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12 protocols using penicillin streptomycin antibiotic

1

Culture of Various Cell Lines

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HT1080 cells (male, fibrosarcoma epithelial cells purchased from ATCC) were grown at 37 °C with 5% CO2 in RPMI 1640 (Gibco), 10% (v/v) FBS (HyClone), and 1% Penicillin-Streptomycin antibiotic (Corning). A375 cells (female, malignant melanoma; kindly gifted by Oliver Jonas, Koch Institute, MIT), KP cells (female, mouse KrasG12D;p53−/− lung adenocarcinoma; kindly gifted by Tyler Jackson Laboratory), and MEF (Mouse Embryonic Fibroblasts, sex unspecified in the original publication) wild-type (Rev1+/+) and Rev1 knockout (Rev1−/−) cells (Jansen et al., 2006 (link)) were grown at 37 °C with 5% CO2 in DMEM (Gibco), 10% (v/v) FBS (HyClone), and 1% Penicillin-Streptomycin antibiotic (Corning). LNCap cells (male, human prostate adenocarcinoma; kindly gifted by Michael Yaffe Lab, Koch Institute, MIT) were also grown at 37 °C with 5% CO2 in RPMI 1640 (-phenol) (Gibco), 10% (v/v) FBS (HyClone), and 1% Penicillin-Streptomycin antibiotic (Corning). AG01522 cells (male, human primary cells purchased from Coriell Institute) were grown at 37 °C with 5% CO2 in MEM (-Glutamine; +Earle’s Salts; +Non-Essential Amino Acids) (Gibco) and 20% (v/v) FBS (HyClone). All cells were trypsinized using 0.25% Trypsin-EDTA (ThermoFisher) for passaging.
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2

Culturing Glioblastoma and Endothelial Cells

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U87 and U251 (glioblastoma multiforme; GBM) were purchased from the Korea Cell Line Bank (KCLB) and cultured in minimum essential medium (MEM) (Corning, Corning, NY, USA) at 37°C in a humidified atmosphere containing 5% CO2. The medium contained 10% fetal bovine serum and 5% penicillin- streptomycin antibiotics (Corning, Corning, NY, USA). HUVECs were cultured in endothelial cell growth medium MV2 with supplement mix (Promo Cell, Heidelberg, Germany). Two patient-derived GSCs, C2M and X08, were cultured with DMEM-F-12 (Corning, Corning, NY, USA) containing B27 serum-free supplement (Gibco, Carlsbad, CA, USA), epidermal growth factor (EGF) (Sigma-Aldrich, St. Louis, MO, USA), human fibroblastic growth factor (hFGF) (Biovision, Milpitas, CA, USA), and 5% penicillin-streptomycin antibiotics (Corning). Recombinant human PDGF (R&D Systems, Minneapolis, MN, USA) dissolved in 0.4 mM HCl was treated with Opti MEM medium to cells.
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3

Cell Culture and Transfection Protocol

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HEK293T and B16-OVA (B16F10 cells expressing OVA) cells were cultured in Dulbecco’s modified Eagle’s medium (DMEM; CORNING) supplemented with 10% fetal bovine serum (FBS) (CORNING) and 1% penicillin/streptomycin antibiotics (CORNING). U2OS cells were maintained in McCoy’s 5A medium (CORNING) containing 10% FBS and 1% penicillin/streptomycin antibiotics. Cell transfection was carried out by Lipofectamine 2000 according to the manufacturer’s protocol (Life Technologies).
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4

Cell Culture Conditions for HT1080, MEFs, and KP Cells

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HT1080 cells (purchased from ATCC) were grown at 37 °C with 5% CO2 in RPMI 1640 (Gibco), 10% (vol/vol) FBS (HyClone), and 1% Penicillin-Streptomycin antibiotic (Corning). MEFs (wild type and Rev1 knockout) [Jansen et al. , 2006 (link)] and KP (KrasG12D;p53−/−) cells (kindly obtained from Jackson Lab, MIT) were also grown at 37 °C with 5% CO2, but in DMEM (Gibco), 10% (vol/vol) FBS (HyClone), and 1% Penicillin-Streptomycin antibiotic (Corning). All cells were trypsinized using 0.25% Trypsin-EDTA (Corning) for passaging or experimentation.
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5

Generating 5-FU and Oxaliplatin Resistant Colorectal Cancer Cells

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HT29 cells (female, colorectal adenocarcinoma cells purchased from ATCC) were grown at 37 °C with 5% CO2 in McCoy's 5a medium (SigmaAldrich), 10% (v/v) FBS (Gibco), and 1% Penicillin–Streptomycin antibiotic (Corning). SW480 cells (male, colorectal adenocarcinoma cells purchased from ATCC) were grown at 37 °C with 5% CO2 in L-15 medium (SigmaAldrich), 10% (v/v) FBS (Gibco), and 1% Penicillin–Streptomycin antibiotic (Corning). 5-FU resistant cells were generated by incubating its parental cells with 5-FU at 0.5 µM, 1 µM, 2 µM and 4 µM for 2 weeks (48 h treatment with incubation in drug free medium for 12 days). Oxaliplatin resistant cells were generated by incubating its parental cells with oxaliplatin at 2 µM, 4 µM, 8 µM and 16 µM for 2 weeks (48 h treatment with incubation in drug free medium for 12 days). The resistant cells were kept in the medium with drugs for at least another 16 weeks. Entire population of resistant cells were used in this study.
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6

