Bcr-Abl

Combinational treatment of kinase inhibitors induces the similar phenotype produced by PP1. All images are lateral view with dorsal to the top and anterior to the left. The combinational treatment of Dasatinib (D) or U0126 (U) with Sunitinib (SU),PTK787 (PTK), or ZM323881 (Z) resulted in the shrinkage of dorsal aorta.

THOC5 phospho-Y225 levels were assessed in the populations shown by flow cytometry following 24 h treatment with 5 μM imatinib, 150 nM dasatinib or 5 μM nilotinib. Results are displayed as mean fluorescence intensity (n= 4) ±s.e.m.

Senescence induction upon PKCι depletion combined with aurora kinase inhibition. ( a) MCF7 cells were transfected as above to deplete PKCι . Two days after transfection, cells were treated for the indicated time period with 400 n M VX-680. Medium with VX-680 was then removed and fresh medium was added. Cells were stained for SA-b -gal activity 5 days after the start of transfection.* indicates a P value <0.05. ( b) MCF7 cells were treated as above. Five days after transfection, cells were fixed and assessed for the presence of gH2AX foci by immunofluorescence microscopy. (c, d) MCF7 cells were treated with dimethyl sulfoxide (DMSO) control or 400 n M VX-680 for the indicated time periods. Total cell lysates were then analyzed by western blotting for levels of p21 and GAPDH (as loading control). A representative blot is shown in panel c. Quantitation of changes in p21 levels (normalized to vehicle-treated controls) is shown in panel d. The data shown are the means ±s.e. of three independent experiments.

 

 

Inhibition of thymidine (a and b) and cytarabine (c and d) uptake with imatinib. K562 cells (a and c) and MEG-01 cells (b and d) were incubated at 37 ◦C for 15 min with imatinib transport buffer, and then incubated with 0.5 Ci of [3H] thymidine or [3H] cytarabine for an additional 5 min in presence of imatinib. Cells were then washed 3 times, lysed and radioactivity associated to cell pellets was quantified. DMSO, dimethylsulfoxide; DPD, dipyridamole.

Effect of nilotinib on Bcr-Abl kinase activity in ABCB1- and ABCG2- overexpressing CD34⁺CD38^- cells. K562 parental cells and CD34⁺CD38^- subpopulation isolated from K562 cells were treated with nilotinib at 0.01, 0.1 and 1.0 umol/L for 12 h. Equal amount of protein was loaded for western blot analysis as described in the Experimental section. The experiments were repeated at least three times independently, and a representative experiment is shown.

A,IC50 of Bosutinib that block ANDV-induced EC permeability. Endothelial cells were ANDV infected, and 3 days postinfection the permeability of cells in response to VEGF addition was determined in the presence or absence of increasing amounts of kinase inhibitor. The effect of inhibitors is presented as the percentage of ANDV-induced permeability of inhibitor-treated monolayers 3 days postinfection and 30 min post-VEGF and FITC-dextran addition. B, VEGFR2-Src inhibitors block ANDV-induced permeability. Endothelial cells were plated on vitronectin-coated Transwell inserts and infected at an MOI of 0.5 in triplicate with ANDV. Three days postinfection, the permeability of ANDV- and mock-infected endothelial cell monolayers was determined as described for Fig. 1 at indicated times in the presence or absence of Bosutinib .

Mice bearing subcutaneous allografts of conditional patched mutant tumor cells were treated twice weekly with vehicle (saline) or 30 mg/kg PHA-739358. (B)Images of tumors. (C) Tumor weights. Each point represents a single tumor, and grey lines represent mean tumor weights, which were significantly different between vehicle and PHA-739358 treated mice (p < 0.05, based on paired two-tailed t-test).

HEL cells were treated with 0.5, 1 or 5 uM of AT9283 or left untreated for 3 hrs. The expression and phosphorylation state of STAT5 (P-STAT5) and Jak2 (P-Jak2) was assessed by Western blot immunodetection.

Protein expression by western blot analysis of cell lysates from MCF-7, TAM^R-4 and 164^R-7 cells treated for 3 days with vehicle (0.1% DMSO), 1 uM or 1.5 uM WP1130.

(A) The effect of bafetinib at 3 μM on the expression levels of ABCB1 in SW620/Ad300 cells for 24, 48 and 72 h. (B) The effect of bafetinib at 3 μM on the expression level of ABCG2 in NCI-H460/MX20 cells for 24, 48 and 72 h. Equal amounts of total cell lysate were used for each sample. The effect of bafetinib at 3 μM on the subcellular localization of ABCB1 in ABCB1-overexpressing (C) SW620/Ad300 cells and (D) HEK/ABCB1 cells for 24, 48 and 72 h. The effect of bafetinib at 3 μM on the subcellular localization of ABCG2 in ABCG2-overexpressing (E) NCI-H460/MX20 cells and (F) HEK/ABCG2-R482 cells. Scale bar, 10 μm. PI (propidium Iodide, red) counterstains the nuclei.

