) AML cell lines including both VEN-susceptible and resistant (Molm-13, Molm-13/VR, HL-60, HL-60/VR, U937), and AML PDX cells (2016-1, 2016-7) were treated with different concentrations of CX-4945 and VEN alone or in combination with indicated doses for 48 h. Cell viability was assessed using WST reagent and cell viability was calculated relative to vehicle-treated cells as 100%. B) ZIP synergy scores for CX-4945 and VEN combination in different AML cell lines and PDX cells were shown. ZIP scores greater than 10 indicates ‘synergy’, and 0-10 indicate ‘additive’ activity between CX-4945 and VEN. C-D) AML cells (Molm-13, Molm-13/VR, PDX 2016-7) were treated with CX-4945 and VEN alone or in combination for 24 h and stained with Annexin V/7AAD for analyzing apoptosis by flow cytometry ( C ). Relative apoptosis was calculated by normalizing to vehicle treated cells ( D ). The data are presented as mean ± SD (n=2-4). *p<0.05, **p<0.01, ***p<0.001, and ****p<0.0001 by one-way ANOVA (Holm-Sidak’s multiple comparisons test) denotes statistical significance. E) AML cell lines (Molm-13, Molm-13/VR) were treated with CX-4945 and VEN alone or in combination for 24 h and the surface expression of chemoresistance markers (CD47 and CD123) was analyzed by flow cytometry. F) Schematic showing the workflow for dynamic BH3 profiling to measure drug-induced priming of BH3 peptides in AML cells. The difference in Cyt c release (%) with and without drug treatment was presented as delta priming. Created with BioRender.com . G) Molm-13 and Molm-13/VR cells were tested for Cyt C release by priming with BH3 peptides with and without CX-4945 treatment and calculated the delta priming. The data are presented as mean ± SEM (n=2) and analyzed by two-way ANOVA (Sidak’s multiple comparisons test).
Techniques Used: Activity Assay, Staining, Flow Cytometry, Expressing
Figure Legend Snippet: A) The common mechanisms that govern cellular MCL-1 levels at transcription, translation, and post-translation levels are depicted. The signaling cascade mediated through CK2, PI3K/AKT, and mTOR regulate transcription and translation of MCL-1 isoforms (L-large, S-short, ES-extra short). MCL-1L (anti-apoptotic) undergoes caspase-mediated cleavage to form pro-apoptotic shorter MCL-1 isoforms (S & ES) that can induce cellular apoptosis independent of BAX and BAK. Created using BioRender.com . B) The levels of MCL-1 isoforms (L and ES) were measured by immunoblotting in AML cell lines and PDX cells after 24h of treatment with CX-4945 and VEN alone or in combination. C) Quantification of MCL-1 transcript levels after treatment with CX-4945 and VEN alone or in combination for 24h in indicated AML cell lines and PDX cells by qRT-PCR. The data are presented as mean ± SD (n=3) and analyzed by two-way ANOVA (Tukey’s multiple comparisons test). *p<0.05, **p<0.01, ***p<0.001, and ****p<0.0001 are considered statistically significant. D) Immunoblotting analysis of AML cell lines (Molm-13, Molm-13/VR, U937) and PDX (2016-1, 2016-7) cells after 24h of treatment with CX-4945 and VEN alone or in combination. β-Actin was used as a loading control. Representative blots from two to three independent experiments were shown.
Techniques Used: Western Blot, Quantitative RT-PCR, Control
Figure Legend Snippet: A) Principal component analysis (PCA) plot showing the distribution of Molm-13 (parental) versus Molm-13/VR (with and without drug treatment for 24h) AML cell lines (n=2 out of three replicates). B) Heatmap showing the hierarchical clustering (k-means) of most variable genes (n=2000) in Molm-13 and Molm-13/VR AML cell lines transcriptome. C-D) Dot plot displaying the top-ranked functional pathways (MSigDB hallmark gene set) overrepresented in different gene clusters obtained with k-means clustering as shown in ‘B’ ( C ) or the differentially expressed genes with fold change >1.5 and adj-p <0.05 ( D ). E) Gene-Concept network analysis depicting the gene-to-gene interconnection in the top-ranked functional pathways (MSigDB hallmark gene set) overrepresented with significant differentially expressed genes in Molm-13/VR cells with CX+VEN combo treatment (control vs. Combo). Node size refers to the number of genes in the enriched pathway. Genes shared between edges refer to terms belonging to multiple pathophysiological categories. F) Principal component analysis (PCA) plot showing the distribution of PDX 2016-7 (with and without drug treatment for 24h) AML cells (n=3). G) Heatmap showing the hierarchical clustering (k-means) of most variable genes (n=2000) in PDX 2016-7 AML cells transcriptome. H-I) Dot plot displaying the top-ranked functional pathways (MSigDB hallmark gene set) overrepresented in different gene clusters obtained with k-means clustering as shown in ‘G’ ( H ) or the differentially expressed genes with fold change >1.5 and adj-p <0.05 ( I ). J) Heatmap showing the expression profile of genes highly expressed in VEN non-responders (adapted from ), p53 target genes, and BCL2-family members (anti-apoptotic and pro-apoptotic) in PDX 2016-7 cells.
Techniques Used: Functional Assay, Control, Expressing
Figure Legend Snippet: A) Schematic depicting the treatment plan in AML patient-derived xenograft (PDX) mouse model. Similar scheme followed for cell line-derived xenograft (CDX) mice except the analysis after two-weeks of treatment. The NRG-S mice were irradiated and intravenously injected with AML cell lines Molm-13VR (0.25×10 6 cells/mouse), U937 (1×10 4 cells/mouse), and PDX 2016-7 (0.5×10 6 cells/mouse) and randomized into experimental groups (Vehicle, CX-4945, VEN, and CX+VEN Como). The drug treatment started after one week of cell transplantation and followed up for survival analysis or analysis after two-weeks of treatment (only for PDX). B-F) After two weeks of drug treatment, mice injected with PDX 2016-7 cells were sacrificed and spleen weight was recorded ( B ). The cells collected from spleens were analyzed by flow cytometry to analyze percent hCD45 positive cells ( C ). D-F) CBC analysis was performed on PDX 2016-7 mice after two-weeks of drug treatment by Hemavet analyzer. The data for B-F are presented as mean ± SD (n=7-8) and analyzed by one-way ANOVA (Tukey’s multiple comparisons test). *p<0.05, **p<0.01, ***p<0.001, and ****p<0.0001 indicates statistical significance, while ‘ns’ denotes ‘not significant’. G) Immunoblotting analysis of spleen cells collected from PDX 2016-7 mice after two-weeks of treatment with CX-4945, VEN, and CX+VEN combo. The data for three different experimental animals was presented. H-J) Kaplan-Meyer survival analysis of 2016-7 PDX ( H ), Molm-13/VR CDX ( I ), and U937 CDX ( J ) mice after treatment with CX-4945, VEN and CX+VEN combo. The overall median survival (MS) days for each experimental group of PDX and CDX mice were provided next to the legend. *p<0.05, **p<0.01 and ***p<0.001 by Gehan-Breslow-Wilcoxon test indicates statistical significance.
Techniques Used: Derivative Assay, Irradiation, Injection, Transplantation Assay, Flow Cytometry, Western Blot
