Hematopoiesis is the process by which blood cells are produced. Hematopoietic stem cells (HSC) are generally found in the bone marrow, where they self-renew and begin their journey of differentiating into all the different blood cell types. During differentiation, HSCs progress through various committed progenitor stages before fully differentiating into mature cell types.
While there is some scientific debate around how to characterize hematopoietic stem and progenitor cells (HSPCs) simply by phenotypic markers, most believe the cell types cannot be fully characterized without functional testing of differentiation capacity. Regardless, it is widely accepted that the CD34 marker is indicative of stem and progenitor cells, and thus it is important to assess presence of the CD34 marker when working with HSPCs.
Hematopoietic progenitor cells can be categorized into either myeloid progenitors or
lymphoid progenitors. The myeloid progenitor cells are able to give rise to
myeloid lineage cells including platelets, eosinophils, basophils,
neutrophils, monocytes, and erythrocytes. Lymphoid progenitor cells are capable
of differentiating into T-cells and B-cells, which are key players in adaptive
Hematopoietic stem cells progress down a differentiation
pathway to committed progenitors in the bone marrow. At that time, they
typically leave the bone marrow and enter the peripheral blood and tissues,
where they complete differentiation into the various mature immune cell
Working with hematopoietic stem/progenitor
and immune cells requires not only a variety of donors, but also patience and skill to
isolate specific cell types. Lonza offers a broad variety of options for your
research and can help eliminate the hassle of finding donors and doing tedious
cell isolations – all you need to do is thaw and culture. Let Lonza simplify
your research with purified hematopoietic cells and media.
Performance is king, especially cell performance. There is no need to stress about performance of your cells because Lonza guarantees viable cell counts and purity claims. Now you can get more for your money and stop questioning the integrity of your cells.
Cells Supported by an Optimized Culture System
Your cells need sustenance to perform well. Depending upon your cell of choice, use Lonza’s HPGM™ or LGM-3™ Medium for optimal performance. In addition, if you’re working with hematopoietic stem and progenitor cells, Lonza offers non-irradiated stromal cells for use as a feeder layer, allowing proliferation and differentiation of progenitors to continue for weeks without the need for additional exogenous cytokines.
Choices in Cell Type and Tissue Source
Cells from different tissue sources can behave differently. That’s why Lonza offers a
variety of hematopoietic cell types from different tissue sources. Explore our
offering of cells isolated from bone marrow, cord blood, and peripheral blood. Don't see the cells you need? Contact Cells on Demand to inquire about our custom cell isolation services.
Normal human bone marrow donors are healthy males and
non-pregnant females between the ages of 18 and 45 years old. All bone marrow
and peripheral blood donors are assessed for good general health via acceptable
vital signs and hematology values and have a negative medical history of heart
disease, kidney disease, liver disease, cancer, epilepsy and blood or bleeding
disorders. In addition, each donor tests negative for HIV-1, HIV-2, hepatitis B
and hepatitis C. Where donor testing is not possible, cell products are tested
for the presence of viral nucleic acid from HIV, Hepatitis B Virus, and Hepatitis
C Virus. Poietics™ Primary Human Immune Cells purity levels are verified
via flow cytometric analysis. Purchases are subject to Lonza's terms and conditions.
Lonza's normal human bone marrow and immune cells are provided
for research use only. This material may not be used a) in humans, b) in
conjunction with human clinical trials, c) in association with human
diagnostics. The material is not transferable to another person or