• Compare Products
Menu
Account
Make more informed purchasing decisions with our new product availability and delivery estimate feature, now available on all product pages, in your cart, and during checkout.

RosetteSep™ HLA T Cell Enrichment Cocktail

Immunodensity negative selection cocktail

Loading...
 
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 T Cell Enrichment Cocktail

Immunodensity negative selection cocktail

From: 952 USD
Catalog #
(Select a product)
Immunodensity negative selection cocktail
Add to Wish List

Product Advantages


  • Fast and easy-to-use

  • Requires no special equipment or training

  • Isolated cells are untouched

What's Included

  • RosetteSep™ HLA T Cell Enrichment Cocktail (Catalog #15061HLA)
    • RosetteSep™ HLA T Cell Enrichment Cocktail, 5 x 2 mL
  • RosetteSep™ HLA T Cell Enrichment Cocktail (Catalog #15081HLA)
    • RosetteSep™ HLA T Cell Enrichment Cocktail, 20 x 2 mL
Products for Your Protocol
To see all required products for your protocol, please consult the Protocols and Documentation.
  1. Lymphoprep™
    Lymphoprep™

    Density gradient medium for the isolation of mononuclear cells

  2. Dulbecco's Phosphate Buffered Saline with 2% Fetal Bovine Serum
    Dulbecco's Phosphate Buffered Saline with 2% ...

    Cell culture buffer

Overview

The RosetteSep™ HLA T Cell Enrichment Cocktail is designed to isolate T cells from whole blood by negative selection. Unwanted cells are targeted for removal with Tetrameric Antibody Complexes (TAC) recognizing non-T cells and red blood cells (RBCs). When centrifuged over a buoyant density medium such as RosetteSep™ DM-L (Catalog #15705) or Lymphoprep™ (a href="https://www.stemcell.com/products/lymphoprep.html">Catalog #18060), the unwanted cells pellet along with the RBCs. The purified T 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
T 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

Typical RosetteSep™ HLA T Cell Enrichment Profile

Figure 1. Typical RosetteSep™ HLA T Cell Enrichment Profile

Starting with fresh whole blood the CD3+ cell content of the enriched fraction typically ranges from 90% - 97%. Red blood cells were removed by lysis prior to flow cytometry.

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
Document Type
Product Information Sheet 1
Product Name
RosetteSep™ HLA T Cell Enrichment Cocktail
Catalog #
15061HLA, 15081HLA
Lot #
Lots above 1000081702
Language
English
Document Type
Product Information Sheet 2
Product Name
RosetteSep™ HLA T Cell Enrichment Cocktail
Catalog #
15061HLA, 15081HLA
Lot #
1000081702 and all lots below
Language
English
Document Type
Product Information Sheet 3
Product Name
RosetteSep™ HLA T Cell Enrichment Cocktail
Catalog #
15061HLA, 15081HLA
Lot #
Lots above 1000081702
Language
Multi
Document Type
Product Information Sheet 4
Product Name
RosetteSep™ HLA T Cell Enrichment Cocktail
Catalog #
15061HLA, 15081HLA
Lot #
1000081702 and all lots below
Language
Multi
Document Type
Product Information Sheet 1
Product Name
RosetteSep™ HLA T Cell Enrichment Cocktail
Catalog #
15081HLA
Lot #
All
Language
English
Document Type
Product Information Sheet 2
Product Name
RosetteSep™ HLA T Cell Enrichment Cocktail
Catalog #
15081HLA
Lot #
All
Language
MULTI
Document Type
Safety Data Sheet
Product Name
RosetteSep™ HLA T Cell Enrichment Cocktail
Catalog #
15061HLA, 15081HLA
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.

Research Area
Workflow Stages

Resources and Publications

Educational Materials (5)

Cell Separation Products for HLA Analysis
Brochure
Cell Separation Products for HLA Analysis
Human Immune Cytokines
Wallchart
Human Immune Cytokines
Frequencies of Human Cell Types in Blood-Related Sources
Wallchart
Frequencies of Human Cell Types in Blood-Related Sources
Isolate Highly Purified Cells for HLA Analysis with RosetteSep™ Immunodensity Cell Isolation
1:21
Video
Isolate Highly Purified Cells for HLA Analysis with RosetteSep™ Immunodensity Cell Isolation
Optimize the Flow Cytometry Crossmatch Assay: Save Time Without Compromising Sensitivity
1:01:28
Webinar
Optimize the Flow Cytometry Crossmatch Assay: Save Time Without Compromising Sensitivity

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.

Publications (1)

Provision of continuous maturation signaling to dendritic cells by RIG-I-stimulating cytosolic RNA synthesis of Sendai virus. Okano S et al. Journal of immunology (Baltimore, Md. : 1950) 2011 FEB

Abstract

Dendritic cell (DC)-based immunotherapy has potential for treating infections and malignant tumors, but the functional capacity of DC must be assessed in detail, especially maturation and Ag-specific CTL priming. Recent reports suggest that DC that are provided with continuous maturation signals in vivo after transfer into patients are required to elicit the full DC functions. We demonstrate in this study that the rSendai virus vector (SeV) is a novel and ideal stimulant, providing DC with a continuous maturation signal via viral RNA synthesis in the cytosol, resulting in full maturation of monocyte-derived DC(s). Both RIG-I-dependent cytokine production and CD4 T cell responses to SeV-derived helper Ags are indispensable for overcoming regulatory T cell suppression to prime melanoma Ag recognized by T cell-1-specific CTL in the regulatory T cell abundant setting. DC stimulated via cytokine receptors, or TLRs, do not show these functional features. Therefore, SeV-infected DC have the potential for DC-directed immunotherapy.
View publication
View All Publications

Related Products

Related Products

Labeling Antibodies

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
Quality Statement:

PRODUCTS ARE FOR RESEARCH USE ONLY AND NOT INTENDED FOR HUMAN OR ANIMAL DIAGNOSTIC OR THERAPEUTIC USES UNLESS OTHERWISE STATED. FOR ADDITIONAL INFORMATION ON QUALITY AT STEMCELL, REFER TO WWW.STEMCELL.COM/COMPLIANCE.

Copyright © 2025 by STEMCELL Technologies. All rights reserved.