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4 protocols using loxo 101

1

Colon Cancer Cell Line Apoptosis Assay

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Human colon cancer cell lines KM12SM, HT29, and HCT116 were obtained from the Korean Cell Line Bank (Seoul, Republic of Korea) and maintained in RPMI 1640 supplemented with 10% fetal bovine serum. The cells were cultured at 100% humidity and 5% CO2 at 37 °C. The NTRK inhibitors LOXO-101, entrectinib, dovitinib, dovitinib lactate, dovitinib dilactic acid, regorafenib, and crizotinib were purchased from Selleck Chemicals (Houston, TX, USA). We used the annexin V-APC/propidium iodide (PI) apoptosis detection kit (Thermo Fisher Scientific, Rockford, IL, USA).
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2

GC Cell Line Maintenance and Compound Testing

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The human GC cell lines NCI-N87, SNU16, MKN7, MKN28, and AGS were obtained from the Korean Cell Line Bank (Seoul, Republic of Korea) and maintained in RPMI-1640 supplemented with 10% fetal bovine serum. The cells were cultured at 37 °C with 100% humidity and 5% CO2. LOXO-101, entrectinib, dovitinib, dovitinib lactate, dovitinib dilactic acid, regorafenib, cabozantinib, and crizotinib were purchased from Selleck Chemicals (Houston, TX, USA).
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3

Targeting YWHAE-NTRK3 Sarcoma with LOXO-101

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YWHAE-NTRK3-expressing murine sarcoma cells were treated with 50 nM of LOXO-101 (Selleck Chemicals, Houston, TX, USA) in vitro. Cells were seeded into 96-well plates at a concentration of 5 × 103 cells per well and were treated with drugs for 72 h. XTT assays were then performed, and the half-maximal concentration (IC50) was calculated. Fluorescence-activated cell sorting (FACS) analysis was performed for 24 h after treatment with drugs to detect Annexin-V- or EdU-positive fractions. For in vivo experiments, 1 × 106 cells were transplanted subcutaneously into Balb/c nude mice, and the mice were treated with 100 mg/kg of LOXO-101 via oral administration daily, for seven days.
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4

Cell Culture and Compound Screening Protocol

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NCI-H2077, RT112, DMS114, NCI-H520 were cultured in RPMI media, supplemented with 10% FBS, and penicillin/streptomycin/L-glutamine (PSG). AN3 CA was cultured in Dulbecco’s Modified Eagle Medium (DMEM), supplemented with 10% FBS and PSG. All cell lines were cultured at 37 °C in a humidified chamber in the presence of 5% CO2. Cell lines were obtained from ATCC or Sigma-Aldrich, primarily in 2014 and 2016, and were not further authenticated. Cells were not passaged for more than 6 months and were routinely monitored in our laboratory for cellular morphology and microbial presence by microscopic observation. Cell lines used for ORF screen, gene expression and xenograft studies were tested and confirmed negative for Mycoplasma (MycoAlert PLUS, Lonza).
BGJ398(26 (link)), trametinib(27 (link)), LDC1267(28 (link)), LOXO-101 (ARRY-470)(29 (link)), imatinib(30 (link)), BKM120(31 (link)), AZD8931(32 (link)) and MGCD265 (glesatinib)(33 (link)) were purchased from Selleck. FIIN-3(34 (link)) and Torin2(35 (link)) were a generous gift from Dr. Nathanael Gray at Dana-Farber Cancer Institute (Boston, MA).
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