RosetteSep™ HLA B Cell Enrichment Cocktail

Immunodensity negative selection cocktail

New look, same high quality and support! You may notice that your instrument or reagent packaging looks slightly different from images displayed on the website, or from previous orders. We are updating our look but rest assured, the products themselves and how you should use them have not changed. Learn more

RosetteSep™ HLA B Cell Enrichment Cocktail

Immunodensity negative selection cocktail

From: 826 USD
Catalog #
15064HLA_C
Immunodensity negative selection cocktail

Product Advantages


  • Fast and easy-to-use

  • Requires no special equipment or training

  • Isolated cells are untouched

What's Included

  • RosetteSep™ HLA B Cell Enrichment Cocktail (Catalog #15064HLA)
    • RosetteSep™ HLA B Cell Enrichment Cocktail, 5 x 2 mL
  • RosetteSep™ HLA B Cell Enrichment Cocktail (Catalog #15084HLA)
    • RosetteSep™ HLA B Cell Enrichment Cocktail, 20 x 2 mL
New look, same high quality and support! You may notice that your instrument or reagent packaging looks slightly different from images displayed on the website, or from previous orders. We are updating our look but rest assured, the products themselves and how you should use them have not changed. Learn more
Products for Your Protocol

Overview

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 non-B cells and red blood cells (RBCs). When centrifuged over a buoyant density medium such as RosetteSep™ DM-L (Catalog #15705) or Lymphoprep™ (Catalog #07801), 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, or other downstream applications.

Please Note: In light of the new EU Regulation 2017/746 (IVDR) of the European Parliament and of the Council on in vitro diagnostic medical devices, which is expected to become effective in 2022, STEMCELL recently deregistered and removed the CE IVD claims associated with these products, and they are now labeled “For Research Use Only”. Please note there have been no changes to the form, function and quality assurances associated with these products. For more information please contact the Quality Assurance and Regulatory Department at qaschangenote@stemcell.com.
Subtype
Cell Isolation Kits
Cell Type
B Cells
Species
Human
Sample Source
Buffy Coat, Whole Blood
Selection Method
Negative
Application
Cell Isolation, In Vitro Diagnostic
Brand
RosetteSep
Area of Interest
HLA, Immunology

Data Figures

FACS Histogram Results with RosetteSep™ HLA B Cell Enrichment Kit

Figure 1. 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%.

Protocols and Documentation

Find supporting information and directions for use in the Product Information Sheet or explore additional protocols below.

Document Type
Product Name
Catalog #
Lot #
Language
Catalog #
15064HLA, 15084HLA
Lot #
1000081196 and all lots below
Language
English
Catalog #
15064HLA, 15084HLA
Lot #
1000081196 and all lots below
Language
Multi
Catalog #
15064HLA, 15084HLA
Lot #
Lots above 1000081196
Language
English
Catalog #
15064HLA, 15084HLA
Lot #
Lots above 1000081196
Language
Multi
Catalog #
15084HLA
Lot #
All
Language
English
Catalog #
15084HLA
Lot #
All
Language
MULTI
Document Type
Safety Data Sheet
Catalog #
15064HLA, 15084HLA
Lot #
All
Language
English

Applications

This product is designed for use in the following research area(s) as part of the highlighted workflow stage(s). Explore these workflows to learn more about the other products we offer to support each research area.

Resources and Publications

Frequently Asked Questions

What is RosetteSep™?

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

How does RosetteSep™ work?

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 density centrifugation medium (e.g. Ficoll-Paque™ PLUS, Lymphoprep™).

What factors affect cell recovery?

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

Which cell samples can RosetteSep™ be used with?

RosetteSep™ can be used with leukapheresis samples, bone marrow 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 100 RBCs for every nucleated cell (RBCs can be added if necessary).

Can RosetteSep™ be used with previously frozen or cultured cells?

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.

Can RosetteSep™ be used to enrich progenitors from cord blood?

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 Ficoll™, which can lead to a higher RBC contamination than peripheral blood separations.

Does RosetteSep™ work with mouse cells?

No, but we have developed EasySep™, a magnetic-based cell isolation system which works with mouse and other non-human species.

Which anticoagulant should be used with RosetteSep™?

Peripheral blood should be collected in heparinized Vacutainers. Cord blood should be collected in ACD.

Should the anticoagulant be washed off before using RosetteSep™?

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

Contact STEMCELL Technologies

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