IGF-1R

(e) c-peptide from these mice 240 min after respective treatments.

(A) KRAS mutant (SW837 and LoVo) or KRAS/PIK3CA mutant (HCT-116) colorectal cancers were treated with the indicated compounds for 6 hours (gef, gefitinib 1 μM; NVP, NVP-AEW541 1 μM; PHA, PHA-665752 1 μM), and the resulting protein lysates were immunoprecipitated with an anti-p85 antibody. The precipitated proteins were analyzed by Western blots with the indicated antibodies. Whole cell extracts were probed with the indicated antibodies. Asterisks indicate the IRS proteins for SW837 and HCT-116 cells, and ERBB3 for LoVo cells. (B) SW837 cells were grown in either normal serum (5% FBS) or low serum (0.5% FBS) and treated with vehicle, R1507 anti–IGF-IR antibody (25 μg/ml), or NVP-AEW541 (1 μM) for 6 hours. The cells were lysed and probed with the indicated antibodies.

(E) The level of migration ability of HEC-1B cells treated with insulin, GSK1904529A, and the silencing of DHCR24 was determined using a transwell assay. (F) The invasion ability of HEC-1B cells treated with insulin, GSK1904529A, and silencing of DHCR24 was probed. The data are presented as the mean ± SD of three independent experiments. (*p < 0.05; **p < 0.01; ***p < 0.001).

Relative cell viability of 72 hours of treatment with IGF1R/IR inhibitors. a-b OSI-906 does not inhibit chondrosarcoma cell viability, even in the presence of IGF1. c-d IGF1R inhibitors NVP-ADW742 and GSK1838705A do not inhibit chondrosarcoma cell viability

A, cell viability reduction. TC1889 cells were treated with pharmacological inhibitors against IGF-1R (NVP and BMS), as well as a neutralizing IGF-1R antibody (aIR3) and cell viability was assessed using MTT-assays. Mouse IgG1 antibody was employed as a reference control for the effects of aIR3 at respective concentrations. Assays were performed in sextuple. Data are expressed as the mean SD (n 3). B, induction of cell death. TC1889 cells were treated with pharmacological inhibitors against IGF-1R as well as a neutralizing IGF-1R antibody and cell death was evaluated by FACS-analyses following PI-staining. Data are expressed as the mean SD (n =3).

 

(A) CLL B cells purified from freshly isolat ed or freeze-thawed PBMCs from CLL patient samples were treated with a single dose of 15 µM AG1024, 1µM PPP or 1µM linsitinib for 24h and cell survival was determined by flow cytometry. Results are shown as mean  ± SEM, n=20. (B)CLL B cells purified from freshly isolat ed or freeze-thawed PBMCs from CLL patient samples were treated with a single dose of 15 µM AG1024 (AG) or 1µM linsitinib (L) and immunoblotted for the expression of phosphorylated IGF1R and IRS-1 (n=6). (C) CLL B cells purified from freshly isolat ed or freeze-thawed PBMCs from CLL patient samples were treated with a single dose of 1µM PPP and immunoblotted for the expression of phosphorylated IGF1R and IRS-1 (n=4). (D) CLL B cells purified from freshly isolated or freeze-thawed PBMCs from CLL patient samples were treated with 5-15 µM AG1024 and subject to a Western blot analysis using the indicated antibodies. Results are represented as mean±SEM (n=10). Supplementary Figure 1C shows the associated densitometrical analysis after treatment with 15 µM AG1024. (E) CLL B cells purified from freshly isolat ed or freeze-thawed PBMCs from CLL patient samples were treated with 10-500nM rhIGF-1 and immunoblotted for the expression of IGF1R, pIGF1R, pAkt, Akt, pERK and Erk. A representative example from four independent experiments is shown.

Protective effect of IGF1 on Sorafenib or VK1-mediated actin cytoskeleton redistribution in HCC cells. PLC/PRF/5 and HLF cells were stained with DyLight 554 Phalloidin after treatment with 1 μM Sorafenib, 12 μM VK1 or 1 μM GSK1838705A (GSK) for 24 h alone or in combination with 40 ng/ml IGF1. Scale bar: 100 μm.

IGF-1R is key determinant of the EI24-mediated gefitinib sensitivity. (A and B) EI24-knockdown cells were treated with the indicated concentrations of inhibitorsfor 24 h before cell viability was measured by the MTT assay. Error bars, S.D., p-values were calculated using unpaired t-test.*p < 0.01,**p = 0.0003,***p < 0.0001. (C and D)EI24-knockdown cells were fixed and stained with crystal violet after 14 days treatment with concentrations of gefitinib (0.1 M), PQ401 (5 M), and AG1024 (20 M). (Eand F) Kaplan–Meier survival plots were obtained using Kaplan–Meier Plotter and display the probability of overall survival of lung cancer patients grouped according toEI24 (208289 s at, E) and IGF-1R (203627 at, F) expression. p-Values were calculated using the log-rank test.

(E) Immunoblot analysis of lysates of A4573 and TC32 cells following exposure to media only (Control, C); ST/V and V/ST with (+) or without (-) 20 nM AZD3463 using antibodies against ALK, IGF-1R, STAT3 (Y705), p-STAT3, AKT, p-AKT (S473), MAPK, p-MAPK (p42/44).

CLL B cells purified from freshly isolated or freeze-thawed PBMCs from CLL patient samples were treated with a single dose of 1 µM PPP and were immunoblotted for the expression of phosphorylated IGF1R and IRS-1 (n = 4).

