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StemExpress

Welcome to StemExpress - Distributed in the UK & Europe by Caltag Medsystems

StemExpress are a leading Biospecimen Provider of human bone marrow, cord blood, peripheral blood, Leukopaks, Mobilized Leukopaks, maternal blood, disease state products, and primary cells. They provide expediency from order to delivery and guarantee every sample arrives with the highest purity, viability, and quality researchers need to ensure confidence in their results.

Bone Marrow

StemExpress provides whole human bone marrow and bone marrow-derived primary cells. Bone marrow is collected by a certified medical professional from a maximum of four sites on the posterior iliac crest (100 mL total). Human bone marrow samples are shipped immediately to customers or processed into a specific primary cell population at our on-site FDA registered laboratory.

Further information on Bone Marrow Products

UNPROCESSED

PRIMARY CELLS

HIGH-QUALITY CELLS

High Quality Cells Viability and Purity

Figure 1. High Quality Cells - Viability and Purity

DONOR SELECTION

  • Extensive donor pool
  • Recallable and repeat donors
  • Specific donor demographics (age, weight, ethnicity, etc.)
  • Donor lifestyle characteristics (BMI, smoker/non-smoker, etc.)
  • Medical history (allergies, medications, etc.)
  • HLA, RhD, and ABO typing available
  • Additional infectious disease screening (CMV, etc.)

CELL COLLECTION/PROCESSING

  • Special processing procedures available
  • Customisable cell isolations and culture
  • Positive and Negative cell isolations
  • Multiple cell types from the same donor
  • Custom vialing sizes and cell counts

FLEXIBLE SHIPPING OPTIONS

  • Custom media and buffer
  • Customizable packaging options
  • Cryo shipping available
  • Fresh products shipped via QuickStat in controlled packaging.

Peripheral Blood

Human peripheral blood is one of the most easily accessible sources for obtaining unprocessed tissue and primary cells. At StemExpress's Stem Cell Collection Centers, normal and diseased unprocessed human peripheral blood products are collected from IRB consented donors and shipped out directly to our customers or quickly processed at FDA registered laboratory to ensure each primary cell type is of the highest quality. Each cell type is characterised by flow cytometry to guarantee our customers receive a pure and viable cell population for their research applications.

Further information on Peripheral Blood Products

UNPROCESSED

PRIMARY CELLS

HIGH-QUALITY PRIMARY CELLS

CD19-PE-A

Figure 2. Representative flow data of the purity (95%) of CD19 B cells isolated from peripheral blood mononuclear cells by means of negative selection.

DONOR SELECTION

  • Extensive donor pool
  • Recallable and repeat donors
  • Diseased donors*
  • Specific donor demographics (age, weight, ethnicity, etc.)
  • Donor lifestyle characteristics (BMI, smoker/non-smoker, etc.)
  • Medical history (allergies, medications, etc.)
  • HLA, RhD, and ABO typing available
  • Additional infectious disease screening (LCMV, etc.)

*Serum, plasma, PBMCs, and whole blood available from diseased donors only.

CELL COLLECTION / PROCESSING

  • Special processing procedures available
  • Customizable cell isolations and culture
  • Positive and negative cell isolations
  • Multiple cell types from the same donor
  • Custom vialing sizes and cell counts

FLEXIBLE SHIPPING OPTIONS

  • Custom media and buffer
  • Customizable packaging options
  • Cryo shipping available
  • Fresh products shipped via QuickStat in controlled packaging.

Mobilised Peripheral Blood

Human Mobilised Peripheral Blood is collected from healthy IRB consented donors that are injected with Granulocyte-Colony Stimulating Factor (G-CSF aka Neupogen®), Plerixafor (aka Mozobil®), or a combination of Plerixafor and G-CSF. These mobilisation agents increase circulating leukocytes and stimulate the bone marrow to produce a large number of hematopoietic stem cells, which are mobilised into the bloodstream, allowing for large quantities of stem cells and MNCs to be collected from a single donor.

Further information on Mobilised Peripheral Blood Products

High-Quality Mobilized Primary Cells

PI-A
CD34-PE-A

Figure 3. Representative flow data of the viability and purity of enriched CD34+ stem cells from mobilized peripheral blood prior to cryopreservation.

High-Quality Mobilised Leukopaks®

Size Distribution
Viability
CD34 Frequency

Figure 4. Representative flow panel of fresh G-CSF Mobilised Leukopak. Enriched PBMC population with low granulocytes (20.76%), high viability (97.65%), and a high percentage of CD34+ cells (1.68%).

What Makes StemExpress Different

  • Largest and most diverse selection of products available to cover all facets of your research
  • Customisable products that allow flexibility and simplicity in decision making
  • Robust donor pool for effortless selection of the right specimen for your research
  • Same day delivery in select cities for quick access to our products
  • Streamlined process from collection through delivery to guarantee operational excellence and consistent quality products
  • Follows cGMP/cGTP guidelines to ensure high-quality products
  • Uses data management software (ERP & QMS) that ensures traceability and accountability

Cord Blood

StemExpress is a leading supplier of human cord blood and primary cells. StemExpress' cord blood is needle aspirated from the umbilical cord vein into a sterile collection bag containing the anticoagulant citrate phosphate double dextrose (CP2D). Cord blood is shipped directly to customers after collection or processed into a specific primary cell population at GLP regulatory-compliant laboratory.

Maternal Blood

StemExpress draws very small volumes of human maternal blood from IRB consented expecting donors. Maternal blood is collected from all types of pregnancies, including aneuploidy positive pregnancies, at varying gestations and demographics.

The use of maternal blood for research purposes has led to advancements in the non-invasive prenatal testing (NIPTs) that help foretell many fetal abnormalities and biomarkers that predict birth complications.

Diseased Peripheral Blood

StemExpress is a premier provider of human diseased peripheral blood, plasma, serum, and peripheral blood mononuclear cells (PBMCs). Using their strategically located collection centers and partnering hospitals, they are able to ensure access to donors and the delivery of fresh products to researchers in need of rare blood samples.

Diseased peripheral blood samples are collected from volunteers participating in Institutional Review Board (IRB) approved donor programs. All collections follow a standardised collection procedure to guarantee consistency from donor to donor, eliminating variability in the collection procedure. In addition, donors may be eligible for recall every 8 weeks (pending the health of the donor), which allows for the study of disease progression within a single donor.

Product Options

Whole: Up to 100mLs of fresh whole blood is collected in 10mL EDTA tubes. Custom collection tube and anticoagulant available.

Plasma: Samples are collected in 5mL and 10mL volumes in EDTA tubes. All samples are provided in either fresh or frozen formats.

Serum: Samples are collected in 5mL and 10mL volumes in the absence of an anticoagulant. All samples are provided in either fresh or frozen formats.

PBMCs: Diseased cells are available in 5x10e6 and 1x10e7 cells/vial in either fresh or frozen formats.

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