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Fab170p

Manufactured by R&D Systems

The FAB170P is a high-quality laboratory centrifuge designed for general purpose applications. It features a maximum speed of 17,000 RPM and a maximum RCF of 24,600 x g. The centrifuge accommodates a variety of rotor options to handle different sample volumes and tube sizes. The FAB170P is a reliable and versatile laboratory equipment piece for researchers and scientists.

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3 protocols using fab170p

1

Flow Cytometric Analysis of Stem Cell Markers

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For flow cytometric analysis, the cells were harvested and dissociated into single cells with 0.25% trypsin and then washed in PBS plus 0.5% BSA twice. After washing, the cells were stained with antibodies to CXCR4 (FAB170P; R&D system), c-Kit (FAB332A; R&D system) and DAZL (ab34139; abcam) for 40 min at 4°C. After washing by PBS twice, the cell pellet was re-suspended in 300 μl PBS for the final flow cytometric analysis of CXCR4 and c-Kit. Besides, the second antibody (ZF-0511, 1:400, Alexa Fluor 488-conjugated goat anti-rabbit IgG, ZSGB-BIO) was added into DAZL treatment for 40 min at 4°C. After that, the cells were washed twice with PBS and re-suspended in 300 μl of PBS for the final flow cytometric analysis. As a control for the analysis, the undifferentiated cells in a separate tube were treated with a mouse IgG1 APC-conjugated antibody (IC002A; R&D system) and a mouse IgG1 isotype control-PE (IC002P; R&D system) for c-Kit and CXCR4, respectively. For DAZL, the undifferentiated cells were only strained with the second antibody. Finally, cells analysis was performed on the Becton-Dickinson FACS Calibur platform.
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2

Antibody Utilization for Western Blot, IF, and ChIP

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The following commercially available antibodies were used at the indicated concentrations for Western blot (WB) immunofluorescence (IF), and chromatin immunoprecipitation (ChIP) analyses: JMJD3 (GTX124222, GeneTex, 1:250 IF, 1:500 WB); H3K27me3 (GTX121184, GeneTex, 1:1000 WB, 1–2 μg/ChIP); histone H3 (AB1791, Abcam, 1–2 μg/ChIP); β-actin (A2228, Sigma, 1:2000 WB); lamin A/C (GTX101126, GeneTex, 1:400 IF); γH2AX (GTX61796, GeneTex, 1:400 IF); and Alexa Fluor 488 Phalloidin (A12379, Molecular Probes, 1:40).
The following commercially available antibodies were used at the indicated dilutions for flow cytometry (FC) analyses: VEGFR-PE (FAB357P, R&D Systems, 1:50); IL-6Rα-PE (352803, BioLegend, 1:50); CXCR4-PE (FAB170P, R&D Systems, 1:50); uPAR-FITC (3936CJ, American Diagnostics, 1:50); CXCR1-Alexa647 (335201, BioLegend, 1:50); CXCR2-PE (32075, BioLegend, 1:50); CCR1-PE (335201, BioLegend, 1:50); CCR3-PE (310705, BioLegend, 1:50); CCR5-FITC (313705, BioLegend, 1:50); GM-CSFa-FITC (306906, BioLegend, 1:50); IgG-PE (IC002P, R&D Systems, 1:50); and IgG-fluorescein (IC002F, R&D Systems, 1:50).
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3

Quantifying CXCR4, CXCR7, and CXADR Expression

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The breast cancer cell lines were harvested with Versene and washed twice with cold PBS. Cells were incubated at 4°C for 30 minutes to 1 hour with PE-conjugated mouse anti-CXCR4 (FAB170P; R&D Biosystems, Minneapolis, MN) mouse anti-CXCR7 (FAB42271P; R&D Biosystems), or rabbit anti-CXADR (10799-R271-P; Sino Biological Inc, Chesterbrook, PA). PE-conjugated mouse IgG2A antibody (IC003P; R&D Biosystems) or monoclonal rabbit IgG (IC105P; R&D Biosystems) were used as isotype controls. After incubation, the cells were washed twice in cold PBS, then resuspended in 0.5 mL ice-cold PBS and placed on ice. Analysis of receptor expression was conducted via flow cytometry using a FACSCalibur flow cytometer (BD Biosciences).
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