DH82 Cells
USD$395.00*
Products are shipped frozen on dry ice in cryotubes. Each cryotube typically contains 3 × 106 cells for adherent lines or 5 × 106 cells for suspension lines (refer to the batch CoA for details).
General information
| Description | DH-82 cells, derived from the malignant histiocytosis of a ten-year-old male Golden Retriever, are a cornerstone in the study of canine immunology and related diseases. These cells exhibit a macrophage-like morphology, mirroring the key functions of human macrophages, thereby providing a relevant model for investigating various aspects of canine health, particularly immune system-related conditions. A defining characteristic of DH-82 cells is their capability to phagocytize latex particles, an essential function of macrophages responsible for the elimination of foreign substances in the body. This property positions DH-82 cells as a robust tool for delving into the immune responses of dogs, especially in the face of infections and inflammatory diseases. The expression of Fc gamma receptors in DH-82 cells is a notable trait. These receptors are integral to immune responses, as they bind to antibodies and facilitate the phagocytosis of antibody-coated pathogens or particles. This makes DH-82 cells particularly valuable in studies focusing on immune responses and antibody-dependent cellular cytotoxicity (ADCC). In contrast, DH-82 cells do not express Fc mu and C3b receptors. The absence of Fc mu receptors, typically found on B cells and involved in antigen presentation, and C3b receptors, which bind to complement proteins in immune responses, provides a controlled setting for examining specific immune mechanisms that might be influenced by these receptors. Additionally, DH-82 cells are non-producers of IL-1, a pivotal cytokine in inflammatory responses. This feature offers a unique perspective for investigating the role of IL-1 in various biological processes and understanding IL-1-mediated diseases. In the realm of infectious diseases, DH-82 cells have proven particularly useful in studying canine monocytic ehrlichiosis (CME), a tick-borne illness caused by Ehrlichia canis. The cells provide a conducive environment for the bacterium's growth, aiding in the exploration of the disease's development and potential treatments. The doubling time of DH-82 cells, approximately 26 hours, is also a critical aspect in their use, influencing experimental design and the interpretation of results. |
|---|---|
| Organism | Dog |
| Disease | Canine histiocytic sarcom |
| Synonyms | DH-82, DH 82 |
Characteristics
| Breed/Subspecies | Golden Retriever |
|---|---|
| Age | 10 years |
| Gender | Male |
| Morphology | Macrophage-like |
| Cell type | Histiocyte |
| Growth properties | Adherent |
Regulatory Data
| Citation | DH82 (Cytion catalog number 305003) |
|---|---|
| Biosafety level | 1 |
| NCBI_TaxID | 9615 |
| CellosaurusAccession | CVCL_2018 |
Biomolecular Data
Handling
| Culture Medium | EMEM (MEM Eagle), w: 2 mM L-Glutamine, w: 2.2 g/L NaHCO3, w: EBSS (Cytion article number 820100a) |
|---|---|
| Supplements | Supplement the medium with 10% FBS and 1% NEAA |
| Dissociation Reagent | Accutase |
| Subculturing | Remove the old medium from the adherent cells and wash them with PBS that lacks calcium and magnesium. For T25 flasks, use 3-5 ml of PBS, and for T75 flasks, use 5-10 ml. Then, cover the cells completely with Accutase, using 1-2 ml for T25 flasks and 2.5 ml for T75 flasks. Let the cells incubate at room temperature for 8-10 minutes to detach them. After incubation, gently mix the cells with 10 ml of medium to resuspend them, then centrifuge at 300xg for 3 minutes. Discard the supernatant, resuspend the cells in fresh medium, and transfer them into new flasks that already contain fresh medium. |
| Fluid renewal | 2 to 3 times per week |
| Freeze medium | As a cryopreservation medium, we use complete growth medium (including FBS) + 10% DMSO for adequate post-thaw viability, or CM-1 (Cytion catalog number 800100), which includes optimized osmoprotectants and metabolic stabilizers to enhance recovery and reduce cryo-induced stress. |
| Thawing and Culturing Cells |
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| Incubation Atmosphere | 37°C, 5% CO2, humidified atmosphere. |
| Shipping Conditions | Cryopreserved cell lines are shipped on dry ice in validated, insulated packaging with sufficient refrigerant to maintain approximately −78 °C throughout transit. On receipt, inspect the container immediately and transfer vials without delay to appropriate storage. |
| Storage Conditions | For long-term preservation, place vials in vapor-phase liquid nitrogen at about −150 to −196 °C. Storage at −80 °C is acceptable only as a short interim step before transfer to liquid nitrogen. |
Quality Control & Molecular Analysis
| Sterility | Mycoplasma contamination is excluded using both PCR-based assays and luminescence-based mycoplasma detection methods. To ensure there is no bacterial, fungal, or yeast contamination, cell cultures are subjected to daily visual inspections. |
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Certificate of Analysis (CoA)
| Lot Number | Certificate Type | Date | Catalog Number |
|---|---|---|---|
| 305003-250823 | Certificate of Analysis | 23. May. 2025 | 305003 |