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13 protocols using gdc0032

1

Comparison of PI3K Inhibitors in Mice

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BKM120, BYL719, and GDC-0032 were all purchased from Selleckchem and given via oral gavage in 100 μl. The mice were given 0.5% carboxymethyl cellulose (CMC) as vehicle control or PI3K inhibitors (BKM120: 30 mg/kg, BYL719: 30 mg/kg, and GDC-0032: 20 mg/kg) by gavage for 15 days (5 out of 7 days). The mice were euthanized after the treatment to check the transcriptional profiles of DLPs by RNA-seq analyses.
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2

Cell Line Characterization and Compound Screening

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T47D, MCF7 cells were purchased from American Type Culture Collection (ATCC) in 2012 - 2015. They were authenticated using STR testing and tested negative for Mycoplasma contamination. EFM19, BT474, MDAMB453, HCC202, MDAMB361, HCC1419, MDAMB415, HCC1937, CAL51, BT20, HCC1954, and JIMT1 cells were purchased from Cancer Cell Line Encyclopedia (CCLE) at the Broad Institute in 2015-2016, and were authenticated using SpectroCHIPII-G384 by Sequenom's MassARRAY Analyzer Compact. All the cells were maintained in RPMI-1640 with 10% fetal bovine serum. BYL719, GDC0941, BKM120, AZD1208, GDC0032, PI-103, BX795, BX912, MK2204, GDC0068, sirolimus, everolimus, PP242 and WYE were purchased from Selleck Chemicals (Supplementary Material and Methods). Blasticidine was purchased from Life Technologies. LGH447 was obtained from Novartis.
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3

Trametinib and inhibitor evaluation

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Trametinib (GSK1120212), MK2206 (PubChem compound database (CID, 24964624)), GDC0032 (25 (link)), TGX221 (26 (link)), BYL710 (25 (link)) and IPI145 (25 (link)) were purchased from Selleck Chemicals (Houston, TX). Recombinant human HGF was purchased from PeproTech (Rocky Hill, NJ) and used at 10 ng/ml based on our previous studies (20 (link)). The neutralizing and internalizing anti-cMET antibody, LY2875358, and the cMET/RON inhibitor, LY2801653 (27 ), were provided by Eli Lilly and Company (Indianapolis, IN).
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4

Breast and Kidney Cell Assays

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Authenticated MCF7, T47D, MCF10A, HCC1500, and 293T cells were purchased from ATCC and used for experiments within the first 10 passages. Cultures were checked for Mycoplasma every 6 months (Lonza) and cells maintained at 37°C and 5% CO2 in RPMI or DMEM + 10% FBS and 1% Pen-Strep. GDC-0941, BYL719, GDC-0032, and GDC-0068 were purchased from Selleck, and MI-136, MI-503, and MM-102 were purchased from Cayman. siRNAs (Silencer Select) were purchased from Invitrogen (Negative control #1, 4390843; siKMT2D, s528766).
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5

Preparation of Drug Solutions

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Novartis Pharma AG (Basel, Switzerland) provided BYL719 and AEW541. GDC0032 was purchased from Selleckchem (Houston, TX, USA). For in vitro experiments, all drugs were dissolved in DMSO, and for in vivo administration, in 0.5% carboxymethylcellulose. Human IGF2 recombinant protein was purchased from Cell Signaling Technology (#5238) and dissolved in sterile water.
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6

Doxycycline-Inducible SGK1 Knockdown

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Reagents such as BYL719, GDC0941, MK2206, BKM120, GDC0032 were purchased from Selleckchem. SGK1-inh was a gift from M. Nazare and N. Halland, dissolved in DMSO. GDC0077 was a kind gift under an MTA with Genentech, Inc.
Plasmids pLenti7.3-V5-SGK1 (Δ60, S422D) and control vector pLenti7.3luc were cloned in house as described by (Fellmann et al., 2013 (link)). Lentiviral doxycycline-inducible mirE-embedded shRNAs were cloned into the LT3GEPIR vector. This all-in-one vector contains the puromycin resistance and the reverse transactivator (rtTA3) under the control of PGK promoter. SGK1 shRNA was chosen experimentally based on five different hairpins validated at Castel et al., 2016 (link).
SGK1#282shRNA: 5TGCTGTTGACAGTGAGCGCAGAAGTGTTCTATGCAGTCAATAGTGAAGCCACAGATGTATTGACTGCATA GAACACTTCTTTGCCTACTGCCTCGGA-3.
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7