Western blot analysis of p-histone and histone. 0-10μM KW2449 was added.

 

PP121 induces apoptosis in ATC cells. CAL62 cells were treated with PP121 at the indicated concentrations for 48 h, followed by PI staining. The nuclei were stained with Hoechst and analyzed using a fluorescent microscope. The representative images are shown.

A, HeLa cells were treated with DMSO, Taxol (100 nM for 16 h), or Nocodazole (Noco, 100 ng/ml for 16 h). Total cell lysates were probed with the indicated antibodies against Hippo components on Phos-tag SDS-polyacrylamide gels. O and * mark the non-phosphorylated and phosphorylated proteins, respectively.

BaF3-T674I cells were exposed to the indicated concentrations of DCC-2036, imatinib or sorafenib for 36 h, the phosphorylated PDGFRα and total PDGFRα were analyzed by immunoblotting. Imatinib was used for comparison.

B. Western blot analysis of phosphorylated Akt, S6 and CrkL in T-ALL cell lines treated for 4 h with 2 μM Imatinib or Nilotinib or 0.1 μM GZD824. Twenty-five μg of protein were blotted to each lane. β-Actin documented equal lane loading. Imatinib, Nilotinib and GZD824 were abbreviated in IMA, NIL and GZD.

Cell viability of K562/IR cells and their parental cell lines after exposure to different concentrations of GNF-2 for 72 h.

Combinational treatment of kinase inhibitors induces the similar phenotype produced by PP1. All images are lateral view with dorsal to the top and anterior to the left. The combinational treatment of Dasatinib (D) or U0126 (U) with Sunitinib (SU),PTK787 (PTK), or ZM323881 (Z) resulted in the shrinkage of dorsal aorta.

Co-immunoprecipitation assays of UT7 BCR–ABL T315I (UT7 B/A T315I) cells with or without ponatinib (20 nm) or ABL001 (4 μm) treatment for 24 h. All protein extracts were immunoprecipitated with an anti-DNM2 antibody and immunoblotted with a pan-anti-p-Tyr antibody (4G10).

IC50 values for GNF-5-treated Ba/F3 cells expressing BCR-ABL1 or ABL1 1b mutants (a) described to confer ABL001 resistance in BCR-ABL1, (b) identified by mutagenesis screen. after 48 hours. Error bars represent SD of triplicates from three independent experiments. Significance levels in comparison with BCR-ABL1 are indicated (NS, not significant; *P<0.05, **P<0.01, ***P<0.001, two-tailed unpaired t-test).

Combinational treatment of kinase inhibitors induces the similar phenotype produced by PP1. All images are lateral view with dorsal to the top and anterior to the left. The combinational treatment of Dasatinib (D) or U0126 (U) with Sunitinib (SU),PTK787 (PTK), or ZM323881 (Z) resulted in the shrinkage of dorsal aorta.

THOC5 phospho-Y225 levels were assessed in the populations shown by flow cytometry following 24 h treatment with 5 μM imatinib, 150 nM dasatinib or 5 μM nilotinib. Results are displayed as mean fluorescence intensity (n= 4) ±s.e.m.

Senescence induction upon PKCι depletion combined with aurora kinase inhibition. ( a) MCF7 cells were transfected as above to deplete PKCι . Two days after transfection, cells were treated for the indicated time period with 400 n M VX-680. Medium with VX-680 was then removed and fresh medium was added. Cells were stained for SA-b -gal activity 5 days after the start of transfection.* indicates a P value <0.05. ( b) MCF7 cells were treated as above. Five days after transfection, cells were fixed and assessed for the presence of gH2AX foci by immunofluorescence microscopy. (c, d) MCF7 cells were treated with dimethyl sulfoxide (DMSO) control or 400 n M VX-680 for the indicated time periods. Total cell lysates were then analyzed by western blotting for levels of p21 and GAPDH (as loading control). A representative blot is shown in panel c. Quantitation of changes in p21 levels (normalized to vehicle-treated controls) is shown in panel d. The data shown are the means ±s.e. of three independent experiments.

 

 

Inhibition of thymidine (a and b) and cytarabine (c and d) uptake with imatinib. K562 cells (a and c) and MEG-01 cells (b and d) were incubated at 37 ◦C for 15 min with imatinib transport buffer, and then incubated with 0.5 Ci of [3H] thymidine or [3H] cytarabine for an additional 5 min in presence of imatinib. Cells were then washed 3 times, lysed and radioactivity associated to cell pellets was quantified. DMSO, dimethylsulfoxide; DPD, dipyridamole.

Effect of nilotinib on Bcr-Abl kinase activity in ABCB1- and ABCG2- overexpressing CD34⁺CD38^- cells. K562 parental cells and CD34⁺CD38^- subpopulation isolated from K562 cells were treated with nilotinib at 0.01, 0.1 and 1.0 umol/L for 12 h. Equal amount of protein was loaded for western blot analysis as described in the Experimental section. The experiments were repeated at least three times independently, and a representative experiment is shown.

