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5 protocols using mia paca 2

1

Cultivation of Pancreatic Cancer Cell Lines

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Human MIAPaCa-2 and PANC-1 pancreatic cancer cells were purchased from the American Type Culture Collection (ATCC, VA, USA). MIA PaCa-2 and PANC-1 cells were cultured in Dulbecco’s modified Eagle’s medium (DMEM; Welgene, Gyeongsan, Korea) with 1% antibiotic-antimycotic and 10% fetal bovine serum (FBS). Cultures were maintained in an incubator with 95% air and 5% CO2 at 37°C.
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2

Establishment and Culturing of Isogenic Cell Lines

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KrasG12D and KrasWT mouse embryonic fibroblasts (MEFs) (a gift from Dr. Craig B. Thompson, Memorial Sloan Kettering Cancer Center, New York, NY, USA) were obtained from Cre recombinase-induced SV40 large T-immortalized Lox-Stop-Lox-K-RasG12D MEF [14 (link)]. MEFs and the pancreatic cancer cell line MIA PaCa-2 were cultured in DMEM medium (WELGENE, Gyeongsan-si, Korea) containing 10% fetal bovine serum and 1% penicillin/streptomycin. Another pancreatic cancer cell line, BXPC-3, and lung cancer cell lines A549 and H522 were cultured in RPMI 1640 medium (WELGENE) containing 10% fetal bovine serum and 1% penicillin/streptomycin. For leucine deprivation, cells were maintained in leucine-free DMEM or RPMI 1640 containing 10% dialyzed fetal bovine serum (FBS). MIA PaCa-2, A549, and H522 were obtained from Korean Cell Line Bank (Seoul, Korea) and BXPC-3 was obtained from the American Type Culture Collection (Manassas, VA, USA).
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3

Pancreatic Cancer Cell Lines Characterization

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Pancreatic cancer cell lines, AsPC-1, MiaPaCa-2, Panc-1, BxPC-3 and Capan-1 were obtained from the American Type Culture Collection (ATCC, USA). AsPC-1, BxPC-3 and Capan-1 cells were cultured in RPMI 1640 medium supplemented with 10% FBS and 1% antibiotic (Welgene, South Korea), while MiaPaCa-2 and Panc-1 cells were cultured in DMEM with 10% FBS and 1%. Cancer cell lines were authenticated by short tandem repeat (STR) DNA profiling analysis. Recombinant human Wnt3a and Wnt7a proteins were purchased from R&D Systems (USA). PG545 was provided by Progen Pharmaceuticals (Australia) and gemcitabine was from Sigma Chemical (USA). The recombinant His-tagged Wnt3a and Wnt7a proteins were from Proteintech Group (USA).
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4

Epigenetic Modulation of Pancreatic Cancer

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Five human pancreatic cancer cell lines (AsPC-1, CFPAC-1, MIA PaCa-2, PANC-1, and SUIT-2) were used in this study. AsPC-1, CFPAC-1, MIA PaCa-2, and PANC-1 were obtained from the American Type Culture Collection (ATCC, Manassas, VA, USA). SUIT-2 cells were purchased from the Japanese Collection of Research Bioresources (JCBR, Japan) cell bank (The National Institute of Biomedical Innovation, Health and Nutrition (NIBIOHN), Japan). Cell line AsPC-1 was cultured in RPMI-1640 (Welgene, Daegu, Korea); CFPAC-1 cells were maintained in Iscove's Modified Dulbecco's Medium (IMDM, Welgene); and MIA PaCa-2, PANC-1, and SUIT-2 cells were grown in Dulbecco's Modified Eagle Medium (DMEM, Welgene). All cell culture medium was supplemented with 10% fetal bovine serum (Hyclone, Logan, UT, USA) and 1% antibiotic-antimycotic (Gibco, Grand Island, NY, USA). All cell lines were incubated at 37°C in atmospheric conditions of 20% O2 and 5% CO2. To investigate the effect of 5-aza-dC treatment, cells were treated with 5 μM 5-aza-dC (Sigma, St. Louis, MO, USA) for 72 h.
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5

Combination Therapy for Pancreatic Cancer

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Cells and reagents. The MiaPaca-2 human pancreatic carcinoma cell line was obtained from the Korean Cell Line Bank (KCLB, Seoul, Korea). MiaPaca-2 cells were grown in Dulbecco's modified Eagle's medium (DMEM, Welgene, Gyeongsan, Korea) with 1% streptomycin and penicillin (Corning, Corning, NY, USA), and 10% fetal bovine serum (Tissue Culture Biologicals, Tulare, CA, USA) at 37˚C and 5% CO 2 in a humidified environment. Compounds [50 μM fisetin (TOCRIS, Bristol, UK) with/without 100 nM gemcitabine (Yuhan, Seoul, Korea)] were added, and the cells were incubated as described below. Cells were treated with dimethyl sulfoxide (DMSO) (0.25%) as a control.
Polyclonal antibodies against c-MYC, phospho-ERK1/2 and ERK1/2 were purchased from Cell Signaling Technology, Inc. (Beverly, MA, USA). Polyclonal α-tubulin (LF-PA0146) was purchased from Abfrontier (Seoul, Korea). Horseradish peroxidase (HRP)-conjugated donkey anti-rabbit IgG Ab (sc-2004) was purchased from Santa Cruz Biotechnology Inc. (Santa Cruz, CA, USA).
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