Evaluating Small Molecule Inhibitors

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Pemigatinib (Cat# T12401), BGJ398 (infigratinib, Cat# T1975) and quisinostat (Cat# T6055) were purchased from TargetMol Chemicals (Boston, MA). Gemcitabine (Cat# LY-188011), panobinostat (Cat# LBH589), T6061 (LMK-235, Cat# S7569), trichostatin A (Cat# S1045), PF-04691502 (Cat# S2743), GDC-0032 (Taselisib, Cat# S7103), ciclopriox olamine (Cat# S3019), S-Ruxolitinib (Cat# A2902), SP2509 (Cat# S7680), dinaciclib (Cat# S2768), and Trametinib (Cat# S2673) were purchased from Selleck Chemicals (Houston, TX).
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8

Kinase Inhibitors for Cell Signaling

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The small-molecule kinase inhibitors used included the PI3K catalytic inhibitors GDC-0941 (Cayman Chemical, 11600)44 (link) and GDC-0032 (Selleck Chemicals, S7103)45 (link) and BYL-719 (Active Biochem, A-1214)46 (link), the AKT catalytic inhibitor GDC-0068 (Selleck Chemicals, S2808)47 (link), and the AKT allosteric inhibitor MK-2206 (Cayman Chemical, 1032350-13-2)48 (link). Note that AKT catalytic inhibitors are known to increase AKT phosphorylation on threonine 308 and serine 473 by stabilizing a conformation in which these phosphorylated residues are inaccessible to phosphatases while, at the same time, fully inhibiting AKT kinase activity and phosphorylation of downstream substrates49 (link). Inhibitor stocks were dissolved in DMSO at 10 mM under sterile conditions, aliquoted and stored at −80 °C. Aliquots were freeze–thawed no more than five times. Insulin/growth factor treatments were preceded by 15 min of pretreatment with DMSO (Thermo Fisher Scientific, BP231-100) or a small-molecule inhibitor dissolved in DMSO. The inhibitors or DMSO were also present in the medium during labelling.
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9

Multiparametric Western Blot Analysis

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The antibodies anti-pAKT Ser473 (#4060), anti-pAKT thr308 (#9275), anti-AKT (#4691), anti-pS6 S235/236 (#4858), anti-pS6 S240/244 (#5364), anti-S6, anti-pERK1/2 Thr202/Tyr204 (#9101), and anti-ERK1/2 (#4695) were from Cell Signaling Technology. Anti-LC3B was obtained from Sigma-Aldrich (L8918). KI67 was purchased from Vector laboratories (#VP K451). Anti-Actin was from MP Biomedicals (691001). Novartis Pharma AG (Basel, Switzerland) provided BYL719 and AEW541. LDE225, MK2206, AZD6482,AZD6738, GDC0032, PHA-665752, 17-AAG, LEE011, LY2835219, LBH589, ABT737 and Navitoclax were purchased from Selleckchem (Houston TX, USA). TUNEL- TREVIGEN, cat no-4815-30-K).
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10

Evaluating mTOR and PI3K Inhibitors in Lung Cancer

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Lung cancer cells (NCI-H460 cells and H1299 cells) were seeded in complete medium when the cells reached 60%-70% confluence in 6-well plate (Corning) at 37°C in a humidified atmosphere of 5% CO2 for. The cells were treated with 0.1 or 1 μM mTOR inhibitors, Torin2, WYE-125132, and PI3K inhibitors, GDC0032, PKI-402 (all from Selleckchem, USA). After 1 day, cells were harvested.
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