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5 protocols using fugen 6

1

Mouse Calbindin-D28k Promoter Assay

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The 3.2kb mouse calbindin-D28k promoter reporter, kind gifts from Dr. Harry T. Orr (University of Minnesota) [25 (link)] as well as the promoter deletion constructs were cloned in the pGL3 basic vector (Promega). Bioinformatics analysis of murine 3.2kb calbindin-D28k promoter was performed using the public domain Transcription Element Search System (TESS) software (http://www.cbil.upenn.edu/cgi-bin/tess/tess?RQ=WELCOME). NFAT expression vectors were kindly provided by Chi-Wing Chow (Albert Einstein College of Medicine). All transient transfection experiments were done in 96 well plates using Fugen-6 (Roche) or lipofectamine 2000 (Invitrogen) following manufacturer's recommendation. The pSV-β-galactosidase expression vector (Invitrogen) was a normalization control. Luciferase activity was measured 24 hours post transfection, using the manufacturer's protocol in the FLUOstar Omega luminometer (BMG LABTECH).
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2

Evaluating HAND1 Overexpression Effects

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Cells were plated at 3.0 × 105 per well using six-well plates, and transfected with either pcDNA4-HAND1 or empty vector (2.0 μg) using Fugen 6 (Roche, Indianapolis, IN, USA). The cells were replated in triplicates and cultured for 10–15 days in complete DMEM medium containing Zeocin (100 μg/ml) and stained with Gentian Violet after methanol fixation. For anchorage-independent growth, cells were transfected as above, and suspended in DMEM containing 0.3% agar, 10% fetal bovine serum, and layered on DMEM containing 0.6% agar, 10% FBS and Zeocin (100 μg/ml) in six-well plate at 48 h post-transfection. Colony formation was assessed at 4 weeks post-transfection.
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3

Cell Culture of Tumor Lines

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Tumor cell lines were grown in appropriate medium with 10% fetal bovine serum (FBS) 2 mM glutamine, 50 mg/mL penicillin, 50 mg/mL streptomycin (complete medium) at 37 °C in 5%CO2. PES43 human melanoma cells derived from a lung metastases of melanoma patient were grown in Iscove’s Modified Dulbecco’s Medium (IMDM). FB-1 human anaplastic thyroid cancer cell line (kindly provided by Dr. Melillo, University of Naples, Federico II, Italy) were grown in Dulbecco’s Modified Eagle’s Medium (DMED). B16-CXCR4 murine melanoma cells were obtained by transfection of B16 with pYF1-fusin plasmid containing human CXCR4 gene (kindly provided by Dr Aloj, NCI “Pascale”, Naples, Italy) using Fugen 6 (Roche Applied Science, Indianapolis, IN) in according to manufacturer’s instruction and grown in complete medium supplemented with 100 µg/mL G418. CHO and CHO cells transfected with human CXCR4 (CHO-CXCR4) were kindly provided by Dr. David McDermott (NIH, Bethesda, USA) and grown in complete medium supplemented with 1 mg/mL G418.
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LRP6 Overexpression in AD293 Cells

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AD293 cells were stably transfected with human UTR/GPR14 pcDNA3.1+ (Missouri S&T cDNA Resource Center, Rolla, MO, USA) using FUGEN6 (Roche, Diagnostics Operations Inc., Indianapolis, IN, USA). Positive cells were selected by G418 (Sigma-Aldrich). UTR overexpression was identified by western blot with anti-GPR14 (Santa Cruz, Dallas, TX, USA). Lipoprotein receptor related protein 6 (LRP6) -pCS2 (Addgene, from Dr. Xi He) was transfected to UT cells to induce LRP6 overexperssion. For western blot analysis, isolated proteins were size-fractionated by SDS–PAGE and transferred to polyvinylidene difluoride membrane. And then the membranes were incubated with primary antibodies followed by incubation with a Horseradish Peroxidase (HRP)-conjugated secondary antibody (Jackson, West Grove, PA, USA). All antibodies used here were: phosphor-JNK, JNK and phosphor-LRP6 (1490), LRP6 (Cell Signalling, Danvers, MA, USA), GAPDH (Kangchen, Shanghai, China).
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5

Endothelial Cell Differentiation and Angiogenesis

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Fetal bovine serum (FBS), Dulbecco’s modified Eagle’s medium: Nutrient mixture F-12 (D-MEM/F-12, Gibco, USA), bovine serum albumin (BSA), and trypsin/EDTA (Gibco-BRL); EGM-2 Bullet Kit (mixture of ascorbic acid, hydrocortisone, EGF, IGF-I, heparin, VEGF, and FGF2,; Lonza); insulin-transferrin-selenium sodium pyruvate (ITS; Invitrogen); Jagged1 Fc Chimera (599-JG; R&D Systems); rat immunoglobulin G (IgG) (I4131; Sigma Aldrich); PE-mouse anti-Rat CD31 (BD Pharmingen™); anti-Hif-1α antibody (Proteintech); R-PE-conjugated Donkey Anti-Goat IgG(H + L) (Proteintech); anti-Jagged-1 antibody (Affinity); anti-N1ICD antibody (CST); anti-Hey1 antibody (Abcam); anti-VEGF receptor2 antibody (Abcam); anti-Von Willebrand factor (vWF) antibody (Abcam); goat anti-rabbit IgG Alexa Fluor 594 (Invitrogen); TRIzol (Takara, Biotechnology, Dalian, China); 4,6-diamidino-2-phenylindole (DAPI; Molecular Probes); reverse Q-PCR kit, and RT-PCR kit, protein lysis buffer kit (Beyotime Biotechnology); anti-actin antibody (Sigma); horseradish peroxidase (HRP)-conjugated goat anti-rabbit and goat anti-mouse IgG (Beyotime Biotechnology); Matrigel (Corning); Dual-GLO Luciferase Assay System (Promega); Fugen6 (Roche).
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