IMDM (Iscove's Modified Dulbecco's Medium)
Quick Facts
| Feature | Information |
|---|
| Medium Type | Nutrient-rich basal medium |
| Developed From | DMEM |
| Original Developer | Iscove & Melchers (1978) |
| Best For | Hematopoietic and immune cell culture |
| Common Supplements | FBS, GlutaMAX/L-Glutamine, β-Mercaptoethanol, Cytokines |
| Storage | 2-8°C, protected from light |
Overview
Iscove's Modified Dulbecco's Medium (IMDM) is a nutrient-enriched derivative of DMEM formulated to support rapidly proliferating and metabolically demanding mammalian cells. Compared with DMEM, IMDM contains increased concentrations of amino acids, vitamins, selenium, sodium pyruvate, and buffering components, making it particularly suitable for hematopoietic cells, lymphocytes, hybridomas, and stem cell cultures.
It is widely used in immunology, hematology, stem cell biology, monoclonal antibody production, and cell therapy research.
Key Features
- Higher nutrient content than DMEM
- Enhanced buffering capacity
- Supports high-density cell cultures
- Performs well under serum-reduced conditions
- Optimized for suspension and hematopoietic cells
- Widely used in immunology and cell therapy workflows
Typical Supplements
| Supplement | Purpose |
|---|
| FBS | Growth support |
| GlutaMAX™ or L-Glutamine | Nitrogen metabolism |
| Penicillin-Streptomycin | Antibiotic |
| β-Mercaptoethanol | Antioxidant support for lymphocytes |
| HEPES | Additional buffering |
| Cytokines | Cell-specific proliferation and differentiation |
Common Applications
Hematopoietic Cells
- Hematopoietic stem cells (HSCs)
- Colony-forming unit (CFU) assays
- Bone marrow cultures
Immune Cells
- Peripheral blood mononuclear cells (PBMCs)
- T lymphocytes
- B lymphocytes
- Monocytes
- Macrophages
- Dendritic cells
Hybridoma and Myeloma Culture
- Hybridoma maintenance
- Monoclonal antibody production
- Myeloma cell culture
Cell Therapy
- CAR-T cell manufacturing
- Ex vivo immune cell expansion
- Immunotherapy research
Advantages
- Excellent support for immune and hematopoietic cells
- Rich nutrient formulation
- Improved buffering compared with DMEM
- Supports high-density cultures
- Suitable for serum-reduced culture systems
- Well established in immunology research
Limitations
- More expensive than DMEM
- Requires appropriate supplementation
- Generally unnecessary for many routine adherent cell lines
- Rich formulation may not be optimal for all cell types
Comparison with Related Media
| Medium | Best Suited For |
|---|
| IMDM | Hematopoietic cells, PBMCs, lymphocytes, hybridomas |
| RPMI-1640 | Routine suspension and immune cell culture |
| DMEM | Adherent immortalized cell lines |
| DMEM/F-12 | Stem cells, neural cells and primary cultures |
References
- Iscove NN, Melchers F. Journal of Experimental Medicine (1978).
- Thermo Fisher Scientific. Gibco™ IMDM Product Information.
- ATCC. Animal Cell Culture Guide.
- Freshney RI. Culture of Animal Cells: A Manual of Basic Technique and Specialized Applications.