Human Mononuclear Cells: HMNC. Peripheral Blood versions also commonly known as “PBMC.”
Human Mononuclear Cells from Bone Marrow: HMNC-BM
Human Mononuclear Cells from Bone Marrow (HMNC-BM) comprise a heterogeneous population of single-nucleated bone marrow cells with single, round nucleus, routinely separated from mature red blood cells and granulocytes.
Description
Human Mononuclear Cells from Bone Marrow (HMNC-BM) comprise a heterogeneous population of single-nucleated bone marrow cells that serve as a foundational tool in immunological and hematological research. Characterized by a single, round nucleus, these mononuclear cells are routinely separated from mature red blood cells and granulocytes during precise cell isolation procedures, most commonly utilizing a Ficoll density-gradient centrifugation method. This cellular fraction includes representatives of both lymphoid and myeloid lineages, encompassing specialized lymphocytes (such as t cells, b cells, and nk cells), monocytes, and dendritic cells. Crucially, the bone marrow mononuclear cells compartment also harbors rare, primitive adult stem cells and multipotent progenitor cells. When obtained from a healthy donor and cryopreserved rather than being expanded or immortalized in vitro as a continuous cell line, they retain their native physiological characteristics and complex in vivo-like cellular interactions.
In the human body, these mononuclear populations are primarily found in bone marrow tissue, embedded within a specialized microenvironment where they interact closely with a supportive stromal network. However, they do not reside there exclusively; similar hematopoietic stem cells and early progenitor cells also exist transiently within peripheral blood (particularly following pharmacological mobilization), as well as in other hematopoietic sites like umbilical cord blood and the fetal liver. While other accessible compartments like peripheral blood or the stromal fraction of adipose tissue contain related mononuclear cell type profiles, the bone marrow aspirate remains a classic source for capturing a highly concentrated mix of primitive marrow-derived lineages.
The primary function of this cellular collective is to maintain blood cell homeostasis and coordinate robust human body defense mechanisms. Within this population, it is crucial to distinguish between distinct functional subsets: long-term hematopoietic stem cells (LT-HSCs) possess life-long self-renewal capacity, whereas short-term progenitors drive rapid, lineage-specific differentiation. These hematopoietic stem and progenitor cells give rise to all specialized lymphoid cells and myeloid cells required for immune surveillance, circulating throughout the body to fight bacterial and viral infections and target malignant cells. Concurrently, while non-hematopoietic mesenchymal stem cells—also designated as mesenchymal stromal cells or bm msc—are vital components of the marrow stromal compartment, they are relatively rare in freshly isolated BM MNC preparations after standard density-gradient separation and typically require subsequent plastic-adherent culture expansion to be detected or assayed. When active, these structural cells secrete a wide profile of cytokines and chemokines that regulate localized inflammation and mediate biological effects across various organs, including metabolic cross-talk with distant skeletal muscles and adipocytes.
In laboratory settings, the bone marrow mononuclear cell mixture serves as an invaluable in vitro model for studying complex biological and pathological processes. Researchers utilize HMNC-BM to investigate the developmental mechanisms of autoimmune disorders, infectious diseases, and transplant immunology, or as a relevant human primary tissue baseline for examining hematological malignancies. While peripheral blood mononuclear cells or established lines are more typical for high-throughput screening platforms, bone marrow-derived fractions are regularly deployed in targeted assays to support vaccine development and targeted drug evaluations. Furthermore, because the bone marrow compartment contains circulating progenitors with vasculogenic potential—often studied as endothelial progenitor cells, though their exact definitions and phenotypic surface markers vary and remain debated—they are frequently utilized in neovascularization models. Investigators leverage these primitive subsets to optimize stem cell therapy protocols and study advanced tissue repair, looking for novel ways to reverse cellular damage and restore function in an ischemic tissue, such as in peripheral limb ischemia or infarcted myocardium.
Human Mononuclear Cells derived from Bone Marrow (HMNC-BM) are widely used in research and clinical applications every day, and provide a useful tool for studying various aspects of pathology and biology in vitro. Cell Applications HMNC are cryopreserved immediately after isolation.
HMNC-BM are important tools for studies in:
- Immunology (including auto-immune disorders), infectious disease, hematological malignancies, vaccine development, transplant immunology
- High-throughput screening
- Neovascularization to improve limb ischemia and in cell therapy to repair ischemic and infracted myocardium.
- Human body defense mechanisms critical in the immune system to fight bacterial and viral infections, and function as immune surveillance network to kill tumor cells.
- The secretion of cytokines to regulate immune response and inflammation
- Biological effects on tissue and organs.
- Chemokine effects on adipocytes and muscles
Details
| Tissue | Normal healthy human bone marrow | |
|---|---|---|
| QC | No HIV-1, Hepatitis B or Hepatitis C Viruses | |
| Cryovial | 5M HMNC-BM frozen right after isolation in FzM w/ 45% FBS, 10% DMSO | |
| Kit | Cryovial Frozen HMNC-BM (690BM-50a), Cltr Med (615-250) | |
| Doublings | N/A – Blood cells don’t proliferate in vitro |
Resources
FAQs
Need More Help?
Visit our comprehensive FAQ page for detailed answers to common questions.
Need More Help?
Visit our comprehensive FAQ page for detailed answers to common questions.
Primary Cell FAQs