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6 protocols using danusertib

1

Cell Proliferation Evaluation of CCSER1

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HeLa sgRNA and RPE hTERT, previously infected with pLenti DDK mock and pLenti DDK r-CCSER1 (as described before) were plated in 60-mm dishes in triplicate (20,000 cells/well) with a complete medium. The cells were detached and counted in triplicate at the indicated time points with a Burker cell chamber after Trypan Blue staining to exclude apoptotic/necrotic cells. Where indicated, a two-way ANOVA with a multiple-comparison test was applied. DLD1 cells, previously infected with pCCLsin.PPT.pGK.GFP.Wpre.3′ LTR-U6.sgRNA and pCCLsin.PPT.pGK.BFP.Wpre.3′ LTR-U6.sgRNA and then “crisped” with pLenti Puro CAS9 were plated in a 96-well plate in triplicate (2,000 cells/well) with complete medium. CellTiter-Glo Luminescent Cell Viability Assay is performed at the indicate time points, according to the manufacturer instructions. For drug evaluation, Danusertib (Danusertib [PHA-739358] S1107; Selleck Chemicals) was added to medium 24 h after plating.
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2

Molecular Mechanisms of Cell Cycle Regulation

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Imatinib, danusertib, volasertib and AZD1775 were purchased from Selleck Chemicals. For Western blotting, 10% acrylamide gels, running buffer (MOPS), transfer buffer and polyvinylidene difluoride (PVDF) transfer membrane were bought from Thermo Scientific. For immunofluorescence (IF), the FITC-conjugated anti-mouse IgG, the anti-rabbit conjugated with Alexa Fluor 568 antibodies and DAPI (6-diamidino-2-phenylindole) were purchased from Sigma-Aldrich.
The anti-cleaved-caspase 3 (Asp175), anti-cleaved-caspase 9 (Asp353), anti-BAX, anti-CHK1, anti-phospho-CHK1 (S317), anti-CHK2, anti-phospho-CHK2 (T68), anti-cyclin B1, anti-phospho-cyclin B1 (S133), anti CDC25C, anti-phospho-CDC25C (S198), anti-WEE1, anti-phospho-WEE1 (S642), anti-CDK1, anti-phospho-CDK1 (Y15), anti-phospho-H2AX (S139), anti-RAD51, anti- β-tubulin Alexa Fluor 555 Conjugate, anti-Aurora kinase A, anti-phospho-Aurora kinase A (T288), anti-PLK1, anti-phospho-PLK1 (T210), anti-PARP, anti-caspase-3 and anti-caspase-9 antibodies were purchased from Cell Signaling Technology. The anti-β-actin antibody used as loading control was purchased from Santa Cruz Biotechnology.
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3

Mass Spectrometry Analysis of Screened Compounds

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D-luciferin was purchased from Gold Biotechnologies (St. Louis, MO). Screened compounds are described below. Repurchased hits, including Momelotinib, TG101209, Fedratinib, Pacritinib, Danusertib, Saracatinib, Ibrutinib, and Bosutinib were obtained from Selleck (Houston, TX). For mass spectrometric experiments, LC–MS grade acetonitrile (ACN) and water were from J.T. Baker (Philipsburg, NJ). Formic acid was obtained from Pierce (Rockford, IL) and iodoacetamide (IAA) and dithiothreitol (DTT) were purchased from Sigma-Aldrich (St. Louis, MO). Sequencing grade trypsin was supplied by Promega (Madison, WI).
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4

SCLC Cell Line Characterization

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All SCLC cell lines were provided by Dr. John V. Heymach (MD Anderson Cancer Center, Houston, TX) and Dr. Gerold Bepler (Barbara Ann Karmanos Cancer Institute, Detroit, MI). All cell lines, maintained in a central bank at Moffitt, were authenticated by STR analysis (ACTG Inc, Wheeling, IL), and all are routinely tested and shown to be negative for mycoplasma (PlasmoTest, InvivoGen, San Diego, CA). All cell lines were grown in RPMI 1640 media with 10% fetal bovine serum (GIBCO, Grand Island, NY) and maintained at 37°C in a humidified incubator with 5% CO2 atmosphere. The Roche Kinase Inhibitor Set was a gift of Hoffman-La Roche (San Diego, CA). SNS-314, danusertib, AT9283, MLN-8237, ENMD-2076, TAK-901, AZD1152, and VX-680 were purchased from Selleckchem (Houston, TX). The TANK-binding kinase 1 (TBK1) inhibitor Compound II and BX-795 were provided by Dr. Michael White (University of Texas Southwestern Medical Center, Dallas, TX).
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5

Screening of Protein Kinase Inhibitors for TNBC

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The fifty-five protein kinase inhibitors (PKIs) were purchased from following sources: BML-275, FR 180204, IKK16, GW 843682X, NSC 109555, NU7441, PD407824, PF 573228, SB 218078, TCS PIM-1-1, TCS PIM-1-4a, and TPCA-1 from Tocris Biosciences (Bristol, UK); indirubin-3′-monoxime and Ro-31-8220 from Calbiochem (San Diego, CA, USA); A-769662, bosutinib, chelerythrine, CP690550, fasudil, gefitinib, imatinib, nilotinib, PKC412, roscovitine, SNS-314, and tozasertib from LC Laboratories (Woburn, MA, USA); AT7867, AT9283, AZD1152, AZD1480, BI 2536, BIX 02189, CHIR-99021, CI-1040, CYC116, danusertib, enzastaurin, GDC-0879, INCB018424, JNJ-7706621, KU-55933, LY2228820, MLN8237, PD-0325901, PF-4708671, PLX-4032, PLX-4720, SB216763, SNS-032, SP600125, VX-702, Y-27632, and ZM447439 from Selleck Chemicals (Houston, TX, USA); U0126 from Promega (Madison, WI, USA); TBCA from Millipore (Burlington, MA, USA).
All TNBC cells in this study were obtained from the American Type Culture Collection (Manassas, VA, USA). The cultured cells were monitor by trypan blue cell counting as described previously [58 (link)].
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6

Expansion and Drug Treatment of CD34+ Cells

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CD34+ cells were seeded into individual wells of a 96 well tissue-culture treated flat bottom polystyrene plate (1 × 104 cells/well in 200 µL) in SFEM II medium (STEMCELL Technologies; 09655) supplemented with 10% FBS (Gibco; 10082-147), 100 U/ml penicillin and 100 mg/ml streptomycin (Gibco; 15140-122), 12.5 μg/ml aprotinin (Sigma–Aldrich; A3428), 20 ng/ml EPO (PeproTech; 100-64), 1 ng/ml G-CSF (PeproTech; 300-23), 100 ng/ml Flt3-L (PeproTech; 300-19), 100 ng/ml TPO (PeproTech; 300-18), 50 ng/ml SCF (PeproTech; 300-07) and select EGM-2 BulletKit (Lonza; CC-4176) components (hFGF-B, VEGF, R3-IGF-1, hEGF, ascorbic acid and heparin), according to the manufacturer’s instructions. Medium was changed on days 2 and 4 and every day afterwards. Cells were split 2x on both day 7 and day 10 of culture.
AZD2811 was obtained from AstraZeneca while Danusertib and Tozasertib were purchased from Selleckchem. Drugs were reconstituted in DMSO, stored frozen at −20 C, and then diluted into the above cell culture medium for use. To start drug treatment on day 10, cells were harvested into V-bottom polypropylene plates and centrifuged at room temperature for 5 min at 300xg. The supernatant was then aspirated and the cells were resuspended in medium containing drug or DMSO and transferred back to 96 well tissue-culture treated flat bottom polystyrene plates.
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