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Anti-Human CD3 Magnetic Particles - DM
Anti-Human CD3 Magnetic Particles - DM

Positive selection and depletion of human CD3-positive PBMC. Leukocytes were labeled with BD IMag™ anti-human CD3 Particles - DM (Cat. No. 552593) as described in the protocol. After labeling, the cells were separated using the BD IMag™ Cell Separation Magnet (Cat. No. 552311), and the negative (CD3-) and positive (CD3+) fractions were collected. Please refer to the Separation Flow Chart to identify the separated cell populations represented in this figure. For flow cytometric analysis, fresh PBMC (left panel), the negative fraction (middle panel), and the positive fraction (right panel) were stained with APC Anti-Human CD3 (Cat. No. 555335). The percent CD3+ cells in each sample is given.

Positive selection and depletion of human CD3-positive PBMC. Leukocytes were labeled with BD IMag™ anti-human CD3 Particles - DM (Cat. No. 552593) as described in the protocol. After labeling, the cells were separated using the BD IMag™ Cell Separation Magnet (Cat. No. 552311), and the negative (CD3-) and positive (CD3+) fractions were collected. Please refer to the Separation Flow Chart to identify the separated cell populations represented in this figure. For flow cytometric analysis, fresh PBMC (left panel), the negative fraction (middle panel), and the positive fraction (right panel) were stained with APC Anti-Human CD3 (Cat. No. 555335). The percent CD3+ cells in each sample is given.

Product Details
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BD IMag™
CD3E; T3E; TCRE; cd 3; cd-3; cd3; CD3-epsilon; 916
Human (QC Testing)
Mouse IgG2a, κ
Cell separation (Routinely Tested)
V 5T-CD03.05
AB_398523
Aqueous buffered solution containing BSA and ≤0.09% sodium azide.
RUO


Preparation And Storage

Store undiluted at 4°C. The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography. Antibody or streptavidin was conjugated to the magnetic particles under optimum conditions, and unconjugated antibody/streptavidin was removed.

Recommended Assay Procedures

Peripheral Blood Mononuclear Cells (PBMC) are labeled with BD IMag™ anti-human CD3 Particles - DM according to the Magnetic Labeling Protocol. This labeled cell suspension is then placed within the magnetic field of the BD IMag™ Cell Separation Magnet (Cat. No. 552311). Labeled cells migrate toward the magnet (positive fraction), leaving the unlabeled cells in suspension so they can be drawn off (negative fraction). The tube is then removed from the magnetic field for resuspension of the positive fraction. The separation is repeated to increase the purity of the positive fraction. The magnetic separation steps are diagrammed in the Separation Flow Chart. After the positive fraction is washed, the small size of the magnetic particles allows the positive fraction to be further evaluated in downstream applications such as flow cytometry.

MAGNETIC LABELING PROTOCOL

1. Prepare PBMC from anti-coagulated human blood, preferably by density gradient centrifugation using Ficoll-Paque™. Remove clumps of cells and/or debris by passing the suspension through a 70-µm nylon cell strainer.

2. Dilute BD IMag™ Buffer (10X) (Cat. no. 552362) 1:10 with sterile distilled water or prepare 1X BD IMag™ buffer by supplementing Phosphate Buffered Saline with 0.5% BSA, 2 mM EDTA, and 0.09% sodium azide). Store at 4°C.

3. Wash cells with an excess volume of 1X BD IMag™ buffer, and carefully aspirate all the supernatant.

4. Vortex the BD IMag™ anti-human CD3 Particles - DM thoroughly, and add 50 µl of particles for every 10^7 total cells.

5. MIX THOROUGHLY. Incubate at room temperature for 30 minutes.

6. Bring the BD IMag-particle labeling volume up to 1 - 8 x 10^7 cells/ml with 1X BD IMag™ buffer, and immediately place the tube on the Cell Separation Magnet. Incubate for 8 - 10 minutes.

7. With the tube on the Cell Separation Magnet, carefully aspirate off the supernatant. This supernatant contains the negative fraction.

8. Remove the tube from the Cell Separation Magnet, and add 1X BD IMag™ buffer to the same volume as in Step 6. Gently resuspend cells by pipetting up and down, and return the tube to the Cell Separation Magnet for another 2 - 4 minutes.

9. With the tube on the Cell Separation Magnet, carefully aspirate off the supernatant and discard.

10.Typically, after one wash, the purity of the positive fraction will be greater than 98%. If greater purity is desired, Steps 8 and 9 may be repeated to obtain purities greater than 99.0%.

11.After the final wash step, resuspend the positive fraction in an appropriate buffer or media, and proceed with downstream application(s).

The concentration of the BD IMag™ anti-human CD3 Particles -DM has been optimized for the purification of CD3-positive T lymphocytes from human peripheral blood. When labeling target cell populations present at lower frequencies, fewer BD IMag™ particles can be used. Conversely, when labeling target cell populations that are present in higher frequencies, more particles should be used. To determine the optimal concentration of the BD IMag™ anti-human CD3 Particles -DM for a particular application, a titration in two-fold increments is recommended.

NOTE: Avoid nonspecific labeling by working quickly and keeping incubation times to a minimum.

Product Notices

  1. BD IMag™ particles are prepared from carboxy-functionalized magnetic particles which are manufactured by Skold Technology and are licensed under US patent number 7,169,618.
  2. Ficoll-Paque is a trademark of Amersham Biosciences Limited.
  3. Caution: Sodium azide yields highly toxic hydrazoic acid under acidic conditions. Dilute azide compounds in running water before discarding to avoid accumulation of potentially explosive deposits in plumbing.
  4. Source of all serum proteins is from USDA inspected abattoirs located in the United States.
  5. Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.
552593 Rev. 8
Antibody Details
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HIT3a

BD IMag™ Anti-Human CD3 Particles DM are magnetic nanoparticles that have monoclonal antibody conjugated to their surfaces. These particles are optimized for the positive selection or depletion of CD3-bearing leukocytes using the BD IMag™ Cell Separation Magnet. CD3 has been reported to be expressed on all mature T lymphocytes and on developing thymocytes.

552593 Rev. 8
Format Details
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BD IMag DM
BD IMag DM
552593 Rev.8
Citations & References
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Development References (3)

  1. Knapp W. W. Knapp .. et al., ed. Leucocyte typing IV : white cell differentiation antigens. Oxford New York: Oxford University Press; 1989:1-1182.
  2. McMichael AJ. A.J. McMichael .. et al., ed. Leucocyte typing III : white cell differentiation antigens. Oxford New York: Oxford University Press; 1987:1-1050.
  3. Schlossman SF. Stuart F. Schlossman .. et al., ed. Leucocyte typing V : white cell differentiation antigens : proceedings of the fifth international workshop and conference held in Boston, USA, 3-7 November, 1993. Oxford: Oxford University Press; 1995.
552593 Rev. 8

Please refer to Support Documents for Quality Certificates


Global - Refer to manufacturer's instructions for use and related User Manuals and Technical data sheets before using this products as described


Comparisons, where applicable, are made against older BD Technology, manual methods or are general performance claims.  Comparisons are not made against non-BD technologies, unless otherwise noted.

For Research Use Only. Not for use in diagnostic or therapeutic procedures.