(e) c-peptide from these mice 240 min after respective treatments.

(A) KRAS mutant (SW837 and LoVo) or KRAS/PIK3CA mutant (HCT-116) colorectal cancers were treated with the indicated compounds for 6 hours (gef, gefitinib 1 μM; NVP, NVP-AEW541 1 μM; PHA, PHA-665752 1 μM), and the resulting protein lysates were immunoprecipitated with an anti-p85 antibody. The precipitated proteins were analyzed by Western blots with the indicated antibodies. Whole cell extracts were probed with the indicated antibodies. Asterisks indicate the IRS proteins for SW837 and HCT-116 cells, and ERBB3 for LoVo cells. (B) SW837 cells were grown in either normal serum (5% FBS) or low serum (0.5% FBS) and treated with vehicle, R1507 anti–IGF-IR antibody (25 μg/ml), or NVP-AEW541 (1 μM) for 6 hours. The cells were lysed and probed with the indicated antibodies.

(E) The level of migration ability of HEC-1B cells treated with insulin, GSK1904529A, and the silencing of DHCR24 was determined using a transwell assay. (F) The invasion ability of HEC-1B cells treated with insulin, GSK1904529A, and silencing of DHCR24 was probed. The data are presented as the mean ± SD of three independent experiments. (*p < 0.05; **p < 0.01; ***p < 0.001).

Relative cell viability of 72 hours of treatment with IGF1R/IR inhibitors. a-b OSI-906 does not inhibit chondrosarcoma cell viability, even in the presence of IGF1. c-d IGF1R inhibitors NVP-ADW742 and GSK1838705A do not inhibit chondrosarcoma cell viability

A, cell viability reduction. TC1889 cells were treated with pharmacological inhibitors against IGF-1R (NVP and BMS), as well as a neutralizing IGF-1R antibody (aIR3) and cell viability was assessed using MTT-assays. Mouse IgG1 antibody was employed as a reference control for the effects of aIR3 at respective concentrations. Assays were performed in sextuple. Data are expressed as the mean SD (n 3). B, induction of cell death. TC1889 cells were treated with pharmacological inhibitors against IGF-1R as well as a neutralizing IGF-1R antibody and cell death was evaluated by FACS-analyses following PI-staining. Data are expressed as the mean SD (n =3).

 

(A) CLL B cells purified from freshly isolat ed or freeze-thawed PBMCs from CLL patient samples were treated with a single dose of 15 µM AG1024, 1µM PPP or 1µM linsitinib for 24h and cell survival was determined by flow cytometry. Results are shown as mean  ± SEM, n=20. (B)CLL B cells purified from freshly isolat ed or freeze-thawed PBMCs from CLL patient samples were treated with a single dose of 15 µM AG1024 (AG) or 1µM linsitinib (L) and immunoblotted for the expression of phosphorylated IGF1R and IRS-1 (n=6). (C) CLL B cells purified from freshly isolat ed or freeze-thawed PBMCs from CLL patient samples were treated with a single dose of 1µM PPP and immunoblotted for the expression of phosphorylated IGF1R and IRS-1 (n=4). (D) CLL B cells purified from freshly isolated or freeze-thawed PBMCs from CLL patient samples were treated with 5-15 µM AG1024 and subject to a Western blot analysis using the indicated antibodies. Results are represented as mean±SEM (n=10). Supplementary Figure 1C shows the associated densitometrical analysis after treatment with 15 µM AG1024. (E) CLL B cells purified from freshly isolat ed or freeze-thawed PBMCs from CLL patient samples were treated with 10-500nM rhIGF-1 and immunoblotted for the expression of IGF1R, pIGF1R, pAkt, Akt, pERK and Erk. A representative example from four independent experiments is shown.

Protective effect of IGF1 on Sorafenib or VK1-mediated actin cytoskeleton redistribution in HCC cells. PLC/PRF/5 and HLF cells were stained with DyLight 554 Phalloidin after treatment with 1 μM Sorafenib, 12 μM VK1 or 1 μM GSK1838705A (GSK) for 24 h alone or in combination with 40 ng/ml IGF1. Scale bar: 100 μm.

IGF-1R is key determinant of the EI24-mediated gefitinib sensitivity. (A and B) EI24-knockdown cells were treated with the indicated concentrations of inhibitorsfor 24 h before cell viability was measured by the MTT assay. Error bars, S.D., p-values were calculated using unpaired t-test.*p < 0.01,**p = 0.0003,***p < 0.0001. (C and D)EI24-knockdown cells were fixed and stained with crystal violet after 14 days treatment with concentrations of gefitinib (0.1 M), PQ401 (5 M), and AG1024 (20 M). (Eand F) Kaplan–Meier survival plots were obtained using Kaplan–Meier Plotter and display the probability of overall survival of lung cancer patients grouped according toEI24 (208289 s at, E) and IGF-1R (203627 at, F) expression. p-Values were calculated using the log-rank test.

(E) Immunoblot analysis of lysates of A4573 and TC32 cells following exposure to media only (Control, C); ST/V and V/ST with (+) or without (-) 20 nM AZD3463 using antibodies against ALK, IGF-1R, STAT3 (Y705), p-STAT3, AKT, p-AKT (S473), MAPK, p-MAPK (p42/44).

CLL B cells purified from freshly isolated or freeze-thawed PBMCs from CLL patient samples were treated with a single dose of 1 µM PPP and were immunoblotted for the expression of phosphorylated IGF1R and IRS-1 (n = 4).