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Fitc conjugated secondary antibody

Manufactured by Agilent Technologies
Sourced in Denmark, United Kingdom

FITC-conjugated secondary antibody is a fluorescent-labeled antibody that binds to the primary antibody, allowing for the detection and visualization of target proteins or molecules in various applications such as immunofluorescence, flow cytometry, and Western blotting.

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15 protocols using fitc conjugated secondary antibody

1

FITC-labeled Antibody Binding Assay

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The Mov18 primary antibody (10 μg/mL,
Enzo Life Sciences)
was added to tumor cells (3 × 105) in 100 μL
of phosphate-buffered saline (PBS) + 1% bovine serum albumin, and
the mixture was incubated for 1 h at room temperature. The antibody
binding was detected by an fluorescein isothiocyanate (FITC)-conjugated
secondary antibody (1:200, Dako) for 30 min at 4 °C in the dark.
For each sample, at least 10 000 cells were acquired with an
Epics-XL flow cytometer (Beckman Coulter) and data were subsequently
analyzed using the WinMDi software.
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2

Immunofluorescence and Immunohistochemistry of p27 and Myc

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Cytospin preparations were fixed with paraformaldehyde 3.7% in PBS for 10 minutes to room temperature and permeabilized with 0.2% triton X-100 (10 minutes). Anti-p27 (C-19) and anti-Myc antibodies (N-262, all antibodies were rabbit polyclonals from Santa Cruz Biotech.) were incubated overnight, and Texas Red or FITC-conjugated secondary antibody (Dako) were used to detect the presence of p27 and Myc. Samples were mounted with Vectashield (Vector) containing 4’-6-diamidino-2-phenylindole (DAPI) to stain nuclei and photographed under a fluorescence microscope. For immunohistochemistry, the CLL, sections of CLL lymph nodes were arrayed into a new paraffin block using a tissue microarray (TMA) workstation (Beecher Instruments, Silver Spring, MD). Immunohistochemical staining for Myc (Y29 rabbit polyclonal antibody from Dako) and p27 (SX53G8 monoclonal antibody fom Dako) was performed following conventional automated protocols in a Autostainer Plus device (Dako).
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3

Intracellular c-Myc Protein Expression Analysis

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Intracellular c-Myc protein expression was detected in
the treated and control groups by flow cytometry using
a primary antibody against human c-Myc protein and
fluorescein isothiocyanate (FITC)-conjugated secondary
antibody (Dako, Denmark). Before the antibody reaction,
cells were treated with reagents from a permeabilization kit
(Dako) according to the manufacturer’s instructions. The
mean fluorescence intensity (MFI) of the antibody-reacted
cells as a protein expression level and the percentage of
reacted cells were evaluated in both the control and treated
groups.
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4

Immunofluorescence Detection of Neurotrophin Receptors

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Immunofluorescence was performed following the procedures previously described. Briefly, paraffin sections (5 mm) were deparaffinised, washed three times in PBS for 5 min, blocked with 5% serum for 30 min and incubated overnight at 4 °C with anti-NT primary antibody (1:100; United States Biological, Massachusetts, USA), anti-NTR2 primary antibody (1:50; GeneTex, California, USA) and anti-NTR3 primary antibody (1:50; Bioss, Massachusetts, USA). After rinsing three times with PBS, the slides were incubated with FITC-conjugated secondary antibody (1:50; Dako, Carpinteria, CA, USA) for 30 min. After washing three times in PBS, the cell nuclei were stained by DAPI (Sigma, Buchs, Switzerland) for 10 min at room temperature. Images were acquired with a fluorescence microscope (IX 81; Olympus, Tokyo, Japan).
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5

Immunofluorescence Analysis of Cytoskeleton

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HUVECs were grown on coverslips and exposed to treatments. Cells were fixed with 4% paraformaldehyde for 30 min and permeabilized with 0.1% Triton X for 5 min. Blocking was performed with 3% normal serum for 20 min. Cells were incubated with antibody against tubulin (Santa Cruz) and FITC-conjugated secondary antibody (K00018968, Dako North America Inc., Dako, Denmark). After washing the nuclei were counterstained with 4'-6-diamidino-2-phenylindole (DAPI) (Sigma). The coverslips were mounted with Vectashield mounting medium (Vector Laboratories, Burlingame, CA). Immunofluorescence was visualized using an Olympus BX41 microscope and recorded with a high-resolution DP70 Olympus digital camera. Pictures were photographed.
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6

Quantifying Cell Surface Markers

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Cells were fixed in 1% paraformaldehyde and stained with HUTS4 and B44 antibodies according to manufacturer's instructions followed by detection with FITC-conjugated secondary antibody (Dako, Ely. UK). Data was acquired with a FACSCantoII (BD Biosciences, Oxford, UK) and analysed using FlowJo software. Isotype-controls were used to determine baseline parameters in these experiments.
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7

Immunofluorescence Analysis of Phospho-AMPK in L6 Myotubes

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L6 myotubes were grown on coverslips, treated as described below, then fixed with 4% paraformaldehyde and permeabilized with 0.1% Triton-X. The cells were then blocked using 3% normal serum for 20 min and incubated with an antibody against p-AMPK (BD Transduction Laboratories) and a FITC-conjugated secondary antibody (K00018968, Dako North America Inc., Dako, Denmark). After washing, the nuclei were counterstained with 4′,6-diamidino-2-phenylindole (Sigma). Immunofluorescence was visualized using an Olympus BX41 microscope (Tokyo, Japan) and images were obtained using a high-resolution DP70 Olympus digital camera.
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8

Immunofluorescence Analysis of β-catenin

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HK-2 cells were seeded on chamber slides (Thermo Scientific) and incubated with HSA or Dkk-3 treatments. Cells were fixed with 4% paraformaldehyde (Sigma-Aldrich), followed by permeabilization in 0.25% Triton X 100 and 2% BSA (Sigma-Aldrich) incubation. The slides were then incubated in primary antibody against β-catenin (BD Bioscience) overnight thereafter incubated with the corresponding FITC-conjugated secondary antibody (Dako). The chamber slides were mounted with ProLong antifade mounting medium (Invitrogen) and examined under fluorescence microscope (400X; Leica, Bensheim, Germany).
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9

Measuring Intracellular pATM in Cocultures

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For measurement of intracellular pATM, cocultures were separated using 0.3 μm membrane Transwell plates (Corning Life Sciences). FBs were seeded in the lower chamber and allowed to rest overnight before DCs were added to the upper chambers. Cultures were irradiated and activated immediately with LPS/IFN-γ. After 12 h, DCs were fixed in cold 2% formaldehyde/PBS and permeabilized with cold methanol. The binding of primary pATM (Ser1981; eBioscience) antibody was detected with a FITC-conjugated secondary antibody (Dako, Glostrup, Denmark). Cells were acquired using a MACSQuant cytometer (Miltenyi Biotec) and analyzed using FlowJo (Tree Star).
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10

uPAR Expression Profiling by FACS

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Cell sorting was performed on single cell suspension from H446 cells stained with primary antibody against uPAR (Mouse monoclonal antibody, 1:100, American Diagnostica, No. 3936). Then, the cells were washed and incubated with FITC-conjugated secondary antibody (Dako) for 30min. All samples were measured using a FACSCalibur flow cytometer (BD Biosciences) and analyzed with CellQuest software (BD Biosciences). uPAR+ cells and uPAR- cells sorted by FACS were used in all of our experiments (S1 Fig).
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