Peripheral Blood Leukopaks

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StemExpress’ Peripheral Blood Leukopaks provide enriched peripheral blood mononuclear cells (PBMCs) with low granulocyte and red blood cells. This highly enriched PBMC fraction requires minimal downstream processing (i.e. Ficoll) and can be used directly for isolating high yields of immune cells, such as CD4+ T cells, CD8+ T cells, CD19+ B cells, monocytes, and other immune cells. High cell yields allow researchers greater reproducibility of experiments from a single donor (minimizing donor-to-donor variation), a decrease in same cell variability, and scalability of experiments. In addition, up to 12 Leukopaks can be collected from the same donor in a given year, providing an ample amount of PBMCs for large-scale experiments and research studies.

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High-Quality Leukopaks

Cell-rich Leukopaks are extracted using an FDA-approved apheresis machine. Once collected, Leukopaks are sent out on the day of collection to ensure you receive a fresh product.

  • 1×1010 TNCs/full bag
  • Highly-enriched PBMCs
  • ≥90% viability (fresh)
  • HBV, HCV, HIV negative
  • IRB approved

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Customize Your Leukopak

Our robust donor pool allows researchers the option to select specific donor criteria to suit their needs. Let us help you find the right donor.

  • 2500+ donors
  • Recallable donors
  • Donor demographics (i.e., age, weight, ethnicity, gender, blood type, etc.)
  • Donor lifestyle characteristics (i.e., BMI, smoker/non-smoker, etc.)
  • Medical history (i.e. allergies, medications, etc.)
  • HLA, RhD, and ABO typing available
  • Additional infectious disease screening (CMV, etc.)
  • Much more…..

We Can Isolate the Cells for You

Increase reproducibility by letting our highly trained laboratory technicians isolate the primary cells from a Leukopak for you. We follow cGMP/cGTP guidelines and employ 21 CFR Part 11 data management software (QMS) that guarantees operational excellence and consistent quality products, ensuring confidence in your research.

[/vc_column_text][/vc_column][/vc_row][vc_row][vc_column][vc_separator][/vc_column][/vc_row][vc_row el_class=”home_faq” css=”.vc_custom_1530138595014{margin-bottom: 5% !important;padding-right: 100px !important;padding-left: 100px !important;}”][vc_column][vc_custom_heading text=”Frequently Asked Questions” font_container=”tag:h1|font_size:34px|text_align:center|color:%2312b5ef|line_height:46px” use_theme_fonts=”yes” el_class=”product_heading”][vc_toggle title=”Can an apheresis donor be recalled for my experiments?”]Yes, a donor is eligible to donate white blood cells every 4 weeks.[/vc_toggle][vc_toggle title=”How many cells (PBMCs) can I isolate from a Leukopak?”]Usually around 8x10e9 PBMCs.[/vc_toggle][vc_toggle title=”Is same day delivery available?”]Yes, certain locations can receive same day courier delivery. We can also provide same day air shipments.[/vc_toggle][vc_toggle title=”Is LCMV testing an option?”]Yes, LCMV testing can be requested on all our Leukopaks.[/vc_toggle][/vc_column][/vc_row][vc_column][/vc_column]