Human Cell Line Maintenance Protocol

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Human NSCLC cell lines A549, H1650 and H226 as well as the transformed human embryonic kidney epithelial cell line, HEK-293T, were purchased from American Type Culture Collection and maintained according to the manufacturer’s instructions. HEK-293T cells were cultured in Dulbecco’s modified Eagle’s medium (Corning) and lung cancer cell lines were cultured in RPMI-1640 medium (Corning). Media were supplemented with 10% fetal bovine serum (Millipore) and 1% Penicillin/Streptomycin antibiotics (Corning). All cell lines were certified by the indicated cell bank and routinely authenticated by morphologic inspection.
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7

Culturing Human Mammary and Breast Cancer Cells

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The human mammary epithelial cells (MCF10A) were obtained from American Type Culture Collection (Manassas, VA, USA). Breast cancer cell lines (ZR-75-1, MCF-7, BT-474, MDA-MB-453, HCC1937, HCC38, and MDA-MB-231) were obtained from the Korea Cell Line Bank (KCLB). MCF10A cells are cultured in Dulbecco’s modified Eagle’s medium (DMEM)/F12 media (Thermo Fisher Scientific, Invitrogen, USA) supplemented with 100 ng/mL cholera toxin, 20 ng/mL EGF, 0.01 mg/mL insulin, 500 ng/mL hydrocortisone, and 5% Chelex-treated horse serum. ZR-75-1, BT-474, MDA-MB-453, and MDA-MB-231 cells were maintained in DMEM (Corning, Corning, NY, USA), and MCF-7, HCC1937, and HCC38 cells were maintained in RPMI (Corning, Corning, NY, USA). HUVECs were grown in endothelial cell growth medium MV2 with supplement mix (Promo Cell, Heidelberg, Germany). All medium was supplemented with 10% fetal bovine serum (FBS; Tissue Culture Biologicals, Tulare, CA, USA) and 1% penicillin-streptomycin antibiotics (Corning, Corning, NY, USA). Cells were maintained in a humidified incubator of 5% CO2 at 37°C.
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8

NSCLC Cell Lines and Gefitinib Sensitivity

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gefitinib-sensitive HCC827 parental (HCC827P) and HCC827 gefitinib-resistant (HCC827GR) human NSCLC cell lines were a generous gift from Dr. Pasi Jänne [52 (link)]. gefitinib-sensitive PC9 parental (PC9P) cells and their gefitinib-resistant counterparts (PC9GR2, PC9GR3) were kindly provided by Dr. Aaron Hata [53 (link)]. HCC827P and PC9P cells were grown in RPMI-1640 medium (Corning). RPMI-1640 medium containing 1 µm of gefitinib (Selleckchem) was used to culture HCC827GR, PC9GR2, and PC9GR3 cells. HEK-293T cells were purchased from ATCC and maintained in DMEM (Corning). All media were supplemented with 10% fetal bovine serum (FBS; Millipore), 1% penicillin/streptomycin antibiotics (Corning), and 25 µg/ml Plasmocin prophylactic (Invivogen). All cell lines were authenticated by their source and were subsequently routinely authenticated via morphologic inspection.
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9

Cultivation of Human SCLC Cell Lines

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Human SCLC cell lines, DMS-53 and H1048, were purchased from The European Collection of Authenticated Cell Cultures (ECACC, Salisbury, UK) via Sigma-Aldrich (St. Louis, MO) and American Type Culture Collection (ATCC, Manassas, VA), respectively, and maintained in RPMI-1640 medium (Corning, Manassas, VA) supplemented with 10% foetal bovine serum (FBS; Millipore, Burlington, MA) and antibiotics. Human 293T cells obtained from ATCC were cultured in Dulbecco’s modified Eagle’s medium (DMEM; Corning). All cells were grown in a humidified chamber at 37 °C supplied with 5% CO2 in media supplemented with 10% FBS, 1% Penicillin/Streptomycin antibiotics (Corning), and 25 µg/mL plasmocin (Invivogen, San Diego, CA). All cell lines were certified prior to purchase and were subsequently authenticated by morphologic inspection on a regular basis.
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10

Cell Line Cultivation and Maintenance

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C4-2 cell line was a kind gift from Dr. Leland W. Chung. All other cell lines (HEK293T, PC-3, and SKBR3) used in this study were obtained from the American Type Culture Collection (Rockville, MD, USA). HEK293T cells were grown in Dulbecco’s Modified Eagle Medium (DMEM) containing 10% FBS (Gibco) and Penicillin/Streptomycin antibiotics (Gibco). PC-3 and C4-2 cells were cultured in RPMI 1640 medium containing 10% FBS and Penicillin/Streptomycin antibiotics. SKBR3 cells were maintained in McCoy’s 5A medium (Sigma) supplemented with 10% FBS (Millipore), 1% Penicillin/Streptomycin antibiotics (Corning), and 25 μg/mL plasmocin (Invivogen). All cells used in this study were grown 5% CO2 at 37°C and regularly tested as mycoplasma-negative.
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