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Start experiments confidently with ready-to-use, ethically sourced, CD34+ stem and progenitor cells from adult human bone marrow. With personalized service, custom products, flexible delivery times, and the option to reserve entire lots to prescreen cells for applications, we help you get the cells you need.
Isolated immunomagnetically using positive selection and cryopreserved in serum-free medium, cells are collected using Institutional Review Board (IRB)-approved consent forms and protocols. Additional documentation to meet institutional requirements and high-resolution HLA typing (Class I and Class II alleles and CMV status) are available upon request. Heparin is added during collection as an anticoagulant. Donor specifications (e.g. BMI category, smoking status, ethnicity, etc.) can be requested in the comment box above, after selecting from the product options. Donors are screened for HIV-1, HIV-2, hepatitis B, and hepatitis C.
Bone marrow CD34+ cells can be used together with a number of products, including StemSpan™, MethoCult™, MegaCult™, and MyeloCult™ to study hematopoiesis and the differentiation of these rare cell types.
Certain products are only available in select territories. Please contact your local sales representative or Product & Scientific Support at techsupport@stemcell.com for further information.
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.
An In Vitro Model of Hematotoxicity: Differentiation of Bone Marrow-Derived Stem/Progenitor Cells into Hematopoietic Lineages and Evaluation of Lineage-Specific Hematotoxicity.
P. K. Mahalingaiah et al.
Current protocols in toxicology 2018 MAY
Abstract
Hematotoxicity is a significant issue for drug safety and can result from direct cytotoxicity toward circulating mature blood cell types as well as targeting of immature blood-forming stem cells/progenitor cells in the bone marrow. In vitro models for understanding and investigating the hematotoxicity potential of new test items/drugs are critical in early preclinical drug development. The traditional method, colony forming unit (CFU) assay, is commonly used and has been validated as a method for hematotoxicity screening. The CFU assay has multiple limitations for its application in investigative work. In this paper, we describe a detailed protocol for a liquid-culture, microplate-based in vitro hematotoxicity assay to evaluate lineage-specific (myeloid, erythroid, and megakaryocytic) hematotoxicity at different stages of differentiation. This assay has multiple advantages over the traditional CFU assay, including being suitable for high-throughput screening and flexible enough to allow inclusion of additional endpoints for mechanistic studies. Therefore, it is an extremely useful tool for scientists in pharmaceutical discovery and development. {\textcopyright} 2018 by John Wiley & Sons, Inc.
Paediatric patients with acute leukaemia and KMT2A (MLL) rearrangement show a distinctive expression pattern of histone deacetylases.
N. Vega-Garc\'ia et al.
British journal of haematology 2018 AUG
Abstract
Histone deacetylase inhibitors (HDACi) had emerged as promising drugs in leukaemia, but their toxicity due to lack of specificity limited their use. Therefore, there is a need to elucidate the role of HDACs in specific settings. The study of HDAC expression in childhood leukaemia could help to choose more specific HDACi for selected candidates in a personalized approach. We analysed HDAC1-11, SIRT1, SIRT7, MEF2C and MEF2D mRNA expression in 211 paediatric patients diagnosed with acute leukaemia. There was a global overexpression of HDACs, while specific HDACs correlated with clinical and biological features, and some even predicted outcome. Thus, some HDAC and MEF2C profiles probably reflected the lineage and the maturation of the blasts and some profiles identified specific oncogenic pathways active in the leukaemic cells. Specifically, we identified a distinctive signature for patients with KMT2A (MLL) rearrangement, with high HDAC9 and MEF2D expression, regardless of age, KMT2A partner and lineage. Moreover, we observed an adverse prognostic value of HDAC9 overexpression, regardless of KMT2A rearrangement. Our results provide useful knowledge on the complex picture of HDAC expression in childhood leukaemia and support the directed use of specific HDACi to selected paediatric patients with acute leukaemia.
Integrating Proteomics and Transcriptomics for Systematic Combinatorial Chimeric Antigen Receptor Therapy of AML.
Perna F et al.
Cancer cell 2017 OCT
Abstract
Chimeric antigen receptor (CAR) therapy targeting CD19 has yielded remarkable outcomes in patients with acute lymphoblastic leukemia. To identify potential CAR targets in acute myeloid leukemia (AML), we probed the AML surfaceome for overexpressed molecules with tolerable systemic expression. We integrated large transcriptomics and proteomics datasets from malignant and normal tissues, and developed an algorithm to identify potential targets expressed in leukemia stem cells, but not in normal CD34+CD38- hematopoietic cells, T cells, or vital tissues. As these investigations did not uncover candidate targets with a profile as favorable as CD19, we developed a generalizable combinatorial targeting strategy fulfilling stringent efficacy and safety criteria. Our findings indicate that several target pairings hold great promise for CAR therapy of AML.
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