A,IC50 of Bosutinib that block ANDV-induced EC permeability. Endothelial cells were ANDV infected, and 3 days postinfection the permeability of cells in response to VEGF addition was determined in the presence or absence of increasing amounts of kinase inhibitor. The effect of inhibitors is presented as the percentage of ANDV-induced permeability of inhibitor-treated monolayers 3 days postinfection and 30 min post-VEGF and FITC-dextran addition. B, VEGFR2-Src inhibitors block ANDV-induced permeability. Endothelial cells were plated on vitronectin-coated Transwell inserts and infected at an MOI of 0.5 in triplicate with ANDV. Three days postinfection, the permeability of ANDV- and mock-infected endothelial cell monolayers was determined as described for Fig. 1 at indicated times in the presence or absence of Bosutinib .

Mice bearing subcutaneous allografts of conditional patched mutant tumor cells were treated twice weekly with vehicle (saline) or 30 mg/kg PHA-739358. (B)Images of tumors. (C) Tumor weights. Each point represents a single tumor, and grey lines represent mean tumor weights, which were significantly different between vehicle and PHA-739358 treated mice (p < 0.05, based on paired two-tailed t-test).

HEL cells were treated with 0.5, 1 or 5 uM of AT9283 or left untreated for 3 hrs. The expression and phosphorylation state of STAT5 (P-STAT5) and Jak2 (P-Jak2) was assessed by Western blot immunodetection.

Protein expression by western blot analysis of cell lysates from MCF-7, TAM^R-4 and 164^R-7 cells treated for 3 days with vehicle (0.1% DMSO), 1 uM or 1.5 uM WP1130.

(A) The effect of bafetinib at 3 μM on the expression levels of ABCB1 in SW620/Ad300 cells for 24, 48 and 72 h. (B) The effect of bafetinib at 3 μM on the expression level of ABCG2 in NCI-H460/MX20 cells for 24, 48 and 72 h. Equal amounts of total cell lysate were used for each sample. The effect of bafetinib at 3 μM on the subcellular localization of ABCB1 in ABCB1-overexpressing (C) SW620/Ad300 cells and (D) HEK/ABCB1 cells for 24, 48 and 72 h. The effect of bafetinib at 3 μM on the subcellular localization of ABCG2 in ABCG2-overexpressing (E) NCI-H460/MX20 cells and (F) HEK/ABCG2-R482 cells. Scale bar, 10 μm. PI (propidium Iodide, red) counterstains the nuclei.

Western blot analysis of p-histone and histone. 0-10μM KW2449 was added.

 

PP121 induces apoptosis in ATC cells. CAL62 cells were treated with PP121 at the indicated concentrations for 48 h, followed by PI staining. The nuclei were stained with Hoechst and analyzed using a fluorescent microscope. The representative images are shown.

A, HeLa cells were treated with DMSO, Taxol (100 nM for 16 h), or Nocodazole (Noco, 100 ng/ml for 16 h). Total cell lysates were probed with the indicated antibodies against Hippo components on Phos-tag SDS-polyacrylamide gels. O and * mark the non-phosphorylated and phosphorylated proteins, respectively.

BaF3-T674I cells were exposed to the indicated concentrations of DCC-2036, imatinib or sorafenib for 36 h, the phosphorylated PDGFRα and total PDGFRα were analyzed by immunoblotting. Imatinib was used for comparison.

B. Western blot analysis of phosphorylated Akt, S6 and CrkL in T-ALL cell lines treated for 4 h with 2 μM Imatinib or Nilotinib or 0.1 μM GZD824. Twenty-five μg of protein were blotted to each lane. β-Actin documented equal lane loading. Imatinib, Nilotinib and GZD824 were abbreviated in IMA, NIL and GZD.

Cell viability of K562/IR cells and their parental cell lines after exposure to different concentrations of GNF-2 for 72 h.

Combinational treatment of kinase inhibitors induces the similar phenotype produced by PP1. All images are lateral view with dorsal to the top and anterior to the left. The combinational treatment of Dasatinib (D) or U0126 (U) with Sunitinib (SU),PTK787 (PTK), or ZM323881 (Z) resulted in the shrinkage of dorsal aorta.

Co-immunoprecipitation assays of UT7 BCR–ABL T315I (UT7 B/A T315I) cells with or without ponatinib (20 nm) or ABL001 (4 μm) treatment for 24 h. All protein extracts were immunoprecipitated with an anti-DNM2 antibody and immunoblotted with a pan-anti-p-Tyr antibody (4G10).

IC50 values for GNF-5-treated Ba/F3 cells expressing BCR-ABL1 or ABL1 1b mutants (a) described to confer ABL001 resistance in BCR-ABL1, (b) identified by mutagenesis screen. after 48 hours. Error bars represent SD of triplicates from three independent experiments. Significance levels in comparison with BCR-ABL1 are indicated (NS, not significant; *P<0.05, **P<0.01, ***P<0.001, two-tailed unpaired t-test).