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2 protocols using apc conjugated cd90 antibody

1

Lung Cancer Cell Line Characterization

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A549, H460, H661, and H1299 lung cancer cell lines were obtained from the American Type Culture Collection (ATCC) (Manassas, VA, USA) and cultured with RPMI-1640 medium (Gibco, Grand Island, NY, USA) supplemented with 10% fetal bovine serum (Hyclone, South Logan, UT, USA). Cisplatin, 4′,6-diamidino-2-phenylindole (DAPI), and a PKH-26 Red Fluorescent Cell Linker Kit were purchased from Sigma-Aldrich Chemical Company (St. Louis, MO, USA). FITC-conjugated CD44 antibody, APC-conjugated CD90 antibody, and corresponding isotype controls were purchased from BD Biosciences (San Jose, CA, USA). Anti-human CD44, CD90, and p53 primary antibodies were purchased from Abcam (Cambridge, MA, USA). CCR2 antibody was obtained from R&D (Minneapolis, MN, USA); CD68 antibody and Lipofectamine 2000 reagent were purchased from Invitrogen (Carlsbad, CA, USA). Secondary antibodies FITC-conjugated goat anti-rabbit IgG and Cy3-conjugated goat anti-mouse IgG were purchased from Jackson ImmunoResearch (West Grove, PA, USA). pCMV-Neo-Bam p53 R249S was a gift from Bert Vogelstein (Addgene plasmid # 16438), and pCMV-Neo-Bam p53 wt (wt p53) was a gift from Bert Vogelstein (Addgene plasmid # 16434).
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2

Isolation and Characterization of Neonatal Rat Cardiac Cells

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Cardiac cells were isolated from the ventricles of 2-day old neonatal rat hearts according to previously described methods [25 (link), 28 (link)]. Animals were sacrificed using humane standards approved by the Institutional Animal Care and Use Committee (IACUC) of Duke University. Ventricles were harvested, minced, and enzymatically dissociated by serial digestion with trypsin and collagenase. Isolated cells were resuspended in DMEM/F-12 with 10% Fetal Bovine Serum and 10% Horse Serum, and pre-plated for 45 min at 37 °C to increase the fraction of cardiomyocytes in the cell suspension [28 (link), 29 (link)]. To assess cardiomyocyte purity, pre-plated cells were fixed and permeabilized according to the manufacturer instructions (BD Biosciences # 554714), then stained with cardiac troponin T (cTnT) primary antibody (Abcam ab45932) and Alexa Fluor-conjugated secondary antibody. To assess fraction of endothelial cells, pre-plated cells were washed with PBS and stained with PE-conjugated CD31 antibody (BD Biosciences #555027) and APC-conjugated CD90 antibody (BD Biosciences #561409). Stained cells were analyzed in Beckman Astrios Sorter and BD FACSCanto A analyzer at the Duke Cancer Institute’s Flow Cytometry Shared Resource. Endothelial cells and fibroblasts were identified as CD31+ and CD90+ /CD31 [30 (link)] cells, respectively.
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