RosetteSep™ HLA B Cell Enrichment Cocktail

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Immunodensity Negative Selection Cocktail



Free from STEMCELL

  • RosetteSep® Box
  • Box top label for HLA Human B Cell Enrichment Kit For labeling 250 mL blood.
RosetteSep® Box
The RosetteSep™ HLA B Cell Enrichment Cocktail is designed to isolate B cells from whole blood by negative selection. Unwanted cells are targeted for removal with Tetrameric Antibody Complexes recognizing CD2, CD3, CD16, CD36, CD56, CD66b, CD71 and glycophorin A on red blood cells (RBCs). When centrifuged over a buoyant density medium such as RosetteSep™ DM-L (Catalog #15705) or Ficoll-Paque™ PLUS (Catalog #07957), the unwanted cells pellet along with the RBCs. The purified B cells are present as a highly enriched population at the interface between the plasma and the buoyant density medium. The desired cells are immediately ready for serology or flow cytometry crossmatch assays. Where indicated, the product has been CE Marked in the EU according to the 98/79/EC in vitro diagnostic device directive and complies with its requirements.
Product Name Description Catalog # Size Price Quantity
RosetteSep™ HLA B Cell Enrichment Cocktail Immunodensity isolation of untouched B cells for HLA analysis 15064HLA For labeling 250 mL of blood 558.00 USD      
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RosetteSep™ HLA B Cell Enrichment Cocktail Immunodensity isolation of untouched B cells for HLA analysis 15084HLA For labeling 1000 mL of blood 2011.00 USD      
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Recommended for:
The isolation of human B cells from whole blood by negative selection for HLA analysis
Components:
RosetteSep™ HLA B Cell Enrichment Cocktail
Accessory Products:
• Ficoll-Paque™ PLUS (Catalog #07957), or
• RosetteSep™ DM-L (Catalog #15705)
Legal Statement: Ficoll-Paque™ PLUS is a trademark of GE Healthcare Ltd.
Product Type: Cell isolation products
Area of Interest: HLA
Cell Isolation Product Type: Reagents
Cell Source: Buffy coat, Whole blood
Cell Type: B cells
Popular Product Line: RosetteSep
Selection Method: Negative
Species: Human

Procedures and instruction manuals:

Educational resources:

MSDS:

FAQS:


  • Q. WHAT IS ROSETTESEP®?

    A. RosetteSep® is a rapid cell separation procedure for the isolation of purified cells directly from whole blood without columns or magnets.

  • Q. HOW DOES ROSETTESEP® WORK?

    A. The antibody cocktail crosslinks unwanted cells to red blood cells (RBCs), forming rosettes. The unwanted cells then pellet with the free RBCs when centrifuged over a buoyant density medium.

  • Q. WHICH CELL SAMPLES CAN ROSETTESEP® BE USED WITH?

    A. RosetteSep® can be used with leukapheres, bone marrow samples or buffy coat, as long as: the concentration of cells does not exceed 5 x 107 per mL (can dilute if necessary); and there are at least 20 RBCs for every nucleated cell (RBCs can be added if necessary).  For a full procedure click here.

  • Q. CAN ROSETTESEP® BE USED WITH PREVIOUSLY FROZEN OR CULTURED CELLS?

    A. Yes. Cells should be re-suspended at 2 – 5 x 107 cells / mL in PBS + 2% FBS. Fresh whole blood should be added at 250 µL per mL of sample, as a source of red cells.

  • Q. WHICH ANTICOAGULANT SHOULD BE USED WITH ROSETTESEP®?

    A. Peripheral blood should be collected in heparinized Vaccutainers. Cord blood should be collected in ACD.

  • Q. SHOULD THE ANTICOAGULANT BE WASHED OFF BEFORE USING ROSETTESEP®?

    A. No, the antibody cocktail can be added directly to the sample.

  • Q. WHICH FACTORS AFFECT CELL RECOVERY?

    A. The temperature of the reagents can affect cell recovery. All reagents should be at room temperature (sample, FicollTM, PBS, centrifuge) before performing the isolations. Layering can also affect recovery so be sure to carefully layer the sample to avoid mixing with the FicollTM as much as possible. Be sure to collect the entire enriched culture without disturbing the RBC pellet. A small amount of FicollTM can be collected without worry.

  • Q. CAN ROSETTESEP® BE USED TO ENRICH PROGENITORS FROM CORD BLOOD?

    A. Yes. Sometimes cord blood contains immature nucleated red cells that have a lower density than mature RBCs. These immature red cells do not pellet over FicollTM, which can lead to a higher RBC contamination than peripheral blood separations.

  • Q. DOES ROSETTESEP® WORK WITH MOUSE CELLS?

    A. No, but we have developed EasySep®, a magnetic-based separation for the isolation of mouse cells.

Product Name

Description

Catalog #

Ficoll-Paque™ PLUS Density Gradient Medium for the Isolation of Mononuclear Cells 07907
CD19 Antibody, Clone 4G7, PE-Conjugated Mouse Monoclonal Antibody to Human CD19 - PE Conjugated 10509
CD19 Antibody, Clone 4G7, FITC-Conjugated Mouse Monoclonal Antibody to Human CD19 - FITC Conjugated 10409
CD20 Antibody, Clone L27, PE-Conjugated Mouse Monoclonal Antibody to Human CD20 - PE Conjugated 10510
CD20 Antibody, Clone L27, FITC-Conjugated Mouse Monoclonal Antibody to Human CD20 - FITC Conjugated 10410

FACS Histogram Results with RosetteSep® HLA B Cell Enrichment Kit


FACS Histogram Results with RosetteSep® HLA B Cell Enrichment Kit
Starting with whole blood, the CD19+ cell content of the enriched fraction typically ranges from 59.3% - 97.2%.


RosetteSep® Procedure


RosetteSep® Procedure