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Human pdac cell lines

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The Human PDAC cell lines are a collection of cell lines derived from pancreatic ductal adenocarcinoma (PDAC) tissue samples. These cell lines are designed for research purposes and can be utilized in a variety of experimental settings to study PDAC biology and disease pathways.

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5 protocols using human pdac cell lines

1

Establishing Luciferase-Expressing PANC-1 Cells

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All human PDAC cell lines were from the American Type Culture Collection (ATCC). PANC-1 cells and MIA PaCa-2 cells were maintained in DMEM supplemented with 10% fetal bovine serum (FBS), 100 U/mL penicillin, 100 μg/mL streptomycin, 2 mM L-glutamine, and 1 mM sodium pyruvate. BxPC-3 cells and AsPC-1 cells were maintained in RPMI 1640 medium supplemented with 10% FBS, 100 U/mL penicillin, and 100 μg/mL streptomycin. HPAF-II cells were maintained in Eagle’s Minimum Essential medium supplemented with 10% FBS, 100 U/mL penicillin, and 100 μg/mL streptomycin. To facilitate bioluminescence imaging (BLI) of tumor growth, PANC-1 cells were permanently transfected with a luciferase-lentiviral vector in the UCLA vector core facility37 (link). Briefly, 1 × 106 PANC-1 cells immersed in 1 mL complete DMEM were transduced with luciferase-lentiviral vector in 6-well tissue culture plates. The viral containing media was removed after 16 h, and the cultures were replenished with fresh DMEM media. Cells were allowed to proliferate to a population size of 5 × 106. Limiting dilution was used to select individual cell that express the highest luciferase. The highest luciferase expressing clone (refers as PANC-1-luc) out of 10 single clones was used for further experiments.
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2

Establishment and Maintenance of PDAC Cell Lines

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Human PDAC cell lines were obtained from the American Type Culture Collection (ATCC, Rockville, MD) and maintained according to their recommendations. L3.6, originally isolated by Bruns et al. [14 (link)], was cultured in appropriate media. The mouse PDAC cell line Pan02, syngeneic to C57BL/6, was obtained from DTP, DCTD Tumor Repository (National Cancer Institute) and maintained according to supplier’s recommendations. All cell lines were cultured at 37°C in a humidified incubator supplemented with 5% CO2 and passaged a maximum of 30 times prior to restarting cultures from cryogenically preserved stocks. Cell lines tested negative for mycoplasma within the last 6 months, and due to low passage, were not authenticated by our laboratory. For orthotopic tumors, Pan02 cells were incubated 72hrs with lentivirus to induce stable expression of luciferase. For in vitro studies, compounds were dissolved in DMSO and stored as 100uM aliquots at −80°C (MLN8237, Selleck Chemicals, ApexBio) or −20°C (chaetocin, Sigma-Aldrich).
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3

Pancreatic Cancer Cell Line Cultivation

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We purchased human PDAC cell lines from American Type Culture Collection (ATCC), Rockville, Maryland. Cell lines were authenticated by short tandem repeat (STR) analysis at ATCC, per request, and were mycoplasma-free. CFPAC-1 and Capan-1 cell lines were grown in IMDM with 10% FBS, and 1% penicillin–streptomycin. Capan-2 cell line was grown in McCoy’s 5A (Modified) medium with 10% FBS, and 1% penicillin–streptomycin. The remaining PDAC cell lines were cultured in RPMI 1640 medium with GlutaMax, 10% FBS, and 1% penicillin–streptomycin in a humidified incubator containing 5% CO2 at 37 °C. All reagents for cell culture were purchased from Thermo Fisher Scientific (Waltham, MA).
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4

Authenticating and Culturing PDAC Cell Lines

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Human PDAC cell lines were purchased from the American Type Culture Collection (ATCC) and were authenticated by DNA fingerprinting at the University of Texas MD Anderson Characterized Cell Line Core. Cells were cultured as previously described14. Antibodies were purchased from Cell Signaling Technologies (Danvers, MA), Invitrogen (Carlsbad, CA), Sigma-Aldrich (St. Louis, MO), Santa Cruz Biotechnology (Dallas, TX), and Abcam (Cambridge, UK). Details of the antibodies are shown in S1 Table. The STAT-3 inhibitor was supplied by David Tweardy and was previously characterized in Bharadwaj et al. [21 (link)].
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5

3D Mini-Organotypic Model of PDAC

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Human PDAC cell lines were obtained from the American Type Culture Collection (ATCC, Rockville, USA). PS1 cell line (immortalized non-tumoural PSC) was developed and characterized previously in our laboratory39 (link). The mini-organotypic model37 (link), was used to examine the effect of genetic manipulation or ATRA treatment on PDAC cells (MiaPaCa2 and CaPan1) and PSC (PS1) co-cultured in 3D, physio-mimetic environment. Mini-organotypic cultures were incubated for 7 days before being harvested, fixed in 10% neutral buffered formalin (BAF‐0010‐03 A; CellPath Ltd), submerged in 70% ethanol, embedded in paraffin and cut into 4 µm sections. Treatment of organotypic cultures was performed daily with 1 µM ATRA (Cat No. R2625; Sigma) in 100% ethanol or vehicle control. For organotypic cultures using PTX3 siRNA, stellate cells were first transfected with PTX3 siRNA or non-targeting (NT) control, harvested after 24 h and then plated into organotypic gels, and incubated for 5 days. Cancer cell lines (MiaPaCa2 or AsPC1) and stellate cell line (PS1: with NT siRNA or PTX3 siRNA) were used. Medium below the inserts were replaced daily and collected (undernatant) at the end of the cultures for further analysis. Each experiment had three technical replicates with three biological repeats.
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